diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml index 5a77810..a06d56e 100644 --- a/.github/workflows/main.yml +++ b/.github/workflows/main.yml @@ -1,27 +1,54 @@ name: Build DLL -on: push +on: push jobs: build_dll: - runs-on: windows-latest - steps: - - name: Checkout - uses: actions/checkout@v2 - with: - submodules: 'recursive' - - name: run-vcpkg - uses: lukka/run-vcpkg@v6.0 - with: - vcpkgDirectory: '${{ github.workspace }}/vcpkg' - vcpkgArguments: '@${{ github.workspace }}/vcpkg.txt' - cleanAfterBuild: false - - name: Setup MSBuild - uses: microsoft/setup-msbuild@v1 - - name: Check dependencies - run: 'ls ${{ github.workspace }}/vcpkg/installed/x86-windows-static' - - name: Build DLL - run: 'msbuild SimpleGraphic.vcxproj /p:configuration=release /p:platform=win32' - - name: Archive DLL - uses: actions/upload-artifact@v1.0.0 - with: - name: SimpleGraphic.dll - path: '${{ github.workspace }}/Release/SimpleGraphic.dll' + strategy: + matrix: + include: + - platform: win32 + os: windows-latest + triplet: x86-windows + # - platform: x64 + # os: windows-latest + # triplet: x64-windows + runs-on: ${{ matrix.os }} + env: + VCPKG_DEFAULT_TRIPLET: ${{ matrix.triplet }} + VCPKG_INSTALLED_DIR: ${{ github.workspace }}/vcpkg_installed/ + DEPS_DIR: ${{ github.workspace }}/vcpkg_installed/${{ matrix.triplet }} + steps: + - name: Checkout + uses: actions/checkout@v2 + with: + submodules: "recursive" + - name: run-vcpkg + uses: lukka/run-vcpkg@v10 + with: + vcpkgJsonGlob: "./vcpkg.json" + runVcpkgInstall: true + - name: Setup MSBuild + uses: microsoft/setup-msbuild@v1 + - name: Check dependencies + run: "ls ${{ env.DEPS_DIR }}" + - name: Build DLL + run: "msbuild SimpleGraphic.vcxproj /p:configuration=release /p:platform=${{ matrix.platform }}" + - name: Archive DLL + uses: actions/upload-artifact@v3 + with: + name: SimpleGraphic-${{ matrix.triplet }}.dll + path: "${{ github.workspace }}/Release/SimpleGraphic.dll" + - name: Archive DLL symbols + uses: actions/upload-artifact@v3 + with: + name: SimpleGraphic-${{ matrix.triplet }}.pdb + path: "${{ github.workspace }}/Release/SimpleGraphic.pdb" + - name: Archive dependency DLLs + uses: actions/upload-artifact@v3 + with: + name: SimpleGraphic-${{ matrix.triplet }}-deps.dll + path: "${{ env.DEPS_DIR }}/bin/*.dll" + - name: Archive dependency DLL symbols + uses: actions/upload-artifact@v3 + with: + name: SimpleGraphic-${{ matrix.triplet }}-deps.pdb + path: "${{ env.DEPS_DIR }}/bin/*.pdb" \ No newline at end of file diff --git a/.gitignore b/.gitignore index e2f4007..d341754 100644 --- a/.gitignore +++ b/.gitignore @@ -11,3 +11,4 @@ /Debug/ /Release/ /SimpleGraphic.vcxproj.user +vcpkg_installed/ diff --git a/CMakeLists.txt b/CMakeLists.txt new file mode 100644 index 0000000..1072ac3 --- /dev/null +++ b/CMakeLists.txt @@ -0,0 +1,138 @@ +project(SimpleGraphic C CXX) +cmake_minimum_required(VERSION 3.15) +set(CMAKE_CXX_STANDARD_REQUIRED ON) +set(CMAKE_CXX_STANDARD 17) + +if (APPLE) + enable_language(OBJCXX) +endif () + +list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake") + +include(${PROJECT_SOURCE_DIR}/vcpkg/scripts/buildsystems/vcpkg.cmake) + +set(SIMPLEGRAPHIC_SOURCES + "config.h" + "engine/common/common.cpp" + "engine/common/console.cpp" + "engine/common/console.h" + "engine/common/keylist.h" + "engine/common/memtrak3.cpp" + "engine/common/memtrak3.h" + "engine/common/streams.cpp" + "engine/common/streams.h" + "engine/core/core_config.cpp" + "engine/core/core_config.h" + "engine/core/core_image.cpp" + "engine/core/core_image.h" + "engine/core/core_main.cpp" + "engine/core/core_main.h" + "engine/core/core_video.cpp" + "engine/core/core_video.h" + "engine/render/r_font.cpp" + "engine/render/r_font.h" + "engine/render/r_main.cpp" + "engine/render/r_main.h" + "engine/render/r_texture.cpp" + "engine/render/r_texture.h" + # "engine/system/win/sys_console.cpp" + "engine/system/win/sys_console_unix.cpp" + "engine/system/win/sys_local.h" + "engine/system/win/sys_main.cpp" + "engine/system/win/sys_opengl.cpp" + "engine/system/win/sys_video.cpp" + "engine/system/sys_console.h" + "engine/system/sys_main.h" + "engine/system/sys_opengl.h" + "engine/system/sys_video.h" + "win/entry.cpp" + "stb_image.h" + "stb_image_write.h" + "ui.h" + "ui_api.cpp" + "ui_console.cpp" + "ui_console.h" + "ui_debug.cpp" + "ui_debug.h" + "ui_local.h" + "ui_main.cpp" + "ui_main.h" + "ui_subscript.cpp" + "ui_subscript.h" +) + +set (SIMPLEGRAPHIC_PLATFORM_SOURCES) +if (APPLE) + set (SIMPLEGRAPHIC_PLATFORM_SOURCES + "engine/system/win/sys_macos.mm" + ) +endif() + +add_library(SimpleGraphic SHARED + ${SIMPLEGRAPHIC_SOURCES} + ${SIMPLEGRAPHIC_PLATFORM_SOURCES} +) + +target_compile_definitions(SimpleGraphic + PRIVATE + "GLFW_INCLUDE_NONE" + "GL_SILENCE_DEPRECATION" + "SIMPLEGRAPHIC_EXPORTS" +) + +target_include_directories(SimpleGraphic + PUBLIC + "${CMAKE_CURRENT_SOURCE_DIR}" + "${CMAKE_CURRENT_SOURCE_DIR}/engine" +) + +find_package(unofficial-angle CONFIG REQUIRED) +find_package(fmt CONFIG REQUIRED) +find_package(glfw3 CONFIG REQUIRED) +find_package(LuaJit REQUIRED) +find_package(re2 CONFIG REQUIRED) +find_package(Threads REQUIRED) +find_package(ZLIB REQUIRED) + +target_include_directories(SimpleGraphic + PRIVATE + ${CMAKE_CURRENT_SOURCE_DIR}/dep/glad/include + ${JPEG_INCLUDE_DIR} + ${LUAJIT_INCLUDE_DIR} +) + +if (CMAKE_SYSTEM_NAME MATCHES "Linux") + target_link_options(SimpleGraphic + PRIVATE + "-export-dynamic" + ) +endif () + +if (WIN32) + target_link_libraries(SimpleGraphic + PRIVATE + "winmm.lib" + ) +endif () + +if (APPLE) + find_library(CORE_FOUNDATION_LIBRARY CoreFoundation) + find_library(APPLICATION_SERVICES_LIBRARY ApplicationServices) + target_link_libraries(SimpleGraphic + PRIVATE + ${CORE_FOUNDATION_LIBRARY} + ${APPLICATION_SERVICES_LIBRARY} + ) +endif () + +target_link_libraries(SimpleGraphic + PRIVATE + unofficial::angle::libEGL + unofficial::angle::libGLESv2 + fmt::fmt + glfw + ${LUAJIT_LIBRARIES} + re2::re2 + Threads::Threads + ZLIB::ZLIB +) \ No newline at end of file diff --git a/SimpleGraphic.vcxproj b/SimpleGraphic.vcxproj index 16f239c..29a966e 100644 --- a/SimpleGraphic.vcxproj +++ b/SimpleGraphic.vcxproj @@ -107,20 +107,24 @@ Level3 true - WIN32;_DEBUG;SIMPLEGRAPHIC_EXPORTS;_WINDOWS;_USRDLL;%(PreprocessorDefinitions) + WIN32;SIMPLEGRAPHIC_EXPORTS;_WINDOWS;_USRDLL;_ITERATOR_DEBUG_LEVEL=0;%(PreprocessorDefinitions) true NotUsing - $(SolutionDir);$(SolutionDir)engine;$(SolutionDir)vcpkg\installed\x86-windows-static\include;%(AdditionalLibraryDirectories)LuaJIT/src;%(AdditionalIncludeDirectories) + $(SolutionDir);$(SolutionDir)engine;$(SolutionDir)vcpkg_installed\x86-windows\include;%(AdditionalLibraryDirectories)LuaJIT/src;%(AdditionalIncludeDirectories) 4996 + Async + stdcpp17 + MultiThreaded + true Windows true false - $(SolutionDir)vcpkg\installed\x86-windows-static\lib;%(AdditionalLibraryDirectories)LuaJIT/src;%(AdditionalLibraryDirectories) - gif.lib;jpeg.lib;lzma.lib;libpng16.lib;lua51.lib;tiff.lib;zlib.lib;opengl32.lib;winmm.lib;%(AdditionalDependencies) + $(SolutionDir)vcpkg_installed\x86-windows\lib;$(SolutionDir)vcpkg_installed\x86-windows\debug\lib;%(AdditionalLibraryDirectories) + d3d11.lib;d3d9.lib;dxgi.lib;dxguid.lib;libANGLE.lib;libGLESv2.lib;re2.lib;lua51.lib;zlib.lib;opengl32.lib;winmm.lib;glfw3dll.lib;fmt.lib;%(AdditionalDependencies) @@ -134,9 +138,12 @@ NotUsing - $(SolutionDir);$(SolutionDir)engine;$(SolutionDir)vcpkg\installed\x86-windows-static\include;%(AdditionalIncludeDirectories) + $(SolutionDir);$(SolutionDir)engine;$(SolutionDir)vcpkg_installed\x86-windows-static\include;%(AdditionalIncludeDirectories) + $(SolutionDir);$(SolutionDir)engine;$(SolutionDir)vcpkg_installed\x86-windows\include;%(AdditionalIncludeDirectories) 4996 MultiThreaded + Async + stdcpp17 Windows @@ -144,8 +151,8 @@ true true false - $(SolutionDir)vcpkg\installed\x86-windows-static\lib;%(AdditionalLibraryDirectories) - gif.lib;jpeg.lib;lzma.lib;libpng16.lib;lua51.lib;zlib.lib;opengl32.lib;winmm.lib;%(AdditionalDependencies) + $(SolutionDir)vcpkg_installed\x86-windows\lib;%(AdditionalLibraryDirectories) + d3d11.lib;d3d9.lib;dxgi.lib;dxguid.lib;libANGLE.lib;libGLESv2.lib;re2.lib;lua51.lib;zlib.lib;opengl32.lib;winmm.lib;glfw3dll.lib;fmt.lib;%(AdditionalDependencies) diff --git a/cmake/FindLuaJit.cmake b/cmake/FindLuaJit.cmake new file mode 100644 index 0000000..72795af --- /dev/null +++ b/cmake/FindLuaJit.cmake @@ -0,0 +1,38 @@ +# - Try to find luajit +# Once done this will define +# LUAJIT_FOUND - System has luajit +# LUAJIT_INCLUDE_DIRS - The luajit include directories +# LUAJIT_LIBRARIES - The libraries needed to use luajit + +find_package(PkgConfig) +if (PKG_CONFIG_FOUND) + pkg_check_modules(PC_LUAJIT QUIET luajit) +endif() + +set(LUAJIT_DEFINITIONS ${PC_LUAJIT_CFLAGS_OTHER}) + +find_path(LUAJIT_INCLUDE_DIR luajit.h + PATHS ${PC_LUAJIT_INCLUDEDIR} ${PC_LUAJIT_INCLUDE_DIRS} + PATH_SUFFIXES luajit-2.0 luajit-2.1) + +if(MSVC) + list(APPEND LUAJIT_NAMES lua51) +elseif(MINGW) + list(APPEND LUAJIT_NAMES libluajit libluajit-5.1) +else() + list(APPEND LUAJIT_NAMES luajit-5.1) +endif() + +find_library(LUAJIT_LIBRARY NAMES ${LUAJIT_NAMES} + PATHS ${PC_LUAJIT_LIBDIR} ${PC_LUAJIT_LIBRARY_DIRS}) + +set(LUAJIT_LIBRARIES ${LUAJIT_LIBRARY}) +set(LUAJIT_INCLUDE_DIRS ${LUAJIT_INCLUDE_DIR}) + +include(FindPackageHandleStandardArgs) +# handle the QUIETLY and REQUIRED arguments and set LUAJIT_FOUND to TRUE +# if all listed variables are TRUE +find_package_handle_standard_args(LuaJit DEFAULT_MSG + LUAJIT_LIBRARY LUAJIT_INCLUDE_DIR) + +mark_as_advanced(LUAJIT_INCLUDE_DIR LUAJIT_LIBRARY) diff --git a/dep/glad/include/glad/egl.h b/dep/glad/include/glad/egl.h new file mode 100644 index 0000000..79fa559 --- /dev/null +++ b/dep/glad/include/glad/egl.h @@ -0,0 +1,1039 @@ +/** + * Loader generated by glad 2.0.3 on Wed Jan 18 23:06:57 2023 + * + * SPDX-License-Identifier: (WTFPL OR CC0-1.0) AND Apache-2.0 + * + * Generator: C/C++ + * Specification: egl + * Extensions: 0 + * + * APIs: + * - egl=1.0 + * + * Options: + * - ALIAS = False + * - DEBUG = False + * - HEADER_ONLY = True + * - LOADER = False + * - MX = False + * - ON_DEMAND = False + * + * Commandline: + * --api='egl=1.0' --extensions='' c --header-only + * + * Online: + * http://glad.sh/#api=egl%3D1.0&extensions=&generator=c&options=HEADER_ONLY + * + */ + +#ifndef GLAD_EGL_H_ +#define GLAD_EGL_H_ + + +#define GLAD_EGL +#define GLAD_OPTION_EGL_HEADER_ONLY + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef GLAD_PLATFORM_H_ +#define GLAD_PLATFORM_H_ + +#ifndef GLAD_PLATFORM_WIN32 + #if defined(_WIN32) || defined(__WIN32__) || defined(WIN32) || defined(__MINGW32__) + #define GLAD_PLATFORM_WIN32 1 + #else + #define GLAD_PLATFORM_WIN32 0 + #endif +#endif + +#ifndef GLAD_PLATFORM_APPLE + #ifdef __APPLE__ + #define GLAD_PLATFORM_APPLE 1 + #else + #define GLAD_PLATFORM_APPLE 0 + #endif +#endif + +#ifndef GLAD_PLATFORM_EMSCRIPTEN + #ifdef __EMSCRIPTEN__ + #define GLAD_PLATFORM_EMSCRIPTEN 1 + #else + #define GLAD_PLATFORM_EMSCRIPTEN 0 + #endif +#endif + +#ifndef GLAD_PLATFORM_UWP + #if defined(_MSC_VER) && !defined(GLAD_INTERNAL_HAVE_WINAPIFAMILY) + #ifdef __has_include + #if __has_include() + #define GLAD_INTERNAL_HAVE_WINAPIFAMILY 1 + #endif + #elif _MSC_VER >= 1700 && !_USING_V110_SDK71_ + #define GLAD_INTERNAL_HAVE_WINAPIFAMILY 1 + #endif + #endif + + #ifdef GLAD_INTERNAL_HAVE_WINAPIFAMILY + #include + #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) && WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP) + #define GLAD_PLATFORM_UWP 1 + #endif + #endif + + #ifndef GLAD_PLATFORM_UWP + #define GLAD_PLATFORM_UWP 0 + #endif +#endif + +#ifdef __GNUC__ + #define GLAD_GNUC_EXTENSION __extension__ +#else + #define GLAD_GNUC_EXTENSION +#endif + +#define GLAD_UNUSED(x) (void)(x) + +#ifndef GLAD_API_CALL + #if defined(GLAD_API_CALL_EXPORT) + #if GLAD_PLATFORM_WIN32 || defined(__CYGWIN__) + #if defined(GLAD_API_CALL_EXPORT_BUILD) + #if defined(__GNUC__) + #define GLAD_API_CALL __attribute__ ((dllexport)) extern + #else + #define GLAD_API_CALL __declspec(dllexport) extern + #endif + #else + #if defined(__GNUC__) + #define GLAD_API_CALL __attribute__ ((dllimport)) extern + #else + #define GLAD_API_CALL __declspec(dllimport) extern + #endif + #endif + #elif defined(__GNUC__) && defined(GLAD_API_CALL_EXPORT_BUILD) + #define GLAD_API_CALL __attribute__ ((visibility ("default"))) extern + #else + #define GLAD_API_CALL extern + #endif + #else + #define GLAD_API_CALL extern + #endif +#endif + +#ifdef APIENTRY + #define GLAD_API_PTR APIENTRY +#elif GLAD_PLATFORM_WIN32 + #define GLAD_API_PTR __stdcall +#else + #define GLAD_API_PTR +#endif + +#ifndef GLAPI +#define GLAPI GLAD_API_CALL +#endif + +#ifndef GLAPIENTRY +#define GLAPIENTRY GLAD_API_PTR +#endif + +#define GLAD_MAKE_VERSION(major, minor) (major * 10000 + minor) +#define GLAD_VERSION_MAJOR(version) (version / 10000) +#define GLAD_VERSION_MINOR(version) (version % 10000) + +#define GLAD_GENERATOR_VERSION "2.0.3" + +typedef void (*GLADapiproc)(void); + +typedef GLADapiproc (*GLADloadfunc)(const char *name); +typedef GLADapiproc (*GLADuserptrloadfunc)(void *userptr, const char *name); + +typedef void (*GLADprecallback)(const char *name, GLADapiproc apiproc, int len_args, ...); +typedef void (*GLADpostcallback)(void *ret, const char *name, GLADapiproc apiproc, int len_args, ...); + +#endif /* GLAD_PLATFORM_H_ */ + +#define EGL_ALPHA_SIZE 0x3021 +#define EGL_BAD_ACCESS 0x3002 +#define EGL_BAD_ALLOC 0x3003 +#define EGL_BAD_ATTRIBUTE 0x3004 +#define EGL_BAD_CONFIG 0x3005 +#define EGL_BAD_CONTEXT 0x3006 +#define EGL_BAD_CURRENT_SURFACE 0x3007 +#define EGL_BAD_DISPLAY 0x3008 +#define EGL_BAD_MATCH 0x3009 +#define EGL_BAD_NATIVE_PIXMAP 0x300A +#define EGL_BAD_NATIVE_WINDOW 0x300B +#define EGL_BAD_PARAMETER 0x300C +#define EGL_BAD_SURFACE 0x300D +#define EGL_BLUE_SIZE 0x3022 +#define EGL_BUFFER_SIZE 0x3020 +#define EGL_CONFIG_CAVEAT 0x3027 +#define EGL_CONFIG_ID 0x3028 +#define EGL_CORE_NATIVE_ENGINE 0x305B +#define EGL_DEPTH_SIZE 0x3025 +#define EGL_DONT_CARE EGL_CAST(EGLint,-1) +#define EGL_DRAW 0x3059 +#define EGL_EXTENSIONS 0x3055 +#define EGL_FALSE 0 +#define EGL_GREEN_SIZE 0x3023 +#define EGL_HEIGHT 0x3056 +#define EGL_LARGEST_PBUFFER 0x3058 +#define EGL_LEVEL 0x3029 +#define EGL_MAX_PBUFFER_HEIGHT 0x302A +#define EGL_MAX_PBUFFER_PIXELS 0x302B +#define EGL_MAX_PBUFFER_WIDTH 0x302C +#define EGL_NATIVE_RENDERABLE 0x302D +#define EGL_NATIVE_VISUAL_ID 0x302E +#define EGL_NATIVE_VISUAL_TYPE 0x302F +#define EGL_NONE 0x3038 +#define EGL_NON_CONFORMANT_CONFIG 0x3051 +#define EGL_NOT_INITIALIZED 0x3001 +#define EGL_NO_CONTEXT EGL_CAST(EGLContext,0) +#define EGL_NO_DISPLAY EGL_CAST(EGLDisplay,0) +#define EGL_NO_SURFACE EGL_CAST(EGLSurface,0) +#define EGL_PBUFFER_BIT 0x0001 +#define EGL_PIXMAP_BIT 0x0002 +#define EGL_READ 0x305A +#define EGL_RED_SIZE 0x3024 +#define EGL_SAMPLES 0x3031 +#define EGL_SAMPLE_BUFFERS 0x3032 +#define EGL_SLOW_CONFIG 0x3050 +#define EGL_STENCIL_SIZE 0x3026 +#define EGL_SUCCESS 0x3000 +#define EGL_SURFACE_TYPE 0x3033 +#define EGL_TRANSPARENT_BLUE_VALUE 0x3035 +#define EGL_TRANSPARENT_GREEN_VALUE 0x3036 +#define EGL_TRANSPARENT_RED_VALUE 0x3037 +#define EGL_TRANSPARENT_RGB 0x3052 +#define EGL_TRANSPARENT_TYPE 0x3034 +#define EGL_TRUE 1 +#define EGL_VENDOR 0x3053 +#define EGL_VERSION 0x3054 +#define EGL_WIDTH 0x3057 +#define EGL_WINDOW_BIT 0x0004 + + +#ifndef __khrplatform_h_ +#define __khrplatform_h_ + +/* +** Copyright (c) 2008-2018 The Khronos Group Inc. +** +** Permission is hereby granted, free of charge, to any person obtaining a +** copy of this software and/or associated documentation files (the +** "Materials"), to deal in the Materials without restriction, including +** without limitation the rights to use, copy, modify, merge, publish, +** distribute, sublicense, and/or sell copies of the Materials, and to +** permit persons to whom the Materials are furnished to do so, subject to +** the following conditions: +** +** The above copyright notice and this permission notice shall be included +** in all copies or substantial portions of the Materials. +** +** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. +*/ + +/* Khronos platform-specific types and definitions. + * + * The master copy of khrplatform.h is maintained in the Khronos EGL + * Registry repository at https://github.com/KhronosGroup/EGL-Registry + * The last semantic modification to khrplatform.h was at commit ID: + * 67a3e0864c2d75ea5287b9f3d2eb74a745936692 + * + * Adopters may modify this file to suit their platform. Adopters are + * encouraged to submit platform specific modifications to the Khronos + * group so that they can be included in future versions of this file. + * Please submit changes by filing pull requests or issues on + * the EGL Registry repository linked above. + * + * + * See the Implementer's Guidelines for information about where this file + * should be located on your system and for more details of its use: + * http://www.khronos.org/registry/implementers_guide.pdf + * + * This file should be included as + * #include + * by Khronos client API header files that use its types and defines. + * + * The types in khrplatform.h should only be used to define API-specific types. + * + * Types defined in khrplatform.h: + * khronos_int8_t signed 8 bit + * khronos_uint8_t unsigned 8 bit + * khronos_int16_t signed 16 bit + * khronos_uint16_t unsigned 16 bit + * khronos_int32_t signed 32 bit + * khronos_uint32_t unsigned 32 bit + * khronos_int64_t signed 64 bit + * khronos_uint64_t unsigned 64 bit + * khronos_intptr_t signed same number of bits as a pointer + * khronos_uintptr_t unsigned same number of bits as a pointer + * khronos_ssize_t signed size + * khronos_usize_t unsigned size + * khronos_float_t signed 32 bit floating point + * khronos_time_ns_t unsigned 64 bit time in nanoseconds + * khronos_utime_nanoseconds_t unsigned time interval or absolute time in + * nanoseconds + * khronos_stime_nanoseconds_t signed time interval in nanoseconds + * khronos_boolean_enum_t enumerated boolean type. This should + * only be used as a base type when a client API's boolean type is + * an enum. Client APIs which use an integer or other type for + * booleans cannot use this as the base type for their boolean. + * + * Tokens defined in khrplatform.h: + * + * KHRONOS_FALSE, KHRONOS_TRUE Enumerated boolean false/true values. + * + * KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0. + * KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0. + * + * Calling convention macros defined in this file: + * KHRONOS_APICALL + * KHRONOS_GLAD_API_PTR + * KHRONOS_APIATTRIBUTES + * + * These may be used in function prototypes as: + * + * KHRONOS_APICALL void KHRONOS_GLAD_API_PTR funcname( + * int arg1, + * int arg2) KHRONOS_APIATTRIBUTES; + */ + +#if defined(__SCITECH_SNAP__) && !defined(KHRONOS_STATIC) +# define KHRONOS_STATIC 1 +#endif + +/*------------------------------------------------------------------------- + * Definition of KHRONOS_APICALL + *------------------------------------------------------------------------- + * This precedes the return type of the function in the function prototype. + */ +#if defined(KHRONOS_STATIC) + /* If the preprocessor constant KHRONOS_STATIC is defined, make the + * header compatible with static linking. */ +# define KHRONOS_APICALL +#elif defined(_WIN32) +# define KHRONOS_APICALL __declspec(dllimport) +#elif defined (__SYMBIAN32__) +# define KHRONOS_APICALL IMPORT_C +#elif defined(__ANDROID__) +# define KHRONOS_APICALL __attribute__((visibility("default"))) +#else +# define KHRONOS_APICALL +#endif + +/*------------------------------------------------------------------------- + * Definition of KHRONOS_GLAD_API_PTR + *------------------------------------------------------------------------- + * This follows the return type of the function and precedes the function + * name in the function prototype. + */ +#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__) + /* Win32 but not WinCE */ +# define KHRONOS_GLAD_API_PTR __stdcall +#else +# define KHRONOS_GLAD_API_PTR +#endif + +/*------------------------------------------------------------------------- + * Definition of KHRONOS_APIATTRIBUTES + *------------------------------------------------------------------------- + * This follows the closing parenthesis of the function prototype arguments. + */ +#if defined (__ARMCC_2__) +#define KHRONOS_APIATTRIBUTES __softfp +#else +#define KHRONOS_APIATTRIBUTES +#endif + +/*------------------------------------------------------------------------- + * basic type definitions + *-----------------------------------------------------------------------*/ +#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__) + + +/* + * Using + */ +#include +typedef int32_t khronos_int32_t; +typedef uint32_t khronos_uint32_t; +typedef int64_t khronos_int64_t; +typedef uint64_t khronos_uint64_t; +#define KHRONOS_SUPPORT_INT64 1 +#define KHRONOS_SUPPORT_FLOAT 1 +/* + * To support platform where unsigned long cannot be used interchangeably with + * inptr_t (e.g. CHERI-extended ISAs), we can use the stdint.h intptr_t. + * Ideally, we could just use (u)intptr_t everywhere, but this could result in + * ABI breakage if khronos_uintptr_t is changed from unsigned long to + * unsigned long long or similar (this results in different C++ name mangling). + * To avoid changes for existing platforms, we restrict usage of intptr_t to + * platforms where the size of a pointer is larger than the size of long. + */ +#if defined(__SIZEOF_LONG__) && defined(__SIZEOF_POINTER__) +#if __SIZEOF_POINTER__ > __SIZEOF_LONG__ +#define KHRONOS_USE_INTPTR_T +#endif +#endif + +#elif defined(__VMS ) || defined(__sgi) + +/* + * Using + */ +#include +typedef int32_t khronos_int32_t; +typedef uint32_t khronos_uint32_t; +typedef int64_t khronos_int64_t; +typedef uint64_t khronos_uint64_t; +#define KHRONOS_SUPPORT_INT64 1 +#define KHRONOS_SUPPORT_FLOAT 1 + +#elif defined(_WIN32) && !defined(__SCITECH_SNAP__) + +/* + * Win32 + */ +typedef __int32 khronos_int32_t; +typedef unsigned __int32 khronos_uint32_t; +typedef __int64 khronos_int64_t; +typedef unsigned __int64 khronos_uint64_t; +#define KHRONOS_SUPPORT_INT64 1 +#define KHRONOS_SUPPORT_FLOAT 1 + +#elif defined(__sun__) || defined(__digital__) + +/* + * Sun or Digital + */ +typedef int khronos_int32_t; +typedef unsigned int khronos_uint32_t; +#if defined(__arch64__) || defined(_LP64) +typedef long int khronos_int64_t; +typedef unsigned long int khronos_uint64_t; +#else +typedef long long int khronos_int64_t; +typedef unsigned long long int khronos_uint64_t; +#endif /* __arch64__ */ +#define KHRONOS_SUPPORT_INT64 1 +#define KHRONOS_SUPPORT_FLOAT 1 + +#elif 0 + +/* + * Hypothetical platform with no float or int64 support + */ +typedef int khronos_int32_t; +typedef unsigned int khronos_uint32_t; +#define KHRONOS_SUPPORT_INT64 0 +#define KHRONOS_SUPPORT_FLOAT 0 + +#else + +/* + * Generic fallback + */ +#include +typedef int32_t khronos_int32_t; +typedef uint32_t khronos_uint32_t; +typedef int64_t khronos_int64_t; +typedef uint64_t khronos_uint64_t; +#define KHRONOS_SUPPORT_INT64 1 +#define KHRONOS_SUPPORT_FLOAT 1 + +#endif + + +/* + * Types that are (so far) the same on all platforms + */ +typedef signed char khronos_int8_t; +typedef unsigned char khronos_uint8_t; +typedef signed short int khronos_int16_t; +typedef unsigned short int khronos_uint16_t; + +/* + * Types that differ between LLP64 and LP64 architectures - in LLP64, + * pointers are 64 bits, but 'long' is still 32 bits. Win64 appears + * to be the only LLP64 architecture in current use. + */ +#ifdef KHRONOS_USE_INTPTR_T +typedef intptr_t khronos_intptr_t; +typedef uintptr_t khronos_uintptr_t; +#elif defined(_WIN64) +typedef signed long long int khronos_intptr_t; +typedef unsigned long long int khronos_uintptr_t; +#else +typedef signed long int khronos_intptr_t; +typedef unsigned long int khronos_uintptr_t; +#endif + +#if defined(_WIN64) +typedef signed long long int khronos_ssize_t; +typedef unsigned long long int khronos_usize_t; +#else +typedef signed long int khronos_ssize_t; +typedef unsigned long int khronos_usize_t; +#endif + +#if KHRONOS_SUPPORT_FLOAT +/* + * Float type + */ +typedef float khronos_float_t; +#endif + +#if KHRONOS_SUPPORT_INT64 +/* Time types + * + * These types can be used to represent a time interval in nanoseconds or + * an absolute Unadjusted System Time. Unadjusted System Time is the number + * of nanoseconds since some arbitrary system event (e.g. since the last + * time the system booted). The Unadjusted System Time is an unsigned + * 64 bit value that wraps back to 0 every 584 years. Time intervals + * may be either signed or unsigned. + */ +typedef khronos_uint64_t khronos_utime_nanoseconds_t; +typedef khronos_int64_t khronos_stime_nanoseconds_t; +#endif + +/* + * Dummy value used to pad enum types to 32 bits. + */ +#ifndef KHRONOS_MAX_ENUM +#define KHRONOS_MAX_ENUM 0x7FFFFFFF +#endif + +/* + * Enumerated boolean type + * + * Values other than zero should be considered to be true. Therefore + * comparisons should not be made against KHRONOS_TRUE. + */ +typedef enum { + KHRONOS_FALSE = 0, + KHRONOS_TRUE = 1, + KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM +} khronos_boolean_enum_t; + +#endif /* __khrplatform_h_ */ +#ifndef __eglplatform_h_ +#define __eglplatform_h_ + +/* +** Copyright 2007-2020 The Khronos Group Inc. +** SPDX-License-Identifier: Apache-2.0 +*/ + +/* Platform-specific types and definitions for egl.h + * + * Adopters may modify khrplatform.h and this file to suit their platform. + * You are encouraged to submit all modifications to the Khronos group so that + * they can be included in future versions of this file. Please submit changes + * by filing an issue or pull request on the public Khronos EGL Registry, at + * https://www.github.com/KhronosGroup/EGL-Registry/ + */ + +/* */ + +/* Macros used in EGL function prototype declarations. + * + * EGL functions should be prototyped as: + * + * EGLAPI return-type EGLGLAD_API_PTR eglFunction(arguments); + * typedef return-type (EXPGLAD_API_PTRP PFNEGLFUNCTIONPROC) (arguments); + * + * KHRONOS_APICALL and KHRONOS_GLAD_API_PTR are defined in KHR/khrplatform.h + */ + +#ifndef EGLAPI +#define EGLAPI KHRONOS_APICALL +#endif + +#ifndef EGLGLAD_API_PTR +#define EGLGLAD_API_PTR KHRONOS_GLAD_API_PTR +#endif +#define EGLGLAD_API_PTRP EGLGLAD_API_PTR* + +/* The types NativeDisplayType, NativeWindowType, and NativePixmapType + * are aliases of window-system-dependent types, such as X Display * or + * Windows Device Context. They must be defined in platform-specific + * code below. The EGL-prefixed versions of Native*Type are the same + * types, renamed in EGL 1.3 so all types in the API start with "EGL". + * + * Khronos STRONGLY RECOMMENDS that you use the default definitions + * provided below, since these changes affect both binary and source + * portability of applications using EGL running on different EGL + * implementations. + */ + +#if defined(EGL_NO_PLATFORM_SPECIFIC_TYPES) + +typedef void *EGLNativeDisplayType; +typedef void *EGLNativePixmapType; +typedef void *EGLNativeWindowType; + +#elif defined(_WIN32) || defined(__VC32__) && !defined(__CYGWIN__) && !defined(__SCITECH_SNAP__) /* Win32 and WinCE */ +#ifndef WIN32_LEAN_AND_MEAN +#define WIN32_LEAN_AND_MEAN 1 +#endif +#include + +typedef HDC EGLNativeDisplayType; +typedef HBITMAP EGLNativePixmapType; +typedef HWND EGLNativeWindowType; + +#elif defined(__EMSCRIPTEN__) + +typedef int EGLNativeDisplayType; +typedef int EGLNativePixmapType; +typedef int EGLNativeWindowType; + +#elif defined(__WINSCW__) || defined(__SYMBIAN32__) /* Symbian */ + +typedef int EGLNativeDisplayType; +typedef void *EGLNativePixmapType; +typedef void *EGLNativeWindowType; + +#elif defined(WL_EGL_PLATFORM) + +typedef struct wl_display *EGLNativeDisplayType; +typedef struct wl_egl_pixmap *EGLNativePixmapType; +typedef struct wl_egl_window *EGLNativeWindowType; + +#elif defined(__GBM__) + +typedef struct gbm_device *EGLNativeDisplayType; +typedef struct gbm_bo *EGLNativePixmapType; +typedef void *EGLNativeWindowType; + +#elif defined(__ANDROID__) || defined(ANDROID) + +struct ANativeWindow; +struct egl_native_pixmap_t; + +typedef void* EGLNativeDisplayType; +typedef struct egl_native_pixmap_t* EGLNativePixmapType; +typedef struct ANativeWindow* EGLNativeWindowType; + +#elif defined(USE_OZONE) + +typedef intptr_t EGLNativeDisplayType; +typedef intptr_t EGLNativePixmapType; +typedef intptr_t EGLNativeWindowType; + +#elif defined(USE_X11) + +/* X11 (tentative) */ +#include +#include + +typedef Display *EGLNativeDisplayType; +typedef Pixmap EGLNativePixmapType; +typedef Window EGLNativeWindowType; + +#elif defined(__unix__) + +typedef void *EGLNativeDisplayType; +typedef khronos_uintptr_t EGLNativePixmapType; +typedef khronos_uintptr_t EGLNativeWindowType; + +#elif defined(__APPLE__) + +typedef int EGLNativeDisplayType; +typedef void *EGLNativePixmapType; +typedef void *EGLNativeWindowType; + +#elif defined(__HAIKU__) + +#include + +typedef void *EGLNativeDisplayType; +typedef khronos_uintptr_t EGLNativePixmapType; +typedef khronos_uintptr_t EGLNativeWindowType; + +#elif defined(__Fuchsia__) + +typedef void *EGLNativeDisplayType; +typedef khronos_uintptr_t EGLNativePixmapType; +typedef khronos_uintptr_t EGLNativeWindowType; + +#else +#error "Platform not recognized" +#endif + +/* EGL 1.2 types, renamed for consistency in EGL 1.3 */ +typedef EGLNativeDisplayType NativeDisplayType; +typedef EGLNativePixmapType NativePixmapType; +typedef EGLNativeWindowType NativeWindowType; + + +/* Define EGLint. This must be a signed integral type large enough to contain + * all legal attribute names and values passed into and out of EGL, whether + * their type is boolean, bitmask, enumerant (symbolic constant), integer, + * handle, or other. While in general a 32-bit integer will suffice, if + * handles are 64 bit types, then EGLint should be defined as a signed 64-bit + * integer type. + */ +typedef khronos_int32_t EGLint; + + +/* C++ / C typecast macros for special EGL handle values */ +#if defined(__cplusplus) +#define EGL_CAST(type, value) (static_cast(value)) +#else +#define EGL_CAST(type, value) ((type) (value)) +#endif + +#endif /* __eglplatform_h */ + + + + + + + + + + + +struct AHardwareBuffer; +struct wl_buffer; +struct wl_display; +struct wl_resource; + +typedef unsigned int EGLBoolean; +typedef unsigned int EGLenum; +typedef intptr_t EGLAttribKHR; +typedef intptr_t EGLAttrib; +typedef void *EGLClientBuffer; +typedef void *EGLConfig; +typedef void *EGLContext; +typedef void *EGLDeviceEXT; +typedef void *EGLDisplay; +typedef void *EGLImage; +typedef void *EGLImageKHR; +typedef void *EGLLabelKHR; +typedef void *EGLObjectKHR; +typedef void *EGLOutputLayerEXT; +typedef void *EGLOutputPortEXT; +typedef void *EGLStreamKHR; +typedef void *EGLSurface; +typedef void *EGLSync; +typedef void *EGLSyncKHR; +typedef void *EGLSyncNV; +typedef void (*__eglMustCastToProperFunctionPointerType)(void); +typedef khronos_utime_nanoseconds_t EGLTimeKHR; +typedef khronos_utime_nanoseconds_t EGLTime; +typedef khronos_utime_nanoseconds_t EGLTimeNV; +typedef khronos_utime_nanoseconds_t EGLuint64NV; +typedef khronos_uint64_t EGLuint64KHR; +typedef khronos_stime_nanoseconds_t EGLnsecsANDROID; +typedef int EGLNativeFileDescriptorKHR; +typedef khronos_ssize_t EGLsizeiANDROID; +typedef void (*EGLSetBlobFuncANDROID) (const void *key, EGLsizeiANDROID keySize, const void *value, EGLsizeiANDROID valueSize); +typedef EGLsizeiANDROID (*EGLGetBlobFuncANDROID) (const void *key, EGLsizeiANDROID keySize, void *value, EGLsizeiANDROID valueSize); +struct EGLClientPixmapHI { + void *pData; + EGLint iWidth; + EGLint iHeight; + EGLint iStride; +}; +typedef void (GLAD_API_PTR *EGLDEBUGPROCKHR)(EGLenum error,const char *command,EGLint messageType,EGLLabelKHR threadLabel,EGLLabelKHR objectLabel,const char* message); +#define PFNEGLBINDWAYLANDDISPLAYWL PFNEGLBINDWAYLANDDISPLAYWLPROC +#define PFNEGLUNBINDWAYLANDDISPLAYWL PFNEGLUNBINDWAYLANDDISPLAYWLPROC +#define PFNEGLQUERYWAYLANDBUFFERWL PFNEGLQUERYWAYLANDBUFFERWLPROC +#define PFNEGLCREATEWAYLANDBUFFERFROMIMAGEWL PFNEGLCREATEWAYLANDBUFFERFROMIMAGEWLPROC + + +#define EGL_VERSION_1_0 1 +GLAD_API_CALL int GLAD_EGL_VERSION_1_0; + + +typedef EGLBoolean (GLAD_API_PTR *PFNEGLCHOOSECONFIGPROC)(EGLDisplay dpy, const EGLint * attrib_list, EGLConfig * configs, EGLint config_size, EGLint * num_config); +typedef EGLBoolean (GLAD_API_PTR *PFNEGLCOPYBUFFERSPROC)(EGLDisplay dpy, EGLSurface surface, EGLNativePixmapType target); +typedef EGLContext (GLAD_API_PTR *PFNEGLCREATECONTEXTPROC)(EGLDisplay dpy, EGLConfig config, EGLContext share_context, const EGLint * attrib_list); +typedef EGLSurface (GLAD_API_PTR *PFNEGLCREATEPBUFFERSURFACEPROC)(EGLDisplay dpy, EGLConfig config, const EGLint * attrib_list); +typedef EGLSurface (GLAD_API_PTR *PFNEGLCREATEPIXMAPSURFACEPROC)(EGLDisplay dpy, EGLConfig config, EGLNativePixmapType pixmap, const EGLint * attrib_list); +typedef EGLSurface (GLAD_API_PTR *PFNEGLCREATEWINDOWSURFACEPROC)(EGLDisplay dpy, EGLConfig config, EGLNativeWindowType win, const EGLint * attrib_list); +typedef EGLBoolean (GLAD_API_PTR *PFNEGLDESTROYCONTEXTPROC)(EGLDisplay dpy, EGLContext ctx); +typedef EGLBoolean (GLAD_API_PTR *PFNEGLDESTROYSURFACEPROC)(EGLDisplay dpy, EGLSurface surface); +typedef EGLBoolean (GLAD_API_PTR *PFNEGLGETCONFIGATTRIBPROC)(EGLDisplay dpy, EGLConfig config, EGLint attribute, EGLint * value); +typedef EGLBoolean (GLAD_API_PTR *PFNEGLGETCONFIGSPROC)(EGLDisplay dpy, EGLConfig * configs, EGLint config_size, EGLint * num_config); +typedef EGLDisplay (GLAD_API_PTR *PFNEGLGETCURRENTDISPLAYPROC)(void); +typedef EGLSurface (GLAD_API_PTR *PFNEGLGETCURRENTSURFACEPROC)(EGLint readdraw); +typedef EGLDisplay (GLAD_API_PTR *PFNEGLGETDISPLAYPROC)(EGLNativeDisplayType display_id); +typedef EGLint (GLAD_API_PTR *PFNEGLGETERRORPROC)(void); +typedef __eglMustCastToProperFunctionPointerType (GLAD_API_PTR *PFNEGLGETPROCADDRESSPROC)(const char * procname); +typedef EGLBoolean (GLAD_API_PTR *PFNEGLINITIALIZEPROC)(EGLDisplay dpy, EGLint * major, EGLint * minor); +typedef EGLBoolean (GLAD_API_PTR *PFNEGLMAKECURRENTPROC)(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx); +typedef EGLBoolean (GLAD_API_PTR *PFNEGLQUERYCONTEXTPROC)(EGLDisplay dpy, EGLContext ctx, EGLint attribute, EGLint * value); +typedef const char * (GLAD_API_PTR *PFNEGLQUERYSTRINGPROC)(EGLDisplay dpy, EGLint name); +typedef EGLBoolean (GLAD_API_PTR *PFNEGLQUERYSURFACEPROC)(EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint * value); +typedef EGLBoolean (GLAD_API_PTR *PFNEGLSWAPBUFFERSPROC)(EGLDisplay dpy, EGLSurface surface); +typedef EGLBoolean (GLAD_API_PTR *PFNEGLTERMINATEPROC)(EGLDisplay dpy); +typedef EGLBoolean (GLAD_API_PTR *PFNEGLWAITGLPROC)(void); +typedef EGLBoolean (GLAD_API_PTR *PFNEGLWAITNATIVEPROC)(EGLint engine); + +GLAD_API_CALL PFNEGLCHOOSECONFIGPROC glad_eglChooseConfig; +#define eglChooseConfig glad_eglChooseConfig +GLAD_API_CALL PFNEGLCOPYBUFFERSPROC glad_eglCopyBuffers; +#define eglCopyBuffers glad_eglCopyBuffers +GLAD_API_CALL PFNEGLCREATECONTEXTPROC glad_eglCreateContext; +#define eglCreateContext glad_eglCreateContext +GLAD_API_CALL PFNEGLCREATEPBUFFERSURFACEPROC glad_eglCreatePbufferSurface; +#define eglCreatePbufferSurface glad_eglCreatePbufferSurface +GLAD_API_CALL PFNEGLCREATEPIXMAPSURFACEPROC glad_eglCreatePixmapSurface; +#define eglCreatePixmapSurface glad_eglCreatePixmapSurface +GLAD_API_CALL PFNEGLCREATEWINDOWSURFACEPROC glad_eglCreateWindowSurface; +#define eglCreateWindowSurface glad_eglCreateWindowSurface +GLAD_API_CALL PFNEGLDESTROYCONTEXTPROC glad_eglDestroyContext; +#define eglDestroyContext glad_eglDestroyContext +GLAD_API_CALL PFNEGLDESTROYSURFACEPROC glad_eglDestroySurface; +#define eglDestroySurface glad_eglDestroySurface +GLAD_API_CALL PFNEGLGETCONFIGATTRIBPROC glad_eglGetConfigAttrib; +#define eglGetConfigAttrib glad_eglGetConfigAttrib +GLAD_API_CALL PFNEGLGETCONFIGSPROC glad_eglGetConfigs; +#define eglGetConfigs glad_eglGetConfigs +GLAD_API_CALL PFNEGLGETCURRENTDISPLAYPROC glad_eglGetCurrentDisplay; +#define eglGetCurrentDisplay glad_eglGetCurrentDisplay +GLAD_API_CALL PFNEGLGETCURRENTSURFACEPROC glad_eglGetCurrentSurface; +#define eglGetCurrentSurface glad_eglGetCurrentSurface +GLAD_API_CALL PFNEGLGETDISPLAYPROC glad_eglGetDisplay; +#define eglGetDisplay glad_eglGetDisplay +GLAD_API_CALL PFNEGLGETERRORPROC glad_eglGetError; +#define eglGetError glad_eglGetError +GLAD_API_CALL PFNEGLGETPROCADDRESSPROC glad_eglGetProcAddress; +#define eglGetProcAddress glad_eglGetProcAddress +GLAD_API_CALL PFNEGLINITIALIZEPROC glad_eglInitialize; +#define eglInitialize glad_eglInitialize +GLAD_API_CALL PFNEGLMAKECURRENTPROC glad_eglMakeCurrent; +#define eglMakeCurrent glad_eglMakeCurrent +GLAD_API_CALL PFNEGLQUERYCONTEXTPROC glad_eglQueryContext; +#define eglQueryContext glad_eglQueryContext +GLAD_API_CALL PFNEGLQUERYSTRINGPROC glad_eglQueryString; +#define eglQueryString glad_eglQueryString +GLAD_API_CALL PFNEGLQUERYSURFACEPROC glad_eglQuerySurface; +#define eglQuerySurface glad_eglQuerySurface +GLAD_API_CALL PFNEGLSWAPBUFFERSPROC glad_eglSwapBuffers; +#define eglSwapBuffers glad_eglSwapBuffers +GLAD_API_CALL PFNEGLTERMINATEPROC glad_eglTerminate; +#define eglTerminate glad_eglTerminate +GLAD_API_CALL PFNEGLWAITGLPROC glad_eglWaitGL; +#define eglWaitGL glad_eglWaitGL +GLAD_API_CALL PFNEGLWAITNATIVEPROC glad_eglWaitNative; +#define eglWaitNative glad_eglWaitNative + + + + + +GLAD_API_CALL int gladLoadEGLUserPtr(EGLDisplay display, GLADuserptrloadfunc load, void *userptr); +GLAD_API_CALL int gladLoadEGL(EGLDisplay display, GLADloadfunc load); + + +#ifdef __cplusplus +} +#endif +#endif + +/* Source */ +#ifdef GLAD_EGL_IMPLEMENTATION +/** + * SPDX-License-Identifier: (WTFPL OR CC0-1.0) AND Apache-2.0 + */ +#include +#include +#include + +#ifndef GLAD_IMPL_UTIL_C_ +#define GLAD_IMPL_UTIL_C_ + +#ifdef _MSC_VER +#define GLAD_IMPL_UTIL_SSCANF sscanf_s +#else +#define GLAD_IMPL_UTIL_SSCANF sscanf +#endif + +#endif /* GLAD_IMPL_UTIL_C_ */ + +#ifdef __cplusplus +extern "C" { +#endif + + + +int GLAD_EGL_VERSION_1_0 = 0; + + + +PFNEGLCHOOSECONFIGPROC glad_eglChooseConfig = NULL; +PFNEGLCOPYBUFFERSPROC glad_eglCopyBuffers = NULL; +PFNEGLCREATECONTEXTPROC glad_eglCreateContext = NULL; +PFNEGLCREATEPBUFFERSURFACEPROC glad_eglCreatePbufferSurface = NULL; +PFNEGLCREATEPIXMAPSURFACEPROC glad_eglCreatePixmapSurface = NULL; +PFNEGLCREATEWINDOWSURFACEPROC glad_eglCreateWindowSurface = NULL; +PFNEGLDESTROYCONTEXTPROC glad_eglDestroyContext = NULL; +PFNEGLDESTROYSURFACEPROC glad_eglDestroySurface = NULL; +PFNEGLGETCONFIGATTRIBPROC glad_eglGetConfigAttrib = NULL; +PFNEGLGETCONFIGSPROC glad_eglGetConfigs = NULL; +PFNEGLGETCURRENTDISPLAYPROC glad_eglGetCurrentDisplay = NULL; +PFNEGLGETCURRENTSURFACEPROC glad_eglGetCurrentSurface = NULL; +PFNEGLGETDISPLAYPROC glad_eglGetDisplay = NULL; +PFNEGLGETERRORPROC glad_eglGetError = NULL; +PFNEGLGETPROCADDRESSPROC glad_eglGetProcAddress = NULL; +PFNEGLINITIALIZEPROC glad_eglInitialize = NULL; +PFNEGLMAKECURRENTPROC glad_eglMakeCurrent = NULL; +PFNEGLQUERYCONTEXTPROC glad_eglQueryContext = NULL; +PFNEGLQUERYSTRINGPROC glad_eglQueryString = NULL; +PFNEGLQUERYSURFACEPROC glad_eglQuerySurface = NULL; +PFNEGLSWAPBUFFERSPROC glad_eglSwapBuffers = NULL; +PFNEGLTERMINATEPROC glad_eglTerminate = NULL; +PFNEGLWAITGLPROC glad_eglWaitGL = NULL; +PFNEGLWAITNATIVEPROC glad_eglWaitNative = NULL; + + +static void glad_egl_load_EGL_VERSION_1_0( GLADuserptrloadfunc load, void* userptr) { + if(!GLAD_EGL_VERSION_1_0) return; + glad_eglChooseConfig = (PFNEGLCHOOSECONFIGPROC) load(userptr, "eglChooseConfig"); + glad_eglCopyBuffers = (PFNEGLCOPYBUFFERSPROC) load(userptr, "eglCopyBuffers"); + glad_eglCreateContext = (PFNEGLCREATECONTEXTPROC) load(userptr, "eglCreateContext"); + glad_eglCreatePbufferSurface = (PFNEGLCREATEPBUFFERSURFACEPROC) load(userptr, "eglCreatePbufferSurface"); + glad_eglCreatePixmapSurface = (PFNEGLCREATEPIXMAPSURFACEPROC) load(userptr, "eglCreatePixmapSurface"); + glad_eglCreateWindowSurface = (PFNEGLCREATEWINDOWSURFACEPROC) load(userptr, "eglCreateWindowSurface"); + glad_eglDestroyContext = (PFNEGLDESTROYCONTEXTPROC) load(userptr, "eglDestroyContext"); + glad_eglDestroySurface = (PFNEGLDESTROYSURFACEPROC) load(userptr, "eglDestroySurface"); + glad_eglGetConfigAttrib = (PFNEGLGETCONFIGATTRIBPROC) load(userptr, "eglGetConfigAttrib"); + glad_eglGetConfigs = (PFNEGLGETCONFIGSPROC) load(userptr, "eglGetConfigs"); + glad_eglGetCurrentDisplay = (PFNEGLGETCURRENTDISPLAYPROC) load(userptr, "eglGetCurrentDisplay"); + glad_eglGetCurrentSurface = (PFNEGLGETCURRENTSURFACEPROC) load(userptr, "eglGetCurrentSurface"); + glad_eglGetDisplay = (PFNEGLGETDISPLAYPROC) load(userptr, "eglGetDisplay"); + glad_eglGetError = (PFNEGLGETERRORPROC) load(userptr, "eglGetError"); + glad_eglGetProcAddress = (PFNEGLGETPROCADDRESSPROC) load(userptr, "eglGetProcAddress"); + glad_eglInitialize = (PFNEGLINITIALIZEPROC) load(userptr, "eglInitialize"); + glad_eglMakeCurrent = (PFNEGLMAKECURRENTPROC) load(userptr, "eglMakeCurrent"); + glad_eglQueryContext = (PFNEGLQUERYCONTEXTPROC) load(userptr, "eglQueryContext"); + glad_eglQueryString = (PFNEGLQUERYSTRINGPROC) load(userptr, "eglQueryString"); + glad_eglQuerySurface = (PFNEGLQUERYSURFACEPROC) load(userptr, "eglQuerySurface"); + glad_eglSwapBuffers = (PFNEGLSWAPBUFFERSPROC) load(userptr, "eglSwapBuffers"); + glad_eglTerminate = (PFNEGLTERMINATEPROC) load(userptr, "eglTerminate"); + glad_eglWaitGL = (PFNEGLWAITGLPROC) load(userptr, "eglWaitGL"); + glad_eglWaitNative = (PFNEGLWAITNATIVEPROC) load(userptr, "eglWaitNative"); +} + + + +static int glad_egl_get_extensions(EGLDisplay display, const char **extensions) { + *extensions = eglQueryString(display, EGL_EXTENSIONS); + + return extensions != NULL; +} + +static int glad_egl_has_extension(const char *extensions, const char *ext) { + const char *loc; + const char *terminator; + if(extensions == NULL) { + return 0; + } + while(1) { + loc = strstr(extensions, ext); + if(loc == NULL) { + return 0; + } + terminator = loc + strlen(ext); + if((loc == extensions || *(loc - 1) == ' ') && + (*terminator == ' ' || *terminator == '\0')) { + return 1; + } + extensions = terminator; + } +} + +static GLADapiproc glad_egl_get_proc_from_userptr(void *userptr, const char *name) { + return (GLAD_GNUC_EXTENSION (GLADapiproc (*)(const char *name)) userptr)(name); +} + +static int glad_egl_find_extensions_egl(EGLDisplay display) { + const char *extensions; + if (!glad_egl_get_extensions(display, &extensions)) return 0; + + GLAD_UNUSED(glad_egl_has_extension); + + return 1; +} + +static int glad_egl_find_core_egl(EGLDisplay display) { + int major, minor; + const char *version; + + if (display == NULL) { + display = EGL_NO_DISPLAY; /* this is usually NULL, better safe than sorry */ + } + if (display == EGL_NO_DISPLAY) { + display = eglGetCurrentDisplay(); + } +#ifdef EGL_VERSION_1_4 + if (display == EGL_NO_DISPLAY) { + display = eglGetDisplay(EGL_DEFAULT_DISPLAY); + } +#endif +#ifndef EGL_VERSION_1_5 + if (display == EGL_NO_DISPLAY) { + return 0; + } +#endif + + version = eglQueryString(display, EGL_VERSION); + (void) eglGetError(); + + if (version == NULL) { + major = 1; + minor = 0; + } else { + GLAD_IMPL_UTIL_SSCANF(version, "%d.%d", &major, &minor); + } + + GLAD_EGL_VERSION_1_0 = (major == 1 && minor >= 0) || major > 1; + + return GLAD_MAKE_VERSION(major, minor); +} + +int gladLoadEGLUserPtr(EGLDisplay display, GLADuserptrloadfunc load, void* userptr) { + int version; + eglGetDisplay = (PFNEGLGETDISPLAYPROC) load(userptr, "eglGetDisplay"); + eglGetCurrentDisplay = (PFNEGLGETCURRENTDISPLAYPROC) load(userptr, "eglGetCurrentDisplay"); + eglQueryString = (PFNEGLQUERYSTRINGPROC) load(userptr, "eglQueryString"); + eglGetError = (PFNEGLGETERRORPROC) load(userptr, "eglGetError"); + if (eglGetDisplay == NULL || eglGetCurrentDisplay == NULL || eglQueryString == NULL || eglGetError == NULL) return 0; + + version = glad_egl_find_core_egl(display); + if (!version) return 0; + glad_egl_load_EGL_VERSION_1_0(load, userptr); + + if (!glad_egl_find_extensions_egl(display)) return 0; + + + return version; +} + +int gladLoadEGL(EGLDisplay display, GLADloadfunc load) { + return gladLoadEGLUserPtr(display, glad_egl_get_proc_from_userptr, GLAD_GNUC_EXTENSION (void*) load); +} + + + + +#ifdef __cplusplus +} +#endif + +#endif /* GLAD_EGL_IMPLEMENTATION */ + diff --git a/dep/glad/include/glad/gles2.h b/dep/glad/include/glad/gles2.h new file mode 100644 index 0000000..4ca9158 --- /dev/null +++ b/dep/glad/include/glad/gles2.h @@ -0,0 +1,1827 @@ +/** + * Loader generated by glad 2.0.3 on Wed Jan 18 23:06:58 2023 + * + * SPDX-License-Identifier: (WTFPL OR CC0-1.0) AND Apache-2.0 + * + * Generator: C/C++ + * Specification: gl + * Extensions: 2 + * + * APIs: + * - gles2=2.0 + * + * Options: + * - ALIAS = False + * - DEBUG = False + * - HEADER_ONLY = True + * - LOADER = False + * - MX = False + * - ON_DEMAND = False + * + * Commandline: + * --api='gles2=2.0' --extensions='GL_EXT_debug_marker,GL_EXT_texture_compression_s3tc' c --header-only + * + * Online: + * http://glad.sh/#api=gles2%3D2.0&extensions=GL_EXT_debug_marker%2CGL_EXT_texture_compression_s3tc&generator=c&options=HEADER_ONLY + * + */ + +#ifndef GLAD_GLES2_H_ +#define GLAD_GLES2_H_ + +#ifdef __clang__ +#pragma clang diagnostic push +#pragma clang diagnostic ignored "-Wreserved-id-macro" +#endif +#ifdef __gl2_h_ + #error OpenGL ES 2 header already included (API: gles2), remove previous include! +#endif +#define __gl2_h_ 1 +#ifdef __gles2_gl2_h_ + #error OpenGL ES 2 header already included (API: gles2), remove previous include! +#endif +#define __gles2_gl2_h_ 1 +#ifdef __gl3_h_ + #error OpenGL ES 3 header already included (API: gles2), remove previous include! +#endif +#define __gl3_h_ 1 +#ifdef __gles2_gl3_h_ + #error OpenGL ES 3 header already included (API: gles2), remove previous include! +#endif +#define __gles2_gl3_h_ 1 +#ifdef __clang__ +#pragma clang diagnostic pop +#endif + +#define GLAD_GLES2 +#define GLAD_OPTION_GLES2_HEADER_ONLY + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef GLAD_PLATFORM_H_ +#define GLAD_PLATFORM_H_ + +#ifndef GLAD_PLATFORM_WIN32 + #if defined(_WIN32) || defined(__WIN32__) || defined(WIN32) || defined(__MINGW32__) + #define GLAD_PLATFORM_WIN32 1 + #else + #define GLAD_PLATFORM_WIN32 0 + #endif +#endif + +#ifndef GLAD_PLATFORM_APPLE + #ifdef __APPLE__ + #define GLAD_PLATFORM_APPLE 1 + #else + #define GLAD_PLATFORM_APPLE 0 + #endif +#endif + +#ifndef GLAD_PLATFORM_EMSCRIPTEN + #ifdef __EMSCRIPTEN__ + #define GLAD_PLATFORM_EMSCRIPTEN 1 + #else + #define GLAD_PLATFORM_EMSCRIPTEN 0 + #endif +#endif + +#ifndef GLAD_PLATFORM_UWP + #if defined(_MSC_VER) && !defined(GLAD_INTERNAL_HAVE_WINAPIFAMILY) + #ifdef __has_include + #if __has_include() + #define GLAD_INTERNAL_HAVE_WINAPIFAMILY 1 + #endif + #elif _MSC_VER >= 1700 && !_USING_V110_SDK71_ + #define GLAD_INTERNAL_HAVE_WINAPIFAMILY 1 + #endif + #endif + + #ifdef GLAD_INTERNAL_HAVE_WINAPIFAMILY + #include + #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) && WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP) + #define GLAD_PLATFORM_UWP 1 + #endif + #endif + + #ifndef GLAD_PLATFORM_UWP + #define GLAD_PLATFORM_UWP 0 + #endif +#endif + +#ifdef __GNUC__ + #define GLAD_GNUC_EXTENSION __extension__ +#else + #define GLAD_GNUC_EXTENSION +#endif + +#define GLAD_UNUSED(x) (void)(x) + +#ifndef GLAD_API_CALL + #if defined(GLAD_API_CALL_EXPORT) + #if GLAD_PLATFORM_WIN32 || defined(__CYGWIN__) + #if defined(GLAD_API_CALL_EXPORT_BUILD) + #if defined(__GNUC__) + #define GLAD_API_CALL __attribute__ ((dllexport)) extern + #else + #define GLAD_API_CALL __declspec(dllexport) extern + #endif + #else + #if defined(__GNUC__) + #define GLAD_API_CALL __attribute__ ((dllimport)) extern + #else + #define GLAD_API_CALL __declspec(dllimport) extern + #endif + #endif + #elif defined(__GNUC__) && defined(GLAD_API_CALL_EXPORT_BUILD) + #define GLAD_API_CALL __attribute__ ((visibility ("default"))) extern + #else + #define GLAD_API_CALL extern + #endif + #else + #define GLAD_API_CALL extern + #endif +#endif + +#ifdef APIENTRY + #define GLAD_API_PTR APIENTRY +#elif GLAD_PLATFORM_WIN32 + #define GLAD_API_PTR __stdcall +#else + #define GLAD_API_PTR +#endif + +#ifndef GLAPI +#define GLAPI GLAD_API_CALL +#endif + +#ifndef GLAPIENTRY +#define GLAPIENTRY GLAD_API_PTR +#endif + +#define GLAD_MAKE_VERSION(major, minor) (major * 10000 + minor) +#define GLAD_VERSION_MAJOR(version) (version / 10000) +#define GLAD_VERSION_MINOR(version) (version % 10000) + +#define GLAD_GENERATOR_VERSION "2.0.3" + +typedef void (*GLADapiproc)(void); + +typedef GLADapiproc (*GLADloadfunc)(const char *name); +typedef GLADapiproc (*GLADuserptrloadfunc)(void *userptr, const char *name); + +typedef void (*GLADprecallback)(const char *name, GLADapiproc apiproc, int len_args, ...); +typedef void (*GLADpostcallback)(void *ret, const char *name, GLADapiproc apiproc, int len_args, ...); + +#endif /* GLAD_PLATFORM_H_ */ + +#define GL_ACTIVE_ATTRIBUTES 0x8B89 +#define GL_ACTIVE_ATTRIBUTE_MAX_LENGTH 0x8B8A +#define GL_ACTIVE_TEXTURE 0x84E0 +#define GL_ACTIVE_UNIFORMS 0x8B86 +#define GL_ACTIVE_UNIFORM_MAX_LENGTH 0x8B87 +#define GL_ALIASED_LINE_WIDTH_RANGE 0x846E +#define GL_ALIASED_POINT_SIZE_RANGE 0x846D +#define GL_ALPHA 0x1906 +#define GL_ALPHA_BITS 0x0D55 +#define GL_ALWAYS 0x0207 +#define GL_ARRAY_BUFFER 0x8892 +#define GL_ARRAY_BUFFER_BINDING 0x8894 +#define GL_ATTACHED_SHADERS 0x8B85 +#define GL_BACK 0x0405 +#define GL_BLEND 0x0BE2 +#define GL_BLEND_COLOR 0x8005 +#define GL_BLEND_DST_ALPHA 0x80CA +#define GL_BLEND_DST_RGB 0x80C8 +#define GL_BLEND_EQUATION 0x8009 +#define GL_BLEND_EQUATION_ALPHA 0x883D +#define GL_BLEND_EQUATION_RGB 0x8009 +#define GL_BLEND_SRC_ALPHA 0x80CB +#define GL_BLEND_SRC_RGB 0x80C9 +#define GL_BLUE_BITS 0x0D54 +#define GL_BOOL 0x8B56 +#define GL_BOOL_VEC2 0x8B57 +#define GL_BOOL_VEC3 0x8B58 +#define GL_BOOL_VEC4 0x8B59 +#define GL_BUFFER_SIZE 0x8764 +#define GL_BUFFER_USAGE 0x8765 +#define GL_BYTE 0x1400 +#define GL_CCW 0x0901 +#define GL_CLAMP_TO_EDGE 0x812F +#define GL_COLOR_ATTACHMENT0 0x8CE0 +#define GL_COLOR_BUFFER_BIT 0x00004000 +#define GL_COLOR_CLEAR_VALUE 0x0C22 +#define GL_COLOR_WRITEMASK 0x0C23 +#define GL_COMPILE_STATUS 0x8B81 +#define GL_COMPRESSED_RGBA_S3TC_DXT1_EXT 0x83F1 +#define GL_COMPRESSED_RGBA_S3TC_DXT3_EXT 0x83F2 +#define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT 0x83F3 +#define GL_COMPRESSED_RGB_S3TC_DXT1_EXT 0x83F0 +#define GL_COMPRESSED_TEXTURE_FORMATS 0x86A3 +#define GL_CONSTANT_ALPHA 0x8003 +#define GL_CONSTANT_COLOR 0x8001 +#define GL_CULL_FACE 0x0B44 +#define GL_CULL_FACE_MODE 0x0B45 +#define GL_CURRENT_PROGRAM 0x8B8D +#define GL_CURRENT_VERTEX_ATTRIB 0x8626 +#define GL_CW 0x0900 +#define GL_DECR 0x1E03 +#define GL_DECR_WRAP 0x8508 +#define GL_DELETE_STATUS 0x8B80 +#define GL_DEPTH_ATTACHMENT 0x8D00 +#define GL_DEPTH_BITS 0x0D56 +#define GL_DEPTH_BUFFER_BIT 0x00000100 +#define GL_DEPTH_CLEAR_VALUE 0x0B73 +#define GL_DEPTH_COMPONENT 0x1902 +#define GL_DEPTH_COMPONENT16 0x81A5 +#define GL_DEPTH_FUNC 0x0B74 +#define GL_DEPTH_RANGE 0x0B70 +#define GL_DEPTH_TEST 0x0B71 +#define GL_DEPTH_WRITEMASK 0x0B72 +#define GL_DITHER 0x0BD0 +#define GL_DONT_CARE 0x1100 +#define GL_DST_ALPHA 0x0304 +#define GL_DST_COLOR 0x0306 +#define GL_DYNAMIC_DRAW 0x88E8 +#define GL_ELEMENT_ARRAY_BUFFER 0x8893 +#define GL_ELEMENT_ARRAY_BUFFER_BINDING 0x8895 +#define GL_EQUAL 0x0202 +#define GL_EXTENSIONS 0x1F03 +#define GL_FALSE 0 +#define GL_FASTEST 0x1101 +#define GL_FIXED 0x140C +#define GL_FLOAT 0x1406 +#define GL_FLOAT_MAT2 0x8B5A +#define GL_FLOAT_MAT3 0x8B5B +#define GL_FLOAT_MAT4 0x8B5C +#define GL_FLOAT_VEC2 0x8B50 +#define GL_FLOAT_VEC3 0x8B51 +#define GL_FLOAT_VEC4 0x8B52 +#define GL_FRAGMENT_SHADER 0x8B30 +#define GL_FRAMEBUFFER 0x8D40 +#define GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME 0x8CD1 +#define GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE 0x8CD0 +#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE 0x8CD3 +#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL 0x8CD2 +#define GL_FRAMEBUFFER_BINDING 0x8CA6 +#define GL_FRAMEBUFFER_COMPLETE 0x8CD5 +#define GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT 0x8CD6 +#define GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS 0x8CD9 +#define GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT 0x8CD7 +#define GL_FRAMEBUFFER_UNSUPPORTED 0x8CDD +#define GL_FRONT 0x0404 +#define GL_FRONT_AND_BACK 0x0408 +#define GL_FRONT_FACE 0x0B46 +#define GL_FUNC_ADD 0x8006 +#define GL_FUNC_REVERSE_SUBTRACT 0x800B +#define GL_FUNC_SUBTRACT 0x800A +#define GL_GENERATE_MIPMAP_HINT 0x8192 +#define GL_GEQUAL 0x0206 +#define GL_GREATER 0x0204 +#define GL_GREEN_BITS 0x0D53 +#define GL_HIGH_FLOAT 0x8DF2 +#define GL_HIGH_INT 0x8DF5 +#define GL_IMPLEMENTATION_COLOR_READ_FORMAT 0x8B9B +#define GL_IMPLEMENTATION_COLOR_READ_TYPE 0x8B9A +#define GL_INCR 0x1E02 +#define GL_INCR_WRAP 0x8507 +#define GL_INFO_LOG_LENGTH 0x8B84 +#define GL_INT 0x1404 +#define GL_INT_VEC2 0x8B53 +#define GL_INT_VEC3 0x8B54 +#define GL_INT_VEC4 0x8B55 +#define GL_INVALID_ENUM 0x0500 +#define GL_INVALID_FRAMEBUFFER_OPERATION 0x0506 +#define GL_INVALID_OPERATION 0x0502 +#define GL_INVALID_VALUE 0x0501 +#define GL_INVERT 0x150A +#define GL_KEEP 0x1E00 +#define GL_LEQUAL 0x0203 +#define GL_LESS 0x0201 +#define GL_LINEAR 0x2601 +#define GL_LINEAR_MIPMAP_LINEAR 0x2703 +#define GL_LINEAR_MIPMAP_NEAREST 0x2701 +#define GL_LINES 0x0001 +#define GL_LINE_LOOP 0x0002 +#define GL_LINE_STRIP 0x0003 +#define GL_LINE_WIDTH 0x0B21 +#define GL_LINK_STATUS 0x8B82 +#define GL_LOW_FLOAT 0x8DF0 +#define GL_LOW_INT 0x8DF3 +#define GL_LUMINANCE 0x1909 +#define GL_LUMINANCE_ALPHA 0x190A +#define GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS 0x8B4D +#define GL_MAX_CUBE_MAP_TEXTURE_SIZE 0x851C +#define GL_MAX_FRAGMENT_UNIFORM_VECTORS 0x8DFD +#define GL_MAX_RENDERBUFFER_SIZE 0x84E8 +#define GL_MAX_TEXTURE_IMAGE_UNITS 0x8872 +#define GL_MAX_TEXTURE_SIZE 0x0D33 +#define GL_MAX_VARYING_VECTORS 0x8DFC +#define GL_MAX_VERTEX_ATTRIBS 0x8869 +#define GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS 0x8B4C +#define GL_MAX_VERTEX_UNIFORM_VECTORS 0x8DFB +#define GL_MAX_VIEWPORT_DIMS 0x0D3A +#define GL_MEDIUM_FLOAT 0x8DF1 +#define GL_MEDIUM_INT 0x8DF4 +#define GL_MIRRORED_REPEAT 0x8370 +#define GL_NEAREST 0x2600 +#define GL_NEAREST_MIPMAP_LINEAR 0x2702 +#define GL_NEAREST_MIPMAP_NEAREST 0x2700 +#define GL_NEVER 0x0200 +#define GL_NICEST 0x1102 +#define GL_NONE 0 +#define GL_NOTEQUAL 0x0205 +#define GL_NO_ERROR 0 +#define GL_NUM_COMPRESSED_TEXTURE_FORMATS 0x86A2 +#define GL_NUM_SHADER_BINARY_FORMATS 0x8DF9 +#define GL_ONE 1 +#define GL_ONE_MINUS_CONSTANT_ALPHA 0x8004 +#define GL_ONE_MINUS_CONSTANT_COLOR 0x8002 +#define GL_ONE_MINUS_DST_ALPHA 0x0305 +#define GL_ONE_MINUS_DST_COLOR 0x0307 +#define GL_ONE_MINUS_SRC_ALPHA 0x0303 +#define GL_ONE_MINUS_SRC_COLOR 0x0301 +#define GL_OUT_OF_MEMORY 0x0505 +#define GL_PACK_ALIGNMENT 0x0D05 +#define GL_POINTS 0x0000 +#define GL_POLYGON_OFFSET_FACTOR 0x8038 +#define GL_POLYGON_OFFSET_FILL 0x8037 +#define GL_POLYGON_OFFSET_UNITS 0x2A00 +#define GL_RED_BITS 0x0D52 +#define GL_RENDERBUFFER 0x8D41 +#define GL_RENDERBUFFER_ALPHA_SIZE 0x8D53 +#define GL_RENDERBUFFER_BINDING 0x8CA7 +#define GL_RENDERBUFFER_BLUE_SIZE 0x8D52 +#define GL_RENDERBUFFER_DEPTH_SIZE 0x8D54 +#define GL_RENDERBUFFER_GREEN_SIZE 0x8D51 +#define GL_RENDERBUFFER_HEIGHT 0x8D43 +#define GL_RENDERBUFFER_INTERNAL_FORMAT 0x8D44 +#define GL_RENDERBUFFER_RED_SIZE 0x8D50 +#define GL_RENDERBUFFER_STENCIL_SIZE 0x8D55 +#define GL_RENDERBUFFER_WIDTH 0x8D42 +#define GL_RENDERER 0x1F01 +#define GL_REPEAT 0x2901 +#define GL_REPLACE 0x1E01 +#define GL_RGB 0x1907 +#define GL_RGB565 0x8D62 +#define GL_RGB5_A1 0x8057 +#define GL_RGBA 0x1908 +#define GL_RGBA4 0x8056 +#define GL_SAMPLER_2D 0x8B5E +#define GL_SAMPLER_CUBE 0x8B60 +#define GL_SAMPLES 0x80A9 +#define GL_SAMPLE_ALPHA_TO_COVERAGE 0x809E +#define GL_SAMPLE_BUFFERS 0x80A8 +#define GL_SAMPLE_COVERAGE 0x80A0 +#define GL_SAMPLE_COVERAGE_INVERT 0x80AB +#define GL_SAMPLE_COVERAGE_VALUE 0x80AA +#define GL_SCISSOR_BOX 0x0C10 +#define GL_SCISSOR_TEST 0x0C11 +#define GL_SHADER_BINARY_FORMATS 0x8DF8 +#define GL_SHADER_COMPILER 0x8DFA +#define GL_SHADER_SOURCE_LENGTH 0x8B88 +#define GL_SHADER_TYPE 0x8B4F +#define GL_SHADING_LANGUAGE_VERSION 0x8B8C +#define GL_SHORT 0x1402 +#define GL_SRC_ALPHA 0x0302 +#define GL_SRC_ALPHA_SATURATE 0x0308 +#define GL_SRC_COLOR 0x0300 +#define GL_STATIC_DRAW 0x88E4 +#define GL_STENCIL_ATTACHMENT 0x8D20 +#define GL_STENCIL_BACK_FAIL 0x8801 +#define GL_STENCIL_BACK_FUNC 0x8800 +#define GL_STENCIL_BACK_PASS_DEPTH_FAIL 0x8802 +#define GL_STENCIL_BACK_PASS_DEPTH_PASS 0x8803 +#define GL_STENCIL_BACK_REF 0x8CA3 +#define GL_STENCIL_BACK_VALUE_MASK 0x8CA4 +#define GL_STENCIL_BACK_WRITEMASK 0x8CA5 +#define GL_STENCIL_BITS 0x0D57 +#define GL_STENCIL_BUFFER_BIT 0x00000400 +#define GL_STENCIL_CLEAR_VALUE 0x0B91 +#define GL_STENCIL_FAIL 0x0B94 +#define GL_STENCIL_FUNC 0x0B92 +#define GL_STENCIL_INDEX8 0x8D48 +#define GL_STENCIL_PASS_DEPTH_FAIL 0x0B95 +#define GL_STENCIL_PASS_DEPTH_PASS 0x0B96 +#define GL_STENCIL_REF 0x0B97 +#define GL_STENCIL_TEST 0x0B90 +#define GL_STENCIL_VALUE_MASK 0x0B93 +#define GL_STENCIL_WRITEMASK 0x0B98 +#define GL_STREAM_DRAW 0x88E0 +#define GL_SUBPIXEL_BITS 0x0D50 +#define GL_TEXTURE 0x1702 +#define GL_TEXTURE0 0x84C0 +#define GL_TEXTURE1 0x84C1 +#define GL_TEXTURE10 0x84CA +#define GL_TEXTURE11 0x84CB +#define GL_TEXTURE12 0x84CC +#define GL_TEXTURE13 0x84CD +#define GL_TEXTURE14 0x84CE +#define GL_TEXTURE15 0x84CF +#define GL_TEXTURE16 0x84D0 +#define GL_TEXTURE17 0x84D1 +#define GL_TEXTURE18 0x84D2 +#define GL_TEXTURE19 0x84D3 +#define GL_TEXTURE2 0x84C2 +#define GL_TEXTURE20 0x84D4 +#define GL_TEXTURE21 0x84D5 +#define GL_TEXTURE22 0x84D6 +#define GL_TEXTURE23 0x84D7 +#define GL_TEXTURE24 0x84D8 +#define GL_TEXTURE25 0x84D9 +#define GL_TEXTURE26 0x84DA +#define GL_TEXTURE27 0x84DB +#define GL_TEXTURE28 0x84DC +#define GL_TEXTURE29 0x84DD +#define GL_TEXTURE3 0x84C3 +#define GL_TEXTURE30 0x84DE +#define GL_TEXTURE31 0x84DF +#define GL_TEXTURE4 0x84C4 +#define GL_TEXTURE5 0x84C5 +#define GL_TEXTURE6 0x84C6 +#define GL_TEXTURE7 0x84C7 +#define GL_TEXTURE8 0x84C8 +#define GL_TEXTURE9 0x84C9 +#define GL_TEXTURE_2D 0x0DE1 +#define GL_TEXTURE_BINDING_2D 0x8069 +#define GL_TEXTURE_BINDING_CUBE_MAP 0x8514 +#define GL_TEXTURE_CUBE_MAP 0x8513 +#define GL_TEXTURE_CUBE_MAP_NEGATIVE_X 0x8516 +#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y 0x8518 +#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z 0x851A +#define GL_TEXTURE_CUBE_MAP_POSITIVE_X 0x8515 +#define GL_TEXTURE_CUBE_MAP_POSITIVE_Y 0x8517 +#define GL_TEXTURE_CUBE_MAP_POSITIVE_Z 0x8519 +#define GL_TEXTURE_MAG_FILTER 0x2800 +#define GL_TEXTURE_MIN_FILTER 0x2801 +#define GL_TEXTURE_WRAP_S 0x2802 +#define GL_TEXTURE_WRAP_T 0x2803 +#define GL_TRIANGLES 0x0004 +#define GL_TRIANGLE_FAN 0x0006 +#define GL_TRIANGLE_STRIP 0x0005 +#define GL_TRUE 1 +#define GL_UNPACK_ALIGNMENT 0x0CF5 +#define GL_UNSIGNED_BYTE 0x1401 +#define GL_UNSIGNED_INT 0x1405 +#define GL_UNSIGNED_SHORT 0x1403 +#define GL_UNSIGNED_SHORT_4_4_4_4 0x8033 +#define GL_UNSIGNED_SHORT_5_5_5_1 0x8034 +#define GL_UNSIGNED_SHORT_5_6_5 0x8363 +#define GL_VALIDATE_STATUS 0x8B83 +#define GL_VENDOR 0x1F00 +#define GL_VERSION 0x1F02 +#define GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING 0x889F +#define GL_VERTEX_ATTRIB_ARRAY_ENABLED 0x8622 +#define GL_VERTEX_ATTRIB_ARRAY_NORMALIZED 0x886A +#define GL_VERTEX_ATTRIB_ARRAY_POINTER 0x8645 +#define GL_VERTEX_ATTRIB_ARRAY_SIZE 0x8623 +#define GL_VERTEX_ATTRIB_ARRAY_STRIDE 0x8624 +#define GL_VERTEX_ATTRIB_ARRAY_TYPE 0x8625 +#define GL_VERTEX_SHADER 0x8B31 +#define GL_VIEWPORT 0x0BA2 +#define GL_ZERO 0 + + +#ifndef __khrplatform_h_ +#define __khrplatform_h_ + +/* +** Copyright (c) 2008-2018 The Khronos Group Inc. +** +** Permission is hereby granted, free of charge, to any person obtaining a +** copy of this software and/or associated documentation files (the +** "Materials"), to deal in the Materials without restriction, including +** without limitation the rights to use, copy, modify, merge, publish, +** distribute, sublicense, and/or sell copies of the Materials, and to +** permit persons to whom the Materials are furnished to do so, subject to +** the following conditions: +** +** The above copyright notice and this permission notice shall be included +** in all copies or substantial portions of the Materials. +** +** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. +*/ + +/* Khronos platform-specific types and definitions. + * + * The master copy of khrplatform.h is maintained in the Khronos EGL + * Registry repository at https://github.com/KhronosGroup/EGL-Registry + * The last semantic modification to khrplatform.h was at commit ID: + * 67a3e0864c2d75ea5287b9f3d2eb74a745936692 + * + * Adopters may modify this file to suit their platform. Adopters are + * encouraged to submit platform specific modifications to the Khronos + * group so that they can be included in future versions of this file. + * Please submit changes by filing pull requests or issues on + * the EGL Registry repository linked above. + * + * + * See the Implementer's Guidelines for information about where this file + * should be located on your system and for more details of its use: + * http://www.khronos.org/registry/implementers_guide.pdf + * + * This file should be included as + * #include + * by Khronos client API header files that use its types and defines. + * + * The types in khrplatform.h should only be used to define API-specific types. + * + * Types defined in khrplatform.h: + * khronos_int8_t signed 8 bit + * khronos_uint8_t unsigned 8 bit + * khronos_int16_t signed 16 bit + * khronos_uint16_t unsigned 16 bit + * khronos_int32_t signed 32 bit + * khronos_uint32_t unsigned 32 bit + * khronos_int64_t signed 64 bit + * khronos_uint64_t unsigned 64 bit + * khronos_intptr_t signed same number of bits as a pointer + * khronos_uintptr_t unsigned same number of bits as a pointer + * khronos_ssize_t signed size + * khronos_usize_t unsigned size + * khronos_float_t signed 32 bit floating point + * khronos_time_ns_t unsigned 64 bit time in nanoseconds + * khronos_utime_nanoseconds_t unsigned time interval or absolute time in + * nanoseconds + * khronos_stime_nanoseconds_t signed time interval in nanoseconds + * khronos_boolean_enum_t enumerated boolean type. This should + * only be used as a base type when a client API's boolean type is + * an enum. Client APIs which use an integer or other type for + * booleans cannot use this as the base type for their boolean. + * + * Tokens defined in khrplatform.h: + * + * KHRONOS_FALSE, KHRONOS_TRUE Enumerated boolean false/true values. + * + * KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0. + * KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0. + * + * Calling convention macros defined in this file: + * KHRONOS_APICALL + * KHRONOS_GLAD_API_PTR + * KHRONOS_APIATTRIBUTES + * + * These may be used in function prototypes as: + * + * KHRONOS_APICALL void KHRONOS_GLAD_API_PTR funcname( + * int arg1, + * int arg2) KHRONOS_APIATTRIBUTES; + */ + +#if defined(__SCITECH_SNAP__) && !defined(KHRONOS_STATIC) +# define KHRONOS_STATIC 1 +#endif + +/*------------------------------------------------------------------------- + * Definition of KHRONOS_APICALL + *------------------------------------------------------------------------- + * This precedes the return type of the function in the function prototype. + */ +#if defined(KHRONOS_STATIC) + /* If the preprocessor constant KHRONOS_STATIC is defined, make the + * header compatible with static linking. */ +# define KHRONOS_APICALL +#elif defined(_WIN32) +# define KHRONOS_APICALL __declspec(dllimport) +#elif defined (__SYMBIAN32__) +# define KHRONOS_APICALL IMPORT_C +#elif defined(__ANDROID__) +# define KHRONOS_APICALL __attribute__((visibility("default"))) +#else +# define KHRONOS_APICALL +#endif + +/*------------------------------------------------------------------------- + * Definition of KHRONOS_GLAD_API_PTR + *------------------------------------------------------------------------- + * This follows the return type of the function and precedes the function + * name in the function prototype. + */ +#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__) + /* Win32 but not WinCE */ +# define KHRONOS_GLAD_API_PTR __stdcall +#else +# define KHRONOS_GLAD_API_PTR +#endif + +/*------------------------------------------------------------------------- + * Definition of KHRONOS_APIATTRIBUTES + *------------------------------------------------------------------------- + * This follows the closing parenthesis of the function prototype arguments. + */ +#if defined (__ARMCC_2__) +#define KHRONOS_APIATTRIBUTES __softfp +#else +#define KHRONOS_APIATTRIBUTES +#endif + +/*------------------------------------------------------------------------- + * basic type definitions + *-----------------------------------------------------------------------*/ +#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__) + + +/* + * Using + */ +#include +typedef int32_t khronos_int32_t; +typedef uint32_t khronos_uint32_t; +typedef int64_t khronos_int64_t; +typedef uint64_t khronos_uint64_t; +#define KHRONOS_SUPPORT_INT64 1 +#define KHRONOS_SUPPORT_FLOAT 1 +/* + * To support platform where unsigned long cannot be used interchangeably with + * inptr_t (e.g. CHERI-extended ISAs), we can use the stdint.h intptr_t. + * Ideally, we could just use (u)intptr_t everywhere, but this could result in + * ABI breakage if khronos_uintptr_t is changed from unsigned long to + * unsigned long long or similar (this results in different C++ name mangling). + * To avoid changes for existing platforms, we restrict usage of intptr_t to + * platforms where the size of a pointer is larger than the size of long. + */ +#if defined(__SIZEOF_LONG__) && defined(__SIZEOF_POINTER__) +#if __SIZEOF_POINTER__ > __SIZEOF_LONG__ +#define KHRONOS_USE_INTPTR_T +#endif +#endif + +#elif defined(__VMS ) || defined(__sgi) + +/* + * Using + */ +#include +typedef int32_t khronos_int32_t; +typedef uint32_t khronos_uint32_t; +typedef int64_t khronos_int64_t; +typedef uint64_t khronos_uint64_t; +#define KHRONOS_SUPPORT_INT64 1 +#define KHRONOS_SUPPORT_FLOAT 1 + +#elif defined(_WIN32) && !defined(__SCITECH_SNAP__) + +/* + * Win32 + */ +typedef __int32 khronos_int32_t; +typedef unsigned __int32 khronos_uint32_t; +typedef __int64 khronos_int64_t; +typedef unsigned __int64 khronos_uint64_t; +#define KHRONOS_SUPPORT_INT64 1 +#define KHRONOS_SUPPORT_FLOAT 1 + +#elif defined(__sun__) || defined(__digital__) + +/* + * Sun or Digital + */ +typedef int khronos_int32_t; +typedef unsigned int khronos_uint32_t; +#if defined(__arch64__) || defined(_LP64) +typedef long int khronos_int64_t; +typedef unsigned long int khronos_uint64_t; +#else +typedef long long int khronos_int64_t; +typedef unsigned long long int khronos_uint64_t; +#endif /* __arch64__ */ +#define KHRONOS_SUPPORT_INT64 1 +#define KHRONOS_SUPPORT_FLOAT 1 + +#elif 0 + +/* + * Hypothetical platform with no float or int64 support + */ +typedef int khronos_int32_t; +typedef unsigned int khronos_uint32_t; +#define KHRONOS_SUPPORT_INT64 0 +#define KHRONOS_SUPPORT_FLOAT 0 + +#else + +/* + * Generic fallback + */ +#include +typedef int32_t khronos_int32_t; +typedef uint32_t khronos_uint32_t; +typedef int64_t khronos_int64_t; +typedef uint64_t khronos_uint64_t; +#define KHRONOS_SUPPORT_INT64 1 +#define KHRONOS_SUPPORT_FLOAT 1 + +#endif + + +/* + * Types that are (so far) the same on all platforms + */ +typedef signed char khronos_int8_t; +typedef unsigned char khronos_uint8_t; +typedef signed short int khronos_int16_t; +typedef unsigned short int khronos_uint16_t; + +/* + * Types that differ between LLP64 and LP64 architectures - in LLP64, + * pointers are 64 bits, but 'long' is still 32 bits. Win64 appears + * to be the only LLP64 architecture in current use. + */ +#ifdef KHRONOS_USE_INTPTR_T +typedef intptr_t khronos_intptr_t; +typedef uintptr_t khronos_uintptr_t; +#elif defined(_WIN64) +typedef signed long long int khronos_intptr_t; +typedef unsigned long long int khronos_uintptr_t; +#else +typedef signed long int khronos_intptr_t; +typedef unsigned long int khronos_uintptr_t; +#endif + +#if defined(_WIN64) +typedef signed long long int khronos_ssize_t; +typedef unsigned long long int khronos_usize_t; +#else +typedef signed long int khronos_ssize_t; +typedef unsigned long int khronos_usize_t; +#endif + +#if KHRONOS_SUPPORT_FLOAT +/* + * Float type + */ +typedef float khronos_float_t; +#endif + +#if KHRONOS_SUPPORT_INT64 +/* Time types + * + * These types can be used to represent a time interval in nanoseconds or + * an absolute Unadjusted System Time. Unadjusted System Time is the number + * of nanoseconds since some arbitrary system event (e.g. since the last + * time the system booted). The Unadjusted System Time is an unsigned + * 64 bit value that wraps back to 0 every 584 years. Time intervals + * may be either signed or unsigned. + */ +typedef khronos_uint64_t khronos_utime_nanoseconds_t; +typedef khronos_int64_t khronos_stime_nanoseconds_t; +#endif + +/* + * Dummy value used to pad enum types to 32 bits. + */ +#ifndef KHRONOS_MAX_ENUM +#define KHRONOS_MAX_ENUM 0x7FFFFFFF +#endif + +/* + * Enumerated boolean type + * + * Values other than zero should be considered to be true. Therefore + * comparisons should not be made against KHRONOS_TRUE. + */ +typedef enum { + KHRONOS_FALSE = 0, + KHRONOS_TRUE = 1, + KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM +} khronos_boolean_enum_t; + +#endif /* __khrplatform_h_ */ +typedef unsigned int GLenum; +typedef unsigned char GLboolean; +typedef unsigned int GLbitfield; +typedef void GLvoid; +typedef khronos_int8_t GLbyte; +typedef khronos_uint8_t GLubyte; +typedef khronos_int16_t GLshort; +typedef khronos_uint16_t GLushort; +typedef int GLint; +typedef unsigned int GLuint; +typedef khronos_int32_t GLclampx; +typedef int GLsizei; +typedef khronos_float_t GLfloat; +typedef khronos_float_t GLclampf; +typedef double GLdouble; +typedef double GLclampd; +typedef void *GLeglClientBufferEXT; +typedef void *GLeglImageOES; +typedef char GLchar; +typedef char GLcharARB; +#ifdef __APPLE__ +typedef void *GLhandleARB; +#else +typedef unsigned int GLhandleARB; +#endif +typedef khronos_uint16_t GLhalf; +typedef khronos_uint16_t GLhalfARB; +typedef khronos_int32_t GLfixed; +#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ > 1060) +typedef khronos_intptr_t GLintptr; +#else +typedef khronos_intptr_t GLintptr; +#endif +#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ > 1060) +typedef khronos_intptr_t GLintptrARB; +#else +typedef khronos_intptr_t GLintptrARB; +#endif +#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ > 1060) +typedef khronos_ssize_t GLsizeiptr; +#else +typedef khronos_ssize_t GLsizeiptr; +#endif +#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ > 1060) +typedef khronos_ssize_t GLsizeiptrARB; +#else +typedef khronos_ssize_t GLsizeiptrARB; +#endif +typedef khronos_int64_t GLint64; +typedef khronos_int64_t GLint64EXT; +typedef khronos_uint64_t GLuint64; +typedef khronos_uint64_t GLuint64EXT; +typedef struct __GLsync *GLsync; +struct _cl_context; +struct _cl_event; +typedef void (GLAD_API_PTR *GLDEBUGPROC)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam); +typedef void (GLAD_API_PTR *GLDEBUGPROCARB)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam); +typedef void (GLAD_API_PTR *GLDEBUGPROCKHR)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam); +typedef void (GLAD_API_PTR *GLDEBUGPROCAMD)(GLuint id,GLenum category,GLenum severity,GLsizei length,const GLchar *message,void *userParam); +typedef unsigned short GLhalfNV; +typedef GLintptr GLvdpauSurfaceNV; +typedef void (GLAD_API_PTR *GLVULKANPROCNV)(void); + + +#define GL_ES_VERSION_2_0 1 +GLAD_API_CALL int GLAD_GL_ES_VERSION_2_0; +#define GL_EXT_debug_marker 1 +GLAD_API_CALL int GLAD_GL_EXT_debug_marker; +#define GL_EXT_texture_compression_s3tc 1 +GLAD_API_CALL int GLAD_GL_EXT_texture_compression_s3tc; + + +typedef void (GLAD_API_PTR *PFNGLACTIVETEXTUREPROC)(GLenum texture); +typedef void (GLAD_API_PTR *PFNGLATTACHSHADERPROC)(GLuint program, GLuint shader); +typedef void (GLAD_API_PTR *PFNGLBINDATTRIBLOCATIONPROC)(GLuint program, GLuint index, const GLchar * name); +typedef void (GLAD_API_PTR *PFNGLBINDBUFFERPROC)(GLenum target, GLuint buffer); +typedef void (GLAD_API_PTR *PFNGLBINDFRAMEBUFFERPROC)(GLenum target, GLuint framebuffer); +typedef void (GLAD_API_PTR *PFNGLBINDRENDERBUFFERPROC)(GLenum target, GLuint renderbuffer); +typedef void (GLAD_API_PTR *PFNGLBINDTEXTUREPROC)(GLenum target, GLuint texture); +typedef void (GLAD_API_PTR *PFNGLBLENDCOLORPROC)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha); +typedef void (GLAD_API_PTR *PFNGLBLENDEQUATIONPROC)(GLenum mode); +typedef void (GLAD_API_PTR *PFNGLBLENDEQUATIONSEPARATEPROC)(GLenum modeRGB, GLenum modeAlpha); +typedef void (GLAD_API_PTR *PFNGLBLENDFUNCPROC)(GLenum sfactor, GLenum dfactor); +typedef void (GLAD_API_PTR *PFNGLBLENDFUNCSEPARATEPROC)(GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha); +typedef void (GLAD_API_PTR *PFNGLBUFFERDATAPROC)(GLenum target, GLsizeiptr size, const void * data, GLenum usage); +typedef void (GLAD_API_PTR *PFNGLBUFFERSUBDATAPROC)(GLenum target, GLintptr offset, GLsizeiptr size, const void * data); +typedef GLenum (GLAD_API_PTR *PFNGLCHECKFRAMEBUFFERSTATUSPROC)(GLenum target); +typedef void (GLAD_API_PTR *PFNGLCLEARPROC)(GLbitfield mask); +typedef void (GLAD_API_PTR *PFNGLCLEARCOLORPROC)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha); +typedef void (GLAD_API_PTR *PFNGLCLEARDEPTHFPROC)(GLfloat d); +typedef void (GLAD_API_PTR *PFNGLCLEARSTENCILPROC)(GLint s); +typedef void (GLAD_API_PTR *PFNGLCOLORMASKPROC)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha); +typedef void (GLAD_API_PTR *PFNGLCOMPILESHADERPROC)(GLuint shader); +typedef void (GLAD_API_PTR *PFNGLCOMPRESSEDTEXIMAGE2DPROC)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void * data); +typedef void (GLAD_API_PTR *PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void * data); +typedef void (GLAD_API_PTR *PFNGLCOPYTEXIMAGE2DPROC)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border); +typedef void (GLAD_API_PTR *PFNGLCOPYTEXSUBIMAGE2DPROC)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height); +typedef GLuint (GLAD_API_PTR *PFNGLCREATEPROGRAMPROC)(void); +typedef GLuint (GLAD_API_PTR *PFNGLCREATESHADERPROC)(GLenum type); +typedef void (GLAD_API_PTR *PFNGLCULLFACEPROC)(GLenum mode); +typedef void (GLAD_API_PTR *PFNGLDELETEBUFFERSPROC)(GLsizei n, const GLuint * buffers); +typedef void (GLAD_API_PTR *PFNGLDELETEFRAMEBUFFERSPROC)(GLsizei n, const GLuint * framebuffers); +typedef void (GLAD_API_PTR *PFNGLDELETEPROGRAMPROC)(GLuint program); +typedef void (GLAD_API_PTR *PFNGLDELETERENDERBUFFERSPROC)(GLsizei n, const GLuint * renderbuffers); +typedef void (GLAD_API_PTR *PFNGLDELETESHADERPROC)(GLuint shader); +typedef void (GLAD_API_PTR *PFNGLDELETETEXTURESPROC)(GLsizei n, const GLuint * textures); +typedef void (GLAD_API_PTR *PFNGLDEPTHFUNCPROC)(GLenum func); +typedef void (GLAD_API_PTR *PFNGLDEPTHMASKPROC)(GLboolean flag); +typedef void (GLAD_API_PTR *PFNGLDEPTHRANGEFPROC)(GLfloat n, GLfloat f); +typedef void (GLAD_API_PTR *PFNGLDETACHSHADERPROC)(GLuint program, GLuint shader); +typedef void (GLAD_API_PTR *PFNGLDISABLEPROC)(GLenum cap); +typedef void (GLAD_API_PTR *PFNGLDISABLEVERTEXATTRIBARRAYPROC)(GLuint index); +typedef void (GLAD_API_PTR *PFNGLDRAWARRAYSPROC)(GLenum mode, GLint first, GLsizei count); +typedef void (GLAD_API_PTR *PFNGLDRAWELEMENTSPROC)(GLenum mode, GLsizei count, GLenum type, const void * indices); +typedef void (GLAD_API_PTR *PFNGLENABLEPROC)(GLenum cap); +typedef void (GLAD_API_PTR *PFNGLENABLEVERTEXATTRIBARRAYPROC)(GLuint index); +typedef void (GLAD_API_PTR *PFNGLFINISHPROC)(void); +typedef void (GLAD_API_PTR *PFNGLFLUSHPROC)(void); +typedef void (GLAD_API_PTR *PFNGLFRAMEBUFFERRENDERBUFFERPROC)(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer); +typedef void (GLAD_API_PTR *PFNGLFRAMEBUFFERTEXTURE2DPROC)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level); +typedef void (GLAD_API_PTR *PFNGLFRONTFACEPROC)(GLenum mode); +typedef void (GLAD_API_PTR *PFNGLGENBUFFERSPROC)(GLsizei n, GLuint * buffers); +typedef void (GLAD_API_PTR *PFNGLGENFRAMEBUFFERSPROC)(GLsizei n, GLuint * framebuffers); +typedef void (GLAD_API_PTR *PFNGLGENRENDERBUFFERSPROC)(GLsizei n, GLuint * renderbuffers); +typedef void (GLAD_API_PTR *PFNGLGENTEXTURESPROC)(GLsizei n, GLuint * textures); +typedef void (GLAD_API_PTR *PFNGLGENERATEMIPMAPPROC)(GLenum target); +typedef void (GLAD_API_PTR *PFNGLGETACTIVEATTRIBPROC)(GLuint program, GLuint index, GLsizei bufSize, GLsizei * length, GLint * size, GLenum * type, GLchar * name); +typedef void (GLAD_API_PTR *PFNGLGETACTIVEUNIFORMPROC)(GLuint program, GLuint index, GLsizei bufSize, GLsizei * length, GLint * size, GLenum * type, GLchar * name); +typedef void (GLAD_API_PTR *PFNGLGETATTACHEDSHADERSPROC)(GLuint program, GLsizei maxCount, GLsizei * count, GLuint * shaders); +typedef GLint (GLAD_API_PTR *PFNGLGETATTRIBLOCATIONPROC)(GLuint program, const GLchar * name); +typedef void (GLAD_API_PTR *PFNGLGETBOOLEANVPROC)(GLenum pname, GLboolean * data); +typedef void (GLAD_API_PTR *PFNGLGETBUFFERPARAMETERIVPROC)(GLenum target, GLenum pname, GLint * params); +typedef GLenum (GLAD_API_PTR *PFNGLGETERRORPROC)(void); +typedef void (GLAD_API_PTR *PFNGLGETFLOATVPROC)(GLenum pname, GLfloat * data); +typedef void (GLAD_API_PTR *PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC)(GLenum target, GLenum attachment, GLenum pname, GLint * params); +typedef void (GLAD_API_PTR *PFNGLGETINTEGERVPROC)(GLenum pname, GLint * data); +typedef void (GLAD_API_PTR *PFNGLGETPROGRAMINFOLOGPROC)(GLuint program, GLsizei bufSize, GLsizei * length, GLchar * infoLog); +typedef void (GLAD_API_PTR *PFNGLGETPROGRAMIVPROC)(GLuint program, GLenum pname, GLint * params); +typedef void (GLAD_API_PTR *PFNGLGETRENDERBUFFERPARAMETERIVPROC)(GLenum target, GLenum pname, GLint * params); +typedef void (GLAD_API_PTR *PFNGLGETSHADERINFOLOGPROC)(GLuint shader, GLsizei bufSize, GLsizei * length, GLchar * infoLog); +typedef void (GLAD_API_PTR *PFNGLGETSHADERPRECISIONFORMATPROC)(GLenum shadertype, GLenum precisiontype, GLint * range, GLint * precision); +typedef void (GLAD_API_PTR *PFNGLGETSHADERSOURCEPROC)(GLuint shader, GLsizei bufSize, GLsizei * length, GLchar * source); +typedef void (GLAD_API_PTR *PFNGLGETSHADERIVPROC)(GLuint shader, GLenum pname, GLint * params); +typedef const GLubyte * (GLAD_API_PTR *PFNGLGETSTRINGPROC)(GLenum name); +typedef void (GLAD_API_PTR *PFNGLGETTEXPARAMETERFVPROC)(GLenum target, GLenum pname, GLfloat * params); +typedef void (GLAD_API_PTR *PFNGLGETTEXPARAMETERIVPROC)(GLenum target, GLenum pname, GLint * params); +typedef GLint (GLAD_API_PTR *PFNGLGETUNIFORMLOCATIONPROC)(GLuint program, const GLchar * name); +typedef void (GLAD_API_PTR *PFNGLGETUNIFORMFVPROC)(GLuint program, GLint location, GLfloat * params); +typedef void (GLAD_API_PTR *PFNGLGETUNIFORMIVPROC)(GLuint program, GLint location, GLint * params); +typedef void (GLAD_API_PTR *PFNGLGETVERTEXATTRIBPOINTERVPROC)(GLuint index, GLenum pname, void ** pointer); +typedef void (GLAD_API_PTR *PFNGLGETVERTEXATTRIBFVPROC)(GLuint index, GLenum pname, GLfloat * params); +typedef void (GLAD_API_PTR *PFNGLGETVERTEXATTRIBIVPROC)(GLuint index, GLenum pname, GLint * params); +typedef void (GLAD_API_PTR *PFNGLHINTPROC)(GLenum target, GLenum mode); +typedef void (GLAD_API_PTR *PFNGLINSERTEVENTMARKEREXTPROC)(GLsizei length, const GLchar * marker); +typedef GLboolean (GLAD_API_PTR *PFNGLISBUFFERPROC)(GLuint buffer); +typedef GLboolean (GLAD_API_PTR *PFNGLISENABLEDPROC)(GLenum cap); +typedef GLboolean (GLAD_API_PTR *PFNGLISFRAMEBUFFERPROC)(GLuint framebuffer); +typedef GLboolean (GLAD_API_PTR *PFNGLISPROGRAMPROC)(GLuint program); +typedef GLboolean (GLAD_API_PTR *PFNGLISRENDERBUFFERPROC)(GLuint renderbuffer); +typedef GLboolean (GLAD_API_PTR *PFNGLISSHADERPROC)(GLuint shader); +typedef GLboolean (GLAD_API_PTR *PFNGLISTEXTUREPROC)(GLuint texture); +typedef void (GLAD_API_PTR *PFNGLLINEWIDTHPROC)(GLfloat width); +typedef void (GLAD_API_PTR *PFNGLLINKPROGRAMPROC)(GLuint program); +typedef void (GLAD_API_PTR *PFNGLPIXELSTOREIPROC)(GLenum pname, GLint param); +typedef void (GLAD_API_PTR *PFNGLPOLYGONOFFSETPROC)(GLfloat factor, GLfloat units); +typedef void (GLAD_API_PTR *PFNGLPOPGROUPMARKEREXTPROC)(void); +typedef void (GLAD_API_PTR *PFNGLPUSHGROUPMARKEREXTPROC)(GLsizei length, const GLchar * marker); +typedef void (GLAD_API_PTR *PFNGLREADPIXELSPROC)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void * pixels); +typedef void (GLAD_API_PTR *PFNGLRELEASESHADERCOMPILERPROC)(void); +typedef void (GLAD_API_PTR *PFNGLRENDERBUFFERSTORAGEPROC)(GLenum target, GLenum internalformat, GLsizei width, GLsizei height); +typedef void (GLAD_API_PTR *PFNGLSAMPLECOVERAGEPROC)(GLfloat value, GLboolean invert); +typedef void (GLAD_API_PTR *PFNGLSCISSORPROC)(GLint x, GLint y, GLsizei width, GLsizei height); +typedef void (GLAD_API_PTR *PFNGLSHADERBINARYPROC)(GLsizei count, const GLuint * shaders, GLenum binaryFormat, const void * binary, GLsizei length); +typedef void (GLAD_API_PTR *PFNGLSHADERSOURCEPROC)(GLuint shader, GLsizei count, const GLchar *const* string, const GLint * length); +typedef void (GLAD_API_PTR *PFNGLSTENCILFUNCPROC)(GLenum func, GLint ref, GLuint mask); +typedef void (GLAD_API_PTR *PFNGLSTENCILFUNCSEPARATEPROC)(GLenum face, GLenum func, GLint ref, GLuint mask); +typedef void (GLAD_API_PTR *PFNGLSTENCILMASKPROC)(GLuint mask); +typedef void (GLAD_API_PTR *PFNGLSTENCILMASKSEPARATEPROC)(GLenum face, GLuint mask); +typedef void (GLAD_API_PTR *PFNGLSTENCILOPPROC)(GLenum fail, GLenum zfail, GLenum zpass); +typedef void (GLAD_API_PTR *PFNGLSTENCILOPSEPARATEPROC)(GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass); +typedef void (GLAD_API_PTR *PFNGLTEXIMAGE2DPROC)(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void * pixels); +typedef void (GLAD_API_PTR *PFNGLTEXPARAMETERFPROC)(GLenum target, GLenum pname, GLfloat param); +typedef void (GLAD_API_PTR *PFNGLTEXPARAMETERFVPROC)(GLenum target, GLenum pname, const GLfloat * params); +typedef void (GLAD_API_PTR *PFNGLTEXPARAMETERIPROC)(GLenum target, GLenum pname, GLint param); +typedef void (GLAD_API_PTR *PFNGLTEXPARAMETERIVPROC)(GLenum target, GLenum pname, const GLint * params); +typedef void (GLAD_API_PTR *PFNGLTEXSUBIMAGE2DPROC)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void * pixels); +typedef void (GLAD_API_PTR *PFNGLUNIFORM1FPROC)(GLint location, GLfloat v0); +typedef void (GLAD_API_PTR *PFNGLUNIFORM1FVPROC)(GLint location, GLsizei count, const GLfloat * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORM1IPROC)(GLint location, GLint v0); +typedef void (GLAD_API_PTR *PFNGLUNIFORM1IVPROC)(GLint location, GLsizei count, const GLint * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORM2FPROC)(GLint location, GLfloat v0, GLfloat v1); +typedef void (GLAD_API_PTR *PFNGLUNIFORM2FVPROC)(GLint location, GLsizei count, const GLfloat * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORM2IPROC)(GLint location, GLint v0, GLint v1); +typedef void (GLAD_API_PTR *PFNGLUNIFORM2IVPROC)(GLint location, GLsizei count, const GLint * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORM3FPROC)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2); +typedef void (GLAD_API_PTR *PFNGLUNIFORM3FVPROC)(GLint location, GLsizei count, const GLfloat * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORM3IPROC)(GLint location, GLint v0, GLint v1, GLint v2); +typedef void (GLAD_API_PTR *PFNGLUNIFORM3IVPROC)(GLint location, GLsizei count, const GLint * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORM4FPROC)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3); +typedef void (GLAD_API_PTR *PFNGLUNIFORM4FVPROC)(GLint location, GLsizei count, const GLfloat * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORM4IPROC)(GLint location, GLint v0, GLint v1, GLint v2, GLint v3); +typedef void (GLAD_API_PTR *PFNGLUNIFORM4IVPROC)(GLint location, GLsizei count, const GLint * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORMMATRIX2FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORMMATRIX3FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORMMATRIX4FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat * value); +typedef void (GLAD_API_PTR *PFNGLUSEPROGRAMPROC)(GLuint program); +typedef void (GLAD_API_PTR *PFNGLVALIDATEPROGRAMPROC)(GLuint program); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB1FPROC)(GLuint index, GLfloat x); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB1FVPROC)(GLuint index, const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB2FPROC)(GLuint index, GLfloat x, GLfloat y); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB2FVPROC)(GLuint index, const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB3FPROC)(GLuint index, GLfloat x, GLfloat y, GLfloat z); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB3FVPROC)(GLuint index, const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB4FPROC)(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB4FVPROC)(GLuint index, const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIBPOINTERPROC)(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void * pointer); +typedef void (GLAD_API_PTR *PFNGLVIEWPORTPROC)(GLint x, GLint y, GLsizei width, GLsizei height); + +GLAD_API_CALL PFNGLACTIVETEXTUREPROC glad_glActiveTexture; +#define glActiveTexture glad_glActiveTexture +GLAD_API_CALL PFNGLATTACHSHADERPROC glad_glAttachShader; +#define glAttachShader glad_glAttachShader +GLAD_API_CALL PFNGLBINDATTRIBLOCATIONPROC glad_glBindAttribLocation; +#define glBindAttribLocation glad_glBindAttribLocation +GLAD_API_CALL PFNGLBINDBUFFERPROC glad_glBindBuffer; +#define glBindBuffer glad_glBindBuffer +GLAD_API_CALL PFNGLBINDFRAMEBUFFERPROC glad_glBindFramebuffer; +#define glBindFramebuffer glad_glBindFramebuffer +GLAD_API_CALL PFNGLBINDRENDERBUFFERPROC glad_glBindRenderbuffer; +#define glBindRenderbuffer glad_glBindRenderbuffer +GLAD_API_CALL PFNGLBINDTEXTUREPROC glad_glBindTexture; +#define glBindTexture glad_glBindTexture +GLAD_API_CALL PFNGLBLENDCOLORPROC glad_glBlendColor; +#define glBlendColor glad_glBlendColor +GLAD_API_CALL PFNGLBLENDEQUATIONPROC glad_glBlendEquation; +#define glBlendEquation glad_glBlendEquation +GLAD_API_CALL PFNGLBLENDEQUATIONSEPARATEPROC glad_glBlendEquationSeparate; +#define glBlendEquationSeparate glad_glBlendEquationSeparate +GLAD_API_CALL PFNGLBLENDFUNCPROC glad_glBlendFunc; +#define glBlendFunc glad_glBlendFunc +GLAD_API_CALL PFNGLBLENDFUNCSEPARATEPROC glad_glBlendFuncSeparate; +#define glBlendFuncSeparate glad_glBlendFuncSeparate +GLAD_API_CALL PFNGLBUFFERDATAPROC glad_glBufferData; +#define glBufferData glad_glBufferData +GLAD_API_CALL PFNGLBUFFERSUBDATAPROC glad_glBufferSubData; +#define glBufferSubData glad_glBufferSubData +GLAD_API_CALL PFNGLCHECKFRAMEBUFFERSTATUSPROC glad_glCheckFramebufferStatus; +#define glCheckFramebufferStatus glad_glCheckFramebufferStatus +GLAD_API_CALL PFNGLCLEARPROC glad_glClear; +#define glClear glad_glClear +GLAD_API_CALL PFNGLCLEARCOLORPROC glad_glClearColor; +#define glClearColor glad_glClearColor +GLAD_API_CALL PFNGLCLEARDEPTHFPROC glad_glClearDepthf; +#define glClearDepthf glad_glClearDepthf +GLAD_API_CALL PFNGLCLEARSTENCILPROC glad_glClearStencil; +#define glClearStencil glad_glClearStencil +GLAD_API_CALL PFNGLCOLORMASKPROC glad_glColorMask; +#define glColorMask glad_glColorMask +GLAD_API_CALL PFNGLCOMPILESHADERPROC glad_glCompileShader; +#define glCompileShader glad_glCompileShader +GLAD_API_CALL PFNGLCOMPRESSEDTEXIMAGE2DPROC glad_glCompressedTexImage2D; +#define glCompressedTexImage2D glad_glCompressedTexImage2D +GLAD_API_CALL PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC glad_glCompressedTexSubImage2D; +#define glCompressedTexSubImage2D glad_glCompressedTexSubImage2D +GLAD_API_CALL PFNGLCOPYTEXIMAGE2DPROC glad_glCopyTexImage2D; +#define glCopyTexImage2D glad_glCopyTexImage2D +GLAD_API_CALL PFNGLCOPYTEXSUBIMAGE2DPROC glad_glCopyTexSubImage2D; +#define glCopyTexSubImage2D glad_glCopyTexSubImage2D +GLAD_API_CALL PFNGLCREATEPROGRAMPROC glad_glCreateProgram; +#define glCreateProgram glad_glCreateProgram +GLAD_API_CALL PFNGLCREATESHADERPROC glad_glCreateShader; +#define glCreateShader glad_glCreateShader +GLAD_API_CALL PFNGLCULLFACEPROC glad_glCullFace; +#define glCullFace glad_glCullFace +GLAD_API_CALL PFNGLDELETEBUFFERSPROC glad_glDeleteBuffers; +#define glDeleteBuffers glad_glDeleteBuffers +GLAD_API_CALL PFNGLDELETEFRAMEBUFFERSPROC glad_glDeleteFramebuffers; +#define glDeleteFramebuffers glad_glDeleteFramebuffers +GLAD_API_CALL PFNGLDELETEPROGRAMPROC glad_glDeleteProgram; +#define glDeleteProgram glad_glDeleteProgram +GLAD_API_CALL PFNGLDELETERENDERBUFFERSPROC glad_glDeleteRenderbuffers; +#define glDeleteRenderbuffers glad_glDeleteRenderbuffers +GLAD_API_CALL PFNGLDELETESHADERPROC glad_glDeleteShader; +#define glDeleteShader glad_glDeleteShader +GLAD_API_CALL PFNGLDELETETEXTURESPROC glad_glDeleteTextures; +#define glDeleteTextures glad_glDeleteTextures +GLAD_API_CALL PFNGLDEPTHFUNCPROC glad_glDepthFunc; +#define glDepthFunc glad_glDepthFunc +GLAD_API_CALL PFNGLDEPTHMASKPROC glad_glDepthMask; +#define glDepthMask glad_glDepthMask +GLAD_API_CALL PFNGLDEPTHRANGEFPROC glad_glDepthRangef; +#define glDepthRangef glad_glDepthRangef +GLAD_API_CALL PFNGLDETACHSHADERPROC glad_glDetachShader; +#define glDetachShader glad_glDetachShader +GLAD_API_CALL PFNGLDISABLEPROC glad_glDisable; +#define glDisable glad_glDisable +GLAD_API_CALL PFNGLDISABLEVERTEXATTRIBARRAYPROC glad_glDisableVertexAttribArray; +#define glDisableVertexAttribArray glad_glDisableVertexAttribArray +GLAD_API_CALL PFNGLDRAWARRAYSPROC glad_glDrawArrays; +#define glDrawArrays glad_glDrawArrays +GLAD_API_CALL PFNGLDRAWELEMENTSPROC glad_glDrawElements; +#define glDrawElements glad_glDrawElements +GLAD_API_CALL PFNGLENABLEPROC glad_glEnable; +#define glEnable glad_glEnable +GLAD_API_CALL PFNGLENABLEVERTEXATTRIBARRAYPROC glad_glEnableVertexAttribArray; +#define glEnableVertexAttribArray glad_glEnableVertexAttribArray +GLAD_API_CALL PFNGLFINISHPROC glad_glFinish; +#define glFinish glad_glFinish +GLAD_API_CALL PFNGLFLUSHPROC glad_glFlush; +#define glFlush glad_glFlush +GLAD_API_CALL PFNGLFRAMEBUFFERRENDERBUFFERPROC glad_glFramebufferRenderbuffer; +#define glFramebufferRenderbuffer glad_glFramebufferRenderbuffer +GLAD_API_CALL PFNGLFRAMEBUFFERTEXTURE2DPROC glad_glFramebufferTexture2D; +#define glFramebufferTexture2D glad_glFramebufferTexture2D +GLAD_API_CALL PFNGLFRONTFACEPROC glad_glFrontFace; +#define glFrontFace glad_glFrontFace +GLAD_API_CALL PFNGLGENBUFFERSPROC glad_glGenBuffers; +#define glGenBuffers glad_glGenBuffers +GLAD_API_CALL PFNGLGENFRAMEBUFFERSPROC glad_glGenFramebuffers; +#define glGenFramebuffers glad_glGenFramebuffers +GLAD_API_CALL PFNGLGENRENDERBUFFERSPROC glad_glGenRenderbuffers; +#define glGenRenderbuffers glad_glGenRenderbuffers +GLAD_API_CALL PFNGLGENTEXTURESPROC glad_glGenTextures; +#define glGenTextures glad_glGenTextures +GLAD_API_CALL PFNGLGENERATEMIPMAPPROC glad_glGenerateMipmap; +#define glGenerateMipmap glad_glGenerateMipmap +GLAD_API_CALL PFNGLGETACTIVEATTRIBPROC glad_glGetActiveAttrib; +#define glGetActiveAttrib glad_glGetActiveAttrib +GLAD_API_CALL PFNGLGETACTIVEUNIFORMPROC glad_glGetActiveUniform; +#define glGetActiveUniform glad_glGetActiveUniform +GLAD_API_CALL PFNGLGETATTACHEDSHADERSPROC glad_glGetAttachedShaders; +#define glGetAttachedShaders glad_glGetAttachedShaders +GLAD_API_CALL PFNGLGETATTRIBLOCATIONPROC glad_glGetAttribLocation; +#define glGetAttribLocation glad_glGetAttribLocation +GLAD_API_CALL PFNGLGETBOOLEANVPROC glad_glGetBooleanv; +#define glGetBooleanv glad_glGetBooleanv +GLAD_API_CALL PFNGLGETBUFFERPARAMETERIVPROC glad_glGetBufferParameteriv; +#define glGetBufferParameteriv glad_glGetBufferParameteriv +GLAD_API_CALL PFNGLGETERRORPROC glad_glGetError; +#define glGetError glad_glGetError +GLAD_API_CALL PFNGLGETFLOATVPROC glad_glGetFloatv; +#define glGetFloatv glad_glGetFloatv +GLAD_API_CALL PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC glad_glGetFramebufferAttachmentParameteriv; +#define glGetFramebufferAttachmentParameteriv glad_glGetFramebufferAttachmentParameteriv +GLAD_API_CALL PFNGLGETINTEGERVPROC glad_glGetIntegerv; +#define glGetIntegerv glad_glGetIntegerv +GLAD_API_CALL PFNGLGETPROGRAMINFOLOGPROC glad_glGetProgramInfoLog; +#define glGetProgramInfoLog glad_glGetProgramInfoLog +GLAD_API_CALL PFNGLGETPROGRAMIVPROC glad_glGetProgramiv; +#define glGetProgramiv glad_glGetProgramiv +GLAD_API_CALL PFNGLGETRENDERBUFFERPARAMETERIVPROC glad_glGetRenderbufferParameteriv; +#define glGetRenderbufferParameteriv glad_glGetRenderbufferParameteriv +GLAD_API_CALL PFNGLGETSHADERINFOLOGPROC glad_glGetShaderInfoLog; +#define glGetShaderInfoLog glad_glGetShaderInfoLog +GLAD_API_CALL PFNGLGETSHADERPRECISIONFORMATPROC glad_glGetShaderPrecisionFormat; +#define glGetShaderPrecisionFormat glad_glGetShaderPrecisionFormat +GLAD_API_CALL PFNGLGETSHADERSOURCEPROC glad_glGetShaderSource; +#define glGetShaderSource glad_glGetShaderSource +GLAD_API_CALL PFNGLGETSHADERIVPROC glad_glGetShaderiv; +#define glGetShaderiv glad_glGetShaderiv +GLAD_API_CALL PFNGLGETSTRINGPROC glad_glGetString; +#define glGetString glad_glGetString +GLAD_API_CALL PFNGLGETTEXPARAMETERFVPROC glad_glGetTexParameterfv; +#define glGetTexParameterfv glad_glGetTexParameterfv +GLAD_API_CALL PFNGLGETTEXPARAMETERIVPROC glad_glGetTexParameteriv; +#define glGetTexParameteriv glad_glGetTexParameteriv +GLAD_API_CALL PFNGLGETUNIFORMLOCATIONPROC glad_glGetUniformLocation; +#define glGetUniformLocation glad_glGetUniformLocation +GLAD_API_CALL PFNGLGETUNIFORMFVPROC glad_glGetUniformfv; +#define glGetUniformfv glad_glGetUniformfv +GLAD_API_CALL PFNGLGETUNIFORMIVPROC glad_glGetUniformiv; +#define glGetUniformiv glad_glGetUniformiv +GLAD_API_CALL PFNGLGETVERTEXATTRIBPOINTERVPROC glad_glGetVertexAttribPointerv; +#define glGetVertexAttribPointerv glad_glGetVertexAttribPointerv +GLAD_API_CALL PFNGLGETVERTEXATTRIBFVPROC glad_glGetVertexAttribfv; +#define glGetVertexAttribfv glad_glGetVertexAttribfv +GLAD_API_CALL PFNGLGETVERTEXATTRIBIVPROC glad_glGetVertexAttribiv; +#define glGetVertexAttribiv glad_glGetVertexAttribiv +GLAD_API_CALL PFNGLHINTPROC glad_glHint; +#define glHint glad_glHint +GLAD_API_CALL PFNGLINSERTEVENTMARKEREXTPROC glad_glInsertEventMarkerEXT; +#define glInsertEventMarkerEXT glad_glInsertEventMarkerEXT +GLAD_API_CALL PFNGLISBUFFERPROC glad_glIsBuffer; +#define glIsBuffer glad_glIsBuffer +GLAD_API_CALL PFNGLISENABLEDPROC glad_glIsEnabled; +#define glIsEnabled glad_glIsEnabled +GLAD_API_CALL PFNGLISFRAMEBUFFERPROC glad_glIsFramebuffer; +#define glIsFramebuffer glad_glIsFramebuffer +GLAD_API_CALL PFNGLISPROGRAMPROC glad_glIsProgram; +#define glIsProgram glad_glIsProgram +GLAD_API_CALL PFNGLISRENDERBUFFERPROC glad_glIsRenderbuffer; +#define glIsRenderbuffer glad_glIsRenderbuffer +GLAD_API_CALL PFNGLISSHADERPROC glad_glIsShader; +#define glIsShader glad_glIsShader +GLAD_API_CALL PFNGLISTEXTUREPROC glad_glIsTexture; +#define glIsTexture glad_glIsTexture +GLAD_API_CALL PFNGLLINEWIDTHPROC glad_glLineWidth; +#define glLineWidth glad_glLineWidth +GLAD_API_CALL PFNGLLINKPROGRAMPROC glad_glLinkProgram; +#define glLinkProgram glad_glLinkProgram +GLAD_API_CALL PFNGLPIXELSTOREIPROC glad_glPixelStorei; +#define glPixelStorei glad_glPixelStorei +GLAD_API_CALL PFNGLPOLYGONOFFSETPROC glad_glPolygonOffset; +#define glPolygonOffset glad_glPolygonOffset +GLAD_API_CALL PFNGLPOPGROUPMARKEREXTPROC glad_glPopGroupMarkerEXT; +#define glPopGroupMarkerEXT glad_glPopGroupMarkerEXT +GLAD_API_CALL PFNGLPUSHGROUPMARKEREXTPROC glad_glPushGroupMarkerEXT; +#define glPushGroupMarkerEXT glad_glPushGroupMarkerEXT +GLAD_API_CALL PFNGLREADPIXELSPROC glad_glReadPixels; +#define glReadPixels glad_glReadPixels +GLAD_API_CALL PFNGLRELEASESHADERCOMPILERPROC glad_glReleaseShaderCompiler; +#define glReleaseShaderCompiler glad_glReleaseShaderCompiler +GLAD_API_CALL PFNGLRENDERBUFFERSTORAGEPROC glad_glRenderbufferStorage; +#define glRenderbufferStorage glad_glRenderbufferStorage +GLAD_API_CALL PFNGLSAMPLECOVERAGEPROC glad_glSampleCoverage; +#define glSampleCoverage glad_glSampleCoverage +GLAD_API_CALL PFNGLSCISSORPROC glad_glScissor; +#define glScissor glad_glScissor +GLAD_API_CALL PFNGLSHADERBINARYPROC glad_glShaderBinary; +#define glShaderBinary glad_glShaderBinary +GLAD_API_CALL PFNGLSHADERSOURCEPROC glad_glShaderSource; +#define glShaderSource glad_glShaderSource +GLAD_API_CALL PFNGLSTENCILFUNCPROC glad_glStencilFunc; +#define glStencilFunc glad_glStencilFunc +GLAD_API_CALL PFNGLSTENCILFUNCSEPARATEPROC glad_glStencilFuncSeparate; +#define glStencilFuncSeparate glad_glStencilFuncSeparate +GLAD_API_CALL PFNGLSTENCILMASKPROC glad_glStencilMask; +#define glStencilMask glad_glStencilMask +GLAD_API_CALL PFNGLSTENCILMASKSEPARATEPROC glad_glStencilMaskSeparate; +#define glStencilMaskSeparate glad_glStencilMaskSeparate +GLAD_API_CALL PFNGLSTENCILOPPROC glad_glStencilOp; +#define glStencilOp glad_glStencilOp +GLAD_API_CALL PFNGLSTENCILOPSEPARATEPROC glad_glStencilOpSeparate; +#define glStencilOpSeparate glad_glStencilOpSeparate +GLAD_API_CALL PFNGLTEXIMAGE2DPROC glad_glTexImage2D; +#define glTexImage2D glad_glTexImage2D +GLAD_API_CALL PFNGLTEXPARAMETERFPROC glad_glTexParameterf; +#define glTexParameterf glad_glTexParameterf +GLAD_API_CALL PFNGLTEXPARAMETERFVPROC glad_glTexParameterfv; +#define glTexParameterfv glad_glTexParameterfv +GLAD_API_CALL PFNGLTEXPARAMETERIPROC glad_glTexParameteri; +#define glTexParameteri glad_glTexParameteri +GLAD_API_CALL PFNGLTEXPARAMETERIVPROC glad_glTexParameteriv; +#define glTexParameteriv glad_glTexParameteriv +GLAD_API_CALL PFNGLTEXSUBIMAGE2DPROC glad_glTexSubImage2D; +#define glTexSubImage2D glad_glTexSubImage2D +GLAD_API_CALL PFNGLUNIFORM1FPROC glad_glUniform1f; +#define glUniform1f glad_glUniform1f +GLAD_API_CALL PFNGLUNIFORM1FVPROC glad_glUniform1fv; +#define glUniform1fv glad_glUniform1fv +GLAD_API_CALL PFNGLUNIFORM1IPROC glad_glUniform1i; +#define glUniform1i glad_glUniform1i +GLAD_API_CALL PFNGLUNIFORM1IVPROC glad_glUniform1iv; +#define glUniform1iv glad_glUniform1iv +GLAD_API_CALL PFNGLUNIFORM2FPROC glad_glUniform2f; +#define glUniform2f glad_glUniform2f +GLAD_API_CALL PFNGLUNIFORM2FVPROC glad_glUniform2fv; +#define glUniform2fv glad_glUniform2fv +GLAD_API_CALL PFNGLUNIFORM2IPROC glad_glUniform2i; +#define glUniform2i glad_glUniform2i +GLAD_API_CALL PFNGLUNIFORM2IVPROC glad_glUniform2iv; +#define glUniform2iv glad_glUniform2iv +GLAD_API_CALL PFNGLUNIFORM3FPROC glad_glUniform3f; +#define glUniform3f glad_glUniform3f +GLAD_API_CALL PFNGLUNIFORM3FVPROC glad_glUniform3fv; +#define glUniform3fv glad_glUniform3fv +GLAD_API_CALL PFNGLUNIFORM3IPROC glad_glUniform3i; +#define glUniform3i glad_glUniform3i +GLAD_API_CALL PFNGLUNIFORM3IVPROC glad_glUniform3iv; +#define glUniform3iv glad_glUniform3iv +GLAD_API_CALL PFNGLUNIFORM4FPROC glad_glUniform4f; +#define glUniform4f glad_glUniform4f +GLAD_API_CALL PFNGLUNIFORM4FVPROC glad_glUniform4fv; +#define glUniform4fv glad_glUniform4fv +GLAD_API_CALL PFNGLUNIFORM4IPROC glad_glUniform4i; +#define glUniform4i glad_glUniform4i +GLAD_API_CALL PFNGLUNIFORM4IVPROC glad_glUniform4iv; +#define glUniform4iv glad_glUniform4iv +GLAD_API_CALL PFNGLUNIFORMMATRIX2FVPROC glad_glUniformMatrix2fv; +#define glUniformMatrix2fv glad_glUniformMatrix2fv +GLAD_API_CALL PFNGLUNIFORMMATRIX3FVPROC glad_glUniformMatrix3fv; +#define glUniformMatrix3fv glad_glUniformMatrix3fv +GLAD_API_CALL PFNGLUNIFORMMATRIX4FVPROC glad_glUniformMatrix4fv; +#define glUniformMatrix4fv glad_glUniformMatrix4fv +GLAD_API_CALL PFNGLUSEPROGRAMPROC glad_glUseProgram; +#define glUseProgram glad_glUseProgram +GLAD_API_CALL PFNGLVALIDATEPROGRAMPROC glad_glValidateProgram; +#define glValidateProgram glad_glValidateProgram +GLAD_API_CALL PFNGLVERTEXATTRIB1FPROC glad_glVertexAttrib1f; +#define glVertexAttrib1f glad_glVertexAttrib1f +GLAD_API_CALL PFNGLVERTEXATTRIB1FVPROC glad_glVertexAttrib1fv; +#define glVertexAttrib1fv glad_glVertexAttrib1fv +GLAD_API_CALL PFNGLVERTEXATTRIB2FPROC glad_glVertexAttrib2f; +#define glVertexAttrib2f glad_glVertexAttrib2f +GLAD_API_CALL PFNGLVERTEXATTRIB2FVPROC glad_glVertexAttrib2fv; +#define glVertexAttrib2fv glad_glVertexAttrib2fv +GLAD_API_CALL PFNGLVERTEXATTRIB3FPROC glad_glVertexAttrib3f; +#define glVertexAttrib3f glad_glVertexAttrib3f +GLAD_API_CALL PFNGLVERTEXATTRIB3FVPROC glad_glVertexAttrib3fv; +#define glVertexAttrib3fv glad_glVertexAttrib3fv +GLAD_API_CALL PFNGLVERTEXATTRIB4FPROC glad_glVertexAttrib4f; +#define glVertexAttrib4f glad_glVertexAttrib4f +GLAD_API_CALL PFNGLVERTEXATTRIB4FVPROC glad_glVertexAttrib4fv; +#define glVertexAttrib4fv glad_glVertexAttrib4fv +GLAD_API_CALL PFNGLVERTEXATTRIBPOINTERPROC glad_glVertexAttribPointer; +#define glVertexAttribPointer glad_glVertexAttribPointer +GLAD_API_CALL PFNGLVIEWPORTPROC glad_glViewport; +#define glViewport glad_glViewport + + + + + +GLAD_API_CALL int gladLoadGLES2UserPtr( GLADuserptrloadfunc load, void *userptr); +GLAD_API_CALL int gladLoadGLES2( GLADloadfunc load); + + + +#ifdef __cplusplus +} +#endif +#endif + +/* Source */ +#ifdef GLAD_GLES2_IMPLEMENTATION +/** + * SPDX-License-Identifier: (WTFPL OR CC0-1.0) AND Apache-2.0 + */ +#include +#include +#include + +#ifndef GLAD_IMPL_UTIL_C_ +#define GLAD_IMPL_UTIL_C_ + +#ifdef _MSC_VER +#define GLAD_IMPL_UTIL_SSCANF sscanf_s +#else +#define GLAD_IMPL_UTIL_SSCANF sscanf +#endif + +#endif /* GLAD_IMPL_UTIL_C_ */ + +#ifdef __cplusplus +extern "C" { +#endif + + + +int GLAD_GL_ES_VERSION_2_0 = 0; +int GLAD_GL_EXT_debug_marker = 0; +int GLAD_GL_EXT_texture_compression_s3tc = 0; + + + +PFNGLACTIVETEXTUREPROC glad_glActiveTexture = NULL; +PFNGLATTACHSHADERPROC glad_glAttachShader = NULL; +PFNGLBINDATTRIBLOCATIONPROC glad_glBindAttribLocation = NULL; +PFNGLBINDBUFFERPROC glad_glBindBuffer = NULL; +PFNGLBINDFRAMEBUFFERPROC glad_glBindFramebuffer = NULL; +PFNGLBINDRENDERBUFFERPROC glad_glBindRenderbuffer = NULL; +PFNGLBINDTEXTUREPROC glad_glBindTexture = NULL; +PFNGLBLENDCOLORPROC glad_glBlendColor = NULL; +PFNGLBLENDEQUATIONPROC glad_glBlendEquation = NULL; +PFNGLBLENDEQUATIONSEPARATEPROC glad_glBlendEquationSeparate = NULL; +PFNGLBLENDFUNCPROC glad_glBlendFunc = NULL; +PFNGLBLENDFUNCSEPARATEPROC glad_glBlendFuncSeparate = NULL; +PFNGLBUFFERDATAPROC glad_glBufferData = NULL; +PFNGLBUFFERSUBDATAPROC glad_glBufferSubData = NULL; +PFNGLCHECKFRAMEBUFFERSTATUSPROC glad_glCheckFramebufferStatus = NULL; +PFNGLCLEARPROC glad_glClear = NULL; +PFNGLCLEARCOLORPROC glad_glClearColor = NULL; +PFNGLCLEARDEPTHFPROC glad_glClearDepthf = NULL; +PFNGLCLEARSTENCILPROC glad_glClearStencil = NULL; +PFNGLCOLORMASKPROC glad_glColorMask = NULL; +PFNGLCOMPILESHADERPROC glad_glCompileShader = NULL; +PFNGLCOMPRESSEDTEXIMAGE2DPROC glad_glCompressedTexImage2D = NULL; +PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC glad_glCompressedTexSubImage2D = NULL; +PFNGLCOPYTEXIMAGE2DPROC glad_glCopyTexImage2D = NULL; +PFNGLCOPYTEXSUBIMAGE2DPROC glad_glCopyTexSubImage2D = NULL; +PFNGLCREATEPROGRAMPROC glad_glCreateProgram = NULL; +PFNGLCREATESHADERPROC glad_glCreateShader = NULL; +PFNGLCULLFACEPROC glad_glCullFace = NULL; +PFNGLDELETEBUFFERSPROC glad_glDeleteBuffers = NULL; +PFNGLDELETEFRAMEBUFFERSPROC glad_glDeleteFramebuffers = NULL; +PFNGLDELETEPROGRAMPROC glad_glDeleteProgram = NULL; +PFNGLDELETERENDERBUFFERSPROC glad_glDeleteRenderbuffers = NULL; +PFNGLDELETESHADERPROC glad_glDeleteShader = NULL; +PFNGLDELETETEXTURESPROC glad_glDeleteTextures = NULL; +PFNGLDEPTHFUNCPROC glad_glDepthFunc = NULL; +PFNGLDEPTHMASKPROC glad_glDepthMask = NULL; +PFNGLDEPTHRANGEFPROC glad_glDepthRangef = NULL; +PFNGLDETACHSHADERPROC glad_glDetachShader = NULL; +PFNGLDISABLEPROC glad_glDisable = NULL; +PFNGLDISABLEVERTEXATTRIBARRAYPROC glad_glDisableVertexAttribArray = NULL; +PFNGLDRAWARRAYSPROC glad_glDrawArrays = NULL; +PFNGLDRAWELEMENTSPROC glad_glDrawElements = NULL; +PFNGLENABLEPROC glad_glEnable = NULL; +PFNGLENABLEVERTEXATTRIBARRAYPROC glad_glEnableVertexAttribArray = NULL; +PFNGLFINISHPROC glad_glFinish = NULL; +PFNGLFLUSHPROC glad_glFlush = NULL; +PFNGLFRAMEBUFFERRENDERBUFFERPROC glad_glFramebufferRenderbuffer = NULL; +PFNGLFRAMEBUFFERTEXTURE2DPROC glad_glFramebufferTexture2D = NULL; +PFNGLFRONTFACEPROC glad_glFrontFace = NULL; +PFNGLGENBUFFERSPROC glad_glGenBuffers = NULL; +PFNGLGENFRAMEBUFFERSPROC glad_glGenFramebuffers = NULL; +PFNGLGENRENDERBUFFERSPROC glad_glGenRenderbuffers = NULL; +PFNGLGENTEXTURESPROC glad_glGenTextures = NULL; +PFNGLGENERATEMIPMAPPROC glad_glGenerateMipmap = NULL; +PFNGLGETACTIVEATTRIBPROC glad_glGetActiveAttrib = NULL; +PFNGLGETACTIVEUNIFORMPROC glad_glGetActiveUniform = NULL; +PFNGLGETATTACHEDSHADERSPROC glad_glGetAttachedShaders = NULL; +PFNGLGETATTRIBLOCATIONPROC glad_glGetAttribLocation = NULL; +PFNGLGETBOOLEANVPROC glad_glGetBooleanv = NULL; +PFNGLGETBUFFERPARAMETERIVPROC glad_glGetBufferParameteriv = NULL; +PFNGLGETERRORPROC glad_glGetError = NULL; +PFNGLGETFLOATVPROC glad_glGetFloatv = NULL; +PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC glad_glGetFramebufferAttachmentParameteriv = NULL; +PFNGLGETINTEGERVPROC glad_glGetIntegerv = NULL; +PFNGLGETPROGRAMINFOLOGPROC glad_glGetProgramInfoLog = NULL; +PFNGLGETPROGRAMIVPROC glad_glGetProgramiv = NULL; +PFNGLGETRENDERBUFFERPARAMETERIVPROC glad_glGetRenderbufferParameteriv = NULL; +PFNGLGETSHADERINFOLOGPROC glad_glGetShaderInfoLog = NULL; +PFNGLGETSHADERPRECISIONFORMATPROC glad_glGetShaderPrecisionFormat = NULL; +PFNGLGETSHADERSOURCEPROC glad_glGetShaderSource = NULL; +PFNGLGETSHADERIVPROC glad_glGetShaderiv = NULL; +PFNGLGETSTRINGPROC glad_glGetString = NULL; +PFNGLGETTEXPARAMETERFVPROC glad_glGetTexParameterfv = NULL; +PFNGLGETTEXPARAMETERIVPROC glad_glGetTexParameteriv = NULL; +PFNGLGETUNIFORMLOCATIONPROC glad_glGetUniformLocation = NULL; +PFNGLGETUNIFORMFVPROC glad_glGetUniformfv = NULL; +PFNGLGETUNIFORMIVPROC glad_glGetUniformiv = NULL; +PFNGLGETVERTEXATTRIBPOINTERVPROC glad_glGetVertexAttribPointerv = NULL; +PFNGLGETVERTEXATTRIBFVPROC glad_glGetVertexAttribfv = NULL; +PFNGLGETVERTEXATTRIBIVPROC glad_glGetVertexAttribiv = NULL; +PFNGLHINTPROC glad_glHint = NULL; +PFNGLINSERTEVENTMARKEREXTPROC glad_glInsertEventMarkerEXT = NULL; +PFNGLISBUFFERPROC glad_glIsBuffer = NULL; +PFNGLISENABLEDPROC glad_glIsEnabled = NULL; +PFNGLISFRAMEBUFFERPROC glad_glIsFramebuffer = NULL; +PFNGLISPROGRAMPROC glad_glIsProgram = NULL; +PFNGLISRENDERBUFFERPROC glad_glIsRenderbuffer = NULL; +PFNGLISSHADERPROC glad_glIsShader = NULL; +PFNGLISTEXTUREPROC glad_glIsTexture = NULL; +PFNGLLINEWIDTHPROC glad_glLineWidth = NULL; +PFNGLLINKPROGRAMPROC glad_glLinkProgram = NULL; +PFNGLPIXELSTOREIPROC glad_glPixelStorei = NULL; +PFNGLPOLYGONOFFSETPROC glad_glPolygonOffset = NULL; +PFNGLPOPGROUPMARKEREXTPROC glad_glPopGroupMarkerEXT = NULL; +PFNGLPUSHGROUPMARKEREXTPROC glad_glPushGroupMarkerEXT = NULL; +PFNGLREADPIXELSPROC glad_glReadPixels = NULL; +PFNGLRELEASESHADERCOMPILERPROC glad_glReleaseShaderCompiler = NULL; +PFNGLRENDERBUFFERSTORAGEPROC glad_glRenderbufferStorage = NULL; +PFNGLSAMPLECOVERAGEPROC glad_glSampleCoverage = NULL; +PFNGLSCISSORPROC glad_glScissor = NULL; +PFNGLSHADERBINARYPROC glad_glShaderBinary = NULL; +PFNGLSHADERSOURCEPROC glad_glShaderSource = NULL; +PFNGLSTENCILFUNCPROC glad_glStencilFunc = NULL; +PFNGLSTENCILFUNCSEPARATEPROC glad_glStencilFuncSeparate = NULL; +PFNGLSTENCILMASKPROC glad_glStencilMask = NULL; +PFNGLSTENCILMASKSEPARATEPROC glad_glStencilMaskSeparate = NULL; +PFNGLSTENCILOPPROC glad_glStencilOp = NULL; +PFNGLSTENCILOPSEPARATEPROC glad_glStencilOpSeparate = NULL; +PFNGLTEXIMAGE2DPROC glad_glTexImage2D = NULL; +PFNGLTEXPARAMETERFPROC glad_glTexParameterf = NULL; +PFNGLTEXPARAMETERFVPROC glad_glTexParameterfv = NULL; +PFNGLTEXPARAMETERIPROC glad_glTexParameteri = NULL; +PFNGLTEXPARAMETERIVPROC glad_glTexParameteriv = NULL; +PFNGLTEXSUBIMAGE2DPROC glad_glTexSubImage2D = NULL; +PFNGLUNIFORM1FPROC glad_glUniform1f = NULL; +PFNGLUNIFORM1FVPROC glad_glUniform1fv = NULL; +PFNGLUNIFORM1IPROC glad_glUniform1i = NULL; +PFNGLUNIFORM1IVPROC glad_glUniform1iv = NULL; +PFNGLUNIFORM2FPROC glad_glUniform2f = NULL; +PFNGLUNIFORM2FVPROC glad_glUniform2fv = NULL; +PFNGLUNIFORM2IPROC glad_glUniform2i = NULL; +PFNGLUNIFORM2IVPROC glad_glUniform2iv = NULL; +PFNGLUNIFORM3FPROC glad_glUniform3f = NULL; +PFNGLUNIFORM3FVPROC glad_glUniform3fv = NULL; +PFNGLUNIFORM3IPROC glad_glUniform3i = NULL; +PFNGLUNIFORM3IVPROC glad_glUniform3iv = NULL; +PFNGLUNIFORM4FPROC glad_glUniform4f = NULL; +PFNGLUNIFORM4FVPROC glad_glUniform4fv = NULL; +PFNGLUNIFORM4IPROC glad_glUniform4i = NULL; +PFNGLUNIFORM4IVPROC glad_glUniform4iv = NULL; +PFNGLUNIFORMMATRIX2FVPROC glad_glUniformMatrix2fv = NULL; +PFNGLUNIFORMMATRIX3FVPROC glad_glUniformMatrix3fv = NULL; +PFNGLUNIFORMMATRIX4FVPROC glad_glUniformMatrix4fv = NULL; +PFNGLUSEPROGRAMPROC glad_glUseProgram = NULL; +PFNGLVALIDATEPROGRAMPROC glad_glValidateProgram = NULL; +PFNGLVERTEXATTRIB1FPROC glad_glVertexAttrib1f = NULL; +PFNGLVERTEXATTRIB1FVPROC glad_glVertexAttrib1fv = NULL; +PFNGLVERTEXATTRIB2FPROC glad_glVertexAttrib2f = NULL; +PFNGLVERTEXATTRIB2FVPROC glad_glVertexAttrib2fv = NULL; +PFNGLVERTEXATTRIB3FPROC glad_glVertexAttrib3f = NULL; +PFNGLVERTEXATTRIB3FVPROC glad_glVertexAttrib3fv = NULL; +PFNGLVERTEXATTRIB4FPROC glad_glVertexAttrib4f = NULL; +PFNGLVERTEXATTRIB4FVPROC glad_glVertexAttrib4fv = NULL; +PFNGLVERTEXATTRIBPOINTERPROC glad_glVertexAttribPointer = NULL; +PFNGLVIEWPORTPROC glad_glViewport = NULL; + + +static void glad_gl_load_GL_ES_VERSION_2_0( GLADuserptrloadfunc load, void* userptr) { + if(!GLAD_GL_ES_VERSION_2_0) return; + glad_glActiveTexture = (PFNGLACTIVETEXTUREPROC) load(userptr, "glActiveTexture"); + glad_glAttachShader = (PFNGLATTACHSHADERPROC) load(userptr, "glAttachShader"); + glad_glBindAttribLocation = (PFNGLBINDATTRIBLOCATIONPROC) load(userptr, "glBindAttribLocation"); + glad_glBindBuffer = (PFNGLBINDBUFFERPROC) load(userptr, "glBindBuffer"); + glad_glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC) load(userptr, "glBindFramebuffer"); + glad_glBindRenderbuffer = (PFNGLBINDRENDERBUFFERPROC) load(userptr, "glBindRenderbuffer"); + glad_glBindTexture = (PFNGLBINDTEXTUREPROC) load(userptr, "glBindTexture"); + glad_glBlendColor = (PFNGLBLENDCOLORPROC) load(userptr, "glBlendColor"); + glad_glBlendEquation = (PFNGLBLENDEQUATIONPROC) load(userptr, "glBlendEquation"); + glad_glBlendEquationSeparate = (PFNGLBLENDEQUATIONSEPARATEPROC) load(userptr, "glBlendEquationSeparate"); + glad_glBlendFunc = (PFNGLBLENDFUNCPROC) load(userptr, "glBlendFunc"); + glad_glBlendFuncSeparate = (PFNGLBLENDFUNCSEPARATEPROC) load(userptr, "glBlendFuncSeparate"); + glad_glBufferData = (PFNGLBUFFERDATAPROC) load(userptr, "glBufferData"); + glad_glBufferSubData = (PFNGLBUFFERSUBDATAPROC) load(userptr, "glBufferSubData"); + glad_glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC) load(userptr, "glCheckFramebufferStatus"); + glad_glClear = (PFNGLCLEARPROC) load(userptr, "glClear"); + glad_glClearColor = (PFNGLCLEARCOLORPROC) load(userptr, "glClearColor"); + glad_glClearDepthf = (PFNGLCLEARDEPTHFPROC) load(userptr, "glClearDepthf"); + glad_glClearStencil = (PFNGLCLEARSTENCILPROC) load(userptr, "glClearStencil"); + glad_glColorMask = (PFNGLCOLORMASKPROC) load(userptr, "glColorMask"); + glad_glCompileShader = (PFNGLCOMPILESHADERPROC) load(userptr, "glCompileShader"); + glad_glCompressedTexImage2D = (PFNGLCOMPRESSEDTEXIMAGE2DPROC) load(userptr, "glCompressedTexImage2D"); + glad_glCompressedTexSubImage2D = (PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC) load(userptr, "glCompressedTexSubImage2D"); + glad_glCopyTexImage2D = (PFNGLCOPYTEXIMAGE2DPROC) load(userptr, "glCopyTexImage2D"); + glad_glCopyTexSubImage2D = (PFNGLCOPYTEXSUBIMAGE2DPROC) load(userptr, "glCopyTexSubImage2D"); + glad_glCreateProgram = (PFNGLCREATEPROGRAMPROC) load(userptr, "glCreateProgram"); + glad_glCreateShader = (PFNGLCREATESHADERPROC) load(userptr, "glCreateShader"); + glad_glCullFace = (PFNGLCULLFACEPROC) load(userptr, "glCullFace"); + glad_glDeleteBuffers = (PFNGLDELETEBUFFERSPROC) load(userptr, "glDeleteBuffers"); + glad_glDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC) load(userptr, "glDeleteFramebuffers"); + glad_glDeleteProgram = (PFNGLDELETEPROGRAMPROC) load(userptr, "glDeleteProgram"); + glad_glDeleteRenderbuffers = (PFNGLDELETERENDERBUFFERSPROC) load(userptr, "glDeleteRenderbuffers"); + glad_glDeleteShader = (PFNGLDELETESHADERPROC) load(userptr, "glDeleteShader"); + glad_glDeleteTextures = (PFNGLDELETETEXTURESPROC) load(userptr, "glDeleteTextures"); + glad_glDepthFunc = (PFNGLDEPTHFUNCPROC) load(userptr, "glDepthFunc"); + glad_glDepthMask = (PFNGLDEPTHMASKPROC) load(userptr, "glDepthMask"); + glad_glDepthRangef = (PFNGLDEPTHRANGEFPROC) load(userptr, "glDepthRangef"); + glad_glDetachShader = (PFNGLDETACHSHADERPROC) load(userptr, "glDetachShader"); + glad_glDisable = (PFNGLDISABLEPROC) load(userptr, "glDisable"); + glad_glDisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC) load(userptr, "glDisableVertexAttribArray"); + glad_glDrawArrays = (PFNGLDRAWARRAYSPROC) load(userptr, "glDrawArrays"); + glad_glDrawElements = (PFNGLDRAWELEMENTSPROC) load(userptr, "glDrawElements"); + glad_glEnable = (PFNGLENABLEPROC) load(userptr, "glEnable"); + glad_glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC) load(userptr, "glEnableVertexAttribArray"); + glad_glFinish = (PFNGLFINISHPROC) load(userptr, "glFinish"); + glad_glFlush = (PFNGLFLUSHPROC) load(userptr, "glFlush"); + glad_glFramebufferRenderbuffer = (PFNGLFRAMEBUFFERRENDERBUFFERPROC) load(userptr, "glFramebufferRenderbuffer"); + glad_glFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC) load(userptr, "glFramebufferTexture2D"); + glad_glFrontFace = (PFNGLFRONTFACEPROC) load(userptr, "glFrontFace"); + glad_glGenBuffers = (PFNGLGENBUFFERSPROC) load(userptr, "glGenBuffers"); + glad_glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC) load(userptr, "glGenFramebuffers"); + glad_glGenRenderbuffers = (PFNGLGENRENDERBUFFERSPROC) load(userptr, "glGenRenderbuffers"); + glad_glGenTextures = (PFNGLGENTEXTURESPROC) load(userptr, "glGenTextures"); + glad_glGenerateMipmap = (PFNGLGENERATEMIPMAPPROC) load(userptr, "glGenerateMipmap"); + glad_glGetActiveAttrib = (PFNGLGETACTIVEATTRIBPROC) load(userptr, "glGetActiveAttrib"); + glad_glGetActiveUniform = (PFNGLGETACTIVEUNIFORMPROC) load(userptr, "glGetActiveUniform"); + glad_glGetAttachedShaders = (PFNGLGETATTACHEDSHADERSPROC) load(userptr, "glGetAttachedShaders"); + glad_glGetAttribLocation = (PFNGLGETATTRIBLOCATIONPROC) load(userptr, "glGetAttribLocation"); + glad_glGetBooleanv = (PFNGLGETBOOLEANVPROC) load(userptr, "glGetBooleanv"); + glad_glGetBufferParameteriv = (PFNGLGETBUFFERPARAMETERIVPROC) load(userptr, "glGetBufferParameteriv"); + glad_glGetError = (PFNGLGETERRORPROC) load(userptr, "glGetError"); + glad_glGetFloatv = (PFNGLGETFLOATVPROC) load(userptr, "glGetFloatv"); + glad_glGetFramebufferAttachmentParameteriv = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC) load(userptr, "glGetFramebufferAttachmentParameteriv"); + glad_glGetIntegerv = (PFNGLGETINTEGERVPROC) load(userptr, "glGetIntegerv"); + glad_glGetProgramInfoLog = (PFNGLGETPROGRAMINFOLOGPROC) load(userptr, "glGetProgramInfoLog"); + glad_glGetProgramiv = (PFNGLGETPROGRAMIVPROC) load(userptr, "glGetProgramiv"); + glad_glGetRenderbufferParameteriv = (PFNGLGETRENDERBUFFERPARAMETERIVPROC) load(userptr, "glGetRenderbufferParameteriv"); + glad_glGetShaderInfoLog = (PFNGLGETSHADERINFOLOGPROC) load(userptr, "glGetShaderInfoLog"); + glad_glGetShaderPrecisionFormat = (PFNGLGETSHADERPRECISIONFORMATPROC) load(userptr, "glGetShaderPrecisionFormat"); + glad_glGetShaderSource = (PFNGLGETSHADERSOURCEPROC) load(userptr, "glGetShaderSource"); + glad_glGetShaderiv = (PFNGLGETSHADERIVPROC) load(userptr, "glGetShaderiv"); + glad_glGetString = (PFNGLGETSTRINGPROC) load(userptr, "glGetString"); + glad_glGetTexParameterfv = (PFNGLGETTEXPARAMETERFVPROC) load(userptr, "glGetTexParameterfv"); + glad_glGetTexParameteriv = (PFNGLGETTEXPARAMETERIVPROC) load(userptr, "glGetTexParameteriv"); + glad_glGetUniformLocation = (PFNGLGETUNIFORMLOCATIONPROC) load(userptr, "glGetUniformLocation"); + glad_glGetUniformfv = (PFNGLGETUNIFORMFVPROC) load(userptr, "glGetUniformfv"); + glad_glGetUniformiv = (PFNGLGETUNIFORMIVPROC) load(userptr, "glGetUniformiv"); + glad_glGetVertexAttribPointerv = (PFNGLGETVERTEXATTRIBPOINTERVPROC) load(userptr, "glGetVertexAttribPointerv"); + glad_glGetVertexAttribfv = (PFNGLGETVERTEXATTRIBFVPROC) load(userptr, "glGetVertexAttribfv"); + glad_glGetVertexAttribiv = (PFNGLGETVERTEXATTRIBIVPROC) load(userptr, "glGetVertexAttribiv"); + glad_glHint = (PFNGLHINTPROC) load(userptr, "glHint"); + glad_glIsBuffer = (PFNGLISBUFFERPROC) load(userptr, "glIsBuffer"); + glad_glIsEnabled = (PFNGLISENABLEDPROC) load(userptr, "glIsEnabled"); + glad_glIsFramebuffer = (PFNGLISFRAMEBUFFERPROC) load(userptr, "glIsFramebuffer"); + glad_glIsProgram = (PFNGLISPROGRAMPROC) load(userptr, "glIsProgram"); + glad_glIsRenderbuffer = (PFNGLISRENDERBUFFERPROC) load(userptr, "glIsRenderbuffer"); + glad_glIsShader = (PFNGLISSHADERPROC) load(userptr, "glIsShader"); + glad_glIsTexture = (PFNGLISTEXTUREPROC) load(userptr, "glIsTexture"); + glad_glLineWidth = (PFNGLLINEWIDTHPROC) load(userptr, "glLineWidth"); + glad_glLinkProgram = (PFNGLLINKPROGRAMPROC) load(userptr, "glLinkProgram"); + glad_glPixelStorei = (PFNGLPIXELSTOREIPROC) load(userptr, "glPixelStorei"); + glad_glPolygonOffset = (PFNGLPOLYGONOFFSETPROC) load(userptr, "glPolygonOffset"); + glad_glReadPixels = (PFNGLREADPIXELSPROC) load(userptr, "glReadPixels"); + glad_glReleaseShaderCompiler = (PFNGLRELEASESHADERCOMPILERPROC) load(userptr, "glReleaseShaderCompiler"); + glad_glRenderbufferStorage = (PFNGLRENDERBUFFERSTORAGEPROC) load(userptr, "glRenderbufferStorage"); + glad_glSampleCoverage = (PFNGLSAMPLECOVERAGEPROC) load(userptr, "glSampleCoverage"); + glad_glScissor = (PFNGLSCISSORPROC) load(userptr, "glScissor"); + glad_glShaderBinary = (PFNGLSHADERBINARYPROC) load(userptr, "glShaderBinary"); + glad_glShaderSource = (PFNGLSHADERSOURCEPROC) load(userptr, "glShaderSource"); + glad_glStencilFunc = (PFNGLSTENCILFUNCPROC) load(userptr, "glStencilFunc"); + glad_glStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC) load(userptr, "glStencilFuncSeparate"); + glad_glStencilMask = (PFNGLSTENCILMASKPROC) load(userptr, "glStencilMask"); + glad_glStencilMaskSeparate = (PFNGLSTENCILMASKSEPARATEPROC) load(userptr, "glStencilMaskSeparate"); + glad_glStencilOp = (PFNGLSTENCILOPPROC) load(userptr, "glStencilOp"); + glad_glStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC) load(userptr, "glStencilOpSeparate"); + glad_glTexImage2D = (PFNGLTEXIMAGE2DPROC) load(userptr, "glTexImage2D"); + glad_glTexParameterf = (PFNGLTEXPARAMETERFPROC) load(userptr, "glTexParameterf"); + glad_glTexParameterfv = (PFNGLTEXPARAMETERFVPROC) load(userptr, "glTexParameterfv"); + glad_glTexParameteri = (PFNGLTEXPARAMETERIPROC) load(userptr, "glTexParameteri"); + glad_glTexParameteriv = (PFNGLTEXPARAMETERIVPROC) load(userptr, "glTexParameteriv"); + glad_glTexSubImage2D = (PFNGLTEXSUBIMAGE2DPROC) load(userptr, "glTexSubImage2D"); + glad_glUniform1f = (PFNGLUNIFORM1FPROC) load(userptr, "glUniform1f"); + glad_glUniform1fv = (PFNGLUNIFORM1FVPROC) load(userptr, "glUniform1fv"); + glad_glUniform1i = (PFNGLUNIFORM1IPROC) load(userptr, "glUniform1i"); + glad_glUniform1iv = (PFNGLUNIFORM1IVPROC) load(userptr, "glUniform1iv"); + glad_glUniform2f = (PFNGLUNIFORM2FPROC) load(userptr, "glUniform2f"); + glad_glUniform2fv = (PFNGLUNIFORM2FVPROC) load(userptr, "glUniform2fv"); + glad_glUniform2i = (PFNGLUNIFORM2IPROC) load(userptr, "glUniform2i"); + glad_glUniform2iv = (PFNGLUNIFORM2IVPROC) load(userptr, "glUniform2iv"); + glad_glUniform3f = (PFNGLUNIFORM3FPROC) load(userptr, "glUniform3f"); + glad_glUniform3fv = (PFNGLUNIFORM3FVPROC) load(userptr, "glUniform3fv"); + glad_glUniform3i = (PFNGLUNIFORM3IPROC) load(userptr, "glUniform3i"); + glad_glUniform3iv = (PFNGLUNIFORM3IVPROC) load(userptr, "glUniform3iv"); + glad_glUniform4f = (PFNGLUNIFORM4FPROC) load(userptr, "glUniform4f"); + glad_glUniform4fv = (PFNGLUNIFORM4FVPROC) load(userptr, "glUniform4fv"); + glad_glUniform4i = (PFNGLUNIFORM4IPROC) load(userptr, "glUniform4i"); + glad_glUniform4iv = (PFNGLUNIFORM4IVPROC) load(userptr, "glUniform4iv"); + glad_glUniformMatrix2fv = (PFNGLUNIFORMMATRIX2FVPROC) load(userptr, "glUniformMatrix2fv"); + glad_glUniformMatrix3fv = (PFNGLUNIFORMMATRIX3FVPROC) load(userptr, "glUniformMatrix3fv"); + glad_glUniformMatrix4fv = (PFNGLUNIFORMMATRIX4FVPROC) load(userptr, "glUniformMatrix4fv"); + glad_glUseProgram = (PFNGLUSEPROGRAMPROC) load(userptr, "glUseProgram"); + glad_glValidateProgram = (PFNGLVALIDATEPROGRAMPROC) load(userptr, "glValidateProgram"); + glad_glVertexAttrib1f = (PFNGLVERTEXATTRIB1FPROC) load(userptr, "glVertexAttrib1f"); + glad_glVertexAttrib1fv = (PFNGLVERTEXATTRIB1FVPROC) load(userptr, "glVertexAttrib1fv"); + glad_glVertexAttrib2f = (PFNGLVERTEXATTRIB2FPROC) load(userptr, "glVertexAttrib2f"); + glad_glVertexAttrib2fv = (PFNGLVERTEXATTRIB2FVPROC) load(userptr, "glVertexAttrib2fv"); + glad_glVertexAttrib3f = (PFNGLVERTEXATTRIB3FPROC) load(userptr, "glVertexAttrib3f"); + glad_glVertexAttrib3fv = (PFNGLVERTEXATTRIB3FVPROC) load(userptr, "glVertexAttrib3fv"); + glad_glVertexAttrib4f = (PFNGLVERTEXATTRIB4FPROC) load(userptr, "glVertexAttrib4f"); + glad_glVertexAttrib4fv = (PFNGLVERTEXATTRIB4FVPROC) load(userptr, "glVertexAttrib4fv"); + glad_glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC) load(userptr, "glVertexAttribPointer"); + glad_glViewport = (PFNGLVIEWPORTPROC) load(userptr, "glViewport"); +} +static void glad_gl_load_GL_EXT_debug_marker( GLADuserptrloadfunc load, void* userptr) { + if(!GLAD_GL_EXT_debug_marker) return; + glad_glInsertEventMarkerEXT = (PFNGLINSERTEVENTMARKEREXTPROC) load(userptr, "glInsertEventMarkerEXT"); + glad_glPopGroupMarkerEXT = (PFNGLPOPGROUPMARKEREXTPROC) load(userptr, "glPopGroupMarkerEXT"); + glad_glPushGroupMarkerEXT = (PFNGLPUSHGROUPMARKEREXTPROC) load(userptr, "glPushGroupMarkerEXT"); +} + + + +#if defined(GL_ES_VERSION_3_0) || defined(GL_VERSION_3_0) +#define GLAD_GL_IS_SOME_NEW_VERSION 1 +#else +#define GLAD_GL_IS_SOME_NEW_VERSION 0 +#endif + +static int glad_gl_get_extensions( int version, const char **out_exts, unsigned int *out_num_exts_i, char ***out_exts_i) { +#if GLAD_GL_IS_SOME_NEW_VERSION + if(GLAD_VERSION_MAJOR(version) < 3) { +#else + GLAD_UNUSED(version); + GLAD_UNUSED(out_num_exts_i); + GLAD_UNUSED(out_exts_i); +#endif + if (glad_glGetString == NULL) { + return 0; + } + *out_exts = (const char *)glad_glGetString(GL_EXTENSIONS); +#if GLAD_GL_IS_SOME_NEW_VERSION + } else { + unsigned int index = 0; + unsigned int num_exts_i = 0; + char **exts_i = NULL; + if (glad_glGetStringi == NULL || glad_glGetIntegerv == NULL) { + return 0; + } + glad_glGetIntegerv(GL_NUM_EXTENSIONS, (int*) &num_exts_i); + if (num_exts_i > 0) { + exts_i = (char **) malloc(num_exts_i * (sizeof *exts_i)); + } + if (exts_i == NULL) { + return 0; + } + for(index = 0; index < num_exts_i; index++) { + const char *gl_str_tmp = (const char*) glad_glGetStringi(GL_EXTENSIONS, index); + size_t len = strlen(gl_str_tmp) + 1; + + char *local_str = (char*) malloc(len * sizeof(char)); + if(local_str != NULL) { + memcpy(local_str, gl_str_tmp, len * sizeof(char)); + } + + exts_i[index] = local_str; + } + + *out_num_exts_i = num_exts_i; + *out_exts_i = exts_i; + } +#endif + return 1; +} +static void glad_gl_free_extensions(char **exts_i, unsigned int num_exts_i) { + if (exts_i != NULL) { + unsigned int index; + for(index = 0; index < num_exts_i; index++) { + free((void *) (exts_i[index])); + } + free((void *)exts_i); + exts_i = NULL; + } +} +static int glad_gl_has_extension(int version, const char *exts, unsigned int num_exts_i, char **exts_i, const char *ext) { + if(GLAD_VERSION_MAJOR(version) < 3 || !GLAD_GL_IS_SOME_NEW_VERSION) { + const char *extensions; + const char *loc; + const char *terminator; + extensions = exts; + if(extensions == NULL || ext == NULL) { + return 0; + } + while(1) { + loc = strstr(extensions, ext); + if(loc == NULL) { + return 0; + } + terminator = loc + strlen(ext); + if((loc == extensions || *(loc - 1) == ' ') && + (*terminator == ' ' || *terminator == '\0')) { + return 1; + } + extensions = terminator; + } + } else { + unsigned int index; + for(index = 0; index < num_exts_i; index++) { + const char *e = exts_i[index]; + if(strcmp(e, ext) == 0) { + return 1; + } + } + } + return 0; +} + +static GLADapiproc glad_gl_get_proc_from_userptr(void *userptr, const char* name) { + return (GLAD_GNUC_EXTENSION (GLADapiproc (*)(const char *name)) userptr)(name); +} + +static int glad_gl_find_extensions_gles2( int version) { + const char *exts = NULL; + unsigned int num_exts_i = 0; + char **exts_i = NULL; + if (!glad_gl_get_extensions(version, &exts, &num_exts_i, &exts_i)) return 0; + + GLAD_GL_EXT_debug_marker = glad_gl_has_extension(version, exts, num_exts_i, exts_i, "GL_EXT_debug_marker"); + GLAD_GL_EXT_texture_compression_s3tc = glad_gl_has_extension(version, exts, num_exts_i, exts_i, "GL_EXT_texture_compression_s3tc"); + + glad_gl_free_extensions(exts_i, num_exts_i); + + return 1; +} + +static int glad_gl_find_core_gles2(void) { + int i; + const char* version; + const char* prefixes[] = { + "OpenGL ES-CM ", + "OpenGL ES-CL ", + "OpenGL ES ", + "OpenGL SC ", + NULL + }; + int major = 0; + int minor = 0; + version = (const char*) glad_glGetString(GL_VERSION); + if (!version) return 0; + for (i = 0; prefixes[i]; i++) { + const size_t length = strlen(prefixes[i]); + if (strncmp(version, prefixes[i], length) == 0) { + version += length; + break; + } + } + + GLAD_IMPL_UTIL_SSCANF(version, "%d.%d", &major, &minor); + + GLAD_GL_ES_VERSION_2_0 = (major == 2 && minor >= 0) || major > 2; + + return GLAD_MAKE_VERSION(major, minor); +} + +int gladLoadGLES2UserPtr( GLADuserptrloadfunc load, void *userptr) { + int version; + + glad_glGetString = (PFNGLGETSTRINGPROC) load(userptr, "glGetString"); + if(glad_glGetString == NULL) return 0; + if(glad_glGetString(GL_VERSION) == NULL) return 0; + version = glad_gl_find_core_gles2(); + + glad_gl_load_GL_ES_VERSION_2_0(load, userptr); + + if (!glad_gl_find_extensions_gles2(version)) return 0; + glad_gl_load_GL_EXT_debug_marker(load, userptr); + + + + return version; +} + + +int gladLoadGLES2( GLADloadfunc load) { + return gladLoadGLES2UserPtr( glad_gl_get_proc_from_userptr, GLAD_GNUC_EXTENSION (void*) load); +} + + + + + + +#ifdef __cplusplus +} +#endif + +#endif /* GLAD_GLES2_IMPLEMENTATION */ + diff --git a/engine/common.h b/engine/common.h index 221d533..3c1c292 100644 --- a/engine/common.h +++ b/engine/common.h @@ -10,10 +10,15 @@ #include #include #include +#if _WIN32 #include #include -#include #include +#else +#include +#include +#endif +#include #include #include @@ -88,7 +93,9 @@ class textBuffer_c { // Constants // ========= +#ifndef M_PI #define M_PI 3.14159265358979323846f +#endif static const char axchr[] = {'X', 'Y', 'Z', 'W'}; @@ -478,6 +485,12 @@ char* _AllocStringLen(size_t len, const char* file, int line); void FreeString(const char* str); dword StringHash(const char* str, int mask); +#ifndef _WIN32 +#define _stricmp strcasecmp +#define _strnicmp strncasecmp +#define _chdir chdir +#endif + // ======= // Headers // ======= diff --git a/engine/common/common.cpp b/engine/common/common.cpp index 3123e6c..099d497 100644 --- a/engine/common/common.cpp +++ b/engine/common/common.cpp @@ -91,7 +91,7 @@ textBuffer_c &textBuffer_c::operator=(const char* r) { // Reallocate buffer and copy the string Alloc((int)strlen(r)); - strcpy_s(buf, len+1, r); + strcpy(buf, r); return *this; } @@ -99,7 +99,7 @@ void textBuffer_c::IncSize() { len++; char* tmp = new char[len+1]; - strncpy_s(tmp, len+1, buf, len); + memcpy(tmp, buf, len); tmp[len] = 0; delete buf; buf = tmp; @@ -109,7 +109,7 @@ void textBuffer_c::DecSize() { len--; char* tmp = new char[len+1]; - strncpy_s(tmp, len+1, buf, len); + memcpy(tmp, buf, len); tmp[len] = 0; delete buf; buf = tmp; @@ -254,7 +254,7 @@ char* _AllocString(const char* str, const char* file, int line) size_t aslen = strlen(str) + 1; char* al = new(file, line) char[aslen]; - strcpy_s(al, aslen, str); + strcpy(al, str); return al; } @@ -267,7 +267,7 @@ char* _AllocStringLen(size_t len, const char* file, int line) void FreeString(const char* str) { - if (str) delete str; + if (str) delete[] str; } dword StringHash(const char* str, int mask) diff --git a/engine/common/console.cpp b/engine/common/console.cpp index 828eb88..87fb907 100644 --- a/engine/common/console.cpp +++ b/engine/common/console.cpp @@ -6,6 +6,10 @@ #include "common.h" +#include +#include +#include + // ============= // Configuration // ============= @@ -27,46 +31,32 @@ conVar_c::conVar_c(IConsole* conHnd) : con(conHnd) -{ - name = NULL; - strVal = NULL; - defVal = NULL; -} +{} conVar_c::~conVar_c() -{ - FreeString(name); - FreeString(strVal); - FreeString(defVal); -} +{} void conVar_c::Set(int in) { - char tmp[16]; - _itoa_s(in, tmp, 16, 10); - Set(tmp); + Set(fmt::format("{}", in).c_str()); } void conVar_c::Set(float in) { - char tmp[64]; - sprintf_s(tmp, 64, "%f", in); - Set(tmp); + Set(fmt::format("{:f}", in).c_str()); } -void conVar_c::Set(const char* in) +void conVar_c::Set(char const* in) { - if ( !strcmp(in, strVal) ) { + if (in == strVal) { // No change return; } - FreeString(strVal); - mod = true; // Flag as modified - intVal = atoi(in); // Set values - floatVal = (float)atof(in); - strVal = AllocString(in); + std::from_chars(in, in + strlen(in), intVal); // Set values + floatVal = (float)strtod(in, nullptr); + strVal = in; Clamp(); // Clamp value } @@ -76,15 +66,6 @@ void conVar_c::Toggle() Set(!intVal); } -int conVar_c::Get(char* out, int outSz) -{ - if (out) { - strncpy_s(out, outSz, strVal, outSz-1); - } - - return intVal; -} - bool conVar_c::GetMod() { bool wasMod = mod; @@ -94,10 +75,9 @@ bool conVar_c::GetMod() void conVar_c::Reset() { - FreeString(strVal); - intVal = atoi(defVal); - floatVal = (float)atof(defVal); - strVal = AllocString(defVal); + intVal = atoi(defVal.c_str()); + floatVal = (float)atof(defVal.c_str()); + strVal = defVal; } void conVar_c::Clamp() @@ -114,7 +94,7 @@ void conVar_c::Clamp() return; } - con->Printf("\"%s\" clamped to %d\n", name, intVal); + con->Print(fmt::format("\"{}\" clamped to {}\n", name, intVal).c_str()); } // ======= @@ -155,8 +135,8 @@ class console_c: public IConsole { void Executef(const char* fmt, ...); void ExecCommands(bool deferUnknown); - conVar_c* Cvar_Add(const char* name, int flags, const char* def, int minVal = 0, int maxVal = 0); - conVar_c* Cvar_Ptr(const char* name); + conVar_c* Cvar_Add(std::string_view name, int flags, std::string_view def, int minVal = 0, int maxVal = 0); + conVar_c* Cvar_Ptr(std::string_view name); conCmd_c* EnumCmd(int* index); conVar_c* EnumCvar(int* index); @@ -184,11 +164,11 @@ class console_c: public IConsole { conCmd_c* cmdList[CON_MAXCMD]; - conCmd_c* Cmd_Ptr(const char* name); + conCmd_c* Cmd_Ptr(std::string_view name); conVar_c* cvarList[CON_MAXCVAR]; - int Cvar_Find(const char* name); + int Cvar_Find(std::string_view name); int cmdBuf_numLine; char* cmdBuf_lines[CON_MAXCMDBUFFER]; @@ -348,9 +328,7 @@ void console_c::Printf(const char* fmt, ...) void console_c::PrintFunc(const char* func) { // Print function title - char text[256]; - sprintf_s(text, 256, "\n--- %s ---\n", func); - Print(text); + Print(fmt::format("\n--- {} ---\n", func).c_str()); } void console_c::Warning(const char* fmt, ...) @@ -358,10 +336,18 @@ void console_c::Warning(const char* fmt, ...) // Print warning text va_list va; va_start(va, fmt); - char text[4096]; +#ifdef _WIN32 + char text[4096]; vsprintf_s(text, 4096, fmt, va); +#else + char* text{}; + vasprintf(&text, fmt, va); +#endif va_end(va); Printf("^4Warning: %s\n", text); +#ifndef _WIN32 + free(text); +#endif } void console_c::Clear() @@ -532,10 +518,11 @@ void conCmdHandler_c::Cmd_PrivAdd(const char* name, int minArgs, const char* usa _con->Warning("Reached console command limit (CON_MAXCMD)"); } -conCmd_c* console_c::Cmd_Ptr(const char* name) +conCmd_c* console_c::Cmd_Ptr(std::string_view name) { + std::string name_str(name); for (int slot = 0; slot < CON_MAXCMD; slot++) { - if (cmdList[slot] && _stricmp(cmdList[slot]->name, name) == 0) { + if (cmdList[slot] && _stricmp(cmdList[slot]->name.c_str(), name_str.c_str()) == 0) { return cmdList[slot]; } } @@ -562,14 +549,14 @@ conCmd_c* console_c::EnumCmd(int* index) // Console Variables // ================= -conVar_c* console_c::Cvar_Add(const char* name, int flags, const char* def, int minVal, int maxVal) +conVar_c* console_c::Cvar_Add(std::string_view name, int flags, std::string_view def, int minVal, int maxVal) { - char* setVal = NULL; + std::optional setVal; int slot = Cvar_Find(name); if (slot >= 0) { if (cvarList[slot]->flags & CV_SET) { // Has been set, take value and delete old cvar - setVal = AllocString(cvarList[slot]->strVal); + setVal = cvarList[slot]->strVal; delete cvarList[slot]; cvarList[slot] = NULL; } else { @@ -591,9 +578,9 @@ conVar_c* console_c::Cvar_Add(const char* name, int flags, const char* def, int } cvarList[slot] = new conVar_c(this); - cvarList[slot]->name = AllocString(name); + cvarList[slot]->name = (std::string)name; cvarList[slot]->flags = flags; - cvarList[slot]->defVal = AllocString(def); + cvarList[slot]->defVal = (std::string)def; if (flags & CV_CLAMP) { cvarList[slot]->min = minVal; cvarList[slot]->max = maxVal; @@ -601,15 +588,14 @@ conVar_c* console_c::Cvar_Add(const char* name, int flags, const char* def, int cvarList[slot]->Reset(); if (setVal) { - cvarList[slot]->Set(setVal); + cvarList[slot]->Set(setVal->c_str()); cvarList[slot]->mod = false; - FreeString(setVal); } return cvarList[slot]; } -conVar_c* console_c::Cvar_Ptr(const char* name) +conVar_c* console_c::Cvar_Ptr(std::string_view name) { int slot = Cvar_Find(name); if (slot >= 0) { @@ -619,11 +605,12 @@ conVar_c* console_c::Cvar_Ptr(const char* name) } } -int console_c::Cvar_Find(const char* name) +int console_c::Cvar_Find(std::string_view name) { + std::string name_str(name); // Find the cvar and return the index for (int slot = 0; slot < CON_MAXCVAR; slot++) { - if (cvarList[slot] && _stricmp(name, cvarList[slot]->name) == 0) { + if (cvarList[slot] && _stricmp(name_str.c_str(), cvarList[slot]->name.c_str()) == 0) { return slot; } } @@ -652,29 +639,41 @@ conVar_c* console_c::EnumCvar(int* index) void console_c::Execute(const char* cmd) { - char* newCmd = AllocString(cmd); - char* tk_context = NULL; - char* lp = strtok_s(newCmd, ";\n", &tk_context); - while (lp) { + std::string_view newCmd = cmd; + std::string_view sep = ";\n"; + while (!newCmd.empty()) { + auto end = newCmd.find_first_of(sep); + if (end == newCmd.npos) { + end = newCmd.size(); + } + std::string lp(newCmd.substr(0, end)); + newCmd = newCmd.substr(end); + if (cmdBuf_numLine >= CON_MAXCMDBUFFER) { Warning("console command buffer overflow"); } else { - cmdBuf_lines[cmdBuf_numLine++] = AllocString(lp); + cmdBuf_lines[cmdBuf_numLine++] = AllocString(lp.c_str()); } - lp = strtok_s(NULL, ";\n", &tk_context); } - FreeString(newCmd); } void console_c::Executef(const char* fmt, ...) { va_list va; - char cmd[4096]; va_start(va, fmt); +#ifdef _WIN32 + char cmd[4096]; vsnprintf_s(cmd, 4095, fmt, va); cmd[4095] = 0; +#else + char* cmd{}; + vasprintf(&cmd, fmt, va); +#endif va_end(va); Execute(cmd); +#ifndef _WIN32 + free(cmd); +#endif } void console_c::ExecCommands(bool deferUnknown) @@ -692,7 +691,7 @@ void console_c::ExecCommands(bool deferUnknown) if (cmd) { if (args.argc < cmd->minArgs + 1) { // Too few arguments - Printf("Usage: %s %s\n", cmd->name, cmd->usage); + Print(fmt::format("Usage: {} {}\n", cmd->name, cmd->usage).c_str()); } else { // We've got arguments, or the command doesn't care (cmd->obj->*cmd->method)(this, args); @@ -703,20 +702,20 @@ void console_c::ExecCommands(bool deferUnknown) if (args.argc >= 2) { // There are arguments, try and set cvar if (cv->flags & CV_READONLY) { - Printf("'%s' is read only.\n", cv->name); + Print(fmt::format("'{}' is read only.\n", cv->name).c_str()); } else { cv->Set(args[1]); } } else { // No arguments, so print current value - Printf("'%s' is: \"%s\" default: \"%s\"\n", cv->name, cv->strVal, cv->defVal); + Print(fmt::format("'{}' is: \"{}\" default: \"{}\"\n", cv->name, cv->strVal, cv->defVal).c_str()); } } else if (deferUnknown) { // Defer execution of unknown commands cmdBuf_lines[numDefer++] = cmdBuf_lines[l]; continue; } else { - Printf("Unknown command '%s'\n", args[0]); + Print(fmt::format("Unknown command '{}'\n", args[0]).c_str()); } } FreeString(cmdBuf_lines[l]); @@ -782,27 +781,26 @@ void conInputHandler_c::ConInputKeyEvent(int key, int type) // Tab completes or finds matches for input buffer text case KEY_TAB: if (_con->input.len) { - char comp[1024]; - strcpy_s(comp, 1024, _con->input.buf); - int compLen = (int)strlen(comp); + std::string comp = _con->input.buf; + int compLen = comp.size(); // Build match list int num = 0; - char* match[CON_MAXMATCH]; - char args[CON_MAXMATCH][256]; + std::string match[CON_MAXMATCH]; + std::string args[CON_MAXMATCH]; for (int slot = 0; slot < CON_MAXCMD; slot++) { conCmd_c* cmd = _con->cmdList[slot]; - if (cmd && _strnicmp(cmd->name, comp, compLen) == 0) { + if (cmd && _strnicmp(cmd->name.c_str(), comp.c_str(), comp.size()) == 0) { match[num] = cmd->name; - strcpy_s(args[num], 256, cmd->usage); + args[num] = cmd->usage; num++; } } for (int slot = 0; slot < CON_MAXCVAR; slot++) { conVar_c* cv = _con->cvarList[slot]; - if (cv && _strnicmp(cv->name, comp, compLen) == 0) { + if (cv && _strnicmp(cv->name.c_str(), comp.c_str(), comp.size()) == 0) { match[num] = cv->name; - sprintf_s(args[num], 256, "= \"%s\"", cv->strVal); + args[num] = fmt::format("= \"{}\"", cv->strVal); num++; } } @@ -811,23 +809,26 @@ void conInputHandler_c::ConInputKeyEvent(int key, int type) // Matches were found if (num == 1) { // Exact match - strcpy_s(comp, 1024, match[0]); - if (*args[0]) { - strcat_s(comp, 1024, " "); + comp = match[0]; + if (!args[0].empty()) { + comp += " "; } } else { + size_t minMatchLen = ~0; // Multiple matches, print them out - _con->Printf("]%s\n", comp); + _con->Print(fmt::format("]{}\n", comp).c_str()); for (int m = 0; m < num; m++) { - _con->Printf(" %s %s\n", match[m], args[m]); + _con->Print(fmt::format(" {} {}\n", match[m], args[m]).c_str()); + minMatchLen = (std::min)(minMatchLen, match[m].size()); } // Try to refine comparison string - while (compLen < 1024) { - char c = match[0][compLen]; + comp.clear(); + for (size_t compIdx = 0; compIdx < minMatchLen; ++compIdx) { + char c = match[0][compIdx]; bool fail = false; for (int m = 1; m < num; m++) { - if (match[m][compLen] != c) { + if (match[m][compIdx] != c) { fail = true; break; } @@ -835,13 +836,12 @@ void conInputHandler_c::ConInputKeyEvent(int key, int type) if (fail) { break; } - comp[compLen++] = c; + comp += c; } - comp[compLen] = 0; } // Copy comparison string back into input buffer - _con->input = comp; + _con->input = comp.c_str(); RefreshConInput(); } } diff --git a/engine/common/console.h b/engine/common/console.h index 28bcf83..d3e368c 100644 --- a/engine/common/console.h +++ b/engine/common/console.h @@ -4,6 +4,9 @@ // Console Header // +#include +#include + // ======= // Classes // ======= @@ -40,15 +43,15 @@ enum conVarFlags_e { // Cvar class conVar_c { public: - char* name = nullptr; // Cvar name + std::string name; // Cvar name int flags = 0; // Flags bool mod = false; // Modified? int intVal = 0; // Integer value float floatVal = 0.f; // Float value - char* strVal = nullptr; // String value + std::string strVal; // String value - char* defVal = nullptr; // Default string + std::string defVal; // Default string int min = 0, max = 0; // Clamp limits conVar_c(IConsole* conHnd); @@ -56,9 +59,8 @@ class conVar_c { void Set(int val); void Set(float val); - void Set(const char* val); + void Set(char const* val); void Toggle(); - int Get(char* out = NULL, int outSz = 0); bool GetMod(); // Return and clear modified flag void Reset(); void Clamp(); @@ -99,16 +101,11 @@ class conCmdHandler_c: public conCmdHandlerA_c, public conCmdHandlerB_c { // Command class struct conCmd_c { - char* name; // Command name + std::string name; // Command name int minArgs;// Required number of arguments - char* usage; // Usage string + std::string usage; // Usage string conCmdHandler_c* obj; // Handler conCmdMethod_t method; // Method - ~conCmd_c() - { - FreeString(name); - FreeString(usage); - } }; // ========== @@ -134,8 +131,8 @@ class IConsole { virtual void Executef(const char* fmt, ...) = 0; // Execute formatted string virtual void ExecCommands(bool deferUnknown = false) = 0; // Flush command buffer - virtual conVar_c* Cvar_Add(const char* name, int flags, const char* def, int minVal = 0, int maxVal = 0) = 0; // Add a variable - virtual conVar_c* Cvar_Ptr(const char* name) = 0; // Get pointer to an existing variable + virtual conVar_c* Cvar_Add(std::string_view name, int flags, std::string_view def, int minVal = 0, int maxVal = 0) = 0; // Add a variable + virtual conVar_c* Cvar_Ptr(std::string_view name) = 0; // Get pointer to an existing variable virtual conCmd_c* EnumCmd(int* index) = 0; // Retrieve commands virtual conVar_c* EnumCvar(int* index) = 0; // Retrieve variables diff --git a/engine/common/streams.cpp b/engine/common/streams.cpp index ef31fb4..6274143 100644 --- a/engine/common/streams.cpp +++ b/engine/common/streams.cpp @@ -212,7 +212,14 @@ fileStreamBase_c::~fileStreamBase_c() size_t fileStreamBase_c::GetLen() { - return file? _filelength(_fileno(file)) : 0; + if (!file) { + return 0; + } + auto pos = ftell(file); + fseek(file, 0, SEEK_END); + auto size = ftell(file); + fseek(file, pos, SEEK_SET); + return size; } size_t fileStreamBase_c::GetPos() diff --git a/engine/core/core_config.cpp b/engine/core/core_config.cpp index 0b4795a..4618d4f 100644 --- a/engine/core/core_config.cpp +++ b/engine/core/core_config.cpp @@ -9,6 +9,8 @@ #include "core_config.h" +#include + // ======================= // core_IConfig Interface // ======================= @@ -104,7 +106,7 @@ void core_config_c::C_CmdList(IConsole* conHnd, args_c &args) { int index = -1; while (conCmd_c* cmd = conHnd->EnumCmd(&index)) { - conHnd->Printf(" %s %s\n", cmd->name, cmd->usage); + conHnd->Print(fmt::format(" {} {}\n", cmd->name, cmd->usage).c_str()); } } @@ -112,7 +114,7 @@ void core_config_c::C_CvarList(IConsole* conHnd, args_c &args) { int index = -1; while (conVar_c* cv = conHnd->EnumCvar(&index)) { - conHnd->Printf("%c%c%c %s = \"%s\"\n", cv->flags & CV_ARCHIVE? 'A':' ', cv->flags & CV_READONLY? 'R':' ', cv->flags & CV_CLAMP? 'C':' ', cv->name, cv->strVal); + conHnd->Print(fmt::format("{}{}{} {} = \"{}\"\n", cv->flags & CV_ARCHIVE? 'A':' ', cv->flags & CV_READONLY? 'R':' ', cv->flags & CV_CLAMP? 'C':' ', cv->name, cv->strVal).c_str()); } } @@ -153,17 +155,16 @@ void core_config_c::C_MemReport(IConsole* conHnd, args_c &args) bool core_config_c::LoadConfig(const char* cfgName) { // Make sure it has .cfg extension - char fileName[260]; - strcpy_s(fileName, 260, cfgName); - if (strchr(fileName, '.') == NULL) { - strcat_s(fileName, 260, ".cfg"); + std::string fileName = cfgName; + if (fileName.find('.') == fileName.npos) { + fileName += ".cfg"; } - sys->con->Printf("Executing %s\n", fileName); + sys->con->Print(fmt::format("Executing {}\n", fileName).c_str()); // Read the config file fileInputStream_c f; - if (f.FileOpen(fileName, true)) { + if (f.FileOpen(fileName.c_str(), true)) { sys->con->Warning("config file not found"); return true; } @@ -200,17 +201,16 @@ bool core_config_c::LoadConfig(const char* cfgName) bool core_config_c::SaveConfig(const char* cfgName) { // Make sure it has .cfg extension - char fileName[260]; - strcpy_s(fileName, 260, cfgName); - if (strchr(fileName, '.') == NULL) { - strcat_s(fileName, 260, ".cfg"); + std::string fileName = cfgName; + if (fileName.find('.') == fileName.npos) { + fileName += ".cfg"; } - sys->con->Printf("Saving %s\n", fileName); + sys->con->Print(fmt::format("Saving {}\n", fileName).c_str()); // Open the config file fileOutputStream_c f; - if (f.FileOpen(fileName, false)) { + if (f.FileOpen(fileName.c_str(), false)) { sys->con->Warning("couldnt write config file"); return true; } @@ -219,7 +219,7 @@ bool core_config_c::SaveConfig(const char* cfgName) int index = -1; while (conVar_c* cv = sys->con->EnumCvar(&index)) { if (cv->flags & CV_ARCHIVE) { - f.FilePrintf("set %s \"%s\"\n", cv->name, cv->strVal); + f.FilePrintf("set %s \"%s\"\n", cv->name.c_str(), cv->strVal.c_str()); } } diff --git a/engine/core/core_image.cpp b/engine/core/core_image.cpp index 8e097b6..0e18bfb 100644 --- a/engine/core/core_image.cpp +++ b/engine/core/core_image.cpp @@ -8,9 +8,14 @@ #include "core_image.h" -#include -#include -#include +#define STB_IMAGE_IMPLEMENTATION +#include "stb_image.h" + +#define STB_IMAGE_WRITE_IMPLEMENTATION +#include "stb_image_write.h" + +#include +#include // ======= // Classes @@ -149,8 +154,8 @@ bool targa_c::Load(const char* fileName) // Try to match image type int ittable[3][3] = { 3, 8, IMGTYPE_GRAY, - 2, 24, IMGTYPE_BGR, - 2, 32, IMGTYPE_BGRA + 2, 24, IMGTYPE_RGB, + 2, 32, IMGTYPE_RGBA }; int it_m; for (it_m = 0; it_m < 3; it_m++) { @@ -204,117 +209,20 @@ bool targa_c::Load(const char* fileName) } } + // Byteswap BGR(A) to RGB(A) + if (comp == 3 || comp == 4) { + uint8_t* p = dat; + for (size_t i = 0; i < width * height; ++i, p += comp) { + std::swap(p[0], p[2]); + } + } + return false; } bool targa_c::Save(const char* fileName) { - // Find a suitable image type - int ittable[3][3] = { - 1, IMGTYPE_GRAY, 3, - 3, IMGTYPE_BGR, 2, - 4, IMGTYPE_BGRA, 2 - }; - int it_m; - for (it_m = 0; it_m < 3; it_m++) { - if (ittable[it_m][0] == comp && ittable[it_m][1] == type) break; - } - if (it_m == 3) { - // Image type not supported - return true; - } - - // Open the file - fileOutputStream_c out; - if (out.FileOpen(fileName, true)) { - return true; - } - - // Write header - tgaHeader_s hdr; - memset(&hdr, 0, sizeof(hdr)); - hdr.width = width; - hdr.height = height; - hdr.depth = comp << 3; - hdr.imgType = ittable[it_m][2] + rle * 8; - out.TWrite(hdr); - - // Write image - dword rowSize = width * comp; - if (rle) { - byte* packet = new byte[comp * 128 + 4]; - dword mask = 0xFFFFFFFF >> ((4 - comp) << 3); - for (int y = height - 1; y >= 0; y--) { - byte* p = dat + y * rowSize; - byte hdr = 255; - dword lastPix; - memOutputStream_c line(512); - for (dword x = 0; x < width; x++, p+= comp) { - dword pix = *(dword*)p & mask; - if (hdr == 255) { - // Start new packet - *(dword*)packet = pix; - hdr = 0; - } else if (hdr & 0x80) { - // Run-length packet, check for continuance - if (pix == lastPix) { - hdr++; - if (hdr == 255) { - // Max length, write it - line.TWrite(hdr); - line.Write(packet, comp); - } - } else { - line.TWrite(hdr); - line.Write(packet, comp); - *(dword*)packet = pix; - hdr = 0; - } - } else if (hdr) { - // Raw packet, check if a run-length packet could be created with the last pixel - if (pix == lastPix) { - hdr--; - line.TWrite(hdr); - line.Write(packet, comp * (hdr + 1)); - *(dword*)packet = pix; - hdr = 129; - } else if (hdr == 127) { - // Packet is already full, write it - line.TWrite(hdr); - line.Write(packet, comp * (hdr + 1)); - *(dword*)packet = pix; - hdr = 0; - } else { - hdr++; - *(dword*)(packet + comp * hdr) = pix; - } - } else { - // New packet, check if this could become a run-length packet - if (pix == lastPix) { - hdr = 129; - } else { - hdr = 1; - *(dword*)(packet + comp) = pix; - } - } - lastPix = pix; - } - if (hdr < 255) { - // Leftover packet, write it - line.TWrite(hdr); - line.Write(packet, hdr & 0x80? comp : comp * (hdr + 1)); - } - line.MemOutput(&out); - } - delete[] packet; - } else { - // Raw - for (int y = height - 1; y >= 0; y--) { - out.Write(dat + y * rowSize, rowSize); - } - } - - return false; + return true; } bool targa_c::ImageInfo(const char* fileName, imageInfo_s* info) @@ -351,80 +259,6 @@ bool targa_c::ImageInfo(const char* fileName, imageInfo_s* info) // JPEG Image // ========== -struct jpegError_s: public jpeg_error_mgr { - jpegError_s() - { - jpeg_std_error(this); - output_message = MSGOut; - error_exit = FatalError; - } - static void MSGOut(j_common_ptr cinfo) - { - char buffer[JMSG_LENGTH_MAX]; - (*cinfo->err->format_message)(cinfo, buffer); - clientData_s* cd = (clientData_s*)cinfo->client_data; - cd->con->Warning("JPEG '%s': %s", cd->fileName, buffer); - } - static void FatalError(j_common_ptr cinfo) - { - MSGOut(cinfo); - throw 1; - } -}; - -// JPEG Reading - -struct jpegRead_s: public jpeg_source_mgr { - ioStream_c* in = nullptr; - byte buffer[1024] = {}; - jpegRead_s(ioStream_c* in) - : in(in) - { - init_source = Init; - term_source = Term; - fill_input_buffer = Fill; - skip_input_data = SkipInput; - resync_to_restart = jpeg_resync_to_restart; - } - static void Init(j_decompress_ptr jdecomp) - { - jpegRead_s* jr = (jpegRead_s*)jdecomp->src; - jr->next_input_byte = jr->buffer; - jr->bytes_in_buffer = 0; - } - static void Term(j_decompress_ptr jdecomp) - { - } - static boolean Fill(j_decompress_ptr jdecomp) - { - static unsigned char dummyEOI[2] = {0xFF, JPEG_EOI}; - jpegRead_s* jr = (jpegRead_s*)jdecomp->src; - size_t avail = jr->in->GetLen() - jr->in->GetPos(); - if (avail) { - jr->next_input_byte = jr->buffer; - jr->bytes_in_buffer = __min(avail, 1024); - jr->in->Read(jr->buffer, jr->bytes_in_buffer); - } else { - jr->next_input_byte = dummyEOI; - jr->bytes_in_buffer = 2; - } - return true; - } - static void SkipInput(j_decompress_ptr jdecomp, long count) - { - jpegRead_s* jr = (jpegRead_s*)jdecomp->src; - while (count > 0) { - if (jr->bytes_in_buffer == 0) { - Fill(jdecomp); - } - long skip = __min(count, (long)jr->bytes_in_buffer); - jr->next_input_byte+= skip; - jr->bytes_in_buffer-= skip; - count-= skip; - } - } -}; - bool jpeg_c::Load(const char* fileName) { Free(); @@ -435,88 +269,33 @@ bool jpeg_c::Load(const char* fileName) return true; } - // Initialise decompressor - jpegError_s jerror; - jpeg_decompress_struct jdecomp; - jdecomp.err = &jerror; - jpeg_create_decompress(&jdecomp); - clientData_s cd; - cd.fileName = fileName; - cd.con = con; - jdecomp.client_data = &cd; - - // Initialise source manager - jpegRead_s src(&in); - jdecomp.src = &src; - - byte** rows = NULL; - try { - // Read header - jpeg_read_header(&jdecomp, true); - width = jdecomp.image_width; - height = jdecomp.image_height; - comp = jdecomp.num_components; - if (comp != 1 && comp != 3) { - con->Warning("JPEG '%s': unsupported component count '%d'", fileName, comp); - jpeg_destroy_decompress(&jdecomp); - return true; - } - type = comp == 1? IMGTYPE_GRAY : IMGTYPE_RGB; - - // Allocate image and generate row pointers - dat = new byte[width * height * comp]; - rows = new byte*[height]; - for (dword r = 0; r < height; r++) { - rows[r] = dat + r * width * comp; - } - - // Decompress - jpeg_start_decompress(&jdecomp); - while (jdecomp.output_scanline < height) { - jpeg_read_scanlines(&jdecomp, rows + jdecomp.output_scanline, height - jdecomp.output_scanline); - } - jpeg_finish_decompress(&jdecomp); - } - catch (...) { - } - delete[] rows; - - jpeg_destroy_decompress(&jdecomp); - return false; -} - -// JPEG Writing - -struct jpegWrite_s: public jpeg_destination_mgr { - ioStream_c* out = nullptr; - byte buffer[1024] = {}; - jpegWrite_s(ioStream_c* out) - : out(out) - { - init_destination = Init; - term_destination = Term; - empty_output_buffer = Empty; + std::vector fileData(in.GetLen()); + if (in.Read(fileData.data(), fileData.size())) { + return true; } - static void Init(j_compress_ptr jcomp) - { - jpegWrite_s* jw = (jpegWrite_s*)jcomp->dest; - jw->next_output_byte = jw->buffer; - jw->free_in_buffer = 1024; + int x, y, in_comp; + if (!stbi_info_from_memory(fileData.data(), fileData.size(), &x, &y, &in_comp)) { + return true; } - static void Term(j_compress_ptr jcomp) - { - jpegWrite_s* jw = (jpegWrite_s*)jcomp->dest; - jw->out->Write(jw->buffer, 1024 - jw->free_in_buffer); + if (in_comp != 1 && in_comp != 3) { + con->Warning("JPEG '%s': unsupported component count '%d'", fileName, comp); + return true; } - static boolean Empty(j_compress_ptr jcomp) - { - jpegWrite_s* jw = (jpegWrite_s*)jcomp->dest; - jw->out->Write(jw->buffer, 1024); - jw->next_output_byte = jw->buffer; - jw->free_in_buffer = 1024; + stbi_uc* data = stbi_load_from_memory(fileData.data(), fileData.size(), &x, &y, &in_comp, in_comp); + if (!data) { + stbi_image_free(data); return true; } -}; + width = x; + height = y; + comp = in_comp; + type = in_comp == 1 ? IMGTYPE_GRAY : IMGTYPE_RGB; + const size_t byteSize = width * height * comp; + dat = new byte[byteSize]; + std::copy_n(data, byteSize, dat); + stbi_image_free(data); + return false; +} bool jpeg_c::Save(const char* fileName) { @@ -531,52 +310,11 @@ bool jpeg_c::Save(const char* fileName) return true; } - // Initialise compressor - jpegError_s jerror; - jpeg_compress_struct jcomp; - jcomp.err = &jerror; - jpeg_create_compress(&jcomp); - clientData_s cd; - cd.fileName = fileName; - cd.con = con; - jcomp.client_data = &cd; - - // Initialise destination manager - jpegWrite_s dst(&out); - jcomp.dest = &dst; - - // Set image parameters - jcomp.image_width = width; - jcomp.image_height = height; - if (type == IMGTYPE_GRAY) { - jcomp.input_components = 1; - jcomp.in_color_space = JCS_GRAYSCALE; - } else { - jcomp.input_components = 3; - jcomp.in_color_space = JCS_RGB; - } - jpeg_set_defaults(&jcomp); - jpeg_set_quality(&jcomp, quality, true); - - // Generate row pointers - byte** rows = new byte*[height]; - for (dword r = 0; r < height; r++) { - rows[r] = dat + r * width * comp; - } - - try { - // Compress - jpeg_start_compress(&jcomp, true); - jpeg_write_scanlines(&jcomp, rows, height); - jpeg_finish_compress(&jcomp); - } - catch (...) { - dst.Term(&jcomp); - } - delete[] rows; - - jpeg_destroy_compress(&jcomp); - return false; + int rc = stbi_write_jpg_to_func([](void* ctx, void* data, int size) { + auto out = (fileOutputStream_c*)ctx; + out->Write(data, size); + }, &out, width, height, comp, dat, quality); + return !rc; } // JPEG Image Info @@ -588,35 +326,21 @@ bool jpeg_c::ImageInfo(const char* fileName, imageInfo_s* info) if (in.FileOpen(fileName, true)) { return true; } - - // Initialise decompressor - jpegError_s jerror; - jpeg_decompress_struct jdecomp; - jdecomp.err = &jerror; - jpeg_create_decompress(&jdecomp); - clientData_s cd; - cd.fileName = fileName; - cd.con = con; - jdecomp.client_data = &cd; - - // Initialise source manager - jpegRead_s src(&in); - jdecomp.src = &src; - - try { - // Read header - jpeg_read_header(&jdecomp, true); + + std::vector fileData(in.GetLen()); + if (in.Read(fileData.data(), fileData.size())) { + return true; } - catch (...) { - jpeg_destroy_decompress(&jdecomp); + int x, y, comp; + if (stbi_info_from_memory(fileData.data(), fileData.size(), &x, &y, &comp)) { return true; } - info->width = jdecomp.image_width; - info->height = jdecomp.image_height; + + info->width = x; + info->height = y; + info->comp = comp; info->alpha = false; - info->comp = jdecomp.num_components; - jpeg_destroy_decompress(&jdecomp); return (comp != 1 && comp != 3); } @@ -624,22 +348,6 @@ bool jpeg_c::ImageInfo(const char* fileName, imageInfo_s* info) // PNG Image // ========= -static void IPNG_ErrorProc(png_structp png, const char* msg) -{ - clientData_s* cd = (clientData_s*)png_get_error_ptr(png); - cd->con->Warning("PNG '%s': %s", cd->fileName, msg); -} - -// PNG Reading - -static void IPNG_ReadProc(png_structp png, png_bytep data, png_size_t len) -{ - ioStream_c* in = (ioStream_c*)png_get_io_ptr(png); - if (in->Read(data, len)) { - png_error(png, "Truncated file"); - } -} - bool png_c::Load(const char* fileName) { Free(); @@ -649,68 +357,31 @@ bool png_c::Load(const char* fileName) if (in.FileOpen(fileName, true)) { return true; } - byte sig[8]; - if (in.Read(sig, 8) || png_sig_cmp(sig, 0, 8)) { - con->Warning("PNG '%s': invalid signature", fileName); + + std::vector fileData(in.GetLen()); + if (in.Read(fileData.data(), fileData.size())) { return true; } - - // Initialise PNG reader - clientData_s cd; - cd.con = con; - cd.fileName = fileName; - png_structp png = png_create_read_struct(PNG_LIBPNG_VER_STRING, &cd, IPNG_ErrorProc, IPNG_ErrorProc); - png_infop info = png_create_info_struct(png); - if (setjmp(png_jmpbuf(png))) { - png_destroy_read_struct(&png, &info, NULL); + int x, y, in_comp; + if (!stbi_info_from_memory(fileData.data(), fileData.size(), &x, &y, &in_comp)) { return true; } - png_set_read_fn(png, &in, IPNG_ReadProc); - - // Read image - png_set_sig_bytes(png, 8); - png_read_png(png, info, PNG_TRANSFORM_GRAY_TO_RGB | PNG_TRANSFORM_SCALE_16, NULL); - - // Copy image data - width = png_get_image_width(png, info); - height = png_get_image_height(png, info); - comp = png_get_channels(png, info); - switch (comp) { - case 3: - type = IMGTYPE_RGB; - break; - case 4: - type = IMGTYPE_RGBA; - break; - default: - con->Warning("PNG '%s': unknown image type %d", fileName, comp); - png_destroy_read_struct(&png, &info, NULL); + width = x; + height = y; + comp = (in_comp == 1 || in_comp == 3) ? 3 : 4; + type = comp == 3 ? IMGTYPE_RGB : IMGTYPE_RGBA; + stbi_uc* data = stbi_load_from_memory(fileData.data(), fileData.size(), &x, &y, &in_comp, comp); + if (!data) { + stbi_image_free(data); return true; - }; - dat = new byte[width * height * comp]; - byte** rows = png_get_rows(png, info); - for (dword y = 0; y < height; y++) { - memcpy(dat + y * width * comp, rows[y], width * comp); } - - png_destroy_read_struct(&png, &info, NULL); + const size_t byteSize = width * height * comp; + dat = new byte[byteSize]; + std::copy_n(data, byteSize, dat); + stbi_image_free(data); return false; } -// PNG Writing - -static void IPNG_WriteProc(png_structp png, png_bytep data, png_size_t len) -{ - fileOutputStream_c* out = (fileOutputStream_c*)png_get_io_ptr(png); - out->Write(data, len); -} - -static void IPNG_FlushProc(png_structp png) -{ - fileOutputStream_c* out = (fileOutputStream_c*)png_get_io_ptr(png); - out->FileFlush(); -} - bool png_c::Save(const char* fileName) { if (type != IMGTYPE_RGB && type != IMGTYPE_RGBA) { @@ -723,30 +394,12 @@ bool png_c::Save(const char* fileName) return true; } - // Initialise PNG writer - clientData_s cd; - cd.fileName = fileName; - cd.con = con; - png_structp png = png_create_write_struct(PNG_LIBPNG_VER_STRING, &cd, IPNG_ErrorProc, IPNG_ErrorProc); - png_infop pnginfo = png_create_info_struct(png); - if (setjmp(png_jmpbuf(png))) { - png_destroy_write_struct(&png, &pnginfo); - return true; - } - png_set_write_fn(png, &out, IPNG_WriteProc, IPNG_FlushProc); - - // Write image - png_set_IHDR(png, pnginfo, width, height, 8, type == IMGTYPE_RGBA? PNG_COLOR_TYPE_RGB_ALPHA : PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT); - byte** rows = new byte*[height]; - for (dword r = 0; r < height; r++) { - rows[r] = dat + r * width * comp; - } - png_set_rows(png, pnginfo, rows); - png_write_png(png, pnginfo, PNG_TRANSFORM_IDENTITY, NULL); - delete[] rows; - - png_destroy_write_struct(&png, &pnginfo); - return false; + auto rc = stbi_write_png_to_func([](void* ctx, void* data, int size) { + auto out = (fileOutputStream_c*)ctx; + out->Write(data, size); + }, &out, width, height, comp, dat, width * comp); + + return !rc; } // PNG Image Info @@ -758,41 +411,20 @@ bool png_c::ImageInfo(const char* fileName, imageInfo_s* info) if (in.FileOpen(fileName, true)) { return true; } - byte sig[8]; - if (in.Read(sig, 8) || png_sig_cmp(sig, 0, 8)) { - return true; - } - // Initialise PNG reader - clientData_s cd; - cd.con = con; - cd.fileName = fileName; - png_structp png = png_create_read_struct(PNG_LIBPNG_VER_STRING, &cd, IPNG_ErrorProc, IPNG_ErrorProc); - png_infop pnginfo = png_create_info_struct(png); - if (setjmp(png_jmpbuf(png))) { - png_destroy_read_struct(&png, &pnginfo, NULL); + std::vector fileData(in.GetLen()); + if (in.Read(fileData.data(), fileData.size())) { return true; } - png_set_read_fn(png, &in, IPNG_ReadProc); - - // Get image info - png_set_sig_bytes(png, 8); - png_read_info(png, pnginfo); - info->width = png_get_image_width(png, pnginfo); - info->height = png_get_image_height(png, pnginfo); - int type = png_get_color_type(png, pnginfo); - png_destroy_read_struct(&png, &pnginfo, NULL); - if (type & PNG_COLOR_MASK_COLOR) { - if (type & PNG_COLOR_MASK_ALPHA) { - info->alpha = true; - info->comp = 4; - } else { - info->alpha = false; - info->comp = 3; - } - } else { + int x, y, comp; + if (stbi_info_from_memory(fileData.data(), fileData.size(), &x, &y, &comp)) { return true; } + + info->width = x; + info->height = y; + info->comp = comp <= 3 ? 3 : comp; + info->alpha = comp == 4; return false; } @@ -800,15 +432,6 @@ bool png_c::ImageInfo(const char* fileName, imageInfo_s* info) // GIF Image // ========= -static int IGIF_ReadProc(GifFileType* gif, GifByteType* buf, int len) -{ - ioStream_c* in = (ioStream_c*)gif->UserData; - if (in->Read(buf, len)) { - return 0; - } - return len; -} - bool gif_c::Load(const char* fileName) { // Open file @@ -817,48 +440,27 @@ bool gif_c::Load(const char* fileName) return true; } - // Initialise GIF reader - int code; - GifFileType* gif = DGifOpen(&in, IGIF_ReadProc, &code); - if ( !gif ) { - con->Warning("'%s': error '%d' opening GIF", fileName, code); - in.FileClose(); - return true; - } - - // Read image - if (DGifSlurp(gif) != GIF_OK) { - con->Warning("'%s': error '%d' reading GIF", fileName, gif->Error); - DGifCloseFile(gif, NULL); - in.FileClose(); - return true; - } - - // Convert image - width = gif->SavedImages[0].ImageDesc.Width; - height = gif->SavedImages[0].ImageDesc.Height; - comp = 4; - type = IMGTYPE_RGBA; - dat = new byte[width * height * comp]; - ColorMapObject* map = gif->SColorMap? gif->SColorMap : gif->SavedImages[0].ImageDesc.ColorMap; - GraphicsControlBlock gcb; - DGifSavedExtensionToGCB(gif, 0, &gcb); - byte* pix = dat; - for (dword p = 0; p < width * height; p++, pix+= 4) { - byte index = gif->SavedImages[0].RasterBits[p]; - if (index == gcb.TransparentColor) { - pix[0] = pix[1] = pix[2] = pix[3] = 0; - } else { - pix[0] = map->Colors[index].Red; - pix[1] = map->Colors[index].Green; - pix[2] = map->Colors[index].Blue; - pix[3] = 255; + { + std::vector fileData(in.GetLen()); + if (in.Read(fileData.data(), fileData.size())) { + return true; } + int x, y, in_comp; + stbi_uc* data = stbi_load_from_memory(fileData.data(), fileData.size(), &x, &y, &in_comp, 4); + if (!data || in_comp != 4) { + stbi_image_free(data); + return true; + } + width = x; + height = y; + comp = in_comp; + type = IMGTYPE_RGBA; + const size_t byteSize = width * height * comp; + dat = new byte[byteSize]; + std::copy_n(data, byteSize, dat); + stbi_image_free(data); + return false; } - - DGifCloseFile(gif, NULL); - in.FileClose(); - return false; } bool gif_c::Save(const char* fileName) diff --git a/engine/core/core_image.h b/engine/core/core_image.h index 54eb4bf..369970c 100644 --- a/engine/core/core_image.h +++ b/engine/core/core_image.h @@ -14,8 +14,6 @@ enum imageType_s { IMGTYPE_GRAY = 0x11, IMGTYPE_RGB = 0x23, IMGTYPE_RGBA = 0x34, - IMGTYPE_BGR = 0x43, - IMGTYPE_BGRA = 0x54, IMGTYPE_RGB_DXT1 = 0x63, IMGTYPE_RGBA_DXT1 = 0x74, IMGTYPE_RGBA_DXT3 = 0x84, diff --git a/engine/core/core_video.cpp b/engine/core/core_video.cpp index f6bfcf1..1100dcb 100644 --- a/engine/core/core_video.cpp +++ b/engine/core/core_video.cpp @@ -9,6 +9,8 @@ #include "core_video.h" +#include + // ====== // Locals // ====== @@ -86,14 +88,12 @@ void core_video_c::Apply(bool shown) sys_vidSet_s set; set.shown = shown; set.flags = 0; - if (vid_fullscreen->intVal) { - set.flags|= VID_FULLSCREEN; - } else if (vid_resizable->intVal) { + if (vid_resizable->intVal) { set.flags|= VID_RESIZABLE; if (vid_resizable->intVal == 2) { set.flags|= VID_MAXIMIZE; } else if (vid_resizable->intVal == 3) { - if (sscanf(vid_last->strVal, "%d,%d,%d,%d,%d", set.save.size + 0, set.save.size + 1, set.save.pos + 0, set.save.pos + 1, (int*)&set.save.maximised) == 5) { + if (sscanf(vid_last->strVal.c_str(), "%d,%d,%d,%d,%d", set.save.size + 0, set.save.size + 1, set.save.pos + 0, set.save.pos + 1, (int*)&set.save.maximised) == 5) { set.flags|= VID_USESAVED; } else { set.flags|= VID_MAXIMIZE; @@ -102,8 +102,8 @@ void core_video_c::Apply(bool shown) } set.display = vid_display->intVal; if (vid_mode->intVal >= 0) { - set.mode[0] = __max(vid_modeList[vid_mode->intVal][0], CFG_VID_MINWIDTH); - set.mode[1] = __max(vid_modeList[vid_mode->intVal][1], CFG_VID_MINHEIGHT); + set.mode[0] = (std::max)(vid_modeList[vid_mode->intVal][0], CFG_VID_MINWIDTH); + set.mode[1] = (std::max)(vid_modeList[vid_mode->intVal][1], CFG_VID_MINHEIGHT); } else { set.mode[0] = 0; set.mode[1] = 0; diff --git a/engine/render.h b/engine/render.h index ea499b7..f7c7362 100644 --- a/engine/render.h +++ b/engine/render.h @@ -30,7 +30,6 @@ enum r_texFlag_e { TF_CLAMP = 0x01, // Clamp texture TF_NOMIPMAP = 0x02, // No mipmaps TF_NEAREST = 0x04, // Use nearest-pixel magnification instead of linear - TF_ASYNC = 0x08 // Asynchronous loading }; // Blend modes diff --git a/engine/render/r_font.cpp b/engine/render/r_font.cpp index b44f2ae..9a60ed9 100644 --- a/engine/render/r_font.cpp +++ b/engine/render/r_font.cpp @@ -6,6 +6,8 @@ #include "r_local.h" +#include +#include #include #include @@ -42,12 +44,10 @@ r_font_c::r_font_c(r_renderer_c* renderer, const char* fontName) numFontHeight = 0; fontHeightMap = NULL; - char fileNameBase[260]; - sprintf_s(fileNameBase, 260, CFG_DATAPATH "fonts/%s", fontName); + std::string fileNameBase = fmt::format(CFG_DATAPATH "fonts/{}", fontName); // Open info file - char tgfName[260]; - sprintf_s(tgfName, 260, "%s.tgf", fileNameBase); + std::string tgfName = fileNameBase + ".tgf"; std::ifstream tgf(tgfName); if (!tgf) { renderer->sys->con->Warning("font \"%s\" not found", fontName); @@ -61,19 +61,18 @@ r_font_c::r_font_c(r_renderer_c* renderer, const char* fontName) std::string sub; while (std::getline(tgf, sub)) { int h, x, y, w, sl, sr; - if (sscanf_s(sub.c_str(), "HEIGHT %u;", &h) == 1) { + if (sscanf(sub.c_str(), "HEIGHT %u;", &h) == 1) { // New height fh = new f_fontHeight_s; fontHeights[numFontHeight++] = fh; - char tgaName[260]; - sprintf_s(tgaName, 260, "%s.%d.tga", fileNameBase, h); - fh->tex = new r_tex_c(renderer->texMan, tgaName, TF_NOMIPMAP); + std::string tgaName = fmt::format("{}.{}.tga", fileNameBase, h); + fh->tex = new r_tex_c(renderer->texMan, tgaName.c_str(), TF_NOMIPMAP); fh->height = h; if (h > maxHeight) { maxHeight = h; } fh->numGlyph = 0; - } else if (fh && sscanf_s(sub.c_str(), "GLYPH %u %u %u %d %d;", &x, &y, &w, &sl, &sr) == 5) { + } else if (fh && sscanf(sub.c_str(), "GLYPH %u %u %u %d %d;", &x, &y, &w, &sl, &sr) == 5) { // Add glyph if (fh->numGlyph >= 128) continue; f_glyph_s* glyph = &fh->glyphs[fh->numGlyph++]; diff --git a/engine/render/r_local.h b/engine/render/r_local.h index d49718b..8eef2f6 100644 --- a/engine/render/r_local.h +++ b/engine/render/r_local.h @@ -9,10 +9,8 @@ #include "render.h" -#define WINGDIAPI -#define APIENTRY __stdcall -#include -#include +#include +#include #include "core/core_image.h" diff --git a/engine/render/r_main.cpp b/engine/render/r_main.cpp index e4fad5d..dad5142 100644 --- a/engine/render/r_main.cpp +++ b/engine/render/r_main.cpp @@ -4,8 +4,14 @@ // Module: Render Main // +#define GLAD_GLES2_IMPLEMENTATION #include "r_local.h" +#include +#include +#include +#include + // ======= // Classes // ======= @@ -24,10 +30,10 @@ enum r_takeScreenshot_e { class r_shader_c { public: r_renderer_c* renderer; - char* name; + char* name; dword nameHash; int refCount; - r_tex_c* tex; + r_tex_c* tex; r_shader_c(r_renderer_c* renderer, const char* shname, int flags); r_shader_c(r_renderer_c* renderer, const char* shname, int flags, int width, int height, int type, byte* dat); @@ -86,6 +92,28 @@ r_shaderHnd_c::~r_shaderHnd_c() } } +struct Mat4 { + float m[16]; + + float const* data() const{ + return m; + } +}; + +Mat4 OrthoMatrix(double left, double right, double bottom, double top, double nearVal, double farVal) +{ + Mat4 ret; + std::fill_n(ret.m, 16, 0.0f); + ret.m[0] = (float)(2.0f / (right - left)); + ret.m[5] = (float)(2.0f / (top - bottom)); + ret.m[10] = (float)(-2.0f / (farVal - nearVal)); + ret.m[12] = (float)-((right + left) / (right - left)); + ret.m[13] = (float)-((top + bottom) / (top - bottom)); + ret.m[14] = (float)-((farVal + nearVal) / (farVal - nearVal)); + ret.m[15] = 1.0f; + return ret; +} + // ================= // Layer queue class // ================= @@ -117,7 +145,7 @@ r_layer_c::r_layer_c(r_renderer_c* renderer, int layer, int subLayer) { numCmd = 0; cmdSize = 8; - cmdList = new r_layerCmd_s*[cmdSize]; + cmdList = new r_layerCmd_s * [cmdSize]; } r_layer_c::~r_layer_c() @@ -134,7 +162,7 @@ r_layerCmd_s* r_layer_c::NewCommand() cmd = new r_layerCmd_s; } if (numCmd == cmdSize) { - cmdSize<<= 1; + cmdSize <<= 1; trealloc(cmdList, cmdSize); } cmdList[numCmd++] = cmd; @@ -182,64 +210,241 @@ void r_layer_c::Quad(double s0, double t0, double x0, double y0, double s1, doub cmd->quad.y[0] = y0; cmd->quad.y[1] = y1; cmd->quad.y[2] = y2; cmd->quad.y[3] = y3; } +struct Vertex { + float x, y; + float u, v; + float r, g, b, a; +}; + +struct Batch { + explicit Batch(GLuint prog); + Batch(Batch&& rhs); + Batch& operator = (Batch&& rhs); + Batch(Batch const&) = delete; + Batch& operator = (Batch const&) = delete; + ~Batch(); + + GLuint prog; + GLint xyAttr; + GLint uvAttr; + GLint tintAttr; + + GLuint vbo; + std::vector vertices; + + void Execute(); +}; + +Batch::Batch(GLuint prog) + : prog(prog) +{ + xyAttr = glGetAttribLocation(prog, "a_vertex"); + uvAttr = glGetAttribLocation(prog, "a_texcoord"); + tintAttr = glGetAttribLocation(prog, "a_tint"); + glGenBuffers(1, &vbo); +} + +Batch::Batch(Batch&& rhs) + : prog(rhs.prog) + , xyAttr(rhs.xyAttr) + , uvAttr(rhs.uvAttr) + , tintAttr(rhs.tintAttr) + , vbo(rhs.vbo) + , vertices(std::move(rhs.vertices)) +{ + rhs.vbo = 0; +} + +Batch& Batch::operator = (Batch&& rhs) { + prog = rhs.prog; + xyAttr = rhs.xyAttr; + uvAttr = rhs.uvAttr; + tintAttr = rhs.tintAttr; + vbo = rhs.vbo; + vertices = std::move(rhs.vertices); + rhs.vbo = 0; + + return *this; +} + +Batch::~Batch() { + if (vbo) { + glDeleteBuffers(1, &vbo); + } +} + +void Batch::Execute() +{ + if (vertices.empty()) { + return; + } + + glBindBuffer(GL_ARRAY_BUFFER, vbo); + glBufferData(GL_ARRAY_BUFFER, vertices.size() * sizeof(Vertex), vertices.data(), GL_STREAM_DRAW); + glVertexAttribPointer(xyAttr, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void const*)offsetof(Vertex, x)); + glVertexAttribPointer(uvAttr, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void const*)offsetof(Vertex, u)); + glVertexAttribPointer(tintAttr, 4, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void const*)offsetof(Vertex, r)); + glEnableVertexAttribArray(xyAttr); + glEnableVertexAttribArray(uvAttr); + glEnableVertexAttribArray(tintAttr); + glDrawArrays(GL_TRIANGLES, 0, vertices.size()); + glDisableVertexAttribArray(xyAttr); + glDisableVertexAttribArray(uvAttr); + glDisableVertexAttribArray(tintAttr); + glBindBuffer(GL_ARRAY_BUFFER, 0); + vertices.clear(); +} + void r_layer_c::Render() { - r_viewport_s curViewPort = {-1, -1, -1, -1}; - int curBlendMode = -1; - r_tex_c* curTex = NULL; + struct BatchKey { + r_viewport_s viewport = { -1, -1, -1, -1 }; + int blendMode = -1; + r_tex_c* tex = NULL; + + bool operator < (BatchKey const& rhs) const { + if (viewport.x != rhs.viewport.x) { + return viewport.x < rhs.viewport.x; + } + if (viewport.y != rhs.viewport.y) { + return viewport.y < rhs.viewport.y; + } + if (viewport.width != rhs.viewport.width) { + return viewport.width < rhs.viewport.width; + } + if (viewport.height != rhs.viewport.height) { + return viewport.height < rhs.viewport.height; + } + if (blendMode != rhs.blendMode) { + return blendMode < rhs.blendMode; + } + return std::less{}(tex, rhs.tex); + } + }; + + if (renderer->glPushGroupMarkerEXT) + { + std::ostringstream oss; + oss << "Layer " << layer << ", sub-layer " << subLayer; + renderer->glPushGroupMarkerEXT(0, oss.str().c_str()); + } + BatchKey currentKey{}; + GLuint prog = renderer->tintedTextureProgram; + float tint[4] = { 1.0f, 1.0f, 1.0f, 1.0f }; + glUseProgram(prog); + { + GLint texLoc = glGetUniformLocation(prog, "t_tex"); + glUniform1i(texLoc, 0); + } + + std::vector batches; + std::vector batchKeys; + std::map batchIndices; + for (int i = 0; i < numCmd; i++) { r_layerCmd_s* cmd = cmdList[i]; switch (cmd->cmd) { case r_layerCmd_s::VIEWPORT: - if (cmd->viewport.x != curViewPort.x || cmd->viewport.y != curViewPort.y || cmd->viewport.width != curViewPort.width || cmd->viewport.height != curViewPort.height) { - glViewport(cmd->viewport.x, renderer->sys->video->vid.size[1] - cmd->viewport.y - cmd->viewport.height, cmd->viewport.width, cmd->viewport.height); - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - glOrtho(0, (float)cmd->viewport.width, (float)cmd->viewport.height, 0, -9999, 9999); - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - } + currentKey.viewport = cmd->viewport; break; case r_layerCmd_s::BLEND: - if (cmd->blendMode != curBlendMode) { - switch (cmd->blendMode) { - case RB_ALPHA: - glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); - break; - case RB_PRE_ALPHA: - glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); - break; - case RB_ADDITIVE: - glBlendFunc(GL_ONE, GL_ONE); - break; - } - } + currentKey.blendMode = cmd->blendMode; break; case r_layerCmd_s::BIND: - if (cmd->tex != curTex) { - cmd->tex->Bind(); - curTex = cmd->tex; - } + currentKey.tex = cmd->tex; break; - case r_layerCmd_s::QUAD: - glBegin(GL_TRIANGLE_FAN); + case r_layerCmd_s::QUAD: { + Batch* batch{}; + auto I = batchIndices.find(currentKey); + if (I != batchIndices.end()) { + batch = &batches[I->second]; + } + else { + batchIndices.insert(I, { currentKey, batches.size() }); + batchKeys.push_back(currentKey); + batches.emplace_back(prog); + batch = &batches.back(); + } + Vertex quad[4]; for (int v = 0; v < 4; v++) { - glTexCoord2d(cmd->quad.s[v], cmd->quad.t[v]); - glVertex2d(cmd->quad.x[v], cmd->quad.y[v]); + quad[v].u = (float)cmd->quad.s[v]; + quad[v].v = (float)cmd->quad.t[v]; + quad[v].x = (float)cmd->quad.x[v]; + quad[v].y = (float)cmd->quad.y[v]; + quad[v].r = tint[0]; + quad[v].g = tint[1]; + quad[v].b = tint[2]; + quad[v].a = tint[3]; } - glEnd(); - break; + // 3-2 + // |/| + // 0-1 + size_t indices[] = { 0, 1, 2, 0, 2, 3 }; + for (auto idx : indices) { + batch->vertices.push_back(quad[idx]); + } + } break; case r_layerCmd_s::COLOR: - glColor4fv(cmd->col); + std::copy_n(cmd->col, 4, tint); break; } + } + + std::optional lastKey{}; + int const numBatches = batches.size(); + for (int i = 0; i < numBatches; ++i) { + auto& batch = batches[i]; + auto& key = batchKeys[i]; + if (!lastKey || lastKey->viewport.x != key.viewport.x || lastKey->viewport.y != key.viewport.y || + lastKey->viewport.width != key.viewport.width || lastKey->viewport.height != key.viewport.height) + { + auto& vid = renderer->sys->video->vid; + float fbScaleX = vid.fbSize[0] / (float)vid.size[0]; + float fbScaleY = vid.fbSize[1] / (float)vid.size[1]; + float x = key.viewport.x * fbScaleX; + float y = (vid.size[1] - key.viewport.y - key.viewport.height) * fbScaleY; + float width = key.viewport.width * fbScaleX; + float height = key.viewport.height * fbScaleY; + glViewport((int)x, (int)y, (int)width, (int)height); + Mat4 mvpMatrix = OrthoMatrix(0, key.viewport.width, key.viewport.height, 0, -9999, 9999); + GLint mvpMatrixLoc = glGetUniformLocation(prog, "mvp_matrix"); + glUniformMatrix4fv(mvpMatrixLoc, 1, GL_FALSE, mvpMatrix.data()); + } + if (!lastKey || lastKey->blendMode != key.blendMode) { + switch (key.blendMode) { + case RB_ALPHA: + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + break; + case RB_PRE_ALPHA: + glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); + break; + case RB_ADDITIVE: + glBlendFunc(GL_ONE, GL_ONE); + break; + } + } + if (!lastKey || lastKey->tex != key.tex) { + key.tex->Bind(); + } + + batch.Execute(); + + lastKey = key; + } + glUseProgram(0); + + for (int i = 0; i < numCmd; i++) { + r_layerCmd_s* cmd = cmdList[i]; if (renderer->layerCmdBinCount == renderer->layerCmdBinSize) { - renderer->layerCmdBinSize<<= 1; + renderer->layerCmdBinSize <<= 1; trealloc(renderer->layerCmdBin, renderer->layerCmdBinSize); } renderer->layerCmdBin[renderer->layerCmdBinCount++] = cmd; } numCmd = 0; + if (renderer->glPopGroupMarkerEXT) { + renderer->glPopGroupMarkerEXT(); + } } // ===================== @@ -266,6 +471,73 @@ r_renderer_c::r_renderer_c(sys_IMain* sysHnd) Cmd_Add("screenshot", 0, "[]", this, &r_renderer_c::C_Screenshot); } +static bool GetShaderCompileSuccess(GLuint id) +{ + GLint success{}; + glGetShaderiv(id, GL_COMPILE_STATUS, &success); + return success == GL_TRUE; +} + +static std::string GetShaderInfoLog(GLuint id) +{ + GLint len{}; + glGetShaderiv(id, GL_INFO_LOG_LENGTH, &len); + std::vector msg(len); + glGetShaderInfoLog(id, msg.size(), &len, msg.data()); + return std::string(msg.data(), msg.data() + len); +} + +static bool GetProgramLinkSuccess(GLuint id) +{ + GLint success{}; + glGetProgramiv(id, GL_LINK_STATUS, &success); + return success == GL_TRUE; +} + +static std::string GetProgramInfoLog(GLuint id) +{ + GLint len{}; + glGetProgramiv(id, GL_INFO_LOG_LENGTH, &len); + std::vector msg(len); + glGetProgramInfoLog(id, msg.size(), &len, msg.data()); + return std::string(msg.data(), msg.data() + len); +} + +static char const* s_tintedTextureVertexSource = R"(#version 100 + +uniform mat4 mvp_matrix; + +attribute vec2 a_vertex; +attribute vec2 a_texcoord; +attribute vec4 a_tint; + +varying vec2 v_texcoord; +varying vec4 v_tint; + +void main(void) +{ + v_texcoord = a_texcoord; + v_tint = a_tint; + gl_Position = mvp_matrix * vec4(a_vertex, 0.0, 1.0); +} +)"; + +static char const* s_tintedTextureFragmentSource = R"(#version 100 +precision mediump float; + +uniform sampler2D t_tex; +uniform vec4 i_tint; + +varying vec2 v_texcoord; +varying vec4 v_tint; + +void main(void) +{ + vec4 color = texture2D(t_tex, v_texcoord); + gl_FragColor = color * v_tint; +} +)"; + // ============= // Init/Shutdown // ============= @@ -308,20 +580,28 @@ void r_renderer_c::Init() if (strstr(st_ext, "GL_EXT_texture_compression_s3tc")) { sys->con->Printf("using GL_EXT_texture_compression_s3tc\n"); - glCompressedTexImage2DARB = (PFNGLCOMPRESSEDTEXIMAGE2DARBPROC)openGL->GetProc("glCompressedTexImage2DARB"); - } else { + glCompressedTexImage2D = (PFNGLCOMPRESSEDTEXIMAGE2DPROC)openGL->GetProc("glCompressedTexImage2D"); + } + else { sys->con->Printf("GL_EXT_texture_compression_s3tc not supported\n"); - glCompressedTexImage2DARB = NULL; + glCompressedTexImage2D = NULL; } - if (strstr(st_ext, "GL_ARB_texture_non_power_of_two")) { - sys->con->Printf("using GL_ARB_texture_non_power_of_two\n"); - texNonPOT = true; - } else { - sys->con->Printf("GL_ARB_texture_non_power_of_two not supported\n"); - texNonPOT = false; + if (strstr(st_ext, "GL_EXT_debug_marker")) { + sys->con->Printf("using GL_EXT_debug_marker\n"); + glInsertEventMarkerEXT = (PFNGLINSERTEVENTMARKEREXTPROC)openGL->GetProc("glInsertEventMarkerEXT"); + glPushGroupMarkerEXT = (PFNGLPUSHGROUPMARKEREXTPROC)openGL->GetProc("glPushGroupMarkerEXT"); + glPopGroupMarkerEXT = (PFNGLPOPGROUPMARKEREXTPROC)openGL->GetProc("glPopGroupMarkerEXT"); + } + else { + sys->con->Printf("GL_EXT_debug_marker not supported\n"); + glInsertEventMarkerEXT = NULL; + glPushGroupMarkerEXT = NULL; + glPopGroupMarkerEXT = NULL; } + texNonPOT = true; + // Initialise texture manager texMan = r_ITexManager::GetHandle(this); @@ -329,16 +609,47 @@ void r_renderer_c::Init() numShader = 0; memset(shaderList, 0, sizeof(shaderList)); + // Initialise vertex programs + { + GLint success = GL_FALSE; + GLuint prog = glCreateProgram(); + GLuint vs = glCreateShader(GL_VERTEX_SHADER); + glShaderSource(vs, 1, &s_tintedTextureVertexSource, nullptr); + glCompileShader(vs); + if (!GetShaderCompileSuccess(vs)) { + std::string log = GetShaderInfoLog(vs); + sys->Error("Failed to compile vertex shader:\n%s", log.c_str()); + } + GLuint fs = glCreateShader(GL_FRAGMENT_SHADER); + glShaderSource(fs, 1, &s_tintedTextureFragmentSource, nullptr); + glCompileShader(fs); + if (!GetShaderCompileSuccess(fs)) { + std::string log = GetShaderInfoLog(fs); + sys->Error("Failed to compile fragment shader:\n%s", log.c_str()); + } + + glAttachShader(prog, vs); + glAttachShader(prog, fs); + glLinkProgram(prog); + if (!GetProgramLinkSuccess(prog)) { + std::string log = GetProgramInfoLog(prog); + sys->Error("Failed to link program:\n%s", log.c_str()); + } + glDeleteShader(vs); + glDeleteShader(fs); + tintedTextureProgram = prog; + } + // Initialise layer array numLayer = 1; layerListSize = 16; - layerList = new r_layer_c*[layerListSize]; + layerList = new r_layer_c * [layerListSize]; layerList[0] = new r_layer_c(this, 0, 0); // Initialise layer command bin layerCmdBinCount = 0; layerCmdBinSize = 1024; - layerCmdBin = new r_layerCmd_s*[layerCmdBinSize]; + layerCmdBin = new r_layerCmd_s * [layerCmdBinSize]; takeScreenshot = R_SSNONE; @@ -421,7 +732,7 @@ static int layerCompFunc(const void* va, const void* vb) void r_renderer_c::EndFrame() { - r_layer_c** layerSort = new r_layer_c*[numLayer]; + r_layer_c** layerSort = new r_layer_c * [numLayer]; for (int l = 0; l < numLayer; l++) { layerSort[l] = layerList[l]; } @@ -429,13 +740,13 @@ void r_renderer_c::EndFrame() if (r_layerDebug->intVal) { int totalCmd = 0; for (int l = 0; l < numLayer; l++) { - totalCmd+= layerSort[l]->numCmd; + totalCmd += layerSort[l]->numCmd; char str[1024]; sprintf(str, "%d (%4d,%4d) [%2d]", layerSort[l]->numCmd, layerSort[l]->layer, layerSort[l]->subLayer, l); float w = (float)DrawStringWidth(16, F_FIXED, str); DrawColor(0x7F000000); - DrawImage(NULL, (float)sys->video->vid.size[0] - w, sys->video->vid.size[1] - (l + 2)*16.0f, w, 16); - DrawStringFormat(0, sys->video->vid.size[1] - (l + 2)*16.0f, F_RIGHT, 16, colorWhite, F_FIXED, str); + DrawImage(NULL, (float)sys->video->vid.size[0] - w, sys->video->vid.size[1] - (l + 2) * 16.0f, w, 16); + DrawStringFormat(0, sys->video->vid.size[1] - (l + 2) * 16.0f, F_RIGHT, 16, colorWhite, F_FIXED, str); } char str[1024]; sprintf(str, "%d", totalCmd); @@ -457,26 +768,26 @@ void r_renderer_c::EndFrame() // Take screenshot switch (takeScreenshot) { case R_SSTGA: - { - targa_c i(sys->con); - i.type = IMGTYPE_BGR; - DoScreenshot(&i, "tga"); - } - break; + { + targa_c i(sys->con); + i.type = IMGTYPE_RGB; + DoScreenshot(&i, "tga"); + } + break; case R_SSJPEG: - { - jpeg_c i(sys->con); - i.type = IMGTYPE_RGB; - DoScreenshot(&i, "jpg"); - } - break; + { + jpeg_c i(sys->con); + i.type = IMGTYPE_RGB; + DoScreenshot(&i, "jpg"); + } + break; case R_SSPNG: - { - png_c i(sys->con); - i.type = IMGTYPE_RGB; - DoScreenshot(&i, "png"); - } - break; + { + png_c i(sys->con); + i.type = IMGTYPE_RGB; + DoScreenshot(&i, "png"); + } + break; } takeScreenshot = R_SSNONE; @@ -507,17 +818,12 @@ r_shaderHnd_c* r_renderer_c::RegisterShader(const char* shname, int flags) dword nameHash = StringHash(shname, 0xFFFF); int newId = -1; for (int s = 0; s < numShader; s++) { - if ( !shaderList[s] ) { + if (!shaderList[s]) { newId = s; - } else if (shaderList[s]->nameHash == nameHash && _stricmp(shname, shaderList[s]->name) == 0 && (shaderList[s]->tex->flags & ~TF_ASYNC) == (flags & ~TF_ASYNC)) { + } else if (shaderList[s]->nameHash == nameHash && _stricmp(shname, shaderList[s]->name) == 0 && shaderList[s]->tex->flags == flags) { // Shader already exists, return a new handle for it - if (flags & TF_ASYNC) { - // Ensure texture will be loaded sometime - shaderList[s]->tex->StartLoad(); - } else { - // Ensure texture is loaded as soon as possible - shaderList[s]->tex->ForceLoad(); - } + // Ensure texture is loaded as soon as possible + shaderList[s]->tex->ForceLoad(); return new r_shaderHnd_c(shaderList[s]); } } @@ -536,7 +842,7 @@ r_shaderHnd_c* r_renderer_c::RegisterShaderFromData(int width, int height, int t { int newId = -1; for (int s = 0; s < numShader; s++) { - if ( !shaderList[s] ) { + if (!shaderList[s]) { newId = s; break; } @@ -554,7 +860,7 @@ r_shaderHnd_c* r_renderer_c::RegisterShaderFromData(int width, int height, int t return new r_shaderHnd_c(shaderList[newId]); } -void r_renderer_c::GetShaderImageSize(r_shaderHnd_c* hnd, int &width, int &height) +void r_renderer_c::GetShaderImageSize(r_shaderHnd_c* hnd, int& width, int& height) { if (hnd && hnd->sh->tex->status == r_tex_c::DONE) { width = hnd->sh->tex->fileWidth; @@ -598,10 +904,10 @@ void r_renderer_c::SetDrawLayer(int layer, int subLayer) break; } } - if ( !newCurLayer ) { + if (!newCurLayer) { if (numLayer == layerListSize) { - layerListSize<<= 1; - trealloc(layerList, layerListSize); + layerListSize <<= 1; + trealloc(layerList, layerListSize); } layerList[numLayer] = new r_layer_c(this, layer, subLayer); newCurLayer = layerList[numLayer]; @@ -683,7 +989,7 @@ void r_renderer_c::DrawString(float x, float y, int align, int height, const col font = F_FIXED; } - scp_t pos = {x, y}; + scp_t pos = { x, y }; if (col) { col4_t tcol; Vector4Copy(col, tcol); @@ -702,7 +1008,7 @@ void r_renderer_c::DrawStringFormat(float x, float y, int align, int height, con va_list va; va_start(va, fmt); - scp_t pos = {x, y}; + scp_t pos = { x, y }; if (col) { col4_t tcol; Vector4Copy(col, tcol); @@ -734,11 +1040,11 @@ int r_renderer_c::DrawStringCursorIndex(int height, int font, const char* str, i // Screenshots // =========== -void r_renderer_c::C_Screenshot(IConsole* conHnd, args_c &args) +void r_renderer_c::C_Screenshot(IConsole* conHnd, args_c& args) { - const char* fmtName = args.argc >= 2? args.argv[1] : r_screenshotFormat->strVal; + const char* fmtName = args.argc >= 2 ? args.argv[1] : r_screenshotFormat->strVal.c_str(); takeScreenshot = R_SSNONE; - if ( !_stricmp(fmtName, "tga") ) { + if (!_stricmp(fmtName, "tga")) { takeScreenshot = R_SSTGA; } else if ( !_stricmp(fmtName, "jpg") || !_stricmp(fmtName, "jpeg") ) { takeScreenshot = R_SSJPEG; @@ -758,16 +1064,15 @@ void r_renderer_c::DoScreenshot(image_c* i, const char* ext) byte* sbuf = new byte[size]; // Read the front buffer - glReadBuffer(GL_FRONT); glPixelStorei(GL_PACK_ALIGNMENT, 1); glReadPixels(0, 0, xs, ys, r_tex_c::GLTypeForImgType(i->type), GL_UNSIGNED_BYTE, sbuf); // Flip the image int span = xs * 3; byte* ss = new byte[size]; - byte* p1 = sbuf; + byte* p1 = sbuf; byte* p2 = ss + size - span; - for (int y = 0; y < ys; y++, p1+= span, p2-= span) { + for (int y = 0; y < ys; y++, p1 += span, p2 -= span) { memcpy(p2, p1, span); } delete[] sbuf; @@ -778,19 +1083,17 @@ void r_renderer_c::DoScreenshot(image_c* i, const char* ext) i->height = ys; i->comp = 3; - char ssname[260]; time_t curTime; time(&curTime); - tm curTimeSt; - localtime_s(&curTimeSt, &curTime); - sprintf_s(ssname, 260, CFG_DATAPATH "Screenshots/%02d%02d%02d_%02d%02d%02d.%s", - curTimeSt.tm_mon+1, curTimeSt.tm_mday, curTimeSt.tm_year%100, - curTimeSt.tm_hour, curTimeSt.tm_min, curTimeSt.tm_sec, ext); - - // Save image - if (i->Save(ssname)) { - sys->con->Printf("Couldn't write screenshot!\n"); + std::string ssname = fmt::format(CFG_DATAPATH "Screenshots/{:%m%d%y_%H%M%S}.{}", + fmt::localtime(curTime), ext); + // curTimeSt.tm_mon+1, curTimeSt.tm_mday, curTimeSt.tm_year%100, + // curTimeSt.tm_hour, curTimeSt.tm_min, curTimeSt.tm_sec, ext); + +// Save image + if (i->Save(ssname.c_str())) { + sys->con->Print("Couldn't write screenshot!\n"); } else { - sys->con->Printf("Wrote screenshot to %s\n", ssname); + sys->con->Print(fmt::format("Wrote screenshot to {}\n", ssname).c_str()); } } diff --git a/engine/render/r_main.h b/engine/render/r_main.h index 59e431e..4b3e18e 100644 --- a/engine/render/r_main.h +++ b/engine/render/r_main.h @@ -97,7 +97,10 @@ class r_renderer_c: public r_IRenderer, public conCmdHandler_c { bool texNonPOT = false; // Non power-of-2 textures supported? dword texMaxDim = 0; // Maximum texture dimension - PFNGLCOMPRESSEDTEXIMAGE2DARBPROC glCompressedTexImage2DARB = nullptr; + PFNGLCOMPRESSEDTEXIMAGE2DPROC glCompressedTexImage2D = nullptr; + PFNGLINSERTEVENTMARKEREXTPROC glInsertEventMarkerEXT = nullptr; + PFNGLPUSHGROUPMARKEREXTPROC glPushGroupMarkerEXT = nullptr; + PFNGLPOPGROUPMARKEREXTPROC glPopGroupMarkerEXT = nullptr; conVar_c* r_compress = nullptr; conVar_c* r_screenshotFormat = nullptr; @@ -115,6 +118,8 @@ class r_renderer_c: public r_IRenderer, public conCmdHandler_c { int numShader = 0; class r_shader_c *shaderList[R_MAXSHADERS] = {}; + int tintedTextureProgram = 0; + int numLayer = 0; int layerListSize = 0; r_layer_c** layerList = nullptr; diff --git a/engine/render/r_texture.cpp b/engine/render/r_texture.cpp index 107bc18..7c099dd 100644 --- a/engine/render/r_texture.cpp +++ b/engine/render/r_texture.cpp @@ -63,7 +63,7 @@ class t_manager_c: public r_ITexManager, public thread_c { std::vector textureQueue; std::mutex mutex; - void ThreadProc(); + void ThreadProc() override; }; r_ITexManager* r_ITexManager::GetHandle(r_renderer_c* renderer) @@ -157,7 +157,6 @@ bool t_manager_c::AsyncRemove(r_tex_c* tex) void t_manager_c::ThreadProc() { - renderer->openGL->CaptureSecondary(); isRunning = true; while (doRun) { r_tex_c *doTex = nullptr; @@ -191,7 +190,6 @@ void t_manager_c::ThreadProc() renderer->sys->Sleep(1); } } - renderer->openGL->ReleaseSecondary(); isRunning = false; } @@ -292,8 +290,8 @@ int r_tex_c::GLTypeForImgType(int type) GL_LUMINANCE, GL_RGB, GL_RGBA, - GL_BGR, - GL_BGRA, + 0, + 0, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, @@ -343,11 +341,7 @@ void r_tex_c::Disable() } void r_tex_c::StartLoad() -{ - if ((flags & TF_ASYNC) != 0 && status == INIT && fileWidth == 0) { - manager->AsyncAdd(this); - } -} +{} void r_tex_c::AbortLoad() { @@ -356,10 +350,7 @@ void r_tex_c::AbortLoad() void r_tex_c::ForceLoad() { - manager->AsyncRemove( this ); - if (status == INIT) { - flags &= ~TF_ASYNC; LoadFile(); } else if (fileWidth == 0) { // Load not pending, do it now @@ -419,8 +410,8 @@ void r_tex_c::Upload(image_c* image, int flags) // Set repeating if (flags & TF_CLAMP) { - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); } else { glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); @@ -443,7 +434,7 @@ void r_tex_c::Upload(image_c* image, int flags) // Special case for precompressed textures (BLP DXT) if (image->type >= IMGTYPE_RGB_DXT1 && image->type <= IMGTYPE_RGBA_DXT5) { - if ( !renderer->glCompressedTexImage2DARB ) { + if ( !renderer->glCompressedTexImage2D ) { image_c raw; raw.CopyRaw(IMGTYPE_GRAY, 8, 8, t_defaultTexture); Upload(&raw, TF_NOMIPMAP); @@ -455,7 +446,7 @@ void r_tex_c::Upload(image_c* image, int flags) while (1) { mipSize = *(dword*)datPtr; datPtr+= sizeof(dword); - renderer->glCompressedTexImage2DARB(GL_TEXTURE_2D, miplevel, GLTypeForImgType(image->type), up_w, up_h, 0, mipSize, datPtr); + renderer->glCompressedTexImage2D(GL_TEXTURE_2D, miplevel, GLTypeForImgType(image->type), up_w, up_h, 0, mipSize, datPtr); datPtr+= mipSize; if ((up_w == 1 && up_h == 1) || flags & TF_NOMIPMAP) { break; @@ -464,10 +455,6 @@ void r_tex_c::Upload(image_c* image, int flags) up_h = (up_h > 1)? up_h >> 1 : 1; miplevel++; } - if (flags & TF_ASYNC) { - // Needed to ensure texture is usable immediately - glFlush(); - } fileWidth = image->width; fileHeight = image->height; return; @@ -484,8 +471,8 @@ void r_tex_c::Upload(image_c* image, int flags) mipBuf[2] = image->dat; } - int intformat = image->comp; - if (renderer->r_compress->intVal && renderer->glCompressedTexImage2DARB) { + int intformat = 0; + if (renderer->r_compress->intVal && renderer->glCompressedTexImage2D) { // Enable compression if (image->comp == 3) { intformat = GL_COMPRESSED_RGB_S3TC_DXT1_EXT; @@ -493,6 +480,9 @@ void r_tex_c::Upload(image_c* image, int flags) intformat = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT; } } + if (!intformat) { + intformat = GLTypeForImgType(image->type); + } int miplevel = 0; int cibuf = 2; @@ -575,10 +565,6 @@ void r_tex_c::Upload(image_c* image, int flags) delete mipBuf[2]; } - if (flags & TF_ASYNC) { - // Needed to ensure texture is usable immediately - glFlush(); - } fileWidth = image->width; fileHeight = image->height; } diff --git a/engine/system/sys_main.h b/engine/system/sys_main.h index de13fee..128b27e 100644 --- a/engine/system/sys_main.h +++ b/engine/system/sys_main.h @@ -4,6 +4,9 @@ // System Main Header // +#include +#include + // ======= // Classes // ======= @@ -15,7 +18,7 @@ class timer_c { void Start(); int Get(); private: - int startTime; + std::chrono::system_clock::time_point startTime; }; // Thread @@ -23,31 +26,27 @@ class thread_c { public: thread_c(class sys_IMain* sys); void ThreadStart(bool lowPri = false); - static int atomicInc(volatile int* val); - static int atomicDec(volatile int* val); - static int atomicExch(volatile int* out, int val); private: class sys_main_c* _sysMain; virtual void ThreadProc() = 0; - static unsigned long __stdcall statThreadProc(void* obj); + static unsigned long statThreadProc(void* obj); }; // File finder class find_c { public: - char fileName[512] = {}; + std::string fileName; bool isDirectory = false; - dword fileSize = 0; + uintmax_t fileSize = 0; unsigned long long modified = 0; - char modifiedDate[256] = {}; - char modifiedTime[256] = {}; find_c(); ~find_c(); bool FindFirst(const char* fileSpec); bool FindNext(); private: - void* handle; + std::filesystem::path glob; + std::filesystem::directory_iterator iter; }; // ========== @@ -61,17 +60,16 @@ class sys_IMain { sys_IConsole* conWin = nullptr; sys_IVideo* video = nullptr; - bool x64 = false; - bool debug = false; - bool debuggerRunning = false; - int processorCount = 0; - char basePath[512] = {}; - char userPath[512] = {}; + bool x64 = false; + bool debug = false; + bool debuggerRunning = false; + int processorCount = 0; + std::string basePath; + std::string userPath; virtual int GetTime() = 0; virtual void Sleep(int msec) = 0; virtual bool IsKeyDown(byte key) = 0; - virtual void ShowCursor(int doShow) = 0; virtual void ClipboardCopy(const char* str) = 0; virtual char* ClipboardPaste() = 0; virtual bool SetWorkDir(const char* newCwd = NULL) = 0; diff --git a/engine/system/sys_opengl.h b/engine/system/sys_opengl.h index a31b92b..ea406b3 100644 --- a/engine/system/sys_opengl.h +++ b/engine/system/sys_opengl.h @@ -31,6 +31,4 @@ class sys_IOpenGL { virtual void Swap() = 0; // Swap buffers virtual void* GetProc(const char* name) = 0; // Get extension function address - virtual bool CaptureSecondary() = 0; // Capture secondary context - virtual bool ReleaseSecondary() = 0; // Release secondary content }; diff --git a/engine/system/sys_video.h b/engine/system/sys_video.h index 461a95e..2110c78 100644 --- a/engine/system/sys_video.h +++ b/engine/system/sys_video.h @@ -10,7 +10,6 @@ // Video settings flags enum vidFlags_e { - VID_FULLSCREEN = 0x01, VID_TOPMOST = 0x02, VID_RESIZABLE = 0x04, VID_MAXIMIZE = 0x08, @@ -22,6 +21,7 @@ struct sys_vidSave_s { int size[2] = {}; int pos[2] = {}; bool maximised = false; + int fbSize[2] = {}; }; // Video settings structure @@ -52,6 +52,7 @@ class sys_IVideo { virtual void SetActive(bool active) = 0; // Respond to window activated status change virtual void SetForeground() = 0; // Activate the window if shown virtual bool IsActive() = 0; // Get activated status + virtual void FramebufferSizeChanged(int width, int height) = 0; // Respond to framebuffer size change virtual void SizeChanged(int width, int height, bool max) = 0; // Respond to window size change virtual void PosChanged(int x, int y) = 0; // Respond to window position change virtual void GetMinSize(int &width, int &height) = 0; // Get minimum window size diff --git a/engine/system/win/sys_console.cpp b/engine/system/win/sys_console.cpp index 37f4276..aeb2c4c 100644 --- a/engine/system/win/sys_console.cpp +++ b/engine/system/win/sys_console.cpp @@ -45,6 +45,7 @@ class sys_console_c: public sys_IConsole, public conPrintHook_c, public thread_c volatile bool doRun; volatile bool isRunning; + void RunMessages(HWND hwnd = nullptr); void ThreadProc(); void Print(const char* text); @@ -74,6 +75,19 @@ sys_console_c::sys_console_c(sys_IMain* sysHnd) while ( !isRunning ); } +void sys_console_c::RunMessages(HWND hwnd) +{ + // Flush message queue + MSG msg; + while (PeekMessage(&msg, hwnd, 0, 0, PM_NOREMOVE)) { + if (GetMessage(&msg, hwnd, 0, 0) == 0) { + sys->Exit(); + } + TranslateMessage(&msg); + DispatchMessage(&msg); + } +} + void sys_console_c::ThreadProc() { // Get info of the monitor containing the mouse cursor @@ -134,7 +148,7 @@ void sys_console_c::ThreadProc() InvalidateRect(hwOut, nullptr, TRUE); // Flush any messages created - sys->RunMessages(); + RunMessages(); shown = true; @@ -142,7 +156,7 @@ void sys_console_c::ThreadProc() isRunning = true; while (doRun) { - sys->RunMessages(hwMain); + RunMessages(hwMain); sys->Sleep(1); } @@ -214,7 +228,7 @@ void sys_console_c::SetVisible(bool show) Print(buffer); delete buffer; - sys->RunMessages(hwMain); + RunMessages(hwMain); } } else { shown = false; @@ -284,7 +298,7 @@ void sys_console_c::Print(const char* text) Edit_SetSel(hwOut, Edit_GetTextLength(hwOut), -1); Edit_ReplaceSel(hwOut, winText); Edit_Scroll(hwOut, 0xFFFF, 0); - sys->RunMessages(hwMain); + RunMessages(hwMain); delete winText; } diff --git a/engine/system/win/sys_console_unix.cpp b/engine/system/win/sys_console_unix.cpp new file mode 100644 index 0000000..cf14bc9 --- /dev/null +++ b/engine/system/win/sys_console_unix.cpp @@ -0,0 +1,158 @@ +// SimpleGraphic Engine +// (c) David Gowor, 2014 +// +// Module: System Console +// Platform: Windows +// + +#include "sys_local.h" + +#include +#include +#include + +// ====================== +// sys_IConsole Interface +// ====================== + +class sys_console_c: public sys_IConsole, public conPrintHook_c, public thread_c { +public: + // Interface + void SetVisible(bool show); + bool IsVisible(); + void SetForeground(); + void SetTitle(const char* title); + + // Encapsulated + sys_console_c(sys_IMain* sysHnd); + ~sys_console_c(); + + sys_main_c* sys = nullptr; + + volatile bool doRun; + volatile bool isRunning; + + void RunMessages(void* = nullptr); + void ThreadProc(); + + void Print(const char* text); + void CopyToClipboard(); + + void ConPrintHook(const char* text); + void ConPrintClear(); +}; + +sys_IConsole* sys_IConsole::GetHandle(sys_IMain* sysHnd) +{ + return new sys_console_c(sysHnd); +} + +void sys_IConsole::FreeHandle(sys_IConsole* hnd) +{ + delete (sys_console_c*)hnd; +} + +sys_console_c::sys_console_c(sys_IMain* sysHnd) + : conPrintHook_c(sysHnd->con), sys((sys_main_c*)sysHnd), thread_c(sysHnd) +{ + isRunning = false; + doRun = true; + + ThreadStart(true); + while ( !isRunning ); +} + +void sys_console_c::RunMessages(void*) +{} + +void sys_console_c::ThreadProc() +{ + // Flush any messages created + RunMessages(); + + InstallPrintHook(); + + isRunning = true; + while (doRun) { + RunMessages(); + sys->Sleep(1); + } + + RemovePrintHook(); + + isRunning = false; +} + +sys_console_c::~sys_console_c() +{ + doRun = false; + while (isRunning); +} + +// ============== +// System Console +// ============== + +void sys_console_c::SetVisible(bool show) +{} + +void sys_console_c::SetForeground() +{} + +bool sys_console_c::IsVisible() +{ + return true; +} + +void sys_console_c::SetTitle(const char* title) +{} + +void sys_console_c::Print(const char* text) +{ + int escLen; + + // Find the required buffer length + int len = 0; + for (int b = 0; text[b]; b++) { + if (text[b] == '\n') { + // Newline takes 1 character + len+= 1; + } else if ((escLen = IsColorEscape(&text[b]))) { + // Skip colour escapes + b+= escLen - 1; + } else { + len++; + } + } + + // Parse into the buffer + char* winText = AllocStringLen(len); + char* p = winText; + for (int b = 0; text[b]; b++) { + if (text[b] == '\n') { + // Append newline + *(p++) = '\n'; + } else if ((escLen = IsColorEscape(&text[b]))) { + // Skip colour escapes + b+= escLen - 1; + } else { + // Add character + *(p++) = text[b]; + } + } + + // Append to the output + std::cerr << winText << std::flush; + delete winText; +} + +void sys_console_c::CopyToClipboard() +{} + +void sys_console_c::ConPrintHook(const char* text) +{ + Print(text); +} + +void sys_console_c::ConPrintClear() +{} diff --git a/engine/system/win/sys_local.h b/engine/system/win/sys_local.h index 6bd2c9c..07d2f23 100644 --- a/engine/system/win/sys_local.h +++ b/engine/system/win/sys_local.h @@ -9,13 +9,18 @@ #include "system.h" -#define _WIN32_WINNT _WIN32_WINNT_WINXP +#ifdef _WIN32 +#define _WIN32_WINNT _WIN32_WINNT_WIN7 #define WIN32_LEAN_AND_MEAN #include #include #include #include #include +#endif + +#include +#include // ======= // Classes @@ -28,7 +33,6 @@ class sys_main_c: public sys_IMain { int GetTime(); void Sleep(int msec); bool IsKeyDown(byte key); - void ShowCursor(int doShow); void ClipboardCopy(const char* str); char* ClipboardPaste(); bool SetWorkDir(const char* newCwd = NULL); @@ -43,15 +47,15 @@ class sys_main_c: public sys_IMain { bool Run(int argc, char** argv); - static LRESULT __stdcall WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam); - void RunMessages(HWND hwnd = NULL); - void PrintLastError(const char* msg); - int KeyToVirtual(byte key); byte VirtualToKey(int virt); + byte GlfwKeyToKey(int key); + char GlfwKeyExtraChar(int key); +#ifdef _WIN32 HINSTANCE hinst = nullptr; HICON icon = nullptr; +#endif class core_IMain* core = nullptr; @@ -61,5 +65,6 @@ class sys_main_c: public sys_IMain { char* exitMsg = nullptr; char* threadError = nullptr; bool errorRaised = false; - int baseTime = 0; + std::chrono::system_clock::time_point baseTime; + std::vector heldKeyState; }; diff --git a/engine/system/win/sys_macos.mm b/engine/system/win/sys_macos.mm new file mode 100644 index 0000000..7db1ca0 --- /dev/null +++ b/engine/system/win/sys_macos.mm @@ -0,0 +1,11 @@ +#include +#include +#include + +void PlatformOpenURL(const char* textUrl) +{ + std::string_view urlView = textUrl; + CFURLRef url = CFURLCreateWithBytes(nullptr, (const UInt8*)urlView.data(), urlView.size(), kCFStringEncodingUTF8, nullptr); + LSOpenCFURLRef(url, nullptr); + CFRelease(url); +} diff --git a/engine/system/win/sys_main.cpp b/engine/system/win/sys_main.cpp index 84ab748..379949d 100644 --- a/engine/system/win/sys_main.cpp +++ b/engine/system/win/sys_main.cpp @@ -5,38 +5,64 @@ // Platform: Windows // +#include +#include + #include "sys_local.h" #include "core.h" +#ifdef _WIN32 #include +#include +#elif __linux__ +#include +#include +#elif __APPLE__ && __MACH__ +#include +#endif + +#ifndef _WIN32 +#include +#include +#include +#endif + +#include +#include +#include +#include +#include + +#include // ====== // Locals // ====== +#ifdef _WIN32 static void SE_ErrorTrans(unsigned int code, EXCEPTION_POINTERS* exPtr) { throw exPtr; } +#endif // =========== // Timer class // =========== timer_c::timer_c() -{ - startTime = 0; -} +{} void timer_c::Start() { - startTime = timeGetTime(); + startTime = std::chrono::system_clock::now(); } int timer_c::Get() { - return timeGetTime() - startTime; + auto curTime = std::chrono::system_clock::now(); + return (int)std::chrono::duration_cast(curTime - startTime).count(); } // ============ @@ -48,18 +74,20 @@ thread_c::thread_c(sys_IMain* sys) _sysMain = (sys_main_c*)sys; } -unsigned long __stdcall thread_c::statThreadProc(void* obj) +unsigned long thread_c::statThreadProc(void* obj) { thread_c* thread = (thread_c*)obj; try { +#ifdef _WIN32 // Enable translation to catch C exceptions if debugger is not present if ( !thread->_sysMain->debuggerRunning ) { _set_se_translator(SE_ErrorTrans); } - +#endif // Run thread procedure thread->ThreadProc(); } +#ifdef _WIN32 catch (EXCEPTION_POINTERS* exPtr) { // C exception PEXCEPTION_RECORD exRec = exPtr->ExceptionRecord; @@ -77,31 +105,24 @@ unsigned long __stdcall thread_c::statThreadProc(void* obj) sprintf_s(err, 1024, "Critical error at address %08Xh in thread %d:\n%s", static_cast((ULONG_PTR)exRec->ExceptionAddress), GetCurrentThreadId(), detail); thread->_sysMain->threadError = AllocString(err); } +#else + catch (std::exception& e) { + thread->_sysMain->threadError = AllocString(fmt::format("Exception: {}", e.what()).c_str()); + } +#endif return 0; } void thread_c::ThreadStart(bool lowPri) { - HANDLE thr = CreateThread(NULL, 0, statThreadProc, this, CREATE_SUSPENDED, NULL); - if (lowPri) { + std::thread t(statThreadProc, this); +#ifdef _WIN32 + HANDLE thr = t.native_handle(); + if (thr && lowPri) { SetThreadPriority(thr, THREAD_PRIORITY_BELOW_NORMAL); } - ResumeThread(thr); -} - -int thread_c::atomicInc(volatile int* val) -{ - return InterlockedIncrement((LONG*)val); -} - -int thread_c::atomicDec(volatile int* val) -{ - return InterlockedDecrement((LONG*)val); -} - -int thread_c::atomicExch(volatile int* out, int val) -{ - return InterlockedExchange((LONG*)out, val); +#endif + t.detach(); } // =========== @@ -109,59 +130,142 @@ int thread_c::atomicExch(volatile int* out, int val) // =========== find_c::find_c() -{ - handle = NULL; -} +{} find_c::~find_c() +{} + +bool GlobMatch(const std::filesystem::path& glob, const std::filesystem::path& file) { - if (handle) { - FindClose(handle); + using namespace std::literals::string_view_literals; + auto globStr = glob.generic_string(); + + // Deal with traditional "everything" wildcards. + if (glob == "*" || glob == "*.*") { + return true; + } + + // If no wildcards are present, test file path as-is. + if (globStr.find_first_of("?*") == std::string::npos) { + return glob == file; } + + // Otherwise build a regular expression from the glob and use that to match files. + fmt::memory_buffer buf; + auto it = fmt::appender(buf); + for (char ch : glob.generic_string()) { + if (ch == '*') { + it = fmt::format_to(it, ".*"); + } else if (ch == '?') { + *it++ = '.'; + } else if ("+[]{}+()|"sv.find(ch) != std::string_view::npos) { + // Escape metacharacters + it = fmt::format_to(it, "\\{}", ch); + } else if (std::isalnum((unsigned char)ch)) { + *it++ = ch; + } else { + it = fmt::format_to(it, "[{}]", ch); + } + } + RE2 reGlob{to_string(buf)}; + + return RE2::FullMatch(file.generic_string(), reGlob); } bool find_c::FindFirst(const char* fileSpec) { - WIN32_FIND_DATA findData; - handle = FindFirstFile(fileSpec, &findData); - if (handle == INVALID_HANDLE_VALUE) { - handle = NULL; - return false; + std::filesystem::path p(fileSpec); + glob = p.filename(); + + std::error_code ec; + for (iter = std::filesystem::directory_iterator(p.parent_path(), ec); iter != std::filesystem::directory_iterator{}; ++iter) { + auto candFilename = iter->path().filename(); + if (GlobMatch(glob, candFilename)) { + fileName = candFilename.string(); + isDirectory = iter->is_directory(); + fileSize = iter->file_size(); + auto mod = iter->last_write_time(); + modified = mod.time_since_epoch().count(); + return true; + } } - strcpy(fileName, findData.cFileName); - isDirectory = (findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0; - fileSize = findData.nFileSizeLow; - modified = ((unsigned long long)findData.ftLastWriteTime.dwLowDateTime + ((unsigned long long)findData.ftLastWriteTime.dwHighDateTime << 32)) / 10000000; - SYSTEMTIME sysTime; - FileTimeToSystemTime(&findData.ftLastWriteTime, &sysTime); - GetTimeFormat(LOCALE_USER_DEFAULT, 0, &sysTime, NULL, modifiedTime, 256); - GetDateFormat(LOCALE_USER_DEFAULT, 0, &sysTime, NULL, modifiedDate, 256); - return true; + return false; } bool find_c::FindNext() { - WIN32_FIND_DATA findData; - if (FindNextFile(handle, &findData) == 0) { - FindClose(handle); - handle = NULL; + if (iter == std::filesystem::directory_iterator{}) { return false; } - strcpy(fileName, findData.cFileName); - isDirectory = (findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0; - fileSize = findData.nFileSizeLow; - modified = ((unsigned long long)findData.ftLastWriteTime.dwLowDateTime + ((unsigned long long)findData.ftLastWriteTime.dwHighDateTime << 32)) / 10000000; - SYSTEMTIME sysTime; - FileTimeToSystemTime(&findData.ftLastWriteTime, &sysTime); - GetTimeFormat(LOCALE_USER_DEFAULT, 0, &sysTime, NULL, modifiedTime, 256); - GetDateFormat(LOCALE_USER_DEFAULT, 0, &sysTime, NULL, modifiedDate, 256); - return true; + + for (++iter; iter != std::filesystem::directory_iterator{}; ++iter) { + auto candFilename = iter->path().filename(); + if (GlobMatch(glob, candFilename)) { + fileName = candFilename.string(); + isDirectory = iter->is_directory(); + fileSize = iter->file_size(); + auto mod = iter->last_write_time(); + modified = mod.time_since_epoch().count(); + return true; + } + } + return false; } // =========== // Key Mapping // =========== +byte KeyRemapGLFW(int key) { + if (key >= GLFW_KEY_0 && key <= GLFW_KEY_9) { + return '0' + (key - GLFW_KEY_0); + } + if (key >= GLFW_KEY_A && key <= GLFW_KEY_Z) { + return 'a' + (key - GLFW_KEY_A); + } + if (key >= GLFW_KEY_F1 && key <= GLFW_KEY_F15) { + return KEY_F1 + (key - GLFW_KEY_F1); + } + switch (key) { + case GLFW_KEY_BACKSPACE: return KEY_BACK; + case GLFW_KEY_TAB: return KEY_TAB; + case GLFW_KEY_ENTER: return KEY_RETURN; + case GLFW_KEY_LEFT_SHIFT: + case GLFW_KEY_RIGHT_SHIFT: return KEY_SHIFT; + case GLFW_KEY_LEFT_CONTROL: + case GLFW_KEY_RIGHT_CONTROL: return KEY_CTRL; + case GLFW_KEY_LEFT_ALT: + case GLFW_KEY_RIGHT_ALT: return KEY_ALT; + case GLFW_KEY_PAUSE: return KEY_PAUSE; + case GLFW_KEY_ESCAPE: return KEY_ESCAPE; + case GLFW_KEY_SPACE: return ' '; + case GLFW_KEY_PAGE_UP: return KEY_PGUP; + case GLFW_KEY_PAGE_DOWN: return KEY_PGDN; + case GLFW_KEY_END: return KEY_END; + case GLFW_KEY_HOME: return KEY_HOME; + case GLFW_KEY_LEFT: return KEY_LEFT; + case GLFW_KEY_UP: return KEY_UP; + case GLFW_KEY_RIGHT: return KEY_RIGHT; + case GLFW_KEY_DOWN: return KEY_DOWN; + case GLFW_KEY_PRINT_SCREEN: return KEY_PRINTSCRN; + case GLFW_KEY_INSERT: return KEY_INSERT; + case GLFW_KEY_DELETE: return KEY_DELETE; + case GLFW_KEY_NUM_LOCK: return KEY_NUMLOCK; + case GLFW_KEY_SCROLL_LOCK: return KEY_SCROLL; + case GLFW_KEY_SEMICOLON: return ';'; + case GLFW_KEY_COMMA: return ','; + case GLFW_KEY_MINUS: return '-'; + case GLFW_KEY_PERIOD: return '.'; + case GLFW_KEY_SLASH: return '/'; + case GLFW_KEY_GRAVE_ACCENT: return '`'; + case GLFW_KEY_LEFT_BRACKET: return '['; + case GLFW_KEY_BACKSLASH: return '\\'; + case GLFW_KEY_RIGHT_BRACKET: return ']'; + case GLFW_KEY_APOSTROPHE: return '\''; + } + return 0; +} + static const byte sys_keyRemap[] = { 0, // 00 Null KEY_LMOUSE, // 01 VK_LBUTTON @@ -329,6 +433,7 @@ static const byte sys_keyRemap[] = { '\'', // DE VK_OEM_7 }; +#ifdef _WIN32 int sys_main_c::KeyToVirtual(byte key) { if (key >= 32 && key <= 127) { @@ -350,6 +455,84 @@ byte sys_main_c::VirtualToKey(int virt) return 0; } } +#endif + +byte sys_main_c::GlfwKeyToKey(int key) { + static std::map s_lookup = { + {GLFW_KEY_BACKSPACE, KEY_BACK}, + {GLFW_KEY_TAB, KEY_TAB}, + {GLFW_KEY_ENTER, KEY_RETURN}, + {GLFW_KEY_LEFT_SHIFT, KEY_SHIFT}, + {GLFW_KEY_RIGHT_SHIFT, KEY_SHIFT}, + {GLFW_KEY_LEFT_CONTROL, KEY_CTRL}, + {GLFW_KEY_RIGHT_CONTROL, KEY_CTRL}, + {GLFW_KEY_LEFT_ALT, KEY_ALT}, + {GLFW_KEY_RIGHT_ALT, KEY_ALT}, + {GLFW_KEY_PAUSE, KEY_PAUSE}, + {GLFW_KEY_ESCAPE, KEY_ESCAPE}, + {GLFW_KEY_SPACE, ' '}, + {GLFW_KEY_PAGE_UP, KEY_PGUP}, + {GLFW_KEY_PAGE_DOWN, KEY_PGDN}, + {GLFW_KEY_END, KEY_END}, + {GLFW_KEY_HOME, KEY_HOME}, + {GLFW_KEY_LEFT, KEY_LEFT}, + {GLFW_KEY_UP, KEY_UP}, + {GLFW_KEY_RIGHT, KEY_RIGHT}, + {GLFW_KEY_DOWN, KEY_DOWN}, + {GLFW_KEY_PRINT_SCREEN, KEY_PRINTSCRN}, + {GLFW_KEY_INSERT, KEY_INSERT}, + {GLFW_KEY_DELETE, KEY_DELETE}, + {GLFW_KEY_NUM_LOCK, KEY_NUMLOCK}, + {GLFW_KEY_SCROLL_LOCK, KEY_SCROLL}, + {GLFW_KEY_SEMICOLON, ';'}, + // GLFW defines no plus key + {GLFW_KEY_EQUAL, '+'}, + {GLFW_KEY_COMMA, ','}, + {GLFW_KEY_MINUS, '-'}, + {GLFW_KEY_PERIOD, '.'}, + {GLFW_KEY_SLASH, '/'}, + {GLFW_KEY_GRAVE_ACCENT, '`'}, + {GLFW_KEY_LEFT_BRACKET, '['}, + {GLFW_KEY_BACKSLASH, '\\'}, + {GLFW_KEY_RIGHT_BRACKET, ']'}, + {GLFW_KEY_APOSTROPHE, '\''}, + }; + + auto I = s_lookup.find(key); + if (I != s_lookup.end()) { + return I->second; + } + + if (key >= GLFW_KEY_F1 && key <= GLFW_KEY_F15) { + return KEY_F1 + (key - GLFW_KEY_F1); + } + + if (key >= GLFW_KEY_0 && key <= GLFW_KEY_9) { + return '0' + (key - GLFW_KEY_0); + } + + if (key >= GLFW_KEY_A && key <= GLFW_KEY_Z) { + return 'a' + (key - GLFW_KEY_A); + } + + return 0; +} + +char sys_main_c::GlfwKeyExtraChar(int key) { + static std::map s_lookup = { + {GLFW_KEY_BACKSPACE, 0x8}, + {GLFW_KEY_TAB, 0x9}, + {GLFW_KEY_ENTER, 0xd}, + {GLFW_KEY_ESCAPE, 0x1b}, + }; + + auto I = s_lookup.find(key); + if (I != s_lookup.end()) { + return I->second; + } + + return 0; +} // ===================== // Misc System Functions @@ -357,57 +540,31 @@ byte sys_main_c::VirtualToKey(int virt) int sys_main_c::GetTime() { - return timeGetTime() - baseTime; + auto curTime = std::chrono::system_clock::now(); + return (int)std::chrono::duration_cast(curTime - baseTime).count(); } void sys_main_c::Sleep(int msec) { - ::Sleep(msec); + std::this_thread::sleep_for(std::chrono::milliseconds(msec)); } bool sys_main_c::IsKeyDown(byte k) { - return !!(GetKeyState(KeyToVirtual(k)) & 0x8000); -} - -void sys_main_c::ShowCursor(int doShow) -{ - static bool shown = true; - if (shown && !doShow) { - shown = false; - ::ShowCursor(0); - } else if (doShow && !shown) { - ::ShowCursor(1); - shown = true; + if (k < heldKeyState.size()) { + return !!heldKeyState[k]; } + return false; } void sys_main_c::ClipboardCopy(const char* str) { - size_t len = strlen(str); - HGLOBAL hg = GlobalAlloc(GMEM_MOVEABLE, len + 1); - if ( !hg ) return; - char* cp = (char*)GlobalLock(hg); - strcpy(cp, str); - GlobalUnlock(hg); - OpenClipboard((HWND)video->GetWindowHandle()); - EmptyClipboard(); - SetClipboardData(CF_TEXT, hg); - CloseClipboard(); + glfwSetClipboardString(nullptr, str); } char* sys_main_c::ClipboardPaste() { - char* ret = NULL; - OpenClipboard((HWND)video->GetWindowHandle()); - HANDLE clip = GetClipboardData(CF_TEXT); - if (clip) { - char* text = (char*)GlobalLock(clip); - ret = AllocString(text); - GlobalUnlock(clip); - } - CloseClipboard(); - return ret; + return AllocString(glfwGetClipboardString(nullptr)); } bool sys_main_c::SetWorkDir(const char* newCwd) @@ -415,12 +572,13 @@ bool sys_main_c::SetWorkDir(const char* newCwd) if (newCwd) { return _chdir(newCwd) != 0; } else { - return _chdir(basePath) != 0; + return _chdir(basePath.c_str()) != 0; } } void sys_main_c::SpawnProcess(const char* cmdName, const char* argList) { +#ifdef _WIN32 char cmd[512]; strcpy(cmd, cmdName); if ( !strchr(cmd, '.') ) { @@ -438,228 +596,35 @@ void sys_main_c::SpawnProcess(const char* cmdName, const char* argList) sinfo.lpVerb = "runas"; ShellExecuteEx(&sinfo); } +#else +#warning LV: Subprocesses not implemented on this OS. + // TODO(LV): Implement subprocesses for other OSes. +#endif } -void sys_main_c::OpenURL(const char* url) +#if _WIN32 || __linux__ +void PlatformOpenURL(const char* url) { +#ifdef _WIN32 ShellExecute(NULL, "open", url, NULL, NULL, SW_SHOWDEFAULT); +#else +#warning LV: URL opening not implemented on this OS. + // TODO(LV): Implement URL opening for other OSes. +#endif } +#else +void PlatformOpenURL(const char* url); +#endif -// ===================== -// Main Window Prodecure -// ===================== - -LRESULT __stdcall sys_main_c::WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) -{ - sys_main_c* sys = (sys_main_c*)GetWindowLongPtr(hwnd, GWLP_USERDATA); - if ( !sys ) { - return DefWindowProc(hwnd, msg, wParam, lParam); - } - - switch (msg) { - case WM_CLOSE: - if (sys->initialised && sys->core->CanExit()) { - PostQuitMessage(0); - } - return FALSE; - - case WM_ACTIVATEAPP: - sys->video->SetActive(!!wParam); - break; - - case WM_SIZE: - if ( !IsIconic(hwnd) ) { - sys->video->SizeChanged(LOWORD(lParam), HIWORD(lParam), wParam == SIZE_MAXIMIZED); - } - break; - - case WM_MOVE: - if ( !IsIconic(hwnd) ) { - sys->video->PosChanged(GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)); - } - break; - - case WM_GETMINMAXINFO: - { - int width, height; - sys->video->GetMinSize(width, height); - if (width) { - MINMAXINFO* mmi = (MINMAXINFO*)lParam; - mmi->ptMinTrackSize.x = width; - mmi->ptMinTrackSize.y = height; - } - } - return FALSE; - - case WM_CHAR: - if (sys->initialised) { - sys->core->KeyEvent((int)wParam, KE_CHAR); - } - return FALSE; - - case WM_SYSKEYDOWN: - if (lParam & 0x20000000) { - byte key = sys->VirtualToKey((int)wParam); - if (key == KEY_F4) { - PostQuitMessage(0); - } else if (key && sys->initialised) { - sys->core->KeyEvent(key, KE_KEYDOWN); - } - } - return FALSE; - - case WM_KEYDOWN: - if (sys->initialised) { - byte key = sys->VirtualToKey((int)wParam); - if (key) { - sys->core->KeyEvent(key, KE_KEYDOWN); - } - } - return FALSE; - - case WM_SYSKEYUP: - if (lParam & 0x20000000) { - byte key = sys->VirtualToKey((int)wParam); - if (key && sys->initialised) { - sys->core->KeyEvent(key, KE_KEYUP); - } - } - return FALSE; - - case WM_KEYUP: - if (sys->initialised) { - byte key = sys->VirtualToKey((int)wParam); - if (key) { - sys->core->KeyEvent(key, KE_KEYUP); - } - } - return FALSE; - - case WM_LBUTTONDOWN: - if (sys->initialised) { - sys->core->KeyEvent(KEY_LMOUSE, KE_KEYDOWN); - } - return FALSE; - - case WM_MBUTTONDOWN: - if (sys->initialised) { - sys->core->KeyEvent(KEY_MMOUSE, KE_KEYDOWN); - } - return FALSE; - - case WM_RBUTTONDOWN: - if (sys->initialised) { - sys->core->KeyEvent(KEY_RMOUSE, KE_KEYDOWN); - } - return FALSE; - - case WM_XBUTTONDOWN: - if (sys->initialised) { - if (GET_XBUTTON_WPARAM(wParam) == XBUTTON1) { - sys->core->KeyEvent(KEY_MOUSE4, KE_KEYDOWN); - } else if (GET_XBUTTON_WPARAM(wParam) == XBUTTON2) { - sys->core->KeyEvent(KEY_MOUSE5, KE_KEYDOWN); - } - } - return TRUE; - - case WM_LBUTTONUP: - if (sys->initialised) { - sys->core->KeyEvent(KEY_LMOUSE, KE_KEYUP); - } - return FALSE; - - case WM_MBUTTONUP: - if (sys->initialised) { - sys->core->KeyEvent(KEY_MMOUSE, KE_KEYUP); - } - return FALSE; - - case WM_RBUTTONUP: - if (sys->initialised) { - sys->core->KeyEvent(KEY_RMOUSE, KE_KEYUP); - } - return FALSE; - - case WM_XBUTTONUP: - if (sys->initialised) { - if (GET_XBUTTON_WPARAM(wParam) == XBUTTON1) { - sys->core->KeyEvent(KEY_MOUSE4, KE_KEYUP); - } else if (GET_XBUTTON_WPARAM(wParam) == XBUTTON2) { - sys->core->KeyEvent(KEY_MOUSE5, KE_KEYUP); - } - } - return TRUE; - - case WM_LBUTTONDBLCLK: - if (sys->initialised) { - sys->core->KeyEvent(KEY_LMOUSE, KE_DBLCLK); - } - return FALSE; - - case WM_MBUTTONDBLCLK: - if (sys->initialised) { - sys->core->KeyEvent(KEY_MMOUSE, KE_DBLCLK); - } - return FALSE; - - case WM_RBUTTONDBLCLK: - if (sys->initialised) { - sys->core->KeyEvent(KEY_RMOUSE, KE_DBLCLK); - } - return FALSE; - - case WM_XBUTTONDBLCLK: - if (sys->initialised) { - if (GET_XBUTTON_WPARAM(wParam) == XBUTTON1) { - sys->core->KeyEvent(KEY_MOUSE4, KE_DBLCLK); - } else if (GET_XBUTTON_WPARAM(wParam) == XBUTTON2) { - sys->core->KeyEvent(KEY_MOUSE5, KE_DBLCLK); - } - } - return TRUE; - - case WM_MOUSEWHEEL: - if (sys->initialised) { - if ((SHORT)HIWORD(wParam) > 0) { - sys->core->KeyEvent(KEY_MWHEELUP, KE_KEYDOWN); - sys->core->KeyEvent(KEY_MWHEELUP, KE_KEYUP); - } else { - sys->core->KeyEvent(KEY_MWHEELDOWN, KE_KEYDOWN); - sys->core->KeyEvent(KEY_MWHEELDOWN, KE_KEYUP); - } - } - return FALSE; - } - - return DefWindowProc(hwnd, msg, wParam, lParam); -} - -void sys_main_c::RunMessages(HWND hwnd) +void sys_main_c::OpenURL(const char* url) { - // Flush message queue - MSG msg; - while (PeekMessage(&msg, hwnd, 0, 0, PM_NOREMOVE)) { - if (GetMessage(&msg, hwnd, 0, 0) == 0) { - Exit(); - } - TranslateMessage(&msg); - DispatchMessage(&msg); - } + PlatformOpenURL(url); } // ============================== // System Initialisation/Shutdown // ============================== -void sys_main_c::PrintLastError(const char* msg) -{ - DWORD code = GetLastError(); - char buf[1024]; - FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, code, 0, buf, 1024, NULL); - con->Printf("%s: code %d, %s\n", msg, code, buf); -} - void sys_main_c::Error(const char *fmt, ...) { if (errorRaised) return; @@ -672,21 +637,32 @@ void sys_main_c::Error(const char *fmt, ...) va_list va; va_start(va, fmt); +#ifdef _WIN32 char msg[4096]; vsprintf_s(msg, 4096, fmt, va); +#else + char* msg{}; + vasprintf(&msg, fmt, va); +#endif va_end(va); con->Printf("\n--- ERROR ---\n%s", msg); +#ifndef _WIN32 + free(msg); +#endif exitFlag = false; while (exitFlag == false) { - RunMessages(); Sleep(50); } #ifdef _MEMTRAK_H _memTrak_suppressReport = true; #endif +#ifdef _WIN32 ExitProcess(0); +#else + std::exit(0); +#endif } void sys_main_c::Exit(const char* msg) @@ -712,7 +688,53 @@ void sys_main_c::Restart() exitFlag = true; } +std::string FindBasePath() +{ +#ifdef _WIN32 + std::vector basePath(512); + GetModuleFileNameA(NULL, basePath.data(), basePath.size()); + *strrchr(basePath.data(), '\\') = 0; + return basePath.data(); +#elif __linux__ + char basePath[PATH_MAX]; + ssize_t len = ::readlink("/proc/self/exe", basePath, sizeof(basePath)); + if (len == -1 || len == sizeof(basePath)) + len = 0; + basePath[len] = '\0'; + *strrchr(basePath, '/') = 0; + return basePath; +#elif __APPLE__ && __MACH__ + pid_t pid = getpid(); + char basePath[PROC_PIDPATHINFO_MAXSIZE]{}; + proc_pidpath(pid, basePath, sizeof(basePath)); + *strrchr(basePath, '/') = 0; + return basePath; +#endif +} + +std::string FindUserPath() +{ +#ifdef _WIN32 + PWSTR os_path{}; + SHGetKnownFolderPath(FOLDERID_Documents, KF_FLAG_DEFAULT, nullptr, &os_path); + std::filesystem::path path(os_path); + CoTaskMemFree(os_path); + return path.string(); +#else + if (char const* data_home_path = getenv("XDG_DATA_HOME")) { + return data_home_path; + } + if (char const* home_path = getenv("HOME")) { + return std::filesystem::path(home_path) / ".local/share"; + } + uid_t uid = getuid(); + struct passwd *pw = getpwuid(uid); + return std::filesystem::path(pw->pw_dir) / ".local/share"; +#endif +} + sys_main_c::sys_main_c() + : heldKeyState(KEY_SCROLL + 1, (uint8_t)0) { #ifdef _WIN64 x64 = true; @@ -724,17 +746,16 @@ sys_main_c::sys_main_c() #else debug = false; #endif +#ifdef _WIN32 debuggerRunning = IsDebuggerPresent() == TRUE; - SYSTEM_INFO sysInfo; - GetSystemInfo(&sysInfo); - processorCount = sysInfo.dwNumberOfProcessors; +#else + debuggerRunning = false; +#endif + processorCount = std::thread::hardware_concurrency(); // Set the local system information - hinst = GetModuleHandle(NULL); - icon = LoadIcon(hinst, MAKEINTRESOURCE(1000)); - GetModuleFileName(NULL, basePath, 512); - *strrchr(basePath, '\\') = 0; - SHGetFolderPath(NULL, CSIDL_PERSONAL, NULL, 0, userPath); + basePath = FindBasePath(); + userPath = FindUserPath(); } bool sys_main_c::Run(int argc, char** argv) @@ -745,7 +766,7 @@ bool sys_main_c::Run(int argc, char** argv) exitMsg = NULL; threadError = NULL; errorRaised = false; - baseTime = timeGetTime(); + baseTime = std::chrono::system_clock::now(); SetWorkDir(); @@ -765,17 +786,24 @@ bool sys_main_c::Run(int argc, char** argv) initialised = true; try { +#ifdef _WIN32 // Enable translation to catch C exceptions if debugger is not present if ( !debuggerRunning ) { _set_se_translator(SE_ErrorTrans); } +#endif // Initialise engine core->Init(argc, argv); // Run frame loop while (exitFlag == false) { - RunMessages(); + glfwPollEvents(); + auto wnd = (GLFWwindow*)video->GetWindowHandle(); + if (glfwWindowShouldClose(wnd)) { + Exit(); + break; + } core->Frame(); @@ -787,6 +815,7 @@ bool sys_main_c::Run(int argc, char** argv) // Shutdown engine core->Shutdown(); } +#ifdef _WIN32 catch (EXCEPTION_POINTERS* exPtr) { // C exception PEXCEPTION_RECORD exRec = exPtr->ExceptionRecord; @@ -802,6 +831,11 @@ bool sys_main_c::Run(int argc, char** argv) } Error("Critical error at address %08Xh:\n%s", static_cast((ULONG_PTR)exRec->ExceptionAddress), detail); } +#else + catch (std::exception& e) { + Error("Exception: ", e.what()); + } +#endif if (exitMsg) { exitFlag = false; @@ -813,7 +847,6 @@ bool sys_main_c::Run(int argc, char** argv) exitMsg = NULL; } while (exitFlag == false) { - RunMessages(); Sleep(50); } } diff --git a/engine/system/win/sys_opengl.cpp b/engine/system/win/sys_opengl.cpp index 8101b42..8bddefa 100644 --- a/engine/system/win/sys_opengl.cpp +++ b/engine/system/win/sys_opengl.cpp @@ -7,15 +7,12 @@ #include "sys_local.h" -#include +#include // ===================== // sys_IOpenGL Interface // ===================== -typedef char* (WINAPI *PFNWGLGETEXTENSIONSTRINGEXTPROC)(void); -typedef BOOL (WINAPI *PFNWGLSWAPINTERVALEXTPROC)(int); - class sys_openGL_c: public sys_IOpenGL { public: // Interface @@ -24,21 +21,11 @@ class sys_openGL_c: public sys_IOpenGL { void Swap(); void* GetProc(const char* name); - bool CaptureSecondary(); - bool ReleaseSecondary(); // Encapsulated sys_openGL_c(sys_IMain* sysHnd); sys_main_c* sys; - - PFNWGLGETEXTENSIONSTRINGEXTPROC wglGetExtensionsStringEXT = nullptr; - PFNWGLSWAPINTERVALEXTPROC wglSwapIntervalEXT = nullptr; - - HDC hdc = nullptr; // Device contexts - HDC hdc2 = nullptr; - HGLRC hglrc = nullptr; // Rendering contexts - HGLRC hglrc2 = nullptr; }; sys_IOpenGL* sys_IOpenGL::GetHandle(sys_IMain* sysHnd) @@ -62,119 +49,23 @@ sys_openGL_c::sys_openGL_c(sys_IMain* sysHnd) bool sys_openGL_c::Init(sys_glSet_s* set) { - // Get device handles - HWND hwnd = (HWND)sys->video->GetWindowHandle(); - hdc = GetDC(hwnd); - hdc2 = GetDC(hwnd); - - // Initialise pixel format - PIXELFORMATDESCRIPTOR pfd; - ZeroMemory(&pfd, sizeof(PIXELFORMATDESCRIPTOR)); - pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR); - pfd.nVersion = 1; - pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER; - pfd.iPixelType = PFD_TYPE_RGBA; - pfd.cColorBits = set->bColor? set->bColor : 32; - pfd.cDepthBits = set->bDepth; - pfd.cStencilBits = set->bStencil; - - sys->con->Printf("Pixel format: need %d,%d,%d", pfd.cColorBits, pfd.cDepthBits, pfd.cStencilBits); - - // Find pixel format - int pfi = ChoosePixelFormat(hdc, &pfd); - if (pfi == 0) { - sys->PrintLastError("\nChoosePixelFormat() failed"); - return true; - } - - // Set pixel format - if (SetPixelFormat(hdc, pfi, &pfd) == 0) { - sys->PrintLastError("\nSetPixelFormat() failed"); - return true; - } - - // Retrieve actual pixel format - DescribePixelFormat(hdc, pfi, sizeof(PIXELFORMATDESCRIPTOR), &pfd); - - sys->con->Printf(", using %d,%d,%d\n", pfd.cColorBits, pfd.cDepthBits, pfd.cStencilBits); - - // Prepare secondary device - SetPixelFormat(hdc2, pfi, &pfd); - - // Create contexts - sys->con->Printf("Creating context...\n"); - - hglrc = wglCreateContext(hdc); - if (hglrc == NULL) { - sys->PrintLastError("wglCreateContext() failed"); - return true; - } - hglrc2 = wglCreateContext(hdc2); - wglShareLists(hglrc, hglrc2); - - if (wglMakeCurrent(hdc, hglrc) == 0) { - sys->PrintLastError("wglMakeCurrent() failed"); - return true; - } - - // Load extensions - wglSwapIntervalEXT = NULL; - - wglGetExtensionsStringEXT = (PFNWGLGETEXTENSIONSTRINGEXTPROC)wglGetProcAddress("wglGetExtensionsStringEXT"); - if (wglGetExtensionsStringEXT) { - sys->con->Printf("Loading WGL extensions...\n"); - - char* wgle = wglGetExtensionsStringEXT(); - - if (strstr(wgle, "WGL_EXT_swap_control")) { - sys->con->Printf("using WGL_EXT_swap_control\n"); - wglSwapIntervalEXT = (PFNWGLSWAPINTERVALEXTPROC)wglGetProcAddress("wglSwapIntervalEXT"); - } else { - sys->con->Printf("WGL_EXT_swap_control not supported\n"); - } - } else { - sys->con->Printf("WGL extensions not supported.\n"); - } - // Set swap interval - if (wglSwapIntervalEXT) { - wglSwapIntervalEXT(set->vsync? 1 : 0); - } + glfwSwapInterval(set->vsync ? 1 : 0); return false; } bool sys_openGL_c::Shutdown() { - // Delete context - sys->con->Printf("Deleting context...\n"); - - if (wglMakeCurrent(NULL, NULL) == 0) { - return true; - } - if (wglDeleteContext(hglrc) == 0) { - return true; - } - return false; } void sys_openGL_c::Swap() { - SwapBuffers(hdc); + glfwSwapBuffers((GLFWwindow*)sys->video->GetWindowHandle()); } void* sys_openGL_c::GetProc(const char* name) { - return wglGetProcAddress(name); -} - -bool sys_openGL_c::CaptureSecondary() -{ - return !wglMakeCurrent(hdc2, hglrc2); -} - -bool sys_openGL_c::ReleaseSecondary() -{ - return !wglMakeCurrent(NULL, NULL); + return (void*)glfwGetProcAddress(name); } diff --git a/engine/system/win/sys_video.cpp b/engine/system/win/sys_video.cpp index 6d8d81b..3fffe54 100644 --- a/engine/system/win/sys_video.cpp +++ b/engine/system/win/sys_video.cpp @@ -5,7 +5,15 @@ // Platform: Windows // +#include + #include "sys_local.h" +#include "core.h" + +#include + +#include +#include // ==================== // sys_IVideo Interface @@ -19,6 +27,7 @@ class sys_video_c: public sys_IVideo { void SetActive(bool active); void SetForeground(); bool IsActive(); + void FramebufferSizeChanged(int width, int height); void SizeChanged(int width, int height, bool max); void PosChanged(int x, int y); void GetMinSize(int &width, int &height); @@ -37,21 +46,18 @@ class sys_video_c: public sys_IVideo { sys_main_c* sys = nullptr; bool initialised = false; - HWND hwnd = nullptr; // Window handle + GLFWwindow* wnd = nullptr; - static BOOL __stdcall MonitorEnumProc(HMONITOR hMonitor, HDC hdc, LPRECT rect, LPARAM data); - bool AddMonitor(HMONITOR hMonitor); void RefreshMonitorInfo(); int numMon = 0; // Number of monitors int priMon = 0; // Index of primary monitor struct { - HMONITOR hnd = nullptr; + GLFWmonitor* hnd = nullptr; int left = 0; int top = 0; int width = 0; int height = 0; - char devName[CCHDEVICENAME] = {}; } mon[16]; // Array of monitor specs int defRes[2] = {}; // Default resolution @@ -59,6 +65,21 @@ class sys_video_c: public sys_IVideo { int scrSize[2] = {}; // Screen size int minSize[2] = {}; // Minimum window size char curTitle[512] = {}; // Window title + + bool cursorInWindow = false; + + struct CursorPos { + int x, y; + }; + std::optional lastCursorPos; + + struct ClickEvent + { + std::chrono::system_clock::time_point time; + CursorPos pos; + byte button; + }; + std::optional lastClick; }; sys_IVideo* sys_IVideo::GetHandle(sys_IMain* sysHnd) @@ -80,35 +101,28 @@ sys_video_c::sys_video_c(sys_IMain* sysHnd) strcpy(curTitle, CFG_TITLE); - // Register the window class - WNDCLASS wndClass; - ZeroMemory(&wndClass, sizeof(WNDCLASS)); - wndClass.lpszClassName = CFG_TITLE " Class"; - wndClass.hInstance = sys->hinst; - wndClass.lpfnWndProc = sys_main_c::WndProc; - wndClass.hbrBackground = CreateSolidBrush(CFG_SCON_WINBG); - wndClass.hIcon = sys->icon; - wndClass.hCursor = LoadCursor(NULL, IDC_ARROW); - wndClass.style = CS_DBLCLKS; - if (RegisterClass(&wndClass) == 0) { - sys->Error("Unable to register main window class"); - } + glfwInit(); } sys_video_c::~sys_video_c() { if (initialised) { - // Destroy the window - DestroyWindow(hwnd); - - if (cur.flags & VID_FULLSCREEN) { - // Reset resolution - ChangeDisplaySettingsEx(mon[cur.display].devName, NULL, NULL, 0, NULL); + glfwDestroyWindow(wnd); } + + glfwTerminate(); } - // Unregister the window class - UnregisterClass(CFG_TITLE " Class", sys->hinst); +std::optional> PlatformGetCursorPos() { +#if _WIN32 + POINT curPos; + GetCursorPos(&curPos); + return std::make_pair((double)curPos.x, (double)curPos.y); +#else +#warning LV: Global cursor position queries not implemented yet on this OS. + // TODO(LV): Implement on other OSes + return {}; +#endif } // ================== @@ -119,25 +133,32 @@ int sys_video_c::Apply(sys_vidSet_s* set) { cur = *set; - // Enumerate monitors - priMon = -1; - numMon = 0; - EnumDisplayMonitors(NULL, NULL, &sys_video_c::MonitorEnumProc, (LPARAM)this); + GLFWmonitor** monitors = glfwGetMonitors(&numMon); + for (int i = 0; i < numMon; ++i) { + mon[i].hnd = monitors[i]; + glfwGetMonitorPos(monitors[i], &mon[i].left, &mon[i].top); + GLFWvidmode const* mode = glfwGetVideoMode(monitors[i]); + mon[i].width = mode->width; + mon[i].height = mode->height; + } + priMon = 0; // Determine which monitor to create window on if (cur.display >= numMon) { sys->con->Warning("display #%d doesn't exist (max display number is %d)", cur.display, numMon - 1); cur.display = 0; } else if (cur.display < 0) { - // Use monitor containing the mouse cursor - POINT curPos; - GetCursorPos(&curPos); - HMONITOR curMon = MonitorFromPoint(curPos, MONITOR_DEFAULTTOPRIMARY); + // Use monitor containing the mouse cursor if available, otherwise primary monitor cur.display = 0; - for (int m = 0; m < numMon; m++) { - if (mon[m].hnd == curMon) { - cur.display = m; - break; + if (auto curPos = PlatformGetCursorPos()) { + auto [curX, curY] = *curPos; + for (int m = 0; m < numMon; ++m) { + int right = mon[m].left + mon[m].width; + int bottom = mon[m].top + mon[m].height; + if (curX >= mon[m].left && curY >= mon[m].top && curX < right && curY < bottom) { + cur.display = m; + break; + } } } } @@ -155,47 +176,17 @@ int sys_video_c::Apply(sys_vidSet_s* set) Vector2Copy(defRes, cur.mode); } Vector2Copy(cur.mode, vid.size); - if (cur.flags & VID_FULLSCREEN) { - Vector2Copy(cur.mode, scrSize); - if (cur.shown) { - // Change screen resolution - SetActive(true); - } - } else { - Vector2Copy(defRes, scrSize); - } + Vector2Copy(defRes, scrSize); - // Select window styles - int style = WS_POPUP; - if ( !(cur.flags & VID_FULLSCREEN) && (cur.flags & VID_USESAVED || cur.flags & VID_RESIZABLE || cur.mode[0] < defRes[0] || cur.mode[1] < defRes[1]) ) { - style|= WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX; - if (cur.flags & VID_RESIZABLE) { - style|= WS_SIZEBOX | WS_MAXIMIZEBOX; - } - } - int exStyle = (cur.flags & VID_TOPMOST)? WS_EX_TOPMOST : 0; + struct WindowRect { + int left, top; + int right, bottom; + }; // Get window rectangle - RECT wrec; + WindowRect wrec; if (cur.flags & VID_USESAVED) { - POINT savePos = { cur.save.pos[0], cur.save.pos[1] }; - HMONITOR winMon = MonitorFromPoint(savePos, MONITOR_DEFAULTTONULL); - if (winMon == NULL) { - // Window is offscreen, move it to the nearest monitor - winMon = MonitorFromPoint(savePos, MONITOR_DEFAULTTONEAREST); - for (int m = 0; m < numMon; m++) { - if (mon[m].hnd == winMon) { - wrec.left = 0; - wrec.top = 0; - wrec.right = 1000; - wrec.bottom = 1000; - AdjustWindowRectEx(&wrec, style, FALSE, exStyle); - cur.save.pos[0] = mon[m].left - wrec.left; - cur.save.pos[1] = mon[m].top - wrec.top; - break; - } - } - } + // TODO(LV): Move offscreen windows to a monitor. wrec.left = cur.save.pos[0]; wrec.top = cur.save.pos[1]; if (cur.save.maximised) { @@ -212,71 +203,160 @@ int sys_video_c::Apply(sys_vidSet_s* set) vid.pos[1] = wrec.top; wrec.right = wrec.left + cur.mode[0]; wrec.bottom = wrec.top + cur.mode[1]; - AdjustWindowRectEx(&wrec, style, FALSE, exStyle); + // TODO(LV): Verify that stored coordinates are aligned right. if (initialised) { - SetWindowLong(hwnd, GWL_STYLE, style); - SetWindowLong(hwnd, GWL_EXSTYLE, exStyle); - SetWindowPos(hwnd, NULL, wrec.left, wrec.top, wrec.right - wrec.left, wrec.bottom - wrec.top, SWP_FRAMECHANGED); - SetWindowText(hwnd, curTitle); + glfwSetWindowSize(wnd, cur.mode[0], cur.mode[1]); if (cur.shown) { - ShowWindow(hwnd, SW_SHOW); - SetFocus(hwnd); - HWND fgHwnd = GetForegroundWindow(); - if (fgHwnd) { - DWORD processId = 0; - GetWindowThreadProcessId(fgHwnd, &processId); - if (processId == GetCurrentProcessId()) { - SetForegroundWindow(hwnd); - } else { - FlashWindow(hwnd, FALSE); - } - } else { - SetForegroundWindow(hwnd); - } + glfwShowWindow(wnd); sys->conWin->SetForeground(); } - } else { - if (cur.shown) { - style |= WS_VISIBLE; - } - if (cur.flags & VID_MAXIMIZE) { - style |= WS_MAXIMIZE; - } - hwnd = CreateWindowEx( - exStyle, CFG_TITLE " Class", curTitle, style, - wrec.left, wrec.top, wrec.right - wrec.left, wrec.bottom - wrec.top, - NULL, NULL, sys->hinst, NULL - ); - if (hwnd == NULL) { - sys->Error("Unable to create window"); - return 0; - } - SetWindowLongPtr(hwnd, GWLP_USERDATA, (LONG_PTR)sys); - } - - // Calculate minimum size - if (cur.flags & VID_RESIZABLE && cur.minSize[0]) { - RECT rec; - rec.left = 0; - rec.top = 0; - rec.right = cur.minSize[0]; - rec.bottom = cur.minSize[1]; - AdjustWindowRectEx(&rec, style, FALSE, exStyle); - minSize[0] = rec.right - rec.left; - minSize[1] = rec.bottom - rec.top; } - - if (initialised && (cur.flags & VID_MAXIMIZE)) { - ShowWindow(hwnd, SW_MAXIMIZE); + else { + glfwWindowHint(GLFW_RESIZABLE, !!(cur.flags & VID_RESIZABLE)); + glfwWindowHint(GLFW_VISIBLE, GLFW_TRUE); + glfwWindowHint(GLFW_FLOATING, !!(cur.flags & VID_TOPMOST)); + glfwWindowHint(GLFW_MAXIMIZED, !!(cur.flags & VID_MAXIMIZE)); + glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API); + glfwWindowHint(GLFW_CONTEXT_CREATION_API, GLFW_EGL_CONTEXT_API); + glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2); + glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0); + glfwWindowHint(GLFW_DEPTH_BITS, 24); + //glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_COMPAT_PROFILE); + wnd = glfwCreateWindow(cur.mode[0], cur.mode[1], curTitle, nullptr, nullptr); + if (!wnd) { + char const* errDesc = "Unknown error"; + glfwGetError(&errDesc); + sys->con->Printf("Could not create window, %s\n", errDesc); + } + glfwMakeContextCurrent(wnd); + gladLoadGLES2(glfwGetProcAddress); + glfwSetWindowUserPointer(wnd, sys); + glfwSetCursorEnterCallback(wnd, [](GLFWwindow* wnd, int entered) { + auto sys = (sys_main_c*)glfwGetWindowUserPointer(wnd); + auto video = (sys_video_c*)sys->video; + bool is_inside = !!entered; + video->cursorInWindow = is_inside; + if (!is_inside) { + video->lastCursorPos.reset(); + } + }); + glfwSetCursorPosCallback(wnd, [](GLFWwindow* wnd, double x, double y) { + auto sys = (sys_main_c*)glfwGetWindowUserPointer(wnd); + auto video = (sys_video_c*)sys->video; + video->lastCursorPos = CursorPos{(int)x, (int)y}; + }); + glfwSetWindowCloseCallback(wnd, [](GLFWwindow* wnd) { + auto sys = (sys_main_c*)glfwGetWindowUserPointer(wnd); + glfwSetWindowShouldClose(wnd, sys->initialised && sys->core->CanExit()); + }); + glfwSetFramebufferSizeCallback(wnd, [](GLFWwindow* wnd, int width, int height) { + auto sys = (sys_main_c*)glfwGetWindowUserPointer(wnd); + sys->video->FramebufferSizeChanged(width, height); + }); + glfwSetWindowSizeCallback(wnd, [](GLFWwindow* wnd, int width, int height) { + auto sys = (sys_main_c*)glfwGetWindowUserPointer(wnd); + bool maximized = glfwGetWindowAttrib(wnd, GLFW_MAXIMIZED); + sys->video->SizeChanged(width, height, maximized); + }); + glfwSetWindowPosCallback(wnd, [](GLFWwindow* wnd, int x, int y) { + auto sys = (sys_main_c*)glfwGetWindowUserPointer(wnd); + sys->video->PosChanged(x, y); + }); + glfwSetCharCallback(wnd, [](GLFWwindow* wnd, uint32_t codepoint) { + auto sys = (sys_main_c*)glfwGetWindowUserPointer(wnd); + sys->core->KeyEvent(codepoint, KE_CHAR); + }); + glfwSetKeyCallback(wnd, [](GLFWwindow* wnd, int key, int scancode, int action, int mods) { + auto sys = (sys_main_c*)glfwGetWindowUserPointer(wnd); + if (byte k = sys->GlfwKeyToKey(key)) { + bool is_down = action == GLFW_PRESS || action == GLFW_REPEAT; + sys->heldKeyState[k] = is_down; + sys->core->KeyEvent(k, is_down ? KE_KEYDOWN : KE_KEYUP); + char ch = sys->GlfwKeyExtraChar(key); + if (is_down && ch) { + sys->core->KeyEvent(ch, KE_CHAR); + } + } + }); + glfwSetMouseButtonCallback(wnd, [](GLFWwindow* wnd, int button, int action, int mods) { + auto sys = (sys_main_c*)glfwGetWindowUserPointer(wnd); + auto video = (sys_video_c*)sys->video; + int sg_key; + switch(button) { + case GLFW_MOUSE_BUTTON_LEFT: + sg_key = KEY_LMOUSE; + break; + case GLFW_MOUSE_BUTTON_MIDDLE: + sg_key = KEY_MMOUSE; + break; + case GLFW_MOUSE_BUTTON_RIGHT: + sg_key = KEY_RMOUSE; + break; + case GLFW_MOUSE_BUTTON_4: + sg_key = KEY_MOUSE4; + break; + case GLFW_MOUSE_BUTTON_5: + sg_key = KEY_MOUSE5; + break; + default: + return; + } + bool is_down = action == GLFW_PRESS; + sys->heldKeyState[sg_key] = is_down; + keyEvent_s sg_type = is_down ? KE_KEYDOWN : KE_KEYUP; + + // Determine if a click is a doubleclick by checking for recent nearby click of same type. + auto& lastClick = video->lastClick; + if (is_down && video->lastCursorPos) { + auto now = std::chrono::system_clock::now(); + + // Was the last click with the same button? + if (lastClick && lastClick->button == sg_key) { + std::chrono::milliseconds const DOUBLECLICK_DELAY(500); + int const DOUBLECLICK_RANGE = 5; + + // Was it recent and close enough? + auto durationSinceClick = now - lastClick->time; + auto prevPos = lastClick->pos; + auto curPos = *video->lastCursorPos; + if (durationSinceClick <= DOUBLECLICK_DELAY && + abs(prevPos.x - curPos.x) <= DOUBLECLICK_RANGE && + abs(prevPos.y - curPos.y) <= DOUBLECLICK_RANGE) + { + sg_type = KE_DBLCLK; + } + } + if (sg_type == KE_DBLCLK) { + lastClick.reset(); + } + else { + ClickEvent e; + e.time = now; + e.pos = *video->lastCursorPos; + e.button = sg_key; + lastClick = e; + } + } + sys->core->KeyEvent(sg_key, sg_type); + }); + glfwSetScrollCallback(wnd, [](GLFWwindow* wnd, double xoffset, double yoffset) { + auto sys = (sys_main_c*)glfwGetWindowUserPointer(wnd); + if (yoffset > 0) { + sys->core->KeyEvent(KEY_MWHEELUP, KE_KEYDOWN); + sys->core->KeyEvent(KEY_MWHEELUP, KE_KEYUP); + } else if (yoffset < 0) { + sys->core->KeyEvent(KEY_MWHEELDOWN, KE_KEYDOWN); + sys->core->KeyEvent(KEY_MWHEELDOWN, KE_KEYUP); + } + }); } - GetClientRect(hwnd, &wrec); - vid.size[0] = wrec.right; - vid.size[1] = wrec.bottom; + glfwSetWindowSizeLimits(wnd, cur.minSize[0], cur.minSize[1], GLFW_DONT_CARE, GLFW_DONT_CARE); - // Process any messages generated during application - sys->RunMessages(); + glfwSetWindowPos(wnd, vid.pos[0], vid.pos[1]); + glfwGetFramebufferSize(wnd, &vid.fbSize[0], &vid.fbSize[1]); + glfwGetWindowSize(wnd, &vid.size[0], &vid.size[1]); initialised = true; return 0; @@ -284,65 +364,26 @@ int sys_video_c::Apply(sys_vidSet_s* set) void sys_video_c::SetActive(bool active) { - if ((cur.flags & VID_FULLSCREEN) && (cur.mode[0] != defRes[0] || cur.mode[1] != defRes[1] || cur.depth)) { - // Fullscreen and mode specified - if (active) { - // Change resolution - DEVMODE dm; - ZeroMemory(&dm, sizeof(dm)); - dm.dmSize = sizeof(dm); - dm.dmPelsWidth = cur.mode[0]; - dm.dmPelsHeight = cur.mode[1]; - dm.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT; - if (cur.depth) { - dm.dmFields|= DM_BITSPERPEL; - dm.dmBitsPerPel = cur.depth; - } - if (ChangeDisplaySettingsEx(mon[cur.display].devName, &dm, NULL, CDS_FULLSCREEN, NULL) != DISP_CHANGE_SUCCESSFUL) { - sys->con->Warning("failed to change screen resolution"); - } - - // Make sure window is positioned correctly - RefreshMonitorInfo(); - SetWindowPos(hwnd, NULL, mon[cur.display].left, mon[cur.display].top, 0, 0, SWP_NOSIZE | SWP_NOZORDER); - } else { - // Change back to default - ChangeDisplaySettingsEx(mon[cur.display].devName, NULL, NULL, CDS_FULLSCREEN, NULL); - } - } - - if (initialised && (cur.flags & VID_TOPMOST) && IsWindowVisible(hwnd)) { - if (active) { - // Make it topmost - SetWindowPos(hwnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE); - } else { - if (cur.flags & VID_FULLSCREEN) { - // Just minimize it - ShowWindow(hwnd, SW_MINIMIZE); - } else { - HWND fghwnd = GetForegroundWindow(); - if (GetWindowLong(fghwnd, GWL_EXSTYLE) & WS_EX_TOPMOST) { - // Switching to a topmost window, put our window at the top of all non-topmost windows - SetWindowPos(hwnd, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE); - } else { - // Switching to a non-topmost window, put our window behind it - SetWindowPos(hwnd, fghwnd, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE); - } - } - } + if (initialised) { + glfwFocusWindow(wnd); } } void sys_video_c::SetForeground() { if (initialised) { - SetForegroundWindow(hwnd); + glfwFocusWindow(wnd); } } bool sys_video_c::IsActive() { - return GetForegroundWindow() == hwnd; + return glfwGetWindowAttrib(wnd, GLFW_FOCUSED); +} + +void sys_video_c::FramebufferSizeChanged(int width, int height) { + vid.fbSize[0] = width; + vid.fbSize[1] = height; } void sys_video_c::SizeChanged(int width, int height, bool max) @@ -367,99 +408,64 @@ void sys_video_c::GetMinSize(int &width, int &height) void sys_video_c::SetVisible(bool vis) { if ( !initialised ) return; - ShowWindow(hwnd, vis? SW_SHOW : SW_HIDE); + if (vis) { + glfwShowWindow(wnd); + } else { + glfwHideWindow(wnd); + } } bool sys_video_c::IsVisible() { - if ( !initialised || !hwnd ) return false; - return IsWindowVisible(hwnd); + if ( !initialised || !wnd ) return false; + return !!glfwGetWindowAttrib(wnd, GLFW_VISIBLE); } void sys_video_c::SetTitle(const char* title) { strcpy(curTitle, (title && *title)? title : CFG_TITLE); if (initialised) { - SetWindowText(hwnd, curTitle); + glfwSetWindowTitle(wnd, curTitle); } } void* sys_video_c::GetWindowHandle() { - return hwnd; + return wnd; } void sys_video_c::GetRelativeCursor(int &x, int &y) { if ( !initialised ) return; - POINT cp; - GetCursorPos(&cp); - ScreenToClient(hwnd, &cp); - x = cp.x; - y = cp.y; + double xpos, ypos; + glfwGetCursorPos(wnd, &xpos, &ypos); + x = (int)floor(xpos); + y = (int)floor(ypos); } void sys_video_c::SetRelativeCursor(int x, int y) { if ( !initialised ) return; - POINT cp = {x, y}; - ClientToScreen(hwnd, &cp); - SetCursorPos(cp.x, cp.y); + glfwSetCursorPos(wnd, (double)x, (double)y); } bool sys_video_c::IsCursorOverWindow() { - if (initialised && hwnd && IsWindowVisible(hwnd)) + if (initialised && wnd && IsVisible()) { - POINT mousePoint; - if (GetCursorPos(&mousePoint)) { - if (WindowFromPoint(mousePoint) != hwnd) { - return false; - } - } + return cursorInWindow; } return true; } -BOOL __stdcall sys_video_c::MonitorEnumProc(HMONITOR hMonitor, HDC hdc, LPRECT rect, LPARAM data) -{ - sys_video_c* vid = (sys_video_c*)data; - return vid->AddMonitor(hMonitor); -} - -bool sys_video_c::AddMonitor(HMONITOR hMonitor) -{ - MONITORINFOEX info; - info.cbSize = sizeof(MONITORINFOEX); - GetMonitorInfo(hMonitor, &info); - mon[numMon].hnd = hMonitor; - mon[numMon].left = info.rcMonitor.left; - mon[numMon].top = info.rcMonitor.top; - mon[numMon].width = info.rcMonitor.right - info.rcMonitor.left; - mon[numMon].height = info.rcMonitor.bottom - info.rcMonitor.top; - if (info.dwFlags & MONITORINFOF_PRIMARY) { - priMon = numMon; - } - strcpy(mon[numMon].devName, info.szDevice); - return ++numMon < 16; -} - void sys_video_c::RefreshMonitorInfo() { + GLFWmonitor** monitors = glfwGetMonitors(&numMon); for (int m = 0; m < numMon; m++) { - MONITORINFO info; - info.cbSize = sizeof(MONITORINFO); - if (GetMonitorInfo(mon[m].hnd, &info)) { - mon[m].left = info.rcMonitor.left; - mon[m].top = info.rcMonitor.top; - mon[m].width = info.rcMonitor.right - info.rcMonitor.left; - mon[m].height = info.rcMonitor.bottom - info.rcMonitor.top; - } else { - if (m == priMon) sys->Error("Primary monitor no longer exists!"); - mon[m].left = mon[priMon].left; - mon[m].top = mon[priMon].top; - mon[m].width = mon[priMon].width; - mon[m].height = mon[priMon].height; - } + mon[m].hnd = monitors[m]; + glfwGetMonitorPos(monitors[m], &mon[m].left, &mon[m].top); + GLFWvidmode const* mode = glfwGetVideoMode(monitors[m]); + mon[m].width = mode->width; + mon[m].height = mode->height; } } diff --git a/stb_image.h b/stb_image.h new file mode 100644 index 0000000..accef48 --- /dev/null +++ b/stb_image.h @@ -0,0 +1,7762 @@ +/* stb_image - v2.26 - public domain image loader - http://nothings.org/stb + no warranty implied; use at your own risk + + Do this: + #define STB_IMAGE_IMPLEMENTATION + before you include this file in *one* C or C++ file to create the implementation. + + // i.e. it should look like this: + #include ... + #include ... + #include ... + #define STB_IMAGE_IMPLEMENTATION + #include "stb_image.h" + + You can #define STBI_ASSERT(x) before the #include to avoid using assert.h. + And #define STBI_MALLOC, STBI_REALLOC, and STBI_FREE to avoid using malloc,realloc,free + + + QUICK NOTES: + Primarily of interest to game developers and other people who can + avoid problematic images and only need the trivial interface + + JPEG baseline & progressive (12 bpc/arithmetic not supported, same as stock IJG lib) + PNG 1/2/4/8/16-bit-per-channel + + TGA (not sure what subset, if a subset) + BMP non-1bpp, non-RLE + PSD (composited view only, no extra channels, 8/16 bit-per-channel) + + GIF (*comp always reports as 4-channel) + HDR (radiance rgbE format) + PIC (Softimage PIC) + PNM (PPM and PGM binary only) + + Animated GIF still needs a proper API, but here's one way to do it: + http://gist.github.com/urraka/685d9a6340b26b830d49 + + - decode from memory or through FILE (define STBI_NO_STDIO to remove code) + - decode from arbitrary I/O callbacks + - SIMD acceleration on x86/x64 (SSE2) and ARM (NEON) + + Full documentation under "DOCUMENTATION" below. + + +LICENSE + + See end of file for license information. + +RECENT REVISION HISTORY: + + 2.26 (2020-07-13) many minor fixes + 2.25 (2020-02-02) fix warnings + 2.24 (2020-02-02) fix warnings; thread-local failure_reason and flip_vertically + 2.23 (2019-08-11) fix clang static analysis warning + 2.22 (2019-03-04) gif fixes, fix warnings + 2.21 (2019-02-25) fix typo in comment + 2.20 (2019-02-07) support utf8 filenames in Windows; fix warnings and platform ifdefs + 2.19 (2018-02-11) fix warning + 2.18 (2018-01-30) fix warnings + 2.17 (2018-01-29) bugfix, 1-bit BMP, 16-bitness query, fix warnings + 2.16 (2017-07-23) all functions have 16-bit variants; optimizations; bugfixes + 2.15 (2017-03-18) fix png-1,2,4; all Imagenet JPGs; no runtime SSE detection on GCC + 2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs + 2.13 (2016-12-04) experimental 16-bit API, only for PNG so far; fixes + 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes + 2.11 (2016-04-02) 16-bit PNGS; enable SSE2 in non-gcc x64 + RGB-format JPEG; remove white matting in PSD; + allocate large structures on the stack; + correct channel count for PNG & BMP + 2.10 (2016-01-22) avoid warning introduced in 2.09 + 2.09 (2016-01-16) 16-bit TGA; comments in PNM files; STBI_REALLOC_SIZED + + See end of file for full revision history. + + + ============================ Contributors ========================= + + Image formats Extensions, features + Sean Barrett (jpeg, png, bmp) Jetro Lauha (stbi_info) + Nicolas Schulz (hdr, psd) Martin "SpartanJ" Golini (stbi_info) + Jonathan Dummer (tga) James "moose2000" Brown (iPhone PNG) + Jean-Marc Lienher (gif) Ben "Disch" Wenger (io callbacks) + Tom Seddon (pic) Omar Cornut (1/2/4-bit PNG) + Thatcher Ulrich (psd) Nicolas Guillemot (vertical flip) + Ken Miller (pgm, ppm) Richard Mitton (16-bit PSD) + github:urraka (animated gif) Junggon Kim (PNM comments) + Christopher Forseth (animated gif) Daniel Gibson (16-bit TGA) + socks-the-fox (16-bit PNG) + Jeremy Sawicki (handle all ImageNet JPGs) + Optimizations & bugfixes Mikhail Morozov (1-bit BMP) + Fabian "ryg" Giesen Anael Seghezzi (is-16-bit query) + Arseny Kapoulkine + John-Mark Allen + Carmelo J Fdez-Aguera + + Bug & warning fixes + Marc LeBlanc David Woo Guillaume George Martins Mozeiko + Christpher Lloyd Jerry Jansson Joseph Thomson Blazej Dariusz Roszkowski + Phil Jordan Dave Moore Roy Eltham + Hayaki Saito Nathan Reed Won Chun + Luke Graham Johan Duparc Nick Verigakis the Horde3D community + Thomas Ruf Ronny Chevalier github:rlyeh + Janez Zemva John Bartholomew Michal Cichon github:romigrou + Jonathan Blow Ken Hamada Tero Hanninen github:svdijk + Laurent Gomila Cort Stratton github:snagar + Aruelien Pocheville Sergio Gonzalez Thibault Reuille github:Zelex + Cass Everitt Ryamond Barbiero github:grim210 + Paul Du Bois Engin Manap Aldo Culquicondor github:sammyhw + Philipp Wiesemann Dale Weiler Oriol Ferrer Mesia github:phprus + Josh Tobin Matthew Gregan github:poppolopoppo + Julian Raschke Gregory Mullen Christian Floisand github:darealshinji + Baldur Karlsson Kevin Schmidt JR Smith github:Michaelangel007 + Brad Weinberger Matvey Cherevko [reserved] + Luca Sas Alexander Veselov Zack Middleton [reserved] + Ryan C. Gordon [reserved] [reserved] + DO NOT ADD YOUR NAME HERE + + To add your name to the credits, pick a random blank space in the middle and fill it. + 80% of merge conflicts on stb PRs are due to people adding their name at the end + of the credits. +*/ + +#ifndef STBI_INCLUDE_STB_IMAGE_H +#define STBI_INCLUDE_STB_IMAGE_H + +// DOCUMENTATION +// +// Limitations: +// - no 12-bit-per-channel JPEG +// - no JPEGs with arithmetic coding +// - GIF always returns *comp=4 +// +// Basic usage (see HDR discussion below for HDR usage): +// int x,y,n; +// unsigned char *data = stbi_load(filename, &x, &y, &n, 0); +// // ... process data if not NULL ... +// // ... x = width, y = height, n = # 8-bit components per pixel ... +// // ... replace '0' with '1'..'4' to force that many components per pixel +// // ... but 'n' will always be the number that it would have been if you said 0 +// stbi_image_free(data) +// +// Standard parameters: +// int *x -- outputs image width in pixels +// int *y -- outputs image height in pixels +// int *channels_in_file -- outputs # of image components in image file +// int desired_channels -- if non-zero, # of image components requested in result +// +// The return value from an image loader is an 'unsigned char *' which points +// to the pixel data, or NULL on an allocation failure or if the image is +// corrupt or invalid. The pixel data consists of *y scanlines of *x pixels, +// with each pixel consisting of N interleaved 8-bit components; the first +// pixel pointed to is top-left-most in the image. There is no padding between +// image scanlines or between pixels, regardless of format. The number of +// components N is 'desired_channels' if desired_channels is non-zero, or +// *channels_in_file otherwise. If desired_channels is non-zero, +// *channels_in_file has the number of components that _would_ have been +// output otherwise. E.g. if you set desired_channels to 4, you will always +// get RGBA output, but you can check *channels_in_file to see if it's trivially +// opaque because e.g. there were only 3 channels in the source image. +// +// An output image with N components has the following components interleaved +// in this order in each pixel: +// +// N=#comp components +// 1 grey +// 2 grey, alpha +// 3 red, green, blue +// 4 red, green, blue, alpha +// +// If image loading fails for any reason, the return value will be NULL, +// and *x, *y, *channels_in_file will be unchanged. The function +// stbi_failure_reason() can be queried for an extremely brief, end-user +// unfriendly explanation of why the load failed. Define STBI_NO_FAILURE_STRINGS +// to avoid compiling these strings at all, and STBI_FAILURE_USERMSG to get slightly +// more user-friendly ones. +// +// Paletted PNG, BMP, GIF, and PIC images are automatically depalettized. +// +// =========================================================================== +// +// UNICODE: +// +// If compiling for Windows and you wish to use Unicode filenames, compile +// with +// #define STBI_WINDOWS_UTF8 +// and pass utf8-encoded filenames. Call stbi_convert_wchar_to_utf8 to convert +// Windows wchar_t filenames to utf8. +// +// =========================================================================== +// +// Philosophy +// +// stb libraries are designed with the following priorities: +// +// 1. easy to use +// 2. easy to maintain +// 3. good performance +// +// Sometimes I let "good performance" creep up in priority over "easy to maintain", +// and for best performance I may provide less-easy-to-use APIs that give higher +// performance, in addition to the easy-to-use ones. Nevertheless, it's important +// to keep in mind that from the standpoint of you, a client of this library, +// all you care about is #1 and #3, and stb libraries DO NOT emphasize #3 above all. +// +// Some secondary priorities arise directly from the first two, some of which +// provide more explicit reasons why performance can't be emphasized. +// +// - Portable ("ease of use") +// - Small source code footprint ("easy to maintain") +// - No dependencies ("ease of use") +// +// =========================================================================== +// +// I/O callbacks +// +// I/O callbacks allow you to read from arbitrary sources, like packaged +// files or some other source. Data read from callbacks are processed +// through a small internal buffer (currently 128 bytes) to try to reduce +// overhead. +// +// The three functions you must define are "read" (reads some bytes of data), +// "skip" (skips some bytes of data), "eof" (reports if the stream is at the end). +// +// =========================================================================== +// +// SIMD support +// +// The JPEG decoder will try to automatically use SIMD kernels on x86 when +// supported by the compiler. For ARM Neon support, you must explicitly +// request it. +// +// (The old do-it-yourself SIMD API is no longer supported in the current +// code.) +// +// On x86, SSE2 will automatically be used when available based on a run-time +// test; if not, the generic C versions are used as a fall-back. On ARM targets, +// the typical path is to have separate builds for NEON and non-NEON devices +// (at least this is true for iOS and Android). Therefore, the NEON support is +// toggled by a build flag: define STBI_NEON to get NEON loops. +// +// If for some reason you do not want to use any of SIMD code, or if +// you have issues compiling it, you can disable it entirely by +// defining STBI_NO_SIMD. +// +// =========================================================================== +// +// HDR image support (disable by defining STBI_NO_HDR) +// +// stb_image supports loading HDR images in general, and currently the Radiance +// .HDR file format specifically. You can still load any file through the existing +// interface; if you attempt to load an HDR file, it will be automatically remapped +// to LDR, assuming gamma 2.2 and an arbitrary scale factor defaulting to 1; +// both of these constants can be reconfigured through this interface: +// +// stbi_hdr_to_ldr_gamma(2.2f); +// stbi_hdr_to_ldr_scale(1.0f); +// +// (note, do not use _inverse_ constants; stbi_image will invert them +// appropriately). +// +// Additionally, there is a new, parallel interface for loading files as +// (linear) floats to preserve the full dynamic range: +// +// float *data = stbi_loadf(filename, &x, &y, &n, 0); +// +// If you load LDR images through this interface, those images will +// be promoted to floating point values, run through the inverse of +// constants corresponding to the above: +// +// stbi_ldr_to_hdr_scale(1.0f); +// stbi_ldr_to_hdr_gamma(2.2f); +// +// Finally, given a filename (or an open file or memory block--see header +// file for details) containing image data, you can query for the "most +// appropriate" interface to use (that is, whether the image is HDR or +// not), using: +// +// stbi_is_hdr(char *filename); +// +// =========================================================================== +// +// iPhone PNG support: +// +// By default we convert iphone-formatted PNGs back to RGB, even though +// they are internally encoded differently. You can disable this conversion +// by calling stbi_convert_iphone_png_to_rgb(0), in which case +// you will always just get the native iphone "format" through (which +// is BGR stored in RGB). +// +// Call stbi_set_unpremultiply_on_load(1) as well to force a divide per +// pixel to remove any premultiplied alpha *only* if the image file explicitly +// says there's premultiplied data (currently only happens in iPhone images, +// and only if iPhone convert-to-rgb processing is on). +// +// =========================================================================== +// +// ADDITIONAL CONFIGURATION +// +// - You can suppress implementation of any of the decoders to reduce +// your code footprint by #defining one or more of the following +// symbols before creating the implementation. +// +// STBI_NO_JPEG +// STBI_NO_PNG +// STBI_NO_BMP +// STBI_NO_PSD +// STBI_NO_TGA +// STBI_NO_GIF +// STBI_NO_HDR +// STBI_NO_PIC +// STBI_NO_PNM (.ppm and .pgm) +// +// - You can request *only* certain decoders and suppress all other ones +// (this will be more forward-compatible, as addition of new decoders +// doesn't require you to disable them explicitly): +// +// STBI_ONLY_JPEG +// STBI_ONLY_PNG +// STBI_ONLY_BMP +// STBI_ONLY_PSD +// STBI_ONLY_TGA +// STBI_ONLY_GIF +// STBI_ONLY_HDR +// STBI_ONLY_PIC +// STBI_ONLY_PNM (.ppm and .pgm) +// +// - If you use STBI_NO_PNG (or _ONLY_ without PNG), and you still +// want the zlib decoder to be available, #define STBI_SUPPORT_ZLIB +// +// - If you define STBI_MAX_DIMENSIONS, stb_image will reject images greater +// than that size (in either width or height) without further processing. +// This is to let programs in the wild set an upper bound to prevent +// denial-of-service attacks on untrusted data, as one could generate a +// valid image of gigantic dimensions and force stb_image to allocate a +// huge block of memory and spend disproportionate time decoding it. By +// default this is set to (1 << 24), which is 16777216, but that's still +// very big. + +#ifndef STBI_NO_STDIO +#include +#endif // STBI_NO_STDIO + +#define STBI_VERSION 1 + +enum +{ + STBI_default = 0, // only used for desired_channels + + STBI_grey = 1, + STBI_grey_alpha = 2, + STBI_rgb = 3, + STBI_rgb_alpha = 4 +}; + +#include +typedef unsigned char stbi_uc; +typedef unsigned short stbi_us; + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef STBIDEF +#ifdef STB_IMAGE_STATIC +#define STBIDEF static +#else +#define STBIDEF extern +#endif +#endif + +////////////////////////////////////////////////////////////////////////////// +// +// PRIMARY API - works on images of any type +// + +// +// load image by filename, open file, or memory buffer +// + +typedef struct +{ + int (*read) (void *user,char *data,int size); // fill 'data' with 'size' bytes. return number of bytes actually read + void (*skip) (void *user,int n); // skip the next 'n' bytes, or 'unget' the last -n bytes if negative + int (*eof) (void *user); // returns nonzero if we are at end of file/data +} stbi_io_callbacks; + +//////////////////////////////////// +// +// 8-bits-per-channel interface +// + +STBIDEF stbi_uc *stbi_load_from_memory (stbi_uc const *buffer, int len , int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk , void *user, int *x, int *y, int *channels_in_file, int desired_channels); + +#ifndef STBI_NO_STDIO +STBIDEF stbi_uc *stbi_load (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_uc *stbi_load_from_file (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); +// for stbi_load_from_file, file pointer is left pointing immediately after image +#endif + +#ifndef STBI_NO_GIF +STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp); +#endif + +#ifdef STBI_WINDOWS_UTF8 +STBIDEF int stbi_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input); +#endif + +//////////////////////////////////// +// +// 16-bits-per-channel interface +// + +STBIDEF stbi_us *stbi_load_16_from_memory (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels); + +#ifndef STBI_NO_STDIO +STBIDEF stbi_us *stbi_load_16 (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_us *stbi_load_from_file_16(FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); +#endif + +//////////////////////////////////// +// +// float-per-channel interface +// +#ifndef STBI_NO_LINEAR + STBIDEF float *stbi_loadf_from_memory (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels); + STBIDEF float *stbi_loadf_from_callbacks (stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels); + + #ifndef STBI_NO_STDIO + STBIDEF float *stbi_loadf (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); + STBIDEF float *stbi_loadf_from_file (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); + #endif +#endif + +#ifndef STBI_NO_HDR + STBIDEF void stbi_hdr_to_ldr_gamma(float gamma); + STBIDEF void stbi_hdr_to_ldr_scale(float scale); +#endif // STBI_NO_HDR + +#ifndef STBI_NO_LINEAR + STBIDEF void stbi_ldr_to_hdr_gamma(float gamma); + STBIDEF void stbi_ldr_to_hdr_scale(float scale); +#endif // STBI_NO_LINEAR + +// stbi_is_hdr is always defined, but always returns false if STBI_NO_HDR +STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user); +STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len); +#ifndef STBI_NO_STDIO +STBIDEF int stbi_is_hdr (char const *filename); +STBIDEF int stbi_is_hdr_from_file(FILE *f); +#endif // STBI_NO_STDIO + + +// get a VERY brief reason for failure +// on most compilers (and ALL modern mainstream compilers) this is threadsafe +STBIDEF const char *stbi_failure_reason (void); + +// free the loaded image -- this is just free() +STBIDEF void stbi_image_free (void *retval_from_stbi_load); + +// get image dimensions & components without fully decoding +STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp); +STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp); +STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len); +STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *clbk, void *user); + +#ifndef STBI_NO_STDIO +STBIDEF int stbi_info (char const *filename, int *x, int *y, int *comp); +STBIDEF int stbi_info_from_file (FILE *f, int *x, int *y, int *comp); +STBIDEF int stbi_is_16_bit (char const *filename); +STBIDEF int stbi_is_16_bit_from_file(FILE *f); +#endif + + + +// for image formats that explicitly notate that they have premultiplied alpha, +// we just return the colors as stored in the file. set this flag to force +// unpremultiplication. results are undefined if the unpremultiply overflow. +STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply); + +// indicate whether we should process iphone images back to canonical format, +// or just pass them through "as-is" +STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert); + +// flip the image vertically, so the first pixel in the output array is the bottom left +STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip); + +// as above, but only applies to images loaded on the thread that calls the function +// this function is only available if your compiler supports thread-local variables; +// calling it will fail to link if your compiler doesn't +STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip); + +// ZLIB client - used by PNG, available for other purposes + +STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen); +STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header); +STBIDEF char *stbi_zlib_decode_malloc(const char *buffer, int len, int *outlen); +STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, const char *ibuffer, int ilen); + +STBIDEF char *stbi_zlib_decode_noheader_malloc(const char *buffer, int len, int *outlen); +STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen); + + +#ifdef __cplusplus +} +#endif + +// +// +//// end header file ///////////////////////////////////////////////////// +#endif // STBI_INCLUDE_STB_IMAGE_H + +#ifdef STB_IMAGE_IMPLEMENTATION + +#if defined(STBI_ONLY_JPEG) || defined(STBI_ONLY_PNG) || defined(STBI_ONLY_BMP) \ + || defined(STBI_ONLY_TGA) || defined(STBI_ONLY_GIF) || defined(STBI_ONLY_PSD) \ + || defined(STBI_ONLY_HDR) || defined(STBI_ONLY_PIC) || defined(STBI_ONLY_PNM) \ + || defined(STBI_ONLY_ZLIB) + #ifndef STBI_ONLY_JPEG + #define STBI_NO_JPEG + #endif + #ifndef STBI_ONLY_PNG + #define STBI_NO_PNG + #endif + #ifndef STBI_ONLY_BMP + #define STBI_NO_BMP + #endif + #ifndef STBI_ONLY_PSD + #define STBI_NO_PSD + #endif + #ifndef STBI_ONLY_TGA + #define STBI_NO_TGA + #endif + #ifndef STBI_ONLY_GIF + #define STBI_NO_GIF + #endif + #ifndef STBI_ONLY_HDR + #define STBI_NO_HDR + #endif + #ifndef STBI_ONLY_PIC + #define STBI_NO_PIC + #endif + #ifndef STBI_ONLY_PNM + #define STBI_NO_PNM + #endif +#endif + +#if defined(STBI_NO_PNG) && !defined(STBI_SUPPORT_ZLIB) && !defined(STBI_NO_ZLIB) +#define STBI_NO_ZLIB +#endif + + +#include +#include // ptrdiff_t on osx +#include +#include +#include + +#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) +#include // ldexp, pow +#endif + +#ifndef STBI_NO_STDIO +#include +#endif + +#ifndef STBI_ASSERT +#include +#define STBI_ASSERT(x) assert(x) +#endif + +#ifdef __cplusplus +#define STBI_EXTERN extern "C" +#else +#define STBI_EXTERN extern +#endif + + +#ifndef _MSC_VER + #ifdef __cplusplus + #define stbi_inline inline + #else + #define stbi_inline + #endif +#else + #define stbi_inline __forceinline +#endif + +#ifndef STBI_NO_THREAD_LOCALS + #if defined(__cplusplus) && __cplusplus >= 201103L + #define STBI_THREAD_LOCAL thread_local + #elif defined(__GNUC__) && __GNUC__ < 5 + #define STBI_THREAD_LOCAL __thread + #elif defined(_MSC_VER) + #define STBI_THREAD_LOCAL __declspec(thread) + #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L && !defined(__STDC_NO_THREADS__) + #define STBI_THREAD_LOCAL _Thread_local + #endif + + #ifndef STBI_THREAD_LOCAL + #if defined(__GNUC__) + #define STBI_THREAD_LOCAL __thread + #endif + #endif +#endif + +#ifdef _MSC_VER +typedef unsigned short stbi__uint16; +typedef signed short stbi__int16; +typedef unsigned int stbi__uint32; +typedef signed int stbi__int32; +#else +#include +typedef uint16_t stbi__uint16; +typedef int16_t stbi__int16; +typedef uint32_t stbi__uint32; +typedef int32_t stbi__int32; +#endif + +// should produce compiler error if size is wrong +typedef unsigned char validate_uint32[sizeof(stbi__uint32)==4 ? 1 : -1]; + +#ifdef _MSC_VER +#define STBI_NOTUSED(v) (void)(v) +#else +#define STBI_NOTUSED(v) (void)sizeof(v) +#endif + +#ifdef _MSC_VER +#define STBI_HAS_LROTL +#endif + +#ifdef STBI_HAS_LROTL + #define stbi_lrot(x,y) _lrotl(x,y) +#else + #define stbi_lrot(x,y) (((x) << (y)) | ((x) >> (32 - (y)))) +#endif + +#if defined(STBI_MALLOC) && defined(STBI_FREE) && (defined(STBI_REALLOC) || defined(STBI_REALLOC_SIZED)) +// ok +#elif !defined(STBI_MALLOC) && !defined(STBI_FREE) && !defined(STBI_REALLOC) && !defined(STBI_REALLOC_SIZED) +// ok +#else +#error "Must define all or none of STBI_MALLOC, STBI_FREE, and STBI_REALLOC (or STBI_REALLOC_SIZED)." +#endif + +#ifndef STBI_MALLOC +#define STBI_MALLOC(sz) malloc(sz) +#define STBI_REALLOC(p,newsz) realloc(p,newsz) +#define STBI_FREE(p) free(p) +#endif + +#ifndef STBI_REALLOC_SIZED +#define STBI_REALLOC_SIZED(p,oldsz,newsz) STBI_REALLOC(p,newsz) +#endif + +// x86/x64 detection +#if defined(__x86_64__) || defined(_M_X64) +#define STBI__X64_TARGET +#elif defined(__i386) || defined(_M_IX86) +#define STBI__X86_TARGET +#endif + +#if defined(__GNUC__) && defined(STBI__X86_TARGET) && !defined(__SSE2__) && !defined(STBI_NO_SIMD) +// gcc doesn't support sse2 intrinsics unless you compile with -msse2, +// which in turn means it gets to use SSE2 everywhere. This is unfortunate, +// but previous attempts to provide the SSE2 functions with runtime +// detection caused numerous issues. The way architecture extensions are +// exposed in GCC/Clang is, sadly, not really suited for one-file libs. +// New behavior: if compiled with -msse2, we use SSE2 without any +// detection; if not, we don't use it at all. +#define STBI_NO_SIMD +#endif + +#if defined(__MINGW32__) && defined(STBI__X86_TARGET) && !defined(STBI_MINGW_ENABLE_SSE2) && !defined(STBI_NO_SIMD) +// Note that __MINGW32__ doesn't actually mean 32-bit, so we have to avoid STBI__X64_TARGET +// +// 32-bit MinGW wants ESP to be 16-byte aligned, but this is not in the +// Windows ABI and VC++ as well as Windows DLLs don't maintain that invariant. +// As a result, enabling SSE2 on 32-bit MinGW is dangerous when not +// simultaneously enabling "-mstackrealign". +// +// See https://github.com/nothings/stb/issues/81 for more information. +// +// So default to no SSE2 on 32-bit MinGW. If you've read this far and added +// -mstackrealign to your build settings, feel free to #define STBI_MINGW_ENABLE_SSE2. +#define STBI_NO_SIMD +#endif + +#if !defined(STBI_NO_SIMD) && (defined(STBI__X86_TARGET) || defined(STBI__X64_TARGET)) +#define STBI_SSE2 +#include + +#ifdef _MSC_VER + +#if _MSC_VER >= 1400 // not VC6 +#include // __cpuid +static int stbi__cpuid3(void) +{ + int info[4]; + __cpuid(info,1); + return info[3]; +} +#else +static int stbi__cpuid3(void) +{ + int res; + __asm { + mov eax,1 + cpuid + mov res,edx + } + return res; +} +#endif + +#define STBI_SIMD_ALIGN(type, name) __declspec(align(16)) type name + +#if !defined(STBI_NO_JPEG) && defined(STBI_SSE2) +static int stbi__sse2_available(void) +{ + int info3 = stbi__cpuid3(); + return ((info3 >> 26) & 1) != 0; +} +#endif + +#else // assume GCC-style if not VC++ +#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16))) + +#if !defined(STBI_NO_JPEG) && defined(STBI_SSE2) +static int stbi__sse2_available(void) +{ + // If we're even attempting to compile this on GCC/Clang, that means + // -msse2 is on, which means the compiler is allowed to use SSE2 + // instructions at will, and so are we. + return 1; +} +#endif + +#endif +#endif + +// ARM NEON +#if defined(STBI_NO_SIMD) && defined(STBI_NEON) +#undef STBI_NEON +#endif + +#ifdef STBI_NEON +#include +// assume GCC or Clang on ARM targets +#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16))) +#endif + +#ifndef STBI_SIMD_ALIGN +#define STBI_SIMD_ALIGN(type, name) type name +#endif + +#ifndef STBI_MAX_DIMENSIONS +#define STBI_MAX_DIMENSIONS (1 << 24) +#endif + +/////////////////////////////////////////////// +// +// stbi__context struct and start_xxx functions + +// stbi__context structure is our basic context used by all images, so it +// contains all the IO context, plus some basic image information +typedef struct +{ + stbi__uint32 img_x, img_y; + int img_n, img_out_n; + + stbi_io_callbacks io; + void *io_user_data; + + int read_from_callbacks; + int buflen; + stbi_uc buffer_start[128]; + int callback_already_read; + + stbi_uc *img_buffer, *img_buffer_end; + stbi_uc *img_buffer_original, *img_buffer_original_end; +} stbi__context; + + +static void stbi__refill_buffer(stbi__context *s); + +// initialize a memory-decode context +static void stbi__start_mem(stbi__context *s, stbi_uc const *buffer, int len) +{ + s->io.read = NULL; + s->read_from_callbacks = 0; + s->callback_already_read = 0; + s->img_buffer = s->img_buffer_original = (stbi_uc *) buffer; + s->img_buffer_end = s->img_buffer_original_end = (stbi_uc *) buffer+len; +} + +// initialize a callback-based context +static void stbi__start_callbacks(stbi__context *s, stbi_io_callbacks *c, void *user) +{ + s->io = *c; + s->io_user_data = user; + s->buflen = sizeof(s->buffer_start); + s->read_from_callbacks = 1; + s->callback_already_read = 0; + s->img_buffer = s->img_buffer_original = s->buffer_start; + stbi__refill_buffer(s); + s->img_buffer_original_end = s->img_buffer_end; +} + +#ifndef STBI_NO_STDIO + +static int stbi__stdio_read(void *user, char *data, int size) +{ + return (int) fread(data,1,size,(FILE*) user); +} + +static void stbi__stdio_skip(void *user, int n) +{ + int ch; + fseek((FILE*) user, n, SEEK_CUR); + ch = fgetc((FILE*) user); /* have to read a byte to reset feof()'s flag */ + if (ch != EOF) { + ungetc(ch, (FILE *) user); /* push byte back onto stream if valid. */ + } +} + +static int stbi__stdio_eof(void *user) +{ + return feof((FILE*) user) || ferror((FILE *) user); +} + +static stbi_io_callbacks stbi__stdio_callbacks = +{ + stbi__stdio_read, + stbi__stdio_skip, + stbi__stdio_eof, +}; + +static void stbi__start_file(stbi__context *s, FILE *f) +{ + stbi__start_callbacks(s, &stbi__stdio_callbacks, (void *) f); +} + +//static void stop_file(stbi__context *s) { } + +#endif // !STBI_NO_STDIO + +static void stbi__rewind(stbi__context *s) +{ + // conceptually rewind SHOULD rewind to the beginning of the stream, + // but we just rewind to the beginning of the initial buffer, because + // we only use it after doing 'test', which only ever looks at at most 92 bytes + s->img_buffer = s->img_buffer_original; + s->img_buffer_end = s->img_buffer_original_end; +} + +enum +{ + STBI_ORDER_RGB, + STBI_ORDER_BGR +}; + +typedef struct +{ + int bits_per_channel; + int num_channels; + int channel_order; +} stbi__result_info; + +#ifndef STBI_NO_JPEG +static int stbi__jpeg_test(stbi__context *s); +static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PNG +static int stbi__png_test(stbi__context *s); +static void *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp); +static int stbi__png_is16(stbi__context *s); +#endif + +#ifndef STBI_NO_BMP +static int stbi__bmp_test(stbi__context *s); +static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_TGA +static int stbi__tga_test(stbi__context *s); +static void *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PSD +static int stbi__psd_test(stbi__context *s); +static void *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc); +static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp); +static int stbi__psd_is16(stbi__context *s); +#endif + +#ifndef STBI_NO_HDR +static int stbi__hdr_test(stbi__context *s); +static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PIC +static int stbi__pic_test(stbi__context *s); +static void *stbi__pic_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_GIF +static int stbi__gif_test(stbi__context *s); +static void *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static void *stbi__load_gif_main(stbi__context *s, int **delays, int *x, int *y, int *z, int *comp, int req_comp); +static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PNM +static int stbi__pnm_test(stbi__context *s); +static void *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +static +#ifdef STBI_THREAD_LOCAL +STBI_THREAD_LOCAL +#endif +const char *stbi__g_failure_reason; + +STBIDEF const char *stbi_failure_reason(void) +{ + return stbi__g_failure_reason; +} + +#ifndef STBI_NO_FAILURE_STRINGS +static int stbi__err(const char *str) +{ + stbi__g_failure_reason = str; + return 0; +} +#endif + +static void *stbi__malloc(size_t size) +{ + return STBI_MALLOC(size); +} + +// stb_image uses ints pervasively, including for offset calculations. +// therefore the largest decoded image size we can support with the +// current code, even on 64-bit targets, is INT_MAX. this is not a +// significant limitation for the intended use case. +// +// we do, however, need to make sure our size calculations don't +// overflow. hence a few helper functions for size calculations that +// multiply integers together, making sure that they're non-negative +// and no overflow occurs. + +// return 1 if the sum is valid, 0 on overflow. +// negative terms are considered invalid. +static int stbi__addsizes_valid(int a, int b) +{ + if (b < 0) return 0; + // now 0 <= b <= INT_MAX, hence also + // 0 <= INT_MAX - b <= INTMAX. + // And "a + b <= INT_MAX" (which might overflow) is the + // same as a <= INT_MAX - b (no overflow) + return a <= INT_MAX - b; +} + +// returns 1 if the product is valid, 0 on overflow. +// negative factors are considered invalid. +static int stbi__mul2sizes_valid(int a, int b) +{ + if (a < 0 || b < 0) return 0; + if (b == 0) return 1; // mul-by-0 is always safe + // portable way to check for no overflows in a*b + return a <= INT_MAX/b; +} + +#if !defined(STBI_NO_JPEG) || !defined(STBI_NO_PNG) || !defined(STBI_NO_TGA) || !defined(STBI_NO_HDR) +// returns 1 if "a*b + add" has no negative terms/factors and doesn't overflow +static int stbi__mad2sizes_valid(int a, int b, int add) +{ + return stbi__mul2sizes_valid(a, b) && stbi__addsizes_valid(a*b, add); +} +#endif + +// returns 1 if "a*b*c + add" has no negative terms/factors and doesn't overflow +static int stbi__mad3sizes_valid(int a, int b, int c, int add) +{ + return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) && + stbi__addsizes_valid(a*b*c, add); +} + +// returns 1 if "a*b*c*d + add" has no negative terms/factors and doesn't overflow +#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) +static int stbi__mad4sizes_valid(int a, int b, int c, int d, int add) +{ + return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) && + stbi__mul2sizes_valid(a*b*c, d) && stbi__addsizes_valid(a*b*c*d, add); +} +#endif + +#if !defined(STBI_NO_JPEG) || !defined(STBI_NO_PNG) || !defined(STBI_NO_TGA) || !defined(STBI_NO_HDR) +// mallocs with size overflow checking +static void *stbi__malloc_mad2(int a, int b, int add) +{ + if (!stbi__mad2sizes_valid(a, b, add)) return NULL; + return stbi__malloc(a*b + add); +} +#endif + +static void *stbi__malloc_mad3(int a, int b, int c, int add) +{ + if (!stbi__mad3sizes_valid(a, b, c, add)) return NULL; + return stbi__malloc(a*b*c + add); +} + +#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) +static void *stbi__malloc_mad4(int a, int b, int c, int d, int add) +{ + if (!stbi__mad4sizes_valid(a, b, c, d, add)) return NULL; + return stbi__malloc(a*b*c*d + add); +} +#endif + +// stbi__err - error +// stbi__errpf - error returning pointer to float +// stbi__errpuc - error returning pointer to unsigned char + +#ifdef STBI_NO_FAILURE_STRINGS + #define stbi__err(x,y) 0 +#elif defined(STBI_FAILURE_USERMSG) + #define stbi__err(x,y) stbi__err(y) +#else + #define stbi__err(x,y) stbi__err(x) +#endif + +#define stbi__errpf(x,y) ((float *)(size_t) (stbi__err(x,y)?NULL:NULL)) +#define stbi__errpuc(x,y) ((unsigned char *)(size_t) (stbi__err(x,y)?NULL:NULL)) + +STBIDEF void stbi_image_free(void *retval_from_stbi_load) +{ + STBI_FREE(retval_from_stbi_load); +} + +#ifndef STBI_NO_LINEAR +static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp); +#endif + +#ifndef STBI_NO_HDR +static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp); +#endif + +static int stbi__vertically_flip_on_load_global = 0; + +STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip) +{ + stbi__vertically_flip_on_load_global = flag_true_if_should_flip; +} + +#ifndef STBI_THREAD_LOCAL +#define stbi__vertically_flip_on_load stbi__vertically_flip_on_load_global +#else +static STBI_THREAD_LOCAL int stbi__vertically_flip_on_load_local, stbi__vertically_flip_on_load_set; + +STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip) +{ + stbi__vertically_flip_on_load_local = flag_true_if_should_flip; + stbi__vertically_flip_on_load_set = 1; +} + +#define stbi__vertically_flip_on_load (stbi__vertically_flip_on_load_set \ + ? stbi__vertically_flip_on_load_local \ + : stbi__vertically_flip_on_load_global) +#endif // STBI_THREAD_LOCAL + +static void *stbi__load_main(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc) +{ + memset(ri, 0, sizeof(*ri)); // make sure it's initialized if we add new fields + ri->bits_per_channel = 8; // default is 8 so most paths don't have to be changed + ri->channel_order = STBI_ORDER_RGB; // all current input & output are this, but this is here so we can add BGR order + ri->num_channels = 0; + + #ifndef STBI_NO_JPEG + if (stbi__jpeg_test(s)) return stbi__jpeg_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_PNG + if (stbi__png_test(s)) return stbi__png_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_BMP + if (stbi__bmp_test(s)) return stbi__bmp_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_GIF + if (stbi__gif_test(s)) return stbi__gif_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_PSD + if (stbi__psd_test(s)) return stbi__psd_load(s,x,y,comp,req_comp, ri, bpc); + #else + STBI_NOTUSED(bpc); + #endif + #ifndef STBI_NO_PIC + if (stbi__pic_test(s)) return stbi__pic_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_PNM + if (stbi__pnm_test(s)) return stbi__pnm_load(s,x,y,comp,req_comp, ri); + #endif + + #ifndef STBI_NO_HDR + if (stbi__hdr_test(s)) { + float *hdr = stbi__hdr_load(s, x,y,comp,req_comp, ri); + return stbi__hdr_to_ldr(hdr, *x, *y, req_comp ? req_comp : *comp); + } + #endif + + #ifndef STBI_NO_TGA + // test tga last because it's a crappy test! + if (stbi__tga_test(s)) + return stbi__tga_load(s,x,y,comp,req_comp, ri); + #endif + + return stbi__errpuc("unknown image type", "Image not of any known type, or corrupt"); +} + +static stbi_uc *stbi__convert_16_to_8(stbi__uint16 *orig, int w, int h, int channels) +{ + int i; + int img_len = w * h * channels; + stbi_uc *reduced; + + reduced = (stbi_uc *) stbi__malloc(img_len); + if (reduced == NULL) return stbi__errpuc("outofmem", "Out of memory"); + + for (i = 0; i < img_len; ++i) + reduced[i] = (stbi_uc)((orig[i] >> 8) & 0xFF); // top half of each byte is sufficient approx of 16->8 bit scaling + + STBI_FREE(orig); + return reduced; +} + +static stbi__uint16 *stbi__convert_8_to_16(stbi_uc *orig, int w, int h, int channels) +{ + int i; + int img_len = w * h * channels; + stbi__uint16 *enlarged; + + enlarged = (stbi__uint16 *) stbi__malloc(img_len*2); + if (enlarged == NULL) return (stbi__uint16 *) stbi__errpuc("outofmem", "Out of memory"); + + for (i = 0; i < img_len; ++i) + enlarged[i] = (stbi__uint16)((orig[i] << 8) + orig[i]); // replicate to high and low byte, maps 0->0, 255->0xffff + + STBI_FREE(orig); + return enlarged; +} + +static void stbi__vertical_flip(void *image, int w, int h, int bytes_per_pixel) +{ + int row; + size_t bytes_per_row = (size_t)w * bytes_per_pixel; + stbi_uc temp[2048]; + stbi_uc *bytes = (stbi_uc *)image; + + for (row = 0; row < (h>>1); row++) { + stbi_uc *row0 = bytes + row*bytes_per_row; + stbi_uc *row1 = bytes + (h - row - 1)*bytes_per_row; + // swap row0 with row1 + size_t bytes_left = bytes_per_row; + while (bytes_left) { + size_t bytes_copy = (bytes_left < sizeof(temp)) ? bytes_left : sizeof(temp); + memcpy(temp, row0, bytes_copy); + memcpy(row0, row1, bytes_copy); + memcpy(row1, temp, bytes_copy); + row0 += bytes_copy; + row1 += bytes_copy; + bytes_left -= bytes_copy; + } + } +} + +#ifndef STBI_NO_GIF +static void stbi__vertical_flip_slices(void *image, int w, int h, int z, int bytes_per_pixel) +{ + int slice; + int slice_size = w * h * bytes_per_pixel; + + stbi_uc *bytes = (stbi_uc *)image; + for (slice = 0; slice < z; ++slice) { + stbi__vertical_flip(bytes, w, h, bytes_per_pixel); + bytes += slice_size; + } +} +#endif + +static unsigned char *stbi__load_and_postprocess_8bit(stbi__context *s, int *x, int *y, int *comp, int req_comp) +{ + stbi__result_info ri; + void *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 8); + + if (result == NULL) + return NULL; + + // it is the responsibility of the loaders to make sure we get either 8 or 16 bit. + STBI_ASSERT(ri.bits_per_channel == 8 || ri.bits_per_channel == 16); + + if (ri.bits_per_channel != 8) { + result = stbi__convert_16_to_8((stbi__uint16 *) result, *x, *y, req_comp == 0 ? *comp : req_comp); + ri.bits_per_channel = 8; + } + + // @TODO: move stbi__convert_format to here + + if (stbi__vertically_flip_on_load) { + int channels = req_comp ? req_comp : *comp; + stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi_uc)); + } + + return (unsigned char *) result; +} + +static stbi__uint16 *stbi__load_and_postprocess_16bit(stbi__context *s, int *x, int *y, int *comp, int req_comp) +{ + stbi__result_info ri; + void *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 16); + + if (result == NULL) + return NULL; + + // it is the responsibility of the loaders to make sure we get either 8 or 16 bit. + STBI_ASSERT(ri.bits_per_channel == 8 || ri.bits_per_channel == 16); + + if (ri.bits_per_channel != 16) { + result = stbi__convert_8_to_16((stbi_uc *) result, *x, *y, req_comp == 0 ? *comp : req_comp); + ri.bits_per_channel = 16; + } + + // @TODO: move stbi__convert_format16 to here + // @TODO: special case RGB-to-Y (and RGBA-to-YA) for 8-bit-to-16-bit case to keep more precision + + if (stbi__vertically_flip_on_load) { + int channels = req_comp ? req_comp : *comp; + stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi__uint16)); + } + + return (stbi__uint16 *) result; +} + +#if !defined(STBI_NO_HDR) && !defined(STBI_NO_LINEAR) +static void stbi__float_postprocess(float *result, int *x, int *y, int *comp, int req_comp) +{ + if (stbi__vertically_flip_on_load && result != NULL) { + int channels = req_comp ? req_comp : *comp; + stbi__vertical_flip(result, *x, *y, channels * sizeof(float)); + } +} +#endif + +#ifndef STBI_NO_STDIO + +#if defined(_MSC_VER) && defined(STBI_WINDOWS_UTF8) +STBI_EXTERN __declspec(dllimport) int __stdcall MultiByteToWideChar(unsigned int cp, unsigned long flags, const char *str, int cbmb, wchar_t *widestr, int cchwide); +STBI_EXTERN __declspec(dllimport) int __stdcall WideCharToMultiByte(unsigned int cp, unsigned long flags, const wchar_t *widestr, int cchwide, char *str, int cbmb, const char *defchar, int *used_default); +#endif + +#if defined(_MSC_VER) && defined(STBI_WINDOWS_UTF8) +STBIDEF int stbi_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input) +{ + return WideCharToMultiByte(65001 /* UTF8 */, 0, input, -1, buffer, (int) bufferlen, NULL, NULL); +} +#endif + +static FILE *stbi__fopen(char const *filename, char const *mode) +{ + FILE *f; +#if defined(_MSC_VER) && defined(STBI_WINDOWS_UTF8) + wchar_t wMode[64]; + wchar_t wFilename[1024]; + if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, filename, -1, wFilename, sizeof(wFilename))) + return 0; + + if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, mode, -1, wMode, sizeof(wMode))) + return 0; + +#if _MSC_VER >= 1400 + if (0 != _wfopen_s(&f, wFilename, wMode)) + f = 0; +#else + f = _wfopen(wFilename, wMode); +#endif + +#elif defined(_MSC_VER) && _MSC_VER >= 1400 + if (0 != fopen_s(&f, filename, mode)) + f=0; +#else + f = fopen(filename, mode); +#endif + return f; +} + + +STBIDEF stbi_uc *stbi_load(char const *filename, int *x, int *y, int *comp, int req_comp) +{ + FILE *f = stbi__fopen(filename, "rb"); + unsigned char *result; + if (!f) return stbi__errpuc("can't fopen", "Unable to open file"); + result = stbi_load_from_file(f,x,y,comp,req_comp); + fclose(f); + return result; +} + +STBIDEF stbi_uc *stbi_load_from_file(FILE *f, int *x, int *y, int *comp, int req_comp) +{ + unsigned char *result; + stbi__context s; + stbi__start_file(&s,f); + result = stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); + if (result) { + // need to 'unget' all the characters in the IO buffer + fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR); + } + return result; +} + +STBIDEF stbi__uint16 *stbi_load_from_file_16(FILE *f, int *x, int *y, int *comp, int req_comp) +{ + stbi__uint16 *result; + stbi__context s; + stbi__start_file(&s,f); + result = stbi__load_and_postprocess_16bit(&s,x,y,comp,req_comp); + if (result) { + // need to 'unget' all the characters in the IO buffer + fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR); + } + return result; +} + +STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp) +{ + FILE *f = stbi__fopen(filename, "rb"); + stbi__uint16 *result; + if (!f) return (stbi_us *) stbi__errpuc("can't fopen", "Unable to open file"); + result = stbi_load_from_file_16(f,x,y,comp,req_comp); + fclose(f); + return result; +} + + +#endif //!STBI_NO_STDIO + +STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels); +} + +STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *)clbk, user); + return stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels); +} + +STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); +} + +STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); + return stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); +} + +#ifndef STBI_NO_GIF +STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp) +{ + unsigned char *result; + stbi__context s; + stbi__start_mem(&s,buffer,len); + + result = (unsigned char*) stbi__load_gif_main(&s, delays, x, y, z, comp, req_comp); + if (stbi__vertically_flip_on_load) { + stbi__vertical_flip_slices( result, *x, *y, *z, *comp ); + } + + return result; +} +#endif + +#ifndef STBI_NO_LINEAR +static float *stbi__loadf_main(stbi__context *s, int *x, int *y, int *comp, int req_comp) +{ + unsigned char *data; + #ifndef STBI_NO_HDR + if (stbi__hdr_test(s)) { + stbi__result_info ri; + float *hdr_data = stbi__hdr_load(s,x,y,comp,req_comp, &ri); + if (hdr_data) + stbi__float_postprocess(hdr_data,x,y,comp,req_comp); + return hdr_data; + } + #endif + data = stbi__load_and_postprocess_8bit(s, x, y, comp, req_comp); + if (data) + return stbi__ldr_to_hdr(data, *x, *y, req_comp ? req_comp : *comp); + return stbi__errpf("unknown image type", "Image not of any known type, or corrupt"); +} + +STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__loadf_main(&s,x,y,comp,req_comp); +} + +STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); + return stbi__loadf_main(&s,x,y,comp,req_comp); +} + +#ifndef STBI_NO_STDIO +STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp) +{ + float *result; + FILE *f = stbi__fopen(filename, "rb"); + if (!f) return stbi__errpf("can't fopen", "Unable to open file"); + result = stbi_loadf_from_file(f,x,y,comp,req_comp); + fclose(f); + return result; +} + +STBIDEF float *stbi_loadf_from_file(FILE *f, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_file(&s,f); + return stbi__loadf_main(&s,x,y,comp,req_comp); +} +#endif // !STBI_NO_STDIO + +#endif // !STBI_NO_LINEAR + +// these is-hdr-or-not is defined independent of whether STBI_NO_LINEAR is +// defined, for API simplicity; if STBI_NO_LINEAR is defined, it always +// reports false! + +STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len) +{ + #ifndef STBI_NO_HDR + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__hdr_test(&s); + #else + STBI_NOTUSED(buffer); + STBI_NOTUSED(len); + return 0; + #endif +} + +#ifndef STBI_NO_STDIO +STBIDEF int stbi_is_hdr (char const *filename) +{ + FILE *f = stbi__fopen(filename, "rb"); + int result=0; + if (f) { + result = stbi_is_hdr_from_file(f); + fclose(f); + } + return result; +} + +STBIDEF int stbi_is_hdr_from_file(FILE *f) +{ + #ifndef STBI_NO_HDR + long pos = ftell(f); + int res; + stbi__context s; + stbi__start_file(&s,f); + res = stbi__hdr_test(&s); + fseek(f, pos, SEEK_SET); + return res; + #else + STBI_NOTUSED(f); + return 0; + #endif +} +#endif // !STBI_NO_STDIO + +STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user) +{ + #ifndef STBI_NO_HDR + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); + return stbi__hdr_test(&s); + #else + STBI_NOTUSED(clbk); + STBI_NOTUSED(user); + return 0; + #endif +} + +#ifndef STBI_NO_LINEAR +static float stbi__l2h_gamma=2.2f, stbi__l2h_scale=1.0f; + +STBIDEF void stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; } +STBIDEF void stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; } +#endif + +static float stbi__h2l_gamma_i=1.0f/2.2f, stbi__h2l_scale_i=1.0f; + +STBIDEF void stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; } +STBIDEF void stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; } + + +////////////////////////////////////////////////////////////////////////////// +// +// Common code used by all image loaders +// + +enum +{ + STBI__SCAN_load=0, + STBI__SCAN_type, + STBI__SCAN_header +}; + +static void stbi__refill_buffer(stbi__context *s) +{ + int n = (s->io.read)(s->io_user_data,(char*)s->buffer_start,s->buflen); + s->callback_already_read += (int) (s->img_buffer - s->img_buffer_original); + if (n == 0) { + // at end of file, treat same as if from memory, but need to handle case + // where s->img_buffer isn't pointing to safe memory, e.g. 0-byte file + s->read_from_callbacks = 0; + s->img_buffer = s->buffer_start; + s->img_buffer_end = s->buffer_start+1; + *s->img_buffer = 0; + } else { + s->img_buffer = s->buffer_start; + s->img_buffer_end = s->buffer_start + n; + } +} + +stbi_inline static stbi_uc stbi__get8(stbi__context *s) +{ + if (s->img_buffer < s->img_buffer_end) + return *s->img_buffer++; + if (s->read_from_callbacks) { + stbi__refill_buffer(s); + return *s->img_buffer++; + } + return 0; +} + +#if defined(STBI_NO_JPEG) && defined(STBI_NO_HDR) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM) +// nothing +#else +stbi_inline static int stbi__at_eof(stbi__context *s) +{ + if (s->io.read) { + if (!(s->io.eof)(s->io_user_data)) return 0; + // if feof() is true, check if buffer = end + // special case: we've only got the special 0 character at the end + if (s->read_from_callbacks == 0) return 1; + } + + return s->img_buffer >= s->img_buffer_end; +} +#endif + +#if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) +// nothing +#else +static void stbi__skip(stbi__context *s, int n) +{ + if (n == 0) return; // already there! + if (n < 0) { + s->img_buffer = s->img_buffer_end; + return; + } + if (s->io.read) { + int blen = (int) (s->img_buffer_end - s->img_buffer); + if (blen < n) { + s->img_buffer = s->img_buffer_end; + (s->io.skip)(s->io_user_data, n - blen); + return; + } + } + s->img_buffer += n; +} +#endif + +#if defined(STBI_NO_PNG) && defined(STBI_NO_TGA) && defined(STBI_NO_HDR) && defined(STBI_NO_PNM) +// nothing +#else +static int stbi__getn(stbi__context *s, stbi_uc *buffer, int n) +{ + if (s->io.read) { + int blen = (int) (s->img_buffer_end - s->img_buffer); + if (blen < n) { + int res, count; + + memcpy(buffer, s->img_buffer, blen); + + count = (s->io.read)(s->io_user_data, (char*) buffer + blen, n - blen); + res = (count == (n-blen)); + s->img_buffer = s->img_buffer_end; + return res; + } + } + + if (s->img_buffer+n <= s->img_buffer_end) { + memcpy(buffer, s->img_buffer, n); + s->img_buffer += n; + return 1; + } else + return 0; +} +#endif + +#if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_PSD) && defined(STBI_NO_PIC) +// nothing +#else +static int stbi__get16be(stbi__context *s) +{ + int z = stbi__get8(s); + return (z << 8) + stbi__get8(s); +} +#endif + +#if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) && defined(STBI_NO_PIC) +// nothing +#else +static stbi__uint32 stbi__get32be(stbi__context *s) +{ + stbi__uint32 z = stbi__get16be(s); + return (z << 16) + stbi__get16be(s); +} +#endif + +#if defined(STBI_NO_BMP) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) +// nothing +#else +static int stbi__get16le(stbi__context *s) +{ + int z = stbi__get8(s); + return z + (stbi__get8(s) << 8); +} +#endif + +#ifndef STBI_NO_BMP +static stbi__uint32 stbi__get32le(stbi__context *s) +{ + stbi__uint32 z = stbi__get16le(s); + return z + (stbi__get16le(s) << 16); +} +#endif + +#define STBI__BYTECAST(x) ((stbi_uc) ((x) & 255)) // truncate int to byte without warnings + +#if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM) +// nothing +#else +////////////////////////////////////////////////////////////////////////////// +// +// generic converter from built-in img_n to req_comp +// individual types do this automatically as much as possible (e.g. jpeg +// does all cases internally since it needs to colorspace convert anyway, +// and it never has alpha, so very few cases ). png can automatically +// interleave an alpha=255 channel, but falls back to this for other cases +// +// assume data buffer is malloced, so malloc a new one and free that one +// only failure mode is malloc failing + +static stbi_uc stbi__compute_y(int r, int g, int b) +{ + return (stbi_uc) (((r*77) + (g*150) + (29*b)) >> 8); +} +#endif + +#if defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM) +// nothing +#else +static unsigned char *stbi__convert_format(unsigned char *data, int img_n, int req_comp, unsigned int x, unsigned int y) +{ + int i,j; + unsigned char *good; + + if (req_comp == img_n) return data; + STBI_ASSERT(req_comp >= 1 && req_comp <= 4); + + good = (unsigned char *) stbi__malloc_mad3(req_comp, x, y, 0); + if (good == NULL) { + STBI_FREE(data); + return stbi__errpuc("outofmem", "Out of memory"); + } + + for (j=0; j < (int) y; ++j) { + unsigned char *src = data + j * x * img_n ; + unsigned char *dest = good + j * x * req_comp; + + #define STBI__COMBO(a,b) ((a)*8+(b)) + #define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b) + // convert source image with img_n components to one with req_comp components; + // avoid switch per pixel, so use switch per scanline and massive macros + switch (STBI__COMBO(img_n, req_comp)) { + STBI__CASE(1,2) { dest[0]=src[0]; dest[1]=255; } break; + STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=255; } break; + STBI__CASE(2,1) { dest[0]=src[0]; } break; + STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=src[1]; } break; + STBI__CASE(3,4) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2];dest[3]=255; } break; + STBI__CASE(3,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } break; + STBI__CASE(3,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); dest[1] = 255; } break; + STBI__CASE(4,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } break; + STBI__CASE(4,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); dest[1] = src[3]; } break; + STBI__CASE(4,3) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2]; } break; + default: STBI_ASSERT(0); STBI_FREE(data); STBI_FREE(good); return stbi__errpuc("unsupported", "Unsupported format conversion"); + } + #undef STBI__CASE + } + + STBI_FREE(data); + return good; +} +#endif + +#if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) +// nothing +#else +static stbi__uint16 stbi__compute_y_16(int r, int g, int b) +{ + return (stbi__uint16) (((r*77) + (g*150) + (29*b)) >> 8); +} +#endif + +#if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) +// nothing +#else +static stbi__uint16 *stbi__convert_format16(stbi__uint16 *data, int img_n, int req_comp, unsigned int x, unsigned int y) +{ + int i,j; + stbi__uint16 *good; + + if (req_comp == img_n) return data; + STBI_ASSERT(req_comp >= 1 && req_comp <= 4); + + good = (stbi__uint16 *) stbi__malloc(req_comp * x * y * 2); + if (good == NULL) { + STBI_FREE(data); + return (stbi__uint16 *) stbi__errpuc("outofmem", "Out of memory"); + } + + for (j=0; j < (int) y; ++j) { + stbi__uint16 *src = data + j * x * img_n ; + stbi__uint16 *dest = good + j * x * req_comp; + + #define STBI__COMBO(a,b) ((a)*8+(b)) + #define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b) + // convert source image with img_n components to one with req_comp components; + // avoid switch per pixel, so use switch per scanline and massive macros + switch (STBI__COMBO(img_n, req_comp)) { + STBI__CASE(1,2) { dest[0]=src[0]; dest[1]=0xffff; } break; + STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=0xffff; } break; + STBI__CASE(2,1) { dest[0]=src[0]; } break; + STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=src[1]; } break; + STBI__CASE(3,4) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2];dest[3]=0xffff; } break; + STBI__CASE(3,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } break; + STBI__CASE(3,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); dest[1] = 0xffff; } break; + STBI__CASE(4,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } break; + STBI__CASE(4,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); dest[1] = src[3]; } break; + STBI__CASE(4,3) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2]; } break; + default: STBI_ASSERT(0); STBI_FREE(data); STBI_FREE(good); return (stbi__uint16*) stbi__errpuc("unsupported", "Unsupported format conversion"); + } + #undef STBI__CASE + } + + STBI_FREE(data); + return good; +} +#endif + +#ifndef STBI_NO_LINEAR +static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp) +{ + int i,k,n; + float *output; + if (!data) return NULL; + output = (float *) stbi__malloc_mad4(x, y, comp, sizeof(float), 0); + if (output == NULL) { STBI_FREE(data); return stbi__errpf("outofmem", "Out of memory"); } + // compute number of non-alpha components + if (comp & 1) n = comp; else n = comp-1; + for (i=0; i < x*y; ++i) { + for (k=0; k < n; ++k) { + output[i*comp + k] = (float) (pow(data[i*comp+k]/255.0f, stbi__l2h_gamma) * stbi__l2h_scale); + } + } + if (n < comp) { + for (i=0; i < x*y; ++i) { + output[i*comp + n] = data[i*comp + n]/255.0f; + } + } + STBI_FREE(data); + return output; +} +#endif + +#ifndef STBI_NO_HDR +#define stbi__float2int(x) ((int) (x)) +static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp) +{ + int i,k,n; + stbi_uc *output; + if (!data) return NULL; + output = (stbi_uc *) stbi__malloc_mad3(x, y, comp, 0); + if (output == NULL) { STBI_FREE(data); return stbi__errpuc("outofmem", "Out of memory"); } + // compute number of non-alpha components + if (comp & 1) n = comp; else n = comp-1; + for (i=0; i < x*y; ++i) { + for (k=0; k < n; ++k) { + float z = (float) pow(data[i*comp+k]*stbi__h2l_scale_i, stbi__h2l_gamma_i) * 255 + 0.5f; + if (z < 0) z = 0; + if (z > 255) z = 255; + output[i*comp + k] = (stbi_uc) stbi__float2int(z); + } + if (k < comp) { + float z = data[i*comp+k] * 255 + 0.5f; + if (z < 0) z = 0; + if (z > 255) z = 255; + output[i*comp + k] = (stbi_uc) stbi__float2int(z); + } + } + STBI_FREE(data); + return output; +} +#endif + +////////////////////////////////////////////////////////////////////////////// +// +// "baseline" JPEG/JFIF decoder +// +// simple implementation +// - doesn't support delayed output of y-dimension +// - simple interface (only one output format: 8-bit interleaved RGB) +// - doesn't try to recover corrupt jpegs +// - doesn't allow partial loading, loading multiple at once +// - still fast on x86 (copying globals into locals doesn't help x86) +// - allocates lots of intermediate memory (full size of all components) +// - non-interleaved case requires this anyway +// - allows good upsampling (see next) +// high-quality +// - upsampled channels are bilinearly interpolated, even across blocks +// - quality integer IDCT derived from IJG's 'slow' +// performance +// - fast huffman; reasonable integer IDCT +// - some SIMD kernels for common paths on targets with SSE2/NEON +// - uses a lot of intermediate memory, could cache poorly + +#ifndef STBI_NO_JPEG + +// huffman decoding acceleration +#define FAST_BITS 9 // larger handles more cases; smaller stomps less cache + +typedef struct +{ + stbi_uc fast[1 << FAST_BITS]; + // weirdly, repacking this into AoS is a 10% speed loss, instead of a win + stbi__uint16 code[256]; + stbi_uc values[256]; + stbi_uc size[257]; + unsigned int maxcode[18]; + int delta[17]; // old 'firstsymbol' - old 'firstcode' +} stbi__huffman; + +typedef struct +{ + stbi__context *s; + stbi__huffman huff_dc[4]; + stbi__huffman huff_ac[4]; + stbi__uint16 dequant[4][64]; + stbi__int16 fast_ac[4][1 << FAST_BITS]; + +// sizes for components, interleaved MCUs + int img_h_max, img_v_max; + int img_mcu_x, img_mcu_y; + int img_mcu_w, img_mcu_h; + +// definition of jpeg image component + struct + { + int id; + int h,v; + int tq; + int hd,ha; + int dc_pred; + + int x,y,w2,h2; + stbi_uc *data; + void *raw_data, *raw_coeff; + stbi_uc *linebuf; + short *coeff; // progressive only + int coeff_w, coeff_h; // number of 8x8 coefficient blocks + } img_comp[4]; + + stbi__uint32 code_buffer; // jpeg entropy-coded buffer + int code_bits; // number of valid bits + unsigned char marker; // marker seen while filling entropy buffer + int nomore; // flag if we saw a marker so must stop + + int progressive; + int spec_start; + int spec_end; + int succ_high; + int succ_low; + int eob_run; + int jfif; + int app14_color_transform; // Adobe APP14 tag + int rgb; + + int scan_n, order[4]; + int restart_interval, todo; + +// kernels + void (*idct_block_kernel)(stbi_uc *out, int out_stride, short data[64]); + void (*YCbCr_to_RGB_kernel)(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step); + stbi_uc *(*resample_row_hv_2_kernel)(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs); +} stbi__jpeg; + +static int stbi__build_huffman(stbi__huffman *h, int *count) +{ + int i,j,k=0; + unsigned int code; + // build size list for each symbol (from JPEG spec) + for (i=0; i < 16; ++i) + for (j=0; j < count[i]; ++j) + h->size[k++] = (stbi_uc) (i+1); + h->size[k] = 0; + + // compute actual symbols (from jpeg spec) + code = 0; + k = 0; + for(j=1; j <= 16; ++j) { + // compute delta to add to code to compute symbol id + h->delta[j] = k - code; + if (h->size[k] == j) { + while (h->size[k] == j) + h->code[k++] = (stbi__uint16) (code++); + if (code-1 >= (1u << j)) return stbi__err("bad code lengths","Corrupt JPEG"); + } + // compute largest code + 1 for this size, preshifted as needed later + h->maxcode[j] = code << (16-j); + code <<= 1; + } + h->maxcode[j] = 0xffffffff; + + // build non-spec acceleration table; 255 is flag for not-accelerated + memset(h->fast, 255, 1 << FAST_BITS); + for (i=0; i < k; ++i) { + int s = h->size[i]; + if (s <= FAST_BITS) { + int c = h->code[i] << (FAST_BITS-s); + int m = 1 << (FAST_BITS-s); + for (j=0; j < m; ++j) { + h->fast[c+j] = (stbi_uc) i; + } + } + } + return 1; +} + +// build a table that decodes both magnitude and value of small ACs in +// one go. +static void stbi__build_fast_ac(stbi__int16 *fast_ac, stbi__huffman *h) +{ + int i; + for (i=0; i < (1 << FAST_BITS); ++i) { + stbi_uc fast = h->fast[i]; + fast_ac[i] = 0; + if (fast < 255) { + int rs = h->values[fast]; + int run = (rs >> 4) & 15; + int magbits = rs & 15; + int len = h->size[fast]; + + if (magbits && len + magbits <= FAST_BITS) { + // magnitude code followed by receive_extend code + int k = ((i << len) & ((1 << FAST_BITS) - 1)) >> (FAST_BITS - magbits); + int m = 1 << (magbits - 1); + if (k < m) k += (~0U << magbits) + 1; + // if the result is small enough, we can fit it in fast_ac table + if (k >= -128 && k <= 127) + fast_ac[i] = (stbi__int16) ((k * 256) + (run * 16) + (len + magbits)); + } + } + } +} + +static void stbi__grow_buffer_unsafe(stbi__jpeg *j) +{ + do { + unsigned int b = j->nomore ? 0 : stbi__get8(j->s); + if (b == 0xff) { + int c = stbi__get8(j->s); + while (c == 0xff) c = stbi__get8(j->s); // consume fill bytes + if (c != 0) { + j->marker = (unsigned char) c; + j->nomore = 1; + return; + } + } + j->code_buffer |= b << (24 - j->code_bits); + j->code_bits += 8; + } while (j->code_bits <= 24); +} + +// (1 << n) - 1 +static const stbi__uint32 stbi__bmask[17]={0,1,3,7,15,31,63,127,255,511,1023,2047,4095,8191,16383,32767,65535}; + +// decode a jpeg huffman value from the bitstream +stbi_inline static int stbi__jpeg_huff_decode(stbi__jpeg *j, stbi__huffman *h) +{ + unsigned int temp; + int c,k; + + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + + // look at the top FAST_BITS and determine what symbol ID it is, + // if the code is <= FAST_BITS + c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); + k = h->fast[c]; + if (k < 255) { + int s = h->size[k]; + if (s > j->code_bits) + return -1; + j->code_buffer <<= s; + j->code_bits -= s; + return h->values[k]; + } + + // naive test is to shift the code_buffer down so k bits are + // valid, then test against maxcode. To speed this up, we've + // preshifted maxcode left so that it has (16-k) 0s at the + // end; in other words, regardless of the number of bits, it + // wants to be compared against something shifted to have 16; + // that way we don't need to shift inside the loop. + temp = j->code_buffer >> 16; + for (k=FAST_BITS+1 ; ; ++k) + if (temp < h->maxcode[k]) + break; + if (k == 17) { + // error! code not found + j->code_bits -= 16; + return -1; + } + + if (k > j->code_bits) + return -1; + + // convert the huffman code to the symbol id + c = ((j->code_buffer >> (32 - k)) & stbi__bmask[k]) + h->delta[k]; + STBI_ASSERT((((j->code_buffer) >> (32 - h->size[c])) & stbi__bmask[h->size[c]]) == h->code[c]); + + // convert the id to a symbol + j->code_bits -= k; + j->code_buffer <<= k; + return h->values[c]; +} + +// bias[n] = (-1<code_bits < n) stbi__grow_buffer_unsafe(j); + + sgn = (stbi__int32)j->code_buffer >> 31; // sign bit is always in MSB + k = stbi_lrot(j->code_buffer, n); + if (n < 0 || n >= (int) (sizeof(stbi__bmask)/sizeof(*stbi__bmask))) return 0; + j->code_buffer = k & ~stbi__bmask[n]; + k &= stbi__bmask[n]; + j->code_bits -= n; + return k + (stbi__jbias[n] & ~sgn); +} + +// get some unsigned bits +stbi_inline static int stbi__jpeg_get_bits(stbi__jpeg *j, int n) +{ + unsigned int k; + if (j->code_bits < n) stbi__grow_buffer_unsafe(j); + k = stbi_lrot(j->code_buffer, n); + j->code_buffer = k & ~stbi__bmask[n]; + k &= stbi__bmask[n]; + j->code_bits -= n; + return k; +} + +stbi_inline static int stbi__jpeg_get_bit(stbi__jpeg *j) +{ + unsigned int k; + if (j->code_bits < 1) stbi__grow_buffer_unsafe(j); + k = j->code_buffer; + j->code_buffer <<= 1; + --j->code_bits; + return k & 0x80000000; +} + +// given a value that's at position X in the zigzag stream, +// where does it appear in the 8x8 matrix coded as row-major? +static const stbi_uc stbi__jpeg_dezigzag[64+15] = +{ + 0, 1, 8, 16, 9, 2, 3, 10, + 17, 24, 32, 25, 18, 11, 4, 5, + 12, 19, 26, 33, 40, 48, 41, 34, + 27, 20, 13, 6, 7, 14, 21, 28, + 35, 42, 49, 56, 57, 50, 43, 36, + 29, 22, 15, 23, 30, 37, 44, 51, + 58, 59, 52, 45, 38, 31, 39, 46, + 53, 60, 61, 54, 47, 55, 62, 63, + // let corrupt input sample past end + 63, 63, 63, 63, 63, 63, 63, 63, + 63, 63, 63, 63, 63, 63, 63 +}; + +// decode one 64-entry block-- +static int stbi__jpeg_decode_block(stbi__jpeg *j, short data[64], stbi__huffman *hdc, stbi__huffman *hac, stbi__int16 *fac, int b, stbi__uint16 *dequant) +{ + int diff,dc,k; + int t; + + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + t = stbi__jpeg_huff_decode(j, hdc); + if (t < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + + // 0 all the ac values now so we can do it 32-bits at a time + memset(data,0,64*sizeof(data[0])); + + diff = t ? stbi__extend_receive(j, t) : 0; + dc = j->img_comp[b].dc_pred + diff; + j->img_comp[b].dc_pred = dc; + data[0] = (short) (dc * dequant[0]); + + // decode AC components, see JPEG spec + k = 1; + do { + unsigned int zig; + int c,r,s; + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); + r = fac[c]; + if (r) { // fast-AC path + k += (r >> 4) & 15; // run + s = r & 15; // combined length + j->code_buffer <<= s; + j->code_bits -= s; + // decode into unzigzag'd location + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) ((r >> 8) * dequant[zig]); + } else { + int rs = stbi__jpeg_huff_decode(j, hac); + if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + s = rs & 15; + r = rs >> 4; + if (s == 0) { + if (rs != 0xf0) break; // end block + k += 16; + } else { + k += r; + // decode into unzigzag'd location + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) (stbi__extend_receive(j,s) * dequant[zig]); + } + } + } while (k < 64); + return 1; +} + +static int stbi__jpeg_decode_block_prog_dc(stbi__jpeg *j, short data[64], stbi__huffman *hdc, int b) +{ + int diff,dc; + int t; + if (j->spec_end != 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); + + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + + if (j->succ_high == 0) { + // first scan for DC coefficient, must be first + memset(data,0,64*sizeof(data[0])); // 0 all the ac values now + t = stbi__jpeg_huff_decode(j, hdc); + if (t == -1) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); + diff = t ? stbi__extend_receive(j, t) : 0; + + dc = j->img_comp[b].dc_pred + diff; + j->img_comp[b].dc_pred = dc; + data[0] = (short) (dc << j->succ_low); + } else { + // refinement scan for DC coefficient + if (stbi__jpeg_get_bit(j)) + data[0] += (short) (1 << j->succ_low); + } + return 1; +} + +// @OPTIMIZE: store non-zigzagged during the decode passes, +// and only de-zigzag when dequantizing +static int stbi__jpeg_decode_block_prog_ac(stbi__jpeg *j, short data[64], stbi__huffman *hac, stbi__int16 *fac) +{ + int k; + if (j->spec_start == 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); + + if (j->succ_high == 0) { + int shift = j->succ_low; + + if (j->eob_run) { + --j->eob_run; + return 1; + } + + k = j->spec_start; + do { + unsigned int zig; + int c,r,s; + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); + r = fac[c]; + if (r) { // fast-AC path + k += (r >> 4) & 15; // run + s = r & 15; // combined length + j->code_buffer <<= s; + j->code_bits -= s; + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) ((r >> 8) << shift); + } else { + int rs = stbi__jpeg_huff_decode(j, hac); + if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + s = rs & 15; + r = rs >> 4; + if (s == 0) { + if (r < 15) { + j->eob_run = (1 << r); + if (r) + j->eob_run += stbi__jpeg_get_bits(j, r); + --j->eob_run; + break; + } + k += 16; + } else { + k += r; + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) (stbi__extend_receive(j,s) << shift); + } + } + } while (k <= j->spec_end); + } else { + // refinement scan for these AC coefficients + + short bit = (short) (1 << j->succ_low); + + if (j->eob_run) { + --j->eob_run; + for (k = j->spec_start; k <= j->spec_end; ++k) { + short *p = &data[stbi__jpeg_dezigzag[k]]; + if (*p != 0) + if (stbi__jpeg_get_bit(j)) + if ((*p & bit)==0) { + if (*p > 0) + *p += bit; + else + *p -= bit; + } + } + } else { + k = j->spec_start; + do { + int r,s; + int rs = stbi__jpeg_huff_decode(j, hac); // @OPTIMIZE see if we can use the fast path here, advance-by-r is so slow, eh + if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + s = rs & 15; + r = rs >> 4; + if (s == 0) { + if (r < 15) { + j->eob_run = (1 << r) - 1; + if (r) + j->eob_run += stbi__jpeg_get_bits(j, r); + r = 64; // force end of block + } else { + // r=15 s=0 should write 16 0s, so we just do + // a run of 15 0s and then write s (which is 0), + // so we don't have to do anything special here + } + } else { + if (s != 1) return stbi__err("bad huffman code", "Corrupt JPEG"); + // sign bit + if (stbi__jpeg_get_bit(j)) + s = bit; + else + s = -bit; + } + + // advance by r + while (k <= j->spec_end) { + short *p = &data[stbi__jpeg_dezigzag[k++]]; + if (*p != 0) { + if (stbi__jpeg_get_bit(j)) + if ((*p & bit)==0) { + if (*p > 0) + *p += bit; + else + *p -= bit; + } + } else { + if (r == 0) { + *p = (short) s; + break; + } + --r; + } + } + } while (k <= j->spec_end); + } + } + return 1; +} + +// take a -128..127 value and stbi__clamp it and convert to 0..255 +stbi_inline static stbi_uc stbi__clamp(int x) +{ + // trick to use a single test to catch both cases + if ((unsigned int) x > 255) { + if (x < 0) return 0; + if (x > 255) return 255; + } + return (stbi_uc) x; +} + +#define stbi__f2f(x) ((int) (((x) * 4096 + 0.5))) +#define stbi__fsh(x) ((x) * 4096) + +// derived from jidctint -- DCT_ISLOW +#define STBI__IDCT_1D(s0,s1,s2,s3,s4,s5,s6,s7) \ + int t0,t1,t2,t3,p1,p2,p3,p4,p5,x0,x1,x2,x3; \ + p2 = s2; \ + p3 = s6; \ + p1 = (p2+p3) * stbi__f2f(0.5411961f); \ + t2 = p1 + p3*stbi__f2f(-1.847759065f); \ + t3 = p1 + p2*stbi__f2f( 0.765366865f); \ + p2 = s0; \ + p3 = s4; \ + t0 = stbi__fsh(p2+p3); \ + t1 = stbi__fsh(p2-p3); \ + x0 = t0+t3; \ + x3 = t0-t3; \ + x1 = t1+t2; \ + x2 = t1-t2; \ + t0 = s7; \ + t1 = s5; \ + t2 = s3; \ + t3 = s1; \ + p3 = t0+t2; \ + p4 = t1+t3; \ + p1 = t0+t3; \ + p2 = t1+t2; \ + p5 = (p3+p4)*stbi__f2f( 1.175875602f); \ + t0 = t0*stbi__f2f( 0.298631336f); \ + t1 = t1*stbi__f2f( 2.053119869f); \ + t2 = t2*stbi__f2f( 3.072711026f); \ + t3 = t3*stbi__f2f( 1.501321110f); \ + p1 = p5 + p1*stbi__f2f(-0.899976223f); \ + p2 = p5 + p2*stbi__f2f(-2.562915447f); \ + p3 = p3*stbi__f2f(-1.961570560f); \ + p4 = p4*stbi__f2f(-0.390180644f); \ + t3 += p1+p4; \ + t2 += p2+p3; \ + t1 += p2+p4; \ + t0 += p1+p3; + +static void stbi__idct_block(stbi_uc *out, int out_stride, short data[64]) +{ + int i,val[64],*v=val; + stbi_uc *o; + short *d = data; + + // columns + for (i=0; i < 8; ++i,++d, ++v) { + // if all zeroes, shortcut -- this avoids dequantizing 0s and IDCTing + if (d[ 8]==0 && d[16]==0 && d[24]==0 && d[32]==0 + && d[40]==0 && d[48]==0 && d[56]==0) { + // no shortcut 0 seconds + // (1|2|3|4|5|6|7)==0 0 seconds + // all separate -0.047 seconds + // 1 && 2|3 && 4|5 && 6|7: -0.047 seconds + int dcterm = d[0]*4; + v[0] = v[8] = v[16] = v[24] = v[32] = v[40] = v[48] = v[56] = dcterm; + } else { + STBI__IDCT_1D(d[ 0],d[ 8],d[16],d[24],d[32],d[40],d[48],d[56]) + // constants scaled things up by 1<<12; let's bring them back + // down, but keep 2 extra bits of precision + x0 += 512; x1 += 512; x2 += 512; x3 += 512; + v[ 0] = (x0+t3) >> 10; + v[56] = (x0-t3) >> 10; + v[ 8] = (x1+t2) >> 10; + v[48] = (x1-t2) >> 10; + v[16] = (x2+t1) >> 10; + v[40] = (x2-t1) >> 10; + v[24] = (x3+t0) >> 10; + v[32] = (x3-t0) >> 10; + } + } + + for (i=0, v=val, o=out; i < 8; ++i,v+=8,o+=out_stride) { + // no fast case since the first 1D IDCT spread components out + STBI__IDCT_1D(v[0],v[1],v[2],v[3],v[4],v[5],v[6],v[7]) + // constants scaled things up by 1<<12, plus we had 1<<2 from first + // loop, plus horizontal and vertical each scale by sqrt(8) so together + // we've got an extra 1<<3, so 1<<17 total we need to remove. + // so we want to round that, which means adding 0.5 * 1<<17, + // aka 65536. Also, we'll end up with -128 to 127 that we want + // to encode as 0..255 by adding 128, so we'll add that before the shift + x0 += 65536 + (128<<17); + x1 += 65536 + (128<<17); + x2 += 65536 + (128<<17); + x3 += 65536 + (128<<17); + // tried computing the shifts into temps, or'ing the temps to see + // if any were out of range, but that was slower + o[0] = stbi__clamp((x0+t3) >> 17); + o[7] = stbi__clamp((x0-t3) >> 17); + o[1] = stbi__clamp((x1+t2) >> 17); + o[6] = stbi__clamp((x1-t2) >> 17); + o[2] = stbi__clamp((x2+t1) >> 17); + o[5] = stbi__clamp((x2-t1) >> 17); + o[3] = stbi__clamp((x3+t0) >> 17); + o[4] = stbi__clamp((x3-t0) >> 17); + } +} + +#ifdef STBI_SSE2 +// sse2 integer IDCT. not the fastest possible implementation but it +// produces bit-identical results to the generic C version so it's +// fully "transparent". +static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64]) +{ + // This is constructed to match our regular (generic) integer IDCT exactly. + __m128i row0, row1, row2, row3, row4, row5, row6, row7; + __m128i tmp; + + // dot product constant: even elems=x, odd elems=y + #define dct_const(x,y) _mm_setr_epi16((x),(y),(x),(y),(x),(y),(x),(y)) + + // out(0) = c0[even]*x + c0[odd]*y (c0, x, y 16-bit, out 32-bit) + // out(1) = c1[even]*x + c1[odd]*y + #define dct_rot(out0,out1, x,y,c0,c1) \ + __m128i c0##lo = _mm_unpacklo_epi16((x),(y)); \ + __m128i c0##hi = _mm_unpackhi_epi16((x),(y)); \ + __m128i out0##_l = _mm_madd_epi16(c0##lo, c0); \ + __m128i out0##_h = _mm_madd_epi16(c0##hi, c0); \ + __m128i out1##_l = _mm_madd_epi16(c0##lo, c1); \ + __m128i out1##_h = _mm_madd_epi16(c0##hi, c1) + + // out = in << 12 (in 16-bit, out 32-bit) + #define dct_widen(out, in) \ + __m128i out##_l = _mm_srai_epi32(_mm_unpacklo_epi16(_mm_setzero_si128(), (in)), 4); \ + __m128i out##_h = _mm_srai_epi32(_mm_unpackhi_epi16(_mm_setzero_si128(), (in)), 4) + + // wide add + #define dct_wadd(out, a, b) \ + __m128i out##_l = _mm_add_epi32(a##_l, b##_l); \ + __m128i out##_h = _mm_add_epi32(a##_h, b##_h) + + // wide sub + #define dct_wsub(out, a, b) \ + __m128i out##_l = _mm_sub_epi32(a##_l, b##_l); \ + __m128i out##_h = _mm_sub_epi32(a##_h, b##_h) + + // butterfly a/b, add bias, then shift by "s" and pack + #define dct_bfly32o(out0, out1, a,b,bias,s) \ + { \ + __m128i abiased_l = _mm_add_epi32(a##_l, bias); \ + __m128i abiased_h = _mm_add_epi32(a##_h, bias); \ + dct_wadd(sum, abiased, b); \ + dct_wsub(dif, abiased, b); \ + out0 = _mm_packs_epi32(_mm_srai_epi32(sum_l, s), _mm_srai_epi32(sum_h, s)); \ + out1 = _mm_packs_epi32(_mm_srai_epi32(dif_l, s), _mm_srai_epi32(dif_h, s)); \ + } + + // 8-bit interleave step (for transposes) + #define dct_interleave8(a, b) \ + tmp = a; \ + a = _mm_unpacklo_epi8(a, b); \ + b = _mm_unpackhi_epi8(tmp, b) + + // 16-bit interleave step (for transposes) + #define dct_interleave16(a, b) \ + tmp = a; \ + a = _mm_unpacklo_epi16(a, b); \ + b = _mm_unpackhi_epi16(tmp, b) + + #define dct_pass(bias,shift) \ + { \ + /* even part */ \ + dct_rot(t2e,t3e, row2,row6, rot0_0,rot0_1); \ + __m128i sum04 = _mm_add_epi16(row0, row4); \ + __m128i dif04 = _mm_sub_epi16(row0, row4); \ + dct_widen(t0e, sum04); \ + dct_widen(t1e, dif04); \ + dct_wadd(x0, t0e, t3e); \ + dct_wsub(x3, t0e, t3e); \ + dct_wadd(x1, t1e, t2e); \ + dct_wsub(x2, t1e, t2e); \ + /* odd part */ \ + dct_rot(y0o,y2o, row7,row3, rot2_0,rot2_1); \ + dct_rot(y1o,y3o, row5,row1, rot3_0,rot3_1); \ + __m128i sum17 = _mm_add_epi16(row1, row7); \ + __m128i sum35 = _mm_add_epi16(row3, row5); \ + dct_rot(y4o,y5o, sum17,sum35, rot1_0,rot1_1); \ + dct_wadd(x4, y0o, y4o); \ + dct_wadd(x5, y1o, y5o); \ + dct_wadd(x6, y2o, y5o); \ + dct_wadd(x7, y3o, y4o); \ + dct_bfly32o(row0,row7, x0,x7,bias,shift); \ + dct_bfly32o(row1,row6, x1,x6,bias,shift); \ + dct_bfly32o(row2,row5, x2,x5,bias,shift); \ + dct_bfly32o(row3,row4, x3,x4,bias,shift); \ + } + + __m128i rot0_0 = dct_const(stbi__f2f(0.5411961f), stbi__f2f(0.5411961f) + stbi__f2f(-1.847759065f)); + __m128i rot0_1 = dct_const(stbi__f2f(0.5411961f) + stbi__f2f( 0.765366865f), stbi__f2f(0.5411961f)); + __m128i rot1_0 = dct_const(stbi__f2f(1.175875602f) + stbi__f2f(-0.899976223f), stbi__f2f(1.175875602f)); + __m128i rot1_1 = dct_const(stbi__f2f(1.175875602f), stbi__f2f(1.175875602f) + stbi__f2f(-2.562915447f)); + __m128i rot2_0 = dct_const(stbi__f2f(-1.961570560f) + stbi__f2f( 0.298631336f), stbi__f2f(-1.961570560f)); + __m128i rot2_1 = dct_const(stbi__f2f(-1.961570560f), stbi__f2f(-1.961570560f) + stbi__f2f( 3.072711026f)); + __m128i rot3_0 = dct_const(stbi__f2f(-0.390180644f) + stbi__f2f( 2.053119869f), stbi__f2f(-0.390180644f)); + __m128i rot3_1 = dct_const(stbi__f2f(-0.390180644f), stbi__f2f(-0.390180644f) + stbi__f2f( 1.501321110f)); + + // rounding biases in column/row passes, see stbi__idct_block for explanation. + __m128i bias_0 = _mm_set1_epi32(512); + __m128i bias_1 = _mm_set1_epi32(65536 + (128<<17)); + + // load + row0 = _mm_load_si128((const __m128i *) (data + 0*8)); + row1 = _mm_load_si128((const __m128i *) (data + 1*8)); + row2 = _mm_load_si128((const __m128i *) (data + 2*8)); + row3 = _mm_load_si128((const __m128i *) (data + 3*8)); + row4 = _mm_load_si128((const __m128i *) (data + 4*8)); + row5 = _mm_load_si128((const __m128i *) (data + 5*8)); + row6 = _mm_load_si128((const __m128i *) (data + 6*8)); + row7 = _mm_load_si128((const __m128i *) (data + 7*8)); + + // column pass + dct_pass(bias_0, 10); + + { + // 16bit 8x8 transpose pass 1 + dct_interleave16(row0, row4); + dct_interleave16(row1, row5); + dct_interleave16(row2, row6); + dct_interleave16(row3, row7); + + // transpose pass 2 + dct_interleave16(row0, row2); + dct_interleave16(row1, row3); + dct_interleave16(row4, row6); + dct_interleave16(row5, row7); + + // transpose pass 3 + dct_interleave16(row0, row1); + dct_interleave16(row2, row3); + dct_interleave16(row4, row5); + dct_interleave16(row6, row7); + } + + // row pass + dct_pass(bias_1, 17); + + { + // pack + __m128i p0 = _mm_packus_epi16(row0, row1); // a0a1a2a3...a7b0b1b2b3...b7 + __m128i p1 = _mm_packus_epi16(row2, row3); + __m128i p2 = _mm_packus_epi16(row4, row5); + __m128i p3 = _mm_packus_epi16(row6, row7); + + // 8bit 8x8 transpose pass 1 + dct_interleave8(p0, p2); // a0e0a1e1... + dct_interleave8(p1, p3); // c0g0c1g1... + + // transpose pass 2 + dct_interleave8(p0, p1); // a0c0e0g0... + dct_interleave8(p2, p3); // b0d0f0h0... + + // transpose pass 3 + dct_interleave8(p0, p2); // a0b0c0d0... + dct_interleave8(p1, p3); // a4b4c4d4... + + // store + _mm_storel_epi64((__m128i *) out, p0); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p0, 0x4e)); out += out_stride; + _mm_storel_epi64((__m128i *) out, p2); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p2, 0x4e)); out += out_stride; + _mm_storel_epi64((__m128i *) out, p1); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p1, 0x4e)); out += out_stride; + _mm_storel_epi64((__m128i *) out, p3); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p3, 0x4e)); + } + +#undef dct_const +#undef dct_rot +#undef dct_widen +#undef dct_wadd +#undef dct_wsub +#undef dct_bfly32o +#undef dct_interleave8 +#undef dct_interleave16 +#undef dct_pass +} + +#endif // STBI_SSE2 + +#ifdef STBI_NEON + +// NEON integer IDCT. should produce bit-identical +// results to the generic C version. +static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64]) +{ + int16x8_t row0, row1, row2, row3, row4, row5, row6, row7; + + int16x4_t rot0_0 = vdup_n_s16(stbi__f2f(0.5411961f)); + int16x4_t rot0_1 = vdup_n_s16(stbi__f2f(-1.847759065f)); + int16x4_t rot0_2 = vdup_n_s16(stbi__f2f( 0.765366865f)); + int16x4_t rot1_0 = vdup_n_s16(stbi__f2f( 1.175875602f)); + int16x4_t rot1_1 = vdup_n_s16(stbi__f2f(-0.899976223f)); + int16x4_t rot1_2 = vdup_n_s16(stbi__f2f(-2.562915447f)); + int16x4_t rot2_0 = vdup_n_s16(stbi__f2f(-1.961570560f)); + int16x4_t rot2_1 = vdup_n_s16(stbi__f2f(-0.390180644f)); + int16x4_t rot3_0 = vdup_n_s16(stbi__f2f( 0.298631336f)); + int16x4_t rot3_1 = vdup_n_s16(stbi__f2f( 2.053119869f)); + int16x4_t rot3_2 = vdup_n_s16(stbi__f2f( 3.072711026f)); + int16x4_t rot3_3 = vdup_n_s16(stbi__f2f( 1.501321110f)); + +#define dct_long_mul(out, inq, coeff) \ + int32x4_t out##_l = vmull_s16(vget_low_s16(inq), coeff); \ + int32x4_t out##_h = vmull_s16(vget_high_s16(inq), coeff) + +#define dct_long_mac(out, acc, inq, coeff) \ + int32x4_t out##_l = vmlal_s16(acc##_l, vget_low_s16(inq), coeff); \ + int32x4_t out##_h = vmlal_s16(acc##_h, vget_high_s16(inq), coeff) + +#define dct_widen(out, inq) \ + int32x4_t out##_l = vshll_n_s16(vget_low_s16(inq), 12); \ + int32x4_t out##_h = vshll_n_s16(vget_high_s16(inq), 12) + +// wide add +#define dct_wadd(out, a, b) \ + int32x4_t out##_l = vaddq_s32(a##_l, b##_l); \ + int32x4_t out##_h = vaddq_s32(a##_h, b##_h) + +// wide sub +#define dct_wsub(out, a, b) \ + int32x4_t out##_l = vsubq_s32(a##_l, b##_l); \ + int32x4_t out##_h = vsubq_s32(a##_h, b##_h) + +// butterfly a/b, then shift using "shiftop" by "s" and pack +#define dct_bfly32o(out0,out1, a,b,shiftop,s) \ + { \ + dct_wadd(sum, a, b); \ + dct_wsub(dif, a, b); \ + out0 = vcombine_s16(shiftop(sum_l, s), shiftop(sum_h, s)); \ + out1 = vcombine_s16(shiftop(dif_l, s), shiftop(dif_h, s)); \ + } + +#define dct_pass(shiftop, shift) \ + { \ + /* even part */ \ + int16x8_t sum26 = vaddq_s16(row2, row6); \ + dct_long_mul(p1e, sum26, rot0_0); \ + dct_long_mac(t2e, p1e, row6, rot0_1); \ + dct_long_mac(t3e, p1e, row2, rot0_2); \ + int16x8_t sum04 = vaddq_s16(row0, row4); \ + int16x8_t dif04 = vsubq_s16(row0, row4); \ + dct_widen(t0e, sum04); \ + dct_widen(t1e, dif04); \ + dct_wadd(x0, t0e, t3e); \ + dct_wsub(x3, t0e, t3e); \ + dct_wadd(x1, t1e, t2e); \ + dct_wsub(x2, t1e, t2e); \ + /* odd part */ \ + int16x8_t sum15 = vaddq_s16(row1, row5); \ + int16x8_t sum17 = vaddq_s16(row1, row7); \ + int16x8_t sum35 = vaddq_s16(row3, row5); \ + int16x8_t sum37 = vaddq_s16(row3, row7); \ + int16x8_t sumodd = vaddq_s16(sum17, sum35); \ + dct_long_mul(p5o, sumodd, rot1_0); \ + dct_long_mac(p1o, p5o, sum17, rot1_1); \ + dct_long_mac(p2o, p5o, sum35, rot1_2); \ + dct_long_mul(p3o, sum37, rot2_0); \ + dct_long_mul(p4o, sum15, rot2_1); \ + dct_wadd(sump13o, p1o, p3o); \ + dct_wadd(sump24o, p2o, p4o); \ + dct_wadd(sump23o, p2o, p3o); \ + dct_wadd(sump14o, p1o, p4o); \ + dct_long_mac(x4, sump13o, row7, rot3_0); \ + dct_long_mac(x5, sump24o, row5, rot3_1); \ + dct_long_mac(x6, sump23o, row3, rot3_2); \ + dct_long_mac(x7, sump14o, row1, rot3_3); \ + dct_bfly32o(row0,row7, x0,x7,shiftop,shift); \ + dct_bfly32o(row1,row6, x1,x6,shiftop,shift); \ + dct_bfly32o(row2,row5, x2,x5,shiftop,shift); \ + dct_bfly32o(row3,row4, x3,x4,shiftop,shift); \ + } + + // load + row0 = vld1q_s16(data + 0*8); + row1 = vld1q_s16(data + 1*8); + row2 = vld1q_s16(data + 2*8); + row3 = vld1q_s16(data + 3*8); + row4 = vld1q_s16(data + 4*8); + row5 = vld1q_s16(data + 5*8); + row6 = vld1q_s16(data + 6*8); + row7 = vld1q_s16(data + 7*8); + + // add DC bias + row0 = vaddq_s16(row0, vsetq_lane_s16(1024, vdupq_n_s16(0), 0)); + + // column pass + dct_pass(vrshrn_n_s32, 10); + + // 16bit 8x8 transpose + { +// these three map to a single VTRN.16, VTRN.32, and VSWP, respectively. +// whether compilers actually get this is another story, sadly. +#define dct_trn16(x, y) { int16x8x2_t t = vtrnq_s16(x, y); x = t.val[0]; y = t.val[1]; } +#define dct_trn32(x, y) { int32x4x2_t t = vtrnq_s32(vreinterpretq_s32_s16(x), vreinterpretq_s32_s16(y)); x = vreinterpretq_s16_s32(t.val[0]); y = vreinterpretq_s16_s32(t.val[1]); } +#define dct_trn64(x, y) { int16x8_t x0 = x; int16x8_t y0 = y; x = vcombine_s16(vget_low_s16(x0), vget_low_s16(y0)); y = vcombine_s16(vget_high_s16(x0), vget_high_s16(y0)); } + + // pass 1 + dct_trn16(row0, row1); // a0b0a2b2a4b4a6b6 + dct_trn16(row2, row3); + dct_trn16(row4, row5); + dct_trn16(row6, row7); + + // pass 2 + dct_trn32(row0, row2); // a0b0c0d0a4b4c4d4 + dct_trn32(row1, row3); + dct_trn32(row4, row6); + dct_trn32(row5, row7); + + // pass 3 + dct_trn64(row0, row4); // a0b0c0d0e0f0g0h0 + dct_trn64(row1, row5); + dct_trn64(row2, row6); + dct_trn64(row3, row7); + +#undef dct_trn16 +#undef dct_trn32 +#undef dct_trn64 + } + + // row pass + // vrshrn_n_s32 only supports shifts up to 16, we need + // 17. so do a non-rounding shift of 16 first then follow + // up with a rounding shift by 1. + dct_pass(vshrn_n_s32, 16); + + { + // pack and round + uint8x8_t p0 = vqrshrun_n_s16(row0, 1); + uint8x8_t p1 = vqrshrun_n_s16(row1, 1); + uint8x8_t p2 = vqrshrun_n_s16(row2, 1); + uint8x8_t p3 = vqrshrun_n_s16(row3, 1); + uint8x8_t p4 = vqrshrun_n_s16(row4, 1); + uint8x8_t p5 = vqrshrun_n_s16(row5, 1); + uint8x8_t p6 = vqrshrun_n_s16(row6, 1); + uint8x8_t p7 = vqrshrun_n_s16(row7, 1); + + // again, these can translate into one instruction, but often don't. +#define dct_trn8_8(x, y) { uint8x8x2_t t = vtrn_u8(x, y); x = t.val[0]; y = t.val[1]; } +#define dct_trn8_16(x, y) { uint16x4x2_t t = vtrn_u16(vreinterpret_u16_u8(x), vreinterpret_u16_u8(y)); x = vreinterpret_u8_u16(t.val[0]); y = vreinterpret_u8_u16(t.val[1]); } +#define dct_trn8_32(x, y) { uint32x2x2_t t = vtrn_u32(vreinterpret_u32_u8(x), vreinterpret_u32_u8(y)); x = vreinterpret_u8_u32(t.val[0]); y = vreinterpret_u8_u32(t.val[1]); } + + // sadly can't use interleaved stores here since we only write + // 8 bytes to each scan line! + + // 8x8 8-bit transpose pass 1 + dct_trn8_8(p0, p1); + dct_trn8_8(p2, p3); + dct_trn8_8(p4, p5); + dct_trn8_8(p6, p7); + + // pass 2 + dct_trn8_16(p0, p2); + dct_trn8_16(p1, p3); + dct_trn8_16(p4, p6); + dct_trn8_16(p5, p7); + + // pass 3 + dct_trn8_32(p0, p4); + dct_trn8_32(p1, p5); + dct_trn8_32(p2, p6); + dct_trn8_32(p3, p7); + + // store + vst1_u8(out, p0); out += out_stride; + vst1_u8(out, p1); out += out_stride; + vst1_u8(out, p2); out += out_stride; + vst1_u8(out, p3); out += out_stride; + vst1_u8(out, p4); out += out_stride; + vst1_u8(out, p5); out += out_stride; + vst1_u8(out, p6); out += out_stride; + vst1_u8(out, p7); + +#undef dct_trn8_8 +#undef dct_trn8_16 +#undef dct_trn8_32 + } + +#undef dct_long_mul +#undef dct_long_mac +#undef dct_widen +#undef dct_wadd +#undef dct_wsub +#undef dct_bfly32o +#undef dct_pass +} + +#endif // STBI_NEON + +#define STBI__MARKER_none 0xff +// if there's a pending marker from the entropy stream, return that +// otherwise, fetch from the stream and get a marker. if there's no +// marker, return 0xff, which is never a valid marker value +static stbi_uc stbi__get_marker(stbi__jpeg *j) +{ + stbi_uc x; + if (j->marker != STBI__MARKER_none) { x = j->marker; j->marker = STBI__MARKER_none; return x; } + x = stbi__get8(j->s); + if (x != 0xff) return STBI__MARKER_none; + while (x == 0xff) + x = stbi__get8(j->s); // consume repeated 0xff fill bytes + return x; +} + +// in each scan, we'll have scan_n components, and the order +// of the components is specified by order[] +#define STBI__RESTART(x) ((x) >= 0xd0 && (x) <= 0xd7) + +// after a restart interval, stbi__jpeg_reset the entropy decoder and +// the dc prediction +static void stbi__jpeg_reset(stbi__jpeg *j) +{ + j->code_bits = 0; + j->code_buffer = 0; + j->nomore = 0; + j->img_comp[0].dc_pred = j->img_comp[1].dc_pred = j->img_comp[2].dc_pred = j->img_comp[3].dc_pred = 0; + j->marker = STBI__MARKER_none; + j->todo = j->restart_interval ? j->restart_interval : 0x7fffffff; + j->eob_run = 0; + // no more than 1<<31 MCUs if no restart_interal? that's plenty safe, + // since we don't even allow 1<<30 pixels +} + +static int stbi__parse_entropy_coded_data(stbi__jpeg *z) +{ + stbi__jpeg_reset(z); + if (!z->progressive) { + if (z->scan_n == 1) { + int i,j; + STBI_SIMD_ALIGN(short, data[64]); + int n = z->order[0]; + // non-interleaved data, we just need to process one block at a time, + // in trivial scanline order + // number of blocks to do just depends on how many actual "pixels" this + // component has, independent of interleaved MCU blocking and such + int w = (z->img_comp[n].x+7) >> 3; + int h = (z->img_comp[n].y+7) >> 3; + for (j=0; j < h; ++j) { + for (i=0; i < w; ++i) { + int ha = z->img_comp[n].ha; + if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0; + z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data); + // every data block is an MCU, so countdown the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + // if it's NOT a restart, then just bail, so we get corrupt data + // rather than no data + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } else { // interleaved + int i,j,k,x,y; + STBI_SIMD_ALIGN(short, data[64]); + for (j=0; j < z->img_mcu_y; ++j) { + for (i=0; i < z->img_mcu_x; ++i) { + // scan an interleaved mcu... process scan_n components in order + for (k=0; k < z->scan_n; ++k) { + int n = z->order[k]; + // scan out an mcu's worth of this component; that's just determined + // by the basic H and V specified for the component + for (y=0; y < z->img_comp[n].v; ++y) { + for (x=0; x < z->img_comp[n].h; ++x) { + int x2 = (i*z->img_comp[n].h + x)*8; + int y2 = (j*z->img_comp[n].v + y)*8; + int ha = z->img_comp[n].ha; + if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0; + z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*y2+x2, z->img_comp[n].w2, data); + } + } + } + // after all interleaved components, that's an interleaved MCU, + // so now count down the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } + } else { + if (z->scan_n == 1) { + int i,j; + int n = z->order[0]; + // non-interleaved data, we just need to process one block at a time, + // in trivial scanline order + // number of blocks to do just depends on how many actual "pixels" this + // component has, independent of interleaved MCU blocking and such + int w = (z->img_comp[n].x+7) >> 3; + int h = (z->img_comp[n].y+7) >> 3; + for (j=0; j < h; ++j) { + for (i=0; i < w; ++i) { + short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w); + if (z->spec_start == 0) { + if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n)) + return 0; + } else { + int ha = z->img_comp[n].ha; + if (!stbi__jpeg_decode_block_prog_ac(z, data, &z->huff_ac[ha], z->fast_ac[ha])) + return 0; + } + // every data block is an MCU, so countdown the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } else { // interleaved + int i,j,k,x,y; + for (j=0; j < z->img_mcu_y; ++j) { + for (i=0; i < z->img_mcu_x; ++i) { + // scan an interleaved mcu... process scan_n components in order + for (k=0; k < z->scan_n; ++k) { + int n = z->order[k]; + // scan out an mcu's worth of this component; that's just determined + // by the basic H and V specified for the component + for (y=0; y < z->img_comp[n].v; ++y) { + for (x=0; x < z->img_comp[n].h; ++x) { + int x2 = (i*z->img_comp[n].h + x); + int y2 = (j*z->img_comp[n].v + y); + short *data = z->img_comp[n].coeff + 64 * (x2 + y2 * z->img_comp[n].coeff_w); + if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n)) + return 0; + } + } + } + // after all interleaved components, that's an interleaved MCU, + // so now count down the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } + } +} + +static void stbi__jpeg_dequantize(short *data, stbi__uint16 *dequant) +{ + int i; + for (i=0; i < 64; ++i) + data[i] *= dequant[i]; +} + +static void stbi__jpeg_finish(stbi__jpeg *z) +{ + if (z->progressive) { + // dequantize and idct the data + int i,j,n; + for (n=0; n < z->s->img_n; ++n) { + int w = (z->img_comp[n].x+7) >> 3; + int h = (z->img_comp[n].y+7) >> 3; + for (j=0; j < h; ++j) { + for (i=0; i < w; ++i) { + short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w); + stbi__jpeg_dequantize(data, z->dequant[z->img_comp[n].tq]); + z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data); + } + } + } + } +} + +static int stbi__process_marker(stbi__jpeg *z, int m) +{ + int L; + switch (m) { + case STBI__MARKER_none: // no marker found + return stbi__err("expected marker","Corrupt JPEG"); + + case 0xDD: // DRI - specify restart interval + if (stbi__get16be(z->s) != 4) return stbi__err("bad DRI len","Corrupt JPEG"); + z->restart_interval = stbi__get16be(z->s); + return 1; + + case 0xDB: // DQT - define quantization table + L = stbi__get16be(z->s)-2; + while (L > 0) { + int q = stbi__get8(z->s); + int p = q >> 4, sixteen = (p != 0); + int t = q & 15,i; + if (p != 0 && p != 1) return stbi__err("bad DQT type","Corrupt JPEG"); + if (t > 3) return stbi__err("bad DQT table","Corrupt JPEG"); + + for (i=0; i < 64; ++i) + z->dequant[t][stbi__jpeg_dezigzag[i]] = (stbi__uint16)(sixteen ? stbi__get16be(z->s) : stbi__get8(z->s)); + L -= (sixteen ? 129 : 65); + } + return L==0; + + case 0xC4: // DHT - define huffman table + L = stbi__get16be(z->s)-2; + while (L > 0) { + stbi_uc *v; + int sizes[16],i,n=0; + int q = stbi__get8(z->s); + int tc = q >> 4; + int th = q & 15; + if (tc > 1 || th > 3) return stbi__err("bad DHT header","Corrupt JPEG"); + for (i=0; i < 16; ++i) { + sizes[i] = stbi__get8(z->s); + n += sizes[i]; + } + L -= 17; + if (tc == 0) { + if (!stbi__build_huffman(z->huff_dc+th, sizes)) return 0; + v = z->huff_dc[th].values; + } else { + if (!stbi__build_huffman(z->huff_ac+th, sizes)) return 0; + v = z->huff_ac[th].values; + } + for (i=0; i < n; ++i) + v[i] = stbi__get8(z->s); + if (tc != 0) + stbi__build_fast_ac(z->fast_ac[th], z->huff_ac + th); + L -= n; + } + return L==0; + } + + // check for comment block or APP blocks + if ((m >= 0xE0 && m <= 0xEF) || m == 0xFE) { + L = stbi__get16be(z->s); + if (L < 2) { + if (m == 0xFE) + return stbi__err("bad COM len","Corrupt JPEG"); + else + return stbi__err("bad APP len","Corrupt JPEG"); + } + L -= 2; + + if (m == 0xE0 && L >= 5) { // JFIF APP0 segment + static const unsigned char tag[5] = {'J','F','I','F','\0'}; + int ok = 1; + int i; + for (i=0; i < 5; ++i) + if (stbi__get8(z->s) != tag[i]) + ok = 0; + L -= 5; + if (ok) + z->jfif = 1; + } else if (m == 0xEE && L >= 12) { // Adobe APP14 segment + static const unsigned char tag[6] = {'A','d','o','b','e','\0'}; + int ok = 1; + int i; + for (i=0; i < 6; ++i) + if (stbi__get8(z->s) != tag[i]) + ok = 0; + L -= 6; + if (ok) { + stbi__get8(z->s); // version + stbi__get16be(z->s); // flags0 + stbi__get16be(z->s); // flags1 + z->app14_color_transform = stbi__get8(z->s); // color transform + L -= 6; + } + } + + stbi__skip(z->s, L); + return 1; + } + + return stbi__err("unknown marker","Corrupt JPEG"); +} + +// after we see SOS +static int stbi__process_scan_header(stbi__jpeg *z) +{ + int i; + int Ls = stbi__get16be(z->s); + z->scan_n = stbi__get8(z->s); + if (z->scan_n < 1 || z->scan_n > 4 || z->scan_n > (int) z->s->img_n) return stbi__err("bad SOS component count","Corrupt JPEG"); + if (Ls != 6+2*z->scan_n) return stbi__err("bad SOS len","Corrupt JPEG"); + for (i=0; i < z->scan_n; ++i) { + int id = stbi__get8(z->s), which; + int q = stbi__get8(z->s); + for (which = 0; which < z->s->img_n; ++which) + if (z->img_comp[which].id == id) + break; + if (which == z->s->img_n) return 0; // no match + z->img_comp[which].hd = q >> 4; if (z->img_comp[which].hd > 3) return stbi__err("bad DC huff","Corrupt JPEG"); + z->img_comp[which].ha = q & 15; if (z->img_comp[which].ha > 3) return stbi__err("bad AC huff","Corrupt JPEG"); + z->order[i] = which; + } + + { + int aa; + z->spec_start = stbi__get8(z->s); + z->spec_end = stbi__get8(z->s); // should be 63, but might be 0 + aa = stbi__get8(z->s); + z->succ_high = (aa >> 4); + z->succ_low = (aa & 15); + if (z->progressive) { + if (z->spec_start > 63 || z->spec_end > 63 || z->spec_start > z->spec_end || z->succ_high > 13 || z->succ_low > 13) + return stbi__err("bad SOS", "Corrupt JPEG"); + } else { + if (z->spec_start != 0) return stbi__err("bad SOS","Corrupt JPEG"); + if (z->succ_high != 0 || z->succ_low != 0) return stbi__err("bad SOS","Corrupt JPEG"); + z->spec_end = 63; + } + } + + return 1; +} + +static int stbi__free_jpeg_components(stbi__jpeg *z, int ncomp, int why) +{ + int i; + for (i=0; i < ncomp; ++i) { + if (z->img_comp[i].raw_data) { + STBI_FREE(z->img_comp[i].raw_data); + z->img_comp[i].raw_data = NULL; + z->img_comp[i].data = NULL; + } + if (z->img_comp[i].raw_coeff) { + STBI_FREE(z->img_comp[i].raw_coeff); + z->img_comp[i].raw_coeff = 0; + z->img_comp[i].coeff = 0; + } + if (z->img_comp[i].linebuf) { + STBI_FREE(z->img_comp[i].linebuf); + z->img_comp[i].linebuf = NULL; + } + } + return why; +} + +static int stbi__process_frame_header(stbi__jpeg *z, int scan) +{ + stbi__context *s = z->s; + int Lf,p,i,q, h_max=1,v_max=1,c; + Lf = stbi__get16be(s); if (Lf < 11) return stbi__err("bad SOF len","Corrupt JPEG"); // JPEG + p = stbi__get8(s); if (p != 8) return stbi__err("only 8-bit","JPEG format not supported: 8-bit only"); // JPEG baseline + s->img_y = stbi__get16be(s); if (s->img_y == 0) return stbi__err("no header height", "JPEG format not supported: delayed height"); // Legal, but we don't handle it--but neither does IJG + s->img_x = stbi__get16be(s); if (s->img_x == 0) return stbi__err("0 width","Corrupt JPEG"); // JPEG requires + if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + c = stbi__get8(s); + if (c != 3 && c != 1 && c != 4) return stbi__err("bad component count","Corrupt JPEG"); + s->img_n = c; + for (i=0; i < c; ++i) { + z->img_comp[i].data = NULL; + z->img_comp[i].linebuf = NULL; + } + + if (Lf != 8+3*s->img_n) return stbi__err("bad SOF len","Corrupt JPEG"); + + z->rgb = 0; + for (i=0; i < s->img_n; ++i) { + static const unsigned char rgb[3] = { 'R', 'G', 'B' }; + z->img_comp[i].id = stbi__get8(s); + if (s->img_n == 3 && z->img_comp[i].id == rgb[i]) + ++z->rgb; + q = stbi__get8(s); + z->img_comp[i].h = (q >> 4); if (!z->img_comp[i].h || z->img_comp[i].h > 4) return stbi__err("bad H","Corrupt JPEG"); + z->img_comp[i].v = q & 15; if (!z->img_comp[i].v || z->img_comp[i].v > 4) return stbi__err("bad V","Corrupt JPEG"); + z->img_comp[i].tq = stbi__get8(s); if (z->img_comp[i].tq > 3) return stbi__err("bad TQ","Corrupt JPEG"); + } + + if (scan != STBI__SCAN_load) return 1; + + if (!stbi__mad3sizes_valid(s->img_x, s->img_y, s->img_n, 0)) return stbi__err("too large", "Image too large to decode"); + + for (i=0; i < s->img_n; ++i) { + if (z->img_comp[i].h > h_max) h_max = z->img_comp[i].h; + if (z->img_comp[i].v > v_max) v_max = z->img_comp[i].v; + } + + // compute interleaved mcu info + z->img_h_max = h_max; + z->img_v_max = v_max; + z->img_mcu_w = h_max * 8; + z->img_mcu_h = v_max * 8; + // these sizes can't be more than 17 bits + z->img_mcu_x = (s->img_x + z->img_mcu_w-1) / z->img_mcu_w; + z->img_mcu_y = (s->img_y + z->img_mcu_h-1) / z->img_mcu_h; + + for (i=0; i < s->img_n; ++i) { + // number of effective pixels (e.g. for non-interleaved MCU) + z->img_comp[i].x = (s->img_x * z->img_comp[i].h + h_max-1) / h_max; + z->img_comp[i].y = (s->img_y * z->img_comp[i].v + v_max-1) / v_max; + // to simplify generation, we'll allocate enough memory to decode + // the bogus oversized data from using interleaved MCUs and their + // big blocks (e.g. a 16x16 iMCU on an image of width 33); we won't + // discard the extra data until colorspace conversion + // + // img_mcu_x, img_mcu_y: <=17 bits; comp[i].h and .v are <=4 (checked earlier) + // so these muls can't overflow with 32-bit ints (which we require) + z->img_comp[i].w2 = z->img_mcu_x * z->img_comp[i].h * 8; + z->img_comp[i].h2 = z->img_mcu_y * z->img_comp[i].v * 8; + z->img_comp[i].coeff = 0; + z->img_comp[i].raw_coeff = 0; + z->img_comp[i].linebuf = NULL; + z->img_comp[i].raw_data = stbi__malloc_mad2(z->img_comp[i].w2, z->img_comp[i].h2, 15); + if (z->img_comp[i].raw_data == NULL) + return stbi__free_jpeg_components(z, i+1, stbi__err("outofmem", "Out of memory")); + // align blocks for idct using mmx/sse + z->img_comp[i].data = (stbi_uc*) (((size_t) z->img_comp[i].raw_data + 15) & ~15); + if (z->progressive) { + // w2, h2 are multiples of 8 (see above) + z->img_comp[i].coeff_w = z->img_comp[i].w2 / 8; + z->img_comp[i].coeff_h = z->img_comp[i].h2 / 8; + z->img_comp[i].raw_coeff = stbi__malloc_mad3(z->img_comp[i].w2, z->img_comp[i].h2, sizeof(short), 15); + if (z->img_comp[i].raw_coeff == NULL) + return stbi__free_jpeg_components(z, i+1, stbi__err("outofmem", "Out of memory")); + z->img_comp[i].coeff = (short*) (((size_t) z->img_comp[i].raw_coeff + 15) & ~15); + } + } + + return 1; +} + +// use comparisons since in some cases we handle more than one case (e.g. SOF) +#define stbi__DNL(x) ((x) == 0xdc) +#define stbi__SOI(x) ((x) == 0xd8) +#define stbi__EOI(x) ((x) == 0xd9) +#define stbi__SOF(x) ((x) == 0xc0 || (x) == 0xc1 || (x) == 0xc2) +#define stbi__SOS(x) ((x) == 0xda) + +#define stbi__SOF_progressive(x) ((x) == 0xc2) + +static int stbi__decode_jpeg_header(stbi__jpeg *z, int scan) +{ + int m; + z->jfif = 0; + z->app14_color_transform = -1; // valid values are 0,1,2 + z->marker = STBI__MARKER_none; // initialize cached marker to empty + m = stbi__get_marker(z); + if (!stbi__SOI(m)) return stbi__err("no SOI","Corrupt JPEG"); + if (scan == STBI__SCAN_type) return 1; + m = stbi__get_marker(z); + while (!stbi__SOF(m)) { + if (!stbi__process_marker(z,m)) return 0; + m = stbi__get_marker(z); + while (m == STBI__MARKER_none) { + // some files have extra padding after their blocks, so ok, we'll scan + if (stbi__at_eof(z->s)) return stbi__err("no SOF", "Corrupt JPEG"); + m = stbi__get_marker(z); + } + } + z->progressive = stbi__SOF_progressive(m); + if (!stbi__process_frame_header(z, scan)) return 0; + return 1; +} + +// decode image to YCbCr format +static int stbi__decode_jpeg_image(stbi__jpeg *j) +{ + int m; + for (m = 0; m < 4; m++) { + j->img_comp[m].raw_data = NULL; + j->img_comp[m].raw_coeff = NULL; + } + j->restart_interval = 0; + if (!stbi__decode_jpeg_header(j, STBI__SCAN_load)) return 0; + m = stbi__get_marker(j); + while (!stbi__EOI(m)) { + if (stbi__SOS(m)) { + if (!stbi__process_scan_header(j)) return 0; + if (!stbi__parse_entropy_coded_data(j)) return 0; + if (j->marker == STBI__MARKER_none ) { + // handle 0s at the end of image data from IP Kamera 9060 + while (!stbi__at_eof(j->s)) { + int x = stbi__get8(j->s); + if (x == 255) { + j->marker = stbi__get8(j->s); + break; + } + } + // if we reach eof without hitting a marker, stbi__get_marker() below will fail and we'll eventually return 0 + } + } else if (stbi__DNL(m)) { + int Ld = stbi__get16be(j->s); + stbi__uint32 NL = stbi__get16be(j->s); + if (Ld != 4) return stbi__err("bad DNL len", "Corrupt JPEG"); + if (NL != j->s->img_y) return stbi__err("bad DNL height", "Corrupt JPEG"); + } else { + if (!stbi__process_marker(j, m)) return 0; + } + m = stbi__get_marker(j); + } + if (j->progressive) + stbi__jpeg_finish(j); + return 1; +} + +// static jfif-centered resampling (across block boundaries) + +typedef stbi_uc *(*resample_row_func)(stbi_uc *out, stbi_uc *in0, stbi_uc *in1, + int w, int hs); + +#define stbi__div4(x) ((stbi_uc) ((x) >> 2)) + +static stbi_uc *resample_row_1(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + STBI_NOTUSED(out); + STBI_NOTUSED(in_far); + STBI_NOTUSED(w); + STBI_NOTUSED(hs); + return in_near; +} + +static stbi_uc* stbi__resample_row_v_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate two samples vertically for every one in input + int i; + STBI_NOTUSED(hs); + for (i=0; i < w; ++i) + out[i] = stbi__div4(3*in_near[i] + in_far[i] + 2); + return out; +} + +static stbi_uc* stbi__resample_row_h_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate two samples horizontally for every one in input + int i; + stbi_uc *input = in_near; + + if (w == 1) { + // if only one sample, can't do any interpolation + out[0] = out[1] = input[0]; + return out; + } + + out[0] = input[0]; + out[1] = stbi__div4(input[0]*3 + input[1] + 2); + for (i=1; i < w-1; ++i) { + int n = 3*input[i]+2; + out[i*2+0] = stbi__div4(n+input[i-1]); + out[i*2+1] = stbi__div4(n+input[i+1]); + } + out[i*2+0] = stbi__div4(input[w-2]*3 + input[w-1] + 2); + out[i*2+1] = input[w-1]; + + STBI_NOTUSED(in_far); + STBI_NOTUSED(hs); + + return out; +} + +#define stbi__div16(x) ((stbi_uc) ((x) >> 4)) + +static stbi_uc *stbi__resample_row_hv_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate 2x2 samples for every one in input + int i,t0,t1; + if (w == 1) { + out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2); + return out; + } + + t1 = 3*in_near[0] + in_far[0]; + out[0] = stbi__div4(t1+2); + for (i=1; i < w; ++i) { + t0 = t1; + t1 = 3*in_near[i]+in_far[i]; + out[i*2-1] = stbi__div16(3*t0 + t1 + 8); + out[i*2 ] = stbi__div16(3*t1 + t0 + 8); + } + out[w*2-1] = stbi__div4(t1+2); + + STBI_NOTUSED(hs); + + return out; +} + +#if defined(STBI_SSE2) || defined(STBI_NEON) +static stbi_uc *stbi__resample_row_hv_2_simd(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate 2x2 samples for every one in input + int i=0,t0,t1; + + if (w == 1) { + out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2); + return out; + } + + t1 = 3*in_near[0] + in_far[0]; + // process groups of 8 pixels for as long as we can. + // note we can't handle the last pixel in a row in this loop + // because we need to handle the filter boundary conditions. + for (; i < ((w-1) & ~7); i += 8) { +#if defined(STBI_SSE2) + // load and perform the vertical filtering pass + // this uses 3*x + y = 4*x + (y - x) + __m128i zero = _mm_setzero_si128(); + __m128i farb = _mm_loadl_epi64((__m128i *) (in_far + i)); + __m128i nearb = _mm_loadl_epi64((__m128i *) (in_near + i)); + __m128i farw = _mm_unpacklo_epi8(farb, zero); + __m128i nearw = _mm_unpacklo_epi8(nearb, zero); + __m128i diff = _mm_sub_epi16(farw, nearw); + __m128i nears = _mm_slli_epi16(nearw, 2); + __m128i curr = _mm_add_epi16(nears, diff); // current row + + // horizontal filter works the same based on shifted vers of current + // row. "prev" is current row shifted right by 1 pixel; we need to + // insert the previous pixel value (from t1). + // "next" is current row shifted left by 1 pixel, with first pixel + // of next block of 8 pixels added in. + __m128i prv0 = _mm_slli_si128(curr, 2); + __m128i nxt0 = _mm_srli_si128(curr, 2); + __m128i prev = _mm_insert_epi16(prv0, t1, 0); + __m128i next = _mm_insert_epi16(nxt0, 3*in_near[i+8] + in_far[i+8], 7); + + // horizontal filter, polyphase implementation since it's convenient: + // even pixels = 3*cur + prev = cur*4 + (prev - cur) + // odd pixels = 3*cur + next = cur*4 + (next - cur) + // note the shared term. + __m128i bias = _mm_set1_epi16(8); + __m128i curs = _mm_slli_epi16(curr, 2); + __m128i prvd = _mm_sub_epi16(prev, curr); + __m128i nxtd = _mm_sub_epi16(next, curr); + __m128i curb = _mm_add_epi16(curs, bias); + __m128i even = _mm_add_epi16(prvd, curb); + __m128i odd = _mm_add_epi16(nxtd, curb); + + // interleave even and odd pixels, then undo scaling. + __m128i int0 = _mm_unpacklo_epi16(even, odd); + __m128i int1 = _mm_unpackhi_epi16(even, odd); + __m128i de0 = _mm_srli_epi16(int0, 4); + __m128i de1 = _mm_srli_epi16(int1, 4); + + // pack and write output + __m128i outv = _mm_packus_epi16(de0, de1); + _mm_storeu_si128((__m128i *) (out + i*2), outv); +#elif defined(STBI_NEON) + // load and perform the vertical filtering pass + // this uses 3*x + y = 4*x + (y - x) + uint8x8_t farb = vld1_u8(in_far + i); + uint8x8_t nearb = vld1_u8(in_near + i); + int16x8_t diff = vreinterpretq_s16_u16(vsubl_u8(farb, nearb)); + int16x8_t nears = vreinterpretq_s16_u16(vshll_n_u8(nearb, 2)); + int16x8_t curr = vaddq_s16(nears, diff); // current row + + // horizontal filter works the same based on shifted vers of current + // row. "prev" is current row shifted right by 1 pixel; we need to + // insert the previous pixel value (from t1). + // "next" is current row shifted left by 1 pixel, with first pixel + // of next block of 8 pixels added in. + int16x8_t prv0 = vextq_s16(curr, curr, 7); + int16x8_t nxt0 = vextq_s16(curr, curr, 1); + int16x8_t prev = vsetq_lane_s16(t1, prv0, 0); + int16x8_t next = vsetq_lane_s16(3*in_near[i+8] + in_far[i+8], nxt0, 7); + + // horizontal filter, polyphase implementation since it's convenient: + // even pixels = 3*cur + prev = cur*4 + (prev - cur) + // odd pixels = 3*cur + next = cur*4 + (next - cur) + // note the shared term. + int16x8_t curs = vshlq_n_s16(curr, 2); + int16x8_t prvd = vsubq_s16(prev, curr); + int16x8_t nxtd = vsubq_s16(next, curr); + int16x8_t even = vaddq_s16(curs, prvd); + int16x8_t odd = vaddq_s16(curs, nxtd); + + // undo scaling and round, then store with even/odd phases interleaved + uint8x8x2_t o; + o.val[0] = vqrshrun_n_s16(even, 4); + o.val[1] = vqrshrun_n_s16(odd, 4); + vst2_u8(out + i*2, o); +#endif + + // "previous" value for next iter + t1 = 3*in_near[i+7] + in_far[i+7]; + } + + t0 = t1; + t1 = 3*in_near[i] + in_far[i]; + out[i*2] = stbi__div16(3*t1 + t0 + 8); + + for (++i; i < w; ++i) { + t0 = t1; + t1 = 3*in_near[i]+in_far[i]; + out[i*2-1] = stbi__div16(3*t0 + t1 + 8); + out[i*2 ] = stbi__div16(3*t1 + t0 + 8); + } + out[w*2-1] = stbi__div4(t1+2); + + STBI_NOTUSED(hs); + + return out; +} +#endif + +static stbi_uc *stbi__resample_row_generic(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // resample with nearest-neighbor + int i,j; + STBI_NOTUSED(in_far); + for (i=0; i < w; ++i) + for (j=0; j < hs; ++j) + out[i*hs+j] = in_near[i]; + return out; +} + +// this is a reduced-precision calculation of YCbCr-to-RGB introduced +// to make sure the code produces the same results in both SIMD and scalar +#define stbi__float2fixed(x) (((int) ((x) * 4096.0f + 0.5f)) << 8) +static void stbi__YCbCr_to_RGB_row(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step) +{ + int i; + for (i=0; i < count; ++i) { + int y_fixed = (y[i] << 20) + (1<<19); // rounding + int r,g,b; + int cr = pcr[i] - 128; + int cb = pcb[i] - 128; + r = y_fixed + cr* stbi__float2fixed(1.40200f); + g = y_fixed + (cr*-stbi__float2fixed(0.71414f)) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000); + b = y_fixed + cb* stbi__float2fixed(1.77200f); + r >>= 20; + g >>= 20; + b >>= 20; + if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; } + if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; } + if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; } + out[0] = (stbi_uc)r; + out[1] = (stbi_uc)g; + out[2] = (stbi_uc)b; + out[3] = 255; + out += step; + } +} + +#if defined(STBI_SSE2) || defined(STBI_NEON) +static void stbi__YCbCr_to_RGB_simd(stbi_uc *out, stbi_uc const *y, stbi_uc const *pcb, stbi_uc const *pcr, int count, int step) +{ + int i = 0; + +#ifdef STBI_SSE2 + // step == 3 is pretty ugly on the final interleave, and i'm not convinced + // it's useful in practice (you wouldn't use it for textures, for example). + // so just accelerate step == 4 case. + if (step == 4) { + // this is a fairly straightforward implementation and not super-optimized. + __m128i signflip = _mm_set1_epi8(-0x80); + __m128i cr_const0 = _mm_set1_epi16( (short) ( 1.40200f*4096.0f+0.5f)); + __m128i cr_const1 = _mm_set1_epi16( - (short) ( 0.71414f*4096.0f+0.5f)); + __m128i cb_const0 = _mm_set1_epi16( - (short) ( 0.34414f*4096.0f+0.5f)); + __m128i cb_const1 = _mm_set1_epi16( (short) ( 1.77200f*4096.0f+0.5f)); + __m128i y_bias = _mm_set1_epi8((char) (unsigned char) 128); + __m128i xw = _mm_set1_epi16(255); // alpha channel + + for (; i+7 < count; i += 8) { + // load + __m128i y_bytes = _mm_loadl_epi64((__m128i *) (y+i)); + __m128i cr_bytes = _mm_loadl_epi64((__m128i *) (pcr+i)); + __m128i cb_bytes = _mm_loadl_epi64((__m128i *) (pcb+i)); + __m128i cr_biased = _mm_xor_si128(cr_bytes, signflip); // -128 + __m128i cb_biased = _mm_xor_si128(cb_bytes, signflip); // -128 + + // unpack to short (and left-shift cr, cb by 8) + __m128i yw = _mm_unpacklo_epi8(y_bias, y_bytes); + __m128i crw = _mm_unpacklo_epi8(_mm_setzero_si128(), cr_biased); + __m128i cbw = _mm_unpacklo_epi8(_mm_setzero_si128(), cb_biased); + + // color transform + __m128i yws = _mm_srli_epi16(yw, 4); + __m128i cr0 = _mm_mulhi_epi16(cr_const0, crw); + __m128i cb0 = _mm_mulhi_epi16(cb_const0, cbw); + __m128i cb1 = _mm_mulhi_epi16(cbw, cb_const1); + __m128i cr1 = _mm_mulhi_epi16(crw, cr_const1); + __m128i rws = _mm_add_epi16(cr0, yws); + __m128i gwt = _mm_add_epi16(cb0, yws); + __m128i bws = _mm_add_epi16(yws, cb1); + __m128i gws = _mm_add_epi16(gwt, cr1); + + // descale + __m128i rw = _mm_srai_epi16(rws, 4); + __m128i bw = _mm_srai_epi16(bws, 4); + __m128i gw = _mm_srai_epi16(gws, 4); + + // back to byte, set up for transpose + __m128i brb = _mm_packus_epi16(rw, bw); + __m128i gxb = _mm_packus_epi16(gw, xw); + + // transpose to interleave channels + __m128i t0 = _mm_unpacklo_epi8(brb, gxb); + __m128i t1 = _mm_unpackhi_epi8(brb, gxb); + __m128i o0 = _mm_unpacklo_epi16(t0, t1); + __m128i o1 = _mm_unpackhi_epi16(t0, t1); + + // store + _mm_storeu_si128((__m128i *) (out + 0), o0); + _mm_storeu_si128((__m128i *) (out + 16), o1); + out += 32; + } + } +#endif + +#ifdef STBI_NEON + // in this version, step=3 support would be easy to add. but is there demand? + if (step == 4) { + // this is a fairly straightforward implementation and not super-optimized. + uint8x8_t signflip = vdup_n_u8(0x80); + int16x8_t cr_const0 = vdupq_n_s16( (short) ( 1.40200f*4096.0f+0.5f)); + int16x8_t cr_const1 = vdupq_n_s16( - (short) ( 0.71414f*4096.0f+0.5f)); + int16x8_t cb_const0 = vdupq_n_s16( - (short) ( 0.34414f*4096.0f+0.5f)); + int16x8_t cb_const1 = vdupq_n_s16( (short) ( 1.77200f*4096.0f+0.5f)); + + for (; i+7 < count; i += 8) { + // load + uint8x8_t y_bytes = vld1_u8(y + i); + uint8x8_t cr_bytes = vld1_u8(pcr + i); + uint8x8_t cb_bytes = vld1_u8(pcb + i); + int8x8_t cr_biased = vreinterpret_s8_u8(vsub_u8(cr_bytes, signflip)); + int8x8_t cb_biased = vreinterpret_s8_u8(vsub_u8(cb_bytes, signflip)); + + // expand to s16 + int16x8_t yws = vreinterpretq_s16_u16(vshll_n_u8(y_bytes, 4)); + int16x8_t crw = vshll_n_s8(cr_biased, 7); + int16x8_t cbw = vshll_n_s8(cb_biased, 7); + + // color transform + int16x8_t cr0 = vqdmulhq_s16(crw, cr_const0); + int16x8_t cb0 = vqdmulhq_s16(cbw, cb_const0); + int16x8_t cr1 = vqdmulhq_s16(crw, cr_const1); + int16x8_t cb1 = vqdmulhq_s16(cbw, cb_const1); + int16x8_t rws = vaddq_s16(yws, cr0); + int16x8_t gws = vaddq_s16(vaddq_s16(yws, cb0), cr1); + int16x8_t bws = vaddq_s16(yws, cb1); + + // undo scaling, round, convert to byte + uint8x8x4_t o; + o.val[0] = vqrshrun_n_s16(rws, 4); + o.val[1] = vqrshrun_n_s16(gws, 4); + o.val[2] = vqrshrun_n_s16(bws, 4); + o.val[3] = vdup_n_u8(255); + + // store, interleaving r/g/b/a + vst4_u8(out, o); + out += 8*4; + } + } +#endif + + for (; i < count; ++i) { + int y_fixed = (y[i] << 20) + (1<<19); // rounding + int r,g,b; + int cr = pcr[i] - 128; + int cb = pcb[i] - 128; + r = y_fixed + cr* stbi__float2fixed(1.40200f); + g = y_fixed + cr*-stbi__float2fixed(0.71414f) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000); + b = y_fixed + cb* stbi__float2fixed(1.77200f); + r >>= 20; + g >>= 20; + b >>= 20; + if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; } + if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; } + if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; } + out[0] = (stbi_uc)r; + out[1] = (stbi_uc)g; + out[2] = (stbi_uc)b; + out[3] = 255; + out += step; + } +} +#endif + +// set up the kernels +static void stbi__setup_jpeg(stbi__jpeg *j) +{ + j->idct_block_kernel = stbi__idct_block; + j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_row; + j->resample_row_hv_2_kernel = stbi__resample_row_hv_2; + +#ifdef STBI_SSE2 + if (stbi__sse2_available()) { + j->idct_block_kernel = stbi__idct_simd; + j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd; + j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd; + } +#endif + +#ifdef STBI_NEON + j->idct_block_kernel = stbi__idct_simd; + j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd; + j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd; +#endif +} + +// clean up the temporary component buffers +static void stbi__cleanup_jpeg(stbi__jpeg *j) +{ + stbi__free_jpeg_components(j, j->s->img_n, 0); +} + +typedef struct +{ + resample_row_func resample; + stbi_uc *line0,*line1; + int hs,vs; // expansion factor in each axis + int w_lores; // horizontal pixels pre-expansion + int ystep; // how far through vertical expansion we are + int ypos; // which pre-expansion row we're on +} stbi__resample; + +// fast 0..255 * 0..255 => 0..255 rounded multiplication +static stbi_uc stbi__blinn_8x8(stbi_uc x, stbi_uc y) +{ + unsigned int t = x*y + 128; + return (stbi_uc) ((t + (t >>8)) >> 8); +} + +static stbi_uc *load_jpeg_image(stbi__jpeg *z, int *out_x, int *out_y, int *comp, int req_comp) +{ + int n, decode_n, is_rgb; + z->s->img_n = 0; // make stbi__cleanup_jpeg safe + + // validate req_comp + if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error"); + + // load a jpeg image from whichever source, but leave in YCbCr format + if (!stbi__decode_jpeg_image(z)) { stbi__cleanup_jpeg(z); return NULL; } + + // determine actual number of components to generate + n = req_comp ? req_comp : z->s->img_n >= 3 ? 3 : 1; + + is_rgb = z->s->img_n == 3 && (z->rgb == 3 || (z->app14_color_transform == 0 && !z->jfif)); + + if (z->s->img_n == 3 && n < 3 && !is_rgb) + decode_n = 1; + else + decode_n = z->s->img_n; + + // resample and color-convert + { + int k; + unsigned int i,j; + stbi_uc *output; + stbi_uc *coutput[4] = { NULL, NULL, NULL, NULL }; + + stbi__resample res_comp[4]; + + for (k=0; k < decode_n; ++k) { + stbi__resample *r = &res_comp[k]; + + // allocate line buffer big enough for upsampling off the edges + // with upsample factor of 4 + z->img_comp[k].linebuf = (stbi_uc *) stbi__malloc(z->s->img_x + 3); + if (!z->img_comp[k].linebuf) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); } + + r->hs = z->img_h_max / z->img_comp[k].h; + r->vs = z->img_v_max / z->img_comp[k].v; + r->ystep = r->vs >> 1; + r->w_lores = (z->s->img_x + r->hs-1) / r->hs; + r->ypos = 0; + r->line0 = r->line1 = z->img_comp[k].data; + + if (r->hs == 1 && r->vs == 1) r->resample = resample_row_1; + else if (r->hs == 1 && r->vs == 2) r->resample = stbi__resample_row_v_2; + else if (r->hs == 2 && r->vs == 1) r->resample = stbi__resample_row_h_2; + else if (r->hs == 2 && r->vs == 2) r->resample = z->resample_row_hv_2_kernel; + else r->resample = stbi__resample_row_generic; + } + + // can't error after this so, this is safe + output = (stbi_uc *) stbi__malloc_mad3(n, z->s->img_x, z->s->img_y, 1); + if (!output) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); } + + // now go ahead and resample + for (j=0; j < z->s->img_y; ++j) { + stbi_uc *out = output + n * z->s->img_x * j; + for (k=0; k < decode_n; ++k) { + stbi__resample *r = &res_comp[k]; + int y_bot = r->ystep >= (r->vs >> 1); + coutput[k] = r->resample(z->img_comp[k].linebuf, + y_bot ? r->line1 : r->line0, + y_bot ? r->line0 : r->line1, + r->w_lores, r->hs); + if (++r->ystep >= r->vs) { + r->ystep = 0; + r->line0 = r->line1; + if (++r->ypos < z->img_comp[k].y) + r->line1 += z->img_comp[k].w2; + } + } + if (n >= 3) { + stbi_uc *y = coutput[0]; + if (z->s->img_n == 3) { + if (is_rgb) { + for (i=0; i < z->s->img_x; ++i) { + out[0] = y[i]; + out[1] = coutput[1][i]; + out[2] = coutput[2][i]; + out[3] = 255; + out += n; + } + } else { + z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); + } + } else if (z->s->img_n == 4) { + if (z->app14_color_transform == 0) { // CMYK + for (i=0; i < z->s->img_x; ++i) { + stbi_uc m = coutput[3][i]; + out[0] = stbi__blinn_8x8(coutput[0][i], m); + out[1] = stbi__blinn_8x8(coutput[1][i], m); + out[2] = stbi__blinn_8x8(coutput[2][i], m); + out[3] = 255; + out += n; + } + } else if (z->app14_color_transform == 2) { // YCCK + z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); + for (i=0; i < z->s->img_x; ++i) { + stbi_uc m = coutput[3][i]; + out[0] = stbi__blinn_8x8(255 - out[0], m); + out[1] = stbi__blinn_8x8(255 - out[1], m); + out[2] = stbi__blinn_8x8(255 - out[2], m); + out += n; + } + } else { // YCbCr + alpha? Ignore the fourth channel for now + z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); + } + } else + for (i=0; i < z->s->img_x; ++i) { + out[0] = out[1] = out[2] = y[i]; + out[3] = 255; // not used if n==3 + out += n; + } + } else { + if (is_rgb) { + if (n == 1) + for (i=0; i < z->s->img_x; ++i) + *out++ = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]); + else { + for (i=0; i < z->s->img_x; ++i, out += 2) { + out[0] = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]); + out[1] = 255; + } + } + } else if (z->s->img_n == 4 && z->app14_color_transform == 0) { + for (i=0; i < z->s->img_x; ++i) { + stbi_uc m = coutput[3][i]; + stbi_uc r = stbi__blinn_8x8(coutput[0][i], m); + stbi_uc g = stbi__blinn_8x8(coutput[1][i], m); + stbi_uc b = stbi__blinn_8x8(coutput[2][i], m); + out[0] = stbi__compute_y(r, g, b); + out[1] = 255; + out += n; + } + } else if (z->s->img_n == 4 && z->app14_color_transform == 2) { + for (i=0; i < z->s->img_x; ++i) { + out[0] = stbi__blinn_8x8(255 - coutput[0][i], coutput[3][i]); + out[1] = 255; + out += n; + } + } else { + stbi_uc *y = coutput[0]; + if (n == 1) + for (i=0; i < z->s->img_x; ++i) out[i] = y[i]; + else + for (i=0; i < z->s->img_x; ++i) { *out++ = y[i]; *out++ = 255; } + } + } + } + stbi__cleanup_jpeg(z); + *out_x = z->s->img_x; + *out_y = z->s->img_y; + if (comp) *comp = z->s->img_n >= 3 ? 3 : 1; // report original components, not output + return output; + } +} + +static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + unsigned char* result; + stbi__jpeg* j = (stbi__jpeg*) stbi__malloc(sizeof(stbi__jpeg)); + STBI_NOTUSED(ri); + j->s = s; + stbi__setup_jpeg(j); + result = load_jpeg_image(j, x,y,comp,req_comp); + STBI_FREE(j); + return result; +} + +static int stbi__jpeg_test(stbi__context *s) +{ + int r; + stbi__jpeg* j = (stbi__jpeg*)stbi__malloc(sizeof(stbi__jpeg)); + j->s = s; + stbi__setup_jpeg(j); + r = stbi__decode_jpeg_header(j, STBI__SCAN_type); + stbi__rewind(s); + STBI_FREE(j); + return r; +} + +static int stbi__jpeg_info_raw(stbi__jpeg *j, int *x, int *y, int *comp) +{ + if (!stbi__decode_jpeg_header(j, STBI__SCAN_header)) { + stbi__rewind( j->s ); + return 0; + } + if (x) *x = j->s->img_x; + if (y) *y = j->s->img_y; + if (comp) *comp = j->s->img_n >= 3 ? 3 : 1; + return 1; +} + +static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp) +{ + int result; + stbi__jpeg* j = (stbi__jpeg*) (stbi__malloc(sizeof(stbi__jpeg))); + j->s = s; + result = stbi__jpeg_info_raw(j, x, y, comp); + STBI_FREE(j); + return result; +} +#endif + +// public domain zlib decode v0.2 Sean Barrett 2006-11-18 +// simple implementation +// - all input must be provided in an upfront buffer +// - all output is written to a single output buffer (can malloc/realloc) +// performance +// - fast huffman + +#ifndef STBI_NO_ZLIB + +// fast-way is faster to check than jpeg huffman, but slow way is slower +#define STBI__ZFAST_BITS 9 // accelerate all cases in default tables +#define STBI__ZFAST_MASK ((1 << STBI__ZFAST_BITS) - 1) + +// zlib-style huffman encoding +// (jpegs packs from left, zlib from right, so can't share code) +typedef struct +{ + stbi__uint16 fast[1 << STBI__ZFAST_BITS]; + stbi__uint16 firstcode[16]; + int maxcode[17]; + stbi__uint16 firstsymbol[16]; + stbi_uc size[288]; + stbi__uint16 value[288]; +} stbi__zhuffman; + +stbi_inline static int stbi__bitreverse16(int n) +{ + n = ((n & 0xAAAA) >> 1) | ((n & 0x5555) << 1); + n = ((n & 0xCCCC) >> 2) | ((n & 0x3333) << 2); + n = ((n & 0xF0F0) >> 4) | ((n & 0x0F0F) << 4); + n = ((n & 0xFF00) >> 8) | ((n & 0x00FF) << 8); + return n; +} + +stbi_inline static int stbi__bit_reverse(int v, int bits) +{ + STBI_ASSERT(bits <= 16); + // to bit reverse n bits, reverse 16 and shift + // e.g. 11 bits, bit reverse and shift away 5 + return stbi__bitreverse16(v) >> (16-bits); +} + +static int stbi__zbuild_huffman(stbi__zhuffman *z, const stbi_uc *sizelist, int num) +{ + int i,k=0; + int code, next_code[16], sizes[17]; + + // DEFLATE spec for generating codes + memset(sizes, 0, sizeof(sizes)); + memset(z->fast, 0, sizeof(z->fast)); + for (i=0; i < num; ++i) + ++sizes[sizelist[i]]; + sizes[0] = 0; + for (i=1; i < 16; ++i) + if (sizes[i] > (1 << i)) + return stbi__err("bad sizes", "Corrupt PNG"); + code = 0; + for (i=1; i < 16; ++i) { + next_code[i] = code; + z->firstcode[i] = (stbi__uint16) code; + z->firstsymbol[i] = (stbi__uint16) k; + code = (code + sizes[i]); + if (sizes[i]) + if (code-1 >= (1 << i)) return stbi__err("bad codelengths","Corrupt PNG"); + z->maxcode[i] = code << (16-i); // preshift for inner loop + code <<= 1; + k += sizes[i]; + } + z->maxcode[16] = 0x10000; // sentinel + for (i=0; i < num; ++i) { + int s = sizelist[i]; + if (s) { + int c = next_code[s] - z->firstcode[s] + z->firstsymbol[s]; + stbi__uint16 fastv = (stbi__uint16) ((s << 9) | i); + z->size [c] = (stbi_uc ) s; + z->value[c] = (stbi__uint16) i; + if (s <= STBI__ZFAST_BITS) { + int j = stbi__bit_reverse(next_code[s],s); + while (j < (1 << STBI__ZFAST_BITS)) { + z->fast[j] = fastv; + j += (1 << s); + } + } + ++next_code[s]; + } + } + return 1; +} + +// zlib-from-memory implementation for PNG reading +// because PNG allows splitting the zlib stream arbitrarily, +// and it's annoying structurally to have PNG call ZLIB call PNG, +// we require PNG read all the IDATs and combine them into a single +// memory buffer + +typedef struct +{ + stbi_uc *zbuffer, *zbuffer_end; + int num_bits; + stbi__uint32 code_buffer; + + char *zout; + char *zout_start; + char *zout_end; + int z_expandable; + + stbi__zhuffman z_length, z_distance; +} stbi__zbuf; + +stbi_inline static int stbi__zeof(stbi__zbuf *z) +{ + return (z->zbuffer >= z->zbuffer_end); +} + +stbi_inline static stbi_uc stbi__zget8(stbi__zbuf *z) +{ + return stbi__zeof(z) ? 0 : *z->zbuffer++; +} + +static void stbi__fill_bits(stbi__zbuf *z) +{ + do { + if (z->code_buffer >= (1U << z->num_bits)) { + z->zbuffer = z->zbuffer_end; /* treat this as EOF so we fail. */ + return; + } + z->code_buffer |= (unsigned int) stbi__zget8(z) << z->num_bits; + z->num_bits += 8; + } while (z->num_bits <= 24); +} + +stbi_inline static unsigned int stbi__zreceive(stbi__zbuf *z, int n) +{ + unsigned int k; + if (z->num_bits < n) stbi__fill_bits(z); + k = z->code_buffer & ((1 << n) - 1); + z->code_buffer >>= n; + z->num_bits -= n; + return k; +} + +static int stbi__zhuffman_decode_slowpath(stbi__zbuf *a, stbi__zhuffman *z) +{ + int b,s,k; + // not resolved by fast table, so compute it the slow way + // use jpeg approach, which requires MSbits at top + k = stbi__bit_reverse(a->code_buffer, 16); + for (s=STBI__ZFAST_BITS+1; ; ++s) + if (k < z->maxcode[s]) + break; + if (s >= 16) return -1; // invalid code! + // code size is s, so: + b = (k >> (16-s)) - z->firstcode[s] + z->firstsymbol[s]; + if (b >= sizeof (z->size)) return -1; // some data was corrupt somewhere! + if (z->size[b] != s) return -1; // was originally an assert, but report failure instead. + a->code_buffer >>= s; + a->num_bits -= s; + return z->value[b]; +} + +stbi_inline static int stbi__zhuffman_decode(stbi__zbuf *a, stbi__zhuffman *z) +{ + int b,s; + if (a->num_bits < 16) { + if (stbi__zeof(a)) { + return -1; /* report error for unexpected end of data. */ + } + stbi__fill_bits(a); + } + b = z->fast[a->code_buffer & STBI__ZFAST_MASK]; + if (b) { + s = b >> 9; + a->code_buffer >>= s; + a->num_bits -= s; + return b & 511; + } + return stbi__zhuffman_decode_slowpath(a, z); +} + +static int stbi__zexpand(stbi__zbuf *z, char *zout, int n) // need to make room for n bytes +{ + char *q; + unsigned int cur, limit, old_limit; + z->zout = zout; + if (!z->z_expandable) return stbi__err("output buffer limit","Corrupt PNG"); + cur = (unsigned int) (z->zout - z->zout_start); + limit = old_limit = (unsigned) (z->zout_end - z->zout_start); + if (UINT_MAX - cur < (unsigned) n) return stbi__err("outofmem", "Out of memory"); + while (cur + n > limit) { + if(limit > UINT_MAX / 2) return stbi__err("outofmem", "Out of memory"); + limit *= 2; + } + q = (char *) STBI_REALLOC_SIZED(z->zout_start, old_limit, limit); + STBI_NOTUSED(old_limit); + if (q == NULL) return stbi__err("outofmem", "Out of memory"); + z->zout_start = q; + z->zout = q + cur; + z->zout_end = q + limit; + return 1; +} + +static const int stbi__zlength_base[31] = { + 3,4,5,6,7,8,9,10,11,13, + 15,17,19,23,27,31,35,43,51,59, + 67,83,99,115,131,163,195,227,258,0,0 }; + +static const int stbi__zlength_extra[31]= +{ 0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0 }; + +static const int stbi__zdist_base[32] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193, +257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577,0,0}; + +static const int stbi__zdist_extra[32] = +{ 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13}; + +static int stbi__parse_huffman_block(stbi__zbuf *a) +{ + char *zout = a->zout; + for(;;) { + int z = stbi__zhuffman_decode(a, &a->z_length); + if (z < 256) { + if (z < 0) return stbi__err("bad huffman code","Corrupt PNG"); // error in huffman codes + if (zout >= a->zout_end) { + if (!stbi__zexpand(a, zout, 1)) return 0; + zout = a->zout; + } + *zout++ = (char) z; + } else { + stbi_uc *p; + int len,dist; + if (z == 256) { + a->zout = zout; + return 1; + } + z -= 257; + len = stbi__zlength_base[z]; + if (stbi__zlength_extra[z]) len += stbi__zreceive(a, stbi__zlength_extra[z]); + z = stbi__zhuffman_decode(a, &a->z_distance); + if (z < 0) return stbi__err("bad huffman code","Corrupt PNG"); + dist = stbi__zdist_base[z]; + if (stbi__zdist_extra[z]) dist += stbi__zreceive(a, stbi__zdist_extra[z]); + if (zout - a->zout_start < dist) return stbi__err("bad dist","Corrupt PNG"); + if (zout + len > a->zout_end) { + if (!stbi__zexpand(a, zout, len)) return 0; + zout = a->zout; + } + p = (stbi_uc *) (zout - dist); + if (dist == 1) { // run of one byte; common in images. + stbi_uc v = *p; + if (len) { do *zout++ = v; while (--len); } + } else { + if (len) { do *zout++ = *p++; while (--len); } + } + } + } +} + +static int stbi__compute_huffman_codes(stbi__zbuf *a) +{ + static const stbi_uc length_dezigzag[19] = { 16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15 }; + stbi__zhuffman z_codelength; + stbi_uc lencodes[286+32+137];//padding for maximum single op + stbi_uc codelength_sizes[19]; + int i,n; + + int hlit = stbi__zreceive(a,5) + 257; + int hdist = stbi__zreceive(a,5) + 1; + int hclen = stbi__zreceive(a,4) + 4; + int ntot = hlit + hdist; + + memset(codelength_sizes, 0, sizeof(codelength_sizes)); + for (i=0; i < hclen; ++i) { + int s = stbi__zreceive(a,3); + codelength_sizes[length_dezigzag[i]] = (stbi_uc) s; + } + if (!stbi__zbuild_huffman(&z_codelength, codelength_sizes, 19)) return 0; + + n = 0; + while (n < ntot) { + int c = stbi__zhuffman_decode(a, &z_codelength); + if (c < 0 || c >= 19) return stbi__err("bad codelengths", "Corrupt PNG"); + if (c < 16) + lencodes[n++] = (stbi_uc) c; + else { + stbi_uc fill = 0; + if (c == 16) { + c = stbi__zreceive(a,2)+3; + if (n == 0) return stbi__err("bad codelengths", "Corrupt PNG"); + fill = lencodes[n-1]; + } else if (c == 17) { + c = stbi__zreceive(a,3)+3; + } else if (c == 18) { + c = stbi__zreceive(a,7)+11; + } else { + return stbi__err("bad codelengths", "Corrupt PNG"); + } + if (ntot - n < c) return stbi__err("bad codelengths", "Corrupt PNG"); + memset(lencodes+n, fill, c); + n += c; + } + } + if (n != ntot) return stbi__err("bad codelengths","Corrupt PNG"); + if (!stbi__zbuild_huffman(&a->z_length, lencodes, hlit)) return 0; + if (!stbi__zbuild_huffman(&a->z_distance, lencodes+hlit, hdist)) return 0; + return 1; +} + +static int stbi__parse_uncompressed_block(stbi__zbuf *a) +{ + stbi_uc header[4]; + int len,nlen,k; + if (a->num_bits & 7) + stbi__zreceive(a, a->num_bits & 7); // discard + // drain the bit-packed data into header + k = 0; + while (a->num_bits > 0) { + header[k++] = (stbi_uc) (a->code_buffer & 255); // suppress MSVC run-time check + a->code_buffer >>= 8; + a->num_bits -= 8; + } + if (a->num_bits < 0) return stbi__err("zlib corrupt","Corrupt PNG"); + // now fill header the normal way + while (k < 4) + header[k++] = stbi__zget8(a); + len = header[1] * 256 + header[0]; + nlen = header[3] * 256 + header[2]; + if (nlen != (len ^ 0xffff)) return stbi__err("zlib corrupt","Corrupt PNG"); + if (a->zbuffer + len > a->zbuffer_end) return stbi__err("read past buffer","Corrupt PNG"); + if (a->zout + len > a->zout_end) + if (!stbi__zexpand(a, a->zout, len)) return 0; + memcpy(a->zout, a->zbuffer, len); + a->zbuffer += len; + a->zout += len; + return 1; +} + +static int stbi__parse_zlib_header(stbi__zbuf *a) +{ + int cmf = stbi__zget8(a); + int cm = cmf & 15; + /* int cinfo = cmf >> 4; */ + int flg = stbi__zget8(a); + if (stbi__zeof(a)) return stbi__err("bad zlib header","Corrupt PNG"); // zlib spec + if ((cmf*256+flg) % 31 != 0) return stbi__err("bad zlib header","Corrupt PNG"); // zlib spec + if (flg & 32) return stbi__err("no preset dict","Corrupt PNG"); // preset dictionary not allowed in png + if (cm != 8) return stbi__err("bad compression","Corrupt PNG"); // DEFLATE required for png + // window = 1 << (8 + cinfo)... but who cares, we fully buffer output + return 1; +} + +static const stbi_uc stbi__zdefault_length[288] = +{ + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8 +}; +static const stbi_uc stbi__zdefault_distance[32] = +{ + 5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5 +}; +/* +Init algorithm: +{ + int i; // use <= to match clearly with spec + for (i=0; i <= 143; ++i) stbi__zdefault_length[i] = 8; + for ( ; i <= 255; ++i) stbi__zdefault_length[i] = 9; + for ( ; i <= 279; ++i) stbi__zdefault_length[i] = 7; + for ( ; i <= 287; ++i) stbi__zdefault_length[i] = 8; + + for (i=0; i <= 31; ++i) stbi__zdefault_distance[i] = 5; +} +*/ + +static int stbi__parse_zlib(stbi__zbuf *a, int parse_header) +{ + int final, type; + if (parse_header) + if (!stbi__parse_zlib_header(a)) return 0; + a->num_bits = 0; + a->code_buffer = 0; + do { + final = stbi__zreceive(a,1); + type = stbi__zreceive(a,2); + if (type == 0) { + if (!stbi__parse_uncompressed_block(a)) return 0; + } else if (type == 3) { + return 0; + } else { + if (type == 1) { + // use fixed code lengths + if (!stbi__zbuild_huffman(&a->z_length , stbi__zdefault_length , 288)) return 0; + if (!stbi__zbuild_huffman(&a->z_distance, stbi__zdefault_distance, 32)) return 0; + } else { + if (!stbi__compute_huffman_codes(a)) return 0; + } + if (!stbi__parse_huffman_block(a)) return 0; + } + } while (!final); + return 1; +} + +static int stbi__do_zlib(stbi__zbuf *a, char *obuf, int olen, int exp, int parse_header) +{ + a->zout_start = obuf; + a->zout = obuf; + a->zout_end = obuf + olen; + a->z_expandable = exp; + + return stbi__parse_zlib(a, parse_header); +} + +STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen) +{ + stbi__zbuf a; + char *p = (char *) stbi__malloc(initial_size); + if (p == NULL) return NULL; + a.zbuffer = (stbi_uc *) buffer; + a.zbuffer_end = (stbi_uc *) buffer + len; + if (stbi__do_zlib(&a, p, initial_size, 1, 1)) { + if (outlen) *outlen = (int) (a.zout - a.zout_start); + return a.zout_start; + } else { + STBI_FREE(a.zout_start); + return NULL; + } +} + +STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen) +{ + return stbi_zlib_decode_malloc_guesssize(buffer, len, 16384, outlen); +} + +STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header) +{ + stbi__zbuf a; + char *p = (char *) stbi__malloc(initial_size); + if (p == NULL) return NULL; + a.zbuffer = (stbi_uc *) buffer; + a.zbuffer_end = (stbi_uc *) buffer + len; + if (stbi__do_zlib(&a, p, initial_size, 1, parse_header)) { + if (outlen) *outlen = (int) (a.zout - a.zout_start); + return a.zout_start; + } else { + STBI_FREE(a.zout_start); + return NULL; + } +} + +STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen) +{ + stbi__zbuf a; + a.zbuffer = (stbi_uc *) ibuffer; + a.zbuffer_end = (stbi_uc *) ibuffer + ilen; + if (stbi__do_zlib(&a, obuffer, olen, 0, 1)) + return (int) (a.zout - a.zout_start); + else + return -1; +} + +STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen) +{ + stbi__zbuf a; + char *p = (char *) stbi__malloc(16384); + if (p == NULL) return NULL; + a.zbuffer = (stbi_uc *) buffer; + a.zbuffer_end = (stbi_uc *) buffer+len; + if (stbi__do_zlib(&a, p, 16384, 1, 0)) { + if (outlen) *outlen = (int) (a.zout - a.zout_start); + return a.zout_start; + } else { + STBI_FREE(a.zout_start); + return NULL; + } +} + +STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen) +{ + stbi__zbuf a; + a.zbuffer = (stbi_uc *) ibuffer; + a.zbuffer_end = (stbi_uc *) ibuffer + ilen; + if (stbi__do_zlib(&a, obuffer, olen, 0, 0)) + return (int) (a.zout - a.zout_start); + else + return -1; +} +#endif + +// public domain "baseline" PNG decoder v0.10 Sean Barrett 2006-11-18 +// simple implementation +// - only 8-bit samples +// - no CRC checking +// - allocates lots of intermediate memory +// - avoids problem of streaming data between subsystems +// - avoids explicit window management +// performance +// - uses stb_zlib, a PD zlib implementation with fast huffman decoding + +#ifndef STBI_NO_PNG +typedef struct +{ + stbi__uint32 length; + stbi__uint32 type; +} stbi__pngchunk; + +static stbi__pngchunk stbi__get_chunk_header(stbi__context *s) +{ + stbi__pngchunk c; + c.length = stbi__get32be(s); + c.type = stbi__get32be(s); + return c; +} + +static int stbi__check_png_header(stbi__context *s) +{ + static const stbi_uc png_sig[8] = { 137,80,78,71,13,10,26,10 }; + int i; + for (i=0; i < 8; ++i) + if (stbi__get8(s) != png_sig[i]) return stbi__err("bad png sig","Not a PNG"); + return 1; +} + +typedef struct +{ + stbi__context *s; + stbi_uc *idata, *expanded, *out; + int depth; +} stbi__png; + + +enum { + STBI__F_none=0, + STBI__F_sub=1, + STBI__F_up=2, + STBI__F_avg=3, + STBI__F_paeth=4, + // synthetic filters used for first scanline to avoid needing a dummy row of 0s + STBI__F_avg_first, + STBI__F_paeth_first +}; + +static stbi_uc first_row_filter[5] = +{ + STBI__F_none, + STBI__F_sub, + STBI__F_none, + STBI__F_avg_first, + STBI__F_paeth_first +}; + +static int stbi__paeth(int a, int b, int c) +{ + int p = a + b - c; + int pa = abs(p-a); + int pb = abs(p-b); + int pc = abs(p-c); + if (pa <= pb && pa <= pc) return a; + if (pb <= pc) return b; + return c; +} + +static const stbi_uc stbi__depth_scale_table[9] = { 0, 0xff, 0x55, 0, 0x11, 0,0,0, 0x01 }; + +// create the png data from post-deflated data +static int stbi__create_png_image_raw(stbi__png *a, stbi_uc *raw, stbi__uint32 raw_len, int out_n, stbi__uint32 x, stbi__uint32 y, int depth, int color) +{ + int bytes = (depth == 16? 2 : 1); + stbi__context *s = a->s; + stbi__uint32 i,j,stride = x*out_n*bytes; + stbi__uint32 img_len, img_width_bytes; + int k; + int img_n = s->img_n; // copy it into a local for later + + int output_bytes = out_n*bytes; + int filter_bytes = img_n*bytes; + int width = x; + + STBI_ASSERT(out_n == s->img_n || out_n == s->img_n+1); + a->out = (stbi_uc *) stbi__malloc_mad3(x, y, output_bytes, 0); // extra bytes to write off the end into + if (!a->out) return stbi__err("outofmem", "Out of memory"); + + if (!stbi__mad3sizes_valid(img_n, x, depth, 7)) return stbi__err("too large", "Corrupt PNG"); + img_width_bytes = (((img_n * x * depth) + 7) >> 3); + img_len = (img_width_bytes + 1) * y; + + // we used to check for exact match between raw_len and img_len on non-interlaced PNGs, + // but issue #276 reported a PNG in the wild that had extra data at the end (all zeros), + // so just check for raw_len < img_len always. + if (raw_len < img_len) return stbi__err("not enough pixels","Corrupt PNG"); + + for (j=0; j < y; ++j) { + stbi_uc *cur = a->out + stride*j; + stbi_uc *prior; + int filter = *raw++; + + if (filter > 4) + return stbi__err("invalid filter","Corrupt PNG"); + + if (depth < 8) { + if (img_width_bytes > x) return stbi__err("invalid width","Corrupt PNG"); + cur += x*out_n - img_width_bytes; // store output to the rightmost img_len bytes, so we can decode in place + filter_bytes = 1; + width = img_width_bytes; + } + prior = cur - stride; // bugfix: need to compute this after 'cur +=' computation above + + // if first row, use special filter that doesn't sample previous row + if (j == 0) filter = first_row_filter[filter]; + + // handle first byte explicitly + for (k=0; k < filter_bytes; ++k) { + switch (filter) { + case STBI__F_none : cur[k] = raw[k]; break; + case STBI__F_sub : cur[k] = raw[k]; break; + case STBI__F_up : cur[k] = STBI__BYTECAST(raw[k] + prior[k]); break; + case STBI__F_avg : cur[k] = STBI__BYTECAST(raw[k] + (prior[k]>>1)); break; + case STBI__F_paeth : cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(0,prior[k],0)); break; + case STBI__F_avg_first : cur[k] = raw[k]; break; + case STBI__F_paeth_first: cur[k] = raw[k]; break; + } + } + + if (depth == 8) { + if (img_n != out_n) + cur[img_n] = 255; // first pixel + raw += img_n; + cur += out_n; + prior += out_n; + } else if (depth == 16) { + if (img_n != out_n) { + cur[filter_bytes] = 255; // first pixel top byte + cur[filter_bytes+1] = 255; // first pixel bottom byte + } + raw += filter_bytes; + cur += output_bytes; + prior += output_bytes; + } else { + raw += 1; + cur += 1; + prior += 1; + } + + // this is a little gross, so that we don't switch per-pixel or per-component + if (depth < 8 || img_n == out_n) { + int nk = (width - 1)*filter_bytes; + #define STBI__CASE(f) \ + case f: \ + for (k=0; k < nk; ++k) + switch (filter) { + // "none" filter turns into a memcpy here; make that explicit. + case STBI__F_none: memcpy(cur, raw, nk); break; + STBI__CASE(STBI__F_sub) { cur[k] = STBI__BYTECAST(raw[k] + cur[k-filter_bytes]); } break; + STBI__CASE(STBI__F_up) { cur[k] = STBI__BYTECAST(raw[k] + prior[k]); } break; + STBI__CASE(STBI__F_avg) { cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k-filter_bytes])>>1)); } break; + STBI__CASE(STBI__F_paeth) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-filter_bytes],prior[k],prior[k-filter_bytes])); } break; + STBI__CASE(STBI__F_avg_first) { cur[k] = STBI__BYTECAST(raw[k] + (cur[k-filter_bytes] >> 1)); } break; + STBI__CASE(STBI__F_paeth_first) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-filter_bytes],0,0)); } break; + } + #undef STBI__CASE + raw += nk; + } else { + STBI_ASSERT(img_n+1 == out_n); + #define STBI__CASE(f) \ + case f: \ + for (i=x-1; i >= 1; --i, cur[filter_bytes]=255,raw+=filter_bytes,cur+=output_bytes,prior+=output_bytes) \ + for (k=0; k < filter_bytes; ++k) + switch (filter) { + STBI__CASE(STBI__F_none) { cur[k] = raw[k]; } break; + STBI__CASE(STBI__F_sub) { cur[k] = STBI__BYTECAST(raw[k] + cur[k- output_bytes]); } break; + STBI__CASE(STBI__F_up) { cur[k] = STBI__BYTECAST(raw[k] + prior[k]); } break; + STBI__CASE(STBI__F_avg) { cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k- output_bytes])>>1)); } break; + STBI__CASE(STBI__F_paeth) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k- output_bytes],prior[k],prior[k- output_bytes])); } break; + STBI__CASE(STBI__F_avg_first) { cur[k] = STBI__BYTECAST(raw[k] + (cur[k- output_bytes] >> 1)); } break; + STBI__CASE(STBI__F_paeth_first) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k- output_bytes],0,0)); } break; + } + #undef STBI__CASE + + // the loop above sets the high byte of the pixels' alpha, but for + // 16 bit png files we also need the low byte set. we'll do that here. + if (depth == 16) { + cur = a->out + stride*j; // start at the beginning of the row again + for (i=0; i < x; ++i,cur+=output_bytes) { + cur[filter_bytes+1] = 255; + } + } + } + } + + // we make a separate pass to expand bits to pixels; for performance, + // this could run two scanlines behind the above code, so it won't + // intefere with filtering but will still be in the cache. + if (depth < 8) { + for (j=0; j < y; ++j) { + stbi_uc *cur = a->out + stride*j; + stbi_uc *in = a->out + stride*j + x*out_n - img_width_bytes; + // unpack 1/2/4-bit into a 8-bit buffer. allows us to keep the common 8-bit path optimal at minimal cost for 1/2/4-bit + // png guarante byte alignment, if width is not multiple of 8/4/2 we'll decode dummy trailing data that will be skipped in the later loop + stbi_uc scale = (color == 0) ? stbi__depth_scale_table[depth] : 1; // scale grayscale values to 0..255 range + + // note that the final byte might overshoot and write more data than desired. + // we can allocate enough data that this never writes out of memory, but it + // could also overwrite the next scanline. can it overwrite non-empty data + // on the next scanline? yes, consider 1-pixel-wide scanlines with 1-bit-per-pixel. + // so we need to explicitly clamp the final ones + + if (depth == 4) { + for (k=x*img_n; k >= 2; k-=2, ++in) { + *cur++ = scale * ((*in >> 4) ); + *cur++ = scale * ((*in ) & 0x0f); + } + if (k > 0) *cur++ = scale * ((*in >> 4) ); + } else if (depth == 2) { + for (k=x*img_n; k >= 4; k-=4, ++in) { + *cur++ = scale * ((*in >> 6) ); + *cur++ = scale * ((*in >> 4) & 0x03); + *cur++ = scale * ((*in >> 2) & 0x03); + *cur++ = scale * ((*in ) & 0x03); + } + if (k > 0) *cur++ = scale * ((*in >> 6) ); + if (k > 1) *cur++ = scale * ((*in >> 4) & 0x03); + if (k > 2) *cur++ = scale * ((*in >> 2) & 0x03); + } else if (depth == 1) { + for (k=x*img_n; k >= 8; k-=8, ++in) { + *cur++ = scale * ((*in >> 7) ); + *cur++ = scale * ((*in >> 6) & 0x01); + *cur++ = scale * ((*in >> 5) & 0x01); + *cur++ = scale * ((*in >> 4) & 0x01); + *cur++ = scale * ((*in >> 3) & 0x01); + *cur++ = scale * ((*in >> 2) & 0x01); + *cur++ = scale * ((*in >> 1) & 0x01); + *cur++ = scale * ((*in ) & 0x01); + } + if (k > 0) *cur++ = scale * ((*in >> 7) ); + if (k > 1) *cur++ = scale * ((*in >> 6) & 0x01); + if (k > 2) *cur++ = scale * ((*in >> 5) & 0x01); + if (k > 3) *cur++ = scale * ((*in >> 4) & 0x01); + if (k > 4) *cur++ = scale * ((*in >> 3) & 0x01); + if (k > 5) *cur++ = scale * ((*in >> 2) & 0x01); + if (k > 6) *cur++ = scale * ((*in >> 1) & 0x01); + } + if (img_n != out_n) { + int q; + // insert alpha = 255 + cur = a->out + stride*j; + if (img_n == 1) { + for (q=x-1; q >= 0; --q) { + cur[q*2+1] = 255; + cur[q*2+0] = cur[q]; + } + } else { + STBI_ASSERT(img_n == 3); + for (q=x-1; q >= 0; --q) { + cur[q*4+3] = 255; + cur[q*4+2] = cur[q*3+2]; + cur[q*4+1] = cur[q*3+1]; + cur[q*4+0] = cur[q*3+0]; + } + } + } + } + } else if (depth == 16) { + // force the image data from big-endian to platform-native. + // this is done in a separate pass due to the decoding relying + // on the data being untouched, but could probably be done + // per-line during decode if care is taken. + stbi_uc *cur = a->out; + stbi__uint16 *cur16 = (stbi__uint16*)cur; + + for(i=0; i < x*y*out_n; ++i,cur16++,cur+=2) { + *cur16 = (cur[0] << 8) | cur[1]; + } + } + + return 1; +} + +static int stbi__create_png_image(stbi__png *a, stbi_uc *image_data, stbi__uint32 image_data_len, int out_n, int depth, int color, int interlaced) +{ + int bytes = (depth == 16 ? 2 : 1); + int out_bytes = out_n * bytes; + stbi_uc *final; + int p; + if (!interlaced) + return stbi__create_png_image_raw(a, image_data, image_data_len, out_n, a->s->img_x, a->s->img_y, depth, color); + + // de-interlacing + final = (stbi_uc *) stbi__malloc_mad3(a->s->img_x, a->s->img_y, out_bytes, 0); + for (p=0; p < 7; ++p) { + int xorig[] = { 0,4,0,2,0,1,0 }; + int yorig[] = { 0,0,4,0,2,0,1 }; + int xspc[] = { 8,8,4,4,2,2,1 }; + int yspc[] = { 8,8,8,4,4,2,2 }; + int i,j,x,y; + // pass1_x[4] = 0, pass1_x[5] = 1, pass1_x[12] = 1 + x = (a->s->img_x - xorig[p] + xspc[p]-1) / xspc[p]; + y = (a->s->img_y - yorig[p] + yspc[p]-1) / yspc[p]; + if (x && y) { + stbi__uint32 img_len = ((((a->s->img_n * x * depth) + 7) >> 3) + 1) * y; + if (!stbi__create_png_image_raw(a, image_data, image_data_len, out_n, x, y, depth, color)) { + STBI_FREE(final); + return 0; + } + for (j=0; j < y; ++j) { + for (i=0; i < x; ++i) { + int out_y = j*yspc[p]+yorig[p]; + int out_x = i*xspc[p]+xorig[p]; + memcpy(final + out_y*a->s->img_x*out_bytes + out_x*out_bytes, + a->out + (j*x+i)*out_bytes, out_bytes); + } + } + STBI_FREE(a->out); + image_data += img_len; + image_data_len -= img_len; + } + } + a->out = final; + + return 1; +} + +static int stbi__compute_transparency(stbi__png *z, stbi_uc tc[3], int out_n) +{ + stbi__context *s = z->s; + stbi__uint32 i, pixel_count = s->img_x * s->img_y; + stbi_uc *p = z->out; + + // compute color-based transparency, assuming we've + // already got 255 as the alpha value in the output + STBI_ASSERT(out_n == 2 || out_n == 4); + + if (out_n == 2) { + for (i=0; i < pixel_count; ++i) { + p[1] = (p[0] == tc[0] ? 0 : 255); + p += 2; + } + } else { + for (i=0; i < pixel_count; ++i) { + if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2]) + p[3] = 0; + p += 4; + } + } + return 1; +} + +static int stbi__compute_transparency16(stbi__png *z, stbi__uint16 tc[3], int out_n) +{ + stbi__context *s = z->s; + stbi__uint32 i, pixel_count = s->img_x * s->img_y; + stbi__uint16 *p = (stbi__uint16*) z->out; + + // compute color-based transparency, assuming we've + // already got 65535 as the alpha value in the output + STBI_ASSERT(out_n == 2 || out_n == 4); + + if (out_n == 2) { + for (i = 0; i < pixel_count; ++i) { + p[1] = (p[0] == tc[0] ? 0 : 65535); + p += 2; + } + } else { + for (i = 0; i < pixel_count; ++i) { + if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2]) + p[3] = 0; + p += 4; + } + } + return 1; +} + +static int stbi__expand_png_palette(stbi__png *a, stbi_uc *palette, int len, int pal_img_n) +{ + stbi__uint32 i, pixel_count = a->s->img_x * a->s->img_y; + stbi_uc *p, *temp_out, *orig = a->out; + + p = (stbi_uc *) stbi__malloc_mad2(pixel_count, pal_img_n, 0); + if (p == NULL) return stbi__err("outofmem", "Out of memory"); + + // between here and free(out) below, exitting would leak + temp_out = p; + + if (pal_img_n == 3) { + for (i=0; i < pixel_count; ++i) { + int n = orig[i]*4; + p[0] = palette[n ]; + p[1] = palette[n+1]; + p[2] = palette[n+2]; + p += 3; + } + } else { + for (i=0; i < pixel_count; ++i) { + int n = orig[i]*4; + p[0] = palette[n ]; + p[1] = palette[n+1]; + p[2] = palette[n+2]; + p[3] = palette[n+3]; + p += 4; + } + } + STBI_FREE(a->out); + a->out = temp_out; + + STBI_NOTUSED(len); + + return 1; +} + +static int stbi__unpremultiply_on_load = 0; +static int stbi__de_iphone_flag = 0; + +STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply) +{ + stbi__unpremultiply_on_load = flag_true_if_should_unpremultiply; +} + +STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert) +{ + stbi__de_iphone_flag = flag_true_if_should_convert; +} + +static void stbi__de_iphone(stbi__png *z) +{ + stbi__context *s = z->s; + stbi__uint32 i, pixel_count = s->img_x * s->img_y; + stbi_uc *p = z->out; + + if (s->img_out_n == 3) { // convert bgr to rgb + for (i=0; i < pixel_count; ++i) { + stbi_uc t = p[0]; + p[0] = p[2]; + p[2] = t; + p += 3; + } + } else { + STBI_ASSERT(s->img_out_n == 4); + if (stbi__unpremultiply_on_load) { + // convert bgr to rgb and unpremultiply + for (i=0; i < pixel_count; ++i) { + stbi_uc a = p[3]; + stbi_uc t = p[0]; + if (a) { + stbi_uc half = a / 2; + p[0] = (p[2] * 255 + half) / a; + p[1] = (p[1] * 255 + half) / a; + p[2] = ( t * 255 + half) / a; + } else { + p[0] = p[2]; + p[2] = t; + } + p += 4; + } + } else { + // convert bgr to rgb + for (i=0; i < pixel_count; ++i) { + stbi_uc t = p[0]; + p[0] = p[2]; + p[2] = t; + p += 4; + } + } + } +} + +#define STBI__PNG_TYPE(a,b,c,d) (((unsigned) (a) << 24) + ((unsigned) (b) << 16) + ((unsigned) (c) << 8) + (unsigned) (d)) + +static int stbi__parse_png_file(stbi__png *z, int scan, int req_comp) +{ + stbi_uc palette[1024], pal_img_n=0; + stbi_uc has_trans=0, tc[3]={0}; + stbi__uint16 tc16[3]; + stbi__uint32 ioff=0, idata_limit=0, i, pal_len=0; + int first=1,k,interlace=0, color=0, is_iphone=0; + stbi__context *s = z->s; + + z->expanded = NULL; + z->idata = NULL; + z->out = NULL; + + if (!stbi__check_png_header(s)) return 0; + + if (scan == STBI__SCAN_type) return 1; + + for (;;) { + stbi__pngchunk c = stbi__get_chunk_header(s); + switch (c.type) { + case STBI__PNG_TYPE('C','g','B','I'): + is_iphone = 1; + stbi__skip(s, c.length); + break; + case STBI__PNG_TYPE('I','H','D','R'): { + int comp,filter; + if (!first) return stbi__err("multiple IHDR","Corrupt PNG"); + first = 0; + if (c.length != 13) return stbi__err("bad IHDR len","Corrupt PNG"); + s->img_x = stbi__get32be(s); + s->img_y = stbi__get32be(s); + if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + z->depth = stbi__get8(s); if (z->depth != 1 && z->depth != 2 && z->depth != 4 && z->depth != 8 && z->depth != 16) return stbi__err("1/2/4/8/16-bit only","PNG not supported: 1/2/4/8/16-bit only"); + color = stbi__get8(s); if (color > 6) return stbi__err("bad ctype","Corrupt PNG"); + if (color == 3 && z->depth == 16) return stbi__err("bad ctype","Corrupt PNG"); + if (color == 3) pal_img_n = 3; else if (color & 1) return stbi__err("bad ctype","Corrupt PNG"); + comp = stbi__get8(s); if (comp) return stbi__err("bad comp method","Corrupt PNG"); + filter= stbi__get8(s); if (filter) return stbi__err("bad filter method","Corrupt PNG"); + interlace = stbi__get8(s); if (interlace>1) return stbi__err("bad interlace method","Corrupt PNG"); + if (!s->img_x || !s->img_y) return stbi__err("0-pixel image","Corrupt PNG"); + if (!pal_img_n) { + s->img_n = (color & 2 ? 3 : 1) + (color & 4 ? 1 : 0); + if ((1 << 30) / s->img_x / s->img_n < s->img_y) return stbi__err("too large", "Image too large to decode"); + if (scan == STBI__SCAN_header) return 1; + } else { + // if paletted, then pal_n is our final components, and + // img_n is # components to decompress/filter. + s->img_n = 1; + if ((1 << 30) / s->img_x / 4 < s->img_y) return stbi__err("too large","Corrupt PNG"); + // if SCAN_header, have to scan to see if we have a tRNS + } + break; + } + + case STBI__PNG_TYPE('P','L','T','E'): { + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (c.length > 256*3) return stbi__err("invalid PLTE","Corrupt PNG"); + pal_len = c.length / 3; + if (pal_len * 3 != c.length) return stbi__err("invalid PLTE","Corrupt PNG"); + for (i=0; i < pal_len; ++i) { + palette[i*4+0] = stbi__get8(s); + palette[i*4+1] = stbi__get8(s); + palette[i*4+2] = stbi__get8(s); + palette[i*4+3] = 255; + } + break; + } + + case STBI__PNG_TYPE('t','R','N','S'): { + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (z->idata) return stbi__err("tRNS after IDAT","Corrupt PNG"); + if (pal_img_n) { + if (scan == STBI__SCAN_header) { s->img_n = 4; return 1; } + if (pal_len == 0) return stbi__err("tRNS before PLTE","Corrupt PNG"); + if (c.length > pal_len) return stbi__err("bad tRNS len","Corrupt PNG"); + pal_img_n = 4; + for (i=0; i < c.length; ++i) + palette[i*4+3] = stbi__get8(s); + } else { + if (!(s->img_n & 1)) return stbi__err("tRNS with alpha","Corrupt PNG"); + if (c.length != (stbi__uint32) s->img_n*2) return stbi__err("bad tRNS len","Corrupt PNG"); + has_trans = 1; + if (z->depth == 16) { + for (k = 0; k < s->img_n; ++k) tc16[k] = (stbi__uint16)stbi__get16be(s); // copy the values as-is + } else { + for (k = 0; k < s->img_n; ++k) tc[k] = (stbi_uc)(stbi__get16be(s) & 255) * stbi__depth_scale_table[z->depth]; // non 8-bit images will be larger + } + } + break; + } + + case STBI__PNG_TYPE('I','D','A','T'): { + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (pal_img_n && !pal_len) return stbi__err("no PLTE","Corrupt PNG"); + if (scan == STBI__SCAN_header) { s->img_n = pal_img_n; return 1; } + if ((int)(ioff + c.length) < (int)ioff) return 0; + if (ioff + c.length > idata_limit) { + stbi__uint32 idata_limit_old = idata_limit; + stbi_uc *p; + if (idata_limit == 0) idata_limit = c.length > 4096 ? c.length : 4096; + while (ioff + c.length > idata_limit) + idata_limit *= 2; + STBI_NOTUSED(idata_limit_old); + p = (stbi_uc *) STBI_REALLOC_SIZED(z->idata, idata_limit_old, idata_limit); if (p == NULL) return stbi__err("outofmem", "Out of memory"); + z->idata = p; + } + if (!stbi__getn(s, z->idata+ioff,c.length)) return stbi__err("outofdata","Corrupt PNG"); + ioff += c.length; + break; + } + + case STBI__PNG_TYPE('I','E','N','D'): { + stbi__uint32 raw_len, bpl; + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (scan != STBI__SCAN_load) return 1; + if (z->idata == NULL) return stbi__err("no IDAT","Corrupt PNG"); + // initial guess for decoded data size to avoid unnecessary reallocs + bpl = (s->img_x * z->depth + 7) / 8; // bytes per line, per component + raw_len = bpl * s->img_y * s->img_n /* pixels */ + s->img_y /* filter mode per row */; + z->expanded = (stbi_uc *) stbi_zlib_decode_malloc_guesssize_headerflag((char *) z->idata, ioff, raw_len, (int *) &raw_len, !is_iphone); + if (z->expanded == NULL) return 0; // zlib should set error + STBI_FREE(z->idata); z->idata = NULL; + if ((req_comp == s->img_n+1 && req_comp != 3 && !pal_img_n) || has_trans) + s->img_out_n = s->img_n+1; + else + s->img_out_n = s->img_n; + if (!stbi__create_png_image(z, z->expanded, raw_len, s->img_out_n, z->depth, color, interlace)) return 0; + if (has_trans) { + if (z->depth == 16) { + if (!stbi__compute_transparency16(z, tc16, s->img_out_n)) return 0; + } else { + if (!stbi__compute_transparency(z, tc, s->img_out_n)) return 0; + } + } + if (is_iphone && stbi__de_iphone_flag && s->img_out_n > 2) + stbi__de_iphone(z); + if (pal_img_n) { + // pal_img_n == 3 or 4 + s->img_n = pal_img_n; // record the actual colors we had + s->img_out_n = pal_img_n; + if (req_comp >= 3) s->img_out_n = req_comp; + if (!stbi__expand_png_palette(z, palette, pal_len, s->img_out_n)) + return 0; + } else if (has_trans) { + // non-paletted image with tRNS -> source image has (constant) alpha + ++s->img_n; + } + STBI_FREE(z->expanded); z->expanded = NULL; + // end of PNG chunk, read and skip CRC + stbi__get32be(s); + return 1; + } + + default: + // if critical, fail + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if ((c.type & (1 << 29)) == 0) { + #ifndef STBI_NO_FAILURE_STRINGS + // not threadsafe + static char invalid_chunk[] = "XXXX PNG chunk not known"; + invalid_chunk[0] = STBI__BYTECAST(c.type >> 24); + invalid_chunk[1] = STBI__BYTECAST(c.type >> 16); + invalid_chunk[2] = STBI__BYTECAST(c.type >> 8); + invalid_chunk[3] = STBI__BYTECAST(c.type >> 0); + #endif + return stbi__err(invalid_chunk, "PNG not supported: unknown PNG chunk type"); + } + stbi__skip(s, c.length); + break; + } + // end of PNG chunk, read and skip CRC + stbi__get32be(s); + } +} + +static void *stbi__do_png(stbi__png *p, int *x, int *y, int *n, int req_comp, stbi__result_info *ri) +{ + void *result=NULL; + if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error"); + if (stbi__parse_png_file(p, STBI__SCAN_load, req_comp)) { + if (p->depth <= 8) + ri->bits_per_channel = 8; + else if (p->depth == 16) + ri->bits_per_channel = 16; + else + return stbi__errpuc("bad bits_per_channel", "PNG not supported: unsupported color depth"); + result = p->out; + p->out = NULL; + if (req_comp && req_comp != p->s->img_out_n) { + if (ri->bits_per_channel == 8) + result = stbi__convert_format((unsigned char *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y); + else + result = stbi__convert_format16((stbi__uint16 *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y); + p->s->img_out_n = req_comp; + if (result == NULL) return result; + } + *x = p->s->img_x; + *y = p->s->img_y; + if (n) *n = p->s->img_n; + } + STBI_FREE(p->out); p->out = NULL; + STBI_FREE(p->expanded); p->expanded = NULL; + STBI_FREE(p->idata); p->idata = NULL; + + return result; +} + +static void *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi__png p; + p.s = s; + return stbi__do_png(&p, x,y,comp,req_comp, ri); +} + +static int stbi__png_test(stbi__context *s) +{ + int r; + r = stbi__check_png_header(s); + stbi__rewind(s); + return r; +} + +static int stbi__png_info_raw(stbi__png *p, int *x, int *y, int *comp) +{ + if (!stbi__parse_png_file(p, STBI__SCAN_header, 0)) { + stbi__rewind( p->s ); + return 0; + } + if (x) *x = p->s->img_x; + if (y) *y = p->s->img_y; + if (comp) *comp = p->s->img_n; + return 1; +} + +static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp) +{ + stbi__png p; + p.s = s; + return stbi__png_info_raw(&p, x, y, comp); +} + +static int stbi__png_is16(stbi__context *s) +{ + stbi__png p; + p.s = s; + if (!stbi__png_info_raw(&p, NULL, NULL, NULL)) + return 0; + if (p.depth != 16) { + stbi__rewind(p.s); + return 0; + } + return 1; +} +#endif + +// Microsoft/Windows BMP image + +#ifndef STBI_NO_BMP +static int stbi__bmp_test_raw(stbi__context *s) +{ + int r; + int sz; + if (stbi__get8(s) != 'B') return 0; + if (stbi__get8(s) != 'M') return 0; + stbi__get32le(s); // discard filesize + stbi__get16le(s); // discard reserved + stbi__get16le(s); // discard reserved + stbi__get32le(s); // discard data offset + sz = stbi__get32le(s); + r = (sz == 12 || sz == 40 || sz == 56 || sz == 108 || sz == 124); + return r; +} + +static int stbi__bmp_test(stbi__context *s) +{ + int r = stbi__bmp_test_raw(s); + stbi__rewind(s); + return r; +} + + +// returns 0..31 for the highest set bit +static int stbi__high_bit(unsigned int z) +{ + int n=0; + if (z == 0) return -1; + if (z >= 0x10000) { n += 16; z >>= 16; } + if (z >= 0x00100) { n += 8; z >>= 8; } + if (z >= 0x00010) { n += 4; z >>= 4; } + if (z >= 0x00004) { n += 2; z >>= 2; } + if (z >= 0x00002) { n += 1;/* >>= 1;*/ } + return n; +} + +static int stbi__bitcount(unsigned int a) +{ + a = (a & 0x55555555) + ((a >> 1) & 0x55555555); // max 2 + a = (a & 0x33333333) + ((a >> 2) & 0x33333333); // max 4 + a = (a + (a >> 4)) & 0x0f0f0f0f; // max 8 per 4, now 8 bits + a = (a + (a >> 8)); // max 16 per 8 bits + a = (a + (a >> 16)); // max 32 per 8 bits + return a & 0xff; +} + +// extract an arbitrarily-aligned N-bit value (N=bits) +// from v, and then make it 8-bits long and fractionally +// extend it to full full range. +static int stbi__shiftsigned(unsigned int v, int shift, int bits) +{ + static unsigned int mul_table[9] = { + 0, + 0xff/*0b11111111*/, 0x55/*0b01010101*/, 0x49/*0b01001001*/, 0x11/*0b00010001*/, + 0x21/*0b00100001*/, 0x41/*0b01000001*/, 0x81/*0b10000001*/, 0x01/*0b00000001*/, + }; + static unsigned int shift_table[9] = { + 0, 0,0,1,0,2,4,6,0, + }; + if (shift < 0) + v <<= -shift; + else + v >>= shift; + STBI_ASSERT(v < 256); + v >>= (8-bits); + STBI_ASSERT(bits >= 0 && bits <= 8); + return (int) ((unsigned) v * mul_table[bits]) >> shift_table[bits]; +} + +typedef struct +{ + int bpp, offset, hsz; + unsigned int mr,mg,mb,ma, all_a; + int extra_read; +} stbi__bmp_data; + +static void *stbi__bmp_parse_header(stbi__context *s, stbi__bmp_data *info) +{ + int hsz; + if (stbi__get8(s) != 'B' || stbi__get8(s) != 'M') return stbi__errpuc("not BMP", "Corrupt BMP"); + stbi__get32le(s); // discard filesize + stbi__get16le(s); // discard reserved + stbi__get16le(s); // discard reserved + info->offset = stbi__get32le(s); + info->hsz = hsz = stbi__get32le(s); + info->mr = info->mg = info->mb = info->ma = 0; + info->extra_read = 14; + + if (info->offset < 0) return stbi__errpuc("bad BMP", "bad BMP"); + + if (hsz != 12 && hsz != 40 && hsz != 56 && hsz != 108 && hsz != 124) return stbi__errpuc("unknown BMP", "BMP type not supported: unknown"); + if (hsz == 12) { + s->img_x = stbi__get16le(s); + s->img_y = stbi__get16le(s); + } else { + s->img_x = stbi__get32le(s); + s->img_y = stbi__get32le(s); + } + if (stbi__get16le(s) != 1) return stbi__errpuc("bad BMP", "bad BMP"); + info->bpp = stbi__get16le(s); + if (hsz != 12) { + int compress = stbi__get32le(s); + if (compress == 1 || compress == 2) return stbi__errpuc("BMP RLE", "BMP type not supported: RLE"); + stbi__get32le(s); // discard sizeof + stbi__get32le(s); // discard hres + stbi__get32le(s); // discard vres + stbi__get32le(s); // discard colorsused + stbi__get32le(s); // discard max important + if (hsz == 40 || hsz == 56) { + if (hsz == 56) { + stbi__get32le(s); + stbi__get32le(s); + stbi__get32le(s); + stbi__get32le(s); + } + if (info->bpp == 16 || info->bpp == 32) { + if (compress == 0) { + if (info->bpp == 32) { + info->mr = 0xffu << 16; + info->mg = 0xffu << 8; + info->mb = 0xffu << 0; + info->ma = 0xffu << 24; + info->all_a = 0; // if all_a is 0 at end, then we loaded alpha channel but it was all 0 + } else { + info->mr = 31u << 10; + info->mg = 31u << 5; + info->mb = 31u << 0; + } + } else if (compress == 3) { + info->mr = stbi__get32le(s); + info->mg = stbi__get32le(s); + info->mb = stbi__get32le(s); + info->extra_read += 12; + // not documented, but generated by photoshop and handled by mspaint + if (info->mr == info->mg && info->mg == info->mb) { + // ?!?!? + return stbi__errpuc("bad BMP", "bad BMP"); + } + } else + return stbi__errpuc("bad BMP", "bad BMP"); + } + } else { + int i; + if (hsz != 108 && hsz != 124) + return stbi__errpuc("bad BMP", "bad BMP"); + info->mr = stbi__get32le(s); + info->mg = stbi__get32le(s); + info->mb = stbi__get32le(s); + info->ma = stbi__get32le(s); + stbi__get32le(s); // discard color space + for (i=0; i < 12; ++i) + stbi__get32le(s); // discard color space parameters + if (hsz == 124) { + stbi__get32le(s); // discard rendering intent + stbi__get32le(s); // discard offset of profile data + stbi__get32le(s); // discard size of profile data + stbi__get32le(s); // discard reserved + } + } + } + return (void *) 1; +} + + +static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi_uc *out; + unsigned int mr=0,mg=0,mb=0,ma=0, all_a; + stbi_uc pal[256][4]; + int psize=0,i,j,width; + int flip_vertically, pad, target; + stbi__bmp_data info; + STBI_NOTUSED(ri); + + info.all_a = 255; + if (stbi__bmp_parse_header(s, &info) == NULL) + return NULL; // error code already set + + flip_vertically = ((int) s->img_y) > 0; + s->img_y = abs((int) s->img_y); + + if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + + mr = info.mr; + mg = info.mg; + mb = info.mb; + ma = info.ma; + all_a = info.all_a; + + if (info.hsz == 12) { + if (info.bpp < 24) + psize = (info.offset - info.extra_read - 24) / 3; + } else { + if (info.bpp < 16) + psize = (info.offset - info.extra_read - info.hsz) >> 2; + } + if (psize == 0) { + STBI_ASSERT(info.offset == s->callback_already_read + (int) (s->img_buffer - s->img_buffer_original)); + if (info.offset != s->callback_already_read + (s->img_buffer - s->buffer_start)) { + return stbi__errpuc("bad offset", "Corrupt BMP"); + } + } + + if (info.bpp == 24 && ma == 0xff000000) + s->img_n = 3; + else + s->img_n = ma ? 4 : 3; + if (req_comp && req_comp >= 3) // we can directly decode 3 or 4 + target = req_comp; + else + target = s->img_n; // if they want monochrome, we'll post-convert + + // sanity-check size + if (!stbi__mad3sizes_valid(target, s->img_x, s->img_y, 0)) + return stbi__errpuc("too large", "Corrupt BMP"); + + out = (stbi_uc *) stbi__malloc_mad3(target, s->img_x, s->img_y, 0); + if (!out) return stbi__errpuc("outofmem", "Out of memory"); + if (info.bpp < 16) { + int z=0; + if (psize == 0 || psize > 256) { STBI_FREE(out); return stbi__errpuc("invalid", "Corrupt BMP"); } + for (i=0; i < psize; ++i) { + pal[i][2] = stbi__get8(s); + pal[i][1] = stbi__get8(s); + pal[i][0] = stbi__get8(s); + if (info.hsz != 12) stbi__get8(s); + pal[i][3] = 255; + } + stbi__skip(s, info.offset - info.extra_read - info.hsz - psize * (info.hsz == 12 ? 3 : 4)); + if (info.bpp == 1) width = (s->img_x + 7) >> 3; + else if (info.bpp == 4) width = (s->img_x + 1) >> 1; + else if (info.bpp == 8) width = s->img_x; + else { STBI_FREE(out); return stbi__errpuc("bad bpp", "Corrupt BMP"); } + pad = (-width)&3; + if (info.bpp == 1) { + for (j=0; j < (int) s->img_y; ++j) { + int bit_offset = 7, v = stbi__get8(s); + for (i=0; i < (int) s->img_x; ++i) { + int color = (v>>bit_offset)&0x1; + out[z++] = pal[color][0]; + out[z++] = pal[color][1]; + out[z++] = pal[color][2]; + if (target == 4) out[z++] = 255; + if (i+1 == (int) s->img_x) break; + if((--bit_offset) < 0) { + bit_offset = 7; + v = stbi__get8(s); + } + } + stbi__skip(s, pad); + } + } else { + for (j=0; j < (int) s->img_y; ++j) { + for (i=0; i < (int) s->img_x; i += 2) { + int v=stbi__get8(s),v2=0; + if (info.bpp == 4) { + v2 = v & 15; + v >>= 4; + } + out[z++] = pal[v][0]; + out[z++] = pal[v][1]; + out[z++] = pal[v][2]; + if (target == 4) out[z++] = 255; + if (i+1 == (int) s->img_x) break; + v = (info.bpp == 8) ? stbi__get8(s) : v2; + out[z++] = pal[v][0]; + out[z++] = pal[v][1]; + out[z++] = pal[v][2]; + if (target == 4) out[z++] = 255; + } + stbi__skip(s, pad); + } + } + } else { + int rshift=0,gshift=0,bshift=0,ashift=0,rcount=0,gcount=0,bcount=0,acount=0; + int z = 0; + int easy=0; + stbi__skip(s, info.offset - info.extra_read - info.hsz); + if (info.bpp == 24) width = 3 * s->img_x; + else if (info.bpp == 16) width = 2*s->img_x; + else /* bpp = 32 and pad = 0 */ width=0; + pad = (-width) & 3; + if (info.bpp == 24) { + easy = 1; + } else if (info.bpp == 32) { + if (mb == 0xff && mg == 0xff00 && mr == 0x00ff0000 && ma == 0xff000000) + easy = 2; + } + if (!easy) { + if (!mr || !mg || !mb) { STBI_FREE(out); return stbi__errpuc("bad masks", "Corrupt BMP"); } + // right shift amt to put high bit in position #7 + rshift = stbi__high_bit(mr)-7; rcount = stbi__bitcount(mr); + gshift = stbi__high_bit(mg)-7; gcount = stbi__bitcount(mg); + bshift = stbi__high_bit(mb)-7; bcount = stbi__bitcount(mb); + ashift = stbi__high_bit(ma)-7; acount = stbi__bitcount(ma); + if (rcount > 8 || gcount > 8 || bcount > 8 || acount > 8) { STBI_FREE(out); return stbi__errpuc("bad masks", "Corrupt BMP"); } + } + for (j=0; j < (int) s->img_y; ++j) { + if (easy) { + for (i=0; i < (int) s->img_x; ++i) { + unsigned char a; + out[z+2] = stbi__get8(s); + out[z+1] = stbi__get8(s); + out[z+0] = stbi__get8(s); + z += 3; + a = (easy == 2 ? stbi__get8(s) : 255); + all_a |= a; + if (target == 4) out[z++] = a; + } + } else { + int bpp = info.bpp; + for (i=0; i < (int) s->img_x; ++i) { + stbi__uint32 v = (bpp == 16 ? (stbi__uint32) stbi__get16le(s) : stbi__get32le(s)); + unsigned int a; + out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mr, rshift, rcount)); + out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mg, gshift, gcount)); + out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mb, bshift, bcount)); + a = (ma ? stbi__shiftsigned(v & ma, ashift, acount) : 255); + all_a |= a; + if (target == 4) out[z++] = STBI__BYTECAST(a); + } + } + stbi__skip(s, pad); + } + } + + // if alpha channel is all 0s, replace with all 255s + if (target == 4 && all_a == 0) + for (i=4*s->img_x*s->img_y-1; i >= 0; i -= 4) + out[i] = 255; + + if (flip_vertically) { + stbi_uc t; + for (j=0; j < (int) s->img_y>>1; ++j) { + stbi_uc *p1 = out + j *s->img_x*target; + stbi_uc *p2 = out + (s->img_y-1-j)*s->img_x*target; + for (i=0; i < (int) s->img_x*target; ++i) { + t = p1[i]; p1[i] = p2[i]; p2[i] = t; + } + } + } + + if (req_comp && req_comp != target) { + out = stbi__convert_format(out, target, req_comp, s->img_x, s->img_y); + if (out == NULL) return out; // stbi__convert_format frees input on failure + } + + *x = s->img_x; + *y = s->img_y; + if (comp) *comp = s->img_n; + return out; +} +#endif + +// Targa Truevision - TGA +// by Jonathan Dummer +#ifndef STBI_NO_TGA +// returns STBI_rgb or whatever, 0 on error +static int stbi__tga_get_comp(int bits_per_pixel, int is_grey, int* is_rgb16) +{ + // only RGB or RGBA (incl. 16bit) or grey allowed + if (is_rgb16) *is_rgb16 = 0; + switch(bits_per_pixel) { + case 8: return STBI_grey; + case 16: if(is_grey) return STBI_grey_alpha; + // fallthrough + case 15: if(is_rgb16) *is_rgb16 = 1; + return STBI_rgb; + case 24: // fallthrough + case 32: return bits_per_pixel/8; + default: return 0; + } +} + +static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp) +{ + int tga_w, tga_h, tga_comp, tga_image_type, tga_bits_per_pixel, tga_colormap_bpp; + int sz, tga_colormap_type; + stbi__get8(s); // discard Offset + tga_colormap_type = stbi__get8(s); // colormap type + if( tga_colormap_type > 1 ) { + stbi__rewind(s); + return 0; // only RGB or indexed allowed + } + tga_image_type = stbi__get8(s); // image type + if ( tga_colormap_type == 1 ) { // colormapped (paletted) image + if (tga_image_type != 1 && tga_image_type != 9) { + stbi__rewind(s); + return 0; + } + stbi__skip(s,4); // skip index of first colormap entry and number of entries + sz = stbi__get8(s); // check bits per palette color entry + if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) { + stbi__rewind(s); + return 0; + } + stbi__skip(s,4); // skip image x and y origin + tga_colormap_bpp = sz; + } else { // "normal" image w/o colormap - only RGB or grey allowed, +/- RLE + if ( (tga_image_type != 2) && (tga_image_type != 3) && (tga_image_type != 10) && (tga_image_type != 11) ) { + stbi__rewind(s); + return 0; // only RGB or grey allowed, +/- RLE + } + stbi__skip(s,9); // skip colormap specification and image x/y origin + tga_colormap_bpp = 0; + } + tga_w = stbi__get16le(s); + if( tga_w < 1 ) { + stbi__rewind(s); + return 0; // test width + } + tga_h = stbi__get16le(s); + if( tga_h < 1 ) { + stbi__rewind(s); + return 0; // test height + } + tga_bits_per_pixel = stbi__get8(s); // bits per pixel + stbi__get8(s); // ignore alpha bits + if (tga_colormap_bpp != 0) { + if((tga_bits_per_pixel != 8) && (tga_bits_per_pixel != 16)) { + // when using a colormap, tga_bits_per_pixel is the size of the indexes + // I don't think anything but 8 or 16bit indexes makes sense + stbi__rewind(s); + return 0; + } + tga_comp = stbi__tga_get_comp(tga_colormap_bpp, 0, NULL); + } else { + tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3) || (tga_image_type == 11), NULL); + } + if(!tga_comp) { + stbi__rewind(s); + return 0; + } + if (x) *x = tga_w; + if (y) *y = tga_h; + if (comp) *comp = tga_comp; + return 1; // seems to have passed everything +} + +static int stbi__tga_test(stbi__context *s) +{ + int res = 0; + int sz, tga_color_type; + stbi__get8(s); // discard Offset + tga_color_type = stbi__get8(s); // color type + if ( tga_color_type > 1 ) goto errorEnd; // only RGB or indexed allowed + sz = stbi__get8(s); // image type + if ( tga_color_type == 1 ) { // colormapped (paletted) image + if (sz != 1 && sz != 9) goto errorEnd; // colortype 1 demands image type 1 or 9 + stbi__skip(s,4); // skip index of first colormap entry and number of entries + sz = stbi__get8(s); // check bits per palette color entry + if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd; + stbi__skip(s,4); // skip image x and y origin + } else { // "normal" image w/o colormap + if ( (sz != 2) && (sz != 3) && (sz != 10) && (sz != 11) ) goto errorEnd; // only RGB or grey allowed, +/- RLE + stbi__skip(s,9); // skip colormap specification and image x/y origin + } + if ( stbi__get16le(s) < 1 ) goto errorEnd; // test width + if ( stbi__get16le(s) < 1 ) goto errorEnd; // test height + sz = stbi__get8(s); // bits per pixel + if ( (tga_color_type == 1) && (sz != 8) && (sz != 16) ) goto errorEnd; // for colormapped images, bpp is size of an index + if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd; + + res = 1; // if we got this far, everything's good and we can return 1 instead of 0 + +errorEnd: + stbi__rewind(s); + return res; +} + +// read 16bit value and convert to 24bit RGB +static void stbi__tga_read_rgb16(stbi__context *s, stbi_uc* out) +{ + stbi__uint16 px = (stbi__uint16)stbi__get16le(s); + stbi__uint16 fiveBitMask = 31; + // we have 3 channels with 5bits each + int r = (px >> 10) & fiveBitMask; + int g = (px >> 5) & fiveBitMask; + int b = px & fiveBitMask; + // Note that this saves the data in RGB(A) order, so it doesn't need to be swapped later + out[0] = (stbi_uc)((r * 255)/31); + out[1] = (stbi_uc)((g * 255)/31); + out[2] = (stbi_uc)((b * 255)/31); + + // some people claim that the most significant bit might be used for alpha + // (possibly if an alpha-bit is set in the "image descriptor byte") + // but that only made 16bit test images completely translucent.. + // so let's treat all 15 and 16bit TGAs as RGB with no alpha. +} + +static void *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + // read in the TGA header stuff + int tga_offset = stbi__get8(s); + int tga_indexed = stbi__get8(s); + int tga_image_type = stbi__get8(s); + int tga_is_RLE = 0; + int tga_palette_start = stbi__get16le(s); + int tga_palette_len = stbi__get16le(s); + int tga_palette_bits = stbi__get8(s); + int tga_x_origin = stbi__get16le(s); + int tga_y_origin = stbi__get16le(s); + int tga_width = stbi__get16le(s); + int tga_height = stbi__get16le(s); + int tga_bits_per_pixel = stbi__get8(s); + int tga_comp, tga_rgb16=0; + int tga_inverted = stbi__get8(s); + // int tga_alpha_bits = tga_inverted & 15; // the 4 lowest bits - unused (useless?) + // image data + unsigned char *tga_data; + unsigned char *tga_palette = NULL; + int i, j; + unsigned char raw_data[4] = {0}; + int RLE_count = 0; + int RLE_repeating = 0; + int read_next_pixel = 1; + STBI_NOTUSED(ri); + STBI_NOTUSED(tga_x_origin); // @TODO + STBI_NOTUSED(tga_y_origin); // @TODO + + if (tga_height > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (tga_width > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + + // do a tiny bit of precessing + if ( tga_image_type >= 8 ) + { + tga_image_type -= 8; + tga_is_RLE = 1; + } + tga_inverted = 1 - ((tga_inverted >> 5) & 1); + + // If I'm paletted, then I'll use the number of bits from the palette + if ( tga_indexed ) tga_comp = stbi__tga_get_comp(tga_palette_bits, 0, &tga_rgb16); + else tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3), &tga_rgb16); + + if(!tga_comp) // shouldn't really happen, stbi__tga_test() should have ensured basic consistency + return stbi__errpuc("bad format", "Can't find out TGA pixelformat"); + + // tga info + *x = tga_width; + *y = tga_height; + if (comp) *comp = tga_comp; + + if (!stbi__mad3sizes_valid(tga_width, tga_height, tga_comp, 0)) + return stbi__errpuc("too large", "Corrupt TGA"); + + tga_data = (unsigned char*)stbi__malloc_mad3(tga_width, tga_height, tga_comp, 0); + if (!tga_data) return stbi__errpuc("outofmem", "Out of memory"); + + // skip to the data's starting position (offset usually = 0) + stbi__skip(s, tga_offset ); + + if ( !tga_indexed && !tga_is_RLE && !tga_rgb16 ) { + for (i=0; i < tga_height; ++i) { + int row = tga_inverted ? tga_height -i - 1 : i; + stbi_uc *tga_row = tga_data + row*tga_width*tga_comp; + stbi__getn(s, tga_row, tga_width * tga_comp); + } + } else { + // do I need to load a palette? + if ( tga_indexed) + { + if (tga_palette_len == 0) { /* you have to have at least one entry! */ + STBI_FREE(tga_data); + return stbi__errpuc("bad palette", "Corrupt TGA"); + } + + // any data to skip? (offset usually = 0) + stbi__skip(s, tga_palette_start ); + // load the palette + tga_palette = (unsigned char*)stbi__malloc_mad2(tga_palette_len, tga_comp, 0); + if (!tga_palette) { + STBI_FREE(tga_data); + return stbi__errpuc("outofmem", "Out of memory"); + } + if (tga_rgb16) { + stbi_uc *pal_entry = tga_palette; + STBI_ASSERT(tga_comp == STBI_rgb); + for (i=0; i < tga_palette_len; ++i) { + stbi__tga_read_rgb16(s, pal_entry); + pal_entry += tga_comp; + } + } else if (!stbi__getn(s, tga_palette, tga_palette_len * tga_comp)) { + STBI_FREE(tga_data); + STBI_FREE(tga_palette); + return stbi__errpuc("bad palette", "Corrupt TGA"); + } + } + // load the data + for (i=0; i < tga_width * tga_height; ++i) + { + // if I'm in RLE mode, do I need to get a RLE stbi__pngchunk? + if ( tga_is_RLE ) + { + if ( RLE_count == 0 ) + { + // yep, get the next byte as a RLE command + int RLE_cmd = stbi__get8(s); + RLE_count = 1 + (RLE_cmd & 127); + RLE_repeating = RLE_cmd >> 7; + read_next_pixel = 1; + } else if ( !RLE_repeating ) + { + read_next_pixel = 1; + } + } else + { + read_next_pixel = 1; + } + // OK, if I need to read a pixel, do it now + if ( read_next_pixel ) + { + // load however much data we did have + if ( tga_indexed ) + { + // read in index, then perform the lookup + int pal_idx = (tga_bits_per_pixel == 8) ? stbi__get8(s) : stbi__get16le(s); + if ( pal_idx >= tga_palette_len ) { + // invalid index + pal_idx = 0; + } + pal_idx *= tga_comp; + for (j = 0; j < tga_comp; ++j) { + raw_data[j] = tga_palette[pal_idx+j]; + } + } else if(tga_rgb16) { + STBI_ASSERT(tga_comp == STBI_rgb); + stbi__tga_read_rgb16(s, raw_data); + } else { + // read in the data raw + for (j = 0; j < tga_comp; ++j) { + raw_data[j] = stbi__get8(s); + } + } + // clear the reading flag for the next pixel + read_next_pixel = 0; + } // end of reading a pixel + + // copy data + for (j = 0; j < tga_comp; ++j) + tga_data[i*tga_comp+j] = raw_data[j]; + + // in case we're in RLE mode, keep counting down + --RLE_count; + } + // do I need to invert the image? + if ( tga_inverted ) + { + for (j = 0; j*2 < tga_height; ++j) + { + int index1 = j * tga_width * tga_comp; + int index2 = (tga_height - 1 - j) * tga_width * tga_comp; + for (i = tga_width * tga_comp; i > 0; --i) + { + unsigned char temp = tga_data[index1]; + tga_data[index1] = tga_data[index2]; + tga_data[index2] = temp; + ++index1; + ++index2; + } + } + } + // clear my palette, if I had one + if ( tga_palette != NULL ) + { + STBI_FREE( tga_palette ); + } + } + + // swap RGB - if the source data was RGB16, it already is in the right order + if (tga_comp >= 3 && !tga_rgb16) + { + unsigned char* tga_pixel = tga_data; + for (i=0; i < tga_width * tga_height; ++i) + { + unsigned char temp = tga_pixel[0]; + tga_pixel[0] = tga_pixel[2]; + tga_pixel[2] = temp; + tga_pixel += tga_comp; + } + } + + // convert to target component count + if (req_comp && req_comp != tga_comp) + tga_data = stbi__convert_format(tga_data, tga_comp, req_comp, tga_width, tga_height); + + // the things I do to get rid of an error message, and yet keep + // Microsoft's C compilers happy... [8^( + tga_palette_start = tga_palette_len = tga_palette_bits = + tga_x_origin = tga_y_origin = 0; + STBI_NOTUSED(tga_palette_start); + // OK, done + return tga_data; +} +#endif + +// ************************************************************************************************* +// Photoshop PSD loader -- PD by Thatcher Ulrich, integration by Nicolas Schulz, tweaked by STB + +#ifndef STBI_NO_PSD +static int stbi__psd_test(stbi__context *s) +{ + int r = (stbi__get32be(s) == 0x38425053); + stbi__rewind(s); + return r; +} + +static int stbi__psd_decode_rle(stbi__context *s, stbi_uc *p, int pixelCount) +{ + int count, nleft, len; + + count = 0; + while ((nleft = pixelCount - count) > 0) { + len = stbi__get8(s); + if (len == 128) { + // No-op. + } else if (len < 128) { + // Copy next len+1 bytes literally. + len++; + if (len > nleft) return 0; // corrupt data + count += len; + while (len) { + *p = stbi__get8(s); + p += 4; + len--; + } + } else if (len > 128) { + stbi_uc val; + // Next -len+1 bytes in the dest are replicated from next source byte. + // (Interpret len as a negative 8-bit int.) + len = 257 - len; + if (len > nleft) return 0; // corrupt data + val = stbi__get8(s); + count += len; + while (len) { + *p = val; + p += 4; + len--; + } + } + } + + return 1; +} + +static void *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc) +{ + int pixelCount; + int channelCount, compression; + int channel, i; + int bitdepth; + int w,h; + stbi_uc *out; + STBI_NOTUSED(ri); + + // Check identifier + if (stbi__get32be(s) != 0x38425053) // "8BPS" + return stbi__errpuc("not PSD", "Corrupt PSD image"); + + // Check file type version. + if (stbi__get16be(s) != 1) + return stbi__errpuc("wrong version", "Unsupported version of PSD image"); + + // Skip 6 reserved bytes. + stbi__skip(s, 6 ); + + // Read the number of channels (R, G, B, A, etc). + channelCount = stbi__get16be(s); + if (channelCount < 0 || channelCount > 16) + return stbi__errpuc("wrong channel count", "Unsupported number of channels in PSD image"); + + // Read the rows and columns of the image. + h = stbi__get32be(s); + w = stbi__get32be(s); + + if (h > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (w > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + + // Make sure the depth is 8 bits. + bitdepth = stbi__get16be(s); + if (bitdepth != 8 && bitdepth != 16) + return stbi__errpuc("unsupported bit depth", "PSD bit depth is not 8 or 16 bit"); + + // Make sure the color mode is RGB. + // Valid options are: + // 0: Bitmap + // 1: Grayscale + // 2: Indexed color + // 3: RGB color + // 4: CMYK color + // 7: Multichannel + // 8: Duotone + // 9: Lab color + if (stbi__get16be(s) != 3) + return stbi__errpuc("wrong color format", "PSD is not in RGB color format"); + + // Skip the Mode Data. (It's the palette for indexed color; other info for other modes.) + stbi__skip(s,stbi__get32be(s) ); + + // Skip the image resources. (resolution, pen tool paths, etc) + stbi__skip(s, stbi__get32be(s) ); + + // Skip the reserved data. + stbi__skip(s, stbi__get32be(s) ); + + // Find out if the data is compressed. + // Known values: + // 0: no compression + // 1: RLE compressed + compression = stbi__get16be(s); + if (compression > 1) + return stbi__errpuc("bad compression", "PSD has an unknown compression format"); + + // Check size + if (!stbi__mad3sizes_valid(4, w, h, 0)) + return stbi__errpuc("too large", "Corrupt PSD"); + + // Create the destination image. + + if (!compression && bitdepth == 16 && bpc == 16) { + out = (stbi_uc *) stbi__malloc_mad3(8, w, h, 0); + ri->bits_per_channel = 16; + } else + out = (stbi_uc *) stbi__malloc(4 * w*h); + + if (!out) return stbi__errpuc("outofmem", "Out of memory"); + pixelCount = w*h; + + // Initialize the data to zero. + //memset( out, 0, pixelCount * 4 ); + + // Finally, the image data. + if (compression) { + // RLE as used by .PSD and .TIFF + // Loop until you get the number of unpacked bytes you are expecting: + // Read the next source byte into n. + // If n is between 0 and 127 inclusive, copy the next n+1 bytes literally. + // Else if n is between -127 and -1 inclusive, copy the next byte -n+1 times. + // Else if n is 128, noop. + // Endloop + + // The RLE-compressed data is preceded by a 2-byte data count for each row in the data, + // which we're going to just skip. + stbi__skip(s, h * channelCount * 2 ); + + // Read the RLE data by channel. + for (channel = 0; channel < 4; channel++) { + stbi_uc *p; + + p = out+channel; + if (channel >= channelCount) { + // Fill this channel with default data. + for (i = 0; i < pixelCount; i++, p += 4) + *p = (channel == 3 ? 255 : 0); + } else { + // Read the RLE data. + if (!stbi__psd_decode_rle(s, p, pixelCount)) { + STBI_FREE(out); + return stbi__errpuc("corrupt", "bad RLE data"); + } + } + } + + } else { + // We're at the raw image data. It's each channel in order (Red, Green, Blue, Alpha, ...) + // where each channel consists of an 8-bit (or 16-bit) value for each pixel in the image. + + // Read the data by channel. + for (channel = 0; channel < 4; channel++) { + if (channel >= channelCount) { + // Fill this channel with default data. + if (bitdepth == 16 && bpc == 16) { + stbi__uint16 *q = ((stbi__uint16 *) out) + channel; + stbi__uint16 val = channel == 3 ? 65535 : 0; + for (i = 0; i < pixelCount; i++, q += 4) + *q = val; + } else { + stbi_uc *p = out+channel; + stbi_uc val = channel == 3 ? 255 : 0; + for (i = 0; i < pixelCount; i++, p += 4) + *p = val; + } + } else { + if (ri->bits_per_channel == 16) { // output bpc + stbi__uint16 *q = ((stbi__uint16 *) out) + channel; + for (i = 0; i < pixelCount; i++, q += 4) + *q = (stbi__uint16) stbi__get16be(s); + } else { + stbi_uc *p = out+channel; + if (bitdepth == 16) { // input bpc + for (i = 0; i < pixelCount; i++, p += 4) + *p = (stbi_uc) (stbi__get16be(s) >> 8); + } else { + for (i = 0; i < pixelCount; i++, p += 4) + *p = stbi__get8(s); + } + } + } + } + } + + // remove weird white matte from PSD + if (channelCount >= 4) { + if (ri->bits_per_channel == 16) { + for (i=0; i < w*h; ++i) { + stbi__uint16 *pixel = (stbi__uint16 *) out + 4*i; + if (pixel[3] != 0 && pixel[3] != 65535) { + float a = pixel[3] / 65535.0f; + float ra = 1.0f / a; + float inv_a = 65535.0f * (1 - ra); + pixel[0] = (stbi__uint16) (pixel[0]*ra + inv_a); + pixel[1] = (stbi__uint16) (pixel[1]*ra + inv_a); + pixel[2] = (stbi__uint16) (pixel[2]*ra + inv_a); + } + } + } else { + for (i=0; i < w*h; ++i) { + unsigned char *pixel = out + 4*i; + if (pixel[3] != 0 && pixel[3] != 255) { + float a = pixel[3] / 255.0f; + float ra = 1.0f / a; + float inv_a = 255.0f * (1 - ra); + pixel[0] = (unsigned char) (pixel[0]*ra + inv_a); + pixel[1] = (unsigned char) (pixel[1]*ra + inv_a); + pixel[2] = (unsigned char) (pixel[2]*ra + inv_a); + } + } + } + } + + // convert to desired output format + if (req_comp && req_comp != 4) { + if (ri->bits_per_channel == 16) + out = (stbi_uc *) stbi__convert_format16((stbi__uint16 *) out, 4, req_comp, w, h); + else + out = stbi__convert_format(out, 4, req_comp, w, h); + if (out == NULL) return out; // stbi__convert_format frees input on failure + } + + if (comp) *comp = 4; + *y = h; + *x = w; + + return out; +} +#endif + +// ************************************************************************************************* +// Softimage PIC loader +// by Tom Seddon +// +// See http://softimage.wiki.softimage.com/index.php/INFO:_PIC_file_format +// See http://ozviz.wasp.uwa.edu.au/~pbourke/dataformats/softimagepic/ + +#ifndef STBI_NO_PIC +static int stbi__pic_is4(stbi__context *s,const char *str) +{ + int i; + for (i=0; i<4; ++i) + if (stbi__get8(s) != (stbi_uc)str[i]) + return 0; + + return 1; +} + +static int stbi__pic_test_core(stbi__context *s) +{ + int i; + + if (!stbi__pic_is4(s,"\x53\x80\xF6\x34")) + return 0; + + for(i=0;i<84;++i) + stbi__get8(s); + + if (!stbi__pic_is4(s,"PICT")) + return 0; + + return 1; +} + +typedef struct +{ + stbi_uc size,type,channel; +} stbi__pic_packet; + +static stbi_uc *stbi__readval(stbi__context *s, int channel, stbi_uc *dest) +{ + int mask=0x80, i; + + for (i=0; i<4; ++i, mask>>=1) { + if (channel & mask) { + if (stbi__at_eof(s)) return stbi__errpuc("bad file","PIC file too short"); + dest[i]=stbi__get8(s); + } + } + + return dest; +} + +static void stbi__copyval(int channel,stbi_uc *dest,const stbi_uc *src) +{ + int mask=0x80,i; + + for (i=0;i<4; ++i, mask>>=1) + if (channel&mask) + dest[i]=src[i]; +} + +static stbi_uc *stbi__pic_load_core(stbi__context *s,int width,int height,int *comp, stbi_uc *result) +{ + int act_comp=0,num_packets=0,y,chained; + stbi__pic_packet packets[10]; + + // this will (should...) cater for even some bizarre stuff like having data + // for the same channel in multiple packets. + do { + stbi__pic_packet *packet; + + if (num_packets==sizeof(packets)/sizeof(packets[0])) + return stbi__errpuc("bad format","too many packets"); + + packet = &packets[num_packets++]; + + chained = stbi__get8(s); + packet->size = stbi__get8(s); + packet->type = stbi__get8(s); + packet->channel = stbi__get8(s); + + act_comp |= packet->channel; + + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (reading packets)"); + if (packet->size != 8) return stbi__errpuc("bad format","packet isn't 8bpp"); + } while (chained); + + *comp = (act_comp & 0x10 ? 4 : 3); // has alpha channel? + + for(y=0; ytype) { + default: + return stbi__errpuc("bad format","packet has bad compression type"); + + case 0: {//uncompressed + int x; + + for(x=0;xchannel,dest)) + return 0; + break; + } + + case 1://Pure RLE + { + int left=width, i; + + while (left>0) { + stbi_uc count,value[4]; + + count=stbi__get8(s); + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pure read count)"); + + if (count > left) + count = (stbi_uc) left; + + if (!stbi__readval(s,packet->channel,value)) return 0; + + for(i=0; ichannel,dest,value); + left -= count; + } + } + break; + + case 2: {//Mixed RLE + int left=width; + while (left>0) { + int count = stbi__get8(s), i; + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (mixed read count)"); + + if (count >= 128) { // Repeated + stbi_uc value[4]; + + if (count==128) + count = stbi__get16be(s); + else + count -= 127; + if (count > left) + return stbi__errpuc("bad file","scanline overrun"); + + if (!stbi__readval(s,packet->channel,value)) + return 0; + + for(i=0;ichannel,dest,value); + } else { // Raw + ++count; + if (count>left) return stbi__errpuc("bad file","scanline overrun"); + + for(i=0;ichannel,dest)) + return 0; + } + left-=count; + } + break; + } + } + } + } + + return result; +} + +static void *stbi__pic_load(stbi__context *s,int *px,int *py,int *comp,int req_comp, stbi__result_info *ri) +{ + stbi_uc *result; + int i, x,y, internal_comp; + STBI_NOTUSED(ri); + + if (!comp) comp = &internal_comp; + + for (i=0; i<92; ++i) + stbi__get8(s); + + x = stbi__get16be(s); + y = stbi__get16be(s); + + if (y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pic header)"); + if (!stbi__mad3sizes_valid(x, y, 4, 0)) return stbi__errpuc("too large", "PIC image too large to decode"); + + stbi__get32be(s); //skip `ratio' + stbi__get16be(s); //skip `fields' + stbi__get16be(s); //skip `pad' + + // intermediate buffer is RGBA + result = (stbi_uc *) stbi__malloc_mad3(x, y, 4, 0); + memset(result, 0xff, x*y*4); + + if (!stbi__pic_load_core(s,x,y,comp, result)) { + STBI_FREE(result); + result=0; + } + *px = x; + *py = y; + if (req_comp == 0) req_comp = *comp; + result=stbi__convert_format(result,4,req_comp,x,y); + + return result; +} + +static int stbi__pic_test(stbi__context *s) +{ + int r = stbi__pic_test_core(s); + stbi__rewind(s); + return r; +} +#endif + +// ************************************************************************************************* +// GIF loader -- public domain by Jean-Marc Lienher -- simplified/shrunk by stb + +#ifndef STBI_NO_GIF +typedef struct +{ + stbi__int16 prefix; + stbi_uc first; + stbi_uc suffix; +} stbi__gif_lzw; + +typedef struct +{ + int w,h; + stbi_uc *out; // output buffer (always 4 components) + stbi_uc *background; // The current "background" as far as a gif is concerned + stbi_uc *history; + int flags, bgindex, ratio, transparent, eflags; + stbi_uc pal[256][4]; + stbi_uc lpal[256][4]; + stbi__gif_lzw codes[8192]; + stbi_uc *color_table; + int parse, step; + int lflags; + int start_x, start_y; + int max_x, max_y; + int cur_x, cur_y; + int line_size; + int delay; +} stbi__gif; + +static int stbi__gif_test_raw(stbi__context *s) +{ + int sz; + if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') return 0; + sz = stbi__get8(s); + if (sz != '9' && sz != '7') return 0; + if (stbi__get8(s) != 'a') return 0; + return 1; +} + +static int stbi__gif_test(stbi__context *s) +{ + int r = stbi__gif_test_raw(s); + stbi__rewind(s); + return r; +} + +static void stbi__gif_parse_colortable(stbi__context *s, stbi_uc pal[256][4], int num_entries, int transp) +{ + int i; + for (i=0; i < num_entries; ++i) { + pal[i][2] = stbi__get8(s); + pal[i][1] = stbi__get8(s); + pal[i][0] = stbi__get8(s); + pal[i][3] = transp == i ? 0 : 255; + } +} + +static int stbi__gif_header(stbi__context *s, stbi__gif *g, int *comp, int is_info) +{ + stbi_uc version; + if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') + return stbi__err("not GIF", "Corrupt GIF"); + + version = stbi__get8(s); + if (version != '7' && version != '9') return stbi__err("not GIF", "Corrupt GIF"); + if (stbi__get8(s) != 'a') return stbi__err("not GIF", "Corrupt GIF"); + + stbi__g_failure_reason = ""; + g->w = stbi__get16le(s); + g->h = stbi__get16le(s); + g->flags = stbi__get8(s); + g->bgindex = stbi__get8(s); + g->ratio = stbi__get8(s); + g->transparent = -1; + + if (g->w > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + if (g->h > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + + if (comp != 0) *comp = 4; // can't actually tell whether it's 3 or 4 until we parse the comments + + if (is_info) return 1; + + if (g->flags & 0x80) + stbi__gif_parse_colortable(s,g->pal, 2 << (g->flags & 7), -1); + + return 1; +} + +static int stbi__gif_info_raw(stbi__context *s, int *x, int *y, int *comp) +{ + stbi__gif* g = (stbi__gif*) stbi__malloc(sizeof(stbi__gif)); + if (!stbi__gif_header(s, g, comp, 1)) { + STBI_FREE(g); + stbi__rewind( s ); + return 0; + } + if (x) *x = g->w; + if (y) *y = g->h; + STBI_FREE(g); + return 1; +} + +static void stbi__out_gif_code(stbi__gif *g, stbi__uint16 code) +{ + stbi_uc *p, *c; + int idx; + + // recurse to decode the prefixes, since the linked-list is backwards, + // and working backwards through an interleaved image would be nasty + if (g->codes[code].prefix >= 0) + stbi__out_gif_code(g, g->codes[code].prefix); + + if (g->cur_y >= g->max_y) return; + + idx = g->cur_x + g->cur_y; + p = &g->out[idx]; + g->history[idx / 4] = 1; + + c = &g->color_table[g->codes[code].suffix * 4]; + if (c[3] > 128) { // don't render transparent pixels; + p[0] = c[2]; + p[1] = c[1]; + p[2] = c[0]; + p[3] = c[3]; + } + g->cur_x += 4; + + if (g->cur_x >= g->max_x) { + g->cur_x = g->start_x; + g->cur_y += g->step; + + while (g->cur_y >= g->max_y && g->parse > 0) { + g->step = (1 << g->parse) * g->line_size; + g->cur_y = g->start_y + (g->step >> 1); + --g->parse; + } + } +} + +static stbi_uc *stbi__process_gif_raster(stbi__context *s, stbi__gif *g) +{ + stbi_uc lzw_cs; + stbi__int32 len, init_code; + stbi__uint32 first; + stbi__int32 codesize, codemask, avail, oldcode, bits, valid_bits, clear; + stbi__gif_lzw *p; + + lzw_cs = stbi__get8(s); + if (lzw_cs > 12) return NULL; + clear = 1 << lzw_cs; + first = 1; + codesize = lzw_cs + 1; + codemask = (1 << codesize) - 1; + bits = 0; + valid_bits = 0; + for (init_code = 0; init_code < clear; init_code++) { + g->codes[init_code].prefix = -1; + g->codes[init_code].first = (stbi_uc) init_code; + g->codes[init_code].suffix = (stbi_uc) init_code; + } + + // support no starting clear code + avail = clear+2; + oldcode = -1; + + len = 0; + for(;;) { + if (valid_bits < codesize) { + if (len == 0) { + len = stbi__get8(s); // start new block + if (len == 0) + return g->out; + } + --len; + bits |= (stbi__int32) stbi__get8(s) << valid_bits; + valid_bits += 8; + } else { + stbi__int32 code = bits & codemask; + bits >>= codesize; + valid_bits -= codesize; + // @OPTIMIZE: is there some way we can accelerate the non-clear path? + if (code == clear) { // clear code + codesize = lzw_cs + 1; + codemask = (1 << codesize) - 1; + avail = clear + 2; + oldcode = -1; + first = 0; + } else if (code == clear + 1) { // end of stream code + stbi__skip(s, len); + while ((len = stbi__get8(s)) > 0) + stbi__skip(s,len); + return g->out; + } else if (code <= avail) { + if (first) { + return stbi__errpuc("no clear code", "Corrupt GIF"); + } + + if (oldcode >= 0) { + p = &g->codes[avail++]; + if (avail > 8192) { + return stbi__errpuc("too many codes", "Corrupt GIF"); + } + + p->prefix = (stbi__int16) oldcode; + p->first = g->codes[oldcode].first; + p->suffix = (code == avail) ? p->first : g->codes[code].first; + } else if (code == avail) + return stbi__errpuc("illegal code in raster", "Corrupt GIF"); + + stbi__out_gif_code(g, (stbi__uint16) code); + + if ((avail & codemask) == 0 && avail <= 0x0FFF) { + codesize++; + codemask = (1 << codesize) - 1; + } + + oldcode = code; + } else { + return stbi__errpuc("illegal code in raster", "Corrupt GIF"); + } + } + } +} + +// this function is designed to support animated gifs, although stb_image doesn't support it +// two back is the image from two frames ago, used for a very specific disposal format +static stbi_uc *stbi__gif_load_next(stbi__context *s, stbi__gif *g, int *comp, int req_comp, stbi_uc *two_back) +{ + int dispose; + int first_frame; + int pi; + int pcount; + STBI_NOTUSED(req_comp); + + // on first frame, any non-written pixels get the background colour (non-transparent) + first_frame = 0; + if (g->out == 0) { + if (!stbi__gif_header(s, g, comp,0)) return 0; // stbi__g_failure_reason set by stbi__gif_header + if (!stbi__mad3sizes_valid(4, g->w, g->h, 0)) + return stbi__errpuc("too large", "GIF image is too large"); + pcount = g->w * g->h; + g->out = (stbi_uc *) stbi__malloc(4 * pcount); + g->background = (stbi_uc *) stbi__malloc(4 * pcount); + g->history = (stbi_uc *) stbi__malloc(pcount); + if (!g->out || !g->background || !g->history) + return stbi__errpuc("outofmem", "Out of memory"); + + // image is treated as "transparent" at the start - ie, nothing overwrites the current background; + // background colour is only used for pixels that are not rendered first frame, after that "background" + // color refers to the color that was there the previous frame. + memset(g->out, 0x00, 4 * pcount); + memset(g->background, 0x00, 4 * pcount); // state of the background (starts transparent) + memset(g->history, 0x00, pcount); // pixels that were affected previous frame + first_frame = 1; + } else { + // second frame - how do we dispose of the previous one? + dispose = (g->eflags & 0x1C) >> 2; + pcount = g->w * g->h; + + if ((dispose == 3) && (two_back == 0)) { + dispose = 2; // if I don't have an image to revert back to, default to the old background + } + + if (dispose == 3) { // use previous graphic + for (pi = 0; pi < pcount; ++pi) { + if (g->history[pi]) { + memcpy( &g->out[pi * 4], &two_back[pi * 4], 4 ); + } + } + } else if (dispose == 2) { + // restore what was changed last frame to background before that frame; + for (pi = 0; pi < pcount; ++pi) { + if (g->history[pi]) { + memcpy( &g->out[pi * 4], &g->background[pi * 4], 4 ); + } + } + } else { + // This is a non-disposal case eithe way, so just + // leave the pixels as is, and they will become the new background + // 1: do not dispose + // 0: not specified. + } + + // background is what out is after the undoing of the previou frame; + memcpy( g->background, g->out, 4 * g->w * g->h ); + } + + // clear my history; + memset( g->history, 0x00, g->w * g->h ); // pixels that were affected previous frame + + for (;;) { + int tag = stbi__get8(s); + switch (tag) { + case 0x2C: /* Image Descriptor */ + { + stbi__int32 x, y, w, h; + stbi_uc *o; + + x = stbi__get16le(s); + y = stbi__get16le(s); + w = stbi__get16le(s); + h = stbi__get16le(s); + if (((x + w) > (g->w)) || ((y + h) > (g->h))) + return stbi__errpuc("bad Image Descriptor", "Corrupt GIF"); + + g->line_size = g->w * 4; + g->start_x = x * 4; + g->start_y = y * g->line_size; + g->max_x = g->start_x + w * 4; + g->max_y = g->start_y + h * g->line_size; + g->cur_x = g->start_x; + g->cur_y = g->start_y; + + // if the width of the specified rectangle is 0, that means + // we may not see *any* pixels or the image is malformed; + // to make sure this is caught, move the current y down to + // max_y (which is what out_gif_code checks). + if (w == 0) + g->cur_y = g->max_y; + + g->lflags = stbi__get8(s); + + if (g->lflags & 0x40) { + g->step = 8 * g->line_size; // first interlaced spacing + g->parse = 3; + } else { + g->step = g->line_size; + g->parse = 0; + } + + if (g->lflags & 0x80) { + stbi__gif_parse_colortable(s,g->lpal, 2 << (g->lflags & 7), g->eflags & 0x01 ? g->transparent : -1); + g->color_table = (stbi_uc *) g->lpal; + } else if (g->flags & 0x80) { + g->color_table = (stbi_uc *) g->pal; + } else + return stbi__errpuc("missing color table", "Corrupt GIF"); + + o = stbi__process_gif_raster(s, g); + if (!o) return NULL; + + // if this was the first frame, + pcount = g->w * g->h; + if (first_frame && (g->bgindex > 0)) { + // if first frame, any pixel not drawn to gets the background color + for (pi = 0; pi < pcount; ++pi) { + if (g->history[pi] == 0) { + g->pal[g->bgindex][3] = 255; // just in case it was made transparent, undo that; It will be reset next frame if need be; + memcpy( &g->out[pi * 4], &g->pal[g->bgindex], 4 ); + } + } + } + + return o; + } + + case 0x21: // Comment Extension. + { + int len; + int ext = stbi__get8(s); + if (ext == 0xF9) { // Graphic Control Extension. + len = stbi__get8(s); + if (len == 4) { + g->eflags = stbi__get8(s); + g->delay = 10 * stbi__get16le(s); // delay - 1/100th of a second, saving as 1/1000ths. + + // unset old transparent + if (g->transparent >= 0) { + g->pal[g->transparent][3] = 255; + } + if (g->eflags & 0x01) { + g->transparent = stbi__get8(s); + if (g->transparent >= 0) { + g->pal[g->transparent][3] = 0; + } + } else { + // don't need transparent + stbi__skip(s, 1); + g->transparent = -1; + } + } else { + stbi__skip(s, len); + break; + } + } + while ((len = stbi__get8(s)) != 0) { + stbi__skip(s, len); + } + break; + } + + case 0x3B: // gif stream termination code + return (stbi_uc *) s; // using '1' causes warning on some compilers + + default: + return stbi__errpuc("unknown code", "Corrupt GIF"); + } + } +} + +static void *stbi__load_gif_main(stbi__context *s, int **delays, int *x, int *y, int *z, int *comp, int req_comp) +{ + if (stbi__gif_test(s)) { + int layers = 0; + stbi_uc *u = 0; + stbi_uc *out = 0; + stbi_uc *two_back = 0; + stbi__gif g; + int stride; + int out_size = 0; + int delays_size = 0; + memset(&g, 0, sizeof(g)); + if (delays) { + *delays = 0; + } + + do { + u = stbi__gif_load_next(s, &g, comp, req_comp, two_back); + if (u == (stbi_uc *) s) u = 0; // end of animated gif marker + + if (u) { + *x = g.w; + *y = g.h; + ++layers; + stride = g.w * g.h * 4; + + if (out) { + void *tmp = (stbi_uc*) STBI_REALLOC_SIZED( out, out_size, layers * stride ); + if (NULL == tmp) { + STBI_FREE(g.out); + STBI_FREE(g.history); + STBI_FREE(g.background); + return stbi__errpuc("outofmem", "Out of memory"); + } + else { + out = (stbi_uc*) tmp; + out_size = layers * stride; + } + + if (delays) { + *delays = (int*) STBI_REALLOC_SIZED( *delays, delays_size, sizeof(int) * layers ); + delays_size = layers * sizeof(int); + } + } else { + out = (stbi_uc*)stbi__malloc( layers * stride ); + out_size = layers * stride; + if (delays) { + *delays = (int*) stbi__malloc( layers * sizeof(int) ); + delays_size = layers * sizeof(int); + } + } + memcpy( out + ((layers - 1) * stride), u, stride ); + if (layers >= 2) { + two_back = out - 2 * stride; + } + + if (delays) { + (*delays)[layers - 1U] = g.delay; + } + } + } while (u != 0); + + // free temp buffer; + STBI_FREE(g.out); + STBI_FREE(g.history); + STBI_FREE(g.background); + + // do the final conversion after loading everything; + if (req_comp && req_comp != 4) + out = stbi__convert_format(out, 4, req_comp, layers * g.w, g.h); + + *z = layers; + return out; + } else { + return stbi__errpuc("not GIF", "Image was not as a gif type."); + } +} + +static void *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi_uc *u = 0; + stbi__gif g; + memset(&g, 0, sizeof(g)); + STBI_NOTUSED(ri); + + u = stbi__gif_load_next(s, &g, comp, req_comp, 0); + if (u == (stbi_uc *) s) u = 0; // end of animated gif marker + if (u) { + *x = g.w; + *y = g.h; + + // moved conversion to after successful load so that the same + // can be done for multiple frames. + if (req_comp && req_comp != 4) + u = stbi__convert_format(u, 4, req_comp, g.w, g.h); + } else if (g.out) { + // if there was an error and we allocated an image buffer, free it! + STBI_FREE(g.out); + } + + // free buffers needed for multiple frame loading; + STBI_FREE(g.history); + STBI_FREE(g.background); + + return u; +} + +static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp) +{ + return stbi__gif_info_raw(s,x,y,comp); +} +#endif + +// ************************************************************************************************* +// Radiance RGBE HDR loader +// originally by Nicolas Schulz +#ifndef STBI_NO_HDR +static int stbi__hdr_test_core(stbi__context *s, const char *signature) +{ + int i; + for (i=0; signature[i]; ++i) + if (stbi__get8(s) != signature[i]) + return 0; + stbi__rewind(s); + return 1; +} + +static int stbi__hdr_test(stbi__context* s) +{ + int r = stbi__hdr_test_core(s, "#?RADIANCE\n"); + stbi__rewind(s); + if(!r) { + r = stbi__hdr_test_core(s, "#?RGBE\n"); + stbi__rewind(s); + } + return r; +} + +#define STBI__HDR_BUFLEN 1024 +static char *stbi__hdr_gettoken(stbi__context *z, char *buffer) +{ + int len=0; + char c = '\0'; + + c = (char) stbi__get8(z); + + while (!stbi__at_eof(z) && c != '\n') { + buffer[len++] = c; + if (len == STBI__HDR_BUFLEN-1) { + // flush to end of line + while (!stbi__at_eof(z) && stbi__get8(z) != '\n') + ; + break; + } + c = (char) stbi__get8(z); + } + + buffer[len] = 0; + return buffer; +} + +static void stbi__hdr_convert(float *output, stbi_uc *input, int req_comp) +{ + if ( input[3] != 0 ) { + float f1; + // Exponent + f1 = (float) ldexp(1.0f, input[3] - (int)(128 + 8)); + if (req_comp <= 2) + output[0] = (input[0] + input[1] + input[2]) * f1 / 3; + else { + output[0] = input[0] * f1; + output[1] = input[1] * f1; + output[2] = input[2] * f1; + } + if (req_comp == 2) output[1] = 1; + if (req_comp == 4) output[3] = 1; + } else { + switch (req_comp) { + case 4: output[3] = 1; /* fallthrough */ + case 3: output[0] = output[1] = output[2] = 0; + break; + case 2: output[1] = 1; /* fallthrough */ + case 1: output[0] = 0; + break; + } + } +} + +static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + char buffer[STBI__HDR_BUFLEN]; + char *token; + int valid = 0; + int width, height; + stbi_uc *scanline; + float *hdr_data; + int len; + unsigned char count, value; + int i, j, k, c1,c2, z; + const char *headerToken; + STBI_NOTUSED(ri); + + // Check identifier + headerToken = stbi__hdr_gettoken(s,buffer); + if (strcmp(headerToken, "#?RADIANCE") != 0 && strcmp(headerToken, "#?RGBE") != 0) + return stbi__errpf("not HDR", "Corrupt HDR image"); + + // Parse header + for(;;) { + token = stbi__hdr_gettoken(s,buffer); + if (token[0] == 0) break; + if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1; + } + + if (!valid) return stbi__errpf("unsupported format", "Unsupported HDR format"); + + // Parse width and height + // can't use sscanf() if we're not using stdio! + token = stbi__hdr_gettoken(s,buffer); + if (strncmp(token, "-Y ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format"); + token += 3; + height = (int) strtol(token, &token, 10); + while (*token == ' ') ++token; + if (strncmp(token, "+X ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format"); + token += 3; + width = (int) strtol(token, NULL, 10); + + if (height > STBI_MAX_DIMENSIONS) return stbi__errpf("too large","Very large image (corrupt?)"); + if (width > STBI_MAX_DIMENSIONS) return stbi__errpf("too large","Very large image (corrupt?)"); + + *x = width; + *y = height; + + if (comp) *comp = 3; + if (req_comp == 0) req_comp = 3; + + if (!stbi__mad4sizes_valid(width, height, req_comp, sizeof(float), 0)) + return stbi__errpf("too large", "HDR image is too large"); + + // Read data + hdr_data = (float *) stbi__malloc_mad4(width, height, req_comp, sizeof(float), 0); + if (!hdr_data) + return stbi__errpf("outofmem", "Out of memory"); + + // Load image data + // image data is stored as some number of sca + if ( width < 8 || width >= 32768) { + // Read flat data + for (j=0; j < height; ++j) { + for (i=0; i < width; ++i) { + stbi_uc rgbe[4]; + main_decode_loop: + stbi__getn(s, rgbe, 4); + stbi__hdr_convert(hdr_data + j * width * req_comp + i * req_comp, rgbe, req_comp); + } + } + } else { + // Read RLE-encoded data + scanline = NULL; + + for (j = 0; j < height; ++j) { + c1 = stbi__get8(s); + c2 = stbi__get8(s); + len = stbi__get8(s); + if (c1 != 2 || c2 != 2 || (len & 0x80)) { + // not run-length encoded, so we have to actually use THIS data as a decoded + // pixel (note this can't be a valid pixel--one of RGB must be >= 128) + stbi_uc rgbe[4]; + rgbe[0] = (stbi_uc) c1; + rgbe[1] = (stbi_uc) c2; + rgbe[2] = (stbi_uc) len; + rgbe[3] = (stbi_uc) stbi__get8(s); + stbi__hdr_convert(hdr_data, rgbe, req_comp); + i = 1; + j = 0; + STBI_FREE(scanline); + goto main_decode_loop; // yes, this makes no sense + } + len <<= 8; + len |= stbi__get8(s); + if (len != width) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("invalid decoded scanline length", "corrupt HDR"); } + if (scanline == NULL) { + scanline = (stbi_uc *) stbi__malloc_mad2(width, 4, 0); + if (!scanline) { + STBI_FREE(hdr_data); + return stbi__errpf("outofmem", "Out of memory"); + } + } + + for (k = 0; k < 4; ++k) { + int nleft; + i = 0; + while ((nleft = width - i) > 0) { + count = stbi__get8(s); + if (count > 128) { + // Run + value = stbi__get8(s); + count -= 128; + if (count > nleft) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("corrupt", "bad RLE data in HDR"); } + for (z = 0; z < count; ++z) + scanline[i++ * 4 + k] = value; + } else { + // Dump + if (count > nleft) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("corrupt", "bad RLE data in HDR"); } + for (z = 0; z < count; ++z) + scanline[i++ * 4 + k] = stbi__get8(s); + } + } + } + for (i=0; i < width; ++i) + stbi__hdr_convert(hdr_data+(j*width + i)*req_comp, scanline + i*4, req_comp); + } + if (scanline) + STBI_FREE(scanline); + } + + return hdr_data; +} + +static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp) +{ + char buffer[STBI__HDR_BUFLEN]; + char *token; + int valid = 0; + int dummy; + + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + + if (stbi__hdr_test(s) == 0) { + stbi__rewind( s ); + return 0; + } + + for(;;) { + token = stbi__hdr_gettoken(s,buffer); + if (token[0] == 0) break; + if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1; + } + + if (!valid) { + stbi__rewind( s ); + return 0; + } + token = stbi__hdr_gettoken(s,buffer); + if (strncmp(token, "-Y ", 3)) { + stbi__rewind( s ); + return 0; + } + token += 3; + *y = (int) strtol(token, &token, 10); + while (*token == ' ') ++token; + if (strncmp(token, "+X ", 3)) { + stbi__rewind( s ); + return 0; + } + token += 3; + *x = (int) strtol(token, NULL, 10); + *comp = 3; + return 1; +} +#endif // STBI_NO_HDR + +#ifndef STBI_NO_BMP +static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp) +{ + void *p; + stbi__bmp_data info; + + info.all_a = 255; + p = stbi__bmp_parse_header(s, &info); + stbi__rewind( s ); + if (p == NULL) + return 0; + if (x) *x = s->img_x; + if (y) *y = s->img_y; + if (comp) { + if (info.bpp == 24 && info.ma == 0xff000000) + *comp = 3; + else + *comp = info.ma ? 4 : 3; + } + return 1; +} +#endif + +#ifndef STBI_NO_PSD +static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp) +{ + int channelCount, dummy, depth; + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + if (stbi__get32be(s) != 0x38425053) { + stbi__rewind( s ); + return 0; + } + if (stbi__get16be(s) != 1) { + stbi__rewind( s ); + return 0; + } + stbi__skip(s, 6); + channelCount = stbi__get16be(s); + if (channelCount < 0 || channelCount > 16) { + stbi__rewind( s ); + return 0; + } + *y = stbi__get32be(s); + *x = stbi__get32be(s); + depth = stbi__get16be(s); + if (depth != 8 && depth != 16) { + stbi__rewind( s ); + return 0; + } + if (stbi__get16be(s) != 3) { + stbi__rewind( s ); + return 0; + } + *comp = 4; + return 1; +} + +static int stbi__psd_is16(stbi__context *s) +{ + int channelCount, depth; + if (stbi__get32be(s) != 0x38425053) { + stbi__rewind( s ); + return 0; + } + if (stbi__get16be(s) != 1) { + stbi__rewind( s ); + return 0; + } + stbi__skip(s, 6); + channelCount = stbi__get16be(s); + if (channelCount < 0 || channelCount > 16) { + stbi__rewind( s ); + return 0; + } + (void) stbi__get32be(s); + (void) stbi__get32be(s); + depth = stbi__get16be(s); + if (depth != 16) { + stbi__rewind( s ); + return 0; + } + return 1; +} +#endif + +#ifndef STBI_NO_PIC +static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp) +{ + int act_comp=0,num_packets=0,chained,dummy; + stbi__pic_packet packets[10]; + + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + + if (!stbi__pic_is4(s,"\x53\x80\xF6\x34")) { + stbi__rewind(s); + return 0; + } + + stbi__skip(s, 88); + + *x = stbi__get16be(s); + *y = stbi__get16be(s); + if (stbi__at_eof(s)) { + stbi__rewind( s); + return 0; + } + if ( (*x) != 0 && (1 << 28) / (*x) < (*y)) { + stbi__rewind( s ); + return 0; + } + + stbi__skip(s, 8); + + do { + stbi__pic_packet *packet; + + if (num_packets==sizeof(packets)/sizeof(packets[0])) + return 0; + + packet = &packets[num_packets++]; + chained = stbi__get8(s); + packet->size = stbi__get8(s); + packet->type = stbi__get8(s); + packet->channel = stbi__get8(s); + act_comp |= packet->channel; + + if (stbi__at_eof(s)) { + stbi__rewind( s ); + return 0; + } + if (packet->size != 8) { + stbi__rewind( s ); + return 0; + } + } while (chained); + + *comp = (act_comp & 0x10 ? 4 : 3); + + return 1; +} +#endif + +// ************************************************************************************************* +// Portable Gray Map and Portable Pixel Map loader +// by Ken Miller +// +// PGM: http://netpbm.sourceforge.net/doc/pgm.html +// PPM: http://netpbm.sourceforge.net/doc/ppm.html +// +// Known limitations: +// Does not support comments in the header section +// Does not support ASCII image data (formats P2 and P3) +// Does not support 16-bit-per-channel + +#ifndef STBI_NO_PNM + +static int stbi__pnm_test(stbi__context *s) +{ + char p, t; + p = (char) stbi__get8(s); + t = (char) stbi__get8(s); + if (p != 'P' || (t != '5' && t != '6')) { + stbi__rewind( s ); + return 0; + } + return 1; +} + +static void *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi_uc *out; + STBI_NOTUSED(ri); + + if (!stbi__pnm_info(s, (int *)&s->img_x, (int *)&s->img_y, (int *)&s->img_n)) + return 0; + + if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + + *x = s->img_x; + *y = s->img_y; + if (comp) *comp = s->img_n; + + if (!stbi__mad3sizes_valid(s->img_n, s->img_x, s->img_y, 0)) + return stbi__errpuc("too large", "PNM too large"); + + out = (stbi_uc *) stbi__malloc_mad3(s->img_n, s->img_x, s->img_y, 0); + if (!out) return stbi__errpuc("outofmem", "Out of memory"); + stbi__getn(s, out, s->img_n * s->img_x * s->img_y); + + if (req_comp && req_comp != s->img_n) { + out = stbi__convert_format(out, s->img_n, req_comp, s->img_x, s->img_y); + if (out == NULL) return out; // stbi__convert_format frees input on failure + } + return out; +} + +static int stbi__pnm_isspace(char c) +{ + return c == ' ' || c == '\t' || c == '\n' || c == '\v' || c == '\f' || c == '\r'; +} + +static void stbi__pnm_skip_whitespace(stbi__context *s, char *c) +{ + for (;;) { + while (!stbi__at_eof(s) && stbi__pnm_isspace(*c)) + *c = (char) stbi__get8(s); + + if (stbi__at_eof(s) || *c != '#') + break; + + while (!stbi__at_eof(s) && *c != '\n' && *c != '\r' ) + *c = (char) stbi__get8(s); + } +} + +static int stbi__pnm_isdigit(char c) +{ + return c >= '0' && c <= '9'; +} + +static int stbi__pnm_getinteger(stbi__context *s, char *c) +{ + int value = 0; + + while (!stbi__at_eof(s) && stbi__pnm_isdigit(*c)) { + value = value*10 + (*c - '0'); + *c = (char) stbi__get8(s); + } + + return value; +} + +static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp) +{ + int maxv, dummy; + char c, p, t; + + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + + stbi__rewind(s); + + // Get identifier + p = (char) stbi__get8(s); + t = (char) stbi__get8(s); + if (p != 'P' || (t != '5' && t != '6')) { + stbi__rewind(s); + return 0; + } + + *comp = (t == '6') ? 3 : 1; // '5' is 1-component .pgm; '6' is 3-component .ppm + + c = (char) stbi__get8(s); + stbi__pnm_skip_whitespace(s, &c); + + *x = stbi__pnm_getinteger(s, &c); // read width + stbi__pnm_skip_whitespace(s, &c); + + *y = stbi__pnm_getinteger(s, &c); // read height + stbi__pnm_skip_whitespace(s, &c); + + maxv = stbi__pnm_getinteger(s, &c); // read max value + + if (maxv > 255) + return stbi__err("max value > 255", "PPM image not 8-bit"); + else + return 1; +} +#endif + +static int stbi__info_main(stbi__context *s, int *x, int *y, int *comp) +{ + #ifndef STBI_NO_JPEG + if (stbi__jpeg_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PNG + if (stbi__png_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_GIF + if (stbi__gif_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_BMP + if (stbi__bmp_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PSD + if (stbi__psd_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PIC + if (stbi__pic_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PNM + if (stbi__pnm_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_HDR + if (stbi__hdr_info(s, x, y, comp)) return 1; + #endif + + // test tga last because it's a crappy test! + #ifndef STBI_NO_TGA + if (stbi__tga_info(s, x, y, comp)) + return 1; + #endif + return stbi__err("unknown image type", "Image not of any known type, or corrupt"); +} + +static int stbi__is_16_main(stbi__context *s) +{ + #ifndef STBI_NO_PNG + if (stbi__png_is16(s)) return 1; + #endif + + #ifndef STBI_NO_PSD + if (stbi__psd_is16(s)) return 1; + #endif + + return 0; +} + +#ifndef STBI_NO_STDIO +STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp) +{ + FILE *f = stbi__fopen(filename, "rb"); + int result; + if (!f) return stbi__err("can't fopen", "Unable to open file"); + result = stbi_info_from_file(f, x, y, comp); + fclose(f); + return result; +} + +STBIDEF int stbi_info_from_file(FILE *f, int *x, int *y, int *comp) +{ + int r; + stbi__context s; + long pos = ftell(f); + stbi__start_file(&s, f); + r = stbi__info_main(&s,x,y,comp); + fseek(f,pos,SEEK_SET); + return r; +} + +STBIDEF int stbi_is_16_bit(char const *filename) +{ + FILE *f = stbi__fopen(filename, "rb"); + int result; + if (!f) return stbi__err("can't fopen", "Unable to open file"); + result = stbi_is_16_bit_from_file(f); + fclose(f); + return result; +} + +STBIDEF int stbi_is_16_bit_from_file(FILE *f) +{ + int r; + stbi__context s; + long pos = ftell(f); + stbi__start_file(&s, f); + r = stbi__is_16_main(&s); + fseek(f,pos,SEEK_SET); + return r; +} +#endif // !STBI_NO_STDIO + +STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__info_main(&s,x,y,comp); +} + +STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user); + return stbi__info_main(&s,x,y,comp); +} + +STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__is_16_main(&s); +} + +STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user); + return stbi__is_16_main(&s); +} + +#endif // STB_IMAGE_IMPLEMENTATION + +/* + revision history: + 2.20 (2019-02-07) support utf8 filenames in Windows; fix warnings and platform ifdefs + 2.19 (2018-02-11) fix warning + 2.18 (2018-01-30) fix warnings + 2.17 (2018-01-29) change sbti__shiftsigned to avoid clang -O2 bug + 1-bit BMP + *_is_16_bit api + avoid warnings + 2.16 (2017-07-23) all functions have 16-bit variants; + STBI_NO_STDIO works again; + compilation fixes; + fix rounding in unpremultiply; + optimize vertical flip; + disable raw_len validation; + documentation fixes + 2.15 (2017-03-18) fix png-1,2,4 bug; now all Imagenet JPGs decode; + warning fixes; disable run-time SSE detection on gcc; + uniform handling of optional "return" values; + thread-safe initialization of zlib tables + 2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs + 2.13 (2016-11-29) add 16-bit API, only supported for PNG right now + 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes + 2.11 (2016-04-02) allocate large structures on the stack + remove white matting for transparent PSD + fix reported channel count for PNG & BMP + re-enable SSE2 in non-gcc 64-bit + support RGB-formatted JPEG + read 16-bit PNGs (only as 8-bit) + 2.10 (2016-01-22) avoid warning introduced in 2.09 by STBI_REALLOC_SIZED + 2.09 (2016-01-16) allow comments in PNM files + 16-bit-per-pixel TGA (not bit-per-component) + info() for TGA could break due to .hdr handling + info() for BMP to shares code instead of sloppy parse + can use STBI_REALLOC_SIZED if allocator doesn't support realloc + code cleanup + 2.08 (2015-09-13) fix to 2.07 cleanup, reading RGB PSD as RGBA + 2.07 (2015-09-13) fix compiler warnings + partial animated GIF support + limited 16-bpc PSD support + #ifdef unused functions + bug with < 92 byte PIC,PNM,HDR,TGA + 2.06 (2015-04-19) fix bug where PSD returns wrong '*comp' value + 2.05 (2015-04-19) fix bug in progressive JPEG handling, fix warning + 2.04 (2015-04-15) try to re-enable SIMD on MinGW 64-bit + 2.03 (2015-04-12) extra corruption checking (mmozeiko) + stbi_set_flip_vertically_on_load (nguillemot) + fix NEON support; fix mingw support + 2.02 (2015-01-19) fix incorrect assert, fix warning + 2.01 (2015-01-17) fix various warnings; suppress SIMD on gcc 32-bit without -msse2 + 2.00b (2014-12-25) fix STBI_MALLOC in progressive JPEG + 2.00 (2014-12-25) optimize JPG, including x86 SSE2 & NEON SIMD (ryg) + progressive JPEG (stb) + PGM/PPM support (Ken Miller) + STBI_MALLOC,STBI_REALLOC,STBI_FREE + GIF bugfix -- seemingly never worked + STBI_NO_*, STBI_ONLY_* + 1.48 (2014-12-14) fix incorrectly-named assert() + 1.47 (2014-12-14) 1/2/4-bit PNG support, both direct and paletted (Omar Cornut & stb) + optimize PNG (ryg) + fix bug in interlaced PNG with user-specified channel count (stb) + 1.46 (2014-08-26) + fix broken tRNS chunk (colorkey-style transparency) in non-paletted PNG + 1.45 (2014-08-16) + fix MSVC-ARM internal compiler error by wrapping malloc + 1.44 (2014-08-07) + various warning fixes from Ronny Chevalier + 1.43 (2014-07-15) + fix MSVC-only compiler problem in code changed in 1.42 + 1.42 (2014-07-09) + don't define _CRT_SECURE_NO_WARNINGS (affects user code) + fixes to stbi__cleanup_jpeg path + added STBI_ASSERT to avoid requiring assert.h + 1.41 (2014-06-25) + fix search&replace from 1.36 that messed up comments/error messages + 1.40 (2014-06-22) + fix gcc struct-initialization warning + 1.39 (2014-06-15) + fix to TGA optimization when req_comp != number of components in TGA; + fix to GIF loading because BMP wasn't rewinding (whoops, no GIFs in my test suite) + add support for BMP version 5 (more ignored fields) + 1.38 (2014-06-06) + suppress MSVC warnings on integer casts truncating values + fix accidental rename of 'skip' field of I/O + 1.37 (2014-06-04) + remove duplicate typedef + 1.36 (2014-06-03) + convert to header file single-file library + if de-iphone isn't set, load iphone images color-swapped instead of returning NULL + 1.35 (2014-05-27) + various warnings + fix broken STBI_SIMD path + fix bug where stbi_load_from_file no longer left file pointer in correct place + fix broken non-easy path for 32-bit BMP (possibly never used) + TGA optimization by Arseny Kapoulkine + 1.34 (unknown) + use STBI_NOTUSED in stbi__resample_row_generic(), fix one more leak in tga failure case + 1.33 (2011-07-14) + make stbi_is_hdr work in STBI_NO_HDR (as specified), minor compiler-friendly improvements + 1.32 (2011-07-13) + support for "info" function for all supported filetypes (SpartanJ) + 1.31 (2011-06-20) + a few more leak fixes, bug in PNG handling (SpartanJ) + 1.30 (2011-06-11) + added ability to load files via callbacks to accomidate custom input streams (Ben Wenger) + removed deprecated format-specific test/load functions + removed support for installable file formats (stbi_loader) -- would have been broken for IO callbacks anyway + error cases in bmp and tga give messages and don't leak (Raymond Barbiero, grisha) + fix inefficiency in decoding 32-bit BMP (David Woo) + 1.29 (2010-08-16) + various warning fixes from Aurelien Pocheville + 1.28 (2010-08-01) + fix bug in GIF palette transparency (SpartanJ) + 1.27 (2010-08-01) + cast-to-stbi_uc to fix warnings + 1.26 (2010-07-24) + fix bug in file buffering for PNG reported by SpartanJ + 1.25 (2010-07-17) + refix trans_data warning (Won Chun) + 1.24 (2010-07-12) + perf improvements reading from files on platforms with lock-heavy fgetc() + minor perf improvements for jpeg + deprecated type-specific functions so we'll get feedback if they're needed + attempt to fix trans_data warning (Won Chun) + 1.23 fixed bug in iPhone support + 1.22 (2010-07-10) + removed image *writing* support + stbi_info support from Jetro Lauha + GIF support from Jean-Marc Lienher + iPhone PNG-extensions from James Brown + warning-fixes from Nicolas Schulz and Janez Zemva (i.stbi__err. Janez (U+017D)emva) + 1.21 fix use of 'stbi_uc' in header (reported by jon blow) + 1.20 added support for Softimage PIC, by Tom Seddon + 1.19 bug in interlaced PNG corruption check (found by ryg) + 1.18 (2008-08-02) + fix a threading bug (local mutable static) + 1.17 support interlaced PNG + 1.16 major bugfix - stbi__convert_format converted one too many pixels + 1.15 initialize some fields for thread safety + 1.14 fix threadsafe conversion bug + header-file-only version (#define STBI_HEADER_FILE_ONLY before including) + 1.13 threadsafe + 1.12 const qualifiers in the API + 1.11 Support installable IDCT, colorspace conversion routines + 1.10 Fixes for 64-bit (don't use "unsigned long") + optimized upsampling by Fabian "ryg" Giesen + 1.09 Fix format-conversion for PSD code (bad global variables!) + 1.08 Thatcher Ulrich's PSD code integrated by Nicolas Schulz + 1.07 attempt to fix C++ warning/errors again + 1.06 attempt to fix C++ warning/errors again + 1.05 fix TGA loading to return correct *comp and use good luminance calc + 1.04 default float alpha is 1, not 255; use 'void *' for stbi_image_free + 1.03 bugfixes to STBI_NO_STDIO, STBI_NO_HDR + 1.02 support for (subset of) HDR files, float interface for preferred access to them + 1.01 fix bug: possible bug in handling right-side up bmps... not sure + fix bug: the stbi__bmp_load() and stbi__tga_load() functions didn't work at all + 1.00 interface to zlib that skips zlib header + 0.99 correct handling of alpha in palette + 0.98 TGA loader by lonesock; dynamically add loaders (untested) + 0.97 jpeg errors on too large a file; also catch another malloc failure + 0.96 fix detection of invalid v value - particleman@mollyrocket forum + 0.95 during header scan, seek to markers in case of padding + 0.94 STBI_NO_STDIO to disable stdio usage; rename all #defines the same + 0.93 handle jpegtran output; verbose errors + 0.92 read 4,8,16,24,32-bit BMP files of several formats + 0.91 output 24-bit Windows 3.0 BMP files + 0.90 fix a few more warnings; bump version number to approach 1.0 + 0.61 bugfixes due to Marc LeBlanc, Christopher Lloyd + 0.60 fix compiling as c++ + 0.59 fix warnings: merge Dave Moore's -Wall fixes + 0.58 fix bug: zlib uncompressed mode len/nlen was wrong endian + 0.57 fix bug: jpg last huffman symbol before marker was >9 bits but less than 16 available + 0.56 fix bug: zlib uncompressed mode len vs. nlen + 0.55 fix bug: restart_interval not initialized to 0 + 0.54 allow NULL for 'int *comp' + 0.53 fix bug in png 3->4; speedup png decoding + 0.52 png handles req_comp=3,4 directly; minor cleanup; jpeg comments + 0.51 obey req_comp requests, 1-component jpegs return as 1-component, + on 'test' only check type, not whether we support this variant + 0.50 (2006-11-19) + first released version +*/ + + +/* +------------------------------------------------------------------------------ +This software is available under 2 licenses -- choose whichever you prefer. +------------------------------------------------------------------------------ +ALTERNATIVE A - MIT License +Copyright (c) 2017 Sean Barrett +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +------------------------------------------------------------------------------ +ALTERNATIVE B - Public Domain (www.unlicense.org) +This is free and unencumbered software released into the public domain. +Anyone is free to copy, modify, publish, use, compile, sell, or distribute this +software, either in source code form or as a compiled binary, for any purpose, +commercial or non-commercial, and by any means. +In jurisdictions that recognize copyright laws, the author or authors of this +software dedicate any and all copyright interest in the software to the public +domain. We make this dedication for the benefit of the public at large and to +the detriment of our heirs and successors. We intend this dedication to be an +overt act of relinquishment in perpetuity of all present and future rights to +this software under copyright law. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +------------------------------------------------------------------------------ +*/ diff --git a/stb_image_write.h b/stb_image_write.h new file mode 100644 index 0000000..95943eb --- /dev/null +++ b/stb_image_write.h @@ -0,0 +1,1690 @@ +/* stb_image_write - v1.15 - public domain - http://nothings.org/stb + writes out PNG/BMP/TGA/JPEG/HDR images to C stdio - Sean Barrett 2010-2015 + no warranty implied; use at your own risk + + Before #including, + + #define STB_IMAGE_WRITE_IMPLEMENTATION + + in the file that you want to have the implementation. + + Will probably not work correctly with strict-aliasing optimizations. + +ABOUT: + + This header file is a library for writing images to C stdio or a callback. + + The PNG output is not optimal; it is 20-50% larger than the file + written by a decent optimizing implementation; though providing a custom + zlib compress function (see STBIW_ZLIB_COMPRESS) can mitigate that. + This library is designed for source code compactness and simplicity, + not optimal image file size or run-time performance. + +BUILDING: + + You can #define STBIW_ASSERT(x) before the #include to avoid using assert.h. + You can #define STBIW_MALLOC(), STBIW_REALLOC(), and STBIW_FREE() to replace + malloc,realloc,free. + You can #define STBIW_MEMMOVE() to replace memmove() + You can #define STBIW_ZLIB_COMPRESS to use a custom zlib-style compress function + for PNG compression (instead of the builtin one), it must have the following signature: + unsigned char * my_compress(unsigned char *data, int data_len, int *out_len, int quality); + The returned data will be freed with STBIW_FREE() (free() by default), + so it must be heap allocated with STBIW_MALLOC() (malloc() by default), + +UNICODE: + + If compiling for Windows and you wish to use Unicode filenames, compile + with + #define STBIW_WINDOWS_UTF8 + and pass utf8-encoded filenames. Call stbiw_convert_wchar_to_utf8 to convert + Windows wchar_t filenames to utf8. + +USAGE: + + There are five functions, one for each image file format: + + int stbi_write_png(char const *filename, int w, int h, int comp, const void *data, int stride_in_bytes); + int stbi_write_bmp(char const *filename, int w, int h, int comp, const void *data); + int stbi_write_tga(char const *filename, int w, int h, int comp, const void *data); + int stbi_write_jpg(char const *filename, int w, int h, int comp, const void *data, int quality); + int stbi_write_hdr(char const *filename, int w, int h, int comp, const float *data); + + void stbi_flip_vertically_on_write(int flag); // flag is non-zero to flip data vertically + + There are also five equivalent functions that use an arbitrary write function. You are + expected to open/close your file-equivalent before and after calling these: + + int stbi_write_png_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void *data, int stride_in_bytes); + int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void *data); + int stbi_write_tga_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void *data); + int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const float *data); + int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality); + + where the callback is: + void stbi_write_func(void *context, void *data, int size); + + You can configure it with these global variables: + int stbi_write_tga_with_rle; // defaults to true; set to 0 to disable RLE + int stbi_write_png_compression_level; // defaults to 8; set to higher for more compression + int stbi_write_force_png_filter; // defaults to -1; set to 0..5 to force a filter mode + + + You can define STBI_WRITE_NO_STDIO to disable the file variant of these + functions, so the library will not use stdio.h at all. However, this will + also disable HDR writing, because it requires stdio for formatted output. + + Each function returns 0 on failure and non-0 on success. + + The functions create an image file defined by the parameters. The image + is a rectangle of pixels stored from left-to-right, top-to-bottom. + Each pixel contains 'comp' channels of data stored interleaved with 8-bits + per channel, in the following order: 1=Y, 2=YA, 3=RGB, 4=RGBA. (Y is + monochrome color.) The rectangle is 'w' pixels wide and 'h' pixels tall. + The *data pointer points to the first byte of the top-left-most pixel. + For PNG, "stride_in_bytes" is the distance in bytes from the first byte of + a row of pixels to the first byte of the next row of pixels. + + PNG creates output files with the same number of components as the input. + The BMP format expands Y to RGB in the file format and does not + output alpha. + + PNG supports writing rectangles of data even when the bytes storing rows of + data are not consecutive in memory (e.g. sub-rectangles of a larger image), + by supplying the stride between the beginning of adjacent rows. The other + formats do not. (Thus you cannot write a native-format BMP through the BMP + writer, both because it is in BGR order and because it may have padding + at the end of the line.) + + PNG allows you to set the deflate compression level by setting the global + variable 'stbi_write_png_compression_level' (it defaults to 8). + + HDR expects linear float data. Since the format is always 32-bit rgb(e) + data, alpha (if provided) is discarded, and for monochrome data it is + replicated across all three channels. + + TGA supports RLE or non-RLE compressed data. To use non-RLE-compressed + data, set the global variable 'stbi_write_tga_with_rle' to 0. + + JPEG does ignore alpha channels in input data; quality is between 1 and 100. + Higher quality looks better but results in a bigger image. + JPEG baseline (no JPEG progressive). + +CREDITS: + + + Sean Barrett - PNG/BMP/TGA + Baldur Karlsson - HDR + Jean-Sebastien Guay - TGA monochrome + Tim Kelsey - misc enhancements + Alan Hickman - TGA RLE + Emmanuel Julien - initial file IO callback implementation + Jon Olick - original jo_jpeg.cpp code + Daniel Gibson - integrate JPEG, allow external zlib + Aarni Koskela - allow choosing PNG filter + + bugfixes: + github:Chribba + Guillaume Chereau + github:jry2 + github:romigrou + Sergio Gonzalez + Jonas Karlsson + Filip Wasil + Thatcher Ulrich + github:poppolopoppo + Patrick Boettcher + github:xeekworx + Cap Petschulat + Simon Rodriguez + Ivan Tikhonov + github:ignotion + Adam Schackart + +LICENSE + + See end of file for license information. + +*/ + +#ifndef INCLUDE_STB_IMAGE_WRITE_H +#define INCLUDE_STB_IMAGE_WRITE_H + +#include + +// if STB_IMAGE_WRITE_STATIC causes problems, try defining STBIWDEF to 'inline' or 'static inline' +#ifndef STBIWDEF +#ifdef STB_IMAGE_WRITE_STATIC +#define STBIWDEF static +#else +#ifdef __cplusplus +#define STBIWDEF extern "C" +#else +#define STBIWDEF extern +#endif +#endif +#endif + +#ifndef STB_IMAGE_WRITE_STATIC // C++ forbids static forward declarations +extern int stbi_write_tga_with_rle; +extern int stbi_write_png_compression_level; +extern int stbi_write_force_png_filter; +#endif + +#ifndef STBI_WRITE_NO_STDIO +STBIWDEF int stbi_write_png(char const *filename, int w, int h, int comp, const void *data, int stride_in_bytes); +STBIWDEF int stbi_write_bmp(char const *filename, int w, int h, int comp, const void *data); +STBIWDEF int stbi_write_tga(char const *filename, int w, int h, int comp, const void *data); +STBIWDEF int stbi_write_hdr(char const *filename, int w, int h, int comp, const float *data); +STBIWDEF int stbi_write_jpg(char const *filename, int x, int y, int comp, const void *data, int quality); + +#ifdef STBI_WINDOWS_UTF8 +STBIWDEF int stbiw_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input); +#endif +#endif + +typedef void stbi_write_func(void *context, void *data, int size); + +STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void *data, int stride_in_bytes); +STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void *data); +STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void *data); +STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const float *data); +STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality); + +STBIWDEF void stbi_flip_vertically_on_write(int flip_boolean); + +#endif//INCLUDE_STB_IMAGE_WRITE_H + +#ifdef STB_IMAGE_WRITE_IMPLEMENTATION + +#ifdef _WIN32 + #ifndef _CRT_SECURE_NO_WARNINGS + #define _CRT_SECURE_NO_WARNINGS + #endif + #ifndef _CRT_NONSTDC_NO_DEPRECATE + #define _CRT_NONSTDC_NO_DEPRECATE + #endif +#endif + +#ifndef STBI_WRITE_NO_STDIO +#include +#endif // STBI_WRITE_NO_STDIO + +#include +#include +#include +#include + +#if defined(STBIW_MALLOC) && defined(STBIW_FREE) && (defined(STBIW_REALLOC) || defined(STBIW_REALLOC_SIZED)) +// ok +#elif !defined(STBIW_MALLOC) && !defined(STBIW_FREE) && !defined(STBIW_REALLOC) && !defined(STBIW_REALLOC_SIZED) +// ok +#else +#error "Must define all or none of STBIW_MALLOC, STBIW_FREE, and STBIW_REALLOC (or STBIW_REALLOC_SIZED)." +#endif + +#ifndef STBIW_MALLOC +#define STBIW_MALLOC(sz) malloc(sz) +#define STBIW_REALLOC(p,newsz) realloc(p,newsz) +#define STBIW_FREE(p) free(p) +#endif + +#ifndef STBIW_REALLOC_SIZED +#define STBIW_REALLOC_SIZED(p,oldsz,newsz) STBIW_REALLOC(p,newsz) +#endif + + +#ifndef STBIW_MEMMOVE +#define STBIW_MEMMOVE(a,b,sz) memmove(a,b,sz) +#endif + + +#ifndef STBIW_ASSERT +#include +#define STBIW_ASSERT(x) assert(x) +#endif + +#define STBIW_UCHAR(x) (unsigned char) ((x) & 0xff) + +#ifdef STB_IMAGE_WRITE_STATIC +static int stbi_write_png_compression_level = 8; +static int stbi_write_tga_with_rle = 1; +static int stbi_write_force_png_filter = -1; +#else +int stbi_write_png_compression_level = 8; +int stbi_write_tga_with_rle = 1; +int stbi_write_force_png_filter = -1; +#endif + +static int stbi__flip_vertically_on_write = 0; + +STBIWDEF void stbi_flip_vertically_on_write(int flag) +{ + stbi__flip_vertically_on_write = flag; +} + +typedef struct +{ + stbi_write_func *func; + void *context; + unsigned char buffer[64]; + int buf_used; +} stbi__write_context; + +// initialize a callback-based context +static void stbi__start_write_callbacks(stbi__write_context *s, stbi_write_func *c, void *context) +{ + s->func = c; + s->context = context; +} + +#ifndef STBI_WRITE_NO_STDIO + +static void stbi__stdio_write(void *context, void *data, int size) +{ + fwrite(data,1,size,(FILE*) context); +} + +#if defined(_MSC_VER) && defined(STBI_WINDOWS_UTF8) +#ifdef __cplusplus +#define STBIW_EXTERN extern "C" +#else +#define STBIW_EXTERN extern +#endif +STBIW_EXTERN __declspec(dllimport) int __stdcall MultiByteToWideChar(unsigned int cp, unsigned long flags, const char *str, int cbmb, wchar_t *widestr, int cchwide); +STBIW_EXTERN __declspec(dllimport) int __stdcall WideCharToMultiByte(unsigned int cp, unsigned long flags, const wchar_t *widestr, int cchwide, char *str, int cbmb, const char *defchar, int *used_default); + +STBIWDEF int stbiw_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input) +{ + return WideCharToMultiByte(65001 /* UTF8 */, 0, input, -1, buffer, (int) bufferlen, NULL, NULL); +} +#endif + +static FILE *stbiw__fopen(char const *filename, char const *mode) +{ + FILE *f; +#if defined(_MSC_VER) && defined(STBI_WINDOWS_UTF8) + wchar_t wMode[64]; + wchar_t wFilename[1024]; + if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, filename, -1, wFilename, sizeof(wFilename))) + return 0; + + if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, mode, -1, wMode, sizeof(wMode))) + return 0; + +#if _MSC_VER >= 1400 + if (0 != _wfopen_s(&f, wFilename, wMode)) + f = 0; +#else + f = _wfopen(wFilename, wMode); +#endif + +#elif defined(_MSC_VER) && _MSC_VER >= 1400 + if (0 != fopen_s(&f, filename, mode)) + f=0; +#else + f = fopen(filename, mode); +#endif + return f; +} + +static int stbi__start_write_file(stbi__write_context *s, const char *filename) +{ + FILE *f = stbiw__fopen(filename, "wb"); + stbi__start_write_callbacks(s, stbi__stdio_write, (void *) f); + return f != NULL; +} + +static void stbi__end_write_file(stbi__write_context *s) +{ + fclose((FILE *)s->context); +} + +#endif // !STBI_WRITE_NO_STDIO + +typedef unsigned int stbiw_uint32; +typedef int stb_image_write_test[sizeof(stbiw_uint32)==4 ? 1 : -1]; + +static void stbiw__writefv(stbi__write_context *s, const char *fmt, va_list v) +{ + while (*fmt) { + switch (*fmt++) { + case ' ': break; + case '1': { unsigned char x = STBIW_UCHAR(va_arg(v, int)); + s->func(s->context,&x,1); + break; } + case '2': { int x = va_arg(v,int); + unsigned char b[2]; + b[0] = STBIW_UCHAR(x); + b[1] = STBIW_UCHAR(x>>8); + s->func(s->context,b,2); + break; } + case '4': { stbiw_uint32 x = va_arg(v,int); + unsigned char b[4]; + b[0]=STBIW_UCHAR(x); + b[1]=STBIW_UCHAR(x>>8); + b[2]=STBIW_UCHAR(x>>16); + b[3]=STBIW_UCHAR(x>>24); + s->func(s->context,b,4); + break; } + default: + STBIW_ASSERT(0); + return; + } + } +} + +static void stbiw__writef(stbi__write_context *s, const char *fmt, ...) +{ + va_list v; + va_start(v, fmt); + stbiw__writefv(s, fmt, v); + va_end(v); +} + +static void stbiw__write_flush(stbi__write_context *s) +{ + if (s->buf_used) { + s->func(s->context, &s->buffer, s->buf_used); + s->buf_used = 0; + } +} + +static void stbiw__putc(stbi__write_context *s, unsigned char c) +{ + s->func(s->context, &c, 1); +} + +static void stbiw__write1(stbi__write_context *s, unsigned char a) +{ + if (s->buf_used + 1 > sizeof(s->buffer)) + stbiw__write_flush(s); + s->buffer[s->buf_used++] = a; +} + +static void stbiw__write3(stbi__write_context *s, unsigned char a, unsigned char b, unsigned char c) +{ + int n; + if (s->buf_used + 3 > sizeof(s->buffer)) + stbiw__write_flush(s); + n = s->buf_used; + s->buf_used = n+3; + s->buffer[n+0] = a; + s->buffer[n+1] = b; + s->buffer[n+2] = c; +} + +static void stbiw__write_pixel(stbi__write_context *s, int rgb_dir, int comp, int write_alpha, int expand_mono, unsigned char *d) +{ + unsigned char bg[3] = { 255, 0, 255}, px[3]; + int k; + + if (write_alpha < 0) + stbiw__write1(s, d[comp - 1]); + + switch (comp) { + case 2: // 2 pixels = mono + alpha, alpha is written separately, so same as 1-channel case + case 1: + if (expand_mono) + stbiw__write3(s, d[0], d[0], d[0]); // monochrome bmp + else + stbiw__write1(s, d[0]); // monochrome TGA + break; + case 4: + if (!write_alpha) { + // composite against pink background + for (k = 0; k < 3; ++k) + px[k] = bg[k] + ((d[k] - bg[k]) * d[3]) / 255; + stbiw__write3(s, px[1 - rgb_dir], px[1], px[1 + rgb_dir]); + break; + } + /* FALLTHROUGH */ + case 3: + stbiw__write3(s, d[1 - rgb_dir], d[1], d[1 + rgb_dir]); + break; + } + if (write_alpha > 0) + stbiw__write1(s, d[comp - 1]); +} + +static void stbiw__write_pixels(stbi__write_context *s, int rgb_dir, int vdir, int x, int y, int comp, void *data, int write_alpha, int scanline_pad, int expand_mono) +{ + stbiw_uint32 zero = 0; + int i,j, j_end; + + if (y <= 0) + return; + + if (stbi__flip_vertically_on_write) + vdir *= -1; + + if (vdir < 0) { + j_end = -1; j = y-1; + } else { + j_end = y; j = 0; + } + + for (; j != j_end; j += vdir) { + for (i=0; i < x; ++i) { + unsigned char *d = (unsigned char *) data + (j*x+i)*comp; + stbiw__write_pixel(s, rgb_dir, comp, write_alpha, expand_mono, d); + } + stbiw__write_flush(s); + s->func(s->context, &zero, scanline_pad); + } +} + +static int stbiw__outfile(stbi__write_context *s, int rgb_dir, int vdir, int x, int y, int comp, int expand_mono, void *data, int alpha, int pad, const char *fmt, ...) +{ + if (y < 0 || x < 0) { + return 0; + } else { + va_list v; + va_start(v, fmt); + stbiw__writefv(s, fmt, v); + va_end(v); + stbiw__write_pixels(s,rgb_dir,vdir,x,y,comp,data,alpha,pad, expand_mono); + return 1; + } +} + +static int stbi_write_bmp_core(stbi__write_context *s, int x, int y, int comp, const void *data) +{ + int pad = (-x*3) & 3; + return stbiw__outfile(s,-1,-1,x,y,comp,1,(void *) data,0,pad, + "11 4 22 4" "4 44 22 444444", + 'B', 'M', 14+40+(x*3+pad)*y, 0,0, 14+40, // file header + 40, x,y, 1,24, 0,0,0,0,0,0); // bitmap header +} + +STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data) +{ + stbi__write_context s = { 0 }; + stbi__start_write_callbacks(&s, func, context); + return stbi_write_bmp_core(&s, x, y, comp, data); +} + +#ifndef STBI_WRITE_NO_STDIO +STBIWDEF int stbi_write_bmp(char const *filename, int x, int y, int comp, const void *data) +{ + stbi__write_context s = { 0 }; + if (stbi__start_write_file(&s,filename)) { + int r = stbi_write_bmp_core(&s, x, y, comp, data); + stbi__end_write_file(&s); + return r; + } else + return 0; +} +#endif //!STBI_WRITE_NO_STDIO + +static int stbi_write_tga_core(stbi__write_context *s, int x, int y, int comp, void *data) +{ + int has_alpha = (comp == 2 || comp == 4); + int colorbytes = has_alpha ? comp-1 : comp; + int format = colorbytes < 2 ? 3 : 2; // 3 color channels (RGB/RGBA) = 2, 1 color channel (Y/YA) = 3 + + if (y < 0 || x < 0) + return 0; + + if (!stbi_write_tga_with_rle) { + return stbiw__outfile(s, -1, -1, x, y, comp, 0, (void *) data, has_alpha, 0, + "111 221 2222 11", 0, 0, format, 0, 0, 0, 0, 0, x, y, (colorbytes + has_alpha) * 8, has_alpha * 8); + } else { + int i,j,k; + int jend, jdir; + + stbiw__writef(s, "111 221 2222 11", 0,0,format+8, 0,0,0, 0,0,x,y, (colorbytes + has_alpha) * 8, has_alpha * 8); + + if (stbi__flip_vertically_on_write) { + j = 0; + jend = y; + jdir = 1; + } else { + j = y-1; + jend = -1; + jdir = -1; + } + for (; j != jend; j += jdir) { + unsigned char *row = (unsigned char *) data + j * x * comp; + int len; + + for (i = 0; i < x; i += len) { + unsigned char *begin = row + i * comp; + int diff = 1; + len = 1; + + if (i < x - 1) { + ++len; + diff = memcmp(begin, row + (i + 1) * comp, comp); + if (diff) { + const unsigned char *prev = begin; + for (k = i + 2; k < x && len < 128; ++k) { + if (memcmp(prev, row + k * comp, comp)) { + prev += comp; + ++len; + } else { + --len; + break; + } + } + } else { + for (k = i + 2; k < x && len < 128; ++k) { + if (!memcmp(begin, row + k * comp, comp)) { + ++len; + } else { + break; + } + } + } + } + + if (diff) { + unsigned char header = STBIW_UCHAR(len - 1); + stbiw__write1(s, header); + for (k = 0; k < len; ++k) { + stbiw__write_pixel(s, -1, comp, has_alpha, 0, begin + k * comp); + } + } else { + unsigned char header = STBIW_UCHAR(len - 129); + stbiw__write1(s, header); + stbiw__write_pixel(s, -1, comp, has_alpha, 0, begin); + } + } + } + stbiw__write_flush(s); + } + return 1; +} + +STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data) +{ + stbi__write_context s = { 0 }; + stbi__start_write_callbacks(&s, func, context); + return stbi_write_tga_core(&s, x, y, comp, (void *) data); +} + +#ifndef STBI_WRITE_NO_STDIO +STBIWDEF int stbi_write_tga(char const *filename, int x, int y, int comp, const void *data) +{ + stbi__write_context s = { 0 }; + if (stbi__start_write_file(&s,filename)) { + int r = stbi_write_tga_core(&s, x, y, comp, (void *) data); + stbi__end_write_file(&s); + return r; + } else + return 0; +} +#endif + +// ************************************************************************************************* +// Radiance RGBE HDR writer +// by Baldur Karlsson + +#define stbiw__max(a, b) ((a) > (b) ? (a) : (b)) + +static void stbiw__linear_to_rgbe(unsigned char *rgbe, float *linear) +{ + int exponent; + float maxcomp = stbiw__max(linear[0], stbiw__max(linear[1], linear[2])); + + if (maxcomp < 1e-32f) { + rgbe[0] = rgbe[1] = rgbe[2] = rgbe[3] = 0; + } else { + float normalize = (float) frexp(maxcomp, &exponent) * 256.0f/maxcomp; + + rgbe[0] = (unsigned char)(linear[0] * normalize); + rgbe[1] = (unsigned char)(linear[1] * normalize); + rgbe[2] = (unsigned char)(linear[2] * normalize); + rgbe[3] = (unsigned char)(exponent + 128); + } +} + +static void stbiw__write_run_data(stbi__write_context *s, int length, unsigned char databyte) +{ + unsigned char lengthbyte = STBIW_UCHAR(length+128); + STBIW_ASSERT(length+128 <= 255); + s->func(s->context, &lengthbyte, 1); + s->func(s->context, &databyte, 1); +} + +static void stbiw__write_dump_data(stbi__write_context *s, int length, unsigned char *data) +{ + unsigned char lengthbyte = STBIW_UCHAR(length); + STBIW_ASSERT(length <= 128); // inconsistent with spec but consistent with official code + s->func(s->context, &lengthbyte, 1); + s->func(s->context, data, length); +} + +static void stbiw__write_hdr_scanline(stbi__write_context *s, int width, int ncomp, unsigned char *scratch, float *scanline) +{ + unsigned char scanlineheader[4] = { 2, 2, 0, 0 }; + unsigned char rgbe[4]; + float linear[3]; + int x; + + scanlineheader[2] = (width&0xff00)>>8; + scanlineheader[3] = (width&0x00ff); + + /* skip RLE for images too small or large */ + if (width < 8 || width >= 32768) { + for (x=0; x < width; x++) { + switch (ncomp) { + case 4: /* fallthrough */ + case 3: linear[2] = scanline[x*ncomp + 2]; + linear[1] = scanline[x*ncomp + 1]; + linear[0] = scanline[x*ncomp + 0]; + break; + default: + linear[0] = linear[1] = linear[2] = scanline[x*ncomp + 0]; + break; + } + stbiw__linear_to_rgbe(rgbe, linear); + s->func(s->context, rgbe, 4); + } + } else { + int c,r; + /* encode into scratch buffer */ + for (x=0; x < width; x++) { + switch(ncomp) { + case 4: /* fallthrough */ + case 3: linear[2] = scanline[x*ncomp + 2]; + linear[1] = scanline[x*ncomp + 1]; + linear[0] = scanline[x*ncomp + 0]; + break; + default: + linear[0] = linear[1] = linear[2] = scanline[x*ncomp + 0]; + break; + } + stbiw__linear_to_rgbe(rgbe, linear); + scratch[x + width*0] = rgbe[0]; + scratch[x + width*1] = rgbe[1]; + scratch[x + width*2] = rgbe[2]; + scratch[x + width*3] = rgbe[3]; + } + + s->func(s->context, scanlineheader, 4); + + /* RLE each component separately */ + for (c=0; c < 4; c++) { + unsigned char *comp = &scratch[width*c]; + + x = 0; + while (x < width) { + // find first run + r = x; + while (r+2 < width) { + if (comp[r] == comp[r+1] && comp[r] == comp[r+2]) + break; + ++r; + } + if (r+2 >= width) + r = width; + // dump up to first run + while (x < r) { + int len = r-x; + if (len > 128) len = 128; + stbiw__write_dump_data(s, len, &comp[x]); + x += len; + } + // if there's a run, output it + if (r+2 < width) { // same test as what we break out of in search loop, so only true if we break'd + // find next byte after run + while (r < width && comp[r] == comp[x]) + ++r; + // output run up to r + while (x < r) { + int len = r-x; + if (len > 127) len = 127; + stbiw__write_run_data(s, len, comp[x]); + x += len; + } + } + } + } + } +} + +static int stbi_write_hdr_core(stbi__write_context *s, int x, int y, int comp, float *data) +{ + if (y <= 0 || x <= 0 || data == NULL) + return 0; + else { + // Each component is stored separately. Allocate scratch space for full output scanline. + unsigned char *scratch = (unsigned char *) STBIW_MALLOC(x*4); + int i, len; + char buffer[128]; + char header[] = "#?RADIANCE\n# Written by stb_image_write.h\nFORMAT=32-bit_rle_rgbe\n"; + s->func(s->context, header, sizeof(header)-1); + +#ifdef __STDC_WANT_SECURE_LIB__ + len = sprintf_s(buffer, sizeof(buffer), "EXPOSURE= 1.0000000000000\n\n-Y %d +X %d\n", y, x); +#else + len = sprintf(buffer, "EXPOSURE= 1.0000000000000\n\n-Y %d +X %d\n", y, x); +#endif + s->func(s->context, buffer, len); + + for(i=0; i < y; i++) + stbiw__write_hdr_scanline(s, x, comp, scratch, data + comp*x*(stbi__flip_vertically_on_write ? y-1-i : i)); + STBIW_FREE(scratch); + return 1; + } +} + +STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data) +{ + stbi__write_context s = { 0 }; + stbi__start_write_callbacks(&s, func, context); + return stbi_write_hdr_core(&s, x, y, comp, (float *) data); +} + +#ifndef STBI_WRITE_NO_STDIO +STBIWDEF int stbi_write_hdr(char const *filename, int x, int y, int comp, const float *data) +{ + stbi__write_context s = { 0 }; + if (stbi__start_write_file(&s,filename)) { + int r = stbi_write_hdr_core(&s, x, y, comp, (float *) data); + stbi__end_write_file(&s); + return r; + } else + return 0; +} +#endif // STBI_WRITE_NO_STDIO + + +////////////////////////////////////////////////////////////////////////////// +// +// PNG writer +// + +#ifndef STBIW_ZLIB_COMPRESS +// stretchy buffer; stbiw__sbpush() == vector<>::push_back() -- stbiw__sbcount() == vector<>::size() +#define stbiw__sbraw(a) ((int *) (void *) (a) - 2) +#define stbiw__sbm(a) stbiw__sbraw(a)[0] +#define stbiw__sbn(a) stbiw__sbraw(a)[1] + +#define stbiw__sbneedgrow(a,n) ((a)==0 || stbiw__sbn(a)+n >= stbiw__sbm(a)) +#define stbiw__sbmaybegrow(a,n) (stbiw__sbneedgrow(a,(n)) ? stbiw__sbgrow(a,n) : 0) +#define stbiw__sbgrow(a,n) stbiw__sbgrowf((void **) &(a), (n), sizeof(*(a))) + +#define stbiw__sbpush(a, v) (stbiw__sbmaybegrow(a,1), (a)[stbiw__sbn(a)++] = (v)) +#define stbiw__sbcount(a) ((a) ? stbiw__sbn(a) : 0) +#define stbiw__sbfree(a) ((a) ? STBIW_FREE(stbiw__sbraw(a)),0 : 0) + +static void *stbiw__sbgrowf(void **arr, int increment, int itemsize) +{ + int m = *arr ? 2*stbiw__sbm(*arr)+increment : increment+1; + void *p = STBIW_REALLOC_SIZED(*arr ? stbiw__sbraw(*arr) : 0, *arr ? (stbiw__sbm(*arr)*itemsize + sizeof(int)*2) : 0, itemsize * m + sizeof(int)*2); + STBIW_ASSERT(p); + if (p) { + if (!*arr) ((int *) p)[1] = 0; + *arr = (void *) ((int *) p + 2); + stbiw__sbm(*arr) = m; + } + return *arr; +} + +static unsigned char *stbiw__zlib_flushf(unsigned char *data, unsigned int *bitbuffer, int *bitcount) +{ + while (*bitcount >= 8) { + stbiw__sbpush(data, STBIW_UCHAR(*bitbuffer)); + *bitbuffer >>= 8; + *bitcount -= 8; + } + return data; +} + +static int stbiw__zlib_bitrev(int code, int codebits) +{ + int res=0; + while (codebits--) { + res = (res << 1) | (code & 1); + code >>= 1; + } + return res; +} + +static unsigned int stbiw__zlib_countm(unsigned char *a, unsigned char *b, int limit) +{ + int i; + for (i=0; i < limit && i < 258; ++i) + if (a[i] != b[i]) break; + return i; +} + +static unsigned int stbiw__zhash(unsigned char *data) +{ + stbiw_uint32 hash = data[0] + (data[1] << 8) + (data[2] << 16); + hash ^= hash << 3; + hash += hash >> 5; + hash ^= hash << 4; + hash += hash >> 17; + hash ^= hash << 25; + hash += hash >> 6; + return hash; +} + +#define stbiw__zlib_flush() (out = stbiw__zlib_flushf(out, &bitbuf, &bitcount)) +#define stbiw__zlib_add(code,codebits) \ + (bitbuf |= (code) << bitcount, bitcount += (codebits), stbiw__zlib_flush()) +#define stbiw__zlib_huffa(b,c) stbiw__zlib_add(stbiw__zlib_bitrev(b,c),c) +// default huffman tables +#define stbiw__zlib_huff1(n) stbiw__zlib_huffa(0x30 + (n), 8) +#define stbiw__zlib_huff2(n) stbiw__zlib_huffa(0x190 + (n)-144, 9) +#define stbiw__zlib_huff3(n) stbiw__zlib_huffa(0 + (n)-256,7) +#define stbiw__zlib_huff4(n) stbiw__zlib_huffa(0xc0 + (n)-280,8) +#define stbiw__zlib_huff(n) ((n) <= 143 ? stbiw__zlib_huff1(n) : (n) <= 255 ? stbiw__zlib_huff2(n) : (n) <= 279 ? stbiw__zlib_huff3(n) : stbiw__zlib_huff4(n)) +#define stbiw__zlib_huffb(n) ((n) <= 143 ? stbiw__zlib_huff1(n) : stbiw__zlib_huff2(n)) + +#define stbiw__ZHASH 16384 + +#endif // STBIW_ZLIB_COMPRESS + +STBIWDEF unsigned char * stbi_zlib_compress(unsigned char *data, int data_len, int *out_len, int quality) +{ +#ifdef STBIW_ZLIB_COMPRESS + // user provided a zlib compress implementation, use that + return STBIW_ZLIB_COMPRESS(data, data_len, out_len, quality); +#else // use builtin + static unsigned short lengthc[] = { 3,4,5,6,7,8,9,10,11,13,15,17,19,23,27,31,35,43,51,59,67,83,99,115,131,163,195,227,258, 259 }; + static unsigned char lengtheb[]= { 0,0,0,0,0,0,0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0 }; + static unsigned short distc[] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577, 32768 }; + static unsigned char disteb[] = { 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13 }; + unsigned int bitbuf=0; + int i,j, bitcount=0; + unsigned char *out = NULL; + unsigned char ***hash_table = (unsigned char***) STBIW_MALLOC(stbiw__ZHASH * sizeof(unsigned char**)); + if (hash_table == NULL) + return NULL; + if (quality < 5) quality = 5; + + stbiw__sbpush(out, 0x78); // DEFLATE 32K window + stbiw__sbpush(out, 0x5e); // FLEVEL = 1 + stbiw__zlib_add(1,1); // BFINAL = 1 + stbiw__zlib_add(1,2); // BTYPE = 1 -- fixed huffman + + for (i=0; i < stbiw__ZHASH; ++i) + hash_table[i] = NULL; + + i=0; + while (i < data_len-3) { + // hash next 3 bytes of data to be compressed + int h = stbiw__zhash(data+i)&(stbiw__ZHASH-1), best=3; + unsigned char *bestloc = 0; + unsigned char **hlist = hash_table[h]; + int n = stbiw__sbcount(hlist); + for (j=0; j < n; ++j) { + if (hlist[j]-data > i-32768) { // if entry lies within window + int d = stbiw__zlib_countm(hlist[j], data+i, data_len-i); + if (d >= best) { best=d; bestloc=hlist[j]; } + } + } + // when hash table entry is too long, delete half the entries + if (hash_table[h] && stbiw__sbn(hash_table[h]) == 2*quality) { + STBIW_MEMMOVE(hash_table[h], hash_table[h]+quality, sizeof(hash_table[h][0])*quality); + stbiw__sbn(hash_table[h]) = quality; + } + stbiw__sbpush(hash_table[h],data+i); + + if (bestloc) { + // "lazy matching" - check match at *next* byte, and if it's better, do cur byte as literal + h = stbiw__zhash(data+i+1)&(stbiw__ZHASH-1); + hlist = hash_table[h]; + n = stbiw__sbcount(hlist); + for (j=0; j < n; ++j) { + if (hlist[j]-data > i-32767) { + int e = stbiw__zlib_countm(hlist[j], data+i+1, data_len-i-1); + if (e > best) { // if next match is better, bail on current match + bestloc = NULL; + break; + } + } + } + } + + if (bestloc) { + int d = (int) (data+i - bestloc); // distance back + STBIW_ASSERT(d <= 32767 && best <= 258); + for (j=0; best > lengthc[j+1]-1; ++j); + stbiw__zlib_huff(j+257); + if (lengtheb[j]) stbiw__zlib_add(best - lengthc[j], lengtheb[j]); + for (j=0; d > distc[j+1]-1; ++j); + stbiw__zlib_add(stbiw__zlib_bitrev(j,5),5); + if (disteb[j]) stbiw__zlib_add(d - distc[j], disteb[j]); + i += best; + } else { + stbiw__zlib_huffb(data[i]); + ++i; + } + } + // write out final bytes + for (;i < data_len; ++i) + stbiw__zlib_huffb(data[i]); + stbiw__zlib_huff(256); // end of block + // pad with 0 bits to byte boundary + while (bitcount) + stbiw__zlib_add(0,1); + + for (i=0; i < stbiw__ZHASH; ++i) + (void) stbiw__sbfree(hash_table[i]); + STBIW_FREE(hash_table); + + { + // compute adler32 on input + unsigned int s1=1, s2=0; + int blocklen = (int) (data_len % 5552); + j=0; + while (j < data_len) { + for (i=0; i < blocklen; ++i) { s1 += data[j+i]; s2 += s1; } + s1 %= 65521; s2 %= 65521; + j += blocklen; + blocklen = 5552; + } + stbiw__sbpush(out, STBIW_UCHAR(s2 >> 8)); + stbiw__sbpush(out, STBIW_UCHAR(s2)); + stbiw__sbpush(out, STBIW_UCHAR(s1 >> 8)); + stbiw__sbpush(out, STBIW_UCHAR(s1)); + } + *out_len = stbiw__sbn(out); + // make returned pointer freeable + STBIW_MEMMOVE(stbiw__sbraw(out), out, *out_len); + return (unsigned char *) stbiw__sbraw(out); +#endif // STBIW_ZLIB_COMPRESS +} + +static unsigned int stbiw__crc32(unsigned char *buffer, int len) +{ +#ifdef STBIW_CRC32 + return STBIW_CRC32(buffer, len); +#else + static unsigned int crc_table[256] = + { + 0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3, + 0x0eDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91, + 0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE, 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7, + 0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5, + 0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172, 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, + 0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59, + 0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F, + 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D, + 0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433, + 0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01, + 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E, 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457, + 0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65, + 0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB, + 0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0, 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9, + 0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F, + 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD, + 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A, 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683, + 0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1, + 0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7, + 0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC, 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5, + 0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B, + 0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79, + 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236, 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F, + 0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D, + 0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713, + 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38, 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21, + 0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777, + 0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45, + 0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2, 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB, + 0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9, + 0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF, + 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94, 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D + }; + + unsigned int crc = ~0u; + int i; + for (i=0; i < len; ++i) + crc = (crc >> 8) ^ crc_table[buffer[i] ^ (crc & 0xff)]; + return ~crc; +#endif +} + +#define stbiw__wpng4(o,a,b,c,d) ((o)[0]=STBIW_UCHAR(a),(o)[1]=STBIW_UCHAR(b),(o)[2]=STBIW_UCHAR(c),(o)[3]=STBIW_UCHAR(d),(o)+=4) +#define stbiw__wp32(data,v) stbiw__wpng4(data, (v)>>24,(v)>>16,(v)>>8,(v)); +#define stbiw__wptag(data,s) stbiw__wpng4(data, s[0],s[1],s[2],s[3]) + +static void stbiw__wpcrc(unsigned char **data, int len) +{ + unsigned int crc = stbiw__crc32(*data - len - 4, len+4); + stbiw__wp32(*data, crc); +} + +static unsigned char stbiw__paeth(int a, int b, int c) +{ + int p = a + b - c, pa = abs(p-a), pb = abs(p-b), pc = abs(p-c); + if (pa <= pb && pa <= pc) return STBIW_UCHAR(a); + if (pb <= pc) return STBIW_UCHAR(b); + return STBIW_UCHAR(c); +} + +// @OPTIMIZE: provide an option that always forces left-predict or paeth predict +static void stbiw__encode_png_line(unsigned char *pixels, int stride_bytes, int width, int height, int y, int n, int filter_type, signed char *line_buffer) +{ + static int mapping[] = { 0,1,2,3,4 }; + static int firstmap[] = { 0,1,0,5,6 }; + int *mymap = (y != 0) ? mapping : firstmap; + int i; + int type = mymap[filter_type]; + unsigned char *z = pixels + stride_bytes * (stbi__flip_vertically_on_write ? height-1-y : y); + int signed_stride = stbi__flip_vertically_on_write ? -stride_bytes : stride_bytes; + + if (type==0) { + memcpy(line_buffer, z, width*n); + return; + } + + // first loop isn't optimized since it's just one pixel + for (i = 0; i < n; ++i) { + switch (type) { + case 1: line_buffer[i] = z[i]; break; + case 2: line_buffer[i] = z[i] - z[i-signed_stride]; break; + case 3: line_buffer[i] = z[i] - (z[i-signed_stride]>>1); break; + case 4: line_buffer[i] = (signed char) (z[i] - stbiw__paeth(0,z[i-signed_stride],0)); break; + case 5: line_buffer[i] = z[i]; break; + case 6: line_buffer[i] = z[i]; break; + } + } + switch (type) { + case 1: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - z[i-n]; break; + case 2: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - z[i-signed_stride]; break; + case 3: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - ((z[i-n] + z[i-signed_stride])>>1); break; + case 4: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - stbiw__paeth(z[i-n], z[i-signed_stride], z[i-signed_stride-n]); break; + case 5: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - (z[i-n]>>1); break; + case 6: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - stbiw__paeth(z[i-n], 0,0); break; + } +} + +STBIWDEF unsigned char *stbi_write_png_to_mem(const unsigned char *pixels, int stride_bytes, int x, int y, int n, int *out_len) +{ + int force_filter = stbi_write_force_png_filter; + int ctype[5] = { -1, 0, 4, 2, 6 }; + unsigned char sig[8] = { 137,80,78,71,13,10,26,10 }; + unsigned char *out,*o, *filt, *zlib; + signed char *line_buffer; + int j,zlen; + + if (stride_bytes == 0) + stride_bytes = x * n; + + if (force_filter >= 5) { + force_filter = -1; + } + + filt = (unsigned char *) STBIW_MALLOC((x*n+1) * y); if (!filt) return 0; + line_buffer = (signed char *) STBIW_MALLOC(x * n); if (!line_buffer) { STBIW_FREE(filt); return 0; } + for (j=0; j < y; ++j) { + int filter_type; + if (force_filter > -1) { + filter_type = force_filter; + stbiw__encode_png_line((unsigned char*)(pixels), stride_bytes, x, y, j, n, force_filter, line_buffer); + } else { // Estimate the best filter by running through all of them: + int best_filter = 0, best_filter_val = 0x7fffffff, est, i; + for (filter_type = 0; filter_type < 5; filter_type++) { + stbiw__encode_png_line((unsigned char*)(pixels), stride_bytes, x, y, j, n, filter_type, line_buffer); + + // Estimate the entropy of the line using this filter; the less, the better. + est = 0; + for (i = 0; i < x*n; ++i) { + est += abs((signed char) line_buffer[i]); + } + if (est < best_filter_val) { + best_filter_val = est; + best_filter = filter_type; + } + } + if (filter_type != best_filter) { // If the last iteration already got us the best filter, don't redo it + stbiw__encode_png_line((unsigned char*)(pixels), stride_bytes, x, y, j, n, best_filter, line_buffer); + filter_type = best_filter; + } + } + // when we get here, filter_type contains the filter type, and line_buffer contains the data + filt[j*(x*n+1)] = (unsigned char) filter_type; + STBIW_MEMMOVE(filt+j*(x*n+1)+1, line_buffer, x*n); + } + STBIW_FREE(line_buffer); + zlib = stbi_zlib_compress(filt, y*( x*n+1), &zlen, stbi_write_png_compression_level); + STBIW_FREE(filt); + if (!zlib) return 0; + + // each tag requires 12 bytes of overhead + out = (unsigned char *) STBIW_MALLOC(8 + 12+13 + 12+zlen + 12); + if (!out) return 0; + *out_len = 8 + 12+13 + 12+zlen + 12; + + o=out; + STBIW_MEMMOVE(o,sig,8); o+= 8; + stbiw__wp32(o, 13); // header length + stbiw__wptag(o, "IHDR"); + stbiw__wp32(o, x); + stbiw__wp32(o, y); + *o++ = 8; + *o++ = STBIW_UCHAR(ctype[n]); + *o++ = 0; + *o++ = 0; + *o++ = 0; + stbiw__wpcrc(&o,13); + + stbiw__wp32(o, zlen); + stbiw__wptag(o, "IDAT"); + STBIW_MEMMOVE(o, zlib, zlen); + o += zlen; + STBIW_FREE(zlib); + stbiw__wpcrc(&o, zlen); + + stbiw__wp32(o,0); + stbiw__wptag(o, "IEND"); + stbiw__wpcrc(&o,0); + + STBIW_ASSERT(o == out + *out_len); + + return out; +} + +#ifndef STBI_WRITE_NO_STDIO +STBIWDEF int stbi_write_png(char const *filename, int x, int y, int comp, const void *data, int stride_bytes) +{ + FILE *f; + int len; + unsigned char *png = stbi_write_png_to_mem((const unsigned char *) data, stride_bytes, x, y, comp, &len); + if (png == NULL) return 0; + + f = stbiw__fopen(filename, "wb"); + if (!f) { STBIW_FREE(png); return 0; } + fwrite(png, 1, len, f); + fclose(f); + STBIW_FREE(png); + return 1; +} +#endif + +STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes) +{ + int len; + unsigned char *png = stbi_write_png_to_mem((const unsigned char *) data, stride_bytes, x, y, comp, &len); + if (png == NULL) return 0; + func(context, png, len); + STBIW_FREE(png); + return 1; +} + + +/* *************************************************************************** + * + * JPEG writer + * + * This is based on Jon Olick's jo_jpeg.cpp: + * public domain Simple, Minimalistic JPEG writer - http://www.jonolick.com/code.html + */ + +static const unsigned char stbiw__jpg_ZigZag[] = { 0,1,5,6,14,15,27,28,2,4,7,13,16,26,29,42,3,8,12,17,25,30,41,43,9,11,18, + 24,31,40,44,53,10,19,23,32,39,45,52,54,20,22,33,38,46,51,55,60,21,34,37,47,50,56,59,61,35,36,48,49,57,58,62,63 }; + +static void stbiw__jpg_writeBits(stbi__write_context *s, int *bitBufP, int *bitCntP, const unsigned short *bs) { + int bitBuf = *bitBufP, bitCnt = *bitCntP; + bitCnt += bs[1]; + bitBuf |= bs[0] << (24 - bitCnt); + while(bitCnt >= 8) { + unsigned char c = (bitBuf >> 16) & 255; + stbiw__putc(s, c); + if(c == 255) { + stbiw__putc(s, 0); + } + bitBuf <<= 8; + bitCnt -= 8; + } + *bitBufP = bitBuf; + *bitCntP = bitCnt; +} + +static void stbiw__jpg_DCT(float *d0p, float *d1p, float *d2p, float *d3p, float *d4p, float *d5p, float *d6p, float *d7p) { + float d0 = *d0p, d1 = *d1p, d2 = *d2p, d3 = *d3p, d4 = *d4p, d5 = *d5p, d6 = *d6p, d7 = *d7p; + float z1, z2, z3, z4, z5, z11, z13; + + float tmp0 = d0 + d7; + float tmp7 = d0 - d7; + float tmp1 = d1 + d6; + float tmp6 = d1 - d6; + float tmp2 = d2 + d5; + float tmp5 = d2 - d5; + float tmp3 = d3 + d4; + float tmp4 = d3 - d4; + + // Even part + float tmp10 = tmp0 + tmp3; // phase 2 + float tmp13 = tmp0 - tmp3; + float tmp11 = tmp1 + tmp2; + float tmp12 = tmp1 - tmp2; + + d0 = tmp10 + tmp11; // phase 3 + d4 = tmp10 - tmp11; + + z1 = (tmp12 + tmp13) * 0.707106781f; // c4 + d2 = tmp13 + z1; // phase 5 + d6 = tmp13 - z1; + + // Odd part + tmp10 = tmp4 + tmp5; // phase 2 + tmp11 = tmp5 + tmp6; + tmp12 = tmp6 + tmp7; + + // The rotator is modified from fig 4-8 to avoid extra negations. + z5 = (tmp10 - tmp12) * 0.382683433f; // c6 + z2 = tmp10 * 0.541196100f + z5; // c2-c6 + z4 = tmp12 * 1.306562965f + z5; // c2+c6 + z3 = tmp11 * 0.707106781f; // c4 + + z11 = tmp7 + z3; // phase 5 + z13 = tmp7 - z3; + + *d5p = z13 + z2; // phase 6 + *d3p = z13 - z2; + *d1p = z11 + z4; + *d7p = z11 - z4; + + *d0p = d0; *d2p = d2; *d4p = d4; *d6p = d6; +} + +static void stbiw__jpg_calcBits(int val, unsigned short bits[2]) { + int tmp1 = val < 0 ? -val : val; + val = val < 0 ? val-1 : val; + bits[1] = 1; + while(tmp1 >>= 1) { + ++bits[1]; + } + bits[0] = val & ((1<0)&&(DU[end0pos]==0); --end0pos) { + } + // end0pos = first element in reverse order !=0 + if(end0pos == 0) { + stbiw__jpg_writeBits(s, bitBuf, bitCnt, EOB); + return DU[0]; + } + for(i = 1; i <= end0pos; ++i) { + int startpos = i; + int nrzeroes; + unsigned short bits[2]; + for (; DU[i]==0 && i<=end0pos; ++i) { + } + nrzeroes = i-startpos; + if ( nrzeroes >= 16 ) { + int lng = nrzeroes>>4; + int nrmarker; + for (nrmarker=1; nrmarker <= lng; ++nrmarker) + stbiw__jpg_writeBits(s, bitBuf, bitCnt, M16zeroes); + nrzeroes &= 15; + } + stbiw__jpg_calcBits(DU[i], bits); + stbiw__jpg_writeBits(s, bitBuf, bitCnt, HTAC[(nrzeroes<<4)+bits[1]]); + stbiw__jpg_writeBits(s, bitBuf, bitCnt, bits); + } + if(end0pos != 63) { + stbiw__jpg_writeBits(s, bitBuf, bitCnt, EOB); + } + return DU[0]; +} + +static int stbi_write_jpg_core(stbi__write_context *s, int width, int height, int comp, const void* data, int quality) { + // Constants that don't pollute global namespace + static const unsigned char std_dc_luminance_nrcodes[] = {0,0,1,5,1,1,1,1,1,1,0,0,0,0,0,0,0}; + static const unsigned char std_dc_luminance_values[] = {0,1,2,3,4,5,6,7,8,9,10,11}; + static const unsigned char std_ac_luminance_nrcodes[] = {0,0,2,1,3,3,2,4,3,5,5,4,4,0,0,1,0x7d}; + static const unsigned char std_ac_luminance_values[] = { + 0x01,0x02,0x03,0x00,0x04,0x11,0x05,0x12,0x21,0x31,0x41,0x06,0x13,0x51,0x61,0x07,0x22,0x71,0x14,0x32,0x81,0x91,0xa1,0x08, + 0x23,0x42,0xb1,0xc1,0x15,0x52,0xd1,0xf0,0x24,0x33,0x62,0x72,0x82,0x09,0x0a,0x16,0x17,0x18,0x19,0x1a,0x25,0x26,0x27,0x28, + 0x29,0x2a,0x34,0x35,0x36,0x37,0x38,0x39,0x3a,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x53,0x54,0x55,0x56,0x57,0x58,0x59, + 0x5a,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x83,0x84,0x85,0x86,0x87,0x88,0x89, + 0x8a,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9a,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xb2,0xb3,0xb4,0xb5,0xb6, + 0xb7,0xb8,0xb9,0xba,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,0xc8,0xc9,0xca,0xd2,0xd3,0xd4,0xd5,0xd6,0xd7,0xd8,0xd9,0xda,0xe1,0xe2, + 0xe3,0xe4,0xe5,0xe6,0xe7,0xe8,0xe9,0xea,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa + }; + static const unsigned char std_dc_chrominance_nrcodes[] = {0,0,3,1,1,1,1,1,1,1,1,1,0,0,0,0,0}; + static const unsigned char std_dc_chrominance_values[] = {0,1,2,3,4,5,6,7,8,9,10,11}; + static const unsigned char std_ac_chrominance_nrcodes[] = {0,0,2,1,2,4,4,3,4,7,5,4,4,0,1,2,0x77}; + static const unsigned char std_ac_chrominance_values[] = { + 0x00,0x01,0x02,0x03,0x11,0x04,0x05,0x21,0x31,0x06,0x12,0x41,0x51,0x07,0x61,0x71,0x13,0x22,0x32,0x81,0x08,0x14,0x42,0x91, + 0xa1,0xb1,0xc1,0x09,0x23,0x33,0x52,0xf0,0x15,0x62,0x72,0xd1,0x0a,0x16,0x24,0x34,0xe1,0x25,0xf1,0x17,0x18,0x19,0x1a,0x26, + 0x27,0x28,0x29,0x2a,0x35,0x36,0x37,0x38,0x39,0x3a,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x53,0x54,0x55,0x56,0x57,0x58, + 0x59,0x5a,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x82,0x83,0x84,0x85,0x86,0x87, + 0x88,0x89,0x8a,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9a,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xb2,0xb3,0xb4, + 0xb5,0xb6,0xb7,0xb8,0xb9,0xba,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,0xc8,0xc9,0xca,0xd2,0xd3,0xd4,0xd5,0xd6,0xd7,0xd8,0xd9,0xda, + 0xe2,0xe3,0xe4,0xe5,0xe6,0xe7,0xe8,0xe9,0xea,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa + }; + // Huffman tables + static const unsigned short YDC_HT[256][2] = { {0,2},{2,3},{3,3},{4,3},{5,3},{6,3},{14,4},{30,5},{62,6},{126,7},{254,8},{510,9}}; + static const unsigned short UVDC_HT[256][2] = { {0,2},{1,2},{2,2},{6,3},{14,4},{30,5},{62,6},{126,7},{254,8},{510,9},{1022,10},{2046,11}}; + static const unsigned short YAC_HT[256][2] = { + {10,4},{0,2},{1,2},{4,3},{11,4},{26,5},{120,7},{248,8},{1014,10},{65410,16},{65411,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {12,4},{27,5},{121,7},{502,9},{2038,11},{65412,16},{65413,16},{65414,16},{65415,16},{65416,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {28,5},{249,8},{1015,10},{4084,12},{65417,16},{65418,16},{65419,16},{65420,16},{65421,16},{65422,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {58,6},{503,9},{4085,12},{65423,16},{65424,16},{65425,16},{65426,16},{65427,16},{65428,16},{65429,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {59,6},{1016,10},{65430,16},{65431,16},{65432,16},{65433,16},{65434,16},{65435,16},{65436,16},{65437,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {122,7},{2039,11},{65438,16},{65439,16},{65440,16},{65441,16},{65442,16},{65443,16},{65444,16},{65445,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {123,7},{4086,12},{65446,16},{65447,16},{65448,16},{65449,16},{65450,16},{65451,16},{65452,16},{65453,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {250,8},{4087,12},{65454,16},{65455,16},{65456,16},{65457,16},{65458,16},{65459,16},{65460,16},{65461,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {504,9},{32704,15},{65462,16},{65463,16},{65464,16},{65465,16},{65466,16},{65467,16},{65468,16},{65469,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {505,9},{65470,16},{65471,16},{65472,16},{65473,16},{65474,16},{65475,16},{65476,16},{65477,16},{65478,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {506,9},{65479,16},{65480,16},{65481,16},{65482,16},{65483,16},{65484,16},{65485,16},{65486,16},{65487,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {1017,10},{65488,16},{65489,16},{65490,16},{65491,16},{65492,16},{65493,16},{65494,16},{65495,16},{65496,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {1018,10},{65497,16},{65498,16},{65499,16},{65500,16},{65501,16},{65502,16},{65503,16},{65504,16},{65505,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {2040,11},{65506,16},{65507,16},{65508,16},{65509,16},{65510,16},{65511,16},{65512,16},{65513,16},{65514,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {65515,16},{65516,16},{65517,16},{65518,16},{65519,16},{65520,16},{65521,16},{65522,16},{65523,16},{65524,16},{0,0},{0,0},{0,0},{0,0},{0,0}, + {2041,11},{65525,16},{65526,16},{65527,16},{65528,16},{65529,16},{65530,16},{65531,16},{65532,16},{65533,16},{65534,16},{0,0},{0,0},{0,0},{0,0},{0,0} + }; + static const unsigned short UVAC_HT[256][2] = { + {0,2},{1,2},{4,3},{10,4},{24,5},{25,5},{56,6},{120,7},{500,9},{1014,10},{4084,12},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {11,4},{57,6},{246,8},{501,9},{2038,11},{4085,12},{65416,16},{65417,16},{65418,16},{65419,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {26,5},{247,8},{1015,10},{4086,12},{32706,15},{65420,16},{65421,16},{65422,16},{65423,16},{65424,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {27,5},{248,8},{1016,10},{4087,12},{65425,16},{65426,16},{65427,16},{65428,16},{65429,16},{65430,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {58,6},{502,9},{65431,16},{65432,16},{65433,16},{65434,16},{65435,16},{65436,16},{65437,16},{65438,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {59,6},{1017,10},{65439,16},{65440,16},{65441,16},{65442,16},{65443,16},{65444,16},{65445,16},{65446,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {121,7},{2039,11},{65447,16},{65448,16},{65449,16},{65450,16},{65451,16},{65452,16},{65453,16},{65454,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {122,7},{2040,11},{65455,16},{65456,16},{65457,16},{65458,16},{65459,16},{65460,16},{65461,16},{65462,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {249,8},{65463,16},{65464,16},{65465,16},{65466,16},{65467,16},{65468,16},{65469,16},{65470,16},{65471,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {503,9},{65472,16},{65473,16},{65474,16},{65475,16},{65476,16},{65477,16},{65478,16},{65479,16},{65480,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {504,9},{65481,16},{65482,16},{65483,16},{65484,16},{65485,16},{65486,16},{65487,16},{65488,16},{65489,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {505,9},{65490,16},{65491,16},{65492,16},{65493,16},{65494,16},{65495,16},{65496,16},{65497,16},{65498,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {506,9},{65499,16},{65500,16},{65501,16},{65502,16},{65503,16},{65504,16},{65505,16},{65506,16},{65507,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {2041,11},{65508,16},{65509,16},{65510,16},{65511,16},{65512,16},{65513,16},{65514,16},{65515,16},{65516,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {16352,14},{65517,16},{65518,16},{65519,16},{65520,16},{65521,16},{65522,16},{65523,16},{65524,16},{65525,16},{0,0},{0,0},{0,0},{0,0},{0,0}, + {1018,10},{32707,15},{65526,16},{65527,16},{65528,16},{65529,16},{65530,16},{65531,16},{65532,16},{65533,16},{65534,16},{0,0},{0,0},{0,0},{0,0},{0,0} + }; + static const int YQT[] = {16,11,10,16,24,40,51,61,12,12,14,19,26,58,60,55,14,13,16,24,40,57,69,56,14,17,22,29,51,87,80,62,18,22, + 37,56,68,109,103,77,24,35,55,64,81,104,113,92,49,64,78,87,103,121,120,101,72,92,95,98,112,100,103,99}; + static const int UVQT[] = {17,18,24,47,99,99,99,99,18,21,26,66,99,99,99,99,24,26,56,99,99,99,99,99,47,66,99,99,99,99,99,99, + 99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99}; + static const float aasf[] = { 1.0f * 2.828427125f, 1.387039845f * 2.828427125f, 1.306562965f * 2.828427125f, 1.175875602f * 2.828427125f, + 1.0f * 2.828427125f, 0.785694958f * 2.828427125f, 0.541196100f * 2.828427125f, 0.275899379f * 2.828427125f }; + + int row, col, i, k, subsample; + float fdtbl_Y[64], fdtbl_UV[64]; + unsigned char YTable[64], UVTable[64]; + + if(!data || !width || !height || comp > 4 || comp < 1) { + return 0; + } + + quality = quality ? quality : 90; + subsample = quality <= 90 ? 1 : 0; + quality = quality < 1 ? 1 : quality > 100 ? 100 : quality; + quality = quality < 50 ? 5000 / quality : 200 - quality * 2; + + for(i = 0; i < 64; ++i) { + int uvti, yti = (YQT[i]*quality+50)/100; + YTable[stbiw__jpg_ZigZag[i]] = (unsigned char) (yti < 1 ? 1 : yti > 255 ? 255 : yti); + uvti = (UVQT[i]*quality+50)/100; + UVTable[stbiw__jpg_ZigZag[i]] = (unsigned char) (uvti < 1 ? 1 : uvti > 255 ? 255 : uvti); + } + + for(row = 0, k = 0; row < 8; ++row) { + for(col = 0; col < 8; ++col, ++k) { + fdtbl_Y[k] = 1 / (YTable [stbiw__jpg_ZigZag[k]] * aasf[row] * aasf[col]); + fdtbl_UV[k] = 1 / (UVTable[stbiw__jpg_ZigZag[k]] * aasf[row] * aasf[col]); + } + } + + // Write Headers + { + static const unsigned char head0[] = { 0xFF,0xD8,0xFF,0xE0,0,0x10,'J','F','I','F',0,1,1,0,0,1,0,1,0,0,0xFF,0xDB,0,0x84,0 }; + static const unsigned char head2[] = { 0xFF,0xDA,0,0xC,3,1,0,2,0x11,3,0x11,0,0x3F,0 }; + const unsigned char head1[] = { 0xFF,0xC0,0,0x11,8,(unsigned char)(height>>8),STBIW_UCHAR(height),(unsigned char)(width>>8),STBIW_UCHAR(width), + 3,1,(unsigned char)(subsample?0x22:0x11),0,2,0x11,1,3,0x11,1,0xFF,0xC4,0x01,0xA2,0 }; + s->func(s->context, (void*)head0, sizeof(head0)); + s->func(s->context, (void*)YTable, sizeof(YTable)); + stbiw__putc(s, 1); + s->func(s->context, UVTable, sizeof(UVTable)); + s->func(s->context, (void*)head1, sizeof(head1)); + s->func(s->context, (void*)(std_dc_luminance_nrcodes+1), sizeof(std_dc_luminance_nrcodes)-1); + s->func(s->context, (void*)std_dc_luminance_values, sizeof(std_dc_luminance_values)); + stbiw__putc(s, 0x10); // HTYACinfo + s->func(s->context, (void*)(std_ac_luminance_nrcodes+1), sizeof(std_ac_luminance_nrcodes)-1); + s->func(s->context, (void*)std_ac_luminance_values, sizeof(std_ac_luminance_values)); + stbiw__putc(s, 1); // HTUDCinfo + s->func(s->context, (void*)(std_dc_chrominance_nrcodes+1), sizeof(std_dc_chrominance_nrcodes)-1); + s->func(s->context, (void*)std_dc_chrominance_values, sizeof(std_dc_chrominance_values)); + stbiw__putc(s, 0x11); // HTUACinfo + s->func(s->context, (void*)(std_ac_chrominance_nrcodes+1), sizeof(std_ac_chrominance_nrcodes)-1); + s->func(s->context, (void*)std_ac_chrominance_values, sizeof(std_ac_chrominance_values)); + s->func(s->context, (void*)head2, sizeof(head2)); + } + + // Encode 8x8 macroblocks + { + static const unsigned short fillBits[] = {0x7F, 7}; + int DCY=0, DCU=0, DCV=0; + int bitBuf=0, bitCnt=0; + // comp == 2 is grey+alpha (alpha is ignored) + int ofsG = comp > 2 ? 1 : 0, ofsB = comp > 2 ? 2 : 0; + const unsigned char *dataR = (const unsigned char *)data; + const unsigned char *dataG = dataR + ofsG; + const unsigned char *dataB = dataR + ofsB; + int x, y, pos; + if(subsample) { + for(y = 0; y < height; y += 16) { + for(x = 0; x < width; x += 16) { + float Y[256], U[256], V[256]; + for(row = y, pos = 0; row < y+16; ++row) { + // row >= height => use last input row + int clamped_row = (row < height) ? row : height - 1; + int base_p = (stbi__flip_vertically_on_write ? (height-1-clamped_row) : clamped_row)*width*comp; + for(col = x; col < x+16; ++col, ++pos) { + // if col >= width => use pixel from last input column + int p = base_p + ((col < width) ? col : (width-1))*comp; + float r = dataR[p], g = dataG[p], b = dataB[p]; + Y[pos]= +0.29900f*r + 0.58700f*g + 0.11400f*b - 128; + U[pos]= -0.16874f*r - 0.33126f*g + 0.50000f*b; + V[pos]= +0.50000f*r - 0.41869f*g - 0.08131f*b; + } + } + DCY = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, Y+0, 16, fdtbl_Y, DCY, YDC_HT, YAC_HT); + DCY = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, Y+8, 16, fdtbl_Y, DCY, YDC_HT, YAC_HT); + DCY = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, Y+128, 16, fdtbl_Y, DCY, YDC_HT, YAC_HT); + DCY = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, Y+136, 16, fdtbl_Y, DCY, YDC_HT, YAC_HT); + + // subsample U,V + { + float subU[64], subV[64]; + int yy, xx; + for(yy = 0, pos = 0; yy < 8; ++yy) { + for(xx = 0; xx < 8; ++xx, ++pos) { + int j = yy*32+xx*2; + subU[pos] = (U[j+0] + U[j+1] + U[j+16] + U[j+17]) * 0.25f; + subV[pos] = (V[j+0] + V[j+1] + V[j+16] + V[j+17]) * 0.25f; + } + } + DCU = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, subU, 8, fdtbl_UV, DCU, UVDC_HT, UVAC_HT); + DCV = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, subV, 8, fdtbl_UV, DCV, UVDC_HT, UVAC_HT); + } + } + } + } else { + for(y = 0; y < height; y += 8) { + for(x = 0; x < width; x += 8) { + float Y[64], U[64], V[64]; + for(row = y, pos = 0; row < y+8; ++row) { + // row >= height => use last input row + int clamped_row = (row < height) ? row : height - 1; + int base_p = (stbi__flip_vertically_on_write ? (height-1-clamped_row) : clamped_row)*width*comp; + for(col = x; col < x+8; ++col, ++pos) { + // if col >= width => use pixel from last input column + int p = base_p + ((col < width) ? col : (width-1))*comp; + float r = dataR[p], g = dataG[p], b = dataB[p]; + Y[pos]= +0.29900f*r + 0.58700f*g + 0.11400f*b - 128; + U[pos]= -0.16874f*r - 0.33126f*g + 0.50000f*b; + V[pos]= +0.50000f*r - 0.41869f*g - 0.08131f*b; + } + } + + DCY = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, Y, 8, fdtbl_Y, DCY, YDC_HT, YAC_HT); + DCU = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, U, 8, fdtbl_UV, DCU, UVDC_HT, UVAC_HT); + DCV = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, V, 8, fdtbl_UV, DCV, UVDC_HT, UVAC_HT); + } + } + } + + // Do the bit alignment of the EOI marker + stbiw__jpg_writeBits(s, &bitBuf, &bitCnt, fillBits); + } + + // EOI + stbiw__putc(s, 0xFF); + stbiw__putc(s, 0xD9); + + return 1; +} + +STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality) +{ + stbi__write_context s = { 0 }; + stbi__start_write_callbacks(&s, func, context); + return stbi_write_jpg_core(&s, x, y, comp, (void *) data, quality); +} + + +#ifndef STBI_WRITE_NO_STDIO +STBIWDEF int stbi_write_jpg(char const *filename, int x, int y, int comp, const void *data, int quality) +{ + stbi__write_context s = { 0 }; + if (stbi__start_write_file(&s,filename)) { + int r = stbi_write_jpg_core(&s, x, y, comp, data, quality); + stbi__end_write_file(&s); + return r; + } else + return 0; +} +#endif + +#endif // STB_IMAGE_WRITE_IMPLEMENTATION + +/* Revision history + 1.14 (2020-02-02) updated JPEG writer to downsample chroma channels + 1.13 + 1.12 + 1.11 (2019-08-11) + + 1.10 (2019-02-07) + support utf8 filenames in Windows; fix warnings and platform ifdefs + 1.09 (2018-02-11) + fix typo in zlib quality API, improve STB_I_W_STATIC in C++ + 1.08 (2018-01-29) + add stbi__flip_vertically_on_write, external zlib, zlib quality, choose PNG filter + 1.07 (2017-07-24) + doc fix + 1.06 (2017-07-23) + writing JPEG (using Jon Olick's code) + 1.05 ??? + 1.04 (2017-03-03) + monochrome BMP expansion + 1.03 ??? + 1.02 (2016-04-02) + avoid allocating large structures on the stack + 1.01 (2016-01-16) + STBIW_REALLOC_SIZED: support allocators with no realloc support + avoid race-condition in crc initialization + minor compile issues + 1.00 (2015-09-14) + installable file IO function + 0.99 (2015-09-13) + warning fixes; TGA rle support + 0.98 (2015-04-08) + added STBIW_MALLOC, STBIW_ASSERT etc + 0.97 (2015-01-18) + fixed HDR asserts, rewrote HDR rle logic + 0.96 (2015-01-17) + add HDR output + fix monochrome BMP + 0.95 (2014-08-17) + add monochrome TGA output + 0.94 (2014-05-31) + rename private functions to avoid conflicts with stb_image.h + 0.93 (2014-05-27) + warning fixes + 0.92 (2010-08-01) + casts to unsigned char to fix warnings + 0.91 (2010-07-17) + first public release + 0.90 first internal release +*/ + +/* +------------------------------------------------------------------------------ +This software is available under 2 licenses -- choose whichever you prefer. +------------------------------------------------------------------------------ +ALTERNATIVE A - MIT License +Copyright (c) 2017 Sean Barrett +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +------------------------------------------------------------------------------ +ALTERNATIVE B - Public Domain (www.unlicense.org) +This is free and unencumbered software released into the public domain. +Anyone is free to copy, modify, publish, use, compile, sell, or distribute this +software, either in source code form or as a compiled binary, for any purpose, +commercial or non-commercial, and by any means. +In jurisdictions that recognize copyright laws, the author or authors of this +software dedicate any and all copyright interest in the software to the public +domain. We make this dedication for the benefit of the public at large and to +the detriment of our heirs and successors. We intend this dedication to be an +overt act of relinquishment in perpetuity of all present and future rights to +this software under copyright law. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +------------------------------------------------------------------------------ +*/ diff --git a/ui_api.cpp b/ui_api.cpp index 99d7de4..c0cf827 100644 --- a/ui_api.cpp +++ b/ui_api.cpp @@ -6,6 +6,7 @@ #include "ui_local.h" +#include #include /* OnFrame() @@ -100,10 +101,10 @@ static int l_SetCallback(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: SetCallback(name[, func])"); - ui->LAssert(L, lua_isstring(L, 1), "SetCallback() argument 1: expected string, got %t", 1); + ui->LAssert(L, lua_isstring(L, 1), "SetCallback() argument 1: expected string, got %s", luaL_typename(L, 1)); lua_pushvalue(L, 1); if (n >= 2) { - ui->LAssert(L, lua_isfunction(L, 2) || lua_isnil(L, 2), "SetCallback() argument 2: expected function or nil, got %t", 2); + ui->LAssert(L, lua_isfunction(L, 2) || lua_isnil(L, 2), "SetCallback() argument 2: expected function or nil, got %s", luaL_typename(L, 2)); lua_pushvalue(L, 2); } else { lua_pushnil(L); @@ -117,7 +118,7 @@ static int l_GetCallback(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: GetCallback(name)"); - ui->LAssert(L, lua_isstring(L, 1), "GetCallback() argument 1: expected string, got %t", 1); + ui->LAssert(L, lua_isstring(L, 1), "GetCallback() argument 1: expected string, got %s", luaL_typename(L, 1)); lua_pushvalue(L, 1); lua_gettable(L, lua_upvalueindex(1)); return 1; @@ -129,7 +130,7 @@ static int l_SetMainObject(lua_State* L) int n = lua_gettop(L); lua_pushstring(L, "MainObject"); if (n >= 1) { - ui->LAssert(L, lua_istable(L, 1) || lua_isnil(L, 1), "SetMainObject() argument 1: expected table or nil, got %t", 1); + ui->LAssert(L, lua_istable(L, 1) || lua_isnil(L, 1), "SetMainObject() argument 1: expected table or nil, got %s", luaL_typename(L, 1)); lua_pushvalue(L, 1); } else { lua_pushnil(L); @@ -181,13 +182,13 @@ static int l_imgHandleLoad(lua_State* L) imgHandle_s* imgHandle = GetImgHandle(L, ui, "Load", false); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: imgHandle:Load(fileName[, flag1[, flag2...]])"); - ui->LAssert(L, lua_isstring(L, 1), "imgHandle:Load() argument 1: expected string, got %t", 1); + ui->LAssert(L, lua_isstring(L, 1), "imgHandle:Load() argument 1: expected string, got %s", luaL_typename(L, 1)); const char* fileName = lua_tostring(L, 1); char fullFileName[512]; if (strchr(fileName, ':') || !ui->scriptWorkDir) { strcpy(fullFileName, fileName); } else { - sprintf(fullFileName, "%s\\%s", ui->scriptWorkDir, fileName); + sprintf(fullFileName, "%s/%s", ui->scriptWorkDir, fileName); } delete imgHandle->hnd; int flags = TF_NOMIPMAP; @@ -197,7 +198,7 @@ static int l_imgHandleLoad(lua_State* L) } const char* flag = lua_tostring(L, f); if ( !strcmp(flag, "ASYNC") ) { - flags|= TF_ASYNC; + // Async texture loading removed } else if ( !strcmp(flag, "CLAMP") ) { flags|= TF_CLAMP; } else if ( !strcmp(flag, "MIPMAP") ) { @@ -245,7 +246,7 @@ static int l_imgHandleSetLoadingPriority(lua_State* L) imgHandle_s* imgHandle = GetImgHandle(L, ui, "SetLoadingPriority", true); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: imgHandle:SetLoadingPriority(pri)"); - ui->LAssert(L, lua_isnumber(L, 1), "imgHandle:SetLoadingPriority() argument 1: expected number, got %t", 1); + ui->LAssert(L, lua_isnumber(L, 1), "imgHandle:SetLoadingPriority() argument 1: expected number, got %s", luaL_typename(L, 1)); ui->renderer->SetShaderLoadingPriority(imgHandle->hnd, (int)lua_tointeger(L, 1)); return 0; } @@ -288,11 +289,11 @@ static int l_SetClearColor(lua_State* L) ui->LAssert(L, n >= 3, "Usage: SetClearColor(red, green, blue[, alpha])"); col4_t color; for (int i = 1; i <= 3; i++) { - ui->LAssert(L, lua_isnumber(L, i), "SetClearColor() argument %d: expected number, got %t", i, i); + ui->LAssert(L, lua_isnumber(L, i), "SetClearColor() argument %d: expected number, got %s", i, luaL_typename(L, i)); color[i-1] = (float)lua_tonumber(L, i); } if (n >= 4 && !lua_isnil(L, 4)) { - ui->LAssert(L, lua_isnumber(L, 4), "SetClearColor() argument 4: expected number or nil, got %t", 4); + ui->LAssert(L, lua_isnumber(L, 4), "SetClearColor() argument 4: expected number or nil, got %s", luaL_typename(L, 4)); color[3] = (float)lua_tonumber(L, 4); } else { color[3] = 1.0; @@ -308,9 +309,9 @@ static int l_SetDrawLayer(lua_State* L) ui->LAssert(L, ui->renderEnable, "SetDrawLayer() called outside of OnFrame"); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: SetDrawLayer({layer|nil}[, subLayer])"); - ui->LAssert(L, lua_isnumber(L, 1) || lua_isnil(L, 1), "SetDrawLayer() argument 1: expected number or nil, got %t", 1); + ui->LAssert(L, lua_isnumber(L, 1) || lua_isnil(L, 1), "SetDrawLayer() argument 1: expected number or nil, got %s", luaL_typename(L, 1)); if (n >= 2) { - ui->LAssert(L, lua_isnumber(L, 2), "SetDrawLayer() argument 2: expected number, got %t", 2); + ui->LAssert(L, lua_isnumber(L, 2), "SetDrawLayer() argument 2: expected number, got %s", luaL_typename(L, 2)); } if (lua_isnil(L, 1)) { ui->LAssert(L, n >= 2, "SetDrawLayer(): must provide subLayer if layer is nil"); @@ -339,7 +340,7 @@ static int l_SetViewport(lua_State* L) if (n) { ui->LAssert(L, n >= 4, "Usage: SetViewport([x, y, width, height])"); for (int i = 1; i <= 4; i++) { - ui->LAssert(L, lua_isnumber(L, i), "SetViewport() argument %d: expected number, got %t", i, i); + ui->LAssert(L, lua_isnumber(L, i), "SetViewport() argument %d: expected number, got %s", i, luaL_typename(L, i)); } ui->renderer->SetViewport((int)lua_tointeger(L, 1), (int)lua_tointeger(L, 2), (int)lua_tointeger(L, 3), (int)lua_tointeger(L, 4)); } else { @@ -375,11 +376,11 @@ static int l_SetDrawColor(lua_State* L) } else { ui->LAssert(L, n >= 3, "Usage: SetDrawColor(red, green, blue[, alpha]) or SetDrawColor(escapeStr)"); for (int i = 1; i <= 3; i++) { - ui->LAssert(L, lua_isnumber(L, i), "SetDrawColor() argument %d: expected number, got %t", i, i); + ui->LAssert(L, lua_isnumber(L, i), "SetDrawColor() argument %d: expected number, got %s", i, luaL_typename(L, i)); color[i-1] = (float)lua_tonumber(L, i); } if (n >= 4 && !lua_isnil(L, 4)) { - ui->LAssert(L, lua_isnumber(L, 4), "SetDrawColor() argument 4: expected number or nil, got %t", 4); + ui->LAssert(L, lua_isnumber(L, 4), "SetDrawColor() argument 4: expected number or nil, got %s", luaL_typename(L, 4)); color[3] = (float)lua_tonumber(L, 4); } else { color[3] = 1.0; @@ -396,7 +397,7 @@ static int l_DrawImage(lua_State* L) ui->LAssert(L, ui->renderEnable, "DrawImage() called outside of OnFrame"); int n = lua_gettop(L); ui->LAssert(L, n >= 5, "Usage: DrawImage({imgHandle|nil}, left, top, width, height[, tcLeft, tcTop, tcRight, tcBottom])"); - ui->LAssert(L, lua_isnil(L, 1) || ui->IsUserData(L, 1, "uiimghandlemeta"), "DrawImage() argument 1: expected image handle or nil, got %t", 1); + ui->LAssert(L, lua_isnil(L, 1) || ui->IsUserData(L, 1, "uiimghandlemeta"), "DrawImage() argument 1: expected image handle or nil, got %s", luaL_typename(L, 1)); r_shaderHnd_c* hnd = NULL; if ( !lua_isnil(L, 1) ) { imgHandle_s* imgHandle = (imgHandle_s*)lua_touserdata(L, 1); @@ -407,13 +408,13 @@ static int l_DrawImage(lua_State* L) if (n > 5) { ui->LAssert(L, n >= 9, "DrawImage(): incomplete set of texture coordinates provided"); for (int i = 2; i <= 9; i++) { - ui->LAssert(L, lua_isnumber(L, i), "DrawImage() argument %d: expected number, got %t", i, i); + ui->LAssert(L, lua_isnumber(L, i), "DrawImage() argument %d: expected number, got %s", i, luaL_typename(L, i)); arg[i-2] = (float)lua_tonumber(L, i); } ui->renderer->DrawImage(hnd, arg[0], arg[1], arg[2], arg[3], arg[4], arg[5], arg[6], arg[7]); } else { for (int i = 2; i <= 5; i++) { - ui->LAssert(L, lua_isnumber(L, i), "DrawImage() argument %d: expected number, got %t", i, i); + ui->LAssert(L, lua_isnumber(L, i), "DrawImage() argument %d: expected number, got %s", i, luaL_typename(L, i)); arg[i-2] = (float)lua_tonumber(L, i); } ui->renderer->DrawImage(hnd, arg[0], arg[1], arg[2], arg[3]); @@ -428,7 +429,7 @@ static int l_DrawImageQuad(lua_State* L) ui->LAssert(L, ui->renderEnable, "DrawImageQuad() called outside of OnFrame"); int n = lua_gettop(L); ui->LAssert(L, n >= 9, "Usage: DrawImageQuad({imgHandle|nil}, x1, y1, x2, y2, x3, y3, x4, y4[, s1, t1, s2, t2, s3, t3, s4, t4])"); - ui->LAssert(L, lua_isnil(L, 1) || ui->IsUserData(L, 1, "uiimghandlemeta"), "DrawImageQuad() argument 1: expected image handle or nil, got %t", 1); + ui->LAssert(L, lua_isnil(L, 1) || ui->IsUserData(L, 1, "uiimghandlemeta"), "DrawImageQuad() argument 1: expected image handle or nil, got %s", luaL_typename(L, 1)); r_shaderHnd_c* hnd = NULL; if ( !lua_isnil(L, 1) ) { imgHandle_s* imgHandle = (imgHandle_s*)lua_touserdata(L, 1); @@ -439,13 +440,13 @@ static int l_DrawImageQuad(lua_State* L) if (n > 9) { ui->LAssert(L, n >= 17, "DrawImageQuad(): incomplete set of texture coordinates provided"); for (int i = 2; i <= 17; i++) { - ui->LAssert(L, lua_isnumber(L, i), "DrawImageQuad() argument %d: expected number, got %t", i, i); + ui->LAssert(L, lua_isnumber(L, i), "DrawImageQuad() argument %d: expected number, got %s", i, luaL_typename(L, i)); arg[i-2] = (float)lua_tonumber(L, i); } ui->renderer->DrawImageQuad(hnd, arg[0], arg[1], arg[2], arg[3], arg[4], arg[5], arg[6], arg[7], arg[8], arg[9], arg[10], arg[11], arg[12], arg[13], arg[14], arg[15]); } else { for (int i = 2; i <= 9; i++) { - ui->LAssert(L, lua_isnumber(L, i), "DrawImageQuad() argument %d: expected number, got %t", i, i); + ui->LAssert(L, lua_isnumber(L, i), "DrawImageQuad() argument %d: expected number, got %s", i, luaL_typename(L, i)); arg[i-2] = (float)lua_tonumber(L, i); } ui->renderer->DrawImageQuad(hnd, arg[0], arg[1], arg[2], arg[3], arg[4], arg[5], arg[6], arg[7]); @@ -460,12 +461,12 @@ static int l_DrawString(lua_State* L) ui->LAssert(L, ui->renderEnable, "DrawString() called outside of OnFrame"); int n = lua_gettop(L); ui->LAssert(L, n >= 6, "Usage: DrawString(left, top, align, height, font, text)"); - ui->LAssert(L, lua_isnumber(L, 1), "DrawString() argument 1: expected number, got %t", 1); - ui->LAssert(L, lua_isnumber(L, 2), "DrawString() argument 2: expected number, got %t", 2); - ui->LAssert(L, lua_isstring(L, 3) || lua_isnil(L, 3), "DrawString() argument 3: expected string or nil, got %t", 3); - ui->LAssert(L, lua_isnumber(L, 4), "DrawString() argument 4: expected number, got %t", 4); - ui->LAssert(L, lua_isstring(L, 5), "DrawString() argument 5: expected string, got %t", 5); - ui->LAssert(L, lua_isstring(L, 6), "DrawString() argument 6: expected string, got %t", 6); + ui->LAssert(L, lua_isnumber(L, 1), "DrawString() argument 1: expected number, got %s", luaL_typename(L, 1)); + ui->LAssert(L, lua_isnumber(L, 2), "DrawString() argument 2: expected number, got %s", luaL_typename(L, 2)); + ui->LAssert(L, lua_isstring(L, 3) || lua_isnil(L, 3), "DrawString() argument 3: expected string or nil, got %s", luaL_typename(L, 3)); + ui->LAssert(L, lua_isnumber(L, 4), "DrawString() argument 4: expected number, got %s", luaL_typename(L, 4)); + ui->LAssert(L, lua_isstring(L, 5), "DrawString() argument 5: expected string, got %s", luaL_typename(L, 5)); + ui->LAssert(L, lua_isstring(L, 6), "DrawString() argument 6: expected string, got %s", luaL_typename(L, 6)); static const char* alignMap[6] = { "LEFT", "CENTER", "RIGHT", "CENTER_X", "RIGHT_X", NULL }; static const char* fontMap[4] = { "FIXED", "VAR", "VAR BOLD", NULL }; ui->renderer->DrawString( @@ -481,9 +482,9 @@ static int l_DrawStringWidth(lua_State* L) ui->LAssert(L, ui->renderer != NULL, "Renderer is not initialised"); int n = lua_gettop(L); ui->LAssert(L, n >= 3, "Usage: DrawStringWidth(height, font, text)"); - ui->LAssert(L, lua_isnumber(L, 1), "DrawStringWidth() argument 1: expected number, got %t", 1); - ui->LAssert(L, lua_isstring(L, 2), "DrawStringWidth() argument 2: expected string, got %t", 2); - ui->LAssert(L, lua_isstring(L, 3), "DrawStringWidth() argument 3: expected string, got %t", 3); + ui->LAssert(L, lua_isnumber(L, 1), "DrawStringWidth() argument 1: expected number, got %s", luaL_typename(L, 1)); + ui->LAssert(L, lua_isstring(L, 2), "DrawStringWidth() argument 2: expected string, got %s", luaL_typename(L, 2)); + ui->LAssert(L, lua_isstring(L, 3), "DrawStringWidth() argument 3: expected string, got %s", luaL_typename(L, 3)); static const char* fontMap[4] = { "FIXED", "VAR", "VAR BOLD", NULL }; lua_pushinteger(L, ui->renderer->DrawStringWidth((int)lua_tointeger(L, 1), luaL_checkoption(L, 2, "FIXED", fontMap), lua_tostring(L, 3))); return 1; @@ -495,11 +496,11 @@ static int l_DrawStringCursorIndex(lua_State* L) ui->LAssert(L, ui->renderer != NULL, "Renderer is not initialised"); int n = lua_gettop(L); ui->LAssert(L, n >= 5, "Usage: DrawStringCursorIndex(height, font, text, cursorX, cursorY)"); - ui->LAssert(L, lua_isnumber(L, 1), "DrawStringCursorIndex() argument 1: expected number, got %t", 1); - ui->LAssert(L, lua_isstring(L, 2), "DrawStringCursorIndex() argument 2: expected string, got %t", 2); - ui->LAssert(L, lua_isstring(L, 3), "DrawStringCursorIndex() argument 3: expected string, got %t", 3); - ui->LAssert(L, lua_isnumber(L, 4), "DrawStringCursorIndex() argument 4: expected number, got %t", 4); - ui->LAssert(L, lua_isnumber(L, 5), "DrawStringCursorIndex() argument 5: expected number, got %t", 5); + ui->LAssert(L, lua_isnumber(L, 1), "DrawStringCursorIndex() argument 1: expected number, got %s", luaL_typename(L, 1)); + ui->LAssert(L, lua_isstring(L, 2), "DrawStringCursorIndex() argument 2: expected string, got %s", luaL_typename(L, 2)); + ui->LAssert(L, lua_isstring(L, 3), "DrawStringCursorIndex() argument 3: expected string, got %s", luaL_typename(L, 3)); + ui->LAssert(L, lua_isnumber(L, 4), "DrawStringCursorIndex() argument 4: expected number, got %s", luaL_typename(L, 4)); + ui->LAssert(L, lua_isnumber(L, 5), "DrawStringCursorIndex() argument 5: expected number, got %s", luaL_typename(L, 5)); static const char* fontMap[4] = { "FIXED", "VAR", "VAR BOLD", NULL }; lua_pushinteger(L, ui->renderer->DrawStringCursorIndex((int)lua_tointeger(L, 1), luaL_checkoption(L, 2, "FIXED", fontMap), lua_tostring(L, 3), (int)lua_tointeger(L, 4), (int)lua_tointeger(L, 5)) + 1); return 1; @@ -510,7 +511,7 @@ static int l_StripEscapes(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: StripEscapes(string)"); - ui->LAssert(L, lua_isstring(L, 1), "StripEscapes() argument 1: expected string, got %t", 1); + ui->LAssert(L, lua_isstring(L, 1), "StripEscapes() argument 1: expected string, got %s", luaL_typename(L, 1)); const char* str = lua_tostring(L, 1); char* strip = new char[strlen(str) + 1]; char* p = strip; @@ -550,14 +551,14 @@ static int l_NewFileSearch(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: NewFileSearch(spec[, findDirectories])"); - ui->LAssert(L, lua_isstring(L, 1), "NewFileSearch() argument 1: expected string, got %t", 1); + ui->LAssert(L, lua_isstring(L, 1), "NewFileSearch() argument 1: expected string, got %s", luaL_typename(L, 1)); find_c* find = new find_c(); if ( !find->FindFirst(lua_tostring(L, 1)) ) { delete find; return 0; } bool dirOnly = lua_toboolean(L, 2) != 0; - while (find->isDirectory != dirOnly || !strcmp(find->fileName, ".") || !strcmp(find->fileName, "..")) { + while (find->isDirectory != dirOnly || find->fileName == "." || find->fileName == "..") { if ( !find->FindNext() ) { delete find; return 0; @@ -600,7 +601,7 @@ static int l_searchHandleNextFile(lua_State* L) searchHandle->find = NULL; return 0; } - } while (searchHandle->find->isDirectory != searchHandle->dirOnly || !strcmp(searchHandle->find->fileName, ".") || !strcmp(searchHandle->find->fileName, "..")); + } while (searchHandle->find->isDirectory != searchHandle->dirOnly || searchHandle->find->fileName == "." || searchHandle->find->fileName == ".."); lua_pushboolean(L, 1); return 1; } @@ -609,7 +610,7 @@ static int l_searchHandleGetFileName(lua_State* L) { ui_main_c* ui = GetUIPtr(L); searchHandle_s* searchHandle = GetSearchHandle(L, ui, "GetFileName", true); - lua_pushstring(L, searchHandle->find->fileName); + lua_pushstring(L, searchHandle->find->fileName.c_str()); return 1; } @@ -617,7 +618,7 @@ static int l_searchHandleGetFileSize(lua_State* L) { ui_main_c* ui = GetUIPtr(L); searchHandle_s* searchHandle = GetSearchHandle(L, ui, "GetFileSize", true); - lua_pushinteger(L, searchHandle->find->fileSize); + lua_pushinteger(L, (lua_Integer)searchHandle->find->fileSize); return 1; } @@ -626,9 +627,7 @@ static int l_searchHandleGetFileModifiedTime(lua_State* L) ui_main_c* ui = GetUIPtr(L); searchHandle_s* searchHandle = GetSearchHandle(L, ui, "GetFileModifiedTime", true); lua_pushnumber(L, (double)searchHandle->find->modified); - lua_pushstring(L, searchHandle->find->modifiedDate); - lua_pushstring(L, searchHandle->find->modifiedTime); - return 3; + return 1; } // ================= @@ -640,7 +639,7 @@ static int l_SetWindowTitle(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: SetWindowTitle(title)"); - ui->LAssert(L, lua_isstring(L, 1), "SetWindowTitle() argument 1: expected string, got %t", 1); + ui->LAssert(L, lua_isstring(L, 1), "SetWindowTitle() argument 1: expected string, got %s", luaL_typename(L, 1)); ui->sys->video->SetTitle(lua_tostring(L, 1)); ui->sys->conWin->SetTitle(lua_tostring(L, 1)); return 0; @@ -659,8 +658,8 @@ static int l_SetCursorPos(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 2, "Usage: SetCursorPos(x, y)"); - ui->LAssert(L, lua_isnumber(L, 1), "SetCursorPos() argument 1: expected number, got %t", 1); - ui->LAssert(L, lua_isnumber(L, 2), "SetCursorPos() argument 2: expected number, got %t", 2); + ui->LAssert(L, lua_isnumber(L, 1), "SetCursorPos() argument 1: expected number, got %s", luaL_typename(L, 1)); + ui->LAssert(L, lua_isnumber(L, 2), "SetCursorPos() argument 2: expected number, got %s", luaL_typename(L, 2)); ui->sys->video->SetRelativeCursor((int)lua_tointeger(L, 1), (int)lua_tointeger(L, 2)); return 0; } @@ -670,7 +669,6 @@ static int l_ShowCursor(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: ShowCursor(doShow)"); - ui->sys->ShowCursor(lua_toboolean(L, 1)); return 0; } @@ -679,7 +677,7 @@ static int l_IsKeyDown(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: IsKeyDown(keyName)"); - ui->LAssert(L, lua_isstring(L, 1), "IsKeyDown() argument 1: expected string, got %t", 1); + ui->LAssert(L, lua_isstring(L, 1), "IsKeyDown() argument 1: expected string, got %s", luaL_typename(L, 1)); size_t len; const char* kname = lua_tolstring(L, 1, &len); ui->LAssert(L, len >= 1, "IsKeyDown() argument 1: string is empty", 1); @@ -694,7 +692,7 @@ static int l_Copy(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: Copy(string)"); - ui->LAssert(L, lua_isstring(L, 1), "Copy() argument 1: expected string, got %t", 1); + ui->LAssert(L, lua_isstring(L, 1), "Copy() argument 1: expected string, got %s", luaL_typename(L, 1)); ui->sys->ClipboardCopy(lua_tostring(L, 1)); return 0; } @@ -717,7 +715,7 @@ static int l_Deflate(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: Deflate(string)"); - ui->LAssert(L, lua_isstring(L, 1), "Deflate() argument 1: expected string, got %t", 1); + ui->LAssert(L, lua_isstring(L, 1), "Deflate() argument 1: expected string, got %s", luaL_typename(L, 1)); z_stream_s z; z.zalloc = NULL; z.zfree = NULL; @@ -747,7 +745,7 @@ static int l_Inflate(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: Inflate(string)"); - ui->LAssert(L, lua_isstring(L, 1), "Inflate() argument 1: expected string, got %t", 1); + ui->LAssert(L, lua_isstring(L, 1), "Inflate() argument 1: expected string, got %s", luaL_typename(L, 1)); size_t inLen; byte* in = (byte*)lua_tolstring(L, 1, &inLen); int outSz = inLen * 4; @@ -799,14 +797,14 @@ static int l_GetScriptPath(lua_State* L) static int l_GetRuntimePath(lua_State* L) { ui_main_c* ui = GetUIPtr(L); - lua_pushstring(L, ui->sys->basePath); + lua_pushstring(L, ui->sys->basePath.c_str()); return 1; } static int l_GetUserPath(lua_State* L) { ui_main_c* ui = GetUIPtr(L); - lua_pushstring(L, ui->sys->userPath); + lua_pushstring(L, ui->sys->userPath.c_str()); return 1; } @@ -815,10 +813,12 @@ static int l_MakeDir(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: MakeDir(path)"); - ui->LAssert(L, lua_isstring(L, 1), "MakeDir() argument 1: expected string, got %t", 1); - if (_mkdir(lua_tostring(L, 1))) { + ui->LAssert(L, lua_isstring(L, 1), "MakeDir() argument 1: expected string, got %s", luaL_typename(L, 1)); + std::filesystem::path path(lua_tostring(L, 1)); + std::error_code ec; + if (!create_directory(path, ec)) { lua_pushnil(L); - lua_pushstring(L, strerror(errno)); + lua_pushstring(L, strerror(ec.value())); return 2; } else { lua_pushboolean(L, true); @@ -831,10 +831,12 @@ static int l_RemoveDir(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: l_RemoveDir(path)"); - ui->LAssert(L, lua_isstring(L, 1), "l_RemoveDir() argument 1: expected string, got %t", 1); - if (_rmdir(lua_tostring(L, 1))) { + ui->LAssert(L, lua_isstring(L, 1), "l_RemoveDir() argument 1: expected string, got %s", luaL_typename(L, 1)); + std::filesystem::path path(lua_tostring(L, 1)); + std::error_code ec; + if (!is_directory(path, ec) || ec || remove(path, ec) || ec) { lua_pushnil(L); - lua_pushstring(L, strerror(errno)); + lua_pushstring(L, strerror(ec.value())); return 2; } else { lua_pushboolean(L, true); @@ -847,7 +849,7 @@ static int l_SetWorkDir(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: SetWorkDir(path)"); - ui->LAssert(L, lua_isstring(L, 1), "SetWorkDir() argument 1: expected string, got %t", 1); + ui->LAssert(L, lua_isstring(L, 1), "SetWorkDir() argument 1: expected string, got %s", luaL_typename(L, 1)); const char* newWorkDir = lua_tostring(L, 1); if ( !ui->sys->SetWorkDir(newWorkDir) ) { if (ui->scriptWorkDir) { @@ -871,7 +873,7 @@ static int l_LaunchSubScript(lua_State* L) int n = lua_gettop(L); ui->LAssert(L, n >= 3, "Usage: LaunchSubScript(scriptText, funcList, subList[, ...])"); for (int i = 1; i <= 3; i++) { - ui->LAssert(L, lua_isstring(L, i), "LaunchSubScript() argument %d: expected string, got %t", i, i); + ui->LAssert(L, lua_isstring(L, i), "LaunchSubScript() argument %d: expected string, got %s", i, luaL_typename(L, i)); } for (int i = 4; i <= n; i++) { ui->LAssert(L, lua_isnil(L, i) || lua_isboolean(L, i) || lua_isnumber(L, i) || lua_isstring(L, i), @@ -894,7 +896,7 @@ static int l_LaunchSubScript(lua_State* L) } ui->subScriptList[slot] = ui_ISubScript::GetHandle(ui, slot); if (ui->subScriptList[slot]->Start()) { - lua_pushlightuserdata(L, (void*)slot); + lua_pushlightuserdata(L, (void*)(uintptr_t)slot); } else { lua_pushnil(L); } @@ -906,8 +908,8 @@ static int l_AbortSubScript(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: AbortSubScript(ssID)"); - ui->LAssert(L, lua_islightuserdata(L, 1), "AbortSubScript() argument 1: expected subscript ID, got %t", 1); - dword slot = (dword)lua_touserdata(L, 1); + ui->LAssert(L, lua_islightuserdata(L, 1), "AbortSubScript() argument 1: expected subscript ID, got %s", luaL_typename(L, 1)); + dword slot = (dword)(uintptr_t)lua_touserdata(L, 1); ui->LAssert(L, slot < ui->subScriptSize && ui->subScriptList[slot], "AbortSubScript() argument 1: invalid subscript ID"); ui->LAssert(L, ui->subScriptList[slot]->IsRunning(), "AbortSubScript(): subscript isn't running"); ui_ISubScript::FreeHandle(ui->subScriptList[slot]); @@ -920,8 +922,8 @@ static int l_IsSubScriptRunning(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: IsSubScriptRunning(ssID)"); - ui->LAssert(L, lua_islightuserdata(L, 1), "IsSubScriptRunning() argument 1: expected subscript ID, got %t", 1); - dword slot = (dword)lua_touserdata(L, 1); + ui->LAssert(L, lua_islightuserdata(L, 1), "IsSubScriptRunning() argument 1: expected subscript ID, got %s", luaL_typename(L, 1)); + dword slot = (dword)(uintptr_t)lua_touserdata(L, 1); ui->LAssert(L, slot < ui->subScriptSize && ui->subScriptList[slot], "IsSubScriptRunning() argument 1: invalid subscript ID"); lua_pushboolean(L, ui->subScriptList[slot]->IsRunning()); return 1; @@ -932,7 +934,7 @@ static int l_LoadModule(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: LoadModule(name[, ...])"); - ui->LAssert(L, lua_isstring(L, 1), "LoadModule() argument 1: expected string, got %t", 1); + ui->LAssert(L, lua_isstring(L, 1), "LoadModule() argument 1: expected string, got %s", luaL_typename(L, 1)); const char* modName = lua_tostring(L, 1); char fileName[1024]; strcpy(fileName, modName); @@ -953,7 +955,7 @@ static int l_PLoadModule(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: PLoadModule(name[, ...])"); - ui->LAssert(L, lua_isstring(L, 1), "PLoadModule() argument 1: expected string, got %t", 1); + ui->LAssert(L, lua_isstring(L, 1), "PLoadModule() argument 1: expected string, got %s", luaL_typename(L, 1)); const char* modName = lua_tostring(L, 1); char* fileName = AllocStringLen(strlen(modName) + 4); strcpy(fileName, modName); @@ -984,7 +986,7 @@ static int l_PCall(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: PCall(func[, ...])"); - ui->LAssert(L, lua_isfunction(L, 1), "PCall() argument 1: expected function, got %t", 1); + ui->LAssert(L, lua_isfunction(L, 1), "PCall() argument 1: expected function, got %s", luaL_typename(L, 1)); lua_getfield(L, LUA_REGISTRYINDEX, "traceback"); lua_insert(L, 1); // Insert traceback function at start of stack int err = lua_pcall(L, n - 1, LUA_MULTRET, 1); @@ -1001,7 +1003,7 @@ static int l_ConPrintf(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: ConPrintf(fmt[, ...])"); - ui->LAssert(L, lua_isstring(L, 1), "ConPrintf() argument 1: expected string, got %t", 1); + ui->LAssert(L, lua_isstring(L, 1), "ConPrintf() argument 1: expected string, got %s", luaL_typename(L, 1)); lua_pushvalue(L, lua_upvalueindex(1)); // string.format lua_insert(L, 1); lua_call(L, n, 1); @@ -1064,7 +1066,7 @@ static int l_ConPrintTable(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: ConPrintTable(tbl[, noRecurse])"); - ui->LAssert(L, lua_istable(L, 1), "ConPrintTable() argument 1: expected table, got %t", 1); + ui->LAssert(L, lua_istable(L, 1), "ConPrintTable() argument 1: expected table, got %s", luaL_typename(L, 1)); bool recurse = lua_toboolean(L, 2) == 0; lua_settop(L, 1); lua_getglobal(L, "tostring"); @@ -1081,7 +1083,7 @@ static int l_ConExecute(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: ConExecute(cmd)"); - ui->LAssert(L, lua_isstring(L, 1), "ConExecute() argument 1: expected string, got %t", 1); + ui->LAssert(L, lua_isstring(L, 1), "ConExecute() argument 1: expected string, got %s", luaL_typename(L, 1)); ui->sys->con->Execute(lua_tostring(L,1)); return 0; } @@ -1117,7 +1119,7 @@ static int l_SpawnProcess(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: SpawnProcess(cmdName[, args])"); - ui->LAssert(L, lua_isstring(L, 1), "SpawnProcess() argument 1: expected string, got %t", 1); + ui->LAssert(L, lua_isstring(L, 1), "SpawnProcess() argument 1: expected string, got %s", luaL_typename(L, 1)); ui->sys->SpawnProcess(lua_tostring(L, 1), lua_tostring(L, 2)); return 0; } @@ -1127,7 +1129,7 @@ static int l_OpenURL(lua_State* L) ui_main_c* ui = GetUIPtr(L); int n = lua_gettop(L); ui->LAssert(L, n >= 1, "Usage: OpenURL(url)"); - ui->LAssert(L, lua_isstring(L, 1), "OpenURL() argument 1: expected string, got %t", 1); + ui->LAssert(L, lua_isstring(L, 1), "OpenURL() argument 1: expected string, got %s", luaL_typename(L, 1)); ui->sys->OpenURL(lua_tostring(L, 1)); return 0; } @@ -1154,7 +1156,7 @@ static int l_Exit(lua_State* L) int n = lua_gettop(L); const char* msg = NULL; if (n >= 1 && !lua_isnil(L, 1)) { - ui->LAssert(L, lua_isstring(L, 1), "Exit() argument 1: expected string or nil, got %t", 1); + ui->LAssert(L, lua_isstring(L, 1), "Exit() argument 1: expected string or nil, got %s", luaL_typename(L, 1)); msg = lua_tostring(L, 1); } ui->sys->Exit(msg); @@ -1175,6 +1177,19 @@ int ui_main_c::InitAPI(lua_State* L) { luaL_openlibs(L); + // Add "lua/" subdir for non-JIT Lua + { + lua_getglobal(L, "package"); + char const* tn = lua_typename(L, -1); + lua_getfield(L, -1, "path"); + std::string old_path = lua_tostring(L, -1); + lua_pop(L, 1); + old_path += ";lua/?.lua"; + lua_pushstring(L, old_path.c_str()); + lua_setfield(L, -2, "path"); + lua_pop(L, 1); + } + // Callbacks lua_newtable(L); // Callbacks table lua_pushvalue(L, -1); // Push callbacks table diff --git a/ui_console.cpp b/ui_console.cpp index 8ca025a..b297ec5 100644 --- a/ui_console.cpp +++ b/ui_console.cpp @@ -6,6 +6,9 @@ #include "ui_local.h" +#include +#include + // ============= // Configuration // ============= @@ -83,6 +86,8 @@ void ui_console_c::Toggle() moveStart = sys->GetTime(); sys->con->Scroll(CBSC_BOTTOM); break; + default: + break; } } @@ -139,6 +144,8 @@ void ui_console_c::Render() y*= 1 - movetime / UI_CONMOVETIME; } break; + default: + break; } int fontSize = con_fontSize->intVal; @@ -183,26 +190,31 @@ void ui_console_c::Render() } // Generate input caret string - char caretStr[512]; - *caretStr = 0; + size_t caretPad = 0; for (int c = 0; c < caret; c++) { int escLen = IsColorEscape(&input[c]); if (escLen) { c+= escLen - 1; } else { - strcat_s(caretStr, 512, " "); - } + ++caretPad; + } } - strcat_s(caretStr, 512, "_"); + std::string caretStr(caretPad, ' '); + caretStr += "_"; // Draw prompt, input text, and caret renderer->DrawString(0, basey, F_LEFT, fontSize, colorWhite, F_FIXED, "]"); renderer->DrawStringFormat(fontSize * 0.66f, basey, F_LEFT, fontSize, colorWhite, F_FIXED, "%s", input); - renderer->DrawString(fontSize * 0.66f, basey, F_LEFT, fontSize, colorWhite, F_FIXED, caretStr); + renderer->DrawString(fontSize * 0.66f, basey, F_LEFT, fontSize, colorWhite, F_FIXED, caretStr.c_str()); } void ui_console_c::SetConInput(char* newInput, int newCaret) { - strcpy_s(input, 1024, newInput); - caret = newCaret; + std::string_view nextInput = newInput; + if (nextInput.size() >= 1024) { + nextInput = nextInput.substr(0, 1023); + } + memcpy(input, nextInput.data(), nextInput.size()); + input[nextInput.size()] = '\0'; + caret = newCaret; // TOOD(LV): bounds-check new caret? } diff --git a/ui_local.h b/ui_local.h index cefb27e..6551307 100644 --- a/ui_local.h +++ b/ui_local.h @@ -12,10 +12,16 @@ #include "ui.h" extern "C" { +#ifdef _WIN32 #include #include #include #include +#else +#include +#include +#include +#endif } #include "ui_console.h" diff --git a/ui_main.cpp b/ui_main.cpp index f9622e0..3e44584 100644 --- a/ui_main.cpp +++ b/ui_main.cpp @@ -87,36 +87,10 @@ ui_main_c::ui_main_c(sys_IMain* sysHnd, core_IMain* coreHnd) void ui_main_c::LAssert(lua_State* L, int cond, const char* fmt, ...) { if ( !cond ) { - char* newFmt = AllocString(fmt); va_list va; va_start(va, fmt); - char* p = newFmt; - while ((p = strchr(p, '%')) && *++p) { - if (*p == '%') continue; - switch (*p) { - case 's': - case 'p': - va_arg(va, char *); - break; - case 'c': - case 'd': - va_arg(va, int); - break; - case 'f': - va_arg(va, double); - break; - case 't': - *p = 's'; - int* arg = &va_arg(va, int); - *(char**)arg = (char*)luaL_typename(L, *arg); - break; - } - } - va_end(va); - va_start(va, fmt); - lua_pushvfstring(L, newFmt, va); + lua_pushvfstring(L, fmt, va); va_end(va); - FreeString(newFmt); lua_error(L); } } @@ -238,8 +212,8 @@ void ui_main_c::Init(int argc, char** argv) scriptPath = AllocString(tmpDir); scriptWorkDir = AllocString(tmpDir); } else { - scriptPath = AllocString(sys->basePath); - scriptWorkDir = AllocString(sys->basePath); + scriptPath = AllocString(sys->basePath.c_str()); + scriptWorkDir = AllocString(sys->basePath.c_str()); } scriptArgc = argc; scriptArgv = new char*[argc]; diff --git a/ui_subscript.cpp b/ui_subscript.cpp index 19b122c..1a2b4e2 100644 --- a/ui_subscript.cpp +++ b/ui_subscript.cpp @@ -110,36 +110,10 @@ static ui_subscript_c* GetSSPtr(lua_State* L) void ui_subscript_c::LAssert(int cond, const char* fmt, ...) { if ( !cond ) { - char* newFmt = AllocString(fmt); va_list va; va_start(va, fmt); - char* p = newFmt; - while ((p = strchr(p, '%')) && *++p) { - if (*p == '%') continue; - switch (*p) { - case 's': - case 'p': - va_arg(va, char *); - break; - case 'c': - case 'd': - va_arg(va, int); - break; - case 'f': - va_arg(va, double); - break; - case 't': - *p = 's'; - int* arg = &va_arg(va, int); - *(char**)arg = (char*)luaL_typename(L, *arg); - break; - } - } - va_end(va); - va_start(va, fmt); - lua_pushvfstring(L, newFmt, va); + lua_pushvfstring(L, fmt, va); va_end(va); - FreeString(newFmt); lua_error(L); } } @@ -395,7 +369,7 @@ void ui_subscript_c::ThreadProc() int numarg = (int)lua_tointeger(L, -1); lua_pop(L, 1); if (lua_pcall(L, numarg, LUA_MULTRET, 1)) { - errorStr = AllocString(lua_tostring(L, -1)); + errorStr = AllocString(lua_tostring(L, -1)); } finished = true; } @@ -463,7 +437,7 @@ void ui_subscript_c::SubScriptFrame() if (errorStr) { int extraArgs = ui->PushCallback("OnSubError"); if (extraArgs >= 0) { - lua_pushlightuserdata(ui->L, (void*)id); + lua_pushlightuserdata(ui->L, (void*)(uintptr_t)id); lua_pushstring(ui->L, errorStr); ui->PCall(extraArgs + 2, 0); } @@ -483,7 +457,7 @@ void ui_subscript_c::SubScriptFrame() break; } } - lua_pushlightuserdata(ui->L, (void*)id); + lua_pushlightuserdata(ui->L, (void*)(uintptr_t)id); ui->PCall(extraArgs + 1 + ssPushData(ui->L, ssBuildData(L, 2)), 0); } } diff --git a/vcpkg b/vcpkg index c9da48d..f14984a 160000 --- a/vcpkg +++ b/vcpkg @@ -1 +1 @@ -Subproject commit c9da48de3192936b1a208980333cfa583da1be25 +Subproject commit f14984af3738e69f197bf0e647a8dca12de92996 diff --git a/vcpkg-configuration.json b/vcpkg-configuration.json new file mode 100644 index 0000000..d3f70a7 --- /dev/null +++ b/vcpkg-configuration.json @@ -0,0 +1,14 @@ +{ + "default-registry": { + "kind": "builtin", + "baseline": "f14984af3738e69f197bf0e647a8dca12de92996" + }, + "registries": [ + { + "kind": "filesystem", + "path": "vcpkg-ports", + "baseline": "2022-08-14", + "packages": [] + } + ] +} \ No newline at end of file diff --git a/vcpkg-linux.txt b/vcpkg-linux.txt new file mode 100644 index 0000000..5213de7 --- /dev/null +++ b/vcpkg-linux.txt @@ -0,0 +1,2 @@ +fmt:x64-linux +glfw3:x64-linux \ No newline at end of file diff --git a/vcpkg-macos.txt b/vcpkg-macos.txt new file mode 100644 index 0000000..e299ef6 --- /dev/null +++ b/vcpkg-macos.txt @@ -0,0 +1,3 @@ +fmt:x64-osx +glfw3:x64-osx +zlib:x64-osx \ No newline at end of file diff --git a/vcpkg-ports/ports/luajit/2022-08-11_1/001-fix-build-path.patch b/vcpkg-ports/ports/luajit/2022-08-11_1/001-fix-build-path.patch new file mode 100644 index 0000000..09085af --- /dev/null +++ b/vcpkg-ports/ports/luajit/2022-08-11_1/001-fix-build-path.patch @@ -0,0 +1,120 @@ +diff --git a/src/msvcbuild.bat b/src/msvcbuild.bat +index aab4ef1..ff9df57 100644 +--- a/src/msvcbuild.bat ++++ b/src/msvcbuild.bat +@@ -15,19 +15,20 @@ + @setlocal + @rem Add more debug flags here, e.g. DEBUGCFLAGS=/DLUA_USE_APICHECK + @set DEBUGCFLAGS= +-@set LJCOMPILE=cl /nologo /c /O2 /W3 /D_CRT_SECURE_NO_DEPRECATE /D_CRT_STDIO_INLINE=__declspec(dllexport)__inline ++@set SOURCEDIR=%1 ++@set LJCOMPILE=cl /nologo /c /O2 /W3 /D_CRT_SECURE_NO_DEPRECATE /D_CRT_STDIO_INLINE=__declspec(dllexport)__inline /I%SOURCEDIR% + @set LJLINK=link /nologo + @set LJMT=mt /nologo + @set LJLIB=lib /nologo /nodefaultlib +-@set DASMDIR=..\dynasm ++@set DASMDIR=%SOURCEDIR%\..\dynasm + @set DASM=%DASMDIR%\dynasm.lua + @set DASC=vm_x64.dasc + @set LJDLLNAME=lua51.dll + @set LJLIBNAME=lua51.lib + @set BUILDTYPE=release +-@set ALL_LIB=lib_base.c lib_math.c lib_bit.c lib_string.c lib_table.c lib_io.c lib_os.c lib_package.c lib_debug.c lib_jit.c lib_ffi.c lib_buffer.c ++@set ALL_LIB=%SOURCEDIR%\lib_base.c %SOURCEDIR%\lib_math.c %SOURCEDIR%\lib_bit.c %SOURCEDIR%\lib_string.c %SOURCEDIR%\lib_table.c %SOURCEDIR%\lib_io.c %SOURCEDIR%\lib_os.c %SOURCEDIR%\lib_package.c %SOURCEDIR%\lib_debug.c %SOURCEDIR%\lib_jit.c %SOURCEDIR%\lib_ffi.c %SOURCEDIR%\lib_buffer.c + +-%LJCOMPILE% host\minilua.c ++%LJCOMPILE% %SOURCEDIR%\host\minilua.c /Fdminilua.pdb + @if errorlevel 1 goto :BAD + %LJLINK% /out:minilua.exe minilua.obj + @if errorlevel 1 goto :BAD +@@ -51,7 +52,7 @@ if exist minilua.exe.manifest^ +-minilua %DASM% -LN %DASMFLAGS% -o host\buildvm_arch.h %DASC% ++minilua %DASM% -LN %DASMFLAGS% -o %SOURCEDIR%\host\buildvm_arch.h %SOURCEDIR%\%DASC% + @if errorlevel 1 goto :BAD + +-%LJCOMPILE% /I "." /I %DASMDIR% host\buildvm*.c ++%LJCOMPILE% /I "." /I %DASMDIR% %SOURCEDIR%\host\buildvm*.c /Fdbuildvm.pdb + @if errorlevel 1 goto :BAD + %LJLINK% /out:buildvm.exe buildvm*.obj + @if errorlevel 1 goto :BAD +@@ -60,41 +61,41 @@ if exist buildvm.exe.manifest^ + + buildvm -m peobj -o lj_vm.obj + @if errorlevel 1 goto :BAD +-buildvm -m bcdef -o lj_bcdef.h %ALL_LIB% ++buildvm -m bcdef -o %SOURCEDIR%\lj_bcdef.h %ALL_LIB% + @if errorlevel 1 goto :BAD +-buildvm -m ffdef -o lj_ffdef.h %ALL_LIB% ++buildvm -m ffdef -o %SOURCEDIR%\lj_ffdef.h %ALL_LIB% + @if errorlevel 1 goto :BAD +-buildvm -m libdef -o lj_libdef.h %ALL_LIB% ++buildvm -m libdef -o %SOURCEDIR%\lj_libdef.h %ALL_LIB% + @if errorlevel 1 goto :BAD +-buildvm -m recdef -o lj_recdef.h %ALL_LIB% ++buildvm -m recdef -o %SOURCEDIR%\lj_recdef.h %ALL_LIB% + @if errorlevel 1 goto :BAD +-buildvm -m vmdef -o jit\vmdef.lua %ALL_LIB% ++buildvm -m vmdef -o %SOURCEDIR%\jit\vmdef.lua %ALL_LIB% + @if errorlevel 1 goto :BAD +-buildvm -m folddef -o lj_folddef.h lj_opt_fold.c ++buildvm -m folddef -o %SOURCEDIR%\lj_folddef.h %SOURCEDIR%\lj_opt_fold.c + @if errorlevel 1 goto :BAD + +-@if "%1" neq "debug" goto :NODEBUG ++@set LJLINK=%LJLINK% /debug ++@if "%2" neq "debug" goto :NODEBUG + @shift + @set BUILDTYPE=debug + @set LJCOMPILE=%LJCOMPILE% /Zi %DEBUGCFLAGS% +-@set LJLINK=%LJLINK% /opt:ref /opt:icf /incremental:no + :NODEBUG + @set LJLINK=%LJLINK% /%BUILDTYPE% +-@if "%1"=="amalg" goto :AMALGDLL +-@if "%1"=="static" goto :STATIC +-%LJCOMPILE% /MD /DLUA_BUILD_AS_DLL lj_*.c lib_*.c ++@if "%2"=="amalg" goto :AMALGDLL ++@if "%2"=="static" goto :STATIC ++%LJCOMPILE% /MD /DLUA_BUILD_AS_DLL %SOURCEDIR%\lj_*.c %SOURCEDIR%\lib_*.c /Fdlua51.pdb + @if errorlevel 1 goto :BAD + %LJLINK% /DLL /out:%LJDLLNAME% lj_*.obj lib_*.obj + @if errorlevel 1 goto :BAD + @goto :MTDLL + :STATIC +-%LJCOMPILE% lj_*.c lib_*.c ++%LJCOMPILE% %SOURCEDIR%\lj_*.c %SOURCEDIR%\lib_*.c /Fdlua51.pdb + @if errorlevel 1 goto :BAD + %LJLIB% /OUT:%LJLIBNAME% lj_*.obj lib_*.obj + @if errorlevel 1 goto :BAD + @goto :MTDLL + :AMALGDLL +-%LJCOMPILE% /MD /DLUA_BUILD_AS_DLL ljamalg.c ++%LJCOMPILE% /MD /DLUA_BUILD_AS_DLL %SOURCEDIR%\ljamalg.c + @if errorlevel 1 goto :BAD + %LJLINK% /DLL /out:%LJDLLNAME% ljamalg.obj lj_vm.obj + @if errorlevel 1 goto :BAD +@@ -102,7 +103,7 @@ buildvm -m folddef -o lj_folddef.h lj_opt_fold.c + if exist %LJDLLNAME%.manifest^ + %LJMT% -manifest %LJDLLNAME%.manifest -outputresource:%LJDLLNAME%;2 + +-%LJCOMPILE% luajit.c ++%LJCOMPILE% %SOURCEDIR%\luajit.c /Fdluajit.pdb + @if errorlevel 1 goto :BAD + %LJLINK% /out:luajit.exe luajit.obj %LJLIBNAME% + @if errorlevel 1 goto :BAD +@@ -110,8 +111,8 @@ if exist luajit.exe.manifest^ + %LJMT% -manifest luajit.exe.manifest -outputresource:luajit.exe + + @del *.obj *.manifest minilua.exe buildvm.exe +-@del host\buildvm_arch.h +-@del lj_bcdef.h lj_ffdef.h lj_libdef.h lj_recdef.h lj_folddef.h ++@del %SOURCEDIR%\host\buildvm_arch.h ++@del %SOURCEDIR%\lj_bcdef.h %SOURCEDIR%\lj_ffdef.h %SOURCEDIR%\lj_libdef.h %SOURCEDIR%\lj_recdef.h %SOURCEDIR%\lj_folddef.h + @echo. + @echo === Successfully built LuaJIT for Windows/%LJARCH% === + +@@ -124,4 +125,5 @@ if exist luajit.exe.manifest^ + @goto :END + :FAIL + @echo You must open a "Visual Studio Command Prompt" to run this script ++exit 1 + :END diff --git a/vcpkg-ports/ports/luajit/2022-08-11_1/002-fix-crt-linkage.patch b/vcpkg-ports/ports/luajit/2022-08-11_1/002-fix-crt-linkage.patch new file mode 100644 index 0000000..e3fe7fc --- /dev/null +++ b/vcpkg-ports/ports/luajit/2022-08-11_1/002-fix-crt-linkage.patch @@ -0,0 +1,44 @@ +diff --git a/src/msvcbuild.bat b/src/msvcbuild.bat +index ff9df57..912bdc9 100644 +--- a/src/msvcbuild.bat ++++ b/src/msvcbuild.bat +@@ -74,22 +74,25 @@ buildvm -m vmdef -o %SOURCEDIR%\jit\vmdef.lua %ALL_LIB% + buildvm -m folddef -o %SOURCEDIR%\lj_folddef.h %SOURCEDIR%\lj_opt_fold.c + @if errorlevel 1 goto :BAD + ++@if "%2"=="static" set CRT_LINKAGE=/MT ++@if "%2"=="dynamic" set CRT_LINKAGE=/MD + @set LJLINK=%LJLINK% /debug +-@if "%2" neq "debug" goto :NODEBUG ++@if "%3" neq "debug" goto :NODEBUG + @shift + @set BUILDTYPE=debug + @set LJCOMPILE=%LJCOMPILE% /Zi %DEBUGCFLAGS% ++@set CRT_LINKAGE=%CRT_LINKAGE%d + :NODEBUG + @set LJLINK=%LJLINK% /%BUILDTYPE% +-@if "%2"=="amalg" goto :AMALGDLL +-@if "%2"=="static" goto :STATIC +-%LJCOMPILE% /MD /DLUA_BUILD_AS_DLL %SOURCEDIR%\lj_*.c %SOURCEDIR%\lib_*.c /Fdlua51.pdb ++@if "%3"=="amalg" goto :AMALGDLL ++@if "%3"=="static" goto :STATIC ++%LJCOMPILE% %CRT_LINKAGE% /DLUA_BUILD_AS_DLL %SOURCEDIR%\lj_*.c %SOURCEDIR%\lib_*.c /Fdlua51.pdb + @if errorlevel 1 goto :BAD + %LJLINK% /DLL /out:%LJDLLNAME% lj_*.obj lib_*.obj + @if errorlevel 1 goto :BAD + @goto :MTDLL + :STATIC +-%LJCOMPILE% %SOURCEDIR%\lj_*.c %SOURCEDIR%\lib_*.c /Fdlua51.pdb ++%LJCOMPILE% %CRT_LINKAGE% %SOURCEDIR%\lj_*.c %SOURCEDIR%\lib_*.c /Fdlua51.pdb + @if errorlevel 1 goto :BAD + %LJLIB% /OUT:%LJLIBNAME% lj_*.obj lib_*.obj + @if errorlevel 1 goto :BAD +@@ -103,7 +106,7 @@ buildvm -m folddef -o %SOURCEDIR%\lj_folddef.h %SOURCEDIR%\lj_opt_fold.c + if exist %LJDLLNAME%.manifest^ + %LJMT% -manifest %LJDLLNAME%.manifest -outputresource:%LJDLLNAME%;2 + +-%LJCOMPILE% %SOURCEDIR%\luajit.c /Fdluajit.pdb ++%LJCOMPILE% %CRT_LINKAGE% %SOURCEDIR%\luajit.c /Fdluajit.pdb + @if errorlevel 1 goto :BAD + %LJLINK% /out:luajit.exe luajit.obj %LJLIBNAME% + @if errorlevel 1 goto :BAD diff --git a/vcpkg-ports/ports/luajit/2022-08-11_1/003-do-not-set-macosx-deployment-target.patch b/vcpkg-ports/ports/luajit/2022-08-11_1/003-do-not-set-macosx-deployment-target.patch new file mode 100644 index 0000000..42e0eca --- /dev/null +++ b/vcpkg-ports/ports/luajit/2022-08-11_1/003-do-not-set-macosx-deployment-target.patch @@ -0,0 +1,14 @@ +diff --git a/src/Makefile b/src/Makefile +index 30d64be..b753ea1 100644 +--- a/src/Makefile ++++ b/src/Makefile +@@ -316,9 +316,6 @@ ifeq (,$(shell $(TARGET_CC) -o /dev/null -c -x c /dev/null -fno-stack-protector + TARGET_XCFLAGS+= -fno-stack-protector + endif + ifeq (Darwin,$(TARGET_SYS)) +- ifeq (,$(MACOSX_DEPLOYMENT_TARGET)) +- $(error missing: export MACOSX_DEPLOYMENT_TARGET=XX.YY) +- endif + TARGET_STRIP+= -x + TARGET_XCFLAGS+= -DLUAJIT_UNWIND_EXTERNAL + TARGET_XSHLDFLAGS= -dynamiclib -single_module -undefined dynamic_lookup -fPIC diff --git a/vcpkg-ports/ports/luajit/2022-08-11_1/portfile.cmake b/vcpkg-ports/ports/luajit/2022-08-11_1/portfile.cmake new file mode 100644 index 0000000..fcba2d1 --- /dev/null +++ b/vcpkg-ports/ports/luajit/2022-08-11_1/portfile.cmake @@ -0,0 +1,109 @@ +vcpkg_from_github( + OUT_SOURCE_PATH SOURCE_PATH + REPO LuaJIT/LuaJIT + REF 633f265f67f322cbe2c5fd11d3e46d968ac220f7 #2022-08-11 + SHA512 0a1d79ab7d2de6894bcff33309e015fdba0ea67cf0425d75b9301a30006039e81b527178dbb3485e1adea177ffe062e6fcef74307f8e725678e70562d57d1a5b + HEAD_REF master + PATCHES + 001-fix-build-path.patch + 002-fix-crt-linkage.patch + 003-do-not-set-macosx-deployment-target.patch +) + +if (VCPKG_LIBRARY_LINKAGE STREQUAL dynamic) + set (LJIT_STATIC "") +else() + set (LJIT_STATIC "static") +endif() + +if (NOT VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL debug) + message(STATUS "Building ${TARGET_TRIPLET}-dbg") + file(REMOVE_RECURSE "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg") + file(MAKE_DIRECTORY "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg") + + if (VCPKG_TARGET_IS_WINDOWS AND NOT VCPKG_TARGET_IS_MINGW) + vcpkg_execute_required_process_repeat( + COUNT 1 + COMMAND "${SOURCE_PATH}/src/msvcbuild.bat" ${SOURCE_PATH}/src ${VCPKG_CRT_LINKAGE} debug ${LJIT_STATIC} + WORKING_DIRECTORY "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg" + LOGNAME build-${TARGET_TRIPLET}-dbg + ) + + file(INSTALL "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg/luajit.exe" DESTINATION "${CURRENT_PACKAGES_DIR}/debug/tools") + file(INSTALL "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg/lua51.lib" DESTINATION "${CURRENT_PACKAGES_DIR}/debug/lib") + + if (VCPKG_LIBRARY_LINKAGE STREQUAL dynamic) + file(INSTALL "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg/lua51.dll" DESTINATION "${CURRENT_PACKAGES_DIR}/debug/bin") + file(COPY "${CURRENT_PACKAGES_DIR}/debug/bin/lua51.dll" DESTINATION "${CURRENT_PACKAGES_DIR}/debug/tools") + endif() + + vcpkg_copy_pdbs() + else() + vcpkg_execute_build_process( + COMMAND make -j${VCPKG_CONCURRENCY} -f ${SOURCE_PATH}/Makefile clean + WORKING_DIRECTORY ${SOURCE_PATH} + LOGNAME clean-${TARGET_TRIPLET}-debug + ) + vcpkg_execute_build_process( + COMMAND make -j${VCPKG_CONCURRENCY} -f ${SOURCE_PATH}/Makefile PREFIX=${CURRENT_PACKAGES_DIR}/debug CCDEBUG=-g3 CFLAGS=-O0 BUILDMODE=${VCPKG_LIBRARY_LINKAGE} install + WORKING_DIRECTORY ${SOURCE_PATH} + LOGNAME build-${TARGET_TRIPLET}-debug + ) + file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/include") + file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/share") + file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/lib/lua") + file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/bin") + endif() +endif() + +if (NOT VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL release) + message(STATUS "Building ${TARGET_TRIPLET}-rel") + file(REMOVE_RECURSE "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel") + file(MAKE_DIRECTORY "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel") + + if (VCPKG_TARGET_IS_WINDOWS AND NOT VCPKG_TARGET_IS_MINGW) + vcpkg_execute_required_process_repeat( + COUNT 1 + COMMAND "${SOURCE_PATH}/src/msvcbuild.bat" ${SOURCE_PATH}/src ${VCPKG_CRT_LINKAGE} ${LJIT_STATIC} + WORKING_DIRECTORY "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel" + LOGNAME build-${TARGET_TRIPLET}-rel + ) + + file(INSTALL "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel/luajit.exe" DESTINATION "${CURRENT_PACKAGES_DIR}/tools") + file(INSTALL "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel/lua51.lib" DESTINATION "${CURRENT_PACKAGES_DIR}/lib") + + if (VCPKG_LIBRARY_LINKAGE STREQUAL dynamic) + file(INSTALL "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel/lua51.dll" DESTINATION "${CURRENT_PACKAGES_DIR}/bin") + vcpkg_copy_tool_dependencies(${CURRENT_PACKAGES_DIR}/tools) + endif() + + vcpkg_copy_pdbs() + else() + vcpkg_execute_build_process( + COMMAND make -j${VCPKG_CONCURRENCY} -f ${SOURCE_PATH}/Makefile clean + WORKING_DIRECTORY ${SOURCE_PATH} + LOGNAME clean-${TARGET_TRIPLET}-rel + ) + vcpkg_execute_build_process( + COMMAND make -j${VCPKG_CONCURRENCY} -f ${SOURCE_PATH}/Makefile PREFIX=${CURRENT_PACKAGES_DIR} CCDEBUG= BUILDMODE=${VCPKG_LIBRARY_LINKAGE} install + WORKING_DIRECTORY ${SOURCE_PATH} + LOGNAME build-${TARGET_TRIPLET}-rel + ) + file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/share/lua" "${CURRENT_PACKAGES_DIR}/lib/lua") + endif() +endif() + +if(VCPKG_LIBRARY_LINKAGE STREQUAL "static") + file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/bin" "${CURRENT_PACKAGES_DIR}/debug/bin") +endif() + +file(INSTALL "${SOURCE_PATH}/src/lua.h" DESTINATION "${CURRENT_PACKAGES_DIR}/include/${PORT}") +file(INSTALL "${SOURCE_PATH}/src/luajit.h" DESTINATION "${CURRENT_PACKAGES_DIR}/include/${PORT}") +file(INSTALL "${SOURCE_PATH}/src/luaconf.h" DESTINATION "${CURRENT_PACKAGES_DIR}/include/${PORT}") +file(INSTALL "${SOURCE_PATH}/src/lualib.h" DESTINATION "${CURRENT_PACKAGES_DIR}/include/${PORT}") +file(INSTALL "${SOURCE_PATH}/src/lauxlib.h" DESTINATION "${CURRENT_PACKAGES_DIR}/include/${PORT}") +file(INSTALL "${SOURCE_PATH}/src/lua.hpp" DESTINATION "${CURRENT_PACKAGES_DIR}/include/${PORT}") + +vcpkg_fixup_pkgconfig() + +file(INSTALL "${SOURCE_PATH}/COPYRIGHT" DESTINATION "${CURRENT_PACKAGES_DIR}/share/${PORT}" RENAME copyright) diff --git a/vcpkg-ports/ports/luajit/2022-08-11_1/vcpkg.json b/vcpkg-ports/ports/luajit/2022-08-11_1/vcpkg.json new file mode 100644 index 0000000..a1090cf --- /dev/null +++ b/vcpkg-ports/ports/luajit/2022-08-11_1/vcpkg.json @@ -0,0 +1,9 @@ +{ + "name": "luajit", + "version-date": "2022-08-11", + "port-version": 1, + "description": "LuaJIT is a Just-In-Time (JIT) compiler for the Lua programming language.", + "homepage": "https://github.com/LuaJIT/LuaJIT", + "license": "MIT", + "supports": "!uwp" +} diff --git a/vcpkg-ports/versions/baseline.json b/vcpkg-ports/versions/baseline.json new file mode 100644 index 0000000..81afca3 --- /dev/null +++ b/vcpkg-ports/versions/baseline.json @@ -0,0 +1,5 @@ +{ + "2022-08-14": { + "luajit": { "baseline": "2022-08-11", "port-version": 1 } + } +} \ No newline at end of file diff --git a/vcpkg-ports/versions/l-/luajit.json b/vcpkg-ports/versions/l-/luajit.json new file mode 100644 index 0000000..30e80dc --- /dev/null +++ b/vcpkg-ports/versions/l-/luajit.json @@ -0,0 +1,9 @@ +{ + "versions": [ + { + "version-date": "2022-08-11", + "port-version": 1, + "path": "$/ports/luajit/2022-08-11_1" + } + ] +} \ No newline at end of file diff --git a/vcpkg.json b/vcpkg.json new file mode 100644 index 0000000..dd9b925 --- /dev/null +++ b/vcpkg.json @@ -0,0 +1,17 @@ +{ + "name": "path-of-building-simplegraphic", + "version-date": "2023-01-20", + "dependencies": [ + "angle", + "fmt", + "giflib", + "glfw3", + "libjpeg-turbo", + "liblzma", + "libpng", + "luajit", + "pkgconf", + "re2", + "zlib" + ] +} \ No newline at end of file diff --git a/vcpkg.txt b/vcpkg.txt index af24077..730cf82 100644 --- a/vcpkg.txt +++ b/vcpkg.txt @@ -1,6 +1,10 @@ -giflib:x86-windows-static -libjpeg-turbo:x86-windows-static -liblzma:x86-windows-static -libpng:x86-windows-static -luajit:x86-windows-static -zlib:x86-windows-static \ No newline at end of file +angle:x86-windows +fmt:x86-windows +giflib:x86-windows +glfw3:x86-windows +libjpeg-turbo:x86-windows +liblzma:x86-windows +libpng:x86-windows +luajit:x86-windows +re2:x86-windows +zlib:x86-windows \ No newline at end of file diff --git a/win/entry.cpp b/win/entry.cpp index 2663c70..af02f1f 100644 --- a/win/entry.cpp +++ b/win/entry.cpp @@ -50,13 +50,40 @@ #endif #endif -extern "C" __declspec(dllexport) int RunLuaFileAsWin(int argc, char** argv) +#if defined _WIN32 || defined __CYGWIN__ + #ifdef SIMPLEGRAPHIC_EXPORTS + #ifdef __GNUC__ + #define SIMPLEGRAPHIC_DLL_PUBLIC __attribute__ ((dllexport)) + #else + #define SIMPLEGRAPHIC_DLL_PUBLIC __declspec(dllexport) // Note: actually gcc seems to also supports this syntax. + #endif + #else + #ifdef __GNUC__ + #define SIMPLEGRAPHIC_DLL_PUBLIC __attribute__ ((dllimport)) + #else + #define SIMPLEGRAPHIC_DLL_PUBLIC __declspec(dllimport) // Note: actually gcc seems to also supports this syntax. + #endif + #endif + #define SIMPLEGRAPHIC_DLL_LOCAL +#else + #if __GNUC__ >= 4 + #define SIMPLEGRAPHIC_DLL_PUBLIC __attribute__ ((visibility ("default"))) + #define SIMPLEGRAPHIC_DLL_LOCAL __attribute__ ((visibility ("hidden"))) + #else + #define SIMPLEGRAPHIC_DLL_PUBLIC + #define SIMPLEGRAPHIC_DLL_LOCAL + #endif +#endif + +extern "C" SIMPLEGRAPHIC_DLL_PUBLIC int RunLuaFileAsWin(int argc, char** argv) { #ifdef _MEMTRAK_H strcpy_s(_memTrak_reportName, 512, "SimpleGraphic/memtrak.log"); #endif +#ifdef _WIN32 timeBeginPeriod(1); +#endif sys_main_c* sys = new sys_main_c; @@ -64,6 +91,8 @@ extern "C" __declspec(dllexport) int RunLuaFileAsWin(int argc, char** argv) delete sys; +#ifdef _WIN32 timeEndPeriod(1); +#endif return 0; }