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glscreenshot added. #2

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9d90398
glscreenshot added.
cjtc052 Aug 2, 2013
542e587
ignore updated.
cjtc052 Aug 2, 2013
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18 changes: 18 additions & 0 deletions .gitignore
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Original file line number Diff line number Diff line change
@@ -0,0 +1,18 @@
# Xcode
.DS_Store
build/
*.pbxuser
!default.pbxuser
*.mode1v3
!default.mode1v3
*.mode2v3
!default.mode2v3
*.perspectivev3
!default.perspectivev3
*.xcworkspace
!default.xcworkspace
xcuserdata
profile
*.moved-aside
DerivedData
.idea/
1 change: 1 addition & 0 deletions Classes/UIView+MLScreenshot.h
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Expand Up @@ -17,5 +17,6 @@
@interface UIView (MLScreenshot)

- (UIImage *)screenshot;
- (UIImage *)glScreenshot;

@end
21 changes: 21 additions & 0 deletions Classes/UIView+MLScreenshot.m
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Expand Up @@ -41,6 +41,27 @@ - (UIImage *)screenshot
return screenshot;
}

- (UIImage *)glScreenshot
{
// Draw OpenGL data to an image context

UIGraphicsBeginImageContext(self.frame.size);
int width = self.frame.size.width;
int height = self.frame.size.height;
unsigned char buffer[width * height * 4];

CGContextRef context = UIGraphicsGetCurrentContext();
glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, &buffer);
CGDataProviderRef dRef = CGDataProviderCreateWithData(NULL, &buffer, width * height * 4, NULL);
CGImageRef ref = CGImageCreate(width,height,8,32,width*4, CGColorSpaceCreateDeviceRGB(), kCGImageAlphaLast, dRef, NULL, true, kCGRenderingIntentDefault);

CGContextScaleCTM(context, 1.0, -1.0);
CGContextTranslateCTM(context, 0, -self.frame.size.height);
UIImage *im = [[UIImage alloc] initWithCGImage:ref];
UIGraphicsEndImageContext();
return im;
}

- (BOOL)isMapViewInSubviews:(NSArray *)subviews
{
for(id view in subviews)
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