handle the Occluded case directly within TryGetCurrentTexture

examples/boids/main.go

@@ -8,7 +8,6 @@ import (
 	"runtime"
 	"strconv"
 	"strings"
-	"time"
 
 	"github.com/go-gl/glfw/v3.4/glfw"
 	"github.com/oliverbestmann/webgpu/wgpu"
@@ -310,8 +309,7 @@ func (s *State) Render() error {
 
 	nextTexture, ok := surfaceTexture.Get()
 	if !ok {
-		// maybe occluded, retry layter
-		time.Sleep(16 * time.Millisecond)
+		// todo: in this case you actually want to re-configure the surface!
 		return nil
 	}
 

examples/cube/main.go

@@ -6,7 +6,6 @@ import (
 	"os"
 	"runtime"
 	"strings"
-	"time"
 	"unsafe"
 
 	"github.com/go-gl/glfw/v3.4/glfw"
@@ -349,8 +348,7 @@ func (s *State) Render() error {
 
 	nextTexture, ok := surfaceTexture.Get()
 	if !ok {
-		// maybe occluded, retry layter
-		time.Sleep(16 * time.Millisecond)
+		// todo: in this case you actually want to re-configure the surface!
 		return nil
 	}
 

examples/triangle/main.go

@@ -3,7 +3,6 @@ package main
 import (
 	"os"
 	"runtime"
-	"time"
 
 	"github.com/oliverbestmann/webgpu/wgpu"
 
@@ -148,8 +147,7 @@ func (s *State) Render() error {
 
 	nextTexture, ok := surfaceTexture.Get()
 	if !ok {
-		// maybe occluded, retry layter
-		time.Sleep(16 * time.Millisecond)
+		// todo: in this case you actually want to re-configure the surface!
 		return nil
 	}
 

wgpu/surface.go

@@ -29,7 +29,10 @@ import "C"
 import (
 	"errors"
 	"runtime"
+	"time"
 	"unsafe"
+
+	"github.com/go-gl/glfw/v3.4/glfw"
 )
 
 func (g *Surface) GetCapabilities(adapter *Adapter) (ret SurfaceCapabilities) {
@@ -133,28 +136,35 @@ func (g *Surface) TryGetCurrentTexture() (SurfaceTexture, error) {
 	errh := acquireErrorCallback()
 	defer errh.Done()
 
-	surfaceTexture := C.gowebgpu_surface_get_current_texture(
-		g.ref,
-		g.device,
-		errh.ToPointer(),
-	)
-	if errh.err != nil {
-		if surfaceTexture.texture != nil {
-			C.wgpuTextureRelease(surfaceTexture.texture)
+	for {
+		surfaceTexture := C.gowebgpu_surface_get_current_texture(
+			g.ref,
+			g.device,
+			errh.ToPointer(),
+		)
+		if errh.err != nil {
+			if surfaceTexture.texture != nil {
+				C.wgpuTextureRelease(surfaceTexture.texture)
+			}
+
+			return SurfaceTexture{}, errh.err
 		}
 
-		return SurfaceTexture{}, errh.err
-	}
+		status := SurfaceGetCurrentTextureStatus(surfaceTexture.status)
+		if status == SurfaceGetCurrentTextureStatusOccluded {
+			time.Sleep(16 * time.Millisecond)
+			glfw.PollEvents()
+			continue
+		}
 
-	status := SurfaceGetCurrentTextureStatus(surfaceTexture.status)
+		var texture *Texture
+		if surfaceTexture.texture != nil {
+			C.wgpuDeviceAddRef(g.device)
+			texture = &Texture{device: g.device, ref: surfaceTexture.texture}
+		}
 
-	var texture *Texture
-	if surfaceTexture.texture != nil {
-		C.wgpuDeviceAddRef(g.device)
-		texture = &Texture{device: g.device, ref: surfaceTexture.texture}
+		return SurfaceTexture{Texture: texture, Status: status}, nil
 	}
-
-	return SurfaceTexture{Texture: texture, Status: status}, nil
 }
 
 func (g *Surface) Present() {