copyToTexture tests: remove paintOpaqueRects workaround and make colo…

…r_space_conversion tests work without it

src/webgpu/web_platform/copyToTexture/canvas.spec.ts

@@ -12,12 +12,10 @@ class F extends CopyToTextureUtils {
   init2DCanvasContentWithColorSpace({
     width,
     height,
-    paintOpaqueRects,
     colorSpace,
   }: {
     width: number;
     height: number;
-    paintOpaqueRects: boolean;
     colorSpace: 'srgb' | 'display-p3';
   }): {
     canvas: HTMLCanvasElement | OffscreenCanvas;
@@ -45,7 +43,7 @@ class F extends CopyToTextureUtils {
     const rectWidth = Math.floor(width / 2);
     const rectHeight = Math.floor(height / 2);
 
-    const alphaValue = paintOpaqueRects ? 255 : 153;
+    const alphaValue = 153;
 
     let pixelStartPos = 0;
     // Red;
@@ -110,12 +108,10 @@ class F extends CopyToTextureUtils {
     canvasType,
     width,
     height,
-    paintOpaqueRects,
   }: {
     canvasType: CanvasType;
     width: number;
     height: number;
-    paintOpaqueRects: boolean;
   }): {
     canvas: HTMLCanvasElement | OffscreenCanvas;
     canvasContext: CanvasRenderingContext2D | OffscreenCanvasRenderingContext2D;
@@ -132,12 +128,8 @@ class F extends CopyToTextureUtils {
       this.skip(canvasType + ' canvas 2d context not available');
     }
 
-    // The rgb10a2unorm dst texture will have tiny errors when we compare actual and expectation.
-    // This is due to the convert from 8-bit to 10-bit combined with alpha value ops. So for
-    // rgb10a2unorm dst textures, we'll set alphaValue to 1.0 to test.
-    const alphaValue = paintOpaqueRects ? 1.0 : 0.6;
     const ctx = canvasContext as CanvasRenderingContext2D | OffscreenCanvasRenderingContext2D;
-    this.paint2DCanvas(ctx, width, height, alphaValue);
+    this.paint2DCanvas(ctx, width, height, 0.6);
 
     return { canvas, canvasContext };
   }
@@ -172,14 +164,12 @@ class F extends CopyToTextureUtils {
     width,
     height,
     premultiplied,
-    paintOpaqueRects,
   }: {
     canvasType: CanvasType;
     contextName: 'webgl' | 'webgl2';
     width: number;
     height: number;
     premultiplied: boolean;
-    paintOpaqueRects: boolean;
   }): {
     canvas: HTMLCanvasElement | OffscreenCanvas;
     canvasContext: WebGLRenderingContext | WebGL2RenderingContext;
@@ -200,7 +190,7 @@ class F extends CopyToTextureUtils {
     const rectWidth = Math.floor(width / 2);
     const rectHeight = Math.floor(height / 2);
 
-    const alphaValue = paintOpaqueRects ? 1.0 : 0.6;
+    const alphaValue = 0.6;
     const colorValue = premultiplied ? alphaValue : 1.0;
 
     // For webgl/webgl2 context canvas, if the context created with premultipliedAlpha attributes,
@@ -227,16 +217,11 @@ class F extends CopyToTextureUtils {
     return { canvas, canvasContext: gl };
   }
 
-  getInitGPUCanvasData(
-    width: number,
-    height: number,
-    premultiplied: boolean,
-    paintOpaqueRects: boolean
-  ): Uint8ClampedArray {
+  getInitGPUCanvasData(width: number, height: number, premultiplied: boolean): Uint8ClampedArray {
     const rectWidth = Math.floor(width / 2);
     const rectHeight = Math.floor(height / 2);
 
-    const alphaValue = paintOpaqueRects ? 255 : 153;
+    const alphaValue = 153;
     const colorValue = premultiplied ? alphaValue : 255;
 
     // BGRA8Unorm texture
@@ -287,14 +272,12 @@ class F extends CopyToTextureUtils {
     width,
     height,
     premultiplied,
-    paintOpaqueRects,
   }: {
     device: GPUDevice;
     canvasType: CanvasType;
     width: number;
     height: number;
     premultiplied: boolean;
-    paintOpaqueRects: boolean;
   }): {
     canvas: HTMLCanvasElement | OffscreenCanvas;
   } {
@@ -316,7 +299,7 @@ class F extends CopyToTextureUtils {
     });
 
     // BGRA8Unorm texture
-    const initialData = this.getInitGPUCanvasData(width, height, premultiplied, paintOpaqueRects);
+    const initialData = this.getInitGPUCanvasData(width, height, premultiplied);
     const canvasTexture = gpuContext.getCurrentTexture();
     device.queue.writeTexture(
       { texture: canvasTexture },
@@ -360,17 +343,11 @@ class F extends CopyToTextureUtils {
   calculateSourceContentOnCPU(
     width: number,
     height: number,
-    premultipliedAlpha: boolean,
-    paintOpaqueRects: boolean
+    premultipliedAlpha: boolean
   ): Uint8ClampedArray {
     const bytesPerPixel = 4;
 
-    const rgbaPixels = this.getInitGPUCanvasData(
-      width,
-      height,
-      premultipliedAlpha,
-      paintOpaqueRects
-    );
+    const rgbaPixels = this.getInitGPUCanvasData(width, height, premultipliedAlpha);
 
     // The source canvas has bgra8unorm back resource. We
     // swizzle the channels to align with 2d/webgl canvas and
@@ -421,7 +398,6 @@ g.test('copy_contents_from_2d_context_canvas')
   - Valid dest alphaMode
   - Valid 'flipY' config in 'GPUImageCopyExternalImage' (named 'srcDoFlipYDuringCopy' in cases)
   - TODO(#913): color space tests need to be added
-  - TODO: Add error tolerance for rgb10a2unorm dst texture format
 
   And the expected results are all passed.
   `
@@ -446,20 +422,10 @@ g.test('copy_contents_from_2d_context_canvas')
       srcDoFlipYDuringCopy,
     } = t.params;
 
-    // When dst texture format is rgb10a2unorm, the generated expected value of the result
-    // may have tiny errors compared to the actual result when the channel value is
-    // not 1.0 or 0.0.
-    // For example, we init the pixel with r channel to 0.6. And the denormalized value for
-    // 10-bit channel is 613.8, which needs to call "round" or other function to get an integer.
-    // It is possible that gpu adopt different "round" as our cpu implementation(we use Math.round())
-    // and it will generate tiny errors.
-    // So the cases with rgb10a2unorm dst texture format are handled specially by painting opaque rects
-    // to ensure they will have stable result after alphaOps(should keep the same value).
     const { canvas, canvasContext } = t.init2DCanvasContent({
       canvasType,
       width,
       height,
-      paintOpaqueRects: dstColorFormat === 'rgb10a2unorm',
     });
 
     const dst = t.device.createTexture({
@@ -535,7 +501,6 @@ g.test('copy_contents_from_gl_context_canvas')
   - Valid dest alphaMode
   - Valid 'flipY' config in 'GPUImageCopyExternalImage'(named 'srcDoFlipYDuringCopy' in cases)
   - TODO: color space tests need to be added
-  - TODO: Add error tolerance for rgb10a2unorm dst texture format
 
   And the expected results are all passed.
   `
@@ -564,22 +529,12 @@ g.test('copy_contents_from_gl_context_canvas')
       srcDoFlipYDuringCopy,
     } = t.params;
 
-    // When dst texture format is rgb10a2unorm, the generated expected value of the result
-    // may have tiny errors compared to the actual result when the channel value is
-    // not 1.0 or 0.0.
-    // For example, we init the pixel with r channel to 0.6. And the denormalized value for
-    // 10-bit channel is 613.8, which needs to call "round" or other function to get an integer.
-    // It is possible that gpu adopt different "round" as our cpu implementation(we use Math.round())
-    // and it will generate tiny errors.
-    // So the cases with rgb10a2unorm dst texture format are handled specially by by painting opaque rects
-    // to ensure they will have stable result after alphaOps(should keep the same value).
     const { canvas, canvasContext } = t.initGLCanvasContent({
       canvasType,
       contextName,
       width,
       height,
       premultiplied: srcPremultiplied,
-      paintOpaqueRects: dstColorFormat === 'rgb10a2unorm',
     });
 
     const dst = t.device.createTexture({
@@ -650,7 +605,6 @@ g.test('copy_contents_from_gpu_context_canvas')
   - Valid dest alphaMode
   - Valid 'flipY' config in 'GPUImageCopyExternalImage'(named 'srcDoFlipYDuringCopy' in cases)
   - TODO: color space tests need to be added
-  - TODO: Add error tolerance for rgb10a2unorm dst texture format
 
   And the expected results are all passed.
   `
@@ -688,22 +642,12 @@ g.test('copy_contents_from_gpu_context_canvas')
       device = t.device;
     }
 
-    // When dst texture format is rgb10a2unorm, the generated expected value of the result
-    // may have tiny errors compared to the actual result when the channel value is
-    // not 1.0 or 0.0.
-    // For example, we init the pixel with r channel to 0.6. And the denormalized value for
-    // 10-bit channel is 613.8, which needs to call "round" or other function to get an integer.
-    // It is possible that gpu adopt different "round" as our cpu implementation(we use Math.round())
-    // and it will generate tiny errors.
-    // So the cases with rgb10a2unorm dst texture format are handled specially by by painting opaque rects
-    // to ensure they will have stable result after alphaOps(should keep the same value).
     const { canvas } = t.initGPUCanvasContent({
       device,
       canvasType,
       width,
       height,
       premultiplied: srcPremultiplied,
-      paintOpaqueRects: dstColorFormat === 'rgb10a2unorm',
     });
 
     const dst = t.device.createTexture({
@@ -720,12 +664,7 @@ g.test('copy_contents_from_gpu_context_canvas')
     // Construct expected value for different dst color format
     const info = kTextureFormatInfo[dstColorFormat];
     const expFormat = info.baseFormat ?? dstColorFormat;
-    const sourcePixels = t.calculateSourceContentOnCPU(
-      width,
-      height,
-      srcPremultiplied,
-      dstColorFormat === 'rgb10a2unorm'
-    );
+    const sourcePixels = t.calculateSourceContentOnCPU(width, height, srcPremultiplied);
     const expTexelView = t.getExpectedPixels(
       sourcePixels,
       width,
@@ -811,7 +750,6 @@ g.test('color_space_conversion')
     const { canvas, canvasContext } = t.init2DCanvasContentWithColorSpace({
       width,
       height,
-      paintOpaqueRects: true,
       colorSpace: srcColorSpace,
     });
 
@@ -828,7 +766,8 @@ g.test('color_space_conversion')
       sourcePixels,
       width,
       height,
-      dstColorFormat,
+      // copyExternalImageToTexture does not perform gamma-encoding into `-srgb` formats.
+      kTextureFormatInfo[dstColorFormat].baseFormat ?? dstColorFormat,
       srcDoFlipYDuringCopy,
       {
         srcPremultiplied: false,
@@ -845,7 +784,7 @@ g.test('color_space_conversion')
     if (srcColorSpace !== dstColorSpace) {
       // Color space conversion seems prone to errors up to about 0.0003 on f32, 0.0007 on f16.
       texelCompareOptions.maxFractionalDiff = 0.001;
-    } else if (dstPremultiplied) {
+    } else {
       texelCompareOptions.maxDiffULPsForFloatFormat = 1;
     }