| Index: third_party/WebKit/LayoutTests/fast/canvas/canvas-ImageBitmap-transferable.html
|
| diff --git a/third_party/WebKit/LayoutTests/fast/canvas/canvas-ImageBitmap-transferable.html b/third_party/WebKit/LayoutTests/fast/canvas/canvas-ImageBitmap-transferable.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..2114d7f7cdec3cbea8f806c2bc797b819c430c35
|
| --- /dev/null
|
| +++ b/third_party/WebKit/LayoutTests/fast/canvas/canvas-ImageBitmap-transferable.html
|
| @@ -0,0 +1,94 @@
|
| +<!DOCTYPE html>
|
| +<html>
|
| +<body>
|
| +<canvas id="canvas" width="3" height="2"></canvas>
|
| +<script src="../../resources/js-test.js"></script>
|
| +<script>
|
| +jsTestIsAsync = true;
|
| +var worker = new Worker('./resources/canvas-ImageBitmap-transferable.js');
|
| +
|
| +description("Tests that ImageBitmap is transferable and that the pixel data survives the trip, as well as createImageBitmap(ImageBitmap) works on worker thread");
|
| +
|
| +var imageWidth = 3;
|
| +var imageHeight = 2;
|
| +var bitmapWidth;
|
| +var bitmapHeight;
|
| +var newImage;
|
| +var newImageBitmap;
|
| +var image = new ImageData(new Uint8ClampedArray(
|
| + [255, 0, 0, 255,
|
| + 0, 255, 0, 255,
|
| + 255, 255, 255, 127,
|
| + 0, 0, 0, 64,
|
| + 12, 34, 56, 64,
|
| + 12, 34, 56, 127]),
|
| + imageWidth, imageHeight);
|
| +var context = document.getElementById("canvas").getContext("2d");
|
| +
|
| +createImageBitmap(image).then(imageBitmap => {
|
| + bitmapWidth = imageBitmap.width;
|
| + bitmapHeight = imageBitmap.height;
|
| + shouldBe("bitmapWidth", "imageWidth");
|
| + shouldBe("bitmapHeight", "imageHeight");
|
| +
|
| + worker.postMessage({data: imageBitmap}, [imageBitmap]);
|
| +
|
| + // ImageBitmap has been transfered to worker, main thread loses ownership
|
| + // of it, so the width and height should be 0 now.
|
| + bitmapWidth = imageBitmap.width;
|
| + bitmapHeight = imageBitmap.height;
|
| + shouldBe("bitmapWidth", "0");
|
| + shouldBe("bitmapHeight", "0");
|
| +});
|
| +
|
| +worker.onmessage = function(e) {
|
| + newImageBitmap = e.data.data;
|
| + bitmapWidth = newImageBitmap.width;
|
| + bitmapHeight = newImageBitmap.height;
|
| +
|
| + // Getting the ImageBitmap back from the worker thread
|
| + shouldBe("bitmapWidth", "imageWidth");
|
| + shouldBe("bitmapHeight", "imageHeight");
|
| +
|
| + context.drawImage(newImageBitmap, 0, 0);
|
| + newImage = context.getImageData(0, 0, imageWidth, imageHeight);
|
| +
|
| + // newImage is not necessary the same as imageData because of
|
| + // multiplying and dividing by alpha during the round trip, but
|
| + // they should be close.
|
| + // The alpha channel should be exactly the same.
|
| + shouldBeCloseTo("newImage.data[0]", "image.data[0]", 5);
|
| + shouldBeCloseTo("newImage.data[1]", "image.data[1]", 5);
|
| + shouldBeCloseTo("newImage.data[2]", "image.data[2]", 5);
|
| + shouldBe("newImage.data[3]", "image.data[3]");
|
| +
|
| + shouldBeCloseTo("newImage.data[4]", "image.data[4]", 5);
|
| + shouldBeCloseTo("newImage.data[5]", "image.data[5]", 5);
|
| + shouldBeCloseTo("newImage.data[6]", "image.data[6]", 5);
|
| + shouldBe("newImage.data[7]", "image.data[7]");
|
| +
|
| + shouldBeCloseTo("newImage.data[8]", "image.data[8]", 5);
|
| + shouldBeCloseTo("newImage.data[9]", "image.data[9]", 5);
|
| + shouldBeCloseTo("newImage.data[10]", "image.data[10]", 5);
|
| + shouldBe("newImage.data[11]", "image.data[11]");
|
| +
|
| + shouldBeCloseTo("newImage.data[12]", "image.data[12]", 5);
|
| + shouldBeCloseTo("newImage.data[13]", "image.data[13]", 5);
|
| + shouldBeCloseTo("newImage.data[14]", "image.data[14]", 5);
|
| + shouldBe("newImage.data[15]", "image.data[15]");
|
| +
|
| + shouldBeCloseTo("newImage.data[16]", "image.data[16]", 5);
|
| + shouldBeCloseTo("newImage.data[17]", "image.data[17]", 5);
|
| + shouldBeCloseTo("newImage.data[18]", "image.data[18]", 5);
|
| + shouldBe("newImage.data[19]", "image.data[19]");
|
| +
|
| + shouldBeCloseTo("newImage.data[20]", "image.data[20]", 5);
|
| + shouldBeCloseTo("newImage.data[21]", "image.data[21]", 5);
|
| + shouldBeCloseTo("newImage.data[22]", "image.data[22]", 5);
|
| + shouldBe("newImage.data[23]", "image.data[23]");
|
| + finishJSTest();
|
| +}
|
| +
|
| +</script>
|
| +</body>
|
| +</html>
|
|
|
Chromium Code Reviews
Issue 1423513005:
Reland of: Make Imagebitmap Transferable (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master