forked from mirrors/gecko-dev
5b4082637f
Automatic update from web-platform-tests Reland "Reland "Adding support to bitmaprenderer in OffscreenCanvas"" Registering the factory on OffscreenCanvas in modules, adding ImageBitmapRenderer to the union type for OffscreenCanvas. Adding new functionality to bitmaprenderer to let it be used in offscreencanvas. Changing IDL and some tests to validate new functionality. Adding a new virtual test to guarantee testing validation of trasnsfertooffscreencanvas for bitmaprenderer. Added bug: 969151 for the two missing tests. TBR=chrishtr Bug: 907141 Change-Id: I7c611952686aabdf2eb3df8ffe5ca73a69ae97f6 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1638919 Reviewed-by: Fernando Serboncini <fserb@chromium.org> Commit-Queue: Fernando Serboncini <fserb@chromium.org> Commit-Queue: Juanmi Huertas <juanmihd@chromium.org> Cr-Commit-Position: refs/heads/master@{#665260} -- wp5At-commits: 209c15ce44be1c7a9059167676843e1a711a2734 wpt-pr: 17121
64 lines
2.4 KiB
HTML
64 lines
2.4 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>Canvas's ImageBitmapRenderingContext test</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<link rel="help" href="https://html.spec.whatwg.org/multipage/scripting.html#the-imagebitmap-rendering-context">
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<script>
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var width = 10;
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var height = 10;
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function testImageBitmap(image, opts, expectedR, expectedG, expectedB, expectedA)
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{
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var dstCanvas = document.createElement('canvas');
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dstCanvas.width = width;
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dstCanvas.height = height;
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var dstCtx = dstCanvas.getContext('bitmaprenderer', opts);
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dstCtx.transferFromImageBitmap(image);
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var myCanvas = document.createElement('canvas');
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myCanvas.width = width;
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myCanvas.height = height;
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var myCtx = myCanvas.getContext('2d');
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myCtx.drawImage(dstCanvas, 0, 0);
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var color = myCtx.getImageData(5, 5, 1, 1).data;
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assert_array_approx_equals(color, [expectedR, expectedG, expectedB, expectedA],1);
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}
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promise_test(function() {
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var srcCanvas = document.createElement('canvas');
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srcCanvas.width = width;
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srcCanvas.height = height;
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var ctx = srcCanvas.getContext('2d');
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ctx.fillStyle = 'rgba(0, 255, 0, 0.5)';
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ctx.fillRect(0, 0, width, height);
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return createImageBitmap(srcCanvas).then(function(image) {
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testImageBitmap(image, {alpha: false}, 0, 255, 0, 128);
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});
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}, "Test that an ImageBitmapRenderingContext with alpha disabled makes the canvas opaque");
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promise_test(function() {
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var srcCanvas = document.createElement('canvas');
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srcCanvas.width = width;
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srcCanvas.height = height;
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var ctx = srcCanvas.getContext('2d');
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ctx.fillStyle = 'rgba(0, 255, 0, 0.5)';
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ctx.fillRect(0, 0, width, height);
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return createImageBitmap(srcCanvas).then(function(image) {
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testImageBitmap(image, {alpha: true}, 0, 255, 0, 128);
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});
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}, "Test that an ImageBitmapRenderingContext with alpha enabled preserves the alpha");
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promise_test(function() {
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var srcCanvas = document.createElement('canvas');
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srcCanvas.width = width;
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srcCanvas.height = height;
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var ctx = srcCanvas.getContext('2d');
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ctx.fillStyle = 'rgba(0, 255, 0, 0.5)';
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ctx.fillRect(0, 0, width, height);
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return createImageBitmap(srcCanvas).then(function(image) {
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testImageBitmap(image, {}, 0, 255, 0, 128);
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});
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}, "Test that the 'alpha' context creation attribute is true by default");
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</script>
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