third_party/WebKit/LayoutTests/imported/wpt/imagebitmap-renderingcontext/bitmaprenderer-as-imagesource.html - Issue 2502433002: Import wpt@8dc7bfef80f5df47e14509d1496bdbc5ec24c91c

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Issue 2502433002: Import wpt@8dc7bfef80f5df47e14509d1496bdbc5ec24c91c (Closed)

Patch Set: Modify TestExpectations or download new baselines for tests. Created 4 years, 1 month ago

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	1 <!DOCTYPE html>

	2 <meta charset="utf-8">

	3 <title>Canvas's ImageBitmapRenderingContext test</title>

	4 <script src="/resources/testharness.js"></script>

	5 <script src="/resources/testharnessreport.js"></script>

	6 <link rel="help" href="https://html.spec.whatwg.org/multipage/scripting.html#the -imagebitmap-rendering-context">

	7 <script>

	8 var width = 10;

	9 var height = 10;

	10

	11 function testCanvas(ctx, x, y, r, g, b, a)

	12 {

	13 var color = ctx.getImageData(x, y, 1, 1).data;

	14 assert_array_equals(color, [r, g, b, a]);

	15 }

	16

	17 function consumeImageBitmap(image, t)

	18 {

	19 var myCanvas = document.createElement('canvas');

	20 myCanvas.width = myCanvas.height = 20;

	21 var myCtx = myCanvas.getContext('bitmaprenderer');

	22 myCtx.transferFromImageBitmap(image);

	23

	24 createImageBitmap(myCanvas).then(t.step_func_done(function(imageBitmap) {

	25 // Per spec, when transferFromImageBitmap happens, the transferred

	26 // ImageBitmap (\|image\| here) should be the intrinsic size of

	27 // myCanvas, and hence myCanvas.width/height is ignored. Therefore,

	28 // this created \|imageBitmap\| should have the same size as the \|image\|.

	29 assert_equals(imageBitmap.width, width);

	30 assert_equals(imageBitmap.height, height);

	31

	32 var dstCanvas = document.createElement('canvas');

	33 dstCanvas.width = dstCanvas.height = 20;

	34 var dstCtx = dstCanvas.getContext('2d');

	35 dstCtx.drawImage(myCanvas, 0, 0);

	36 testCanvas(dstCtx, 5, 5, 0, 255, 0, 255);

	37 testCanvas(dstCtx, 15, 15, 0, 0, 0, 0);

	38 }));

	39 }

	40

	41 async_test(function(t) {

	42 var canvas = document.createElement("canvas");

	43 canvas.width = width;

	44 canvas.height = height;

	45 var ctx = canvas.getContext('2d');

	46 ctx.fillStyle = '#0f0';

	47 ctx.fillRect(0, 0, width, height);

	48 createImageBitmap(canvas).then(t.step_func(function(image) {

	49 consumeImageBitmap(image, t);

	50 }));

	51 }, 'Test that createImageBitmap from a bitmaprenderer canvas produces correct re sult');

	52

	53 async_test(function(t) {

	54 var canvas = document.createElement("canvas");

	55 canvas.width = width;

	56 canvas.height = height;

	57 var ctx = canvas.getContext('bitmaprenderer');

	58 createImageBitmap(canvas).then(t.step_func_done(function(image) {

	59 assert_equals(image.width, width);

	60 assert_equals(image.height, height);

	61

	62 var dstCanvas = document.createElement('canvas');

	63 dstCanvas.width = width;

	64 dstCanvas.height = height;

	65 var dstCtx = dstCanvas.getContext('2d');

	66 dstCtx.drawImage(canvas, 0, 0);

	67 testCanvas(dstCtx, 5, 5, 0, 0, 0, 0);

	68 }));

	69 }, 'Test that createImageBitmap on a bitmaprenderer canvas that never consumes a ny source produces correct result');

	70

	71

	72 async_test(function(t) {

	73 var canvas = document.createElement("canvas");

	74 canvas.width = width;

	75 canvas.height = height;

	76 var ctx = canvas.getContext('bitmaprenderer');

	77 ctx.transferFromImageBitmap(null);

	78 createImageBitmap(canvas).then(t.step_func_done(function(image) {

	79 assert_equals(image.width, width);

	80 assert_equals(image.height, height);

	81

	82 var dstCanvas = document.createElement('canvas');

	83 dstCanvas.width = width;

	84 dstCanvas.height = height;

	85 var dstCtx = dstCanvas.getContext('2d');

	86 dstCtx.drawImage(canvas, 0, 0);

	87 testCanvas(dstCtx, 5, 5, 0, 0, 0, 0);

	88 }));

	89 }, 'Test that createImageBitmap on a bitmaprenderer canvas that consumes null pr oduces correct result');

	90 </script>

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