third_party/WebKit/LayoutTests/fast/canvas/imagebitmap/transferFromImageBitmap-drawImage.html - Issue 2459233002: Consolidate implementation of ImageBitmapRenderingContext

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Issue 2459233002: Consolidate implementation of ImageBitmapRenderingContext (Closed)

Patch Set: fix a layout test failure Created 4 years, 1 month ago

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1 <!DOCTYPE html>	1 <!DOCTYPE html>

2 <script src="../../../resources/testharness.js"></script>	2 <script src="../../../resources/testharness.js"></script>

3 <script src="../../../resources/testharnessreport.js"></script>	3 <script src="../../../resources/testharnessreport.js"></script>

4 <script>	4 <script>

	5 function testCanvas_0f0(ctx) {

	6 var colorData = ctx.getImageData(50, 50, 1, 1).data;

	7 assert_equals(colorData[0], 0);

	8 assert_equals(colorData[1], 255);

	9 assert_equals(colorData[2], 0);

	10 assert_equals(colorData[3], 255);

	11 }

5	12

6 function testCanvas_0f0(ctx) {	13 function testException(image) {

7 var colorData = ctx.getImageData(50, 50, 1, 1).data;	14 var dstCanvas = document.createElement('canvas');

8 assert_equals(colorData[0], 0);	15 dstCanvas.width = dstCanvas.height = 100;

9 assert_equals(colorData[1], 255);	16 var dstCtx = dstCanvas.getContext('bitmaprenderer');

10 assert_equals(colorData[2], 0);	17 assert_true(dstCtx instanceof ImageBitmapRenderingContext);

11 assert_equals(colorData[3], 255);	18 dstCtx.transferFromImageBitmap(image);

	19

	20 // image is detached after calling transferFromImageBitmap,

	21 // so call transferFromImageBitmap(image) should throw InvalidStateError

	22 assert_throws("InvalidStateError", function() {dstCtx.transferFromImageBitma p(image);});

12 }	23 }

13	24

14 function testDrawCanvasWithImageBitamp(image) {	25 function testDrawCanvasWithImageBitamp(image) {

15 var dstCanvas = document.createElement('canvas');	26 var dstCanvas = document.createElement('canvas');

16 dstCanvas.width = dstCanvas.height = 100;	27 dstCanvas.width = dstCanvas.height = 100;

17 var dstCtx = dstCanvas.getContext('bitmaprenderer');	28 var dstCtx = dstCanvas.getContext('bitmaprenderer');

18 dstCtx.transferFromImageBitmap(image);	29 assert_true(dstCtx instanceof ImageBitmapRenderingContext);

	30 dstCtx.transferFromImageBitmap(image);

19	31

20 var myCanvas = document.createElement('canvas');	32 // Calling dstCtx.canvas should get the same canvas as the dstCanvas

21 myCanvas.width = myCanvas.height = 100;	33 var testCanvas = dstCtx.canvas;

22 var myCtx = myCanvas.getContext('2d');	34 assert_equals(dstCanvas.width, testCanvas.width);

23 myCtx.drawImage(dstCanvas, 10, 10);	35 assert_equals(dstCanvas.height, testCanvas.height);

24 testCanvas_0f0(myCtx);	36

	37 // After transferFromImageBitmap, image's width && height should be 0

	38 assert_equals(image.width, 0);

	39 assert_equals(image.height, 0);

	40

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

	42 myCanvas.width = myCanvas.height = 100;

	43 var myCtx = myCanvas.getContext('2d');

	44 myCtx.drawImage(dstCanvas, 10, 10);

	45 testCanvas_0f0(myCtx);

25 }	46 }

26	47

27 promise_test(function() {	48 promise_test(function() {

28 var canvas = document.createElement('canvas');	49 var canvas = document.createElement('canvas');

29 canvas.width = canvas.height = 100;	50 canvas.width = canvas.height = 100;

30 var ctx = canvas.getContext('2d');	51 var ctx = canvas.getContext('2d');

31 ctx.fillStyle = '#0f0';	52 ctx.fillStyle = '#0f0';

32 ctx.fillRect(0, 0, 100, 100);	53 ctx.fillRect(0, 0, 100, 100);

33 testCanvas_0f0(ctx);	54 testCanvas_0f0(ctx);

34	55

35 return createImageBitmap(canvas).then(testDrawCanvasWithImageBitamp);	56 return createImageBitmap(canvas).then(testDrawCanvasWithImageBitamp);

36 }, 'testDrawCanvasWithImageBitamp should not return any error');	57 }, 'testDrawCanvasWithImageBitamp should not return any error');

37	58

	59 promise_test(function() {

	60 var canvas = document.createElement('canvas');

	61 canvas.width = canvas.height = 100;

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

	63 ctx.fillStyle = '#0f0';

	64 ctx.fillRect(0, 0, 100, 100);

	65

	66 return createImageBitmap(canvas).then(testException);

	67 }, 'transferFromImageBitmap(image) with a neutered image should throw InvalidSta teError');

	68

38 </script>	69 </script>

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