third_party/WebKit/LayoutTests/fast/canvas/imagebitmap/transferFromImageBitmap-nullability.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	5 function testCanvas(ctx, r, g, b, a) {

6 function testCanvas_0f0(ctx) {	6 var colorData = ctx.getImageData(50, 50, 1, 1).data;

7 var colorData = ctx.getImageData(50, 50, 1, 1).data;	7 assert_equals(colorData[0], r);

8 assert_equals(colorData[0], 0);	8 assert_equals(colorData[1], g);

9 assert_equals(colorData[1], 255);	9 assert_equals(colorData[2], b);

10 assert_equals(colorData[2], 0);	10 assert_equals(colorData[3], a);

11 assert_equals(colorData[3], 255);

12 }	11 }

13	12

14 function testCanvasReset(ctx) {	13 function testTransferFromImageBitmapNullability(image, image2) {

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

16 assert_equals(colorData[0], 0);	15 bitmapCanvas.width = bitmapCanvas.height = 100;

17 assert_equals(colorData[1], 0);	16 var bitmapCtx = bitmapCanvas.getContext('bitmaprenderer');

18 assert_equals(colorData[2], 0);	17 bitmapCtx.transferFromImageBitmap(image);

19 assert_equals(colorData[3], 0);	18

	19 // Make sure the bitmap renderer canvas is filled correctly.

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

	21 myCanvas.width = myCanvas.height = 100;

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

	23 myCtx.drawImage(bitmapCanvas, 0, 0);

	24 testCanvas(myCtx, 0, 255, 0, 255);

	25

	26 // Test if passing null resets the bitmap renderer canvas.

	27 // Drawing the resetted canvas cannot change the destination canvas.

	28 bitmapCtx.transferFromImageBitmap(null);

	29 var myCanvas2 = document.createElement('canvas');

	30 myCanvas2.width = myCanvas2.height = 100;

	31 var myCtx2 = myCanvas2.getContext('2d');

	32 myCtx2.drawImage(bitmapCanvas, 0, 0);

	33 testCanvas(myCtx2, 0, 0, 0, 0);

	34

	35 // Test if we can redraw the bitmap canvas correctly after reset.

	36 bitmapCtx.transferFromImageBitmap(image2);

	37 var myCanvas3 = document.createElement('canvas');

	38 myCanvas3.width = myCanvas3.height = 100;

	39 var myCtx3 = myCanvas3.getContext('2d');

	40 myCtx3.drawImage(bitmapCanvas, 0, 0);

	41 testCanvas(myCtx3, 255, 0, 0, 255);

20 }	42 }

21	43

22 function testTransferFromImageBitmapNullability(image) {	44 function fillCanvas(canvas, style, r, g, b)

23 var bitmapCanvas = document.createElement('canvas');	45 {

24 bitmapCanvas.width = bitmapCanvas.height = 100;	46 var ctx = canvas.getContext('2d');

25 var bitmapCtx = bitmapCanvas.getContext('bitmaprenderer');	47 ctx.fillStyle = style;

26 bitmapCtx.transferFromImageBitmap(image);	48 ctx.fillRect(0, 0, 100, 100);

27	49 testCanvas(ctx, r, g, b, 255);

28 // Make sure the bitmap renderer canvas is filled correctly.

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

30 myCanvas.width = myCanvas.height = 100;

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

32 myCtx.drawImage(bitmapCanvas, 0, 0);

33 testCanvas_0f0(myCtx);

34

35 // Test if passing null resets the bitmap renderer canvas.

36 // Drawing the resetted canvas cannot change the destination canvas.

37 bitmapCtx.transferFromImageBitmap(null);

38 var myCanvas2 = document.createElement('canvas');

39 myCanvas2.width = myCanvas2.height = 100;

40 var myCtx2 = myCanvas2.getContext('2d');

41 myCtx2.drawImage(bitmapCanvas, 0, 0);

42 testCanvasReset(myCtx2);

43

44 // Test if we can redraw the bitmap canvas correctly after reset.

45 bitmapCtx.transferFromImageBitmap(image);

46 var myCanvas3 = document.createElement('canvas');

47 myCanvas3.width = myCanvas3.height = 100;

48 var myCtx3 = myCanvas3.getContext('2d');

49 myCtx3.drawImage(bitmapCanvas, 0, 0);

50 testCanvas_0f0(myCtx3);

51 }	50 }

52	51

53 promise_test(function() {	52 promise_test(function() {

54 var canvas = document.createElement('canvas');	53 var canvas = document.createElement('canvas');

55 canvas.width = canvas.height = 100;	54 canvas.width = canvas.height = 100;

56 var ctx = canvas.getContext('2d');	55 fillCanvas(canvas, '#0f0', 0, 255, 0);

57 ctx.fillStyle = '#0f0';

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

59 testCanvas_0f0(ctx);

60	56

61 return createImageBitmap(canvas).then(testTransferFromImageBitmapNullability) ;	57 var canvas2 = document.createElement('canvas');

	58 canvas2.width = canvas2.height = 100;

	59 fillCanvas(canvas2, '#f00', 255, 0, 0);

	60

	61 return Promise.all([

	62 createImageBitmap(canvas),

	63 createImageBitmap(canvas2),

	64 ]).then(([image, image2]) => {

	65 testTransferFromImageBitmapNullability(image, image2);

	66 });

62 }, 'testTransferFromImageBitmapNullability should not return any error');	67 }, 'testTransferFromImageBitmapNullability should not return any error');

63	68

64 </script>	69 </script>

65	70

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