third_party/WebKit/LayoutTests/fast/canvas/imagebitmap/transferFromImageBitmap-nullability.html - Issue 2464093002: Revert of Consolidate implementation of ImageBitmapRenderingContext

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Issue 2464093002: Revert of Consolidate implementation of ImageBitmapRenderingContext (Closed)

Patch Set: 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(ctx, r, g, b, a) {	5

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

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

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

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

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

	11 assert_equals(colorData[3], 255);

11 }	12 }

12	13

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

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

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

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

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

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

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);

42 }	20 }

43	21

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

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

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

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

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

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

	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);

50 }	51 }

51	52

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

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

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

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

	57 ctx.fillStyle = '#0f0';

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

	59 testCanvas_0f0(ctx);

56	60

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

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 });

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

68	63

69 </script>	64 </script>

70	65

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