third_party/WebKit/PerformanceTests/Canvas/draw-static-webgl-to-hw-accelerated-canvas-2d.html - Issue 2126013002: Fix canvas blink_perf tests to avoid GPU fallback

Side by Side Diff: third_party/WebKit/PerformanceTests/Canvas/draw-static-webgl-to-hw-accelerated-canvas-2d.html

Issue 2126013002: Fix canvas blink_perf tests to avoid GPU fallback (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: whoops Created 4 years, 5 months ago

Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.

Jump to:

View unified diff | Download patch

« no previous file with comments | « third_party/WebKit/PerformanceTests/Canvas/draw-static-canvas-2d-to-hw-accelerated-canvas-2d.html ('k') | third_party/WebKit/PerformanceTests/Canvas/draw-video-to-hw-accelerated-canvas-2d.html » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Hide Comments ('s')

OLD	NEW
1 <!DOCTYPE html>	1 <!DOCTYPE html>

2 <html>	2 <html>

3 <body>	3 <body>

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

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

6 <script>	6 <script>

7 var canvas2D = document.createElement("canvas");	7 var canvas2D = document.createElement("canvas");

8 var ctx2D = canvas2D.getContext("2d");	8 var ctx2D = canvas2D.getContext("2d");

9 var canvas3D = document.createElement('canvas');	9 var canvas3D = document.createElement('canvas');

10 var gl = canvas3D.getContext('webgl');	10 var gl = canvas3D.getContext('webgl');

11 if (!gl)	11 if (!gl)

12 CanvasRunner.logFatalError("WebGL is not supported or enabled on this platfo rm!");	12 CanvasRunner.logFatalError("WebGL is not supported or enabled on this platfo rm!");

13	13

	14 var dummyCanvas2D = document.createElement("canvas");

	15 var dummyCtx2D = dummyCanvas2D.getContext("2d");

	16

	17 dummyCanvas2D.width = 1;

	18 dummyCanvas2D.height = 1;

	19

14 function setSize(canvas2DWidth, canvas2DHeight, webglWidth, webglHeight) {	20 function setSize(canvas2DWidth, canvas2DHeight, webglWidth, webglHeight) {

15 canvas2D.width = canvas2DWidth;	21 canvas2D.width = canvas2DWidth;

16 canvas2D.height = canvas2DHeight;	22 canvas2D.height = canvas2DHeight;

17 canvas3D.width = webglWidth;	23 canvas3D.width = webglWidth;

18 canvas3D.height = webglHeight;	24 canvas3D.height = webglHeight;

19 }	25 }

20	26

21 function rand(range) {	27 function rand(range) {

22 return Math.floor(Math.random() * range);	28 return Math.floor(Math.random() * range);

23 }	29 }

24	30

25 function renderWebGL(gl) {	31 function renderWebGL(gl) {

26 gl.disable(gl.SCISSOR_TEST);	32 gl.disable(gl.SCISSOR_TEST);

27 gl.clear(gl.COLOR_BUFER_BIT);	33 gl.clear(gl.COLOR_BUFER_BIT);

28 gl.enable(gl.SCISSOR_TEST);	34 gl.enable(gl.SCISSOR_TEST);

29 gl.scissor(rand(1024), rand(1024), rand(1024), rand(1024));	35 gl.scissor(rand(1024), rand(1024), rand(1024), rand(1024));

30 gl.clearColor(Math.random(), Math.random(), Math.random(), 1);	36 gl.clearColor(Math.random(), Math.random(), Math.random(), 1);

31 gl.clear(gl.COLOR_BUFFER_BIT);	37 gl.clear(gl.COLOR_BUFFER_BIT);

32 }	38 }

33	39

34 function doRun() {	40 function doRun() {

35 // draw static WebGL	41 // draw static WebGL

36 ctx2D.drawImage(canvas3D, 0, 0);	42 ctx2D.drawImage(canvas3D, 0, 0);

37 }	43 }

38	44

39 function ensureComplete() {	45 function ensureComplete() {

40 // Calling getImageData() is just to flush out the content when	46 // Using destCanvas2D as a source image is just to flush out the content whe n

41 // accelerated 2D canvas is in use. The cost of reading 1x1 pixels is low.	47 // accelerated 2D canvas is in use.

42 ctx2D.getImageData(0, 0, 1, 1);	48 dummyCtx2D.drawImage(destCanvas2D, 0, 0, 1, 1, 0, 0, 1, 1);

43 }	49 }

44	50

45 window.onload = function () {	51 window.onload = function () {

46 // It should use setMinimumAccelerated2dCanvasSize() to enable accelerated C anvas for a specified size	52 // It should use setMinimumAccelerated2dCanvasSize() to enable accelerated C anvas for a specified size

47 // but this API is not available in JS or WebPage. Assume the threshold size is 256x257	53 // but this API is not available in JS or WebPage. Assume the threshold size is 256x257

48 // and the dest canvas is HW accelerated Canvas when setting its size to 102 4x1024.	54 // and the dest canvas is HW accelerated Canvas when setting its size to 102 4x1024.

49 setSize(1024, 1024, 1024, 1024);	55 setSize(1024, 1024, 1024, 1024);

50 renderWebGL(gl);	56 renderWebGL(gl);

51 CanvasRunner.start({	57 CanvasRunner.start({

52 description: "This bench test checks the speed on drawing static WebGL(1 024x1024) to HW accelerated Canvas2D(1024x1024).",	58 description: "This bench test checks the speed on drawing static WebGL(1 024x1024) to HW accelerated Canvas2D(1024x1024).",

53 doRun: doRun,	59 doRun: doRun,

54 ensureComplete: ensureComplete});	60 ensureComplete: ensureComplete});

55 }	61 }

56	62

57 </script>	63 </script>

58 </body>	64 </body>

59 </html>	65 </html>

OLD	NEW