third_party/WebKit/PerformanceTests/Canvas/putImageData.html - Issue 2190523003: Fixing regression in putImageData blink perf test

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Issue 2190523003: Fixing regression in putImageData blink perf test (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: cp Created 4 years, 4 months ago

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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>	5 <script>

6

7 var canvas2D = document.createElement("canvas");	6 var canvas2D = document.createElement("canvas");

8 var ctx2D = canvas2D.getContext("2d");	7 var ctx2D = canvas2D.getContext("2d");

9 var imageData = null;	8 canvas2D.width = canvas2D.height = 1024;

10	9 var imageData = new ImageData(canvas2D.width, canvas2D.height);

11 function setSize(width, height) {

12 canvas2D.width = width;

13 canvas2D.height = height;

14 }

15

16 function rand(range) {

17 return Math.floor(Math.random() * range);

18 }

19

20 function fillCanvas(ctx2d, canvas2d) {

21 ctx2d.fillStyle = "rgba(" + rand(255) + "," + rand(255) + "," + rand(255) + "," + rand(255) + ")";

22 ctx2d.fillRect(0, 0, canvas2d.width, canvas2d.height);

23 }

24	10

25 function putImageDataToCanvas2D() {	11 function putImageDataToCanvas2D() {

26 ctx2D.putImageData(imageData, 0, 0);	12 ctx2D.putImageData(imageData, 0, 0);

27 }	13 }

28	14

29 setSize(1024, 1024);

30 fillCanvas(ctx2D, canvas2D);

31 imageData = ctx2D.getImageData(0, 0, canvas2D.width, canvas2D.height);

32

33 PerfTestRunner.measureRunsPerSecond({run: putImageDataToCanvas2D, description: " This bench test checks the speed on putting ImageData to Canvas2D(1024x1024)."}) ;	15 PerfTestRunner.measureRunsPerSecond({run: putImageDataToCanvas2D, description: " This bench test checks the speed on putting ImageData to Canvas2D(1024x1024)."}) ;

34	16

35 </script>	17 </script>

36 </body>	18 </body>

37 </html>	19 </html>

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