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| 1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
| 2 <html> | 2 <html> |
| 3 <body> | 3 <body> |
| 4 <video id="video" loop></video> | 4 <video id="video" loop></video> |
| 5 <script src="../resources/runner.js"></script> | 5 <script src="../resources/runner.js"></script> |
| 6 <script src="resources/canvas_runner.js"></script> | 6 <script src="resources/canvas_runner.js"></script> |
| 7 <script> | 7 <script> |
| 8 var videoElement = document.getElementById("video"); | 8 var videoElement = document.getElementById("video"); |
| 9 var destCanvas2D = document.createElement("canvas"); | 9 var destCanvas2D = document.createElement("canvas"); |
| 10 var destCtx2D = destCanvas2D.getContext("2d"); | 10 var destCtx2D = destCanvas2D.getContext("2d"); |
| 11 | 11 |
| 12 function setSize(width, height) { | 12 function setSize(width, height) { |
| 13 destCanvas2D.width = width; | 13 destCanvas2D.width = width; |
| 14 destCanvas2D.height = height; | 14 destCanvas2D.height = height; |
| 15 } | 15 } |
| 16 | 16 |
| 17 function addPlayCallback(videoElement) { | |
| 18 // This logic makes sure this perf test starts after playing the video. | |
| 19 videoElement.addEventListener("canplaythrough", startVideo, true); | |
| 20 videoElement.addEventListener("play", startPerfTest, true); | |
| 21 videoElement.addEventListener('error', function(ev) { | |
| 22 CanvasRunner.logFatalError("\nmp4 codec is not supported on this platfor
m. Received error event:" + ev.target.error.code + "\n"); | |
| 23 }, false); | |
| 24 videoElement.src = "../resources/bear-1280x720.mp4"; | |
| 25 } | |
| 26 | |
| 27 function startVideo() { | |
| 28 // loop can emit this event again. | |
| 29 videoElement.removeEventListener("canplaythrough", startVideo, true); | |
| 30 videoElement.play(); | |
| 31 } | |
| 32 | |
| 33 function startPerfTest() { | 17 function startPerfTest() { |
| 34 CanvasRunner.start({ | 18 CanvasRunner.start({ |
| 35 description: "This bench test checks the speed on drawing Video element
to HW accelerated Canvas2D(1024x1024).", | 19 description: "This bench test checks the speed on drawing Video element
to HW accelerated Canvas2D(1024x1024).", |
| 36 doRun: doRun, | 20 doRun: doRun, |
| 37 ensureComplete: ensureComplete}); | 21 ensureComplete: ensureComplete}); |
| 38 } | 22 } |
| 39 | 23 |
| 40 function doRun() { | 24 function doRun() { |
| 41 // draw Video | 25 // draw Video |
| 42 destCtx2D.drawImage(videoElement, 0, 0); | 26 destCtx2D.drawImage(videoElement, 0, 0); |
| 43 } | 27 } |
| 44 | 28 |
| 45 function ensureComplete() { | 29 function ensureComplete() { |
| 46 // Calling getImageData() is just to flush out the content when | 30 // Calling getImageData() is just to flush out the content when |
| 47 // accelerated 2D canvas is in use. The cost of reading 1x1 pixels is low. | 31 // accelerated 2D canvas is in use. The cost of reading 1x1 pixels is low. |
| 48 destCtx2D.getImageData(0, 0, 1, 1); | 32 destCtx2D.getImageData(0, 0, 1, 1); |
| 49 } | 33 } |
| 50 | 34 |
| 51 window.onload = function () { | 35 window.onload = function () { |
| 52 // It should use setMinimumAccelerated2dCanvasSize() to enable accelerated C
anvas for a specified size | 36 // It should use setMinimumAccelerated2dCanvasSize() to enable accelerated C
anvas for a specified size |
| 53 // but this API is not available in JS or WebPage. Assume the threshold size
is 256x257 | 37 // but this API is not available in JS or WebPage. Assume the threshold size
is 256x257 |
| 54 // and the dest canvas is HW accelerated Canvas when setting its size to 102
4x1024. | 38 // and the dest canvas is HW accelerated Canvas when setting its size to 102
4x1024. |
| 55 setSize(1024, 1024); | 39 setSize(1024, 1024); |
| 56 addPlayCallback(videoElement); | 40 |
| 41 videoElement.src = "resources/bear-1280x720.mp4"; |
| 42 if(!videoElement.canPlayType('video/mp4').replace(/no/, '')) { |
| 43 CanvasRunner.logFatalError("video/mp4 is unsupported"); |
| 44 }; |
| 45 CanvasRunner.startPlayingAndWaitForVideo(videoElement, startPerfTest); |
| 57 } | 46 } |
| 58 | 47 |
| 59 </script> | 48 </script> |
| 60 </body> | 49 </body> |
| 61 </html> | 50 </html> |
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