| <html> |
| <head> |
| <title>Ensure correct behavior of drawImage video elements on both software canvas and accelerated canvas. crbug.com/424591</title> |
| <!-- |
| This test is made to check a video bug rather than a canvas bug. When we use both sw |
| canvas and hw canvas, the video bug appears. |
| The video impl has its own cache mechanism to cache SkBitmap after converting |
| video frame to SkBitmap. |
| When hw canvas draws video, video caches SkBitmap backed on GrTexture. When sw |
| canvas draws video, video caches SkBitmap backed on system memory. |
| The problem appears when we draws the video on both hw canvas and sw canvas. |
| When hw canvas draws, the video caches GrTexture based SkBitmap. and then when |
| sw canvas draws, the video draws GrTexture based SkBitmap on sw canvas. |
| Otherwise, if sw canvas draws prior, the video draws system memory SkBitmap on |
| hw canvas. |
| 'loop' attribute makes video be played hundreds times per second, which reveals |
| crbug.com/455235 |
| --> |
| <style type="text/css"> |
| video { |
| display: none; |
| } |
| </style> |
| </head> |
| <body> |
| <canvas id="hw-canvas" width=300 height=300></canvas> |
| <canvas id="sw-canvas" width=150 height=150></canvas> |
| <video id="video" loop> |
| <source src="resources/canvas_video.webm" type='video/webm' /> |
| <source src="resources/canvas_video.mp4" type='video/mp4' /> |
| <source src="resources/canvas_video.ogv" type='video/ogg' /> |
| </video> |
| <script> |
| if (window.testRunner) { |
| testRunner.dumpAsTextWithPixelResults(); |
| testRunner.waitUntilDone(); |
| } |
| if (window.internals) |
| window.internals.settings.setMinimumAccelerated2dCanvasSize(257*256); |
| |
| var hw_canvas = document.getElementById("hw-canvas"); |
| var hw_ctx = hw_canvas.getContext("2d"); |
| // Although enabling accelerated-2d-canvas, canvas with the dimension |
| // less than 257*256 is not accelerated. |
| var sw_canvas = document.getElementById("sw-canvas"); |
| var sw_ctx = sw_canvas.getContext("2d"); |
| |
| var video = document.getElementById("video"); |
| video.addEventListener("playing", drawImageToCanvas, true); |
| video.play(); |
| |
| function drawVideo(ctx, canvas) { |
| ctx.globalAlpha = 1; |
| ctx.fillStyle = "blue"; |
| ctx.fillRect(0, 0, canvas.width, canvas.width); |
| ctx.drawImage(video, 0, 0); |
| ctx.globalAlpha = 0.5; |
| ctx.drawImage(video, 0, 60); |
| } |
| |
| function drawImageToCanvas() { |
| video.removeEventListener("playing", drawImageToCanvas, true); |
| for (i = 0; i < 10; i++) { |
| drawVideo(sw_ctx, sw_canvas); |
| drawVideo(hw_ctx, hw_canvas); |
| } |
| if (window.testRunner) |
| testRunner.notifyDone(); |
| } |
| </script> |
| </body> |
| </html> |
