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| (Empty) | |
| 1 <!-- This is a test for crbug.com/392765, in which Copy image for |
| 2 WebGL elements were crashing. Must be run with the threaded |
| 3 compositor enabled. --> |
| 4 <head> |
| 5 <script src="../../resources/js-test.js"></script> |
| 6 <script> |
| 7 |
| 8 function main() |
| 9 { |
| 10 if (!window.testRunner) { |
| 11 testFailed("Requires window.testRunner"); |
| 12 } else { |
| 13 testRunner.waitUntilDone(); |
| 14 testRunner.dumpAsText(); |
| 15 window.requestAnimationFrame(initTest); |
| 16 } |
| 17 } |
| 18 |
| 19 var tolerance = 1; |
| 20 |
| 21 function initTest() { |
| 22 var canvas = document.getElementById("c"); |
| 23 var gl = canvas.getContext("webgl"); |
| 24 if (!gl) { |
| 25 testFailed("Test requires WebGL"); |
| 26 testRunner.notifyDone(); |
| 27 return; |
| 28 } |
| 29 |
| 30 gl.clearColor(1, 0, 0, 1); |
| 31 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); |
| 32 |
| 33 window.requestAnimationFrame(runTest); |
| 34 } |
| 35 |
| 36 function runTest() { |
| 37 try { |
| 38 testRunner.copyImageAtAndCapturePixelsAsyncThen(50, 50, completionCallback); |
| 39 } catch (e) { |
| 40 debug('error in runTest'); |
| 41 debug(e); |
| 42 testRunner.notifyDone(); |
| 43 } |
| 44 } |
| 45 |
| 46 var pixel; |
| 47 function fetchPixelAt(x, y, width, height, snapshot) { |
| 48 var data = new Uint8Array(snapshot); |
| 49 pixel = [ |
| 50 data[4 * (width * y + x) + 0], |
| 51 data[4 * (width * y + x) + 1], |
| 52 data[4 * (width * y + x) + 2], |
| 53 data[4 * (width * y + x) + 3] |
| 54 ]; |
| 55 } |
| 56 |
| 57 function completionCallback(width, height, snapshot) { |
| 58 try { |
| 59 fetchPixelAt(50, 50, width, height, snapshot); |
| 60 shouldBeCloseTo('pixel[0]', 255, tolerance); |
| 61 shouldBeCloseTo('pixel[1]', 0, tolerance); |
| 62 shouldBeCloseTo('pixel[2]', 0, tolerance); |
| 63 } catch (e) { |
| 64 debug('error in completionCallback'); |
| 65 debug(e); |
| 66 testRunner.notifyDone(); |
| 67 return; |
| 68 } |
| 69 testRunner.notifyDone(); |
| 70 } |
| 71 |
| 72 main(); |
| 73 </script> |
| 74 </head> |
| 75 <body> |
| 76 <canvas id="c" width="200" height="200" class="nomargin"></canvas> |
| 77 <div id="console"></div> |
| 78 </body> |
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Chromium Code Reviews
Issue 389273002:
Fix copyImage for WebGL elements. (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master