OLD | NEW |
1 <!DOCTYPE HTML> | 1 <!DOCTYPE HTML> |
2 | 2 |
3 <!-- READ BEFORE UPDATING: | 3 <!-- READ BEFORE UPDATING: |
4 If this test is updated make sure to increment the "revision" value of the | 4 If this test is updated make sure to increment the "revision" value of the |
5 associated test in content/test/gpu/gpu_tests/pixel_test_pages.py. This will ens
ure | 5 associated test in content/test/gpu/gpu_tests/pixel_test_pages.py. This will ens
ure |
6 that the baseline images are regenerated on the next run. | 6 that the baseline images are regenerated on the next run. |
7 --> | 7 --> |
8 | 8 |
9 <html> | 9 <html> |
10 <head> | 10 <head> |
(...skipping 45 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
56 gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([-.5,0, 0,.5, .5,0]), gl.STATI
C_DRAW); | 56 gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([-.5,0, 0,.5, .5,0]), gl.STATI
C_DRAW); |
57 var attr = gl.getAttribLocation(prog, 'pos'); | 57 var attr = gl.getAttribLocation(prog, 'pos'); |
58 gl.enableVertexAttribArray(attr); | 58 gl.enableVertexAttribArray(attr); |
59 gl.vertexAttribPointer(attr, 2, gl.FLOAT, false, 0, 0); | 59 gl.vertexAttribPointer(attr, 2, gl.FLOAT, false, 0, 0); |
60 | 60 |
61 gl.drawArrays(gl.TRIANGLE_STRIP, 0, 3); | 61 gl.drawArrays(gl.TRIANGLE_STRIP, 0, 3); |
62 } | 62 } |
63 | 63 |
64 function drawLoop() | 64 function drawLoop() |
65 { | 65 { |
66 if (g_frameNumber < 3) { | 66 if (g_frameNumber < 10) { |
67 gl.clearColor(1, 0, 0, 1); | |
68 gl.clear(gl.COLOR_BUFFER_BIT); | |
69 g_frameNumber++; | 67 g_frameNumber++; |
70 gl.commit().then(drawLoop); | 68 // Purposely intersperse overdraw and non-overdraw commit cases to see |
| 69 // if OffscreenCanvas commit() handles both cases well. |
| 70 if (0 == g_frameNumber % 2) { |
| 71 // When promise is used, the next drawLoop() is called after the first |
| 72 // frame is resolved; therefore there is no overdraw in this case. |
| 73 gl.commit().then(drawLoop); |
| 74 } else { |
| 75 // When the next drawLoop() is invoked regardless the promise resolve |
| 76 // status of the previous commit(), the frame committed in the next |
| 77 // drawLoop() is very likely to be overdrawn. |
| 78 gl.commit(); |
| 79 drawLoop(); |
| 80 } |
71 } else { | 81 } else { |
72 drawTriangle(); | 82 drawTriangle(); |
73 gl.commit(); | 83 gl.commit(); |
74 | 84 |
75 // The following clear is never committed | 85 // The following clear is never committed |
76 gl.clearColor(0, 0, 1, 1); | 86 gl.clearColor(0, 0, 1, 1); |
77 gl.clear(gl.COLOR_BUFFER_BIT); | 87 gl.clear(gl.COLOR_BUFFER_BIT); |
78 | 88 |
79 self.postMessage(""); | 89 self.postMessage(""); |
80 } | 90 } |
81 } | 91 } |
82 | 92 |
83 self.onmessage = function(e) { | 93 self.onmessage = function(e) { |
84 var transferredOffscreenCanvas = e.data; | 94 var transferredOffscreenCanvas = e.data; |
85 gl = transferredOffscreenCanvas.getContext("webgl"); | 95 gl = transferredOffscreenCanvas.getContext("webgl", {preserveDrawingBuffer: tr
ue}); |
| 96 gl.clearColor(1, 0, 0, 1); |
| 97 gl.clear(gl.COLOR_BUFFER_BIT); |
86 drawLoop(); | 98 drawLoop(); |
87 }; | 99 }; |
88 </script> | 100 </script> |
89 <script> | 101 <script> |
90 var g_swapsBeforeAck = 15; | 102 var g_swapsBeforeAck = 15; |
91 | 103 |
92 function makeWorker(script) { | 104 function makeWorker(script) { |
93 var blob = new Blob([script]); | 105 var blob = new Blob([script]); |
94 return new Worker(URL.createObjectURL(blob)); | 106 return new Worker(URL.createObjectURL(blob)); |
95 } | 107 } |
(...skipping 28 matching lines...) Expand all Loading... |
124 </script> | 136 </script> |
125 </head> | 137 </head> |
126 <body onload="main()"> | 138 <body onload="main()"> |
127 <div style="position:relative; width:300px; height:300px; background-color:white
"> | 139 <div style="position:relative; width:300px; height:300px; background-color:white
"> |
128 </div> | 140 </div> |
129 <div id="container" style="position:absolute; top:0px; left:0px"> | 141 <div id="container" style="position:absolute; top:0px; left:0px"> |
130 <canvas id="c" width="300" height="300" class="nomargin"></canvas> | 142 <canvas id="c" width="300" height="300" class="nomargin"></canvas> |
131 </div> | 143 </div> |
132 </body> | 144 </body> |
133 </html> | 145 </html> |
OLD | NEW |