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Side by Side Diff: third_party/WebKit/LayoutTests/fast/canvas/webgl/offscreenCanvas-APIs-NOT-alter-webgl-states.html

Issue 2455983005: Refactor AcceleratedStaticBitmapImage (Closed)
Patch Set: rebase Created 4 years, 1 month ago
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1 <!DOCTYPE html>
2 <html>
3 <script src="../../../resources/testharness.js"></script>
4 <script src="../../../resources/testharnessreport.js"></script>
5 <script>
6 function enableStates(gl)
7 {
8 gl.enable(gl.CULL_FACE);
9 gl.enable(gl.BLEND);
10 gl.enable(gl.DITHER);
11 gl.enable(gl.STENCIL_TEST);
12 gl.enable(gl.DEPTH_TEST);
13 gl.enable(gl.SCISSOR_TEST);
14 }
15
16 function testStates(gl)
17 {
18 assert_true(gl.isEnabled(gl.CULL_FACE), 'CULL_FACE should be enabled');
19 assert_true(gl.isEnabled(gl.BLEND), 'BLEND should be enabled');
20 assert_true(gl.isEnabled(gl.DITHER), 'DITHER should be enabled');
21 assert_true(gl.isEnabled(gl.STENCIL_TEST), 'STENCIL_TEST should be enabled') ;
22 assert_true(gl.isEnabled(gl.DEPTH_TEST), 'DEPTH_TEST should be enabled');
23 assert_true(gl.isEnabled(gl.SCISSOR_TEST), 'SCISSOR_TEST should be enabled') ;
24 }
25
26 test(function() {
27 var canvas = new OffscreenCanvas(100, 100);
28 var gl = canvas.getContext('webgl');
29 enableStates(gl);
30
31 gl.clearColor(0.0, 1.0, 0.0, 1.0);
32 gl.clear(gl.COLOR_BUFFER_BIT);
33 testStates(gl);
34
35 var image = canvas.transferToImageBitmap();
36 testStates(gl);
37 }, 'offscreenCanvas.transferToImageBitmap should not alter WebGL states');
38
39 test(function() {
40 var canvas = document.createElement('canvas');
41 canvas.width = canvas.height = 100;
42 var offscreenCanvas = canvas.transferControlToOffscreen();
43 var gl = offscreenCanvas.getContext('webgl');
44 enableStates(gl);
45
46 gl.clearColor(0.0, 1.0, 0.0, 1.0);
47 gl.clear(gl.COLOR_BUFFER_BIT);
48 testStates(gl);
49
50 gl.commit();
51 testStates(gl);
52 }, 'offscreenCanvas.commit should not alter WebGL states');
53 </script>
54 </html>
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