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1 <!DOCTYPE html> | |
2 <html><head> | |
3 <meta charset="utf-8"> | |
4 <!-- | |
5 Tests for the OpenGL ES 2.0 HTML Canvas context | |
6 | |
7 Copyright (C) 2011 Ilmari Heikkinen <ilmari.heikkinen@gmail.com> | |
8 | |
9 Permission is hereby granted, free of charge, to any person | |
10 obtaining a copy of this software and associated documentation | |
11 files (the "Software"), to deal in the Software without | |
12 restriction, including without limitation the rights to use, | |
13 copy, modify, merge, publish, distribute, sublicense, and/or sell | |
14 copies of the Software, and to permit persons to whom the | |
15 Software is furnished to do so, subject to the following | |
16 conditions: | |
17 | |
18 The above copyright notice and this permission notice shall be | |
19 included in all copies or substantial portions of the Software. | |
20 | |
21 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
22 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES | |
23 OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
24 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT | |
25 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | |
26 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
27 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
28 OTHER DEALINGS IN THE SOFTWARE. | |
29 | |
30 --> | |
31 <link rel="stylesheet" type="text/css" href="../unit.css" /> | |
32 <script type="application/x-javascript" src="../unit.js"></script> | |
33 <script type="application/x-javascript" src="../util.js"></script> | |
34 <script type="application/x-javascript"> | |
35 | |
36 Tests.startUnit = function () { | |
37 var canvas = document.getElementById('gl'); | |
38 var gl = wrapGLContext(canvas.getContext(GL_CONTEXT_ID)); | |
39 return [gl]; | |
40 } | |
41 | |
42 Tests.testReadPixels = function(gl) { | |
43 // we can't know if this is going to fail because of negative width | |
44 // or because the buffer size doesn't match the dimensions. | |
45 assertSomeGLError(gl, "negative width", | |
46 function(){gl.readPixels(0,0,-1,1, gl.RGBA, gl.UNSIGNED_BYTE, | |
47 new Uint8Array(4));}); | |
48 assertSomeGLError(gl, "negative height", | |
49 function(){gl.readPixels(0,0,1,-1, gl.RGBA, gl.UNSIGNED_BYTE, | |
50 new Uint8Array(4));}); | |
51 assertOk("negative x", | |
52 function(){gl.readPixels(-1,0,1,1, gl.RGBA, gl.UNSIGNED_BYTE, | |
53 new Uint8Array(4));}); | |
54 assertOk("negative y", | |
55 function(){gl.readPixels(0,-1,1,1, gl.RGBA, gl.UNSIGNED_BYTE, | |
56 new Uint8Array(4));}); | |
57 assertOk("height > backbuffer height", | |
58 function(){gl.readPixels(0,0,16,17, gl.RGBA, gl.UNSIGNED_BYTE, | |
59 new Uint8Array(16*17*4));}); | |
60 assertOk("width > backbuffer width", | |
61 function(){gl.readPixels(0,0,17,16, gl.RGBA, gl.UNSIGNED_BYTE, | |
62 new Uint8Array(17*16*4));}); | |
63 assertOk("width, height = 0", | |
64 function(){gl.readPixels(0,0,0,0, gl.RGBA, gl.UNSIGNED_BYTE, | |
65 new Uint8Array(0));}); | |
66 // we can't know if this is going to fail because of negative width | |
67 // or because the buffer size doesn't match the dimensions. | |
68 assertSomeGLError(gl, "bad format", | |
69 function(){gl.readPixels(0,0,1,1, gl.FLOAT, gl.UNSIGNED_BYTE, | |
70 new Uint8Array(4*4));}); | |
71 // we can't know if this is going to fail because of negative width | |
72 // or because the buffer size doesn't match the dimensions. | |
73 assertSomeGLError(gl, "bad type", | |
74 function(){gl.readPixels(0,0,1,1, gl.ALPHA, gl.FLOAT, | |
75 new Uint8Array(1*4));}); | |
76 } | |
77 | |
78 Tests.testReadPixelsSOPIMG = function(gl) { | |
79 var img = document.getElementById("i"); | |
80 while (!img.complete) {} | |
81 var tex = gl.createTexture(); | |
82 gl.bindTexture(gl.TEXTURE_2D, tex); | |
83 // SOP failure | |
84 assertThrowNoGLError(gl, "throw because img is from another domain", | |
85 function(){gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_B
YTE, img);}); | |
86 gl.bindTexture(gl.TEXTURE_2D, null); | |
87 assertOk("canvas still origin-clean", | |
88 function(){gl.readPixels(0,0,1,1, gl.RGBA, gl.UNSIGNED_BYTE, | |
89 new Uint8Array(4));}); | |
90 gl.deleteTexture(tex); | |
91 } | |
92 Tests.testReadPixelsSOPCanvas = function(gl) { | |
93 var img = document.getElementById("i"); | |
94 while (!img.complete) {} | |
95 var c = document.getElementById("c"); | |
96 c.getContext("2d").drawImage(img, 0, 0); | |
97 assertFail("canvas throws because not origin clean", | |
98 function(){c.getContext("2d").getImageData(0,0,1,1);}); | |
99 var tex = gl.createTexture(); | |
100 gl.bindTexture(gl.TEXTURE_2D, tex); | |
101 // SOP failure | |
102 assertThrowNoGLError(gl, "throw because canvas is not origin clean", | |
103 function(){gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_B
YTE, c);}); | |
104 gl.bindTexture(gl.TEXTURE_2D, null); | |
105 assertOk("canvas still origin-clean", | |
106 function(){gl.readPixels(0,0,1,1, gl.RGBA, gl.UNSIGNED_BYTE, | |
107 new Uint8Array(4));}); | |
108 gl.deleteTexture(tex); | |
109 } | |
110 | |
111 Tests.endUnit = function(gl) { | |
112 } | |
113 | |
114 </script> | |
115 </head><body> | |
116 <canvas id="gl" width="16" height="16"></canvas> | |
117 <canvas id="c" width="128" height="128"></canvas> | |
118 <img id="i" src="http://www.opengl.org/img/opengl_logo.jpg"> | |
119 </body></html> | |
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