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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.setup = function(gl) { | |
43 var tex = gl.createTexture(); | |
44 gl.bindTexture(gl.TEXTURE_2D, tex); | |
45 var texCubeMap = gl.createTexture(); | |
46 gl.bindTexture(gl.TEXTURE_CUBE_MAP, texCubeMap); | |
47 return [gl] | |
48 } | |
49 | |
50 Tests.teardown = function(gl,tex,texCubeMap) { | |
51 gl.bindTexture(gl.TEXTURE_2D, null); | |
52 gl.bindTexture(gl.TEXTURE_CUBE_MAP, null); | |
53 gl.deleteTexture(tex); | |
54 gl.deleteTexture(texCubeMap); | |
55 } | |
56 | |
57 | |
58 Tests.testTexImage2D = function(gl) { | |
59 gl.copyTexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 0,0,16,16,0); | |
60 gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0, 0,0,1,1); | |
61 gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0, 0,0,2,1); | |
62 gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0, 0,0,1,2); | |
63 gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0, 0,0,16,16); | |
64 gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0, 15,15,1,1); | |
65 gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 1,1, 0,0,15,15); | |
66 gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 15,15, 0,0,1,1); | |
67 var valid_targets = [ | |
68 gl.TEXTURE_2D, | |
69 gl.TEXTURE_CUBE_MAP_POSITIVE_X, | |
70 gl.TEXTURE_CUBE_MAP_NEGATIVE_X, | |
71 gl.TEXTURE_CUBE_MAP_POSITIVE_Y, | |
72 gl.TEXTURE_CUBE_MAP_NEGATIVE_Y, | |
73 gl.TEXTURE_CUBE_MAP_POSITIVE_Z, | |
74 gl.TEXTURE_CUBE_MAP_NEGATIVE_Z | |
75 ]; | |
76 valid_targets.forEach(function(t) { | |
77 assertOk(function(){ | |
78 gl.copyTexImage2D(t, 0, gl.RGBA, 0,0,1,1,0); | |
79 gl.copyTexSubImage2D(t, 0, 0,0,0,0,1,1); | |
80 }); | |
81 }); | |
82 } | |
83 Tests.testRoundtrip = function(gl) { | |
84 var sh = new Filter(gl, 'identity-flip-vert', 'identity-frag'); | |
85 gl.clearColor(1.0, 0.0, 0.0, 1.0); | |
86 gl.clear(gl.COLOR_BUFFER_BIT); | |
87 var buf = new Uint8Array(4); | |
88 gl.readPixels(0,0,1,1,gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
89 assertEquals([255,0,0,255], [buf[0], buf[1], buf[2], buf[3]]); | |
90 // red texture | |
91 gl.clearColor(0.0, 0.0, 0.0, 0.0); | |
92 gl.clear(gl.COLOR_BUFFER_BIT); | |
93 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, document
.getElementById('gl')); | |
94 gl.clearColor(1.0, 0.0, 0.0, 1.0); | |
95 gl.clear(gl.COLOR_BUFFER_BIT); | |
96 gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0,0,0,16,16); | |
97 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); | |
98 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); | |
99 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR); | |
100 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR); | |
101 gl.clearColor(0.0, 0.0, 1.0, 1.0); | |
102 gl.clear(gl.COLOR_BUFFER_BIT); | |
103 // blue framebuffer | |
104 gl.readPixels(0,0,1,1,gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
105 assertEquals([0,0,255,255], [buf[0], buf[1], buf[2], buf[3]]); | |
106 sh.apply(); // paint with texture | |
107 gl.readPixels(0,0,1,1,gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
108 assertEquals([255,0,0,255], [buf[0], buf[1], buf[2], buf[3]]); | |
109 sh.destroy(); | |
110 } | |
111 | |
112 Tests.endUnit = function(gl) { | |
113 } | |
114 | |
115 </script> | |
116 <script id="identity-flip-vert" type="x-shader/x-vertex"> | |
117 attribute vec3 Vertex; | |
118 attribute vec2 Tex; | |
119 | |
120 varying vec4 texCoord0; | |
121 void main() | |
122 { | |
123 texCoord0 = vec4(Tex.s, 1.0-Tex.t, 0.0, 0.0); | |
124 gl_Position = vec4(Vertex, 1.0); | |
125 } | |
126 </script> | |
127 <script id="identity-frag" type="x-shader/x-fragment"> | |
128 precision mediump float; | |
129 | |
130 uniform sampler2D Texture; | |
131 | |
132 varying vec4 texCoord0; | |
133 void main() | |
134 { | |
135 vec4 c = texture2D(Texture, texCoord0.st); | |
136 gl_FragColor = c; | |
137 } | |
138 </script> | |
139 <style>canvas{ position:absolute; }</style> | |
140 </head><body> | |
141 <canvas id="gl" width="16" height="16"></canvas> | |
142 </body></html> | |
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