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1 <!-- | |
2 Copyright (C) 2011 Apple Computer, Inc. All rights reserved. | |
3 | |
4 Redistribution and use in source and binary forms, with or without | |
5 modification, are permitted provided that the following conditions | |
6 are met: | |
7 1. Redistributions of source code must retain the above copyright | |
8 notice, this list of conditions and the following disclaimer. | |
9 2. Redistributions in binary form must reproduce the above copyright | |
10 notice, this list of conditions and the following disclaimer in the | |
11 documentation and/or other materials provided with the distribution. | |
12 | |
13 THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
14 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
15 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
16 PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
17 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
18 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
19 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
20 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
21 OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
22 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
23 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
24 --> | |
25 | |
26 <!DOCTYPE html> | |
27 <html> | |
28 <head> | |
29 <meta charset="utf-8"> | |
30 <title>Rendering Test</title> | |
31 <link rel="stylesheet" href="../../resources/js-test-style.css"/> | |
32 <script src="../../resources/js-test-pre.js"></script> | |
33 <script src="../resources/webgl-test.js"> </script> | |
34 <script src="../resources/webgl-test-utils.js"> </script> | |
35 </head> | |
36 <body> | |
37 <canvas id="example" width="50" height="50"> | |
38 There is supposed to be an example drawing here, but it's not important. | |
39 </canvas> | |
40 <div id="description"></div> | |
41 <div id="console"></div> | |
42 <script id="vshader" type="x-shader/x-vertex"> | |
43 attribute vec4 vPosition; | |
44 void main() | |
45 { | |
46 gl_Position = vPosition; | |
47 } | |
48 </script> | |
49 | |
50 <script id="fshader" type="x-shader/x-fragment"> | |
51 precision mediump float; | |
52 uniform vec4 color; | |
53 void main() | |
54 { | |
55 gl_FragColor = color; | |
56 } | |
57 </script> | |
58 | |
59 <script> | |
60 function fail(x,y, buf, shouldBe) | |
61 { | |
62 var i = (y*50+x) * 4; | |
63 var reason = "pixel at ("+x+","+y+") is ("+buf[i]+","+buf[i+1]+","+b
uf[i+2]+","+buf[i+3]+"), should be "+shouldBe; | |
64 testFailed(reason); | |
65 } | |
66 | |
67 function pass() | |
68 { | |
69 testPassed("drawing is correct"); | |
70 } | |
71 | |
72 function init() | |
73 { | |
74 if (window.initNonKhronosFramework) { | |
75 window.initNonKhronosFramework(false); | |
76 } | |
77 | |
78 wtu = WebGLTestUtils; | |
79 gl = initWebGL("example", "vshader", "fshader", [ "vPosition"], [ 0,
0, 0, 1 ], 1); | |
80 | |
81 var tests = [ | |
82 { data: new Float32Array([ 0, 1, 0, 1, 0, 0, 0, 0, 0 ]), | |
83 type: gl.FLOAT, | |
84 componentSize: 4, | |
85 normalize: false, | |
86 }, | |
87 { data: new Float32Array([ 0, 1, 0, 1, 0, 0, 0, 0, 0 ]), | |
88 type: gl.FLOAT, | |
89 componentSize: 4, | |
90 normalize: false, | |
91 }, | |
92 { data: new Uint16Array([ 0, 32767, 0, 32767, 0, 0, 0, 0, 0 ]), | |
93 type: gl.SHORT, | |
94 componentSize: 2, | |
95 normalize: true, | |
96 }, | |
97 { data: new Uint16Array([ 0, 65535, 0, 65535, 0, 0, 0, 0, 0 ]), | |
98 type: gl.UNSIGNED_SHORT, | |
99 componentSize: 2, | |
100 normalize: true, | |
101 }, | |
102 { data: new Uint16Array([ 0, 1, 0, 1, 0, 0, 0, 0, 0 ]), | |
103 type: gl.UNSIGNED_SHORT, | |
104 componentSize: 2, | |
105 normalize: false, | |
106 }, | |
107 { data: new Uint16Array([ 0, 1, 0, 1, 0, 0, 0, 0, 0 ]), | |
108 type: gl.SHORT, | |
109 componentSize: 2, | |
110 normalize: false, | |
111 }, | |
112 { data: new Uint8Array([ 0, 127, 0, 127, 0, 0, 0, 0, 0 ]), | |
113 type: gl.BYTE, | |
114 componentSize: 1, | |
115 normalize: true, | |
116 }, | |
117 { data: new Uint8Array([ 0, 255, 0, 255, 0, 0, 0, 0, 0 ]), | |
118 type: gl.UNSIGNED_BYTE, | |
119 componentSize: 1, | |
120 normalize: true, | |
121 }, | |
122 { data: new Uint8Array([ 0, 1, 0, 1, 0, 0, 0, 0, 0 ]), | |
123 type: gl.BYTE, | |
124 componentSize: 1, | |
125 normalize: false, | |
126 }, | |
127 { data: new Uint8Array([ 0, 1, 0, 1, 0, 0, 0, 0, 0 ]), | |
128 type: gl.UNSIGNED_BYTE, | |
129 componentSize: 1, | |
130 normalize: false, | |
131 } | |
132 ]; | |
133 | |
134 var vertexObject = gl.createBuffer(); | |
135 gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject); | |
136 gl.bufferData(gl.ARRAY_BUFFER, 1024, gl.STATIC_DRAW); | |
137 gl.enableVertexAttribArray(0); | |
138 | |
139 var colorLoc = gl.getUniformLocation(gl.program, "color"); | |
140 var kNumVerts = 3; | |
141 var kNumComponents = 3; | |
142 | |
143 var count = 0; | |
144 for (var tt = 0; tt < tests.length; ++tt) { | |
145 var test = tests[tt]; | |
146 for (var oo = 0; oo < 3; ++oo) { | |
147 for (var ss = 0; ss < 3; ++ss) { | |
148 var offset = (oo + 1) * test.componentSize; | |
149 var color = (count % 2) ? [1, 0, 0, 1] : [0, 1, 0, 1]; | |
150 var stride = test.componentSize * kNumComponents + test.compon
entSize * ss; | |
151 debug(""); | |
152 debug("check with " + wtu.glEnumToString(gl, test.type) + " at
offset: " + offset + " with stride:" + stride + " normalize: " + test.normalize
); | |
153 gl.uniform4fv(colorLoc, color); | |
154 var data = new Uint8Array(test.componentSize * kNumVerts * kNu
mComponents + stride * (kNumVerts - 1)); | |
155 var view = new Uint8Array(test.data.buffer); | |
156 var size = test.componentSize * kNumComponents; | |
157 for (var jj = 0; jj < kNumVerts; ++jj) { | |
158 var off1 = jj * size; | |
159 var off2 = jj * stride; | |
160 for (var zz = 0; zz < size; ++zz) { | |
161 data[off2 + zz] = view[off1 + zz]; | |
162 } | |
163 } | |
164 gl.bufferSubData(gl.ARRAY_BUFFER, offset, data); | |
165 gl.vertexAttribPointer(0, 3, test.type, test.normalize, stride
, offset); | |
166 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); | |
167 gl.drawArrays(gl.TRIANGLES, 0, 3); | |
168 | |
169 var buf = new Uint8Array(50 * 50 * 4); | |
170 gl.readPixels(0, 0, 50, 50, gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
171 | |
172 var black = [0, 0, 0, 255]; | |
173 var other = [color[0] * 255, color[1] * 255, color[2] * 255, c
olor[3] * 255]; | |
174 var otherMsg = "should be " + ((count % 2) ? "red" : "green") | |
175 wtu.checkCanvasRect(gl, 0, 0, 1, 1, black, "should be black",
0); | |
176 wtu.checkCanvasRect(gl, 0, 49, 1, 1, black, "should be black",
0); | |
177 wtu.checkCanvasRect(gl, 26, 40, 1, 1, other, otherMsg, 0); | |
178 wtu.checkCanvasRect(gl, 26, 27, 1, 1, other, otherMsg, 0); | |
179 wtu.checkCanvasRect(gl, 40, 27, 1, 1, other, otherMsg, 0); | |
180 ++count; | |
181 } | |
182 } | |
183 } | |
184 } | |
185 | |
186 init(); | |
187 successfullyParsed = true; | |
188 </script> | |
189 <script src="../../resources/js-test-post.js"></script> | |
190 | |
191 </body> | |
192 </html> | |
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