content/canvas/test/webgl-conformance/conformance/textures/texparameter-test.html@8bccb770b82d
content/canvas/test/webgl-conformance/conformance/textures/texparameter-test.html
Wed, 31 Dec 2014 13:27:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 13:27:57 +0100
- branch
- TOR_BUG_3246
- changeset 6
- 8bccb770b82d
- permissions
- -rw-r--r--
Ignore runtime configuration files generated during quality assurance.
1 <!--
2 Copyright (c) 2011 The Chromium Authors. All rights reserved.
3 Use of this source code is governed by a BSD-style license that can be
4 found in the LICENSE file.
5 -->
6 <!DOCTYPE html>
7 <html>
8 <head>
9 <meta charset="utf-8">
10 <title>WebGL TexParameter conformance test.</title>
11 <link rel="stylesheet" href="../../resources/js-test-style.css"/>
12 <script src="../../resources/js-test-pre.js"></script>
13 <script src="../resources/webgl-test.js"> </script>
14 </head>
15 <body>
16 <canvas id="example" width="24" height="24"></canvas>
17 <canvas id="canvas2d" width="2" height="2"></canvas>
18 <div id="description"></div>
19 <div id="console"></div>
20 <script id="vshader" type="x-shader/x-vertex">
21 uniform mat4 world;
22 attribute vec3 vPosition;
23 attribute vec2 texCoord0;
24 varying vec2 texCoord;
25 void main()
26 {
27 gl_Position = world * vec4(vPosition, 1);
28 texCoord = texCoord0;
29 }
30 </script>
32 <script id="fshader" type="x-shader/x-fragment">
33 precision mediump float;
35 uniform sampler2D tex;
36 varying vec2 texCoord;
37 void main()
38 {
39 gl_FragColor = texture2D(tex, texCoord);
40 }
41 </script>
43 <script>
44 function init()
45 {
46 if (window.initNonKhronosFramework) {
47 window.initNonKhronosFramework(false);
48 }
50 description("Tests TexParameter works as expected");
51 debug("");
53 var canvas2d = document.getElementById("canvas2d");
54 var ctx2d = canvas2d.getContext("2d");
56 gl = initWebGL("example", "vshader", "fshader", [ "vPosition", "texCoord0"],
57 [ 0, 0, 0, 1 ], 1);
59 gl.disable(gl.DEPTH_TEST);
60 gl.disable(gl.BLEND);
62 var vertexObject = gl.createBuffer();
63 gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject);
64 gl.bufferData(
65 gl.ARRAY_BUFFER,
66 new Float32Array([-1, 1,0, 1,1,0, -1,-1,0,
67 -1,-1,0, 1,1,0, 1,-1,0]),
68 gl.STATIC_DRAW);
69 gl.enableVertexAttribArray(0);
70 gl.vertexAttribPointer(0, 3, gl.FLOAT, false, 0, 0);
72 var vertexObject = gl.createBuffer();
73 gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject);
74 gl.bufferData(
75 gl.ARRAY_BUFFER,
76 new Float32Array([ -2.5,-2.5, 3.5,-2.5, -2.5,3.5,
77 -2.5,3.5, 3.5,-2.5, 3.5,3.5]),
78 gl.STATIC_DRAW);
79 gl.enableVertexAttribArray(1);
80 gl.vertexAttribPointer(1, 2, gl.FLOAT, false, 0, 0);
82 var colors = [
83 [0,255,128,255],
84 [128,64,255,255],
85 [192,255,64,255],
86 [200,0,255,255]];
87 var texParam = [
88 gl.REPEAT,
89 gl.CLAMP_TO_EDGE,
90 gl.MIRRORED_REPEAT,
91 gl.REPEAT];
93 // Make textures setting the texture parameters differently each time..
94 // This verifies both that the render correct AND that texture parameters
95 // are associated with the textures, not with the texture-units.
96 var textures = [];
97 for (var ii = 0; ii < colors.length; ++ii) {
98 var c = colors[ii];
99 ctx2d.fillStyle =
100 "rgba(" + c[0] + "," + c[1] + "," + c[2] + "," + c[3] + ")";
101 ctx2d.fillRect(0, 0, 1, 1);
102 var tex = gl.createTexture();
103 gl.bindTexture(gl.TEXTURE_2D, tex);
104 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, canvas2d);
105 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
106 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
107 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, texParam[ii]);
108 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, texParam[ii]);
109 textures[ii] = tex;
110 }
112 var textureLoc = gl.getUniformLocation(gl.program, "tex");
113 var worldLoc = gl.getUniformLocation(gl.program, "world");
115 gl.clearColor(1,1,1,1);
116 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
118 for (var ii = 0; ii < colors.length; ++ii) {
119 var x = ii % 2;
120 var y = Math.floor(ii / 2);
121 gl.bindTexture(gl.TEXTURE_2D, textures[ii]);
122 gl.uniformMatrix4fv(
123 worldLoc, false,
124 [0.5, 0, 0, 0,
125 0, 0.5, 0, 0,
126 0, 0, 1, 0,
127 -0.5 + x, -0.5 + y, 0, 1]);
128 gl.drawArrays(gl.TRIANGLES, 0, 6);
129 }
131 var buf = new Uint8Array(24 * 24 * 4);
132 gl.readPixels(0, 0, 24, 24, gl.RGBA, gl.UNSIGNED_BYTE, buf);
133 var passed = true;
134 for (var ii = 0; ii < colors.length; ++ii) {
135 var x = ii % 2;
136 var y = Math.floor(ii / 2);
137 var c = colors[ii];
138 for (var yy = 0; yy < 12; ++yy) {
139 for (var xx = 0; xx < 12; ++xx) {
140 var ec = [0,0,0,0];
141 switch (texParam[ii]) {
142 case gl.REPEAT:
143 if (xx % 2 == 1 && yy % 2 == 0) {
144 ec = c;
145 }
146 break;
147 case gl.CLAMP_TO_EDGE:
148 if (xx < 6 && yy >= 6) {
149 ec = c;
150 }
151 break;
152 case gl.MIRRORED_REPEAT:
153 if (xx % 4 < 2 && yy % 4 >= 2) {
154 ec = c;
155 }
156 break;
157 }
158 var off = ((y * 12 + yy) * 24 + x * 12 + xx) * 4;
159 if (buf[off + 0] != ec[0] ||
160 buf[off + 1] != ec[1] ||
161 buf[off + 2] != ec[2] ||
162 buf[off + 3] != ec[3]) {
163 var msg = 'at (' + (x * 12 + xx) + ', ' + (y * 12 + yy) +
164 ') expected: ' +
165 ec[0] + ', ' + ec[1] + ', ' + ec[2] + ', ' + ec[3] + ' found: ' +
166 buf[off + 0] + ', ' +
167 buf[off + 1] + ', ' +
168 buf[off + 2] + ', ' +
169 buf[off + 3];
170 testFailed(msg);
171 passed = false;
172 }
173 }
174 }
175 }
176 if (passed) {
177 testPassed("rendered as expected");
178 }
179 }
181 init();
182 successfullyParsed = true;
183 </script>
184 <script>finishTest();</script>
186 </body>
187 </html>
