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| 1 <!-- | |
| 2 Copyright (c) 2010 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 <html> | |
| 7 <head> | |
| 8 <link rel="stylesheet" href="../resources/js-test-style.css"/> | |
| 9 <script src="../resources/js-test-pre.js"></script> | |
| 10 <script src="resources/webgl-test.js"></script> | |
| 11 <script id="vshader" type="x-shader/x-vertex"> | |
| 12 attribute vec3 pos; | |
| 13 attribute vec4 colorIn; | |
| 14 varying vec4 color; | |
| 15 | |
| 16 void main() | |
| 17 { | |
| 18 color = colorIn; | |
| 19 gl_Position = vec4(pos.xyz, 1.0); | |
| 20 } | |
| 21 </script> | |
| 22 | |
| 23 <script id="fshader" type="x-shader/x-fragment"> | |
| 24 #ifdef GL_ES | |
| 25 precision highp float; | |
| 26 #endif | |
| 27 varying vec4 color; | |
| 28 | |
| 29 void main() | |
| 30 { | |
| 31 gl_FragColor = color; | |
| 32 } | |
| 33 </script> | |
| 34 | |
| 35 <script> | |
| 36 var successfullyParsed = false; | |
| 37 | |
| 38 // These four declarations need to be global for "shouldBe" to see them | |
| 39 var webGL = null; | |
| 40 var contextAttribs = null; | |
| 41 var pixel = [0, 0, 0, 1]; | |
| 42 var correctColor = null; | |
| 43 | |
| 44 function init() | |
| 45 { | |
| 46 if (window.initNonKhronosFramework) { | |
| 47 window.initNonKhronosFramework(true); | |
| 48 } | |
| 49 | |
| 50 description('Verify WebGLContextAttributes are working as specified, includi
ng alpha, depth, stencil, antialias, but not premultipliedAlpha'); | |
| 51 | |
| 52 runTest(); | |
| 53 } | |
| 54 | |
| 55 function getWebGL(canvasName, contextAttribs, clearColor, clearDepth, clearStenc
il) | |
| 56 { | |
| 57 var context = initWebGL(canvasName, "vshader", "fshader", ["pos", "colorIn"]
, clearColor, clearDepth, contextAttribs); | |
| 58 if (context) { | |
| 59 context.clearStencil(clearStencil); | |
| 60 context.enable(context.STENCIL_TEST); | |
| 61 context.disable(context.BLEND); | |
| 62 context.clear(context.COLOR_BUFFER_BIT | context.DEPTH_BUFFER_BIT | cont
ext.STENCIL_BUFFER_BIT); | |
| 63 } | |
| 64 return context; | |
| 65 } | |
| 66 | |
| 67 function drawAndReadPixel(gl, vertices, colors, x, y) | |
| 68 { | |
| 69 var colorOffset = vertices.byteLength; | |
| 70 | |
| 71 var vbo = gl.createBuffer(); | |
| 72 gl.bindBuffer(gl.ARRAY_BUFFER, vbo); | |
| 73 gl.bufferData(gl.ARRAY_BUFFER, colorOffset + colors.byteLength, gl.STATIC_DR
AW); | |
| 74 gl.bufferSubData(gl.ARRAY_BUFFER, 0, vertices); | |
| 75 gl.bufferSubData(gl.ARRAY_BUFFER, colorOffset, colors); | |
| 76 | |
| 77 gl.vertexAttribPointer(0, 3, gl.FLOAT, false, 0, 0); | |
| 78 gl.enableVertexAttribArray(0); | |
| 79 gl.vertexAttribPointer(1, 4, gl.UNSIGNED_BYTE, true, 0, colorOffset); | |
| 80 gl.enableVertexAttribArray(1); | |
| 81 | |
| 82 gl.drawArrays(gl.TRIANGLES, 0, vertices.length / 3); | |
| 83 | |
| 84 var buf = new Uint8Array(1 * 1 * 4); | |
| 85 gl.readPixels(x, y, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, buf); | |
| 86 return buf; | |
| 87 } | |
| 88 | |
| 89 function testAlpha(alpha) | |
| 90 { | |
| 91 debug("Testing alpha = " + alpha); | |
| 92 if (alpha) | |
| 93 shouldBeNonNull("webGL = getWebGL('alphaOn', { alpha: true, depth: false
, stencil: false, antialias: false }, [ 0, 0, 0, 0 ], 1, 0)"); | |
| 94 else | |
| 95 shouldBeNonNull("webGL = getWebGL('alphaOff', { alpha: false, depth: fal
se, stencil: false, antialias: false }, [ 0, 0, 0, 0 ], 1, 0)"); | |
| 96 shouldBeNonNull("contextAttribs = webGL.getContextAttributes()"); | |
| 97 | |
| 98 var buf = new Uint8Array(1 * 1 * 4); | |
| 99 webGL.readPixels(0, 0, 1, 1, webGL.RGBA, webGL.UNSIGNED_BYTE, buf); | |
| 100 pixel[0] = buf[0]; | |
| 101 pixel[1] = buf[1]; | |
| 102 pixel[2] = buf[2]; | |
| 103 pixel[3] = buf[3]; | |
| 104 correctColor = (contextAttribs.alpha ? [0, 0, 0, 0] : [0, 0, 0, 255]); | |
| 105 shouldBe("pixel", "correctColor"); | |
| 106 } | |
| 107 | |
| 108 function testDepth(depth) | |
| 109 { | |
| 110 debug("Testing depth = " + depth); | |
| 111 if (depth) | |
| 112 shouldBeNonNull("webGL = getWebGL('depthOn', { stencil: false, antialias
: false }, [ 0, 0, 0, 1 ], 1, 0)"); | |
| 113 else | |
| 114 shouldBeNonNull("webGL = getWebGL('depthOff', { depth: false, stencil: f
alse, antialias: false }, [ 0, 0, 0, 1 ], 1, 0)"); | |
| 115 shouldBeNonNull("contextAttribs = webGL.getContextAttributes()"); | |
| 116 | |
| 117 webGL.depthFunc(webGL.NEVER); | |
| 118 | |
| 119 var vertices = new Float32Array([ | |
| 120 1.0, 1.0, 0.0, | |
| 121 -1.0, 1.0, 0.0, | |
| 122 -1.0, -1.0, 0.0, | |
| 123 1.0, 1.0, 0.0, | |
| 124 -1.0, -1.0, 0.0, | |
| 125 1.0, -1.0, 0.0]); | |
| 126 var colors = new Uint8Array([ | |
| 127 255, 0, 0, 255, | |
| 128 255, 0, 0, 255, | |
| 129 255, 0, 0, 255, | |
| 130 255, 0, 0, 255, | |
| 131 255, 0, 0, 255, | |
| 132 255, 0, 0, 255]); | |
| 133 | |
| 134 var buf = drawAndReadPixel(webGL, vertices, colors, 0, 0); | |
| 135 pixel[0] = buf[0]; | |
| 136 pixel[1] = buf[1]; | |
| 137 pixel[2] = buf[2]; | |
| 138 pixel[3] = buf[3]; | |
| 139 correctColor = (contextAttribs.depth ? [0, 0, 0, 255] : [255, 0, 0, 255]); | |
| 140 shouldBe("pixel", "correctColor"); | |
| 141 } | |
| 142 | |
| 143 function testStencil(stencil) | |
| 144 { | |
| 145 debug("Testing stencil = " + stencil); | |
| 146 if (stencil) | |
| 147 shouldBeNonNull("webGL = getWebGL('stencilOn', { depth: false, stencil:
true, antialias: false }, [ 0, 0, 0, 1 ], 1, 0)"); | |
| 148 else | |
| 149 shouldBeNonNull("webGL = getWebGL('stencilOff', { depth: false, stencil:
false, antialias: false }, [ 0, 0, 0, 1 ], 1, 0)"); | |
| 150 shouldBeNonNull("contextAttribs = webGL.getContextAttributes()"); | |
| 151 | |
| 152 webGL.depthFunc(webGL.ALWAYS); | |
| 153 | |
| 154 webGL.stencilFunc(webGL.NEVER, 1, 1); | |
| 155 webGL.stencilOp(webGL.KEEP, webGL.KEEP, webGL.KEEP); | |
| 156 | |
| 157 var vertices = new Float32Array([ | |
| 158 1.0, 1.0, 0.0, | |
| 159 -1.0, 1.0, 0.0, | |
| 160 -1.0, -1.0, 0.0, | |
| 161 1.0, 1.0, 0.0, | |
| 162 -1.0, -1.0, 0.0, | |
| 163 1.0, -1.0, 0.0]); | |
| 164 var colors = new Uint8Array([ | |
| 165 255, 0, 0, 255, | |
| 166 255, 0, 0, 255, | |
| 167 255, 0, 0, 255, | |
| 168 255, 0, 0, 255, | |
| 169 255, 0, 0, 255, | |
| 170 255, 0, 0, 255]); | |
| 171 | |
| 172 var buf = drawAndReadPixel(webGL, vertices, colors, 0, 0); | |
| 173 pixel[0] = buf[0]; | |
| 174 pixel[1] = buf[1]; | |
| 175 pixel[2] = buf[2]; | |
| 176 pixel[3] = buf[3]; | |
| 177 correctColor = (contextAttribs.stencil ? [0, 0, 0, 255] : [255, 0, 0, 255]); | |
| 178 shouldBe("pixel", "correctColor"); | |
| 179 } | |
| 180 | |
| 181 function testAntialias(antialias) | |
| 182 { | |
| 183 debug("Testing antialias = " + antialias); | |
| 184 if (antialias) | |
| 185 shouldBeNonNull("webGL = getWebGL('antialiasOn', { depth: false, stencil
: false, alpha: false, antialias: true }, [ 0, 0, 0, 1 ], 1, 0)"); | |
| 186 else | |
| 187 shouldBeNonNull("webGL = getWebGL('antialiasOff', { depth: false, stenci
l: false, alpha: false, antialias: false }, [ 0, 0, 0, 1 ], 1, 0)"); | |
| 188 shouldBeNonNull("contextAttribs = webGL.getContextAttributes()"); | |
| 189 | |
| 190 var vertices = new Float32Array([ | |
| 191 1.0, 1.0, 0.0, | |
| 192 -1.0, 1.0, 0.0, | |
| 193 -1.0, -1.0, 0.0]); | |
| 194 var colors = new Uint8Array([ | |
| 195 255, 0, 0, 255, | |
| 196 255, 0, 0, 255, | |
| 197 255, 0, 0, 255]); | |
| 198 var buf = drawAndReadPixel(webGL, vertices, colors, 0, 0); | |
| 199 pixel[0] = buf[0]; | |
| 200 shouldBe("pixel[0] != 255 && pixel[0] != 0", "contextAttribs.antialias"); | |
| 201 } | |
| 202 | |
| 203 function runTest() | |
| 204 { | |
| 205 | |
| 206 testAlpha(true); | |
| 207 testAlpha(false); | |
| 208 testDepth(true); | |
| 209 testDepth(false); | |
| 210 testStencil(true); | |
| 211 testStencil(false); | |
| 212 testAntialias(true); | |
| 213 testAntialias(false); | |
| 214 | |
| 215 finishTest() | |
| 216 } | |
| 217 | |
| 218 </script> | |
| 219 </head> | |
| 220 <body onload="init()"> | |
| 221 <canvas id="alphaOn" width="1px" height="1px"></canvas> | |
| 222 <canvas id="alphaOff" width="1px" height="1px"></canvas> | |
| 223 <canvas id="depthOn" width="1px" height="1px"></canvas> | |
| 224 <canvas id="depthOff" width="1px" height="1px"></canvas> | |
| 225 <canvas id="stencilOn" width="1px" height="1px"></canvas> | |
| 226 <canvas id="stencilOff" width="1px" height="1px"></canvas> | |
| 227 <canvas id="antialiasOn" width="2px" height="2px"></canvas> | |
| 228 <canvas id="antialiasOff" width="2px" height="2px"></canvas> | |
| 229 <div id="description"></div> | |
| 230 <div id="console"></div> | |
| 231 </body> | |
| 232 </html> | |
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Chromium Code Reviews
Issue 9360034:
Remove everthing except conformance tests in the deps/third_party/webgl (Closed)
Base URL: svn://chrome-svn/chrome/trunk/deps/