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comparison: content/canvas/test/webgl-conformance/conformance/textures/texture-mips.html
content/canvas/test/webgl-conformance/conformance/textures/texture-mips.html
- branch
- TOR_BUG_3246
- changeset 6
- 8bccb770b82d
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| -1:000000000000 | 0:e7ace62ee18a |
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| 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 texture mips 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 <script src="../resources/webgl-test-utils.js"></script> | |
| 15 </head> | |
| 16 <body> | |
| 17 <canvas id="example" width="2" height="2" style="width: 40px; height: 40px;"></canvas> | |
| 18 <div id="description"></div> | |
| 19 <div id="console"></div> | |
| 20 <script id="vshader" type="x-shader/x-vertex"> | |
| 21 uniform vec4 uMult; | |
| 22 attribute vec4 vPosition; | |
| 23 attribute vec2 texCoord0; | |
| 24 varying vec2 texCoord; | |
| 25 void main() | |
| 26 { | |
| 27 gl_Position = vPosition * uMult; | |
| 28 texCoord = texCoord0; | |
| 29 } | |
| 30 </script> | |
| 31 | |
| 32 <script id="fshader" type="x-shader/x-fragment"> | |
| 33 precision mediump float; | |
| 34 uniform sampler2D tex; | |
| 35 varying vec2 texCoord; | |
| 36 void main() | |
| 37 { | |
| 38 gl_FragColor = texture2D(tex, texCoord); | |
| 39 } | |
| 40 </script> | |
| 41 <script> | |
| 42 var canvas; | |
| 43 var wtu = WebGLTestUtils; | |
| 44 function init() | |
| 45 { | |
| 46 if (window.initNonKhronosFramework) { | |
| 47 window.initNonKhronosFramework(false); | |
| 48 } | |
| 49 | |
| 50 description("Checks mip issues"); | |
| 51 | |
| 52 canvas = document.getElementById("example"); | |
| 53 shouldBe("canvas.width", "2"); | |
| 54 shouldBe("canvas.height", "2"); | |
| 55 | |
| 56 gl = wtu.create3DContext(canvas); | |
| 57 wtu.setupUnitQuad(gl, 0, 1); | |
| 58 var program = wtu.setupProgram( | |
| 59 gl, ['vshader', 'fshader'], ['vPosition', 'texCoord0'], [0, 1]); | |
| 60 | |
| 61 gl.disable(gl.DEPTH_TEST); | |
| 62 gl.disable(gl.BLEND); | |
| 63 | |
| 64 var colors = { | |
| 65 blue: [0, 0, 255, 255], | |
| 66 red: [255, 0, 0, 255], | |
| 67 green: [0, 255, 0, 255], | |
| 68 cyan: [128, 255, 255, 255], | |
| 69 black: [0, 0, 0, 255] | |
| 70 }; | |
| 71 | |
| 72 var mips = [ | |
| 73 ]; | |
| 74 | |
| 75 var texLoc = gl.getUniformLocation(program, "tex"); | |
| 76 gl.uniform1i(texLoc, 0); | |
| 77 var multLoc = gl.getUniformLocation(program, "uMult"); | |
| 78 | |
| 79 // ---------------------------------------------------- | |
| 80 var tex = createTexture(); | |
| 81 gl.uniform4f(multLoc, 1, 1, 1, 1); | |
| 82 | |
| 83 gl.bindTexture(gl.TEXTURE_2D, tex); | |
| 84 // 16x16 texture no mips | |
| 85 fillLevel(tex, 0, 16, 'cyan'); | |
| 86 | |
| 87 check('black', | |
| 88 "texture that is missing mips when TEXTURE_MIN_FILTER not NEAREST or LINEAR"); | |
| 89 | |
| 90 generateMipmap(); | |
| 91 | |
| 92 check('cyan', "texture that has all mips"); | |
| 93 | |
| 94 // Fill in the bottom 2 mips with a different color. | |
| 95 fillLevel(tex, 4, 1, 'green'); | |
| 96 fillLevel(tex, 3, 2, 'green'); | |
| 97 | |
| 98 // Choose the nearest mip | |
| 99 texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_NEAREST); | |
| 100 | |
| 101 check('green', "texture that is only using the smallest 2 mips"); | |
| 102 | |
| 103 gl.uniform4f(multLoc, 16, 16, 1, 1); | |
| 104 | |
| 105 check('cyan', "texture that is using only the largest 2 mips"); | |
| 106 | |
| 107 // Set the top level | |
| 108 fillLevel(tex, 0, 1, 'red'); | |
| 109 check('red', | |
| 110 "texture that is only using the top level even though other levels are defined"); | |
| 111 | |
| 112 // Set the top 2 levels using generateMipmap | |
| 113 fillLevel(tex, 0, 2, 'blue'); | |
| 114 generateMipmap(); | |
| 115 | |
| 116 check('blue', | |
| 117 "texture that is only using the top 2 levels even though other levels are defined"); | |
| 118 | |
| 119 // Set the top 2 levels back to sizes that end up using levels 2, 3, and 4 again. | |
| 120 fillLevel(tex, 0, 16, 'blue'); | |
| 121 fillLevel(tex, 1, 8, 'blue'); | |
| 122 check('blue', "texture that is only using the largest 2 mips"); | |
| 123 gl.uniform4f(multLoc, 1, 1, 1, 1); | |
| 124 check('green', "texture that is only using the smallest 2 mips"); | |
| 125 | |
| 126 // ---------------------------------------------------- | |
| 127 var tex = createTexture(); | |
| 128 gl.uniform4f(multLoc, 1, 1, 1, 1); | |
| 129 fillLevel(tex, 0, 8, 'cyan'); | |
| 130 generateMipmap(); | |
| 131 check('cyan', "texture that has 3 mips"); | |
| 132 | |
| 133 fillLevel(tex, 0, 16, 'blue'); | |
| 134 texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR); | |
| 135 check('blue', "texture that is only using top mips"); | |
| 136 | |
| 137 fillLevel(tex, 0, 8, 'red'); | |
| 138 texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_NEAREST); | |
| 139 check('cyan', "texture that is only using smallest mips"); | |
| 140 | |
| 141 gl.uniform4f(multLoc, 16, 16, 1, 1); | |
| 142 check('red', "texture that is using only the largest mip"); | |
| 143 | |
| 144 // ---------------------------------------------------- | |
| 145 var tex = createTexture(); | |
| 146 gl.uniform4f(multLoc, 1, 1, 1, 1); | |
| 147 fillLevel(tex, 2, 1, 'green'); | |
| 148 fillLevel(tex, 1, 2, 'green'); | |
| 149 fillLevel(tex, 0, 4, 'green'); | |
| 150 check('green', "texture that was built smallest mip first"); | |
| 151 | |
| 152 // ---------------------------------------------------- | |
| 153 var tex = createTexture(); | |
| 154 gl.uniform4f(multLoc, 1, 1, 1, 1); | |
| 155 fillLevel(tex, 0, 16, 'red'); | |
| 156 generateMipmap(); | |
| 157 check('red', "texture with 1 genmipmaps"); | |
| 158 fillLevel(tex, 0, 16, 'blue'); | |
| 159 generateMipmap(); | |
| 160 fillLevel(tex, 0, 16, 'green'); | |
| 161 generateMipmap(); | |
| 162 check('green', "texture with 2 genmipmaps"); | |
| 163 | |
| 164 // ---------------------------------------------------- | |
| 165 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors."); | |
| 166 | |
| 167 function createTexture() { | |
| 168 debug("<hr/>gl.createTexture()"); | |
| 169 mips = []; | |
| 170 makeDivMipChain(); | |
| 171 return gl.createTexture(); | |
| 172 } | |
| 173 | |
| 174 function texParameteri(target, pname, value) { | |
| 175 debug("gl.texParameteri(" + | |
| 176 wtu.glEnumToString(gl, target) + ", " + | |
| 177 wtu.glEnumToString(gl, pname) + ", " + | |
| 178 wtu.glEnumToString(gl, value) + ")") | |
| 179 gl.texParameteri(target, pname, value); | |
| 180 } | |
| 181 | |
| 182 function generateMipmap() { | |
| 183 debug("gl.genreateMipmap(gl.TEXTURE_2D)"); | |
| 184 gl.generateMipmap(gl.TEXTURE_2D); | |
| 185 var mip0 = mips[0]; | |
| 186 var size = mip0.size; | |
| 187 var level = 1; | |
| 188 for(;;) { | |
| 189 size = Math.floor(size / 2); | |
| 190 if (!size) { | |
| 191 break; | |
| 192 } | |
| 193 setMipData(level, size, mip0.color); | |
| 194 ++level; | |
| 195 } | |
| 196 makeDivMipChain(); | |
| 197 } | |
| 198 | |
| 199 function check(color, msg) { | |
| 200 wtu.drawQuad(gl); | |
| 201 wtu.checkCanvas(gl, colors[color], msg + " should draw with " + color); | |
| 202 } | |
| 203 | |
| 204 function fillLevel(tex, level, size, color) { | |
| 205 setMipData(level, size, color); | |
| 206 debug("gl.texImage2D(gl.TEXTURE_2D, " + level + ", gl.RGBA, " + size + ", " + size + | |
| 207 ", 0, gl.RGBA, gl.UNSIGNED_BYTE, " + color + ");"); | |
| 208 wtu.fillTexture(gl, tex, size, size, colors[color], level); | |
| 209 makeDivMipChain(); | |
| 210 } | |
| 211 | |
| 212 function setMipData(level, size, color) { | |
| 213 mips[level] = { | |
| 214 size: size, | |
| 215 color: color | |
| 216 }; | |
| 217 } | |
| 218 | |
| 219 function makeDivMipChain(color) { | |
| 220 var html = [ | |
| 221 '<div style="height: 68px; margin-top: 5px">', | |
| 222 '<div style="float:left;">mips: </div>']; | |
| 223 for (var ii = 0; ii < 5; ++ii) { | |
| 224 var mip = mips[ii]; | |
| 225 if (mip) { | |
| 226 html.push(makeDivSquare(mip.size, mip.color)); | |
| 227 } else { | |
| 228 html.push(makeDivSquare(16, undefined)); | |
| 229 } | |
| 230 } | |
| 231 html.push("</div>"); | |
| 232 debug(html.join("")); | |
| 233 } | |
| 234 | |
| 235 function makeDivSquare(size, color) { | |
| 236 size *= 4; | |
| 237 var c = color ? colors[color] : [255,255,255]; | |
| 238 var border = color ? 'solid' : 'dashed'; | |
| 239 return '<div style="float:left; width: ' + size + 'px; height: ' + size + | |
| 240 'px; background-color: ' + rgb(c) + | |
| 241 '; border: 1px ' + border + ' black; margin-right: 3px;"></div>'; | |
| 242 } | |
| 243 | |
| 244 function rgb(c) { | |
| 245 return 'rgb(' + c[0] + ',' + c[1] + ',' + c[2] +')'; | |
| 246 } | |
| 247 } | |
| 248 | |
| 249 init(); | |
| 250 successfullyParsed = true; | |
| 251 </script> | |
| 252 | |
| 253 <script>finishTest();</script> | |
| 254 </body> | |
| 255 </html> | |
| 256 |
