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| 1 <!-- |
| 2 |
| 3 /* |
| 4 ** Copyright (c) 2012 The Khronos Group Inc. |
| 5 ** |
| 6 ** Permission is hereby granted, free of charge, to any person obtaining a |
| 7 ** copy of this software and/or associated documentation files (the |
| 8 ** "Materials"), to deal in the Materials without restriction, including |
| 9 ** without limitation the rights to use, copy, modify, merge, publish, |
| 10 ** distribute, sublicense, and/or sell copies of the Materials, and to |
| 11 ** permit persons to whom the Materials are furnished to do so, subject to |
| 12 ** the following conditions: |
| 13 ** |
| 14 ** The above copyright notice and this permission notice shall be included |
| 15 ** in all copies or substantial portions of the Materials. |
| 16 ** |
| 17 ** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 18 ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 19 ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| 20 ** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| 21 ** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| 22 ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| 23 ** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. |
| 24 */ |
| 25 |
| 26 --> |
| 27 |
| 28 <!DOCTYPE html> |
| 29 <html> |
| 30 <head> |
| 31 <meta charset="utf-8"> |
| 32 <title>WebGL texture mips conformance test.</title> |
| 33 <link rel="stylesheet" href="../../resources/js-test-style.css"/> |
| 34 <script src="../../resources/js-test-pre.js"></script> |
| 35 <script src="../resources/webgl-test.js"> </script> |
| 36 <script src="../resources/webgl-test-utils.js"></script> |
| 37 </head> |
| 38 <body> |
| 39 <canvas id="example" width="2" height="2" style="width: 40px; height: 40px;"></c
anvas> |
| 40 <div id="description"></div> |
| 41 <div id="console"></div> |
| 42 <script id="vshader" type="x-shader/x-vertex"> |
| 43 uniform vec4 uMult; |
| 44 attribute vec4 vPosition; |
| 45 attribute vec2 texCoord0; |
| 46 varying vec2 texCoord; |
| 47 void main() |
| 48 { |
| 49 gl_Position = vPosition * uMult; |
| 50 texCoord = texCoord0; |
| 51 } |
| 52 </script> |
| 53 |
| 54 <script id="fshader" type="x-shader/x-fragment"> |
| 55 precision mediump float; |
| 56 uniform sampler2D tex; |
| 57 varying vec2 texCoord; |
| 58 void main() |
| 59 { |
| 60 gl_FragColor = texture2D(tex, texCoord); |
| 61 } |
| 62 </script> |
| 63 <script> |
| 64 var canvas; |
| 65 var wtu = WebGLTestUtils; |
| 66 function init() |
| 67 { |
| 68 if (window.initNonKhronosFramework) { |
| 69 window.initNonKhronosFramework(false); |
| 70 } |
| 71 |
| 72 description("Checks mip issues"); |
| 73 |
| 74 canvas = document.getElementById("example"); |
| 75 shouldBe("canvas.width", "2"); |
| 76 shouldBe("canvas.height", "2"); |
| 77 |
| 78 gl = wtu.create3DContext(canvas); |
| 79 |
| 80 var tex = gl.createTexture(); |
| 81 gl.bindTexture(gl.TEXTURE_2D, tex); |
| 82 gl.generateMipmap(gl.TEXTURE_2D); |
| 83 glErrorShouldBe(gl, gl.INVALID_OPERATION, "for generateMipmap with mip 0 is 0x
0"); |
| 84 gl.texImage2D( |
| 85 gl.TEXTURE_2D, 1, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, |
| 86 new Uint8Array(4)); |
| 87 gl.generateMipmap(gl.TEXTURE_2D); |
| 88 glErrorShouldBe(gl, gl.INVALID_OPERATION, "for generateMipmap with mip 0 is 0x
0"); |
| 89 |
| 90 tex = gl.createTexture(); |
| 91 gl.bindTexture(gl.TEXTURE_CUBE_MAP, tex); |
| 92 gl.generateMipmap(gl.TEXTURE_CUBE_MAP); |
| 93 glErrorShouldBe(gl, gl.INVALID_OPERATION, "for generateMipmap with mip 0 is 0x
0"); |
| 94 |
| 95 var faces = [ |
| 96 gl.TEXTURE_CUBE_MAP_POSITIVE_X, |
| 97 gl.TEXTURE_CUBE_MAP_NEGATIVE_X, |
| 98 gl.TEXTURE_CUBE_MAP_POSITIVE_Y, |
| 99 gl.TEXTURE_CUBE_MAP_NEGATIVE_Y, |
| 100 gl.TEXTURE_CUBE_MAP_POSITIVE_Z, |
| 101 gl.TEXTURE_CUBE_MAP_NEGATIVE_Z |
| 102 ]; |
| 103 for (var ii = 0; ii < faces.length; ++ii) { |
| 104 gl.texImage2D( |
| 105 faces[ii], 0, gl.RGBA, 2, 2, 0, gl.RGBA, gl.UNSIGNED_BYTE, |
| 106 new Uint8Array(4 * 2 * 2)); |
| 107 gl.generateMipmap(gl.TEXTURE_CUBE_MAP); |
| 108 glErrorShouldBe(gl, ii == 5 ? gl.NO_ERROR : gl.INVALID_OPERATION, "for gener
ateMipmap with " + (ii + 1) + " faces"); |
| 109 } |
| 110 |
| 111 wtu.setupUnitQuad(gl, 0, 1); |
| 112 var program = wtu.setupProgram( |
| 113 gl, ['vshader', 'fshader'], ['vPosition', 'texCoord0'], [0, 1]); |
| 114 |
| 115 gl.disable(gl.DEPTH_TEST); |
| 116 gl.disable(gl.BLEND); |
| 117 |
| 118 var colors = { |
| 119 blue: [0, 0, 255, 255], |
| 120 red: [255, 0, 0, 255], |
| 121 green: [0, 255, 0, 255], |
| 122 cyan: [128, 255, 255, 255], |
| 123 black: [0, 0, 0, 255], |
| 124 blank: [0, 0, 0, 0] |
| 125 }; |
| 126 |
| 127 var mips = [ |
| 128 ]; |
| 129 |
| 130 var texLoc = gl.getUniformLocation(program, "tex"); |
| 131 gl.uniform1i(texLoc, 0); |
| 132 var multLoc = gl.getUniformLocation(program, "uMult"); |
| 133 |
| 134 // ---------------------------------------------------- |
| 135 var clearTex = createTexture(); |
| 136 gl.uniform4f(multLoc, 1, 1, 1, 1); |
| 137 gl.bindTexture(gl.TEXTURE_2D, clearTex); |
| 138 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 16, 16, 0, gl.RGBA, gl.UNSIGNED_BYTE,
null); |
| 139 debug('gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 16, 16, 0, gl.RGBA, gl.UNSIGNE
D_BYTE, null);'); |
| 140 setMipData(0, 16, 'blank'); |
| 141 makeDivMipChain(); |
| 142 generateMipmap(); |
| 143 check('blank', "texture created with null that has all mips"); |
| 144 |
| 145 // ---------------------------------------------------- |
| 146 var tex = createTexture(); |
| 147 gl.uniform4f(multLoc, 1, 1, 1, 1); |
| 148 |
| 149 gl.bindTexture(gl.TEXTURE_2D, tex); |
| 150 // 16x16 texture no mips |
| 151 fillLevel(tex, 0, 16, 'cyan'); |
| 152 |
| 153 check('black', |
| 154 "texture that is missing mips when TEXTURE_MIN_FILTER not NEAREST or LIN
EAR"); |
| 155 |
| 156 generateMipmap(); |
| 157 |
| 158 check('cyan', "texture that has all mips"); |
| 159 |
| 160 // Fill in the bottom 2 mips with a different color. |
| 161 fillLevel(tex, 4, 1, 'green'); |
| 162 fillLevel(tex, 3, 2, 'green'); |
| 163 |
| 164 // Choose the nearest mip |
| 165 texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_NEAREST); |
| 166 |
| 167 check('green', "texture that is only using the smallest 2 mips"); |
| 168 |
| 169 gl.uniform4f(multLoc, 16, 16, 1, 1); |
| 170 |
| 171 check('cyan', "texture that is using only the largest 2 mips"); |
| 172 |
| 173 // Set the top level |
| 174 fillLevel(tex, 0, 1, 'red'); |
| 175 check('red', |
| 176 "texture that is only using the top level even though other levels are d
efined"); |
| 177 |
| 178 // Set the top 2 levels using generateMipmap |
| 179 fillLevel(tex, 0, 2, 'blue'); |
| 180 generateMipmap(); |
| 181 |
| 182 check('blue', |
| 183 "texture that is only using the top 2 levels even though other levels ar
e defined"); |
| 184 |
| 185 // Set the top 2 levels back to sizes that end up using levels 2, 3, and 4 aga
in. |
| 186 fillLevel(tex, 0, 16, 'blue'); |
| 187 fillLevel(tex, 1, 8, 'blue'); |
| 188 check('blue', "texture that is only using the largest 2 mips"); |
| 189 gl.uniform4f(multLoc, 1, 1, 1, 1); |
| 190 check('green', "texture that is only using the smallest 2 mips"); |
| 191 |
| 192 // ---------------------------------------------------- |
| 193 var tex = createTexture(); |
| 194 gl.uniform4f(multLoc, 1, 1, 1, 1); |
| 195 fillLevel(tex, 0, 8, 'cyan'); |
| 196 generateMipmap(); |
| 197 check('cyan', "texture that has 3 mips"); |
| 198 |
| 199 fillLevel(tex, 0, 16, 'blue'); |
| 200 texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR); |
| 201 check('blue', "texture that is only using top mips"); |
| 202 |
| 203 fillLevel(tex, 0, 8, 'red'); |
| 204 texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_NEAREST); |
| 205 check('cyan', "texture that is only using smallest mips"); |
| 206 |
| 207 gl.uniform4f(multLoc, 16, 16, 1, 1); |
| 208 check('red', "texture that is using only the largest mip"); |
| 209 |
| 210 // ---------------------------------------------------- |
| 211 var tex = createTexture(); |
| 212 gl.uniform4f(multLoc, 1, 1, 1, 1); |
| 213 fillLevel(tex, 2, 1, 'green'); |
| 214 fillLevel(tex, 1, 2, 'green'); |
| 215 fillLevel(tex, 0, 4, 'green'); |
| 216 check('green', "texture that was built smallest mip first"); |
| 217 |
| 218 // ---------------------------------------------------- |
| 219 var tex = createTexture(); |
| 220 gl.uniform4f(multLoc, 1, 1, 1, 1); |
| 221 fillLevel(tex, 0, 16, 'red'); |
| 222 generateMipmap(); |
| 223 check('red', "texture with 1 genmipmaps"); |
| 224 fillLevel(tex, 0, 16, 'blue'); |
| 225 generateMipmap(); |
| 226 fillLevel(tex, 0, 16, 'green'); |
| 227 generateMipmap(); |
| 228 check('green', "texture with 2 genmipmaps"); |
| 229 |
| 230 // ---------------------------------------------------- |
| 231 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors."); |
| 232 |
| 233 function createTexture() { |
| 234 debug("<hr/>gl.createTexture()"); |
| 235 mips = []; |
| 236 makeDivMipChain(); |
| 237 return gl.createTexture(); |
| 238 } |
| 239 |
| 240 function texParameteri(target, pname, value) { |
| 241 debug("gl.texParameteri(" + |
| 242 wtu.glEnumToString(gl, target) + ", " + |
| 243 wtu.glEnumToString(gl, pname) + ", " + |
| 244 wtu.glEnumToString(gl, value) + ")") |
| 245 gl.texParameteri(target, pname, value); |
| 246 } |
| 247 |
| 248 function generateMipmap() { |
| 249 debug("gl.generateMipmap(gl.TEXTURE_2D)"); |
| 250 gl.generateMipmap(gl.TEXTURE_2D); |
| 251 var mip0 = mips[0]; |
| 252 var size = mip0.size; |
| 253 var level = 1; |
| 254 for(;;) { |
| 255 size = Math.floor(size / 2); |
| 256 if (!size) { |
| 257 break; |
| 258 } |
| 259 setMipData(level, size, mip0.color); |
| 260 ++level; |
| 261 } |
| 262 makeDivMipChain(); |
| 263 } |
| 264 |
| 265 function check(color, msg) { |
| 266 wtu.drawQuad(gl); |
| 267 wtu.checkCanvas(gl, colors[color], msg + " should draw with " + color); |
| 268 } |
| 269 |
| 270 function fillLevel(tex, level, size, color) { |
| 271 setMipData(level, size, color); |
| 272 debug("gl.texImage2D(gl.TEXTURE_2D, " + level + ", gl.RGBA, " + size + ", "
+ size + |
| 273 ", 0, gl.RGBA, gl.UNSIGNED_BYTE, " + color + ");"); |
| 274 wtu.fillTexture(gl, tex, size, size, colors[color], level); |
| 275 makeDivMipChain(); |
| 276 } |
| 277 |
| 278 function setMipData(level, size, color) { |
| 279 mips[level] = { |
| 280 size: size, |
| 281 color: color |
| 282 }; |
| 283 } |
| 284 |
| 285 function makeDivMipChain(color) { |
| 286 var html = [ |
| 287 '<div style="height: 68px; margin-top: 5px">', |
| 288 '<div style="float:left;">mips: </div>']; |
| 289 for (var ii = 0; ii < 5; ++ii) { |
| 290 var mip = mips[ii]; |
| 291 if (mip) { |
| 292 html.push(makeDivSquare(mip.size, mip.color)); |
| 293 } else { |
| 294 html.push(makeDivSquare(16, undefined)); |
| 295 } |
| 296 } |
| 297 html.push("</div>"); |
| 298 debug(html.join("")); |
| 299 } |
| 300 |
| 301 function makeDivSquare(size, color) { |
| 302 size *= 4; |
| 303 var c = color ? colors[color] : [255,255,255]; |
| 304 var border = color ? 'solid' : 'dashed'; |
| 305 return '<div style="float:left; width: ' + size + 'px; height: ' + size + |
| 306 'px; background-color: ' + rgb(c) + |
| 307 '; border: 1px ' + border + ' black; margin-right: 3px;"></div>'; |
| 308 } |
| 309 |
| 310 function rgb(c) { |
| 311 return 'rgb(' + c[0] + ',' + c[1] + ',' + c[2] +')'; |
| 312 } |
| 313 } |
| 314 |
| 315 init(); |
| 316 successfullyParsed = true; |
| 317 </script> |
| 318 |
| 319 <script src="../../resources/js-test-post.js"></script> |
| 320 </body> |
| 321 </html> |
| 322 |
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Chromium Code Reviews
Issue 10399113:
Roll webgl conformance tests to r17874: part 2, adding r17874 (Closed)
Base URL: svn://chrome-svn/chrome/trunk/deps/