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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>Test the WebGL premultipledAlpha context creation flag.</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 <div id="description"></div><div id="console"></div> |
| 40 <script> |
| 41 var wtu = WebGLTestUtils; |
| 42 |
| 43 var tests = [ |
| 44 // If premultipledAlpha is true then |
| 45 // [texture] [canvas] [dataURL] |
| 46 // 32, 64, 128, 128 -> 64, 128, 255, 128 -> 64, 128, 255, 128 |
| 47 { creationAttributes: {}, |
| 48 sentColor: [32, 64, 128, 128], |
| 49 expectedColor: [64, 128, 255, 128], |
| 50 errorRange: 2, |
| 51 imageFormat: "image/png" |
| 52 }, |
| 53 // If premultipledAlpha is true then |
| 54 // [texture] [canvas] [texture] |
| 55 // 32, 64, 128, 128 -> 64, 128, 255, 128 -> 64, 128, 255, 128 |
| 56 { creationAttributes: {}, |
| 57 sentColor: [32, 64, 128, 128], |
| 58 expectedColor: [64, 128, 255, 128], |
| 59 errorRange: 2, |
| 60 }, |
| 61 // If premultipledAlpha is false then |
| 62 // [texture] [canvas] [dataURL] |
| 63 // 255, 192, 128, 1 -> 255, 192, 128, 1 -> 255, 192, 128, 1 |
| 64 { creationAttributes: {premultipliedAlpha: false}, |
| 65 sentColor: [255, 192, 128, 1], |
| 66 expectedColor: [255, 192, 128, 1], |
| 67 errorRange: 0, |
| 68 imageFormat: "image/png" |
| 69 }, |
| 70 // If premultipledAlpha is false then |
| 71 // [texture] [canvas] [texture] |
| 72 // 255, 192, 128, 1 -> 255, 192, 128, 1 -> 255, 192, 128, 1 |
| 73 { creationAttributes: {premultipliedAlpha: false}, |
| 74 sentColor: [255, 192, 128, 1], |
| 75 expectedColor: [255, 192, 128, 1], |
| 76 errorRange: 0, |
| 77 }, |
| 78 // If premultipledAlpha is false then |
| 79 // [texture] [canvas] [dataURL] |
| 80 // 255, 255, 255, 128 -> 255, 255, 255, 128 -> 128, 128, 128, 255 |
| 81 { creationAttributes: {premultipliedAlpha: false}, |
| 82 sentColor: [255, 255, 255, 128], |
| 83 expectedColor: [128, 128, 128, 255], |
| 84 errorRange: 2, |
| 85 imageFormat: "image/jpeg" |
| 86 }, |
| 87 // If premultipledAlpha is true then |
| 88 // [texture] [canvas] [dataURL] |
| 89 // 128, 128, 128, 128 -> 255, 255, 255, 128 -> 128, 128, 128, 255 |
| 90 { creationAttributes: {}, |
| 91 sentColor: [128, 128, 128, 128], |
| 92 expectedColor: [128, 128, 128, 255], |
| 93 errorRange: 2, |
| 94 imageFormat: "image/jpeg" |
| 95 } |
| 96 ]; |
| 97 |
| 98 var g_count = 0; |
| 99 var gl; |
| 100 var canvas; |
| 101 var premultipledAlpha; |
| 102 |
| 103 description("Test the WebGL premultipledAlpha context creation flag."); |
| 104 doNextTest(); |
| 105 function doNextTest() { |
| 106 if (g_count < tests.length) { |
| 107 var test = tests[g_count++]; |
| 108 canvas = document.createElement("canvas"); |
| 109 // Need to preserve drawing buffer to load it in a callback |
| 110 test.creationAttributes.preserveDrawingBuffer = true; |
| 111 gl = wtu.create3DContext(canvas, test.creationAttributes); |
| 112 var premultipliedAlpha = test.creationAttributes.premultipliedAlpha != fals
e; |
| 113 debug("") |
| 114 debug("testing: premultipliedAlpha: " + premultipliedAlpha + " imageFormat:
" + test.imageFormat); |
| 115 |
| 116 shouldBe('gl.getContextAttributes().premultipledAlpha', 'premultipledAlpha'
); |
| 117 shouldBeTrue('gl.getContextAttributes().preserveDrawingBuffer'); |
| 118 |
| 119 console.log(gl.getContextAttributes()); |
| 120 var program = wtu.setupTexturedQuad(gl); |
| 121 |
| 122 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); |
| 123 var tex = gl.createTexture(); |
| 124 wtu.fillTexture(gl, tex, 2, 2, test.sentColor, 0); |
| 125 var loc = gl.getUniformLocation(program, "tex"); |
| 126 gl.uniform1i(loc, 0); |
| 127 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR); |
| 128 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR); |
| 129 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); |
| 130 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); |
| 131 |
| 132 wtu.drawQuad(gl); |
| 133 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from drawing."); |
| 134 |
| 135 function loadTexture() { |
| 136 var pngTex = gl.createTexture(); |
| 137 // not needed as it's the default |
| 138 // gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false); |
| 139 gl.pixelStorei(gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, false); |
| 140 gl.bindTexture(gl.TEXTURE_2D, pngTex); |
| 141 if (test.imageFormat) { |
| 142 // create texture from image |
| 143 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, th
is); |
| 144 } else { |
| 145 // create texture from canvas |
| 146 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, ca
nvas); |
| 147 } |
| 148 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR); |
| 149 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR); |
| 150 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); |
| 151 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); |
| 152 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from creating copy.
"); |
| 153 wtu.drawQuad(gl); |
| 154 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from 2nd drawing.")
; |
| 155 wtu.checkCanvas( |
| 156 gl, test.expectedColor, |
| 157 "should draw with " + test.expectedColor, test.errorRange); |
| 158 |
| 159 doNextTest(); |
| 160 } |
| 161 |
| 162 if (test.imageFormat) { |
| 163 // Load canvas into string using toDataURL |
| 164 var imageUrl = canvas.toDataURL(test.imageFormat); |
| 165 if (test.imageFormat != "image/png" && |
| 166 (imageUrl.indexOf("data:image/png,") == 0 || |
| 167 imageUrl.indexOf("data:image/png;") == 0)) { |
| 168 debug("Image format " + test.imageFormat + " not supported; skipping")
; |
| 169 setTimeout(doNextTest, 0); |
| 170 } else { |
| 171 // Load string into the texture |
| 172 var input = document.createElement("img"); |
| 173 input.onload = loadTexture; |
| 174 input.src = imageUrl; |
| 175 } |
| 176 } else { |
| 177 // Load canvas into the texture asynchronously (to prevent unbounded sta
ck consumption) |
| 178 setTimeout(loadTexture, 0); |
| 179 } |
| 180 } else { |
| 181 successfullyParsed = true; |
| 182 finishTest(); |
| 183 } |
| 184 } |
| 185 |
| 186 </script> |
| 187 |
| 188 </body> |
| 189 </html> |
| 190 |
| 191 |
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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/