| OLD | NEW |
|---|
| (Empty) | |
| 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 Slow Shader example.</title> |
| 33 <link rel="stylesheet" href="../resources/js-test-style.css"/> |
| 34 <script src="../resources/js-test-pre.js"></script> |
| 35 <script src="../conformance/resources/webgl-test-utils.js"> </script> |
| 36 </head> |
| 37 <body> |
| 38 <canvas id="example" width="1024" height="1024" style="width: 40px; height: 40px
;"> |
| 39 </canvas> |
| 40 <div id="description"></div> |
| 41 <div id="console"></div> |
| 42 <script id="slow" type="text/something-not-javascript"> |
| 43 precision mediump float; |
| 44 uniform sampler2D tex; |
| 45 varying vec2 texCoord; |
| 46 void main() { |
| 47 gl_FragColor = texture2D(tex, texture2D(tex, texture2D(tex, texCoord).xy).xy); |
| 48 } |
| 49 </script> |
| 50 <script> |
| 51 window.onload = main; |
| 52 |
| 53 debug("Tests drawing a very slow shader."); |
| 54 var wtu = WebGLTestUtils; |
| 55 var canvas = document.getElementById("example"); |
| 56 canvas.addEventListener("webglcontextlost", function(e) { e.preventDefault(); },
false); |
| 57 canvas.addEventListener("webglcontextrestored", function(e) { }, false); |
| 58 var gl = wtu.create3DContext(canvas); |
| 59 var maxTexSize = gl.getParameter(gl.MAX_TEXTURE_SIZE); |
| 60 var texSize = Math.min(maxTexSize, 4096); |
| 61 debug("Max Texture size: " + maxTexSize); |
| 62 debug("Texture size: " + texSize); |
| 63 var shaderSource = |
| 64 document.getElementById("slow").text.replace(/\$size/g, texSize + ".0"); |
| 65 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after getting a context"); |
| 66 var vs = wtu.setupSimpleTextureVertexShader(gl); |
| 67 var fs = wtu.loadShader( |
| 68 gl, |
| 69 shaderSource, |
| 70 gl.FRAGMENT_SHADER) |
| 71 var program = wtu.setupProgram( |
| 72 gl, |
| 73 [vs, fs], |
| 74 ['vPosition', 'texCoord0'], |
| 75 [0, 1]); |
| 76 wtu.setupUnitQuad(gl, 0, 1); |
| 77 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after program setup"); |
| 78 var tex = gl.createTexture(); |
| 79 gl.enable(gl.BLEND); |
| 80 gl.disable(gl.DEPTH_TEST); |
| 81 |
| 82 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after creating texture"); |
| 83 debug("preparing..."); |
| 84 var numBytes = texSize * texSize * 4; |
| 85 var pixelBuf = new ArrayBuffer(numBytes); |
| 86 var pixels = new Uint8Array(pixelBuf); |
| 87 for (var ii = 0; ii < numBytes; ++ii) { |
| 88 pixels[ii] = Math.random() * 255; |
| 89 } |
| 90 gl.bindTexture(gl.TEXTURE_2D, tex); |
| 91 gl.texImage2D( |
| 92 gl.TEXTURE_2D, 0, gl.RGBA, texSize, texSize, 0, |
| 93 gl.RGBA, gl.UNSIGNED_BYTE, pixels); |
| 94 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after texture setup"); |
| 95 |
| 96 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR); |
| 97 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR); |
| 98 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT); |
| 99 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT); |
| 100 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after texture param setting"); |
| 101 |
| 102 var loc = gl.getUniformLocation(program, "tex"); |
| 103 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after getting tex location"); |
| 104 gl.uniform1i(loc, 0); |
| 105 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after setting tex uniform"); |
| 106 |
| 107 var numQuads = 1000; |
| 108 var indexBuf = new ArrayBuffer(numQuads * 6); |
| 109 var indices = new Uint8Array(indexBuf); |
| 110 for (var ii = 0; ii < numQuads; ++ii) { |
| 111 var offset = ii * 6; |
| 112 indices[offset + 0] = 0; |
| 113 indices[offset + 1] = 1; |
| 114 indices[offset + 2] = 2; |
| 115 indices[offset + 3] = 3; |
| 116 indices[offset + 4] = 4; |
| 117 indices[offset + 5] = 5; |
| 118 } |
| 119 var indexBuffer = gl.createBuffer(); |
| 120 gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexBuffer); |
| 121 gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, indices, gl.STATIC_DRAW); |
| 122 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after setting up indices"); |
| 123 |
| 124 function main () { |
| 125 if (confirm( |
| 126 "after clicking ok your machine may be come unresponsive or crash")) { |
| 127 gl.drawElements(gl.TRIANGLES, numQuads * 6, gl.UNSIGNED_BYTE, 0); |
| 128 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after drawing"); |
| 129 } else { |
| 130 debug("cancelled"); |
| 131 } |
| 132 } |
| 133 |
| 134 successfullyParsed = true; |
| 135 </script> |
| 136 </body> |
| 137 </html> |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 10399113:
Roll webgl conformance tests to r17874: part 2, adding r17874 (Closed)
Base URL: svn://chrome-svn/chrome/trunk/deps/