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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 the minimum number of uniforms are supported.</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="4" height="4" style="width: 40px; height: 30px;"></c
anvas> |
| 40 <div id="description"></div> |
| 41 <div id="console"></div> |
| 42 <script id="vshader" type="x-shader/x-vertex"> |
| 43 #define NUM_UNIFORMS 128 // See spec |
| 44 attribute vec4 vPosition; |
| 45 uniform vec4 uni[NUM_UNIFORMS]; |
| 46 varying vec4 color; |
| 47 void main() |
| 48 { |
| 49 gl_Position = vPosition; |
| 50 vec4 c = vec4(0,0,0,0); |
| 51 for (int ii = 0; ii < NUM_UNIFORMS; ++ii) { |
| 52 c += uni[ii]; |
| 53 } |
| 54 color = c; |
| 55 } |
| 56 </script> |
| 57 |
| 58 <script id="fshader" type="x-shader/x-fragment"> |
| 59 precision mediump float; |
| 60 varying vec4 color; |
| 61 void main() |
| 62 { |
| 63 gl_FragColor = color; |
| 64 } |
| 65 </script> |
| 66 <script id="vshader2" type="x-shader/x-vertex"> |
| 67 attribute vec4 vPosition; |
| 68 void main() |
| 69 { |
| 70 gl_Position = vPosition; |
| 71 } |
| 72 </script> |
| 73 |
| 74 <script id="fshader2" type="x-shader/x-fragment"> |
| 75 precision mediump float; |
| 76 #define NUM_UNIFORMS 16 // See spec |
| 77 uniform vec4 uni[NUM_UNIFORMS]; |
| 78 void main() |
| 79 { |
| 80 vec4 c = vec4(0,0,0,0); |
| 81 for (int ii = 0; ii < NUM_UNIFORMS; ++ii) { |
| 82 c += uni[ii]; |
| 83 } |
| 84 gl_FragColor = vec4(c.r, c.g, c.b, c.a / 120.0); |
| 85 } |
| 86 </script> |
| 87 <script> |
| 88 description(document.title); |
| 89 var wtu = WebGLTestUtils; |
| 90 var gl = wtu.create3DContext("example"); |
| 91 var program = wtu.setupTexturedQuad(gl); |
| 92 |
| 93 //------------------------------------------------------------------------------ |
| 94 var program = wtu.setupProgram(gl, ['vshader', 'fshader'], ['vPosition'], [0]); |
| 95 |
| 96 for (var ii = 0; ii < 128; ++ii) { |
| 97 var loc = gl.getUniformLocation(program, "uni[" + ii + "]"); |
| 98 gl.uniform4f(loc, 2/256, 2/512, 2/1024, ii/8128); |
| 99 } |
| 100 |
| 101 wtu.drawQuad(gl); |
| 102 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); |
| 103 wtu.checkCanvasRect(gl, 0, 0, gl.canvas.width, gl.canvas.height, [255, 127, 64,
255], "Should render 255,127,64,32 (+/-1)", 1); |
| 104 |
| 105 //------------------------------------------------------------------------------ |
| 106 var program = wtu.setupProgram(gl, ['vshader2', 'fshader2'], ['vPosition'], [0])
; |
| 107 |
| 108 for (var ii = 0; ii < 16; ++ii) { |
| 109 var loc = gl.getUniformLocation(program, "uni[" + ii + "]"); |
| 110 gl.uniform4f(loc, 16/2048, 16/1024, 16/512, ii); |
| 111 } |
| 112 |
| 113 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); |
| 114 wtu.drawQuad(gl); |
| 115 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); |
| 116 wtu.checkCanvasRect(gl, 0, 0, gl.canvas.width, gl.canvas.height, [32, 64, 127, 2
55], "Should render 32,64,127,255 (+/-1)", 1); |
| 117 |
| 118 successfullyParsed = true; |
| 119 |
| 120 </script> |
| 121 <script src="../../resources/js-test-post.js"></script> |
| 122 |
| 123 </body> |
| 124 </html> |
| 125 |
| 126 |
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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/