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| 1 <!DOCTYPE html> |
| 2 <html> |
| 3 <head> |
| 4 <meta charset="utf-8"> |
| 5 <!-- |
| 6 |
| 7 /* |
| 8 ** Copyright (c) 2012 The Khronos Group Inc. |
| 9 ** |
| 10 ** Permission is hereby granted, free of charge, to any person obtaining a |
| 11 ** copy of this software and/or associated documentation files (the |
| 12 ** "Materials"), to deal in the Materials without restriction, including |
| 13 ** without limitation the rights to use, copy, modify, merge, publish, |
| 14 ** distribute, sublicense, and/or sell copies of the Materials, and to |
| 15 ** permit persons to whom the Materials are furnished to do so, subject to |
| 16 ** the following conditions: |
| 17 ** |
| 18 ** The above copyright notice and this permission notice shall be included |
| 19 ** in all copies or substantial portions of the Materials. |
| 20 ** |
| 21 ** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 22 ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 23 ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| 24 ** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| 25 ** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| 26 ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| 27 ** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. |
| 28 */ |
| 29 |
| 30 --> |
| 31 <title>WebGL uniform location length tests</title> |
| 32 <link rel="stylesheet" href="../../../resources/js-test-style.css"/> |
| 33 <link rel="stylesheet" href="../../resources/glsl-feature-tests.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="50" height="50"> |
| 40 There is supposed to be an example drawing here, but it's not important. |
| 41 </canvas> |
| 42 <div id="description">Verify limits on the lengths of uniform locations per WebG
L spec, "Maximum Uniform and Attribute Location Lengths".</div> |
| 43 <div id="console"></div> |
| 44 <script id="goodVertexShader" type="x-shader/x-vertex"> |
| 45 // A vertex shader where the needed uniform location is exactly 256 characters. |
| 46 struct Nesting2 { |
| 47 vec4 identifier62CharactersLong_01234567890123456789012345678901234; |
| 48 }; |
| 49 |
| 50 struct Nesting1 { |
| 51 Nesting2 identifier64CharactersLong_0123456789012345678901234567890123456; |
| 52 }; |
| 53 |
| 54 uniform Nesting1 identifier128CharactersLong_01234567890123456789012345678901234
56789012345678901234567890123456789012345678901234567890123456789; |
| 55 |
| 56 void main() { |
| 57 gl_Position = identifier128CharactersLong_0123456789012345678901234567890123
456789012345678901234567890123456789012345678901234567890123456789.identifier64C
haractersLong_0123456789012345678901234567890123456.identifier62CharactersLong_0
1234567890123456789012345678901234; |
| 58 } |
| 59 </script> |
| 60 <script id="badVertexShader" type="x-shader/x-vertex"> |
| 61 // A vertex shader where the needed uniform location is 257 characters. |
| 62 struct Nesting2 { |
| 63 vec4 identifier63CharactersLong_012345678901234567890123456789012345; |
| 64 }; |
| 65 |
| 66 struct Nesting1 { |
| 67 Nesting2 identifier64CharactersLong_0123456789012345678901234567890123456; |
| 68 }; |
| 69 |
| 70 uniform Nesting1 identifier128CharactersLong_01234567890123456789012345678901234
56789012345678901234567890123456789012345678901234567890123456789; |
| 71 |
| 72 void main() { |
| 73 Nesting2 temp = identifier128CharactersLong_01234567890123456789012345678901
23456789012345678901234567890123456789012345678901234567890123456789.identifier6
4CharactersLong_0123456789012345678901234567890123456; |
| 74 gl_Position = temp.identifier63CharactersLong_012345678901234567890123456789
012345; |
| 75 } |
| 76 </script> |
| 77 <script id="fragmentShader" type="x-shader/x-fragment"> |
| 78 precision mediump float; |
| 79 |
| 80 void main() { |
| 81 gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0); |
| 82 } |
| 83 </script> |
| 84 <script> |
| 85 if (window.initNonKhronosFramework) { |
| 86 window.initNonKhronosFramework(false); |
| 87 } |
| 88 |
| 89 var wtu = WebGLTestUtils; |
| 90 var gl = wtu.create3DContext("example"); |
| 91 |
| 92 debug("Test uniform location underneath the length limit"); |
| 93 var program = wtu.loadProgramFromScript(gl, "goodVertexShader", "fragmentShader"
); |
| 94 shouldBe('gl.getProgramParameter(program, gl.LINK_STATUS)', 'true'); |
| 95 var uniformLoc = gl.getUniformLocation(program, "identifier128CharactersLong_012
34567890123456789012345678901234567890123456789012345678901234567890123456789012
34567890123456789.identifier64CharactersLong_01234567890123456789012345678901234
56.identifier62CharactersLong_01234567890123456789012345678901234"); |
| 96 shouldBeNonNull('uniformLoc'); |
| 97 wtu.glErrorShouldBe(gl, gl.NONE); |
| 98 |
| 99 debug("Test uniform location over the length limit"); |
| 100 program = wtu.loadProgramFromScript(gl, "badVertexShader", "fragmentShader"); |
| 101 wtu.glErrorShouldBe(gl, gl.NONE); |
| 102 shouldBe('gl.getProgramParameter(program, gl.LINK_STATUS)', 'true'); |
| 103 var uniformLoc = gl.getUniformLocation(program, "identifier128CharactersLong_012
34567890123456789012345678901234567890123456789012345678901234567890123456789012
34567890123456789.identifier64CharactersLong_01234567890123456789012345678901234
56.identifier63CharactersLong_012345678901234567890123456789012345"); |
| 104 wtu.glErrorShouldBe(gl, gl.INVALID_VALUE); |
| 105 shouldBeNull('uniformLoc'); |
| 106 |
| 107 successfullyParsed = true; |
| 108 </script> |
| 109 <script src="../../../resources/js-test-post.js"></script> |
| 110 </body> |
| 111 </html> |
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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/