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comparison: content/canvas/test/webgl-conformance/conformance/glsl/misc/attrib-location-length-limits.html
content/canvas/test/webgl-conformance/conformance/glsl/misc/attrib-location-length-limits.html
- branch
- TOR_BUG_3246
- changeset 6
- 8bccb770b82d
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| -1:000000000000 | 0:5606dd5f2b23 |
|---|---|
| 1 <!DOCTYPE html> | |
| 2 <html> | |
| 3 <head> | |
| 4 <meta charset="utf-8"> | |
| 5 <title>WebGL attrib location length tests</title> | |
| 6 <link rel="stylesheet" href="../../../resources/js-test-style.css"/> | |
| 7 <link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/> | |
| 8 <script src="../../../resources/js-test-pre.js"></script> | |
| 9 <script src="../../resources/webgl-test.js"> </script> | |
| 10 <script src="../../resources/webgl-test-utils.js"> </script> | |
| 11 </head> | |
| 12 <body> | |
| 13 <canvas id="example" width="50" height="50"> | |
| 14 There is supposed to be an example drawing here, but it's not important. | |
| 15 </canvas> | |
| 16 <div id="description">Verify limits on the lengths of attribute locations per WebGL spec, "Maximum Uniform and Attribute Location Lengths".</div> | |
| 17 <div id="console"></div> | |
| 18 <script id="goodVertexShader" type="x-shader/x-vertex"> | |
| 19 // A vertex shader where the needed attrib location is exactly 256 characters. | |
| 20 attribute vec4 vPosition0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456; | |
| 21 | |
| 22 void main() | |
| 23 { | |
| 24 gl_Position = vPosition0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456; | |
| 25 } | |
| 26 </script> | |
| 27 <script id="badVertexShader" type="x-shader/x-vertex"> | |
| 28 // A vertex shader where the needed attrib location is 257 characters. | |
| 29 attribute vec4 vPosition01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567; | |
| 30 | |
| 31 void main() | |
| 32 { | |
| 33 gl_Position = vPosition01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567; | |
| 34 } | |
| 35 </script> | |
| 36 <script id="fragmentShader" type="x-shader/x-fragment"> | |
| 37 precision mediump float; | |
| 38 | |
| 39 void main() { | |
| 40 gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0); | |
| 41 } | |
| 42 </script> | |
| 43 <script> | |
| 44 if (window.initNonKhronosFramework) { | |
| 45 window.initNonKhronosFramework(false); | |
| 46 } | |
| 47 description("test attrib location length limit"); | |
| 48 | |
| 49 var wtu = WebGLTestUtils; | |
| 50 var gl = wtu.create3DContext("example"); | |
| 51 | |
| 52 debug("Test attrib location underneath the length limit"); | |
| 53 var program = wtu.loadProgramFromScript(gl, "goodVertexShader", "fragmentShader"); | |
| 54 shouldBe('gl.getProgramParameter(program, gl.LINK_STATUS)', 'true'); | |
| 55 var attribLoc = gl.getAttribLocation(program, "vPosition0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456"); | |
| 56 if (attribLoc == -1) { | |
| 57 testFailed("attrib location was -1, should not be"); | |
| 58 } else { | |
| 59 testPassed("attrib location should not be -1"); | |
| 60 } | |
| 61 wtu.glErrorShouldBe(gl, gl.NONE); | |
| 62 | |
| 63 debug("Test attrib location over the length limit"); | |
| 64 debug("Shader compilation or link should fail"); | |
| 65 shouldBe('wtu.loadProgramFromScriptExpectError(gl, "badVertexShader", "fragmentShader")', 'null'); | |
| 66 wtu.glErrorShouldBe(gl, gl.NONE); | |
| 67 | |
| 68 debug("Attempt to bind too-long attrib location should produce error"); | |
| 69 program = gl.createProgram(); | |
| 70 gl.bindAttribLocation(program, 0, "vPosition01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567"); | |
| 71 wtu.glErrorShouldBe(gl, gl.INVALID_VALUE); | |
| 72 | |
| 73 debug("Attempt to fetch too-long attrib location should produce error"); | |
| 74 program = wtu.loadStandardProgram(gl); | |
| 75 shouldBe('gl.getAttribLocation(program, "vPosition01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567")', '-1'); | |
| 76 wtu.glErrorShouldBe(gl, gl.INVALID_VALUE); | |
| 77 | |
| 78 successfullyParsed = true; | |
| 79 </script> | |
| 80 <script>finishTest();</script> | |
| 81 </body> | |
| 82 </html> |
