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| 1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" | |
| 2 "http://www.w3.org/TR/html4/loose.dtd"> | |
| 3 <html> | |
| 4 <head> | |
| 5 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> | |
| 6 <title>WebGL vertexAttribPointer Conformance Tests</title> | |
| 7 <script src="resources/desktop-gl-constants.js" type="text/javascript"></script> | |
| 8 <script src="../../../resources/js-test.js"></script> | |
| 9 <script src="resources/webgl-test.js"></script> | |
| 10 <script src="resources/webgl-test-utils.js"></script> | |
| 11 </head> | |
| 12 <body> | |
| 13 <div id="description"></div> | |
| 14 <div id="console"></div> | |
| 15 <canvas id="canvas" width="2" height="2"> </canvas> | |
| 16 <script> | |
| 17 description("This test checks vertexAttribPointer behaviors in WebGL."); | |
| 18 | |
| 19 debug(""); | |
| 20 debug("Canvas.getContext"); | |
| 21 | |
| 22 if (window.internals) | |
| 23 window.internals.settings.setWebGLErrorsToConsoleEnabled(false); | |
| 24 | |
| 25 var wtu = WebGLTestUtils; | |
| 26 var gl = create3DContext(document.getElementById("canvas")); | |
| 27 if (!gl) { | |
| 28 testFailed("context does not exist"); | |
| 29 } else { | |
| 30 testPassed("context exists"); | |
| 31 | |
| 32 debug(""); | |
| 33 debug("Checking gl.vertexAttribPointer."); | |
| 34 | |
| 35 if (!gl.FIXED) { | |
| 36 gl.FIXED = 0x140C; | |
| 37 } | |
| 38 | |
| 39 gl.vertexAttribPointer(0, 3, gl.FLOAT, 0, 0, 12); | |
| 40 glErrorShouldBe(gl, gl.INVALID_OPERATION, | |
| 41 "vertexAttribPointer should fail if no buffer is bound"); | |
| 42 | |
| 43 var vertexObject = gl.createBuffer(); | |
| 44 gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject); | |
| 45 gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(0), gl.STATIC_DRAW); | |
| 46 | |
| 47 gl.vertexAttribPointer(0, 1, gl.INT, 0, 0, 0); | |
| 48 glErrorShouldBe(gl, gl.INVALID_ENUM, | |
| 49 "vertexAttribPointer should not support INT"); | |
| 50 gl.vertexAttribPointer(0, 1, gl.UNSIGNED_INT, 0, 0, 0); | |
| 51 glErrorShouldBe(gl, gl.INVALID_ENUM, | |
| 52 "vertexAttribPointer should not support UNSIGNED_INT"); | |
| 53 gl.vertexAttribPointer(0, 1, gl.FIXED, 0, 0, 0); | |
| 54 glErrorShouldBe(gl, gl.INVALID_ENUM, | |
| 55 "vertexAttribPointer should not support FIXED"); | |
| 56 | |
| 57 function checkVertexAttribPointer( | |
| 58 gl, err, reason, size, type, normalize, stride, offset) { | |
| 59 gl.vertexAttribPointer(0, size, type, normalize, stride, offset); | |
| 60 glErrorShouldBe(gl, err, | |
| 61 "gl.vertexAttribPointer(0, " + size + | |
| 62 ", gl." + wtu.glEnumToString(gl, type) + | |
| 63 ", " + normalize + | |
| 64 ", " + stride + | |
| 65 ", " + offset + | |
| 66 ") should " + (err == gl.NO_ERROR ? "succeed " : "fail ") + reason); | |
| 67 } | |
| 68 | |
| 69 var types = [ | |
| 70 { type:gl.BYTE, bytesPerComponent: 1 }, | |
| 71 { type:gl.UNSIGNED_BYTE, bytesPerComponent: 1 }, | |
| 72 { type:gl.SHORT, bytesPerComponent: 2 }, | |
| 73 { type:gl.UNSIGNED_SHORT, bytesPerComponent: 2 }, | |
| 74 { type:gl.FLOAT, bytesPerComponent: 4 }, | |
| 75 ]; | |
| 76 | |
| 77 for (var ii = 0; ii < types.length; ++ii) { | |
| 78 var info = types[ii]; | |
| 79 debug(""); | |
| 80 for (var size = 1; size <= 4; ++size) { | |
| 81 debug(""); | |
| 82 debug("checking: " + wtu.glEnumToString(gl, info.type) + " with size " + s
ize); | |
| 83 var bytesPerElement = size * info.bytesPerComponent; | |
| 84 var offsetSet; | |
| 85 if (info.bytesPerComponent > 1) | |
| 86 offsetSet = [0, info.bytesPerComponent - 1]; | |
| 87 else | |
| 88 offsetSet = [0]; | |
| 89 for (var jj = 0; jj < offsetSet.length; ++jj) { | |
| 90 var offset = offsetSet[jj]; | |
| 91 var strideSet; | |
| 92 if (bytesPerElement > 1) | |
| 93 strideSet = [0, bytesPerElement - 1, bytesPerElement]; | |
| 94 else | |
| 95 strideSet = [0, bytesPerElement]; | |
| 96 for (var kk = 0; kk < strideSet.length; ++kk) { | |
| 97 var stride = strideSet[kk]; | |
| 98 var err = gl.NO_ERROR; | |
| 99 var reason = "" | |
| 100 if (offset != 0) { | |
| 101 reason = "because offset is bad"; | |
| 102 err = gl.INVALID_OPERATION; | |
| 103 } | |
| 104 if (stride % info.bytesPerComponent != 0) { | |
| 105 reason = "because stride is bad"; | |
| 106 err = gl.INVALID_OPERATION; | |
| 107 } | |
| 108 checkVertexAttribPointer( | |
| 109 gl, err, reason, size, info.type, false, stride, offset); | |
| 110 } | |
| 111 var stride = Math.floor(255 / info.bytesPerComponent) * info.bytesPerCom
ponent; | |
| 112 | |
| 113 if (offset == 0) { | |
| 114 checkVertexAttribPointer( | |
| 115 gl, gl.NO_ERROR, "at stride limit", | |
| 116 size, info.type, false, stride, offset); | |
| 117 checkVertexAttribPointer( | |
| 118 gl, gl.INVALID_VALUE, "over stride limit", | |
| 119 size, info.type, false, | |
| 120 stride + info.bytesPerComponent, offset); | |
| 121 } | |
| 122 } | |
| 123 } | |
| 124 } | |
| 125 } | |
| 126 | |
| 127 debug(""); | |
| 128 | |
| 129 </script> | |
| 130 | |
| 131 <script> | |
| 132 </script> | |
| 133 | |
| 134 </body> | |
| 135 </html> | |
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Chromium Code Reviews
Issue 1601093008:
Remove duplicated WebGL layout tests. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master