1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/canvas/test/webgl-conformance/conformance/buffers/index-validation.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,141 @@
1.4 +<!--
1.5 +Copyright (c) 2011 The Chromium Authors. All rights reserved.
1.6 +
1.7 +Redistribution and use in source and binary forms, with or without
1.8 +modification, are permitted provided that the following conditions are
1.9 +met:
1.10 +
1.11 + * Redistributions of source code must retain the above copyright
1.12 +notice, this list of conditions and the following disclaimer.
1.13 + * Redistributions in binary form must reproduce the above
1.14 +copyright notice, this list of conditions and the following disclaimer
1.15 +in the documentation and/or other materials provided with the
1.16 +distribution.
1.17 + * Neither the name of Google Inc. nor the names of its
1.18 +contributors may be used to endorse or promote products derived from
1.19 +this software without specific prior written permission.
1.20 +
1.21 +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1.22 +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1.23 +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1.24 +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
1.25 +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
1.26 +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
1.27 +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
1.28 +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
1.29 +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
1.30 +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
1.31 +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.32 +-->
1.33 +<!DOCTYPE html>
1.34 +<html>
1.35 +<head>
1.36 +<meta charset="utf-8">
1.37 +<link rel="stylesheet" href="../../resources/js-test-style.css"/>
1.38 +<script src="../../resources/js-test-pre.js"></script>
1.39 +<script src="../resources/webgl-test.js"></script>
1.40 +</head>
1.41 +<body>
1.42 +<div id="description"></div>
1.43 +<div id="console"></div>
1.44 +
1.45 +<script>
1.46 +description("Tests that index validation verifies the correct number of indices");
1.47 +
1.48 +function sizeInBytes(type) {
1.49 + switch (type) {
1.50 + case gl.BYTE:
1.51 + case gl.UNSIGNED_BYTE:
1.52 + return 1;
1.53 + case gl.SHORT:
1.54 + case gl.UNSIGNED_SHORT:
1.55 + return 2;
1.56 + case gl.INT:
1.57 + case gl.UNSIGNED_INT:
1.58 + case gl.FLOAT:
1.59 + return 4;
1.60 + default:
1.61 + throw "unknown type";
1.62 + }
1.63 +}
1.64 +
1.65 +var gl = create3DContext();
1.66 +var program = loadStandardProgram(gl);
1.67 +
1.68 +// 3 vertices => 1 triangle, interleaved data
1.69 +var dataComplete = new Float32Array([0, 0, 0, 1,
1.70 + 0, 0, 1,
1.71 + 1, 0, 0, 1,
1.72 + 0, 0, 1,
1.73 + 1, 1, 1, 1,
1.74 + 0, 0, 1]);
1.75 +var dataIncomplete = new Float32Array([0, 0, 0, 1,
1.76 + 0, 0, 1,
1.77 + 1, 0, 0, 1,
1.78 + 0, 0, 1,
1.79 + 1, 1, 1, 1]);
1.80 +var indices = new Uint16Array([0, 1, 2]);
1.81 +
1.82 +debug("Testing with valid indices");
1.83 +
1.84 +var bufferComplete = gl.createBuffer();
1.85 +gl.bindBuffer(gl.ARRAY_BUFFER, bufferComplete);
1.86 +gl.bufferData(gl.ARRAY_BUFFER, dataComplete, gl.STATIC_DRAW);
1.87 +var elements = gl.createBuffer();
1.88 +gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, elements);
1.89 +gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, indices, gl.STATIC_DRAW);
1.90 +gl.useProgram(program);
1.91 +var vertexLoc = gl.getAttribLocation(program, "a_vertex");
1.92 +var normalLoc = gl.getAttribLocation(program, "a_normal");
1.93 +gl.vertexAttribPointer(vertexLoc, 4, gl.FLOAT, false, 7 * sizeInBytes(gl.FLOAT), 0);
1.94 +gl.enableVertexAttribArray(vertexLoc);
1.95 +gl.vertexAttribPointer(normalLoc, 3, gl.FLOAT, false, 7 * sizeInBytes(gl.FLOAT), 4 * sizeInBytes(gl.FLOAT));
1.96 +gl.enableVertexAttribArray(normalLoc);
1.97 +shouldBe('gl.checkFramebufferStatus(gl.FRAMEBUFFER)', 'gl.FRAMEBUFFER_COMPLETE');
1.98 +glErrorShouldBe(gl, gl.NO_ERROR);
1.99 +shouldBeUndefined('gl.drawElements(gl.TRIANGLES, 3, gl.UNSIGNED_SHORT, 0)');
1.100 +glErrorShouldBe(gl, gl.NO_ERROR);
1.101 +
1.102 +debug("Testing with out-of-range indices");
1.103 +
1.104 +var bufferIncomplete = gl.createBuffer();
1.105 +gl.bindBuffer(gl.ARRAY_BUFFER, bufferIncomplete);
1.106 +gl.bufferData(gl.ARRAY_BUFFER, dataIncomplete, gl.STATIC_DRAW);
1.107 +gl.vertexAttribPointer(vertexLoc, 4, gl.FLOAT, false, 7 * sizeInBytes(gl.FLOAT), 0);
1.108 +gl.enableVertexAttribArray(vertexLoc);
1.109 +gl.disableVertexAttribArray(normalLoc);
1.110 +debug("Enable vertices, valid");
1.111 +glErrorShouldBe(gl, gl.NO_ERROR);
1.112 +shouldBeUndefined('gl.drawElements(gl.TRIANGLES, 3, gl.UNSIGNED_SHORT, 0)');
1.113 +glErrorShouldBe(gl, gl.NO_ERROR);
1.114 +debug("Enable normals, out-of-range");
1.115 +gl.vertexAttribPointer(normalLoc, 3, gl.FLOAT, false, 7 * sizeInBytes(gl.FLOAT), 4 * sizeInBytes(gl.FLOAT));
1.116 +gl.enableVertexAttribArray(normalLoc);
1.117 +glErrorShouldBe(gl, gl.NO_ERROR);
1.118 +shouldBeUndefined('gl.drawElements(gl.TRIANGLES, 3, gl.UNSIGNED_SHORT, 0)');
1.119 +glErrorShouldBe(gl, gl.INVALID_OPERATION);
1.120 +
1.121 +debug("Test with enabled attribute that does not belong to current program");
1.122 +
1.123 +gl.disableVertexAttribArray(normalLoc);
1.124 +var extraLoc = Math.max(vertexLoc, normalLoc) + 1;
1.125 +gl.enableVertexAttribArray(extraLoc);
1.126 +debug("Enable an extra attribute with null");
1.127 +glErrorShouldBe(gl, gl.NO_ERROR);
1.128 +shouldBeUndefined('gl.drawElements(gl.TRIANGLES, 3, gl.UNSIGNED_SHORT, 0)');
1.129 +glErrorShouldBe(gl, gl.INVALID_OPERATION);
1.130 +debug("Enable an extra attribute with insufficient data buffer");
1.131 +gl.vertexAttribPointer(extraLoc, 3, gl.FLOAT, false, 7 * sizeInBytes(gl.FLOAT), 4 * sizeInBytes(gl.FLOAT));
1.132 +glErrorShouldBe(gl, gl.NO_ERROR);
1.133 +shouldBeUndefined('gl.drawElements(gl.TRIANGLES, 3, gl.UNSIGNED_SHORT, 0)');
1.134 +debug("Pass large negative index to vertexAttribPointer");
1.135 +gl.vertexAttribPointer(normalLoc, 3, gl.FLOAT, false, 7 * sizeInBytes(gl.FLOAT), -2000000000 * sizeInBytes(gl.FLOAT));
1.136 +glErrorShouldBe(gl, gl.INVALID_VALUE);
1.137 +shouldBeUndefined('gl.drawElements(gl.TRIANGLES, 3, gl.UNSIGNED_SHORT, 0)');
1.138 +
1.139 +successfullyParsed = true;
1.140 +</script>
1.141 +
1.142 +<script>finishTest();</script>
1.143 +</body>
1.144 +</html>
