2010-06-04 12:03:40 -07:00
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<!--
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Copyright (c) 2009 The Chromium Authors. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the following disclaimer
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in the documentation and/or other materials provided with the
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distribution.
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* Neither the name of Google Inc. nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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-->
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<html>
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<head>
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<link rel="stylesheet" href="../resources/js-test-style.css"/>
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<script src="../resources/js-test-pre.js"></script>
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<script src="resources/webgl-test.js"></script>
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</head>
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<body>
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<div id="description"></div>
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<div id="console"></div>
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2010-07-16 07:30:32 -07:00
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<script>
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description("Tests that index validation verifies the correct number of indices");
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var gl = create3DContext();
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var program = loadStandardProgram(gl);
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// 3 vertices => 1 triangle, interleaved data
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var dataComplete = new Float32Array([0, 0, 0, 1,
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0, 0, 1,
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1, 0, 0, 1,
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0, 0, 1,
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1, 1, 1, 1,
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0, 0, 1]);
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var dataIncomplete = new Float32Array([0, 0, 0, 1,
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0, 0, 1,
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1, 0, 0, 1,
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0, 0, 1,
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1, 1, 1, 1]);
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var indices = new Uint16Array([0, 1, 2]);
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debug("Testing with valid indices");
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var bufferComplete = gl.createBuffer();
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gl.bindBuffer(gl.ARRAY_BUFFER, bufferComplete);
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gl.bufferData(gl.ARRAY_BUFFER, dataComplete, gl.STATIC_DRAW);
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var elements = gl.createBuffer();
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gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, elements);
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gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, indices, gl.STATIC_DRAW);
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gl.useProgram(program);
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var vertexLoc = gl.getAttribLocation(program, "a_vertex");
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var normalLoc = gl.getAttribLocation(program, "a_normal");
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gl.vertexAttribPointer(vertexLoc, 4, gl.FLOAT, false, 7 * gl.sizeInBytes(gl.FLOAT), 0);
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gl.enableVertexAttribArray(vertexLoc);
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gl.vertexAttribPointer(normalLoc, 3, gl.FLOAT, false, 7 * gl.sizeInBytes(gl.FLOAT), 4 * gl.sizeInBytes(gl.FLOAT));
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gl.enableVertexAttribArray(normalLoc);
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shouldBe('gl.checkFramebufferStatus(gl.FRAMEBUFFER)', 'gl.FRAMEBUFFER_COMPLETE');
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shouldBe('gl.getError()', '0');
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shouldBeUndefined('gl.drawElements(gl.TRIANGLES, 3, gl.UNSIGNED_SHORT, 0)');
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shouldBe('gl.getError()', '0');
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debug("Testing with out-of-range indices");
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var bufferIncomplete = gl.createBuffer();
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gl.bindBuffer(gl.ARRAY_BUFFER, bufferIncomplete);
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gl.bufferData(gl.ARRAY_BUFFER, dataIncomplete, gl.STATIC_DRAW);
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gl.vertexAttribPointer(vertexLoc, 4, gl.FLOAT, false, 7 * gl.sizeInBytes(gl.FLOAT), 0);
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gl.enableVertexAttribArray(vertexLoc);
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gl.disableVertexAttribArray(normalLoc);
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debug("Enable vertices, valid");
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shouldBe('gl.getError()', '0');
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shouldBeUndefined('gl.drawElements(gl.TRIANGLES, 3, gl.UNSIGNED_SHORT, 0)');
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shouldBe('gl.getError()', '0');
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debug("Enable normals, out-of-range");
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gl.vertexAttribPointer(normalLoc, 3, gl.FLOAT, false, 7 * gl.sizeInBytes(gl.FLOAT), 4 * gl.sizeInBytes(gl.FLOAT));
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gl.enableVertexAttribArray(normalLoc);
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shouldBe('gl.getError()', '0');
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shouldBeUndefined('gl.drawElements(gl.TRIANGLES, 3, gl.UNSIGNED_SHORT, 0)');
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shouldBe('gl.getError()', 'gl.INVALID_OPERATION');
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debug("Test with enabled attribute that does not belong to current program");
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gl.disableVertexAttribArray(normalLoc);
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var extraLoc = Math.max(vertexLoc, normalLoc) + 1;
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gl.enableVertexAttribArray(extraLoc);
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debug("Enable an extra attribute with null");
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shouldBe('gl.getError()', '0');
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shouldBeUndefined('gl.drawElements(gl.TRIANGLES, 3, gl.UNSIGNED_SHORT, 0)');
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shouldBe('gl.getError()', 'gl.INVALID_OPERATION');
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debug("Enable an extra attribute with insufficient data buffer");
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gl.vertexAttribPointer(extraLoc, 3, gl.FLOAT, false, 7 * gl.sizeInBytes(gl.FLOAT), 4 * gl.sizeInBytes(gl.FLOAT));
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shouldBe('gl.getError()', '0');
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shouldBeUndefined('gl.drawElements(gl.TRIANGLES, 3, gl.UNSIGNED_SHORT, 0)');
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shouldBe('gl.getError()', '0');
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successfullyParsed = true;
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</script>
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2010-06-04 12:03:40 -07:00
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<script src="../resources/js-test-post.js"></script>
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</body>
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</html>
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