1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/canvas/test/webgl-conformance/conformance/textures/texture-transparent-pixels-initialized.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,114 @@
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 +<script src="../resources/webgl-test-utils.js"></script>
1.41 +<script>
1.42 +var wtu = WebGLTestUtils;
1.43 +var gl = null;
1.44 +var textureLoc = null;
1.45 +var successfullyParsed = false;
1.46 +
1.47 +function init()
1.48 +{
1.49 + if (window.initNonKhronosFramework) {
1.50 + window.initNonKhronosFramework(true);
1.51 + }
1.52 +
1.53 + description('Tests there is no garbage in transparent regions of images uploaded as textures');
1.54 +
1.55 + wtu = WebGLTestUtils;
1.56 + gl = wtu.create3DContext("example");
1.57 + var program = wtu.setupTexturedQuad(gl);
1.58 + gl.clearColor(0.5,0.5,0.5,1);
1.59 + gl.clearDepth(1);
1.60 +
1.61 + textureLoc = gl.getUniformLocation(program, "tex");
1.62 +
1.63 + // The input texture has 8 characters; take the leftmost one
1.64 + var coeff = 1.0 / 8.0;
1.65 + var texCoords = new Float32Array([
1.66 + coeff, 1.0,
1.67 + 0.0, 1.0,
1.68 + 0.0, 0.0,
1.69 + coeff, 1.0,
1.70 + 0.0, 0.0,
1.71 + coeff, 0.0]);
1.72 +
1.73 + var vbo = gl.createBuffer();
1.74 + gl.bindBuffer(gl.ARRAY_BUFFER, vbo);
1.75 + gl.bufferData(gl.ARRAY_BUFFER, texCoords, gl.STATIC_DRAW);
1.76 + gl.enableVertexAttribArray(1);
1.77 + gl.vertexAttribPointer(1, 2, gl.FLOAT, false, 0, 0);
1.78 +
1.79 + texture = wtu.loadTexture(gl, "../resources/bug-32888-texture.png", runTest);
1.80 +}
1.81 +
1.82 +// These two declarations need to be global for "shouldBe" to see them
1.83 +var buf = null;
1.84 +var idx = 0;
1.85 +
1.86 +function runTest()
1.87 +{
1.88 + gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
1.89 + gl.enable(gl.BLEND);
1.90 + gl.blendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA);
1.91 + // Bind the texture to texture unit 0
1.92 + gl.bindTexture(gl.TEXTURE_2D, texture);
1.93 + // Point the uniform sampler to texture unit 0
1.94 + gl.uniform1i(textureLoc, 0);
1.95 + // Draw the triangles
1.96 + wtu.drawQuad(gl, [0, 0, 0, 255]);
1.97 +
1.98 + // Spot check a couple of 2x2 regions in the upper and lower left
1.99 + // corners; they should be the rgb values in the texture.
1.100 + color = [0, 0, 0];
1.101 + debug("Checking lower left corner");
1.102 + wtu.checkCanvasRect(gl, 1, gl.canvas.height - 3, 2, 2, color,
1.103 + "shouldBe " + color);
1.104 + debug("Checking upper left corner");
1.105 + wtu.checkCanvasRect(gl, 1, 1, 2, 2, color,
1.106 + "shouldBe " + color);
1.107 +
1.108 + finishTest();
1.109 +}
1.110 +</script>
1.111 +</head>
1.112 +<body onload="init()">
1.113 +<canvas id="example" width="32px" height="32px"></canvas>
1.114 +<div id="description"></div>
1.115 +<div id="console"></div>
1.116 +</body>
1.117 +</html>
