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Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/texture-transparent-pixels-initialized.html')
| -rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/texture-transparent-pixels-initialized.html | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/texture-transparent-pixels-initialized.html b/dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/texture-transparent-pixels-initialized.html new file mode 100644 index 000000000..fc87f7fbc --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/texture-transparent-pixels-initialized.html @@ -0,0 +1,106 @@ +<!-- +/* +** Copyright (c) 2012 The Khronos Group Inc. +** +** Permission is hereby granted, free of charge, to any person obtaining a +** copy of this software and/or associated documentation files (the +** "Materials"), to deal in the Materials without restriction, including +** without limitation the rights to use, copy, modify, merge, publish, +** distribute, sublicense, and/or sell copies of the Materials, and to +** permit persons to whom the Materials are furnished to do so, subject to +** the following conditions: +** +** The above copyright notice and this permission notice shall be included +** in all copies or substantial portions of the Materials. +** +** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. +*/ +--> +<!DOCTYPE html> +<html> +<head> +<meta charset="utf-8"> +<link rel="stylesheet" href="../../../resources/js-test-style.css"/> +<script src="../../../js/js-test-pre.js"></script> +<script src="../../../js/webgl-test-utils.js"></script> +<script> +"use strict"; +var wtu = WebGLTestUtils; +var gl = null; +var texture; +var textureLoc = null; +var successfullyParsed = false; + +function init() +{ + description('Tests there is no garbage in transparent regions of images uploaded as textures'); + + wtu = WebGLTestUtils; + gl = wtu.create3DContext("example"); + var program = wtu.setupTexturedQuad(gl); + gl.clearColor(0.5,0.5,0.5,1); + gl.clearDepth(1); + + textureLoc = gl.getUniformLocation(program, "tex"); + + // The input texture has 8 characters; take the leftmost one + var coeff = 1.0 / 8.0; + var texCoords = new Float32Array([ + coeff, 1.0, + 0.0, 1.0, + 0.0, 0.0, + coeff, 1.0, + 0.0, 0.0, + coeff, 0.0]); + + var vbo = gl.createBuffer(); + gl.bindBuffer(gl.ARRAY_BUFFER, vbo); + gl.bufferData(gl.ARRAY_BUFFER, texCoords, gl.STATIC_DRAW); + gl.enableVertexAttribArray(1); + gl.vertexAttribPointer(1, 2, gl.FLOAT, false, 0, 0); + + texture = wtu.loadTexture(gl, "../../../resources/bug-32888-texture.png", runTest); +} + +// These two declarations need to be global for "shouldBe" to see them +var buf = null; +var idx = 0; + +function runTest() +{ + gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); + gl.enable(gl.BLEND); + gl.blendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA); + // Bind the texture to texture unit 0 + gl.bindTexture(gl.TEXTURE_2D, texture); + // Point the uniform sampler to texture unit 0 + gl.uniform1i(textureLoc, 0); + // Draw the triangles + wtu.clearAndDrawUnitQuad(gl, [0, 0, 0, 255]); + + // Spot check a couple of 2x2 regions in the upper and lower left + // corners; they should be the rgb values in the texture. + var color = [0, 0, 0]; + debug("Checking lower left corner"); + wtu.checkCanvasRect(gl, 1, gl.canvas.height - 3, 2, 2, color, + "shouldBe " + color); + debug("Checking upper left corner"); + wtu.checkCanvasRect(gl, 1, 1, 2, 2, color, + "shouldBe " + color); + + finishTest(); +} +</script> +</head> +<body onload="init()"> +<canvas id="example" width="32" height="32"></canvas> +<div id="description"></div> +<div id="console"></div> +</body> +</html> |