Index: third_party/webgl/sdk/tests/conformance/renderbuffers/renderbuffer-initialization.html |
=================================================================== |
--- third_party/webgl/sdk/tests/conformance/renderbuffers/renderbuffer-initialization.html (revision 0) |
+++ third_party/webgl/sdk/tests/conformance/renderbuffers/renderbuffer-initialization.html (revision 0) |
@@ -0,0 +1,120 @@ |
+<!-- |
+ |
+/* |
+** 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="../../resources/js-test-pre.js"></script> |
+<script src="../resources/webgl-test.js"></script> |
+<script src="../resources/webgl-test-utils.js"></script> |
+</head> |
+<body> |
+<canvas id="testbed" width="400" height="400" style="width: 40px; height: 40px;"></canvas> |
+<div id="description"></div> |
+<div id="console"></div> |
+<script> |
+var wtu = WebGLTestUtils; |
+description('Verify renderbuffers are initialized to 0 before being read in WebGL'); |
+ |
+var gl = wtu.create3DContext("testbed"); |
+if (!gl) { |
+ testFailed('canvas.getContext() failed'); |
+} else { |
+ // Set the clear color to green. It should never show up. |
+ gl.clearColor(0, 1, 0, 1); |
+ |
+ runTest(gl, gl.canvas.width, gl.canvas.height, 0); |
+ runTest(gl, gl.canvas.width, gl.canvas.height, 1); |
+ runTest(gl, gl.canvas.width, gl.canvas.height, 0); |
+ runTest(gl, gl.canvas.width, gl.canvas.height, 1); |
+ |
+ // Testing buffer clearing won't change the clear values. |
+ var clearColor = gl.getParameter(gl.COLOR_CLEAR_VALUE); |
+ shouldBe("clearColor", "[0, 1, 0, 1]"); |
+ glErrorShouldBe(gl, gl.NO_ERROR, 'should be no errors'); |
+} |
+ |
+function runTest(gl, width, height, order) |
+{ |
+ wtu.checkCanvasRect(gl, 0, 0, width, height, [0,0,0,0], |
+ "internal buffers have been initialized to 0"); |
+ |
+ // fill the back buffer so we know that reading below happens from |
+ // the renderbuffer. |
+ gl.clear(gl.COLOR_BUFFER_BIT); |
+ |
+ var fbo = gl.createFramebuffer(); |
+ gl.bindFramebuffer(gl.FRAMEBUFFER, fbo); |
+ var colorbuffer = gl.createRenderbuffer(); |
+ gl.bindRenderbuffer(gl.RENDERBUFFER, colorbuffer); |
+ switch (order) { |
+ case 0: |
+ allocStorage(width, height); |
+ attachBuffer(colorbuffer); |
+ break; |
+ case 1: |
+ attachBuffer(colorbuffer); |
+ allocStorage(width, height); |
+ break; |
+ } |
+ |
+ function allocStorage(width, height) { |
+ gl.renderbufferStorage(gl.RENDERBUFFER, gl.RGBA4, width, height); |
+ glErrorShouldBe(gl, gl.NO_ERROR, 'should be no error after renderbufferStorage(internalformat = RGBA4).'); |
+ } |
+ |
+ function attachBuffer(colorbuffer) { |
+ gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, colorbuffer); |
+ } |
+ |
+ if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) != gl.FRAMEBUFFER_COMPLETE) { |
+ testFailed('Framebuffer incomplete.'); |
+ return; |
+ } |
+ |
+ wtu.checkCanvasRect(gl, 0, 0, width, height, [0,0,0,0], |
+ "user buffers have been initialized to 0"); |
+ |
+ gl.deleteFramebuffer(fbo); |
+ gl.deleteRenderbuffer(colorbuffer); |
+ |
+ // this clear should not matter we are about to resize |
+ gl.clear(gl.COLOR_BUFFER_BIT); |
+ |
+ gl.canvas.width += 1; |
+ gl.canvas.height += 1; |
+ |
+ debug(''); |
+} |
+ |
+successfullyParsed = true; |
+</script> |
+<script src="../../resources/js-test-post.js"></script> |
+</body> |
+</html> |
Property changes on: third_party/webgl/sdk/tests/conformance/renderbuffers/renderbuffer-initialization.html |
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Added: svn:eol-style |
+ LF |