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Unified Diff: conformance/textures/tex-image-and-sub-image-2d-with-array-buffer-view.html

Issue 8342021: Add webgl conformance tests r15841. (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/webgl/sdk/tests/
Patch Set: Created 9 years, 2 months ago
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Index: conformance/textures/tex-image-and-sub-image-2d-with-array-buffer-view.html
===================================================================
--- conformance/textures/tex-image-and-sub-image-2d-with-array-buffer-view.html (revision 0)
+++ conformance/textures/tex-image-and-sub-image-2d-with-array-buffer-view.html (revision 0)
@@ -0,0 +1,194 @@
+<!--
+Copyright (c) 2011 The Chromium Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file.
+ -->
+<!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="example" width="1px" height="2px"></canvas>
+<div id="description"></div>
+<div id="console"></div>
+<script>
+description('Verifies texImage2D and texSubImage2D code paths taking ArrayBufferView');
+
+var wtu = WebGLTestUtils;
+var gl = null;
+var textureLoc = null;
+var successfullyParsed = false;
+
+// These two declarations need to be global for "shouldBe" to see them
+var buf = null;
+var idx = 0;
+var pixel = [0, 0, 0, 1];
+var correctColor = null;
+
+function generateRGBAData(type, unpackAlignment)
+{
+ var sourceData = [ 255, 0, 0, 255,
+ 0, 255, 0, 0 ];
+ switch (type) {
+ case gl.UNSIGNED_BYTE: {
+ var rowWidth = Math.max(unpackAlignment, 4);
+ var data = new Uint8Array(2 * rowWidth);
+ for (var y = 0; y < 2; ++y) {
+ var index = y * rowWidth;
+ for (var element = 0; element < 4; ++element) {
+ data[index + element] = sourceData[4 * y + element];
+ }
+ }
+ return data;
+ }
+ case gl.UNSIGNED_SHORT_4_4_4_4: {
+ var rowWidth = Math.max(unpackAlignment, 2) / 2;
+ var data = new Uint16Array(2 * rowWidth);
+ for (var y = 0; y < 2; ++y) {
+ var index = y * rowWidth;
+ data[index] = (((sourceData[4 * y] & 0xF0) << 8)
+ | ((sourceData[4 * y + 1] & 0xF0) << 4)
+ | (sourceData[4 * y + 2] & 0xF0)
+ | (sourceData[4 * y + 3] >> 4));
+ }
+ return data;
+ }
+ case gl.UNSIGNED_SHORT_5_5_5_1: {
+ var rowWidth = Math.max(unpackAlignment, 2) / 2;
+ var data = new Uint16Array(2 * rowWidth);
+ for (var y = 0; y < 2; ++y) {
+ var index = y * rowWidth;
+ data[index] = (((sourceData[4 * y] & 0xF8) << 8)
+ | ((sourceData[4 * y + 1] & 0xF8) << 3)
+ | ((sourceData[4 * y + 2] & 0xF8) >> 2)
+ | (sourceData[4 * y + 3] >> 7));
+ }
+ return data;
+ }
+ }
+}
+
+function typeToString(type)
+{
+ switch (type) {
+ case gl.UNSIGNED_BYTE: return 'UNSIGNED_BYTE';
+ case gl.UNSIGNED_SHORT_5_5_5_1: return 'UNSIGNED_SHORT_5_5_5_1';
+ case gl.UNSIGNED_SHORT_4_4_4_4: return 'UNSIGNED_SHORT_4_4_4_4';
+ }
+ return 'Unknown type ' + type;
+}
+
+function runOneIteration(useTexSubImage2D, type, unpackAlignment, flipY, premultiplyAlpha, topColor, bottomColor)
+{
+ debug('Testing ' + (useTexSubImage2D ? 'texSubImage2D' : 'texImage2D') +
+ ' with type=' + typeToString(type) +
+ ', unpackAlignment=' + unpackAlignment +
+ ', flipY=' + flipY + ', premultiplyAlpha=' + premultiplyAlpha);
+ gl.colorMask(true, true, true, true);
+ gl.clearColor(0, 0, 0, 1.0);
+ gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
+ // Enable writes to the RGB channels
+ gl.colorMask(true, true, true, false);
+ var texture = gl.createTexture();
+ // Bind the texture to texture unit 0
+ gl.bindTexture(gl.TEXTURE_2D, texture);
+ // Set up texture parameters
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
+ // Set up pixel store parameters
+ gl.pixelStorei(gl.UNPACK_ALIGNMENT, unpackAlignment);
+ gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, flipY);
+ gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, premultiplyAlpha);
+ // Generate the data
+ var data = generateRGBAData(type, unpackAlignment);
+ if (gl.getError() != gl.NO_ERROR)
+ testFailed("GL error before texture upload");
+ // Upload the image into the texture
+ if (useTexSubImage2D) {
+ // Initialize the texture to black first
+ gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1, 2, 0,
+ gl.RGBA, type, null);
+ if (gl.getError() != gl.NO_ERROR)
+ testFailed("GL error after texImage2D(null)");
+ gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, 1, 2, gl.RGBA, type, data);
+ if (gl.getError() != gl.NO_ERROR)
+ testFailed("GL error after texSubImage2D");
+ } else {
+ gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1, 2, 0, gl.RGBA, type, data);
+ if (gl.getError() != gl.NO_ERROR)
+ testFailed("GL error after texImage2D");
+ }
+
+ // Point the uniform sampler to texture unit 0
+ gl.uniform1i(textureLoc, 0);
+ // Draw the triangles
+ wtu.drawQuad(gl, [0, 0, 0, 255]);
+
+ // Read back the rendering results
+ buf = new Uint8Array(1 * 2 * 4);
+ gl.readPixels(0, 0, 1, 2, gl.RGBA, gl.UNSIGNED_BYTE, buf);
+ // Check the top pixel and bottom pixel and make sure they have
+ // the right color.
+ debug("Checking bottom pixel");
+ wtu.checkCanvasRect(gl, 0, 0, 1, 1, bottomColor, "shouldBe " + bottomColor);
+ debug("Checking top pixel");
+ wtu.checkCanvasRect(gl, 0, 1, 1, 1, topColor, "shouldBe " + topColor);
+}
+
+function runTest()
+{
+ var red = [255, 0, 0, 255];
+ var green = [0, 255, 0, 255];
+ var redPremultiplyAlpha = [255, 0, 0, 255];
+ var greenPremultiplyAlpha = [0, 0, 0, 255];
+
+ var types = [ gl.UNSIGNED_BYTE, gl.UNSIGNED_SHORT_5_5_5_1, gl.UNSIGNED_SHORT_4_4_4_4 ];
+ var unpackAlignments = [ 1, 2, 4, 8 ];
+
+ for (var i = 0; i < types.length; ++i) {
+ var type = types[i];
+ for (var j = 0; j < unpackAlignments.length; ++j) {
+ var unpackAlignment = unpackAlignments[j];
+ runOneIteration(false, type, unpackAlignment, true, false,
+ red, green);
+ runOneIteration(false, type, unpackAlignment, false, false,
+ green, red);
+ runOneIteration(false, type, unpackAlignment, true, true,
+ redPremultiplyAlpha, greenPremultiplyAlpha);
+ runOneIteration(false, type, unpackAlignment, false, true,
+ greenPremultiplyAlpha, redPremultiplyAlpha);
+ runOneIteration(true, type, unpackAlignment, true, false,
+ red, green);
+ runOneIteration(true, type, unpackAlignment, false, false,
+ green, red);
+ runOneIteration(true, type, unpackAlignment, true, true,
+ redPremultiplyAlpha, greenPremultiplyAlpha);
+ runOneIteration(true, type, unpackAlignment, false, true,
+ greenPremultiplyAlpha, redPremultiplyAlpha);
+ }
+ }
+
+}
+
+var canvas = document.getElementById("example");
+gl = wtu.create3DContext(canvas);
+var program = wtu.setupTexturedQuad(gl);
+gl.disable(gl.BLEND);
+
+gl.clearColor(0,0,0,1);
+gl.clearDepth(1);
+
+textureLoc = gl.getUniformLocation(program, "tex");
+
+runTest();
+glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors");
+successfullyParsed = true;
+</script>
+<script src="../../resources/js-test-post.js"></script>
+</body>
+</html>
Property changes on: conformance/textures/tex-image-and-sub-image-2d-with-array-buffer-view.html
___________________________________________________________________
Added: svn:eol-style
+ LF
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