Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(711)

Issues Search
    My Issues | Starred     Open | Closed | All

Unified Diff: conformance/context/premultiplyalpha-test.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
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « conformance/context/methods.html ('k') | conformance/context/resource-sharing-test.html » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: conformance/context/premultiplyalpha-test.html
===================================================================
--- conformance/context/premultiplyalpha-test.html (revision 0)
+++ conformance/context/premultiplyalpha-test.html (revision 0)
@@ -0,0 +1,169 @@
+<!--
+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">
+<title>Test the WebGL premultipledAlpha context creation flag.</title>
+<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>
+<div id="description"></div><div id="console"></div>
+<script>
+var wtu = WebGLTestUtils;
+
+var tests = [
+ // If premultipledAlpha is true then
+ // [texture] [canvas] [dataURL]
+ // 32, 64, 128, 128 -> 64, 128, 255, 128 -> 64, 128, 255, 128
+ { creationAttributes: {},
+ sentColor: [32, 64, 128, 128],
+ expectedColor: [64, 128, 255, 128],
+ errorRange: 2,
+ imageFormat: "image/png"
+ },
+ // If premultipledAlpha is true then
+ // [texture] [canvas] [texture]
+ // 32, 64, 128, 128 -> 64, 128, 255, 128 -> 64, 128, 255, 128
+ { creationAttributes: {},
+ sentColor: [32, 64, 128, 128],
+ expectedColor: [64, 128, 255, 128],
+ errorRange: 2,
+ },
+ // If premultipledAlpha is false then
+ // [texture] [canvas] [dataURL]
+ // 255, 192, 128, 1 -> 255, 192, 128, 1 -> 255, 192, 128, 1
+ { creationAttributes: {premultipliedAlpha: false},
+ sentColor: [255, 192, 128, 1],
+ expectedColor: [255, 192, 128, 1],
+ errorRange: 0,
+ imageFormat: "image/png"
+ },
+ // If premultipledAlpha is false then
+ // [texture] [canvas] [texture]
+ // 255, 192, 128, 1 -> 255, 192, 128, 1 -> 255, 192, 128, 1
+ { creationAttributes: {premultipliedAlpha: false},
+ sentColor: [255, 192, 128, 1],
+ expectedColor: [255, 192, 128, 1],
+ errorRange: 0,
+ },
+ // If premultipledAlpha is false then
+ // [texture] [canvas] [dataURL]
+ // 255, 255, 255, 128 -> 255, 255, 255, 128 -> 128, 128, 128, 255
+ { creationAttributes: {premultipliedAlpha: false},
+ sentColor: [255, 255, 255, 128],
+ expectedColor: [128, 128, 128, 255],
+ errorRange: 2,
+ imageFormat: "image/jpeg"
+ },
+ // If premultipledAlpha is true then
+ // [texture] [canvas] [dataURL]
+ // 128, 128, 128, 128 -> 255, 255, 255, 128 -> 128, 128, 128, 255
+ { creationAttributes: {},
+ sentColor: [128, 128, 128, 128],
+ expectedColor: [128, 128, 128, 255],
+ errorRange: 2,
+ imageFormat: "image/jpeg"
+ }
+];
+
+var g_count = 0;
+var gl;
+var canvas;
+var premultipledAlpha;
+
+description("Test the WebGL premultipledAlpha context creation flag.");
+doNextTest();
+function doNextTest() {
+ if (g_count < tests.length) {
+ var test = tests[g_count++];
+ canvas = document.createElement("canvas");
+ // Need to preserve drawing buffer to load it in a callback
+ test.creationAttributes.preserveDrawingBuffer = true;
+ gl = wtu.create3DContext(canvas, test.creationAttributes);
+ var premultipliedAlpha = test.creationAttributes.premultipliedAlpha != false;
+ debug("")
+ debug("testing: premultipliedAlpha: " + premultipliedAlpha + " imageFormat: " + test.imageFormat);
+
+ shouldBe('gl.getContextAttributes().premultipledAlpha', 'premultipledAlpha');
+ shouldBeTrue('gl.getContextAttributes().preserveDrawingBuffer');
+
+ console.log(gl.getContextAttributes());
+ var program = wtu.setupTexturedQuad(gl);
+
+ glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
+ var tex = gl.createTexture();
+ wtu.fillTexture(gl, tex, 2, 2, test.sentColor, 0);
+ var loc = gl.getUniformLocation(program, "tex");
+ gl.uniform1i(loc, 0);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
+
+ wtu.drawQuad(gl);
+ glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from drawing.");
+
+ function loadTexture() {
+ var pngTex = gl.createTexture();
+ // not needed as it's the default
+ // gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false);
+ gl.pixelStorei(gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, false);
+ gl.bindTexture(gl.TEXTURE_2D, pngTex);
+ if (test.imageFormat) {
+ // create texture from image
+ gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, this);
+ } else {
+ // create texture from canvas
+ gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, canvas);
+ }
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
+ glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from creating copy.");
+ wtu.drawQuad(gl);
+ glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from 2nd drawing.");
+ wtu.checkCanvas(
+ gl, test.expectedColor,
+ "should draw with " + test.expectedColor, test.errorRange);
+
+ doNextTest();
+ }
+
+ if (test.imageFormat) {
+ // Load canvas into string using toDataURL
+ var imageUrl = canvas.toDataURL(test.imageFormat);
+ if (test.imageFormat != "image/png" &&
+ (imageUrl.indexOf("data:image/png,") == 0 ||
+ imageUrl.indexOf("data:image/png;") == 0)) {
+ debug("Image format " + test.imageFormat + " not supported; skipping");
+ setTimeout(doNextTest, 0);
+ } else {
+ // Load string into the texture
+ var input = document.createElement("img");
+ input.onload = loadTexture;
+ input.src = imageUrl;
+ }
+ } else {
+ // Load canvas into the texture asynchronously (to prevent unbounded stack consumption)
+ setTimeout(loadTexture, 0);
+ }
+ } else {
+ successfullyParsed = true;
+ finishTest();
+ }
+}
+
+</script>
+
+</body>
+</html>
+
+
Property changes on: conformance/context/premultiplyalpha-test.html
___________________________________________________________________
Added: svn:eol-style
+ LF
« no previous file with comments | « conformance/context/methods.html ('k') | conformance/context/resource-sharing-test.html » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698