Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(6)

Issues Search
    My Issues | Starred     Open | Closed | All

Unified Diff: third_party/webgl/sdk/tests/conformance/glsl/variables/gl-pointcoord.html

Issue 10399113: Roll webgl conformance tests to r17874: part 2, adding r17874 (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/
Patch Set: Created 8 years, 7 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 | « third_party/webgl/sdk/tests/conformance/glsl/variables/gl-frontfacing.html ('k') | third_party/webgl/sdk/tests/conformance/limits/00_test_list.txt » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: third_party/webgl/sdk/tests/conformance/glsl/variables/gl-pointcoord.html
===================================================================
--- third_party/webgl/sdk/tests/conformance/glsl/variables/gl-pointcoord.html (revision 0)
+++ third_party/webgl/sdk/tests/conformance/glsl/variables/gl-pointcoord.html (revision 0)
@@ -0,0 +1,163 @@
+<!--
+
+/*
+** 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">
+ <title>gl-pointcoord Test</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>
+<canvas id="example" width="256" height="256">
+</canvas>
+<div id="description"></div>
+<div id="console"></div>
+ <script id="vshader" type="x-shader/x-vertex">
+ attribute vec4 vPosition;
+ uniform float uPointSize;
+ void main()
+ {
+ gl_PointSize = uPointSize;
+ gl_Position = vPosition;
+ }
+ </script>
+
+ <script id="fshader" type="x-shader/x-fragment">
+ precision mediump float;
+ void main()
+ {
+ gl_FragColor = vec4(
+ gl_PointCoord.x,
+ gl_PointCoord.y,
+ 0,
+ 1);
+ }
+ </script>
+
+ <script>
+ if (window.initNonKhronosFramework) {
+ window.initNonKhronosFramework(false);
+ }
+
+ description("Checks gl_PointCoord and gl_PointSize");
+ debug("");
+
+ // NOTE: I'm not 100% confident in this test. I think it is correct.
+
+ wtu = WebGLTestUtils;
+ var gl = initWebGL("example");
+ shouldBeNonNull("gl");
+ var program = setupProgram(gl, "vshader", "fshader", [ "vPosition"]);
+ shouldBe("gl.getError()", "gl.NO_ERROR");
+
+ var canvas = gl.canvas;
+ var width = canvas.width;
+ var height = canvas.height;
+ shouldBe("width", "height");
+
+ var maxPointSize = gl.getParameter(gl.ALIASED_POINT_SIZE_RANGE)[1];
+ shouldBeTrue("maxPointSize >= 1");
+ shouldBeTrue("maxPointSize % 1 == 0");
+
+ maxPointSize = Math.min(maxPointSize, 64);
+ var pointWidth = maxPointSize / width;
+ var pointStep = Math.floor(maxPointSize / 4);
+ var pointStep = Math.max(1, pointStep);
+
+ var pointSizeLoc = gl.getUniformLocation(program, "uPointSize");
+ gl.uniform1f(pointSizeLoc, maxPointSize);
+
+ var pixelOffset = (maxPointSize % 2) ? (1 / width) : 0;
+ var vertexObject = gl.createBuffer();
+ gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject);
+ gl.bufferData(
+ gl.ARRAY_BUFFER,
+ new Float32Array(
+ [-0.5 + pixelOffset, -0.5 + pixelOffset,
+ 0.5 + pixelOffset, -0.5 + pixelOffset,
+ -0.5 + pixelOffset, 0.5 + pixelOffset,
+ 0.5 + pixelOffset, 0.5 + pixelOffset]),
+ gl.STATIC_DRAW);
+ gl.enableVertexAttribArray(0);
+ gl.vertexAttribPointer(0, 2, gl.FLOAT, false, 0, 0);
+
+ gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
+
+ gl.drawArrays(gl.POINTS, 0, 4);
+ shouldBe("gl.getError()", "gl.NO_ERROR");
+
+ function s2p(s) {
+ return (s + 1.0) * 0.5 * width;
+ }
+
+ //function print(x, y) {
+ // var b = new Uint8Array(4);
+ // gl.readPixels(x, y, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, b);
+ // debug("" + x + "," + y + ": " + b[0] + "," + b[1] + "," + b[2]);
+ //}
+ //
+ //for (var ii = 0; ii < 100; ++ii) {
+ // print(ii, ii);
+ //}
+
+ for (var py = 0; py < 2; ++py) {
+ for (var px = 0; px < 2; ++px) {
+ debug("");
+ var pointX = -0.5 + px + pixelOffset;
+ var pointY = -0.5 + py + pixelOffset;
+ for (var yy = 0; yy < maxPointSize; yy += pointStep) {
+ for (var xx = 0; xx < maxPointSize; xx += pointStep) {
+ // formula for s and t from OpenGL ES 2.0 spec section 3.3
+ var xw = s2p(pointX);
+ var yw = s2p(pointY);
+ //debug("xw: " + xw + " yw: " + yw);
+ var u = xx / maxPointSize * 2 - 1;
+ var v = yy / maxPointSize * 2 - 1;
+ var xf = Math.floor(s2p(pointX + u * pointWidth));
+ var yf = Math.floor(s2p(pointY + v * pointWidth));
+ //debug("xf: " + xf + " yf: " + yf);
+ var s = 0.5 + (xf + 0.5 - xw) / maxPointSize;
+ var t = 0.5 + (yf + 0.5 - yw) / maxPointSize;
+ //debug("s: " + s + " t: " + t);
+ var color = [Math.floor(s * 255), Math.floor((1 - t) * 255), 0];
+ var msg = "pixel " + xf + "," + yf + " should be " + color;
+ wtu.checkCanvasRect(gl, xf, yf, 1, 1, color, msg, 4);
+ }
+ }
+ }
+ }
+
+ successfullyParsed = true;
+ </script>
+ <script src="../../../resources/js-test-post.js"></script>
+
+</body>
+</html>
Property changes on: third_party/webgl/sdk/tests/conformance/glsl/variables/gl-pointcoord.html
___________________________________________________________________
Added: svn:eol-style
+ LF
« no previous file with comments | « third_party/webgl/sdk/tests/conformance/glsl/variables/gl-frontfacing.html ('k') | third_party/webgl/sdk/tests/conformance/limits/00_test_list.txt » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698