1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/canvas/test/webgl-conformance/conformance/glsl/samplers/glsl-function-texture2dproj.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,117 @@
1.4 +<!--
1.5 +Copyright (c) 2011 The Chromium Authors. All rights reserved.
1.6 +Use of this source code is governed by a BSD-style license that can be
1.7 +found in the LICENSE file.
1.8 + -->
1.9 +<!DOCTYPE html>
1.10 +<html>
1.11 +<head>
1.12 +<meta charset="utf-8">
1.13 +<title>WebGL texture2D GLSL conformance test.</title>
1.14 +<link rel="stylesheet" href="../../../resources/js-test-style.css"/>
1.15 +<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
1.16 +<script src="../../../resources/js-test-pre.js"></script>
1.17 +<script src="../../resources/webgl-test.js"> </script>
1.18 +<script src="../../resources/webgl-test-utils.js"> </script>
1.19 +</head>
1.20 +<body>
1.21 +<canvas id="example" width="32" height="32"></canvas>
1.22 +<div id="description"></div>
1.23 +<div id="console"></div>
1.24 +<script id="vshader0" type="x-shader/x-vertex">
1.25 +attribute vec4 vPosition;
1.26 +attribute vec2 texCoord0;
1.27 +varying vec2 texCoord;
1.28 +void main() {
1.29 + gl_Position = vPosition;
1.30 + texCoord = texCoord0;
1.31 +}
1.32 +</script>
1.33 +<script id="fshader0" type="x-shader/x-vertex">
1.34 +precision mediump float;
1.35 +uniform sampler2D tex;
1.36 +uniform float divisor;
1.37 +varying vec2 texCoord;
1.38 +void main() {
1.39 + gl_FragData[0] = texture2DProj(tex, vec3(texCoord, divisor));
1.40 +}
1.41 +</script>
1.42 +<script id="vshader1" type="x-shader/x-vertex">
1.43 +attribute vec4 vPosition;
1.44 +attribute vec2 texCoord0;
1.45 +varying vec2 texCoord;
1.46 +void main() {
1.47 + gl_Position = vPosition;
1.48 + texCoord = texCoord0;
1.49 +}
1.50 +</script>
1.51 +<script id="fshader1" type="x-shader/x-vertex">
1.52 +precision mediump float;
1.53 +uniform sampler2D tex;
1.54 +uniform float divisor;
1.55 +varying vec2 texCoord;
1.56 +void main() {
1.57 + gl_FragData[0] = texture2DProj(tex, vec4(texCoord, 123.0, divisor));
1.58 +}
1.59 +</script>
1.60 +<script>
1.61 +description("tests GLSL texture2DProj function with");
1.62 +
1.63 +var wtu = WebGLTestUtils;
1.64 +var gl = wtu.create3DContext("example", {antialias: false});
1.65 +
1.66 +wtu.setupUnitQuad(gl, 0, 1);
1.67 +var tex = gl.createTexture();
1.68 +gl.bindTexture(gl.TEXTURE_2D, tex);
1.69 +gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
1.70 +gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
1.71 +gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT);
1.72 +gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT);
1.73 +
1.74 +var c = document.createElement("canvas");
1.75 +c.width = 16;
1.76 +c.height = 16;
1.77 +var ctx = c.getContext("2d");
1.78 +ctx.fillStyle = "rgb(0,255,0)";
1.79 +ctx.fillRect(0, 0, 16, 16);
1.80 +ctx.fillStyle = "rgb(0,0,255)";
1.81 +ctx.fillRect(0, 0, 8, 8);
1.82 +ctx.fillRect(8, 8, 8, 8);
1.83 +
1.84 +gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, c);
1.85 +
1.86 +for (var ss = 0; ss < 2; ++ss) {
1.87 + debug("");
1.88 + debug(ss ? "testing vec4 version" : "testing vec3 version");
1.89 + var program = wtu.setupProgram(
1.90 + gl, ['vshader' + ss, 'fshader' + ss],
1.91 + ['vPosition', 'texCoord0'], [0, 1]);
1.92 + gl.useProgram(program);
1.93 + var loc = gl.getUniformLocation(program, "divisor");
1.94 +
1.95 + for (var ii = 0; ii < 3; ++ii) {
1.96 + var denominator = Math.pow(2, ii);
1.97 + gl.uniform1f(loc, 1 / denominator);
1.98 + wtu.drawQuad(gl);
1.99 + var size = 16 / denominator;
1.100 + for (var yy = 0; yy < 32; yy += size) {
1.101 + for (var xx = 0; xx < 32; xx += size) {
1.102 + var odd = (xx / size + yy / size) % 2;
1.103 + var color = odd ? [0, 255, 0, 255] : [0, 0, 255, 255];
1.104 + var msg = "" + xx + ", " + yy + ", " + size + ", " + size + " should be " + (odd ? "green" : "blue");
1.105 + wtu.checkCanvasRect(gl, xx, yy, size, size, color, msg);
1.106 + }
1.107 + }
1.108 + }
1.109 +}
1.110 +glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors.");
1.111 +
1.112 +successfullyParsed = true;
1.113 +
1.114 +</script>
1.115 +<script>finishTest();</script>
1.116 +
1.117 +</body>
1.118 +</html>
1.119 +
1.120 +
