third_party/webgl/sdk/tests/conformance/glsl/samplers/glsl-function-texture2dproj.html - Issue 9373009: Check in webgl conformance tests r16844 from khronos.

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Issue 9373009: Check in webgl conformance tests r16844 from khronos. (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/

Patch Set: Created 8 years, 10 months ago

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	1 <!--

	2 Copyright (c) 2011 The Chromium Authors. All rights reserved.

	3 Use of this source code is governed by a BSD-style license that can be

	4 found in the LICENSE file.

	5 -->

	6 <!DOCTYPE html>

	7 <html>

	8 <head>

	9 <meta charset="utf-8">

	10 <title>WebGL texture2D GLSL conformance test.</title>

	11 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>

	12 <script src="../../../resources/js-test-pre.js"></script>

	13 <script src="../../resources/webgl-test.js"> </script>

	14 <script src="../../resources/webgl-test-utils.js"> </script>

	15 </head>

	16 <body>

	17 <canvas id="example" width="32" height="32"></canvas>

	18 <div id="description"></div>

	19 <div id="console"></div>

	20 <script id="vshader0" type="x-shader/x-vertex">

	21 attribute vec4 vPosition;

	22 attribute vec2 texCoord0;

	23 varying vec2 texCoord;

	24 void main() {

	25 gl_Position = vPosition;

	26 texCoord = texCoord0;

	27 }

	28 </script>

	29 <script id="fshader0" type="x-shader/x-vertex">

	30 precision mediump float;

	31 uniform sampler2D tex;

	32 uniform float divisor;

	33 varying vec2 texCoord;

	34 void main() {

	35 gl_FragData[0] = texture2DProj(tex, vec3(texCoord, divisor));

	36 }

	37 </script>

	38 <script id="vshader1" type="x-shader/x-vertex">

	39 attribute vec4 vPosition;

	40 attribute vec2 texCoord0;

	41 varying vec2 texCoord;

	42 void main() {

	43 gl_Position = vPosition;

	44 texCoord = texCoord0;

	45 }

	46 </script>

	47 <script id="fshader1" type="x-shader/x-vertex">

	48 precision mediump float;

	49 uniform sampler2D tex;

	50 uniform float divisor;

	51 varying vec2 texCoord;

	52 void main() {

	53 gl_FragData[0] = texture2DProj(tex, vec4(texCoord, 123.0, divisor));

	54 }

	55 </script>

	56 <script>

	57 description("tests GLSL texture2DProj function with");

	58

	59 var wtu = WebGLTestUtils;

	60 var canvas = document.getElementById("example");

	61

	62 var gl = wtu.create3DContext(canvas, {antialias: false});

	63

	64 wtu.setupUnitQuad(gl, 0, 1);

	65 var tex = gl.createTexture();

	66 gl.bindTexture(gl.TEXTURE_2D, tex);

	67 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);

	68 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);

	69 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT);

	70 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT);

	71

	72 var c = document.createElement("canvas");

	73 c.width = 16;

	74 c.height = 16;

	75 var ctx = c.getContext("2d");

	76 ctx.fillStyle = "rgb(0,255,0)";

	77 ctx.fillRect(0, 0, 16, 16);

	78 ctx.fillStyle = "rgb(0,0,255)";

	79 ctx.fillRect(0, 0, 8, 8);

	80 ctx.fillRect(8, 8, 8, 8);

	81

	82 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, c);

	83

	84 for (var ss = 0; ss < 2; ++ss) {

	85 debug("");

	86 debug(ss ? "testing vec4 version" : "testing vec3 version");

	87 var program = wtu.setupProgram(

	88 gl,

	89 [wtu.loadShaderFromScript(gl, 'vshader' + ss, gl.VERTEX_SHADER),

	90 wtu.loadShaderFromScript(gl, 'fshader' + ss, gl.FRAGMENT_SHADER)],

	91 ['vPosition', 'texCoord0'], [0, 1]);

	92 gl.useProgram(program);

	93 var loc = gl.getUniformLocation(program, "divisor");

	94

	95 for (var ii = 0; ii < 3; ++ii) {

	96 var denominator = Math.pow(2, ii);

	97 gl.uniform1f(loc, 1 / denominator);

	98 wtu.drawQuad(gl);

	99 var size = 16 / denominator;

	100 for (var yy = 0; yy < 32; yy += size) {

	101 for (var xx = 0; xx < 32; xx += size) {

	102 var odd = (xx / size + yy / size) % 2;

	103 var color = odd ? [0, 255, 0, 255] : [0, 0, 255, 255];

	104 var msg = "" + xx + ", " + yy + ", " + size + ", " + size + " sh ould be " + (odd ? "green" : "blue");

	105 wtu.checkCanvasRect(gl, xx, yy, size, size, color, msg);

	106 }

	107 }

	108 }

	109 }

	110 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors.");

	111

	112 successfullyParsed = true;

	113

	114 </script>

	115 <script src="../../../resources/js-test-post.js"></script>

	116

	117 </body>

	118 </html>

	119

	120

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