LayoutTests/webgl/resources/webgl_test_files/conformance/rendering/vertex-texture-fetch.html - WebKit - Git at Google

 <!--

 /*
 ** 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>WebGL Vertex Texture Fetch.</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="1" height="1" style="width: 40px; height: 40px;"></canvas>
 <div id="description"></div>
 <div id="console"></div>
 <script id="vs" type="text/something-not-javascript">
 attribute vec4 a_position;
 attribute vec2 a_texCoord;
 uniform sampler2D u_texture;
 varying vec4 color;
 void main() {
     gl_Position = a_position;
     color = texture2D(u_texture, a_texCoord);
 }
 </script>
 <script id="fs" type="text/something-not-javascript">
 precision mediump float;
 varying vec4 color;
 void main() {
     gl_FragColor = color;
 }
 </script>
 <script>
 "use strict";
 description("checks that vertex texture fetch, if supported, operates correctly.");
 var wtu = WebGLTestUtils;
 var gl = wtu.create3DContext("example");
 if (!gl.getParameter(gl.MAX_VERTEX_TEXTURE_IMAGE_UNITS)) {
   testPassed("No vertex texture image units (vertex texture fetch not supported) -- this is legal");
 } else {
   var texture = gl.createTexture();
   gl.bindTexture(gl.TEXTURE_2D, texture);
   gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 2, 2, 0, gl.RGBA, gl.UNSIGNED_BYTE,
                 new Uint8Array([
                     255, 0, 0, 255,
                     0, 255, 0, 255,
                     0, 0, 255, 255,
                     255, 255, 0, 255]));
   gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
   gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
   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.glErrorShouldBe(gl, gl.NO_ERROR, "after creating texture");

   var program = wtu.setupProgram(gl, ["vs", "fs"], ["vPosition", "vTexCoord"]);
   gl.uniform1i(gl.getUniformLocation(program, "u_texture"), 0);
   gl.disable(gl.BLEND);
   gl.disable(gl.DEPTH_TEST);
   wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after initWebGL");
   var bufferObjects = wtu.setupUnitQuad(gl, 0);
   gl.disableVertexAttribArray(1);

   gl.vertexAttrib2f(1, 0, 0);
   wtu.drawQuad(gl);
   wtu.checkCanvas(gl, [255, 0, 0, 255], "Should be red.");

   gl.vertexAttrib2f(1, 1, 0);
   wtu.drawQuad(gl);
   wtu.checkCanvas(gl, [0, 255, 0, 255], "Should be green.");

   gl.vertexAttrib2f(1, 0, 1);
   wtu.drawQuad(gl);
   wtu.checkCanvas(gl, [0, 0, 255, 255], "Should be blue.");

   gl.vertexAttrib2f(1, 1, 1);
   wtu.drawQuad(gl);
   wtu.checkCanvas(gl, [255, 255, 0, 255], "Should be yellow.");

   wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after drawing");
 }

 var successfullyParsed = true;
 </script>

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

 </body>
 </html>
	<!--

	/*
	** 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>WebGL Vertex Texture Fetch.</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="1" height="1" style="width: 40px; height: 40px;"></canvas>
	<div id="description"></div>
	<div id="console"></div>
	<script id="vs" type="text/something-not-javascript">
	attribute vec4 a_position;
	attribute vec2 a_texCoord;
	uniform sampler2D u_texture;
	varying vec4 color;
	void main() {
	gl_Position = a_position;
	color = texture2D(u_texture, a_texCoord);
	}
	</script>
	<script id="fs" type="text/something-not-javascript">
	precision mediump float;
	varying vec4 color;
	void main() {
	gl_FragColor = color;
	}
	</script>
	<script>
	"use strict";
	description("checks that vertex texture fetch, if supported, operates correctly.");
	var wtu = WebGLTestUtils;
	var gl = wtu.create3DContext("example");
	if (!gl.getParameter(gl.MAX_VERTEX_TEXTURE_IMAGE_UNITS)) {
	testPassed("No vertex texture image units (vertex texture fetch not supported) -- this is legal");
	} else {
	var texture = gl.createTexture();
	gl.bindTexture(gl.TEXTURE_2D, texture);
	gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 2, 2, 0, gl.RGBA, gl.UNSIGNED_BYTE,
	new Uint8Array([
	255, 0, 0, 255,
	0, 255, 0, 255,
	0, 0, 255, 255,
	255, 255, 0, 255]));
	gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
	gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
	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.glErrorShouldBe(gl, gl.NO_ERROR, "after creating texture");

	var program = wtu.setupProgram(gl, ["vs", "fs"], ["vPosition", "vTexCoord"]);
	gl.uniform1i(gl.getUniformLocation(program, "u_texture"), 0);
	gl.disable(gl.BLEND);
	gl.disable(gl.DEPTH_TEST);
	wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after initWebGL");
	var bufferObjects = wtu.setupUnitQuad(gl, 0);
	gl.disableVertexAttribArray(1);

	gl.vertexAttrib2f(1, 0, 0);
	wtu.drawQuad(gl);
	wtu.checkCanvas(gl, [255, 0, 0, 255], "Should be red.");

	gl.vertexAttrib2f(1, 1, 0);
	wtu.drawQuad(gl);
	wtu.checkCanvas(gl, [0, 255, 0, 255], "Should be green.");

	gl.vertexAttrib2f(1, 0, 1);
	wtu.drawQuad(gl);
	wtu.checkCanvas(gl, [0, 0, 255, 255], "Should be blue.");

	gl.vertexAttrib2f(1, 1, 1);
	wtu.drawQuad(gl);
	wtu.checkCanvas(gl, [255, 255, 0, 255], "Should be yellow.");

	wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after drawing");
	}

	var successfullyParsed = true;
	</script>

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

	</body>
	</html>