LayoutTests/http/tests/webgl/1.0.2/resources/webgl_test_files/conformance/textures/tex-sub-image-2d.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">
 <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>
 <script id="fshader" type="x-shader/x-fragment">
 precision mediump float;

 uniform sampler2D tex;
 varying vec2 texCoord;

 void main()
 {
     float intensity = texture2D(tex, texCoord).a;
     gl_FragColor = vec4(intensity, intensity, intensity, 1.0);
 }
 </script>

 </head>
 <body>
 <canvas id="example" width="256" height="1"></canvas>
 <div id="description"></div>
 <div id="console"></div>
 <script>
 "use strict";
 description('Tests texSubImage2D upload path from Uint8Array');

 var wtu = WebGLTestUtils;
 var canvas = document.getElementById("example");
 var gl = wtu.create3DContext(canvas);
 gl.disable(gl.DITHER);
 var program = wtu.setupProgram(
     gl,
     [wtu.setupSimpleTextureVertexShader(gl), "fshader"],
     ['vPosition', 'texCoord0']);
 wtu.setupUnitQuad(gl);
 var textureWidth = 256;
 var textureHeight = 1;

 var textureLoc = gl.getUniformLocation(program, "tex");

 var texture = gl.createTexture();
 gl.bindTexture(gl.TEXTURE_2D, texture);
 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);
 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
 // Allocate the texture object
 gl.texImage2D(gl.TEXTURE_2D, 0, gl.ALPHA, textureWidth, textureHeight, 0, gl.ALPHA, gl.UNSIGNED_BYTE, null);
 // Prepare the image data
 var array = new Uint8Array(textureWidth);
 for (var i = 0; i < textureWidth; i++)
     array[i] = i;
 // Fill the texture object with data -- this is actually the code path being tested
 gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, textureWidth, textureHeight, gl.ALPHA, gl.UNSIGNED_BYTE, array);

 // Clear and set up
 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
 gl.bindTexture(gl.TEXTURE_2D, texture);
 gl.useProgram(program);
 gl.uniform1i(textureLoc, 0);
 // Draw the texture to the frame buffer
 gl.drawArrays(gl.TRIANGLES, 0, 6);

 // Read back the frame buffer
 var buf = new Uint8Array(textureWidth * textureHeight * 4);
 gl.readPixels(0, 0, textureWidth, textureHeight, gl.RGBA, gl.UNSIGNED_BYTE, buf);

 // Verify the frame buffer's contents
 var passed = true;
 for (var i = 0; i < textureWidth; i++) {
     var val = i;
     if (buf[4 * i + 0] != val ||
         buf[4 * i + 1] != val ||
         buf[4 * i + 2] != val) {
         testFailed("pixel at (" + i + ", 0) was (" +
                    buf[4 * i + 0] + ", " +
                    buf[4 * i + 1] + ", " +
                    buf[4 * i + 2] + "), should be (" +
                    val + ", " + val + ", " + val + ")");
         passed = false;
         break;
     }
 }

 if (passed)
     testPassed("");

 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">
	<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>
	<script id="fshader" type="x-shader/x-fragment">
	precision mediump float;

	uniform sampler2D tex;
	varying vec2 texCoord;

	void main()
	{
	float intensity = texture2D(tex, texCoord).a;
	gl_FragColor = vec4(intensity, intensity, intensity, 1.0);
	}
	</script>

	</head>
	<body>
	<canvas id="example" width="256" height="1"></canvas>
	<div id="description"></div>
	<div id="console"></div>
	<script>
	"use strict";
	description('Tests texSubImage2D upload path from Uint8Array');

	var wtu = WebGLTestUtils;
	var canvas = document.getElementById("example");
	var gl = wtu.create3DContext(canvas);
	gl.disable(gl.DITHER);
	var program = wtu.setupProgram(
	gl,
	[wtu.setupSimpleTextureVertexShader(gl), "fshader"],
	['vPosition', 'texCoord0']);
	wtu.setupUnitQuad(gl);
	var textureWidth = 256;
	var textureHeight = 1;

	var textureLoc = gl.getUniformLocation(program, "tex");

	var texture = gl.createTexture();
	gl.bindTexture(gl.TEXTURE_2D, texture);
	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);
	gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
	gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
	// Allocate the texture object
	gl.texImage2D(gl.TEXTURE_2D, 0, gl.ALPHA, textureWidth, textureHeight, 0, gl.ALPHA, gl.UNSIGNED_BYTE, null);
	// Prepare the image data
	var array = new Uint8Array(textureWidth);
	for (var i = 0; i < textureWidth; i++)
	array[i] = i;
	// Fill the texture object with data -- this is actually the code path being tested
	gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, textureWidth, textureHeight, gl.ALPHA, gl.UNSIGNED_BYTE, array);

	// Clear and set up
	gl.clear(gl.COLOR_BUFFER_BIT \| gl.DEPTH_BUFFER_BIT);
	gl.bindTexture(gl.TEXTURE_2D, texture);
	gl.useProgram(program);
	gl.uniform1i(textureLoc, 0);
	// Draw the texture to the frame buffer
	gl.drawArrays(gl.TRIANGLES, 0, 6);

	// Read back the frame buffer
	var buf = new Uint8Array(textureWidth * textureHeight * 4);
	gl.readPixels(0, 0, textureWidth, textureHeight, gl.RGBA, gl.UNSIGNED_BYTE, buf);

	// Verify the frame buffer's contents
	var passed = true;
	for (var i = 0; i < textureWidth; i++) {
	var val = i;
	if (buf[4 * i + 0] != val \|\|
	buf[4 * i + 1] != val \|\|
	buf[4 * i + 2] != val) {
	testFailed("pixel at (" + i + ", 0) was (" +
	buf[4 * i + 0] + ", " +
	buf[4 * i + 1] + ", " +
	buf[4 * i + 2] + "), should be (" +
	val + ", " + val + ", " + val + ")");
	passed = false;
	break;
	}
	}

	if (passed)
	testPassed("");

	var successfullyParsed = true;
	</script>
	<script src="../../resources/js-test-post.js"></script>
	</body>
	</html>