LayoutTests/http/tests/webgl/1.0.2/resources/webgl_test_files/conformance/textures/texture-size.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 texture size conformance 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="32" height="32" style="width: 40px; height: 40px;"></canvas>
 <div id="description"></div>
 <div id="console"></div>
 <script id="vshader" type="x-shader/x-vertex">
 attribute vec4 vPosition;
 attribute vec3 texCoord0;
 varying vec3 texCoord;
 void main()
 {
     gl_Position = vPosition;
     texCoord = texCoord0;
 }
 </script>

 <script id="fshader" type="x-shader/x-fragment">
 precision mediump float;
 uniform samplerCube tex;
 varying vec3 texCoord;
 void main()
 {
     gl_FragColor = textureCube(tex, normalize(texCoord));
 }
 </script>
 <script>
 "use strict";
 description("Checks that various sizes of textures render")
 var canvas;

 var wtu = WebGLTestUtils;
 var gl = wtu.create3DContext("example");
 var program2D = wtu.setupTexturedQuad(gl);
 var programCubeMap = wtu.setupProgram(
     gl, ['vshader', 'fshader'], ['vPosition', 'texCoord0'], [0, 1]);
 gl.disable(gl.DEPTH_TEST);
 gl.disable(gl.BLEND);
 var tex = gl.createTexture();
 var max2DSize = gl.getParameter(gl.MAX_TEXTURE_SIZE);
 var maxCubeMapSize = gl.getParameter(gl.MAX_CUBE_MAP_TEXTURE_SIZE);
 debug("MAX_TEXTURE_SIZE:" + max2DSize);
 debug("MAX_CUBE_MAP_TEXTURE_SIZE:" + maxCubeMapSize);
 // Assuming 2048x2048xRGBA (22meg with mips) will run on all WebGL platforms
 var max2DSquareSize = Math.min(max2DSize, 2048);
 // I'd prefer this to be 2048 but that's 16meg x 6 faces or 128meg (with mips)
 // 1024 is 33.5 meg (with mips)
 var maxCubeMapSize = Math.min(maxCubeMapSize, 1024);

 var colors = [
   { name: "green", rgba: [0, 0, 255, 255] },
   { name: "red", rgba: [255, 0, 0, 255] },
   { name: "blue", rgba: [0, 255, 0, 255] },
   { name: "yellow", rgba: [255, 255, 0, 255] },
   { name: "magenta", rgba: [255, 0, 255, 255] },
   { name: "cyan", rgba: [0, 255, 255, 255] }
 ];

 var count = 0;
 var power = 0;
 runTest();

 function runTest() {
   function doTest() {
     var size = Math.pow(2, power);
     if (size > max2DSize) {
       return false;
     }
     gl.useProgram(program2D);
     if (!checkTexture(size, 1, false)) return false;
     if (!checkTexture(1, size, false)) return false;
     if (size <= max2DSquareSize) {
       if (!checkTexture(size, size, false)) {
         return false;
       }
     }
     if (size <= maxCubeMapSize) {
       gl.useProgram(programCubeMap);
       if (!checkTexture(size, size, true)) {
         return false;
       }
     }
     return true;
   }

   if (doTest()) {
     ++power;
     setTimeout(runTest, 0);
   } else {
     finishTest();
   }
 }

 function checkTexture(width, height, cubeMap) {
   debug("");
   count = (count + 1) % colors.length;
   var color = colors[count];
   var tex = gl.createTexture();
   var target = cubeMap ? gl.TEXTURE_CUBE_MAP : gl.TEXTURE_2D;
   var type = cubeMap ? "cube map" : "2D texture";
   debug("check " + width + ", " + height + " " + type);
   gl.bindTexture(target, tex);
   gl.texParameteri(target, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
   gl.texParameteri(target, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
   gl.texParameteri(target, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
   fillLevel(0, width, height, color.rgba, cubeMap);
   var err = gl.getError();
   if (err == gl.OUT_OF_MEMORY) {
     debug("out of memory");
     return false;
   }
   if (err != gl.NO_ERROR) {
     testFailed("unexpected gl error: " + wtu.glEnumToString(gl, err));
   }
   wtu.clearAndDrawUnitQuad(gl);
   wtu.checkCanvas(gl, color.rgba,
       type + " of size " + width + "x" + height + " with no mips should draw with " + color.name);
   count = (count + 1) % colors.length;
   color = colors[count];
   fillLevel(0, width, height, color.rgba, cubeMap);
   gl.generateMipmap(target);
   var err = gl.getError();
   if (err == gl.OUT_OF_MEMORY) {
     debug("out of memory");
     return false;
   }
   if (err != gl.NO_ERROR) {
     testFailed("unexpected gl error: " + wtu.glEnumToString(gl, err));
   }
   gl.texParameteri(target, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_NEAREST);
   wtu.clearAndDrawUnitQuad(gl);
   wtu.checkCanvas(gl, color.rgba,
       type + " of size " + width + "x" + height + " with mips should draw with " + color.name);

   count = (count + 1) % colors.length;
   color = colors[count];
   fillLevel(0, width, height, color.rgba, cubeMap, true);
   gl.generateMipmap(target);

   wtu.clearAndDrawUnitQuad(gl);
   wtu.checkCanvas(gl, color.rgba,
       type + " of size " + width + "x" + height + " with mips should draw with " + color.name);

   gl.deleteTexture(tex);
   glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors.");
   return true;
 }

 function fillLevel(level, width, height, color, opt_cubemap, opt_subTex) {
   var numPixels = width * height;
   var pixels = null;
   var largeDim = Math.max(width, height);
   var smallDim = Math.min(width, height);

   var pixelRow = new Uint8Array(largeDim * 4);
   for (var jj = 0; jj < largeDim; ++jj) {
     var off = jj * 4;
     pixelRow[off + 0] = color[0];
     pixelRow[off + 1] = color[1];
     pixelRow[off + 2] = color[2];
     pixelRow[off + 3] = color[3];
   }

   if (largeDim == numPixels) {
     pixels = pixelRow;
   } else {
     var pixels = new Uint8Array(numPixels * 4);
     for (var jj = 0; jj < smallDim; ++jj) {
       var off = jj * largeDim * 4;
       pixels.set(pixelRow, off);
     }
   }

   var targets = opt_cubemap ? [
     gl.TEXTURE_CUBE_MAP_POSITIVE_X,
     gl.TEXTURE_CUBE_MAP_NEGATIVE_X,
     gl.TEXTURE_CUBE_MAP_POSITIVE_Y,
     gl.TEXTURE_CUBE_MAP_NEGATIVE_Y,
     gl.TEXTURE_CUBE_MAP_POSITIVE_Z,
     gl.TEXTURE_CUBE_MAP_NEGATIVE_Z] :
     [gl.TEXTURE_2D];

   for (var ii = 0; ii < targets.length; ++ii) {
     // debug(wtu.glEnumToString(gl, targets[ii]));
     var index = (ii + power) % targets.length;
     var target = targets[index];
     if (opt_subTex) {
       gl.texSubImage2D(
           target, level, 0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE,
           pixels);
     } else {
       gl.texImage2D(
           target, level, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE,
           pixels);
     }
   }
 }

 var successfullyParsed = true;
 </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 texture size conformance 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="32" height="32" style="width: 40px; height: 40px;"></canvas>
	<div id="description"></div>
	<div id="console"></div>
	<script id="vshader" type="x-shader/x-vertex">
	attribute vec4 vPosition;
	attribute vec3 texCoord0;
	varying vec3 texCoord;
	void main()
	{
	gl_Position = vPosition;
	texCoord = texCoord0;
	}
	</script>

	<script id="fshader" type="x-shader/x-fragment">
	precision mediump float;
	uniform samplerCube tex;
	varying vec3 texCoord;
	void main()
	{
	gl_FragColor = textureCube(tex, normalize(texCoord));
	}
	</script>
	<script>
	"use strict";
	description("Checks that various sizes of textures render")
	var canvas;

	var wtu = WebGLTestUtils;
	var gl = wtu.create3DContext("example");
	var program2D = wtu.setupTexturedQuad(gl);
	var programCubeMap = wtu.setupProgram(
	gl, ['vshader', 'fshader'], ['vPosition', 'texCoord0'], [0, 1]);
	gl.disable(gl.DEPTH_TEST);
	gl.disable(gl.BLEND);
	var tex = gl.createTexture();
	var max2DSize = gl.getParameter(gl.MAX_TEXTURE_SIZE);
	var maxCubeMapSize = gl.getParameter(gl.MAX_CUBE_MAP_TEXTURE_SIZE);
	debug("MAX_TEXTURE_SIZE:" + max2DSize);
	debug("MAX_CUBE_MAP_TEXTURE_SIZE:" + maxCubeMapSize);
	// Assuming 2048x2048xRGBA (22meg with mips) will run on all WebGL platforms
	var max2DSquareSize = Math.min(max2DSize, 2048);
	// I'd prefer this to be 2048 but that's 16meg x 6 faces or 128meg (with mips)
	// 1024 is 33.5 meg (with mips)
	var maxCubeMapSize = Math.min(maxCubeMapSize, 1024);

	var colors = [
	{ name: "green", rgba: [0, 0, 255, 255] },
	{ name: "red", rgba: [255, 0, 0, 255] },
	{ name: "blue", rgba: [0, 255, 0, 255] },
	{ name: "yellow", rgba: [255, 255, 0, 255] },
	{ name: "magenta", rgba: [255, 0, 255, 255] },
	{ name: "cyan", rgba: [0, 255, 255, 255] }
	];

	var count = 0;
	var power = 0;
	runTest();

	function runTest() {
	function doTest() {
	var size = Math.pow(2, power);
	if (size > max2DSize) {
	return false;
	}
	gl.useProgram(program2D);
	if (!checkTexture(size, 1, false)) return false;
	if (!checkTexture(1, size, false)) return false;
	if (size <= max2DSquareSize) {
	if (!checkTexture(size, size, false)) {
	return false;
	}
	}
	if (size <= maxCubeMapSize) {
	gl.useProgram(programCubeMap);
	if (!checkTexture(size, size, true)) {
	return false;
	}
	}
	return true;
	}

	if (doTest()) {
	++power;
	setTimeout(runTest, 0);
	} else {
	finishTest();
	}
	}

	function checkTexture(width, height, cubeMap) {
	debug("");
	count = (count + 1) % colors.length;
	var color = colors[count];
	var tex = gl.createTexture();
	var target = cubeMap ? gl.TEXTURE_CUBE_MAP : gl.TEXTURE_2D;
	var type = cubeMap ? "cube map" : "2D texture";
	debug("check " + width + ", " + height + " " + type);
	gl.bindTexture(target, tex);
	gl.texParameteri(target, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
	gl.texParameteri(target, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
	gl.texParameteri(target, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
	fillLevel(0, width, height, color.rgba, cubeMap);
	var err = gl.getError();
	if (err == gl.OUT_OF_MEMORY) {
	debug("out of memory");
	return false;
	}
	if (err != gl.NO_ERROR) {
	testFailed("unexpected gl error: " + wtu.glEnumToString(gl, err));
	}
	wtu.clearAndDrawUnitQuad(gl);
	wtu.checkCanvas(gl, color.rgba,
	type + " of size " + width + "x" + height + " with no mips should draw with " + color.name);
	count = (count + 1) % colors.length;
	color = colors[count];
	fillLevel(0, width, height, color.rgba, cubeMap);
	gl.generateMipmap(target);
	var err = gl.getError();
	if (err == gl.OUT_OF_MEMORY) {
	debug("out of memory");
	return false;
	}
	if (err != gl.NO_ERROR) {
	testFailed("unexpected gl error: " + wtu.glEnumToString(gl, err));
	}
	gl.texParameteri(target, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_NEAREST);
	wtu.clearAndDrawUnitQuad(gl);
	wtu.checkCanvas(gl, color.rgba,
	type + " of size " + width + "x" + height + " with mips should draw with " + color.name);

	count = (count + 1) % colors.length;
	color = colors[count];
	fillLevel(0, width, height, color.rgba, cubeMap, true);
	gl.generateMipmap(target);

	wtu.clearAndDrawUnitQuad(gl);
	wtu.checkCanvas(gl, color.rgba,
	type + " of size " + width + "x" + height + " with mips should draw with " + color.name);

	gl.deleteTexture(tex);
	glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors.");
	return true;
	}

	function fillLevel(level, width, height, color, opt_cubemap, opt_subTex) {
	var numPixels = width * height;
	var pixels = null;
	var largeDim = Math.max(width, height);
	var smallDim = Math.min(width, height);

	var pixelRow = new Uint8Array(largeDim * 4);
	for (var jj = 0; jj < largeDim; ++jj) {
	var off = jj * 4;
	pixelRow[off + 0] = color[0];
	pixelRow[off + 1] = color[1];
	pixelRow[off + 2] = color[2];
	pixelRow[off + 3] = color[3];
	}

	if (largeDim == numPixels) {
	pixels = pixelRow;
	} else {
	var pixels = new Uint8Array(numPixels * 4);
	for (var jj = 0; jj < smallDim; ++jj) {
	var off = jj * largeDim * 4;
	pixels.set(pixelRow, off);
	}
	}

	var targets = opt_cubemap ? [
	gl.TEXTURE_CUBE_MAP_POSITIVE_X,
	gl.TEXTURE_CUBE_MAP_NEGATIVE_X,
	gl.TEXTURE_CUBE_MAP_POSITIVE_Y,
	gl.TEXTURE_CUBE_MAP_NEGATIVE_Y,
	gl.TEXTURE_CUBE_MAP_POSITIVE_Z,
	gl.TEXTURE_CUBE_MAP_NEGATIVE_Z] :
	[gl.TEXTURE_2D];

	for (var ii = 0; ii < targets.length; ++ii) {
	// debug(wtu.glEnumToString(gl, targets[ii]));
	var index = (ii + power) % targets.length;
	var target = targets[index];
	if (opt_subTex) {
	gl.texSubImage2D(
	target, level, 0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE,
	pixels);
	} else {
	gl.texImage2D(
	target, level, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE,
	pixels);
	}
	}
	}

	var successfullyParsed = true;
	</script>
	</body>
	</html>