1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/canvas/test/webgl-conformance/conformance/textures/texture-npot.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,225 @@
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 Non-Power of 2 texture conformance test.</title>
1.14 +<link rel="stylesheet" href="../../resources/js-test-style.css"/>
1.15 +<script src="../../resources/js-test-pre.js"></script>
1.16 +<script src="../resources/webgl-test.js"> </script>
1.17 +<script src="../resources/webgl-test-utils.js"> </script>
1.18 +</head>
1.19 +<body>
1.20 +<canvas id="example" width="4" height="4" style="width: 40px; height: 30px;"></canvas>
1.21 +<div id="description"></div>
1.22 +<div id="console"></div>
1.23 +<script id="vshader" type="x-shader/x-vertex">
1.24 +attribute vec4 vPosition;
1.25 +attribute vec2 texCoord0;
1.26 +varying vec2 texCoord;
1.27 +void main()
1.28 +{
1.29 + gl_Position = vPosition;
1.30 + texCoord = texCoord0;
1.31 +}
1.32 +</script>
1.33 +
1.34 +<script id="fshader" type="x-shader/x-fragment">
1.35 +precision mediump float;
1.36 +uniform samplerCube tex;
1.37 +varying vec2 texCoord;
1.38 +void main()
1.39 +{
1.40 + gl_FragColor = textureCube(tex, normalize(vec3(texCoord, 1)));
1.41 +}
1.42 +</script>
1.43 +<script>
1.44 +description(document.title);
1.45 +var wtu = WebGLTestUtils;
1.46 +var gl = wtu.create3DContext("example");
1.47 +var program = wtu.setupTexturedQuad(gl);
1.48 +
1.49 +glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
1.50 +
1.51 +var tex = gl.createTexture();
1.52 +
1.53 +// Check that an NPOT texture not on level 0 generates INVALID_VALUE
1.54 +wtu.fillTexture(gl, tex, 5, 3, [0, 192, 128, 255], 1);
1.55 +glErrorShouldBe(gl, gl.INVALID_VALUE,
1.56 + "gl.texImage2D with NPOT texture with level > 0 should return INVALID_VALUE");
1.57 +
1.58 +// Check that an NPOT texture on level 0 succeeds
1.59 +wtu.fillTexture(gl, tex, 5, 3, [0, 192, 128, 255]);
1.60 +glErrorShouldBe(gl, gl.NO_ERROR,
1.61 + "gl.texImage2D with NPOT texture at level 0 should succeed");
1.62 +
1.63 +// Check that generateMipmap fails on NPOT
1.64 +gl.generateMipmap(gl.TEXTURE_2D);
1.65 +glErrorShouldBe(gl, gl.INVALID_OPERATION,
1.66 + "gl.generateMipmap with NPOT texture should return INVALID_OPERATION");
1.67 +
1.68 +var loc = gl.getUniformLocation(program, "tex");
1.69 +gl.uniform1i(loc, 0);
1.70 +
1.71 +// Check that nothing is drawn if filtering is not correct for NPOT
1.72 +gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
1.73 +gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
1.74 +gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT);
1.75 +gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT);
1.76 +
1.77 +wtu.drawQuad(gl);
1.78 +wtu.checkCanvas(
1.79 + gl, [0, 0, 0, 255],
1.80 + "NPOT texture with TEXTURE_WRAP set to REPEAT should draw with 0,0,0,255");
1.81 +glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
1.82 +
1.83 +gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
1.84 +gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
1.85 +gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST_MIPMAP_LINEAR);
1.86 +
1.87 +wtu.drawQuad(gl);
1.88 +wtu.checkCanvas(
1.89 + gl, [0, 0, 0, 255],
1.90 + "NPOT texture with TEXTURE_MIN_FILTER not NEAREST or LINEAR should draw with 0,0,0,255");
1.91 +glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
1.92 +
1.93 +gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
1.94 +
1.95 +wtu.drawQuad(gl);
1.96 +wtu.checkCanvas(
1.97 + gl, [0, 192, 128, 255],
1.98 + "NPOT texture with TEXTURE_MIN_FILTER set to LINEAR should draw.");
1.99 +
1.100 +gl.copyTexImage2D(gl.TEXTURE_2D, 1, gl.RGBA, 0, 0, 5, 3, 0);
1.101 +glErrorShouldBe(gl, gl.INVALID_VALUE,
1.102 + "copyTexImage2D with NPOT texture with level > 0 should return INVALID_VALUE.");
1.103 +
1.104 +// Check that generateMipmap for an POT texture succeeds
1.105 +wtu.fillTexture(gl, tex, 4, 4, [0, 192, 128, 255]);
1.106 +gl.generateMipmap(gl.TEXTURE_2D);
1.107 +glErrorShouldBe(gl, gl.NO_ERROR,
1.108 + "gl.texImage2D and gl.generateMipmap with POT texture at level 0 should succeed");
1.109 +
1.110 +gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR);
1.111 +gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
1.112 +gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT);
1.113 +gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT);
1.114 +
1.115 +wtu.drawQuad(gl);
1.116 +wtu.checkCanvas(
1.117 + gl, [0, 192, 128, 255],
1.118 + "POT texture with TEXTURE_MIN_FILTER set to LINEAR_MIPMAP_LINEAR should draw.");
1.119 +glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
1.120 +
1.121 +debug("");
1.122 +debug("check using cubemap");
1.123 +var program = wtu.setupProgram(
1.124 + gl, ['vshader', 'fshader'], ['vPosition', 'texCoord0'], [0, 1]);
1.125 +var tex = gl.createTexture();
1.126 +
1.127 +// Check that an NPOT texture not on level 0 generates INVALID_VALUE
1.128 +fillCubeTexture(gl, tex, 5, 3, [0, 192, 128, 255], 1);
1.129 +glErrorShouldBe(gl, gl.INVALID_VALUE,
1.130 + "gl.texImage2D with NPOT texture with level > 0 should return INVALID_VALUE");
1.131 +
1.132 +// Check that an NPOT texture on level 0 succeeds
1.133 +fillCubeTexture(gl, tex, 5, 5, [0, 192, 128, 255]);
1.134 +glErrorShouldBe(gl, gl.NO_ERROR,
1.135 + "gl.texImage2D with NPOT texture at level 0 should succeed");
1.136 +
1.137 +// Check that generateMipmap fails on NPOT
1.138 +gl.generateMipmap(gl.TEXTURE_CUBE_MAP);
1.139 +glErrorShouldBe(gl, gl.INVALID_OPERATION,
1.140 + "gl.generateMipmap with NPOT texture should return INVALID_OPERATION");
1.141 +
1.142 +var loc = gl.getUniformLocation(program, "tex");
1.143 +gl.uniform1i(loc, 0);
1.144 +
1.145 +// Check that nothing is drawn if filtering is not correct for NPOT
1.146 +gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
1.147 +gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
1.148 +gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_S, gl.REPEAT);
1.149 +gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_T, gl.REPEAT);
1.150 +
1.151 +wtu.drawQuad(gl);
1.152 +wtu.checkCanvas(
1.153 + gl, [0, 0, 0, 255],
1.154 + "NPOT cubemap with TEXTURE_WRAP set to REPEAT should draw with 0,0,0,255");
1.155 +glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
1.156 +
1.157 +gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
1.158 +gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
1.159 +gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MIN_FILTER, gl.NEAREST_MIPMAP_LINEAR);
1.160 +
1.161 +wtu.drawQuad(gl);
1.162 +wtu.checkCanvas(
1.163 + gl, [0, 0, 0, 255],
1.164 + "NPOT cubemap with TEXTURE_MIN_FILTER not NEAREST or LINEAR should draw with 0,0,0,255");
1.165 +glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
1.166 +
1.167 +gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
1.168 +
1.169 +wtu.drawQuad(gl);
1.170 +wtu.checkCanvas(
1.171 + gl, [0, 192, 128, 255],
1.172 + "NPOT cubemap with TEXTURE_MIN_FILTER set to LINEAR should draw.");
1.173 +
1.174 +// Check that an POT texture on level 0 succeeds
1.175 +fillCubeTexture(gl, tex, 4, 4, [0, 192, 128, 255]);
1.176 +glErrorShouldBe(gl, gl.NO_ERROR,
1.177 + "gl.texImage2D with POT texture at level 0 should succeed");
1.178 +
1.179 +gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR);
1.180 +gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
1.181 +gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_S, gl.REPEAT);
1.182 +gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_T, gl.REPEAT);
1.183 +
1.184 +wtu.drawQuad(gl);
1.185 +wtu.checkCanvas(
1.186 + gl, [0, 0, 0, 255],
1.187 + "POT cubemap with TEXTURE_MIN_FILTER set to LINEAR_MIPMAP_LINEAR but no mips draw with 0,0,0,255");
1.188 +
1.189 +// Check that generateMipmap succeeds on POT
1.190 +gl.generateMipmap(gl.TEXTURE_CUBE_MAP);
1.191 +glErrorShouldBe(gl, gl.NO_ERROR,
1.192 + "gl.generateMipmap with POT texture should return succeed");
1.193 +
1.194 +wtu.drawQuad(gl);
1.195 +wtu.checkCanvas(
1.196 + gl, [0, 192, 128, 255],
1.197 + "POT cubemap with TEXTURE_MIN_FILTER set to LINEAR_MIPMAP_LINEAR should draw.");
1.198 +
1.199 +successfullyParsed = true;
1.200 +
1.201 +function fillCubeTexture(gl, tex, width, height, color, opt_level) {
1.202 + opt_level = opt_level || 0;
1.203 + var canvas = document.createElement('canvas');
1.204 + canvas.width = width;
1.205 + canvas.height = height;
1.206 + var ctx2d = canvas.getContext('2d');
1.207 + ctx2d.fillStyle = "rgba(" + color[0] + "," + color[1] + "," + color[2] + "," + color[3] + ")";
1.208 + ctx2d.fillRect(0, 0, width, height);
1.209 + gl.bindTexture(gl.TEXTURE_CUBE_MAP, tex);
1.210 + var targets = [
1.211 + gl.TEXTURE_CUBE_MAP_POSITIVE_X,
1.212 + gl.TEXTURE_CUBE_MAP_NEGATIVE_X,
1.213 + gl.TEXTURE_CUBE_MAP_POSITIVE_Y,
1.214 + gl.TEXTURE_CUBE_MAP_NEGATIVE_Y,
1.215 + gl.TEXTURE_CUBE_MAP_POSITIVE_Z,
1.216 + gl.TEXTURE_CUBE_MAP_NEGATIVE_Z];
1.217 + for (var tt = 0; tt < targets.length; ++tt) {
1.218 + gl.texImage2D(
1.219 + targets[tt], opt_level, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, canvas);
1.220 + }
1.221 +};
1.222 +
1.223 +</script>
1.224 +<script>finishTest();</script>
1.225 +
1.226 +</body>
1.227 +</html>
1.228 +
