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content/canvas/test/webgl-conformance/conformance/textures/texture-npot.html@8bccb770b82d

content/canvas/test/webgl-conformance/conformance/textures/texture-npot.html

Wed, 31 Dec 2014 13:27:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 13:27:57 +0100
branch
TOR_BUG_3246
changeset 6
8bccb770b82d
permissions
-rw-r--r--

Ignore runtime configuration files generated during quality assurance.

     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 Non-Power of 2 texture 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="4" height="4" style="width: 40px; height: 30px;"></canvas>

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

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

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

    21 attribute vec4 vPosition;

    22 attribute vec2 texCoord0;

    23 varying vec2 texCoord;

    24 void main()

    25 {

    26     gl_Position = vPosition;

    27     texCoord = texCoord0;

    28 }

    29 </script>

    30 

    31 <script id="fshader" type="x-shader/x-fragment">

    32 precision mediump float;

    33 uniform samplerCube tex;

    34 varying vec2 texCoord;

    35 void main()

    36 {

    37     gl_FragColor = textureCube(tex, normalize(vec3(texCoord, 1)));

    38 }

    39 </script>

    40 <script>

    41 description(document.title);

    42 var wtu = WebGLTestUtils;

    43 var gl = wtu.create3DContext("example");

    44 var program = wtu.setupTexturedQuad(gl);

    45 

    46 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");

    47 

    48 var tex = gl.createTexture();

    49 

    50 // Check that an NPOT texture not on level 0 generates INVALID_VALUE

    51 wtu.fillTexture(gl, tex, 5, 3, [0, 192, 128, 255], 1);

    52 glErrorShouldBe(gl, gl.INVALID_VALUE,

    53     "gl.texImage2D with NPOT texture with level > 0 should return INVALID_VALUE");

    54 

    55 // Check that an NPOT texture on level 0 succeeds

    56 wtu.fillTexture(gl, tex, 5, 3, [0, 192, 128, 255]);

    57 glErrorShouldBe(gl, gl.NO_ERROR,

    58     "gl.texImage2D with NPOT texture at level 0 should succeed");

    59 

    60 // Check that generateMipmap fails on NPOT

    61 gl.generateMipmap(gl.TEXTURE_2D);

    62 glErrorShouldBe(gl, gl.INVALID_OPERATION,

    63     "gl.generateMipmap with NPOT texture should return INVALID_OPERATION");

    64 

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

    66 gl.uniform1i(loc, 0);

    67 

    68 // Check that nothing is drawn if filtering is not correct for NPOT

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

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

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

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

    73 

    74 wtu.drawQuad(gl);

    75 wtu.checkCanvas(

    76     gl, [0, 0, 0, 255],

    77     "NPOT texture with TEXTURE_WRAP set to REPEAT should draw with 0,0,0,255");

    78 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");

    79 

    80 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);

    81 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);

    82 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST_MIPMAP_LINEAR);

    83 

    84 wtu.drawQuad(gl);

    85 wtu.checkCanvas(

    86     gl, [0, 0, 0, 255],

    87     "NPOT texture with TEXTURE_MIN_FILTER not NEAREST or LINEAR should draw with 0,0,0,255");

    88 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");

    89 

    90 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);

    91 

    92 wtu.drawQuad(gl);

    93 wtu.checkCanvas(

    94     gl, [0, 192, 128, 255],

    95     "NPOT texture with TEXTURE_MIN_FILTER set to LINEAR should draw.");

    96 

    97 gl.copyTexImage2D(gl.TEXTURE_2D, 1, gl.RGBA, 0, 0, 5, 3, 0);

    98 glErrorShouldBe(gl, gl.INVALID_VALUE,

    99     "copyTexImage2D with NPOT texture with level > 0 should return INVALID_VALUE.");

   100 

   101 // Check that generateMipmap for an POT texture succeeds

   102 wtu.fillTexture(gl, tex, 4, 4, [0, 192, 128, 255]);

   103 gl.generateMipmap(gl.TEXTURE_2D);

   104 glErrorShouldBe(gl, gl.NO_ERROR,

   105     "gl.texImage2D and gl.generateMipmap with POT texture at level 0 should succeed");

   106 

   107 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR);

   108 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);

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

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

   111 

   112 wtu.drawQuad(gl);

   113 wtu.checkCanvas(

   114     gl, [0, 192, 128, 255],

   115     "POT texture with TEXTURE_MIN_FILTER set to LINEAR_MIPMAP_LINEAR should draw.");

   116 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");

   117 

   118 debug("");

   119 debug("check using cubemap");

   120 var program = wtu.setupProgram(

   121     gl, ['vshader', 'fshader'], ['vPosition', 'texCoord0'], [0, 1]);

   122 var tex = gl.createTexture();

   123 

   124 // Check that an NPOT texture not on level 0 generates INVALID_VALUE

   125 fillCubeTexture(gl, tex, 5, 3, [0, 192, 128, 255], 1);

   126 glErrorShouldBe(gl, gl.INVALID_VALUE,

   127     "gl.texImage2D with NPOT texture with level > 0 should return INVALID_VALUE");

   128 

   129 // Check that an NPOT texture on level 0 succeeds

   130 fillCubeTexture(gl, tex, 5, 5, [0, 192, 128, 255]);

   131 glErrorShouldBe(gl, gl.NO_ERROR,

   132     "gl.texImage2D with NPOT texture at level 0 should succeed");

   133 

   134 // Check that generateMipmap fails on NPOT

   135 gl.generateMipmap(gl.TEXTURE_CUBE_MAP);

   136 glErrorShouldBe(gl, gl.INVALID_OPERATION,

   137     "gl.generateMipmap with NPOT texture should return INVALID_OPERATION");

   138 

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

   140 gl.uniform1i(loc, 0);

   141 

   142 // Check that nothing is drawn if filtering is not correct for NPOT

   143 gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MIN_FILTER, gl.NEAREST);

   144 gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MAG_FILTER, gl.NEAREST);

   145 gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_S, gl.REPEAT);

   146 gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_T, gl.REPEAT);

   147 

   148 wtu.drawQuad(gl);

   149 wtu.checkCanvas(

   150     gl, [0, 0, 0, 255],

   151     "NPOT cubemap with TEXTURE_WRAP set to REPEAT should draw with 0,0,0,255");

   152 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");

   153 

   154 gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);

   155 gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);

   156 gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MIN_FILTER, gl.NEAREST_MIPMAP_LINEAR);

   157 

   158 wtu.drawQuad(gl);

   159 wtu.checkCanvas(

   160     gl, [0, 0, 0, 255],

   161     "NPOT cubemap with TEXTURE_MIN_FILTER not NEAREST or LINEAR should draw with 0,0,0,255");

   162 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");

   163 

   164 gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MIN_FILTER, gl.LINEAR);

   165 

   166 wtu.drawQuad(gl);

   167 wtu.checkCanvas(

   168     gl, [0, 192, 128, 255],

   169     "NPOT cubemap with TEXTURE_MIN_FILTER set to LINEAR should draw.");

   170 

   171 // Check that an POT texture on level 0 succeeds

   172 fillCubeTexture(gl, tex, 4, 4, [0, 192, 128, 255]);

   173 glErrorShouldBe(gl, gl.NO_ERROR,

   174     "gl.texImage2D with POT texture at level 0 should succeed");

   175 

   176 gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR);

   177 gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MAG_FILTER, gl.LINEAR);

   178 gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_S, gl.REPEAT);

   179 gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_T, gl.REPEAT);

   180 

   181 wtu.drawQuad(gl);

   182 wtu.checkCanvas(

   183     gl, [0, 0, 0, 255],

   184     "POT cubemap with TEXTURE_MIN_FILTER set to LINEAR_MIPMAP_LINEAR but no mips draw with 0,0,0,255");

   185 

   186 // Check that generateMipmap succeeds on POT

   187 gl.generateMipmap(gl.TEXTURE_CUBE_MAP);

   188 glErrorShouldBe(gl, gl.NO_ERROR,

   189     "gl.generateMipmap with POT texture should return succeed");

   190 

   191 wtu.drawQuad(gl);

   192 wtu.checkCanvas(

   193     gl, [0, 192, 128, 255],

   194     "POT cubemap with TEXTURE_MIN_FILTER set to LINEAR_MIPMAP_LINEAR should draw.");

   195 

   196 successfullyParsed = true;

   197 

   198 function fillCubeTexture(gl, tex, width, height, color, opt_level) {

   199   opt_level = opt_level || 0;

   200   var canvas = document.createElement('canvas');

   201   canvas.width = width;

   202   canvas.height = height;

   203   var ctx2d = canvas.getContext('2d');

   204   ctx2d.fillStyle = "rgba(" + color[0] + "," + color[1] + "," + color[2] + "," + color[3] + ")";

   205   ctx2d.fillRect(0, 0, width, height);

   206   gl.bindTexture(gl.TEXTURE_CUBE_MAP, tex);

   207   var targets = [

   208     gl.TEXTURE_CUBE_MAP_POSITIVE_X,

   209     gl.TEXTURE_CUBE_MAP_NEGATIVE_X,

   210     gl.TEXTURE_CUBE_MAP_POSITIVE_Y,

   211     gl.TEXTURE_CUBE_MAP_NEGATIVE_Y,

   212     gl.TEXTURE_CUBE_MAP_POSITIVE_Z,

   213     gl.TEXTURE_CUBE_MAP_NEGATIVE_Z];

   214   for (var tt = 0; tt < targets.length; ++tt) {

   215     gl.texImage2D(

   216         targets[tt], opt_level, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, canvas);

   217   }

   218 };

   219 

   220 </script>

   221 <script>finishTest();</script>

   222 

   223 </body>

   224 </html>

   225

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