texture-npot.html (5150B)
1 <!-- 2 Copyright (c) 2019 The Khronos Group Inc. 3 Use of this source code is governed by an MIT-style license that can be 4 found in the LICENSE.txt file. 5 --> 6 7 <!DOCTYPE html> 8 <html> 9 <head> 10 <meta charset="utf-8"> 11 <title>WebGL2 Non-Power of 2 texture conformance test.</title> 12 <link rel="stylesheet" href="../../../resources/js-test-style.css"/> 13 <script src="../../../js/js-test-pre.js"></script> 14 <script src="../../../js/webgl-test-utils.js"></script> 15 </head> 16 <body> 17 <canvas id="example" width="5" height="3" 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 "use strict"; 42 description(document.title); 43 var wtu = WebGLTestUtils; 44 var gl = wtu.create3DContext("example", undefined, 2); 45 var program = wtu.setupTexturedQuad(gl); 46 47 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); 48 49 var tests = [ 50 { format: gl.RGBA, 51 type: gl.UNSIGNED_BYTE, 52 color: [192, 0, 128, 64], 53 expected: [192, 0, 128, 64], 54 tolerance: 0, 55 }, 56 { format: gl.RGB, 57 type: gl.UNSIGNED_BYTE, 58 color: [192, 0, 128], 59 expected: [192, 0, 128, 255], 60 tolerance: 0, 61 }, 62 { format: gl.LUMINANCE, 63 type: gl.UNSIGNED_BYTE, 64 color: [192], 65 expected: [192, 192, 192, 255], 66 tolerance: 0, 67 }, 68 { format: gl.ALPHA, 69 type: gl.UNSIGNED_BYTE, 70 color: [64], 71 expected: [0, 0, 0, 64], 72 tolerance: 0, 73 }, 74 { format: gl.LUMINANCE_ALPHA, 75 type: gl.UNSIGNED_BYTE, 76 color: [192, 64], 77 expected: [192, 192, 192, 64], 78 tolerance: 0, 79 }, 80 ]; 81 82 tests.forEach(function(test) { 83 debug(""); 84 debug("test " + wtu.glEnumToString(gl, test.format) + "/" + wtu.glEnumToString(gl, test.type)); 85 var tex = gl.createTexture(); 86 87 // Check that an NPOT texture not on level 0 does not generate INVALID_VALUE 88 wtu.fillTexture(gl, tex, 5, 3, test.color, 1, test.format, test.type); 89 wtu.glErrorShouldBe(gl, gl.NO_ERROR, 90 "gl.texImage2D with NPOT texture with level > 0 should succeed"); 91 92 // Check that an NPOT texture on level 0 succeeds 93 wtu.fillTexture(gl, tex, 5, 3, test.color, 0, test.format, test.type); 94 wtu.glErrorShouldBe(gl, gl.NO_ERROR, 95 "gl.texImage2D with NPOT texture at level 0 should succeed"); 96 97 // Check that generateMipmap succeeds on NPOT 98 gl.generateMipmap(gl.TEXTURE_2D); 99 wtu.glErrorShouldBe(gl, gl.NO_ERROR, 100 "gl.generateMipmap with NPOT texture should succeed"); 101 102 // Check that nothing is drawn if filtering is not correct for NPOT 103 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); 104 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST); 105 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT); 106 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT); 107 108 wtu.clearAndDrawUnitQuad(gl); 109 wtu.checkCanvas( 110 gl, test.expected, 111 "NPOT texture with TEXTURE_WRAP set to REPEAT should draw"); 112 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); 113 114 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); 115 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); 116 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST_MIPMAP_LINEAR); 117 118 wtu.clearAndDrawUnitQuad(gl); 119 wtu.checkCanvas( 120 gl, test.expected, 121 "NPOT texture with TEXTURE_MIN_FILTER not NEAREST or LINEAR should draw"); 122 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); 123 124 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR); 125 126 wtu.clearAndDrawUnitQuad(gl); 127 wtu.checkCanvas( 128 gl, test.expected, 129 "NPOT texture with TEXTURE_MIN_FILTER set to LINEAR should draw."); 130 131 gl.copyTexImage2D(gl.TEXTURE_2D, 1, test.format, 0, 0, 5, 3, 0); 132 wtu.glErrorShouldBe(gl, gl.NO_ERROR, 133 "copyTexImage2D with NPOT texture with level > 0 should succeed."); 134 135 // Check that generateMipmap for an POT texture succeeds 136 wtu.fillTexture(gl, tex, 2, 2, test.color, 0, test.format); 137 gl.generateMipmap(gl.TEXTURE_2D); 138 wtu.glErrorShouldBe(gl, gl.NO_ERROR, 139 "gl.texImage2D and gl.generateMipmap with POT texture at level 0 should succeed"); 140 141 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR); 142 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR); 143 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT); 144 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT); 145 146 wtu.clearAndDrawUnitQuad(gl); 147 wtu.checkCanvas( 148 gl, test.expected, 149 "POT texture with TEXTURE_MIN_FILTER set to LINEAR_MIPMAP_LINEAR should draw."); 150 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); 151 }); 152 153 var successfullyParsed = true; 154 155 </script> 156 <script src="../../../js/js-test-post.js"></script> 157 158 </body> 159 </html>