texture-offset-out-of-range.html (3188B)
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>GLSL out-of-range texture offset 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 <script src="../../js/glsl-conformance-test.js"></script> 16 </head> 17 <body> 18 <div id="description"></div> 19 <div id="console"></div> 20 <script id="vshaderInvalidOffset" type="x-shader/x-vertex">#version 300 es 21 in vec4 a_position; 22 in vec2 a_in0; 23 out vec2 v_texCoord; 24 25 void main() 26 { 27 gl_Position = a_position; 28 v_texCoord = a_in0; 29 } 30 </script> 31 <script id="fshaderInvalidOffset" type="x-shader/x-fragment">#version 300 es 32 precision mediump float; 33 34 in vec2 v_texCoord; 35 out vec4 my_FragColor; 36 uniform sampler2D u_sampler; 37 uniform int x; 38 39 void main() { 40 my_FragColor = textureOffset(u_sampler, v_texCoord, ivec2(0, $(yoffset))); 41 } 42 </script> 43 <script type="application/javascript"> 44 "use strict"; 45 description("Out-of-range texture offset should not compile."); 46 47 var wtu = WebGLTestUtils; 48 49 var vshader = wtu.getScript('vshaderInvalidOffset'); 50 var fshaderTemplate = wtu.getScript('fshaderInvalidOffset'); 51 52 var gl = wtu.create3DContext(undefined, undefined, 2); 53 54 if (!gl) { 55 testFailed("Unable to initialize WebGL 2.0 context."); 56 } else { 57 var minOffset = gl.getParameter(gl.MIN_PROGRAM_TEXEL_OFFSET); 58 var maxOffset = gl.getParameter(gl.MAX_PROGRAM_TEXEL_OFFSET); 59 60 var shaderSrcValidMin = wtu.replaceParams(fshaderTemplate, {'yoffset': minOffset}); 61 var shaderSrcValidMax = wtu.replaceParams(fshaderTemplate, {'yoffset': maxOffset}); 62 var shaderSrcBelowMin = wtu.replaceParams(fshaderTemplate, {'yoffset': (minOffset - 1)}); 63 var shaderSrcAboveMax = wtu.replaceParams(fshaderTemplate, {'yoffset': (maxOffset + 1)}); 64 var shaderSrcDynamic = wtu.replaceParams(fshaderTemplate, {'yoffset': 'x'}); 65 66 GLSLConformanceTester.runTests([ 67 { 68 vShaderSource: vshader, 69 fShaderSource: shaderSrcValidMin, 70 fShaderSuccess: true, 71 linkSuccess: true, 72 passMsg: 'Minimum in-range texture offset should compile' 73 }, 74 { 75 vShaderSource: vshader, 76 fShaderSource: shaderSrcValidMax, 77 fShaderSuccess: true, 78 linkSuccess: true, 79 passMsg: 'Maximum in-range texture offset should compile' 80 }, 81 { 82 vShaderSource: vshader, 83 fShaderSource: shaderSrcBelowMin, 84 fShaderSuccess: false, 85 linkSuccess: false, 86 passMsg: 'Texture offset below minimum valid value should not compile' 87 }, 88 { 89 vShaderSource: vshader, 90 fShaderSource: shaderSrcAboveMax, 91 fShaderSuccess: false, 92 linkSuccess: false, 93 passMsg: 'Texture offset above maximum valid value should not compile' 94 }, 95 { 96 vShaderSource: vshader, 97 fShaderSource: shaderSrcDynamic, 98 fShaderSuccess: false, 99 linkSuccess: false, 100 passMsg: 'Dynamic texture offset should not compile' 101 } 102 ], 2); 103 } 104 </script> 105 </body> 106 </html>