| <!-- |
| Copyright (c) 2019 The Khronos Group Inc. |
| Use of this source code is governed by an MIT-style license that can be |
| found in the LICENSE.txt file. |
| --> |
| |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>GLSL out-of-range texture offset test</title> |
| <link rel="stylesheet" href="../../resources/js-test-style.css"/> |
| <script src="../../js/js-test-pre.js"></script> |
| <script src="../../js/webgl-test-utils.js"></script> |
| <script src="../../js/glsl-conformance-test.js"></script> |
| </head> |
| <body> |
| <div id="description"></div> |
| <div id="console"></div> |
| <script id="vshaderInvalidOffset" type="x-shader/x-vertex">#version 300 es |
| in vec4 a_position; |
| in vec2 a_in0; |
| out vec2 v_texCoord; |
| |
| void main() |
| { |
| gl_Position = a_position; |
| v_texCoord = a_in0; |
| } |
| </script> |
| <script id="fshaderInvalidOffset" type="x-shader/x-fragment">#version 300 es |
| precision mediump float; |
| |
| in vec2 v_texCoord; |
| out vec4 my_FragColor; |
| uniform sampler2D u_sampler; |
| uniform int x; |
| |
| void main() { |
| my_FragColor = textureOffset(u_sampler, v_texCoord, ivec2(0, $(yoffset))); |
| } |
| </script> |
| <script type="application/javascript"> |
| "use strict"; |
| description("Out-of-range texture offset should not compile."); |
| |
| var wtu = WebGLTestUtils; |
| |
| var vshader = wtu.getScript('vshaderInvalidOffset'); |
| var fshaderTemplate = wtu.getScript('fshaderInvalidOffset'); |
| |
| var gl = wtu.create3DContext(undefined, undefined, 2); |
| |
| if (!gl) { |
| testFailed("Unable to initialize WebGL 2.0 context."); |
| } else { |
| var minOffset = gl.getParameter(gl.MIN_PROGRAM_TEXEL_OFFSET); |
| var maxOffset = gl.getParameter(gl.MAX_PROGRAM_TEXEL_OFFSET); |
| |
| var shaderSrcValidMin = wtu.replaceParams(fshaderTemplate, {'yoffset': minOffset}); |
| var shaderSrcValidMax = wtu.replaceParams(fshaderTemplate, {'yoffset': maxOffset}); |
| var shaderSrcBelowMin = wtu.replaceParams(fshaderTemplate, {'yoffset': (minOffset - 1)}); |
| var shaderSrcAboveMax = wtu.replaceParams(fshaderTemplate, {'yoffset': (maxOffset + 1)}); |
| var shaderSrcDynamic = wtu.replaceParams(fshaderTemplate, {'yoffset': 'x'}); |
| |
| GLSLConformanceTester.runTests([ |
| { |
| vShaderSource: vshader, |
| fShaderSource: shaderSrcValidMin, |
| fShaderSuccess: true, |
| linkSuccess: true, |
| passMsg: 'Minimum in-range texture offset should compile' |
| }, |
| { |
| vShaderSource: vshader, |
| fShaderSource: shaderSrcValidMax, |
| fShaderSuccess: true, |
| linkSuccess: true, |
| passMsg: 'Maximum in-range texture offset should compile' |
| }, |
| { |
| vShaderSource: vshader, |
| fShaderSource: shaderSrcBelowMin, |
| fShaderSuccess: false, |
| linkSuccess: false, |
| passMsg: 'Texture offset below minimum valid value should not compile' |
| }, |
| { |
| vShaderSource: vshader, |
| fShaderSource: shaderSrcAboveMax, |
| fShaderSuccess: false, |
| linkSuccess: false, |
| passMsg: 'Texture offset above maximum valid value should not compile' |
| }, |
| { |
| vShaderSource: vshader, |
| fShaderSource: shaderSrcDynamic, |
| fShaderSuccess: false, |
| linkSuccess: false, |
| passMsg: 'Dynamic texture offset should not compile' |
| } |
| ], 2); |
| } |
| </script> |
| </body> |
| </html> |
