| <!-- |
| 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>WebGL GLSL Conformance Tests</title> |
| <link rel="stylesheet" href="../../../resources/js-test-style.css"/> |
| <link rel="stylesheet" href="../../../resources/glsl-feature-tests.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="fshaderWithHighPrecision" type="text/something-not-javascript"> |
| precision highp float; |
| uniform vec4 constantColor; |
| |
| void main() |
| { |
| gl_FragColor = constantColor; |
| } |
| </script> |
| <script id="fshaderWhichCompilesWithHighp" type="text/something-not-javascript"> |
| #ifdef GL_FRAGMENT_PRECISION_HIGH |
| // Something which compiles |
| #else |
| somethingWhichDoesNotCompile(); |
| #endif |
| |
| void main() |
| { |
| gl_FragColor = vec4(0, 0, 0, 1); |
| } |
| </script> |
| <script id="fshaderWhichCompilesWithoutHighp" type="text/something-not-javascript"> |
| #ifndef GL_FRAGMENT_PRECISION_HIGH |
| // Something which compiles |
| #else |
| somethingWhichDoesNotCompile(); |
| #endif |
| |
| void main() |
| { |
| gl_FragColor = vec4(0, 0, 0, 1); |
| } |
| </script> |
| <script> |
| "use strict"; |
| description("Checks that getShaderPrecisionFormat's return value matches whether highp is supported in fragment shaders."); |
| |
| var wtu = WebGLTestUtils; |
| var gl = wtu.create3DContext(); |
| var precision = gl.getShaderPrecisionFormat(gl.FRAGMENT_SHADER, gl.HIGH_FLOAT); |
| var highpSupported = (precision.rangeMin >= 62 && precision.rangeMax >= 62 && precision.precision >= 16); |
| debug("highp is" + (highpSupported ? "" : " not") + " supported in fragment shaders"); |
| |
| GLSLConformanceTester.runTests([ |
| { |
| fShaderId: 'fshaderWithHighPrecision', |
| fShaderSuccess: highpSupported, |
| linkSuccess: highpSupported, |
| passMsg: "getShaderPrecisionFormat's results agree with highp support in fragment shaders", |
| }, |
| { |
| fShaderId: highpSupported ? 'fshaderWhichCompilesWithHighp' : 'fshaderWhichCompilesWithoutHighp', |
| fShaderSuccess: true, |
| linkSuccess: true, |
| passMsg: "getShaderPrecisionFormat's results agree with definition of GL_FRAGMENT_PRECISION_HIGH", |
| }, |
| ]); |
| |
| debug(""); |
| var successfullyParsed = true; |
| </script> |
| </body> |
| </html> |
