mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
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28f2574bc5
This introduces an internal glLoader library which allows most of the implementation to be agnostic about the implementation of the GL loading library. Specifically, this removes references to the GLEW headers and libraries from the rest of the source code and build system.
69 lines
2.0 KiB
C++
69 lines
2.0 KiB
C++
//
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// Copyright 2015 Pixar
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//
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// Licensed under the Apache License, Version 2.0 (the "Apache License")
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// with the following modification; you may not use this file except in
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// compliance with the Apache License and the following modification to it:
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// Section 6. Trademarks. is deleted and replaced with:
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//
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// 6. Trademarks. This License does not grant permission to use the trade
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// names, trademarks, service marks, or product names of the Licensor
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// and its affiliates, except as required to comply with Section 4(c) of
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// the License and to reproduce the content of the NOTICE file.
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//
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// You may obtain a copy of the Apache License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the Apache License with the above modification is
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// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the Apache License for the specific
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// language governing permissions and limitations under the Apache License.
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//
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#ifndef OPENSUBDIV_EXAMPLES_GL_UTILS_H
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#define OPENSUBDIV_EXAMPLES_GL_UTILS_H
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#include "glLoader.h"
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#include <cstdio>
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#include <string>
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#include <iostream>
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namespace GLUtils {
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void InitializeGL();
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void SetMinimumGLVersion(int argc=0, char **argv=NULL);
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void PrintGLVersion();
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void CheckGLErrors(std::string const & where = "");
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GLuint CompileShader(GLenum shaderType, const char *source);
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void WriteScreenshot(int width, int height);
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bool SupportsAdaptiveTessellation();
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// Helper function that parses the opengl version string, retrieving the
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// major and minor version from it.
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void GetMajorMinorVersion(int *major, int *minor);
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// Gets the shader version based on the current opengl version and returns
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// it in a string form.
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std::string GetShaderVersion();
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std::string GetShaderVersionInclude();
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bool GL_ARBSeparateShaderObjectsOrGL_VERSION_4_1();
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bool GL_ARBComputeShaderOrGL_VERSION_4_3();
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};
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#endif // OPENSUBDIV_EXAMPLES_GL_UTILS_H
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