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59 lines
2.0 KiB
C
59 lines
2.0 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* This header file is designed to be included into your program
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* to support delayed loading of opengl and if needed use of Mesa
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* in cases where the users computer does not support OpenGL 3.2
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* natively.
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*
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* To use this class you must
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*
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* 1) Build VTK with the advanced cmake option VTK_USE_OPENGL_DELAYED_LOAD
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* turned on.
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*
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* 2) Include this file in your application and call HandleOpenGL32Issues
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* before you do any rendering or anything that would cause opengl
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* to be used. Ideally do this right at the beginning of your program.
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*
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* 3) Make sure you include vtkTestOpenGLVersion.exe with your application
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* and pass the fullpath to it as the first argument to HandleOpenGL32Issues
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*
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* 4) Make sure you include the Mesa libraries with your application. Typically
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* this means opengl32.dll swrAVX.dll swrAVX2.dll and graw.dll. Pass the path
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* to these libraries as the second argument to HandleOpenGL32Issues
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*/
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#include <windows.h>
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// returns an int, zero indicates a problem though right now
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// all paths return 1.
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int HandleOpenGL32Issues(const char* pathToTestOpenGLExecutable, const char* mesaLibPath)
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{
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// run the test executable and collect the result
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int result = system(pathToTestOpenGLExecutable);
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// if the default works then just return
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if (result == 0)
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{
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return 1;
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}
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// otherwise set the dll path so that mesa willbe loaded
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SetDllDirectory(mesaLibPath);
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return 1;
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}
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// VTK-HeaderTest-Exclude: vtkTestOpenGLVersion.h
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