SoGLShader.h

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/*************************************************************************************
**
** Copyright 2007, MeVis Medical Solutions AG
**
** The user may use this file in accordance with the license agreement provided with
** the Software or, alternatively, in accordance with the terms contained in a
** written agreement between the user and MeVis Medical Solutions AG.
**
** For further information use the contact form at https://www.mevislab.de/contact
**
**************************************************************************************/
 
#ifndef SO_GLSHADER_H
#define SO_GLSHADER_H
 
 
 
#include "SoShaderSystem.h"
#include <Inventor/SbBasic.h>
#include <mlOpenGL.h>
 
#define SOSHADER_CORE_GLSL_VERSION 140
 
SoEXTENDER class INVENTOR_SHADER_API SoGLShader
{
   public:
 
      static SbBool  isSupported();
 
      static bool supportsGeometryShaders();
 
      static void    printCapabilities();
 
   protected:
 
      SoGLShader();
 
      virtual ~SoGLShader() {}
 
      virtual void   reset();
 
      void           errClear(const char *string = nullptr) const;
      void           errCheck(const char *string = nullptr) const;
      inline SbBool  error(const char *string = nullptr) const {
         errCheck(string); return _openGLError != GL_NO_ERROR;
      }
 
   private:
 
      static int     _isSupported;
 
      mutable GLenum _openGLError;
};
 
#endif  // _SO_GL_SHADER_