/* ------------------------------------------------------------------
 * GEM - Graphics Environment for Multimedia
 *
 * SPDX-FileCopyrightText: © 2002, IOhannes m zmölnig and the GEM contributors
 * SPDX-License-Identifier: GPL-2.0-or-later
 *
 * this file has been generated...
 * ------------------------------------------------------------------
 */

#ifndef _INCLUDE__GEM_OPENGL_GEMGLDRAWELEMENTS_H_
#define _INCLUDE__GEM_OPENGL_GEMGLDRAWELEMENTS_H_

#include "Base/GemGLBase.h"

/*
 CLASS
        GEMglDrawElements
 KEYWORDS
        openGL  1
 DESCRIPTION
        wrapper for the openGL-function
        "glDrawElements( GLenum mode, GLsizei count, GLenum type, GLvoid *indices)"
 */

class GEM_EXTERN GEMglDrawElements : public GemGLBase
{
  CPPEXTERN_HEADER(GEMglDrawElements, GemGLBase);

public:
  // Constructor
  GEMglDrawElements (t_float, t_float, t_float);        // CON

protected:
  // Destructor
  virtual ~GEMglDrawElements ();
  // check extensions
  virtual bool isRunnable(void);

  // Do the rendering
  virtual void  render (GemState *state);

  // variables
  GLenum        mode;           // VAR
  virtual void  modeMess(t_float);      // FUN

  GLsizei       count;          // VAR
  virtual void  countMess(t_float);     // FUN

  GLenum        type;           // VAR
  virtual void  typeMess(t_float);      // FUN

  GLuint        *indices_ui;            // VAR
  GLubyte       *indices_ub;            // VAR
  GLushort      *indices_us;            // VAR
  int           len;

  virtual void  indicesMess(int, t_atom*);      // FUN


private:

  // we need some inlets
  t_inlet *m_inlet[4];

  // static member functions
  static void    modeMessCallback (void*, t_float);
  static void    countMessCallback (void*, t_float);
  static void    typeMessCallback (void*, t_float);
  static void    indicesMessCallback (void*, t_symbol*, int, t_atom*);
};
#endif // for header file
