////////////////////////////////////////////////////////
//
// GEM - Graphics Environment for Multimedia
//
// Implementation file
//
// SPDX-FileCopyrightText: © 2004, James Tittle II and the GEM contributors
// SPDX-License-Identifier: GPL-2.0-or-later
//
////////////////////////////////////////////////////////

#include "GEMglProgramStringARB.h"

CPPEXTERN_NEW_WITH_GIMME ( GEMglProgramStringARB );

/////////////////////////////////////////////////////////
//
// GEMglProgramStringARB
//
/////////////////////////////////////////////////////////
// Constructor
//
GEMglProgramStringARB :: GEMglProgramStringARB  (int argc, t_atom*argv) :
  target(static_cast<GLenum>(0)),
  format(static_cast<GLenum>(0)),
  len(static_cast<GLsizei>(0)),
  string(NULL)
{
  switch (argc) {
  default:
  case 4:
    string = reinterpret_cast<const GLvoid*>(atom_getsymbol(argv+3)->s_name);
  case 3:
    len=atom_getint(argv+2);
  case 2:
    format=atom_getint(argv+1);
  case 1:
    target=atom_getint(argv+0);
  case 0:
    break;
  }

  m_inlet[0] = inlet_new(this->x_obj, &this->x_obj->ob_pd, gensym("float"),
                         gensym("target"));
  m_inlet[1] = inlet_new(this->x_obj, &this->x_obj->ob_pd, gensym("float"),
                         gensym("format"));
  m_inlet[2] = inlet_new(this->x_obj, &this->x_obj->ob_pd, gensym("float"),
                         gensym("len"));
  m_inlet[3] = inlet_new(this->x_obj, &this->x_obj->ob_pd, gensym("symbol"),
                         gensym("string"));
}
/////////////////////////////////////////////////////////
// Destructor
//
GEMglProgramStringARB :: ~GEMglProgramStringARB ()
{
  inlet_free(m_inlet[0]);
  inlet_free(m_inlet[1]);
  inlet_free(m_inlet[2]);
  inlet_free(m_inlet[3]);
}
//////////////////
// extension check
bool GEMglProgramStringARB :: isRunnable(void)
{
  if(GLEW_ARB_vertex_program) {
    return true;
  }
  error("your system does not support the ARB vertex_program extension");
  return false;
}

/////////////////////////////////////////////////////////
// Render
//
void GEMglProgramStringARB :: render(GemState *state)
{
  glProgramStringARB (target, format, len, string);
}

/////////////////////////////////////////////////////////
// Variables
//
void GEMglProgramStringARB :: targetMess (t_float arg1)         // FUN
{
  target = static_cast<GLenum>(arg1);
  setModified();
}

void GEMglProgramStringARB :: formatMess (t_float arg1)         // FUN
{
  format = static_cast<GLenum>(arg1);
  setModified();
}

void GEMglProgramStringARB :: lenMess (t_float arg1)    // FUN
{
  len = static_cast<GLsizei>(arg1);
  setModified();
}

void GEMglProgramStringARB :: stringMess (t_symbol* arg1)       // FUN
{
  string = reinterpret_cast<const GLvoid*>(arg1->s_name);
  setModified();
}


/////////////////////////////////////////////////////////
// static member functions
//

void GEMglProgramStringARB :: obj_setupCallback(t_class *classPtr)
{
  class_addmethod(classPtr,
                  reinterpret_cast<t_method>(&GEMglProgramStringARB::targetMessCallback),
                  gensym("target"), A_DEFFLOAT, A_NULL);
  class_addmethod(classPtr,
                  reinterpret_cast<t_method>(&GEMglProgramStringARB::formatMessCallback),
                  gensym("format"), A_DEFFLOAT, A_NULL);
  class_addmethod(classPtr,
                  reinterpret_cast<t_method>(&GEMglProgramStringARB::lenMessCallback),
                  gensym("len"), A_DEFFLOAT, A_NULL);
  class_addmethod(classPtr,
                  reinterpret_cast<t_method>(&GEMglProgramStringARB::stringMessCallback),
                  gensym("string"), A_DEFSYMBOL, A_NULL);
};

void GEMglProgramStringARB :: targetMessCallback (void* data, t_float arg0)
{
  GetMyClass(data)->targetMess ( arg0 );
}
void GEMglProgramStringARB :: formatMessCallback (void* data, t_float arg1)
{
  GetMyClass(data)->formatMess ( arg1 );
}
void GEMglProgramStringARB :: lenMessCallback (void* data, t_float arg2)
{
  GetMyClass(data)->lenMess ( arg2 );
}
void GEMglProgramStringARB :: stringMessCallback (void* data,
    t_symbol* arg3)
{
  GetMyClass(data)->stringMess ( arg3 );
}
