ScreenGrabInt.H

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#ifndef SCREENGRABINT_H
#define SCREENGRABINT_H

// Gluebase includes
#define OUTSIDE_GLUE_CORE
#include <fsa/fsa.H>
#include <dev/buttons.H>
#include <config/config.H>
#include <std/hash.H>


#include "DrawMgr.H"
#include "Texture.H"
#include "ISVREngine.H"

namespace InSpace {

class ScreenGrab
{
 public:
  
  ScreenGrab() { 
    _grabOne = 0; 
    _grabContinuous = 0;
    _startx = 0;
    _starty = 0;
    _width  = ISVREngine::instance()->displayWidthPixels();
    _height = ISVREngine::instance()->displayHeightPixels();
    _index = 1;
  };

  virtual ~ScreenGrab() {};

  void grabNextFrame() { _grabOne = 1; }
  void toggleContinuousGrab() { _grabContinuous = !_grabContinuous; }


  // call once each frame after all drawing has completed
  void frameDone() {
    if ((_grabOne) || (_grabContinuous)) {
      cout << "Saving frame buffer:" << endl;
      
      // set which GL buffer to read from..  
      //glReadBuffer();

      int context = ISVREngine::instance()->currentGlContext();
      int node = CONFIGval("CLUSTER_NODE_ID",0,false);

      char s[256];      
      if (_index < 10)
    sprintf(s,"screengrab%d_%d_000%d.tga",node,context,_index);
      else if (_index < 100)
    sprintf(s,"screengrab%d_%d_00%d.tga",node,context,_index);
      else if (_index < 1000)
    sprintf(s,"screengrab%d_%d_0%d.tga",node,context,_index);
      else
    sprintf(s,"screengrab%d_%d_%d.tga",node,context,_index);
      
      Texture *t = new Texture(s,TEX_RGB,_width,_height);
      glReadPixels(_startx,_starty,_width,_height,GL_RGB,GL_FLOAT,
           t->pixelPtr(0,0));
      t->save(s);

      _grabOne = 0;
      _index++;
    }
  }

 protected:

  int _grabOne;
  int _grabContinuous;
  int _startx;
  int _starty;
  int _width;
  int _height;
  int _index;
};


class ScreenGrabInt : public Interactor<ScreenGrabInt>
{
 public:

  ScreenGrabInt(ScreenGrab *sc);
  virtual ~ScreenGrabInt() {}
  
 protected:

  void grab_single_frame(cEVENTbtnptr &evt, STATE *&);
  void toggle_cont_grab(cEVENTbtnptr &evt, STATE *&);

  EVENTbtnptr _grabsinglebtn;
  EVENTbtnptr _contgrabbtn;

  ScreenGrab *_screenGrab;

};

} // namespace
#endif

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