/home/rex/ebltrunk/tools/libeblearntools/include/camera_mac.hpp

/***************************************************************************
 *   Copyright (C) 2010 by Pierre Sermanet   *
 *   pierre.sermanet@gmail.com   *
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 *        This product includes software developed at the Courant
 *        Institute of Mathematical Sciences (http://cims.nyu.edu).
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#ifndef CAMERA_MAC_HPP_
#define CAMERA_MAC_HPP_

#ifdef __LINUX__

#include <fcntl.h>              /* low-level i/o */
#include <unistd.h>
#include <errno.h>
#include <malloc.h>

#endif

namespace ebl {

  // constructors & initializations

  template <typename Tdata>
  camera_mac<Tdata>::camera_mac(const char *device, int height_, int width_,
                                  bool grayscale_, bool mode_rgb_)
    : camera<Tdata>(height_, width_), started(false),
      nbuffers(grayscale_ ? 1 : 3), buffers(new void*[nbuffers]),
      sizes(new int[nbuffers]), mode_rgb(mode_rgb_) {
    cout << "Initializing Mac camera from device " << device
         << " to " << height_ << "x" << width_ << endl;
  }
  
  template <typename Tdata>
  camera_mac<Tdata>::~camera_mac() {
    if (buffers)
      delete buffers;
    if (sizes)
      delete sizes;
  }

  // frame grabbing
#ifdef __LINUX__
  template <typename Tdata>
  void camera_mac<Tdata>::start() {
    started = true;
  }
#endif
  template <typename Tdata>
  idx<Tdata> camera_mac<Tdata>::grab() {
    if(mode_rgb) {
      // convert yuv to rgb
      idx<float>  fyuv(height,width,nbuffers);
      idx_copy(frame,fyuv);
      idx<float> frame_frgb(height,width,nbuffers);
      yuv_to_rgb(fyuv ,frame_frgb);
      idx<Tdata> frame_rgb(height,width,nbuffers);
      idx_copy(frame_frgb,frame_rgb);
      frame = frame_rgb;
    }
    frame_id_++;
    return this->postprocess();
  }

} // end namespace ebl

#endif /* CAMERA_MAC_HPP_ */