zoneminder/src/zm_camera.cpp

//
// ZoneMinder Camera Class Implementation, $Date$, $Revision$
// Copyright (C) 2001-2008 Philip Coombes
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//

#include "zm.h"
#include "zm_camera.h"

Camera::Camera(
    unsigned int p_monitor_id,
    SourceType p_type,
    unsigned int p_width,
    unsigned int p_height,
    int p_colours,
    int p_subpixelorder,
    int p_brightness,
    int p_contrast,
    int p_hue,
    int p_colour,
    bool p_capture,
    bool p_record_audio
    ) :
    monitor_id(p_monitor_id),
    type(p_type),
    width(p_width),
    height(p_height),
    colours(p_colours),
    subpixelorder(p_subpixelorder),
    brightness(p_brightness),
    hue(p_hue),
    colour(p_colour),
    contrast(p_contrast),
    capture(p_capture),
    record_audio(p_record_audio),
    bytes(0)
{
  pixels = width * height;
  imagesize = pixels * colours;

  Debug(2,"New camera id: %d width: %d height: %d colours: %d subpixelorder: %d capture: %d",
      monitor_id,width,height,colours,subpixelorder,capture);

  /* Because many loops are unrolled and work on 16 colours/time or 4 pixels/time, we have to meet requirements */
  if ( (colours == ZM_COLOUR_GRAY8 || colours == ZM_COLOUR_RGB32) && (imagesize % 64) != 0 ) {
    Fatal("Image size is not multiples of 64");
  } else if ( colours == ZM_COLOUR_RGB24 && ((imagesize % 64) != 0 || (imagesize % 12) != 0) ) {
    Fatal("Image size is not multiples of 12 and 64");
  }
  monitor = NULL;
}

Camera::~Camera() {
}

Monitor *Camera::getMonitor() {
  if ( ! monitor )
    monitor = Monitor::Load(monitor_id, false, Monitor::QUERY);
  return monitor;
}

void Camera::setMonitor(Monitor *p_monitor) {
  monitor = p_monitor;
  monitor_id = monitor->Id();
}