- Reestructuración de ficheros y directorios general

- merge v0.01 --> Añadido fileselector
- Añadidas fuentes de Gem y Pure Data
- pix2jpg incluído en Gem. Archivos de construcción de Gem modificados.
- Añadido fichero ompiling.txt con instrucciones de compilación

Gem/plugins/videoV4L2/videoV4L2.h

@@ -0,0 +1,193 @@
+/*-----------------------------------------------------------------
+
+GEM - Graphics Environment for Multimedia
+
+Load an video into a pix block
+
+Copyright (c) 1997-1999 Mark Danks. mark@danks.org
+Copyright (c) Günther Geiger. geiger@epy.co.at
+Copyright (c) 2001-2011 IOhannes m zmölnig. forum::für::umläute. IEM. zmoelnig@iem.at
+For information on usage and redistribution, and for a DISCLAIMER OF ALL
+WARRANTIES, see the file, "GEM.LICENSE.TERMS" in this distribution.
+
+-----------------------------------------------------------------*/
+
+#ifndef _INCLUDE_GEMPLUGIN__VIDEOV4L2_VIDEOV4L2_H_
+#define _INCLUDE_GEMPLUGIN__VIDEOV4L2_VIDEOV4L2_H_
+
+#include "plugins/videoBase.h"
+
+#if defined HAVE_LIBV4L2 && !defined HAVE_VIDEO4LINUX2
+# define HAVE_VIDEO4LINUX2
+#endif
+
+
+#ifdef HAVE_VIDEO4LINUX2
+# ifdef HAVE_LIBV4L2
+#  include <libv4l2.h>
+# endif /* HAVE_LIBV4L2 */
+
+# include <map>
+
+# include <stdio.h>
+# include <stdlib.h>
+//# include <stdarg.h>
+# include <unistd.h>
+# include <string.h>
+//# include <ctype.h>
+# include <fcntl.h>
+# include <errno.h>
+# include <sys/ioctl.h>
+//# include <sys/types.h>
+//# include <sys/time.h>
+# include <asm/types.h>
+# include <linux/videodev2.h>
+# include <sys/mman.h>
+#ifdef HAVE_PTHREADS
+/* the bad thing is, that we currently don't have any alternative to using PTHREADS
+ * LATER: make threading optional
+ *        (or at least disabled capturing when no pthreads are available)
+ */
+# include <pthread.h>
+#endif
+# define V4L2_DEVICENO 0
+/* request 4 buffers (but if less are available, it's fine too... */
+# define V4L2_NBUF 4
+
+
+struct t_v4l2_buffer {
+  void *                  start;
+  size_t                  length;
+};
+
+
+#endif
+/*-----------------------------------------------------------------
+  -------------------------------------------------------------------
+  CLASS
+  pix_video
+
+  Loads in a video
+
+  KEYWORDS
+  pix
+
+  DESCRIPTION
+
+  "dimen" (int, int) - set the x,y dimensions
+  "zoom" (int, int) - the zoom factor (1.0 is nominal) (num / denom)
+  "bright" (int) - the brightnes
+  "contrast" (int) - the contrast
+  "hue" (int) - the hue
+  "sat" (int) - the saturation
+
+  -----------------------------------------------------------------*/
+namespace gem { namespace plugins {
+ class GEM_EXPORT videoV4L2 : public videoBase {
+ public:
+  //////////
+  // Constructor
+  videoV4L2(void);
+
+  //////////
+  // Destructor
+  virtual ~videoV4L2(void);
+
+#ifdef HAVE_VIDEO4LINUX2
+  ////////
+  // open the video-device
+  virtual bool           openDevice(gem::Properties&writeprops);
+  virtual void          closeDevice(void);
+
+  //////////
+  // Start up the video device
+  // [out] int - returns 0 if bad
+  virtual bool	    	startTransfer(void);
+  //////////
+  // Stop the video device
+  // [out] int - returns 0 if bad
+  virtual bool	   	stopTransfer(void);
+
+  //////////////////
+  // restart the transfer if it is currently running
+  virtual bool          restartTransfer(void);
+
+  //////////
+  // get the next frame
+  virtual pixBlock    *getFrame(void);
+
+
+  //////////
+  // Set the video properties
+  virtual bool	    	setColor(int);
+
+  virtual std::vector<std::string>enumerate(void);
+
+  virtual bool enumProperties(gem::Properties&readable,
+			      gem::Properties&writeable);
+  virtual void setProperties(gem::Properties&writeprops);
+  virtual void getProperties(gem::Properties&readprops);
+
+ protected:
+
+  //-----------------------------------
+  // GROUP:	Linux specific video data
+  //-----------------------------------
+
+
+  int m_gotFormat; // the format returned by the v4l2-device (not an openGL-format!)
+  bool m_colorConvert; // do we have to convert the colour-space manually ?
+
+
+  int m_tvfd;
+
+  struct t_v4l2_buffer*m_buffers;
+  int  m_nbuffers;
+  void*m_currentBuffer;
+
+  int m_frame, m_last_frame;
+
+  //////////////////
+  // capabilities of the device
+  int m_maxwidth;
+  int m_minwidth;
+  int m_maxheight;
+  int m_minheight;
+
+  //////////
+  // the capturing thread
+  pthread_t m_thread_id;
+  bool      m_continue_thread;
+  bool      m_frame_ready;
+
+  /* capture frames (in a separate thread! */
+  void*capturing(void);
+  /* static callback for pthread_create: calls capturing() */
+  static void*capturing_(void*);
+
+  int       init_mmap(void);
+
+  // rendering might be needed when we are currently not capturing because we cannot (e.g: couldn't open device)
+  // although we should. when reopening another device, we might be able to render again...
+  // example: we have only 1 video-device /dev/video0;
+  // when we try to open /dev/video1 we fail, and m_capturing is set to 0
+  // now when rendering is turned on and we want to switch back to /dev/video0 we should reconnect to the good device
+  bool      m_rendering; // "true" when rendering is on, false otherwise
+
+  /* use this in the capture-thread to cleanup */
+  bool      m_stopTransfer;
+
+  /* internal housekeeping of properties */
+  void addProperties(struct v4l2_queryctrl queryctrl,
+		     gem::Properties&readable,
+		     gem::Properties&writeable);
+  std::map<std::string, struct v4l2_queryctrl>m_readprops, m_writeprops;
+  struct v4l2_capability m_caps;
+
+  __u32 m_frameSize; // the size of a v4l2 frame
+
+#endif /* HAVE_VIDEO4LINUX2 */
+  };
+};};
+
+#endif	// for header file