path: root/libvo/vo_directfb2.c

/*
   MPlayer video driver for DirectFramebuffer device
  
   (C) 2002
   
   Written by  Jiri Svoboda <Jiri.Svoboda@seznam.cz>

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, write to the
   Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.
*/

// directfb includes

#include <directfb.h>

// other things

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#ifdef __linux__
#include <sys/kd.h>
#else
#include <linux/kd.h>
#endif

#include "config.h"
#include "video_out.h"
#include "video_out_internal.h"
#include "fastmemcpy.h"
#include "sub.h"
#include "mp_msg.h"
#include "aspect.h"
#include "subopt-helper.h"

#ifndef min
#define min(x,y) (((x)<(y))?(x):(y))
#endif

#if DIRECTFBVERSION > 917
// triple buffering
#define TRIPLE 1
#endif

static vo_info_t info = {
	"Direct Framebuffer Device",
	"directfb",
	"Jiri Svoboda Jiri.Svoboda@seznam.cz",
	"v 2.0 (for DirectFB version >=0.9.13)"
};

LIBVO_EXTERN(directfb)

extern int verbose;

/******************************
*      vo_directfb globals    *
******************************/

#define DFBCHECK(x...)                                         \
  {                                                            \
    DFBResult err = x;                                         \
                                                               \
    if (err != DFB_OK)                                         \
      {                                                        \
        fprintf( stderr, "%s <%d>:\n\t", __FILE__, __LINE__ ); \
        DirectFBErrorFatal( #x, err );                         \
      }                                                        \
  }

 /*
 *  filled by preinit
 */

// main DirectFB handle
static IDirectFB *dfb = NULL;
// keyboard handle
static IDirectFBInputDevice *keyboard = NULL;
// A buffer for input events.
static IDirectFBEventBuffer *buffer = NULL;

 /*
 *  filled during config
 */

// handle of used layer
static IDirectFBDisplayLayer *layer = NULL;
// surface of used layer
static IDirectFBSurface *primary = NULL;
static int primarylocked = 0;
// handle of temporary surface (if used)
static IDirectFBSurface *frame = NULL;
static int framelocked = 0;
// flipping mode flag (layer/surface)
static int flipping = 0; 
// tvnorm
static int tvnorm = -1;
// scaling flag
static int stretch = 0;
// pictrure position
static int xoffset=0,yoffset=0;
// picture size
static int out_width=0,out_height=0;
// frame/primary size
static int width=0,height=0;
// frame primary format
DFBSurfacePixelFormat pixel_format;
/*
static void (*draw_alpha_p)(int w, int h, unsigned char *src,
		unsigned char *srca, int stride, unsigned char *dst,
		int dstride);
*/

/******************************
* cmd line parameteres        *
******************************/

/* command line/config file options */
static int layer_id = -1;
static int buffer_mode = 1;
static int use_input = 1;
static int field_parity = -1;

/******************************
*	   implementation     *
******************************/

void unlock() {
if (frame && framelocked) frame->Unlock(frame);
if (primary && primarylocked) primary->Unlock(primary);
}

static int get_parity(strarg_t *arg) {
  if (strargcmp(arg, "top") == 0)
    return 0;
  if (strargcmp(arg, "bottom") == 0)
    return 1;
  return -1;
}

static int check_parity(void *arg) {
  return get_parity(arg) != -1;
}

static int get_mode(strarg_t *arg) {
  if (strargcmp(arg, "single") == 0)
    return 1;
  if (strargcmp(arg, "double") == 0)
    return 2;
  if (strargcmp(arg, "triple") == 0)
    return 3;
  return 0;
}

static int check_mode(void *arg) {
  return get_mode(arg) != 0;
}

static uint32_t preinit(const char *arg)
{
    DFBResult ret;
    strarg_t mode_str = {0, NULL};
    strarg_t par_str = {0, NULL};
    strarg_t dfb_params = {0, NULL};
    opt_t subopts[] = {
      {"input",       OPT_ARG_BOOL, &use_input,  NULL},
      {"buffermode",  OPT_ARG_STR,  &mode_str,   check_mode},
      {"fieldparity", OPT_ARG_STR,  &par_str,    check_parity},
      {"layer",       OPT_ARG_INT,  &layer_id,   NULL},
      {"dfbopts",     OPT_ARG_STR,  &dfb_params, NULL},
      {NULL}
    };

    mp_msg(MSGT_VO, MSGL_INFO,"DirectFB: Preinit entered\n");

    if (dfb) return 0; // we are already inited!

    // set defaults
    buffer_mode = 1 + vo_doublebuffering; // honor -double switch
    layer_id = -1;
    use_input = 1;
    field_parity = -1;
     if (subopt_parse(arg, subopts) != 0) {
               mp_msg( MSGT_VO, MSGL_ERR,
                       "\n-vo directfb command line help:\n"
                       "Example: mplayer -vo directfb:layer=1:buffermode=single\n"
                       "\nOptions (use 'no' prefix to disable):\n"
                       "  input  Use DirectFB for keyboard input\n"
                       "\nOther options:\n"
                       "  layer=n\n"
                       "    n=0..xx   Use layer with id n for output (0=primary)\n"
                       "  buffermode=(single|double|triple)\n"
                       "    single   Use single buffering\n"
                       "    double   Use double buffering\n"
                       "    triple   Use triple buffering\n"
                       "  fieldparity=(top|bottom)\n"
                       "    top      Top field first\n"
                       "    bottom   Bottom field first\n"
		       "  dfbopts=<str>\n"
		       "    Specify a parameter list for DirectFB\n"
                       "\n" );
               return -1;
     }
    if (mode_str.len)
      buffer_mode = get_mode(&mode_str);
    if (par_str.len)
      field_parity = get_parity(&par_str);


	if (dfb_params.len > 0)
	{
	    int argc = 2;
	    char arg0[10] = "mplayer";
	    char *arg1 = (char *)malloc(dfb_params.len + 7);
	    char* argv[3];
	    char ** a;
	    
	    a = &argv[0];
	    
	    strcpy(arg1, "--dfb:");
	    strncat(arg1, dfb_params.str, dfb_params.len);

	    argv[0]=arg0;
	    argv[1]=arg1;
	    argv[2]=NULL;
	    
    	    DFBCHECK (DirectFBInit (&argc,&a));

	    free(arg1);
	} else {
	
        DFBCHECK (DirectFBInit (NULL,NULL));
	}

	if (((directfb_major_version <= 0) &&
	    (directfb_minor_version <= 9) &&
	    (directfb_micro_version < 13)))
	{
	    mp_msg(MSGT_VO, MSGL_ERR,"DirectFB: Unsupported DirectFB version\n");	
	    return 1;
	}

  /*
   * (set options)
   */
	
//	uncomment this if you do not wish to create a new vt for DirectFB
//        DFBCHECK (DirectFBSetOption ("no-vt-switch",""));

//	uncomment this if you want to allow vt switching
//       DFBCHECK (DirectFBSetOption ("vt-switching",""));

//	uncomment this if you want to hide gfx cursor (req dfb