1 /*****************************************************************************
2 * directfb.c: DirectFB video output display method
3 *****************************************************************************
4 * Copyright (C) 2005 the VideoLAN team
6 * Authors: Iuri Diniz <iuri@digizap.com.br>
8 * This code is based in sdl.c and fb.c, thanks for VideoLAN team.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
28 #include <errno.h> /* ENOMEM */
38 /*****************************************************************************
40 *****************************************************************************/
41 static int Create ( vlc_object_t * );
42 static void Destroy ( vlc_object_t * );
44 static int Init ( vout_thread_t * );
45 static void End ( vout_thread_t * );
46 static int Manage ( vout_thread_t * );
47 static void Display ( vout_thread_t *, picture_t * );
49 static int OpenDisplay ( vout_thread_t * );
50 static void CloseDisplay ( vout_thread_t * );
54 IDirectFB *p_directfb;
55 IDirectFBSurface *p_primary;
56 DFBSurfacePixelFormat p_pixel_format;
64 /*****************************************************************************
66 *****************************************************************************/
68 set_shortname( "DirectFB" );
69 set_category( CAT_VIDEO );
70 set_subcategory( SUBCAT_VIDEO_VOUT );
71 set_description( _("DirectFB video output http://www.directfb.org/") );
72 set_capability( "video output", 60 );
73 add_shortcut( "directfb" );
74 set_callbacks( Create, Destroy );
78 static int Create( vlc_object_t *p_this )
80 vout_thread_t *p_vout = (vout_thread_t *)p_this;
81 vout_sys_t *p_sys = NULL;
82 p_vout->pf_init = Init;
84 p_vout->pf_manage = Manage;
85 p_vout->pf_render = NULL;
86 p_vout->pf_display = Display;
88 /* Allocate structure */
89 p_vout->p_sys = p_sys = malloc( sizeof( vout_sys_t ) );
92 msg_Err( p_vout, "out of memory" );
96 p_sys->p_directfb = NULL;
97 p_sys->p_primary = NULL;
98 p_sys->p_pixels = NULL;
103 if( DirectFBInit(NULL,NULL) != DFB_OK )
105 msg_Err(p_vout, "Cannot init DirectFB");
109 if( OpenDisplay( p_vout ) )
111 msg_Err(p_vout, "Cannot create primary surface");
119 static int Init( vout_thread_t *p_vout )
121 vout_sys_t *p_sys = p_vout->p_sys;
122 IDirectFBSurface *p_primary = (IDirectFBSurface *) p_vout->p_sys->p_primary;
123 byte_t* p_pixels = NULL;
124 picture_t *p_pic = NULL;
125 int i_rlength, i_glength, i_blength;
126 int i_roffset, i_goffset, i_boffset;
131 I_OUTPUTPICTURES = 0;
133 switch( p_sys->p_pixel_format )
136 /* 8 bit RGB (1 byte, red 3@5, green 3@2, blue 2@0) */
137 /* i_pixel_pitch = 1; */
144 p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2');
148 /* 16 bit RGB (2 byte, red 5@11, green 6@5, blue 5@0) */
149 /* i_pixel_pitch = 2; */
156 p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6');
160 /* 24 bit RGB (3 byte, red 8@16, green 8@8, blue 8@0) */
161 /* i_pixel_pitch = 3; */
168 p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4');
172 /* 24 bit RGB (4 byte, nothing@24, red 8@16, green 8@8, blue 8@0) */
173 /* i_pixel_pitch = 4; */
180 p_vout->output.i_chroma = VLC_FOURCC('R','V','3','2');
184 msg_Err( p_vout, "unknown screen depth %i",
185 p_sys->p_pixel_format );
188 /* Set the RGB masks */
189 p_vout->output.i_rmask = ( (1 << i_rlength) - 1 ) << i_roffset;
190 p_vout->output.i_gmask = ( (1 << i_glength) - 1 ) << i_goffset;
191 p_vout->output.i_bmask = ( (1 << i_blength) - 1 ) << i_boffset;
193 /* Width and height */
194 p_vout->output.i_width = p_sys->i_width;
195 p_vout->output.i_height = p_sys->i_height;
198 p_vout->output.i_aspect = (p_sys->i_width * VOUT_ASPECT_FACTOR) /
201 /* Try to initialize 1 buffer */
202 /* Find an empty picture slot */
203 for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
205 if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
207 p_pic = p_vout->p_picture + i_index;
212 /* Allocate the picture */
217 if( p_primary->Lock( p_primary, DSLF_READ, (void **) &p_pixels,
218 &i_line_pitch) != DFB_OK )
221 /* allocate p_pixels */
222 i_size = i_line_pitch * p_sys->i_height;
223 p_sys->p_pixels = malloc( sizeof(byte_t) * i_size );
224 if( p_sys->p_pixels == NULL )
226 p_primary->Unlock(p_primary);
231 memcpy( p_sys->p_pixels, p_pixels, i_size );
232 if( p_primary->Unlock(p_primary) != DFB_OK )
237 p_pic->p->p_pixels = p_sys->p_pixels;
238 p_pic->p->i_pixel_pitch = i_line_pitch / p_sys->i_width;
239 p_pic->p->i_lines = p_sys->i_height;
240 p_pic->p->i_visible_lines = p_sys->i_height;
241 p_pic->p->i_pitch = i_line_pitch;
242 p_pic->p->i_visible_pitch = i_line_pitch;
244 p_pic->i_status = DESTROYED_PICTURE;
245 p_pic->i_type = DIRECT_PICTURE;
247 PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
254 static void End( vout_thread_t *p_vout )
256 vout_sys_t *p_sys = p_vout->p_sys;
258 if( p_sys->p_pixels )
259 free( p_sys->p_pixels );
262 static void Destroy( vlc_object_t *p_this )
264 vout_thread_t *p_vout = (vout_thread_t *)p_this;
265 vout_sys_t *p_sys = p_vout->p_sys;
267 CloseDisplay( p_vout );
268 if( p_sys ) free( p_sys );
272 static int Manage( vout_thread_t *p_vout )
277 static void Display( vout_thread_t *p_vout, picture_t *p_pic )
279 vout_sys_t *p_sys = p_vout->p_sys;
280 IDirectFBSurface *p_primary = (IDirectFBSurface *) p_sys->p_primary;
281 byte_t* p_pixels = NULL;
286 if( p_primary->Lock( p_primary, DSLF_WRITE,
288 &i_line_pitch) == DFB_OK )
290 i_size = i_line_pitch * p_vout->p_sys->i_height;
293 memcpy( p_pixels, p_pic->p->p_pixels, i_size);
294 if( p_primary->Unlock(p_primary) == DFB_OK )
296 p_primary->Flip(p_primary, NULL, 0);
301 static int OpenDisplay( vout_thread_t *p_vout )
303 vout_sys_t *p_sys = p_vout->p_sys;
304 IDirectFB *p_directfb = NULL;
305 IDirectFBSurface *p_primary = NULL;
306 DFBSurfaceDescription dsc;
308 /*dsc.flags = DSDESC_CAPS | DSDESC_HEIGHT | DSDESC_WIDTH;*/
309 dsc.flags = DSDESC_CAPS;
310 dsc.caps = DSCAPS_PRIMARY | DSCAPS_FLIPPING;
313 /*dsc.height = 240;*/
314 if( DirectFBCreate( &p_directfb ) != DFB_OK )
317 p_sys->p_directfb = p_directfb;
321 if( p_directfb->CreateSurface( p_directfb, &dsc, &p_primary ) )
324 p_sys->p_primary = p_primary;
328 p_primary->GetSize( p_primary, &p_sys->i_width,
330 p_primary->GetPixelFormat( p_primary, &p_sys->p_pixel_format );
331 p_primary->FillRectangle( p_primary, 0, 0, p_sys->i_width,
333 p_primary->Flip( p_primary, NULL, 0 );
338 static void CloseDisplay( vout_thread_t *p_vout )
340 vout_sys_t *p_sys = p_vout->p_sys;
341 IDirectFB *p_directfb = p_sys->p_directfb;
342 IDirectFBSurface *p_primary = p_sys->p_primary;
345 p_primary->Release( p_primary );
348 p_directfb->Release( p_directfb );