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 */
34 /*****************************************************************************
36 *****************************************************************************/
37 static int Create ( vlc_object_t * );
38 static void Destroy ( vlc_object_t * );
40 static int Init ( vout_thread_t * );
41 static void End ( vout_thread_t * );
42 static int Manage ( vout_thread_t * );
43 static void Display ( vout_thread_t *, picture_t * );
45 static int OpenDisplay ( vout_thread_t * );
46 static void CloseDisplay ( vout_thread_t * );
50 IDirectFB *p_directfb;
51 IDirectFBSurface *p_primary;
52 DFBSurfacePixelFormat p_pixel_format;
60 /*****************************************************************************
62 *****************************************************************************/
64 set_shortname( "DirectFB" );
65 set_category( CAT_VIDEO );
66 set_subcategory( SUBCAT_VIDEO_VOUT );
67 set_description( _("DirectFB video output http://www.directfb.org/") );
68 set_capability( "video output", 60 );
69 add_shortcut( "directfb" );
70 set_callbacks( Create, Destroy );
74 static int Create( vlc_object_t *p_this )
76 vout_thread_t *p_vout = (vout_thread_t *)p_this;
77 vout_sys_t *p_sys = NULL;
78 p_vout->pf_init = Init;
80 p_vout->pf_manage = Manage;
81 p_vout->pf_render = NULL;
82 p_vout->pf_display = Display;
84 /* Allocate structure */
85 p_vout->p_sys = p_sys = malloc( sizeof( vout_sys_t ) );
88 msg_Err( p_vout, "out of memory" );
92 p_sys->p_directfb = NULL;
93 p_sys->p_primary = NULL;
94 p_sys->p_pixels = NULL;
99 if( DirectFBInit(NULL,NULL) != DFB_OK )
101 msg_Err(p_vout, "Cannot init DirectFB");
105 if( OpenDisplay( p_vout ) )
107 msg_Err(p_vout, "Cannot create primary surface");
115 static int Init( vout_thread_t *p_vout )
117 vout_sys_t *p_sys = p_vout->p_sys;
118 IDirectFBSurface *p_primary = (IDirectFBSurface *) p_vout->p_sys->p_primary;
119 byte_t* p_pixels = NULL;
120 picture_t *p_pic = NULL;
121 int i_rlength, i_glength, i_blength;
122 int i_roffset, i_goffset, i_boffset;
127 I_OUTPUTPICTURES = 0;
129 switch( p_sys->p_pixel_format )
132 /* 8 bit RGB (1 byte, red 3@5, green 3@2, blue 2@0) */
133 /* i_pixel_pitch = 1; */
140 p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2');
144 /* 16 bit RGB (2 byte, red 5@11, green 6@5, blue 5@0) */
145 /* i_pixel_pitch = 2; */
152 p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6');
156 /* 24 bit RGB (3 byte, red 8@16, green 8@8, blue 8@0) */
157 /* i_pixel_pitch = 3; */
164 p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4');
168 /* 24 bit RGB (4 byte, nothing@24, red 8@16, green 8@8, blue 8@0) */
169 /* i_pixel_pitch = 4; */
176 p_vout->output.i_chroma = VLC_FOURCC('R','V','3','2');
180 msg_Err( p_vout, "unknown screen depth %i",
181 p_sys->p_pixel_format );
184 /* Set the RGB masks */
185 p_vout->output.i_rmask = ( (1 << i_rlength) - 1 ) << i_roffset;
186 p_vout->output.i_gmask = ( (1 << i_glength) - 1 ) << i_goffset;
187 p_vout->output.i_bmask = ( (1 << i_blength) - 1 ) << i_boffset;
189 /* Width and height */
190 p_vout->output.i_width = p_sys->i_width;
191 p_vout->output.i_height = p_sys->i_height;
194 p_vout->output.i_aspect = (p_sys->i_width * VOUT_ASPECT_FACTOR) /
197 /* Try to initialize 1 buffer */
198 /* Find an empty picture slot */
199 for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
201 if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
203 p_pic = p_vout->p_picture + i_index;
208 /* Allocate the picture */
213 if( p_primary->Lock( p_primary, DSLF_READ, (void **) &p_pixels,
214 &i_line_pitch) != DFB_OK )
217 /* allocate p_pixels */
218 i_size = i_line_pitch * p_sys->i_height;
219 p_sys->p_pixels = malloc( sizeof(byte_t) * i_size );
220 if( p_sys->p_pixels == NULL )
222 p_primary->Unlock(p_primary);
227 memcpy( p_sys->p_pixels, p_pixels, i_size );
228 if( p_primary->Unlock(p_primary) != DFB_OK )
233 p_pic->p->p_pixels = p_sys->p_pixels;
234 p_pic->p->i_pixel_pitch = i_line_pitch / p_sys->i_width;
235 p_pic->p->i_lines = p_sys->i_height;
236 p_pic->p->i_visible_lines = p_sys->i_height;
237 p_pic->p->i_pitch = i_line_pitch;
238 p_pic->p->i_visible_pitch = i_line_pitch;
240 p_pic->i_status = DESTROYED_PICTURE;
241 p_pic->i_type = DIRECT_PICTURE;
243 PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
250 static void End( vout_thread_t *p_vout )
252 vout_sys_t *p_sys = p_vout->p_sys;
254 if( p_sys->p_pixels )
255 free( p_sys->p_pixels );
258 static void Destroy( vlc_object_t *p_this )
260 vout_thread_t *p_vout = (vout_thread_t *)p_this;
261 vout_sys_t *p_sys = p_vout->p_sys;
263 CloseDisplay( p_vout );
264 if( p_sys ) free( p_sys );
268 static int Manage( vout_thread_t *p_vout )
273 static void Display( vout_thread_t *p_vout, picture_t *p_pic )
275 vout_sys_t *p_sys = p_vout->p_sys;
276 IDirectFBSurface *p_primary = (IDirectFBSurface *) p_sys->p_primary;
277 byte_t* p_pixels = NULL;
282 if( p_primary->Lock( p_primary, DSLF_WRITE,
284 &i_line_pitch) == DFB_OK )
286 i_size = i_line_pitch * p_vout->p_sys->i_height;
289 memcpy( p_pixels, p_pic->p->p_pixels, i_size);
290 if( p_primary->Unlock(p_primary) == DFB_OK )
292 p_primary->Flip(p_primary, NULL, 0);
297 static int OpenDisplay( vout_thread_t *p_vout )
299 vout_sys_t *p_sys = p_vout->p_sys;
300 IDirectFB *p_directfb = NULL;
301 IDirectFBSurface *p_primary = NULL;
302 DFBSurfaceDescription dsc;
304 /*dsc.flags = DSDESC_CAPS | DSDESC_HEIGHT | DSDESC_WIDTH;*/
305 dsc.flags = DSDESC_CAPS;
306 dsc.caps = DSCAPS_PRIMARY | DSCAPS_FLIPPING;
309 /*dsc.height = 240;*/
310 if( DirectFBCreate( &p_directfb ) != DFB_OK )
313 p_sys->p_directfb = p_directfb;
317 if( p_directfb->CreateSurface( p_directfb, &dsc, &p_primary ) )
320 p_sys->p_primary = p_primary;
324 p_primary->GetSize( p_primary, &p_sys->i_width,
326 p_primary->GetPixelFormat( p_primary, &p_sys->p_pixel_format );
327 p_primary->FillRectangle( p_primary, 0, 0, p_sys->i_width,
329 p_primary->Flip( p_primary, NULL, 0 );
334 static void CloseDisplay( vout_thread_t *p_vout )
336 vout_sys_t *p_sys = p_vout->p_sys;
337 IDirectFB *p_directfb = p_sys->p_directfb;
338 IDirectFBSurface *p_primary = p_sys->p_primary;
341 p_primary->Release( p_primary );
344 p_directfb->Release( p_directfb );