git.sesse.net Git - vlc/blob - src/osd/osd.c

   1 /*****************************************************************************
   2  * osd.c - The OSD Menu core code.
   3  *****************************************************************************
   4  * Copyright (C) 2005-2007 M2X
   5  * $Id$
   6  *
   7  * Authors: Jean-Paul Saman <jpsaman #_at_# m2x dot nl>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27
  28 #include <vlc/vlc.h>
  29 #include <vlc_keys.h>
  30 #include <vlc_osd.h>
  31 #include "libvlc.h"
  32 #include <vlc_image.h>
  33
  34 #undef OSD_MENU_DEBUG
  35
  36 /*****************************************************************************
  37  * Local prototypes
  38  *****************************************************************************/
  39
  40 static void osd_UpdateState( osd_menu_state_t *, int, int, int, int, picture_t * );
  41 static inline osd_state_t *osd_VolumeStateChange( osd_state_t *, int );
  42 static int osd_VolumeStep( vlc_object_t *, int, int );
  43 static vlc_bool_t osd_isVisible( osd_menu_t *p_osd );
  44 static int  osd_ParserLoad( vlc_object_t *, const char *, osd_menu_t ** );
  45 static void osd_ParserUnload( vlc_object_t *, osd_menu_t ** );
  46
  47 static vlc_bool_t osd_isVisible( osd_menu_t *p_osd )
  48 {
  49     vlc_value_t val;
  50
  51     var_Get( p_osd, "osd-menu-visible", &val );
  52     return val.b_bool;
  53 }
  54
  55 /*****************************************************************************
  56  * Wrappers for loading and unloading osd parser modules.
  57  *****************************************************************************/
  58 static int osd_ParserLoad( vlc_object_t *p_this, const char *psz_file, osd_menu_t **pp_menu )
  59 {
  60     osd_menu_t *p_menu = *pp_menu;
  61
  62     if( pp_menu && p_menu ) return VLC_EGENERIC;
  63
  64     p_menu = vlc_object_create( p_this, VLC_OBJECT_OSDMENU );
  65     if( !p_menu )
  66     {
  67         msg_Err( p_this, "out of memory" );
  68         return VLC_ENOMEM;
  69     }
  70     vlc_object_attach( p_this, p_menu );
  71
  72     /* Stuff needed for Parser */
  73     p_menu->psz_file = strdup( psz_file );
  74     p_menu->p_image = image_HandlerCreate( p_this );
  75     if( !p_menu->p_image || !p_menu->psz_file )
  76     {
  77         msg_Err( p_this, "unable to load images, aborting .." );
  78         osd_ParserUnload( p_this, pp_menu );
  79         return VLC_ENOMEM;
  80     }
  81     else
  82     {
  83         char *psz_type;
  84         char *psz_ext = strrchr( p_menu->psz_file, '.' );
  85
  86         if( psz_ext && !strcmp( psz_ext, ".cfg") )
  87             psz_type = "import-osd";
  88         else
  89             psz_type = "import-osd-xml";
  90
  91         p_menu->p_parser = module_Need( p_menu, "osd parser", psz_type, VLC_TRUE );
  92         if( !p_menu->p_parser )
  93         {
  94             osd_ParserUnload( p_this, pp_menu );
  95             return VLC_ENOOBJ;
  96         }
  97     }
  98     return VLC_SUCCESS;
  99 }
 100
 101 static void osd_ParserUnload( vlc_object_t *p_this, osd_menu_t **pp_menu )
 102 {
 103     osd_menu_t *p_menu = (osd_menu_t *) *pp_menu;
 104
 105     if( p_menu->p_parser )
 106     {
 107         module_Unneed( p_menu, p_menu->p_parser );
 108     }
 109     p_menu->p_parser = NULL;
 110
 111     if( p_menu->p_image )
 112         image_HandlerDelete( p_menu->p_image );
 113     if( p_menu->psz_file )
 114         free( p_menu->psz_file );
 115
 116     vlc_object_detach( p_menu );
 117     vlc_object_destroy( p_menu );
 118     p_menu = NULL;
 119 }
 120
 121 /*****************************************************************************
 122  * OSD menu Funtions
 123  *****************************************************************************/
 124 osd_menu_t *__osd_MenuCreate( vlc_object_t *p_this, const char *psz_file )
 125 {
 126     osd_menu_t  *p_osd = NULL;
 127     vlc_value_t lockval;
 128     int         i_volume = 0;
 129     int         i_steps = 0;
 130
 131     /* to be sure to avoid multiple creation */
 132     var_Create( p_this->p_libvlc, "osd_mutex", VLC_VAR_MUTEX );
 133     var_Get( p_this->p_libvlc, "osd_mutex", &lockval );
 134     vlc_mutex_lock( lockval.p_address );
 135
 136     p_osd = vlc_object_find( p_this, VLC_OBJECT_OSDMENU, FIND_ANYWHERE );
 137     if( p_osd == NULL )
 138     {
 139         vlc_value_t val;
 140
 141         /* Parse configuration file */
 142         if( osd_ParserLoad( p_this, psz_file, &p_osd ) )
 143             goto error;
 144
 145         /* Setup default button (first button) */
 146         p_osd->p_state->p_visible = p_osd->p_button;
 147         p_osd->p_state->p_visible->p_current_state =
 148             osd_StateChange( p_osd->p_state->p_visible->p_states, OSD_BUTTON_SELECT );
 149         p_osd->i_width  = p_osd->p_state->p_visible->p_current_state->p_pic->p[Y_PLANE].i_visible_pitch;
 150         p_osd->i_height = p_osd->p_state->p_visible->p_current_state->p_pic->p[Y_PLANE].i_visible_lines;
 151
 152         if( p_osd->p_state->p_volume )
 153         {
 154             /* Update the volume state images to match the current volume */
 155             i_volume = config_GetInt( p_this, "volume" );
 156             i_steps = osd_VolumeStep( p_this, i_volume, p_osd->p_state->p_volume->i_ranges );
 157             p_osd->p_state->p_volume->p_current_state = osd_VolumeStateChange(
 158                                     p_osd->p_state->p_volume->p_states, i_steps );
 159         }
 160         /* Initialize OSD state */
 161         osd_UpdateState( p_osd->p_state, p_osd->i_x, p_osd->i_y,
 162                          p_osd->i_width, p_osd->i_height, NULL );
 163
 164         vlc_object_yield( p_osd );
 165         vlc_object_attach( p_osd, p_this->p_libvlc );
 166
 167         /* Signal when an update of OSD menu is needed */
 168         var_Create( p_osd, "osd-menu-update", VLC_VAR_BOOL );
 169         var_Create( p_osd, "osd-menu-visible", VLC_VAR_BOOL );
 170
 171         val.b_bool = VLC_FALSE;
 172         var_Set( p_osd, "osd-menu-update", val );
 173         var_Set( p_osd, "osd-menu-visible", val );
 174     }
 175     vlc_mutex_unlock( lockval.p_address );
 176     return p_osd;
 177
 178 error:
 179     msg_Err( p_this, "creating OSD menu object failed" );
 180
 181     if( p_osd->p_image )
 182         image_HandlerDelete( p_osd->p_image );
 183     if( p_osd->psz_file )
 184         free( p_osd->psz_file );
 185
 186     vlc_mutex_unlock( lockval.p_address );
 187     vlc_object_destroy( p_osd );
 188     vlc_mutex_unlock( lockval.p_address );
 189     return NULL;
 190 }
 191
 192 void __osd_MenuDelete( vlc_object_t *p_this, osd_menu_t *p_osd )
 193 {
 194     vlc_value_t lockval;
 195
 196     if( !p_osd || !p_this ) return;
 197
 198     var_Get( p_this->p_libvlc, "osd_mutex", &lockval );
 199     vlc_mutex_lock( lockval.p_address );
 200
 201     vlc_object_release( p_osd );
 202     if( p_osd->p_internals->i_refcount > 0 )
 203     {
 204         vlc_mutex_unlock( lockval.p_address );
 205         return;
 206     }
 207
 208     var_Destroy( p_osd, "osd-menu-visible" );
 209     var_Destroy( p_osd, "osd-menu-update" );
 210
 211     osd_ParserUnload( p_this, &p_osd );
 212
 213     vlc_mutex_unlock( lockval.p_address );
 214 }
 215
 216 osd_state_t *__osd_StateChange( osd_state_t *p_states, const int i_state )
 217 {
 218     osd_state_t *p_current = p_states;
 219     osd_state_t *p_temp = NULL;
 220     int i = 0;
 221
 222     for( i=0; p_current != NULL; i++ )
 223     {
 224         if( p_current->i_state == i_state )
 225             return p_current;
 226         p_temp = p_current->p_next;
 227         p_current = p_temp;
 228     }
 229     return p_states;
 230 }
 231
 232 /* The volume can be modified in another interface while the OSD Menu
 233  * has not been instantiated yet. This routines updates the "volume OSD menu item"
 234  * to reflect the current state of the GUI.
 235  */
 236 static inline osd_state_t *osd_VolumeStateChange( osd_state_t *p_current, int i_steps )
 237 {
 238     osd_state_t *p_temp = NULL;
 239     int i;
 240
 241     if( i_steps < 0 ) i_steps = 0;
 242
 243     for( i=0; (i < i_steps) && (p_current != NULL); i++ )
 244     {
 245         p_temp = p_current->p_next;
 246         if( !p_temp ) return p_current;
 247         p_current = p_temp;
 248     }
 249     return (!p_temp) ? p_current : p_temp;
 250 }
 251
 252 /* Update the state of the OSD Menu */
 253 static void osd_UpdateState( osd_menu_state_t *p_state, int i_x, int i_y,
 254         int i_width, int i_height, picture_t *p_pic )
 255 {
 256     p_state->i_x = i_x;
 257     p_state->i_y = i_y;
 258     p_state->i_width = i_width;
 259     p_state->i_height = i_height;
 260     p_state->p_pic = p_pic;
 261 }
 262
 263 void __osd_MenuShow( vlc_object_t *p_this )
 264 {
 265     osd_menu_t *p_osd = NULL;
 266     osd_button_t *p_button = NULL;
 267     vlc_value_t lockval;
 268
 269     p_osd = vlc_object_find( p_this, VLC_OBJECT_OSDMENU, FIND_ANYWHERE );
 270     if( p_osd == NULL )
 271     {
 272         msg_Err( p_this, "osd_MenuNext failed" );
 273         return;
 274     }
 275
 276     var_Get( p_this->p_libvlc, "osd_mutex", &lockval );
 277     vlc_mutex_lock( lockval.p_address );
 278
 279 #if defined(OSD_MENU_DEBUG)
 280     msg_Dbg( p_osd, "menu on" );
 281 #endif
 282     p_button = p_osd->p_state->p_visible;
 283     if( p_button )
 284     {
 285         if( !p_button->b_range )
 286             p_button->p_current_state = osd_StateChange( p_button->p_states, OSD_BUTTON_UNSELECT );
 287         p_osd->p_state->p_visible = p_osd->p_button;
 288
 289         if( !p_osd->p_state->p_visible->b_range )
 290             p_osd->p_state->p_visible->p_current_state =
 291                 osd_StateChange( p_osd->p_state->p_visible->p_states, OSD_BUTTON_SELECT );
 292
 293         osd_UpdateState( p_osd->p_state,
 294                 p_osd->p_state->p_visible->i_x, p_osd->p_state->p_visible->i_y,
 295                 p_osd->p_state->p_visible->p_current_state->p_pic->p[Y_PLANE].i_visible_pitch,
 296                 p_osd->p_state->p_visible->p_current_state->p_pic->p[Y_PLANE].i_visible_lines,
 297                 p_osd->p_state->p_visible->p_current_state->p_pic );
 298         osd_SetMenuUpdate( p_osd, VLC_TRUE );
 299     }
 300     osd_SetMenuVisible( p_osd, VLC_TRUE );
 301
 302     vlc_object_release( (vlc_object_t*) p_osd );
 303     vlc_mutex_unlock( lockval.p_address );
 304 }
 305
 306 void __osd_MenuHide( vlc_object_t *p_this )
 307 {
 308     osd_menu_t *p_osd = NULL;
 309     vlc_value_t lockval;
 310
 311     p_osd = vlc_object_find( p_this, VLC_OBJECT_OSDMENU, FIND_ANYWHERE );
 312     if( p_osd == NULL )
 313     {
 314         msg_Err( p_this, "osd_MenuNext failed" );
 315         return;
 316     }
 317
 318     var_Get( p_this->p_libvlc, "osd_mutex", &lockval );
 319     vlc_mutex_lock( lockval.p_address );
 320
 321 #if defined(OSD_MENU_DEBUG)
 322     msg_Dbg( p_osd, "menu off" );
 323 #endif
 324     osd_UpdateState( p_osd->p_state,
 325                 p_osd->p_state->i_x, p_osd->p_state->i_y,
 326                 0, 0, NULL );
 327     osd_SetMenuUpdate( p_osd, VLC_TRUE );
 328
 329     vlc_object_release( (vlc_object_t*) p_osd );
 330     vlc_mutex_unlock( lockval.p_address );
 331 }
 332
 333 void __osd_MenuActivate( vlc_object_t *p_this )
 334 {
 335     osd_menu_t *p_osd = NULL;
 336     osd_button_t *p_button = NULL;
 337     vlc_value_t lockval;
 338
 339     p_osd = vlc_object_find( p_this, VLC_OBJECT_OSDMENU, FIND_ANYWHERE );
 340     if( p_osd == NULL )
 341     {
 342         msg_Err( p_this, "osd_MenuNext failed" );
 343         return;
 344     }
 345
 346     if( osd_isVisible( p_osd ) == VLC_FALSE )
 347     {
 348         vlc_object_release( (vlc_object_t*) p_osd );
 349         return;
 350     }
 351
 352     var_Get( p_this->p_libvlc, "osd_mutex", &lockval );
 353     vlc_mutex_lock( lockval.p_address );
 354
 355 #if defined(OSD_MENU_DEBUG)
 356     msg_Dbg( p_osd, "select" );
 357 #endif
 358     p_button = p_osd->p_state->p_visible;
 359     /*
 360      * Is there a menu item above or below? If so, then select it.
 361      */
 362     if( p_button && p_button->p_up )
 363     {
 364         vlc_object_release( (vlc_object_t*) p_osd );
 365         vlc_mutex_unlock( lockval.p_address );
 366         __osd_MenuUp( p_this );   /* "menu select" means go to menu item above. */
 367         return;
 368     }
 369     if( p_button && p_button->p_down )
 370     {
 371         vlc_object_release( (vlc_object_t*) p_osd );
 372         vlc_mutex_unlock( lockval.p_address );
 373         __osd_MenuDown( p_this ); /* "menu select" means go to menu item below. */
 374         return;
 375     }
 376
 377     if( p_button && !p_button->b_range )
 378     {
 379         p_button->p_current_state = osd_StateChange( p_button->p_states, OSD_BUTTON_PRESSED );
 380         osd_UpdateState( p_osd->p_state,
 381                 p_button->i_x, p_button->i_y,
 382                 p_osd->p_state->p_visible->p_current_state->p_pic->p[Y_PLANE].i_visible_pitch,
 383                 p_osd->p_state->p_visible->p_current_state->p_pic->p[Y_PLANE].i_visible_lines,
 384                 p_button->p_current_state->p_pic );
 385         osd_SetMenuUpdate( p_osd, VLC_TRUE );
 386         osd_SetMenuVisible( p_osd, VLC_TRUE );
 387         osd_SetKeyPressed( VLC_OBJECT(p_osd->p_libvlc), config_GetInt( p_osd, p_button->psz_action ) );
 388 #if defined(OSD_MENU_DEBUG)
 389         msg_Dbg( p_osd, "select (%d, %s)", config_GetInt( p_osd, p_button->psz_action ), p_button->psz_action );
 390 #endif
 391     }
 392     vlc_object_release( (vlc_object_t*) p_osd );
 393     vlc_mutex_unlock( lockval.p_address );
 394 }
 395
 396 void __osd_MenuNext( vlc_object_t *p_this )
 397 {
 398     osd_menu_t *p_osd = NULL;
 399     osd_button_t *p_button = NULL;
 400     vlc_value_t lockval;
 401
 402     p_osd = vlc_object_find( p_this, VLC_OBJECT_OSDMENU, FIND_ANYWHERE );
 403     if( p_osd == NULL )
 404     {
 405         msg_Err( p_this, "osd_MenuNext failed" );
 406         return;
 407     }
 408
 409     if( osd_isVisible( p_osd ) == VLC_FALSE )
 410     {
 411         vlc_object_release( (vlc_object_t*) p_osd );
 412         return;
 413     }
 414
 415     var_Get( p_this->p_libvlc, "osd_mutex", &lockval );
 416     vlc_mutex_lock( lockval.p_address );
 417
 418     p_button = p_osd->p_state->p_visible;
 419     if( p_button )
 420     {
 421         if( !p_button->b_range )
 422             p_button->p_current_state = osd_StateChange( p_button->p_states, OSD_BUTTON_UNSELECT );
 423         if( p_button->p_next )
 424             p_osd->p_state->p_visible = p_button->p_next;
 425         else
 426             p_osd->p_state->p_visible = p_osd->p_button;
 427
 428         if( !p_osd->p_state->p_visible->b_range )
 429             p_osd->p_state->p_visible->p_current_state =
 430                 osd_StateChange( p_osd->p_state->p_visible->p_states, OSD_BUTTON_SELECT );
 431
 432         osd_UpdateState( p_osd->p_state,
 433                 p_osd->p_state->p_visible->i_x, p_osd->p_state->p_visible->i_y,
 434                 p_osd->p_state->p_visible->p_current_state->p_pic->p[Y_PLANE].i_visible_pitch,
 435                 p_osd->p_state->p_visible->p_current_state->p_pic->p[Y_PLANE].i_visible_lines,
 436                 p_osd->p_state->p_visible->p_current_state->p_pic );
 437         osd_SetMenuUpdate( p_osd, VLC_TRUE );
 438     }
 439 #if defined(OSD_MENU_DEBUG)
 440     msg_Dbg( p_osd, "direction right [button %s]", p_osd->p_state->p_visible->psz_action );
 441 #endif
 442
 443     vlc_object_release( (vlc_object_t*) p_osd );
 444     vlc_mutex_unlock( lockval.p_address );
 445 }
 446
 447 void __osd_MenuPrev( vlc_object_t *p_this )
 448 {
 449     osd_menu_t *p_osd = NULL;
 450     osd_button_t *p_button = NULL;
 451     vlc_value_t lockval;
 452
 453     p_osd = vlc_object_find( p_this, VLC_OBJECT_OSDMENU, FIND_ANYWHERE );
 454     if( p_osd == NULL )
 455     {
 456         msg_Err( p_this, "osd_MenuPrev failed" );
 457         return;
 458     }
 459
 460     if( osd_isVisible( p_osd ) == VLC_FALSE )
 461     {
 462         vlc_object_release( (vlc_object_t*) p_osd );
 463         return;
 464     }
 465
 466     var_Get( p_this->p_libvlc, "osd_mutex", &lockval );
 467     vlc_mutex_lock( lockval.p_address );
 468
 469     p_button = p_osd->p_state->p_visible;
 470     if( p_button )
 471     {
 472         if( !p_button->b_range )
 473             p_button->p_current_state = osd_StateChange( p_button->p_states, OSD_BUTTON_UNSELECT );
 474         if( p_button->p_prev )
 475             p_osd->p_state->p_visible = p_button->p_prev;
 476         else
 477             p_osd->p_state->p_visible = p_osd->p_last_button;
 478
 479         if( !p_osd->p_state->p_visible->b_range )
 480             p_osd->p_state->p_visible->p_current_state =
 481                 osd_StateChange( p_osd->p_state->p_visible->p_states, OSD_BUTTON_SELECT );
 482
 483         osd_UpdateState( p_osd->p_state,
 484                 p_osd->p_state->p_visible->i_x, p_osd->p_state->p_visible->i_y,
 485                 p_osd->p_state->p_visible->p_current_state->p_pic->p[Y_PLANE].i_visible_pitch,
 486                 p_osd->p_state->p_visible->p_current_state->p_pic->p[Y_PLANE].i_visible_lines,
 487                 p_osd->p_state->p_visible->p_current_state->p_pic );
 488         osd_SetMenuUpdate( p_osd, VLC_TRUE );
 489     }
 490 #if defined(OSD_MENU_DEBUG)
 491     msg_Dbg( p_osd, "direction left [button %s]", p_osd->p_state->p_visible->psz_action );
 492 #endif
 493
 494     vlc_object_release( (vlc_object_t*) p_osd );
 495     vlc_mutex_unlock( lockval.p_address );
 496 }
 497
 498 void __osd_MenuUp( vlc_object_t *p_this )
 499 {
 500     osd_menu_t *p_osd = NULL;
 501     osd_button_t *p_button = NULL;
 502     vlc_value_t lockval;
 503 #if defined(OSD_MENU_DEBUG)
 504     vlc_value_t val;
 505 #endif
 506     p_osd = vlc_object_find( p_this, VLC_OBJECT_OSDMENU, FIND_ANYWHERE );
 507     if( p_osd == NULL )
 508     {
 509         msg_Err( p_this, "osd_MenuDown failed" );
 510         return;
 511     }
 512
 513     if( osd_isVisible( p_osd ) == VLC_FALSE )
 514     {
 515         vlc_object_release( (vlc_object_t*) p_osd );
 516         return;
 517     }
 518
 519     var_Get( p_this->p_libvlc, "osd_mutex", &lockval );
 520     vlc_mutex_lock( lockval.p_address );
 521
 522     p_button = p_osd->p_state->p_visible;
 523     if( p_button )
 524     {
 525         if( !p_button->b_range )
 526         {
 527             p_button->p_current_state = osd_StateChange( p_button->p_states, OSD_BUTTON_SELECT );
 528             if( p_button->p_up )
 529                 p_osd->p_state->p_visible = p_button->p_up;
 530         }
 531
 532         if( p_button->b_range && p_osd->p_state->p_visible->b_range )
 533         {
 534             osd_state_t *p_temp = p_osd->p_state->p_visible->p_current_state;
 535             if( p_temp && p_temp->p_next )
 536                 p_osd->p_state->p_visible->p_current_state = p_temp->p_next;
 537         }
 538         else if( !p_osd->p_state->p_visible->b_range )
 539         {
 540             p_osd->p_state->p_visible->p_current_state =
 541                 osd_StateChange( p_osd->p_state->p_visible->p_states, OSD_BUTTON_SELECT );
 542         }
 543
 544         osd_UpdateState( p_osd->p_state,
 545                 p_osd->p_state->p_visible->i_x, p_osd->p_state->p_visible->i_y,
 546                 p_osd->p_state->p_visible->p_current_state->p_pic->p[Y_PLANE].i_visible_pitch,
 547                 p_osd->p_state->p_visible->p_current_state->p_pic->p[Y_PLANE].i_visible_lines,
 548                 p_osd->p_state->p_visible->p_current_state->p_pic );
 549         osd_SetMenuUpdate( p_osd, VLC_TRUE );
 550         /* If this is a range style action with associated images of only one state,
 551             * then perform "menu select" on every menu navigation
 552             */
 553         if( p_button->b_range )
 554         {
 555             osd_SetKeyPressed( VLC_OBJECT(p_osd->p_libvlc), config_GetInt(p_osd, p_button->psz_action) );
 556 #if defined(OSD_MENU_DEBUG)
 557             msg_Dbg( p_osd, "select (%d, %s)", val.i_int, p_button->psz_action );
 558 #endif
 559         }
 560     }
 561 #if defined(OSD_MENU_DEBUG)
 562     msg_Dbg( p_osd, "direction up [button %s]", p_osd->p_state->p_visible->psz_action );
 563 #endif
 564
 565     vlc_object_release( (vlc_object_t*) p_osd );
 566     vlc_mutex_unlock( lockval.p_address );
 567 }
 568
 569 void __osd_MenuDown( vlc_object_t *p_this )
 570 {
 571     osd_menu_t *p_osd = NULL;
 572     osd_button_t *p_button = NULL;
 573     vlc_value_t lockval;
 574 #if defined(OSD_MENU_DEBUG)
 575     vlc_value_t val;
 576 #endif
 577
 578     p_osd = vlc_object_find( p_this, VLC_OBJECT_OSDMENU, FIND_ANYWHERE );
 579     if( p_osd == NULL )
 580     {
 581         msg_Err( p_this, "osd_MenuDown failed" );
 582         return;
 583     }
 584
 585     if( osd_isVisible( p_osd ) == VLC_FALSE )
 586     {
 587         vlc_object_release( (vlc_object_t*) p_osd );
 588         return;
 589     }
 590
 591     var_Get( p_this->p_libvlc, "osd_mutex", &lockval );
 592     vlc_mutex_lock( lockval.p_address );
 593
 594     p_button = p_osd->p_state->p_visible;
 595     if( p_button )
 596     {
 597         if( !p_button->b_range )
 598         {
 599             p_button->p_current_state = osd_StateChange( p_button->p_states, OSD_BUTTON_SELECT );
 600             if( p_button->p_down )
 601                 p_osd->p_state->p_visible = p_button->p_down;
 602         }
 603
 604         if( p_button->b_range && p_osd->p_state->p_visible->b_range )
 605         {
 606             osd_state_t *p_temp = p_osd->p_state->p_visible->p_current_state;
 607             if( p_temp && p_temp->p_prev )
 608                 p_osd->p_state->p_visible->p_current_state = p_temp->p_prev;
 609         }
 610         else if( !p_osd->p_state->p_visible->b_range )
 611         {
 612             p_osd->p_state->p_visible->p_current_state =
 613                 osd_StateChange( p_osd->p_state->p_visible->p_states, OSD_BUTTON_SELECT );
 614         }
 615
 616         osd_UpdateState( p_osd->p_state,
 617                 p_osd->p_state->p_visible->i_x, p_osd->p_state->p_visible->i_y,
 618                 p_osd->p_state->p_visible->p_current_state->p_pic->p[Y_PLANE].i_visible_pitch,
 619                 p_osd->p_state->p_visible->p_current_state->p_pic->p[Y_PLANE].i_visible_lines,
 620                 p_osd->p_state->p_visible->p_current_state->p_pic );
 621         osd_SetMenuUpdate( p_osd, VLC_TRUE );
 622         /* If this is a range style action with associated images of only one state,
 623          * then perform "menu select" on every menu navigation
 624          */
 625         if( p_button->b_range )
 626         {
 627             osd_SetKeyPressed( VLC_OBJECT(p_osd->p_libvlc), config_GetInt(p_osd, p_button->psz_action_down) );
 628 #if defined(OSD_MENU_DEBUG)
 629             msg_Dbg( p_osd, "select (%d, %s)", val.i_int, p_button->psz_action_down );
 630 #endif
 631         }
 632     }
 633 #if defined(OSD_MENU_DEBUG)
 634     msg_Dbg( p_osd, "direction down [button %s]", p_osd->p_state->p_visible->psz_action );
 635 #endif
 636
 637     vlc_object_release( (vlc_object_t*) p_osd );
 638     vlc_mutex_unlock( lockval.p_address );
 639 }
 640
 641 static int osd_VolumeStep( vlc_object_t *p_this, int i_volume, int i_steps )
 642 {
 643     int i_volume_step = 0;
 644     (void)i_steps;
 645
 646     i_volume_step = config_GetInt( p_this->p_libvlc, "volume-step" );
 647     return (i_volume/i_volume_step);
 648 }
 649
 650 /**
 651  * Display current audio volume bitmap
 652  *
 653  * The OSD Menu audio volume bar is updated to reflect the new audio volume. Call this function
 654  * when the audio volume is updated outside the OSD menu command "menu up", "menu down" or "menu select".
 655  */
 656 void __osd_Volume( vlc_object_t *p_this )
 657 {
 658     osd_menu_t *p_osd = NULL;
 659     osd_button_t *p_button = NULL;
 660     vlc_value_t lockval;
 661     int i_volume = 0;
 662     int i_steps = 0;
 663
 664     p_osd = vlc_object_find( p_this, VLC_OBJECT_OSDMENU, FIND_ANYWHERE );
 665     if( p_osd == NULL )
 666     {
 667         msg_Err( p_this, "OSD menu volume update failed" );
 668         return;
 669     }
 670
 671     if( p_osd->p_state && p_osd->p_state->p_volume )
 672     {
 673         var_Get( p_this->p_libvlc, "osd_mutex", &lockval );
 674         vlc_mutex_lock( lockval.p_address );
 675
 676         p_button = p_osd->p_state->p_volume;
 677         if( p_osd->p_state->p_volume )
 678             p_osd->p_state->p_visible = p_osd->p_state->p_volume;
 679         if( p_button && p_button->b_range )
 680         {
 681             /* Update the volume state images to match the current volume */
 682             i_volume = config_GetInt( p_this, "volume" );
 683             i_steps = osd_VolumeStep( p_this, i_volume, p_button->i_ranges );
 684             p_button->p_current_state = osd_VolumeStateChange( p_button->p_states, i_steps );
 685
 686             osd_UpdateState( p_osd->p_state,
 687                     p_button->i_x, p_button->i_y,
 688                     p_button->p_current_state->p_pic->p[Y_PLANE].i_visible_pitch,
 689                     p_button->p_current_state->p_pic->p[Y_PLANE].i_visible_lines,
 690                     p_button->p_current_state->p_pic );
 691             osd_SetMenuUpdate( p_osd, VLC_TRUE );
 692             osd_SetMenuVisible( p_osd, VLC_TRUE );
 693         }
 694         vlc_object_release( (vlc_object_t*) p_osd );
 695         vlc_mutex_unlock( lockval.p_address );
 696     }
 697 }