modules/gui/skins2/src/vout_manager.cpp

   1 /*****************************************************************************
   2  * vout_manager.cpp
   3  *****************************************************************************
   4  * Copyright (C) 2009 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Erwan Tulou <brezhoneg1 at yahoo.fr>
   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 #ifdef HAVE_CONFIG_H
  25 # include "config.h"
  26 #endif
  27
  28 #include <vlc_vout.h>
  29 #include <vlc_vout_display.h>
  30
  31 #include "vout_manager.hpp"
  32 #include "window_manager.hpp"
  33 #include "vlcproc.hpp"
  34 #include "../commands/async_queue.hpp"
  35 #include "../commands/cmd_show_window.hpp"
  36 #include "../commands/cmd_resize.hpp"
  37 #include "../commands/cmd_voutwindow.hpp"
  38 #include "../commands/cmd_on_top.hpp"
  39
  40
  41
  42 VoutManager *VoutManager::instance( intf_thread_t *pIntf )
  43 {
  44     if( pIntf->p_sys->p_voutManager == NULL )
  45     {
  46         pIntf->p_sys->p_voutManager = new VoutManager( pIntf );
  47     }
  48
  49     return pIntf->p_sys->p_voutManager;
  50 }
  51
  52
  53 void VoutManager::destroy( intf_thread_t *pIntf )
  54 {
  55     delete pIntf->p_sys->p_voutManager;
  56     pIntf->p_sys->p_voutManager = NULL;
  57 }
  58
  59
  60 VoutManager::VoutManager( intf_thread_t *pIntf ): SkinObject( pIntf ),
  61      m_pVoutMainWindow( NULL ), m_pFscWindow( NULL ), m_pCtrlVideoVec(),
  62      m_pCtrlVideoVecBackup(), m_SavedWndVec()
  63 {
  64     m_pVoutMainWindow = new VoutMainWindow( getIntf() );
  65
  66     OSFactory *pOsFactory = OSFactory::instance( getIntf() );
  67     int width = pOsFactory->getScreenWidth();
  68     int height = pOsFactory->getScreenHeight();
  69
  70     m_pVoutMainWindow->move( 0, 0 );
  71     m_pVoutMainWindow->resize( width, height );
  72 }
  73
  74
  75 VoutManager::~VoutManager( )
  76 {
  77     delete m_pVoutMainWindow;
  78 }
  79
  80
  81 void VoutManager::registerCtrlVideo( CtrlVideo* p_CtrlVideo )
  82 {
  83     m_pCtrlVideoVec.push_back( p_CtrlVideo );
  84 }
  85
  86
  87 void VoutManager::registerFSC( TopWindow* p_Win )
  88 {
  89     m_pFscWindow = p_Win;
  90
  91     int x = p_Win->getLeft();
  92     int y = p_Win->getTop();
  93     p_Win->setParent( m_pVoutMainWindow, x , y, 0, 0 );
  94 }
  95
  96
  97 void VoutManager::saveVoutConfig( )
  98 {
  99     // Save width/height to be consistent across themes
 100     // and detach Video Controls
 101     vector<SavedWnd>::iterator it;
 102     for( it = m_SavedWndVec.begin(); it != m_SavedWndVec.end(); it++ )
 103     {
 104         if( (*it).pCtrlVideo )
 105         {
 106             // detach vout thread from VideoControl
 107             (*it).pCtrlVideo->detachVoutWindow( );
 108
 109             // memorize width/height before VideoControl is destroyed
 110             (*it).width = (*it).pCtrlVideo->getPosition()->getWidth();
 111             (*it).height = (*it).pCtrlVideo->getPosition()->getHeight();
 112             (*it).pCtrlVideo = NULL;
 113        }
 114     }
 115
 116     // Create a backup copy and reset original for new theme
 117     m_pCtrlVideoVecBackup = m_pCtrlVideoVec;
 118     m_pCtrlVideoVec.clear();
 119 }
 120
 121
 122 void VoutManager::restoreVoutConfig( bool b_success )
 123 {
 124     if( !b_success )
 125     {
 126         // loading new theme failed, restoring previous theme
 127         m_pCtrlVideoVec = m_pCtrlVideoVecBackup;
 128     }
 129
 130     // reattach vout(s) to Video Controls
 131     vector<SavedWnd>::iterator it;
 132     for( it = m_SavedWndVec.begin(); it != m_SavedWndVec.end(); it++ )
 133     {
 134         CtrlVideo* pCtrlVideo = getBestCtrlVideo();
 135         if( pCtrlVideo )
 136         {
 137             pCtrlVideo->attachVoutWindow( (*it).pVoutWindow );
 138            (*it).pCtrlVideo = pCtrlVideo;
 139         }
 140     }
 141 }
 142
 143
 144 void VoutManager::discardVout( CtrlVideo* pCtrlVideo )
 145 {
 146     vector<SavedWnd>::iterator it;
 147     for( it = m_SavedWndVec.begin(); it != m_SavedWndVec.end(); it++ )
 148     {
 149         if( (*it).pCtrlVideo == pCtrlVideo )
 150         {
 151             // detach vout thread from VideoControl
 152             (*it).pCtrlVideo->detachVoutWindow( );
 153             (*it).width = (*it).pCtrlVideo->getPosition()->getWidth();
 154             (*it).height = (*it).pCtrlVideo->getPosition()->getHeight();
 155             (*it).pCtrlVideo = NULL;
 156             break;
 157         }
 158     }
 159 }
 160
 161
 162 void VoutManager::requestVout( CtrlVideo* pCtrlVideo )
 163 {
 164     vector<SavedWnd>::iterator it;
 165     for( it = m_SavedWndVec.begin(); it != m_SavedWndVec.end(); it++ )
 166     {
 167         if( (*it).pCtrlVideo == NULL )
 168         {
 169             pCtrlVideo->attachVoutWindow( (*it).pVoutWindow,
 170                                           (*it).width, (*it).height );
 171             (*it).pCtrlVideo = pCtrlVideo;
 172             break;
 173         }
 174     }
 175 }
 176
 177
 178 CtrlVideo* VoutManager::getBestCtrlVideo( )
 179 {
 180     // try to find an unused useable VideoControl
 181
 182     vector<CtrlVideo*>::const_iterator it;
 183     for( it = m_pCtrlVideoVec.begin(); it != m_pCtrlVideoVec.end(); it++ )
 184     {
 185         if( (*it)->isUseable() && !(*it)->isUsed() )
 186         {
 187             return (*it);
 188         }
 189     }
 190
 191     return NULL;
 192 }
 193
 194
 195 void* VoutManager::acceptWnd( vout_window_t* pWnd )
 196 {
 197     int width = (int)pWnd->cfg->width;
 198     int height = (int)pWnd->cfg->height;
 199
 200     // Creation of a dedicated Window per vout thread
 201     VoutWindow* pVoutWindow = new VoutWindow( getIntf(), pWnd, width, height,
 202                                          (GenericWindow*) m_pVoutMainWindow );
 203
 204     void* handle = pVoutWindow->getOSHandle();
 205
 206     // try to find a video Control within the theme
 207     CtrlVideo* pCtrlVideo = getBestCtrlVideo();
 208     if( pCtrlVideo )
 209     {
 210         // A Video Control is available
 211         // directly attach vout thread to it
 212         pCtrlVideo->attachVoutWindow( pVoutWindow );
 213     }
 214     else
 215     {
 216         pVoutWindow->setCtrlVideo( NULL );
 217     }
 218
 219     // save vout characteristics
 220     m_SavedWndVec.push_back( SavedWnd( pWnd, pVoutWindow, pCtrlVideo ) );
 221
 222     msg_Dbg( pWnd, "New vout : handle = %p, Ctrl = %p, w x h = %dx%d",
 223                     handle, pCtrlVideo, width, height );
 224
 225     return handle;
 226 }
 227
 228
 229 void VoutManager::releaseWnd( vout_window_t *pWnd )
 230 {
 231     // remove vout thread from savedVec
 232     vector<SavedWnd>::iterator it;
 233     for( it = m_SavedWndVec.begin(); it != m_SavedWndVec.end(); it++ )
 234     {
 235         if( (*it).pWnd == pWnd )
 236         {
 237             msg_Dbg( getIntf(), "vout released vout=%p, VideoCtrl=%p",
 238                              pWnd, (*it).pCtrlVideo );
 239
 240             // if a video control was being used, detach from it
 241             if( (*it).pCtrlVideo )
 242             {
 243                 (*it).pCtrlVideo->detachVoutWindow( );
 244             }
 245
 246             // remove resources
 247             delete (*it).pVoutWindow;
 248             m_SavedWndVec.erase( it );
 249             break;
 250         }
 251     }
 252 }
 253
 254
 255 void VoutManager::setSizeWnd( vout_window_t *pWnd, int width, int height )
 256 {
 257    msg_Dbg( pWnd, "setSize (%dx%d) received from vout threadr",
 258                   width, height );
 259
 260    vector<SavedWnd>::iterator it;
 261    for( it = m_SavedWndVec.begin(); it != m_SavedWndVec.end(); it++ )
 262    {
 263        if( (*it).pWnd == pWnd )
 264        {
 265            VoutWindow* pVoutWindow = (*it).pVoutWindow;
 266
 267            pVoutWindow->setOriginalWidth( width );
 268            pVoutWindow->setOriginalHeight( height );
 269
 270            CtrlVideo* pCtrlVideo = pVoutWindow->getCtrlVideo();
 271            if( pCtrlVideo )
 272            {
 273                pCtrlVideo->resizeControl( width, height );
 274            }
 275            break;
 276        }
 277    }
 278 }
 279
 280 void VoutManager::setFullscreenWnd( vout_window_t *pWnd, bool b_fullscreen )
 281 {
 282     msg_Dbg( pWnd, "setFullscreen (%d) received from vout thread",
 283                     b_fullscreen ? 1 : 0 );
 284
 285     VlcProc::instance( getIntf() )->setFullscreenVar( b_fullscreen );
 286
 287     if( b_fullscreen )
 288     {
 289         m_pVoutMainWindow->show();
 290     }
 291     else
 292     {
 293         m_pVoutMainWindow->hide();
 294     }
 295 }
 296
 297 // Functions called by window provider
 298 // ///////////////////////////////////
 299
 300 void *VoutManager::getWindow( intf_thread_t *pIntf, vout_window_t *pWnd )
 301 {
 302     // Theme may have been destroyed
 303     if( !pIntf->p_sys->p_theme )
 304         return NULL;
 305
 306     vlc_mutex_lock( &pIntf->p_sys->vout_lock );
 307     pIntf->p_sys->b_vout_ready = false;
 308     pIntf->p_sys->handle = NULL;
 309
 310     CmdNewVoutWindow *pCmd =
 311         new CmdNewVoutWindow( pIntf, pWnd );
 312
 313     AsyncQueue *pQueue = AsyncQueue::instance( pIntf );
 314     pQueue->push( CmdGenericPtr( pCmd ), false );
 315
 316     while( !pIntf->p_sys->b_vout_ready )
 317         vlc_cond_wait( &pIntf->p_sys->vout_wait, &pIntf->p_sys->vout_lock );
 318
 319     void* handle = pIntf->p_sys->handle;
 320     vlc_mutex_unlock( &pIntf->p_sys->vout_lock );
 321
 322     return handle;
 323 }
 324
 325
 326 void VoutManager::releaseWindow( intf_thread_t *pIntf, vout_window_t *pWnd )
 327 {
 328     vlc_mutex_lock( &pIntf->p_sys->vout_lock );
 329     pIntf->p_sys->b_vout_ready = false;
 330
 331     CmdReleaseVoutWindow *pCmd =
 332         new CmdReleaseVoutWindow( pIntf, pWnd );
 333
 334     AsyncQueue *pQueue = AsyncQueue::instance( pIntf );
 335     pQueue->push( CmdGenericPtr( pCmd ), false );
 336
 337     while( !pIntf->p_sys->b_vout_ready )
 338         vlc_cond_wait( &pIntf->p_sys->vout_wait, &pIntf->p_sys->vout_lock );
 339
 340     vlc_mutex_unlock( &pIntf->p_sys->vout_lock );
 341 }
 342
 343
 344 int VoutManager::controlWindow( struct vout_window_t *pWnd,
 345                             int query, va_list args )
 346 {
 347     intf_thread_t *pIntf = (intf_thread_t *)pWnd->sys;
 348     VoutManager *pThis = pIntf->p_sys->p_voutManager;
 349
 350     switch( query )
 351     {
 352         case VOUT_WINDOW_SET_SIZE:
 353         {
 354             unsigned int i_width  = va_arg( args, unsigned int );
 355             unsigned int i_height = va_arg( args, unsigned int );
 356
 357             if( i_width && i_height )
 358             {
 359                 // Post a vout resize command
 360                 CmdResizeVout *pCmd =
 361                     new CmdResizeVout( pThis->getIntf(),
 362                                         pWnd, (int)i_width, (int)i_height );
 363                 AsyncQueue *pQueue =
 364                    AsyncQueue::instance( pThis->getIntf() );
 365                 pQueue->push( CmdGenericPtr( pCmd ) );
 366             }
 367             return VLC_EGENERIC;
 368         }
 369
 370         case VOUT_WINDOW_SET_FULLSCREEN:
 371         {
 372             bool b_fullscreen = va_arg( args, int );
 373
 374             // Post a vout resize command
 375             CmdSetFullscreen* pCmd =
 376                 new CmdSetFullscreen( pThis->getIntf(), pWnd, b_fullscreen );
 377
 378             AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 379             pQueue->push( CmdGenericPtr( pCmd ) );
 380
 381             return VLC_SUCCESS;
 382         }
 383
 384         case VOUT_WINDOW_SET_STATE:
 385         {
 386             unsigned i_arg = va_arg( args, unsigned );
 387             unsigned on_top = i_arg & VOUT_WINDOW_STATE_ABOVE;
 388
 389             // Post a SetOnTop command
 390             CmdSetOnTop* pCmd =
 391                 new CmdSetOnTop( pThis->getIntf(), on_top );
 392
 393             AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 394             pQueue->push( CmdGenericPtr( pCmd ) );
 395
 396             return VLC_SUCCESS;
 397         }
 398
 399
 400         default:
 401             msg_Dbg( pWnd, "control query not supported" );
 402             return VLC_EGENERIC;
 403     }
 404 }
 405