git.sesse.net Git - vlc/blob - modules/video_output/qte/qte.cpp

   1 /*****************************************************************************
   2  * qte.cpp : QT Embedded plugin for vlc
   3  *****************************************************************************
   4  * Copyright (C) 1998-2002 VideoLAN
   5  * $Id: qte.cpp,v 1.7 2002/12/11 21:50:03 jpsaman Exp $
   6  *
   7  * Authors: Gerald Hansink <gerald.hansink@ordain.nl>
   8  *          Jean-Paul Saman <jpsaman@wxs.nl>
   9  *
  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.
  14  *
  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.
  19  *
  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., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28
  29 /*****************************************************************************
  30  * notes:
  31  * - written for ipaq, so hardcoded assumptions specific for ipaq...
  32  * - runs full screen
  33  * - no "mouse events" handling
  34  * - etc.
  35  *****************************************************************************/
  36
  37 extern "C"
  38 {
  39 #include <errno.h>                                                 /* ENOMEM */
  40 #include <stdlib.h>                                                /* free() */
  41 #include <string.h>                                                /* strerror() */
  42
  43 #include <vlc/vlc.h>
  44 #include <vlc/intf.h>
  45 #include <vlc/vout.h>
  46
  47 #ifdef HAVE_MACHINE_PARAM_H
  48     /* BSD */
  49 #   include <machine/param.h>
  50 #   include <sys/types.h>                                  /* typedef ushort */
  51 #   include <sys/ipc.h>
  52 #endif
  53
  54 #ifndef WIN32
  55 #   include <netinet/in.h>                            /* BSD: struct in_addr */
  56 #endif
  57
  58 #ifdef HAVE_SYS_SHM_H
  59 #   include <sys/shm.h>                                /* shmget(), shmctl() */
  60 #endif
  61 } /* extern "C" */
  62
  63 #include <qapplication.h>
  64 #include <qpainter.h>
  65
  66 #ifdef Q_WS_QWS
  67 # define USE_DIRECT_PAINTER
  68 # include <qdirectpainter_qws.h>
  69 # include <qgfxraster_qws.h>
  70 #endif
  71
  72 extern "C"
  73 {
  74 #include "netutils.h"                                 /* network_ChannelJoin */
  75 #include "qte.h"
  76
  77 /*****************************************************************************
  78  * Module descriptor
  79  *****************************************************************************/
  80 #define ALT_FS_TEXT N_("alternate fullscreen method")
  81 #define ALT_FS_LONGTEXT N_( \
  82     "There are two ways to make a fullscreen window, unfortunately each one " \
  83     "has its drawbacks.\n" \
  84     "1) Let the window manager handle your fullscreen window (default). But " \
  85     "things like taskbars will likely show on top of the video.\n" \
  86     "2) Completly bypass the window manager, but then nothing will be able " \
  87     "to show on top of the video.")
  88 #define DISPLAY_TEXT N_("QT Embedded display name")
  89 #define DISPLAY_LONGTEXT N_( \
  90     "Specify the Qt Embedded hardware display you want to use. By default vlc will " \
  91     "use the value of the DISPLAY environment variable.")
  92 #define DRAWABLE_TEXT N_("QT Embedded drawable")
  93 #define DRAWABLE_LONGTEXT N_( \
  94     "Specify a QT Embedded drawable to use instead of opening a new window. This " \
  95     "option is DANGEROUS, use with care.")
  96
  97 /*****************************************************************************
  98  * Local prototypes
  99  *****************************************************************************/
 100 static int  Open      ( vlc_object_t * );
 101 static void Close     ( vlc_object_t * );
 102 static void Render    ( vout_thread_t *, picture_t * );
 103 static void Display   ( vout_thread_t *, picture_t * );
 104 static int  Manage    ( vout_thread_t * );
 105 static int  Init      ( vout_thread_t * );
 106 static void End       ( vout_thread_t * );
 107
 108 static int  CreateQtWindow ( vout_thread_t * );
 109 static void DestroyQtWindow( vout_thread_t * );
 110
 111 static int  NewPicture     ( vout_thread_t *, picture_t * );
 112 static void FreePicture    ( vout_thread_t *, picture_t * );
 113
 114 static void ToggleFullScreen      ( vout_thread_t * );
 115
 116 static void RunQtThread( event_thread_t *p_event );
 117 } /* extern "C" */
 118
 119 /*****************************************************************************
 120 * Exported prototypes
 121 *****************************************************************************/
 122 extern "C"
 123 {
 124
 125 vlc_module_begin();
 126     add_category_hint( N_("QT Embedded"), NULL );
 127     add_string( "qte-display", "portrait", NULL, DISPLAY_TEXT, DISPLAY_LONGTEXT);
 128     add_bool( "qte-altfullscreen", 0, NULL, ALT_FS_TEXT, ALT_FS_LONGTEXT);
 129 //    add_integer( "qte-drawable", -1, NULL, NULL, NULL); //DRAWABLE_TEXT, DRAWABLE_LONGTEXT );
 130     set_description( _("QT Embedded module") );
 131     set_capability( "video output", 30 );
 132     set_callbacks( Open, Close);
 133 vlc_module_end();
 134
 135 } /* extern "C" */
 136
 137 /*****************************************************************************
 138  * Seeking function TODO: put this in a generic location !
 139  *****************************************************************************/
 140 static inline void vout_Seek( off_t i_seek )
 141 {
 142 }
 143
 144 /*****************************************************************************
 145  * Open: allocate video thread output method
 146  *****************************************************************************/
 147 static int Open( vlc_object_t *p_this )
 148 {
 149     vout_thread_t * p_vout = (vout_thread_t *)p_this;
 150
 151     /* Allocate structure */
 152     p_vout->p_sys = (struct vout_sys_t*) malloc( sizeof( struct vout_sys_t ) );
 153
 154     if( p_vout->p_sys == NULL )
 155     {
 156         msg_Err( p_vout, "out of memory" );
 157         return( 1 );
 158     }
 159
 160 //    memset(p_vout->p_sys, 0, sizeof( struct vout_sys_t ));
 161     p_vout->pf_init    = Init;
 162     p_vout->pf_end     = End;
 163     p_vout->pf_manage  = NULL; //Manage;
 164     p_vout->pf_render  = NULL; //Render;
 165     p_vout->pf_display = Display;
 166
 167     CreateQtWindow(p_vout);
 168     return( 0 );
 169 }
 170
 171 /*****************************************************************************
 172  * CloseVideo: destroy Sys video thread output method
 173  *****************************************************************************
 174  * Terminate an output method created by Open
 175  *****************************************************************************/
 176 static void Close ( vlc_object_t *p_this )
 177 {
 178     vout_thread_t * p_vout = (vout_thread_t *)p_this;
 179
 180     msg_Err( p_vout, "Close" );
 181     DestroyQtWindow(p_vout);
 182     free(p_vout->p_sys);
 183 }
 184
 185 /*****************************************************************************
 186  * Init: initialize video thread output method
 187  *****************************************************************************
 188  * This function create the buffers needed by the output thread. It is called
 189  * at the beginning of the thread, but also each time the window is resized.
 190  *****************************************************************************/
 191 static int Init( vout_thread_t *p_vout )
 192 {
 193     int         i_index;
 194     picture_t*  p_pic;
 195     char                *psz_display;
 196     int         dd = QPixmap::defaultDepth();
 197
 198     I_OUTPUTPICTURES = 0;
 199
 200     p_vout->output.i_chroma = (dd == 16) ? VLC_FOURCC('R','V','1','6'): VLC_FOURCC('R','V','3','2');
 201     p_vout->output.i_rmask  = 0xf800;
 202     p_vout->output.i_gmask  = 0x07e0;
 203     p_vout->output.i_bmask  = 0x001f;
 204
 205     psz_display = config_GetPsz(p_vout, "qte-display");
 206     if( strncmp(psz_display, "portrait", 8)==0 )
 207     {
 208          /* All we have is an RGB image with square pixels */
 209          p_vout->output.i_width  = p_vout->p_sys->i_width;
 210          p_vout->output.i_height = p_vout->p_sys->i_height;
 211          p_vout->output.i_aspect = p_vout->output.i_width
 212                                     * VOUT_ASPECT_FACTOR
 213                                     / p_vout->output.i_height;
 214     }
 215     else
 216     {
 217          /* We may need to convert the chroma, but at least we keep the
 218           * aspect ratio */
 219          p_vout->output.i_width  = p_vout->render.i_width;
 220          p_vout->output.i_height = p_vout->render.i_height;
 221          p_vout->output.i_aspect = p_vout->render.i_aspect;
 222     }
 223
 224     /* Try to initialize MAX_DIRECTBUFFERS direct buffers */
 225     while( I_OUTPUTPICTURES < QTE_MAX_DIRECTBUFFERS )
 226     {
 227         p_pic = NULL;
 228
 229         /* Find an empty picture slot */
 230         for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
 231         {
 232             if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
 233             {
 234                 p_pic = p_vout->p_picture + i_index;
 235                 break;
 236             }
 237         }
 238
 239         /* Allocate the picture */
 240         if( p_pic == NULL ||  NewPicture( p_vout, p_pic ) )
 241         {
 242             break;
 243         }
 244
 245         p_pic->i_status = DESTROYED_PICTURE;
 246         p_pic->i_type   = DIRECT_PICTURE;
 247
 248         PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
 249
 250         I_OUTPUTPICTURES++;
 251     }
 252
 253     return( 0 );
 254 }
 255
 256
 257 /*****************************************************************************
 258  * Render: render previously calculated output
 259  *****************************************************************************/
 260 static void Render( vout_thread_t *p_vout, picture_t *p_pic )
 261 {
 262     ;
 263 }
 264
 265 /*****************************************************************************
 266  * Display: displays previously rendered output
 267  *****************************************************************************
 268  * This function sends the currently rendered image to screen.
 269  *****************************************************************************/
 270 static void Display( vout_thread_t *p_vout, picture_t *p_pic )
 271 {
 272     unsigned int x, y, w, h;
 273
 274     vout_PlacePicture( p_vout, p_vout->p_sys->i_width, p_vout->p_sys->i_height,
 275                        &x, &y, &w, &h );
 276
 277     if(p_vout->p_sys->pcVoutWidget)
 278     {
 279 // shameless borrowed from opie mediaplayer....
 280 #ifndef USE_DIRECT_PAINTER
 281         QPainter p(p_vout->p_sys->pcVoutWidget);
 282
 283         /* rotate frame */
 284         int dd      = QPixmap::defaultDepth();
 285         int bytes   = ( dd == 16 ) ? 2 : 4;
 286         int rw = h, rh = w;
 287
 288         QImage rotatedFrame( rw, rh, bytes << 3 );
 289
 290         ushort* in  = (ushort*)p_pic->p_sys->pQImage->bits();
 291         ushort* out = (ushort*)rotatedFrame.bits();
 292
 293         int spl = rotatedFrame.bytesPerLine() / bytes;
 294         for (int x=0; x<h; x++)
 295         {
 296             if ( bytes == 2 )
 297             {
 298                 ushort* lout = out++ + (w - 1)*spl;
 299                 for (int y=0; y<w; y++)
 300                 {
 301                     *lout=*in++;
 302                     lout-=spl;
 303                 }
 304             }
 305             else
 306             {
 307                 ulong* lout = ((ulong *)out)++ + (w - 1)*spl;
 308                 for (int y=0; y<w; y++)
 309                 {
 310                     *lout=*((ulong*)in)++;
 311                     lout-=spl;
 312                 }
 313             }
 314         }
 315
 316         p.drawImage( x, y, rotatedFrame, 0, 0, rw, rh );
 317 #else
 318         QDirectPainter p(p_vout->p_sys->pcVoutWidget);
 319
 320         // just copy the image to the frame buffer...
 321         memcpy(p.frameBuffer(), (p_pic->p_sys->pQImage->jumpTable())[0], h * p.lineStep());
 322 #endif
 323     }
 324 }
 325
 326 /*****************************************************************************
 327  * Manage: handle X11 events
 328  *****************************************************************************
 329  * This function should be called regularly by video output thread. It manages
 330  * X11 events and allows window resizing. It returns a non null value on
 331  * error.
 332  *****************************************************************************/
 333 static int Manage( vout_thread_t *p_vout )
 334 {
 335     return 0;
 336 }
 337
 338 /*****************************************************************************
 339  * End: terminate video thread output method
 340  *****************************************************************************
 341  * Destroy the buffers created by vout_Init. It is called at the end of
 342  * the thread, but also each time the window is resized.
 343  *****************************************************************************/
 344 static void End( vout_thread_t *p_vout )
 345 {
 346     int i_index;
 347
 348     /* Free the direct buffers we allocated */
 349     for( i_index = I_OUTPUTPICTURES ; i_index ; )
 350     {
 351         i_index--;
 352         FreePicture( p_vout, PP_OUTPUTPICTURE[ i_index ] );
 353     }
 354 }
 355
 356
 357 /*****************************************************************************
 358  * NewPicture: allocate a picture
 359  *****************************************************************************
 360  * Returns 0 on success, -1 otherwise
 361  *****************************************************************************/
 362 static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
 363 {
 364     int dd = QPixmap::defaultDepth();
 365
 366     msg_Dbg(p_vout, "+NewPicture::dd = %d",dd );
 367
 368     p_pic->p_sys = (picture_sys_t*) malloc( sizeof( picture_sys_t ) );
 369
 370     if( p_pic->p_sys == NULL )
 371     {
 372         return -1;
 373     }
 374
 375     switch(p_vout->output.i_chroma)
 376     {
 377     case VLC_FOURCC('R','V','1','6'):
 378         if(dd == 16)
 379         {
 380             p_pic->p_sys->pQImage = new QImage(p_vout->output.i_width,
 381                                                p_vout->output.i_height,
 382                                                dd );
 383
 384             if(p_pic->p_sys->pQImage == NULL)
 385             {
 386                 return -1;
 387             }
 388
 389             p_pic->p->p_pixels = (p_pic->p_sys->pQImage->jumpTable())[0];
 390
 391             p_pic->p->i_pitch = p_pic->p_sys->pQImage->bytesPerLine();
 392
 393             p_pic->p->i_lines = p_vout->output.i_height;
 394             p_pic->p->i_pixel_pitch   = 2;
 395             p_pic->p->i_visible_pitch = 0;
 396 //            p_pic->p->i_pixel_bytes = 2;
 397 //            p_pic->p->b_margin      = 0;
 398             p_pic->i_planes         = 1;
 399         }
 400         else
 401         {
 402             return -1;
 403         }
 404         break;
 405     case VLC_FOURCC('R','V','3','2'):
 406         if(dd == 32)
 407         {
 408             p_pic->p_sys->pQImage = new QImage(p_vout->output.i_width,
 409                                                p_vout->output.i_height,
 410                                                dd );
 411
 412             if(p_pic->p_sys->pQImage == NULL)
 413             {
 414                 return -1;
 415             }
 416
 417             p_pic->p->p_pixels = (p_pic->p_sys->pQImage->jumpTable())[0];
 418
 419             p_pic->p->i_pitch = p_pic->p_sys->pQImage->bytesPerLine();
 420
 421             p_pic->p->i_lines = p_vout->output.i_height;
 422             p_pic->p->i_pixel_pitch   = 4;
 423             p_pic->p->i_visible_pitch = 0;
 424 //            p_pic->p->i_pixel_bytes = 4;
 425 //            p_pic->p->b_margin      = 0;
 426             p_pic->i_planes         = 1;
 427         }
 428         else
 429         {
 430             return -1;
 431         }
 432         break;
 433     default:
 434         return -1;
 435         break;
 436     }
 437
 438     msg_Dbg(p_vout, "-NewPicture: %d %d %d",p_vout->output.i_width,
 439                                  p_vout->output.i_height,
 440                                  p_vout->output.i_chroma );
 441
 442     return 0;
 443 }
 444
 445 /*****************************************************************************
 446  * FreePicture: destroy a picture allocated with NewPicture
 447  *****************************************************************************/
 448 static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
 449 {
 450     delete p_pic->p_sys->pQImage;
 451 }
 452
 453 /*****************************************************************************
 454  * ToggleFullScreen: Enable or disable full screen mode
 455  *****************************************************************************
 456  * This function will switch between fullscreen and window mode.
 457  *
 458  *****************************************************************************/
 459 static void ToggleFullScreen ( vout_thread_t *p_vout )
 460 {
 461 }
 462
 463
 464 /*****************************************************************************
 465  * CreateQtWindow: create qte applicaton / window
 466  *****************************************************************************
 467  * Create a window according to video output given size, and set other
 468  * properties according to the display properties.
 469  *****************************************************************************/
 470 static int CreateQtWindow( vout_thread_t *p_vout )
 471 {
 472     /* for displaying the vout in a qt window we need the QtApplication */
 473     p_vout->p_sys->pcVoutWidget = NULL;
 474     msg_Dbg( p_vout, "creating RunQtThread" );
 475
 476     p_vout->p_sys->p_event = (event_thread_t*) vlc_object_create( p_vout, sizeof(event_thread_t) );
 477     p_vout->p_sys->p_event->p_vout = p_vout;
 478
 479     /* Initializations */
 480     p_vout->p_sys->i_width  = 320;
 481     p_vout->p_sys->i_height = 240;
 482
 483     /* create thread to exec the qpe application */
 484     if ( vlc_thread_create( p_vout->p_sys->p_event, "QT Embedded Thread",
 485                                                         RunQtThread,
 486                             VLC_THREAD_PRIORITY_OUTPUT, VLC_TRUE) )
 487     {
 488         msg_Err( p_vout, "cannot create QT Embedded Thread" );
 489         vlc_object_destroy( p_vout->p_sys->p_event );
 490         p_vout->p_sys->p_event = NULL;
 491         goto error;
 492     }
 493
 494     if( p_vout->p_sys->p_event->b_error )
 495     {
 496         msg_Err( p_vout, "RunQtThread failed" );
 497         goto error;
 498     }
 499
 500     vlc_object_attach( p_vout->p_sys->p_event, p_vout );
 501     msg_Dbg( p_vout, "RunQtThread running" );
 502
 503     // just wait until the crew is complete...
 504     while(p_vout->p_sys->pcVoutWidget == NULL)
 505     {
 506         msleep(1);
 507     }
 508
 509     return VLC_SUCCESS;
 510
 511  error:
 512     Close( VLC_OBJECT(p_vout) );
 513     return VLC_EGENERIC;
 514 }
 515
 516
 517 /*****************************************************************************
 518  * DestroyQtWindow: destroy the window
 519  *****************************************************************************/
 520 static void DestroyQtWindow( vout_thread_t *p_vout )
 521 {
 522     // quit qt application loop
 523     if(p_vout->p_sys->pcQApplication)
 524     {
 525         if(p_vout->p_sys->bOwnsQApp)
 526         {
 527             p_vout->p_sys->pcQApplication->quit();
 528         }
 529         else
 530         {
 531             p_vout->p_sys->bRunning = FALSE;
 532         }
 533
 534         while(p_vout->p_sys->pcVoutWidget)
 535         {
 536             msleep(1);
 537         }
 538     }
 539 }
 540
 541 /*****************************************************************************
 542  * main loop of qtapplication
 543  *****************************************************************************/
 544 static void RunQtThread(event_thread_t *p_event)
 545 {
 546     int     argc    = 0;
 547
 548     msg_Dbg( p_event->p_vout, "+qte::RunQtThread" );
 549
 550     if(qApp == NULL)
 551     {
 552         QApplication* pApp = new QApplication(argc, NULL);
 553         if(pApp)
 554         {
 555             p_event->p_vout->p_sys->pcQApplication = pApp;
 556             p_event->p_vout->p_sys->bOwnsQApp = TRUE;
 557         }
 558         msg_Dbg( p_event->p_vout, "RunQtThread application created" );
 559     }
 560     else
 561     {
 562         p_event->p_vout->p_sys->pcQApplication = qApp;
 563         msg_Dbg( p_event->p_vout, "RunQtThread applicaton attached" );
 564     }
 565
 566     /* signal the creation of the window */
 567     vlc_thread_ready( p_event );
 568     msg_Dbg( p_event->p_vout, "+qte::RunQtThread ready" );
 569
 570     if (p_event->p_vout->p_sys->pcQApplication)
 571     {
 572         QWidget vo(0, "qte");
 573         vo.showFullScreen();
 574         vo.show();
 575         p_event->p_vout->p_sys->pcVoutWidget = &vo;
 576         p_event->p_vout->p_sys->bRunning = TRUE;
 577
 578         if(p_event->p_vout->p_sys->bOwnsQApp)
 579         {
 580             // run the main loop of qtapplication until someone says: 'quit'
 581             p_event->p_vout->p_sys->pcQApplication->exec();
 582         }
 583         else
 584         {
 585             while(!p_event->b_die && p_event->p_vout->p_sys->bRunning)
 586                         {
 587                    /* Check if we are asked to exit */
 588                if( p_event->b_die )
 589                    break;
 590
 591                                 msleep(100);
 592                         }
 593         }
 594     }
 595
 596     p_event->p_vout->p_sys->pcVoutWidget = NULL;
 597
 598     if(p_event->p_vout->p_sys->bOwnsQApp)
 599     {
 600         delete p_event->p_vout->p_sys->pcQApplication;
 601         p_event->p_vout->p_sys->pcQApplication = NULL;
 602     }
 603
 604     msg_Dbg( p_event->p_vout, "-qte::RunQtThread terminating" );
 605 }
 606