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 1.8 2002/12/24 19:25:54 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", "landscape", 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     if( p_vout->p_sys->p_event )
 182     {
 183         vlc_object_detach( p_vout->p_sys->p_event );
 184
 185         /* Kill RunQtThread */
 186         p_vout->p_sys->p_event->b_die = VLC_TRUE;
 187         DestroyQtWindow(p_vout);
 188
 189         vlc_thread_join( p_vout->p_sys->p_event );
 190         vlc_object_destroy( p_vout->p_sys->p_event );
 191     }
 192
 193     if( p_vout->p_sys )
 194     {
 195         free( p_vout->p_sys );
 196         p_vout->p_sys = NULL;
 197     }
 198 }
 199
 200 /*****************************************************************************
 201  * Init: initialize video thread output method
 202  *****************************************************************************
 203  * This function create the buffers needed by the output thread. It is called
 204  * at the beginning of the thread, but also each time the window is resized.
 205  *****************************************************************************/
 206 static int Init( vout_thread_t *p_vout )
 207 {
 208     int         i_index;
 209     picture_t*  p_pic;
 210     int         dd = QPixmap::defaultDepth();
 211
 212     I_OUTPUTPICTURES = 0;
 213
 214     p_vout->output.i_chroma = (dd == 16) ? VLC_FOURCC('R','V','1','6'): VLC_FOURCC('R','V','3','2');
 215     p_vout->output.i_rmask  = 0xf800;
 216     p_vout->output.i_gmask  = 0x07e0;
 217     p_vout->output.i_bmask  = 0x001f;
 218
 219     /* We may need to convert the chroma, but at least we keep the
 220      * aspect ratio */
 221     p_vout->output.i_width  = p_vout->p_sys->i_width;
 222     p_vout->output.i_height = p_vout->p_sys->i_height;
 223     p_vout->output.i_aspect = p_vout->render.i_aspect;
 224
 225     /* Try to initialize MAX_DIRECTBUFFERS direct buffers */
 226     while( I_OUTPUTPICTURES < QTE_MAX_DIRECTBUFFERS )
 227     {
 228         p_pic = NULL;
 229
 230         /* Find an empty picture slot */
 231         for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
 232         {
 233             if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
 234             {
 235                 p_pic = p_vout->p_picture + i_index;
 236                 break;
 237             }
 238         }
 239
 240         /* Allocate the picture */
 241         if( p_pic == NULL ||  NewPicture( p_vout, p_pic ) )
 242         {
 243             break;
 244         }
 245
 246         p_pic->i_status = DESTROYED_PICTURE;
 247         p_pic->i_type   = DIRECT_PICTURE;
 248
 249         PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
 250
 251         I_OUTPUTPICTURES++;
 252     }
 253
 254     return( 0 );
 255 }
 256
 257
 258 /*****************************************************************************
 259  * Render: render previously calculated output
 260  *****************************************************************************/
 261 static void Render( vout_thread_t *p_vout, picture_t *p_pic )
 262 {
 263     ;
 264 }
 265
 266 /*****************************************************************************
 267  * Display: displays previously rendered output
 268  *****************************************************************************
 269  * This function sends the currently rendered image to screen.
 270  *****************************************************************************/
 271 static void Display( vout_thread_t *p_vout, picture_t *p_pic )
 272 {
 273     unsigned int x, y, w, h;
 274
 275     vout_PlacePicture( p_vout, p_vout->p_sys->i_width, p_vout->p_sys->i_height,
 276                        &x, &y, &w, &h );
 277
 278     msg_Err(p_vout, "+qte::Display( p_vout, i_width=%d, i_height=%d, x=%u, y=%u, w=%u, h=%u",
 279                                         p_vout->p_sys->i_width, p_vout->p_sys->i_height, x, y, w, h );
 280
 281     if(p_vout->p_sys->pcVoutWidget)
 282     {
 283 // shameless borrowed from opie mediaplayer....
 284 #ifndef USE_DIRECT_PAINTER
 285         QPainter p(p_vout->p_sys->pcVoutWidget);
 286
 287         /* rotate frame */
 288         int dd      = QPixmap::defaultDepth();
 289         int bytes   = ( dd == 16 ) ? 2 : 4;
 290         int rw = h, rh = w;
 291
 292         QImage rotatedFrame( rw, rh, bytes << 3 );
 293
 294         ushort* in  = (ushort*)p_pic->p_sys->pQImage->bits();
 295         ushort* out = (ushort*)rotatedFrame.bits();
 296
 297         int spl = rotatedFrame.bytesPerLine() / bytes;
 298         for (int x=0; x<h; x++)
 299         {
 300             if ( bytes == 2 )
 301             {
 302                 ushort* lout = out++ + (w - 1)*spl;
 303                 for (int y=0; y<w; y++)
 304                 {
 305                     *lout=*in++;
 306                     lout-=spl;
 307                 }
 308             }
 309             else
 310             {
 311                 ulong* lout = ((ulong *)out)++ + (w - 1)*spl;
 312                 for (int y=0; y<w; y++)
 313                 {
 314                     *lout=*((ulong*)in)++;
 315                     lout-=spl;
 316                 }
 317             }
 318         }
 319
 320         p.drawImage( x, y, rotatedFrame, 0, 0, rw, rh );
 321 #else
 322         QDirectPainter p(p_vout->p_sys->pcVoutWidget);
 323
 324         // just copy the image to the frame buffer...
 325         memcpy(p.frameBuffer(), (p_pic->p_sys->pQImage->jumpTable())[0], h * p.lineStep());
 326 #endif
 327     }
 328     msg_Err(p_vout, "-qte::Display" );
 329
 330 }
 331
 332 /*****************************************************************************
 333  * Manage: handle X11 events
 334  *****************************************************************************
 335  * This function should be called regularly by video output thread. It manages
 336  * X11 events and allows window resizing. It returns a non null value on
 337  * error.
 338  *****************************************************************************/
 339 static int Manage( vout_thread_t *p_vout )
 340 {
 341     return 0;
 342 }
 343
 344 /*****************************************************************************
 345  * End: terminate video thread output method
 346  *****************************************************************************
 347  * Destroy the buffers created by vout_Init. It is called at the end of
 348  * the thread, but also each time the window is resized.
 349  *****************************************************************************/
 350 static void End( vout_thread_t *p_vout )
 351 {
 352     int i_index;
 353
 354     /* Free the direct buffers we allocated */
 355     for( i_index = I_OUTPUTPICTURES ; i_index ; )
 356     {
 357         i_index--;
 358         FreePicture( p_vout, PP_OUTPUTPICTURE[ i_index ] );
 359     }
 360 }
 361
 362
 363 /*****************************************************************************
 364  * NewPicture: allocate a picture
 365  *****************************************************************************
 366  * Returns 0 on success, -1 otherwise
 367  *****************************************************************************/
 368 static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
 369 {
 370     int dd = QPixmap::defaultDepth();
 371
 372     msg_Dbg(p_vout, "+NewPicture::dd = %d",dd );
 373
 374     p_pic->p_sys = (picture_sys_t*) malloc( sizeof( picture_sys_t ) );
 375
 376     if( p_pic->p_sys == NULL )
 377     {
 378         return -1;
 379     }
 380
 381     switch(p_vout->output.i_chroma)
 382     {
 383     case VLC_FOURCC('R','V','1','6'):
 384         if(dd == 16)
 385         {
 386             p_pic->p_sys->pQImage = new QImage(p_vout->output.i_width,
 387                                                p_vout->output.i_height,
 388                                                dd );
 389
 390             if(p_pic->p_sys->pQImage == NULL)
 391             {
 392                 return -1;
 393             }
 394
 395             p_pic->p->p_pixels = (p_pic->p_sys->pQImage->jumpTable())[0];
 396
 397             p_pic->p->i_pitch = p_pic->p_sys->pQImage->bytesPerLine();
 398
 399             p_pic->p->i_lines = p_vout->output.i_height;
 400             p_pic->p->i_pixel_pitch   = 2;
 401             p_pic->p->i_visible_pitch = 0;
 402 //            p_pic->p->i_pixel_bytes = 2;
 403 //            p_pic->p->b_margin      = 0;
 404             p_pic->i_planes         = 1;
 405         }
 406         else
 407         {
 408             return -1;
 409         }
 410         break;
 411     case VLC_FOURCC('R','V','3','2'):
 412         if(dd == 32)
 413         {
 414             p_pic->p_sys->pQImage = new QImage(p_vout->output.i_width,
 415                                                p_vout->output.i_height,
 416                                                dd );
 417
 418             if(p_pic->p_sys->pQImage == NULL)
 419             {
 420                 return -1;
 421             }
 422
 423             p_pic->p->p_pixels = (p_pic->p_sys->pQImage->jumpTable())[0];
 424
 425             p_pic->p->i_pitch = p_pic->p_sys->pQImage->bytesPerLine();
 426
 427             p_pic->p->i_lines = p_vout->output.i_height;
 428             p_pic->p->i_pixel_pitch   = 4;
 429             p_pic->p->i_visible_pitch = 0;
 430 //            p_pic->p->i_pixel_bytes = 4;
 431 //            p_pic->p->b_margin      = 0;
 432             p_pic->i_planes         = 1;
 433         }
 434         else
 435         {
 436             return -1;
 437         }
 438         break;
 439     default:
 440         return -1;
 441         break;
 442     }
 443
 444     msg_Dbg(p_vout, "-NewPicture: %d %d %d",p_vout->output.i_width,
 445                                  p_vout->output.i_height,
 446                                  p_vout->output.i_chroma );
 447
 448     return 0;
 449 }
 450
 451 /*****************************************************************************
 452  * FreePicture: destroy a picture allocated with NewPicture
 453  *****************************************************************************/
 454 static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
 455 {
 456     delete p_pic->p_sys->pQImage;
 457 }
 458
 459 /*****************************************************************************
 460  * ToggleFullScreen: Enable or disable full screen mode
 461  *****************************************************************************
 462  * This function will switch between fullscreen and window mode.
 463  *
 464  *****************************************************************************/
 465 static void ToggleFullScreen ( vout_thread_t *p_vout )
 466 {
 467 }
 468
 469
 470 /*****************************************************************************
 471  * CreateQtWindow: create qte applicaton / window
 472  *****************************************************************************
 473  * Create a window according to video output given size, and set other
 474  * properties according to the display properties.
 475  *****************************************************************************/
 476 static int CreateQtWindow( vout_thread_t *p_vout )
 477 {
 478     /* for displaying the vout in a qt window we need the QtApplication */
 479     p_vout->p_sys->pcVoutWidget = NULL;
 480     msg_Dbg( p_vout, "creating RunQtThread" );
 481
 482     p_vout->p_sys->p_event = (event_thread_t*) vlc_object_create( p_vout, sizeof(event_thread_t) );
 483     p_vout->p_sys->p_event->p_vout = p_vout;
 484
 485     /* Initializations */
 486     p_vout->p_sys->i_width  = 320;
 487     p_vout->p_sys->i_height = 240;
 488
 489     /* create thread to exec the qpe application */
 490     if ( vlc_thread_create( p_vout->p_sys->p_event, "QT Embedded Thread",
 491                                                         RunQtThread,
 492                             VLC_THREAD_PRIORITY_OUTPUT, VLC_TRUE) )
 493     {
 494         msg_Err( p_vout, "cannot create QT Embedded Thread" );
 495         vlc_object_destroy( p_vout->p_sys->p_event );
 496         p_vout->p_sys->p_event = NULL;
 497         goto error;
 498     }
 499
 500     if( p_vout->p_sys->p_event->b_error )
 501     {
 502         msg_Err( p_vout, "RunQtThread failed" );
 503         goto error;
 504     }
 505
 506     vlc_object_attach( p_vout->p_sys->p_event, p_vout );
 507     msg_Dbg( p_vout, "RunQtThread running" );
 508
 509     // just wait until the crew is complete...
 510     while(p_vout->p_sys->pcVoutWidget == NULL)
 511     {
 512         msleep(1);
 513     }
 514
 515     return VLC_SUCCESS;
 516
 517  error:
 518     Close( VLC_OBJECT(p_vout) );
 519     return VLC_EGENERIC;
 520 }
 521
 522
 523 /*****************************************************************************
 524  * DestroyQtWindow: destroy the window
 525  *****************************************************************************/
 526 static void DestroyQtWindow( vout_thread_t *p_vout )
 527 {
 528     // quit qt application loop
 529     if(p_vout->p_sys->pcQApplication)
 530     {
 531         if(p_vout->p_sys->bOwnsQApp)
 532         {
 533             p_vout->p_sys->pcQApplication->quit();
 534         }
 535         else
 536         {
 537             p_vout->p_sys->bRunning = FALSE;
 538         }
 539
 540         while(p_vout->p_sys->pcVoutWidget)
 541         {
 542             msleep(1);
 543         }
 544     }
 545 }
 546
 547 /*****************************************************************************
 548  * main loop of qtapplication
 549  *****************************************************************************/
 550 static void RunQtThread(event_thread_t *p_event)
 551 {
 552     int     argc    = 0;
 553
 554     msg_Dbg( p_event->p_vout, "+qte::RunQtThread" );
 555
 556     if(qApp == NULL)
 557     {
 558         QApplication* pApp = new QApplication(argc, NULL);
 559         if(pApp)
 560         {
 561             p_event->p_vout->p_sys->pcQApplication = pApp;
 562             p_event->p_vout->p_sys->bOwnsQApp = TRUE;
 563         }
 564         msg_Dbg( p_event->p_vout, "RunQtThread application created" );
 565     }
 566     else
 567     {
 568         p_event->p_vout->p_sys->pcQApplication = qApp;
 569         msg_Dbg( p_event->p_vout, "RunQtThread applicaton attached" );
 570     }
 571
 572     /* signal the creation of the window */
 573     vlc_thread_ready( p_event );
 574     msg_Dbg( p_event->p_vout, "+qte::RunQtThread ready" );
 575
 576     if (p_event->p_vout->p_sys->pcQApplication)
 577     {
 578         QWidget vo(0, "qte");
 579         vo.showFullScreen();
 580         vo.show();
 581         p_event->p_vout->p_sys->pcVoutWidget = &vo;
 582         p_event->p_vout->p_sys->bRunning = TRUE;
 583
 584         if(p_event->p_vout->p_sys->bOwnsQApp)
 585         {
 586             // run the main loop of qtapplication until someone says: 'quit'
 587             p_event->p_vout->p_sys->pcQApplication->exec();
 588         }
 589         else
 590         {
 591             while(!p_event->b_die && p_event->p_vout->p_sys->bRunning)
 592                         {
 593                    /* Check if we are asked to exit */
 594                if( p_event->b_die )
 595                    break;
 596
 597                                 msleep(100);
 598                         }
 599         }
 600     }
 601
 602     p_event->p_vout->p_sys->pcVoutWidget = NULL;
 603
 604     if(p_event->p_vout->p_sys->bOwnsQApp)
 605     {
 606         delete p_event->p_vout->p_sys->pcQApplication;
 607         p_event->p_vout->p_sys->pcQApplication = NULL;
 608     }
 609
 610     msg_Dbg( p_event->p_vout, "-qte::RunQtThread terminating" );
 611 }
 612