git.sesse.net Git - vlc/blob - plugins/macosx/vout_macosx.m

   1 /*****************************************************************************
   2  * vout_macosx.m: MacOS X video output plugin
   3  *****************************************************************************
   4  * Copyright (C) 2001, 2002 VideoLAN
   5  * $Id: vout_macosx.m,v 1.12 2002/07/16 20:41:48 jlj Exp $
   6  *
   7  * Authors: Colin Delacroix <colin@zoy.org>
   8  *          Florian G. Pflug <fgp@phlo.org>
   9  *          Jon Lech Johansen <jon-vl@nanocrew.net>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  24  *****************************************************************************/
  25
  26 /*****************************************************************************
  27  * Preamble
  28  *****************************************************************************/
  29 #include <errno.h>                                                 /* ENOMEM */
  30 #include <stdlib.h>                                                /* free() */
  31 #include <string.h>                                            /* strerror() */
  32
  33 #include <vlc/vlc.h>
  34 #include <vlc/vout.h>
  35 #include <vlc/aout.h>
  36 #include <vlc/intf.h>
  37
  38 #include <Cocoa/Cocoa.h>
  39 #include <QuickTime/QuickTime.h>
  40
  41 #include "intf_macosx.h"
  42 #include "vout_macosx.h"
  43
  44 #define QT_MAX_DIRECTBUFFERS 10
  45
  46 struct picture_sys_s
  47 {
  48     void *p_info;
  49     unsigned int i_size;
  50
  51     /* When using I420 output */
  52     PlanarPixmapInfoYUV420 pixmap_i420;
  53 };
  54
  55 /*****************************************************************************
  56  * Local prototypes
  57  *****************************************************************************/
  58 static int  vout_Create    ( vout_thread_t * );
  59 static int  vout_Init      ( vout_thread_t * );
  60 static void vout_End       ( vout_thread_t * );
  61 static void vout_Destroy   ( vout_thread_t * );
  62 static int  vout_Manage    ( vout_thread_t * );
  63 static void vout_Render    ( vout_thread_t *, picture_t * );
  64 static void vout_Display   ( vout_thread_t *, picture_t * );
  65
  66 static int  CoSendRequest      ( vout_thread_t *, long );
  67 static int  CoCreateWindow     ( vout_thread_t * );
  68 static int  CoDestroyWindow    ( vout_thread_t * );
  69 static int  CoToggleFullscreen ( vout_thread_t * );
  70
  71 static void QTScaleMatrix      ( vout_thread_t * );
  72 static int  QTCreateSequence   ( vout_thread_t * );
  73 static void QTDestroySequence  ( vout_thread_t * );
  74 static int  QTNewPicture       ( vout_thread_t *, picture_t * );
  75 static void QTFreePicture      ( vout_thread_t *, picture_t * );
  76
  77 /*****************************************************************************
  78  * Functions exported as capabilities. They are declared as static so that
  79  * we don't pollute the namespace too much.
  80  *****************************************************************************/
  81 void _M( vout_getfunctions )( function_list_t * p_function_list )
  82 {
  83     p_function_list->functions.vout.pf_create     = vout_Create;
  84     p_function_list->functions.vout.pf_init       = vout_Init;
  85     p_function_list->functions.vout.pf_end        = vout_End;
  86     p_function_list->functions.vout.pf_destroy    = vout_Destroy;
  87     p_function_list->functions.vout.pf_manage     = vout_Manage;
  88     p_function_list->functions.vout.pf_render     = vout_Render;
  89     p_function_list->functions.vout.pf_display    = vout_Display;
  90 }
  91
  92 /*****************************************************************************
  93  * vout_Create: allocates MacOS X video thread output method
  94  *****************************************************************************
  95  * This function allocates and initializes a MacOS X vout method.
  96  *****************************************************************************/
  97 static int vout_Create( vout_thread_t *p_vout )
  98 {
  99     OSErr err;
 100
 101     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 102     if( p_vout->p_sys == NULL )
 103     {
 104         msg_Err( p_vout, "out of memory" );
 105         return( 1 );
 106     }
 107
 108     memset( p_vout->p_sys, 0, sizeof( vout_sys_t ) );
 109
 110     p_vout->p_sys->p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF,
 111                                              FIND_ANYWHERE );
 112     if( p_vout->p_sys->p_intf == NULL )
 113     {
 114         msg_Err( p_vout, "no interface present" );
 115         free( p_vout->p_sys );
 116         return( 1 );
 117     }
 118
 119     if( p_vout->p_sys->p_intf->p_module == NULL ||
 120         strcmp( p_vout->p_sys->p_intf->p_module->psz_object_name,
 121                 MODULE_STRING ) != 0 )
 122     {
 123         msg_Err( p_vout, "MacOS X interface module required" );
 124         vlc_object_release( p_vout->p_sys->p_intf );
 125         free( p_vout->p_sys );
 126         return( 1 );
 127     }
 128
 129     p_vout->p_sys->h_img_descr =
 130         (ImageDescriptionHandle)NewHandleClear( sizeof(ImageDescription) );
 131     p_vout->p_sys->p_matrix = (MatrixRecordPtr)malloc( sizeof(MatrixRecord) );
 132
 133     p_vout->p_sys->b_mouse_pointer_visible = 1;
 134
 135     /* set window size */
 136     p_vout->p_sys->s_rect.size.width = p_vout->i_window_width;
 137     p_vout->p_sys->s_rect.size.height = p_vout->i_window_height;
 138
 139     if( ( err = EnterMovies() ) != noErr )
 140     {
 141         msg_Err( p_vout, "EnterMovies failed: %d", err );
 142         free( p_vout->p_sys->p_matrix );
 143         DisposeHandle( (Handle)p_vout->p_sys->h_img_descr );
 144         free( p_vout->p_sys );
 145         return( 1 );
 146     }
 147
 148     if( vout_ChromaCmp( p_vout->render.i_chroma, FOURCC_I420 ) )
 149     {
 150         err = FindCodec( kYUV420CodecType, bestSpeedCodec,
 151                          nil, &p_vout->p_sys->img_dc );
 152         if( err == noErr && p_vout->p_sys->img_dc != 0 )
 153         {
 154             p_vout->output.i_chroma = FOURCC_I420;
 155             p_vout->p_sys->i_codec = kYUV420CodecType;
 156         }
 157         else
 158         {
 159             msg_Err( p_vout, "failed to find an appropriate codec" );
 160         }
 161     }
 162     else
 163     {
 164         msg_Err( p_vout, "chroma 0x%08x not supported",
 165                          p_vout->render.i_chroma );
 166     }
 167
 168     if( p_vout->p_sys->img_dc == 0 )
 169     {
 170         free( p_vout->p_sys->p_matrix );
 171         DisposeHandle( (Handle)p_vout->p_sys->h_img_descr );
 172         free( p_vout->p_sys );
 173         return( 1 );
 174     }
 175
 176     if( CoCreateWindow( p_vout ) )
 177     {
 178         msg_Err( p_vout, "unable to create window" );
 179         free( p_vout->p_sys->p_matrix );
 180         DisposeHandle( (Handle)p_vout->p_sys->h_img_descr );
 181         free( p_vout->p_sys );
 182         return( 1 );
 183     }
 184
 185     return( 0 );
 186 }
 187
 188 /*****************************************************************************
 189  * vout_Init: initialize video thread output method
 190  *****************************************************************************/
 191 static int vout_Init( vout_thread_t *p_vout )
 192 {
 193     int i_index;
 194     picture_t *p_pic;
 195
 196     I_OUTPUTPICTURES = 0;
 197
 198     /* Initialize the output structure; we already found a codec,
 199      * and the corresponding chroma we will be using. Since we can
 200      * arbitrary scale, stick to the coordinates and aspect. */
 201     p_vout->output.i_width  = p_vout->render.i_width;
 202     p_vout->output.i_height = p_vout->render.i_height;
 203     p_vout->output.i_aspect = p_vout->render.i_aspect;
 204
 205     SetPort( p_vout->p_sys->p_qdport );
 206     QTScaleMatrix( p_vout );
 207
 208     if( QTCreateSequence( p_vout ) )
 209     {
 210         msg_Err( p_vout, "unable to create sequence" );
 211         return( 1 );
 212     }
 213
 214     /* Try to initialize up to QT_MAX_DIRECTBUFFERS direct buffers */
 215     while( I_OUTPUTPICTURES < QT_MAX_DIRECTBUFFERS )
 216     {
 217         p_pic = NULL;
 218
 219         /* Find an empty picture slot */
 220         for( i_index = 0; i_index < VOUT_MAX_PICTURES; i_index++ )
 221         {
 222             if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
 223             {
 224                 p_pic = p_vout->p_picture + i_index;
 225                 break;
 226             }
 227         }
 228
 229         /* Allocate the picture */
 230         if( p_pic == NULL || QTNewPicture( p_vout, p_pic ) )
 231         {
 232             break;
 233         }
 234
 235         p_pic->i_status = DESTROYED_PICTURE;
 236         p_pic->i_type   = DIRECT_PICTURE;
 237
 238         PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
 239
 240         I_OUTPUTPICTURES++;
 241     }
 242
 243     return( 0 );
 244 }
 245
 246 /*****************************************************************************
 247  * vout_End: terminate video thread output method
 248  *****************************************************************************/
 249 static void vout_End( vout_thread_t *p_vout )
 250 {
 251     int i_index;
 252
 253     QTDestroySequence( p_vout );
 254
 255     /* Free the direct buffers we allocated */
 256     for( i_index = I_OUTPUTPICTURES; i_index; )
 257     {
 258         i_index--;
 259         QTFreePicture( p_vout, PP_OUTPUTPICTURE[ i_index ] );
 260     }
 261 }
 262
 263 /*****************************************************************************
 264  * vout_Destroy: destroy video thread output method
 265  *****************************************************************************/
 266 static void vout_Destroy( vout_thread_t *p_vout )
 267 {
 268     if( CoDestroyWindow( p_vout ) )
 269     {
 270         msg_Err( p_vout, "unable to destroy window" );
 271     }
 272
 273     ExitMovies();
 274
 275     free( p_vout->p_sys->p_matrix );
 276     DisposeHandle( (Handle)p_vout->p_sys->h_img_descr );
 277
 278     vlc_object_release( p_vout->p_sys->p_intf );
 279
 280     free( p_vout->p_sys );
 281 }
 282
 283 /*****************************************************************************
 284  * vout_Manage: handle events
 285  *****************************************************************************
 286  * This function should be called regularly by video output thread. It manages
 287  * console events. It returns a non null value on error.
 288  *****************************************************************************/
 289 static int vout_Manage( vout_thread_t *p_vout )
 290 {
 291     if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 292     {
 293         if( CoToggleFullscreen( p_vout ) )
 294         {
 295             return( 1 );
 296         }
 297
 298         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 299     }
 300
 301     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 302     {
 303         QTScaleMatrix( p_vout );
 304         SetDSequenceMatrix( p_vout->p_sys->i_seq,
 305                             p_vout->p_sys->p_matrix );
 306
 307         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 308     }
 309
 310     /* hide/show mouse cursor */
 311     if( p_vout->p_sys->b_mouse_moved ||
 312         p_vout->p_sys->i_time_mouse_last_moved )
 313     {
 314         vlc_bool_t b_change = 0;
 315
 316         if( !p_vout->p_sys->b_mouse_pointer_visible )
 317         {
 318             CGDisplayShowCursor( kCGDirectMainDisplay );
 319             b_change = 1;
 320         }
 321 #if 0
 322         else if( !p_vout->p_sys->b_mouse_moved &&
 323             mdate() - p_vout->p_sys->i_time_mouse_last_moved > 2000000 &&
 324             p_vout->p_sys->b_mouse_pointer_visible )
 325         {
 326             CGDisplayHideCursor( kCGDirectMainDisplay );
 327             b_change = 1;
 328         }
 329 #endif
 330
 331         if( b_change )
 332         {
 333             p_vout->p_sys->i_time_mouse_last_moved = 0;
 334             p_vout->p_sys->b_mouse_moved = 0;
 335             p_vout->p_sys->b_mouse_pointer_visible =
 336                 !p_vout->p_sys->b_mouse_pointer_visible;
 337         }
 338     }
 339
 340     return( 0 );
 341 }
 342
 343 /*****************************************************************************
 344  * vout_Render: render previously calculated output
 345  *****************************************************************************/
 346 static void vout_Render( vout_thread_t *p_vout, picture_t *p_pic )
 347 {
 348     ;
 349 }
 350
 351 /*****************************************************************************
 352  * vout_Display: displays previously rendered output
 353  *****************************************************************************
 354  * This function sends the currently rendered image to the display.
 355  *****************************************************************************/
 356 static void vout_Display( vout_thread_t *p_vout, picture_t *p_pic )
 357 {
 358     OSErr err;
 359     CodecFlags flags;
 360
 361     if( ( err = DecompressSequenceFrameS(
 362                     p_vout->p_sys->i_seq,
 363                     p_pic->p_sys->p_info,
 364                     p_pic->p_sys->i_size,
 365                     codecFlagUseImageBuffer, &flags, nil ) != noErr ) )
 366     {
 367         msg_Err( p_vout, "DecompressSequenceFrameS failed: %d", err );
 368     }
 369 }
 370
 371 /*****************************************************************************
 372  * CoSendRequest: send request to interface thread
 373  *****************************************************************************
 374  * Returns 0 on success, 1 otherwise
 375  *****************************************************************************/
 376 static int CoSendRequest( vout_thread_t *p_vout, long i_request )
 377 {
 378     NSArray *o_array;
 379     NSPortMessage *o_msg;
 380     struct vout_req_s req;
 381     struct vout_req_s *p_req = &req;
 382     NSAutoreleasePool *o_pool = [[NSAutoreleasePool alloc] init];
 383     NSPort *recvPort = [[NSPort port] retain];
 384
 385     memset( &req, 0, sizeof(req) );
 386     req.i_type = i_request;
 387     req.p_vout = p_vout;
 388
 389     req.o_lock = [[NSConditionLock alloc] initWithCondition: 0];
 390
 391     o_array = [NSArray arrayWithObject:
 392         [NSData dataWithBytes: &p_req length: sizeof(void *)]];
 393     o_msg = [[NSPortMessage alloc]
 394         initWithSendPort: p_vout->p_sys->p_intf->p_sys->o_sendport
 395         receivePort: recvPort components: o_array];
 396
 397     [o_msg sendBeforeDate: [NSDate distantPast]];
 398
 399     [req.o_lock lockWhenCondition: 1];
 400     [req.o_lock unlock];
 401
 402     [o_msg release];
 403     [req.o_lock release];
 404
 405     [recvPort release];
 406     [o_pool release];
 407
 408     return( !req.i_result );
 409 }
 410
 411 /*****************************************************************************
 412  * CoCreateWindow: create new window
 413  *****************************************************************************
 414  * Returns 0 on success, 1 otherwise
 415  *****************************************************************************/
 416 static int CoCreateWindow( vout_thread_t *p_vout )
 417 {
 418     if( CoSendRequest( p_vout, VOUT_REQ_CREATE_WINDOW ) )
 419     {
 420         msg_Err( p_vout, "CoSendRequest (CREATE_WINDOW) failed" );
 421         return( 1 );
 422     }
 423
 424     return( 0 );
 425 }
 426
 427 /*****************************************************************************
 428  * CoDestroyWindow: destroy window
 429  *****************************************************************************
 430  * Returns 0 on success, 1 otherwise
 431  *****************************************************************************/
 432 static int CoDestroyWindow( vout_thread_t *p_vout )
 433 {
 434     if( !p_vout->p_sys->b_mouse_pointer_visible )
 435     {
 436         CGDisplayShowCursor( kCGDirectMainDisplay );
 437         p_vout->p_sys->b_mouse_pointer_visible = 1;
 438     }
 439
 440     if( CoSendRequest( p_vout, VOUT_REQ_DESTROY_WINDOW ) )
 441     {
 442         msg_Err( p_vout, "CoSendRequest (DESTROY_WINDOW) failed" );
 443         return( 1 );
 444     }
 445
 446     return( 0 );
 447 }
 448
 449 /*****************************************************************************
 450  * CoToggleFullscreen: toggle fullscreen
 451  *****************************************************************************
 452  * Returns 0 on success, 1 otherwise
 453  *****************************************************************************/
 454 static int CoToggleFullscreen( vout_thread_t *p_vout )
 455 {
 456     QTDestroySequence( p_vout );
 457
 458     if( CoDestroyWindow( p_vout ) )
 459     {
 460         msg_Err( p_vout, "unable to destroy window" );
 461         return( 1 );
 462     }
 463
 464     p_vout->b_fullscreen = !p_vout->b_fullscreen;
 465
 466     if( p_vout->b_fullscreen )
 467     {
 468         HideMenuBar();
 469     }
 470     else
 471     {
 472         ShowMenuBar();
 473     }
 474
 475     if( CoCreateWindow( p_vout ) )
 476     {
 477         msg_Err( p_vout, "unable to create window" );
 478         return( 1 );
 479     }
 480
 481     SetPort( p_vout->p_sys->p_qdport );
 482     QTScaleMatrix( p_vout );
 483
 484     if( QTCreateSequence( p_vout ) )
 485     {
 486         msg_Err( p_vout, "unable to create sequence" );
 487         return( 1 );
 488     }
 489
 490     return( 0 );
 491 }
 492
 493 /*****************************************************************************
 494  * QTScaleMatrix: scale matrix
 495  *****************************************************************************/
 496 static void QTScaleMatrix( vout_thread_t *p_vout )
 497 {
 498     Rect s_rect;
 499     int i_width, i_height;
 500     Fixed factor_x, factor_y;
 501     int i_offset_x = 0;
 502     int i_offset_y = 0;
 503
 504     GetPortBounds( p_vout->p_sys->p_qdport, &s_rect );
 505
 506     i_width = s_rect.right - s_rect.left;
 507     i_height = s_rect.bottom - s_rect.top;
 508
 509     if( i_height * p_vout->output.i_aspect < i_width * VOUT_ASPECT_FACTOR )
 510     {
 511         int i_adj_width = i_height * p_vout->output.i_aspect /
 512                           VOUT_ASPECT_FACTOR;
 513
 514         factor_x = FixDiv( Long2Fix( i_adj_width ),
 515                            Long2Fix( p_vout->output.i_width ) );
 516         factor_y = FixDiv( Long2Fix( i_height ),
 517                            Long2Fix( p_vout->output.i_height ) );
 518
 519         i_offset_x = (i_width - i_adj_width) / 2;
 520     }
 521     else
 522     {
 523         int i_adj_height = i_width * VOUT_ASPECT_FACTOR /
 524                            p_vout->output.i_aspect;
 525
 526         factor_x = FixDiv( Long2Fix( i_width ),
 527                            Long2Fix( p_vout->output.i_width ) );
 528         factor_y = FixDiv( Long2Fix( i_adj_height ),
 529                            Long2Fix( p_vout->output.i_height ) );
 530
 531         i_offset_y = (i_height - i_adj_height) / 2;
 532     }
 533
 534     SetIdentityMatrix( p_vout->p_sys->p_matrix );
 535
 536     ScaleMatrix( p_vout->p_sys->p_matrix,
 537                  factor_x, factor_y,
 538                  Long2Fix(0), Long2Fix(0) );
 539
 540     TranslateMatrix( p_vout->p_sys->p_matrix,
 541                      Long2Fix(i_offset_x),
 542                      Long2Fix(i_offset_y) );
 543 }
 544
 545 /*****************************************************************************
 546  * QTCreateSequence: create a new sequence
 547  *****************************************************************************
 548  * Returns 0 on success, 1 otherwise
 549  *****************************************************************************/
 550 static int QTCreateSequence( vout_thread_t *p_vout )
 551 {
 552     OSErr err;
 553     ImageDescriptionPtr p_descr;
 554
 555     HLock( (Handle)p_vout->p_sys->h_img_descr );
 556     p_descr = *p_vout->p_sys->h_img_descr;
 557
 558     p_descr->idSize = sizeof(ImageDescription);
 559     p_descr->cType = p_vout->p_sys->i_codec;
 560     p_descr->version = 1;
 561     p_descr->revisionLevel = 0;
 562     p_descr->vendor = 'appl';
 563     p_descr->width = p_vout->output.i_width;
 564     p_descr->height = p_vout->output.i_height;
 565     p_descr->hRes = Long2Fix(72);
 566     p_descr->vRes = Long2Fix(72);
 567     p_descr->spatialQuality = codecLosslessQuality;
 568     p_descr->frameCount = 1;
 569     p_descr->clutID = -1;
 570     p_descr->dataSize = 0;
 571     p_descr->depth = 12;
 572
 573     HUnlock( (Handle)p_vout->p_sys->h_img_descr );
 574
 575     if( ( err = DecompressSequenceBeginS(
 576                               &p_vout->p_sys->i_seq,
 577                               p_vout->p_sys->h_img_descr,
 578                               NULL, 0,
 579                               p_vout->p_sys->p_qdport,
 580                               NULL, NULL,
 581                               p_vout->p_sys->p_matrix,
 582                               0, NULL,
 583                               codecFlagUseImageBuffer,
 584                               codecLosslessQuality,
 585                               p_vout->p_sys->img_dc ) ) )
 586     {
 587         msg_Err( p_vout, "DecompressSequenceBeginS failed: %d", err );
 588         return( 1 );
 589     }
 590
 591     return( 0 );
 592 }
 593
 594 /*****************************************************************************
 595  * QTDestroySequence: destroy sequence
 596  *****************************************************************************/
 597 static void QTDestroySequence( vout_thread_t *p_vout )
 598 {
 599     CDSequenceEnd( p_vout->p_sys->i_seq );
 600 }
 601
 602 /*****************************************************************************
 603  * QTNewPicture: allocate a picture
 604  *****************************************************************************
 605  * Returns 0 on success, 1 otherwise
 606  *****************************************************************************/
 607 static int QTNewPicture( vout_thread_t *p_vout, picture_t *p_pic )
 608 {
 609     int i_width  = p_vout->output.i_width;
 610     int i_height = p_vout->output.i_height;
 611
 612     /* We know the chroma, allocate a buffer which will be used
 613      * directly by the decoder */
 614     p_pic->p_sys = malloc( sizeof( picture_sys_t ) );
 615
 616     if( p_pic->p_sys == NULL )
 617     {
 618         return( -1 );
 619     }
 620
 621     switch( p_vout->output.i_chroma )
 622     {
 623         case FOURCC_I420:
 624
 625             p_pic->p_sys->p_info = (void *)&p_pic->p_sys->pixmap_i420;
 626             p_pic->p_sys->i_size = sizeof(PlanarPixmapInfoYUV420);
 627
 628             /* Allocate the memory buffer */
 629             p_pic->p_data = vlc_memalign( &p_pic->p_data_orig,
 630                                           16, i_width * i_height * 3 / 2 );
 631
 632             /* Y buffer */
 633             p_pic->Y_PIXELS = p_pic->p_data;
 634             p_pic->p[Y_PLANE].i_lines = i_height;
 635             p_pic->p[Y_PLANE].i_pitch = i_width;
 636             p_pic->p[Y_PLANE].i_pixel_bytes = 1;
 637             p_pic->p[Y_PLANE].b_margin = 0;
 638
 639             /* U buffer */
 640             p_pic->U_PIXELS = p_pic->Y_PIXELS + i_height * i_width;
 641             p_pic->p[U_PLANE].i_lines = i_height / 2;
 642             p_pic->p[U_PLANE].i_pitch = i_width / 2;
 643             p_pic->p[U_PLANE].i_pixel_bytes = 1;
 644             p_pic->p[U_PLANE].b_margin = 0;
 645
 646             /* V buffer */
 647             p_pic->V_PIXELS = p_pic->U_PIXELS + i_height * i_width / 4;
 648             p_pic->p[V_PLANE].i_lines = i_height / 2;
 649             p_pic->p[V_PLANE].i_pitch = i_width / 2;
 650             p_pic->p[V_PLANE].i_pixel_bytes = 1;
 651             p_pic->p[V_PLANE].b_margin = 0;
 652
 653             /* We allocated 3 planes */
 654             p_pic->i_planes = 3;
 655
 656 #define P p_pic->p_sys->pixmap_i420
 657             P.componentInfoY.offset = (void *)p_pic->Y_PIXELS
 658                                        - p_pic->p_sys->p_info;
 659             P.componentInfoCb.offset = (void *)p_pic->U_PIXELS
 660                                         - p_pic->p_sys->p_info;
 661             P.componentInfoCr.offset = (void *)p_pic->V_PIXELS
 662                                         - p_pic->p_sys->p_info;
 663
 664             P.componentInfoY.rowBytes = i_width;
 665             P.componentInfoCb.rowBytes = i_width / 2;
 666             P.componentInfoCr.rowBytes = i_width / 2;
 667 #undef P
 668
 669             break;
 670
 671     default:
 672         /* Unknown chroma, tell the guy to get lost */
 673         free( p_pic->p_sys );
 674         msg_Err( p_vout, "never heard of chroma 0x%.8x (%4.4s)",
 675                  p_vout->output.i_chroma, (char*)&p_vout->output.i_chroma );
 676         p_pic->i_planes = 0;
 677         return( -1 );
 678     }
 679
 680     return( 0 );
 681 }
 682
 683 /*****************************************************************************
 684  * QTFreePicture: destroy a picture allocated with QTNewPicture
 685  *****************************************************************************/
 686 static void QTFreePicture( vout_thread_t *p_vout, picture_t *p_pic )
 687 {
 688     switch( p_vout->output.i_chroma )
 689     {
 690         case FOURCC_I420:
 691             free( p_pic->p_data_orig );
 692             break;
 693     }
 694
 695     free( p_pic->p_sys );
 696 }
 697
 698 /*****************************************************************************
 699  * VLCWindow implementation
 700  *****************************************************************************/
 701 @implementation VLCWindow
 702
 703 - (void)setVout:(vout_thread_t *)_p_vout
 704 {
 705     p_vout = _p_vout;
 706 }
 707
 708 - (void)toggleFullscreen
 709 {
 710     p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 711 }
 712
 713 - (BOOL)isFullscreen
 714 {
 715     return( p_vout->b_fullscreen );
 716 }
 717
 718 - (BOOL)canBecomeKeyWindow
 719 {
 720     return( YES );
 721 }
 722
 723 - (void)keyDown:(NSEvent *)o_event
 724 {
 725     unichar key = 0;
 726
 727     if( [[o_event characters] length] )
 728     {
 729         key = [[o_event characters] characterAtIndex: 0];
 730     }
 731
 732     switch( key )
 733     {
 734         case (unichar)0xf700: /* up-arrow */
 735         {
 736             aout_thread_t * p_aout = vlc_object_find( p_vout, VLC_OBJECT_AOUT,
 737                                                       FIND_ANYWHERE );
 738             if( p_aout != NULL )
 739             {
 740                 if( p_aout->i_volume + VOLUME_STEP <= VOLUME_MAX )
 741                 {
 742                     p_aout->i_volume += VOLUME_STEP;
 743                 }
 744
 745                 vlc_object_release( p_aout );
 746             }
 747         }
 748         break;
 749
 750         case (unichar)0xf701: /* down-arrow */
 751         {
 752             aout_thread_t * p_aout = vlc_object_find( p_vout, VLC_OBJECT_AOUT,
 753                                                       FIND_ANYWHERE );
 754             if( p_aout != NULL )
 755             {
 756                 if( p_aout->i_volume - VOLUME_STEP >= VOLUME_MIN )
 757                 {
 758                     p_aout->i_volume -= VOLUME_STEP;
 759                 }
 760
 761                 vlc_object_release( p_aout );
 762             }
 763         }
 764         break;
 765
 766         case 'f': case 'F':
 767             [self toggleFullscreen];
 768             break;
 769
 770         case (unichar)0x1b: /* escape */
 771             if( [self isFullscreen] )
 772             {
 773                 [self toggleFullscreen];
 774             }
 775             break;
 776
 777         case 'q': case 'Q':
 778             p_vout->p_vlc->b_die = VLC_TRUE;
 779             break;
 780
 781         case ' ':
 782             input_SetStatus( p_vout, INPUT_STATUS_PAUSE );
 783             break;
 784
 785         default:
 786             [super keyDown: o_event];
 787             break;
 788     }
 789 }
 790
 791 @end
 792
 793 /*****************************************************************************
 794  * VLCView implementation
 795  *****************************************************************************/
 796 @implementation VLCView
 797
 798 - (void)setVout:(vout_thread_t *)_p_vout
 799 {
 800     p_vout = _p_vout;
 801 }
 802
 803 - (void)drawRect:(NSRect)rect
 804 {
 805     [[NSColor blackColor] set];
 806     NSRectFill( rect );
 807     [super drawRect: rect];
 808
 809     p_vout->i_changes |= VOUT_SIZE_CHANGE;
 810 }
 811
 812 @end