git.sesse.net Git - vlc/blob - modules/gui/macosx/voutgl.m

   1 /*****************************************************************************
   2  * voutgl.m: MacOS X OpenGL provider
   3  *****************************************************************************
   4  * Copyright (C) 2001-2004, 2007 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Colin Delacroix <colin@zoy.org>
   8  *          Florian G. Pflug <fgp@phlo.org>
   9  *          Jon Lech Johansen <jon-vl@nanocrew.net>
  10  *          Derk-Jan Hartman <hartman at videolan dot org>
  11  *          Eric Petit <titer@m0k.org>
  12  *          Benjamin Pracht <bigben at videolan dot org>
  13  *          Damien Fouilleul <damienf at videolan dot org>
  14  *
  15  * This program is free software; you can redistribute it and/or modify
  16  * it under the terms of the GNU General Public License as published by
  17  * the Free Software Foundation; either version 2 of the License, or
  18  * (at your option) any later version.
  19  *
  20  * This program is distributed in the hope that it will be useful,
  21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  * GNU General Public License for more details.
  24  *
  25  * You should have received a copy of the GNU General Public License
  26  * along with this program; if not, write to the Free Software
  27  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  28  *****************************************************************************/
  29
  30 /*****************************************************************************
  31  * Preamble
  32  *****************************************************************************/
  33 #include <errno.h>                                                 /* ENOMEM */
  34 #include <stdlib.h>                                                /* free() */
  35 #include <string.h>
  36
  37 #include <vlc_keys.h>
  38
  39 #include "intf.h"
  40 #include "vout.h"
  41
  42 #include <OpenGL/OpenGL.h>
  43 #include <OpenGL/gl.h>
  44
  45 #include <AGL/agl.h>
  46
  47 /*****************************************************************************
  48  * VLCGLView interface
  49  *****************************************************************************/
  50 @interface VLCGLView : NSOpenGLView <VLCVoutViewResetting>
  51 {
  52     vout_thread_t * p_vout;
  53 }
  54
  55 + (void)resetVout: (NSValue *) voutValue;
  56 - (id) initWithVout: (vout_thread_t *) p_vout;
  57 @end
  58
  59 struct vout_sys_t
  60 {
  61     NSAutoreleasePool * o_pool;
  62     VLCGLView         * o_glview;
  63     VLCVoutView       * o_vout_view;
  64     bool          b_saved_frame;
  65     NSRect              s_frame;
  66     bool          b_got_frame;
  67     /* Mozilla plugin-related variables */
  68     bool          b_embedded;
  69     AGLContext          agl_ctx;
  70     AGLDrawable         agl_drawable;
  71     int                 i_offx, i_offy;
  72     int                 i_width, i_height;
  73     WindowRef           theWindow;
  74     WindowGroupRef      winGroup;
  75     bool          b_clipped_out;
  76     Rect                clipBounds, viewBounds;
  77 };
  78
  79 /*****************************************************************************
  80  * Local prototypes
  81  *****************************************************************************/
  82
  83 static int  Init   ( vout_thread_t * p_vout );
  84 static void End    ( vout_thread_t * p_vout );
  85 static int  Manage ( vout_thread_t * p_vout );
  86 static int  Control( vout_thread_t *, int, va_list );
  87 static void Swap   ( vout_thread_t * p_vout );
  88 static int  Lock   ( vout_thread_t * p_vout );
  89 static void Unlock ( vout_thread_t * p_vout );
  90
  91 static int  aglInit   ( vout_thread_t * p_vout );
  92 static void aglEnd    ( vout_thread_t * p_vout );
  93 static int  aglManage ( vout_thread_t * p_vout );
  94 static int  aglControl( vout_thread_t *, int, va_list );
  95 static void aglSwap   ( vout_thread_t * p_vout );
  96 static int  aglLock   ( vout_thread_t * p_vout );
  97 static void aglUnlock ( vout_thread_t * p_vout );
  98
  99 int OpenVideoGL  ( vlc_object_t * p_this )
 100 {
 101     vout_thread_t * p_vout = (vout_thread_t *) p_this;
 102     vlc_value_t value_drawable;
 103
 104     if( !CGDisplayUsesOpenGLAcceleration( kCGDirectMainDisplay ) )
 105     {
 106         msg_Warn( p_vout, "no OpenGL hardware acceleration found. "
 107                           "Video display will be slow" );
 108         return( 1 );
 109     }
 110     msg_Dbg( p_vout, "display is Quartz Extreme accelerated" );
 111
 112     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 113     if( p_vout->p_sys == NULL )
 114     {
 115         msg_Err( p_vout, "out of memory" );
 116         return( 1 );
 117     }
 118
 119     memset( p_vout->p_sys, 0, sizeof( vout_sys_t ) );
 120
 121     var_Get( p_vout->p_libvlc, "drawable", &value_drawable );
 122     if( value_drawable.i_int != 0 )
 123     {
 124         static const GLint ATTRIBUTES[] = {
 125             AGL_WINDOW,
 126             AGL_RGBA,
 127             AGL_NO_RECOVERY,
 128             AGL_ACCELERATED,
 129             AGL_DOUBLEBUFFER,
 130             AGL_RED_SIZE,   8,
 131             AGL_GREEN_SIZE, 8,
 132             AGL_BLUE_SIZE,  8,
 133             AGL_ALPHA_SIZE, 8,
 134             AGL_DEPTH_SIZE, 24,
 135             AGL_NONE };
 136
 137         AGLPixelFormat pixFormat;
 138
 139         p_vout->p_sys->b_embedded = true;
 140
 141         pixFormat = aglChoosePixelFormat(NULL, 0, ATTRIBUTES);
 142         if( NULL == pixFormat )
 143         {
 144             msg_Err( p_vout, "no screen renderer available for required attributes." );
 145             return VLC_EGENERIC;
 146         }
 147
 148         p_vout->p_sys->agl_ctx = aglCreateContext(pixFormat, NULL);
 149         aglDestroyPixelFormat(pixFormat);
 150         if( NULL == p_vout->p_sys->agl_ctx )
 151         {
 152             msg_Err( p_vout, "cannot create AGL context." );
 153             return VLC_EGENERIC;
 154         }
 155         else {
 156             // tell opengl not to sync buffer swap with vertical retrace (too inefficient)
 157             GLint param = 0;
 158             aglSetInteger(p_vout->p_sys->agl_ctx, AGL_SWAP_INTERVAL, &param);
 159             aglEnable(p_vout->p_sys->agl_ctx, AGL_SWAP_INTERVAL);
 160         }
 161
 162         p_vout->pf_init             = aglInit;
 163         p_vout->pf_end              = aglEnd;
 164         p_vout->pf_manage           = aglManage;
 165         p_vout->pf_control          = aglControl;
 166         p_vout->pf_swap             = aglSwap;
 167         p_vout->pf_lock             = aglLock;
 168         p_vout->pf_unlock           = aglUnlock;
 169     }
 170     else
 171     {
 172         NSAutoreleasePool *o_pool = [[NSAutoreleasePool alloc] init];
 173
 174         p_vout->p_sys->b_embedded = false;
 175
 176         [VLCGLView performSelectorOnMainThread:@selector(initVout:) withObject:[NSValue valueWithPointer:p_vout] waitUntilDone:YES];
 177
 178         [o_pool release];
 179
 180         /* Check to see if initVout: was successfull */
 181
 182         if( !p_vout->p_sys->o_vout_view )
 183         {
 184             return VLC_EGENERIC;
 185         }
 186
 187         p_vout->pf_init   = Init;
 188         p_vout->pf_end    = End;
 189         p_vout->pf_manage = Manage;
 190         p_vout->pf_control= Control;
 191         p_vout->pf_swap   = Swap;
 192         p_vout->pf_lock   = Lock;
 193         p_vout->pf_unlock = Unlock;
 194     }
 195     p_vout->p_sys->b_got_frame = false;
 196
 197     return VLC_SUCCESS;
 198 }
 199
 200 void CloseVideoGL ( vlc_object_t * p_this )
 201 {
 202     vout_thread_t * p_vout = (vout_thread_t *) p_this;
 203
 204     msg_Dbg( p_this, "Closing" );
 205
 206     if( p_vout->p_sys->b_embedded )
 207     {
 208         aglDestroyContext(p_vout->p_sys->agl_ctx);
 209     }
 210     else if(VLCIntf && vlc_object_alive (VLCIntf))
 211     {
 212         NSAutoreleasePool *o_pool = [[NSAutoreleasePool alloc] init];
 213
 214         /* Close the window */
 215         [p_vout->p_sys->o_vout_view performSelectorOnMainThread:@selector(closeVout) withObject:NULL waitUntilDone:YES];
 216
 217         [o_pool release];
 218     }
 219     /* Clean up */
 220     free( p_vout->p_sys );
 221 }
 222
 223 static int Init( vout_thread_t * p_vout )
 224 {
 225     [[p_vout->p_sys->o_glview openGLContext] makeCurrentContext];
 226     return VLC_SUCCESS;
 227 }
 228
 229 static void End( vout_thread_t * p_vout )
 230 {
 231     [[p_vout->p_sys->o_glview openGLContext] makeCurrentContext];
 232 }
 233
 234 static int Manage( vout_thread_t * p_vout )
 235 {
 236     if( p_vout->i_changes & VOUT_ASPECT_CHANGE )
 237     {
 238         [p_vout->p_sys->o_glview reshape];
 239         p_vout->i_changes &= ~VOUT_ASPECT_CHANGE;
 240     }
 241     if( p_vout->i_changes & VOUT_CROP_CHANGE )
 242     {
 243         [p_vout->p_sys->o_glview reshape];
 244         p_vout->i_changes &= ~VOUT_CROP_CHANGE;
 245     }
 246
 247     if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 248     {
 249         NSAutoreleasePool *o_pool = [[NSAutoreleasePool alloc] init];
 250
 251         p_vout->b_fullscreen = !p_vout->b_fullscreen;
 252
 253         if( p_vout->b_fullscreen )
 254             [p_vout->p_sys->o_vout_view enterFullscreen];
 255         else
 256             [p_vout->p_sys->o_vout_view leaveFullscreen];
 257
 258         [o_pool release];
 259
 260         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 261     }
 262
 263     [p_vout->p_sys->o_vout_view manage];
 264     return VLC_SUCCESS;
 265 }
 266
 267 /*****************************************************************************
 268  * Control: control facility for the vout
 269  *****************************************************************************/
 270 static int Control( vout_thread_t *p_vout, int i_query, va_list args )
 271 {
 272     bool b_arg;
 273
 274     switch( i_query )
 275     {
 276         case VOUT_SET_STAY_ON_TOP:
 277             b_arg = (bool) va_arg( args, int );
 278             [p_vout->p_sys->o_vout_view setOnTop: b_arg];
 279             return VLC_SUCCESS;
 280
 281         case VOUT_CLOSE:
 282         case VOUT_REPARENT:
 283         default:
 284             return vout_vaControlDefault( p_vout, i_query, args );
 285     }
 286 }
 287
 288 static void Swap( vout_thread_t * p_vout )
 289 {
 290     p_vout->p_sys->b_got_frame = true;
 291     [[p_vout->p_sys->o_glview openGLContext] flushBuffer];
 292 }
 293
 294 static int Lock( vout_thread_t * p_vout )
 295 {
 296     if( kCGLNoError == CGLLockContext([[p_vout->p_sys->o_glview openGLContext] CGLContextObj]) )
 297     {
 298         [[p_vout->p_sys->o_glview openGLContext] makeCurrentContext];
 299         return 0;
 300     }
 301     return 1;
 302 }
 303
 304 static void Unlock( vout_thread_t * p_vout )
 305 {
 306     CGLUnlockContext([[p_vout->p_sys->o_glview openGLContext] CGLContextObj]);
 307 }
 308
 309 /*****************************************************************************
 310  * VLCGLView implementation
 311  *****************************************************************************/
 312 @implementation VLCGLView
 313 + (void)initVout:(NSValue *)arg
 314 {
 315     vout_thread_t * p_vout = [arg pointerValue];
 316
 317     /* Create the GL view */
 318     p_vout->p_sys->o_glview = [[VLCGLView alloc] initWithVout: p_vout];
 319     [p_vout->p_sys->o_glview autorelease];
 320
 321     /* Spawn the window */
 322     p_vout->p_sys->o_vout_view = [VLCVoutView getVoutView: p_vout
 323                         subView: p_vout->p_sys->o_glview frame: nil];
 324 }
 325
 326 /* This function will reset the o_vout_view. It's useful to go fullscreen. */
 327 + (void)resetVout:(NSValue *) voutValue
 328 {
 329     vout_thread_t * p_vout = [voutValue pointerValue];
 330     if( p_vout->b_fullscreen )
 331     {
 332         /* Save window size and position */
 333         p_vout->p_sys->s_frame.size =
 334             [p_vout->p_sys->o_vout_view frame].size;
 335         p_vout->p_sys->s_frame.origin =
 336             [[p_vout->p_sys->o_vout_view getWindow ]frame].origin;
 337         p_vout->p_sys->b_saved_frame = true;
 338     }
 339
 340     [p_vout->p_sys->o_vout_view closeVout];
 341
 342 #define o_glview p_vout->p_sys->o_glview
 343     o_glview = [[VLCGLView alloc] initWithVout: p_vout];
 344     [o_glview autorelease];
 345
 346     if( p_vout->p_sys->b_saved_frame )
 347     {
 348         p_vout->p_sys->o_vout_view = [VLCVoutView getVoutView: p_vout
 349                                                       subView: o_glview
 350                                                         frame: &p_vout->p_sys->s_frame];
 351     }
 352     else
 353     {
 354         p_vout->p_sys->o_vout_view = [VLCVoutView getVoutView: p_vout
 355                                                       subView: o_glview frame: nil];
 356
 357     }
 358 #undef o_glview
 359 }
 360
 361 - (id) initWithVout: (vout_thread_t *) vout
 362 {
 363     /* Must be called from main thread:
 364      * "The NSView class is generally thread-safe, with a few exceptions. You
 365      * should create, destroy, resize, move, and perform other operations on NSView
 366      * objects only from the main thread of an application. Drawing from secondary
 367      * threads is thread-safe as long as you bracket drawing calls with calls to
 368      * lockFocusIfCanDraw and unlockFocus." Cocoa Thread Safety */
 369
 370     p_vout = vout;
 371
 372     NSOpenGLPixelFormatAttribute attribs[] =
 373     {
 374         NSOpenGLPFADoubleBuffer,
 375         NSOpenGLPFAAccelerated,
 376         NSOpenGLPFANoRecovery,
 377         NSOpenGLPFAColorSize, 24,
 378         NSOpenGLPFAAlphaSize, 8,
 379         NSOpenGLPFADepthSize, 24,
 380         NSOpenGLPFAWindow,
 381         0
 382     };
 383
 384     NSOpenGLPixelFormat * fmt = [[NSOpenGLPixelFormat alloc]
 385         initWithAttributes: attribs];
 386
 387     if( !fmt )
 388     {
 389         msg_Warn( p_vout, "could not create OpenGL video output" );
 390         return nil;
 391     }
 392
 393     self = [super initWithFrame: NSMakeRect(0,0,10,10) pixelFormat: fmt];
 394     [fmt release];
 395
 396     [[self openGLContext] makeCurrentContext];
 397     [[self openGLContext] update];
 398
 399     /* Swap buffers only during the vertical retrace of the monitor.
 400        http://developer.apple.com/documentation/GraphicsImaging/
 401        Conceptual/OpenGL/chap5/chapter_5_section_44.html */
 402     GLint params[] = { 1 };
 403     CGLSetParameter( CGLGetCurrentContext(), kCGLCPSwapInterval, params );
 404     return self;
 405 }
 406
 407 - (void) reshape
 408 {
 409     int x, y;
 410     vlc_value_t val;
 411
 412     Lock( p_vout );
 413     NSRect bounds = [self bounds];
 414
 415     var_Get( p_vout, "macosx-stretch", &val );
 416     if( val.b_bool )
 417     {
 418         x = bounds.size.width;
 419         y = bounds.size.height;
 420     }
 421     else if( bounds.size.height * p_vout->fmt_in.i_visible_width *
 422              p_vout->fmt_in.i_sar_num <
 423              bounds.size.width * p_vout->fmt_in.i_visible_height *
 424              p_vout->fmt_in.i_sar_den )
 425     {
 426         x = ( bounds.size.height * p_vout->fmt_in.i_visible_width *
 427               p_vout->fmt_in.i_sar_num ) /
 428             ( p_vout->fmt_in.i_visible_height * p_vout->fmt_in.i_sar_den);
 429
 430         y = bounds.size.height;
 431     }
 432     else
 433     {
 434         x = bounds.size.width;
 435         y = ( bounds.size.width * p_vout->fmt_in.i_visible_height *
 436               p_vout->fmt_in.i_sar_den) /
 437             ( p_vout->fmt_in.i_visible_width * p_vout->fmt_in.i_sar_num  );
 438     }
 439
 440     glViewport( ( bounds.size.width - x ) / 2,
 441                 ( bounds.size.height - y ) / 2, x, y );
 442
 443     [super reshape];
 444
 445     if( p_vout->p_sys->b_got_frame )
 446     {
 447         /* Ask the opengl module to redraw */
 448         vout_thread_t * p_parent;
 449         p_parent = (vout_thread_t *) p_vout->p_parent;
 450         Unlock( p_vout );
 451         if( p_parent && p_parent->pf_display )
 452         {
 453             p_parent->pf_display( p_parent, NULL );
 454         }
 455     }
 456     else
 457     {
 458         glClear( GL_COLOR_BUFFER_BIT );
 459         Unlock( p_vout );
 460     }
 461 }
 462
 463 - (void) update
 464 {
 465     Lock( p_vout );
 466     [super update];
 467     Unlock( p_vout );
 468 }
 469
 470 - (void) drawRect: (NSRect) rect
 471 {
 472     Lock( p_vout );
 473     [[p_vout->p_sys->o_glview openGLContext] flushBuffer];
 474     [super drawRect:rect];
 475     Unlock( p_vout );
 476 }
 477
 478 @end
 479
 480 /*****************************************************************************
 481  * embedded AGL context implementation
 482  *****************************************************************************/
 483
 484 static void aglSetViewport( vout_thread_t *p_vout, Rect viewBounds, Rect clipBounds );
 485 static void aglReshape( vout_thread_t * p_vout );
 486 static OSStatus WindowEventHandler(EventHandlerCallRef nextHandler, EventRef event, void *userData);
 487
 488 static int aglInit( vout_thread_t * p_vout )
 489 {
 490     vlc_value_t val;
 491
 492     Rect viewBounds;
 493     Rect clipBounds;
 494
 495     var_Get( p_vout->p_libvlc, "drawable", &val );
 496     p_vout->p_sys->agl_drawable = (AGLDrawable)val.i_int;
 497     aglSetDrawable(p_vout->p_sys->agl_ctx, p_vout->p_sys->agl_drawable);
 498
 499     var_Get( p_vout->p_libvlc, "drawable-view-top", &val );
 500     viewBounds.top = val.i_int;
 501     var_Get( p_vout->p_libvlc, "drawable-view-left", &val );
 502     viewBounds.left = val.i_int;
 503     var_Get( p_vout->p_libvlc, "drawable-view-bottom", &val );
 504     viewBounds.bottom = val.i_int;
 505     var_Get( p_vout->p_libvlc, "drawable-view-right", &val );
 506     viewBounds.right = val.i_int;
 507     var_Get( p_vout->p_libvlc, "drawable-clip-top", &val );
 508     clipBounds.top = val.i_int;
 509     var_Get( p_vout->p_libvlc, "drawable-clip-left", &val );
 510     clipBounds.left = val.i_int;
 511     var_Get( p_vout->p_libvlc, "drawable-clip-bottom", &val );
 512     clipBounds.bottom = val.i_int;
 513     var_Get( p_vout->p_libvlc, "drawable-clip-right", &val );
 514     clipBounds.right = val.i_int;
 515
 516     p_vout->p_sys->b_clipped_out = (clipBounds.top == clipBounds.bottom)
 517                                  || (clipBounds.left == clipBounds.right);
 518     if( ! p_vout->p_sys->b_clipped_out )
 519     {
 520         aglLock(p_vout);
 521         aglSetViewport(p_vout, viewBounds, clipBounds);
 522         aglReshape(p_vout);
 523         aglUnlock(p_vout);
 524     }
 525     p_vout->p_sys->clipBounds = clipBounds;
 526     p_vout->p_sys->viewBounds = viewBounds;
 527
 528     return VLC_SUCCESS;
 529 }
 530
 531 static void aglEnd( vout_thread_t * p_vout )
 532 {
 533     aglSetCurrentContext(NULL);
 534     if( p_vout->p_sys->theWindow ) DisposeWindow( p_vout->p_sys->theWindow );
 535 }
 536
 537 static void aglReshape( vout_thread_t * p_vout )
 538 {
 539     unsigned int x, y;
 540     unsigned int i_height = p_vout->p_sys->i_height;
 541     unsigned int i_width  = p_vout->p_sys->i_width;
 542
 543     vout_PlacePicture(p_vout, i_width, i_height, &x, &y, &i_width, &i_height);
 544
 545     glViewport( p_vout->p_sys->i_offx + x, p_vout->p_sys->i_offy + y, i_width, i_height );
 546
 547     if( p_vout->p_sys->b_got_frame )
 548     {
 549         /* Ask the opengl module to redraw */
 550         vout_thread_t * p_parent;
 551         p_parent = (vout_thread_t *) p_vout->p_parent;
 552         if( p_parent && p_parent->pf_display )
 553         {
 554             p_parent->pf_display( p_parent, NULL );
 555         }
 556     }
 557     else
 558     {
 559         glClear( GL_COLOR_BUFFER_BIT );
 560     }
 561 }
 562
 563 /* private event class */
 564 enum
 565 {
 566     kEventClassVLCPlugin = 'vlcp',
 567 };
 568 /* private event kinds */
 569 enum
 570 {
 571     kEventVLCPluginShowFullscreen = 32768,
 572     kEventVLCPluginHideFullscreen,
 573 };
 574
 575 static void sendEventToMainThread(EventTargetRef target, UInt32 class, UInt32 kind)
 576 {
 577     EventRef myEvent;
 578     if( noErr == CreateEvent(NULL, class, kind, 0, kEventAttributeNone, &myEvent) )
 579     {
 580         if( noErr == SetEventParameter(myEvent, kEventParamPostTarget, typeEventTargetRef, sizeof(EventTargetRef), &target) )
 581         {
 582             PostEventToQueue(GetMainEventQueue(), myEvent, kEventPriorityStandard);
 583         }
 584         ReleaseEvent(myEvent);
 585     }
 586 }
 587
 588 static int aglManage( vout_thread_t * p_vout )
 589 {
 590     if( p_vout->i_changes & VOUT_ASPECT_CHANGE )
 591     {
 592         aglLock( p_vout );
 593         aglReshape(p_vout);
 594         aglUnlock( p_vout );
 595         p_vout->i_changes &= ~VOUT_ASPECT_CHANGE;
 596     }
 597     if( p_vout->i_changes & VOUT_CROP_CHANGE )
 598     {
 599         aglLock( p_vout );
 600         aglReshape(p_vout);
 601         aglUnlock( p_vout );
 602         p_vout->i_changes &= ~VOUT_CROP_CHANGE;
 603     }
 604     if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 605     {
 606         aglSetDrawable(p_vout->p_sys->agl_ctx, NULL);
 607         aglLock( p_vout );
 608         if( p_vout->b_fullscreen )
 609         {
 610             /* Close the fullscreen window and resume normal drawing */
 611             vlc_value_t val;
 612             Rect viewBounds;
 613             Rect clipBounds;
 614
 615             var_Get( p_vout->p_libvlc, "drawable", &val );
 616             p_vout->p_sys->agl_drawable = (AGLDrawable)val.i_int;
 617             aglSetDrawable(p_vout->p_sys->agl_ctx, p_vout->p_sys->agl_drawable);
 618
 619             var_Get( p_vout->p_libvlc, "drawable-view-top", &val );
 620             viewBounds.top = val.i_int;
 621             var_Get( p_vout->p_libvlc, "drawable-view-left", &val );
 622             viewBounds.left = val.i_int;
 623             var_Get( p_vout->p_libvlc, "drawable-view-bottom", &val );
 624             viewBounds.bottom = val.i_int;
 625             var_Get( p_vout->p_libvlc, "drawable-view-right", &val );
 626             viewBounds.right = val.i_int;
 627             var_Get( p_vout->p_libvlc, "drawable-clip-top", &val );
 628             clipBounds.top = val.i_int;
 629             var_Get( p_vout->p_libvlc, "drawable-clip-left", &val );
 630             clipBounds.left = val.i_int;
 631             var_Get( p_vout->p_libvlc, "drawable-clip-bottom", &val );
 632             clipBounds.bottom = val.i_int;
 633             var_Get( p_vout->p_libvlc, "drawable-clip-right", &val );
 634             clipBounds.right = val.i_int;
 635
 636             aglSetCurrentContext(p_vout->p_sys->agl_ctx);
 637             aglSetViewport(p_vout, viewBounds, clipBounds);
 638
 639             /* Most Carbon APIs are not thread-safe, therefore delagate some GUI visibilty update to the main thread */
 640             sendEventToMainThread(GetWindowEventTarget(p_vout->p_sys->theWindow), kEventClassVLCPlugin, kEventVLCPluginHideFullscreen);
 641         }
 642         else
 643         {
 644             Rect deviceRect;
 645
 646             GDHandle deviceHdl = GetMainDevice();
 647             deviceRect = (*deviceHdl)->gdRect;
 648
 649             if( !p_vout->p_sys->theWindow )
 650             {
 651                 /* Create a window */
 652                 WindowAttributes    windowAttrs;
 653
 654                 windowAttrs = kWindowStandardDocumentAttributes
 655                             | kWindowStandardHandlerAttribute
 656                             | kWindowLiveResizeAttribute
 657                             | kWindowNoShadowAttribute;
 658
 659                 windowAttrs &= (~kWindowResizableAttribute);
 660
 661                 CreateNewWindow(kDocumentWindowClass, windowAttrs, &deviceRect, &p_vout->p_sys->theWindow);
 662                 if( !p_vout->p_sys->winGroup )
 663                 {
 664                     CreateWindowGroup(0, &p_vout->p_sys->winGroup);
 665                     SetWindowGroup(p_vout->p_sys->theWindow, p_vout->p_sys->winGroup);
 666                     SetWindowGroupParent( p_vout->p_sys->winGroup, GetWindowGroupOfClass(kDocumentWindowClass) ) ;
 667                 }
 668
 669                 // Window title
 670                 CFStringRef titleKey    = CFSTR("Fullscreen VLC media plugin");
 671                 CFStringRef windowTitle = CFCopyLocalizedString(titleKey, NULL);
 672                 SetWindowTitleWithCFString(p_vout->p_sys->theWindow, windowTitle);
 673                 CFRelease(titleKey);
 674                 CFRelease(windowTitle);
 675
 676                 //Install event handler
 677                 static const EventTypeSpec win_events[] = {
 678                     { kEventClassMouse, kEventMouseDown },
 679                     { kEventClassMouse, kEventMouseMoved },
 680                     { kEventClassMouse, kEventMouseUp },
 681                     { kEventClassWindow, kEventWindowClosed },
 682                     { kEventClassWindow, kEventWindowBoundsChanged },
 683                     { kEventClassCommand, kEventCommandProcess },
 684                     { kEventClassVLCPlugin, kEventVLCPluginShowFullscreen },
 685                     { kEventClassVLCPlugin, kEventVLCPluginHideFullscreen },
 686                 };
 687                 InstallWindowEventHandler (p_vout->p_sys->theWindow, NewEventHandlerUPP (WindowEventHandler), GetEventTypeCount(win_events), win_events, p_vout, NULL);
 688             }
 689             else
 690             {
 691                 /* just in case device resolution changed */
 692                 SetWindowBounds(p_vout->p_sys->theWindow, kWindowContentRgn, &deviceRect);
 693             }
 694             glClear( GL_COLOR_BUFFER_BIT );
 695             p_vout->p_sys->agl_drawable = (AGLDrawable)GetWindowPort(p_vout->p_sys->theWindow);
 696             aglSetDrawable(p_vout->p_sys->agl_ctx, p_vout->p_sys->agl_drawable);
 697             aglSetCurrentContext(p_vout->p_sys->agl_ctx);
 698             aglSetViewport(p_vout, deviceRect, deviceRect);
 699             //aglSetFullScreen(p_vout->p_sys->agl_ctx, device_width, device_height, 0, 0);
 700
 701             /* Most Carbon APIs are not thread-safe, therefore delagate some GUI visibilty update to the main thread */
 702             sendEventToMainThread(GetWindowEventTarget(p_vout->p_sys->theWindow), kEventClassVLCPlugin, kEventVLCPluginShowFullscreen);
 703         }
 704         aglReshape(p_vout);
 705         aglUnlock( p_vout );
 706         p_vout->b_fullscreen = !p_vout->b_fullscreen;
 707         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 708     }
 709     return VLC_SUCCESS;
 710 }
 711
 712 static int aglControl( vout_thread_t *p_vout, int i_query, va_list args )
 713 {
 714     switch( i_query )
 715     {
 716         case VOUT_SET_VIEWPORT:
 717         {
 718             Rect viewBounds, clipBounds;
 719             viewBounds.top = va_arg( args, int);
 720             viewBounds.left = va_arg( args, int);
 721             viewBounds.bottom = va_arg( args, int);
 722             viewBounds.right = va_arg( args, int);
 723             clipBounds.top = va_arg( args, int);
 724             clipBounds.left = va_arg( args, int);
 725             clipBounds.bottom = va_arg( args, int);
 726             clipBounds.right = va_arg( args, int);
 727
 728             if( !p_vout->b_fullscreen )
 729             {
 730                 /*
 731                 ** check that the clip rect is not empty, as this is used
 732                 ** by Firefox to prevent a plugin from displaying during
 733                 ** a scrolling event. In this case we just prevent buffers
 734                 ** from being swapped and ignore clipping as this is less
 735                 ** disruptive than a GL geometry change
 736                 */
 737
 738                 p_vout->p_sys->b_clipped_out = (clipBounds.top == clipBounds.bottom)
 739                                              || (clipBounds.left == clipBounds.right);
 740                 if( ! p_vout->p_sys->b_clipped_out )
 741                 {
 742                     /* ignore consecutive viewport update with identical parameters */
 743                     if( memcmp(&clipBounds, &(p_vout->p_sys->clipBounds), sizeof(clipBounds) )
 744                      && memcmp(&viewBounds, &(p_vout->p_sys->viewBounds), sizeof(viewBounds)) )
 745                     {
 746                         aglLock( p_vout );
 747                         aglSetViewport(p_vout, viewBounds, clipBounds);
 748                         aglReshape( p_vout );
 749                         aglUnlock( p_vout );
 750                         p_vout->p_sys->clipBounds = clipBounds;
 751                         p_vout->p_sys->viewBounds = viewBounds;
 752                     }
 753                 }
 754             }
 755             return VLC_SUCCESS;
 756         }
 757
 758         case VOUT_REDRAW_RECT:
 759         {
 760             vout_thread_t * p_parent;
 761             Rect areaBounds;
 762
 763             areaBounds.top = va_arg( args, int);
 764             areaBounds.left = va_arg( args, int);
 765             areaBounds.bottom = va_arg( args, int);
 766             areaBounds.right = va_arg( args, int);
 767
 768             /* Ask the opengl module to redraw */
 769             p_parent = (vout_thread_t *) p_vout->p_parent;
 770             if( p_parent && p_parent->pf_display )
 771             {
 772                 p_parent->pf_display( p_parent, NULL );
 773             }
 774             return VLC_SUCCESS;
 775         }
 776
 777         case VOUT_REPARENT:
 778         {
 779             AGLDrawable drawable = (AGLDrawable)va_arg( args, int);
 780             if( !p_vout->b_fullscreen && drawable != p_vout->p_sys->agl_drawable )
 781             {
 782                 p_vout->p_sys->agl_drawable = drawable;
 783                 aglSetDrawable(p_vout->p_sys->agl_ctx, drawable);
 784             }
 785             return VLC_SUCCESS;
 786         }
 787
 788         default:
 789             return vout_vaControlDefault( p_vout, i_query, args );
 790     }
 791 }
 792
 793 static void aglSwap( vout_thread_t * p_vout )
 794 {
 795     if( ! p_vout->p_sys->b_clipped_out )
 796     {
 797         p_vout->p_sys->b_got_frame = true;
 798         aglSwapBuffers(p_vout->p_sys->agl_ctx);
 799     }
 800     else
 801     {
 802         /* drop frame */
 803         glFlush();
 804     }
 805 }
 806
 807 /* Enter this function with the p_vout locked */
 808 static void aglSetViewport( vout_thread_t *p_vout, Rect viewBounds, Rect clipBounds )
 809 {
 810     // mozilla plugin provides coordinates based on port bounds
 811     // however AGL coordinates are based on window structure region
 812     // and are vertically flipped
 813     GLint rect[4];
 814     CGrafPtr port = (CGrafPtr)p_vout->p_sys->agl_drawable;
 815     Rect winBounds, clientBounds;
 816
 817     GetWindowBounds(GetWindowFromPort(port),
 818         kWindowStructureRgn, &winBounds);
 819     GetWindowBounds(GetWindowFromPort(port),
 820         kWindowContentRgn, &clientBounds);
 821
 822     /* update video clipping bounds in drawable */
 823     rect[0] = (clientBounds.left-winBounds.left)
 824             + clipBounds.left;                  // from window left edge
 825     rect[1] = (winBounds.bottom-winBounds.top)
 826             - (clientBounds.top-winBounds.top)
 827             - clipBounds.bottom;                // from window bottom edge
 828     rect[2] = clipBounds.right-clipBounds.left; // width
 829     rect[3] = clipBounds.bottom-clipBounds.top; // height
 830     aglSetInteger(p_vout->p_sys->agl_ctx, AGL_BUFFER_RECT, rect);
 831     aglEnable(p_vout->p_sys->agl_ctx, AGL_BUFFER_RECT);
 832
 833     /* update video internal bounds in drawable */
 834     p_vout->p_sys->i_width  = viewBounds.right-viewBounds.left;
 835     p_vout->p_sys->i_height = viewBounds.bottom-viewBounds.top;
 836     p_vout->p_sys->i_offx   = -clipBounds.left - viewBounds.left;
 837     p_vout->p_sys->i_offy   = clipBounds.bottom + viewBounds.top
 838                             - p_vout->p_sys->i_height;
 839
 840     aglUpdateContext(p_vout->p_sys->agl_ctx);
 841 }
 842
 843 //default window event handler
 844 static pascal OSStatus WindowEventHandler(EventHandlerCallRef nextHandler, EventRef event, void *userData)
 845 {
 846     OSStatus result = noErr;
 847     UInt32 class = GetEventClass (event);
 848     UInt32 kind = GetEventKind (event);
 849     vout_thread_t *p_vout = (vout_thread_t *)userData;
 850
 851     result = CallNextEventHandler(nextHandler, event);
 852     if(class == kEventClassCommand)
 853     {
 854         HICommand theHICommand;
 855         GetEventParameter( event, kEventParamDirectObject, typeHICommand, NULL, sizeof( HICommand ), NULL, &theHICommand );
 856
 857         switch ( theHICommand.commandID )
 858         {
 859             default:
 860                 result = eventNotHandledErr;
 861         }
 862     }
 863     else if(class == kEventClassWindow)
 864     {
 865         WindowRef     window;
 866         Rect          rectPort = {0,0,0,0};
 867
 868         GetEventParameter(event, kEventParamDirectObject, typeWindowRef, NULL, sizeof(WindowRef), NULL, &window);
 869
 870         if(window)
 871         {
 872             GetPortBounds(GetWindowPort(window), &rectPort);
 873         }
 874
 875         switch (kind)
 876         {
 877             case kEventWindowClosed:
 878             case kEventWindowZoomed:
 879             case kEventWindowBoundsChanged:
 880                 break;
 881
 882             default:
 883                 result = eventNotHandledErr;
 884         }
 885     }
 886     else if(class == kEventClassMouse)
 887     {
 888         switch (kind)
 889         {
 890             case kEventMouseDown:
 891             {
 892                 UInt16     button;
 893
 894                 GetEventParameter(event, kEventParamMouseButton, typeMouseButton, NULL, sizeof(button), NULL, &button);
 895                 switch (button)
 896                 {
 897                     case kEventMouseButtonPrimary:
 898                     {
 899                         vlc_value_t val;
 900
 901                         var_Get( p_vout, "mouse-button-down", &val );
 902                         val.i_int |= 1;
 903                         var_Set( p_vout, "mouse-button-down", val );
 904                         break;
 905                     }
 906                     case kEventMouseButtonSecondary:
 907                     {
 908                         vlc_value_t val;
 909
 910                         var_Get( p_vout, "mouse-button-down", &val );
 911                         val.i_int |= 2;
 912                         var_Set( p_vout, "mouse-button-down", val );
 913                         break;
 914                     }
 915                     case kEventMouseButtonTertiary:
 916                     {
 917                         vlc_value_t val;
 918
 919                         var_Get( p_vout, "mouse-button-down", &val );
 920                         val.i_int |= 4;
 921                         var_Set( p_vout, "mouse-button-down", val );
 922                         break;
 923                     }
 924                     default:
 925                         result = eventNotHandledErr;
 926                 }
 927                 break;
 928             }
 929
 930             case kEventMouseUp:
 931             {
 932                 UInt16     button;
 933
 934                 GetEventParameter(event, kEventParamMouseButton, typeMouseButton, NULL, sizeof(button), NULL, &button);
 935                 switch (button)
 936                 {
 937                     case kEventMouseButtonPrimary:
 938                     {
 939                         UInt32 clickCount = 0;
 940                         GetEventParameter(event, kEventParamClickCount, typeUInt32, NULL, sizeof(clickCount), NULL, &clickCount);
 941                         if( clickCount > 1 )
 942                         {
 943                             vlc_value_t val;
 944
 945                             val.b_bool = false;
 946                             var_Set((vout_thread_t *) p_vout->p_parent, "fullscreen", val);
 947                         }
 948                         else
 949                         {
 950                             vlc_value_t val;
 951
 952                             val.b_bool = true;
 953                             var_Set( p_vout, "mouse-clicked", val );
 954
 955                             var_Get( p_vout, "mouse-button-down", &val );
 956                             val.i_int &= ~1;
 957                             var_Set( p_vout, "mouse-button-down", val );
 958                         }
 959                         break;
 960                     }
 961                     case kEventMouseButtonSecondary:
 962                     {
 963                         vlc_value_t val;
 964
 965                         var_Get( p_vout, "mouse-button-down", &val );
 966                         val.i_int &= ~2;
 967                         var_Set( p_vout, "mouse-button-down", val );
 968                         break;
 969                     }
 970                     case kEventMouseButtonTertiary:
 971                     {
 972                         vlc_value_t val;
 973
 974                         var_Get( p_vout, "mouse-button-down", &val );
 975                         val.i_int &= ~2;
 976                         var_Set( p_vout, "mouse-button-down", val );
 977                         break;
 978                     }
 979                     default:
 980                         result = eventNotHandledErr;
 981                 }
 982                 break;
 983             }
 984
 985             case kEventMouseMoved:
 986             {
 987                 Point ml;
 988                 vlc_value_t val;
 989
 990                 unsigned int i_x, i_y;
 991                 unsigned int i_height = p_vout->p_sys->i_height;
 992                 unsigned int i_width  = p_vout->p_sys->i_width;
 993
 994                 vout_PlacePicture(p_vout, i_width, i_height, &i_x, &i_y, &i_width, &i_height);
 995
 996                 GetEventParameter(event, kEventParamWindowMouseLocation, typeQDPoint, NULL, sizeof(Point), NULL, &ml);
 997
 998                 val.i_int = ( ((int)ml.h) - i_x ) *
 999                             p_vout->render.i_width / i_width;
1000                 var_Set( p_vout, "mouse-x", val );
1001
1002                 val.i_int = ( ((int)ml.v) - i_y ) *
1003                             p_vout->render.i_height / i_height;
1004
1005                 var_Set( p_vout, "mouse-y", val );
1006
1007                 val.b_bool = true;
1008                 var_Set( p_vout, "mouse-moved", val );
1009
1010                 break;
1011             }
1012
1013             default:
1014                 result = eventNotHandledErr;
1015         }
1016     }
1017     else if(class == kEventClassTextInput)
1018     {
1019         switch (kind)
1020         {
1021             case kEventTextInputUnicodeForKeyEvent:
1022             {
1023                 break;
1024             }
1025             default:
1026                 result = eventNotHandledErr;
1027         }
1028     }
1029     else if(class == kEventClassVLCPlugin)
1030     {
1031         switch (kind)
1032         {
1033             case kEventVLCPluginShowFullscreen:
1034                 ShowWindow (p_vout->p_sys->theWindow);
1035                 SetSystemUIMode( kUIModeAllHidden, kUIOptionAutoShowMenuBar);
1036                 //CGDisplayHideCursor(kCGDirectMainDisplay);
1037                 break;
1038             case kEventVLCPluginHideFullscreen:
1039                 HideWindow (p_vout->p_sys->theWindow);
1040                 SetSystemUIMode( kUIModeNormal, 0);
1041                 CGDisplayShowCursor(kCGDirectMainDisplay);
1042                 break;
1043             default:
1044                 result = eventNotHandledErr;
1045                 break;
1046         }
1047     }
1048     return result;
1049 }
1050
1051 static int aglLock( vout_thread_t * p_vout )
1052 {
1053         /* get the underlying CGL context */
1054     CGLContextObj cglContext;
1055     if( aglGetCGLContext(p_vout->p_sys->agl_ctx, (void**)&cglContext) )
1056     {
1057         if( kCGLNoError == CGLLockContext( cglContext ) )
1058         {
1059             aglSetCurrentContext(p_vout->p_sys->agl_ctx);
1060             return 0;
1061         }
1062     }
1063     return 1;
1064 }
1065
1066 static void aglUnlock( vout_thread_t * p_vout )
1067 {
1068         /* get the underlying CGL context */
1069     CGLContextObj cglContext;
1070     if( aglGetCGLContext(p_vout->p_sys->agl_ctx, (void**)&cglContext) )
1071     {
1072         CGLUnlockContext( cglContext );
1073     }
1074 }
1075
1076