git.sesse.net Git - vlc/blob - modules/video_output/directx/events.c

   1 /*****************************************************************************
   2  * events.c: Windows DirectX video output events handler
   3  *****************************************************************************
   4  * Copyright (C) 2001-2004 VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Gildas Bazin <gbazin@netcourrier.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24
  25 /*****************************************************************************
  26  * Preamble: This file contains the functions related to the creation of
  27  *             a window and the handling of its messages (events).
  28  *****************************************************************************/
  29 #include <errno.h>                                                 /* ENOMEM */
  30 #include <stdlib.h>                                                /* free() */
  31 #include <ctype.h>                                              /* tolower() */
  32 #include <string.h>                                            /* strerror() */
  33
  34 #include <vlc/vlc.h>
  35 #include <vlc/intf.h>
  36 #include <vlc/input.h>
  37 #include <vlc/vout.h>
  38
  39 #include <windows.h>
  40 #include <windowsx.h>
  41 #include <shellapi.h>
  42
  43 #include <ddraw.h>
  44
  45 #include "vlc_keys.h"
  46 #include "vout.h"
  47
  48 /*****************************************************************************
  49  * Local prototypes.
  50  *****************************************************************************/
  51 static int  DirectXCreateWindow( vout_thread_t *p_vout );
  52 static void DirectXCloseWindow ( vout_thread_t *p_vout );
  53 static long FAR PASCAL DirectXEventProc( HWND, UINT, WPARAM, LPARAM );
  54 static long FAR PASCAL DirectXVideoEventProc( HWND, UINT, WPARAM, LPARAM );
  55
  56 static void DirectXPopupMenu( event_thread_t *p_event, vlc_bool_t b_open )
  57 {
  58     playlist_t *p_playlist =
  59         vlc_object_find( p_event, VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
  60     if( p_playlist != NULL )
  61     {
  62         vlc_value_t val;
  63         val.b_bool = b_open;
  64         var_Set( p_playlist, "intf-popupmenu", val );
  65         vlc_object_release( p_playlist );
  66     }
  67 }
  68
  69 static int DirectXConvertKey( int i_key );
  70
  71 /*****************************************************************************
  72  * DirectXEventThread: Create video window & handle its messages
  73  *****************************************************************************
  74  * This function creates a video window and then enters an infinite loop
  75  * that handles the messages sent to that window.
  76  * The main goal of this thread is to isolate the Win32 PeekMessage function
  77  * because this one can block for a long time.
  78  *****************************************************************************/
  79 void DirectXEventThread( event_thread_t *p_event )
  80 {
  81     MSG msg;
  82     POINT old_mouse_pos = {0,0};
  83     vlc_value_t val;
  84     int i_width, i_height, i_x, i_y;
  85
  86     /* Initialisation */
  87
  88     /* Create a window for the video */
  89     /* Creating a window under Windows also initializes the thread's event
  90      * message queue */
  91     if( DirectXCreateWindow( p_event->p_vout ) )
  92     {
  93         msg_Err( p_event, "out of memory" );
  94         p_event->b_dead = VLC_TRUE;
  95     }
  96
  97     /* Signal the creation of the window */
  98     vlc_thread_ready( p_event );
  99
 100     /* Main loop */
 101     /* GetMessage will sleep if there's no message in the queue */
 102     while( !p_event->b_die && ( p_event->p_vout->p_sys->hparent ||
 103            GetMessage( &msg, p_event->p_vout->p_sys->hwnd, 0, 0 ) ) )
 104     {
 105         /* Check if we are asked to exit */
 106         if( p_event->b_die )
 107             break;
 108
 109         if( p_event->p_vout->p_sys->hparent )
 110         {
 111             /* Parent window was created in another thread so we can't
 112              * access the window messages. */
 113             msleep( INTF_IDLE_SLEEP );
 114             continue;
 115         }
 116
 117         switch( msg.message )
 118         {
 119
 120         case WM_MOUSEMOVE:
 121             vout_PlacePicture( p_event->p_vout,
 122                                p_event->p_vout->p_sys->i_window_width,
 123                                p_event->p_vout->p_sys->i_window_height,
 124                                &i_x, &i_y, &i_width, &i_height );
 125
 126             if( msg.hwnd != p_event->p_vout->p_sys->hwnd )
 127             {
 128                 /* Child window */
 129                 i_x = i_y = 0;
 130             }
 131
 132             val.i_int = ( GET_X_LPARAM(msg.lParam) - i_x )
 133                          * p_event->p_vout->render.i_width / i_width;
 134             var_Set( p_event->p_vout, "mouse-x", val );
 135             val.i_int = ( GET_Y_LPARAM(msg.lParam) - i_y )
 136                          * p_event->p_vout->render.i_height / i_height;
 137             var_Set( p_event->p_vout, "mouse-y", val );
 138
 139             val.b_bool = VLC_TRUE;
 140             var_Set( p_event->p_vout, "mouse-moved", val );
 141
 142         case WM_NCMOUSEMOVE:
 143             if( (abs(GET_X_LPARAM(msg.lParam) - old_mouse_pos.x) > 2 ||
 144                 (abs(GET_Y_LPARAM(msg.lParam) - old_mouse_pos.y)) > 2 ) )
 145             {
 146                 GetCursorPos( &old_mouse_pos );
 147                 p_event->p_vout->p_sys->i_lastmoved = mdate();
 148
 149                 if( p_event->p_vout->p_sys->b_cursor_hidden )
 150                 {
 151                     p_event->p_vout->p_sys->b_cursor_hidden = 0;
 152                     ShowCursor( TRUE );
 153                 }
 154             }
 155             break;
 156
 157         case WM_VLC_HIDE_MOUSE:
 158             GetCursorPos( &old_mouse_pos );
 159             ShowCursor( FALSE );
 160             break;
 161
 162         case WM_LBUTTONDOWN:
 163             var_Get( p_event->p_vout, "mouse-button-down", &val );
 164             val.i_int |= 1;
 165             var_Set( p_event->p_vout, "mouse-button-down", val );
 166             DirectXPopupMenu( p_event, VLC_FALSE );
 167             break;
 168
 169         case WM_LBUTTONUP:
 170             var_Get( p_event->p_vout, "mouse-button-down", &val );
 171             val.i_int &= ~1;
 172             var_Set( p_event->p_vout, "mouse-button-down", val );
 173
 174             val.b_bool = VLC_TRUE;
 175             var_Set( p_event->p_vout, "mouse-clicked", val );
 176             break;
 177
 178         case WM_LBUTTONDBLCLK:
 179             p_event->p_vout->p_sys->i_changes |= VOUT_FULLSCREEN_CHANGE;
 180             break;
 181
 182         case WM_MBUTTONDOWN:
 183             var_Get( p_event->p_vout, "mouse-button-down", &val );
 184             val.i_int |= 2;
 185             var_Set( p_event->p_vout, "mouse-button-down", val );
 186             DirectXPopupMenu( p_event, VLC_FALSE );
 187             break;
 188
 189         case WM_MBUTTONUP:
 190             var_Get( p_event->p_vout, "mouse-button-down", &val );
 191             val.i_int &= ~2;
 192             var_Set( p_event->p_vout, "mouse-button-down", val );
 193             break;
 194
 195         case WM_RBUTTONDOWN:
 196             var_Get( p_event->p_vout, "mouse-button-down", &val );
 197             val.i_int |= 4;
 198             var_Set( p_event->p_vout, "mouse-button-down", val );
 199             DirectXPopupMenu( p_event, VLC_FALSE );
 200             break;
 201
 202         case WM_RBUTTONUP:
 203             var_Get( p_event->p_vout, "mouse-button-down", &val );
 204             val.i_int &= ~4;
 205             var_Set( p_event->p_vout, "mouse-button-down", val );
 206             DirectXPopupMenu( p_event, VLC_TRUE );
 207             break;
 208
 209         case WM_KEYDOWN:
 210         case WM_SYSKEYDOWN:
 211             /* The key events are first processed here and not translated
 212              * into WM_CHAR events because we need to know the status of the
 213              * modifier keys. */
 214             val.i_int = DirectXConvertKey( msg.wParam );
 215             if( !val.i_int )
 216             {
 217                 /* This appears to be a "normal" (ascii) key */
 218                 val.i_int = tolower( MapVirtualKey( msg.wParam, 2 ) );
 219             }
 220
 221             if( val.i_int )
 222             {
 223                 if( GetKeyState(VK_CONTROL) & 0x8000 )
 224                 {
 225                     val.i_int |= KEY_MODIFIER_CTRL;
 226                 }
 227                 if( GetKeyState(VK_SHIFT) & 0x8000 )
 228                 {
 229                     val.i_int |= KEY_MODIFIER_SHIFT;
 230                 }
 231                 if( GetKeyState(VK_MENU) & 0x8000 )
 232                 {
 233                     val.i_int |= KEY_MODIFIER_ALT;
 234                 }
 235
 236                 var_Set( p_event->p_vlc, "key-pressed", val );
 237             }
 238             break;
 239
 240         case WM_MOUSEWHEEL:
 241             if( GET_WHEEL_DELTA_WPARAM( msg.wParam ) > 0 )
 242             {
 243                 val.i_int = KEY_MOUSEWHEELUP;
 244             }
 245             else
 246             {
 247                 val.i_int = KEY_MOUSEWHEELDOWN;
 248             }
 249             if( val.i_int )
 250             {
 251                 if( GetKeyState(VK_CONTROL) & 0x8000 )
 252                 {
 253                     val.i_int |= KEY_MODIFIER_CTRL;
 254                 }
 255                 if( GetKeyState(VK_SHIFT) & 0x8000 )
 256                 {
 257                     val.i_int |= KEY_MODIFIER_SHIFT;
 258                 }
 259                 if( GetKeyState(VK_MENU) & 0x8000 )
 260                 {
 261                     val.i_int |= KEY_MODIFIER_ALT;
 262                 }
 263
 264                 var_Set( p_event->p_vlc, "key-pressed", val );
 265             }
 266             break;
 267
 268         case WM_VLC_CHANGE_TEXT:
 269             if( p_event->p_vout->p_sys->b_using_overlay )
 270                 SetWindowText( p_event->p_vout->p_sys->hwnd,
 271                     VOUT_TITLE " (hardware YUV overlay DirectX output)" );
 272             else if( p_event->p_vout->p_sys->b_hw_yuv )
 273                 SetWindowText( p_event->p_vout->p_sys->hwnd,
 274                     VOUT_TITLE " (hardware YUV DirectX output)" );
 275             else SetWindowText( p_event->p_vout->p_sys->hwnd,
 276                     VOUT_TITLE " (software RGB DirectX output)" );
 277             break;
 278
 279         default:
 280             /* Messages we don't handle directly are dispatched to the
 281              * window procedure */
 282             TranslateMessage(&msg);
 283             DispatchMessage(&msg);
 284             break;
 285
 286         } /* End Switch */
 287
 288     } /* End Main loop */
 289
 290     if( msg.message == WM_QUIT )
 291     {
 292         msg_Warn( p_event, "WM_QUIT... should not happen!!" );
 293         p_event->p_vout->p_sys->hwnd = NULL; /* Window already destroyed */
 294     }
 295
 296     msg_Dbg( p_event, "DirectXEventThread terminating" );
 297
 298     /* clear the changes formerly signaled */
 299     p_event->p_vout->p_sys->i_changes = 0;
 300
 301     DirectXCloseWindow( p_event->p_vout );
 302 }
 303
 304
 305 /* following functions are local */
 306
 307 /*****************************************************************************
 308  * DirectXCreateWindow: create a window for the video.
 309  *****************************************************************************
 310  * Before creating a direct draw surface, we need to create a window in which
 311  * the video will be displayed. This window will also allow us to capture the
 312  * events.
 313  *****************************************************************************/
 314 static int DirectXCreateWindow( vout_thread_t *p_vout )
 315 {
 316     HINSTANCE  hInstance;
 317     HMENU      hMenu;
 318     RECT       rect_window;
 319
 320     vlc_value_t val;
 321
 322     msg_Dbg( p_vout, "DirectXCreateWindow" );
 323
 324     /* Get this module's instance */
 325     hInstance = GetModuleHandle(NULL);
 326
 327     /* If an external window was specified, we'll draw in it. */
 328     var_Get( p_vout->p_vlc, "drawable", &val );
 329     p_vout->p_sys->hparent = p_vout->p_sys->hwnd =
 330              val.i_int ?  (void*)(ptrdiff_t) val.i_int : NULL;
 331
 332     if( p_vout->p_sys->hparent )
 333     {
 334         msg_Dbg( p_vout, "using external window %p\n", p_vout->p_sys->hwnd );
 335
 336         /* Set stuff in the window that we can not put directly in
 337          * a class (see below). */
 338         SetClassLong( p_vout->p_sys->hwnd,
 339                       GCL_STYLE, CS_DBLCLKS );
 340         SetClassLong( p_vout->p_sys->hwnd,
 341                       GCL_HBRBACKGROUND, (LONG)GetStockObject(BLACK_BRUSH) );
 342         SetClassLong( p_vout->p_sys->hwnd,
 343                       GCL_HCURSOR, (LONG)LoadCursor(NULL, IDC_ARROW) );
 344         /* Store a p_vout pointer into the window local storage (for later
 345          * use in DirectXEventProc). */
 346         SetWindowLong( p_vout->p_sys->hwnd, GWL_USERDATA, (LONG)p_vout );
 347
 348         p_vout->p_sys->pf_wndproc =
 349                (WNDPROC)SetWindowLong( p_vout->p_sys->hwnd,
 350                                        GWL_WNDPROC, (LONG)DirectXEventProc );
 351
 352         /* Blam! Erase everything that might have been there. */
 353         InvalidateRect( p_vout->p_sys->hwnd, NULL, TRUE );
 354     }
 355     else
 356     {
 357         WNDCLASSEX wc;                            /* window class components */
 358         HICON      vlc_icon = NULL;
 359         char       vlc_path[MAX_PATH+1];
 360
 361         /* Get the Icon from the main app */
 362         vlc_icon = NULL;
 363         if( GetModuleFileName( NULL, vlc_path, MAX_PATH ) )
 364         {
 365             vlc_icon = ExtractIcon( hInstance, vlc_path, 0 );
 366         }
 367
 368         /* Fill in the window class structure */
 369         wc.cbSize        = sizeof(WNDCLASSEX);
 370         wc.style         = CS_DBLCLKS;                   /* style: dbl click */
 371         wc.lpfnWndProc   = (WNDPROC)DirectXEventProc;       /* event handler */
 372         wc.cbClsExtra    = 0;                         /* no extra class data */
 373         wc.cbWndExtra    = 0;                        /* no extra window data */
 374         wc.hInstance     = hInstance;                            /* instance */
 375         wc.hIcon         = vlc_icon;                /* load the vlc big icon */
 376         wc.hCursor       = LoadCursor(NULL, IDC_ARROW);    /* default cursor */
 377         wc.hbrBackground = GetStockObject(BLACK_BRUSH);  /* background color */
 378         wc.lpszMenuName  = NULL;                                  /* no menu */
 379         wc.lpszClassName = "VLC DirectX";             /* use a special class */
 380         wc.hIconSm       = vlc_icon;              /* load the vlc small icon */
 381
 382         /* Register the window class */
 383         if( !RegisterClassEx(&wc) )
 384         {
 385             WNDCLASS wndclass;
 386
 387             if( vlc_icon )
 388             {
 389                 DestroyIcon( vlc_icon );
 390             }
 391
 392             /* Check why it failed. If it's because one already exists
 393              * then fine, otherwise return with an error. */
 394             if( !GetClassInfo( hInstance, "VLC DirectX", &wndclass ) )
 395             {
 396                 msg_Err( p_vout, "DirectXCreateWindow RegisterClass FAILED" );
 397                 return VLC_EGENERIC;
 398             }
 399         }
 400
 401         /* When you create a window you give the dimensions you wish it to
 402          * have. Unfortunatly these dimensions will include the borders and
 403          * titlebar. We use the following function to find out the size of
 404          * the window corresponding to the useable surface we want */
 405         rect_window.top    = 10;
 406         rect_window.left   = 10;
 407         rect_window.right  = rect_window.left + p_vout->p_sys->i_window_width;
 408         rect_window.bottom = rect_window.top + p_vout->p_sys->i_window_height;
 409         AdjustWindowRect( &rect_window, WS_OVERLAPPEDWINDOW|WS_SIZEBOX, 0 );
 410
 411         /* Create the window */
 412         p_vout->p_sys->hwnd =
 413             CreateWindow( "VLC DirectX",             /* name of window class */
 414                     VOUT_TITLE " (DirectX Output)", /* window title bar text */
 415                     WS_OVERLAPPEDWINDOW | WS_SIZEBOX | WS_VISIBLE |
 416                     WS_CLIPCHILDREN,                         /* window style */
 417                     CW_USEDEFAULT,                   /* default X coordinate */
 418                     0,                               /* default Y coordinate */
 419                     rect_window.right - rect_window.left,    /* window width */
 420                     rect_window.bottom - rect_window.top,   /* window height */
 421                     NULL,                                /* no parent window */
 422                     NULL,                          /* no menu in this window */
 423                     hInstance,            /* handle of this program instance */
 424                     (LPVOID)p_vout );            /* send p_vout to WM_CREATE */
 425
 426         if( !p_vout->p_sys->hwnd )
 427         {
 428             msg_Warn( p_vout, "DirectXCreateWindow create window FAILED" );
 429             return VLC_EGENERIC;
 430         }
 431     }
 432
 433     /* Now display the window */
 434     ShowWindow( p_vout->p_sys->hwnd, SW_SHOW );
 435
 436     /* Create video sub-window. This sub window will always exactly match
 437      * the size of the video, which allows us to use crazy overlay colorkeys
 438      * without having them shown outside of the video area. */
 439     SendMessage( p_vout->p_sys->hwnd, WM_VLC_CREATE_VIDEO_WIN, 0, 0 );
 440
 441     /* Append a "Always On Top" entry in the system menu */
 442     hMenu = GetSystemMenu( p_vout->p_sys->hwnd, FALSE );
 443     AppendMenu( hMenu, MF_SEPARATOR, 0, "" );
 444     AppendMenu( hMenu, MF_STRING | MF_UNCHECKED,
 445                        IDM_TOGGLE_ON_TOP, "Always on &Top" );
 446
 447     return VLC_SUCCESS;
 448 }
 449
 450 /*****************************************************************************
 451  * DirectXCloseWindow: close the window created by DirectXCreateWindow
 452  *****************************************************************************
 453  * This function returns all resources allocated by DirectXCreateWindow.
 454  *****************************************************************************/
 455 static void DirectXCloseWindow( vout_thread_t *p_vout )
 456 {
 457     msg_Dbg( p_vout, "DirectXCloseWindow" );
 458
 459     if( p_vout->p_sys->hwnd && !p_vout->p_sys->hparent )
 460     {
 461         DestroyWindow( p_vout->p_sys->hwnd );
 462     }
 463     else if( p_vout->p_sys->hparent )
 464     {
 465         /* Get rid of the video sub-window */
 466         PostMessage( p_vout->p_sys->hvideownd, WM_VLC_DESTROY_VIDEO_WIN, 0, 0);
 467
 468         /* We don't want our windowproc to be called anymore */
 469         SetWindowLong( p_vout->p_sys->hwnd,
 470                        GWL_WNDPROC, (LONG)p_vout->p_sys->pf_wndproc );
 471         SetWindowLong( p_vout->p_sys->hwnd, GWL_USERDATA, (LONG)NULL );
 472
 473         /* Blam! Erase everything that might have been there. */
 474         InvalidateRect( p_vout->p_sys->hwnd, NULL, TRUE );
 475     }
 476
 477     p_vout->p_sys->hwnd = NULL;
 478
 479     /* We don't unregister the Window Class because it could lead to race
 480      * conditions and it will be done anyway by the system when the app will
 481      * exit */
 482 }
 483
 484 /*****************************************************************************
 485  * DirectXUpdateRects: update clipping rectangles
 486  *****************************************************************************
 487  * This function is called when the window position or size are changed, and
 488  * its job is to update the source and destination RECTs used to display the
 489  * picture.
 490  *****************************************************************************/
 491 void DirectXUpdateRects( vout_thread_t *p_vout, vlc_bool_t b_force )
 492 {
 493 #define rect_src p_vout->p_sys->rect_src
 494 #define rect_src_clipped p_vout->p_sys->rect_src_clipped
 495 #define rect_dest p_vout->p_sys->rect_dest
 496 #define rect_dest_clipped p_vout->p_sys->rect_dest_clipped
 497
 498     int i_width, i_height, i_x, i_y;
 499
 500     RECT  rect;
 501     POINT point;
 502
 503     /* Retrieve the window size */
 504     GetClientRect( p_vout->p_sys->hwnd, &rect );
 505
 506     /* Retrieve the window position */
 507     point.x = point.y = 0;
 508     ClientToScreen( p_vout->p_sys->hwnd, &point );
 509
 510     /* If nothing changed, we can return */
 511     if( !b_force
 512          && p_vout->p_sys->i_window_width == rect.right
 513          && p_vout->p_sys->i_window_height == rect.bottom
 514          && p_vout->p_sys->i_window_x == point.x
 515          && p_vout->p_sys->i_window_y == point.y )
 516     {
 517         return;
 518     }
 519
 520     /* Update the window position and size */
 521     p_vout->p_sys->i_window_x = point.x;
 522     p_vout->p_sys->i_window_y = point.y;
 523     p_vout->p_sys->i_window_width = rect.right;
 524     p_vout->p_sys->i_window_height = rect.bottom;
 525
 526     vout_PlacePicture( p_vout, rect.right, rect.bottom,
 527                        &i_x, &i_y, &i_width, &i_height );
 528
 529     if( p_vout->p_sys->hvideownd )
 530         SetWindowPos( p_vout->p_sys->hvideownd, HWND_TOP,
 531                       i_x, i_y, i_width, i_height, 0 );
 532
 533     /* Destination image position and dimensions */
 534     rect_dest.left = point.x + i_x;
 535     rect_dest.right = rect_dest.left + i_width;
 536     rect_dest.top = point.y + i_y;
 537     rect_dest.bottom = rect_dest.top + i_height;
 538
 539     /* Apply overlay hardware constraints */
 540     if( p_vout->p_sys->b_using_overlay )
 541     {
 542         if( p_vout->p_sys->i_align_dest_boundary )
 543             rect_dest.left = ( rect_dest.left +
 544                 p_vout->p_sys->i_align_dest_boundary / 2 ) &
 545                 ~p_vout->p_sys->i_align_dest_boundary;
 546
 547         if( p_vout->p_sys->i_align_dest_size )
 548             rect_dest.right = (( rect_dest.right - rect_dest.left +
 549                 p_vout->p_sys->i_align_dest_size / 2 ) &
 550                 ~p_vout->p_sys->i_align_dest_size) + rect_dest.left;
 551     }
 552
 553     /* UpdateOverlay directdraw function doesn't automatically clip to the
 554      * display size so we need to do it otherwise it will fail */
 555
 556     /* Clip the destination window */
 557     if( !IntersectRect( &rect_dest_clipped, &rect_dest,
 558                         &p_vout->p_sys->rect_display ) )
 559     {
 560         SetRectEmpty( &rect_src_clipped );
 561         return;
 562     }
 563
 564 #if 0
 565     msg_Dbg( p_vout, "DirectXUpdateRects image_dst_clipped coords:"
 566                      " %i,%i,%i,%i",
 567                      rect_dest_clipped.left, rect_dest_clipped.top,
 568                      rect_dest_clipped.right, rect_dest_clipped.bottom );
 569 #endif
 570
 571     /* the 2 following lines are to fix a bug when clicking on the desktop */
 572     if( (rect_dest_clipped.right - rect_dest_clipped.left)==0 ||
 573         (rect_dest_clipped.bottom - rect_dest_clipped.top)==0 )
 574     {
 575         SetRectEmpty( &rect_src_clipped );
 576         return;
 577     }
 578
 579     /* src image dimensions */
 580     rect_src.left = 0;
 581     rect_src.top = 0;
 582     rect_src.right = p_vout->render.i_width;
 583     rect_src.bottom = p_vout->render.i_height;
 584
 585     /* Clip the source image */
 586     rect_src_clipped.left = (rect_dest_clipped.left - rect_dest.left) *
 587       p_vout->render.i_width / (rect_dest.right - rect_dest.left);
 588     rect_src_clipped.right = p_vout->render.i_width -
 589       (rect_dest.right - rect_dest_clipped.right) * p_vout->render.i_width /
 590       (rect_dest.right - rect_dest.left);
 591     rect_src_clipped.top = (rect_dest_clipped.top - rect_dest.top) *
 592       p_vout->render.i_height / (rect_dest.bottom - rect_dest.top);
 593     rect_src_clipped.bottom = p_vout->render.i_height -
 594       (rect_dest.bottom - rect_dest_clipped.bottom) * p_vout->render.i_height /
 595       (rect_dest.bottom - rect_dest.top);
 596
 597     /* Apply overlay hardware constraints */
 598     if( p_vout->p_sys->b_using_overlay )
 599     {
 600         if( p_vout->p_sys->i_align_src_boundary )
 601             rect_src_clipped.left = ( rect_src_clipped.left +
 602                 p_vout->p_sys->i_align_src_boundary / 2 ) &
 603                 ~p_vout->p_sys->i_align_src_boundary;
 604
 605         if( p_vout->p_sys->i_align_src_size )
 606             rect_src_clipped.right = (( rect_src_clipped.right -
 607                 rect_src_clipped.left +
 608                 p_vout->p_sys->i_align_src_size / 2 ) &
 609                 ~p_vout->p_sys->i_align_src_size) + rect_src_clipped.left;
 610     }
 611
 612 #if 0
 613     msg_Dbg( p_vout, "DirectXUpdateRects image_src_clipped"
 614                      " coords: %i,%i,%i,%i",
 615                      rect_src_clipped.left, rect_src_clipped.top,
 616                      rect_src_clipped.right, rect_src_clipped.bottom );
 617 #endif
 618
 619     /* The destination coordinates need to be relative to the current
 620      * directdraw primary surface (display) */
 621     rect_dest_clipped.left -= p_vout->p_sys->rect_display.left;
 622     rect_dest_clipped.right -= p_vout->p_sys->rect_display.left;
 623     rect_dest_clipped.top -= p_vout->p_sys->rect_display.top;
 624     rect_dest_clipped.bottom -= p_vout->p_sys->rect_display.top;
 625
 626     /* Signal the change in size/position */
 627     p_vout->p_sys->i_changes |= DX_POSITION_CHANGE;
 628
 629 #undef rect_src
 630 #undef rect_src_clipped
 631 #undef rect_dest
 632 #undef rect_dest_clipped
 633 }
 634
 635 /*****************************************************************************
 636  * DirectXEventProc: This is the window event processing function.
 637  *****************************************************************************
 638  * On Windows, when you create a window you have to attach an event processing
 639  * function to it. The aim of this function is to manage "Queued Messages" and
 640  * "Nonqueued Messages".
 641  * Queued Messages are those picked up and retransmitted by vout_Manage
 642  * (using the GetMessage and DispatchMessage functions).
 643  * Nonqueued Messages are those that Windows will send directly to this
 644  * procedure (like WM_DESTROY, WM_WINDOWPOSCHANGED...)
 645  *****************************************************************************/
 646 static long FAR PASCAL DirectXEventProc( HWND hwnd, UINT message,
 647                                          WPARAM wParam, LPARAM lParam )
 648 {
 649     vout_thread_t *p_vout;
 650
 651     if( message == WM_CREATE )
 652     {
 653         /* Store p_vout for future use */
 654         p_vout = (vout_thread_t *)((CREATESTRUCT *)lParam)->lpCreateParams;
 655         SetWindowLong( hwnd, GWL_USERDATA, (LONG)p_vout );
 656     }
 657     else
 658     {
 659         p_vout = (vout_thread_t *)GetWindowLong( hwnd, GWL_USERDATA );
 660     }
 661
 662     if( !p_vout )
 663     {
 664         /* Hmmm mozilla does manage somehow to save the pointer to our
 665          * windowproc and still calls it after the vout has been closed. */
 666         return DefWindowProc(hwnd, message, wParam, lParam);
 667     }
 668
 669     switch( message )
 670     {
 671
 672     case WM_WINDOWPOSCHANGED:
 673         DirectXUpdateRects( p_vout, VLC_TRUE );
 674         return 0;
 675
 676     /* the user wants to close the window */
 677     case WM_CLOSE:
 678     {
 679         playlist_t * p_playlist =
 680             (playlist_t *)vlc_object_find( p_vout, VLC_OBJECT_PLAYLIST,
 681                                            FIND_ANYWHERE );
 682         if( p_playlist == NULL )
 683         {
 684             return 0;
 685         }
 686
 687         playlist_Stop( p_playlist );
 688         vlc_object_release( p_playlist );
 689         return 0;
 690     }
 691
 692     /* the window has been closed so shut down everything now */
 693     case WM_DESTROY:
 694         msg_Dbg( p_vout, "WinProc WM_DESTROY" );
 695         /* just destroy the window */
 696         PostQuitMessage( 0 );
 697         return 0;
 698
 699     case WM_SYSCOMMAND:
 700         switch (wParam)
 701         {
 702             case SC_SCREENSAVE:                     /* catch the screensaver */
 703             case SC_MONITORPOWER:              /* catch the monitor turn-off */
 704                 msg_Dbg( p_vout, "WinProc WM_SYSCOMMAND" );
 705                 return 0;                  /* this stops them from happening */
 706             case IDM_TOGGLE_ON_TOP:            /* toggle the "on top" status */
 707             {
 708                 vlc_value_t val;
 709                 msg_Dbg( p_vout, "WinProc WM_SYSCOMMAND: IDM_TOGGLE_ON_TOP");
 710
 711                 /* Get the current value... */
 712                 if( var_Get( p_vout, "video-on-top", &val ) < 0 )
 713                     return 0;
 714                 /* ...and change it */
 715                 val.b_bool = !val.b_bool;
 716                 var_Set( p_vout, "video-on-top", val );
 717                 return 0;
 718                 break;
 719             }
 720         }
 721         break;
 722
 723     case WM_VLC_CREATE_VIDEO_WIN:
 724         /* Create video sub-window */
 725         p_vout->p_sys->hvideownd =
 726             CreateWindow( "STATIC", "",   /* window class and title bar text */
 727                     WS_CHILD | WS_VISIBLE,                   /* window style */
 728                     CW_USEDEFAULT, CW_USEDEFAULT,     /* default coordinates */
 729                     CW_USEDEFAULT, CW_USEDEFAULT,
 730                     hwnd,                                   /* parent window */
 731                     NULL, GetModuleHandle(NULL), NULL );
 732
 733         if( !p_vout->p_sys->hvideownd )
 734         {
 735             msg_Warn( p_vout, "Can't create video sub-window" );
 736         }
 737         else
 738         {
 739             msg_Dbg( p_vout, "Created video sub-window" );
 740             SetWindowLong( p_vout->p_sys->hvideownd,
 741                            GWL_WNDPROC, (LONG)DirectXVideoEventProc );
 742         }
 743         break;
 744
 745     default:
 746         //msg_Dbg( p_vout, "WinProc WM Default %i", message );
 747         break;
 748     }
 749
 750     return DefWindowProc(hwnd, message, wParam, lParam);
 751 }
 752 static long FAR PASCAL DirectXVideoEventProc( HWND hwnd, UINT message,
 753                                               WPARAM wParam, LPARAM lParam )
 754 {
 755     switch( message )
 756     {
 757     case WM_VLC_DESTROY_VIDEO_WIN:
 758         /* Destroy video sub-window */
 759         DestroyWindow( hwnd );
 760         break;
 761     }
 762
 763     return DefWindowProc(hwnd, message, wParam, lParam);
 764 }
 765
 766 static struct
 767 {
 768     int i_dxkey;
 769     int i_vlckey;
 770
 771 } dxkeys_to_vlckeys[] =
 772 {
 773     { VK_F1, KEY_F1 }, { VK_F2, KEY_F2 }, { VK_F3, KEY_F3 }, { VK_F4, KEY_F4 },
 774     { VK_F5, KEY_F5 }, { VK_F6, KEY_F6 }, { VK_F7, KEY_F7 }, { VK_F8, KEY_F8 },
 775     { VK_F9, KEY_F9 }, { VK_F10, KEY_F10 }, { VK_F11, KEY_F11 },
 776     { VK_F12, KEY_F12 },
 777
 778     { VK_RETURN, KEY_ENTER },
 779     { VK_SPACE, KEY_SPACE },
 780     { VK_ESCAPE, KEY_ESC },
 781
 782     { VK_LEFT, KEY_LEFT },
 783     { VK_RIGHT, KEY_RIGHT },
 784     { VK_UP, KEY_UP },
 785     { VK_DOWN, KEY_DOWN },
 786
 787     { VK_HOME, KEY_HOME },
 788     { VK_END, KEY_END },
 789     { VK_PRIOR, KEY_PAGEUP },
 790     { VK_NEXT, KEY_PAGEDOWN },
 791
 792     { VK_CONTROL, 0 },
 793     { VK_SHIFT, 0 },
 794     { VK_MENU, 0 },
 795
 796     { 0, 0 }
 797 };
 798
 799 static int DirectXConvertKey( int i_key )
 800 {
 801     int i;
 802
 803     for( i = 0; dxkeys_to_vlckeys[i].i_dxkey != 0; i++ )
 804     {
 805         if( dxkeys_to_vlckeys[i].i_dxkey == i_key )
 806         {
 807             return dxkeys_to_vlckeys[i].i_vlckey;
 808         }
 809     }
 810
 811     return 0;
 812 }