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 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Gildas Bazin <gbazin@videolan.org>
   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 #ifndef _WIN32_WINNT
  35 #   define _WIN32_WINNT 0x0400
  36 #endif
  37
  38 #include <vlc/vlc.h>
  39 #include <vlc/intf.h>
  40 #include <vlc/input.h>
  41 #include <vlc/vout.h>
  42
  43 #include <windows.h>
  44 #include <windowsx.h>
  45 #include <shellapi.h>
  46
  47 #include <ddraw.h>
  48
  49 #include "vlc_keys.h"
  50 #include "vout.h"
  51
  52 /*****************************************************************************
  53  * Local prototypes.
  54  *****************************************************************************/
  55 static int  DirectXCreateWindow( vout_thread_t *p_vout );
  56 static void DirectXCloseWindow ( vout_thread_t *p_vout );
  57 static long FAR PASCAL DirectXEventProc( HWND, UINT, WPARAM, LPARAM );
  58
  59 static int Control( vout_thread_t *p_vout, int i_query, va_list args );
  60
  61 static void DirectXPopupMenu( event_thread_t *p_event, vlc_bool_t b_open )
  62 {
  63     playlist_t *p_playlist =
  64         vlc_object_find( p_event, VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
  65     if( p_playlist != NULL )
  66     {
  67         vlc_value_t val;
  68         val.b_bool = b_open;
  69         var_Set( p_playlist, "intf-popupmenu", val );
  70         vlc_object_release( p_playlist );
  71     }
  72 }
  73
  74 static int DirectXConvertKey( int i_key );
  75
  76 /*****************************************************************************
  77  * DirectXEventThread: Create video window & handle its messages
  78  *****************************************************************************
  79  * This function creates a video window and then enters an infinite loop
  80  * that handles the messages sent to that window.
  81  * The main goal of this thread is to isolate the Win32 PeekMessage function
  82  * because this one can block for a long time.
  83  *****************************************************************************/
  84 void E_(DirectXEventThread)( event_thread_t *p_event )
  85 {
  86     MSG msg;
  87     POINT old_mouse_pos = {0,0}, mouse_pos;
  88     vlc_value_t val;
  89     int i_width, i_height, i_x, i_y;
  90     HMODULE hkernel32;
  91
  92     /* Initialisation */
  93     p_event->p_vout->pf_control = Control;
  94
  95     /* Create a window for the video */
  96     /* Creating a window under Windows also initializes the thread's event
  97      * message queue */
  98     if( DirectXCreateWindow( p_event->p_vout ) )
  99     {
 100         msg_Err( p_event, "out of memory" );
 101         p_event->b_dead = VLC_TRUE;
 102     }
 103
 104     /* Signal the creation of the window */
 105     vlc_thread_ready( p_event );
 106
 107     /* Set power management stuff */
 108     if( (hkernel32 = GetModuleHandle( _T("KERNEL32") ) ) )
 109     {
 110         ULONG (WINAPI* OurSetThreadExecutionState)( ULONG );
 111
 112         OurSetThreadExecutionState = (ULONG (WINAPI*)( ULONG ))
 113             GetProcAddress( hkernel32, _T("SetThreadExecutionState") );
 114
 115         if( OurSetThreadExecutionState )
 116             /* Prevent monitor from powering off */
 117             OurSetThreadExecutionState( ES_DISPLAY_REQUIRED | ES_CONTINUOUS );
 118         else
 119             msg_Dbg( p_event, "no support for SetThreadExecutionState()" );
 120     }
 121
 122     /* Main loop */
 123     /* GetMessage will sleep if there's no message in the queue */
 124     while( !p_event->b_die && GetMessage( &msg, 0, 0, 0 ) )
 125     {
 126         /* Check if we are asked to exit */
 127         if( p_event->b_die )
 128             break;
 129
 130         switch( msg.message )
 131         {
 132
 133         case WM_MOUSEMOVE:
 134             vout_PlacePicture( p_event->p_vout,
 135                                p_event->p_vout->p_sys->i_window_width,
 136                                p_event->p_vout->p_sys->i_window_height,
 137                                &i_x, &i_y, &i_width, &i_height );
 138
 139             if( msg.hwnd == p_event->p_vout->p_sys->hvideownd )
 140             {
 141                 /* Child window */
 142                 i_x = i_y = 0;
 143             }
 144
 145             if( i_width && i_height )
 146             {
 147                 val.i_int = ( GET_X_LPARAM(msg.lParam) - i_x ) *
 148                     p_event->p_vout->fmt_in.i_visible_width / i_width +
 149                     p_event->p_vout->fmt_in.i_x_offset;
 150                 var_Set( p_event->p_vout, "mouse-x", val );
 151                 val.i_int = ( GET_Y_LPARAM(msg.lParam) - i_y ) *
 152                     p_event->p_vout->fmt_in.i_visible_height / i_height +
 153                     p_event->p_vout->fmt_in.i_y_offset;
 154                 var_Set( p_event->p_vout, "mouse-y", val );
 155
 156                 val.b_bool = VLC_TRUE;
 157                 var_Set( p_event->p_vout, "mouse-moved", val );
 158             }
 159
 160         case WM_NCMOUSEMOVE:
 161             GetCursorPos( &mouse_pos );
 162             if( (abs(mouse_pos.x - old_mouse_pos.x) > 2 ||
 163                 (abs(mouse_pos.y - old_mouse_pos.y)) > 2 ) )
 164             {
 165                 GetCursorPos( &old_mouse_pos );
 166                 p_event->p_vout->p_sys->i_lastmoved = mdate();
 167
 168                 if( p_event->p_vout->p_sys->b_cursor_hidden )
 169                 {
 170                     p_event->p_vout->p_sys->b_cursor_hidden = 0;
 171                     ShowCursor( TRUE );
 172                 }
 173             }
 174             break;
 175
 176         case WM_VLC_HIDE_MOUSE:
 177             if( p_event->p_vout->p_sys->b_cursor_hidden ) break;
 178             p_event->p_vout->p_sys->b_cursor_hidden = VLC_TRUE;
 179             GetCursorPos( &old_mouse_pos );
 180             ShowCursor( FALSE );
 181             break;
 182
 183         case WM_VLC_SHOW_MOUSE:
 184             if( !p_event->p_vout->p_sys->b_cursor_hidden ) break;
 185             p_event->p_vout->p_sys->b_cursor_hidden = VLC_FALSE;
 186             GetCursorPos( &old_mouse_pos );
 187             ShowCursor( TRUE );
 188             break;
 189
 190         case WM_LBUTTONDOWN:
 191             var_Get( p_event->p_vout, "mouse-button-down", &val );
 192             val.i_int |= 1;
 193             var_Set( p_event->p_vout, "mouse-button-down", val );
 194             DirectXPopupMenu( p_event, VLC_FALSE );
 195             break;
 196
 197         case WM_LBUTTONUP:
 198             var_Get( p_event->p_vout, "mouse-button-down", &val );
 199             val.i_int &= ~1;
 200             var_Set( p_event->p_vout, "mouse-button-down", val );
 201
 202             val.b_bool = VLC_TRUE;
 203             var_Set( p_event->p_vout, "mouse-clicked", val );
 204             break;
 205
 206         case WM_LBUTTONDBLCLK:
 207             p_event->p_vout->p_sys->i_changes |= VOUT_FULLSCREEN_CHANGE;
 208             break;
 209
 210         case WM_MBUTTONDOWN:
 211             var_Get( p_event->p_vout, "mouse-button-down", &val );
 212             val.i_int |= 2;
 213             var_Set( p_event->p_vout, "mouse-button-down", val );
 214             DirectXPopupMenu( p_event, VLC_FALSE );
 215             break;
 216
 217         case WM_MBUTTONUP:
 218             var_Get( p_event->p_vout, "mouse-button-down", &val );
 219             val.i_int &= ~2;
 220             var_Set( p_event->p_vout, "mouse-button-down", val );
 221             break;
 222
 223         case WM_RBUTTONDOWN:
 224             var_Get( p_event->p_vout, "mouse-button-down", &val );
 225             val.i_int |= 4;
 226             var_Set( p_event->p_vout, "mouse-button-down", val );
 227             DirectXPopupMenu( p_event, VLC_FALSE );
 228             break;
 229
 230         case WM_RBUTTONUP:
 231             var_Get( p_event->p_vout, "mouse-button-down", &val );
 232             val.i_int &= ~4;
 233             var_Set( p_event->p_vout, "mouse-button-down", val );
 234             DirectXPopupMenu( p_event, VLC_TRUE );
 235             break;
 236
 237         case WM_KEYDOWN:
 238         case WM_SYSKEYDOWN:
 239             /* The key events are first processed here and not translated
 240              * into WM_CHAR events because we need to know the status of the
 241              * modifier keys. */
 242             val.i_int = DirectXConvertKey( msg.wParam );
 243             if( !val.i_int )
 244             {
 245                 /* This appears to be a "normal" (ascii) key */
 246                 val.i_int = tolower( MapVirtualKey( msg.wParam, 2 ) );
 247             }
 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_MOUSEWHEEL:
 269             if( GET_WHEEL_DELTA_WPARAM( msg.wParam ) > 0 )
 270             {
 271                 val.i_int = KEY_MOUSEWHEELUP;
 272             }
 273             else
 274             {
 275                 val.i_int = KEY_MOUSEWHEELDOWN;
 276             }
 277             if( val.i_int )
 278             {
 279                 if( GetKeyState(VK_CONTROL) & 0x8000 )
 280                 {
 281                     val.i_int |= KEY_MODIFIER_CTRL;
 282                 }
 283                 if( GetKeyState(VK_SHIFT) & 0x8000 )
 284                 {
 285                     val.i_int |= KEY_MODIFIER_SHIFT;
 286                 }
 287                 if( GetKeyState(VK_MENU) & 0x8000 )
 288                 {
 289                     val.i_int |= KEY_MODIFIER_ALT;
 290                 }
 291
 292                 var_Set( p_event->p_vlc, "key-pressed", val );
 293             }
 294             break;
 295
 296         case WM_VLC_CHANGE_TEXT:
 297             var_Get( p_event->p_vout, "video-title", &val );
 298
 299             if( !val.psz_string || !*val.psz_string ) /* Default video title */
 300             {
 301 #ifdef MODULE_NAME_IS_glwin32
 302                 SetWindowText( p_event->p_vout->p_sys->hwnd,
 303                     _T(VOUT_TITLE) _T(" (OpenGL output)") );
 304 #else
 305                 if( p_event->p_vout->p_sys->b_using_overlay )
 306                     SetWindowText( p_event->p_vout->p_sys->hwnd, _T(VOUT_TITLE)
 307                         _T(" (hardware YUV overlay DirectX output)") );
 308                 else if( p_event->p_vout->p_sys->b_hw_yuv )
 309                     SetWindowText( p_event->p_vout->p_sys->hwnd, _T(VOUT_TITLE)
 310                         _T(" (hardware YUV DirectX output)") );
 311                 else
 312                     SetWindowText( p_event->p_vout->p_sys->hwnd, _T(VOUT_TITLE)
 313                         _T(" (software RGB DirectX output)") );
 314 #endif
 315             }
 316             else
 317             {
 318                 SetWindowText( p_event->p_vout->p_sys->hwnd, val.psz_string );
 319             }
 320             break;
 321
 322         default:
 323             /* Messages we don't handle directly are dispatched to the
 324              * window procedure */
 325             TranslateMessage(&msg);
 326             DispatchMessage(&msg);
 327             break;
 328
 329         } /* End Switch */
 330
 331     } /* End Main loop */
 332
 333     /* Check for WM_QUIT if we created the window */
 334     if( !p_event->p_vout->p_sys->hparent && msg.message == WM_QUIT )
 335     {
 336         msg_Warn( p_event, "WM_QUIT... should not happen!!" );
 337         p_event->p_vout->p_sys->hwnd = NULL; /* Window already destroyed */
 338     }
 339
 340     msg_Dbg( p_event, "DirectXEventThread terminating" );
 341
 342     /* clear the changes formerly signaled */
 343     p_event->p_vout->p_sys->i_changes = 0;
 344
 345     DirectXCloseWindow( p_event->p_vout );
 346 }
 347
 348
 349 /* following functions are local */
 350
 351 /*****************************************************************************
 352  * DirectXCreateWindow: create a window for the video.
 353  *****************************************************************************
 354  * Before creating a direct draw surface, we need to create a window in which
 355  * the video will be displayed. This window will also allow us to capture the
 356  * events.
 357  *****************************************************************************/
 358 static int DirectXCreateWindow( vout_thread_t *p_vout )
 359 {
 360     HINSTANCE  hInstance;
 361     HMENU      hMenu;
 362     RECT       rect_window;
 363     WNDCLASS   wc;                            /* window class components */
 364     HICON      vlc_icon = NULL;
 365     char       vlc_path[MAX_PATH+1];
 366     int        i_style, i_stylex;
 367
 368     msg_Dbg( p_vout, "DirectXCreateWindow" );
 369
 370     /* Get this module's instance */
 371     hInstance = GetModuleHandle(NULL);
 372
 373     /* If an external window was specified, we'll draw in it. */
 374     p_vout->p_sys->hparent =
 375         vout_RequestWindow( p_vout, &p_vout->p_sys->i_window_x,
 376                             &p_vout->p_sys->i_window_y,
 377                             &p_vout->p_sys->i_window_width,
 378                             &p_vout->p_sys->i_window_height );
 379
 380     /* We create the window ourself, there is no previous window proc. */
 381     p_vout->p_sys->pf_wndproc = NULL;
 382
 383     /* Get the Icon from the main app */
 384     vlc_icon = NULL;
 385 #ifndef UNDER_CE
 386     if( GetModuleFileName( NULL, vlc_path, MAX_PATH ) )
 387     {
 388         vlc_icon = ExtractIcon( hInstance, vlc_path, 0 );
 389     }
 390 #endif
 391
 392     /* Fill in the window class structure */
 393     wc.style         = CS_OWNDC|CS_DBLCLKS;          /* style: dbl click */
 394     wc.lpfnWndProc   = (WNDPROC)DirectXEventProc;       /* event handler */
 395     wc.cbClsExtra    = 0;                         /* no extra class data */
 396     wc.cbWndExtra    = 0;                        /* no extra window data */
 397     wc.hInstance     = hInstance;                            /* instance */
 398     wc.hIcon         = vlc_icon;                /* load the vlc big icon */
 399     wc.hCursor       = LoadCursor(NULL, IDC_ARROW);    /* default cursor */
 400     wc.hbrBackground = GetStockObject(BLACK_BRUSH);  /* background color */
 401     wc.lpszMenuName  = NULL;                                  /* no menu */
 402     wc.lpszClassName = _T("VLC DirectX");         /* use a special class */
 403
 404     /* Register the window class */
 405     if( !RegisterClass(&wc) )
 406     {
 407         WNDCLASS wndclass;
 408
 409         if( vlc_icon ) DestroyIcon( vlc_icon );
 410
 411         /* Check why it failed. If it's because one already exists
 412          * then fine, otherwise return with an error. */
 413         if( !GetClassInfo( hInstance, _T("VLC DirectX"), &wndclass ) )
 414         {
 415             msg_Err( p_vout, "DirectXCreateWindow RegisterClass FAILED" );
 416             return VLC_EGENERIC;
 417         }
 418     }
 419
 420     /* Register the video sub-window class */
 421     wc.lpszClassName = _T("VLC DirectX video"); wc.hIcon = 0;
 422     if( !RegisterClass(&wc) )
 423     {
 424         WNDCLASS wndclass;
 425
 426         /* Check why it failed. If it's because one already exists
 427          * then fine, otherwise return with an error. */
 428         if( !GetClassInfo( hInstance, _T("VLC DirectX video"), &wndclass ) )
 429         {
 430             msg_Err( p_vout, "DirectXCreateWindow RegisterClass FAILED" );
 431             return VLC_EGENERIC;
 432         }
 433     }
 434
 435     /* When you create a window you give the dimensions you wish it to
 436      * have. Unfortunatly these dimensions will include the borders and
 437      * titlebar. We use the following function to find out the size of
 438      * the window corresponding to the useable surface we want */
 439     rect_window.top    = 10;
 440     rect_window.left   = 10;
 441     rect_window.right  = rect_window.left + p_vout->p_sys->i_window_width;
 442     rect_window.bottom = rect_window.top + p_vout->p_sys->i_window_height;
 443
 444     if( var_GetBool( p_vout, "video-deco" ) )
 445     {
 446         /* Open with window decoration */
 447         AdjustWindowRect( &rect_window, WS_OVERLAPPEDWINDOW|WS_SIZEBOX, 0 );
 448         i_style = WS_OVERLAPPEDWINDOW|WS_SIZEBOX|WS_VISIBLE|WS_CLIPCHILDREN;
 449         i_stylex = 0;
 450     }
 451     else
 452     {
 453         /* No window decoration */
 454         AdjustWindowRect( &rect_window, WS_POPUP, 0 );
 455         i_style = WS_POPUP|WS_VISIBLE|WS_CLIPCHILDREN;
 456         i_stylex = 0; // WS_EX_TOOLWINDOW; Is TOOLWINDOW really needed ?
 457                       // It messes up the fullscreen window.
 458     }
 459
 460     if( p_vout->p_sys->hparent )
 461     {
 462         i_style = WS_VISIBLE|WS_CLIPCHILDREN|WS_CHILD;
 463         i_stylex = 0;
 464     }
 465
 466     p_vout->p_sys->i_window_style = i_style;
 467
 468     /* Create the window */
 469     p_vout->p_sys->hwnd =
 470         CreateWindowEx( WS_EX_NOPARENTNOTIFY | i_stylex,
 471                     _T("VLC DirectX"),               /* name of window class */
 472                     _T(VOUT_TITLE) _T(" (DirectX Output)"),  /* window title */
 473                     i_style,                                 /* window style */
 474                     (p_vout->p_sys->i_window_x < 0) ? CW_USEDEFAULT :
 475                         p_vout->p_sys->i_window_x,   /* default X coordinate */
 476                     (p_vout->p_sys->i_window_y < 0) ? CW_USEDEFAULT :
 477                         p_vout->p_sys->i_window_y,   /* default Y coordinate */
 478                     rect_window.right - rect_window.left,    /* window width */
 479                     rect_window.bottom - rect_window.top,   /* window height */
 480                     p_vout->p_sys->hparent,                 /* parent window */
 481                     NULL,                          /* no menu in this window */
 482                     hInstance,            /* handle of this program instance */
 483                     (LPVOID)p_vout );            /* send p_vout to WM_CREATE */
 484
 485     if( !p_vout->p_sys->hwnd )
 486     {
 487         msg_Warn( p_vout, "DirectXCreateWindow create window FAILED" );
 488         return VLC_EGENERIC;
 489     }
 490
 491     if( p_vout->p_sys->hparent )
 492     {
 493         LONG i_style;
 494
 495         /* We don't want the window owner to overwrite our client area */
 496         i_style = GetWindowLong( p_vout->p_sys->hparent, GWL_STYLE );
 497
 498         if( !(i_style & WS_CLIPCHILDREN) )
 499             /* Hmmm, apparently this is a blocking call... */
 500             SetWindowLong( p_vout->p_sys->hparent, GWL_STYLE,
 501                            i_style | WS_CLIPCHILDREN );
 502
 503         /* Create our fullscreen window */
 504         p_vout->p_sys->hfswnd =
 505             CreateWindowEx( WS_EX_APPWINDOW, _T("VLC DirectX"),
 506                             _T(VOUT_TITLE) _T(" (DirectX Output)"),
 507                             WS_OVERLAPPEDWINDOW|WS_CLIPCHILDREN|WS_SIZEBOX,
 508                             CW_USEDEFAULT, CW_USEDEFAULT,
 509                             CW_USEDEFAULT, CW_USEDEFAULT,
 510                             NULL, NULL, hInstance, NULL );
 511     }
 512
 513     /* Now display the window */
 514     ShowWindow( p_vout->p_sys->hwnd, SW_SHOW );
 515
 516     /* Create video sub-window. This sub window will always exactly match
 517      * the size of the video, which allows us to use crazy overlay colorkeys
 518      * without having them shown outside of the video area. */
 519     SendMessage( p_vout->p_sys->hwnd, WM_VLC_CREATE_VIDEO_WIN, 0, 0 );
 520
 521     /* Append a "Always On Top" entry in the system menu */
 522     hMenu = GetSystemMenu( p_vout->p_sys->hwnd, FALSE );
 523     AppendMenu( hMenu, MF_SEPARATOR, 0, _T("") );
 524     AppendMenu( hMenu, MF_STRING | MF_UNCHECKED,
 525                        IDM_TOGGLE_ON_TOP, _T("Always on &Top") );
 526
 527     return VLC_SUCCESS;
 528 }
 529
 530 /*****************************************************************************
 531  * DirectXCloseWindow: close the window created by DirectXCreateWindow
 532  *****************************************************************************
 533  * This function returns all resources allocated by DirectXCreateWindow.
 534  *****************************************************************************/
 535 static void DirectXCloseWindow( vout_thread_t *p_vout )
 536 {
 537     msg_Dbg( p_vout, "DirectXCloseWindow" );
 538
 539     DestroyWindow( p_vout->p_sys->hwnd );
 540     if( p_vout->p_sys->hfswnd ) DestroyWindow( p_vout->p_sys->hfswnd );
 541
 542     if( p_vout->p_sys->hparent )
 543         vout_ReleaseWindow( p_vout, (void *)p_vout->p_sys->hparent );
 544
 545     p_vout->p_sys->hwnd = NULL;
 546
 547     /* We don't unregister the Window Class because it could lead to race
 548      * conditions and it will be done anyway by the system when the app will
 549      * exit */
 550 }
 551
 552 /*****************************************************************************
 553  * DirectXUpdateRects: update clipping rectangles
 554  *****************************************************************************
 555  * This function is called when the window position or size are changed, and
 556  * its job is to update the source and destination RECTs used to display the
 557  * picture.
 558  *****************************************************************************/
 559 void E_(DirectXUpdateRects)( vout_thread_t *p_vout, vlc_bool_t b_force )
 560 {
 561 #define rect_src p_vout->p_sys->rect_src
 562 #define rect_src_clipped p_vout->p_sys->rect_src_clipped
 563 #define rect_dest p_vout->p_sys->rect_dest
 564 #define rect_dest_clipped p_vout->p_sys->rect_dest_clipped
 565
 566     int i_width, i_height, i_x, i_y;
 567
 568     RECT  rect;
 569     POINT point;
 570
 571     /* Retrieve the window size */
 572     GetClientRect( p_vout->p_sys->hwnd, &rect );
 573
 574     /* Retrieve the window position */
 575     point.x = point.y = 0;
 576     ClientToScreen( p_vout->p_sys->hwnd, &point );
 577
 578     /* If nothing changed, we can return */
 579     if( !b_force
 580          && p_vout->p_sys->i_window_width == rect.right
 581          && p_vout->p_sys->i_window_height == rect.bottom
 582          && p_vout->p_sys->i_window_x == point.x
 583          && p_vout->p_sys->i_window_y == point.y )
 584     {
 585         return;
 586     }
 587
 588     /* Update the window position and size */
 589     p_vout->p_sys->i_window_x = point.x;
 590     p_vout->p_sys->i_window_y = point.y;
 591     p_vout->p_sys->i_window_width = rect.right;
 592     p_vout->p_sys->i_window_height = rect.bottom;
 593
 594     vout_PlacePicture( p_vout, rect.right, rect.bottom,
 595                        &i_x, &i_y, &i_width, &i_height );
 596
 597     if( p_vout->p_sys->hvideownd )
 598         SetWindowPos( p_vout->p_sys->hvideownd, HWND_TOP,
 599                       i_x, i_y, i_width, i_height, 0 );
 600
 601     /* Destination image position and dimensions */
 602     rect_dest.left = point.x + i_x;
 603     rect_dest.right = rect_dest.left + i_width;
 604     rect_dest.top = point.y + i_y;
 605     rect_dest.bottom = rect_dest.top + i_height;
 606
 607     /* Apply overlay hardware constraints */
 608     if( p_vout->p_sys->b_using_overlay )
 609     {
 610         if( p_vout->p_sys->i_align_dest_boundary )
 611             rect_dest.left = ( rect_dest.left +
 612                 p_vout->p_sys->i_align_dest_boundary / 2 ) &
 613                 ~p_vout->p_sys->i_align_dest_boundary;
 614
 615         if( p_vout->p_sys->i_align_dest_size )
 616             rect_dest.right = (( rect_dest.right - rect_dest.left +
 617                 p_vout->p_sys->i_align_dest_size / 2 ) &
 618                 ~p_vout->p_sys->i_align_dest_size) + rect_dest.left;
 619     }
 620
 621     /* UpdateOverlay directdraw function doesn't automatically clip to the
 622      * display size so we need to do it otherwise it will fail */
 623
 624     /* Clip the destination window */
 625     if( !IntersectRect( &rect_dest_clipped, &rect_dest,
 626                         &p_vout->p_sys->rect_display ) )
 627     {
 628         SetRectEmpty( &rect_src_clipped );
 629         return;
 630     }
 631
 632 #if 0
 633     msg_Dbg( p_vout, "DirectXUpdateRects image_dst_clipped coords:"
 634                      " %i,%i,%i,%i",
 635                      rect_dest_clipped.left, rect_dest_clipped.top,
 636                      rect_dest_clipped.right, rect_dest_clipped.bottom );
 637 #endif
 638
 639     /* the 2 following lines are to fix a bug when clicking on the desktop */
 640     if( (rect_dest_clipped.right - rect_dest_clipped.left)==0 ||
 641         (rect_dest_clipped.bottom - rect_dest_clipped.top)==0 )
 642     {
 643         SetRectEmpty( &rect_src_clipped );
 644         return;
 645     }
 646
 647     /* src image dimensions */
 648     rect_src.left = 0;
 649     rect_src.top = 0;
 650     rect_src.right = p_vout->render.i_width;
 651     rect_src.bottom = p_vout->render.i_height;
 652
 653     /* Clip the source image */
 654     rect_src_clipped.left = p_vout->fmt_out.i_x_offset +
 655       (rect_dest_clipped.left - rect_dest.left) *
 656       p_vout->fmt_out.i_visible_width / (rect_dest.right - rect_dest.left);
 657     rect_src_clipped.right = p_vout->fmt_out.i_x_offset +
 658       p_vout->fmt_out.i_visible_width -
 659       (rect_dest.right - rect_dest_clipped.right) *
 660       p_vout->fmt_out.i_visible_width / (rect_dest.right - rect_dest.left);
 661     rect_src_clipped.top = p_vout->fmt_out.i_y_offset +
 662       (rect_dest_clipped.top - rect_dest.top) *
 663       p_vout->fmt_out.i_visible_height / (rect_dest.bottom - rect_dest.top);
 664     rect_src_clipped.bottom = p_vout->fmt_out.i_y_offset +
 665       p_vout->fmt_out.i_visible_height -
 666       (rect_dest.bottom - rect_dest_clipped.bottom) *
 667       p_vout->fmt_out.i_visible_height / (rect_dest.bottom - rect_dest.top);
 668
 669     /* Apply overlay hardware constraints */
 670     if( p_vout->p_sys->b_using_overlay )
 671     {
 672         if( p_vout->p_sys->i_align_src_boundary )
 673             rect_src_clipped.left = ( rect_src_clipped.left +
 674                 p_vout->p_sys->i_align_src_boundary / 2 ) &
 675                 ~p_vout->p_sys->i_align_src_boundary;
 676
 677         if( p_vout->p_sys->i_align_src_size )
 678             rect_src_clipped.right = (( rect_src_clipped.right -
 679                 rect_src_clipped.left +
 680                 p_vout->p_sys->i_align_src_size / 2 ) &
 681                 ~p_vout->p_sys->i_align_src_size) + rect_src_clipped.left;
 682     }
 683
 684 #if 0
 685     msg_Dbg( p_vout, "DirectXUpdateRects image_src_clipped"
 686                      " coords: %i,%i,%i,%i",
 687                      rect_src_clipped.left, rect_src_clipped.top,
 688                      rect_src_clipped.right, rect_src_clipped.bottom );
 689 #endif
 690
 691     /* The destination coordinates need to be relative to the current
 692      * directdraw primary surface (display) */
 693     rect_dest_clipped.left -= p_vout->p_sys->rect_display.left;
 694     rect_dest_clipped.right -= p_vout->p_sys->rect_display.left;
 695     rect_dest_clipped.top -= p_vout->p_sys->rect_display.top;
 696     rect_dest_clipped.bottom -= p_vout->p_sys->rect_display.top;
 697
 698     if( p_vout->p_sys->b_using_overlay )
 699         E_(DirectXUpdateOverlay)( p_vout );
 700
 701     /* Signal the change in size/position */
 702     p_vout->p_sys->i_changes |= DX_POSITION_CHANGE;
 703
 704 #undef rect_src
 705 #undef rect_src_clipped
 706 #undef rect_dest
 707 #undef rect_dest_clipped
 708 }
 709
 710 /*****************************************************************************
 711  * DirectXEventProc: This is the window event processing function.
 712  *****************************************************************************
 713  * On Windows, when you create a window you have to attach an event processing
 714  * function to it. The aim of this function is to manage "Queued Messages" and
 715  * "Nonqueued Messages".
 716  * Queued Messages are those picked up and retransmitted by vout_Manage
 717  * (using the GetMessage and DispatchMessage functions).
 718  * Nonqueued Messages are those that Windows will send directly to this
 719  * procedure (like WM_DESTROY, WM_WINDOWPOSCHANGED...)
 720  *****************************************************************************/
 721 static long FAR PASCAL DirectXEventProc( HWND hwnd, UINT message,
 722                                          WPARAM wParam, LPARAM lParam )
 723 {
 724     vout_thread_t *p_vout;
 725
 726     if( message == WM_CREATE )
 727     {
 728         /* Store p_vout for future use */
 729         p_vout = (vout_thread_t *)((CREATESTRUCT *)lParam)->lpCreateParams;
 730         SetWindowLongPtr( hwnd, GWLP_USERDATA, (LONG_PTR)p_vout );
 731     }
 732     else
 733     {
 734         p_vout = (vout_thread_t *)GetWindowLongPtr( hwnd, GWLP_USERDATA );
 735     }
 736
 737     /* Catch the screensaver and the monitor turn-off */
 738     if( message == WM_SYSCOMMAND &&
 739         ( wParam == SC_SCREENSAVE || wParam == SC_MONITORPOWER ) )
 740     {
 741         //if( p_vout ) msg_Dbg( p_vout, "WinProc WM_SYSCOMMAND screensaver" );
 742         return 0; /* this stops them from happening */
 743     }
 744
 745     if( !p_vout )
 746     {
 747         /* Hmmm mozilla does manage somehow to save the pointer to our
 748          * windowproc and still calls it after the vout has been closed. */
 749         return DefWindowProc(hwnd, message, wParam, lParam);
 750     }
 751
 752     if( hwnd == p_vout->p_sys->hvideownd )
 753         return DefWindowProc(hwnd, message, wParam, lParam);
 754
 755     switch( message )
 756     {
 757
 758     case WM_WINDOWPOSCHANGED:
 759         E_(DirectXUpdateRects)( p_vout, VLC_TRUE );
 760         return 0;
 761
 762     /* the user wants to close the window */
 763     case WM_CLOSE:
 764     {
 765         playlist_t * p_playlist =
 766             (playlist_t *)vlc_object_find( p_vout, VLC_OBJECT_PLAYLIST,
 767                                            FIND_ANYWHERE );
 768         if( p_playlist == NULL )
 769         {
 770             return 0;
 771         }
 772
 773         playlist_Stop( p_playlist );
 774         vlc_object_release( p_playlist );
 775         return 0;
 776     }
 777
 778     /* the window has been closed so shut down everything now */
 779     case WM_DESTROY:
 780         msg_Dbg( p_vout, "WinProc WM_DESTROY" );
 781         /* just destroy the window */
 782         PostQuitMessage( 0 );
 783         return 0;
 784
 785     case WM_SYSCOMMAND:
 786         switch (wParam)
 787         {
 788             case IDM_TOGGLE_ON_TOP:            /* toggle the "on top" status */
 789             {
 790                 vlc_value_t val;
 791                 msg_Dbg( p_vout, "WinProc WM_SYSCOMMAND: IDM_TOGGLE_ON_TOP");
 792
 793                 /* Change the current value */
 794                 var_Get( p_vout, "video-on-top", &val );
 795                 val.b_bool = !val.b_bool;
 796                 var_Set( p_vout, "video-on-top", val );
 797                 return 0;
 798             }
 799         }
 800         break;
 801
 802     case WM_VLC_CREATE_VIDEO_WIN:
 803         /* Create video sub-window */
 804         p_vout->p_sys->hvideownd =
 805             CreateWindow( _T("VLC DirectX video"), _T(""),   /* window class */
 806                     WS_CHILD | WS_VISIBLE,                   /* window style */
 807                     CW_USEDEFAULT, CW_USEDEFAULT,     /* default coordinates */
 808                     CW_USEDEFAULT, CW_USEDEFAULT,
 809                     hwnd,                                   /* parent window */
 810                     NULL, GetModuleHandle(NULL),
 811                     (LPVOID)p_vout );            /* send p_vout to WM_CREATE */
 812
 813         if( !p_vout->p_sys->hvideownd )
 814             msg_Warn( p_vout, "Can't create video sub-window" );
 815         else
 816             msg_Dbg( p_vout, "Created video sub-window" );
 817         break;
 818
 819     case WM_PAINT:
 820     case WM_NCPAINT:
 821     case WM_ERASEBKGND:
 822         /* We do not want to relay these messages to the parent window
 823          * because we rely on the background color for the overlay. */
 824         return DefWindowProc(hwnd, message, wParam, lParam);
 825         break;
 826
 827     default:
 828         //msg_Dbg( p_vout, "WinProc WM Default %i", message );
 829         break;
 830     }
 831
 832     /* Let windows handle the message */
 833     return DefWindowProc(hwnd, message, wParam, lParam);
 834 }
 835
 836 static struct
 837 {
 838     int i_dxkey;
 839     int i_vlckey;
 840
 841 } dxkeys_to_vlckeys[] =
 842 {
 843     { VK_F1, KEY_F1 }, { VK_F2, KEY_F2 }, { VK_F3, KEY_F3 }, { VK_F4, KEY_F4 },
 844     { VK_F5, KEY_F5 }, { VK_F6, KEY_F6 }, { VK_F7, KEY_F7 }, { VK_F8, KEY_F8 },
 845     { VK_F9, KEY_F9 }, { VK_F10, KEY_F10 }, { VK_F11, KEY_F11 },
 846     { VK_F12, KEY_F12 },
 847
 848     { VK_RETURN, KEY_ENTER },
 849     { VK_SPACE, KEY_SPACE },
 850     { VK_ESCAPE, KEY_ESC },
 851
 852     { VK_LEFT, KEY_LEFT },
 853     { VK_RIGHT, KEY_RIGHT },
 854     { VK_UP, KEY_UP },
 855     { VK_DOWN, KEY_DOWN },
 856
 857     { VK_HOME, KEY_HOME },
 858     { VK_END, KEY_END },
 859     { VK_PRIOR, KEY_PAGEUP },
 860     { VK_NEXT, KEY_PAGEDOWN },
 861
 862     { VK_INSERT, KEY_INSERT },
 863     { VK_DELETE, KEY_DELETE },
 864
 865     { VK_CONTROL, 0 },
 866     { VK_SHIFT, 0 },
 867     { VK_MENU, 0 },
 868
 869     { 0, 0 }
 870 };
 871
 872 static int DirectXConvertKey( int i_key )
 873 {
 874     int i;
 875
 876     for( i = 0; dxkeys_to_vlckeys[i].i_dxkey != 0; i++ )
 877     {
 878         if( dxkeys_to_vlckeys[i].i_dxkey == i_key )
 879         {
 880             return dxkeys_to_vlckeys[i].i_vlckey;
 881         }
 882     }
 883
 884     return 0;
 885 }
 886
 887 /*****************************************************************************
 888  * Control: control facility for the vout
 889  *****************************************************************************/
 890 static int Control( vout_thread_t *p_vout, int i_query, va_list args )
 891 {
 892     double f_arg;
 893     RECT rect_window;
 894     POINT point;
 895
 896     switch( i_query )
 897     {
 898     case VOUT_SET_ZOOM:
 899         if( p_vout->p_sys->hparent )
 900             return vout_ControlWindow( p_vout,
 901                     (void *)p_vout->p_sys->hparent, i_query, args );
 902
 903         f_arg = va_arg( args, double );
 904
 905         /* Update dimensions */
 906         rect_window.top = rect_window.left = 0;
 907         rect_window.right  = p_vout->i_window_width * f_arg;
 908         rect_window.bottom = p_vout->i_window_height * f_arg;
 909         AdjustWindowRect( &rect_window, p_vout->p_sys->i_window_style, 0 );
 910
 911         SetWindowPos( p_vout->p_sys->hwnd, 0, 0, 0,
 912                       rect_window.right - rect_window.left,
 913                       rect_window.bottom - rect_window.top, SWP_NOMOVE );
 914
 915         return VLC_SUCCESS;
 916
 917     case VOUT_CLOSE:
 918         ShowWindow( p_vout->p_sys->hwnd, SW_HIDE );
 919     case VOUT_REPARENT:
 920         /* Change window style, borders and title bar */
 921         vlc_mutex_lock( &p_vout->p_sys->lock );
 922         p_vout->p_sys->hparent = 0;
 923         vlc_mutex_unlock( &p_vout->p_sys->lock );
 924
 925         /* Retrieve the window position */
 926         point.x = point.y = 0;
 927         ClientToScreen( p_vout->p_sys->hwnd, &point );
 928
 929         SetParent( p_vout->p_sys->hwnd, 0 );
 930         p_vout->p_sys->i_window_style =
 931             WS_CLIPCHILDREN | WS_OVERLAPPEDWINDOW | WS_SIZEBOX;
 932         SetWindowLong( p_vout->p_sys->hwnd, GWL_STYLE,
 933                        p_vout->p_sys->i_window_style |
 934                        (i_query == VOUT_CLOSE ? 0 : WS_VISIBLE) );
 935         SetWindowLong( p_vout->p_sys->hwnd, GWL_EXSTYLE, WS_EX_APPWINDOW );
 936         SetWindowPos( p_vout->p_sys->hwnd, 0, point.x, point.y, 0, 0,
 937                       SWP_NOSIZE|SWP_NOZORDER|SWP_FRAMECHANGED );
 938
 939         return vout_vaControlDefault( p_vout, i_query, args );
 940
 941     case VOUT_SET_STAY_ON_TOP:
 942         if( p_vout->p_sys->hparent )
 943             return vout_ControlWindow( p_vout,
 944                     (void *)p_vout->p_sys->hparent, i_query, args );
 945
 946         p_vout->p_sys->b_on_top_change = VLC_TRUE;
 947         return VLC_SUCCESS;
 948
 949     default:
 950         return vout_vaControlDefault( p_vout, i_query, args );
 951     }
 952 }