24985ddcaf5d8ee67488f9096a091404d8d0f9c4
[vlc.git] / modules / video_output / directx / events.c
1 /*****************************************************************************
2  * events.c: Windows DirectX video output events handler
3  *****************************************************************************
4  * Copyright (C) 2001 VideoLAN
5  * $Id: events.c,v 1.20 2003/07/29 21:14:10 gbazin Exp $
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 <string.h>                                            /* strerror() */
32
33 #include <vlc/vlc.h>
34 #include <vlc/intf.h>
35 #include <vlc/input.h>
36 #include <vlc/vout.h>
37
38 #include <windows.h>
39 #include <windowsx.h>
40 #include <shellapi.h>
41
42 #include <ddraw.h>
43
44 #include "vout.h"
45
46 /*****************************************************************************
47  * Local prototypes.
48  *****************************************************************************/
49 static int  DirectXCreateWindow( vout_thread_t *p_vout );
50 static void DirectXCloseWindow ( vout_thread_t *p_vout );
51 static long FAR PASCAL DirectXEventProc ( HWND hwnd, UINT message,
52                                           WPARAM wParam, LPARAM lParam );
53
54 /*****************************************************************************
55  * DirectXEventThread: Create video window & handle its messages
56  *****************************************************************************
57  * This function creates a video window and then enters an infinite loop
58  * that handles the messages sent to that window.
59  * The main goal of this thread is to isolate the Win32 PeekMessage function
60  * because this one can block for a long time.
61  *****************************************************************************/
62 void DirectXEventThread( event_thread_t *p_event )
63 {
64     MSG msg;
65     POINT old_mouse_pos = {0,0};
66     vlc_value_t val;
67     int i_width, i_height, i_x, i_y;
68
69     /* Initialisation */
70
71     /* Create a window for the video */
72     /* Creating a window under Windows also initializes the thread's event
73      * message queue */
74     if( DirectXCreateWindow( p_event->p_vout ) )
75     {
76         msg_Err( p_event, "out of memory" );
77         p_event->b_dead = VLC_TRUE;
78     }
79
80     /* signal the creation of the window */
81     vlc_thread_ready( p_event );
82
83     /* Main loop */
84     /* GetMessage will sleep if there's no message in the queue */
85     while( !p_event->b_die
86            && GetMessage( &msg, p_event->p_vout->p_sys->hwnd, 0, 0 ) )
87     {
88         /* Check if we are asked to exit */
89         if( p_event->b_die )
90             break;
91
92         switch( msg.message )
93         {
94
95         case WM_NCMOUSEMOVE:
96         case WM_MOUSEMOVE:
97             vout_PlacePicture( p_event->p_vout,
98                                p_event->p_vout->p_sys->i_window_width,
99                                p_event->p_vout->p_sys->i_window_height,
100                                &i_x, &i_y, &i_width, &i_height );
101
102             val.i_int = ( GET_X_LPARAM(msg.lParam) - i_x )
103                          * p_event->p_vout->render.i_width / i_width;
104             var_Set( p_event->p_vout, "mouse-x", val );
105             val.i_int = ( GET_Y_LPARAM(msg.lParam) - i_y )
106                          * p_event->p_vout->render.i_height / i_height;
107             var_Set( p_event->p_vout, "mouse-y", val );
108
109             val.b_bool = VLC_TRUE;
110             var_Set( p_event->p_vout, "mouse-moved", val );
111
112             if( (abs(GET_X_LPARAM(msg.lParam) - old_mouse_pos.x) > 2 ||
113                 (abs(GET_Y_LPARAM(msg.lParam) - old_mouse_pos.y)) > 2 ) )
114             {
115                 GetCursorPos( &old_mouse_pos );
116                 p_event->p_vout->p_sys->i_lastmoved = mdate();
117
118                 if( p_event->p_vout->p_sys->b_cursor_hidden )
119                 {
120                     p_event->p_vout->p_sys->b_cursor_hidden = 0;
121                     ShowCursor( TRUE );
122                 }
123             }
124             break;
125
126         case WM_VLC_HIDE_MOUSE:
127             GetCursorPos( &old_mouse_pos );
128             ShowCursor( FALSE );
129             break;
130
131         case WM_LBUTTONDOWN:
132             var_Get( p_event->p_vout, "mouse-button-down", &val );
133             val.i_int |= 1;
134             var_Set( p_event->p_vout, "mouse-button-down", val );
135             break;
136
137         case WM_LBUTTONUP:
138             var_Get( p_event->p_vout, "mouse-button-down", &val );
139             val.i_int &= ~1;
140             var_Set( p_event->p_vout, "mouse-button-down", val );
141
142             val.b_bool = VLC_TRUE;
143             var_Set( p_event->p_vout, "mouse-clicked", val );
144             break;
145
146         case WM_LBUTTONDBLCLK:
147             p_event->p_vout->p_sys->i_changes |= VOUT_FULLSCREEN_CHANGE;
148             break;
149
150         case WM_MBUTTONDOWN:
151             var_Get( p_event->p_vout, "mouse-button-down", &val );
152             val.i_int |= 2;
153             var_Set( p_event->p_vout, "mouse-button-down", val );
154             break;
155
156         case WM_MBUTTONUP:
157             var_Get( p_event->p_vout, "mouse-button-down", &val );
158             val.i_int &= ~2;
159             var_Set( p_event->p_vout, "mouse-button-down", val );
160             break;
161
162         case WM_RBUTTONDOWN:
163             var_Get( p_event->p_vout, "mouse-button-down", &val );
164             val.i_int |= 4;
165             var_Set( p_event->p_vout, "mouse-button-down", val );
166             break;
167
168         case WM_RBUTTONUP:
169             var_Get( p_event->p_vout, "mouse-button-down", &val );
170             val.i_int &= ~4;
171             var_Set( p_event->p_vout, "mouse-button-down", val );
172             {
173                 playlist_t *p_playlist =
174                     vlc_object_find( p_event, VLC_OBJECT_PLAYLIST,
175                                      FIND_ANYWHERE );
176                 if( p_playlist != NULL )
177                 {
178                     vlc_value_t val;
179                     val.b_bool = VLC_TRUE; /* make compiler happy */
180                     var_Set( p_playlist, "intf-popupmenu", val );
181                     vlc_object_release( p_playlist );
182                 }
183             }
184             break;
185
186         case WM_KEYDOWN:
187             /* the key events are first processed here. The next
188              * message processed by this main message loop will be the
189              * char translation of the key event */
190             msg_Dbg( p_event, "WM_KEYDOWN" );
191             switch( msg.wParam )
192             {
193             case VK_ESCAPE:
194                 if( p_event->p_vout->b_fullscreen )
195                 {
196                     p_event->p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
197                 }
198                 else
199                 {
200                     /* close video window */
201                     PostMessage( msg.hwnd, WM_CLOSE, 0, 0 );
202                 }
203                 break;
204
205             case VK_MENU:
206                 {
207                     playlist_t *p_playlist =
208                         vlc_object_find( p_event, VLC_OBJECT_PLAYLIST,
209                                          FIND_ANYWHERE );
210                     if( p_playlist != NULL )
211                     {
212                         vlc_value_t val;
213                         var_Set( p_playlist, "intf-popupmenu", val );
214                         vlc_object_release( p_playlist );
215                     }
216                 }
217                 break;
218
219             case VK_LEFT:
220                 /* input_Seek( p_event->p_vout, -5,
221                    INPUT_SEEK_SECONDS | INPUT_SEEK_CUR ); */
222                 val.psz_string = "LEFT";
223                 var_Set( p_vout, "key-pressed", val );
224                 break;
225             case VK_RIGHT:
226                 /* input_Seek( p_event->p_vout, 5,
227                    INPUT_SEEK_SECONDS | INPUT_SEEK_CUR ); */
228                 val.psz_string = "RIGHT";
229                 var_Set( p_vout, "key-pressed", val );
230                 break;
231             case VK_UP:
232                 /* input_Seek( p_event->p_vout, 60,
233                    INPUT_SEEK_SECONDS | INPUT_SEEK_CUR ); */
234                 val.psz_string = "UP";
235                 var_Set( p_vout, "key-pressed", val );
236                 break;
237             case VK_DOWN:
238                 /* input_Seek( p_event->p_vout, -60,
239                    INPUT_SEEK_SECONDS | INPUT_SEEK_CUR ); */
240                 val.psz_string = "DOWN";
241                 var_Set( p_vout, "key-pressed", val );
242                 break;
243             case VK_RETURN:
244                 val.psz_string = "ENTER";
245                 var_Set( p_vout, "key-pressed", val );
246                 break;
247             case VK_HOME:
248                 input_Seek( p_event->p_vout, 0,
249                             INPUT_SEEK_BYTES | INPUT_SEEK_SET );
250                 break;
251             case VK_END:
252                 input_Seek( p_event->p_vout, 0,
253                             INPUT_SEEK_BYTES | INPUT_SEEK_END );
254                 break;
255             case VK_PRIOR:
256                 input_Seek( p_event->p_vout, 10,
257                             INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
258                 break;
259             case VK_NEXT:
260                 input_Seek( p_event->p_vout, -10,
261                             INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
262                 break;
263             case VK_SPACE:
264                 input_SetStatus( p_event->p_vout, INPUT_STATUS_PAUSE );
265                 break;
266             }
267             TranslateMessage(&msg);
268             break;
269
270         case WM_CHAR:
271             switch( msg.wParam )
272             {
273             case 'q':
274             case 'Q':
275                 /* exit application */
276                 p_event->p_vlc->b_die = VLC_TRUE;
277                 break;
278
279             case 'f':                            /* switch to fullscreen */
280             case 'F':
281                 p_event->p_vout->p_sys->i_changes |= VOUT_FULLSCREEN_CHANGE;
282                 break;
283
284             default:
285                 break;
286             }
287
288         default:
289             /* Messages we don't handle directly are dispatched to the
290              * window procedure */
291             TranslateMessage(&msg);
292             DispatchMessage(&msg);
293             break;
294
295         } /* End Switch */
296
297     } /* End Main loop */
298
299     if( msg.message == WM_QUIT )
300     {
301         msg_Warn( p_event, "WM_QUIT... should not happen!!" );
302         p_event->p_vout->p_sys->hwnd = NULL; /* Window already destroyed */
303     }
304
305     msg_Dbg( p_event, "DirectXEventThread terminating" );
306
307     /* clear the changes formerly signaled */
308     p_event->p_vout->p_sys->i_changes = 0;
309
310     DirectXCloseWindow( p_event->p_vout );
311 }
312
313
314 /* following functions are local */
315
316 /*****************************************************************************
317  * DirectXCreateWindow: create a window for the video.
318  *****************************************************************************
319  * Before creating a direct draw surface, we need to create a window in which
320  * the video will be displayed. This window will also allow us to capture the
321  * events.
322  *****************************************************************************/
323 static int DirectXCreateWindow( vout_thread_t *p_vout )
324 {
325     HINSTANCE  hInstance;
326     COLORREF   colorkey;
327     HDC        hdc;
328     HMENU      hMenu;
329     RECT       rect_window;
330
331     vlc_value_t val;
332
333     msg_Dbg( p_vout, "DirectXCreateWindow" );
334
335     /* Get this module's instance */
336     hInstance = GetModuleHandle(NULL);
337
338     /* Create a BRUSH that will be used by Windows to paint the window
339      * background.
340      * This window background is important for us as it will be used by the
341      * graphics card to display the overlay.
342      * This is why we carefully choose the color for this background, the goal
343      * being to choose a color which isn't complete black but nearly. We
344      * obviously don't want to use black as a colorkey for the overlay because
345      * black is one of the most used color and thus would give us undesirable
346      * effects */
347     /* the first step is to find the colorkey we want to use. The difficulty
348      * comes from the potential dithering (depends on the display depth)
349      * because we need to know the real RGB value of the chosen colorkey */
350     hdc = GetDC( NULL );
351     for( colorkey = 0x0a; colorkey < 0xff /* all shades of red */; colorkey++ )
352     {
353         if( colorkey == GetNearestColor( hdc, colorkey ) )
354         {
355             break;
356         }
357     }
358     msg_Dbg( p_vout, "background color: %i", colorkey );
359
360     /* Create the actual brush */
361     p_vout->p_sys->hbrush = CreateSolidBrush(colorkey);
362     p_vout->p_sys->i_rgb_colorkey = (int)colorkey;
363
364     /* Get the current size of the display and its colour depth */
365     p_vout->p_sys->rect_display.right = GetDeviceCaps( hdc, HORZRES );
366     p_vout->p_sys->rect_display.bottom = GetDeviceCaps( hdc, VERTRES );
367     p_vout->p_sys->i_display_depth = GetDeviceCaps( hdc, BITSPIXEL );
368     msg_Dbg( p_vout, "screen dimensions %ix%i colour depth %i",
369                       p_vout->p_sys->rect_display.right,
370                       p_vout->p_sys->rect_display.bottom,
371                       p_vout->p_sys->i_display_depth );
372
373     ReleaseDC( NULL, hdc );
374
375     /* If an external window was specified, we'll draw in it. */
376     var_Get( p_vout->p_vlc, "drawable", &val );
377     p_vout->p_sys->hparent = p_vout->p_sys->hwnd =
378              val.i_int ?  (void*)(ptrdiff_t) val.i_int : NULL;
379
380     if( p_vout->p_sys->hparent )
381     {
382         msg_Dbg( p_vout, "using external window %p\n", p_vout->p_sys->hwnd );
383
384         /* Set stuff in the window that we can not put directly in
385          * a class (see below). */
386         SetClassLong( p_vout->p_sys->hwnd,
387                       GCL_STYLE, CS_DBLCLKS );
388         SetClassLong( p_vout->p_sys->hwnd,
389                       GCL_HBRBACKGROUND, (LONG)p_vout->p_sys->hbrush );
390         SetClassLong( p_vout->p_sys->hwnd,
391                       GCL_HCURSOR, (LONG)LoadCursor(NULL, IDC_ARROW) );
392         /* Store a p_vout pointer into the window local storage (for later
393          * use in DirectXEventProc). */
394         SetWindowLong( p_vout->p_sys->hwnd, GWL_USERDATA, (LONG)p_vout );
395
396         p_vout->p_sys->pf_wndproc =
397                (WNDPROC)SetWindowLong( p_vout->p_sys->hwnd,
398                                        GWL_WNDPROC, (LONG)DirectXEventProc );
399
400         /* Blam! Erase everything that might have been there. */
401         RedrawWindow( p_vout->p_sys->hwnd, NULL, NULL,
402                       RDW_INVALIDATE | RDW_ERASE );
403     }
404     else
405     {
406         WNDCLASSEX wc;                            /* window class components */
407         HICON      vlc_icon = NULL;
408         char       vlc_path[MAX_PATH+1];
409
410         /* Get the Icon from the main app */
411         vlc_icon = NULL;
412         if( GetModuleFileName( NULL, vlc_path, MAX_PATH ) )
413         {
414             vlc_icon = ExtractIcon( hInstance, vlc_path, 0 );
415         }
416
417         /* Fill in the window class structure */
418         wc.cbSize        = sizeof(WNDCLASSEX);
419         wc.style         = CS_DBLCLKS;                   /* style: dbl click */
420         wc.lpfnWndProc   = (WNDPROC)DirectXEventProc;       /* event handler */
421         wc.cbClsExtra    = 0;                         /* no extra class data */
422         wc.cbWndExtra    = 0;                        /* no extra window data */
423         wc.hInstance     = hInstance;                            /* instance */
424         wc.hIcon         = vlc_icon;                /* load the vlc big icon */
425         wc.hCursor       = LoadCursor(NULL, IDC_ARROW);    /* default cursor */
426         wc.hbrBackground = p_vout->p_sys->hbrush;        /* background color */
427         wc.lpszMenuName  = NULL;                                  /* no menu */
428         wc.lpszClassName = "VLC DirectX";             /* use a special class */
429         wc.hIconSm       = vlc_icon;              /* load the vlc small icon */
430
431         /* Register the window class */
432         if( !RegisterClassEx(&wc) )
433         {
434             WNDCLASS wndclass;
435
436             /* Free window background brush */
437             if( p_vout->p_sys->hbrush )
438             {
439                 DeleteObject( p_vout->p_sys->hbrush );
440                 p_vout->p_sys->hbrush = NULL;
441             }
442
443             if( vlc_icon )
444             {
445                 DestroyIcon( vlc_icon );
446             }
447
448             /* Check why it failed. If it's because one already exists
449              * then fine, otherwise return with an error. */
450             if( !GetClassInfo( hInstance, "VLC DirectX", &wndclass ) )
451             {
452                 msg_Err( p_vout, "DirectXCreateWindow RegisterClass FAILED" );
453                 return VLC_EGENERIC;
454             }
455         }
456
457         /* When you create a window you give the dimensions you wish it to
458          * have. Unfortunatly these dimensions will include the borders and
459          * titlebar. We use the following function to find out the size of
460          * the window corresponding to the useable surface we want */
461         rect_window.top    = 10;
462         rect_window.left   = 10;
463         rect_window.right  = rect_window.left + p_vout->p_sys->i_window_width;
464         rect_window.bottom = rect_window.top + p_vout->p_sys->i_window_height;
465         AdjustWindowRect( &rect_window, WS_OVERLAPPEDWINDOW|WS_SIZEBOX, 0 );
466
467         /* Create the window */
468         p_vout->p_sys->hwnd =
469             CreateWindow( "VLC DirectX",             /* name of window class */
470                     VOUT_TITLE " (DirectX Output)", /* window title bar text */
471                     WS_OVERLAPPEDWINDOW | WS_SIZEBOX,        /* window style */
472                     CW_USEDEFAULT,                   /* default X coordinate */
473                     0,                               /* default Y coordinate */
474                     rect_window.right - rect_window.left,    /* window width */
475                     rect_window.bottom - rect_window.top,   /* window height */
476                     NULL,                                /* no parent window */
477                     NULL,                          /* no menu in this window */
478                     hInstance,            /* handle of this program instance */
479                     (LPVOID)p_vout );            /* send p_vout to WM_CREATE */
480
481         if( !p_vout->p_sys->hwnd )
482         {
483             msg_Warn( p_vout, "DirectXCreateWindow create window FAILED" );
484             return VLC_EGENERIC;
485         }
486     }
487
488     /* Append a "Always On Top" entry in the system menu */
489     hMenu = GetSystemMenu( p_vout->p_sys->hwnd, FALSE );
490     AppendMenu( hMenu, MF_SEPARATOR, 0, "" );
491     AppendMenu( hMenu, MF_STRING | MF_UNCHECKED,
492                        IDM_TOGGLE_ON_TOP, "Always on &Top" );
493
494     /* Now display the window */
495     ShowWindow( p_vout->p_sys->hwnd, SW_SHOW );
496
497     return VLC_SUCCESS;
498 }
499
500 /*****************************************************************************
501  * DirectXCloseWindow: close the window created by DirectXCreateWindow
502  *****************************************************************************
503  * This function returns all resources allocated by DirectXCreateWindow.
504  *****************************************************************************/
505 static void DirectXCloseWindow( vout_thread_t *p_vout )
506 {
507     msg_Dbg( p_vout, "DirectXCloseWindow" );
508
509     if( p_vout->p_sys->hwnd && !p_vout->p_sys->hparent )
510     {
511         DestroyWindow( p_vout->p_sys->hwnd );
512     }
513
514     p_vout->p_sys->hwnd = NULL;
515
516     /* We don't unregister the Window Class because it could lead to race
517      * conditions and it will be done anyway by the system when the app will
518      * exit */
519 }
520
521 /*****************************************************************************
522  * DirectXUpdateRects: update clipping rectangles
523  *****************************************************************************
524  * This function is called when the window position or size are changed, and
525  * its job is to update the source and destination RECTs used to display the
526  * picture.
527  *****************************************************************************/
528 void DirectXUpdateRects( vout_thread_t *p_vout, vlc_bool_t b_force )
529 {
530 #define rect_src p_vout->p_sys->rect_src
531 #define rect_src_clipped p_vout->p_sys->rect_src_clipped
532 #define rect_dest p_vout->p_sys->rect_dest
533 #define rect_dest_clipped p_vout->p_sys->rect_dest_clipped
534
535     int i_width, i_height, i_x, i_y;
536
537     RECT  rect;
538     POINT point;
539
540     /* Retrieve the window size */
541     GetClientRect( p_vout->p_sys->hwnd, &rect );
542
543     /* Retrieve the window position */
544     point.x = point.y = 0;
545     ClientToScreen( p_vout->p_sys->hwnd, &point );
546
547     /* If nothing changed, we can return */
548     if( !b_force
549          && p_vout->p_sys->i_window_width == rect.right
550          && p_vout->p_sys->i_window_height == rect.bottom
551          && p_vout->p_sys->i_window_x == point.x
552          && p_vout->p_sys->i_window_y == point.y )
553     {
554         return;
555     }
556
557     /* Update the window position and size */
558     p_vout->p_sys->i_window_x = point.x;
559     p_vout->p_sys->i_window_y = point.y;
560     p_vout->p_sys->i_window_width = rect.right;
561     p_vout->p_sys->i_window_height = rect.bottom;
562
563     vout_PlacePicture( p_vout, rect.right, rect.bottom,
564                        &i_x, &i_y, &i_width, &i_height );
565
566     /* Destination image position and dimensions */
567     rect_dest.left = point.x + i_x;
568     rect_dest.right = rect_dest.left + i_width;
569     rect_dest.top = point.y + i_y;
570     rect_dest.bottom = rect_dest.top + i_height;
571
572
573     /* UpdateOverlay directdraw function doesn't automatically clip to the
574      * display size so we need to do it otherwise it will fail */
575
576     /* Clip the destination window */
577     IntersectRect( &rect_dest_clipped,
578                    &rect_dest,
579                    &p_vout->p_sys->rect_display );
580
581 #if 0
582     msg_Dbg( p_vout, "DirectXUpdateRects image_dst_clipped coords:"
583                      " %i,%i,%i,%i",
584                      rect_dest_clipped.left, rect_dest_clipped.top,
585                      rect_dest_clipped.right, rect_dest_clipped.bottom );
586 #endif
587
588     /* the 2 following lines are to fix a bug when clicking on the desktop */
589     if( (rect_dest_clipped.right - rect_dest_clipped.left)==0 ||
590         (rect_dest_clipped.bottom - rect_dest_clipped.top)==0 )
591     {
592         SetRectEmpty( &rect_src_clipped );
593         return;
594     }
595
596     /* src image dimensions */
597     rect_src.left = 0;
598     rect_src.top = 0;
599     rect_src.right = p_vout->render.i_width;
600     rect_src.bottom = p_vout->render.i_height;
601
602     /* Clip the source image */
603     rect_src_clipped.left = (rect_dest_clipped.left - rect_dest.left) *
604       p_vout->render.i_width / (rect_dest.right - rect_dest.left);
605     rect_src_clipped.right = p_vout->render.i_width -
606       (rect_dest.right - rect_dest_clipped.right) * p_vout->render.i_width /
607       (rect_dest.right - rect_dest.left);
608     rect_src_clipped.top = (rect_dest_clipped.top - rect_dest.top) *
609       p_vout->render.i_height / (rect_dest.bottom - rect_dest.top);
610     rect_src_clipped.bottom = p_vout->render.i_height -
611       (rect_dest.bottom - rect_dest_clipped.bottom) * p_vout->render.i_height /
612       (rect_dest.bottom - rect_dest.top);
613
614 #if 0
615     msg_Dbg( p_vout, "DirectXUpdateRects image_src_clipped"
616                      " coords: %i,%i,%i,%i",
617                      rect_src_clipped.left, rect_src_clipped.top,
618                      rect_src_clipped.right, rect_src_clipped.bottom );
619 #endif
620
621     /* Signal the size change */
622     if( !p_vout->p_sys->p_event->b_die )
623     {
624         if( p_vout->p_sys->b_using_overlay )
625         {
626             DirectXUpdateOverlay( p_vout );
627         }
628         else
629         {
630             p_vout->p_sys->i_changes |= VOUT_SIZE_CHANGE;
631         }
632     }
633
634 #undef rect_src
635 #undef rect_src_clipped
636 #undef rect_dest
637 #undef rect_dest_clipped
638 }
639
640 /*****************************************************************************
641  * DirectXEventProc: This is the window event processing function.
642  *****************************************************************************
643  * On Windows, when you create a window you have to attach an event processing
644  * function to it. The aim of this function is to manage "Queued Messages" and
645  * "Nonqueued Messages".
646  * Queued Messages are those picked up and retransmitted by vout_Manage
647  * (using the GetMessage and DispatchMessage functions).
648  * Nonqueued Messages are those that Windows will send directly to this
649  * procedure (like WM_DESTROY, WM_WINDOWPOSCHANGED...)
650  *****************************************************************************/
651 static long FAR PASCAL DirectXEventProc( HWND hwnd, UINT message,
652                                          WPARAM wParam, LPARAM lParam )
653 {
654     vout_thread_t *p_vout;
655
656     if( message == WM_CREATE )
657     {
658         /* Store p_vout for future use */
659         p_vout = (vout_thread_t *)((CREATESTRUCT *)lParam)->lpCreateParams;
660         SetWindowLong( hwnd, GWL_USERDATA, (LONG)p_vout );
661     }
662     else
663     {
664         p_vout = (vout_thread_t *)GetWindowLong( hwnd, GWL_USERDATA );
665     }
666
667     switch( message )
668     {
669
670     case WM_WINDOWPOSCHANGED:
671         DirectXUpdateRects( p_vout, VLC_TRUE );
672         return 0;
673
674     /* the user wants to close the window */
675     case WM_CLOSE:
676     {
677         playlist_t * p_playlist =
678             (playlist_t *)vlc_object_find( p_vout, VLC_OBJECT_PLAYLIST,
679                                            FIND_ANYWHERE );
680         if( p_playlist == NULL )
681         {
682             return 0;
683         }
684
685         playlist_Stop( p_playlist );
686         vlc_object_release( p_playlist );
687         return 0;
688     }
689
690     /* the window has been closed so shut down everything now */
691     case WM_DESTROY:
692         msg_Dbg( p_vout, "WinProc WM_DESTROY" );
693         /* just destroy the window */
694         PostQuitMessage( 0 );
695         return 0;
696
697     case WM_SYSCOMMAND:
698         switch (wParam)
699         {
700             case SC_SCREENSAVE:                     /* catch the screensaver */
701             case SC_MONITORPOWER:              /* catch the monitor turn-off */
702                 msg_Dbg( p_vout, "WinProc WM_SYSCOMMAND" );
703                 return 0;                  /* this stops them from happening */
704             case IDM_TOGGLE_ON_TOP:            /* toggle the "on top" status */
705             {
706                 vlc_value_t val;
707                 msg_Dbg( p_vout, "WinProc WM_SYSCOMMAND: IDM_TOGGLE_ON_TOP");
708
709                 /* Get the current value... */
710                 if( var_Get( p_vout, "directx-on-top", &val ) < 0 )
711                     return 0;
712                 /* ...and change it */
713                 val.b_bool = !val.b_bool;
714                 var_Set( p_vout, "directx-on-top", val );
715                 return 0;
716                 break;
717             }
718         }
719         break;
720
721     case WM_ERASEBKGND:
722         if( !p_vout->p_sys->b_using_overlay )
723         {
724             /* We want to eliminate unnecessary background redraws which create
725              * an annoying flickering */
726             int i_width, i_height, i_x, i_y;
727             RECT rect_temp;
728             GetClipBox( (HDC)wParam, &rect_temp );
729 #if 0
730             msg_Dbg( p_vout, "WinProc WM_ERASEBKGND %i,%i,%i,%i",
731                           rect_temp.left, rect_temp.top,
732                           rect_temp.right, rect_temp.bottom );
733 #endif
734             vout_PlacePicture( p_vout, p_vout->p_sys->i_window_width,
735                                p_vout->p_sys->i_window_height,
736                                &i_x, &i_y, &i_width, &i_height );
737             ExcludeClipRect( (HDC)wParam, i_x, i_y,
738                              i_x + i_width, i_y + i_height );
739         }
740         break;
741
742     default:
743         //msg_Dbg( p_vout, "WinProc WM Default %i", message );
744         break;
745     }
746
747     return DefWindowProc(hwnd, message, wParam, lParam);
748 }