1 /*****************************************************************************
2 * vout_events.c: Windows DirectX video output events handler
3 *****************************************************************************
4 * Copyright (C) 1998, 1999, 2000 VideoLAN
5 * $Id: vout_events.c,v 1.3 2001/07/25 08:41:21 gbazin Exp $
7 * Authors: Gildas Bazin <gbazin@netcourrier.com>
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.
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.
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 *****************************************************************************/
25 /*****************************************************************************
26 * Preamble: This file contains the functions related to the creation of
27 * a window and the handling of its messages (events).
28 *****************************************************************************/
31 #include <errno.h> /* ENOMEM */
32 #include <stdlib.h> /* free() */
33 #include <string.h> /* strerror() */
43 #include "video_output.h"
50 #include "interface.h"
54 #include "modules_export.h"
56 #include "vout_directx.h"
58 /*****************************************************************************
60 *****************************************************************************/
61 static int DirectXCreateWindow( vout_thread_t *p_vout );
62 static void DirectXCloseWindow ( vout_thread_t *p_vout );
63 static long FAR PASCAL DirectXEventProc ( HWND hwnd, UINT message,
64 WPARAM wParam, LPARAM lParam );
66 /*****************************************************************************
68 * I really hate them, but here I don't have any choice. And anyway, this
69 * shouldn't really affect reentrancy.
70 * This variable is used to know if we have to update the overlay position
71 * and size. This is to fix the bug we've got when the Windows option, to show
72 * the content of a window when you drag it, is enabled.
73 *****************************************************************************/
74 int b_directx_update_overlay = 0;
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 DirectXEventThread( vout_thread_t *p_vout )
87 boolean_t b_dispatch_msg = TRUE;
91 /* Create a window for the video */
92 /* Creating a window under Windows also initializes the thread's event
94 if( DirectXCreateWindow( p_vout ) )
96 intf_ErrMsg( "vout error: can't create window" );
97 p_vout->p_sys->i_event_thread_status = THREAD_FATAL;
98 /* signal the creation of the window */
99 vlc_mutex_lock( &p_vout->p_sys->event_thread_lock );
100 vlc_cond_signal( &p_vout->p_sys->event_thread_wait );
101 vlc_mutex_unlock( &p_vout->p_sys->event_thread_lock );
105 /* signal the creation of the window */
106 p_vout->p_sys->i_event_thread_status = THREAD_READY;
107 vlc_mutex_lock( &p_vout->p_sys->event_thread_lock );
108 vlc_cond_signal( &p_vout->p_sys->event_thread_wait );
109 vlc_mutex_unlock( &p_vout->p_sys->event_thread_lock );
112 while( !p_vout->b_die && !p_vout->p_sys->b_event_thread_die )
115 /* GetMessage will sleep if there's no message in the queue */
116 if( GetMessage( &msg, NULL, 0, 0 ) >= 0 )
118 switch( msg.message )
122 intf_WarnMsg( 3, "vout: vout_Manage WM_CLOSE" );
126 intf_WarnMsg( 3, "vout: vout_Manage WM_QUIT" );
127 p_vout->p_sys->b_event_thread_die = 1;
128 p_main->p_intf->b_die = 1;
132 intf_WarnMsg( 3, "vout: vout_Manage WM_MOVE" );
133 if( !p_vout->b_need_render )
135 p_vout->p_sys->i_changes |= VOUT_SIZE_CHANGE;
137 /* don't create a never ending loop */
138 b_dispatch_msg = FALSE;
142 intf_WarnMsg( 3, "vout: vout_Manage WM_APP" );
143 if( !p_vout->b_need_render )
145 p_vout->p_sys->i_changes |= VOUT_SIZE_CHANGE;
147 /* size change has been handled (to fix a bug)*/
148 b_directx_update_overlay = 0;
149 /* don't create a never ending loop */
150 b_dispatch_msg = FALSE;
155 intf_WarnMsg( 4, "vout: vout_Manage WM_PAINT" );
159 intf_WarnMsg( 4, "vout: vout_Manage WM_ERASEBKGND" );
164 intf_WarnMsg( 4, "vout: vout_Manage WM_MOUSEMOVE" );
165 if( p_vout->p_sys->b_cursor )
167 if( p_vout->p_sys->b_cursor_autohidden )
169 p_vout->p_sys->b_cursor_autohidden = 0;
170 p_vout->p_sys->i_lastmoved = mdate();
175 p_vout->p_sys->i_lastmoved = mdate();
181 intf_WarnMsg( 4, "vout: vout_Manage WM_RBUTTONUP" );
182 p_main->p_intf->b_menu_change = 1;
186 /* the key events are first processed here. The next
187 * message processed by this main message loop will be the
188 * char translation of the key event */
189 intf_WarnMsg( 3, "vout: vout_Manage WM_KEYDOWN" );
194 PostQuitMessage( 0 );
197 TranslateMessage(&msg);
198 b_dispatch_msg = FALSE;
202 intf_WarnMsg( 3, "vout: vout_Manage WM_CHAR" );
207 PostQuitMessage( 0 );
210 case 'f': /* switch to fullscreen */
212 p_vout->p_sys->i_changes |= VOUT_FULLSCREEN_CHANGE;
215 case 'y': /* switch to hard YUV */
217 p_vout->p_sys->i_changes |= VOUT_YUV_CHANGE;
220 case 'c': /* toggle grayscale */
222 p_vout->b_grayscale = ! p_vout->b_grayscale;
223 p_vout->p_sys->i_changes |= VOUT_GRAYSCALE_CHANGE;
226 case 'i': /* toggle info */
228 p_vout->b_info = ! p_vout->b_info;
229 p_vout->p_sys->i_changes |= VOUT_INFO_CHANGE;
232 case 's': /* toggle scaling */
234 p_vout->b_scale = ! p_vout->b_scale;
235 p_vout->p_sys->i_changes |= VOUT_SCALE_CHANGE;
238 case ' ': /* toggle interface */
239 p_vout->b_interface = ! p_vout->b_interface;
240 p_vout->p_sys->i_changes |= VOUT_INTF_CHANGE;
243 case '0': network_ChannelJoin( 0 ); break;
244 case '1': network_ChannelJoin( 1 ); break;
245 case '2': network_ChannelJoin( 2 ); break;
246 case '3': network_ChannelJoin( 3 ); break;
247 case '4': network_ChannelJoin( 4 ); break;
248 case '5': network_ChannelJoin( 5 ); break;
249 case '6': network_ChannelJoin( 6 ); break;
250 case '7': network_ChannelJoin( 7 ); break;
251 case '8': network_ChannelJoin( 8 ); break;
252 case '9': network_ChannelJoin( 9 ); break;
255 if( intf_ProcessKey( p_main->p_intf,
256 (char )msg.wParam ) )
258 intf_DbgMsg( "unhandled key '%c' (%i)",
259 (char)msg.wParam, msg.wParam );
266 intf_WarnMsg( 4, "vout: vout_Manage WM Default %i",
273 /* don't create a never ending loop */
276 TranslateMessage(&msg);
277 DispatchMessage(&msg);
279 b_dispatch_msg = TRUE;
281 } /* if( GetMessage() ) */
284 intf_ErrMsg("vout error: GetMessage failed in DirectXEventThread");
285 p_vout->p_sys->b_event_thread_die = 1;
286 } /* End if( GetMessage() ) */
289 } /* End Main loop */
291 /* Destroy the window */
292 DirectXCloseWindow( p_vout );
294 /* Set thread Status */
295 p_vout->p_sys->i_event_thread_status = THREAD_OVER;
300 /* following functions are local */
302 /*****************************************************************************
303 * DirectXCreateWindow: create a window for the video.
304 *****************************************************************************
305 * Before creating a direct draw surface, we need to create a window in which
306 * the video will be displayed. This window will also allow us to capture the
308 *****************************************************************************/
309 static int DirectXCreateWindow( vout_thread_t *p_vout )
312 WNDCLASSEX wc; /* window class components */
317 intf_WarnMsg( 3, "vout: DirectXCreateWindow" );
319 /* get this module's instance */
320 hInstance = GetModuleHandle(NULL);
322 /* Create a BRUSH that will be used by Windows to paint the window
324 * This window background is important for us as it will be used by the
325 * graphics card to display the overlay.
326 * This is why we carefully choose the color for this background, the goal
327 * being to choose a color which isn't complete black but nearly. We
328 * obviously don't want to use black as a colorkey for the overlay because
329 * black is one of the most used color and thus would give us undesirable
331 /* the first step is to find the colorkey we want to use. The difficulty
332 * comes from the potential dithering (depends on the display depth)
333 * because we need to know the real RGB value of the chosen colorkey */
334 hdc = GetDC( GetDesktopWindow() );
335 for( colorkey = 5; colorkey < 0xFF /*all shades of red*/; colorkey++ )
337 if( colorkey == GetNearestColor( hdc, colorkey ) )
340 intf_WarnMsg(3,"vout: DirectXCreateWindow background color:%i", colorkey);
341 ReleaseDC( p_vout->p_sys->hwnd, hdc );
343 /* create the actual brush */
344 p_vout->p_sys->hbrush = CreateSolidBrush(colorkey);
345 p_vout->p_sys->i_colorkey = (int)colorkey;
347 /* fill in the window class structure */
348 wc.cbSize = sizeof(WNDCLASSEX);
349 wc.style = 0; /* no special styles */
350 wc.lpfnWndProc = (WNDPROC)DirectXEventProc; /* event handler */
351 wc.cbClsExtra = 0; /* no extra class data */
352 wc.cbWndExtra = 0; /* no extra window data */
353 wc.hInstance = hInstance; /* instance */
354 wc.hIcon = LoadIcon(NULL, IDI_APPLICATION); /* load the vlc icon */
355 wc.hCursor = LoadCursor(NULL, IDC_ARROW); /* load a default cursor */
356 wc.hbrBackground = p_vout->p_sys->hbrush; /* background color */
357 wc.lpszMenuName = NULL; /* no menu */
358 wc.lpszClassName = "VLC DirectX"; /* use a special class */
359 wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION); /* load the vlc icon */
361 /* register the window class */
362 if (!RegisterClassEx(&wc))
364 intf_WarnMsg( 3, "vout: DirectXCreateWindow register window FAILED" );
368 /* when you create a window you give the dimensions you wish it to have.
369 * Unfortunatly these dimensions will include the borders and title bar.
370 * We use the following function to find out the size of the window
371 * corresponding to the useable surface we want */
372 rect_window.top = 10;
373 rect_window.left = 10;
374 rect_window.right = rect_window.left + p_vout->p_sys->i_window_width;
375 rect_window.bottom = rect_window.top + p_vout->p_sys->i_window_height;
376 AdjustWindowRect( &rect_window, WS_OVERLAPPEDWINDOW|WS_SIZEBOX, 0 );
378 /* create the window */
379 p_vout->p_sys->hwnd = CreateWindow("VLC DirectX",/* name of window class */
380 "VLC DirectX", /* window title bar text */
382 | WS_SIZEBOX | WS_VISIBLE, /* window style */
383 10, /* default X coordinate */
384 10, /* default Y coordinate */
385 rect_window.right - rect_window.left, /* window width */
386 rect_window.bottom - rect_window.top, /* window height */
387 NULL, /* no parent window */
388 NULL, /* no menu in this window */
389 hInstance, /* handle of this program instance */
390 NULL); /* no additional arguments */
392 if (p_vout->p_sys->hwnd == NULL) {
393 intf_WarnMsg( 3, "vout: DirectXCreateWindow create window FAILED" );
397 /* now display the window */
398 ShowWindow(p_vout->p_sys->hwnd, SW_SHOW);
403 /*****************************************************************************
404 * DirectXCloseWindow: close the window created by DirectXCreateWindow
405 *****************************************************************************
406 * This function returns all resources allocated by DirectXCreateWindow.
407 *****************************************************************************/
408 static void DirectXCloseWindow( vout_thread_t *p_vout )
412 intf_WarnMsg( 3, "vout: DirectXCloseWindow" );
413 if( p_vout->p_sys->hwnd != NULL )
415 DestroyWindow( p_vout->p_sys->hwnd);
416 p_vout->p_sys->hwnd = NULL;
419 hInstance = GetModuleHandle(NULL);
420 UnregisterClass( "VLC DirectX", /* class name */
421 hInstance ); /* handle to application instance */
423 /* free window background brush */
424 if( p_vout->p_sys->hwnd != NULL )
426 DeleteObject( p_vout->p_sys->hbrush );
427 p_vout->p_sys->hbrush = NULL;
431 /*****************************************************************************
432 * DirectXEventProc: This is the window event processing function.
433 *****************************************************************************
434 * On Windows, when you create a window you have to attach an event processing
435 * function to it. The aim of this function is to manage "Queued Messages" and
436 * "Nonqueued Messages".
437 * Queued Messages are those picked up and retransmitted by vout_Manage
438 * (using the GetMessage function).
439 * Nonqueued Messages are those that Windows will send directly to this
440 * function (like WM_DESTROY, WM_WINDOWPOSCHANGED...)
441 *****************************************************************************/
442 static long FAR PASCAL DirectXEventProc( HWND hwnd, UINT message,
443 WPARAM wParam, LPARAM lParam )
450 intf_WarnMsg( 3, "vout: WinProc WM_APP" );
454 intf_WarnMsg( 4, "vout: WinProc WM_ACTIVED" );
458 intf_WarnMsg( 4, "vout: WinProc WM_CREATE" );
461 /* the user wants to close the window */
463 intf_WarnMsg( 4, "vout: WinProc WM_CLOSE" );
467 /* the window has been closed so shut down everything now */
469 intf_WarnMsg( 4, "vout: WinProc WM_DESTROY" );
470 PostQuitMessage( 0 );
476 case SC_SCREENSAVE: /* catch the screensaver */
477 case SC_MONITORPOWER: /* catch the monitor turn-off */
478 intf_WarnMsg( 3, "vout: WinProc WM_SYSCOMMAND" );
479 return 0; /* this stops them from happening */
485 intf_WarnMsg( 4, "vout: WinProc WM_MOVE" );
489 intf_WarnMsg( 4, "vout: WinProc WM_SIZE" );
493 intf_WarnMsg( 4, "vout: WinProc WM_MOVING" );
496 case WM_ENTERSIZEMOVE:
497 intf_WarnMsg( 4, "vout: WinProc WM_ENTERSIZEMOVE" );
501 intf_WarnMsg( 4, "vout: WinProc WM_SIZING" );
505 case WM_WINDOWPOSCHANGED:
506 intf_WarnMsg( 3, "vout: WinProc WM_WINDOWPOSCHANGED" );
507 b_directx_update_overlay = 1;
508 PostMessage( hwnd, WM_APP, 0, 0);
512 case WM_WINDOWPOSCHANGING:
513 intf_WarnMsg( 3, "vout: WinProc WM_WINDOWPOSCHANGING" );
517 intf_WarnMsg( 4, "vout: WinProc WM_PAINT" );
521 intf_WarnMsg( 4, "vout: WinProc WM_ERASEBKGND" );
525 intf_WarnMsg( 4, "vout: WinProc WM Default %i", message );
530 return DefWindowProc(hwnd, message, wParam, lParam);