dlls/winex11.drv/desktop.c

   1 /*
   2  * X11DRV desktop window handling
   3  *
   4  * Copyright 2001 Alexandre Julliard
   5  * Copyright 2020 Zhiyi Zhang for CodeWeavers
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #if 0
  23 #pragma makedep unix
  24 #endif
  25
  26 #include "config.h"
  27 #include <X11/cursorfont.h>
  28 #include <X11/Xlib.h>
  29
  30 #define NONAMELESSSTRUCT
  31 #define NONAMELESSUNION
  32
  33 #include "x11drv.h"
  34
  35 /* avoid conflict with field names in included win32 headers */
  36 #undef Status
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(x11drv);
  40
  41 static unsigned int max_width;
  42 static unsigned int max_height;
  43 static unsigned int desktop_width;
  44 static unsigned int desktop_height;
  45
  46 static struct screen_size {
  47     unsigned int width;
  48     unsigned int height;
  49 } screen_sizes[] = {
  50     /* 4:3 */
  51     { 320,  240},
  52     { 400,  300},
  53     { 512,  384},
  54     { 640,  480},
  55     { 768,  576},
  56     { 800,  600},
  57     {1024,  768},
  58     {1152,  864},
  59     {1280,  960},
  60     {1400, 1050},
  61     {1600, 1200},
  62     {2048, 1536},
  63     /* 5:4 */
  64     {1280, 1024},
  65     {2560, 2048},
  66     /* 16:9 */
  67     {1280,  720},
  68     {1366,  768},
  69     {1600,  900},
  70     {1920, 1080},
  71     {2560, 1440},
  72     {3840, 2160},
  73     /* 16:10 */
  74     { 320,  200},
  75     { 640,  400},
  76     {1280,  800},
  77     {1440,  900},
  78     {1680, 1050},
  79     {1920, 1200},
  80     {2560, 1600}
  81 };
  82
  83 #define _NET_WM_STATE_REMOVE 0
  84 #define _NET_WM_STATE_ADD 1
  85
  86 /* parse the desktop size specification */
  87 static BOOL parse_size( const WCHAR *size, unsigned int *width, unsigned int *height )
  88 {
  89     WCHAR *end;
  90
  91     *width = wcstoul( size, &end, 10 );
  92     if (end == size) return FALSE;
  93     if (*end != 'x') return FALSE;
  94     size = end + 1;
  95     *height = wcstoul( size, &end, 10 );
  96     return !*end;
  97 }
  98
  99 /* retrieve the default desktop size from the registry */
 100 static BOOL get_default_desktop_size( unsigned int *width, unsigned int *height )
 101 {
 102     static const WCHAR defaultW[] = {'D','e','f','a','u','l','t',0};
 103     WCHAR buffer[4096];
 104     KEY_VALUE_PARTIAL_INFORMATION *value = (void *)buffer;
 105     DWORD size;
 106     HKEY hkey;
 107
 108     /* @@ Wine registry key: HKCU\Software\Wine\Explorer\Desktops */
 109     if (!(hkey = open_hkcu_key( "Software\\Wine\\Explorer\\Desktops" ))) return FALSE;
 110
 111     size = query_reg_value( hkey, defaultW, value, sizeof(buffer) );
 112     NtClose( hkey );
 113     if (!size || value->Type != REG_SZ) return FALSE;
 114
 115     if (!parse_size( (const WCHAR *)value->Data, width, height )) return FALSE;
 116     return TRUE;
 117 }
 118
 119 /* Return TRUE if Wine is currently in virtual desktop mode */
 120 BOOL is_virtual_desktop(void)
 121 {
 122     return root_window != DefaultRootWindow( gdi_display );
 123 }
 124
 125 /* Virtual desktop display settings handler */
 126 static BOOL X11DRV_desktop_get_id( const WCHAR *device_name, BOOL is_primary, x11drv_settings_id *id )
 127 {
 128     if (!is_primary) return FALSE;
 129     id->id = 0;
 130     return TRUE;
 131 }
 132
 133 static void add_desktop_mode( DEVMODEW *mode, DWORD depth, DWORD width, DWORD height )
 134 {
 135     mode->dmSize = sizeof(*mode);
 136     mode->dmFields = DM_DISPLAYORIENTATION | DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT |
 137                      DM_DISPLAYFLAGS | DM_DISPLAYFREQUENCY;
 138     mode->u1.s2.dmDisplayOrientation = DMDO_DEFAULT;
 139     mode->dmBitsPerPel = depth;
 140     mode->dmPelsWidth = width;
 141     mode->dmPelsHeight = height;
 142     mode->u2.dmDisplayFlags = 0;
 143     mode->dmDisplayFrequency = 60;
 144 }
 145
 146 static BOOL X11DRV_desktop_get_modes( x11drv_settings_id id, DWORD flags, DEVMODEW **new_modes, UINT *mode_count )
 147 {
 148     UINT depth_idx, size_idx, mode_idx = 0;
 149     UINT screen_width, screen_height;
 150     DEVMODEW *modes;
 151
 152     if (!get_default_desktop_size( &screen_width, &screen_height ))
 153     {
 154         screen_width = max_width;
 155         screen_height = max_height;
 156     }
 157
 158     /* Allocate memory for modes in different color depths */
 159     if (!(modes = calloc( (ARRAY_SIZE(screen_sizes) + 2) * DEPTH_COUNT, sizeof(*modes))) )
 160     {
 161         RtlSetLastWin32Error( ERROR_NOT_ENOUGH_MEMORY );
 162         return FALSE;
 163     }
 164
 165     for (depth_idx = 0; depth_idx < DEPTH_COUNT; ++depth_idx)
 166     {
 167         for (size_idx = 0; size_idx < ARRAY_SIZE(screen_sizes); ++size_idx)
 168         {
 169             if (screen_sizes[size_idx].width > max_width ||
 170                 screen_sizes[size_idx].height > max_height)
 171                 continue;
 172
 173             if (screen_sizes[size_idx].width == max_width &&
 174                 screen_sizes[size_idx].height == max_height)
 175                 continue;
 176
 177             if (screen_sizes[size_idx].width == screen_width &&
 178                 screen_sizes[size_idx].height == screen_height)
 179                 continue;
 180
 181             add_desktop_mode( &modes[mode_idx++], depths[depth_idx], screen_sizes[size_idx].width,
 182                               screen_sizes[size_idx].height );
 183         }
 184
 185         add_desktop_mode( &modes[mode_idx++], depths[depth_idx], screen_width, screen_height );
 186         if (max_width != screen_width || max_height != screen_height)
 187             add_desktop_mode( &modes[mode_idx++], depths[depth_idx], max_width, max_height );
 188     }
 189
 190     *new_modes = modes;
 191     *mode_count = mode_idx;
 192     return TRUE;
 193 }
 194
 195 static void X11DRV_desktop_free_modes( DEVMODEW *modes )
 196 {
 197     free( modes );
 198 }
 199
 200 static BOOL X11DRV_desktop_get_current_mode( x11drv_settings_id id, DEVMODEW *mode )
 201 {
 202     RECT primary_rect = NtUserGetPrimaryMonitorRect();
 203
 204     mode->dmFields = DM_DISPLAYORIENTATION | DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT |
 205                      DM_DISPLAYFLAGS | DM_DISPLAYFREQUENCY | DM_POSITION;
 206     mode->u1.s2.dmDisplayOrientation = DMDO_DEFAULT;
 207     mode->dmBitsPerPel = screen_bpp;
 208     mode->dmPelsWidth = primary_rect.right - primary_rect.left;
 209     mode->dmPelsHeight = primary_rect.bottom - primary_rect.top;
 210     mode->u2.dmDisplayFlags = 0;
 211     mode->dmDisplayFrequency = 60;
 212     mode->u1.s2.dmPosition.x = 0;
 213     mode->u1.s2.dmPosition.y = 0;
 214     return TRUE;
 215 }
 216
 217 static LONG X11DRV_desktop_set_current_mode( x11drv_settings_id id, const DEVMODEW *mode )
 218 {
 219     if (mode->dmFields & DM_BITSPERPEL && mode->dmBitsPerPel != screen_bpp)
 220         WARN("Cannot change screen color depth from %dbits to %dbits!\n",
 221              screen_bpp, (int)mode->dmBitsPerPel);
 222
 223     desktop_width = mode->dmPelsWidth;
 224     desktop_height = mode->dmPelsHeight;
 225     return DISP_CHANGE_SUCCESSFUL;
 226 }
 227
 228 static void query_desktop_work_area( RECT *rc_work )
 229 {
 230     static const WCHAR trayW[] = {'S','h','e','l','l','_','T','r','a','y','W','n','d',0};
 231     UNICODE_STRING str = RTL_CONSTANT_STRING( trayW );
 232     RECT rect;
 233     HWND hwnd = NtUserFindWindowEx( 0, 0, &str, NULL, 0 );
 234
 235     if (!hwnd || !NtUserIsWindowVisible( hwnd )) return;
 236     if (!NtUserGetWindowRect( hwnd, &rect )) return;
 237     if (rect.top) rc_work->bottom = rect.top;
 238     else rc_work->top = rect.bottom;
 239     TRACE( "found tray %p %s work area %s\n", hwnd, wine_dbgstr_rect( &rect ), wine_dbgstr_rect( rc_work ) );
 240 }
 241
 242 static BOOL X11DRV_desktop_get_gpus( struct gdi_gpu **new_gpus, int *count )
 243 {
 244     static const WCHAR wine_adapterW[] = {'W','i','n','e',' ','A','d','a','p','t','e','r',0};
 245     struct gdi_gpu *gpu;
 246
 247     gpu = calloc( 1, sizeof(*gpu) );
 248     if (!gpu) return FALSE;
 249
 250     if (!get_host_primary_gpu( gpu ))
 251     {
 252         WARN( "Failed to get host primary gpu.\n" );
 253         lstrcpyW( gpu->name, wine_adapterW );
 254     }
 255
 256     *new_gpus = gpu;
 257     *count = 1;
 258     return TRUE;
 259 }
 260
 261 static void X11DRV_desktop_free_gpus( struct gdi_gpu *gpus )
 262 {
 263     free( gpus );
 264 }
 265
 266 /* TODO: Support multi-head virtual desktop */
 267 static BOOL X11DRV_desktop_get_adapters( ULONG_PTR gpu_id, struct gdi_adapter **new_adapters, int *count )
 268 {
 269     struct gdi_adapter *adapter;
 270
 271     adapter = calloc( 1, sizeof(*adapter) );
 272     if (!adapter) return FALSE;
 273
 274     adapter->state_flags = DISPLAY_DEVICE_PRIMARY_DEVICE;
 275     if (desktop_width && desktop_height)
 276         adapter->state_flags |= DISPLAY_DEVICE_ATTACHED_TO_DESKTOP;
 277
 278     *new_adapters = adapter;
 279     *count = 1;
 280     return TRUE;
 281 }
 282
 283 static void X11DRV_desktop_free_adapters( struct gdi_adapter *adapters )
 284 {
 285     free( adapters );
 286 }
 287
 288 static BOOL X11DRV_desktop_get_monitors( ULONG_PTR adapter_id, struct gdi_monitor **new_monitors, int *count )
 289 {
 290     struct gdi_monitor *monitor;
 291
 292     monitor = calloc( 1, sizeof(*monitor) );
 293     if (!monitor) return FALSE;
 294
 295     SetRect( &monitor->rc_monitor, 0, 0, desktop_width, desktop_height );
 296     SetRect( &monitor->rc_work, 0, 0, desktop_width, desktop_height );
 297     query_desktop_work_area( &monitor->rc_work );
 298     monitor->state_flags = DISPLAY_DEVICE_ATTACHED;
 299     monitor->edid_len = 0;
 300     monitor->edid = NULL;
 301     if (desktop_width && desktop_height)
 302         monitor->state_flags |= DISPLAY_DEVICE_ACTIVE;
 303
 304     *new_monitors = monitor;
 305     *count = 1;
 306     return TRUE;
 307 }
 308
 309 static void X11DRV_desktop_free_monitors( struct gdi_monitor *monitors, int count )
 310 {
 311     free( monitors );
 312 }
 313
 314 /***********************************************************************
 315  *              X11DRV_init_desktop
 316  *
 317  * Setup the desktop when not using the root window.
 318  */
 319 void X11DRV_init_desktop( Window win, unsigned int width, unsigned int height )
 320 {
 321     RECT primary_rect = get_host_primary_monitor_rect();
 322     struct x11drv_settings_handler settings_handler;
 323
 324     root_window = win;
 325     managed_mode = FALSE;  /* no managed windows in desktop mode */
 326     desktop_width = width;
 327     desktop_height = height;
 328     max_width = primary_rect.right;
 329     max_height = primary_rect.bottom;
 330
 331     /* Initialize virtual desktop display settings handler */
 332     settings_handler.name = "Virtual Desktop";
 333     settings_handler.priority = 1000;
 334     settings_handler.get_id = X11DRV_desktop_get_id;
 335     settings_handler.get_modes = X11DRV_desktop_get_modes;
 336     settings_handler.free_modes = X11DRV_desktop_free_modes;
 337     settings_handler.get_current_mode = X11DRV_desktop_get_current_mode;
 338     settings_handler.set_current_mode = X11DRV_desktop_set_current_mode;
 339     X11DRV_Settings_SetHandler( &settings_handler );
 340
 341     /* Initialize virtual desktop mode display device handler */
 342     desktop_handler.name = "Virtual Desktop";
 343     desktop_handler.get_gpus = X11DRV_desktop_get_gpus;
 344     desktop_handler.get_adapters = X11DRV_desktop_get_adapters;
 345     desktop_handler.get_monitors = X11DRV_desktop_get_monitors;
 346     desktop_handler.free_gpus = X11DRV_desktop_free_gpus;
 347     desktop_handler.free_adapters = X11DRV_desktop_free_adapters;
 348     desktop_handler.free_monitors = X11DRV_desktop_free_monitors;
 349     desktop_handler.register_event_handlers = NULL;
 350     TRACE("Display device functions are now handled by: Virtual Desktop\n");
 351 }
 352
 353
 354 /***********************************************************************
 355  *           X11DRV_CreateDesktop
 356  *
 357  * Create the X11 desktop window for the desktop mode.
 358  */
 359 BOOL X11DRV_CreateDesktop( const WCHAR *name, UINT width, UINT height )
 360 {
 361     XSetWindowAttributes win_attr;
 362     Window win;
 363     Display *display = thread_init_display();
 364
 365     TRACE( "%s %ux%u\n", debugstr_w(name), width, height );
 366
 367     /* Create window */
 368     win_attr.event_mask = ExposureMask | KeyPressMask | KeyReleaseMask | EnterWindowMask |
 369                           PointerMotionMask | ButtonPressMask | ButtonReleaseMask | FocusChangeMask;
 370     win_attr.cursor = XCreateFontCursor( display, XC_top_left_arrow );
 371
 372     if (default_visual.visual != DefaultVisual( display, DefaultScreen(display) ))
 373         win_attr.colormap = XCreateColormap( display, DefaultRootWindow(display),
 374                                              default_visual.visual, AllocNone );
 375     else
 376         win_attr.colormap = None;
 377
 378     win = XCreateWindow( display, DefaultRootWindow(display),
 379                          0, 0, width, height, 0, default_visual.depth, InputOutput,
 380                          default_visual.visual, CWEventMask | CWCursor | CWColormap, &win_attr );
 381     if (!win) return FALSE;
 382     XFlush( display );
 383
 384     X11DRV_init_desktop( win, width, height );
 385     return TRUE;
 386 }
 387
 388 BOOL is_desktop_fullscreen(void)
 389 {
 390     RECT primary_rect = NtUserGetPrimaryMonitorRect();
 391     return (primary_rect.right - primary_rect.left == max_width &&
 392             primary_rect.bottom - primary_rect.top == max_height);
 393 }
 394
 395 static void update_desktop_fullscreen( unsigned int width, unsigned int height)
 396 {
 397     Display *display = thread_display();
 398     XEvent xev;
 399
 400     if (!display || !is_virtual_desktop()) return;
 401
 402     xev.xclient.type = ClientMessage;
 403     xev.xclient.window = root_window;
 404     xev.xclient.message_type = x11drv_atom(_NET_WM_STATE);
 405     xev.xclient.serial = 0;
 406     xev.xclient.display = display;
 407     xev.xclient.send_event = True;
 408     xev.xclient.format = 32;
 409     if (width == max_width && height == max_height)
 410         xev.xclient.data.l[0] = _NET_WM_STATE_ADD;
 411     else
 412         xev.xclient.data.l[0] = _NET_WM_STATE_REMOVE;
 413     xev.xclient.data.l[1] = x11drv_atom(_NET_WM_STATE_FULLSCREEN);
 414     xev.xclient.data.l[2] = 0;
 415     xev.xclient.data.l[3] = 1;
 416
 417     TRACE("action=%li\n", xev.xclient.data.l[0]);
 418
 419     XSendEvent( display, DefaultRootWindow(display), False,
 420                 SubstructureRedirectMask | SubstructureNotifyMask, &xev );
 421
 422     xev.xclient.data.l[1] = x11drv_atom(_NET_WM_STATE_MAXIMIZED_VERT);
 423     xev.xclient.data.l[2] = x11drv_atom(_NET_WM_STATE_MAXIMIZED_HORZ);
 424     XSendEvent( display, DefaultRootWindow(display), False,
 425                 SubstructureRedirectMask | SubstructureNotifyMask, &xev );
 426 }
 427
 428 /***********************************************************************
 429  *              X11DRV_resize_desktop
 430  */
 431 void X11DRV_resize_desktop(void)
 432 {
 433     static RECT old_virtual_rect;
 434
 435     RECT primary_rect, virtual_rect;
 436     HWND hwnd = NtUserGetDesktopWindow();
 437     INT width, height;
 438
 439     virtual_rect = NtUserGetVirtualScreenRect();
 440     primary_rect = NtUserGetPrimaryMonitorRect();
 441     width = primary_rect.right;
 442     height = primary_rect.bottom;
 443
 444     TRACE( "desktop %p change to (%dx%d)\n", hwnd, width, height );
 445     update_desktop_fullscreen( width, height );
 446     NtUserSetWindowPos( hwnd, 0, virtual_rect.left, virtual_rect.top,
 447                         virtual_rect.right - virtual_rect.left, virtual_rect.bottom - virtual_rect.top,
 448                         SWP_NOZORDER | SWP_NOACTIVATE | SWP_DEFERERASE );
 449
 450     if (old_virtual_rect.left != virtual_rect.left || old_virtual_rect.top != virtual_rect.top)
 451         send_message_timeout( HWND_BROADCAST, WM_X11DRV_DESKTOP_RESIZED, old_virtual_rect.left,
 452                               old_virtual_rect.top, SMTO_ABORTIFHUNG, 2000, FALSE );
 453
 454     /* forward clip_fullscreen_window request to the foreground window */
 455     send_notify_message( NtUserGetForegroundWindow(), WM_X11DRV_CLIP_CURSOR_REQUEST, TRUE, TRUE );
 456
 457     old_virtual_rect = virtual_rect;
 458 }