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, ULONG_PTR *id )
 127 {
 128     WCHAR primary_adapter[CCHDEVICENAME];
 129
 130     if (!get_primary_adapter( primary_adapter ) || wcsicmp( primary_adapter, device_name ))
 131         return FALSE;
 132
 133     *id = 0;
 134     return TRUE;
 135 }
 136
 137 static void add_desktop_mode( DEVMODEW *mode, DWORD depth, DWORD width, DWORD height )
 138 {
 139     mode->dmSize = sizeof(*mode);
 140     mode->dmFields = DM_DISPLAYORIENTATION | DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT |
 141                      DM_DISPLAYFLAGS | DM_DISPLAYFREQUENCY;
 142     mode->u1.s2.dmDisplayOrientation = DMDO_DEFAULT;
 143     mode->dmBitsPerPel = depth;
 144     mode->dmPelsWidth = width;
 145     mode->dmPelsHeight = height;
 146     mode->u2.dmDisplayFlags = 0;
 147     mode->dmDisplayFrequency = 60;
 148 }
 149
 150 static BOOL X11DRV_desktop_get_modes( ULONG_PTR id, DWORD flags, DEVMODEW **new_modes, UINT *mode_count )
 151 {
 152     UINT depth_idx, size_idx, mode_idx = 0;
 153     UINT screen_width, screen_height;
 154     DEVMODEW *modes;
 155
 156     if (!get_default_desktop_size( &screen_width, &screen_height ))
 157     {
 158         screen_width = max_width;
 159         screen_height = max_height;
 160     }
 161
 162     /* Allocate memory for modes in different color depths */
 163     if (!(modes = calloc( (ARRAY_SIZE(screen_sizes) + 2) * DEPTH_COUNT, sizeof(*modes))) )
 164     {
 165         RtlSetLastWin32Error( ERROR_NOT_ENOUGH_MEMORY );
 166         return FALSE;
 167     }
 168
 169     for (depth_idx = 0; depth_idx < DEPTH_COUNT; ++depth_idx)
 170     {
 171         for (size_idx = 0; size_idx < ARRAY_SIZE(screen_sizes); ++size_idx)
 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 == max_width &&
 178                 screen_sizes[size_idx].height == max_height)
 179                 continue;
 180
 181             if (screen_sizes[size_idx].width == screen_width &&
 182                 screen_sizes[size_idx].height == screen_height)
 183                 continue;
 184
 185             add_desktop_mode( &modes[mode_idx++], depths[depth_idx], screen_sizes[size_idx].width,
 186                               screen_sizes[size_idx].height );
 187         }
 188
 189         add_desktop_mode( &modes[mode_idx++], depths[depth_idx], screen_width, screen_height );
 190         if (max_width != screen_width || max_height != screen_height)
 191             add_desktop_mode( &modes[mode_idx++], depths[depth_idx], max_width, max_height );
 192     }
 193
 194     *new_modes = modes;
 195     *mode_count = mode_idx;
 196     return TRUE;
 197 }
 198
 199 static void X11DRV_desktop_free_modes( DEVMODEW *modes )
 200 {
 201     free( modes );
 202 }
 203
 204 static BOOL X11DRV_desktop_get_current_mode( ULONG_PTR id, DEVMODEW *mode )
 205 {
 206     RECT primary_rect = NtUserGetPrimaryMonitorRect();
 207
 208     mode->dmFields = DM_DISPLAYORIENTATION | DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT |
 209                      DM_DISPLAYFLAGS | DM_DISPLAYFREQUENCY | DM_POSITION;
 210     mode->u1.s2.dmDisplayOrientation = DMDO_DEFAULT;
 211     mode->dmBitsPerPel = screen_bpp;
 212     mode->dmPelsWidth = primary_rect.right - primary_rect.left;
 213     mode->dmPelsHeight = primary_rect.bottom - primary_rect.top;
 214     mode->u2.dmDisplayFlags = 0;
 215     mode->dmDisplayFrequency = 60;
 216     mode->u1.s2.dmPosition.x = 0;
 217     mode->u1.s2.dmPosition.y = 0;
 218     return TRUE;
 219 }
 220
 221 static LONG X11DRV_desktop_set_current_mode( ULONG_PTR id, const DEVMODEW *mode )
 222 {
 223     if (mode->dmFields & DM_BITSPERPEL && mode->dmBitsPerPel != screen_bpp)
 224         WARN("Cannot change screen color depth from %dbits to %dbits!\n", screen_bpp, mode->dmBitsPerPel);
 225
 226     desktop_width = mode->dmPelsWidth;
 227     desktop_height = mode->dmPelsHeight;
 228     return DISP_CHANGE_SUCCESSFUL;
 229 }
 230
 231 static void query_desktop_work_area( RECT *rc_work )
 232 {
 233     static const WCHAR trayW[] = {'S','h','e','l','l','_','T','r','a','y','W','n','d'};
 234     UNICODE_STRING str = { sizeof(trayW), sizeof(trayW), (WCHAR *)trayW };
 235     RECT rect;
 236     HWND hwnd = NtUserFindWindowEx( 0, 0, &str, NULL, 0 );
 237
 238     if (!hwnd || !NtUserIsWindowVisible( hwnd )) return;
 239     if (!NtUserGetWindowRect( hwnd, &rect )) return;
 240     if (rect.top) rc_work->bottom = rect.top;
 241     else rc_work->top = rect.bottom;
 242     TRACE( "found tray %p %s work area %s\n", hwnd, wine_dbgstr_rect( &rect ), wine_dbgstr_rect( rc_work ) );
 243 }
 244
 245 static BOOL X11DRV_desktop_get_gpus( struct gdi_gpu **new_gpus, int *count )
 246 {
 247     static const WCHAR wine_adapterW[] = {'W','i','n','e',' ','A','d','a','p','t','e','r',0};
 248     struct gdi_gpu *gpu;
 249
 250     gpu = calloc( 1, sizeof(*gpu) );
 251     if (!gpu) return FALSE;
 252
 253     if (!get_host_primary_gpu( gpu ))
 254     {
 255         WARN( "Failed to get host primary gpu.\n" );
 256         lstrcpyW( gpu->name, wine_adapterW );
 257     }
 258
 259     *new_gpus = gpu;
 260     *count = 1;
 261     return TRUE;
 262 }
 263
 264 static void X11DRV_desktop_free_gpus( struct gdi_gpu *gpus )
 265 {
 266     free( gpus );
 267 }
 268
 269 /* TODO: Support multi-head virtual desktop */
 270 static BOOL X11DRV_desktop_get_adapters( ULONG_PTR gpu_id, struct gdi_adapter **new_adapters, int *count )
 271 {
 272     struct gdi_adapter *adapter;
 273
 274     adapter = calloc( 1, sizeof(*adapter) );
 275     if (!adapter) return FALSE;
 276
 277     adapter->state_flags = DISPLAY_DEVICE_PRIMARY_DEVICE;
 278     if (desktop_width && desktop_height)
 279         adapter->state_flags |= DISPLAY_DEVICE_ATTACHED_TO_DESKTOP;
 280
 281     *new_adapters = adapter;
 282     *count = 1;
 283     return TRUE;
 284 }
 285
 286 static void X11DRV_desktop_free_adapters( struct gdi_adapter *adapters )
 287 {
 288     free( adapters );
 289 }
 290
 291 static BOOL X11DRV_desktop_get_monitors( ULONG_PTR adapter_id, struct gdi_monitor **new_monitors, int *count )
 292 {
 293     static const WCHAR generic_nonpnp_monitorW[] = {
 294         'G','e','n','e','r','i','c',' ',
 295         'N','o','n','-','P','n','P',' ','M','o','n','i','t','o','r',0};
 296     struct gdi_monitor *monitor;
 297
 298     monitor = calloc( 1, sizeof(*monitor) );
 299     if (!monitor) return FALSE;
 300
 301     lstrcpyW( monitor->name, generic_nonpnp_monitorW );
 302     SetRect( &monitor->rc_monitor, 0, 0, desktop_width, desktop_height );
 303     SetRect( &monitor->rc_work, 0, 0, desktop_width, desktop_height );
 304     query_desktop_work_area( &monitor->rc_work );
 305     monitor->state_flags = DISPLAY_DEVICE_ATTACHED;
 306     monitor->edid_len = 0;
 307     monitor->edid = NULL;
 308     if (desktop_width && desktop_height)
 309         monitor->state_flags |= DISPLAY_DEVICE_ACTIVE;
 310
 311     *new_monitors = monitor;
 312     *count = 1;
 313     return TRUE;
 314 }
 315
 316 static void X11DRV_desktop_free_monitors( struct gdi_monitor *monitors, int count )
 317 {
 318     free( monitors );
 319 }
 320
 321 /***********************************************************************
 322  *              X11DRV_init_desktop
 323  *
 324  * Setup the desktop when not using the root window.
 325  */
 326 void X11DRV_init_desktop( Window win, unsigned int width, unsigned int height )
 327 {
 328     RECT primary_rect = get_host_primary_monitor_rect();
 329     struct x11drv_settings_handler settings_handler;
 330
 331     root_window = win;
 332     managed_mode = FALSE;  /* no managed windows in desktop mode */
 333     desktop_width = width;
 334     desktop_height = height;
 335     max_width = primary_rect.right;
 336     max_height = primary_rect.bottom;
 337
 338     /* Initialize virtual desktop display settings handler */
 339     settings_handler.name = "Virtual Desktop";
 340     settings_handler.priority = 1000;
 341     settings_handler.get_id = X11DRV_desktop_get_id;
 342     settings_handler.get_modes = X11DRV_desktop_get_modes;
 343     settings_handler.free_modes = X11DRV_desktop_free_modes;
 344     settings_handler.get_current_mode = X11DRV_desktop_get_current_mode;
 345     settings_handler.set_current_mode = X11DRV_desktop_set_current_mode;
 346     X11DRV_Settings_SetHandler( &settings_handler );
 347
 348     /* Initialize virtual desktop mode display device handler */
 349     desktop_handler.name = "Virtual Desktop";
 350     desktop_handler.get_gpus = X11DRV_desktop_get_gpus;
 351     desktop_handler.get_adapters = X11DRV_desktop_get_adapters;
 352     desktop_handler.get_monitors = X11DRV_desktop_get_monitors;
 353     desktop_handler.free_gpus = X11DRV_desktop_free_gpus;
 354     desktop_handler.free_adapters = X11DRV_desktop_free_adapters;
 355     desktop_handler.free_monitors = X11DRV_desktop_free_monitors;
 356     desktop_handler.register_event_handlers = NULL;
 357     TRACE("Display device functions are now handled by: Virtual Desktop\n");
 358     X11DRV_DisplayDevices_Init( TRUE );
 359 }
 360
 361
 362 /***********************************************************************
 363  *           x11drv_create_desktop
 364  *
 365  * Create the X11 desktop window for the desktop mode.
 366  */
 367 NTSTATUS x11drv_create_desktop( void *arg )
 368 {
 369     static const WCHAR rootW[] = {'r','o','o','t',0};
 370     const struct create_desktop_params *params = arg;
 371     XSetWindowAttributes win_attr;
 372     Window win;
 373     Display *display = thread_init_display();
 374     WCHAR name[MAX_PATH];
 375
 376     if (!NtUserGetObjectInformation( NtUserGetThreadDesktop( GetCurrentThreadId() ),
 377                                      UOI_NAME, name, sizeof(name), NULL ))
 378         name[0] = 0;
 379
 380     TRACE( "%s %ux%u\n", debugstr_w(name), params->width, params->height );
 381
 382     /* magic: desktop "root" means use the root window */
 383     if (!wcsicmp( name, rootW )) return FALSE;
 384
 385     /* Create window */
 386     win_attr.event_mask = ExposureMask | KeyPressMask | KeyReleaseMask | EnterWindowMask |
 387                           PointerMotionMask | ButtonPressMask | ButtonReleaseMask | FocusChangeMask;
 388     win_attr.cursor = XCreateFontCursor( display, XC_top_left_arrow );
 389
 390     if (default_visual.visual != DefaultVisual( display, DefaultScreen(display) ))
 391         win_attr.colormap = XCreateColormap( display, DefaultRootWindow(display),
 392                                              default_visual.visual, AllocNone );
 393     else
 394         win_attr.colormap = None;
 395
 396     win = XCreateWindow( display, DefaultRootWindow(display),
 397                          0, 0, params->width, params->height, 0, default_visual.depth, InputOutput,
 398                          default_visual.visual, CWEventMask | CWCursor | CWColormap, &win_attr );
 399     if (!win) return FALSE;
 400     if (!create_desktop_win_data( win )) return FALSE;
 401
 402     X11DRV_init_desktop( win, params->width, params->height );
 403     if (is_desktop_fullscreen())
 404     {
 405         TRACE("setting desktop to fullscreen\n");
 406         XChangeProperty( display, win, x11drv_atom(_NET_WM_STATE), XA_ATOM, 32,
 407             PropModeReplace, (unsigned char*)&x11drv_atom(_NET_WM_STATE_FULLSCREEN),
 408             1);
 409     }
 410     XFlush( display );
 411     return TRUE;
 412 }
 413
 414 BOOL is_desktop_fullscreen(void)
 415 {
 416     RECT primary_rect = NtUserGetPrimaryMonitorRect();
 417     return (primary_rect.right - primary_rect.left == max_width &&
 418             primary_rect.bottom - primary_rect.top == max_height);
 419 }
 420
 421 static void update_desktop_fullscreen( unsigned int width, unsigned int height)
 422 {
 423     Display *display = thread_display();
 424     XEvent xev;
 425
 426     if (!display || !is_virtual_desktop()) return;
 427
 428     xev.xclient.type = ClientMessage;
 429     xev.xclient.window = root_window;
 430     xev.xclient.message_type = x11drv_atom(_NET_WM_STATE);
 431     xev.xclient.serial = 0;
 432     xev.xclient.display = display;
 433     xev.xclient.send_event = True;
 434     xev.xclient.format = 32;
 435     if (width == max_width && height == max_height)
 436         xev.xclient.data.l[0] = _NET_WM_STATE_ADD;
 437     else
 438         xev.xclient.data.l[0] = _NET_WM_STATE_REMOVE;
 439     xev.xclient.data.l[1] = x11drv_atom(_NET_WM_STATE_FULLSCREEN);
 440     xev.xclient.data.l[2] = 0;
 441     xev.xclient.data.l[3] = 1;
 442
 443     TRACE("action=%li\n", xev.xclient.data.l[0]);
 444
 445     XSendEvent( display, DefaultRootWindow(display), False,
 446                 SubstructureRedirectMask | SubstructureNotifyMask, &xev );
 447
 448     xev.xclient.data.l[1] = x11drv_atom(_NET_WM_STATE_MAXIMIZED_VERT);
 449     xev.xclient.data.l[2] = x11drv_atom(_NET_WM_STATE_MAXIMIZED_HORZ);
 450     XSendEvent( display, DefaultRootWindow(display), False,
 451                 SubstructureRedirectMask | SubstructureNotifyMask, &xev );
 452 }
 453
 454 /***********************************************************************
 455  *              X11DRV_resize_desktop
 456  */
 457 void X11DRV_resize_desktop(void)
 458 {
 459     RECT primary_rect, virtual_rect;
 460     HWND hwnd = NtUserGetDesktopWindow();
 461     INT width, height;
 462
 463     virtual_rect = NtUserGetVirtualScreenRect();
 464     primary_rect = NtUserGetPrimaryMonitorRect();
 465     width = primary_rect.right;
 466     height = primary_rect.bottom;
 467
 468     if (NtUserGetWindowThread( hwnd, NULL ) != GetCurrentThreadId())
 469     {
 470         send_message( hwnd, WM_X11DRV_RESIZE_DESKTOP, 0, 0 );
 471     }
 472     else
 473     {
 474         TRACE( "desktop %p change to (%dx%d)\n", hwnd, width, height );
 475         update_desktop_fullscreen( width, height );
 476         NtUserSetWindowPos( hwnd, 0, virtual_rect.left, virtual_rect.top,
 477                             virtual_rect.right - virtual_rect.left, virtual_rect.bottom - virtual_rect.top,
 478                             SWP_NOZORDER | SWP_NOACTIVATE | SWP_DEFERERASE );
 479         ungrab_clipping_window();
 480     }
 481 }