dlls/winex11.drv/display.c

   1 /*
   2  * X11DRV display device functions
   3  *
   4  * Copyright 2019 Zhiyi Zhang for CodeWeavers
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdarg.h>
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winuser.h"
  28 #include "rpc.h"
  29 #include "winreg.h"
  30 #include "initguid.h"
  31 #include "devguid.h"
  32 #include "devpkey.h"
  33 #include "setupapi.h"
  34 #define WIN32_NO_STATUS
  35 #include "winternl.h"
  36 #include "wine/debug.h"
  37 #include "wine/unicode.h"
  38 #include "x11drv.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(x11drv);
  41
  42 DEFINE_DEVPROPKEY(DEVPROPKEY_GPU_LUID, 0x60b193cb, 0x5276, 0x4d0f, 0x96, 0xfc, 0xf1, 0x73, 0xab, 0xad, 0x3e, 0xc6, 2);
  43 DEFINE_DEVPROPKEY(DEVPROPKEY_MONITOR_GPU_LUID, 0xca085853, 0x16ce, 0x48aa, 0xb1, 0x14, 0xde, 0x9c, 0x72, 0x33, 0x42, 0x23, 1);
  44 DEFINE_DEVPROPKEY(DEVPROPKEY_MONITOR_OUTPUT_ID, 0xca085853, 0x16ce, 0x48aa, 0xb1, 0x14, 0xde, 0x9c, 0x72, 0x33, 0x42, 0x23, 2);
  45
  46 /* Wine specific properties */
  47 DEFINE_DEVPROPKEY(WINE_DEVPROPKEY_GPU_VULKAN_UUID, 0x233a9ef3, 0xafc4, 0x4abd, 0xb5, 0x64, 0xc3, 0x2f, 0x21, 0xf1, 0x53, 0x5c, 2);
  48 DEFINE_DEVPROPKEY(WINE_DEVPROPKEY_MONITOR_STATEFLAGS, 0x233a9ef3, 0xafc4, 0x4abd, 0xb5, 0x64, 0xc3, 0x2f, 0x21, 0xf1, 0x53, 0x5b, 2);
  49 DEFINE_DEVPROPKEY(WINE_DEVPROPKEY_MONITOR_RCMONITOR, 0x233a9ef3, 0xafc4, 0x4abd, 0xb5, 0x64, 0xc3, 0x2f, 0x21, 0xf1, 0x53, 0x5b, 3);
  50 DEFINE_DEVPROPKEY(WINE_DEVPROPKEY_MONITOR_RCWORK, 0x233a9ef3, 0xafc4, 0x4abd, 0xb5, 0x64, 0xc3, 0x2f, 0x21, 0xf1, 0x53, 0x5b, 4);
  51 DEFINE_DEVPROPKEY(WINE_DEVPROPKEY_MONITOR_ADAPTERNAME, 0x233a9ef3, 0xafc4, 0x4abd, 0xb5, 0x64, 0xc3, 0x2f, 0x21, 0xf1, 0x53, 0x5b, 5);
  52
  53 static const WCHAR driver_date_dataW[] = {'D','r','i','v','e','r','D','a','t','e','D','a','t','a',0};
  54 static const WCHAR driver_descW[] = {'D','r','i','v','e','r','D','e','s','c',0};
  55 static const WCHAR displayW[] = {'D','I','S','P','L','A','Y',0};
  56 static const WCHAR pciW[] = {'P','C','I',0};
  57 static const WCHAR video_idW[] = {'V','i','d','e','o','I','D',0};
  58 static const WCHAR symbolic_link_valueW[]= {'S','y','m','b','o','l','i','c','L','i','n','k','V','a','l','u','e',0};
  59 static const WCHAR gpu_idW[] = {'G','P','U','I','D',0};
  60 static const WCHAR mointor_id_fmtW[] = {'M','o','n','i','t','o','r','I','D','%','d',0};
  61 static const WCHAR adapter_name_fmtW[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','%','d',0};
  62 static const WCHAR state_flagsW[] = {'S','t','a','t','e','F','l','a','g','s',0};
  63 static const WCHAR guid_fmtW[] = {
  64     '{','%','0','8','x','-','%','0','4','x','-','%','0','4','x','-','%','0','2','x','%','0','2','x','-',
  65     '%','0','2','x','%','0','2','x','%','0','2','x','%','0','2','x','%','0','2','x','%','0','2','x','}',0};
  66 static const WCHAR gpu_instance_fmtW[] = {
  67     'P','C','I','\\',
  68     'V','E','N','_','%','0','4','X','&',
  69     'D','E','V','_','%','0','4','X','&',
  70     'S','U','B','S','Y','S','_','%','0','8','X','&',
  71     'R','E','V','_','%','0','2','X','\\',
  72     '%','0','8','X',0};
  73 static const WCHAR gpu_hardware_id_fmtW[] = {
  74     'P','C','I','\\',
  75     'V','E','N','_','%','0','4','X','&',
  76     'D','E','V','_','%','0','4','X','&',
  77     'S','U','B','S','Y','S','_','0','0','0','0','0','0','0','0','&',
  78     'R','E','V','_','0','0',0};
  79 static const WCHAR video_keyW[] = {
  80     'H','A','R','D','W','A','R','E','\\',
  81     'D','E','V','I','C','E','M','A','P','\\',
  82     'V','I','D','E','O',0};
  83 static const WCHAR adapter_key_fmtW[] = {
  84     'S','y','s','t','e','m','\\',
  85     'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
  86     'C','o','n','t','r','o','l','\\',
  87     'V','i','d','e','o','\\',
  88     '%','s','\\',
  89     '%','0','4','x',0};
  90 static const WCHAR device_video_fmtW[] = {
  91     '\\','D','e','v','i','c','e','\\',
  92     'V','i','d','e','o','%','d',0};
  93 static const WCHAR machine_prefixW[] = {
  94     '\\','R','e','g','i','s','t','r','y','\\',
  95     'M','a','c','h','i','n','e','\\',0};
  96 static const WCHAR nt_classW[] = {
  97     '\\','R','e','g','i','s','t','r','y','\\',
  98     'M','a','c','h','i','n','e','\\',
  99     'S','y','s','t','e','m','\\',
 100     'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
 101     'C','o','n','t','r','o','l','\\',
 102     'C','l','a','s','s','\\',0};
 103 static const WCHAR monitor_instance_fmtW[] = {
 104     'D','I','S','P','L','A','Y','\\',
 105     'D','e','f','a','u','l','t','_','M','o','n','i','t','o','r','\\',
 106     '%','0','4','X','&','%','0','4','X',0};
 107 static const WCHAR monitor_hardware_idW[] = {
 108     'M','O','N','I','T','O','R','\\',
 109     'D','e','f','a','u','l','t','_','M','o','n','i','t','o','r',0,0};
 110
 111 static struct x11drv_display_device_handler host_handler;
 112 struct x11drv_display_device_handler desktop_handler;
 113
 114 /* Cached screen information, protected by screen_section */
 115 static HKEY video_key;
 116 static RECT virtual_screen_rect;
 117 static RECT primary_monitor_rect;
 118 static FILETIME last_query_screen_time;
 119 static CRITICAL_SECTION screen_section;
 120 static CRITICAL_SECTION_DEBUG screen_critsect_debug =
 121 {
 122     0, 0, &screen_section,
 123     {&screen_critsect_debug.ProcessLocksList, &screen_critsect_debug.ProcessLocksList},
 124      0, 0, {(DWORD_PTR)(__FILE__ ": screen_section")}
 125 };
 126 static CRITICAL_SECTION screen_section = {&screen_critsect_debug, -1, 0, 0, 0, 0};
 127
 128 HANDLE get_display_device_init_mutex(void)
 129 {
 130     static const WCHAR init_mutexW[] = {'d','i','s','p','l','a','y','_','d','e','v','i','c','e','_','i','n','i','t',0};
 131     HANDLE mutex = CreateMutexW(NULL, FALSE, init_mutexW);
 132
 133     WaitForSingleObject(mutex, INFINITE);
 134     return mutex;
 135 }
 136
 137 void release_display_device_init_mutex(HANDLE mutex)
 138 {
 139     ReleaseMutex(mutex);
 140     CloseHandle(mutex);
 141 }
 142
 143 /* Update screen rectangle cache from SetupAPI if it's outdated, return FALSE on failure and TRUE on success */
 144 static BOOL update_screen_cache(void)
 145 {
 146     RECT virtual_rect = {0}, primary_rect = {0}, monitor_rect;
 147     SP_DEVINFO_DATA device_data = {sizeof(device_data)};
 148     HDEVINFO devinfo = INVALID_HANDLE_VALUE;
 149     FILETIME filetime = {0};
 150     HANDLE mutex = NULL;
 151     DWORD i = 0;
 152     INT result;
 153     DWORD type;
 154     BOOL ret = FALSE;
 155
 156     EnterCriticalSection(&screen_section);
 157     if ((!video_key && RegOpenKeyW(HKEY_LOCAL_MACHINE, video_keyW, &video_key))
 158         || RegQueryInfoKeyW(video_key, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, &filetime))
 159     {
 160         LeaveCriticalSection(&screen_section);
 161         return FALSE;
 162     }
 163     result = CompareFileTime(&filetime, &last_query_screen_time);
 164     LeaveCriticalSection(&screen_section);
 165     if (result < 1)
 166         return TRUE;
 167
 168     mutex = get_display_device_init_mutex();
 169
 170     devinfo = SetupDiGetClassDevsW(&GUID_DEVCLASS_MONITOR, displayW, NULL, DIGCF_PRESENT);
 171     if (devinfo == INVALID_HANDLE_VALUE)
 172         goto fail;
 173
 174     while (SetupDiEnumDeviceInfo(devinfo, i++, &device_data))
 175     {
 176         if (!SetupDiGetDevicePropertyW(devinfo, &device_data, &WINE_DEVPROPKEY_MONITOR_RCMONITOR, &type,
 177                                        (BYTE *)&monitor_rect, sizeof(monitor_rect), NULL, 0))
 178             goto fail;
 179
 180         UnionRect(&virtual_rect, &virtual_rect, &monitor_rect);
 181         if (i == 1)
 182             primary_rect = monitor_rect;
 183     }
 184
 185     EnterCriticalSection(&screen_section);
 186     virtual_screen_rect = virtual_rect;
 187     primary_monitor_rect = primary_rect;
 188     last_query_screen_time = filetime;
 189     LeaveCriticalSection(&screen_section);
 190     ret = TRUE;
 191 fail:
 192     SetupDiDestroyDeviceInfoList(devinfo);
 193     release_display_device_init_mutex(mutex);
 194     if (!ret)
 195         WARN("Update screen cache failed!\n");
 196     return ret;
 197 }
 198
 199 POINT virtual_screen_to_root(INT x, INT y)
 200 {
 201     RECT virtual = get_virtual_screen_rect();
 202     POINT pt;
 203
 204     pt.x = x - virtual.left;
 205     pt.y = y - virtual.top;
 206     return pt;
 207 }
 208
 209 POINT root_to_virtual_screen(INT x, INT y)
 210 {
 211     RECT virtual = get_virtual_screen_rect();
 212     POINT pt;
 213
 214     pt.x = x + virtual.left;
 215     pt.y = y + virtual.top;
 216     return pt;
 217 }
 218
 219 RECT get_virtual_screen_rect(void)
 220 {
 221     RECT virtual;
 222
 223     update_screen_cache();
 224     EnterCriticalSection(&screen_section);
 225     virtual = virtual_screen_rect;
 226     LeaveCriticalSection(&screen_section);
 227     return virtual;
 228 }
 229
 230 RECT get_primary_monitor_rect(void)
 231 {
 232     RECT primary;
 233
 234     update_screen_cache();
 235     EnterCriticalSection(&screen_section);
 236     primary = primary_monitor_rect;
 237     LeaveCriticalSection(&screen_section);
 238     return primary;
 239 }
 240
 241 /* Get the primary monitor rect from the host system */
 242 RECT get_host_primary_monitor_rect(void)
 243 {
 244     INT gpu_count, adapter_count, monitor_count;
 245     struct x11drv_gpu *gpus = NULL;
 246     struct x11drv_adapter *adapters = NULL;
 247     struct x11drv_monitor *monitors = NULL;
 248     RECT rect = {0};
 249
 250     /* The first monitor is always primary */
 251     if (host_handler.get_gpus(&gpus, &gpu_count) && gpu_count &&
 252         host_handler.get_adapters(gpus[0].id, &adapters, &adapter_count) && adapter_count &&
 253         host_handler.get_monitors(adapters[0].id, &monitors, &monitor_count) && monitor_count)
 254         rect = monitors[0].rc_monitor;
 255
 256     if (gpus) host_handler.free_gpus(gpus);
 257     if (adapters) host_handler.free_adapters(adapters);
 258     if (monitors) host_handler.free_monitors(monitors);
 259     return rect;
 260 }
 261
 262 RECT get_work_area(const RECT *monitor_rect)
 263 {
 264     Atom type;
 265     int format;
 266     unsigned long count, remaining, i;
 267     long *work_area;
 268     RECT work_rect;
 269
 270     /* Try _GTK_WORKAREAS first as _NET_WORKAREA may be incorrect on multi-monitor systems */
 271     if (!XGetWindowProperty(gdi_display, DefaultRootWindow(gdi_display),
 272                             x11drv_atom(_GTK_WORKAREAS_D0), 0, ~0, False, XA_CARDINAL, &type,
 273                             &format, &count, &remaining, (unsigned char **)&work_area))
 274     {
 275         if (type == XA_CARDINAL && format == 32 && count >= 4)
 276         {
 277             for (i = 0; i + 3 < count; i += 4)
 278             {
 279                 work_rect.left = work_area[i * 4];
 280                 work_rect.top = work_area[i * 4 + 1];
 281                 work_rect.right = work_rect.left + work_area[i * 4 + 2];
 282                 work_rect.bottom = work_rect.top + work_area[i * 4 + 3];
 283
 284                 if (IntersectRect(&work_rect, &work_rect, monitor_rect))
 285                 {
 286                     TRACE("work_rect:%s.\n", wine_dbgstr_rect(&work_rect));
 287                     XFree(work_area);
 288                     return work_rect;
 289                 }
 290             }
 291         }
 292         XFree(work_area);
 293     }
 294
 295     WARN("_GTK_WORKAREAS is not supported, fallback to _NET_WORKAREA. "
 296          "Work areas may be incorrect on multi-monitor systems.\n");
 297     if (!XGetWindowProperty(gdi_display, DefaultRootWindow(gdi_display), x11drv_atom(_NET_WORKAREA),
 298                             0, ~0, False, XA_CARDINAL, &type, &format, &count, &remaining,
 299                             (unsigned char **)&work_area))
 300     {
 301         if (type == XA_CARDINAL && format == 32 && count >= 4)
 302         {
 303             SetRect(&work_rect, work_area[0], work_area[1], work_area[0] + work_area[2],
 304                     work_area[1] + work_area[3]);
 305
 306             if (IntersectRect(&work_rect, &work_rect, monitor_rect))
 307             {
 308                 TRACE("work_rect:%s.\n", wine_dbgstr_rect(&work_rect));
 309                 XFree(work_area);
 310                 return work_rect;
 311             }
 312         }
 313         XFree(work_area);
 314     }
 315
 316     WARN("_NET_WORKAREA is not supported, Work areas may be incorrect.\n");
 317     TRACE("work_rect:%s.\n", wine_dbgstr_rect(monitor_rect));
 318     return *monitor_rect;
 319 }
 320
 321 void X11DRV_DisplayDevices_SetHandler(const struct x11drv_display_device_handler *new_handler)
 322 {
 323     if (new_handler->priority > host_handler.priority)
 324     {
 325         host_handler = *new_handler;
 326         TRACE("Display device functions are now handled by: %s\n", host_handler.name);
 327     }
 328 }
 329
 330 void X11DRV_DisplayDevices_RegisterEventHandlers(void)
 331 {
 332     struct x11drv_display_device_handler *handler = is_virtual_desktop() ? &desktop_handler : &host_handler;
 333
 334     if (handler->register_event_handlers)
 335         handler->register_event_handlers();
 336 }
 337
 338 static BOOL CALLBACK update_windows_on_display_change(HWND hwnd, LPARAM lparam)
 339 {
 340     struct x11drv_win_data *data;
 341     UINT mask = (UINT)lparam;
 342
 343     if (!(data = get_win_data(hwnd)))
 344         return TRUE;
 345
 346     /* update the full screen state */
 347     update_net_wm_states(data);
 348
 349     if (mask && data->whole_window)
 350     {
 351         POINT pos = virtual_screen_to_root(data->whole_rect.left, data->whole_rect.top);
 352         XWindowChanges changes;
 353         changes.x = pos.x;
 354         changes.y = pos.y;
 355         XReconfigureWMWindow(data->display, data->whole_window, data->vis.screen, mask, &changes);
 356     }
 357     release_win_data(data);
 358     if (hwnd == GetForegroundWindow())
 359         clip_fullscreen_window(hwnd, TRUE);
 360     return TRUE;
 361 }
 362
 363 void X11DRV_DisplayDevices_Update(BOOL send_display_change)
 364 {
 365     RECT old_virtual_rect, new_virtual_rect;
 366     UINT mask = 0;
 367
 368     old_virtual_rect = get_virtual_screen_rect();
 369     X11DRV_DisplayDevices_Init(TRUE);
 370     new_virtual_rect = get_virtual_screen_rect();
 371
 372     /* Calculate XReconfigureWMWindow() mask */
 373     if (old_virtual_rect.left != new_virtual_rect.left)
 374         mask |= CWX;
 375     if (old_virtual_rect.top != new_virtual_rect.top)
 376         mask |= CWY;
 377
 378     X11DRV_resize_desktop(send_display_change);
 379     EnumWindows(update_windows_on_display_change, (LPARAM)mask);
 380 }
 381
 382 /* Initialize a GPU instance.
 383  * Return its GUID string in guid_string, driver value in driver parameter and LUID in gpu_luid */
 384 static BOOL X11DRV_InitGpu(HDEVINFO devinfo, const struct x11drv_gpu *gpu, INT gpu_index, WCHAR *guid_string,
 385                            WCHAR *driver, LUID *gpu_luid)
 386 {
 387     static const BOOL present = TRUE;
 388     SP_DEVINFO_DATA device_data = {sizeof(device_data)};
 389     WCHAR instanceW[MAX_PATH];
 390     DEVPROPTYPE property_type;
 391     WCHAR bufferW[1024];
 392     HKEY hkey = NULL;
 393     GUID guid;
 394     LUID luid;
 395     INT written;
 396     DWORD size;
 397     BOOL ret = FALSE;
 398     FILETIME filetime;
 399
 400     TRACE("GPU id:0x%s name:%s.\n", wine_dbgstr_longlong(gpu->id), wine_dbgstr_w(gpu->name));
 401
 402     sprintfW(instanceW, gpu_instance_fmtW, gpu->vendor_id, gpu->device_id, gpu->subsys_id, gpu->revision_id, gpu_index);
 403     if (!SetupDiOpenDeviceInfoW(devinfo, instanceW, NULL, 0, &device_data))
 404     {
 405         SetupDiCreateDeviceInfoW(devinfo, instanceW, &GUID_DEVCLASS_DISPLAY, gpu->name, NULL, 0, &device_data);
 406         if (!SetupDiRegisterDeviceInfo(devinfo, &device_data, 0, NULL, NULL, NULL))
 407             goto done;
 408     }
 409
 410     /* Write HardwareID registry property, REG_MULTI_SZ */
 411     written = sprintfW(bufferW, gpu_hardware_id_fmtW, gpu->vendor_id, gpu->device_id);
 412     bufferW[written + 1] = 0;
 413     if (!SetupDiSetDeviceRegistryPropertyW(devinfo, &device_data, SPDRP_HARDWAREID, (const BYTE *)bufferW,
 414                                            (written + 2) * sizeof(WCHAR)))
 415         goto done;
 416
 417     /* Write DEVPKEY_Device_IsPresent property */
 418     if (!SetupDiSetDevicePropertyW(devinfo, &device_data, &DEVPKEY_Device_IsPresent, DEVPROP_TYPE_BOOLEAN,
 419                                    (const BYTE *)&present, sizeof(present), 0))
 420         goto done;
 421
 422     /* Write DEVPROPKEY_GPU_LUID property */
 423     if (!SetupDiGetDevicePropertyW(devinfo, &device_data, &DEVPROPKEY_GPU_LUID, &property_type,
 424                                    (BYTE *)&luid, sizeof(luid), NULL, 0))
 425     {
 426         if (!AllocateLocallyUniqueId(&luid))
 427             goto done;
 428
 429         if (!SetupDiSetDevicePropertyW(devinfo, &device_data, &DEVPROPKEY_GPU_LUID,
 430                                        DEVPROP_TYPE_UINT64, (const BYTE *)&luid, sizeof(luid), 0))
 431             goto done;
 432     }
 433     *gpu_luid = luid;
 434     TRACE("LUID:%08x:%08x.\n", luid.HighPart, luid.LowPart);
 435
 436     /* Write WINE_DEVPROPKEY_GPU_VULKAN_UUID property */
 437     if (!SetupDiSetDevicePropertyW(devinfo, &device_data, &WINE_DEVPROPKEY_GPU_VULKAN_UUID,
 438                                    DEVPROP_TYPE_GUID, (const BYTE *)&gpu->vulkan_uuid,
 439                                    sizeof(gpu->vulkan_uuid), 0))
 440         goto done;
 441     TRACE("Vulkan UUID:%s.\n", wine_dbgstr_guid(&gpu->vulkan_uuid));
 442
 443     /* Open driver key.
 444      * This is where HKLM\System\CurrentControlSet\Control\Video\{GPU GUID}\{Adapter Index} links to */
 445     hkey = SetupDiCreateDevRegKeyW(devinfo, &device_data, DICS_FLAG_GLOBAL, 0, DIREG_DRV, NULL, NULL);
 446
 447     /* Write DriverDesc value */
 448     if (RegSetValueExW(hkey, driver_descW, 0, REG_SZ, (const BYTE *)gpu->name,
 449                        (strlenW(gpu->name) + 1) * sizeof(WCHAR)))
 450         goto done;
 451     /* Write DriverDateData value, using current time as driver date, needed by Evoland */
 452     GetSystemTimeAsFileTime(&filetime);
 453     if (RegSetValueExW(hkey, driver_date_dataW, 0, REG_BINARY, (BYTE *)&filetime, sizeof(filetime)))
 454         goto done;
 455
 456     RegCloseKey(hkey);
 457
 458     /* Retrieve driver value for adapters */
 459     if (!SetupDiGetDeviceRegistryPropertyW(devinfo, &device_data, SPDRP_DRIVER, NULL, (BYTE *)bufferW, sizeof(bufferW),
 460                                            NULL))
 461         goto done;
 462     lstrcpyW(driver, nt_classW);
 463     lstrcatW(driver, bufferW);
 464
 465     /* Write GUID in VideoID in .../instance/Device Parameters, reuse the GUID if it's existent */
 466     hkey = SetupDiCreateDevRegKeyW(devinfo, &device_data, DICS_FLAG_GLOBAL, 0, DIREG_DEV, NULL, NULL);
 467
 468     size = sizeof(bufferW);
 469     if (RegQueryValueExW(hkey, video_idW, 0, NULL, (BYTE *)bufferW, &size))
 470     {
 471         UuidCreate(&guid);
 472         sprintfW(bufferW, guid_fmtW, guid.Data1, guid.Data2, guid.Data3, guid.Data4[0], guid.Data4[1], guid.Data4[2],
 473                  guid.Data4[3], guid.Data4[4], guid.Data4[5], guid.Data4[6], guid.Data4[7]);
 474         if (RegSetValueExW(hkey, video_idW, 0, REG_SZ, (const BYTE *)bufferW, (strlenW(bufferW) + 1) * sizeof(WCHAR)))
 475             goto done;
 476     }
 477     lstrcpyW(guid_string, bufferW);
 478
 479     ret = TRUE;
 480 done:
 481     RegCloseKey(hkey);
 482     if (!ret)
 483         ERR("Failed to initialize GPU\n");
 484     return ret;
 485 }
 486
 487 static BOOL X11DRV_InitAdapter(HKEY video_hkey, INT video_index, INT gpu_index, INT adapter_index, INT monitor_count,
 488                                const struct x11drv_gpu *gpu, const WCHAR *guid_string,
 489                                const WCHAR *gpu_driver, const struct x11drv_adapter *adapter)
 490 {
 491     WCHAR adapter_keyW[MAX_PATH];
 492     WCHAR key_nameW[MAX_PATH];
 493     WCHAR bufferW[1024];
 494     HKEY hkey = NULL;
 495     BOOL ret = FALSE;
 496     LSTATUS ls;
 497     INT i;
 498
 499     sprintfW(key_nameW, device_video_fmtW, video_index);
 500     lstrcpyW(bufferW, machine_prefixW);
 501     sprintfW(adapter_keyW, adapter_key_fmtW, guid_string, adapter_index);
 502     lstrcatW(bufferW, adapter_keyW);
 503
 504     /* Write value of \Device\Video? (adapter key) in HKLM\HARDWARE\DEVICEMAP\VIDEO\ */
 505     if (RegSetValueExW(video_hkey, key_nameW, 0, REG_SZ, (const BYTE *)bufferW, (strlenW(bufferW) + 1) * sizeof(WCHAR)))
 506         goto done;
 507
 508     /* Create HKLM\System\CurrentControlSet\Control\Video\{GPU GUID}\{Adapter Index} link to GPU driver */
 509     ls = RegCreateKeyExW(HKEY_LOCAL_MACHINE, adapter_keyW, 0, NULL, REG_OPTION_VOLATILE | REG_OPTION_CREATE_LINK,
 510                          KEY_ALL_ACCESS, NULL, &hkey, NULL);
 511     if (ls == ERROR_ALREADY_EXISTS)
 512         RegCreateKeyExW(HKEY_LOCAL_MACHINE, adapter_keyW, 0, NULL, REG_OPTION_VOLATILE | REG_OPTION_OPEN_LINK,
 513                         KEY_ALL_ACCESS, NULL, &hkey, NULL);
 514     if (RegSetValueExW(hkey, symbolic_link_valueW, 0, REG_LINK, (const BYTE *)gpu_driver,
 515                        strlenW(gpu_driver) * sizeof(WCHAR)))
 516         goto done;
 517     RegCloseKey(hkey);
 518     hkey = NULL;
 519
 520     /* FIXME:
 521      * Following information is Wine specific, it doesn't really exist on Windows. It is used so that we can
 522      * implement EnumDisplayDevices etc by querying registry only. This information is most likely reported by the
 523      * device driver on Windows */
 524     RegCreateKeyExW(HKEY_CURRENT_CONFIG, adapter_keyW, 0, NULL, REG_OPTION_VOLATILE, KEY_WRITE, NULL, &hkey, NULL);
 525
 526     /* Write GPU instance path so that we can find the GPU instance via adapters quickly. Another way is trying to match
 527      * them via the GUID in Device Parameters/VideoID, but it would require enumerating all GPU instances */
 528     sprintfW(bufferW, gpu_instance_fmtW, gpu->vendor_id, gpu->device_id, gpu->subsys_id, gpu->revision_id, gpu_index);
 529     if (RegSetValueExW(hkey, gpu_idW, 0, REG_SZ, (const BYTE *)bufferW, (strlenW(bufferW) + 1) * sizeof(WCHAR)))
 530         goto done;
 531
 532     /* Write all monitor instances paths under this adapter */
 533     for (i = 0; i < monitor_count; i++)
 534     {
 535         sprintfW(key_nameW, mointor_id_fmtW, i);
 536         sprintfW(bufferW, monitor_instance_fmtW, video_index, i);
 537         if (RegSetValueExW(hkey, key_nameW, 0, REG_SZ, (const BYTE *)bufferW, (strlenW(bufferW) + 1) * sizeof(WCHAR)))
 538             goto done;
 539     }
 540
 541     /* Write StateFlags */
 542     if (RegSetValueExW(hkey, state_flagsW, 0, REG_DWORD, (const BYTE *)&adapter->state_flags,
 543                        sizeof(adapter->state_flags)))
 544         goto done;
 545
 546     ret = TRUE;
 547 done:
 548     RegCloseKey(hkey);
 549     if (!ret)
 550         ERR("Failed to initialize adapter\n");
 551     return ret;
 552 }
 553
 554 static BOOL X11DRV_InitMonitor(HDEVINFO devinfo, const struct x11drv_monitor *monitor, int monitor_index,
 555                                int video_index, const LUID *gpu_luid, UINT output_id)
 556 {
 557     SP_DEVINFO_DATA device_data = {sizeof(SP_DEVINFO_DATA)};
 558     WCHAR bufferW[MAX_PATH];
 559     HKEY hkey;
 560     BOOL ret = FALSE;
 561
 562     /* Create GUID_DEVCLASS_MONITOR instance */
 563     sprintfW(bufferW, monitor_instance_fmtW, video_index, monitor_index);
 564     SetupDiCreateDeviceInfoW(devinfo, bufferW, &GUID_DEVCLASS_MONITOR, monitor->name, NULL, 0, &device_data);
 565     if (!SetupDiRegisterDeviceInfo(devinfo, &device_data, 0, NULL, NULL, NULL))
 566         goto done;
 567
 568     /* Write HardwareID registry property */
 569     if (!SetupDiSetDeviceRegistryPropertyW(devinfo, &device_data, SPDRP_HARDWAREID,
 570                                            (const BYTE *)monitor_hardware_idW, sizeof(monitor_hardware_idW)))
 571         goto done;
 572
 573     /* Write DEVPROPKEY_MONITOR_GPU_LUID */
 574     if (!SetupDiSetDevicePropertyW(devinfo, &device_data, &DEVPROPKEY_MONITOR_GPU_LUID,
 575                                    DEVPROP_TYPE_INT64, (const BYTE *)gpu_luid, sizeof(*gpu_luid), 0))
 576         goto done;
 577
 578     /* Write DEVPROPKEY_MONITOR_OUTPUT_ID */
 579     if (!SetupDiSetDevicePropertyW(devinfo, &device_data, &DEVPROPKEY_MONITOR_OUTPUT_ID,
 580                                    DEVPROP_TYPE_UINT32, (const BYTE *)&output_id, sizeof(output_id), 0))
 581         goto done;
 582
 583     /* Create driver key */
 584     hkey = SetupDiCreateDevRegKeyW(devinfo, &device_data, DICS_FLAG_GLOBAL, 0, DIREG_DRV, NULL, NULL);
 585     RegCloseKey(hkey);
 586
 587     /* FIXME:
 588      * Following properties are Wine specific, see comments in X11DRV_InitAdapter for details */
 589     /* StateFlags */
 590     if (!SetupDiSetDevicePropertyW(devinfo, &device_data, &WINE_DEVPROPKEY_MONITOR_STATEFLAGS, DEVPROP_TYPE_UINT32,
 591                                    (const BYTE *)&monitor->state_flags, sizeof(monitor->state_flags), 0))
 592         goto done;
 593     /* RcMonitor */
 594     if (!SetupDiSetDevicePropertyW(devinfo, &device_data, &WINE_DEVPROPKEY_MONITOR_RCMONITOR, DEVPROP_TYPE_BINARY,
 595                                    (const BYTE *)&monitor->rc_monitor, sizeof(monitor->rc_monitor), 0))
 596         goto done;
 597     /* RcWork */
 598     if (!SetupDiSetDevicePropertyW(devinfo, &device_data, &WINE_DEVPROPKEY_MONITOR_RCWORK, DEVPROP_TYPE_BINARY,
 599                                    (const BYTE *)&monitor->rc_work, sizeof(monitor->rc_work), 0))
 600         goto done;
 601     /* Adapter name */
 602     sprintfW(bufferW, adapter_name_fmtW, video_index + 1);
 603     if (!SetupDiSetDevicePropertyW(devinfo, &device_data, &WINE_DEVPROPKEY_MONITOR_ADAPTERNAME, DEVPROP_TYPE_STRING,
 604                                    (const BYTE *)bufferW, (strlenW(bufferW) + 1) * sizeof(WCHAR), 0))
 605         goto done;
 606
 607     ret = TRUE;
 608 done:
 609     if (!ret)
 610         ERR("Failed to initialize monitor\n");
 611     return ret;
 612 }
 613
 614 static void prepare_devices(HKEY video_hkey)
 615 {
 616     static const BOOL not_present = FALSE;
 617     SP_DEVINFO_DATA device_data = {sizeof(device_data)};
 618     HDEVINFO devinfo;
 619     DWORD i = 0;
 620
 621     /* Remove all monitors */
 622     devinfo = SetupDiGetClassDevsW(&GUID_DEVCLASS_MONITOR, displayW, NULL, 0);
 623     while (SetupDiEnumDeviceInfo(devinfo, i++, &device_data))
 624     {
 625         if (!SetupDiRemoveDevice(devinfo, &device_data))
 626             ERR("Failed to remove monitor\n");
 627     }
 628     SetupDiDestroyDeviceInfoList(devinfo);
 629
 630     /* Clean up old adapter keys for reinitialization */
 631     RegDeleteTreeW(video_hkey, NULL);
 632
 633     /* FIXME:
 634      * Currently SetupDiGetClassDevsW with DIGCF_PRESENT is unsupported, So we need to clean up not present devices in
 635      * case application uses SetupDiGetClassDevsW to enumerate devices. Wrong devices could exist in registry as a result
 636      * of prefix copying or having devices unplugged. But then we couldn't simply delete GPUs because we need to retain
 637      * the same GUID for the same GPU. */
 638     i = 0;
 639     devinfo = SetupDiGetClassDevsW(&GUID_DEVCLASS_DISPLAY, pciW, NULL, 0);
 640     while (SetupDiEnumDeviceInfo(devinfo, i++, &device_data))
 641     {
 642         if (!SetupDiSetDevicePropertyW(devinfo, &device_data, &DEVPKEY_Device_IsPresent, DEVPROP_TYPE_BOOLEAN,
 643                                        (const BYTE *)&not_present, sizeof(not_present), 0))
 644             ERR("Failed to set GPU present property\n");
 645     }
 646     SetupDiDestroyDeviceInfoList(devinfo);
 647 }
 648
 649 static void cleanup_devices(void)
 650 {
 651     SP_DEVINFO_DATA device_data = {sizeof(device_data)};
 652     HDEVINFO devinfo;
 653     DWORD type;
 654     DWORD i = 0;
 655     BOOL present;
 656
 657     devinfo = SetupDiGetClassDevsW(&GUID_DEVCLASS_DISPLAY, pciW, NULL, 0);
 658     while (SetupDiEnumDeviceInfo(devinfo, i++, &device_data))
 659     {
 660         present = FALSE;
 661         SetupDiGetDevicePropertyW(devinfo, &device_data, &DEVPKEY_Device_IsPresent, &type, (BYTE *)&present,
 662                                   sizeof(present), NULL, 0);
 663         if (!present && !SetupDiRemoveDevice(devinfo, &device_data))
 664             ERR("Failed to remove GPU\n");
 665     }
 666     SetupDiDestroyDeviceInfoList(devinfo);
 667 }
 668
 669 void X11DRV_DisplayDevices_Init(BOOL force)
 670 {
 671     HANDLE mutex;
 672     struct x11drv_display_device_handler *handler = is_virtual_desktop() ? &desktop_handler : &host_handler;
 673     struct x11drv_gpu *gpus = NULL;
 674     struct x11drv_adapter *adapters = NULL;
 675     struct x11drv_monitor *monitors = NULL;
 676     INT gpu_count, adapter_count, monitor_count;
 677     INT gpu, adapter, monitor;
 678     HDEVINFO gpu_devinfo = NULL, monitor_devinfo = NULL;
 679     HKEY video_hkey = NULL;
 680     INT video_index = 0;
 681     DWORD disposition = 0;
 682     WCHAR guidW[40];
 683     WCHAR driverW[1024];
 684     LUID gpu_luid;
 685     UINT output_id = 0;
 686
 687     mutex = get_display_device_init_mutex();
 688
 689     if (RegCreateKeyExW(HKEY_LOCAL_MACHINE, video_keyW, 0, NULL, REG_OPTION_VOLATILE, KEY_ALL_ACCESS, NULL, &video_hkey,
 690                         &disposition))
 691     {
 692         ERR("Failed to create video device key\n");
 693         goto done;
 694     }
 695
 696     /* Avoid unnecessary reinit */
 697     if (!force && disposition != REG_CREATED_NEW_KEY)
 698         goto done;
 699
 700     TRACE("via %s\n", wine_dbgstr_a(handler->name));
 701
 702     prepare_devices(video_hkey);
 703
 704     gpu_devinfo = SetupDiCreateDeviceInfoList(&GUID_DEVCLASS_DISPLAY, NULL);
 705     monitor_devinfo = SetupDiCreateDeviceInfoList(&GUID_DEVCLASS_MONITOR, NULL);
 706
 707     /* Initialize GPUs */
 708     if (!handler->get_gpus(&gpus, &gpu_count))
 709         goto done;
 710     TRACE("GPU count: %d\n", gpu_count);
 711
 712     for (gpu = 0; gpu < gpu_count; gpu++)
 713     {
 714         if (!X11DRV_InitGpu(gpu_devinfo, &gpus[gpu], gpu, guidW, driverW, &gpu_luid))
 715             goto done;
 716
 717         /* Initialize adapters */
 718         if (!handler->get_adapters(gpus[gpu].id, &adapters, &adapter_count))
 719             goto done;
 720         TRACE("GPU: %#lx %s, adapter count: %d\n", gpus[gpu].id, wine_dbgstr_w(gpus[gpu].name), adapter_count);
 721
 722         for (adapter = 0; adapter < adapter_count; adapter++)
 723         {
 724             if (!handler->get_monitors(adapters[adapter].id, &monitors, &monitor_count))
 725                 goto done;
 726             TRACE("adapter: %#lx, monitor count: %d\n", adapters[adapter].id, monitor_count);
 727
 728             if (!X11DRV_InitAdapter(video_hkey, video_index, gpu, adapter, monitor_count,
 729                                     &gpus[gpu], guidW, driverW, &adapters[adapter]))
 730                 goto done;
 731
 732             /* Initialize monitors */
 733             for (monitor = 0; monitor < monitor_count; monitor++)
 734             {
 735                 TRACE("monitor: %#x %s\n", monitor, wine_dbgstr_w(monitors[monitor].name));
 736                 if (!X11DRV_InitMonitor(monitor_devinfo, &monitors[monitor], monitor, video_index, &gpu_luid, output_id++))
 737                     goto done;
 738             }
 739
 740             handler->free_monitors(monitors);
 741             monitors = NULL;
 742             video_index++;
 743         }
 744
 745         handler->free_adapters(adapters);
 746         adapters = NULL;
 747     }
 748
 749 done:
 750     cleanup_devices();
 751     SetupDiDestroyDeviceInfoList(monitor_devinfo);
 752     SetupDiDestroyDeviceInfoList(gpu_devinfo);
 753     RegCloseKey(video_hkey);
 754     release_display_device_init_mutex(mutex);
 755     if (gpus)
 756         handler->free_gpus(gpus);
 757     if (adapters)
 758         handler->free_adapters(adapters);
 759     if (monitors)
 760         handler->free_monitors(monitors);
 761 }