dlls/winex11.drv/settings.c

   1 /*
   2  * Wine X11drv display settings functions
   3  *
   4  * Copyright 2003 Alexander James Pasadyn
   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 #include <string.h>
  23 #include <stdio.h>
  24 #include <assert.h>
  25
  26 #define NONAMELESSUNION
  27 #define NONAMELESSSTRUCT
  28
  29 #include "x11drv.h"
  30
  31 #include "windef.h"
  32 #include "winreg.h"
  33 #include "wingdi.h"
  34 #include "ddrawi.h"
  35 #include "wine/debug.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(x11settings);
  38
  39 /*
  40  * The DDHALMODEINFO type is used to hold all the mode information.
  41  * This is done because the array of DDHALMODEINFO structures must be
  42  * created for use by DirectDraw anyway.
  43  */
  44 static LPDDHALMODEINFO dd_modes = NULL;
  45 static unsigned int dd_mode_count = 0;
  46 static unsigned int dd_max_modes = 0;
  47 static const unsigned int depths[]  = {8, 16, 32};
  48
  49 /* pointers to functions that actually do the hard stuff */
  50 static int (*pGetCurrentMode)(void);
  51 static LONG (*pSetCurrentMode)(int mode);
  52 static const char *handler_name;
  53
  54 /*
  55  * Set the handlers for resolution changing functions
  56  * and initialize the master list of modes
  57  */
  58 LPDDHALMODEINFO X11DRV_Settings_SetHandlers(const char *name,
  59                                  int (*pNewGCM)(void),
  60                                  LONG (*pNewSCM)(int),
  61                                  unsigned int nmodes,
  62                                  int reserve_depths)
  63 {
  64     handler_name = name;
  65     pGetCurrentMode = pNewGCM;
  66     pSetCurrentMode = pNewSCM;
  67     TRACE("Resolution settings now handled by: %s\n", name);
  68     if (reserve_depths)
  69         /* leave room for other depths */
  70         dd_max_modes = (3+1)*(nmodes);
  71     else
  72         dd_max_modes = nmodes;
  73
  74     if (dd_modes)
  75     {
  76         TRACE("Destroying old display modes array\n");
  77         HeapFree(GetProcessHeap(), 0, dd_modes);
  78     }
  79     dd_modes = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(DDHALMODEINFO) * dd_max_modes);
  80     dd_mode_count = 0;
  81     TRACE("Initialized new display modes array\n");
  82     return dd_modes;
  83 }
  84
  85 /* Add one mode to the master list */
  86 void X11DRV_Settings_AddOneMode(unsigned int width, unsigned int height, unsigned int bpp, unsigned int freq)
  87 {
  88     LPDDHALMODEINFO info = &(dd_modes[dd_mode_count]);
  89     DWORD dwBpp = screen_depth;
  90     if (dd_mode_count >= dd_max_modes)
  91     {
  92         ERR("Maximum modes (%d) exceeded\n", dd_max_modes);
  93         return;
  94     }
  95     if (dwBpp == 24) dwBpp = 32;
  96     if (bpp == 0) bpp = dwBpp;
  97     info->dwWidth        = width;
  98     info->dwHeight       = height;
  99     info->wRefreshRate   = freq;
 100     info->lPitch         = 0;
 101     info->dwBPP          = bpp;
 102     info->wFlags         = 0;
 103     info->dwRBitMask     = 0;
 104     info->dwGBitMask     = 0;
 105     info->dwBBitMask     = 0;
 106     info->dwAlphaBitMask = 0;
 107     TRACE("initialized mode %d: %dx%dx%d @%d Hz (%s)\n",
 108           dd_mode_count, width, height, bpp, freq, handler_name);
 109     dd_mode_count++;
 110 }
 111
 112 /* copy all the current modes using the other color depths */
 113 void X11DRV_Settings_AddDepthModes(void)
 114 {
 115     int i, j;
 116     int existing_modes = dd_mode_count;
 117     DWORD dwBpp = screen_depth;
 118     if (dwBpp == 24) dwBpp = 32;
 119     for (j=0; j<3; j++)
 120     {
 121         if (depths[j] != dwBpp)
 122         {
 123             for (i=0; i < existing_modes; i++)
 124             {
 125                 X11DRV_Settings_AddOneMode(dd_modes[i].dwWidth, dd_modes[i].dwHeight,
 126                                            depths[j], dd_modes[i].wRefreshRate);
 127             }
 128         }
 129     }
 130 }
 131
 132 /* return the number of modes that are initialized */
 133 unsigned int X11DRV_Settings_GetModeCount(void)
 134 {
 135     return dd_mode_count;
 136 }
 137
 138 /***********************************************************************
 139  * Default handlers if resolution switching is not enabled
 140  *
 141  */
 142 static int X11DRV_nores_GetCurrentMode(void)
 143 {
 144     return 0;
 145 }
 146
 147 static LONG X11DRV_nores_SetCurrentMode(int mode)
 148 {
 149     TRACE("Ignoring mode change request\n");
 150     return DISP_CHANGE_FAILED;
 151 }
 152
 153 /* default handler only gets the current X desktop resolution */
 154 void X11DRV_Settings_Init(void)
 155 {
 156     X11DRV_Settings_SetHandlers("NoRes",
 157                                 X11DRV_nores_GetCurrentMode,
 158                                 X11DRV_nores_SetCurrentMode,
 159                                 1, 0);
 160     X11DRV_Settings_AddOneMode(screen_width, screen_height, 0, 60);
 161 }
 162
 163 static BOOL get_display_device_reg_key(char *key, unsigned len)
 164 {
 165     static const char display_device_guid_prop[] = "__wine_display_device_guid";
 166     static const char video_path[] = "System\\CurrentControlSet\\Control\\Video\\{";
 167     static const char display0[] = "}\\0000";
 168     ATOM guid_atom;
 169
 170     assert(len >= sizeof(video_path) + sizeof(display0) + 40);
 171
 172     guid_atom = HandleToULong(GetPropA(GetDesktopWindow(), display_device_guid_prop));
 173     if (!guid_atom) return FALSE;
 174
 175     memcpy(key, video_path, sizeof(video_path));
 176
 177     if (!GlobalGetAtomNameA(guid_atom, key + strlen(key), 40))
 178         return FALSE;
 179
 180     strcat(key, display0);
 181
 182     TRACE("display device key %s\n", wine_dbgstr_a(key));
 183     return TRUE;
 184 }
 185
 186 static BOOL read_registry_settings(DEVMODEW *dm)
 187 {
 188     char wine_x11_reg_key[128];
 189     HKEY hkey;
 190     DWORD type, size;
 191     BOOL ret = TRUE;
 192
 193     dm->dmFields = 0;
 194
 195     if (!get_display_device_reg_key(wine_x11_reg_key, sizeof(wine_x11_reg_key)))
 196         return FALSE;
 197
 198     if (RegOpenKeyExA(HKEY_CURRENT_CONFIG, wine_x11_reg_key, 0, KEY_READ, &hkey))
 199         return FALSE;
 200
 201 #define query_value(name, data) \
 202     size = sizeof(DWORD); \
 203     if (RegQueryValueExA(hkey, name, 0, &type, (LPBYTE)(data), &size) || \
 204         type != REG_DWORD || size != sizeof(DWORD)) \
 205         ret = FALSE
 206
 207     query_value("DefaultSettings.BitsPerPel", &dm->dmBitsPerPel);
 208     dm->dmFields |= DM_BITSPERPEL;
 209     query_value("DefaultSettings.XResolution", &dm->dmPelsWidth);
 210     dm->dmFields |= DM_PELSWIDTH;
 211     query_value("DefaultSettings.YResolution", &dm->dmPelsHeight);
 212     dm->dmFields |= DM_PELSHEIGHT;
 213     query_value("DefaultSettings.VRefresh", &dm->dmDisplayFrequency);
 214     dm->dmFields |= DM_DISPLAYFREQUENCY;
 215     query_value("DefaultSettings.Flags", &dm->u2.dmDisplayFlags);
 216     dm->dmFields |= DM_DISPLAYFLAGS;
 217     query_value("DefaultSettings.XPanning", &dm->u1.s2.dmPosition.x);
 218     query_value("DefaultSettings.YPanning", &dm->u1.s2.dmPosition.y);
 219     query_value("DefaultSettings.Orientation", &dm->u1.s2.dmDisplayOrientation);
 220     query_value("DefaultSettings.FixedOutput", &dm->u1.s2.dmDisplayFixedOutput);
 221
 222 #undef query_value
 223
 224     RegCloseKey(hkey);
 225     return ret;
 226 }
 227
 228 static BOOL write_registry_settings(const DEVMODEW *dm)
 229 {
 230     char wine_x11_reg_key[128];
 231     HKEY hkey;
 232     BOOL ret = TRUE;
 233
 234     if (!get_display_device_reg_key(wine_x11_reg_key, sizeof(wine_x11_reg_key)))
 235         return FALSE;
 236
 237     if (RegCreateKeyExA(HKEY_CURRENT_CONFIG, wine_x11_reg_key, 0, NULL,
 238                         REG_OPTION_VOLATILE, KEY_WRITE, NULL, &hkey, NULL))
 239         return FALSE;
 240
 241 #define set_value(name, data) \
 242     if (RegSetValueExA(hkey, name, 0, REG_DWORD, (LPBYTE)(data), sizeof(DWORD))) \
 243         ret = FALSE
 244
 245     set_value("DefaultSettings.BitsPerPel", &dm->dmBitsPerPel);
 246     set_value("DefaultSettings.XResolution", &dm->dmPelsWidth);
 247     set_value("DefaultSettings.YResolution", &dm->dmPelsHeight);
 248     set_value("DefaultSettings.VRefresh", &dm->dmDisplayFrequency);
 249     set_value("DefaultSettings.Flags", &dm->u2.dmDisplayFlags);
 250     set_value("DefaultSettings.XPanning", &dm->u1.s2.dmPosition.x);
 251     set_value("DefaultSettings.YPanning", &dm->u1.s2.dmPosition.y);
 252     set_value("DefaultSettings.Orientation", &dm->u1.s2.dmDisplayOrientation);
 253     set_value("DefaultSettings.FixedOutput", &dm->u1.s2.dmDisplayFixedOutput);
 254
 255 #undef set_value
 256
 257     RegCloseKey(hkey);
 258     return ret;
 259 }
 260
 261 /***********************************************************************
 262  *              EnumDisplaySettingsEx  (X11DRV.@)
 263  *
 264  */
 265 BOOL X11DRV_EnumDisplaySettingsEx( LPCWSTR name, DWORD n, LPDEVMODEW devmode, DWORD flags)
 266 {
 267     static const WCHAR dev_name[CCHDEVICENAME] =
 268         { 'W','i','n','e',' ','X','1','1',' ','d','r','i','v','e','r',0 };
 269
 270     devmode->dmSize = sizeof(DEVMODEW);
 271     devmode->dmSpecVersion = MAKEWORD(1,4);
 272     devmode->dmDriverVersion = MAKEWORD(1,4);
 273     memcpy(devmode->dmDeviceName, dev_name, sizeof(dev_name));
 274     devmode->dmDriverExtra = 0;
 275     devmode->u2.dmDisplayFlags = 0;
 276     devmode->dmDisplayFrequency = 0;
 277     devmode->u1.s2.dmPosition.x = 0;
 278     devmode->u1.s2.dmPosition.y = 0;
 279     devmode->u1.s2.dmDisplayOrientation = 0;
 280     devmode->u1.s2.dmDisplayFixedOutput = 0;
 281
 282     if (n == ENUM_CURRENT_SETTINGS)
 283     {
 284         TRACE("mode %d (current) -- getting current mode (%s)\n", n, handler_name);
 285         n = pGetCurrentMode();
 286     }
 287     if (n == ENUM_REGISTRY_SETTINGS)
 288     {
 289         TRACE("mode %d (registry) -- getting default mode (%s)\n", n, handler_name);
 290         return read_registry_settings(devmode);
 291     }
 292     if (n < dd_mode_count)
 293     {
 294         devmode->dmPelsWidth = dd_modes[n].dwWidth;
 295         devmode->dmPelsHeight = dd_modes[n].dwHeight;
 296         devmode->dmBitsPerPel = dd_modes[n].dwBPP;
 297         devmode->dmDisplayFrequency = dd_modes[n].wRefreshRate;
 298         devmode->dmFields = (DM_PELSWIDTH|DM_PELSHEIGHT|DM_BITSPERPEL);
 299         if (devmode->dmDisplayFrequency)
 300         {
 301             devmode->dmFields |= DM_DISPLAYFREQUENCY;
 302             TRACE("mode %d -- %dx%dx%dbpp @%d Hz (%s)\n", n,
 303                   devmode->dmPelsWidth, devmode->dmPelsHeight, devmode->dmBitsPerPel,
 304                   devmode->dmDisplayFrequency, handler_name);
 305         }
 306         else
 307         {
 308             TRACE("mode %d -- %dx%dx%dbpp (%s)\n", n,
 309                   devmode->dmPelsWidth, devmode->dmPelsHeight, devmode->dmBitsPerPel,
 310                   handler_name);
 311         }
 312         return TRUE;
 313     }
 314     TRACE("mode %d -- not present (%s)\n", n, handler_name);
 315     return FALSE;
 316 }
 317
 318 #define _X_FIELD(prefix, bits) if ((fields) & prefix##_##bits) {p+=sprintf(p, "%s%s", first ? "" : ",", #bits); first=FALSE;}
 319 static const char * _CDS_flags(DWORD fields)
 320 {
 321     BOOL first = TRUE;
 322     char buf[128];
 323     char *p = buf;
 324     _X_FIELD(CDS,UPDATEREGISTRY);_X_FIELD(CDS,TEST);_X_FIELD(CDS,FULLSCREEN);
 325     _X_FIELD(CDS,GLOBAL);_X_FIELD(CDS,SET_PRIMARY);_X_FIELD(CDS,RESET);
 326     _X_FIELD(CDS,SETRECT);_X_FIELD(CDS,NORESET);
 327     *p = 0;
 328     return wine_dbg_sprintf("%s", buf);
 329 }
 330 static const char * _DM_fields(DWORD fields)
 331 {
 332     BOOL first = TRUE;
 333     char buf[128];
 334     char *p = buf;
 335     _X_FIELD(DM,BITSPERPEL);_X_FIELD(DM,PELSWIDTH);_X_FIELD(DM,PELSHEIGHT);
 336     _X_FIELD(DM,DISPLAYFLAGS);_X_FIELD(DM,DISPLAYFREQUENCY);_X_FIELD(DM,POSITION);
 337     *p = 0;
 338     return wine_dbg_sprintf("%s", buf);
 339 }
 340 #undef _X_FIELD
 341
 342 /***********************************************************************
 343  *              ChangeDisplaySettingsEx  (X11DRV.@)
 344  *
 345  */
 346 LONG X11DRV_ChangeDisplaySettingsEx( LPCWSTR devname, LPDEVMODEW devmode,
 347                                      HWND hwnd, DWORD flags, LPVOID lpvoid )
 348 {
 349     DWORD i, dwBpp = 0;
 350     DEVMODEW dm;
 351     BOOL def_mode = TRUE;
 352
 353     TRACE("(%s,%p,%p,0x%08x,%p)\n",debugstr_w(devname),devmode,hwnd,flags,lpvoid);
 354     TRACE("flags=%s\n",_CDS_flags(flags));
 355     if (devmode)
 356     {
 357         TRACE("DM_fields=%s\n",_DM_fields(devmode->dmFields));
 358         TRACE("width=%d height=%d bpp=%d freq=%d (%s)\n",
 359               devmode->dmPelsWidth,devmode->dmPelsHeight,
 360               devmode->dmBitsPerPel,devmode->dmDisplayFrequency, handler_name);
 361
 362         dwBpp = (devmode->dmBitsPerPel == 24) ? 32 : devmode->dmBitsPerPel;
 363         if (devmode->dmFields & DM_BITSPERPEL) def_mode &= !dwBpp;
 364         if (devmode->dmFields & DM_PELSWIDTH)  def_mode &= !devmode->dmPelsWidth;
 365         if (devmode->dmFields & DM_PELSHEIGHT) def_mode &= !devmode->dmPelsHeight;
 366         if (devmode->dmFields & DM_DISPLAYFREQUENCY) def_mode &= !devmode->dmDisplayFrequency;
 367     }
 368
 369     if (def_mode || !dwBpp)
 370     {
 371         if (!X11DRV_EnumDisplaySettingsEx(devname, ENUM_REGISTRY_SETTINGS, &dm, 0))
 372         {
 373             ERR("Default mode not found!\n");
 374             return DISP_CHANGE_BADMODE;
 375         }
 376         if (def_mode)
 377         {
 378             TRACE("Return to original display mode (%s)\n", handler_name);
 379             devmode = &dm;
 380         }
 381         dwBpp = dm.dmBitsPerPel;
 382     }
 383
 384     if ((devmode->dmFields & (DM_PELSWIDTH | DM_PELSHEIGHT)) != (DM_PELSWIDTH | DM_PELSHEIGHT))
 385     {
 386         WARN("devmode doesn't specify the resolution: %04x\n", devmode->dmFields);
 387         return DISP_CHANGE_BADMODE;
 388     }
 389
 390     for (i = 0; i < dd_mode_count; i++)
 391     {
 392         if (devmode->dmFields & DM_BITSPERPEL)
 393         {
 394             if (dwBpp != dd_modes[i].dwBPP)
 395                 continue;
 396         }
 397         if (devmode->dmFields & DM_PELSWIDTH)
 398         {
 399             if (devmode->dmPelsWidth != dd_modes[i].dwWidth)
 400                 continue;
 401         }
 402         if (devmode->dmFields & DM_PELSHEIGHT)
 403         {
 404             if (devmode->dmPelsHeight != dd_modes[i].dwHeight)
 405                 continue;
 406         }
 407         if ((devmode->dmFields & DM_DISPLAYFREQUENCY) && (dd_modes[i].wRefreshRate != 0) &&
 408             devmode->dmDisplayFrequency != 0)
 409         {
 410             if (devmode->dmDisplayFrequency != dd_modes[i].wRefreshRate)
 411                 continue;
 412         }
 413         /* we have a valid mode */
 414         TRACE("Requested display settings match mode %d (%s)\n", i, handler_name);
 415
 416         if (flags & CDS_UPDATEREGISTRY)
 417             write_registry_settings(devmode);
 418
 419         if (!(flags & (CDS_TEST | CDS_NORESET)))
 420             return pSetCurrentMode(i);
 421
 422         return DISP_CHANGE_SUCCESSFUL;
 423     }
 424
 425     /* no valid modes found */
 426     ERR("No matching mode found %ux%ux%u @%u! (%s)\n",
 427         devmode->dmPelsWidth, devmode->dmPelsHeight,
 428         devmode->dmBitsPerPel, devmode->dmDisplayFrequency, handler_name);
 429     return DISP_CHANGE_BADMODE;
 430 }
 431
 432
 433
 434
 435 /***********************************************************************
 436  * DirectDraw HAL interface
 437  *
 438  */
 439 static DWORD PASCAL X11DRV_Settings_SetMode(LPDDHAL_SETMODEDATA data)
 440 {
 441     TRACE("Mode %d requested by DDHAL (%s)\n", data->dwModeIndex, handler_name);
 442     switch (pSetCurrentMode(data->dwModeIndex))
 443     {
 444     case DISP_CHANGE_SUCCESSFUL:
 445         X11DRV_DDHAL_SwitchMode(data->dwModeIndex, NULL, NULL);
 446         data->ddRVal = DD_OK;
 447         break;
 448     case DISP_CHANGE_BADMODE:
 449         data->ddRVal = DDERR_WRONGMODE;
 450         break;
 451     default:
 452         data->ddRVal = DDERR_UNSUPPORTEDMODE;
 453     }
 454     return DDHAL_DRIVER_HANDLED;
 455 }
 456 int X11DRV_Settings_CreateDriver(LPDDHALINFO info)
 457 {
 458     if (!dd_mode_count) return 0; /* no settings defined */
 459
 460     TRACE("Setting up display settings for DDRAW (%s)\n", handler_name);
 461     info->dwNumModes = dd_mode_count;
 462     info->lpModeInfo = dd_modes;
 463     X11DRV_DDHAL_SwitchMode(pGetCurrentMode(), NULL, NULL);
 464     info->lpDDCallbacks->SetMode = X11DRV_Settings_SetMode;
 465     return TRUE;
 466 }