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 "x11drv.h"
  25
  26 #include "windef.h"
  27 #include "wingdi.h"
  28 #include "ddrawi.h"
  29 #include "wine/debug.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(x11settings);
  32
  33 /*
  34  * The DDHALMODEINFO type is used to hold all the mode information.
  35  * This is done because the array of DDHALMODEINFO structures must be
  36  * created for use by DirectDraw anyway.
  37  */
  38 static LPDDHALMODEINFO dd_modes = NULL;
  39 static unsigned int dd_mode_count = 0;
  40 static unsigned int dd_max_modes = 0;
  41 static int dd_mode_default = 0;
  42 static const unsigned int depths[]  = {8, 16, 32};
  43
  44 /* pointers to functions that actually do the hard stuff */
  45 static int (*pGetCurrentMode)(void);
  46 static LONG (*pSetCurrentMode)(int mode);
  47 static const char *handler_name;
  48
  49 /*
  50  * Set the handlers for resolution changing functions
  51  * and initialize the master list of modes
  52  */
  53 LPDDHALMODEINFO X11DRV_Settings_SetHandlers(const char *name,
  54                                  int (*pNewGCM)(void),
  55                                  LONG (*pNewSCM)(int),
  56                                  unsigned int nmodes,
  57                                  int reserve_depths)
  58 {
  59     handler_name = name;
  60     pGetCurrentMode = pNewGCM;
  61     pSetCurrentMode = pNewSCM;
  62     TRACE("Resolution settings now handled by: %s\n", name);
  63     if (reserve_depths)
  64         /* leave room for other depths */
  65         dd_max_modes = (3+1)*(nmodes);
  66     else
  67         dd_max_modes = nmodes;
  68
  69     if (dd_modes)
  70     {
  71         TRACE("Destroying old display modes array\n");
  72         HeapFree(GetProcessHeap(), 0, dd_modes);
  73     }
  74     dd_modes = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(DDHALMODEINFO) * dd_max_modes);
  75     dd_mode_count = 0;
  76     TRACE("Initialized new display modes array\n");
  77     return dd_modes;
  78 }
  79
  80 /* Add one mode to the master list */
  81 void X11DRV_Settings_AddOneMode(unsigned int width, unsigned int height, unsigned int bpp, unsigned int freq)
  82 {
  83     LPDDHALMODEINFO info = &(dd_modes[dd_mode_count]);
  84     DWORD dwBpp = screen_depth;
  85     if (dd_mode_count >= dd_max_modes)
  86     {
  87         ERR("Maximum modes (%d) exceeded\n", dd_max_modes);
  88         return;
  89     }
  90     if (dwBpp == 24) dwBpp = 32;
  91     if (bpp == 0) bpp = dwBpp;
  92     info->dwWidth        = width;
  93     info->dwHeight       = height;
  94     info->wRefreshRate   = freq;
  95     info->lPitch         = 0;
  96     info->dwBPP          = bpp;
  97     info->wFlags         = 0;
  98     info->dwRBitMask     = 0;
  99     info->dwGBitMask     = 0;
 100     info->dwBBitMask     = 0;
 101     info->dwAlphaBitMask = 0;
 102     TRACE("initialized mode %d: %dx%dx%d @%d Hz (%s)\n",
 103           dd_mode_count, width, height, bpp, freq, handler_name);
 104     dd_mode_count++;
 105 }
 106
 107 /* copy all the current modes using the other color depths */
 108 void X11DRV_Settings_AddDepthModes(void)
 109 {
 110     int i, j;
 111     int existing_modes = dd_mode_count;
 112     DWORD dwBpp = screen_depth;
 113     if (dwBpp == 24) dwBpp = 32;
 114     for (j=0; j<3; j++)
 115     {
 116         if (depths[j] != dwBpp)
 117         {
 118             for (i=0; i < existing_modes; i++)
 119             {
 120                 X11DRV_Settings_AddOneMode(dd_modes[i].dwWidth, dd_modes[i].dwHeight,
 121                                            depths[j], dd_modes[i].wRefreshRate);
 122             }
 123         }
 124     }
 125 }
 126
 127 /* set the default mode */
 128 void X11DRV_Settings_SetDefaultMode(int mode)
 129 {
 130     dd_mode_default = mode;
 131 }
 132
 133 /* return the number of modes that are initialized */
 134 unsigned int X11DRV_Settings_GetModeCount(void)
 135 {
 136     return dd_mode_count;
 137 }
 138
 139 /***********************************************************************
 140  * Default handlers if resolution switching is not enabled
 141  *
 142  */
 143 static int X11DRV_nores_GetCurrentMode(void)
 144 {
 145     return 0;
 146 }
 147 static LONG X11DRV_nores_SetCurrentMode(int mode)
 148 {
 149     TRACE("Ignoring mode change request\n");
 150     return DISP_CHANGE_FAILED;
 151 }
 152 /* default handler only gets the current X desktop resolution */
 153 void X11DRV_Settings_Init(void)
 154 {
 155     X11DRV_Settings_SetHandlers("NoRes",
 156                                 X11DRV_nores_GetCurrentMode,
 157                                 X11DRV_nores_SetCurrentMode,
 158                                 1, 0);
 159     X11DRV_Settings_AddOneMode(screen_width, screen_height, 0, 60);
 160 }
 161
 162 /***********************************************************************
 163  *              EnumDisplaySettingsEx  (X11DRV.@)
 164  *
 165  */
 166 BOOL X11DRV_EnumDisplaySettingsEx( LPCWSTR name, DWORD n, LPDEVMODEW devmode, DWORD flags)
 167 {
 168     DWORD dwBpp = screen_depth;
 169     if (dwBpp == 24) dwBpp = 32;
 170     devmode->dmDisplayFlags = 0;
 171     devmode->dmDisplayFrequency = 0;
 172     devmode->dmSize = sizeof(DEVMODEW);
 173     if (n == ENUM_CURRENT_SETTINGS)
 174     {
 175         TRACE("mode %d (current) -- getting current mode (%s)\n", n, handler_name);
 176         n = pGetCurrentMode();
 177     }
 178     if (n == ENUM_REGISTRY_SETTINGS)
 179     {
 180         TRACE("mode %d (registry) -- getting default mode (%s)\n", n, handler_name);
 181         n = dd_mode_default;
 182     }
 183     if (n < dd_mode_count)
 184     {
 185         devmode->dmPelsWidth = dd_modes[n].dwWidth;
 186         devmode->dmPelsHeight = dd_modes[n].dwHeight;
 187         devmode->dmBitsPerPel = dd_modes[n].dwBPP;
 188         devmode->dmDisplayFrequency = dd_modes[n].wRefreshRate;
 189         devmode->dmFields = (DM_PELSWIDTH|DM_PELSHEIGHT|DM_BITSPERPEL);
 190         if (devmode->dmDisplayFrequency)
 191         {
 192             devmode->dmFields |= DM_DISPLAYFREQUENCY;
 193             TRACE("mode %d -- %dx%dx%dbpp @%d Hz (%s)\n", n,
 194                   devmode->dmPelsWidth, devmode->dmPelsHeight, devmode->dmBitsPerPel,
 195                   devmode->dmDisplayFrequency, handler_name);
 196         }
 197         else
 198         {
 199             TRACE("mode %d -- %dx%dx%dbpp (%s)\n", n,
 200                   devmode->dmPelsWidth, devmode->dmPelsHeight, devmode->dmBitsPerPel,
 201                   handler_name);
 202         }
 203         return TRUE;
 204     }
 205     TRACE("mode %d -- not present (%s)\n", n, handler_name);
 206     return FALSE;
 207 }
 208
 209 #define _X_FIELD(prefix, bits) if ((fields) & prefix##_##bits) {p+=sprintf(p, "%s%s", first ? "" : ",", #bits); first=FALSE;}
 210 static const char * _CDS_flags(DWORD fields)
 211 {
 212     BOOL first = TRUE;
 213     char buf[128];
 214     char *p = buf;
 215     _X_FIELD(CDS,UPDATEREGISTRY);_X_FIELD(CDS,TEST);_X_FIELD(CDS,FULLSCREEN);
 216     _X_FIELD(CDS,GLOBAL);_X_FIELD(CDS,SET_PRIMARY);_X_FIELD(CDS,RESET);
 217     _X_FIELD(CDS,SETRECT);_X_FIELD(CDS,NORESET);
 218     *p = 0;
 219     return wine_dbg_sprintf("%s", buf);
 220 }
 221 static const char * _DM_fields(DWORD fields)
 222 {
 223     BOOL first = TRUE;
 224     char buf[128];
 225     char *p = buf;
 226     _X_FIELD(DM,BITSPERPEL);_X_FIELD(DM,PELSWIDTH);_X_FIELD(DM,PELSHEIGHT);
 227     _X_FIELD(DM,DISPLAYFLAGS);_X_FIELD(DM,DISPLAYFREQUENCY);_X_FIELD(DM,POSITION);
 228     *p = 0;
 229     return wine_dbg_sprintf("%s", buf);
 230 }
 231 #undef _X_FIELD
 232
 233 /***********************************************************************
 234  *              ChangeDisplaySettingsEx  (X11DRV.@)
 235  *
 236  */
 237 LONG X11DRV_ChangeDisplaySettingsEx( LPCWSTR devname, LPDEVMODEW devmode,
 238                                      HWND hwnd, DWORD flags, LPVOID lpvoid )
 239 {
 240     DWORD i, dwBpp = 0;
 241     DEVMODEW dm;
 242     BOOL def_mode = TRUE;
 243
 244     TRACE("(%s,%p,%p,0x%08x,%p)\n",debugstr_w(devname),devmode,hwnd,flags,lpvoid);
 245     TRACE("flags=%s\n",_CDS_flags(flags));
 246     if (devmode)
 247     {
 248         TRACE("DM_fields=%s\n",_DM_fields(devmode->dmFields));
 249         TRACE("width=%d height=%d bpp=%d freq=%d (%s)\n",
 250               devmode->dmPelsWidth,devmode->dmPelsHeight,
 251               devmode->dmBitsPerPel,devmode->dmDisplayFrequency, handler_name);
 252
 253         dwBpp = (devmode->dmBitsPerPel == 24) ? 32 : devmode->dmBitsPerPel;
 254         if (devmode->dmFields & DM_BITSPERPEL) def_mode &= !dwBpp;
 255         if (devmode->dmFields & DM_PELSWIDTH)  def_mode &= !devmode->dmPelsWidth;
 256         if (devmode->dmFields & DM_PELSHEIGHT) def_mode &= !devmode->dmPelsHeight;
 257         if (devmode->dmFields & DM_DISPLAYFREQUENCY) def_mode &= !devmode->dmDisplayFrequency;
 258     }
 259
 260     if (def_mode)
 261     {
 262         TRACE("Return to original display mode (%s)\n", handler_name);
 263         if (!X11DRV_EnumDisplaySettingsEx(devname, dd_mode_default, &dm, 0))
 264         {
 265             ERR("Default mode not found!\n");
 266             return DISP_CHANGE_BADMODE;
 267         }
 268         devmode = &dm;
 269     }
 270     dwBpp = !dwBpp ? dd_modes[dd_mode_default].dwBPP : dwBpp;
 271
 272     if ((devmode->dmFields & (DM_PELSWIDTH | DM_PELSHEIGHT)) != (DM_PELSWIDTH | DM_PELSHEIGHT))
 273         return DISP_CHANGE_BADMODE;
 274
 275     for (i = 0; i < dd_mode_count; i++)
 276     {
 277         if (devmode->dmFields & DM_BITSPERPEL)
 278         {
 279             if (dwBpp != dd_modes[i].dwBPP)
 280                 continue;
 281         }
 282         if (devmode->dmFields & DM_PELSWIDTH)
 283         {
 284             if (devmode->dmPelsWidth != dd_modes[i].dwWidth)
 285                 continue;
 286         }
 287         if (devmode->dmFields & DM_PELSHEIGHT)
 288         {
 289             if (devmode->dmPelsHeight != dd_modes[i].dwHeight)
 290                 continue;
 291         }
 292         if ((devmode->dmFields & DM_DISPLAYFREQUENCY) && (dd_modes[i].wRefreshRate != 0) &&
 293             devmode->dmDisplayFrequency != 0)
 294         {
 295             if (devmode->dmDisplayFrequency != dd_modes[i].wRefreshRate)
 296                 continue;
 297         }
 298         /* we have a valid mode */
 299         TRACE("Requested display settings match mode %d (%s)\n", i, handler_name);
 300         if (!(flags & CDS_TEST))
 301             return pSetCurrentMode(i);
 302         return DISP_CHANGE_SUCCESSFUL;
 303     }
 304
 305     /* no valid modes found */
 306     ERR("No matching mode found! (%s)\n", handler_name);
 307     return DISP_CHANGE_BADMODE;
 308 }
 309
 310
 311
 312
 313 /***********************************************************************
 314  * DirectDraw HAL interface
 315  *
 316  */
 317 static DWORD PASCAL X11DRV_Settings_SetMode(LPDDHAL_SETMODEDATA data)
 318 {
 319     TRACE("Mode %d requested by DDHAL (%s)\n", data->dwModeIndex, handler_name);
 320     switch (pSetCurrentMode(data->dwModeIndex))
 321     {
 322     case DISP_CHANGE_SUCCESSFUL:
 323         X11DRV_DDHAL_SwitchMode(data->dwModeIndex, NULL, NULL);
 324         data->ddRVal = DD_OK;
 325         break;
 326     case DISP_CHANGE_BADMODE:
 327         data->ddRVal = DDERR_WRONGMODE;
 328         break;
 329     default:
 330         data->ddRVal = DDERR_UNSUPPORTEDMODE;
 331     }
 332     return DDHAL_DRIVER_HANDLED;
 333 }
 334 int X11DRV_Settings_CreateDriver(LPDDHALINFO info)
 335 {
 336     if (!dd_mode_count) return 0; /* no settings defined */
 337
 338     TRACE("Setting up display settings for DDRAW (%s)\n", handler_name);
 339     info->dwNumModes = dd_mode_count;
 340     info->lpModeInfo = dd_modes;
 341     X11DRV_DDHAL_SwitchMode(pGetCurrentMode(), NULL, NULL);
 342     info->lpDDCallbacks->SetMode = X11DRV_Settings_SetMode;
 343     return TRUE;
 344 }