dlls/winex11.drv/xrandr.c

   1 /*
   2  * Wine X11drv Xrandr interface
   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 "wine/port.h"
  23 #include <string.h>
  24 #include <stdio.h>
  25
  26 #ifdef SONAME_LIBXRANDR
  27
  28 #include <X11/Xlib.h>
  29 #include <X11/extensions/Xrandr.h>
  30 #include "x11drv.h"
  31
  32 #include "xrandr.h"
  33
  34 #include "windef.h"
  35 #include "winbase.h"
  36 #include "wingdi.h"
  37 #include "ddrawi.h"
  38 #include "wine/library.h"
  39 #include "wine/debug.h"
  40
  41 WINE_DEFAULT_DEBUG_CHANNEL(xrandr);
  42
  43 static void *xrandr_handle;
  44
  45 #define MAKE_FUNCPTR(f) static typeof(f) * p##f;
  46 MAKE_FUNCPTR(XRRConfigCurrentConfiguration)
  47 MAKE_FUNCPTR(XRRConfigCurrentRate)
  48 MAKE_FUNCPTR(XRRFreeScreenConfigInfo)
  49 MAKE_FUNCPTR(XRRGetScreenInfo)
  50 MAKE_FUNCPTR(XRRQueryExtension)
  51 MAKE_FUNCPTR(XRRQueryVersion)
  52 MAKE_FUNCPTR(XRRRates)
  53 MAKE_FUNCPTR(XRRSetScreenConfig)
  54 MAKE_FUNCPTR(XRRSetScreenConfigAndRate)
  55 MAKE_FUNCPTR(XRRSizes)
  56 #undef MAKE_FUNCPTR
  57
  58 extern int usexrandr;
  59
  60 static int xrandr_event, xrandr_error, xrandr_major, xrandr_minor;
  61
  62 static LPDDHALMODEINFO dd_modes;
  63 static unsigned int dd_mode_count;
  64 static XRRScreenSize *real_xrandr_sizes;
  65 static short **real_xrandr_rates;
  66 static int real_xrandr_sizes_count;
  67 static int *real_xrandr_rates_count;
  68 static unsigned int real_xrandr_modes_count;
  69
  70 static int load_xrandr(void)
  71 {
  72     int r = 0;
  73
  74     if (wine_dlopen(SONAME_LIBX11, RTLD_NOW|RTLD_GLOBAL, NULL, 0) &&
  75         wine_dlopen(SONAME_LIBXEXT, RTLD_NOW|RTLD_GLOBAL, NULL, 0) &&
  76         wine_dlopen(SONAME_LIBXRENDER, RTLD_NOW|RTLD_GLOBAL, NULL, 0) &&
  77         (xrandr_handle = wine_dlopen(SONAME_LIBXRANDR, RTLD_NOW, NULL, 0)))
  78     {
  79
  80 #define LOAD_FUNCPTR(f) \
  81         if((p##f = wine_dlsym(xrandr_handle, #f, NULL, 0)) == NULL) \
  82             goto sym_not_found;
  83
  84         LOAD_FUNCPTR(XRRConfigCurrentConfiguration)
  85         LOAD_FUNCPTR(XRRConfigCurrentRate)
  86         LOAD_FUNCPTR(XRRFreeScreenConfigInfo)
  87         LOAD_FUNCPTR(XRRGetScreenInfo)
  88         LOAD_FUNCPTR(XRRQueryExtension)
  89         LOAD_FUNCPTR(XRRQueryVersion)
  90         LOAD_FUNCPTR(XRRRates)
  91         LOAD_FUNCPTR(XRRSetScreenConfig)
  92         LOAD_FUNCPTR(XRRSetScreenConfigAndRate)
  93         LOAD_FUNCPTR(XRRSizes)
  94
  95 #undef LOAD_FUNCPTR
  96
  97         r = 1;   /* success */
  98
  99 sym_not_found:
 100         if (!r)  TRACE("Unable to load function ptrs from XRandR library\n");
 101     }
 102     return r;
 103 }
 104
 105 static int XRandRErrorHandler(Display *dpy, XErrorEvent *event, void *arg)
 106 {
 107     return 1;
 108 }
 109
 110
 111 /* create the mode structures */
 112 static void make_modes(void)
 113 {
 114     unsigned int i;
 115     int j;
 116     for (i=0; i<real_xrandr_sizes_count; i++)
 117     {
 118         if (real_xrandr_rates_count[i])
 119         {
 120             for (j=0; j < real_xrandr_rates_count[i]; j++)
 121             {
 122                 X11DRV_Settings_AddOneMode(real_xrandr_sizes[i].width,
 123                                            real_xrandr_sizes[i].height,
 124                                            0, real_xrandr_rates[i][j]);
 125             }
 126         }
 127         else
 128         {
 129             X11DRV_Settings_AddOneMode(real_xrandr_sizes[i].width,
 130                                        real_xrandr_sizes[i].height,
 131                                        0, 0);
 132         }
 133     }
 134 }
 135
 136 static int X11DRV_XRandR_GetCurrentMode(void)
 137 {
 138     SizeID size;
 139     Rotation rot;
 140     Window root;
 141     XRRScreenConfiguration *sc;
 142     short rate;
 143     unsigned int i;
 144     int res = -1;
 145
 146     wine_tsx11_lock();
 147     root = RootWindow (gdi_display, DefaultScreen(gdi_display));
 148     sc = pXRRGetScreenInfo (gdi_display, root);
 149     size = pXRRConfigCurrentConfiguration (sc, &rot);
 150     rate = pXRRConfigCurrentRate (sc);
 151     pXRRFreeScreenConfigInfo(sc);
 152     wine_tsx11_unlock();
 153     for (i = 0; i < real_xrandr_modes_count; i++)
 154     {
 155         if ( (dd_modes[i].dwWidth      == real_xrandr_sizes[size].width ) &&
 156              (dd_modes[i].dwHeight     == real_xrandr_sizes[size].height) &&
 157              (dd_modes[i].wRefreshRate == rate                          ) )
 158           {
 159               res = i;
 160               break;
 161           }
 162     }
 163     if (res == -1)
 164     {
 165         ERR("In unknown mode, returning default\n");
 166         res = 0;
 167     }
 168     return res;
 169 }
 170
 171 static LONG X11DRV_XRandR_SetCurrentMode(int mode)
 172 {
 173     SizeID size;
 174     Rotation rot;
 175     Window root;
 176     XRRScreenConfiguration *sc;
 177     Status stat = RRSetConfigSuccess;
 178     short rate;
 179     unsigned int i;
 180     int j;
 181     DWORD dwBpp = screen_depth;
 182     if (dwBpp == 24) dwBpp = 32;
 183
 184     wine_tsx11_lock();
 185     root = RootWindow (gdi_display, DefaultScreen(gdi_display));
 186     sc = pXRRGetScreenInfo (gdi_display, root);
 187     size = pXRRConfigCurrentConfiguration (sc, &rot);
 188     if (dwBpp != dd_modes[mode].dwBPP)
 189     {
 190         FIXME("Cannot change screen BPP from %d to %d\n", dwBpp, dd_modes[mode].dwBPP);
 191     }
 192     mode = mode%real_xrandr_modes_count;
 193
 194     TRACE("Changing Resolution to %dx%d @%d Hz\n",
 195           dd_modes[mode].dwWidth,
 196           dd_modes[mode].dwHeight,
 197           dd_modes[mode].wRefreshRate);
 198
 199     for (i = 0; i < real_xrandr_sizes_count; i++)
 200     {
 201         if ( (dd_modes[mode].dwWidth  == real_xrandr_sizes[i].width ) &&
 202              (dd_modes[mode].dwHeight == real_xrandr_sizes[i].height) )
 203         {
 204             size = i;
 205             if (real_xrandr_rates_count[i])
 206             {
 207                 for (j=0; j < real_xrandr_rates_count[i]; j++)
 208                 {
 209                     if (dd_modes[mode].wRefreshRate == real_xrandr_rates[i][j])
 210                     {
 211                         rate = real_xrandr_rates[i][j];
 212                         TRACE("Resizing X display to %dx%d @%d Hz\n",
 213                               dd_modes[mode].dwWidth, dd_modes[mode].dwHeight, rate);
 214                         stat = pXRRSetScreenConfigAndRate (gdi_display, sc, root,
 215                                                           size, rot, rate, CurrentTime);
 216                         break;
 217                     }
 218                 }
 219             }
 220             else
 221             {
 222                 TRACE("Resizing X display to %dx%d <default Hz>\n",
 223                       dd_modes[mode].dwWidth, dd_modes[mode].dwHeight);
 224                 stat = pXRRSetScreenConfig (gdi_display, sc, root, size, rot, CurrentTime);
 225             }
 226             break;
 227         }
 228     }
 229     pXRRFreeScreenConfigInfo(sc);
 230     wine_tsx11_unlock();
 231     if (stat == RRSetConfigSuccess)
 232     {
 233         X11DRV_handle_desktop_resize( dd_modes[mode].dwWidth, dd_modes[mode].dwHeight );
 234         return DISP_CHANGE_SUCCESSFUL;
 235     }
 236
 237     ERR("Resolution change not successful -- perhaps display has changed?\n");
 238     return DISP_CHANGE_FAILED;
 239 }
 240
 241 void X11DRV_XRandR_Init(void)
 242 {
 243     Bool ok;
 244     int nmodes = 0;
 245     unsigned int i;
 246
 247     if (xrandr_major) return; /* already initialized? */
 248     if (!usexrandr) return; /* disabled in config */
 249     if (root_window != DefaultRootWindow( gdi_display )) return;
 250     if (!load_xrandr()) return;  /* can't load the Xrandr library */
 251
 252     /* see if Xrandr is available */
 253     wine_tsx11_lock();
 254     ok = pXRRQueryExtension(gdi_display, &xrandr_event, &xrandr_error);
 255     if (ok)
 256     {
 257         X11DRV_expect_error(gdi_display, XRandRErrorHandler, NULL);
 258         ok = pXRRQueryVersion(gdi_display, &xrandr_major, &xrandr_minor);
 259         if (X11DRV_check_error()) ok = FALSE;
 260     }
 261     if (ok)
 262     {
 263         TRACE("Found XRandR - major: %d, minor: %d\n", xrandr_major, xrandr_minor);
 264         /* retrieve modes */
 265         real_xrandr_sizes = pXRRSizes(gdi_display, DefaultScreen(gdi_display), &real_xrandr_sizes_count);
 266         ok = (real_xrandr_sizes_count>0);
 267     }
 268     if (ok)
 269     {
 270         TRACE("XRandR: found %u resolutions sizes\n", real_xrandr_sizes_count);
 271         real_xrandr_rates = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(short *) * real_xrandr_sizes_count);
 272         real_xrandr_rates_count = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(int) * real_xrandr_sizes_count);
 273         for (i=0; i < real_xrandr_sizes_count; i++)
 274         {
 275             real_xrandr_rates[i] = pXRRRates (gdi_display, DefaultScreen(gdi_display), i, &(real_xrandr_rates_count[i]));
 276             TRACE("- at %u: %dx%d (%d rates):", i, real_xrandr_sizes[i].width, real_xrandr_sizes[i].height, real_xrandr_rates_count[i]);
 277             if (real_xrandr_rates_count[i])
 278             {
 279                 int j;
 280                 nmodes += real_xrandr_rates_count[i];
 281                 for (j = 0; j < real_xrandr_rates_count[i]; ++j) {
 282                   if (j > 0) TRACE(",");
 283                   TRACE("  %d", real_xrandr_rates[i][j]);
 284                 }
 285             }
 286             else
 287             {
 288                 nmodes++;
 289                 TRACE(" <default>");
 290             }
 291             TRACE(" Hz\n");
 292         }
 293     }
 294     wine_tsx11_unlock();
 295     if (!ok) return;
 296
 297     real_xrandr_modes_count = nmodes;
 298     TRACE("XRandR modes: count=%d\n", nmodes);
 299
 300     dd_modes = X11DRV_Settings_SetHandlers("XRandR",
 301                                            X11DRV_XRandR_GetCurrentMode,
 302                                            X11DRV_XRandR_SetCurrentMode,
 303                                            nmodes, 1);
 304     make_modes();
 305     X11DRV_Settings_AddDepthModes();
 306     dd_mode_count = X11DRV_Settings_GetModeCount();
 307     X11DRV_Settings_SetDefaultMode(0);
 308
 309     TRACE("Available DD modes: count=%d\n", dd_mode_count);
 310     TRACE("Enabling XRandR\n");
 311 }
 312
 313 void X11DRV_XRandR_Cleanup(void)
 314 {
 315     HeapFree(GetProcessHeap(), 0, real_xrandr_rates);
 316     real_xrandr_rates = NULL;
 317     HeapFree(GetProcessHeap(), 0, real_xrandr_rates_count);
 318     real_xrandr_rates_count = NULL;
 319 }
 320
 321 #endif /* SONAME_LIBXRANDR */