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     int i, j;
 115
 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
 182     wine_tsx11_lock();
 183     root = RootWindow (gdi_display, DefaultScreen(gdi_display));
 184     sc = pXRRGetScreenInfo (gdi_display, root);
 185     size = pXRRConfigCurrentConfiguration (sc, &rot);
 186     mode = mode%real_xrandr_modes_count;
 187
 188     TRACE("Changing Resolution to %dx%d @%d Hz\n",
 189           dd_modes[mode].dwWidth,
 190           dd_modes[mode].dwHeight,
 191           dd_modes[mode].wRefreshRate);
 192
 193     for (i = 0; i < real_xrandr_sizes_count; i++)
 194     {
 195         if ( (dd_modes[mode].dwWidth  == real_xrandr_sizes[i].width ) &&
 196              (dd_modes[mode].dwHeight == real_xrandr_sizes[i].height) )
 197         {
 198             size = i;
 199             if (real_xrandr_rates_count[i])
 200             {
 201                 for (j=0; j < real_xrandr_rates_count[i]; j++)
 202                 {
 203                     if (dd_modes[mode].wRefreshRate == real_xrandr_rates[i][j])
 204                     {
 205                         rate = real_xrandr_rates[i][j];
 206                         TRACE("Resizing X display to %dx%d @%d Hz\n",
 207                               dd_modes[mode].dwWidth, dd_modes[mode].dwHeight, rate);
 208                         stat = pXRRSetScreenConfigAndRate (gdi_display, sc, root,
 209                                                           size, rot, rate, CurrentTime);
 210                         break;
 211                     }
 212                 }
 213             }
 214             else
 215             {
 216                 TRACE("Resizing X display to %dx%d <default Hz>\n",
 217                       dd_modes[mode].dwWidth, dd_modes[mode].dwHeight);
 218                 stat = pXRRSetScreenConfig (gdi_display, sc, root, size, rot, CurrentTime);
 219             }
 220             break;
 221         }
 222     }
 223     pXRRFreeScreenConfigInfo(sc);
 224     wine_tsx11_unlock();
 225     if (stat == RRSetConfigSuccess)
 226     {
 227         X11DRV_resize_desktop( dd_modes[mode].dwWidth, dd_modes[mode].dwHeight );
 228         return DISP_CHANGE_SUCCESSFUL;
 229     }
 230
 231     ERR("Resolution change not successful -- perhaps display has changed?\n");
 232     return DISP_CHANGE_FAILED;
 233 }
 234
 235 void X11DRV_XRandR_Init(void)
 236 {
 237     Bool ok;
 238     int i, nmodes = 0;
 239
 240     if (xrandr_major) return; /* already initialized? */
 241     if (!usexrandr) return; /* disabled in config */
 242     if (root_window != DefaultRootWindow( gdi_display )) return;
 243     if (!load_xrandr()) return;  /* can't load the Xrandr library */
 244
 245     /* see if Xrandr is available */
 246     wine_tsx11_lock();
 247     ok = pXRRQueryExtension(gdi_display, &xrandr_event, &xrandr_error);
 248     if (ok)
 249     {
 250         X11DRV_expect_error(gdi_display, XRandRErrorHandler, NULL);
 251         ok = pXRRQueryVersion(gdi_display, &xrandr_major, &xrandr_minor);
 252         if (X11DRV_check_error()) ok = FALSE;
 253     }
 254     if (ok)
 255     {
 256         TRACE("Found XRandR - major: %d, minor: %d\n", xrandr_major, xrandr_minor);
 257         /* retrieve modes */
 258         real_xrandr_sizes = pXRRSizes(gdi_display, DefaultScreen(gdi_display), &real_xrandr_sizes_count);
 259         ok = (real_xrandr_sizes_count>0);
 260     }
 261     if (ok)
 262     {
 263         TRACE("XRandR: found %u resolutions sizes\n", real_xrandr_sizes_count);
 264         real_xrandr_rates = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(short *) * real_xrandr_sizes_count);
 265         real_xrandr_rates_count = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(int) * real_xrandr_sizes_count);
 266         for (i=0; i < real_xrandr_sizes_count; i++)
 267         {
 268             real_xrandr_rates[i] = pXRRRates (gdi_display, DefaultScreen(gdi_display), i, &(real_xrandr_rates_count[i]));
 269             TRACE("- at %d: %dx%d (%d rates):", i, real_xrandr_sizes[i].width, real_xrandr_sizes[i].height, real_xrandr_rates_count[i]);
 270             if (real_xrandr_rates_count[i])
 271             {
 272                 int j;
 273                 nmodes += real_xrandr_rates_count[i];
 274                 for (j = 0; j < real_xrandr_rates_count[i]; ++j) {
 275                   if (j > 0) TRACE(",");
 276                   TRACE("  %d", real_xrandr_rates[i][j]);
 277                 }
 278             }
 279             else
 280             {
 281                 nmodes++;
 282                 TRACE(" <default>");
 283             }
 284             TRACE(" Hz\n");
 285         }
 286     }
 287     wine_tsx11_unlock();
 288     if (!ok) return;
 289
 290     real_xrandr_modes_count = nmodes;
 291     TRACE("XRandR modes: count=%d\n", nmodes);
 292
 293     dd_modes = X11DRV_Settings_SetHandlers("XRandR",
 294                                            X11DRV_XRandR_GetCurrentMode,
 295                                            X11DRV_XRandR_SetCurrentMode,
 296                                            nmodes, 1);
 297     make_modes();
 298     X11DRV_Settings_AddDepthModes();
 299     dd_mode_count = X11DRV_Settings_GetModeCount();
 300
 301     TRACE("Available DD modes: count=%d\n", dd_mode_count);
 302     TRACE("Enabling XRandR\n");
 303 }
 304
 305 #endif /* SONAME_LIBXRANDR */