dlls/winex11.drv/xrandr.c

   1 /*
   2  * Wine X11drv Xrandr interface
   3  *
   4  * Copyright 2003 Alexander James Pasadyn
   5  * Copyright 2012 Henri Verbeet for CodeWeavers
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24 #include "wine/debug.h"
  25
  26 WINE_DEFAULT_DEBUG_CHANNEL(xrandr);
  27
  28 #ifdef SONAME_LIBXRANDR
  29
  30 #include <X11/Xlib.h>
  31 #include <X11/extensions/Xrandr.h>
  32 #include "x11drv.h"
  33
  34 #include "wine/library.h"
  35
  36 static void *xrandr_handle;
  37
  38 #define MAKE_FUNCPTR(f) static typeof(f) * p##f;
  39 MAKE_FUNCPTR(XRRConfigCurrentConfiguration)
  40 MAKE_FUNCPTR(XRRConfigCurrentRate)
  41 MAKE_FUNCPTR(XRRFreeScreenConfigInfo)
  42 MAKE_FUNCPTR(XRRGetScreenInfo)
  43 MAKE_FUNCPTR(XRRQueryExtension)
  44 MAKE_FUNCPTR(XRRQueryVersion)
  45 MAKE_FUNCPTR(XRRRates)
  46 MAKE_FUNCPTR(XRRSetScreenConfig)
  47 MAKE_FUNCPTR(XRRSetScreenConfigAndRate)
  48 MAKE_FUNCPTR(XRRSizes)
  49
  50 #ifdef HAVE_XRRGETSCREENRESOURCES
  51 MAKE_FUNCPTR(XRRFreeCrtcInfo)
  52 MAKE_FUNCPTR(XRRFreeOutputInfo)
  53 MAKE_FUNCPTR(XRRFreeScreenResources)
  54 MAKE_FUNCPTR(XRRGetCrtcInfo)
  55 MAKE_FUNCPTR(XRRGetOutputInfo)
  56 MAKE_FUNCPTR(XRRGetScreenResources)
  57 MAKE_FUNCPTR(XRRSetCrtcConfig)
  58 static typeof(XRRGetScreenResources) *pXRRGetScreenResourcesCurrent;
  59 static RRMode *xrandr12_modes;
  60 #endif
  61
  62 #undef MAKE_FUNCPTR
  63
  64 extern int usexrandr;
  65
  66 static struct x11drv_mode_info *dd_modes;
  67 static SizeID *xrandr10_modes;
  68 static unsigned int xrandr_mode_count;
  69
  70 static int load_xrandr(void)
  71 {
  72     int r = 0;
  73
  74     if (wine_dlopen(SONAME_LIBXRENDER, RTLD_NOW|RTLD_GLOBAL, NULL, 0) &&
  75         (xrandr_handle = wine_dlopen(SONAME_LIBXRANDR, RTLD_NOW, NULL, 0)))
  76     {
  77
  78 #define LOAD_FUNCPTR(f) \
  79         if((p##f = wine_dlsym(xrandr_handle, #f, NULL, 0)) == NULL) \
  80             goto sym_not_found;
  81
  82         LOAD_FUNCPTR(XRRConfigCurrentConfiguration)
  83         LOAD_FUNCPTR(XRRConfigCurrentRate)
  84         LOAD_FUNCPTR(XRRFreeScreenConfigInfo)
  85         LOAD_FUNCPTR(XRRGetScreenInfo)
  86         LOAD_FUNCPTR(XRRQueryExtension)
  87         LOAD_FUNCPTR(XRRQueryVersion)
  88         LOAD_FUNCPTR(XRRRates)
  89         LOAD_FUNCPTR(XRRSetScreenConfig)
  90         LOAD_FUNCPTR(XRRSetScreenConfigAndRate)
  91         LOAD_FUNCPTR(XRRSizes)
  92         r = 1;
  93
  94 #ifdef HAVE_XRRGETSCREENRESOURCES
  95         LOAD_FUNCPTR(XRRFreeCrtcInfo)
  96         LOAD_FUNCPTR(XRRFreeOutputInfo)
  97         LOAD_FUNCPTR(XRRFreeScreenResources)
  98         LOAD_FUNCPTR(XRRGetCrtcInfo)
  99         LOAD_FUNCPTR(XRRGetOutputInfo)
 100         LOAD_FUNCPTR(XRRGetScreenResources)
 101         LOAD_FUNCPTR(XRRSetCrtcConfig)
 102         r = 2;
 103 #endif
 104 #undef LOAD_FUNCPTR
 105
 106 sym_not_found:
 107         if (!r)  TRACE("Unable to load function ptrs from XRandR library\n");
 108     }
 109     return r;
 110 }
 111
 112 static int XRandRErrorHandler(Display *dpy, XErrorEvent *event, void *arg)
 113 {
 114     return 1;
 115 }
 116
 117 static int xrandr10_get_current_mode(void)
 118 {
 119     SizeID size;
 120     Rotation rot;
 121     XRRScreenConfiguration *sc;
 122     short rate;
 123     unsigned int i;
 124     int res = -1;
 125
 126     sc = pXRRGetScreenInfo (gdi_display, DefaultRootWindow( gdi_display ));
 127     size = pXRRConfigCurrentConfiguration (sc, &rot);
 128     rate = pXRRConfigCurrentRate (sc);
 129     pXRRFreeScreenConfigInfo(sc);
 130
 131     for (i = 0; i < xrandr_mode_count; ++i)
 132     {
 133         if (xrandr10_modes[i] == size && dd_modes[i].refresh_rate == rate)
 134         {
 135             res = i;
 136             break;
 137         }
 138     }
 139     if (res == -1)
 140     {
 141         ERR("In unknown mode, returning default\n");
 142         res = 0;
 143     }
 144     return res;
 145 }
 146
 147 static LONG xrandr10_set_current_mode( int mode )
 148 {
 149     SizeID size;
 150     Rotation rot;
 151     Window root;
 152     XRRScreenConfiguration *sc;
 153     Status stat;
 154     short rate;
 155
 156     root = DefaultRootWindow( gdi_display );
 157     sc = pXRRGetScreenInfo (gdi_display, root);
 158     size = pXRRConfigCurrentConfiguration (sc, &rot);
 159     mode = mode % xrandr_mode_count;
 160
 161     TRACE("Changing Resolution to %dx%d @%d Hz\n",
 162           dd_modes[mode].width,
 163           dd_modes[mode].height,
 164           dd_modes[mode].refresh_rate);
 165
 166     size = xrandr10_modes[mode];
 167     rate = dd_modes[mode].refresh_rate;
 168
 169     if (rate)
 170         stat = pXRRSetScreenConfigAndRate( gdi_display, sc, root, size, rot, rate, CurrentTime );
 171     else
 172         stat = pXRRSetScreenConfig( gdi_display, sc, root, size, rot, CurrentTime );
 173
 174     pXRRFreeScreenConfigInfo(sc);
 175
 176     if (stat == RRSetConfigSuccess)
 177     {
 178         X11DRV_resize_desktop( dd_modes[mode].width, dd_modes[mode].height );
 179         return DISP_CHANGE_SUCCESSFUL;
 180     }
 181
 182     ERR("Resolution change not successful -- perhaps display has changed?\n");
 183     return DISP_CHANGE_FAILED;
 184 }
 185
 186 static void xrandr10_init_modes(void)
 187 {
 188     XRRScreenSize *sizes;
 189     int sizes_count;
 190     int i, j, nmodes = 0;
 191
 192     sizes = pXRRSizes( gdi_display, DefaultScreen(gdi_display), &sizes_count );
 193     if (sizes_count <= 0) return;
 194
 195     TRACE("XRandR: found %d sizes.\n", sizes_count);
 196     for (i = 0; i < sizes_count; ++i)
 197     {
 198         int rates_count;
 199         short *rates;
 200
 201         rates = pXRRRates( gdi_display, DefaultScreen(gdi_display), i, &rates_count );
 202         TRACE("- at %d: %dx%d (%d rates):", i, sizes[i].width, sizes[i].height, rates_count);
 203         if (rates_count)
 204         {
 205             nmodes += rates_count;
 206             for (j = 0; j < rates_count; ++j)
 207             {
 208                 if (j > 0)
 209                     TRACE(",");
 210                 TRACE("  %d", rates[j]);
 211             }
 212         }
 213         else
 214         {
 215             ++nmodes;
 216             TRACE(" <default>");
 217         }
 218         TRACE(" Hz\n");
 219     }
 220
 221     TRACE("XRandR modes: count=%d\n", nmodes);
 222
 223     if (!(xrandr10_modes = HeapAlloc( GetProcessHeap(), 0, sizeof(*xrandr10_modes) * nmodes )))
 224     {
 225         ERR("Failed to allocate xrandr mode info array.\n");
 226         return;
 227     }
 228
 229     dd_modes = X11DRV_Settings_SetHandlers( "XRandR 1.0",
 230                                             xrandr10_get_current_mode,
 231                                             xrandr10_set_current_mode,
 232                                             nmodes, 1 );
 233
 234     xrandr_mode_count = 0;
 235     for (i = 0; i < sizes_count; ++i)
 236     {
 237         int rates_count;
 238         short *rates;
 239
 240         rates = pXRRRates( gdi_display, DefaultScreen(gdi_display), i, &rates_count );
 241
 242         if (rates_count)
 243         {
 244             for (j = 0; j < rates_count; ++j)
 245             {
 246                 X11DRV_Settings_AddOneMode( sizes[i].width, sizes[i].height, 0, rates[j] );
 247                 xrandr10_modes[xrandr_mode_count++] = i;
 248             }
 249         }
 250         else
 251         {
 252             X11DRV_Settings_AddOneMode( sizes[i].width, sizes[i].height, 0, 0 );
 253             xrandr10_modes[xrandr_mode_count++] = i;
 254         }
 255     }
 256
 257     X11DRV_Settings_AddDepthModes();
 258     nmodes = X11DRV_Settings_GetModeCount();
 259
 260     TRACE("Available DD modes: count=%d\n", nmodes);
 261     TRACE("Enabling XRandR\n");
 262 }
 263
 264 #ifdef HAVE_XRRGETSCREENRESOURCES
 265
 266 static int xrandr12_get_current_mode(void)
 267 {
 268     XRRScreenResources *resources;
 269     XRRCrtcInfo *crtc_info;
 270     int i, ret = -1;
 271
 272     if (!(resources = pXRRGetScreenResourcesCurrent( gdi_display, root_window )))
 273     {
 274         ERR("Failed to get screen resources.\n");
 275         return 0;
 276     }
 277
 278     if (!resources->ncrtc || !(crtc_info = pXRRGetCrtcInfo( gdi_display, resources, resources->crtcs[0] )))
 279     {
 280         pXRRFreeScreenResources( resources );
 281         ERR("Failed to get CRTC info.\n");
 282         return 0;
 283     }
 284
 285     TRACE("CRTC 0: mode %#lx, %ux%u+%d+%d.\n", crtc_info->mode,
 286           crtc_info->width, crtc_info->height, crtc_info->x, crtc_info->y);
 287
 288     for (i = 0; i < xrandr_mode_count; ++i)
 289     {
 290         if (xrandr12_modes[i] == crtc_info->mode)
 291         {
 292             ret = i;
 293             break;
 294         }
 295     }
 296
 297     pXRRFreeCrtcInfo( crtc_info );
 298     pXRRFreeScreenResources( resources );
 299
 300     if (ret == -1)
 301     {
 302         ERR("Unknown mode, returning default.\n");
 303         ret = 0;
 304     }
 305
 306     return ret;
 307 }
 308
 309 static LONG xrandr12_set_current_mode( int mode )
 310 {
 311     Status status = RRSetConfigFailed;
 312     XRRScreenResources *resources;
 313     XRRCrtcInfo *crtc_info;
 314
 315     mode = mode % xrandr_mode_count;
 316
 317     if (!(resources = pXRRGetScreenResourcesCurrent( gdi_display, root_window )))
 318     {
 319         ERR("Failed to get screen resources.\n");
 320         return DISP_CHANGE_FAILED;
 321     }
 322
 323     if (!resources->ncrtc || !(crtc_info = pXRRGetCrtcInfo( gdi_display, resources, resources->crtcs[0] )))
 324     {
 325         pXRRFreeScreenResources( resources );
 326         ERR("Failed to get CRTC info.\n");
 327         return DISP_CHANGE_FAILED;
 328     }
 329
 330     TRACE("CRTC 0: mode %#lx, %ux%u+%d+%d.\n", crtc_info->mode,
 331           crtc_info->width, crtc_info->height, crtc_info->x, crtc_info->y);
 332
 333     status = pXRRSetCrtcConfig( gdi_display, resources, resources->crtcs[0], CurrentTime, crtc_info->x,
 334             crtc_info->y, xrandr12_modes[mode], crtc_info->rotation, crtc_info->outputs, crtc_info->noutput );
 335
 336     pXRRFreeCrtcInfo( crtc_info );
 337     pXRRFreeScreenResources( resources );
 338
 339     if (status != RRSetConfigSuccess)
 340     {
 341         ERR("Resolution change not successful -- perhaps display has changed?\n");
 342         return DISP_CHANGE_FAILED;
 343     }
 344
 345     X11DRV_resize_desktop( dd_modes[mode].width, dd_modes[mode].height );
 346     return DISP_CHANGE_SUCCESSFUL;
 347 }
 348
 349 static int xrandr12_init_modes(void)
 350 {
 351     XRRScreenResources *resources;
 352     XRROutputInfo *output_info;
 353     XRRCrtcInfo *crtc_info;
 354     int ret = -1;
 355     int i, j;
 356
 357     if (!(resources = pXRRGetScreenResourcesCurrent( gdi_display, root_window )))
 358     {
 359         ERR("Failed to get screen resources.\n");
 360         return ret;
 361     }
 362
 363     if (!resources->ncrtc)
 364     {
 365         pXRRFreeScreenResources( resources );
 366         if (!(resources = pXRRGetScreenResources( gdi_display, root_window )))
 367         {
 368             ERR("Failed to get screen resources.\n");
 369             return ret;
 370         }
 371     }
 372
 373     if (!resources->ncrtc || !(crtc_info = pXRRGetCrtcInfo( gdi_display, resources, resources->crtcs[0] )))
 374     {
 375         pXRRFreeScreenResources( resources );
 376         ERR("Failed to get CRTC info.\n");
 377         return ret;
 378     }
 379
 380     TRACE("CRTC 0: mode %#lx, %ux%u+%d+%d.\n", crtc_info->mode,
 381           crtc_info->width, crtc_info->height, crtc_info->x, crtc_info->y);
 382
 383     if (!crtc_info->noutput || !(output_info = pXRRGetOutputInfo( gdi_display, resources, crtc_info->outputs[0] )))
 384     {
 385         pXRRFreeCrtcInfo( crtc_info );
 386         pXRRFreeScreenResources( resources );
 387         ERR("Failed to get output info.\n");
 388         return ret;
 389     }
 390
 391     TRACE("OUTPUT 0: name %s.\n", debugstr_a(output_info->name));
 392
 393     if (!output_info->nmode)
 394     {
 395         ERR("Output has no modes.\n");
 396         goto done;
 397     }
 398
 399     if (!(xrandr12_modes = HeapAlloc( GetProcessHeap(), 0, sizeof(*xrandr12_modes) * output_info->nmode )))
 400     {
 401         ERR("Failed to allocate xrandr mode info array.\n");
 402         goto done;
 403     }
 404
 405     dd_modes = X11DRV_Settings_SetHandlers( "XRandR 1.2",
 406                                             xrandr12_get_current_mode,
 407                                             xrandr12_set_current_mode,
 408                                             output_info->nmode, 1 );
 409
 410     xrandr_mode_count = 0;
 411     for (i = 0; i < output_info->nmode; ++i)
 412     {
 413         for (j = 0; j < resources->nmode; ++j)
 414         {
 415             XRRModeInfo *mode = &resources->modes[j];
 416
 417             if (mode->id == output_info->modes[i])
 418             {
 419                 unsigned int dots = mode->hTotal * mode->vTotal;
 420                 unsigned int refresh = dots ? (mode->dotClock + dots / 2) / dots : 0;
 421
 422                 TRACE("Adding mode %#lx: %ux%u@%u.\n", mode->id, mode->width, mode->height, refresh);
 423                 X11DRV_Settings_AddOneMode( mode->width, mode->height, 0, refresh );
 424                 xrandr12_modes[xrandr_mode_count++] = mode->id;
 425                 break;
 426             }
 427         }
 428     }
 429
 430     X11DRV_Settings_AddDepthModes();
 431     ret = 0;
 432
 433 done:
 434     pXRRFreeOutputInfo( output_info );
 435     pXRRFreeCrtcInfo( crtc_info );
 436     pXRRFreeScreenResources( resources );
 437     return ret;
 438 }
 439
 440 #endif /* HAVE_XRRGETSCREENRESOURCES */
 441
 442 void X11DRV_XRandR_Init(void)
 443 {
 444     int event_base, error_base, minor, ret;
 445     static int major;
 446     Bool ok;
 447
 448     if (major) return; /* already initialized? */
 449     if (!usexrandr) return; /* disabled in config */
 450     if (root_window != DefaultRootWindow( gdi_display )) return;
 451     if (!(ret = load_xrandr())) return;  /* can't load the Xrandr library */
 452
 453     /* see if Xrandr is available */
 454     if (!pXRRQueryExtension( gdi_display, &event_base, &error_base )) return;
 455     X11DRV_expect_error( gdi_display, XRandRErrorHandler, NULL );
 456     ok = pXRRQueryVersion( gdi_display, &major, &minor );
 457     if (X11DRV_check_error() || !ok) return;
 458
 459     TRACE("Found XRandR %d.%d.\n", major, minor);
 460
 461 #ifdef HAVE_XRRGETSCREENRESOURCES
 462     if (ret >= 2 && (major > 1 || (major == 1 && minor >= 2)))
 463     {
 464         if (major > 1 || (major == 1 && minor >= 3))
 465             pXRRGetScreenResourcesCurrent = wine_dlsym( xrandr_handle, "XRRGetScreenResourcesCurrent", NULL, 0 );
 466         if (!pXRRGetScreenResourcesCurrent)
 467             pXRRGetScreenResourcesCurrent = pXRRGetScreenResources;
 468     }
 469
 470     if (!pXRRGetScreenResourcesCurrent || xrandr12_init_modes() < 0)
 471 #endif
 472         xrandr10_init_modes();
 473 }
 474
 475 #else /* SONAME_LIBXRANDR */
 476
 477 void X11DRV_XRandR_Init(void)
 478 {
 479     TRACE("XRandR support not compiled in.\n");
 480 }
 481
 482 #endif /* SONAME_LIBXRANDR */