2 * Wine X11drv Xrandr interface
4 * Copyright 2003 Alexander James Pasadyn
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.
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.
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
22 #include "wine/port.h"
26 #ifdef SONAME_LIBXRANDR
29 #include <X11/extensions/Xrandr.h>
38 #include "wine/library.h"
39 #include "wine/debug.h"
41 WINE_DEFAULT_DEBUG_CHANNEL(xrandr);
43 static void *xrandr_handle;
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)
60 static int xrandr_event, xrandr_error, xrandr_major, xrandr_minor;
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;
70 static int load_xrandr(void)
74 if (wine_dlopen(SONAME_LIBXRENDER, RTLD_NOW|RTLD_GLOBAL, NULL, 0) &&
75 (xrandr_handle = wine_dlopen(SONAME_LIBXRANDR, RTLD_NOW, NULL, 0)))
78 #define LOAD_FUNCPTR(f) \
79 if((p##f = wine_dlsym(xrandr_handle, #f, NULL, 0)) == NULL) \
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)
98 if (!r) TRACE("Unable to load function ptrs from XRandR library\n");
103 static int XRandRErrorHandler(Display *dpy, XErrorEvent *event, void *arg)
109 /* create the mode structures */
110 static void make_modes(void)
114 for (i=0; i<real_xrandr_sizes_count; i++)
116 if (real_xrandr_rates_count[i])
118 for (j=0; j < real_xrandr_rates_count[i]; j++)
120 X11DRV_Settings_AddOneMode(real_xrandr_sizes[i].width,
121 real_xrandr_sizes[i].height,
122 0, real_xrandr_rates[i][j]);
127 X11DRV_Settings_AddOneMode(real_xrandr_sizes[i].width,
128 real_xrandr_sizes[i].height,
134 static int X11DRV_XRandR_GetCurrentMode(void)
139 XRRScreenConfiguration *sc;
145 root = RootWindow (gdi_display, DefaultScreen(gdi_display));
146 sc = pXRRGetScreenInfo (gdi_display, root);
147 size = pXRRConfigCurrentConfiguration (sc, &rot);
148 rate = pXRRConfigCurrentRate (sc);
149 pXRRFreeScreenConfigInfo(sc);
151 for (i = 0; i < real_xrandr_modes_count; i++)
153 if ( (dd_modes[i].dwWidth == real_xrandr_sizes[size].width ) &&
154 (dd_modes[i].dwHeight == real_xrandr_sizes[size].height) &&
155 (dd_modes[i].wRefreshRate == rate ) )
163 ERR("In unknown mode, returning default\n");
169 static LONG X11DRV_XRandR_SetCurrentMode(int mode)
174 XRRScreenConfiguration *sc;
175 Status stat = RRSetConfigSuccess;
181 root = RootWindow (gdi_display, DefaultScreen(gdi_display));
182 sc = pXRRGetScreenInfo (gdi_display, root);
183 size = pXRRConfigCurrentConfiguration (sc, &rot);
184 mode = mode%real_xrandr_modes_count;
186 TRACE("Changing Resolution to %dx%d @%d Hz\n",
187 dd_modes[mode].dwWidth,
188 dd_modes[mode].dwHeight,
189 dd_modes[mode].wRefreshRate);
191 for (i = 0; i < real_xrandr_sizes_count; i++)
193 if ( (dd_modes[mode].dwWidth == real_xrandr_sizes[i].width ) &&
194 (dd_modes[mode].dwHeight == real_xrandr_sizes[i].height) )
197 if (real_xrandr_rates_count[i])
199 for (j=0; j < real_xrandr_rates_count[i]; j++)
201 if (dd_modes[mode].wRefreshRate == real_xrandr_rates[i][j])
203 rate = real_xrandr_rates[i][j];
204 TRACE("Resizing X display to %dx%d @%d Hz\n",
205 dd_modes[mode].dwWidth, dd_modes[mode].dwHeight, rate);
206 stat = pXRRSetScreenConfigAndRate (gdi_display, sc, root,
207 size, rot, rate, CurrentTime);
214 TRACE("Resizing X display to %dx%d <default Hz>\n",
215 dd_modes[mode].dwWidth, dd_modes[mode].dwHeight);
216 stat = pXRRSetScreenConfig (gdi_display, sc, root, size, rot, CurrentTime);
221 pXRRFreeScreenConfigInfo(sc);
223 if (stat == RRSetConfigSuccess)
225 X11DRV_resize_desktop( dd_modes[mode].dwWidth, dd_modes[mode].dwHeight );
226 return DISP_CHANGE_SUCCESSFUL;
229 ERR("Resolution change not successful -- perhaps display has changed?\n");
230 return DISP_CHANGE_FAILED;
233 void X11DRV_XRandR_Init(void)
238 if (xrandr_major) return; /* already initialized? */
239 if (!usexrandr) return; /* disabled in config */
240 if (root_window != DefaultRootWindow( gdi_display )) return;
241 if (!load_xrandr()) return; /* can't load the Xrandr library */
243 /* see if Xrandr is available */
245 ok = pXRRQueryExtension(gdi_display, &xrandr_event, &xrandr_error);
248 X11DRV_expect_error(gdi_display, XRandRErrorHandler, NULL);
249 ok = pXRRQueryVersion(gdi_display, &xrandr_major, &xrandr_minor);
250 if (X11DRV_check_error()) ok = FALSE;
254 TRACE("Found XRandR - major: %d, minor: %d\n", xrandr_major, xrandr_minor);
256 real_xrandr_sizes = pXRRSizes(gdi_display, DefaultScreen(gdi_display), &real_xrandr_sizes_count);
257 ok = (real_xrandr_sizes_count>0);
261 TRACE("XRandR: found %u resolutions sizes\n", real_xrandr_sizes_count);
262 real_xrandr_rates = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(short *) * real_xrandr_sizes_count);
263 real_xrandr_rates_count = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(int) * real_xrandr_sizes_count);
264 for (i=0; i < real_xrandr_sizes_count; i++)
266 real_xrandr_rates[i] = pXRRRates (gdi_display, DefaultScreen(gdi_display), i, &(real_xrandr_rates_count[i]));
267 TRACE("- at %d: %dx%d (%d rates):", i, real_xrandr_sizes[i].width, real_xrandr_sizes[i].height, real_xrandr_rates_count[i]);
268 if (real_xrandr_rates_count[i])
271 nmodes += real_xrandr_rates_count[i];
272 for (j = 0; j < real_xrandr_rates_count[i]; ++j) {
273 if (j > 0) TRACE(",");
274 TRACE(" %d", real_xrandr_rates[i][j]);
288 real_xrandr_modes_count = nmodes;
289 TRACE("XRandR modes: count=%d\n", nmodes);
291 dd_modes = X11DRV_Settings_SetHandlers("XRandR",
292 X11DRV_XRandR_GetCurrentMode,
293 X11DRV_XRandR_SetCurrentMode,
296 X11DRV_Settings_AddDepthModes();
297 dd_mode_count = X11DRV_Settings_GetModeCount();
299 TRACE("Available DD modes: count=%d\n", dd_mode_count);
300 TRACE("Enabling XRandR\n");
303 #endif /* SONAME_LIBXRANDR */