taskmgr: Remove a useless commented line.
[wine.git] / dlls / winex11.drv / xrandr.c
blobc313bab8d009fe80d0ab213600eb5a69e04ba0c8
1 /*
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
21 #include "config.h"
22 #include "wine/port.h"
23 #include <string.h>
24 #include <stdio.h>
26 #ifdef SONAME_LIBXRANDR
28 #include <X11/Xlib.h>
29 #include <X11/extensions/Xrandr.h>
30 #include "x11drv.h"
32 #include "xrandr.h"
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"
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)
56 #undef MAKE_FUNCPTR
58 extern int usexrandr;
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)
72 int r = 0;
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)))
80 #define LOAD_FUNCPTR(f) \
81 if((p##f = wine_dlsym(xrandr_handle, #f, NULL, 0)) == NULL) \
82 goto sym_not_found;
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)
95 #undef LOAD_FUNCPTR
97 r = 1; /* success */
99 sym_not_found:
100 if (!r) TRACE("Unable to load function ptrs from XRandR library\n");
102 return r;
105 static int XRandRErrorHandler(Display *dpy, XErrorEvent *event, void *arg)
107 return 1;
111 /* create the mode structures */
112 static void make_modes(void)
114 int i, j;
116 for (i=0; i<real_xrandr_sizes_count; i++)
118 if (real_xrandr_rates_count[i])
120 for (j=0; j < real_xrandr_rates_count[i]; j++)
122 X11DRV_Settings_AddOneMode(real_xrandr_sizes[i].width,
123 real_xrandr_sizes[i].height,
124 0, real_xrandr_rates[i][j]);
127 else
129 X11DRV_Settings_AddOneMode(real_xrandr_sizes[i].width,
130 real_xrandr_sizes[i].height,
131 0, 0);
136 static int X11DRV_XRandR_GetCurrentMode(void)
138 SizeID size;
139 Rotation rot;
140 Window root;
141 XRRScreenConfiguration *sc;
142 short rate;
143 unsigned int i;
144 int res = -1;
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++)
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 ) )
159 res = i;
160 break;
163 if (res == -1)
165 ERR("In unknown mode, returning default\n");
166 res = 0;
168 return res;
171 static LONG X11DRV_XRandR_SetCurrentMode(int mode)
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;
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;
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);
193 for (i = 0; i < real_xrandr_sizes_count; i++)
195 if ( (dd_modes[mode].dwWidth == real_xrandr_sizes[i].width ) &&
196 (dd_modes[mode].dwHeight == real_xrandr_sizes[i].height) )
198 size = i;
199 if (real_xrandr_rates_count[i])
201 for (j=0; j < real_xrandr_rates_count[i]; j++)
203 if (dd_modes[mode].wRefreshRate == real_xrandr_rates[i][j])
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;
214 else
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);
220 break;
223 pXRRFreeScreenConfigInfo(sc);
224 wine_tsx11_unlock();
225 if (stat == RRSetConfigSuccess)
227 X11DRV_resize_desktop( dd_modes[mode].dwWidth, dd_modes[mode].dwHeight );
228 return DISP_CHANGE_SUCCESSFUL;
231 ERR("Resolution change not successful -- perhaps display has changed?\n");
232 return DISP_CHANGE_FAILED;
235 void X11DRV_XRandR_Init(void)
237 Bool ok;
238 int i, nmodes = 0;
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 */
245 /* see if Xrandr is available */
246 wine_tsx11_lock();
247 ok = pXRRQueryExtension(gdi_display, &xrandr_event, &xrandr_error);
248 if (ok)
250 X11DRV_expect_error(gdi_display, XRandRErrorHandler, NULL);
251 ok = pXRRQueryVersion(gdi_display, &xrandr_major, &xrandr_minor);
252 if (X11DRV_check_error()) ok = FALSE;
254 if (ok)
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);
261 if (ok)
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++)
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])
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]);
279 else
281 nmodes++;
282 TRACE(" <default>");
284 TRACE(" Hz\n");
287 wine_tsx11_unlock();
288 if (!ok) return;
290 real_xrandr_modes_count = nmodes;
291 TRACE("XRandR modes: count=%d\n", nmodes);
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();
301 TRACE("Available DD modes: count=%d\n", dd_mode_count);
302 TRACE("Enabling XRandR\n");
305 #endif /* SONAME_LIBXRANDR */