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wine/dlls/winex11.drv/xrandr.c

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/*
* Wine X11drv Xrandr interface
*
* Copyright 2003 Alexander James Pasadyn
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <string.h>
#include <stdio.h>
#ifdef HAVE_LIBXRANDR
#include <X11/Xlib.h>
#include <X11/extensions/Xrandr.h>
#include "x11drv.h"
#include "xrandr.h"
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "ddrawi.h"
#include "wine/library.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(xrandr);
static void *xrandr_handle;
/* some default values just in case */
#ifndef SONAME_LIBX11
#define SONAME_LIBX11 "libX11.so"
#endif
#ifndef SONAME_LIBXEXT
#define SONAME_LIBXEXT "libXext.so"
#endif
#ifndef SONAME_LIBXRENDER
#define SONAME_LIBXRENDER "libXrender.so"
#endif
#ifndef SONAME_LIBXRANDR
#define SONAME_LIBXRANDR "libXrandr.so"
#endif
#define MAKE_FUNCPTR(f) static typeof(f) * p##f;
MAKE_FUNCPTR(XRRConfigCurrentConfiguration)
MAKE_FUNCPTR(XRRConfigCurrentRate)
MAKE_FUNCPTR(XRRFreeScreenConfigInfo)
MAKE_FUNCPTR(XRRGetScreenInfo)
MAKE_FUNCPTR(XRRQueryExtension)
MAKE_FUNCPTR(XRRQueryVersion)
MAKE_FUNCPTR(XRRRates)
MAKE_FUNCPTR(XRRSetScreenConfig)
MAKE_FUNCPTR(XRRSetScreenConfigAndRate)
MAKE_FUNCPTR(XRRSizes)
#undef MAKE_FUNCPTR
extern int usexrandr;
static int xrandr_event, xrandr_error, xrandr_major, xrandr_minor;
static LPDDHALMODEINFO dd_modes;
static unsigned int dd_mode_count;
static XRRScreenSize *real_xrandr_sizes;
static short **real_xrandr_rates;
static int real_xrandr_sizes_count;
static int *real_xrandr_rates_count;
static unsigned int real_xrandr_modes_count;
static int load_xrandr(void)
{
int r = 0;
if (wine_dlopen(SONAME_LIBX11, RTLD_NOW|RTLD_GLOBAL, NULL, 0) &&
wine_dlopen(SONAME_LIBXEXT, RTLD_NOW|RTLD_GLOBAL, NULL, 0) &&
wine_dlopen(SONAME_LIBXRENDER, RTLD_NOW|RTLD_GLOBAL, NULL, 0) &&
(xrandr_handle = wine_dlopen(SONAME_LIBXRANDR, RTLD_NOW, NULL, 0)))
{
#define LOAD_FUNCPTR(f) \
if((p##f = wine_dlsym(xrandr_handle, #f, NULL, 0)) == NULL) \
goto sym_not_found;
LOAD_FUNCPTR(XRRConfigCurrentConfiguration)
LOAD_FUNCPTR(XRRConfigCurrentRate)
LOAD_FUNCPTR(XRRFreeScreenConfigInfo)
LOAD_FUNCPTR(XRRGetScreenInfo)
LOAD_FUNCPTR(XRRQueryExtension)
LOAD_FUNCPTR(XRRQueryVersion)
LOAD_FUNCPTR(XRRRates)
LOAD_FUNCPTR(XRRSetScreenConfig)
LOAD_FUNCPTR(XRRSetScreenConfigAndRate)
LOAD_FUNCPTR(XRRSizes)
#undef LOAD_FUNCPTR
r = 1; /* success */
sym_not_found:
if (!r) TRACE("Unable to load function ptrs from XRandR library\n");
}
return r;
}
static int XRandRErrorHandler(Display *dpy, XErrorEvent *event, void *arg)
{
return 1;
}
/* create the mode structures */
static void make_modes(void)
{
unsigned int i;
int j;
for (i=0; i<real_xrandr_sizes_count; i++)
{
if (real_xrandr_rates_count[i])
{
for (j=0; j < real_xrandr_rates_count[i]; j++)
{
X11DRV_Settings_AddOneMode(real_xrandr_sizes[i].width,
real_xrandr_sizes[i].height,
0, real_xrandr_rates[i][j]);
}
}
else
{
X11DRV_Settings_AddOneMode(real_xrandr_sizes[i].width,
real_xrandr_sizes[i].height,
0, 0);
}
}
}
static int X11DRV_XRandR_GetCurrentMode(void)
{
SizeID size;
Rotation rot;
Window root;
XRRScreenConfiguration *sc;
short rate;
unsigned int i;
int res = -1;
wine_tsx11_lock();
root = RootWindow (gdi_display, DefaultScreen(gdi_display));
sc = pXRRGetScreenInfo (gdi_display, root);
size = pXRRConfigCurrentConfiguration (sc, &rot);
rate = pXRRConfigCurrentRate (sc);
pXRRFreeScreenConfigInfo(sc);
wine_tsx11_unlock();
for (i = 0; i < real_xrandr_modes_count; i++)
{
if ( (dd_modes[i].dwWidth == real_xrandr_sizes[size].width ) &&
(dd_modes[i].dwHeight == real_xrandr_sizes[size].height) &&
(dd_modes[i].wRefreshRate == rate ) )
{
res = i;
break;
}
}
if (res == -1)
{
ERR("In unknown mode, returning default\n");
res = 0;
}
return res;
}
static LONG X11DRV_XRandR_SetCurrentMode(int mode)
{
SizeID size;
Rotation rot;
Window root;
XRRScreenConfiguration *sc;
Status stat = RRSetConfigSuccess;
short rate;
unsigned int i;
int j;
DWORD dwBpp = screen_depth;
if (dwBpp == 24) dwBpp = 32;
wine_tsx11_lock();
root = RootWindow (gdi_display, DefaultScreen(gdi_display));
sc = pXRRGetScreenInfo (gdi_display, root);
size = pXRRConfigCurrentConfiguration (sc, &rot);
if (dwBpp != dd_modes[mode].dwBPP)
{
FIXME("Cannot change screen BPP from %d to %d\n", dwBpp, dd_modes[mode].dwBPP);
}
mode = mode%real_xrandr_modes_count;
TRACE("Changing Resolution to %dx%d @%d Hz\n",
dd_modes[mode].dwWidth,
dd_modes[mode].dwHeight,
dd_modes[mode].wRefreshRate);
for (i = 0; i < real_xrandr_sizes_count; i++)
{
if ( (dd_modes[mode].dwWidth == real_xrandr_sizes[i].width ) &&
(dd_modes[mode].dwHeight == real_xrandr_sizes[i].height) )
{
size = i;
if (real_xrandr_rates_count[i])
{
for (j=0; j < real_xrandr_rates_count[i]; j++)
{
if (dd_modes[mode].wRefreshRate == real_xrandr_rates[i][j])
{
rate = real_xrandr_rates[i][j];
TRACE("Resizing X display to %dx%d @%d Hz\n",
dd_modes[mode].dwWidth, dd_modes[mode].dwHeight, rate);
stat = pXRRSetScreenConfigAndRate (gdi_display, sc, root,
size, rot, rate, CurrentTime);
break;
}
}
}
else
{
TRACE("Resizing X display to %dx%d <default Hz>\n",
dd_modes[mode].dwWidth, dd_modes[mode].dwHeight);
stat = pXRRSetScreenConfig (gdi_display, sc, root, size, rot, CurrentTime);
}
break;
}
}
pXRRFreeScreenConfigInfo(sc);
wine_tsx11_unlock();
if (stat == RRSetConfigSuccess)
{
X11DRV_handle_desktop_resize( dd_modes[mode].dwWidth, dd_modes[mode].dwHeight );
return DISP_CHANGE_SUCCESSFUL;
}
ERR("Resolution change not successful -- perhaps display has changed?\n");
return DISP_CHANGE_FAILED;
}
void X11DRV_XRandR_Init(void)
{
Bool ok;
int nmodes = 0;
unsigned int i;
if (xrandr_major) return; /* already initialized? */
if (!usexrandr) return; /* disabled in config */
if (root_window != DefaultRootWindow( gdi_display )) return;
if (!load_xrandr()) return; /* can't load the Xrandr library */
/* see if Xrandr is available */
wine_tsx11_lock();
ok = pXRRQueryExtension(gdi_display, &xrandr_event, &xrandr_error);
if (ok)
{
X11DRV_expect_error(gdi_display, XRandRErrorHandler, NULL);
ok = pXRRQueryVersion(gdi_display, &xrandr_major, &xrandr_minor);
if (X11DRV_check_error()) ok = FALSE;
}
if (ok)
{
TRACE("Found XRandR - major: %d, minor: %d\n", xrandr_major, xrandr_minor);
/* retrieve modes */
real_xrandr_sizes = pXRRSizes(gdi_display, DefaultScreen(gdi_display), &real_xrandr_sizes_count);
ok = (real_xrandr_sizes_count>0);
}
if (ok)
{
TRACE("XRandR: found %u resolutions sizes\n", real_xrandr_sizes_count);
real_xrandr_rates = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(short *) * real_xrandr_sizes_count);
real_xrandr_rates_count = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(int) * real_xrandr_sizes_count);
for (i=0; i < real_xrandr_sizes_count; i++)
{
real_xrandr_rates[i] = pXRRRates (gdi_display, DefaultScreen(gdi_display), i, &(real_xrandr_rates_count[i]));
TRACE("- at %u: %dx%d (%d rates):", i, real_xrandr_sizes[i].width, real_xrandr_sizes[i].height, real_xrandr_rates_count[i]);
if (real_xrandr_rates_count[i])
{
int j;
nmodes += real_xrandr_rates_count[i];
for (j = 0; j < real_xrandr_rates_count[i]; ++j) {
if (j > 0) TRACE(",");
TRACE(" %d", real_xrandr_rates[i][j]);
}
}
else
{
nmodes++;
TRACE(" <default>");
}
TRACE(" Hz\n");
}
}
wine_tsx11_unlock();
if (!ok) return;
real_xrandr_modes_count = nmodes;
TRACE("XRandR modes: count=%d\n", nmodes);
dd_modes = X11DRV_Settings_SetHandlers("XRandR",
X11DRV_XRandR_GetCurrentMode,
X11DRV_XRandR_SetCurrentMode,
nmodes, 1);
make_modes();
X11DRV_Settings_AddDepthModes();
dd_mode_count = X11DRV_Settings_GetModeCount();
X11DRV_Settings_SetDefaultMode(0);
TRACE("Available DD modes: count=%d\n", dd_mode_count);
TRACE("Enabling XRandR\n");
}
void X11DRV_XRandR_Cleanup(void)
{
HeapFree(GetProcessHeap(), 0, real_xrandr_rates);
real_xrandr_rates = NULL;
HeapFree(GetProcessHeap(), 0, real_xrandr_rates_count);
real_xrandr_rates_count = NULL;
}
#endif /* HAVE_LIBXRANDR */
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