Sweden-Number/dlls/winex11.drv/xinerama.c

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/*
* Xinerama support
*
* Copyright 2006 Alexandre Julliard
*
* 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 <stdarg.h>
#include <stdlib.h>
#include <X11/Xlib.h>
#ifdef HAVE_X11_EXTENSIONS_XINERAMA_H
#include <X11/extensions/Xinerama.h>
#endif
#include "wine/library.h"
#include "x11drv.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(x11drv);
static MONITORINFOEXW default_monitor =
{
sizeof(default_monitor), /* cbSize */
{ 0, 0, 0, 0 }, /* rcMonitor */
{ 0, 0, 0, 0 }, /* rcWork */
MONITORINFOF_PRIMARY, /* dwFlags */
{ '\\','\\','.','\\','D','I','S','P','L','A','Y','1',0 } /* szDevice */
};
static MONITORINFOEXW *monitors;
static int nb_monitors;
static inline MONITORINFOEXW *get_primary(void)
{
/* default to 0 if specified primary is invalid */
int idx = primary_monitor;
if (idx >= nb_monitors) idx = 0;
return &monitors[idx];
}
static inline HMONITOR index_to_monitor( int index )
{
return (HMONITOR)(UINT_PTR)(index + 1);
}
static inline int monitor_to_index( HMONITOR handle )
{
UINT_PTR index = (UINT_PTR)handle;
if (index < 1 || index > nb_monitors) return -1;
return index - 1;
}
static void query_work_area( RECT *rc_work )
{
Atom type;
int format;
unsigned long count, remaining;
long *work_area;
if (!XGetWindowProperty( gdi_display, DefaultRootWindow(gdi_display), x11drv_atom(_NET_WORKAREA), 0,
~0, False, XA_CARDINAL, &type, &format, &count,
&remaining, (unsigned char **)&work_area ))
{
if (type == XA_CARDINAL && format == 32 && count >= 4)
{
SetRect( rc_work, work_area[0], work_area[1],
work_area[0] + work_area[2], work_area[1] + work_area[3] );
}
XFree( work_area );
}
}
#ifdef SONAME_LIBXINERAMA
#define MAKE_FUNCPTR(f) static typeof(f) * p##f
MAKE_FUNCPTR(XineramaQueryExtension);
MAKE_FUNCPTR(XineramaQueryScreens);
static void load_xinerama(void)
{
void *handle;
if (!(handle = wine_dlopen(SONAME_LIBXINERAMA, RTLD_NOW, NULL, 0)))
{
WARN( "failed to open %s\n", SONAME_LIBXINERAMA );
return;
}
pXineramaQueryExtension = wine_dlsym( handle, "XineramaQueryExtension", NULL, 0 );
if (!pXineramaQueryExtension) WARN( "XineramaQueryScreens not found\n" );
pXineramaQueryScreens = wine_dlsym( handle, "XineramaQueryScreens", NULL, 0 );
if (!pXineramaQueryScreens) WARN( "XineramaQueryScreens not found\n" );
}
static int query_screens(void)
{
int i, count, event_base, error_base;
XineramaScreenInfo *screens;
RECT rc_work = {0, 0, 0, 0};
if (!monitors) /* first time around */
load_xinerama();
query_work_area( &rc_work );
if (!pXineramaQueryExtension || !pXineramaQueryScreens ||
!pXineramaQueryExtension( gdi_display, &event_base, &error_base ) ||
!(screens = pXineramaQueryScreens( gdi_display, &count ))) return 0;
if (monitors != &default_monitor) HeapFree( GetProcessHeap(), 0, monitors );
if ((monitors = HeapAlloc( GetProcessHeap(), 0, count * sizeof(*monitors) )))
{
nb_monitors = count;
for (i = 0; i < nb_monitors; i++)
{
monitors[i].cbSize = sizeof( monitors[i] );
monitors[i].rcMonitor.left = screens[i].x_org;
monitors[i].rcMonitor.top = screens[i].y_org;
monitors[i].rcMonitor.right = screens[i].x_org + screens[i].width;
monitors[i].rcMonitor.bottom = screens[i].y_org + screens[i].height;
monitors[i].dwFlags = 0;
if (!IntersectRect( &monitors[i].rcWork, &rc_work, &monitors[i].rcMonitor ))
monitors[i].rcWork = monitors[i].rcMonitor;
/* FIXME: using the same device name for all monitors for now */
lstrcpyW( monitors[i].szDevice, default_monitor.szDevice );
}
get_primary()->dwFlags |= MONITORINFOF_PRIMARY;
}
else count = 0;
XFree( screens );
return count;
}
#else /* SONAME_LIBXINERAMA */
static inline int query_screens(void)
{
return 0;
}
#endif /* SONAME_LIBXINERAMA */
void xinerama_init( unsigned int width, unsigned int height )
{
MONITORINFOEXW *primary;
int i;
RECT rect;
SetRect( &rect, 0, 0, width, height );
if (root_window != DefaultRootWindow( gdi_display ) || !query_screens())
{
default_monitor.rcWork = default_monitor.rcMonitor = rect;
if (root_window == DefaultRootWindow( gdi_display ))
query_work_area( &default_monitor.rcWork );
nb_monitors = 1;
monitors = &default_monitor;
}
primary = get_primary();
SetRectEmpty( &virtual_screen_rect );
/* coordinates (0,0) have to point to the primary monitor origin */
OffsetRect( &rect, -primary->rcMonitor.left, -primary->rcMonitor.top );
for (i = 0; i < nb_monitors; i++)
{
OffsetRect( &monitors[i].rcMonitor, rect.left, rect.top );
OffsetRect( &monitors[i].rcWork, rect.left, rect.top );
UnionRect( &virtual_screen_rect, &virtual_screen_rect, &monitors[i].rcMonitor );
TRACE( "monitor %p: %s work %s%s\n",
index_to_monitor(i), wine_dbgstr_rect(&monitors[i].rcMonitor),
wine_dbgstr_rect(&monitors[i].rcWork),
(monitors[i].dwFlags & MONITORINFOF_PRIMARY) ? " (primary)" : "" );
}
screen_width = primary->rcMonitor.right - primary->rcMonitor.left;
screen_height = primary->rcMonitor.bottom - primary->rcMonitor.top;
TRACE( "virtual size: %s primary size: %dx%d\n",
wine_dbgstr_rect(&virtual_screen_rect), screen_width, screen_height );
}
/***********************************************************************
* X11DRV_GetMonitorInfo (X11DRV.@)
*/
BOOL CDECL X11DRV_GetMonitorInfo( HMONITOR handle, LPMONITORINFO info )
{
int i = monitor_to_index( handle );
if (i == -1)
{
SetLastError( ERROR_INVALID_HANDLE );
return FALSE;
}
info->rcMonitor = monitors[i].rcMonitor;
info->rcWork = monitors[i].rcWork;
info->dwFlags = monitors[i].dwFlags;
if (info->cbSize >= sizeof(MONITORINFOEXW))
lstrcpyW( ((MONITORINFOEXW *)info)->szDevice, monitors[i].szDevice );
return TRUE;
}
/***********************************************************************
* X11DRV_EnumDisplayMonitors (X11DRV.@)
*/
BOOL CDECL X11DRV_EnumDisplayMonitors( HDC hdc, LPRECT rect, MONITORENUMPROC proc, LPARAM lp )
{
int i;
if (hdc)
{
POINT origin;
RECT limit;
if (!GetDCOrgEx( hdc, &origin )) return FALSE;
if (GetClipBox( hdc, &limit ) == ERROR) return FALSE;
if (rect && !IntersectRect( &limit, &limit, rect )) return TRUE;
for (i = 0; i < nb_monitors; i++)
{
RECT monrect = monitors[i].rcMonitor;
OffsetRect( &monrect, -origin.x, -origin.y );
if (IntersectRect( &monrect, &monrect, &limit ))
if (!proc( index_to_monitor(i), hdc, &monrect, lp ))
return FALSE;
}
}
else
{
for (i = 0; i < nb_monitors; i++)
{
RECT unused;
if (!rect || IntersectRect( &unused, &monitors[i].rcMonitor, rect ))
if (!proc( index_to_monitor(i), 0, &monitors[i].rcMonitor, lp ))
return FALSE;
}
}
return TRUE;
}