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258 lines
8 KiB
C
258 lines
8 KiB
C
/*
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* Xinerama support
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*
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* Copyright 2006 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <stdarg.h>
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#include <stdlib.h>
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#include <X11/Xlib.h>
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#ifdef HAVE_X11_EXTENSIONS_XINERAMA_H
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#include <X11/extensions/Xinerama.h>
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#endif
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#include "wine/library.h"
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#include "x11drv.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(x11drv);
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static MONITORINFOEXW default_monitor =
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{
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sizeof(default_monitor), /* cbSize */
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{ 0, 0, 0, 0 }, /* rcMonitor */
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{ 0, 0, 0, 0 }, /* rcWork */
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MONITORINFOF_PRIMARY, /* dwFlags */
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{ '\\','\\','.','\\','D','I','S','P','L','A','Y','1',0 } /* szDevice */
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};
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static MONITORINFOEXW *monitors;
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static int nb_monitors;
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static inline MONITORINFOEXW *get_primary(void)
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{
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/* default to 0 if specified primary is invalid */
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int idx = primary_monitor;
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if (idx >= nb_monitors) idx = 0;
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return &monitors[idx];
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}
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static inline HMONITOR index_to_monitor( int index )
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{
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return (HMONITOR)(UINT_PTR)(index + 1);
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}
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static inline int monitor_to_index( HMONITOR handle )
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{
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UINT_PTR index = (UINT_PTR)handle;
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if (index < 1 || index > nb_monitors) return -1;
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return index - 1;
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}
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static void query_work_area( RECT *rc_work )
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{
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Atom type;
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int format;
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unsigned long count, remaining;
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long *work_area;
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if (!XGetWindowProperty( gdi_display, DefaultRootWindow(gdi_display), x11drv_atom(_NET_WORKAREA), 0,
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~0, False, XA_CARDINAL, &type, &format, &count,
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&remaining, (unsigned char **)&work_area ))
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{
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if (type == XA_CARDINAL && format == 32 && count >= 4)
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{
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SetRect( rc_work, work_area[0], work_area[1],
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work_area[0] + work_area[2], work_area[1] + work_area[3] );
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}
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XFree( work_area );
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}
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}
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#ifdef SONAME_LIBXINERAMA
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#define MAKE_FUNCPTR(f) static typeof(f) * p##f
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MAKE_FUNCPTR(XineramaQueryExtension);
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MAKE_FUNCPTR(XineramaQueryScreens);
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static void load_xinerama(void)
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{
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void *handle;
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if (!(handle = wine_dlopen(SONAME_LIBXINERAMA, RTLD_NOW, NULL, 0)))
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{
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WARN( "failed to open %s\n", SONAME_LIBXINERAMA );
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return;
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}
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pXineramaQueryExtension = wine_dlsym( handle, "XineramaQueryExtension", NULL, 0 );
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if (!pXineramaQueryExtension) WARN( "XineramaQueryScreens not found\n" );
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pXineramaQueryScreens = wine_dlsym( handle, "XineramaQueryScreens", NULL, 0 );
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if (!pXineramaQueryScreens) WARN( "XineramaQueryScreens not found\n" );
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}
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static int query_screens(void)
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{
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int i, count, event_base, error_base;
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XineramaScreenInfo *screens;
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RECT rc_work = {0, 0, 0, 0};
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if (!monitors) /* first time around */
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load_xinerama();
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query_work_area( &rc_work );
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if (!pXineramaQueryExtension || !pXineramaQueryScreens ||
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!pXineramaQueryExtension( gdi_display, &event_base, &error_base ) ||
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!(screens = pXineramaQueryScreens( gdi_display, &count ))) return 0;
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if (monitors != &default_monitor) HeapFree( GetProcessHeap(), 0, monitors );
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if ((monitors = HeapAlloc( GetProcessHeap(), 0, count * sizeof(*monitors) )))
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{
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nb_monitors = count;
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for (i = 0; i < nb_monitors; i++)
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{
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monitors[i].cbSize = sizeof( monitors[i] );
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monitors[i].rcMonitor.left = screens[i].x_org;
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monitors[i].rcMonitor.top = screens[i].y_org;
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monitors[i].rcMonitor.right = screens[i].x_org + screens[i].width;
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monitors[i].rcMonitor.bottom = screens[i].y_org + screens[i].height;
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monitors[i].dwFlags = 0;
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if (!IntersectRect( &monitors[i].rcWork, &rc_work, &monitors[i].rcMonitor ))
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monitors[i].rcWork = monitors[i].rcMonitor;
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/* FIXME: using the same device name for all monitors for now */
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lstrcpyW( monitors[i].szDevice, default_monitor.szDevice );
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}
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get_primary()->dwFlags |= MONITORINFOF_PRIMARY;
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}
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else count = 0;
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XFree( screens );
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return count;
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}
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#else /* SONAME_LIBXINERAMA */
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static inline int query_screens(void)
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{
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return 0;
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}
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#endif /* SONAME_LIBXINERAMA */
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void xinerama_init( unsigned int width, unsigned int height )
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{
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MONITORINFOEXW *primary;
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int i;
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RECT rect;
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SetRect( &rect, 0, 0, width, height );
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if (root_window != DefaultRootWindow( gdi_display ) || !query_screens())
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{
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default_monitor.rcWork = default_monitor.rcMonitor = rect;
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if (root_window == DefaultRootWindow( gdi_display ))
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query_work_area( &default_monitor.rcWork );
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nb_monitors = 1;
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monitors = &default_monitor;
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}
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primary = get_primary();
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SetRectEmpty( &virtual_screen_rect );
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/* coordinates (0,0) have to point to the primary monitor origin */
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OffsetRect( &rect, -primary->rcMonitor.left, -primary->rcMonitor.top );
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for (i = 0; i < nb_monitors; i++)
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{
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OffsetRect( &monitors[i].rcMonitor, rect.left, rect.top );
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OffsetRect( &monitors[i].rcWork, rect.left, rect.top );
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UnionRect( &virtual_screen_rect, &virtual_screen_rect, &monitors[i].rcMonitor );
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TRACE( "monitor %p: %s work %s%s\n",
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index_to_monitor(i), wine_dbgstr_rect(&monitors[i].rcMonitor),
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wine_dbgstr_rect(&monitors[i].rcWork),
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(monitors[i].dwFlags & MONITORINFOF_PRIMARY) ? " (primary)" : "" );
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}
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screen_width = primary->rcMonitor.right - primary->rcMonitor.left;
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screen_height = primary->rcMonitor.bottom - primary->rcMonitor.top;
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TRACE( "virtual size: %s primary size: %dx%d\n",
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wine_dbgstr_rect(&virtual_screen_rect), screen_width, screen_height );
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}
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/***********************************************************************
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* X11DRV_GetMonitorInfo (X11DRV.@)
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*/
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BOOL CDECL X11DRV_GetMonitorInfo( HMONITOR handle, LPMONITORINFO info )
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{
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int i = monitor_to_index( handle );
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if (i == -1)
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{
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SetLastError( ERROR_INVALID_HANDLE );
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return FALSE;
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}
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info->rcMonitor = monitors[i].rcMonitor;
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info->rcWork = monitors[i].rcWork;
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info->dwFlags = monitors[i].dwFlags;
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if (info->cbSize >= sizeof(MONITORINFOEXW))
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lstrcpyW( ((MONITORINFOEXW *)info)->szDevice, monitors[i].szDevice );
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return TRUE;
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}
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/***********************************************************************
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* X11DRV_EnumDisplayMonitors (X11DRV.@)
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*/
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BOOL CDECL X11DRV_EnumDisplayMonitors( HDC hdc, LPRECT rect, MONITORENUMPROC proc, LPARAM lp )
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{
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int i;
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if (hdc)
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{
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POINT origin;
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RECT limit;
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if (!GetDCOrgEx( hdc, &origin )) return FALSE;
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if (GetClipBox( hdc, &limit ) == ERROR) return FALSE;
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if (rect && !IntersectRect( &limit, &limit, rect )) return TRUE;
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for (i = 0; i < nb_monitors; i++)
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{
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RECT monrect = monitors[i].rcMonitor;
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OffsetRect( &monrect, -origin.x, -origin.y );
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if (IntersectRect( &monrect, &monrect, &limit ))
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if (!proc( index_to_monitor(i), hdc, &monrect, lp ))
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return FALSE;
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}
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}
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else
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{
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for (i = 0; i < nb_monitors; i++)
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{
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RECT unused;
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if (!rect || IntersectRect( &unused, &monitors[i].rcMonitor, rect ))
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if (!proc( index_to_monitor(i), 0, &monitors[i].rcMonitor, lp ))
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return FALSE;
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}
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}
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return TRUE;
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}
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