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"
#include "wine/heap.h"
#include "wine/unicode.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];
}
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;
}
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 */
static BOOL xinerama_get_gpus( struct x11drv_gpu **new_gpus, int *count )
{
static const WCHAR wine_adapterW[] = {'W','i','n','e',' ','A','d','a','p','t','e','r',0};
struct x11drv_gpu *gpus;
/* Xinerama has no support for GPU, faking one */
gpus = heap_calloc( 1, sizeof(*gpus) );
if (!gpus)
return FALSE;
lstrcpyW( gpus[0].name, wine_adapterW );
*new_gpus = gpus;
*count = 1;
return TRUE;
}
static void xinerama_free_gpus( struct x11drv_gpu *gpus )
{
heap_free( gpus );
}
static BOOL xinerama_get_adapters( ULONG_PTR gpu_id, struct x11drv_adapter **new_adapters, int *count )
{
struct x11drv_adapter *adapters = NULL;
INT index = 0;
INT i, j;
INT primary_index;
BOOL mirrored;
if (gpu_id)
return FALSE;
/* Being lazy, actual adapter count may be less */
adapters = heap_calloc( nb_monitors, sizeof(*adapters) );
if (!adapters)
return FALSE;
primary_index = primary_monitor;
if (primary_index >= nb_monitors)
primary_index = 0;
for (i = 0; i < nb_monitors; i++)
{
mirrored = FALSE;
for (j = 0; j < i; j++)
{
if (EqualRect( &monitors[i].rcMonitor, &monitors[j].rcMonitor) && !IsRectEmpty( &monitors[j].rcMonitor ))
{
mirrored = TRUE;
break;
}
}
/* Mirrored monitors share the same adapter */
if (mirrored)
continue;
/* Use monitor index as id */
adapters[index].id = (ULONG_PTR)i;
if (i == primary_index)
adapters[index].state_flags |= DISPLAY_DEVICE_PRIMARY_DEVICE;
if (!IsRectEmpty( &monitors[i].rcMonitor ))
adapters[index].state_flags |= DISPLAY_DEVICE_ATTACHED_TO_DESKTOP;
index++;
}
/* Primary adapter has to be first */
if (primary_index)
{
struct x11drv_adapter tmp;
tmp = adapters[primary_index];
adapters[primary_index] = adapters[0];
adapters[0] = tmp;
}
*new_adapters = adapters;
*count = index;
return TRUE;
}
static void xinerama_free_adapters( struct x11drv_adapter *adapters )
{
heap_free( adapters );
}
static BOOL xinerama_get_monitors( ULONG_PTR adapter_id, struct x11drv_monitor **new_monitors, int *count )
{
static const WCHAR generic_nonpnp_monitorW[] = {
'G','e','n','e','r','i','c',' ',
'N','o','n','-','P','n','P',' ','M','o','n','i','t','o','r',0};
struct x11drv_monitor *monitor;
INT first = (INT)adapter_id;
INT monitor_count = 0;
INT index = 0;
INT i;
for (i = first; i < nb_monitors; i++)
{
if (i == first
|| (EqualRect( &monitors[i].rcMonitor, &monitors[first].rcMonitor )
&& !IsRectEmpty( &monitors[first].rcMonitor )))
monitor_count++;
}
monitor = heap_calloc( monitor_count, sizeof(*monitor) );
if (!monitor)
return FALSE;
for (i = first; i < nb_monitors; i++)
{
if (i == first
|| (EqualRect( &monitors[i].rcMonitor, &monitors[first].rcMonitor )
&& !IsRectEmpty( &monitors[first].rcMonitor )))
{
lstrcpyW( monitor[index].name, generic_nonpnp_monitorW );
monitor[index].rc_monitor = monitors[i].rcMonitor;
monitor[index].rc_work = monitors[i].rcWork;
/* Xinerama only reports monitors already attached */
monitor[index].state_flags = DISPLAY_DEVICE_ATTACHED;
if (!IsRectEmpty( &monitors[i].rcMonitor ))
monitor[index].state_flags |= DISPLAY_DEVICE_ACTIVE;
index++;
}
}
*new_monitors = monitor;
*count = monitor_count;
return TRUE;
}
static void xinerama_free_monitors( struct x11drv_monitor *monitors )
{
heap_free( monitors );
}
void xinerama_init( unsigned int width, unsigned int height )
{
struct x11drv_display_device_handler handler;
MONITORINFOEXW *primary;
int i;
RECT rect;
if (is_virtual_desktop())
return;
SetRect( &rect, 0, 0, width, height );
if (!query_screens())
{
default_monitor.rcWork = default_monitor.rcMonitor = rect;
query_work_area( &default_monitor.rcWork );
nb_monitors = 1;
monitors = &default_monitor;
}
primary = get_primary();
/* 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 );
TRACE( "monitor 0x%x: %s work %s%s\n",
i, wine_dbgstr_rect(&monitors[i].rcMonitor),
wine_dbgstr_rect(&monitors[i].rcWork),
(monitors[i].dwFlags & MONITORINFOF_PRIMARY) ? " (primary)" : "" );
}
handler.name = "Xinerama";
handler.priority = 100;
handler.get_gpus = xinerama_get_gpus;
handler.get_adapters = xinerama_get_adapters;
handler.get_monitors = xinerama_get_monitors;
handler.free_gpus = xinerama_free_gpus;
handler.free_adapters = xinerama_free_adapters;
handler.free_monitors = xinerama_free_monitors;
handler.register_event_handlers = NULL;
X11DRV_DisplayDevices_SetHandler( &handler );
}