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/* $XdotOrg$ */
/*************************************************************************
*
* Copyright (c) 1999,2002 Hewlett-Packard Company
* Copyright (c) 1999,2002 IBM Corporation
* Copyright (c) 1999,2002 Hummingbird Communications Ltd.
* Copyright (c) 1999,2002 Silicon Graphics, Inc.
* Copyright (c) 1999,2002 Sun Microsystems, Inc.
* Copyright (c) 1999,2002 The Open Group
*
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, provided that the above copyright notice(s) and this
* permission notice appear in all copies of the Software and that both the
* above copyright notice(s) and this permission notice appear in supporting
* documentation.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR
* ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR
* ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
* WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*
* Except as contained in this notice, the name of a copyright holder shall
* not be used in advertising or otherwise to promote the sale, use or other
* dealings in this Software without prior written authorization of the
* copyright holder.
*
*************************************************************************/
#define NEED_EVENTS
#define NEED_REPLIES
#include <stdio.h>
#include <X11/Xlibint.h>
#include <X11/Xutil.h>
#include <X11/extensions/Xext.h>
#include <X11/extensions/extutil.h>
#include <X11/extensions/xineramaProto.h>
#include <X11/extensions/Xinerama.h>
static XExtensionInfo _xinerama_ext_info_data;
static XExtensionInfo *xinerama_ext_info = &_xinerama_ext_info_data;
static char *xinerama_extension_name = XINERAMA_PROTOCOL_NAME;
#define XineramaCheckExtension(dpy,i,val) \
XextCheckExtension (dpy, i, xinerama_extension_name, val)
static XEXT_GENERATE_CLOSE_DISPLAY (close_display, xinerama_ext_info)
static XExtensionHooks xinerama_extension_hooks = {
NULL, /* create_gc */
NULL, /* copy_gc */
NULL, /* flush_gc */
NULL, /* free_gc */
NULL, /* create_font */
NULL, /* free_font */
close_display, /* close_display */
NULL, /* wire_to_event */
NULL, /* event_to_wire */
NULL, /* error */
NULL, /* error_string */
};
static XEXT_GENERATE_FIND_DISPLAY (find_display, xinerama_ext_info,
xinerama_extension_name,
&xinerama_extension_hooks,
0, NULL)
Bool XineramaQueryExtension (
Display *dpy,
int *event_basep,
int *error_basep
)
{
XExtDisplayInfo *info = find_display (dpy);
if (XextHasExtension(info)) {
*event_basep = info->codes->first_event;
*error_basep = info->codes->first_error;
return True;
} else {
return False;
}
}
Status XineramaQueryVersion(
Display *dpy,
int *major_version,
int *minor_version
)
{
XExtDisplayInfo *info = find_display (dpy);
xXineramaQueryVersionReq *req;
xXineramaQueryVersionReply rep;
XineramaCheckExtension (dpy, info, 0);
LockDisplay (dpy);
GetReq (XineramaQueryVersion, req);
req->reqType = info->codes->major_opcode;
req->XineramaReqType = X_XineramaQueryVersion;
req->client_major_version = XINERAMA_MAJOR_VERSION;
req->client_minor_version = XINERAMA_MINOR_VERSION;
if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) {
UnlockDisplay (dpy);
SyncHandle ();
return 0;
}
*major_version = rep.server_major_version;
*minor_version = rep.server_minor_version;
UnlockDisplay (dpy);
SyncHandle ();
return 1;
}
Bool XineramaActive (
Display *dpy,
Window window
)
{
XExtDisplayInfo *info = find_display (dpy);
xXineramaActiveReply rep;
xXineramaActiveReq *req;
Bool active;
XineramaCheckExtension (dpy, info, False);
LockDisplay (dpy);
GetReq (XineramaActive, req);
req->reqType = info->codes->major_opcode;
req->XineramaReqType = X_XineramaActive;
req->window = window;
if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) {
UnlockDisplay (dpy);
SyncHandle ();
return False;
}
active = rep.active;
UnlockDisplay (dpy);
SyncHandle ();
return active;
}
Status XineramaGetData(
Display *dpy,
Window window,
XRectangle **framebuffer_rects,
int *number_framebuffers
)
{
XExtDisplayInfo *info = find_display (dpy);
xXineramaGetDataReq *req;
xXineramaGetDataReply rep;
XRectangle *rects;
int result = 0;
*number_framebuffers = 0;
*framebuffer_rects = NULL;
XineramaCheckExtension (dpy, info, 0);
LockDisplay (dpy);
GetReq (XineramaGetData, req);
req->reqType = info->codes->major_opcode;
req->XineramaReqType = X_XineramaGetData;
req->window = window;
if (!_XReply (dpy, (xReply *) &rep, 0, xFalse)) {
UnlockDisplay (dpy);
SyncHandle ();
return 0;
}
if(rep.num_rects) {
if((rects = Xmalloc(sizeof(XRectangle) * rep.num_rects))) {
xXineramaRectangle scratch;
int i;
for(i = 0; i < rep.num_rects; i++) {
_XRead(dpy, (char*)&scratch, sz_xXineramaRectangle);
rects[i].x = scratch.x;
rects[i].y = scratch.y;
rects[i].width = scratch.width;
rects[i].height = scratch.height;
}
*framebuffer_rects = rects;
*number_framebuffers = rep.num_rects;
result = 1;
} else {
_XEatData(dpy, rep.length << 2);
}
}
UnlockDisplay (dpy);
SyncHandle ();
return result;
}
#define HINT_NAME "XINERAMA_CENTER_HINT"
#define HINT_TYPE "INTEGER"
Status XineramaGetCenterHint (
Display *dpy,
Window root,
int *x,
int *y
)
{
XExtDisplayInfo *info = find_display (dpy);
Atom atom, type, actual_type;
unsigned long nitems, bytes_after;
int actual_format, status;
short *prop;
XineramaCheckExtension (dpy, info, 0);
type = XInternAtom(dpy, HINT_TYPE, False);
atom = XInternAtom(dpy, HINT_NAME, True);
if(atom == None) return 0; /* no such atom */
if( (status = XGetWindowProperty(dpy, root, atom, 0, 1, False, type,
&actual_type, &actual_format, &nitems,
&bytes_after, (unsigned char**)(&prop)))
!= Success)
return 0;
if(actual_type == None) return 0; /* no such property */
*x = prop[0];
*y = prop[1];
if (prop) XFree(prop);
return 1;
}
Status XineramaSetCenterHint (
Display *dpy,
Window root,
int x,
int y
)
{
XExtDisplayInfo *info = find_display (dpy);
Atom atom, type;
short data[2];
XineramaCheckExtension (dpy, info, 0);
atom = XInternAtom(dpy, HINT_NAME, False);
type = XInternAtom(dpy, HINT_TYPE, False);
data[0] = x;
data[1] = y;
return XChangeProperty(dpy, root, atom, type, 16, PropModeReplace,
(unsigned char*)data, 2);
}
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