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Xinerama.c0100664000413400041340000002213107327056334011751 0ustar  jakubjakub/* $Xorg: XPanoramiX.c,v 1.4 2000/08/17 19:45:51 cpqbld Exp $ */
/*****************************************************************
Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.
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, sublicense, and/or sell
copies of the Software.

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

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.  IN NO EVENT SHALL
DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,
BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the name of Digital Equipment Corporation
shall not be used in advertising or otherwise to promote the sale, use or other
dealings in this Software without prior written authorization from Digital
Equipment Corporation.
******************************************************************/
/* $XFree86: xc/lib/Xinerama/Xinerama.c,v 1.1 2000/02/27 23:10:04 mvojkovi Exp $ */

#define NEED_EVENTS
#define NEED_REPLIES
#include <X11/Xlibint.h>
#include <X11/Xutil.h>
#include "Xext.h"			/* in ../include */
#include "extutil.h"			/* in ../include */
#include "panoramiXext.h"
#include "panoramiXproto.h"		/* in ../include */
#include "Xinerama.h"


static XExtensionInfo _panoramiX_ext_info_data;
static XExtensionInfo *panoramiX_ext_info = &_panoramiX_ext_info_data;
static /* const */ char *panoramiX_extension_name = PANORAMIX_PROTOCOL_NAME;

#define PanoramiXCheckExtension(dpy,i,val) \
  XextCheckExtension (dpy, i, panoramiX_extension_name, val)
#define PanoramiXSimpleCheckExtension(dpy,i) \
  XextSimpleCheckExtension (dpy, i, panoramiX_extension_name)

static int close_display();
static /* const */ XExtensionHooks panoramiX_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, panoramiX_ext_info,
				   panoramiX_extension_name, 
				   &panoramiX_extension_hooks,
				   0, NULL)

static XEXT_GENERATE_CLOSE_DISPLAY (close_display, panoramiX_ext_info)



/****************************************************************************
 *                                                                          *
 *			    PanoramiX public interfaces                         *
 *                                                                          *
 ****************************************************************************/

Bool XPanoramiXQueryExtension (
    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 XPanoramiXQueryVersion(
    Display *dpy,
    int	    *major_versionp, 
    int *minor_versionp
)
{
    XExtDisplayInfo *info = find_display (dpy);
    xPanoramiXQueryVersionReply	    rep;
    register xPanoramiXQueryVersionReq  *req;

    PanoramiXCheckExtension (dpy, info, 0);

    LockDisplay (dpy);
    GetReq (PanoramiXQueryVersion, req);
    req->reqType = info->codes->major_opcode;
    req->panoramiXReqType = X_PanoramiXQueryVersion;
    req->clientMajor = PANORAMIX_MAJOR_VERSION;
    req->clientMinor = PANORAMIX_MINOR_VERSION;
    if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) {
	UnlockDisplay (dpy);
	SyncHandle ();
	return 0;
    }
    *major_versionp = rep.majorVersion;
    *minor_versionp = rep.minorVersion;
    UnlockDisplay (dpy);
    SyncHandle ();
    return 1;
}

XPanoramiXInfo *XPanoramiXAllocInfo(void)
{
	return (XPanoramiXInfo *) Xmalloc (sizeof (XPanoramiXInfo));
}

Status XPanoramiXGetState (
    Display		*dpy,
    Drawable		drawable,
    XPanoramiXInfo	*panoramiX_info
)
{
    XExtDisplayInfo			*info = find_display (dpy);
    xPanoramiXGetStateReply	rep;
    register xPanoramiXGetStateReq	*req;

    PanoramiXCheckExtension (dpy, info, 0);

    LockDisplay (dpy);
    GetReq (PanoramiXGetState, req);
    req->reqType = info->codes->major_opcode;
    req->panoramiXReqType = X_PanoramiXGetState;
    req->window = drawable;
    if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) {
	UnlockDisplay (dpy);
	SyncHandle ();
	return 0;
    }
    UnlockDisplay (dpy);
    SyncHandle ();
    panoramiX_info->window = rep.window;
    panoramiX_info->State = rep.state;
    return 1;
}

Status XPanoramiXGetScreenCount (
    Display		*dpy,
    Drawable		drawable,
    XPanoramiXInfo	*panoramiX_info
)
{
    XExtDisplayInfo			*info = find_display (dpy);
    xPanoramiXGetScreenCountReply	rep;
    register xPanoramiXGetScreenCountReq	*req;

    PanoramiXCheckExtension (dpy, info, 0);

    LockDisplay (dpy);
    GetReq (PanoramiXGetScreenCount, req);
    req->reqType = info->codes->major_opcode;
    req->panoramiXReqType = X_PanoramiXGetScreenCount;
    req->window = drawable;
    if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) {
	UnlockDisplay (dpy);
	SyncHandle ();
	return 0;
    }
    UnlockDisplay (dpy);
    SyncHandle ();
    panoramiX_info->window = rep.window;
    panoramiX_info->ScreenCount = rep.ScreenCount;
    return 1;
}

Status XPanoramiXGetScreenSize (
    Display		*dpy,
    Drawable		drawable,
    int			screen_num,
    XPanoramiXInfo	*panoramiX_info
)
{
    XExtDisplayInfo			*info = find_display (dpy);
    xPanoramiXGetScreenSizeReply	rep;
    register xPanoramiXGetScreenSizeReq	*req;

    PanoramiXCheckExtension (dpy, info, 0);

    LockDisplay (dpy);
    GetReq (PanoramiXGetScreenSize, req);
    req->reqType = info->codes->major_opcode;
    req->panoramiXReqType = X_PanoramiXGetScreenSize;
    req->window = drawable;
    req->screen = screen_num;			/* need to define */ 
    if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) {
	UnlockDisplay (dpy);
	SyncHandle ();
	return 0;
    }
    UnlockDisplay (dpy);
    SyncHandle ();
    panoramiX_info->window = rep.window;
    panoramiX_info->screen = rep.screen;
    panoramiX_info->width =  rep.width;
    panoramiX_info->height = rep.height;
    return 1;
}

/*******************************************************************\
  Alternate interface to make up for shortcomings in the original,
  namely, the omission of the screen origin.  The new interface is
  in the "Xinerama" namespace instead of "PanoramiX".
\*******************************************************************/

Bool XineramaQueryExtension (
   Display *dpy,
   int     *event_base,
   int     *error_base
)
{
   return XPanoramiXQueryExtension(dpy, event_base, error_base);
}

Status XineramaQueryVersion(
   Display *dpy,
   int     *major,
   int     *minor
)
{
   return XPanoramiXQueryVersion(dpy, major, minor);
}

Bool XineramaIsActive(Display *dpy)
{
    xXineramaIsActiveReply	rep;
    xXineramaIsActiveReq  	*req;
    XExtDisplayInfo 		*info = find_display (dpy);

    if(!XextHasExtension(info))
	return False;  /* server doesn't even have the extension */

    LockDisplay (dpy);
    GetReq (XineramaIsActive, req);
    req->reqType = info->codes->major_opcode;
    req->panoramiXReqType = X_XineramaIsActive;
    if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) {
	UnlockDisplay (dpy);
	SyncHandle ();
	return False;
    }
    UnlockDisplay (dpy);
    SyncHandle ();
    return rep.state;
}

#include <stdio.h>

XineramaScreenInfo * 
XineramaQueryScreens(
   Display *dpy,
   int     *number
)
{
    XExtDisplayInfo		*info = find_display (dpy);
    xXineramaQueryScreensReply	rep;
    xXineramaQueryScreensReq	*req;
    XineramaScreenInfo		*scrnInfo = NULL;

    PanoramiXCheckExtension (dpy, info, 0);

    LockDisplay (dpy);
    GetReq (XineramaQueryScreens, req);
    req->reqType = info->codes->major_opcode;
    req->panoramiXReqType = X_XineramaQueryScreens;
    if (!_XReply (dpy, (xReply *) &rep, 0, xFalse)) {
	UnlockDisplay (dpy);
	SyncHandle ();
	return NULL;
    }

    if(rep.number) {
	if((scrnInfo = Xmalloc(sizeof(XineramaScreenInfo) * rep.number))) {
	    xXineramaScreenInfo scratch;
	    int i;

	    for(i = 0; i < rep.number; i++) {
		_XRead(dpy, (char*)(&scratch), sz_XineramaScreenInfo);
		scrnInfo[i].screen_number = i;
		scrnInfo[i].x_org 	  = scratch.x_org;
		scrnInfo[i].y_org 	  = scratch.y_org;
		scrnInfo[i].width 	  = scratch.width;
		scrnInfo[i].height 	  = scratch.height;
	    }

	    *number = rep.number;
	} else
	    _XEatData(dpy, rep.length << 2);
    }

    UnlockDisplay (dpy);
    SyncHandle ();
    return scrnInfo;
}



extutil.h0100664000413400041340000001511407406454270011712 0ustar  jakubjakub/*
 * $Xorg: extutil.h,v 1.4 2001/02/09 02:03:24 xorgcvs Exp $
 *
Copyright 1989, 1998  The Open Group

Permission to use, copy, modify, distribute, and sell this software and its
documentation for any purpose is hereby granted without fee, provided that
the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation.

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

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.  IN NO EVENT SHALL THE
OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the name of The Open Group shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from The Open Group.
 *
 * Author:  Jim Fulton, MIT The Open Group
 * 
 *                     Xlib Extension-Writing Utilities
 *
 * This package contains utilities for writing the client API for various
 * protocol extensions.  THESE INTERFACES ARE NOT PART OF THE X STANDARD AND
 * ARE SUBJECT TO CHANGE!
 */
/* $XFree86: xc/include/extensions/extutil.h,v 1.8 2001/08/19 02:47:49 tsi Exp $ */

#ifndef _EXTUTIL_H_
#define _EXTUTIL_H_

#include <X11/extensions/Xext.h>

/*
 * We need to keep a list of open displays since the Xlib display list isn't
 * public.  We also have to per-display info in a separate block since it isn't
 * stored directly in the Display structure.
 */
typedef struct _XExtDisplayInfo {
    struct _XExtDisplayInfo *next;	/* keep a linked list */
    Display *display;			/* which display this is */
    XExtCodes *codes;			/* the extension protocol codes */
    XPointer data;			/* extra data for extension to use */
} XExtDisplayInfo;

typedef struct _XExtensionInfo {
    XExtDisplayInfo *head;		/* start of list */
    XExtDisplayInfo *cur;		/* most recently used */
    int ndisplays;			/* number of displays */
} XExtensionInfo;

typedef struct _XExtensionHooks {
    int (*create_gc)(
#if NeedNestedPrototypes
	      Display*			/* display */,
	      GC			/* gc */,
	      XExtCodes*		/* codes */
#endif
);
    int (*copy_gc)(
#if NeedNestedPrototypes
	      Display*			/* display */,
              GC			/* gc */,
              XExtCodes*		/* codes */
#endif
);
    int (*flush_gc)(
#if NeedNestedPrototypes
	      Display*			/* display */,
              GC			/* gc */,
              XExtCodes*		/* codes */
#endif
);
    int (*free_gc)(
#if NeedNestedPrototypes
	      Display*			/* display */,
              GC			/* gc */,
              XExtCodes*		/* codes */
#endif
);
    int (*create_font)(
#if NeedNestedPrototypes
	      Display*			/* display */,
              XFontStruct*		/* fs */,
              XExtCodes*		/* codes */
#endif
);
    int (*free_font)(
#if NeedNestedPrototypes
	      Display*			/* display */,
              XFontStruct*		/* fs */,
              XExtCodes*		/* codes */
#endif
);
    int (*close_display)(
#if NeedNestedPrototypes
	      Display*			/* display */,
              XExtCodes*		/* codes */
#endif
);
    Bool (*wire_to_event)(
#if NeedNestedPrototypes
	       Display*			/* display */,
               XEvent*			/* re */,
               xEvent*			/* event */
#endif
);
    Status (*event_to_wire)(
#if NeedNestedPrototypes
	      Display*			/* display */,
              XEvent*			/* re */,
              xEvent*			/* event */
#endif
);
    int (*error)(
#if NeedNestedPrototypes
	      Display*			/* display */,
              xError*			/* err */,
              XExtCodes*		/* codes */,
              int*			/* ret_code */
#endif
);
    char *(*error_string)(
#if NeedNestedPrototypes
	        Display*		/* display */,
                int			/* code */,
                XExtCodes*		/* codes */,
                char*			/* buffer */,
                int			/* nbytes */
#endif
);
} XExtensionHooks;

extern XExtensionInfo *XextCreateExtension(
#if NeedFunctionPrototypes
    void
#endif
);
extern void XextDestroyExtension(
#if NeedFunctionPrototypes
    XExtensionInfo*	/* info */
#endif
);
extern XExtDisplayInfo *XextAddDisplay(
#if NeedFunctionPrototypes
    XExtensionInfo*	/* extinfo */,
    Display*		/* dpy */,
    char*		/* ext_name */,
    XExtensionHooks*	/* hooks */,
    int			/* nevents */,
    XPointer		/* data */
#endif
);
extern int XextRemoveDisplay(
#if NeedFunctionPrototypes
    XExtensionInfo*	/* extinfo */,
    Display*		/* dpy */
#endif
);
extern XExtDisplayInfo *XextFindDisplay(
#if NeedFunctionPrototypes
    XExtensionInfo*	/* extinfo */,
    Display*		/* dpy */
#endif
);

#define XextHasExtension(i) ((i) && ((i)->codes))
#define XextCheckExtension(dpy,i,name,val) \
  if (!XextHasExtension(i)) { XMissingExtension (dpy, name); return val; }
#define XextSimpleCheckExtension(dpy,i,name) \
  if (!XextHasExtension(i)) { XMissingExtension (dpy, name); return; }


/*
 * helper macros to generate code that is common to all extensions; caller
 * should prefix it with static if extension source is in one file; this
 * could be a utility function, but have to stack 6 unused arguments for 
 * something that is called many, many times would be bad.
 */
#define XEXT_GENERATE_FIND_DISPLAY(proc,extinfo,extname,hooks,nev,data) \
XExtDisplayInfo *proc (Display *dpy) \
{ \
    XExtDisplayInfo *dpyinfo; \
    if (!extinfo) { if (!(extinfo = XextCreateExtension())) return NULL; } \
    if (!(dpyinfo = XextFindDisplay (extinfo, dpy))) \
      dpyinfo = XextAddDisplay (extinfo,dpy,extname,hooks,nev,data); \
    return dpyinfo; \
}

#define XEXT_FIND_DISPLAY_PROTO(proc) \
	XExtDisplayInfo *proc(Display *dpy)

#define XEXT_GENERATE_CLOSE_DISPLAY(proc,extinfo) \
int proc (Display *dpy, XExtCodes *codes) \
{ \
    return XextRemoveDisplay (extinfo, dpy); \
}

#define XEXT_CLOSE_DISPLAY_PROTO(proc) \
	int proc(Display *dpy, XExtCodes *codes)

#define XEXT_GENERATE_ERROR_STRING(proc,extname,nerr,errl) \
char *proc (Display *dpy, int code, XExtCodes *codes, char *buf, int n) \
{  \
    code -= codes->first_error;  \
    if (code >= 0 && code < nerr) { \
	char tmp[256]; \
	sprintf (tmp, "%s.%d", extname, code); \
	XGetErrorDatabaseText (dpy, "XProtoError", tmp, errl[code], buf, n); \
	return buf; \
    } \
    return (char *)0; \
}

#define XEXT_ERROR_STRING_PROTO(proc) \
	char *proc(Display *dpy, int code, XExtCodes *codes, char *buf, int n)
#endif