Initial revision

1 files changed, 319 insertions, 0 deletions

diff --git a/src/Xinerama.c b/src/Xinerama.c
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--- /dev/null
+++ b/src/Xinerama.c
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+/* $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 1.3 2002/10/16 00:37:31 dawes Exp $ */
+
+#define NEED_EVENTS
+#define NEED_REPLIES
+#include <X11/Xlibint.h>
+#include <X11/Xutil.h>
+#include <X11/extensions/Xext.h>
+#include <X11/extensions/extutil.h>
+#include <X11/extensions/panoramiXext.h>
+#include <X11/extensions/panoramiXproto.h>
+#include <X11/extensions/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;
+}
+
+
+