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-rw-r--r--src/nativewindow/native/x11/Xinerama.c316
1 files changed, 316 insertions, 0 deletions
diff --git a/src/nativewindow/native/x11/Xinerama.c b/src/nativewindow/native/x11/Xinerama.c
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index 000000000..98dcfe095
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+++ b/src/nativewindow/native/x11/Xinerama.c
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+/* $TOG: XPanoramiX.c /main/2 1997/11/16 08:45:41 kaleb $ */
+/****************************************************************
+* *
+* Copyright (c) Digital Equipment Corporation, 1991, 1997 *
+* *
+* All Rights Reserved. Unpublished rights reserved under *
+* the copyright laws of the United States. *
+* *
+* The software contained on this media is proprietary to *
+* and embodies the confidential technology of Digital *
+* Equipment Corporation. Possession, use, duplication or *
+* dissemination of the software and media is authorized only *
+* pursuant to a valid written license from Digital Equipment *
+* Corporation. *
+* *
+* RESTRICTED RIGHTS LEGEND Use, duplication, or disclosure *
+* by the U.S. Government is subject to restrictions as set *
+* forth in Subparagraph (c)(1)(ii) of DFARS 252.227-7013, *
+* or in FAR 52.227-19, as applicable. *
+* *
+*****************************************************************/
+/* $XFree86: xc/lib/Xinerama/Xinerama.c,v 1.1 2000/02/27 23:10:04 mvojkovi Exp $ */
+
+#ifndef __linux__
+ #error This file should only be built under Linux
+#endif
+
+#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;
+ CARD32 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;
+}
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