/* $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 Unpublished rights reserved under * * the copyright laws of the United States.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 #include /* #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 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; }