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| -rw-r--r-- | src/Xinerama.c | 319 |
1 files changed, 319 insertions, 0 deletions
diff --git a/src/Xinerama.c b/src/Xinerama.c new file mode 100644 index 0000000..7138613 --- /dev/null +++ b/src/Xinerama.c @@ -0,0 +1,319 @@ +/* $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; +} + + + |