diff options
| -rw-r--r-- | src/Xge.c | 107 |
1 files changed, 55 insertions, 52 deletions
@@ -1,26 +1,29 @@ /* - * Copyright © 2007 Peter Hutterer + * Copyright © 2007-2008 Peter Hutterer * - * 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, and that the name of the author not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. The author makes no - * representations about the suitability of this software for any purpose. It - * is provided "as is" without express or implied warranty. + * 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, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: * - * THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR - * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, - * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER - * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. + * The above copyright notice and this permission notice (including the next + * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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. + * + * Authors: Peter Hutterer, University of South Australia, NICTA */ -/* +/* * XGE is an extension to re-use a single opcode for multiple events, * depending on the extension. XGE allows events >32 bytes. */ @@ -63,8 +66,8 @@ extern XExtDisplayInfo* _xgeFindDisplay(Display*); static Bool _xgeWireToEvent(Display*, XEvent*, xEvent*); Status _xgeEventToWire(Display*, XEvent*, xEvent*); static int _xgeDpyClose(Display*, XExtCodes*); -static XExtensionVersion* _xgeGetExtensionVersion(Display*, - _Xconst char*, +static XExtensionVersion* _xgeGetExtensionVersion(Display*, + _Xconst char*, XExtDisplayInfo*); static Bool _xgeCheckExtension(Display* dpy, XExtDisplayInfo* info); @@ -86,30 +89,30 @@ static XExtensionHooks xge_extension_hooks = { }; -XExtDisplayInfo *_xgeFindDisplay(Display *dpy) +XExtDisplayInfo *_xgeFindDisplay(Display *dpy) { - XExtDisplayInfo *dpyinfo; - if (!xge_info) - { - if (!(xge_info = XextCreateExtension())) - return NULL; + XExtDisplayInfo *dpyinfo; + if (!xge_info) + { + if (!(xge_info = XextCreateExtension())) + return NULL; } if (!(dpyinfo = XextFindDisplay (xge_info, dpy))) { - dpyinfo = XextAddDisplay (xge_info, - dpy, + dpyinfo = XextAddDisplay (xge_info, + dpy, xge_extension_name, - &xge_extension_hooks, - 0 /* no events, see below */, + &xge_extension_hooks, + 0 /* no events, see below */, NULL); /* We don't use an extension opcode, so we have to set the handlers * directly. If GenericEvent would be > 64, the job would be done by * XExtAddDisplay */ - XESetWireToEvent (dpy, - GenericEvent, + XESetWireToEvent (dpy, + GenericEvent, xge_extension_hooks.wire_to_event); - XESetEventToWire (dpy, - GenericEvent, + XESetEventToWire (dpy, + GenericEvent, xge_extension_hooks.event_to_wire); } return dpyinfo; @@ -118,7 +121,7 @@ XExtDisplayInfo *_xgeFindDisplay(Display *dpy) /* * Check extension is set up and internal data fields are filled. */ -Bool +Bool _xgeCheckExtInit(Display* dpy, XExtDisplayInfo* info) { LockDisplay(dpy); @@ -127,14 +130,14 @@ _xgeCheckExtInit(Display* dpy, XExtDisplayInfo* info) goto cleanup; } - if (!info->data) + if (!info->data) { XGEData* data = (XGEData*)Xmalloc(sizeof(XGEData)); if (!data) { goto cleanup; } /* get version from server */ - data->vers = + data->vers = _xgeGetExtensionVersion(dpy, "Generic Event Extension", info); data->extensions = NULL; info->data = (XPointer)data; @@ -149,7 +152,7 @@ cleanup: } /* Return 1 if XGE extension exists, 0 otherwise. */ -static Bool +static Bool _xgeCheckExtension(Display* dpy, XExtDisplayInfo* info) { XextCheckExtension(dpy, info, xge_extension_name, False); @@ -159,8 +162,8 @@ _xgeCheckExtension(Display* dpy, XExtDisplayInfo* info) /* Retrieve XGE version number from server. */ static XExtensionVersion* -_xgeGetExtensionVersion(Display* dpy, - _Xconst char* name, +_xgeGetExtensionVersion(Display* dpy, + _Xconst char* name, XExtDisplayInfo*info) { xGEQueryVersionReply rep; @@ -173,7 +176,7 @@ _xgeGetExtensionVersion(Display* dpy, req->majorVersion = GE_MAJOR; req->minorVersion = GE_MINOR; - if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) + if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) { Xfree(info); return NULL; @@ -188,7 +191,7 @@ _xgeGetExtensionVersion(Display* dpy, /* * Display closing routine. */ - + static int _xgeDpyClose(Display* dpy, XExtCodes* codes) { @@ -199,7 +202,7 @@ _xgeDpyClose(Display* dpy, XExtCodes* codes) if (xge_data->extensions) { - XGEExtList current, next; + XGEExtList current, next; current = xge_data->extensions; while(current) { @@ -217,7 +220,7 @@ _xgeDpyClose(Display* dpy, XExtCodes* codes) } /* - * protocol to Xlib event conversion routine. + * protocol to Xlib event conversion routine. */ static Bool _xgeWireToEvent(Display* dpy, XEvent* re, xEvent *event) @@ -229,7 +232,7 @@ _xgeWireToEvent(Display* dpy, XEvent* re, xEvent *event) return False; /* _xgeCheckExtInit() calls LockDisplay, leading to a SIGABRT. - Well, I guess we don't need the data we get in CheckExtInit anyway + Well, I guess we don't need the data we get in CheckExtInit anyway if (!_xgeCheckExtInit(dpy, info)) return False; */ @@ -246,14 +249,14 @@ _xgeWireToEvent(Display* dpy, XEvent* re, xEvent *event) it = it->next; } - fprintf(stderr, + fprintf(stderr, "_xgeWireToEvent: Unknown extension %d, this should never happen.\n", extension); return False; } /* - * xlib event to protocol conversion routine. + * xlib event to protocol conversion routine. */ Status _xgeEventToWire(Display* dpy, XEvent* re, xEvent* event) @@ -276,7 +279,7 @@ _xgeEventToWire(Display* dpy, XEvent* re, xEvent* event) it = it->next; } - fprintf(stderr, + fprintf(stderr, "_xgeEventToWire: Unknown extension %d, this should never happen.\n", extension); @@ -320,11 +323,11 @@ xgeExtRegister(Display* dpy, int offset, XExtensionHooks* callbacks) /* Client interfaces */ /***********************************************************************/ -/* Set event_base and error_base to the matching values for XGE. +/* Set event_base and error_base to the matching values for XGE. * Note that since XGE doesn't use any errors and events, the actual return * value is of limited use. */ -Bool +Bool XGEQueryExtension(Display* dpy, int* event_base, int* error_base) { XExtDisplayInfo* info = _xgeFindDisplay(dpy); @@ -336,9 +339,9 @@ XGEQueryExtension(Display* dpy, int* event_base, int* error_base) return True; } -/* Get XGE version number. +/* Get XGE version number. * Doesn't actually get it from server, that should have been done beforehand - * already + * already */ Bool XGEQueryVersion(Display* dpy, |