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134 lines
3.1 KiB
C
134 lines
3.1 KiB
C
/* $Xorg: CvtCache.c,v 1.5 2001/02/09 02:03:52 xorgcvs Exp $ */
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/*
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Copyright 1989, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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*/
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/* $XFree86: xc/lib/Xmu/CvtCache.c,v 3.7 2001/12/14 19:55:39 dawes Exp $ */
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/*
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* Author: Jim Fulton, MIT X Consortium
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*/
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#include <stdio.h>
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#include <X11/Xlib.h>
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#include <X11/Xos.h>
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#include <X11/Xmu/CvtCache.h>
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#include <stdlib.h>
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/*
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* Prototypes
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*/
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static int _CloseDisplay(XmuDisplayQueue*, XmuDisplayQueueEntry*);
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static int _FreeCCDQ(XmuDisplayQueue*);
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static void _InitializeCvtCache(XmuCvtCache*);
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/*
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* Initialization
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*/
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static XmuDisplayQueue *dq = NULL;
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/*
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* internal utility callbacks
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*/
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static int
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_FreeCCDQ(XmuDisplayQueue *q)
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{
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XmuDQDestroy (dq, False);
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dq = NULL;
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return (0);
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}
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static int
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_CloseDisplay(XmuDisplayQueue *q, XmuDisplayQueueEntry *e)
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{
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XmuCvtCache *c;
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if (e && (c = (XmuCvtCache *)(e->data))) {
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_XmuStringToBitmapFreeCache (c);
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/* insert calls to free any cached memory */
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}
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return 0;
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}
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static void
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_InitializeCvtCache(register XmuCvtCache *c)
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{
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_XmuStringToBitmapInitCache (c);
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/* insert calls to init any cached memory */
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}
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/*
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* XmuCCLookupDisplay - return the cache entry for the indicated display;
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* initialize the cache if necessary
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*/
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XmuCvtCache *
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_XmuCCLookupDisplay(Display *dpy)
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{
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XmuDisplayQueueEntry *e;
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/*
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* If no displays have been added before this, create the display queue.
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*/
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if (!dq) {
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dq = XmuDQCreate (_CloseDisplay, _FreeCCDQ, NULL);
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if (!dq) return NULL;
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}
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/*
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* See if the display is already there
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*/
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e = XmuDQLookupDisplay (dq, dpy); /* see if it's there */
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if (!e) { /* else create it */
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XmuCvtCache *c = (XmuCvtCache *) malloc (sizeof (XmuCvtCache));
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if (!c) return NULL;
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/*
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* Add the display to the queue
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*/
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e = XmuDQAddDisplay (dq, dpy, (XPointer) c);
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if (!e) {
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free ((char *) c);
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return NULL;
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}
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/*
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* initialize fields in cache
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*/
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_InitializeCvtCache (c);
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}
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/*
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* got it
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*/
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return (XmuCvtCache *)(e->data);
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}
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