1 files changed, 128 insertions, 0 deletions
diff --git a/src/CvtCache.c b/src/CvtCache.c
new file mode 100644
index 0000000..0239b3e
--- /dev/null
+++ b/src/CvtCache.c
@@ -0,0 +1,128 @@
+/* $Xorg: CvtCache.c,v 1.5 2001/02/09 02:03:52 xorgcvs Exp $ */
+
+/*
+ 
+Copyright 1989, 1998  The Open Group
+
+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.
+
+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 THE
+OPEN GROUP 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.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+*/
+
+/* 
+ * Author:  Jim Fulton, MIT X Consortium
+ */
+
+#include <stdio.h>
+#include <X11/Xlib.h>
+#include <X11/Xos.h>
+#include <X11/Xmu/CvtCache.h>
+
+extern char *malloc();
+
+static XmuDisplayQueue *dq = NULL;
+static int _CloseDisplay(), _FreeCCDQ();
+
+
+
+/*
+ * internal utility callbacks
+ */
+
+_FreeCCDQ (q)
+    XmuDisplayQueue *q;
+{
+    XmuDQDestroy (dq, False);
+    dq = NULL;
+}
+
+
+static int _CloseDisplay (q, e)
+    XmuDisplayQueue *q;
+    XmuDisplayQueueEntry *e;
+{
+    XmuCvtCache *c;
+    extern void _XmuStringToBitmapFreeCache();
+
+    if (e && (c = (XmuCvtCache *)(e->data))) {
+	_XmuStringToBitmapFreeCache (c);
+	/* insert calls to free any cached memory */
+
+    }
+    return 0;
+}
+
+static void _InitializeCvtCache (c)
+    register XmuCvtCache *c;
+{
+    extern void _XmuStringToBitmapInitCache();
+
+    _XmuStringToBitmapInitCache (c);
+    /* insert calls to init any cached memory */
+}
+
+
+/*
+ * XmuCCLookupDisplay - return the cache entry for the indicated display;
+ * initialize the cache if necessary
+ */
+XmuCvtCache *_XmuCCLookupDisplay (dpy)
+    Display *dpy;
+{
+    XmuDisplayQueueEntry *e;
+
+    /*
+     * If no displays have been added before this, create the display queue.
+     */
+    if (!dq) {
+	dq = XmuDQCreate (_CloseDisplay, _FreeCCDQ, NULL);
+	if (!dq) return NULL;
+    }
+    
+    /*
+     * See if the display is already there
+     */
+    e = XmuDQLookupDisplay (dq, dpy);	/* see if it's there */
+    if (!e) {				/* else create it */
+	XmuCvtCache *c = (XmuCvtCache *) malloc (sizeof (XmuCvtCache));
+	if (!c) return NULL;
+
+	/*
+	 * Add the display to the queue
+	 */
+	e = XmuDQAddDisplay (dq, dpy, (XPointer) c);
+	if (!e) {
+	    free ((char *) c);
+	    return NULL;
+	}
+
+	/*
+	 * initialize fields in cache
+	 */
+	_InitializeCvtCache (c);
+    }
+
+    /*
+     * got it
+     */
+    return (XmuCvtCache *)(e->data);
+}
+
+