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-rw-r--r--Xprint/ps/PsCache.c324
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diff --git a/Xprint/ps/PsCache.c b/Xprint/ps/PsCache.c
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+/*
+
+Copyright 1996, 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.
+
+*/
+/*
+ * (c) Copyright 1996 Hewlett-Packard Company
+ * (c) Copyright 1996 International Business Machines Corp.
+ * (c) Copyright 1996, 2000 Sun Microsystems, Inc. All Rights Reserved.
+ * (c) Copyright 1996 Novell, Inc.
+ * (c) Copyright 1996 Digital Equipment Corp.
+ * (c) Copyright 1996 Fujitsu Limited
+ * (c) Copyright 1996 Hitachi, Ltd.
+ *
+ * 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 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 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.
+ *
+ * Except as contained in this notice, the names of the copyright holders
+ * shall not be used in advertising or otherwise to promote the sale, use
+ * or other dealings in this Software without prior written authorization
+ * from said copyright holders.
+ */
+
+/*******************************************************************
+**
+** *********************************************************
+** *
+** * File: PsCache.c
+** *
+** * Contents: Character-caching routines
+** *
+** * Created By: Jay Hobson (Sun MicroSystems)
+** *
+** * Copyright: Copyright 1996 The Open Group, Inc.
+** *
+** *********************************************************
+**
+********************************************************************/
+
+#include "Ps.h"
+#include "gcstruct.h"
+#include "windowstr.h"
+#include "fntfil.h"
+#include "fntfilst.h"
+
+#define GET 0
+#define RESET 1
+
+struct bm_cache_list {
+ struct bm_cache_list *next;
+ struct bm_cache_list *prev;
+ int height;
+ long id;
+ char *pBuffer;
+};
+
+struct bm_cache_head {
+ struct bm_cache_list *head;
+ int width;
+ struct bm_cache_head *next;
+ struct bm_cache_head *prev;
+};
+
+static struct bm_cache_head *bm_cache = NULL;
+
+static long
+PsBmUniqueId(int func)
+{
+ static long unique_id = 0;
+
+ if(func == RESET)
+ {
+ unique_id = 0;
+ return 0;
+ }
+ else
+ return ++unique_id;
+}
+
+int
+PsBmIsImageCached(
+ int gWidth,
+ int gHeight,
+ char *pBuffer)
+{
+ int return_val = 0;
+ struct bm_cache_head *pList = bm_cache;
+
+ while(pList != NULL && !return_val)
+ {
+ if(pList->width == gWidth)
+ {
+ struct bm_cache_list *pItem = pList->head;
+
+ while(pItem != NULL)
+ {
+ if(pItem->height == gHeight)
+ {
+ int length = 4*(gWidth/32+(gWidth%32!=0))*gHeight;
+
+ if(!memcmp(pItem->pBuffer, pBuffer, sizeof(char)*length))
+ {
+ return_val = pItem->id;
+ break;
+ }
+ }
+ else if(pItem->height > gHeight)
+ break;
+
+ pItem = pItem->next;
+ }
+ }
+ else if(pList->width > gWidth)
+ break;
+
+ pList = pList->next;
+ }
+ return return_val;
+}
+
+int
+PsBmPutImageInCache(
+ int gWidth,
+ int gHeight,
+ char *pBuffer)
+{
+ int return_val = 0;
+ struct bm_cache_head *pList = bm_cache;
+ struct bm_cache_list *pNew;
+ int length = 4*(gWidth/32+(gWidth%32!=0))*gHeight;
+
+ if(gWidth == 1 && gHeight == 1 && pBuffer[0] == 0)
+ return return_val;
+
+ pNew = (struct bm_cache_list *)malloc(sizeof(struct bm_cache_list));
+ pNew->next = NULL;
+ pNew->prev = NULL;
+ pNew->height = gHeight;
+ pNew->id = PsBmUniqueId(GET);
+ pNew->pBuffer = (char *)malloc(sizeof(char)*length);
+
+ memcpy(pNew->pBuffer, pBuffer, length);
+
+ while(pList != NULL)
+ {
+ if(pList->width == gWidth)
+ {
+ struct bm_cache_list *pItem = pList->head;
+
+ while(pItem != NULL)
+ {
+ if(pItem->height >= gHeight)
+ {
+ pNew->next = pItem;
+ pNew->prev = pItem->prev;
+ if(pItem->prev != NULL)
+ pItem->prev->next = pNew;
+ else
+ pList->head = pNew;
+ pItem->prev = pNew;
+
+ return_val = pNew->id;
+
+ break;
+ }
+ else if(pItem->next == NULL)
+ {
+ pNew->prev = pItem;
+ pItem->next = pNew;
+
+ return_val = pNew->id;
+
+ break;
+ }
+
+ pItem = pItem->next;
+ }
+
+ break;
+ }
+
+ pList = pList->next;
+ }
+
+ if(pList == NULL)
+ {
+ struct bm_cache_head *pNewList;
+
+ pNewList = (struct bm_cache_head *)malloc(sizeof(struct bm_cache_head));
+
+ pNewList->next = NULL;
+ pNewList->prev = NULL;
+ pNewList->width = gWidth;
+ pNewList->head = pNew;
+
+ if(bm_cache == NULL)
+ {
+ bm_cache = pNewList;
+ return_val = pNew->id;
+ }
+ else
+ {
+ pList = bm_cache;
+
+ while(pList != NULL)
+ {
+ if(pList->width > gWidth)
+ {
+ pNewList->next = pList;
+ pNewList->prev = pList->prev;
+
+ if(pList->prev != NULL)
+ pList->prev->next = pNewList;
+ else
+ bm_cache = pNewList;
+ pList->prev = pNewList;
+
+ return_val = pNew->id;
+
+ break;
+ }
+ else if(pList->next == NULL)
+ {
+ pNewList->prev = pList;
+ pList->next = pNewList;
+
+ return_val = pNew->id;
+
+ break;
+ }
+
+ pList = pList->next;
+ }
+ }
+ }
+
+ return return_val;
+}
+
+
+static void
+PsBmClearImageCacheItem(
+ struct bm_cache_list *pItem)
+{
+ if(pItem != NULL)
+ {
+ if(pItem->pBuffer != NULL)
+ free(pItem->pBuffer);
+ pItem->pBuffer = NULL;
+
+ if(pItem->next)
+ PsBmClearImageCacheItem(pItem->next);
+ pItem->next = NULL;
+
+ free(pItem);
+ pItem = NULL;
+ }
+}
+
+static void
+PsBmClearImageCacheList(
+ struct bm_cache_head *pList)
+{
+ if(pList != NULL)
+ {
+ if(pList->head)
+ PsBmClearImageCacheItem(pList->head);
+ pList->head = NULL;
+
+ if(pList->next)
+ PsBmClearImageCacheList(pList->next);
+ pList->next = NULL;
+
+ free(pList);
+ pList = NULL;
+ }
+}
+
+void
+PsBmClearImageCache()
+{
+ PsBmClearImageCacheList(bm_cache);
+
+ bm_cache = NULL;
+
+ PsBmUniqueId(RESET);
+}
+
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