Xprint/ -> hw/xprint
XpConfig -> hw/xprint/config
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328
hw/xprint/ps/PsCache.c
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328
hw/xprint/ps/PsCache.c
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/*
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Copyright 1996, 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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/*
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* (c) Copyright 1996 Hewlett-Packard Company
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* (c) Copyright 1996 International Business Machines Corp.
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* (c) Copyright 1996, 2000 Sun Microsystems, Inc. All Rights Reserved.
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* (c) Copyright 1996 Novell, Inc.
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* (c) Copyright 1996 Digital Equipment Corp.
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* (c) Copyright 1996 Fujitsu Limited
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* (c) Copyright 1996 Hitachi, Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject
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* to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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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
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* THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Except as contained in this notice, the names of the copyright holders
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* shall not be used in advertising or otherwise to promote the sale, use
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* or other dealings in this Software without prior written authorization
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* from said copyright holders.
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*/
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/*******************************************************************
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**
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** *********************************************************
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** *
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** * File: PsCache.c
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** *
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** * Contents: Character-caching routines
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** *
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** * Created By: Jay Hobson (Sun MicroSystems)
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** *
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** * Copyright: Copyright 1996 The Open Group, Inc.
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** *
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** *********************************************************
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**
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********************************************************************/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include "Ps.h"
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#include "gcstruct.h"
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#include "windowstr.h"
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#include <X11/fonts/fntfil.h>
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#include <X11/fonts/fntfilst.h>
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#define GET 0
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#define RESET 1
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struct bm_cache_list {
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struct bm_cache_list *next;
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struct bm_cache_list *prev;
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int height;
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long id;
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char *pBuffer;
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};
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struct bm_cache_head {
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struct bm_cache_list *head;
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int width;
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struct bm_cache_head *next;
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struct bm_cache_head *prev;
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};
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static struct bm_cache_head *bm_cache = NULL;
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static long
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PsBmUniqueId(int func)
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{
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static long unique_id = 0;
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if(func == RESET)
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{
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unique_id = 0;
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return 0;
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}
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else
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return ++unique_id;
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}
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int
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PsBmIsImageCached(
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int gWidth,
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int gHeight,
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char *pBuffer)
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{
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int return_val = 0;
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struct bm_cache_head *pList = bm_cache;
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while(pList != NULL && !return_val)
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{
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if(pList->width == gWidth)
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{
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struct bm_cache_list *pItem = pList->head;
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while(pItem != NULL)
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{
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if(pItem->height == gHeight)
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{
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int length = 4*(gWidth/32+(gWidth%32!=0))*gHeight;
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if(!memcmp(pItem->pBuffer, pBuffer, sizeof(char)*length))
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{
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return_val = pItem->id;
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break;
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}
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}
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else if(pItem->height > gHeight)
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break;
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pItem = pItem->next;
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}
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}
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else if(pList->width > gWidth)
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break;
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pList = pList->next;
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}
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return return_val;
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}
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int
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PsBmPutImageInCache(
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int gWidth,
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int gHeight,
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char *pBuffer)
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{
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int return_val = 0;
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struct bm_cache_head *pList = bm_cache;
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struct bm_cache_list *pNew;
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int length = 4*(gWidth/32+(gWidth%32!=0))*gHeight;
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if(gWidth == 1 && gHeight == 1 && pBuffer[0] == 0)
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return return_val;
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pNew = (struct bm_cache_list *)malloc(sizeof(struct bm_cache_list));
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pNew->next = NULL;
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pNew->prev = NULL;
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pNew->height = gHeight;
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pNew->id = PsBmUniqueId(GET);
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pNew->pBuffer = (char *)malloc(sizeof(char)*length);
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memcpy(pNew->pBuffer, pBuffer, length);
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while(pList != NULL)
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{
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if(pList->width == gWidth)
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{
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struct bm_cache_list *pItem = pList->head;
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while(pItem != NULL)
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{
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if(pItem->height >= gHeight)
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{
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pNew->next = pItem;
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pNew->prev = pItem->prev;
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if(pItem->prev != NULL)
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pItem->prev->next = pNew;
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else
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pList->head = pNew;
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pItem->prev = pNew;
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return_val = pNew->id;
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break;
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}
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else if(pItem->next == NULL)
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{
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pNew->prev = pItem;
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pItem->next = pNew;
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return_val = pNew->id;
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break;
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}
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pItem = pItem->next;
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}
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break;
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}
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pList = pList->next;
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}
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if(pList == NULL)
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{
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struct bm_cache_head *pNewList;
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pNewList = (struct bm_cache_head *)malloc(sizeof(struct bm_cache_head));
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pNewList->next = NULL;
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pNewList->prev = NULL;
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pNewList->width = gWidth;
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pNewList->head = pNew;
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if(bm_cache == NULL)
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{
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bm_cache = pNewList;
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return_val = pNew->id;
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}
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else
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{
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pList = bm_cache;
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while(pList != NULL)
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{
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if(pList->width > gWidth)
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{
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pNewList->next = pList;
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pNewList->prev = pList->prev;
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if(pList->prev != NULL)
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pList->prev->next = pNewList;
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else
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bm_cache = pNewList;
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pList->prev = pNewList;
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return_val = pNew->id;
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break;
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}
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else if(pList->next == NULL)
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{
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pNewList->prev = pList;
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pList->next = pNewList;
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return_val = pNew->id;
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break;
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}
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pList = pList->next;
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}
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}
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}
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return return_val;
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}
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static void
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PsBmClearImageCacheItem(
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struct bm_cache_list *pItem)
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{
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if(pItem != NULL)
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{
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if(pItem->pBuffer != NULL)
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free(pItem->pBuffer);
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pItem->pBuffer = NULL;
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if(pItem->next)
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PsBmClearImageCacheItem(pItem->next);
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pItem->next = NULL;
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free(pItem);
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pItem = NULL;
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}
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}
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static void
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PsBmClearImageCacheList(
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struct bm_cache_head *pList)
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{
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if(pList != NULL)
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{
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if(pList->head)
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PsBmClearImageCacheItem(pList->head);
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pList->head = NULL;
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if(pList->next)
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PsBmClearImageCacheList(pList->next);
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pList->next = NULL;
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free(pList);
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pList = NULL;
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}
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}
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void
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PsBmClearImageCache(void)
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{
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PsBmClearImageCacheList(bm_cache);
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bm_cache = NULL;
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PsBmUniqueId(RESET);
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}
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