filecache.h

au1200 linux2.6.11 硬件解码mae驱动和maiplayer播放器源码

/* <LIC_AMD_STD>
 * Copyright (c) 2005 Advanced Micro Devices, Inc.
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 * 
 * The full GNU General Public License is included in this distribution in the
 * file called COPYING
 * </LIC_AMD_STD>  */
/* <CTL_AMD_STD>
 * </CTL_AMD_STD>  */
/* <DOC_AMD_STD>
 * </DOC_AMD_STD>  */
#ifndef _FILECACHE_H_
#define _FILECACHE_H_
#include <stdio.h>

#ifndef CFUNC
#  define CFUNC
#endif

#if defined(OS_Linux_HACK)
#  include <zlib.h>
#  define fopen gzopen
#  define fclose gzclose
#  define fprintf gzprintf
typedef gzFile CachedFILE;
#else
typedef FILE *CachedFILE;
#endif

extern CFUNC void CriticalSectionInit();
extern CFUNC void CriticalSectionExit();

// A File Cache interface. The cache keeps a bunch of files open by
// name. It does not close the files until it needs to reuse the cache entry.
// This works really well for the MAE instrumentation that writes output for
// each macro block to a handful of different files. Without the cache, it
// closes (causing flush) each file for each macro block. With the cache, the
// system overhead goes way down.
extern CFUNC CachedFILE FileCacheGet(const char*);
extern CFUNC void FileCacheDone(CachedFILE);
#endif