ICU-64260.0.1.tar.gz

[apple/icu.git] / icuSources / test / letest / FontTableCache.h

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
 **********************************************************************
 *   Copyright (C) 2003-2013, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 **********************************************************************
 */

#ifndef __FONTTABLECACHE_H

#define __FONTTABLECACHE_H

#include "layout/LETypes.h"

U_NAMESPACE_USE

struct FontTableCacheEntry;

class FontTableCache
{
public:
    FontTableCache();

    virtual ~FontTableCache();

    const void *find(LETag tableTag, size_t &length) const;

protected:
    virtual const void *readFontTable(LETag tableTag, size_t &length) const = 0;
    virtual void freeFontTable(const void *table) const;

private:

    void add(LETag tableTag, const void *table, size_t length);

    FontTableCacheEntry *fTableCache;
    le_int32 fTableCacheCurr;
    le_int32 fTableCacheSize;
};

#endif