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/*
* Copyright (C) 2002 RealVNC Ltd. All Rights Reserved.
* Copyright (C) 2003 Sun Microsystems, Inc.
*
* This 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 software 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 software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
/*
* The PaletteHelper class helps us build up the palette from pixel data by
* storing a reverse index using a simple hash-table
*/
#ifndef __ZRLE_PALETTE_HELPER_H__
#define __ZRLE_PALETTE_HELPER_H__
#include "zrletypes.h"
#define ZRLE_PALETTE_MAX_SIZE 127
typedef struct {
zrle_U32 palette[ZRLE_PALETTE_MAX_SIZE];
zrle_U8 index[ZRLE_PALETTE_MAX_SIZE + 4096];
zrle_U32 key[ZRLE_PALETTE_MAX_SIZE + 4096];
int size;
} zrlePaletteHelper;
void zrlePaletteHelperInit (zrlePaletteHelper *helper);
void zrlePaletteHelperInsert(zrlePaletteHelper *helper,
zrle_U32 pix);
int zrlePaletteHelperLookup(zrlePaletteHelper *helper,
zrle_U32 pix);
#endif /* __ZRLE_PALETTE_HELPER_H__ */
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