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//Copyright Paul Reiche, Fred Ford. 1992-2002
/*
* 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.
*/
#ifndef CMAP_H
#define CMAP_H
#include "libs/gfxlib.h"
#define MAX_COLORMAPS 250
// These are pertinent to colortable file format
// We load colormaps as binary and parse them when needed
#define PLUTVAL_BYTE_SIZE 3
// Channel order in colormap tables
#define PLUTVAL_RED 0
#define PLUTVAL_GREEN 1
#define PLUTVAL_BLUE 2
#define NUMBER_OF_PLUTVALS 256
// Size of the colormap in a colortable file
#define PLUT_BYTE_SIZE (PLUTVAL_BYTE_SIZE * NUMBER_OF_PLUTVALS)
#define FADE_NO_INTENSITY 0
#define FADE_NORMAL_INTENSITY 255
#define FADE_FULL_INTENSITY 510
typedef struct NativePalette NativePalette;
typedef struct tfb_colormap
{
int index;
// Colormap index as the game sees it
int version;
// Version goes up every time the colormap changes. This may
// be due to SetColorMap() or at every transformation step
// of XFormColorMap(). Paletted TFB_Images track the last
// colormap version they were drawn with for optimization.
int refcount;
struct tfb_colormap *next;
// for spares linking
NativePalette *palette;
} TFB_ColorMap;
extern int GetFadeAmount (void);
extern void InitColorMaps (void);
extern void UninitColorMaps (void);
extern void GetColorMapColors (Color *colors, TFB_ColorMap *);
extern TFB_ColorMap * TFB_GetColorMap (int index);
extern void TFB_ReturnColorMap (TFB_ColorMap *map);
extern BOOLEAN XFormColorMap_step (void);
// Native
NativePalette* AllocNativePalette (void);
void FreeNativePalette (NativePalette *);
void SetNativePaletteColor (NativePalette *, int index, Color);
Color GetNativePaletteColor (NativePalette *, int index);
#endif /* CMAP_H */
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