palette.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef LURE_PALETTE_H
#define LURE_PALETTE_H

#include "lure/luredefs.h"
#include "lure/disk.h"
#include "lure/memory.h"

namespace Lure {

enum PaletteSource {DEFAULT, RGB, RGB64, EGA};

class Palette {
private:
    MemoryBlock *_palette;
    uint16 _numEntries;

    void convertRgb64Palette(const byte *srcPalette, uint16 srcNumEntries);
    void convertEGAPalette(const byte *srcPalette);
public:
    Palette();
    Palette(uint16 srcNumEntries, const byte *srcData, PaletteSource paletteSource);
    Palette(Palette &src);
    Palette(uint16 resourceId, PaletteSource paletteSource = DEFAULT);
    ~Palette();

    uint8 *data() { return _palette->data(); }
    MemoryBlock *palette() { return _palette; }
    uint16 numEntries() { return _palette->size() / 4; }
    void setEntry(uint8 index, uint32 value);
    uint32 getEntry(uint8 index);
    void copyFrom(Palette *src);
};

class PaletteCollection {
private:
    Palette **_palettes;
    uint8 _numPalettes;
public:
    PaletteCollection(uint16 resourceId);
    ~PaletteCollection();

    uint8 numPalettes() { return _numPalettes; }
    Palette &getPalette(uint8 paletteNum);
};

} // end of namspace Lure

#endif