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 BAGEL_BOFLIB_GFX_PALETTE_H
#define BAGEL_BOFLIB_GFX_PALETTE_H

#include "graphics/screen.h"
#include "bagel/boflib/error.h"
#include "bagel/boflib/object.h"
#include "bagel/boflib/stdinc.h"

namespace Bagel {

#define PAL_DEFAULT 0x0000
#define PAL_ANIMATED 0x0001
#define PAL_EXPLICIT 0x0002

typedef uint32 RGBCOLOR;
struct HPALETTE {
    byte _data[PALETTE_SIZE];
    int16 _numColors;
    HPALETTE(int16 numColors = PALETTE_COUNT);
};

struct PALETTEENTRY {
    byte peRed;
    byte peGreen;
    byte peBlue;
    byte peFlags;
};
struct LOGPALETTE {
    int16 palNumEntries;
    int16 palVersion;
    PALETTEENTRY palPalEntry[1];
};

#define RGB(r, g, b) ((RGBCOLOR)(((byte)(r) | ((uint16)((byte)(g)) << 8)) | (((uint32)(byte)(b)) << 16)))

struct BOFRGBQUAD {
    byte rgbBlue;
    byte rgbGreen;
    byte rgbRed;
    byte rgbReserved;
};

#define GetRed(rgb) ((byte)((rgb) & 0x000000FF))
#define GetGreen(rgb) ((byte)(((rgb) >> 8) & 0x000000FF))
#define GetBlue(rgb) ((byte)(((rgb) >> 16) & 0x000000FF))

class CBofPalette : public CBofError, public CBofObject {
protected:
    HPALETTE _palette;

    static CBofPalette *_pSharedPalette;
    static char _szSharedPalFile[MAX_FNAME];

    void ReleasePalette();

public:
    CBofPalette();

    CBofPalette(const char *pszFileName);

    CBofPalette(const HPALETTE &hPalette);

    ErrorCode loadPalette(const char *pszFileName, uint16 nFlags = PAL_DEFAULT);

    ErrorCode createDefault(uint16 nFlags = PAL_DEFAULT);

    byte getNearestIndex(RGBCOLOR cColor);

    RGBCOLOR getColor(byte nIndex);

    void setPalette(const HPALETTE &hPalette);

    const HPALETTE &getPalette() const {
        return _palette;
    }

    const byte *getData() const {
        return _palette._data;
    }

    void setData(const byte* colors) {
        memcpy(_palette._data, colors, PALETTE_SIZE);
    }

    virtual ~CBofPalette();

    CBofPalette *copyPalette();

    static void initialize();

    static ErrorCode setSharedPalette(const char *pszFileName);

    static CBofPalette *getSharedPalette();
};

} // namespace Bagel

#endif