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/* 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 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#ifndef CINE_PAL_H
#define CINE_PAL_H
namespace Cine {
struct PalEntry {
char name[10];
byte pal1[16];
byte pal2[16];
};
extern Common::Array<PalEntry> palArray;
void loadPal(const char *fileName);
void loadRelatedPalette(const char *fileName);
void palRotate(uint16 *pal, byte a, byte b, byte c);
void palRotate(byte *pal, byte a, byte b, byte c);
uint16 transformColor(uint16 baseColor, int r, int g, int b);
void transformPaletteRange(uint16 *srcPal, uint16 *dstPal, int startColor, int stopColor, int r, int g, int b);
void transformPaletteRange(byte *srcPal, byte *dstPal, int startColor, int stopColor, int r, int g, int b);
// This class might be used for handling Cine-engine's palettes in the future. WIP!
// All colors are represented internally as 32-bit RGBA, but
// 9-bit color palettes with 16 colors can be loaded and converted on-the-fly.
// TODO: Add palette saving in the peculiar but used 9-bit color format.
// TODO: Make use of this class.
class Palette {
public:
Palette& load24BitColors(byte *colors, uint colorCount = 256);
Palette& load9BitColors(uint16 *colors, uint colorCount = 16);
Palette& rotateRight(byte firstIndex, byte lastIndex);
Palette& saturatedAddColor(byte firstIndex, byte lastIndex, signed r, signed g, signed b);
uint getColorCount() const;
private:
static const byte
R_INDEX = 0,
G_INDEX = 1,
B_INDEX = 2,
A_INDEX = 3;
static const uint
COMPONENTS_PER_COLOR = 4,
BITS_PER_COMPONENT = 8,
COMPONENT_MASK = ((1 << BITS_PER_COMPONENT) - 1),
COMPONENT_MAX = COMPONENT_MASK,
COMPONENT_MUL = COMPONENT_MAX / 7;
typedef uint32 PackedColor;
byte& getComponent(byte colorIndex, byte componentIndex);
void setComponent(byte colorIndex, byte componentIndex, byte value);
PackedColor getColor(byte colorIndex);
void setColor(byte colorIndex, PackedColor color);
void saturatedAddColor(byte index, signed r, signed g, signed b);
void setColorCount(uint colorCount);
Common::Array<byte> _colors;
};
} // End of namespace Cine
#endif
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