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91 lines
2.9 KiB
C++
91 lines
2.9 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#ifndef CINE_PAL_H
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#define CINE_PAL_H
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namespace Cine {
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struct PalEntry {
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char name[10];
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byte pal1[16];
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byte pal2[16];
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};
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extern Common::Array<PalEntry> palArray;
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void loadPal(const char *fileName);
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void loadRelatedPalette(const char *fileName);
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void palRotate(uint16 *pal, byte a, byte b, byte c);
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void palRotate(byte *pal, byte a, byte b, byte c);
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uint16 transformColor(uint16 baseColor, int r, int g, int b);
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void transformPaletteRange(uint16 *srcPal, uint16 *dstPal, int startColor, int stopColor, int r, int g, int b);
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void transformPaletteRange(byte *srcPal, byte *dstPal, int startColor, int stopColor, int r, int g, int b);
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// This class might be used for handling Cine-engine's palettes in the future. WIP!
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// All colors are represented internally as 32-bit RGBA, but
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// 9-bit color palettes with 16 colors can be loaded and converted on-the-fly.
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// TODO: Add palette saving in the peculiar but used 9-bit color format.
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// TODO: Make use of this class.
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class Palette {
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public:
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Palette& load24BitColors(byte *colors, uint colorCount = 256);
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Palette& load9BitColors(uint16 *colors, uint colorCount = 16);
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Palette& rotateRight(byte firstIndex, byte lastIndex);
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Palette& saturatedAddColor(byte firstIndex, byte lastIndex, signed r, signed g, signed b);
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uint getColorCount() const;
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private:
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static const byte
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R_INDEX = 0,
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G_INDEX = 1,
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B_INDEX = 2,
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A_INDEX = 3;
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static const uint
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COMPONENTS_PER_COLOR = 4,
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BITS_PER_COMPONENT = 8,
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COMPONENT_MASK = ((1 << BITS_PER_COMPONENT) - 1),
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COMPONENT_MAX = COMPONENT_MASK,
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COMPONENT_MUL = COMPONENT_MAX / 7;
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typedef uint32 PackedColor;
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byte& getComponent(byte colorIndex, byte componentIndex);
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void setComponent(byte colorIndex, byte componentIndex, byte value);
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PackedColor getColor(byte colorIndex);
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void setColor(byte colorIndex, PackedColor color);
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void saturatedAddColor(byte index, signed r, signed g, signed b);
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void setColorCount(uint colorCount);
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Common::Array<byte> _colors;
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};
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} // End of namespace Cine
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#endif
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