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Diffstat (limited to 'engines/sci/gfx/palette.h')
-rw-r--r-- | engines/sci/gfx/palette.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/engines/sci/gfx/palette.h b/engines/sci/gfx/palette.h new file mode 100644 index 0000000000..19b21fed89 --- /dev/null +++ b/engines/sci/gfx/palette.h @@ -0,0 +1,107 @@ +/* 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 SCI_GFX_PALETTE_H +#define SCI_GFX_PALETTE_H + +#include "common/scummsys.h" +#include "common/str.h" + +namespace Sci { + +const int PALENTRY_LOCKED = -42; +const int PALENTRY_FREE = -41; + +struct PaletteEntry { + PaletteEntry() + : r(0), g(0), b(0), parent_index(-1), refcount(PALENTRY_FREE) + { } + PaletteEntry(byte R, byte G, byte B) + : r(R), g(G), b(B), parent_index(-1), refcount(PALENTRY_FREE) + { } + + // Color data + byte r, g, b; + + // Index in parent palette, or -1 + int parent_index; + + // Number of references from child palettes. (This includes palettes + // of pixmaps.) + // Special values: PALENTRY_LOCKED, PALENTRY_FREE + int refcount; +}; + +struct gfx_pixmap_color_t; + +class Palette { +public: + explicit Palette(unsigned int size); + Palette(gfx_pixmap_color_t* colors, unsigned int size); + ~Palette(); + + Palette* getref(); + void free(); + Palette* copy(); + + void resize(unsigned int size); + void setColor(unsigned int index, byte r, byte g, byte b); + void makeSystemColor(unsigned int index, const PaletteEntry& color); + const PaletteEntry& getColor(unsigned int index) const { + assert(index < _size); + return _colors[index]; + } + const PaletteEntry& operator[](unsigned int index) const { + return getColor(index); + } + unsigned int size() const { return _size; } + bool isDirty() const { return _dirty; } + bool isShared() const { return _refcount > 1; } + Palette* getParent() { return _parent; } + + void markClean() { _dirty = false; } + + unsigned int findNearbyColor(byte r, byte g, byte b, bool lock=false); + + void mergeInto(Palette *parent); + void unmerge(); + + Common::String name; // strictly for debugging purposes +private: + PaletteEntry *_colors; + unsigned int _size; + + Palette *_parent; + + bool _dirty; // Palette has changed + int _refcount; // Number of pixmaps (or other objects) using this palette +}; + + + + +} // End of namespace Sci + +#endif // SCI_GFX_PALETTE_H |