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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 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