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engines/ultima/ultima8/gfx/palette_manager.h

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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 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 ULTIMA8_GFX_PALETTEMANAGER_H
+#define ULTIMA8_GFX_PALETTEMANAGER_H
+
+#include "ultima/shared/std/containers.h"
+#include "graphics/pixelformat.h"
+#include "ultima/ultima8/gfx/pal_transforms.h"
+
+namespace Ultima {
+namespace Ultima8 {
+
+class Palette;
+
+class PaletteManager {
+public:
+	explicit PaletteManager(const Graphics::PixelFormat &format);
+	~PaletteManager();
+
+	static PaletteManager *get_instance() {
+		return _paletteManager;
+	}
+
+	enum PalIndex {
+		Pal_Game = 0,
+		Pal_Movie = 1,
+		Pal_Diff = 2,	// Crusaders only - difficulty screen??
+		Pal_Misc = 3,	// Crusaders only - game menu
+		Pal_Misc2 = 4,	// Crusaders only - ??
+		Pal_Star = 5,	// Crusaders only - ??
+		Pal_Cred = 6,	// Crusader: No regret only (but mentioned in the no remorse exe!)
+		Pal_JPFontStart = 16
+	};
+
+	void load(PalIndex index, Common::ReadStream &rs, Common::ReadStream &xformrs);
+	void load(PalIndex index, Common::ReadStream &rs);
+	Palette *getPalette(PalIndex index);
+	uint getNumPalettes() const { return _palettes.size(); }
+
+	void duplicate(PalIndex src, PalIndex dest);
+
+	//! Re-convert a palette to native format after modifying it. If maxindex is set,
+	//! only recalculate color indexes up to that value.
+	void updatedPalette(PalIndex index, int maxindex = 0);
+
+	//! Apply a transform matrix to a palette (-4.11 fixed)
+	void transformPalette(PalIndex index, const int16 matrix[12]);
+
+	//! reset the transformation matrix of a palette
+	void untransformPalette(PalIndex index);
+
+	//! Get the current TransformMatrix for the given index
+	bool getTransformMatrix(int16 matrix[12], PalIndex index);
+
+	// Get a TransformMatrix from a PalTransforms value (-4.11 fixed)
+	static void getTransformMatrix(int16 matrix[12],
+	                               PalTransforms trans);
+
+	// Create a custom Transform Matrix from RGBA col32. (-4.11 fixed)
+	// Alpha will set how much of original palette to keep. 0 = keep none
+	static void getTransformMatrix(int16 matrix[12], uint32 col32);
+
+	//! Change the pixel format used by the PaletteManager
+	void PixelFormatChanged(const Graphics::PixelFormat &format);
+
+	//! Reset the Palette Manager
+	void reset();
+
+	//! Reset all the transforms back to default
+	void resetTransforms();
+	bool loadTransforms(Common::ReadStream &rs);
+	void saveTransforms(Common::WriteStream &ws);
+
+private:
+	Std::vector<Palette *> _palettes;
+	Graphics::PixelFormat _format;
+
+	static PaletteManager *_paletteManager;
+};
+
+} // End of namespace Ultima8
+} // End of namespace Ultima
+
+#endif