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engines/saga2/vpal.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/>.
+ *
+ *
+ * Based on the original sources
+ *   Faery Tale II -- The Halls of the Dead
+ *   (c) 1993-1996 The Wyrmkeep Entertainment Co.
+ */
+
+#ifndef SAGA2_VPAL_H
+#define SAGA2_VPAL_H
+
+#include "saga2/idtypes.h"
+
+namespace Saga2 {
+
+//  Stores an RGB value
+
+struct gPaletteEntry {
+	uint8           r,
+	                g,
+	                b;
+};
+
+//  An entire palette of 256 colors
+
+struct gPalette {
+	gPaletteEntry   entry[256];
+
+	void read(Common::InSaveFile *in);
+	void write(Common::MemoryWriteStreamDynamic *out);
+};
+
+typedef gPalette *gPalettePtr;
+
+/* ===================================================================== *
+                             Prototypes
+ * ===================================================================== */
+
+void LoadPalette(gPalette &palette);
+int32 ColorDistance(gPaletteEntry &c1, gPaletteEntry &c2);
+void CalcPens(gPalette &, gPaletteEntry *, gPen *, int16, bool);
+
+class PaletteManager {
+private:
+	gPalette _currentPalette;
+
+	gPalette _oldPalette,
+             _destPalette,
+             _quickPalette;
+
+	int32 _startTime,
+		  _totalTime;
+
+
+public:
+	gPalette _newPalette;
+	gPalettePtr _midnightPalette,
+			    _noonPalette,
+			    _darkPalette;
+
+	uint32 _prevLightLevel;
+
+	PaletteManager();
+	//~PaletteManager() {}
+
+	void assertCurrentPalette();
+	void loadPalettes();
+	void cleanupPalettes();
+	void beginFade(gPalettePtr newPalette, int32 fadeDuration);
+	bool updatePalette();
+	void createPalette(gPalettePtr newP, gPalettePtr srcP, gPalettePtr dstP,
+	                   int32 elapsedTime, int32 totalTime_);
+	void setCurrentPalette(gPalettePtr newPal);
+	void getCurrentPalette(gPalettePtr pal);
+	void initPaletteState();
+	void lightsOut();
+	void quickSavePalette();
+	void quickRestorePalette();
+	void savePaletteState(Common::OutSaveFile *outS);
+	void loadPaletteState(Common::InSaveFile *in);
+};
+
+} // end of namespace Saga2
+
+#endif