MADS: Initial implementation of MSurface class and dependant classes

1 files changed, 110 insertions, 0 deletions

diff --git a/engines/mads/palette.h b/engines/mads/palette.h
new file mode 100644
index 0000000000..ab03d8d20b
--- /dev/null
+++ b/engines/mads/palette.h
@@ -0,0 +1,110 @@
+/* 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.
+ *
+ */
+
+#ifndef MADS_PALETTE_H
+#define MADS_PALETTE_H
+
+#include "common/scummsys.h"
+
+namespace MADS {
+
+class MADSEngine;
+
+struct RGB8 {
+	uint8 r, g, b, u;
+};
+
+class RGBList {
+private:
+	int _size;
+	RGB8 *_data;
+	byte *_palIndexes;
+	bool _freeData;
+public:
+	RGBList(int numEntries = 256, RGB8 *srcData = NULL, bool freeData = true);
+	~RGBList();
+
+	RGB8 *data() { return _data; }
+	byte *palIndexes() { return _palIndexes; }
+	int size() { return _size; }
+};
+
+#define PALETTE_COUNT 256
+
+class Palette {
+private:
+	MADSEngine *_vm;
+	bool _colorsChanged;
+	bool _fading_in_progress;
+	byte _originalPalette[PALETTE_COUNT * 4];
+	byte _fadedPalette[PALETTE_COUNT * 4];
+	int _usageCount[PALETTE_COUNT];
+
+	void reset();
+public:
+	Palette(MADSEngine *vm);
+
+	void setPalette(const byte *colors, uint start, uint num);
+	void setPalette(const RGB8 *colors, uint start, uint num);
+	void grabPalette(byte *colors, uint start, uint num);
+	void grabPalette(RGB8 *colors, uint start, uint num) {
+		grabPalette((byte *)colors, start, num);
+	}
+	uint8 palIndexFromRgb(byte r, byte g, byte b, RGB8 *paletteData = NULL);
+
+	void fadeIn(int numSteps, uint delayAmount, RGB8 *destPalette, int numColors);
+	void fadeIn(int numSteps, uint delayAmount, RGBList *destPalette);
+	static RGB8 *decodeMadsPalette(Common::SeekableReadStream *palStream,  int *numColors);
+	int setMadsPalette(Common::SeekableReadStream *palStream, int indexStart = 0);
+	void setMadsSystemPalette();
+	void fadeRange(RGB8 *srcPal, RGB8 *destPal,  int startIndex, int endIndex, 
+		int numSteps, uint delayAmount);
+
+	// Methods used for reference counting color usage
+	void resetColorCounts();
+	void blockRange(int startIndex, int size);
+	void addRange(RGBList *list);
+	void deleteRange(RGBList *list);
+	void deleteAllRanges();
+
+	// Color indexes
+	uint8 BLACK;
+	uint8 BLUE;
+	uint8 GREEN;
+	uint8 CYAN;
+	uint8 RED;
+	uint8 VIOLET;
+	uint8 BROWN;
+	uint8 LIGHT_GRAY;
+	uint8 DARK_GRAY;
+	uint8 LIGHT_BLUE;
+	uint8 LIGHT_GREEN;
+	uint8 LIGHT_CYAN;
+	uint8 LIGHT_RED;
+	uint8 PINK;
+	uint8 YELLOW;
+	uint8 WHITE;
+};
+
+} // End of namespace MADS
+
+#endif /* MADS_PALETTE_H */