1 files changed, 80 insertions, 0 deletions
diff --git a/kyra/palette.cpp b/kyra/palette.cpp
new file mode 100644
index 0000000000..a9836c8ef9
--- /dev/null
+++ b/kyra/palette.cpp
@@ -0,0 +1,80 @@
+/* ScummVM - Kyrandia Interpreter
+ * Copyright (C) 2003-2004 The ScummVM project
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * $Header$
+ *
+ */
+
+#include "stdafx.h"
+#include "resource.h"
+	
+#include "common/stream.h"
+#include "codecs.h"
+
+namespace Kyra {
+
+	Palette::Palette(uint8* data, uint32 size) {
+		if (!data) {
+			error("resource created without data");
+		}
+		
+		if (size != 768) {
+			Common::MemoryReadStream datastream(data, size);
+			
+			datastream.readSint32LE();
+			int imageSize = datastream.readSint16LE();
+			
+			if (imageSize != 768) {
+				error("decompresed palette is not 768 byte long!");
+			}
+			
+			// lets uncompress this palette :)
+			_palette = new uint8[imageSize];
+			assert(_palette);
+			
+			// made decompression
+			if (Compression::decode80(data + 10, _palette) != 768) {
+				error("decode80 decompressesize != 768 bytes");
+			}
+			
+			delete [] data;
+			data = _palette;			
+		}
+		
+		// hmm.. common/system.h Docu is wrong or SDL Backend has a bug :)
+		// a palette should have this order:
+		// R1-G1-B1-A1-R2-G2-B2-A2-...
+		// so we need 4 bytes per color
+		_palette = new uint8[256 * 4];
+		
+		uint8* currentpossrc = &data[0];
+		uint8* currentposdst = &_palette[0];
+		
+		// creates the original pallette (only first 6 bits are used)
+		for (uint32 i = 0; i < 256; i++) {
+			currentposdst[0] = currentpossrc[0] << 2;
+			currentposdst[1] = currentpossrc[1] << 2;
+			currentposdst[2] = currentpossrc[2] << 2;
+			currentpossrc += 3;
+			currentposdst += 4;
+    	}
+    	
+   		delete [] data;
+	}
+
+} // end of namespace Kyra
+