- added NBlood source.

source/libsmackerdec/src/HuffmanVLC.cpp

@@ -0,0 +1,71 @@
+/*
+ * libsmackerdec - Smacker video decoder
+ * Copyright (C) 2011 Barry Duncan
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <HuffmanVLC.h>
+
+namespace SmackerCommon {
+
+uint16_t VLC_GetCodeBits(BitReader &bits, VLCtable &table)
+{
+	uint32_t codeBits = 0;
+
+	// search each length array
+	for (uint32_t i = 0; i < table.size(); i++)
+	{
+		// get and add a new bit to codeBits
+		uint32_t theBit = bits.GetBit() << i;
+		codeBits |= theBit;
+
+		// search for a code match
+		for (uint32_t j = 0; j < table[i].size(); j++)
+		{
+			if (codeBits == table[i][j].code)
+			{
+				return table[i][j].symbol;
+			}
+		}
+	}
+
+	// shouldn't get here..
+	return 0;
+}
+
+void VLC_InitTable(VLCtable &table, uint32_t maxLength, uint32_t size, int *lengths, uint32_t *bits)
+{
+	table.resize(maxLength);
+
+	for (uint32_t i = 0; i < size; i++)
+	{
+		VLC newCode;
+		newCode.symbol = i;
+		newCode.code   = bits[i];
+
+		uint32_t codeLength = lengths[i];
+
+		if (codeLength)
+			table[codeLength - 1].push_back(newCode);
+	}
+}
+
+uint32_t VLC_GetSize(VLCtable &table)
+{
+	return table.size();
+}
+
+} // close namespace SmackerCommon