Mercurial > zfc9000 / file diff

--- a/sources/huffman/bitreader.h	Fri May 15 20:10:44 2015 +0300
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,85 +0,0 @@
-/**
- * skulltag::BitReader class - Allows reading arbitrary bit lengths of data.
- * Version 1 - Revsion 0
- *
- * Copyright 2009 Timothy Landers
- * email: code.vortexcortex@gmail.com
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#ifndef _BIT_READER_VERSION
-#define _BIT_READER_VERSION 1
-
-/** Prevents naming convention problems via encapsulation. */
-namespace skulltag { // scope limitation
-
-/** BitReader - Allows reading of varying amounts of bits from a char buffer. <br>
- * Very usefull for inputting variable bit length encodings such as Huffman. */
-
-	class BitReader {
-		int bufferBits;					/**< intermediary buffer of bits. */
-		int bitsUsed;					/**< number of bits used in the buffer. */
-		unsigned char const * currentByte;	/**< position in memory the next char will be read. */
-		int bytesAvailable;				/**< amount of available space left in the input buffer in bytes. Excludes the contents of bufferBits. */
-		int bitsAvailable;				/**< amount of available space left in the input buffer in bits. Includes the contents of bufferBits. */
-		int maximumBytes;				/**< total amount of bytes that can be read from the input buffer. */
-		static int mask[];				/**< maps a number of bits to a bit mask containing as many bits. */
-		static int intSize;				/**< number of chars in an int. */
-		static int intBitSize;			/**< number of bits in an ing. */
-public:
-
-		/** Creates a new BitReader. */
-		BitReader();
-
-		/** Creates a new BitReader.
-		 * @param input		Source of data that bits will be read from.
-		 * @param max		Maximum number of chars to read. */
-		BitReader( unsigned char const * input, int const &max );
-
-		/** Sets the input buffer that bytes will be read from.
-		 * @param input		Source of data that bits will be read from.
-		 * @param max		Maximum number of chars to input.
-		 * @return true if successful, false if an error occurs. */
-		bool inputBuffer( unsigned char const * input, int const &max );
-		
-		/** Fetches a specified number of bits and stores them in an int.
-		 * @param bits 		destination of the retrieved bits. <br>
-		 *		The bits will be stored in the least significant portion of the int.
-		 * @param count		the number of bits to fetch.
-		 * @return the number of bits read -- may not be equal to the amount requested. */
-		int get( int &bits, int const &count );
-
-		/** @return Amount of bits that can be read from this BitReader. */
-		int availableBits();
-
-	private:
-
-		/** Fills the internal bit buffer.
-		 * @return true if successful, false if an error occurs. */
-		bool fill();
-
-		/** Initializes this BitReader. */
-		void init();
-
-	};
-
-}
-#endif
-