--- a/sources/huffman/bitwriter.h Fri May 15 20:10:44 2015 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,109 +0,0 @@
-/*
- * skulltag::BitWriter class - Enables writing arbitrary bit lengths of data.
- *
- * 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_WRITER_VERSION
-#define _BIT_WRITER_VERSION 1
-
-/** Prevents naming convention problems via encapsulation. */
-namespace skulltag { // scope limitation
-
-/** BitWriter - Allows writing of varying amounts of bits to a char buffer. <br>
- * Very usefull for outputting variable bit length encodings such as Huffman. */
-
- class BitWriter {
- int bufferBits; /**< intermediary buffer of bits. */
- int bitsLeft; /**< number of bits left in the buffer. */
- unsigned char * currentByte; /**< position in memory the next char will be stored. */
- int bytesAvailable; /**< amount of available space left in the output buffer in bytes. Excludes the contents of bufferBits. */
- int bitsAvailable; /**< amount of available space left in the output buffer in bits. Includes the contents of bufferBits. */
- int maximumBytes; /**< total amount of bytes that can be written to the output 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. */
-public:
-
- /** Creates a new BitWriter. */
- BitWriter();
-
- /** Creates a new BitWriter.
- * @param output Destination that bits will be written to.
- * @param max Maximum number of chars to output. */
- BitWriter( unsigned char * const output, int const &max );
-
- /** Appends a char worth of bits to the buffer.
- * @param bits the bits to append.
- * @return true if successful, false if an error occurs. */
- bool put( unsigned char const &bits );
-
- /** Appends a short worth of bits to the buffer.
- * @param bits the bits to append.
- * @return true if successful, false otherwise.
- * @return true if successful, false if an error occurs. */
- bool put( short const &bits );
-
- /** Appends an int worth of bits to the buffer.
- * @param bits the bits to append.
- * @return true if successful, false if an error occurs. */
- bool put( int const &bits );
-
- /** Appends a specified number of bits from an int to the buffer.
- * @param bits the bits to append. <br>
- * The bits should be stored in the least significant portion of the int.
- * @param count the number of bits to append.
- * @return true if successful, false if an error occurs. */
- bool put( int const &bits, int count );
-
- /** Appends multiple chars from a buffer to this BitWriter.
- * @param inputBuffer pointer to char data
- * @param count number of chars to read
- * @return true if successful, false if an error occurs. */
- bool put( unsigned char const * const inputBuffer, int count );
-
- /** Sets the output buffer that bytes will be written to.
- * @param output Destination that bits will be written to.
- * @param max Maximum number of chars to output.
- * @return true if successful, false if an error occurs. */
- bool outputBuffer( unsigned char * const output, int const &max );
-
- /** Writes any full chars of data stored in this BitWriter to the output char buffer.
- * @return true if successful, false if an error occurs. */
- bool flush();
-
- /** Flushes this BitWriter then outputs any partial chars by padding them with zeros. <br>
- * After calling finish() all other calls to update the BitWriter will fail until a buffer is set via outputBuffer().
- * @param bytesWritten out: the number of bytes written to the output buffer.
- * @param paddingBits out: the number of padding bits used in the final byte of output.
- * @return true if successful, false if an error occurs. */
- bool finish( int &bytesWritten, int &paddingBits );
-
- private:
-
- /** Initializes this BitWriter. */
- void init();
-
- };
-
-}
-#endif
-