Create Subversion repository

git-svn-id: http://svn.code.sf.net/p/netpbm/code/trunk@1 9d0c8265-081b-0410-96cb-a4ca84ce46f8

1 files changed, 58 insertions, 0 deletions

diff --git a/converter/other/fiasco/lib/bit-io.h b/converter/other/fiasco/lib/bit-io.h
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+++ b/converter/other/fiasco/lib/bit-io.h
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+/*
+ *  bit-io.h
+ *
+ *  Written by:		Ullrich Hafner
+ *
+ *  This file is part of FIASCO («F»ractal «I»mage «A»nd «S»equence «CO»dec)
+ *  Copyright (C) 1994-2000 Ullrich Hafner <hafner@bigfoot.de>
+ */
+
+/*
+ *  $Date: 2000/06/14 20:49:37 $
+ *  $Author: hafner $
+ *  $Revision: 5.1 $
+ *  $State: Exp $
+ */
+
+#ifndef _BIT_IO_H
+#define _BIT_IO_H
+
+#include <stdio.h>
+#include "types.h"
+
+#define OUTPUT_BYTE_ALIGN(bfile) while ((bfile)->bitpos) put_bit (bfile, 0);
+#define INPUT_BYTE_ALIGN(bfile)  while ((bfile)->bitpos) get_bit (bfile);
+
+typedef enum {READ_ACCESS, WRITE_ACCESS} openmode_e;
+
+typedef struct bitfile
+{
+   FILE	      *file;			/* associated filepointer */
+   char	      *filename;		/* corresponding filename */
+   byte_t     *buffer;			/* stream buffer */
+   byte_t     *ptr;			/* pointer to current buffer pos */
+   unsigned    bytepos;			/* current I/O byte */
+   unsigned    bitpos;			/* current I/O bit */
+   unsigned    bits_processed;		/* number of bits already processed */
+   openmode_e  mode;			/* access mode */
+} bitfile_t;
+
+FILE *
+open_file (const char *filename, const char *env_var, openmode_e mode);
+bitfile_t *
+open_bitfile (const char *filename, const char *env_var, openmode_e mode);
+void
+put_bit (bitfile_t *bitfile, unsigned value);
+void
+put_bits (bitfile_t *bitfile, unsigned value, unsigned bits);
+bool_t
+get_bit (bitfile_t *bitfile);
+unsigned 
+get_bits (bitfile_t *bitfile, unsigned bits);
+void
+close_bitfile (bitfile_t *bitfile);
+unsigned
+bits_processed (const bitfile_t *bitfile);
+
+#endif /* not _BIT_IO_H */
+