X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=mware%2Frle.c;h=3231833b74b3ff8e7a82cbf4fa06721060f45def;hb=HEAD;hp=4655ab6642f089cd8daab2a6635a357e008eba3d;hpb=3e64690f20260eb01ea440d745c177930fba6568;p=bertos.git

diff --git a/mware/rle.c b/mware/rle.c
deleted file mode 100755
index 4655ab66..00000000
--- a/mware/rle.c
+++ /dev/null
@@ -1,133 +0,0 @@
-/*!
- * \file
- * <!--
- * Copyright 2004 Develer S.r.l. (http://www.develer.com/)
- * Copyright 1999, 2000, 2001 Bernardo Innocenti <bernie@develer.com>
- * This file is part of DevLib - See devlib/README for information.
- * -->
- *
- * \brief General-purpose run-length {en,de}coding algorithm (implementation)
- *
- * Original source code from http://www.compuphase.com/compress.htm
- *
- * \version $Id$
- * \author Bernardo Innocenti <bernie@develer.com>
- */
-
-/*
- * $Log$
- * Revision 1.1  2004/08/04 02:35:54  bernie
- * Import simple RLE algorithm.
- *
- */
-
-#include "rle.h"
-
-
-/*!
- * Run-length encode \a len bytes from the \a input buffer
- * to the \a output buffer.
- */
-int rle(unsigned char *output, const unsigned char *input, int len)
-{
-	int count, index, i;
-	unsigned char first;
-	unsigned char *out;
-
-
-	out = output;
-	count = 0;
-	while (count < len)
-	{
-		index = count;
-		first = input[index++];
-
-		/* Scan for bytes identical to the first one */
-		while ((index < len) && (index - count < 127) && (input[index] == first))
-			index++;
-
-		if (index - count == 1)
-		{
-			/* Failed to "replicate" the current byte. See how many to copy.
-			 */
-			while ((index < len) && (index - count < 127))
-			{
-				/* Avoid a replicate run of only 2-bytes after a literal run.
-				 * There is no gain in this, and there is a risc of loss if the
-				 * run after the two identical bytes is another literal run.
-				 * So search for 3 identical bytes.
-				 */
-				if ((input[index] == input[index - 1]) &&
-					((index > 1) && (input[index] == input[index - 2])))
-				{
-					/* Reset the index so we can back up these three identical
-					 * bytes in the next run.
-					 */
-					index -= 2;
-					break;
-				}
-
-				index++;
-			}
-
-			/* Output a run of uncompressed bytes: write length and values */
-			*out++ = (unsigned char)(count - index);
-			for (i = count; i < index; i++)
-				*out++ = input[i];
-	    }
-		else
-		{
-			/* Output a compressed run: write length and value */
-			*out++ = (unsigned char)(index - count);
-			*out++ = first;
-	    }
-
-		count = index;
-	}
-
-	/* Output EOF marker */
-	*out++ = 0;
-
-	return (out - output);
-}
-
-
-/*!
- * Run-length decode from the \a input buffer to the \a output
- * buffer.
- *
- * \note The output buffer must be large enough to accomodate
- *       all decoded output.
- */
-int unrle(unsigned char *output, const unsigned char *input)
-{
-	signed char count;
-	unsigned char *out;
-	unsigned char value;
-
-
-	out = output;
-
-	for (;;)
-	{
-		count = (signed char)*input++;
-		if (count > 0)
-		{
-			/* replicate run */
-			value = *input++;
-			while (count--)
-				*out++ = value;
-		}
-		else if (count < 0)
-		{
-			/* literal run */
-			while (count++)
-				*out++ = *input++;
-		}
-		else
-			/* EOF */
-			break;
-	}
-
-	return (out - output);
-}