From a2566b3ebd93e0bbc55a920a7be08054a9377f11 Mon Sep 17 00:00:00 2001
From: Magnus Auvinen <magnus.auvinen@gmail.com>
Date: Sat, 15 Dec 2007 10:24:49 +0000
Subject: cleaned up code structure a bit

---
 src/engine/compression.c | 147 -----------------------------------------------
 1 file changed, 147 deletions(-)
 delete mode 100644 src/engine/compression.c

(limited to 'src/engine/compression.c')

diff --git a/src/engine/compression.c b/src/engine/compression.c
deleted file mode 100644
index d99624c0..00000000
--- a/src/engine/compression.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/* copyright (c) 2007 magnus auvinen, see licence.txt for more info */
-#include "system.h"
-#include <string.h>
-
-/* Format: ESDDDDDD EDDDDDDD EDD...  Extended, Data, Sign */
-unsigned char *vint_pack(unsigned char *dst, int i) 
-{ 
-	*dst = (i>>25)&0x40; /* set sign bit if i<0 */
-	i = i^(i>>31); /* if(i<0) i = ~i */
-
-	*dst |= i&0x3F; /* pack 6bit into dst */
-	i >>= 6; /* discard 6 bits */
-	if(i)
-	{
-		*dst |= 0x80; /* set extend bit */
-		while(1)
-		{
-			dst++;
-			*dst = i&(0x7F); /* pack 7bit */
-			i >>= 7; /* discard 7 bits */
-			*dst |= (i!=0)<<7; /* set extend bit (may branch) */
-			if(!i)
-				break;
-		}
-	}
-
-	dst++;
-	return dst; 
-} 
- 
-const unsigned char *vint_unpack(const unsigned char *src, int *i)
-{ 
-	int sign = (*src>>6)&1; 
-	*i = *src&0x3F; 
-
-	do
-	{ 
-		if(!(*src&0x80)) break;
-		src++;
-		*i |= (*src&(0x7F))<<(6);
-
-		if(!(*src&0x80)) break;
-		src++;
-		*i |= (*src&(0x7F))<<(6+7);
-
-		if(!(*src&0x80)) break;
-		src++;
-		*i |= (*src&(0x7F))<<(6+7+7);
-
-		if(!(*src&0x80)) break;
-		src++;
-		*i |= (*src&(0x7F))<<(6+7+7+7);
-	} while(0);
-
-	src++;
-	*i ^= -sign; /* if(sign) *i = ~(*i) */
-	return src; 
-} 
-
-
-long intpack_decompress(const void *src_, int size, void *dst_)
-{
-	const unsigned char *src = (unsigned char *)src_;
-	const unsigned char *end = src + size;
-	int *dst = (int *)dst_;
-	while(src < end)
-	{
-		src = vint_unpack(src, dst);
-		dst++;
-	}
-	return (long)((unsigned char *)dst-(unsigned char *)dst_);
-}
-
-long intpack_compress(const void *src_, int size, void *dst_)
-{
-	int *src = (int *)src_;
-	unsigned char *dst = (unsigned char *)dst_;
-	size /= 4;
-	while(size)
-	{
-		dst = vint_pack(dst, *src);
-		size--;
-		src++;
-	}
-	return (long)(dst-(unsigned char *)dst_);
-}
-
-
-/* */
-long zerobit_compress(const void *src_, int size, void *dst_)
-{
-	unsigned char *src = (unsigned char *)src_;
-	unsigned char *dst = (unsigned char *)dst_;
-	
-	while(size)
-	{
-		unsigned char bit = 0x80;
-		unsigned char mask = 0;
-		int dst_move = 1;
-		int chunk = size < 8 ? size : 8;
-		int b;
-		size -= chunk;
-		
-		for(b = 0; b < chunk; b++, bit>>=1)
-		{
-			if(*src)
-			{
-				dst[dst_move] = *src;
-				mask |= bit;
-				dst_move++;
-			}
-			
-			src++;
-		}
-		
-		*dst = mask;
-		dst += dst_move;
-	}
-	
-	return (long)(dst-(unsigned char *)dst_);
-}
-
-long zerobit_decompress(const void *src_, int size, void *dst_)
-{
-	unsigned char *src = (unsigned char *)src_;
-	unsigned char *dst = (unsigned char *)dst_;
-	unsigned char *end = src + size;
-
-	
-	while(src != end)
-	{
-		unsigned char bit = 0x80;
-		unsigned char mask = *src++;
-		int b;
-		
-		for(b = 0; b < 8; b++, bit>>=1)
-		{
-			if(mask&bit)
-				*dst++ = *src++;
-			else
-				*dst++ = 0;
-		}
-	}
-	
-	return (long)(dst-(unsigned char *)dst_);
-}
-
-- 
cgit 1.4.1