Modified a few comments

git-svn-id: https://lz4.googlecode.com/svn/trunk@32 650e7d94-2a16-8b24-b05c-7c0b3f6821cd

1 files changed, 9 insertions, 10 deletions

diff --git a/lz4.c b/lz4.c
index 025ae5a..c8e4072 100644
--- a/lz4.c
+++ b/lz4.c
@@ -38,9 +38,9 @@
 //**************************************

 // Performance parameter               

 //**************************************

-// Lowering this value reduce memory usage

-// It may also improve speed, especially if you reach L1 cache size (32KB for Intel, 64KB for AMD)

-// Expanding memory usage typically improves compression ratio

+// Increasing this value improves compression ratio

+// Lowering this value reduces memory usage

+// Lowering may also improve speed, typically on reaching cache size limits (L1 32KB for Intel, 64KB for AMD)

 // Memory usage formula for 32 bits systems : N->2^(N+2) Bytes (examples : 17 -> 512KB ; 12 -> 16KB)

 #define HASH_LOG 12

 

@@ -72,8 +72,8 @@
 #define COPYTOKEN 4

 #define COPYLENGTH 8

 #define LASTLITERALS 5

-#define MFLIMIT 12

-#define MINLENGTH 13

+#define MFLIMIT (COPYLENGTH+MINMATCH)

+#define MINLENGTH (MFLIMIT+1)

 

 #define MAXD_LOG 16

 #define MAX_DISTANCE ((1 << MAXD_LOG) - 1)

@@ -102,7 +102,6 @@ struct refTables
 #define LZ4_HASH_FUNCTION(i)	(((i) * 2654435761U) >> ((MINMATCH*8)-HASH_LOG))

 #define LZ4_HASH_VALUE(p)		LZ4_HASH_FUNCTION(*(U32*)(p))

 #define LZ4_COPYPACKET(s,d)		*(U32*)d = *(U32*)s; d+=4; s+=4; *(U32*)d = *(U32*)s; d+=4; s+=4;

-#define LZ4_COPY(s,d,e)			while (d<e) { LZ4_COPYPACKET(s,d) }

 #define LZ4_WILDCOPY(s,d,e)		do { LZ4_COPYPACKET(s,d) } while (d<e);

 #define LZ4_BLINDCOPY(s,d,l)	{ BYTE* e=d+l; LZ4_WILDCOPY(s,d,e); d=e; }

 

@@ -285,8 +284,8 @@ int LZ4_uncompress(char* source,
 

 	BYTE token;

 	

-	U32		dec[4]={0, 3, 2, 3};

-	int		len, length;

+	U32	dec[4]={0, 3, 2, 3};

+	int	len, length;

 

 

 	// Main Loop

@@ -364,8 +363,8 @@ int LZ4_uncompress_unknownOutputSize(
 

 	BYTE token;

 	

-	U32		dec[4]={0, 3, 2, 3};

-	int		len, length;

+	U32	dec[4]={0, 3, 2, 3};

+	int	len, length;

 

 

 	// Main Loop