From 1a43c89db39f46ce22d3071c859e5e52cc0c41d1 Mon Sep 17 00:00:00 2001
From: Sergey Lipskiy <gonetz@ngs.ru>
Date: Wed, 3 Sep 2014 12:08:04 +0700
Subject: [PATCH] Code cleanup: cleanup CRC.h and CRC.cpp

---
 CRC.cpp | 59 +++++++++++++++++++++++++++------------------------------
 CRC.h   |  4 ++--
 2 files changed, 30 insertions(+), 33 deletions(-)

diff --git a/CRC.cpp b/CRC.cpp
index 40bfeb32..7dc05846 100644
--- a/CRC.cpp
+++ b/CRC.cpp
@@ -6,58 +6,55 @@ unsigned int CRCTable[ 256 ];
 
 u32 Reflect( u32 ref, char ch )
 {
-     u32 value = 0;
+	 u32 value = 0;
 
-     // Swap bit 0 for bit 7
-     // bit 1 for bit 6, etc.
-     for (int i = 1; i < (ch + 1); i++)
-     {
-          if(ref & 1)
-               value |= 1 << (ch - i);
-          ref >>= 1;
-     }
-     return value;
+	 // Swap bit 0 for bit 7
+	 // bit 1 for bit 6, etc.
+	 for (int i = 1; i < (ch + 1); ++i) {
+		  if(ref & 1)
+			value |= 1 << (ch - i);
+		  ref >>= 1;
+	 }
+	 return value;
 }
 
 void CRC_BuildTable()
 {
-    u32 crc;
+	u32 crc;
 
-    for (int i = 0; i < 256; i++)
-    {
-        crc = Reflect( i, 8 ) << 24;
-        for (int j = 0; j < 8; j++)
+	for (int i = 0; i < 256; ++i) {
+		crc = Reflect( i, 8 ) << 24;
+		for (int j = 0; j < 8; ++j)
 			crc = (crc << 1) ^ (crc & (1 << 31) ? CRC32_POLYNOMIAL : 0);
-        
-        CRCTable[i] = Reflect( crc, 32 );
-    }
+
+		CRCTable[i] = Reflect( crc, 32 );
+	}
 }
 
-u32 CRC_Calculate( u32 crc, void *buffer, u32 count )
+u32 CRC_Calculate( u32 crc, const void * buffer, u32 count )
 {
-    u8 *p;
-    u32 orig = crc;
+	u8 *p;
+	u32 orig = crc;
 
-    p = (u8*) buffer;
-    while (count--)
+	p = (u8*) buffer;
+	while (count--)
 		crc = (crc >> 8) ^ CRCTable[(crc & 0xFF) ^ *p++];
 
-    return crc ^ orig;
+	return crc ^ orig;
 }
 
-u32 CRC_CalculatePalette( u32 crc, void *buffer, u32 count )
+u32 CRC_CalculatePalette(u32 crc, const void * buffer, u32 count )
 {
-    u8 *p;
-    u32 orig = crc;
+	u8 *p;
+	u32 orig = crc;
 
-    p = (u8*) buffer;
-    while (count--)
-	{
+	p = (u8*) buffer;
+	while (count--) {
 		crc = (crc >> 8) ^ CRCTable[(crc & 0xFF) ^ *p++];
 		crc = (crc >> 8) ^ CRCTable[(crc & 0xFF) ^ *p++];
 
 		p += 6;
 	}
 
-    return crc ^ orig;
+	return crc ^ orig;
 }
diff --git a/CRC.h b/CRC.h
index 01527dee..f006cdea 100644
--- a/CRC.h
+++ b/CRC.h
@@ -2,5 +2,5 @@
 
 void CRC_BuildTable();
 
-u32 CRC_Calculate( u32 crc, void *buffer, u32 count );
-u32 CRC_CalculatePalette( u32 crc, void *buffer, u32 count );
+u32 CRC_Calculate( u32 crc, const void *buffer, u32 count );
+u32 CRC_CalculatePalette( u32 crc, const void *buffer, u32 count );