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-rw-r--r--src/lzo1x_c.ch170
1 files changed, 71 insertions, 99 deletions
diff --git a/src/lzo1x_c.ch b/src/lzo1x_c.ch
index b264624..805f71d 100644
--- a/src/lzo1x_c.ch
+++ b/src/lzo1x_c.ch
@@ -2,22 +2,7 @@
This file is part of the LZO real-time data compression library.
- Copyright (C) 2011 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2010 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2009 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2008 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2007 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2006 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2005 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2004 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2003 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer
+ Copyright (C) 1996-2014 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library is free software; you can redistribute it and/or
@@ -44,20 +29,9 @@
#if 1 && defined(DO_COMPRESS) && !defined(do_compress)
/* choose a unique name to better help PGO optimizations */
-# define do_compress LZO_CPP_ECONCAT2(DO_COMPRESS,_core)
+# define do_compress LZO_PP_ECONCAT2(DO_COMPRESS,_core)
#endif
-#if defined(UA_GET64) && (LZO_ABI_BIG_ENDIAN)
-# define WANT_lzo_bitops_clz64 1
-#elif defined(UA_GET64) && (LZO_ABI_LITTLE_ENDIAN)
-# define WANT_lzo_bitops_ctz64 1
-#elif defined(UA_GET32) && (LZO_ABI_BIG_ENDIAN)
-# define WANT_lzo_bitops_clz32 1
-#elif defined(UA_GET32) && (LZO_ABI_LITTLE_ENDIAN)
-# define WANT_lzo_bitops_ctz32 1
-#endif
-#include "lzo_func.ch"
-
/***********************************************************************
// compress a block of data.
@@ -68,7 +42,7 @@ do_compress ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_uint ti, lzo_voidp wrkmem)
{
- register const lzo_bytep ip;
+ const lzo_bytep ip;
lzo_bytep op;
const lzo_bytep const in_end = in + in_len;
const lzo_bytep const ip_end = in + in_len - 20;
@@ -107,8 +81,8 @@ next:
goto literal;
try_match:
-#if defined(UA_GET32)
- if (UA_GET32(m_pos) != UA_GET32(ip))
+#if (LZO_OPT_UNALIGNED32)
+ if (UA_GET_NE32(m_pos) != UA_GET_NE32(ip))
#else
if (m_pos[0] != ip[0] || m_pos[1] != ip[1] || m_pos[2] != ip[2] || m_pos[3] != ip[3])
#endif
@@ -125,18 +99,18 @@ literal:
lzo_uint m_off;
lzo_uint m_len;
{
- lzo_uint32 dv;
+ lzo_uint32_t dv;
lzo_uint dindex;
literal:
ip += 1 + ((ip - ii) >> 5);
next:
if __lzo_unlikely(ip >= ip_end)
break;
- dv = UA_GET32(ip);
+ dv = UA_GET_LE32(ip);
dindex = DINDEX(dv,ip);
GINDEX(m_off,m_pos,in+dict,dindex,in);
UPDATE_I(dict,0,dindex,ip,in);
- if __lzo_unlikely(dv != UA_GET32(m_pos))
+ if __lzo_unlikely(dv != UA_GET_LE32(m_pos))
goto literal;
}
#endif
@@ -145,32 +119,25 @@ next:
ii -= ti; ti = 0;
{
- register lzo_uint t = pd(ip,ii);
+ lzo_uint t = pd(ip,ii);
if (t != 0)
{
if (t <= 3)
{
- op[-2] |= LZO_BYTE(t);
-#if defined(UA_COPY32)
- UA_COPY32(op, ii);
+ op[-2] = LZO_BYTE(op[-2] | t);
+#if (LZO_OPT_UNALIGNED32)
+ UA_COPY4(op, ii);
op += t;
#else
{ do *op++ = *ii++; while (--t > 0); }
#endif
}
-#if defined(UA_COPY32) || defined(UA_COPY64)
+#if (LZO_OPT_UNALIGNED32) || (LZO_OPT_UNALIGNED64)
else if (t <= 16)
{
*op++ = LZO_BYTE(t - 3);
-#if defined(UA_COPY64)
- UA_COPY64(op, ii);
- UA_COPY64(op+8, ii+8);
-#else
- UA_COPY32(op, ii);
- UA_COPY32(op+4, ii+4);
- UA_COPY32(op+8, ii+8);
- UA_COPY32(op+12, ii+12);
-#endif
+ UA_COPY8(op, ii);
+ UA_COPY8(op+8, ii+8);
op += t;
}
#endif
@@ -180,31 +147,21 @@ next:
*op++ = LZO_BYTE(t - 3);
else
{
- register lzo_uint tt = t - 18;
+ lzo_uint tt = t - 18;
*op++ = 0;
while __lzo_unlikely(tt > 255)
{
tt -= 255;
-#if 1 && (LZO_CC_MSC && (_MSC_VER >= 1400))
- * (volatile unsigned char *) op++ = 0;
-#else
- *op++ = 0;
-#endif
+ UA_SET1(op, 0);
+ op++;
}
assert(tt > 0);
*op++ = LZO_BYTE(tt);
}
-#if defined(UA_COPY32) || defined(UA_COPY64)
+#if (LZO_OPT_UNALIGNED32) || (LZO_OPT_UNALIGNED64)
do {
-#if defined(UA_COPY64)
- UA_COPY64(op, ii);
- UA_COPY64(op+8, ii+8);
-#else
- UA_COPY32(op, ii);
- UA_COPY32(op+4, ii+4);
- UA_COPY32(op+8, ii+8);
- UA_COPY32(op+12, ii+12);
-#endif
+ UA_COPY8(op, ii);
+ UA_COPY8(op+8, ii+8);
op += 16; ii += 16; t -= 16;
} while (t >= 16); if (t > 0)
#endif
@@ -214,26 +171,26 @@ next:
}
m_len = 4;
{
-#if defined(UA_GET64)
- lzo_uint64 v;
- v = UA_GET64(ip + m_len) ^ UA_GET64(m_pos + m_len);
+#if (LZO_OPT_UNALIGNED64)
+ lzo_uint64_t v;
+ v = UA_GET_NE64(ip + m_len) ^ UA_GET_NE64(m_pos + m_len);
if __lzo_unlikely(v == 0) {
do {
m_len += 8;
- v = UA_GET64(ip + m_len) ^ UA_GET64(m_pos + m_len);
+ v = UA_GET_NE64(ip + m_len) ^ UA_GET_NE64(m_pos + m_len);
if __lzo_unlikely(ip + m_len >= ip_end)
goto m_len_done;
} while (v == 0);
}
-#if (LZO_ABI_BIG_ENDIAN) && defined(lzo_bitops_clz64)
- m_len += lzo_bitops_clz64(v) / CHAR_BIT;
+#if (LZO_ABI_BIG_ENDIAN) && defined(lzo_bitops_ctlz64)
+ m_len += lzo_bitops_ctlz64(v) / CHAR_BIT;
#elif (LZO_ABI_BIG_ENDIAN)
if ((v >> (64 - CHAR_BIT)) == 0) do {
v <<= CHAR_BIT;
m_len += 1;
} while ((v >> (64 - CHAR_BIT)) == 0);
-#elif (LZO_ABI_LITTLE_ENDIAN) && defined(lzo_bitops_ctz64)
- m_len += lzo_bitops_ctz64(v) / CHAR_BIT;
+#elif (LZO_ABI_LITTLE_ENDIAN) && defined(lzo_bitops_cttz64)
+ m_len += lzo_bitops_cttz64(v) / CHAR_BIT;
#elif (LZO_ABI_LITTLE_ENDIAN)
if ((v & UCHAR_MAX) == 0) do {
v >>= CHAR_BIT;
@@ -244,26 +201,30 @@ next:
m_len += 1;
} while (ip[m_len] == m_pos[m_len]);
#endif
-#elif defined(UA_GET32)
- lzo_uint32 v;
- v = UA_GET32(ip + m_len) ^ UA_GET32(m_pos + m_len);
+#elif (LZO_OPT_UNALIGNED32)
+ lzo_uint32_t v;
+ v = UA_GET_NE32(ip + m_len) ^ UA_GET_NE32(m_pos + m_len);
if __lzo_unlikely(v == 0) {
do {
m_len += 4;
- v = UA_GET32(ip + m_len) ^ UA_GET32(m_pos + m_len);
+ v = UA_GET_NE32(ip + m_len) ^ UA_GET_NE32(m_pos + m_len);
+ if (v != 0)
+ break;
+ m_len += 4;
+ v = UA_GET_NE32(ip + m_len) ^ UA_GET_NE32(m_pos + m_len);
if __lzo_unlikely(ip + m_len >= ip_end)
goto m_len_done;
} while (v == 0);
}
-#if (LZO_ABI_BIG_ENDIAN) && defined(lzo_bitops_clz32)
- m_len += lzo_bitops_clz32(v) / CHAR_BIT;
+#if (LZO_ABI_BIG_ENDIAN) && defined(lzo_bitops_ctlz32)
+ m_len += lzo_bitops_ctlz32(v) / CHAR_BIT;
#elif (LZO_ABI_BIG_ENDIAN)
if ((v >> (32 - CHAR_BIT)) == 0) do {
v <<= CHAR_BIT;
m_len += 1;
} while ((v >> (32 - CHAR_BIT)) == 0);
-#elif (LZO_ABI_LITTLE_ENDIAN) && defined(lzo_bitops_ctz32)
- m_len += lzo_bitops_ctz32(v) / CHAR_BIT;
+#elif (LZO_ABI_LITTLE_ENDIAN) && defined(lzo_bitops_cttz32)
+ m_len += lzo_bitops_cttz32(v) / CHAR_BIT;
#elif (LZO_ABI_LITTLE_ENDIAN)
if ((v & UCHAR_MAX) == 0) do {
v >>= CHAR_BIT;
@@ -278,6 +239,27 @@ next:
if __lzo_unlikely(ip[m_len] == m_pos[m_len]) {
do {
m_len += 1;
+ if (ip[m_len] != m_pos[m_len])
+ break;
+ m_len += 1;
+ if (ip[m_len] != m_pos[m_len])
+ break;
+ m_len += 1;
+ if (ip[m_len] != m_pos[m_len])
+ break;
+ m_len += 1;
+ if (ip[m_len] != m_pos[m_len])
+ break;
+ m_len += 1;
+ if (ip[m_len] != m_pos[m_len])
+ break;
+ m_len += 1;
+ if (ip[m_len] != m_pos[m_len])
+ break;
+ m_len += 1;
+ if (ip[m_len] != m_pos[m_len])
+ break;
+ m_len += 1;
if __lzo_unlikely(ip + m_len >= ip_end)
goto m_len_done;
} while (ip[m_len] == m_pos[m_len]);
@@ -311,11 +293,8 @@ m_len_done:
while __lzo_unlikely(m_len > 255)
{
m_len -= 255;
-#if 1 && (LZO_CC_MSC && (_MSC_VER >= 1400))
- * (volatile unsigned char *) op++ = 0;
-#else
- *op++ = 0;
-#endif
+ UA_SET1(op, 0);
+ op++;
}
*op++ = LZO_BYTE(m_len);
}
@@ -334,11 +313,8 @@ m_len_done:
while __lzo_unlikely(m_len > 255)
{
m_len -= 255;
-#if 1 && (LZO_CC_MSC && (_MSC_VER >= 1400))
- * (volatile unsigned char *) op++ = 0;
-#else
- *op++ = 0;
-#endif
+ UA_SET1(op, 0);
+ op++;
}
*op++ = LZO_BYTE(m_len);
}
@@ -394,7 +370,7 @@ DO_COMPRESS ( const lzo_bytep in , lzo_uint in_len,
if (op == out && t <= 238)
*op++ = LZO_BYTE(17 + t);
else if (t <= 3)
- op[-2] |= LZO_BYTE(t);
+ op[-2] = LZO_BYTE(op[-2] | t);
else if (t <= 18)
*op++ = LZO_BYTE(t - 3);
else
@@ -405,18 +381,14 @@ DO_COMPRESS ( const lzo_bytep in , lzo_uint in_len,
while (tt > 255)
{
tt -= 255;
-#if 1 && (LZO_CC_MSC && (_MSC_VER >= 1400))
- /* prevent the compiler from transforming this loop
- * into a memset() call */
- * (volatile unsigned char *) op++ = 0;
-#else
- *op++ = 0;
-#endif
+ UA_SET1(op, 0);
+ op++;
}
assert(tt > 0);
*op++ = LZO_BYTE(tt);
}
- do *op++ = *ii++; while (--t > 0);
+ UA_COPYN(op, ii, t);
+ op += t;
}
*op++ = M4_MARKER | 1;
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