diff options
Diffstat (limited to 'src/lzo1f_d.ch')
| -rw-r--r-- | src/lzo1f_d.ch | 45 |
1 files changed, 16 insertions, 29 deletions
diff --git a/src/lzo1f_d.ch b/src/lzo1f_d.ch index 9e942f5..b22916e 100644 --- a/src/lzo1f_d.ch +++ b/src/lzo1f_d.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 @@ -53,10 +38,10 @@ DO_DECOMPRESS ( const lzo_bytep in , lzo_uint in_len, lzo_bytep out, lzo_uintp out_len, lzo_voidp wrkmem ) { - register lzo_bytep op; - register const lzo_bytep ip; - register lzo_uint t; - register const lzo_bytep m_pos; + lzo_bytep op; + const lzo_bytep ip; + lzo_uint t; + const lzo_bytep m_pos; const lzo_bytep const ip_end = in + in_len; #if defined(HAVE_ANY_OP) @@ -70,7 +55,7 @@ DO_DECOMPRESS ( const lzo_bytep in , lzo_uint in_len, op = out; ip = in; - while (TEST_IP && TEST_OP) + while (TEST_IP_AND_TEST_OP) { t = *ip++; if (t > 31) @@ -84,17 +69,18 @@ DO_DECOMPRESS ( const lzo_bytep in , lzo_uint in_len, { t += 255; ip++; + TEST_IV(t); NEED_IP(1); } t += 31 + *ip++; } /* copy literals */ assert(t > 0); NEED_OP(t); NEED_IP(t+1); -#if defined(LZO_UNALIGNED_OK_4) +#if (LZO_OPT_UNALIGNED32) if (t >= 4) { do { - UA_COPY32(op, ip); + UA_COPY4(op, ip); op += 4; ip += 4; t -= 4; } while (t >= 4); if (t > 0) do *op++ = *ip++; while (--t > 0); @@ -105,7 +91,7 @@ DO_DECOMPRESS ( const lzo_bytep in , lzo_uint in_len, t = *ip++; - while (TEST_IP && TEST_OP) + while (TEST_IP_AND_TEST_OP) { /* handle matches */ if (t < 32) @@ -138,14 +124,15 @@ match: { t += 255; ip++; + TEST_OV(t); NEED_IP(1); } t += 31 + *ip++; } NEED_IP(2); m_pos = op; -#if defined(LZO_UNALIGNED_OK_2) && defined(LZO_ABI_LITTLE_ENDIAN) - m_pos -= UA_GET16(ip) >> 2; +#if (LZO_OPT_UNALIGNED16) && (LZO_ABI_LITTLE_ENDIAN) + m_pos -= UA_GET_LE16(ip) >> 2; ip += 2; #else m_pos -= *ip++ >> 2; @@ -157,13 +144,13 @@ match: /* copy match */ TEST_LB(m_pos); assert(t > 0); NEED_OP(t+3-1); -#if defined(LZO_UNALIGNED_OK_4) +#if (LZO_OPT_UNALIGNED32) if (t >= 2 * 4 - (3 - 1) && (op - m_pos) >= 4) { - UA_COPY32(op, m_pos); + UA_COPY4(op, m_pos); op += 4; m_pos += 4; t -= 4 - (3 - 1); do { - UA_COPY32(op, m_pos); + UA_COPY4(op, m_pos); op += 4; m_pos += 4; t -= 4; } while (t >= 4); if (t > 0) do *op++ = *m_pos++; while (--t > 0); |