/* This file is part of the LZO real-time data compression library. Copyright (C) 1996..2008 Markus Franz Xaver Johannes Oberhumer All Rights Reserved. Markus F.X.J. Oberhumer <markus@oberhumer.com> http://www.oberhumer.com/opensource/lzo/ The LZO library is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The LZO library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with the LZO library; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #include "liblzo_interface.h" /* lzo-2.03/src/config1x.h */ #define M2_MIN_LEN 3 #define M2_MAX_LEN 8 #define M3_MAX_LEN 33 #define M4_MAX_LEN 9 #define M1_MAX_OFFSET 0x0400 #define M2_MAX_OFFSET 0x0800 #define M3_MAX_OFFSET 0x4000 #define M4_MAX_OFFSET 0xbfff #define M1_MARKER 0 #define M3_MARKER 32 #define M4_MARKER 16 #define MX_MAX_OFFSET (M1_MAX_OFFSET + M2_MAX_OFFSET) #define MIN_LOOKAHEAD (M2_MAX_LEN + 1) #define LZO_EOF_CODE /* lzo-2.03/src/lzo_dict.h */ #define GINDEX(m_pos,m_off,dict,dindex,in) m_pos = dict[dindex] #define DX2(p,s1,s2) \ (((((unsigned)((p)[2]) << (s2)) ^ (p)[1]) << (s1)) ^ (p)[0]) //#define DA3(p,s1,s2,s3) ((DA2((p)+1,s2,s3) << (s1)) + (p)[0]) //#define DS3(p,s1,s2,s3) ((DS2((p)+1,s2,s3) << (s1)) - (p)[0]) #define DX3(p,s1,s2,s3) ((DX2((p)+1,s2,s3) << (s1)) ^ (p)[0]) #define D_SIZE (1U << D_BITS) #define D_MASK ((1U << D_BITS) - 1) #define D_HIGH ((D_MASK >> 1) + 1) #define LZO_CHECK_MPOS_NON_DET(m_pos,m_off,in,ip,max_offset) \ ( \ m_pos = ip - (unsigned)(ip - m_pos), \ ((uintptr_t)m_pos < (uintptr_t)in \ || (m_off = (unsigned)(ip - m_pos)) <= 0 \ || m_off > max_offset) \ ) #define DENTRY(p,in) (p) #define UPDATE_I(dict,drun,index,p,in) dict[index] = DENTRY(p,in) #define DMS(v,s) ((unsigned) (((v) & (D_MASK >> (s))) << (s))) #define DM(v) ((unsigned) ((v) & D_MASK)) #define DMUL(a,b) ((unsigned) ((a) * (b))) /* lzo-2.03/src/lzo_ptr.h */ #define pd(a,b) ((unsigned)((a)-(b))) # define TEST_IP (ip < ip_end) # define NEED_IP(x) \ if ((unsigned)(ip_end - ip) < (unsigned)(x)) goto input_overrun # define TEST_IV(x) if ((x) > (unsigned)0 - (511)) goto input_overrun # undef TEST_OP /* don't need both of the tests here */ # define TEST_OP 1 # define NEED_OP(x) \ if ((unsigned)(op_end - op) < (unsigned)(x)) goto output_overrun # define TEST_OV(x) if ((x) > (unsigned)0 - (511)) goto output_overrun #define HAVE_ANY_OP 1 //#if defined(LZO_TEST_OVERRUN_LOOKBEHIND) # define TEST_LB(m_pos) if (m_pos < out || m_pos >= op) goto lookbehind_overrun //# define TEST_LBO(m_pos,o) if (m_pos < out || m_pos >= op - (o)) goto lookbehind_overrun //#else //# define TEST_LB(m_pos) ((void) 0) //# define TEST_LBO(m_pos,o) ((void) 0) //#endif