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Add xdelta3, required for some broken multiplayer updates I plan on committing later

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git-svn-id: https://svn.eduke32.com/eduke32@2661 1a8010ca-5511-0410-912e-c29ae57300e0
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terminx 2012-05-17 21:27:19 +00:00
parent 282036a048
commit 265ff9dbfd
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173
polymer/eduke32/source/xdelta3/xdelta3-cfgs.h Normal file
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/* xdelta 3 - delta compression tools and library
* Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007. Joshua P. MacDonald
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/******************************************************************
SOFT string matcher
******************************************************************/
#if XD3_BUILD_SOFT
#define TEMPLATE soft
#define LLOOK stream->smatcher.large_look
#define LSTEP stream->smatcher.large_step
#define SLOOK stream->smatcher.small_look
#define SCHAIN stream->smatcher.small_chain
#define SLCHAIN stream->smatcher.small_lchain
#define MAXLAZY stream->smatcher.max_lazy
#define LONGENOUGH stream->smatcher.long_enough
#define SOFTCFG 1
#include "xdelta3.c"
#undef SOFTCFG
#undef TEMPLATE
#undef LLOOK
#undef SLOOK
#undef LSTEP
#undef SCHAIN
#undef SLCHAIN
#undef MAXLAZY
#undef LONGENOUGH
#endif
#define SOFTCFG 0
/************************************************************
FASTEST string matcher
**********************************************************/
#if XD3_BUILD_FASTEST
#define TEMPLATE fastest
#define LLOOK 9
#define LSTEP 26
#define SLOOK 4U
#define SCHAIN 1
#define SLCHAIN 1
#define MAXLAZY 6
#define LONGENOUGH 6
#include "xdelta3.c"
#undef TEMPLATE
#undef LLOOK
#undef SLOOK
#undef LSTEP
#undef SCHAIN
#undef SLCHAIN
#undef MAXLAZY
#undef LONGENOUGH
#endif
/************************************************************
FASTER string matcher
**********************************************************/
#if XD3_BUILD_FASTER
#define TEMPLATE faster
#define LLOOK 9
#define LSTEP 15
#define SLOOK 4U
#define SCHAIN 1
#define SLCHAIN 1
#define MAXLAZY 18
#define LONGENOUGH 18
#include "xdelta3.c"
#undef TEMPLATE
#undef LLOOK
#undef SLOOK
#undef LSTEP
#undef SCHAIN
#undef SLCHAIN
#undef MAXLAZY
#undef LONGENOUGH
#endif
/******************************************************
FAST string matcher
********************************************************/
#if XD3_BUILD_FAST
#define TEMPLATE fast
#define LLOOK 9
#define LSTEP 8
#define SLOOK 4U
#define SCHAIN 4
#define SLCHAIN 1
#define MAXLAZY 18
#define LONGENOUGH 35
#include "xdelta3.c"
#undef TEMPLATE
#undef LLOOK
#undef SLOOK
#undef LSTEP
#undef SCHAIN
#undef SLCHAIN
#undef MAXLAZY
#undef LONGENOUGH
#endif
/**************************************************
SLOW string matcher
**************************************************************/
#if XD3_BUILD_SLOW
#define TEMPLATE slow
#define LLOOK 9
#define LSTEP 2
#define SLOOK 4U
#define SCHAIN 44
#define SLCHAIN 13
#define MAXLAZY 90
#define LONGENOUGH 70
#include "xdelta3.c"
#undef TEMPLATE
#undef LLOOK
#undef SLOOK
#undef LSTEP
#undef SCHAIN
#undef SLCHAIN
#undef MAXLAZY
#undef LONGENOUGH
#endif
/********************************************************
DEFAULT string matcher
************************************************************/
#if XD3_BUILD_DEFAULT
#define TEMPLATE default
#define LLOOK 9
#define LSTEP 3
#define SLOOK 4U
#define SCHAIN 8
#define SLCHAIN 2
#define MAXLAZY 36
#define LONGENOUGH 70
#include "xdelta3.c"
#undef TEMPLATE
#undef LLOOK
#undef SLOOK
#undef LSTEP
#undef SCHAIN
#undef SLCHAIN
#undef MAXLAZY
#undef LONGENOUGH
#endif

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polymer/eduke32/source/xdelta3/xdelta3-decode.h Normal file
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polymer/eduke32/source/xdelta3/xdelta3-hash.h Normal file
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/* xdelta 3 - delta compression tools and library
* Copyright (C) 2001, 2003, 2004, 2005, 2006, 2007. Joshua P. MacDonald
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _XDELTA3_HASH_H_
#define _XDELTA3_HASH_H_
#if XD3_DEBUG
#define SMALL_HASH_DEBUG1(s,inp) \
usize_t debug_state; \
usize_t debug_hval = xd3_checksum_hash (& (s)->small_hash, \
xd3_scksum (&debug_state, (inp), (s)->smatcher.small_look))
#define SMALL_HASH_DEBUG2(s,inp) \
XD3_ASSERT (debug_hval == xd3_checksum_hash (& (s)->small_hash, \
xd3_scksum (&debug_state, (inp), (s)->smatcher.small_look)))
#else
#define SMALL_HASH_DEBUG1(s,inp)
#define SMALL_HASH_DEBUG2(s,inp)
#endif /* XD3_DEBUG */
/* This is a good hash multiplier for 32-bit LCGs: see "linear
* congruential generators of different sizes and good lattice
* structure" */
static const uint32_t hash_multiplier = 1597334677U;
/***********************************************************************
Permute stuff
***********************************************************************/
#if HASH_PERMUTE == 0
#define PERMUTE(x) (x)
#else
#define PERMUTE(x) (__single_hash[(uint32_t)x])
static const uint16_t __single_hash[256] =
{
/* Random numbers generated using SLIB's pseudo-random number generator.
* This hashes the input alphabet. */
0xbcd1, 0xbb65, 0x42c2, 0xdffe, 0x9666, 0x431b, 0x8504, 0xeb46,
0x6379, 0xd460, 0xcf14, 0x53cf, 0xdb51, 0xdb08, 0x12c8, 0xf602,
0xe766, 0x2394, 0x250d, 0xdcbb, 0xa678, 0x02af, 0xa5c6, 0x7ea6,
0xb645, 0xcb4d, 0xc44b, 0xe5dc, 0x9fe6, 0x5b5c, 0x35f5, 0x701a,
0x220f, 0x6c38, 0x1a56, 0x4ca3, 0xffc6, 0xb152, 0x8d61, 0x7a58,
0x9025, 0x8b3d, 0xbf0f, 0x95a3, 0xe5f4, 0xc127, 0x3bed, 0x320b,
0xb7f3, 0x6054, 0x333c, 0xd383, 0x8154, 0x5242, 0x4e0d, 0x0a94,
0x7028, 0x8689, 0x3a22, 0x0980, 0x1847, 0xb0f1, 0x9b5c, 0x4176,
0xb858, 0xd542, 0x1f6c, 0x2497, 0x6a5a, 0x9fa9, 0x8c5a, 0x7743,
0xa8a9, 0x9a02, 0x4918, 0x438c, 0xc388, 0x9e2b, 0x4cad, 0x01b6,
0xab19, 0xf777, 0x365f, 0x1eb2, 0x091e, 0x7bf8, 0x7a8e, 0x5227,
0xeab1, 0x2074, 0x4523, 0xe781, 0x01a3, 0x163d, 0x3b2e, 0x287d,
0x5e7f, 0xa063, 0xb134, 0x8fae, 0x5e8e, 0xb7b7, 0x4548, 0x1f5a,
0xfa56, 0x7a24, 0x900f, 0x42dc, 0xcc69, 0x02a0, 0x0b22, 0xdb31,
0x71fe, 0x0c7d, 0x1732, 0x1159, 0xcb09, 0xe1d2, 0x1351, 0x52e9,
0xf536, 0x5a4f, 0xc316, 0x6bf9, 0x8994, 0xb774, 0x5f3e, 0xf6d6,
0x3a61, 0xf82c, 0xcc22, 0x9d06, 0x299c, 0x09e5, 0x1eec, 0x514f,
0x8d53, 0xa650, 0x5c6e, 0xc577, 0x7958, 0x71ac, 0x8916, 0x9b4f,
0x2c09, 0x5211, 0xf6d8, 0xcaaa, 0xf7ef, 0x287f, 0x7a94, 0xab49,
0xfa2c, 0x7222, 0xe457, 0xd71a, 0x00c3, 0x1a76, 0xe98c, 0xc037,
0x8208, 0x5c2d, 0xdfda, 0xe5f5, 0x0b45, 0x15ce, 0x8a7e, 0xfcad,
0xaa2d, 0x4b5c, 0xd42e, 0xb251, 0x907e, 0x9a47, 0xc9a6, 0xd93f,
0x085e, 0x35ce, 0xa153, 0x7e7b, 0x9f0b, 0x25aa, 0x5d9f, 0xc04d,
0x8a0e, 0x2875, 0x4a1c, 0x295f, 0x1393, 0xf760, 0x9178, 0x0f5b,
0xfa7d, 0x83b4, 0x2082, 0x721d, 0x6462, 0x0368, 0x67e2, 0x8624,
0x194d, 0x22f6, 0x78fb, 0x6791, 0xb238, 0xb332, 0x7276, 0xf272,
0x47ec, 0x4504, 0xa961, 0x9fc8, 0x3fdc, 0xb413, 0x007a, 0x0806,
0x7458, 0x95c6, 0xccaa, 0x18d6, 0xe2ae, 0x1b06, 0xf3f6, 0x5050,
0xc8e8, 0xf4ac, 0xc04c, 0xf41c, 0x992f, 0xae44, 0x5f1b, 0x1113,
0x1738, 0xd9a8, 0x19ea, 0x2d33, 0x9698, 0x2fe9, 0x323f, 0xcde2,
0x6d71, 0xe37d, 0xb697, 0x2c4f, 0x4373, 0x9102, 0x075d, 0x8e25,
0x1672, 0xec28, 0x6acb, 0x86cc, 0x186e, 0x9414, 0xd674, 0xd1a5
};
#endif
/* Update the checksum state. */
#if ADLER_LARGE_CKSUM
inline uint32_t
xd3_large_cksum_update (uint32_t cksum,
const uint8_t *base,
usize_t look) {
uint32_t old_c = PERMUTE(base[0]);
uint32_t new_c = PERMUTE(base[look]);
uint32_t low = ((cksum & 0xffff) - old_c + new_c) & 0xffff;
uint32_t high = ((cksum >> 16) - (old_c * look) + low) & 0xffff;
return (high << 16) | low;
}
#else
// TODO: revisit this topic
#endif
/* Note: small cksum is hard-coded for 4 bytes */
#if UNALIGNED_OK
static inline uint32_t
xd3_scksum (uint32_t *state,
const uint8_t *base,
const usize_t look)
{
(*state) = *(uint32_t*)base;
return (*state) * hash_multiplier;
}
static inline uint32_t
xd3_small_cksum_update (uint32_t *state,
const uint8_t *base,
usize_t look)
{
(*state) = *(uint32_t*)(base+1);
return (*state) * hash_multiplier;
}
#else
static inline uint32_t
xd3_scksum (uint32_t *state,
const uint8_t *base,
const usize_t look)
{
(*state) = (base[0] << 24 |
base[1] << 16 |
base[2] << 8 |
base[3]);
return (*state) * hash_multiplier;
}
static inline uint32_t
xd3_small_cksum_update (uint32_t *state,
const uint8_t *base,
const usize_t look)
{
(*state) <<= 8;
(*state) |= base[4];
return (*state) * hash_multiplier;
}
#endif
/***********************************************************************
Ctable stuff
***********************************************************************/
static inline usize_t
xd3_checksum_hash (const xd3_hash_cfg *cfg, const usize_t cksum)
{
return (cksum >> cfg->shift) ^ (cksum & cfg->mask);
}
/***********************************************************************
Cksum function
***********************************************************************/
#if ADLER_LARGE_CKSUM
static inline uint32_t
xd3_lcksum (const uint8_t *seg, const usize_t ln)
{
usize_t i = 0;
uint32_t low = 0;
uint32_t high = 0;
for (; i < ln; i += 1)
{
low += PERMUTE(*seg++);
high += low;
}
return ((high & 0xffff) << 16) | (low & 0xffff);
}
#else
static inline uint32_t
xd3_lcksum (const uint8_t *seg, const usize_t ln)
{
usize_t i, j;
uint32_t h = 0;
for (i = 0, j = ln - 1; i < ln; ++i, --j) {
h += PERMUTE(seg[i]) * hash_multiplier_powers[j];
}
return h;
}
#endif
#if XD3_ENCODER
static usize_t
xd3_size_log2 (usize_t slots)
{
int bits = 28; /* This should not be an unreasonable limit. */
int i;
for (i = 3; i <= bits; i += 1)
{
if (slots < (1U << i))
{
/* TODO: this is compaction=1 in checksum_test.cc and maybe should
* not be fixed at -1. */
bits = i - 1;
break;
}
}
return bits;
}
static void
xd3_size_hashtable (xd3_stream *stream,
usize_t slots,
xd3_hash_cfg *cfg)
{
int bits = xd3_size_log2 (slots);
/* TODO: there's a 32-bit assumption here */
cfg->size = (1 << bits);
cfg->mask = (cfg->size - 1);
cfg->shift = 32 - bits;
}
#endif
#endif

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/* xdelta 3 - delta compression tools and library
* Copyright (C) 2002, 2006, 2007. Joshua P. MacDonald
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __XDELTA3_LIST__
#define __XDELTA3_LIST__
#define XD3_MAKELIST(LTYPE,ETYPE,LNAME) \
\
static inline ETYPE* \
LTYPE ## _entry (LTYPE* l) \
{ \
return (ETYPE*) ((char*) l - (ptrdiff_t) &((ETYPE*) 0)->LNAME); \
} \
\
static inline void \
LTYPE ## _init (LTYPE *l) \
{ \
l->next = l; \
l->prev = l; \
} \
\
static inline void \
LTYPE ## _add (LTYPE *prev, LTYPE *next, LTYPE *ins) \
{ \
next->prev = ins; \
prev->next = ins; \
ins->next = next; \
ins->prev = prev; \
} \
\
static inline void \
LTYPE ## _push_back (LTYPE *l, ETYPE *i) \
{ \
LTYPE ## _add (l->prev, l, & i->LNAME); \
} \
\
static inline void \
LTYPE ## _del (LTYPE *next, \
LTYPE *prev) \
{ \
next->prev = prev; \
prev->next = next; \
} \
\
static inline ETYPE* \
LTYPE ## _remove (ETYPE *f) \
{ \
LTYPE *i = f->LNAME.next; \
LTYPE ## _del (f->LNAME.next, f->LNAME.prev); \
return LTYPE ## _entry (i); \
} \
\
static inline ETYPE* \
LTYPE ## _pop_back (LTYPE *l) \
{ \
LTYPE *i = l->prev; \
LTYPE ## _del (i->next, i->prev); \
return LTYPE ## _entry (i); \
} \
\
static inline ETYPE* \
LTYPE ## _pop_front (LTYPE *l) \
{ \
LTYPE *i = l->next; \
LTYPE ## _del (i->next, i->prev); \
return LTYPE ## _entry (i); \
} \
\
static inline int \
LTYPE ## _empty (LTYPE *l) \
{ \
return l == l->next; \
} \
\
static inline ETYPE* \
LTYPE ## _front (LTYPE *f) \
{ \
return LTYPE ## _entry (f->next); \
} \
\
static inline ETYPE* \
LTYPE ## _back (LTYPE *f) \
{ \
return LTYPE ## _entry (f->prev); \
} \
\
static inline int \
LTYPE ## _end (LTYPE *f, ETYPE *i) \
{ \
return f == & i->LNAME; \
} \
\
static inline ETYPE* \
LTYPE ## _next (ETYPE *f) \
{ \
return LTYPE ## _entry (f->LNAME.next); \
} \
\
static inline usize_t \
LTYPE ## _length (LTYPE *l) \
{ \
LTYPE *p; \
int c = 0; \
\
for (p = l->next; p != l; p = p->next) \
{ \
c += 1; \
} \
\
return c; \
} \
\
typedef int unused_ ## LTYPE
#endif

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