*: move lzo compressor code to archival/libunarchive/. No code changes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 93 insertions, 0 deletions

diff --git a/archival/libunarchive/liblzo.h b/archival/libunarchive/liblzo.h
new file mode 100644
index 000000000..843997cb9
--- /dev/null
+++ b/archival/libunarchive/liblzo.h
@@ -0,0 +1,93 @@
+/*
+   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
+
+#    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 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