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author | Lasse Collin <lasse.collin@tukaani.org> | 2008-08-28 22:53:15 +0300 |
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committer | Lasse Collin <lasse.collin@tukaani.org> | 2008-08-28 22:53:15 +0300 |
commit | 3b34851de1eaf358cf9268922fa0eeed8278d680 (patch) | |
tree | 7bab212af647541df64227a8d350d17a2e789f6b /src/liblzma/lzma/lzma_literal.h | |
parent | Fix test_filter_flags to match the new restriction of lc+lp. (diff) | |
download | xz-3b34851de1eaf358cf9268922fa0eeed8278d680.tar.xz |
Sort of garbage collection commit. :-| Many things are still
broken. API has changed a lot and it will still change a
little more here and there. The command line tool doesn't
have all the required changes to reflect the API changes, so
it's easy to get "internal error" or trigger assertions.
Diffstat (limited to 'src/liblzma/lzma/lzma_literal.h')
-rw-r--r-- | src/liblzma/lzma/lzma_literal.h | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/src/liblzma/lzma/lzma_literal.h b/src/liblzma/lzma/lzma_literal.h deleted file mode 100644 index 208abd99..00000000 --- a/src/liblzma/lzma/lzma_literal.h +++ /dev/null @@ -1,71 +0,0 @@ -/////////////////////////////////////////////////////////////////////////////// -// -/// \file lzma_literal.h -/// \brief Literal Coder -/// -/// This is used as is by both LZMA encoder and decoder. -// -// Copyright (C) 1999-2006 Igor Pavlov -// Copyright (C) 2007 Lasse Collin -// -// This library is free software; you can redistribute it and/or -// modify it under the terms of the GNU Lesser General Public -// License as published by the Free Software Foundation; either -// version 2.1 of the License, or (at your option) any later version. -// -// This 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 -// Lesser General Public License for more details. -// -/////////////////////////////////////////////////////////////////////////////// - -#ifndef LZMA_LITERAL_H -#define LZMA_LITERAL_H - -#include "common.h" - -// We need typedef of `probability'. -#include "range_common.h" - - -/// Each literal coder is divided in three sections: -/// - 0x001-0x0FF: Without match byte -/// - 0x101-0x1FF: With match byte; match bit is 0 -/// - 0x201-0x2FF: With match byte; match bit is 1 -#define LIT_SIZE 0x300 - -/// Calculate how many states are needed. Each state has -/// LIT_SIZE `probability' variables. -#define literal_states(literal_context_bits, literal_pos_bits) \ - (1U << ((literal_context_bits) + (literal_pos_bits))) - -/// Locate the literal coder for the next literal byte. The choice depends on -/// - the lowest literal_pos_bits bits of the position of the current -/// byte; and -/// - the highest literal_context_bits bits of the previous byte. -#define literal_get_subcoder(literal_coder, pos, prev_byte) \ - (literal_coder).coders[(((pos) & (literal_coder).literal_pos_mask) \ - << (literal_coder).literal_context_bits) \ - + ((prev_byte) >> (8 - (literal_coder).literal_context_bits))] - - -typedef struct { - uint32_t literal_context_bits; - uint32_t literal_pos_bits; - - /// literal_pos_mask is always (1 << literal_pos_bits) - 1. - uint32_t literal_pos_mask; - - /// There are (1 << (literal_pos_bits + literal_context_bits)) - /// literal coders. - probability coders[1 << LZMA_LITERAL_BITS_MAX][LIT_SIZE]; - -} lzma_literal_coder; - - -extern lzma_ret lzma_literal_init( - lzma_literal_coder *coder, - uint32_t literal_context_bits, uint32_t literal_pos_bits); - -#endif |