src/liblzma/common/raw_decoder.c

   1 ///////////////////////////////////////////////////////////////////////////////
   2 //
   3 /// \file       raw_decoder.c
   4 /// \brief      Raw decoder initialization API
   5 //
   6 //  Copyright (C) 2007 Lasse Collin
   7 //
   8 //  This library is free software; you can redistribute it and/or
   9 //  modify it under the terms of the GNU Lesser General Public
  10 //  License as published by the Free Software Foundation; either
  11 //  version 2.1 of the License, or (at your option) any later version.
  12 //
  13 //  This library is distributed in the hope that it will be useful,
  14 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 //  Lesser General Public License for more details.
  17 //
  18 ///////////////////////////////////////////////////////////////////////////////
  19
  20 #include "raw_decoder.h"
  21 #include "copy_coder.h"
  22 #include "simple_coder.h"
  23 #include "subblock_decoder.h"
  24 #include "subblock_decoder_helper.h"
  25 #include "delta_decoder.h"
  26 #include "lzma_decoder.h"
  27 #include "metadata_decoder.h"
  28
  29
  30 static lzma_init_function
  31 get_function(lzma_vli id)
  32 {
  33         switch (id) {
  34 #ifdef HAVE_FILTER_COPY
  35         case LZMA_FILTER_COPY:
  36                 return &lzma_copy_decoder_init;
  37 #endif
  38
  39 #ifdef HAVE_FILTER_SUBBLOCK
  40         case LZMA_FILTER_SUBBLOCK:
  41                 return &lzma_subblock_decoder_init;
  42 #endif
  43
  44 #ifdef HAVE_FILTER_X86
  45         case LZMA_FILTER_X86:
  46                 return &lzma_simple_x86_decoder_init;
  47 #endif
  48
  49 #ifdef HAVE_FILTER_POWERPC
  50         case LZMA_FILTER_POWERPC:
  51                 return &lzma_simple_powerpc_decoder_init;
  52 #endif
  53
  54 #ifdef HAVE_FILTER_IA64
  55         case LZMA_FILTER_IA64:
  56                 return &lzma_simple_ia64_decoder_init;
  57 #endif
  58
  59 #ifdef HAVE_FILTER_ARM
  60         case LZMA_FILTER_ARM:
  61                 return &lzma_simple_arm_decoder_init;
  62 #endif
  63
  64 #ifdef HAVE_FILTER_ARMTHUMB
  65         case LZMA_FILTER_ARMTHUMB:
  66                 return &lzma_simple_armthumb_decoder_init;
  67 #endif
  68
  69 #ifdef HAVE_FILTER_SPARC
  70         case LZMA_FILTER_SPARC:
  71                 return &lzma_simple_sparc_decoder_init;
  72 #endif
  73
  74 #ifdef HAVE_FILTER_DELTA
  75         case LZMA_FILTER_DELTA:
  76                 return &lzma_delta_decoder_init;
  77 #endif
  78
  79 #ifdef HAVE_FILTER_LZMA
  80         case LZMA_FILTER_LZMA:
  81                 return &lzma_lzma_decoder_init;
  82 #endif
  83
  84 #ifdef HAVE_FILTER_SUBBLOCK
  85         case LZMA_FILTER_SUBBLOCK_HELPER:
  86                 return &lzma_subblock_decoder_helper_init;
  87 #endif
  88         }
  89
  90         return NULL;
  91 }
  92
  93
  94 extern lzma_ret
  95 lzma_raw_decoder_init(lzma_next_coder *next, lzma_allocator *allocator,
  96                 const lzma_options_filter *options,
  97                 lzma_vli uncompressed_size, bool allow_implicit)
  98 {
  99         const lzma_ret ret = lzma_raw_coder_init(next, allocator,
 100                         options, uncompressed_size, &get_function,
 101                         allow_implicit, false);
 102
 103         if (ret != LZMA_OK)
 104                 lzma_next_coder_end(next, allocator);
 105
 106         return ret;
 107 }
 108
 109
 110 extern LZMA_API lzma_ret
 111 lzma_raw_decoder(lzma_stream *strm, const lzma_options_filter *options,
 112                 lzma_vli uncompressed_size, lzma_bool allow_implicit)
 113 {
 114         return_if_error(lzma_strm_init(strm));
 115
 116         strm->internal->supported_actions[LZMA_RUN] = true;
 117         strm->internal->supported_actions[LZMA_SYNC_FLUSH] = true;
 118
 119         const lzma_ret ret = lzma_raw_coder_init(&strm->internal->next,
 120                         strm->allocator, options, uncompressed_size,
 121                         &get_function, allow_implicit, false);
 122
 123         if (ret != LZMA_OK)
 124                 lzma_end(strm);
 125
 126         return ret;
 127 }