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-rw-r--r--src/liblzma/common/raw_common.c127
1 files changed, 0 insertions, 127 deletions
diff --git a/src/liblzma/common/raw_common.c b/src/liblzma/common/raw_common.c
deleted file mode 100644
index 35252fc2..00000000
--- a/src/liblzma/common/raw_common.c
+++ /dev/null
@@ -1,127 +0,0 @@
-///////////////////////////////////////////////////////////////////////////////
-//
-/// \file raw_common.c
-/// \brief Stuff shared between raw encoder and raw decoder
-//
-// 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.
-//
-///////////////////////////////////////////////////////////////////////////////
-
-#include "raw_common.h"
-
-
-static lzma_ret
-validate_options(const lzma_options_filter *options, size_t *count)
-{
- if (options == NULL)
- return LZMA_PROG_ERROR;
-
- // Number of non-last filters that may change the size of the data
- // significantly (that is, more than 1-2 % or so).
- size_t change = 0;
-
- // True if the last filter in the given chain is actually usable as
- // the last filter. Only filters that support embedding End of Payload
- // Marker can be used as the last filter in the chain.
- bool last_ok = false;
-
- size_t i;
- for (i = 0; options[i].id != LZMA_VLI_VALUE_UNKNOWN; ++i) {
- switch (options[i].id) {
- // Not #ifdeffing these for simplicity.
- case LZMA_FILTER_X86:
- case LZMA_FILTER_POWERPC:
- case LZMA_FILTER_IA64:
- case LZMA_FILTER_ARM:
- case LZMA_FILTER_ARMTHUMB:
- case LZMA_FILTER_SPARC:
- case LZMA_FILTER_DELTA:
- // These don't change the size of the data and cannot
- // be used as the last filter in the chain.
- last_ok = false;
- break;
-
-#ifdef HAVE_FILTER_SUBBLOCK
- case LZMA_FILTER_SUBBLOCK:
- last_ok = true;
- ++change;
- break;
-#endif
-
-#ifdef HAVE_FILTER_LZMA
- case LZMA_FILTER_LZMA:
- last_ok = true;
- break;
-#endif
-
- default:
- return LZMA_HEADER_ERROR;
- }
- }
-
- // There must be 1-4 filters and the last filter must be usable as
- // the last filter in the chain.
- if (i == 0 || i > 4 || !last_ok)
- return LZMA_HEADER_ERROR;
-
- // At maximum of two non-last filters are allowed to change the
- // size of the data.
- if (change > 2)
- return LZMA_HEADER_ERROR;
-
- *count = i;
- return LZMA_OK;
-}
-
-
-extern lzma_ret
-lzma_raw_coder_init(lzma_next_coder *next, lzma_allocator *allocator,
- const lzma_options_filter *options,
- lzma_init_function (*get_function)(lzma_vli id),
- bool is_encoder)
-{
- // Do some basic validation and get the number of filters.
- size_t count;
- return_if_error(validate_options(options, &count));
-
- // Set the filter functions and copy the options pointer.
- lzma_filter_info filters[count + 1];
- if (is_encoder) {
- for (size_t i = 0; i < count; ++i) {
- // The order of the filters is reversed in the
- // encoder. It allows more efficient handling
- // of the uncompressed data.
- const size_t j = count - i - 1;
-
- filters[j].init = get_function(options[i].id);
- if (filters[j].init == NULL)
- return LZMA_HEADER_ERROR;
-
- filters[j].options = options[i].options;
- }
- } else {
- for (size_t i = 0; i < count; ++i) {
- filters[i].init = get_function(options[i].id);
- if (filters[i].init == NULL)
- return LZMA_HEADER_ERROR;
-
- filters[i].options = options[i].options;
- }
- }
-
- // Terminate the array.
- filters[count].init = NULL;
-
- // Initialize the filters.
- return lzma_next_filter_init(next, allocator, filters);
-}