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-rw-r--r--src/liblzma/common/copy_coder.c144
1 files changed, 0 insertions, 144 deletions
diff --git a/src/liblzma/common/copy_coder.c b/src/liblzma/common/copy_coder.c
deleted file mode 100644
index 0bd674f6..00000000
--- a/src/liblzma/common/copy_coder.c
+++ /dev/null
@@ -1,144 +0,0 @@
-///////////////////////////////////////////////////////////////////////////////
-//
-/// \file copy_coder.c
-/// \brief The Copy filter encoder and 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 "copy_coder.h"
-
-
-struct lzma_coder_s {
- lzma_next_coder next;
- lzma_vli uncompressed_size;
-};
-
-
-#ifdef HAVE_ENCODER
-static lzma_ret
-copy_encode(lzma_coder *coder, lzma_allocator *allocator,
- const uint8_t *restrict in, size_t *restrict in_pos,
- size_t in_size, uint8_t *restrict out,
- size_t *restrict out_pos, size_t out_size, lzma_action action)
-{
- // If we aren't the last filter in the chain, the Copy filter
- // is totally useless. Note that it is job of the next coder to
- // take care of Uncompressed Size, so we don't need to update our
- // coder->uncompressed_size at all.
- if (coder->next.code != NULL)
- return coder->next.code(coder->next.coder, allocator,
- in, in_pos, in_size, out, out_pos, out_size,
- action);
-
- // We are the last coder in the chain.
- // Just copy as much data as possible.
- bufcpy(in, in_pos, in_size, out, out_pos, out_size);
-
- // LZMA_SYNC_FLUSH and LZMA_FINISH are the same thing for us.
- if (action != LZMA_RUN && *in_pos == in_size)
- return LZMA_STREAM_END;
-
- return LZMA_OK;
-}
-#endif
-
-
-#ifdef HAVE_DECODER
-static lzma_ret
-copy_decode(lzma_coder *coder, lzma_allocator *allocator,
- const uint8_t *restrict in, size_t *restrict in_pos,
- size_t in_size, uint8_t *restrict out,
- size_t *restrict out_pos, size_t out_size, lzma_action action)
-{
- if (coder->next.code != NULL)
- return coder->next.code(coder->next.coder, allocator,
- in, in_pos, in_size, out, out_pos, out_size,
- action);
-
- assert(coder->uncompressed_size <= LZMA_VLI_VALUE_MAX);
-
- const size_t in_avail = in_size - *in_pos;
-
- // Limit in_size so that we don't copy too much.
- if ((lzma_vli)(in_avail) > coder->uncompressed_size)
- in_size = *in_pos + (size_t)(coder->uncompressed_size);
-
- // We are the last coder in the chain.
- // Just copy as much data as possible.
- const size_t in_used = bufcpy(
- in, in_pos, in_size, out, out_pos, out_size);
-
- // Update uncompressed_size if it is known.
- if (coder->uncompressed_size != LZMA_VLI_VALUE_UNKNOWN)
- coder->uncompressed_size -= in_used;
-
- return coder->uncompressed_size == 0 ? LZMA_STREAM_END : LZMA_OK;
-}
-#endif
-
-
-static void
-copy_coder_end(lzma_coder *coder, lzma_allocator *allocator)
-{
- lzma_next_coder_end(&coder->next, allocator);
- lzma_free(coder, allocator);
- return;
-}
-
-
-static lzma_ret
-copy_coder_init(lzma_next_coder *next, lzma_allocator *allocator,
- const lzma_filter_info *filters, lzma_code_function encode)
-{
- // Allocate memory for the decoder if needed.
- if (next->coder == NULL) {
- next->coder = lzma_alloc(sizeof(lzma_coder), allocator);
- if (next->coder == NULL)
- return LZMA_MEM_ERROR;
-
- next->code = encode;
- next->end = &copy_coder_end;
- next->coder->next = LZMA_NEXT_CODER_INIT;
- }
-
- // Copy Uncompressed Size which is used to limit the output size.
- next->coder->uncompressed_size = filters[0].uncompressed_size;
-
- // Initialize the next decoder in the chain, if any.
- return lzma_next_filter_init(
- &next->coder->next, allocator, filters + 1);
-}
-
-
-#ifdef HAVE_ENCODER
-extern lzma_ret
-lzma_copy_encoder_init(lzma_next_coder *next, lzma_allocator *allocator,
- const lzma_filter_info *filters)
-{
- lzma_next_coder_init(copy_coder_init, next, allocator, filters,
- &copy_encode);
-}
-#endif
-
-
-#ifdef HAVE_DECODER
-extern lzma_ret
-lzma_copy_decoder_init(lzma_next_coder *next, lzma_allocator *allocator,
- const lzma_filter_info *filters)
-{
- lzma_next_coder_init(copy_coder_init, next, allocator, filters,
- &copy_decode);
-}
-#endif