blob: c2cd0a51eb3ae843aa552ee5b301ff4e78b6ab10 [file] [log] [blame]
///////////////////////////////////////////////////////////////////////////////
//
/// \file raw_encoder.c
/// \brief Raw encoder initialization API
//
// 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_encoder.h"
#include "copy_coder.h"
#include "simple_coder.h"
#include "subblock_encoder.h"
#include "delta_coder.h"
#include "lzma_encoder.h"
static lzma_init_function
get_function(lzma_vli id)
{
switch (id) {
#ifdef HAVE_FILTER_COPY
case LZMA_FILTER_COPY:
return &lzma_copy_encoder_init;
#endif
#ifdef HAVE_FILTER_SUBBLOCK
case LZMA_FILTER_SUBBLOCK:
return &lzma_subblock_encoder_init;
#endif
#ifdef HAVE_FILTER_X86
case LZMA_FILTER_X86:
return &lzma_simple_x86_encoder_init;
#endif
#ifdef HAVE_FILTER_POWERPC
case LZMA_FILTER_POWERPC:
return &lzma_simple_powerpc_encoder_init;
#endif
#ifdef HAVE_FILTER_IA64
case LZMA_FILTER_IA64:
return &lzma_simple_ia64_encoder_init;
#endif
#ifdef HAVE_FILTER_ARM
case LZMA_FILTER_ARM:
return &lzma_simple_arm_encoder_init;
#endif
#ifdef HAVE_FILTER_ARMTHUMB
case LZMA_FILTER_ARMTHUMB:
return &lzma_simple_armthumb_encoder_init;
#endif
#ifdef HAVE_FILTER_SPARC
case LZMA_FILTER_SPARC:
return &lzma_simple_sparc_encoder_init;
#endif
#ifdef HAVE_FILTER_DELTA
case LZMA_FILTER_DELTA:
return &lzma_delta_encoder_init;
#endif
#ifdef HAVE_FILTER_LZMA
case LZMA_FILTER_LZMA:
return &lzma_lzma_encoder_init;
#endif
}
return NULL;
}
extern lzma_ret
lzma_raw_encoder_init(lzma_next_coder *next, lzma_allocator *allocator,
const lzma_options_filter *options,
lzma_vli uncompressed_size, bool allow_implicit)
{
// lzma_raw_coder_init() accesses get_function() via function pointer,
// because this way linker doesn't statically link both encoder and
// decoder functions if user needs only encoder or decoder.
const lzma_ret ret = lzma_raw_coder_init(next, allocator,
options, uncompressed_size, &get_function,
allow_implicit, true);
if (ret != LZMA_OK)
lzma_next_coder_end(next, allocator);
return ret;
}
extern LZMA_API lzma_ret
lzma_raw_encoder(lzma_stream *strm, const lzma_options_filter *options,
lzma_vli uncompressed_size, lzma_bool allow_implicit)
{
return_if_error(lzma_strm_init(strm));
strm->internal->supported_actions[LZMA_RUN] = true;
strm->internal->supported_actions[LZMA_SYNC_FLUSH] = true;
strm->internal->supported_actions[LZMA_FINISH] = true;
const lzma_ret ret = lzma_raw_coder_init(&strm->internal->next,
strm->allocator, options, uncompressed_size,
&get_function, allow_implicit, true);
if (ret != LZMA_OK)
lzma_end(strm);
return ret;
}