Imported to git.

1 files changed, 124 insertions, 0 deletions

diff --git a/src/liblzma/common/raw_encoder.c b/src/liblzma/common/raw_encoder.c
new file mode 100644
index 00000000..c2cd0a51
--- /dev/null
+++ b/src/liblzma/common/raw_encoder.c
@@ -0,0 +1,124 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \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;
+}