Akshay Kumar Dubey
b410749d30
Integrate build system support for the Zstandard (zstd) library and implement the corresponding C++ decompression stream classes, enabling future use of zstd-compressed streams in ZIP packages. Build System (Part 2a): - Add `--with-system-zstd=[yes|no|auto]` configure option. - Implement system library checks (`zstd.h`, `libzstd`) in configure.ac. - Define rules (`external/zstd/*`) for downloading and building the internal zstd static library (decompression components only). - Set up necessary CFLAGS/LIBS via configure.ac and config_host.mk.in. - Configure linking via RepositoryExternal.mk (`gb_LinkTarget__use_zstd`). - Update auxiliary files (download.lst, distro-configs, etc.). C++ Implementation (Part 2b): - Implement `InflateZstd` (in `include/package`) and `InflaterBytesZstd` (in `package/inc`) inheriting from `Inflater`/`InflaterBytes`. - Use the zstd streaming API (`ZSTD_decompressStream`) following the existing single-call pattern established by the zlib implementation. - Manage context (`ZSTD_DCtx`) and input buffer (`ZSTD_inBuffer`) state. - Handle errors, stream completion (`ret == 0`), and input truncation. - Add new classes to `package/Library_package2.mk` build. This completes the infrastructure for zstd decompression support. The next step (Part 2c) involves adding logic to select the appropriate Inflater based on the ZIP entry's compression method ID. Change-Id: Ia673f3f19b6a751ba5225394fcf8c3f145c4ae63 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/184243 Tested-by: Jenkins Reviewed-by: Caolán McNamara <caolan.mcnamara@collabora.com>
42 lines
1.4 KiB
Makefile
42 lines
1.4 KiB
Makefile
# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
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#
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# This file is part of the LibreOffice project.
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#
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#
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$(eval $(call gb_StaticLibrary_StaticLibrary,zstd))
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$(eval $(call gb_StaticLibrary_use_unpacked,zstd,zstd))
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$(eval $(call gb_StaticLibrary_set_warnings_disabled,zstd))
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$(eval $(call gb_StaticLibrary_set_include,zstd,\
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-I$(gb_UnpackedTarball_workdir)/zstd/lib \
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-I$(gb_UnpackedTarball_workdir)/zstd/lib/common \
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-I$(gb_UnpackedTarball_workdir)/zstd/lib/decompress \
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$$(INCLUDE) \
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))
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$(eval $(call gb_StaticLibrary_add_generated_cobjects,zstd,\
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UnpackedTarball/zstd/lib/common/entropy_common \
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UnpackedTarball/zstd/lib/common/error_private \
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UnpackedTarball/zstd/lib/common/fse_decompress \
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UnpackedTarball/zstd/lib/common/xxhash \
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UnpackedTarball/zstd/lib/common/zstd_common \
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UnpackedTarball/zstd/lib/decompress/huf_decompress \
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UnpackedTarball/zstd/lib/decompress/zstd_ddict \
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UnpackedTarball/zstd/lib/decompress/zstd_decompress \
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UnpackedTarball/zstd/lib/decompress/zstd_decompress_block \
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))
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$(eval $(call gb_StaticLibrary_add_cflags,zstd,-DZSTD_DISABLE_ASM))
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ifeq ($(ENABLE_DEBUG),TRUE)
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$(eval $(call gb_StaticLibrary_add_cflags,zstd,-DZSTD_DEBUG=1))
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endif
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# vim: set noet sw=4 ts=4:
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