[packages/c-blosc] - new; sse2 patch to use SSE2 instructions only in parts covered by CPU detection on generic x86
qboosh
qboosh at pld-linux.org
Thu Apr 27 19:08:24 CEST 2023
commit ff36605923cd51cc8acd43978f823a4d0f8a74c3
Author: Jakub Bogusz <qboosh at pld-linux.org>
Date: Thu Apr 27 19:10:56 2023 +0200
- new; sse2 patch to use SSE2 instructions only in parts covered by CPU detection on generic x86
c-blosc-sse2.patch | 20 +++++++++
c-blosc.spec | 130 +++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 150 insertions(+)
---
diff --git a/c-blosc.spec b/c-blosc.spec
new file mode 100644
index 0000000..609dbb9
--- /dev/null
+++ b/c-blosc.spec
@@ -0,0 +1,130 @@
+#
+# Conditional build:
+%bcond_without static_libs # static libraries
+%bcond_with sse2 # SSE2 instructions without detection (detected SSE2/AVX parts are always enabled)
+
+%ifarch pentium4 %{x8664} x32
+%define with_sse2 1
+%endif
+
+Summary: Blosc: A blocking, shuffling and lossless compression library
+Summary(pl.UTF-8): Blosc: biblioteka blokowej, przetasowującej i bezstratnej kompresji
+Name: c-blosc
+Version: 1.21.2
+Release: 1
+License: BSD
+Group: Libraries
+#Source0Download: https://github.com/Blosc/c-blosc/releases
+Source0: https://github.com/Blosc/c-blosc/archive/v%{version}/%{name}-%{version}.tar.gz
+# Source0-md5: 43659f2923490559d5304becff9f4b8b
+Patch0: %{name}-sse2.patch
+URL: https://www.blosc.org/
+BuildRequires: cmake >= 2.8.12
+BuildRequires: lz4-devel
+BuildRequires: snappy-devel
+BuildRequires: zlib-devel
+BuildRequires: zstd-devel
+BuildRoot: %{tmpdir}/%{name}-%{version}-root-%(id -u -n)
+
+%description
+Blosc is a high performance compressor optimized for binary data. It
+has been designed to transmit data to the processor cache faster than
+the traditional, non-compressed, direct memory fetch approach via a
+memcpy() OS call. Blosc is the first compressor (that the author is
+aware of) that is meant not only to reduce the size of large datasets
+on-disk or in-memory, but also to accelerate memory-bound
+computations. It uses the blocking technique so as to reduce activity
+in the memory bus as much as possible. In short, this technique works
+by dividing datasets in blocks that are small enough to fit in caches
+of modern processors and perform compression/decompression there. It
+also leverages, if available, SIMD instructions (SSE2, AVX2) and
+multi-threading capabilities of CPUs, in order to accelerate the
+compression/decompression process to a maximum.
+
+%description -l pl.UTF-8
+Blosc to wysoko wydajny kompresor zoptymalizowany dla danych
+binarnych. Został zaprojektowany do przesyłania danych do pamięci
+podręcznej procesora szybciej, niż tradycyjne pobieranie danych
+nieskompresowanych poprzez wywołanie memcpy(). Blosc wg wiedzy autora
+jest pierwszym kompresorem pisanym z myślą nie tylko o zmniejszeniu
+rozmiaru danych na dysku lub w pamięci, ale także przyspieszeniu
+obliczeń w pamięci. Wykorzystuje technikę blokową aby możliwie
+najbardziej zmniejszyć wykorzystanie szyny pamięciowej. W skrócie
+technika ta działa na zasadzie podziału zbiorów danych na bloki
+wystarczająco małe, aby mieścić się w pamięci podręcznej współczesnych
+procesorów, i dokonywaniu w niej kompresji/dekompresji. Wykorzystuje
+także (jeśli są dostępne) intrukcje SIMD oraz możliwości wielowątkowe
+rpcesorów, aby maksymalnie przyspieszyć proces kompresji/dekompresji.
+
+%package devel
+Summary: Header files for blosc library
+Summary(pl.UTF-8): Pliki nagłówkowe biblioteki blosc
+Group: Development/Libraries
+Requires: %{name} = %{version}-%{release}
+
+%description devel
+Header files for blosc library.
+
+%description devel -l pl.UTF-8
+Pliki nagłówkowe biblioteki blosc.
+
+%package static
+Summary: Static blosc library
+Summary(pl.UTF-8): Statyczna biblioteka blosc
+Group: Development/Libraries
+Requires: %{name}-devel = %{version}-%{release}
+
+%description static
+Static blosc library.
+
+%description static -l pl.UTF-8
+Statyczna biblioteka blosc.
+
+%prep
+%setup -q
+%patch0 -p1
+
+%build
+install -d build
+cd build
+%cmake .. \
+ %{!?with_static_libs:-DBUILD_STATIC=OFF} \
+ -DCMAKE_INSTALL_INCLUDEDIR=include \
+ -DCMAKE_INSTALL_LIBDIR=%{_lib} \
+ -DPREFER_EXTERNAL_LZ4=ON \
+ -DPREFER_EXTERNAL_ZLIB=ON \
+ -DPREFER_EXTERNAL_ZSTD=ON \
+ %{?with_sse2:-DREQUIRE_SSE2=ON}
+
+%{__make}
+
+%install
+rm -rf $RPM_BUILD_ROOT
+
+%{__make} -C build install \
+ DESTDIR=$RPM_BUILD_ROOT
+
+%clean
+rm -rf $RPM_BUILD_ROOT
+
+%post -p /sbin/ldconfig
+%postun -p /sbin/ldconfig
+
+%files
+%defattr(644,root,root,755)
+%doc ANNOUNCE.rst FAQ.md README.md README_CHUNK_FORMAT.rst README_THREADED.rst RELEASE_NOTES.rst THANKS.rst
+%attr(755,root,root) %{_libdir}/libblosc.so.*.*.*
+%attr(755,root,root) %ghost %{_libdir}/libblosc.so.1
+
+%files devel
+%defattr(644,root,root,755)
+%attr(755,root,root) %{_libdir}/libblosc.so
+%{_includedir}/blosc.h
+%{_includedir}/blosc-export.h
+%{_pkgconfigdir}/blosc.pc
+
+%if %{with static_libs}
+%files static
+%defattr(644,root,root,755)
+%{_libdir}/libblosc.a
+%endif
diff --git a/c-blosc-sse2.patch b/c-blosc-sse2.patch
new file mode 100644
index 0000000..1ba4c9a
--- /dev/null
+++ b/c-blosc-sse2.patch
@@ -0,0 +1,20 @@
+--- c-blosc-1.21.2/CMakeLists.txt.orig 2022-12-07 11:34:44.000000000 +0100
++++ c-blosc-1.21.2/CMakeLists.txt 2023-04-27 18:49:32.936930790 +0200
+@@ -128,6 +128,8 @@ option(PREFER_EXTERNAL_ZLIB
+ "Find and use external Zlib library instead of included sources." OFF)
+ option(PREFER_EXTERNAL_ZSTD
+ "Find and use external Zstd library instead of included sources." OFF)
++option(REQUIRE_SSE2
++ "Use SSE2 instructions without runtime detection." OFF)
+
+ set(CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")
+ include(GNUInstallDirs)
+@@ -276,7 +278,7 @@ endif()
+
+ # Set the "-msse2" build flag if supported.
+ if(CMAKE_C_COMPILER_ID STREQUAL GNU OR CMAKE_C_COMPILER_ID STREQUAL Clang OR CMAKE_C_COMPILER_ID STREQUAL Intel)
+- if(COMPILER_SUPPORT_SSE2)
++ if(COMPILER_SUPPORT_SSE2 AND REQUIRE_SSE2)
+ add_compile_options(-msse2)
+ endif()
+ endif()
================================================================
---- gitweb:
http://git.pld-linux.org/gitweb.cgi/packages/c-blosc.git/commitdiff/ff36605923cd51cc8acd43978f823a4d0f8a74c3
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