Package init

libwebp.spec

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+Name:          libwebp
+Version:       1.0.0
+Release:       3
+URL:           https://webmproject.org/
+Summary:       Library and tools for the WebP graphics format
+License:       BSD
+Source0:       https://downloads.webmproject.org/releases/webp/%{name}-%{version}.tar.gz
+Source1:       libwebp_jni_example.java
+
+BuildRequires: libjpeg-devel libpng-devel giflib-devel libtiff-devel
+BuildRequires: java-devel jpackage-utils swig freeglut-devel
+BuildRequires: autoconf automake libtool
+
+%description
+This is an image format that does lossy compression of digital
+photographic images. WebP consists of a codec based on VP8, and a
+container based on RIFF. Webmasters, web developers and browser
+developers can use WebP to compress, archive and distribute digital
+images more efficiently.
+
+%package       tools
+Summary:       The WebP command line tools
+
+%description   tools
+WebP is an image format that does lossy compression of digital
+photographic images. WebP consists of a codec based on VP8, and a
+container based on RIFF. Webmasters, web developers and browser
+developers can use WebP to compress, archive and distribute digital
+images more efficiently.
+
+%package       devel
+Summary:       Development files for libwebp
+Requires:      %{name}%{?_isa} = %{version}-%{release}
+
+%description   devel
+Development files for libwebp, a library for the WebP format
+
+%package       java
+Summary:       Java bindings for libwebp, a library for the WebP format
+Requires:      %{name}%{?_isa} = %{version}-%{release}
+Requires:      java-headless jpackage-utils
+
+%description   java
+Java bindings for libwebp.
+
+%package_help
+
+%prep
+%autosetup -n %{name}-%{version} -p1
+%build
+autoreconf -vif
+%ifarch aarch64
+export CFLAGS="%{optflags} -frename-registers"
+%endif
+%configure  --enable-libwebpmux --enable-libwebpdemux \
+            --enable-libwebpdecoder --disable-neon
+%make_build
+
+cp %{SOURCE1} .
+cd swig
+rm -rf libwebp.jar libwebp_java_wrap.c
+install -d java/com/google/webp
+swig -ignoremissing -I../src -java \
+    -package com.google.webp  \
+    -outdir java/com/google/webp \
+    -o libwebp_java_wrap.c libwebp.swig
+
+gcc %{__global_ldflags} %{optflags} -shared \
+    -I/usr/lib/jvm/java/include \
+    -I/usr/lib/jvm/java/include/linux \
+    -I../src \
+    -L../src/.libs -lwebp libwebp_java_wrap.c \
+    -o libwebp_jni.so
+
+cd java
+javac com/google/webp/libwebp.java
+jar cvf ../libwebp.jar com/google/webp/*.class
+
+%install
+%make_install
+install -d %{buildroot}/%{_libdir}/%{name}-java
+cp swig/*.jar swig/*.so %{buildroot}/%{_libdir}/%{name}-java/
+%delete_la
+%ldconfig_scriptlets
+
+%files tools
+%defattr(-,root,root)
+%{_bindir}/*
+
+%files -n %{name}
+%defattr(-,root,root)
+%doc README AUTHORS
+%license COPYING
+%{_libdir}/*.so.*
+
+%files devel
+%defattr(-,root,root)
+%{_libdir}/%{name}*.so
+%{_includedir}/*
+%{_libdir}/*.a
+%{_libdir}/pkgconfig/*
+
+%files java
+%defattr(-,root,root)
+%doc *.java
+%{_libdir}/%{name}-java/
+
+%files help
+%defattr(-,root,root)
+%doc NEWS PATENTS
+%{_mandir}/man*/*
+
+%changelog
+* Wed Sep 11 2019 openEuler Buildteam <buildteam@openeuler.org> - 1.0.0-3
+- Package init
+

libwebp_jni_example.java

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+import com.google.webp.libwebp;
+
+import java.lang.reflect.Method;
+
+public class libwebp_jni_example {
+  static {
+    try {
+      System.load("/usr/lib64/libwebp-java/libwebp_jni.so");
+    } catch (UnsatisfiedLinkError e) {
+      System.load("/usr/lib/libwebp-java/libwebp_jni.so");
+    }
+  }
+
+  /**
+   * usage: java -cp libwebp.jar:. libwebp_jni_example
+   */
+  public static void main(String argv[]) {
+    final int version = libwebp.WebPGetDecoderVersion();
+    System.out.println("libwebp version: " + Integer.toHexString(version));
+
+    System.out.println("libwebp methods:");
+    final Method[] libwebpMethods = libwebp.class.getDeclaredMethods();
+    for (int i = 0; i < libwebpMethods.length; i++) {
+      System.out.println(libwebpMethods[i]);
+    }
+  }
+}