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* Add presets for LZ4 1.9.3 (pull #1094)
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| name: lz4 | ||
| on: | ||
| push: | ||
| paths: | ||
| - lz4/** | ||
| pull_request: | ||
| paths: | ||
| - lz4/** | ||
| workflow_dispatch: | ||
| env: | ||
| CI_DEPLOY_MODULE: ${{ github.workflow }} | ||
| CI_DEPLOY_PLATFORM: ${{ github.job }} | ||
| CI_DEPLOY_SETTINGS: ${{ secrets.CI_DEPLOY_SETTINGS }} | ||
| CI_DEPLOY_USERNAME: ${{ secrets.CI_DEPLOY_USERNAME }} | ||
| CI_DEPLOY_PASSWORD: ${{ secrets.CI_DEPLOY_PASSWORD }} | ||
| STAGING_REPOSITORY: ${{ secrets.STAGING_REPOSITORY }} | ||
| jobs: | ||
| linux-x86: | ||
| runs-on: ubuntu-18.04 | ||
| container: centos:7 | ||
| steps: | ||
| - uses: bytedeco/javacpp-presets/.github/actions/deploy-centos@actions | ||
| linux-x86_64: | ||
| runs-on: ubuntu-18.04 | ||
| container: centos:7 | ||
| steps: | ||
| - uses: bytedeco/javacpp-presets/.github/actions/deploy-centos@actions | ||
| macosx-x86_64: | ||
| runs-on: macos-10.15 | ||
| steps: | ||
| - uses: bytedeco/javacpp-presets/.github/actions/deploy-macosx@actions | ||
| windows-x86: | ||
| runs-on: windows-2019 | ||
| steps: | ||
| - uses: bytedeco/javacpp-presets/.github/actions/deploy-windows@actions | ||
| windows-x86_64: | ||
| runs-on: windows-2019 | ||
| steps: | ||
| - uses: bytedeco/javacpp-presets/.github/actions/deploy-windows@actions | ||
| redeploy: | ||
| needs: [linux-x86, linux-x86_64, macosx-x86_64, windows-x86, windows-x86_64] | ||
| runs-on: ubuntu-18.04 | ||
| steps: | ||
| - uses: bytedeco/javacpp-presets/.github/actions/redeploy@actions |
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| LZ4 Library | ||
| Copyright (c) 2011-2020, Yann Collet | ||
| All rights reserved. | ||
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| Redistribution and use in source and binary forms, with or without modification, | ||
| are permitted provided that the following conditions are met: | ||
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| * Redistributions of source code must retain the above copyright notice, this | ||
| list of conditions and the following disclaimer. | ||
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| * Redistributions in binary form must reproduce the above copyright notice, this | ||
| list of conditions and the following disclaimer in the documentation and/or | ||
| other materials provided with the distribution. | ||
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| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND | ||
| ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | ||
| WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
| DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR | ||
| ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | ||
| (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
| LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON | ||
| ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
| (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
| SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| JavaCPP Presets for LZ4 | ||
| ======================= | ||
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| [](https://gitter.im/bytedeco/javacpp) [](https://maven-badges.herokuapp.com/maven-central/org.bytedeco/lz4) [](http://bytedeco.org/builds/) | ||
| <sup>Build status for all platforms:</sup> [](https://github.com/bytedeco/javacpp-presets/actions?query=workflow%3Alz4) <sup>Commercial support:</sup> [](https://xscode.com/bytedeco/javacpp-presets) | ||
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| Introduction | ||
| ------------ | ||
| This directory contains the JavaCPP Presets module for: | ||
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| * LZ4 1.9.3 https://github.com/lz4/lz4/ | ||
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| Please refer to the parent README.md file for more detailed information about the JavaCPP Presets. | ||
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| Documentation | ||
| ------------- | ||
| Java API documentation is available here: | ||
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| * http://bytedeco.org/javacpp-presets/lz4/apidocs/ | ||
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| Sample Usage | ||
| ------------ | ||
| Here is a simple example of LZ4 frame compression. | ||
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| We can use [Maven 3](http://maven.apache.org/) to download and install automatically all the class files as well as the native binaries. To run this sample code, after creating the `pom.xml` and `LZ4FrameCompressionExample.java` source files below, simply execute on the command line: | ||
| ```bash | ||
| $ mvn compile exec:java | ||
| ``` | ||
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| ### The `pom.xml` build file | ||
| ```xml | ||
| <project> | ||
| <modelVersion>4.0.0</modelVersion> | ||
| <groupId>org.bytedeco.lz4</groupId> | ||
| <artifactId>lz4-frame-compression-example</artifactId> | ||
| <version>1.5.7-SNAPSHOT</version> | ||
| <properties> | ||
| <exec.mainClass>LZ4FrameCompressionExample</exec.mainClass> | ||
| <maven.compiler.source>1.7</maven.compiler.source> | ||
| <maven.compiler.target>1.7</maven.compiler.target> | ||
| </properties> | ||
| <dependencies> | ||
| <dependency> | ||
| <groupId>org.bytedeco</groupId> | ||
| <artifactId>lz4-platform</artifactId> | ||
| <version>1.9.3-1.5.7-SNAPSHOT</version> | ||
| </dependency> | ||
| </dependencies> | ||
| <build> | ||
| <sourceDirectory>.</sourceDirectory> | ||
| </build> | ||
| </project> | ||
| ``` | ||
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| ### The `LZ4FrameCompressionExample.java` source file | ||
| ```java | ||
| import java.nio.ByteBuffer; | ||
| import org.bytedeco.javacpp.*; | ||
| import org.bytedeco.lz4.*; | ||
| import org.bytedeco.lz4.global.lz4; | ||
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| public final class LZ4FrameCompressionExample { | ||
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| private static final int NUM_VALUES = 10 * 1024 * 1024; // 10MB | ||
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| public static void main(String[] args) throws LZ4Exception { | ||
| // Print LZ4 version | ||
| System.out.println("LZ4 Version: " + lz4.LZ4_VERSION_STRING.getString()); | ||
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| // Generate some data | ||
| final ByteBuffer data = ByteBuffer.allocateDirect(NUM_VALUES); | ||
| for (int i = 0; i < NUM_VALUES; i++) { | ||
| data.put((byte) i); | ||
| } | ||
| data.position(0); | ||
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| // Compress | ||
| final ByteBuffer compressed = compress(data); | ||
| System.out.println("Uncompressed size: " + data.limit()); | ||
| System.out.println("Compressed size: " + compressed.limit()); | ||
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| // Decompress | ||
| final ByteBuffer decompressed = decompress(compressed, data.limit()); | ||
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| // Verify that decompressed == data | ||
| for (int i = 0; i < NUM_VALUES; i++) { | ||
| if (data.get(i) != decompressed.get(i)) { | ||
| throw new IllegalStateException("Input and output differ."); | ||
| } | ||
| } | ||
| System.out.println("Verified that input data == output data"); | ||
| } | ||
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| private static ByteBuffer compress(ByteBuffer data) { | ||
| // Output buffer | ||
| final int maxCompressedSize = (int) lz4.LZ4F_compressFrameBound(data.limit(), null); | ||
| final ByteBuffer compressed = ByteBuffer.allocateDirect(maxCompressedSize); | ||
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| final Pointer dataPointer = new Pointer(data); | ||
| final Pointer dstPointer = new Pointer(compressed); | ||
| final long compressedSize = lz4.LZ4F_compressFrame(dstPointer, compressed.limit(), dataPointer, data.limit(), | ||
| null); | ||
| compressed.limit((int) compressedSize); | ||
| return compressed; | ||
| } | ||
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| private static ByteBuffer decompress(ByteBuffer compressed, int uncompressedSize) throws LZ4Exception { | ||
| final LZ4FDecompressionContext dctx = new LZ4FDecompressionContext(); | ||
| final long ctxError = lz4.LZ4F_createDecompressionContext(dctx, lz4.LZ4F_VERSION); | ||
| checkForError(ctxError); | ||
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| // Output buffer | ||
| final ByteBuffer decompressed = ByteBuffer.allocateDirect(uncompressedSize); | ||
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| final SizeTPointer dstSize = new SizeTPointer(1); | ||
| final SizeTPointer srcSize = new SizeTPointer(1); | ||
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| try { | ||
| long ret; | ||
| do { | ||
| dstSize.put(decompressed.remaining()); | ||
| srcSize.put(compressed.limit()); | ||
| final Pointer dstPointer = new Pointer(decompressed); | ||
| final Pointer compressedPointer = new Pointer(compressed); | ||
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| ret = lz4.LZ4F_decompress(dctx, dstPointer, dstSize, compressedPointer, srcSize, null); | ||
| checkForError(ret); | ||
| decompressed.position(decompressed.position() + (int) dstSize.get()); | ||
| compressed.position(compressed.position() + (int) srcSize.get()); | ||
| } while (ret != 0); | ||
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| } finally { | ||
| lz4.LZ4F_freeDecompressionContext(dctx); | ||
| } | ||
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| decompressed.position(0); | ||
| return decompressed; | ||
| } | ||
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| private static void checkForError(long errorCode) throws LZ4Exception { | ||
| if (lz4.LZ4F_isError(errorCode) != 0) { | ||
| throw new LZ4Exception(lz4.LZ4F_getErrorName(errorCode).getString()); | ||
| } | ||
| } | ||
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| private static final class LZ4Exception extends Exception { | ||
| public LZ4Exception(final String message) { | ||
| super(message); | ||
| } | ||
| } | ||
| } | ||
| ``` |
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| #!/bin/bash | ||
| # This file is meant to be included by the parent cppbuild.sh script | ||
| if [[ -z "$PLATFORM" ]]; then | ||
| pushd .. | ||
| bash cppbuild.sh "$@" lz4 | ||
| popd | ||
| exit | ||
| fi | ||
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| LZ4_VERSION=1.9.3 | ||
| download https://github.com/lz4/lz4/archive/refs/tags/v$LZ4_VERSION.tar.gz lz4-$LZ4_VERSION.tar.gz | ||
| mkdir -p $PLATFORM | ||
| cd $PLATFORM | ||
| INSTALL_PATH=`pwd` | ||
| tar -xzvf ../lz4-$LZ4_VERSION.tar.gz | ||
| cd lz4-$LZ4_VERSION | ||
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| # TODO add other platforms | ||
| case $PLATFORM in | ||
| linux-x86) | ||
| CC="gcc -m32 -fPIC" make -j $MAKEJ | ||
| PREFIX=$INSTALL_PATH make install | ||
| ;; | ||
| linux-x86_64) | ||
| CC="gcc -m64 -fPIC" make -j $MAKEJ | ||
| PREFIX=$INSTALL_PATH make install | ||
| ;; | ||
| macosx-x86_64) | ||
| make -j $MAKEJ | ||
| PREFIX=$INSTALL_PATH make install | ||
| ;; | ||
| windows-x86) | ||
| cd build/cmake | ||
| export CC="cl.exe" | ||
| export CXX="cl.exe" | ||
| "$CMAKE" -G "Ninja" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$INSTALL_PATH -DBUILD_SHARED_LIBS=OFF . | ||
| ninja -j $MAKEJ | ||
| ninja install | ||
| cd ../.. | ||
| ;; | ||
| windows-x86_64) | ||
| cd build/cmake | ||
| export CC="cl.exe" | ||
| export CXX="cl.exe" | ||
| "$CMAKE" -G "Ninja" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$INSTALL_PATH -DBUILD_SHARED_LIBS=OFF . | ||
| ninja -j $MAKEJ | ||
| ninja install | ||
| cd ../.. | ||
| ;; | ||
| *) | ||
| echo "Error: Platform \"$PLATFORM\" is not supported" | ||
| ;; | ||
| esac | ||
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| cd ../.. |
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