mirror of
https://github.com/google/brotli.git
synced 2024-11-23 12:10:07 +00:00
parent
19d86fb9a6
commit
68f1b90ad0
6
.gitmodules
vendored
6
.gitmodules
vendored
@ -1,6 +0,0 @@
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[submodule "research/esaxx"]
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path = research/esaxx
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url = https://github.com/hillbig/esaxx
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[submodule "research/libdivsufsort"]
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path = research/libdivsufsort
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url = https://github.com/y-256/libdivsufsort.git
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@ -166,9 +166,9 @@ matrix:
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- os: osx
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osx_image: xcode12.2
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env: BUILD_SYSTEM=cmake C_COMPILER=gcc CXX_COMPILER=g++
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- os: osx
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osx_image: xcode12.2
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env: BUILD_SYSTEM=cmake C_COMPILER=gcc-4.9 CXX_COMPILER=g++-4.9
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#- os: osx
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# osx_image: xcode12.2
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# env: BUILD_SYSTEM=cmake C_COMPILER=gcc-4.9 CXX_COMPILER=g++-4.9
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- os: osx
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osx_image: xcode12.2
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env: BUILD_SYSTEM=cmake
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4
BUILD
4
BUILD
@ -1,6 +1,8 @@
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# Description:
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# Brotli is a generic-purpose lossless compression algorithm.
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load(":compiler_config_setting.bzl", "create_msvc_config")
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package(
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default_visibility = ["//visibility:public"],
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)
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@ -39,8 +41,6 @@ config_setting(
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visibility = ["//visibility:public"],
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)
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load(":compiler_config_setting.bzl", "create_msvc_config")
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create_msvc_config()
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STRICT_C_OPTIONS = select({
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@ -1238,7 +1238,7 @@ static size_t WriteMetadataHeader(
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return (storage_ix + 7u) >> 3;
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}
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static BROTLI_BOOL BrotliCompressBufferQuality10(
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static BROTLI_NOINLINE BROTLI_BOOL BrotliCompressBufferQuality10(
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int lgwin, size_t input_size, const uint8_t* input_buffer,
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size_t* encoded_size, uint8_t* encoded_buffer) {
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MemoryManager* m =
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@ -40,7 +40,7 @@ typedef struct BrotliEncoderParams {
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BROTLI_BOOL large_window;
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BrotliHasherParams hasher;
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BrotliDistanceParams dist;
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/* TODO(eustas): rename to BrotliShared... */
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/* TODO: rename to BrotliShared... */
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SharedEncoderDictionary dictionary;
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} BrotliEncoderParams;
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@ -247,9 +247,10 @@
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#define BROTLI_PUBLIC
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#endif
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#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && \
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!defined(__STDC_NO_VLA__) && !defined(__cplusplus) && \
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!defined(__PGI) && !defined(__PGIC__) && !defined(__TINYC__)
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#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && \
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!defined(__STDC_NO_VLA__) && !defined(__cplusplus) && \
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!defined(__PGI) && !defined(__PGIC__) && !defined(__TINYC__) && \
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!defined(__clang__)
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#define BROTLI_ARRAY_PARAM(name) (name)
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#else
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#define BROTLI_ARRAY_PARAM(name)
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@ -1,9 +1,9 @@
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load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
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package(default_visibility = ["//visibility:public"])
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licenses(["notice"]) # MIT
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load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
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go_library(
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name = "cbrotli",
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srcs = [
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@ -1,6 +1,8 @@
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# Description:
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# Java port of Brotli decoder.
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load(":build_defs.bzl", "brotli_java_test")
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package(default_visibility = ["//visibility:public"])
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licenses(["notice"]) # MIT
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@ -14,14 +16,15 @@ java_library(
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name = "dec",
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srcs = glob(
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["*.java"],
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exclude = ["*Test*.java"],
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exclude = [
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"Decoder.java",
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"*Test*.java",
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],
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),
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proguard_specs = ["proguard.pgcfg"],
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resource_jars = ["//:license"],
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)
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load(":build_defs.bzl", "brotli_java_test")
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brotli_java_test(
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name = "BitReaderTest",
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srcs = ["BitReaderTest.java"],
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61
java/org/brotli/dec/Decoder.java
Normal file
61
java/org/brotli/dec/Decoder.java
Normal file
@ -0,0 +1,61 @@
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package org.brotli.dec;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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public class Decoder {
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private static long decodeBytes(InputStream input, OutputStream output, byte[] buffer)
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throws IOException {
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long totalOut = 0;
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int readBytes;
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BrotliInputStream in = new BrotliInputStream(input);
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in.enableLargeWindow();
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try {
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while ((readBytes = in.read(buffer)) >= 0) {
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output.write(buffer, 0, readBytes);
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totalOut += readBytes;
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}
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} finally {
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in.close();
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}
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return totalOut;
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}
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public static void main(String... args) throws IOException {
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if (args.length != 2) {
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System.out.println("Usage: decoder <compressed_in> <decompressed_out>");
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return;
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}
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byte[] buffer = new byte[1024 * 1024];
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long start;
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long bytesDecoded;
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long end;
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InputStream in = null;
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OutputStream out = null;
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try {
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in = new FileInputStream(args[0]);
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out = new FileOutputStream(args[1]);
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start = System.nanoTime();
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bytesDecoded = decodeBytes(in, out, buffer);
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end = System.nanoTime();
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} finally {
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if (in != null) {
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in.close(); // Hopefully, does not throw exception.
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}
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if (out != null) {
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out.close();
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}
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}
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double timeDelta = (end - start) / 1000000000.0;
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if (timeDelta <= 0) {
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return;
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}
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double mbDecoded = bytesDecoded / (1024.0 * 1024.0);
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System.out.println(mbDecoded / timeDelta + " MiB/s");
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}
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}
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117
java/org/brotli/integration/Benchmark.java
Normal file
117
java/org/brotli/integration/Benchmark.java
Normal file
@ -0,0 +1,117 @@
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package org.brotli.integration;
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import org.brotli.dec.BrotliInputStream;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.util.ArrayList;
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/**
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* Measures decompression speed on the given corpus.
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*/
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public class Benchmark {
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private static byte[] readFile(String fileName) throws IOException {
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int bufferLength = 65536;
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byte[] buffer = new byte[bufferLength];
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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FileInputStream fin = new FileInputStream(fileName);
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try {
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int bytesRead;
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while ((bytesRead = fin.read(buffer)) >= 0) {
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baos.write(buffer, 0, bytesRead);
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}
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} finally {
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fin.close();
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}
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return baos.toByteArray();
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}
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private static long decodeBytes(InputStream input, OutputStream output, byte[] buffer)
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throws IOException {
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long totalOut = 0;
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int readBytes;
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BrotliInputStream in = new BrotliInputStream(input);
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try {
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while ((readBytes = in.read(buffer)) >= 0) {
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output.write(buffer, 0, readBytes);
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totalOut += readBytes;
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}
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} finally {
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in.close();
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}
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return totalOut;
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}
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public static void main(String... args) throws IOException {
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if (args.length == 0) {
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System.out.println("Usage: benchmark <corpus>");
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return;
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}
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File corpusDir = new File(args[0]);
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ArrayList<String> fileNames = new ArrayList<String>();
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File[] filesList = corpusDir.listFiles();
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if (filesList == null) {
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System.out.println("'" + args[0] + "' is not a directory");
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return;
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}
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for (File file : filesList) {
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if (!file.isFile()) {
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continue;
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}
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String fileName = file.getAbsolutePath();
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if (!fileName.endsWith(".brotli")) {
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continue;
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}
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fileNames.add(fileName);
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}
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int fileCount = fileNames.size();
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if (fileCount == 0) {
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System.out.println("No files found");
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return;
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}
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byte[][] files = new byte[fileCount][];
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for (int i = 0; i < fileCount; ++i) {
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files[i] = readFile(fileNames.get(i));
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}
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ByteArrayOutputStream baos = new ByteArrayOutputStream(65536);
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byte[] buffer = new byte[65536];
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int warmupRepeat = 10;
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long bytesDecoded = 0;
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for (int i = 0; i < warmupRepeat; ++i) {
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bytesDecoded = 0;
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for (int j = 0; j < fileCount; ++j) {
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baos.reset();
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bytesDecoded += decodeBytes(new ByteArrayInputStream(files[j]), baos, buffer);
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}
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}
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int repeat = 100;
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long bestTime = Long.MAX_VALUE;
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for (int i = 0; i < repeat; ++i) {
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long start = System.nanoTime();
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for (int j = 0; j < fileCount; ++j) {
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baos.reset();
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decodeBytes(new ByteArrayInputStream(files[j]), baos, buffer);
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}
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long end = System.nanoTime();
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long timeDelta = end - start;
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||||
if (timeDelta < bestTime) {
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bestTime = timeDelta;
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}
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}
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||||
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||||
double timeDeltaSeconds = bestTime / 1000000000.0;
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||||
if (timeDeltaSeconds <= 0) {
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||||
return;
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||||
}
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double mbDecoded = bytesDecoded / (1024.0 * 1024.0);
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||||
System.out.println(mbDecoded / timeDeltaSeconds);
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||||
}
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}
|
Binary file not shown.
83
java/org/brotli/wrapper/android/JniHelper.java
Normal file
83
java/org/brotli/wrapper/android/JniHelper.java
Normal file
@ -0,0 +1,83 @@
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||||
package org.brotli.wrapper.android;
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||||
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||||
import android.content.Context;
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||||
import android.os.Build;
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||||
import java.io.File;
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||||
import java.io.FileOutputStream;
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||||
import java.io.IOException;
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||||
import java.io.InputStream;
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||||
import java.io.OutputStream;
|
||||
import java.util.zip.ZipFile;
|
||||
|
||||
public class JniHelper {
|
||||
|
||||
// Should be set on application start.
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||||
static Context context = null;
|
||||
|
||||
private static final String LIB_NAME = "native";
|
||||
|
||||
private static void tryInitialize() {
|
||||
try {
|
||||
System.loadLibrary(LIB_NAME);
|
||||
} catch (UnsatisfiedLinkError e) {
|
||||
if (context == null) {
|
||||
throw e;
|
||||
}
|
||||
int sdk = Build.VERSION.SDK_INT;
|
||||
boolean tryFallback =
|
||||
(sdk >= Build.VERSION_CODES.JELLY_BEAN) && (sdk <= Build.VERSION_CODES.KITKAT);
|
||||
if (!tryFallback) {
|
||||
throw e;
|
||||
}
|
||||
try {
|
||||
String libraryFileName = "lib" + LIB_NAME + ".so";
|
||||
String libraryFullPath = context.getFilesDir() + File.separator + libraryFileName;
|
||||
File file = new File(libraryFullPath);
|
||||
if (!file.exists()) {
|
||||
String apkPath = context.getApplicationInfo().sourceDir;
|
||||
String pathInApk = "lib/" + Build.CPU_ABI + "/lib" + LIB_NAME + ".so";
|
||||
unzip(apkPath, pathInApk, libraryFullPath);
|
||||
}
|
||||
System.load(libraryFullPath);
|
||||
} catch (UnsatisfiedLinkError unsatisfiedLinkError) {
|
||||
throw unsatisfiedLinkError;
|
||||
} catch (Throwable t) {
|
||||
UnsatisfiedLinkError unsatisfiedLinkError = new UnsatisfiedLinkError(
|
||||
"Exception while extracting native library: " + t.getMessage());
|
||||
unsatisfiedLinkError.initCause(t);
|
||||
throw unsatisfiedLinkError;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private static final Object mutex = new Object();
|
||||
private static volatile boolean alreadyInitialized;
|
||||
|
||||
public static void ensureInitialized() {
|
||||
synchronized (mutex) {
|
||||
if (!alreadyInitialized) {
|
||||
// If failed, do not retry.
|
||||
alreadyInitialized = true;
|
||||
tryInitialize();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private static void unzip(String zipFileName, String entryName, String outputFileName)
|
||||
throws IOException {
|
||||
ZipFile zipFile = new ZipFile(zipFileName);
|
||||
try {
|
||||
InputStream input = zipFile.getInputStream(zipFile.getEntry(entryName));
|
||||
OutputStream output = new FileOutputStream(outputFileName);
|
||||
byte[] data = new byte[16384];
|
||||
int len;
|
||||
while ((len = input.read(data)) != -1) {
|
||||
output.write(data, 0, len);
|
||||
}
|
||||
output.close();
|
||||
input.close();
|
||||
} finally {
|
||||
zipFile.close();
|
||||
}
|
||||
}
|
||||
}
|
22
java/org/brotli/wrapper/android/UseJni.java
Normal file
22
java/org/brotli/wrapper/android/UseJni.java
Normal file
@ -0,0 +1,22 @@
|
||||
package org.brotli.wrapper.android;
|
||||
|
||||
import org.brotli.wrapper.dec.Decoder;
|
||||
import org.brotli.wrapper.enc.Encoder;
|
||||
import java.io.IOException;
|
||||
|
||||
public final class UseJni {
|
||||
|
||||
static {
|
||||
JniHelper.ensureInitialized();
|
||||
}
|
||||
|
||||
public static int deepThought() {
|
||||
String theUltimateQuestion = "What do you get when you multiply six by 9";
|
||||
try {
|
||||
return Decoder.decompress(
|
||||
Encoder.compress(new byte[theUltimateQuestion.length()])).length;
|
||||
} catch (IOException ex) {
|
||||
throw new RuntimeException("Please wait 7.5 million years");
|
||||
}
|
||||
}
|
||||
}
|
23
java/org/brotli/wrapper/android/UseJniTest.java
Normal file
23
java/org/brotli/wrapper/android/UseJniTest.java
Normal file
@ -0,0 +1,23 @@
|
||||
package org.brotli.wrapper.android;
|
||||
|
||||
import static junit.framework.Assert.assertEquals;
|
||||
|
||||
import androidx.test.core.app.ApplicationProvider;
|
||||
import com.google.thirdparty.robolectric.GoogleRobolectricTestRunner;
|
||||
import org.junit.Before;
|
||||
import org.junit.Test;
|
||||
import org.junit.runner.RunWith;
|
||||
|
||||
@RunWith(GoogleRobolectricTestRunner.class)
|
||||
public final class UseJniTest {
|
||||
|
||||
@Before
|
||||
public void setup() {
|
||||
JniHelper.context = ApplicationProvider.getApplicationContext();
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testAnswerToTheUltimateQuestionOfLifeTheUniverseAndEverything() {
|
||||
assertEquals(42, UseJni.deepThought());
|
||||
}
|
||||
}
|
@ -4,7 +4,12 @@ licenses(["notice"]) # MIT
|
||||
|
||||
filegroup(
|
||||
name = "jni_src",
|
||||
srcs = ["decoder_jni.cc"],
|
||||
srcs = [
|
||||
"decoder_jni.cc",
|
||||
"decoder_jni.h",
|
||||
# TODO: investigate, why this prevents JNI library loading.
|
||||
#"decoder_jni_onload.cc",
|
||||
],
|
||||
)
|
||||
|
||||
java_library(
|
||||
|
@ -4,7 +4,7 @@
|
||||
See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
|
||||
*/
|
||||
|
||||
#include <jni.h>
|
||||
#include "./decoder_jni.h"
|
||||
|
||||
#include <new>
|
||||
|
||||
|
75
java/org/brotli/wrapper/dec/decoder_jni.h
Normal file
75
java/org/brotli/wrapper/dec/decoder_jni.h
Normal file
@ -0,0 +1,75 @@
|
||||
/* Copyright 2017 Google Inc. All Rights Reserved.
|
||||
|
||||
Distributed under MIT license.
|
||||
See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
|
||||
*/
|
||||
|
||||
#ifndef BROTLI_WRAPPER_DEC_DECODER_JNI_H_
|
||||
#define BROTLI_WRAPPER_DEC_DECODER_JNI_H_
|
||||
|
||||
#include <jni.h>
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Creates a new Decoder.
|
||||
*
|
||||
* Cookie to address created decoder is stored in out_cookie. In case of failure
|
||||
* cookie is 0.
|
||||
*
|
||||
* @param ctx {out_cookie, in_directBufferSize} tuple
|
||||
* @returns direct ByteBuffer if directBufferSize is not 0; otherwise null
|
||||
*/
|
||||
JNIEXPORT jobject JNICALL
|
||||
Java_org_brotli_wrapper_dec_DecoderJNI_nativeCreate(
|
||||
JNIEnv* env, jobject /*jobj*/, jlongArray ctx);
|
||||
|
||||
/**
|
||||
* Push data to decoder.
|
||||
*
|
||||
* status codes:
|
||||
* - 0 error happened
|
||||
* - 1 stream is finished, no more input / output expected
|
||||
* - 2 needs more input to process further
|
||||
* - 3 needs more output to process further
|
||||
* - 4 ok, can proceed further without additional input
|
||||
*
|
||||
* @param ctx {in_cookie, out_status} tuple
|
||||
* @param input_length number of bytes provided in input or direct input;
|
||||
* 0 to process further previous input
|
||||
*/
|
||||
JNIEXPORT void JNICALL
|
||||
Java_org_brotli_wrapper_dec_DecoderJNI_nativePush(
|
||||
JNIEnv* env, jobject /*jobj*/, jlongArray ctx, jint input_length);
|
||||
|
||||
/**
|
||||
* Pull decompressed data from decoder.
|
||||
*
|
||||
* @param ctx {in_cookie, out_status} tuple
|
||||
* @returns direct ByteBuffer; all the produced data MUST be consumed before
|
||||
* any further invocation; null in case of error
|
||||
*/
|
||||
JNIEXPORT jobject JNICALL
|
||||
Java_org_brotli_wrapper_dec_DecoderJNI_nativePull(
|
||||
JNIEnv* env, jobject /*jobj*/, jlongArray ctx);
|
||||
|
||||
/**
|
||||
* Releases all used resources.
|
||||
*
|
||||
* @param ctx {in_cookie} tuple
|
||||
*/
|
||||
JNIEXPORT void JNICALL
|
||||
Java_org_brotli_wrapper_dec_DecoderJNI_nativeDestroy(
|
||||
JNIEnv* env, jobject /*jobj*/, jlongArray ctx);
|
||||
|
||||
JNIEXPORT jboolean JNICALL
|
||||
Java_org_brotli_wrapper_dec_DecoderJNI_nativeAttachDictionary(
|
||||
JNIEnv* env, jobject /*jobj*/, jlongArray ctx, jobject dictionary);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif // BROTLI_WRAPPER_DEC_DECODER_JNI_H_
|
55
java/org/brotli/wrapper/dec/decoder_jni_onload.cc
Normal file
55
java/org/brotli/wrapper/dec/decoder_jni_onload.cc
Normal file
@ -0,0 +1,55 @@
|
||||
/* Copyright 2017 Google Inc. All Rights Reserved.
|
||||
|
||||
Distributed under MIT license.
|
||||
See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
|
||||
*/
|
||||
|
||||
#include <jni.h>
|
||||
|
||||
#include "./decoder_jni.h"
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
static const JNINativeMethod kDecoderMethods[] = {
|
||||
{"nativeCreate", "([J)Ljava/nio/ByteBuffer;",
|
||||
reinterpret_cast<void*>(
|
||||
Java_org_brotli_wrapper_dec_DecoderJNI_nativeCreate)},
|
||||
{"nativePush", "([JI)V",
|
||||
reinterpret_cast<void*>(
|
||||
Java_org_brotli_wrapper_dec_DecoderJNI_nativePush)},
|
||||
{"nativePull", "([J)Ljava/nio/ByteBuffer;",
|
||||
reinterpret_cast<void*>(
|
||||
Java_org_brotli_wrapper_dec_DecoderJNI_nativePull)},
|
||||
{"nativeDestroy", "([J)V",
|
||||
reinterpret_cast<void*>(
|
||||
Java_org_brotli_wrapper_dec_DecoderJNI_nativeDestroy)},
|
||||
{"nativeAttachDictionary", "([JLjava/nio/ByteBuffer;)Z",
|
||||
reinterpret_cast<void*>(
|
||||
Java_org_brotli_wrapper_dec_DecoderJNI_nativeAttachDictionary)}};
|
||||
|
||||
JNIEXPORT jint JNI_OnLoad(JavaVM* vm, void* reserved) {
|
||||
JNIEnv* env;
|
||||
if (vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
jclass clazz =
|
||||
env->FindClass("com/google/compression/brotli/wrapper/dec/DecoderJNI");
|
||||
if (clazz == nullptr) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (env->RegisterNatives(
|
||||
clazz, kDecoderMethods,
|
||||
sizeof(kDecoderMethods) / sizeof(kDecoderMethods[0])) < 0) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
return JNI_VERSION_1_6;
|
||||
}
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
@ -69,6 +69,8 @@ public class Encoder {
|
||||
}
|
||||
|
||||
/**
|
||||
* Setup encoder quality.
|
||||
*
|
||||
* @param quality compression quality, or -1 for default
|
||||
*/
|
||||
public Parameters setQuality(int quality) {
|
||||
@ -80,6 +82,8 @@ public class Encoder {
|
||||
}
|
||||
|
||||
/**
|
||||
* Setup encoder window size.
|
||||
*
|
||||
* @param lgwin log2(LZ window size), or -1 for default
|
||||
*/
|
||||
public Parameters setWindow(int lgwin) {
|
||||
@ -91,6 +95,8 @@ public class Encoder {
|
||||
}
|
||||
|
||||
/**
|
||||
* Setup encoder compression mode.
|
||||
*
|
||||
* @param mode compression mode, or {@code null} for default
|
||||
*/
|
||||
public Parameters setMode(Mode mode) {
|
||||
@ -116,7 +122,8 @@ public class Encoder {
|
||||
}
|
||||
this.dictionaries = new ArrayList<PreparedDictionary>();
|
||||
this.destination = destination;
|
||||
this.encoder = new EncoderJNI.Wrapper(inputBufferSize, params.quality, params.lgwin, params.mode);
|
||||
this.encoder =
|
||||
new EncoderJNI.Wrapper(inputBufferSize, params.quality, params.lgwin, params.mode);
|
||||
this.inputBuffer = this.encoder.getInputBuffer();
|
||||
}
|
||||
|
||||
@ -212,7 +219,8 @@ public class Encoder {
|
||||
return empty;
|
||||
}
|
||||
/* data.length > 0 */
|
||||
EncoderJNI.Wrapper encoder = new EncoderJNI.Wrapper(data.length, params.quality, params.lgwin, params.mode);
|
||||
EncoderJNI.Wrapper encoder =
|
||||
new EncoderJNI.Wrapper(data.length, params.quality, params.lgwin, params.mode);
|
||||
ArrayList<byte[]> output = new ArrayList<byte[]>();
|
||||
int totalOutputSize = 0;
|
||||
try {
|
||||
|
6
js/BUILD
6
js/BUILD
@ -1,11 +1,11 @@
|
||||
load("@io_bazel_rules_closure//closure:defs.bzl", "closure_js_library", "closure_js_test")
|
||||
|
||||
package(
|
||||
default_visibility = ["//visibility:public"],
|
||||
)
|
||||
|
||||
licenses(["notice"]) # MIT
|
||||
|
||||
load("@io_bazel_rules_closure//closure:defs.bzl", "closure_js_library")
|
||||
|
||||
# Not a real polyfill. Do NOT use for anything, but tests.
|
||||
closure_js_library(
|
||||
name = "polyfill",
|
||||
@ -27,8 +27,6 @@ closure_js_library(
|
||||
deps = [":polyfill"],
|
||||
)
|
||||
|
||||
load("@io_bazel_rules_closure//closure:defs.bzl", "closure_js_test")
|
||||
|
||||
closure_js_test(
|
||||
name = "all_tests",
|
||||
srcs = ["decode_test.js"],
|
||||
|
72
js/bundle_test.js
Normal file
72
js/bundle_test.js
Normal file
@ -0,0 +1,72 @@
|
||||
/* Copyright 2017 Google Inc. All Rights Reserved.
|
||||
|
||||
Distributed under MIT license.
|
||||
See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
|
||||
*/
|
||||
import {BrotliDecode} from "./decode.js";
|
||||
import {makeTestData} from "./test_data.js";
|
||||
goog.require('goog.testing.asserts');
|
||||
const testSuite = goog.require('goog.testing.testSuite');
|
||||
|
||||
const CRC_64_POLY = new Uint32Array([0xD7870F42, 0xC96C5795]);
|
||||
|
||||
/**
|
||||
* Calculates binary data footprint.
|
||||
*
|
||||
* @param {!Int8Array} data binary data
|
||||
* @return {string} footprint
|
||||
*/
|
||||
function calculateCrc64(data) {
|
||||
let crc = new Uint32Array([0xFFFFFFFF, 0xFFFFFFFF]);
|
||||
let c = new Uint32Array(2);
|
||||
for (let i = 0; i < data.length; ++i) {
|
||||
c[1] = 0;
|
||||
c[0] = (crc[0] ^ data[i]) & 0xFF;
|
||||
for (let k = 0; k < 8; ++k) {
|
||||
const isOdd = c[0] & 1;
|
||||
c[0] = (c[0] >>> 1) | ((c[1] & 1) << 31);
|
||||
c[1] = c[1] >>> 1;
|
||||
if (isOdd) {
|
||||
c[0] = c[0] ^ CRC_64_POLY[0];
|
||||
c[1] = c[1] ^ CRC_64_POLY[1];
|
||||
}
|
||||
}
|
||||
crc[0] = ((crc[0] >>> 8) | ((crc[1] & 0xFF) << 24)) ^ c[0];
|
||||
crc[1] = (crc[1] >>> 8) ^ c[1];
|
||||
}
|
||||
crc[0] = ~crc[0];
|
||||
crc[1] = ~crc[1];
|
||||
|
||||
let lo = crc[0].toString(16);
|
||||
lo = "0".repeat(8 - lo.length) + lo;
|
||||
let hi = crc[1].toString(16);
|
||||
hi = "0".repeat(8 - hi.length) + hi;
|
||||
|
||||
return hi + lo;
|
||||
}
|
||||
|
||||
/**
|
||||
* Decompresses data and checks that output footprint is correct.
|
||||
*
|
||||
* @param {string} entry filename including footprint prefix
|
||||
* @param {!Int8Array} data compressed data
|
||||
*/
|
||||
function checkEntry(entry, data) {
|
||||
const expectedCrc = entry.substring(0, 16);
|
||||
const decompressed = BrotliDecode(data);
|
||||
const crc = calculateCrc64(decompressed);
|
||||
assertEquals(expectedCrc, crc);
|
||||
}
|
||||
|
||||
let allTests = {};
|
||||
const testData = makeTestData();
|
||||
for (let entry in testData) {
|
||||
if (!testData.hasOwnProperty(entry)) {
|
||||
continue;
|
||||
}
|
||||
const name = entry.substring(17);
|
||||
const data = testData[entry];
|
||||
allTests['test_' + name] = checkEntry.bind(null, entry, data);
|
||||
}
|
||||
|
||||
testSuite(allTests);
|
59
js/cli.js
Normal file
59
js/cli.js
Normal file
@ -0,0 +1,59 @@
|
||||
#!/usr/bin/env node
|
||||
|
||||
let defaults =
|
||||
{input: 'input.br', output: 'output.txt', test_iters: 0, test_repeat: 100};
|
||||
|
||||
/* Parse command line arguments. */
|
||||
let argv =
|
||||
require('yargs')
|
||||
.usage('Usage: $0 -i file -o file')
|
||||
.option(
|
||||
'input',
|
||||
{alias: 'i', default: defaults.input, describe: 'compressed file'})
|
||||
.option('output', {
|
||||
alias: 'o',
|
||||
default: defaults.output,
|
||||
describe: 'decompressed file'
|
||||
})
|
||||
.option('test_iters', {
|
||||
default: defaults.test_iters,
|
||||
describe: '# of times to run performance test'
|
||||
})
|
||||
.option('test_repeat', {
|
||||
default: defaults.test_repeat,
|
||||
describe: '# of times to decompress file in performance test'
|
||||
})
|
||||
.argv;
|
||||
|
||||
/* Read input. */
|
||||
const fs = require('fs');
|
||||
data = fs.readFileSync(argv.input);
|
||||
if (!Buffer.isBuffer(data)) throw 'not a buffer';
|
||||
const bytes = new Uint8Array(data);
|
||||
|
||||
/* Load and map brotli decoder module. */
|
||||
global.window = {};
|
||||
require('./decode.js')
|
||||
const brotliDecode = window['BrotliDecode'];
|
||||
|
||||
/* Load "performance" module. */
|
||||
const {PerformanceObserver, performance} = require('perf_hooks');
|
||||
|
||||
/* Performance test. */
|
||||
for (let i = 0; i < argv.test_iters; ++i) {
|
||||
const a = performance.now();
|
||||
let result;
|
||||
for (let j = 0; j < argv.test_repeat; ++j) {
|
||||
result = brotliDecode(bytes);
|
||||
}
|
||||
const b = performance.now();
|
||||
const total_length = argv.test_repeat * result.length / (1024 * 1024);
|
||||
const total_time = (b - a) / 1000;
|
||||
|
||||
console.log(
|
||||
total_length + 'MB / ' + total_time +
|
||||
's = ' + (total_length / total_time) + 'MB/s');
|
||||
}
|
||||
|
||||
/* Decode and write output file. */
|
||||
fs.writeFileSync(argv.output, new Buffer(brotliDecode(bytes)));
|
2281
js/decode_synth_test.js
Normal file
2281
js/decode_synth_test.js
Normal file
File diff suppressed because it is too large
Load Diff
14
js/package.json
Normal file
14
js/package.json
Normal file
@ -0,0 +1,14 @@
|
||||
{
|
||||
"name": "brotli",
|
||||
"description": "Pure JavaScript Brotli implementation",
|
||||
"bin": {
|
||||
"brotli": "cli.js"
|
||||
},
|
||||
"files": [
|
||||
"cli.js",
|
||||
"decode.js",
|
||||
],
|
||||
"dependencies": {
|
||||
"yargs": "~8.0.2"
|
||||
},
|
||||
}
|
28
js/test_data.js
Normal file
28
js/test_data.js
Normal file
File diff suppressed because one or more lines are too long
BIN
js/test_data.tar
Normal file
BIN
js/test_data.tar
Normal file
Binary file not shown.
@ -7,7 +7,6 @@
|
||||
|
||||
import _brotli
|
||||
|
||||
|
||||
# The library version.
|
||||
__version__ = _brotli.__version__
|
||||
|
||||
|
@ -7,10 +7,8 @@ licenses(["notice"]) # MIT
|
||||
cc_library(
|
||||
name = "dm",
|
||||
srcs = ["deorummolae.cc"],
|
||||
hdrs = [
|
||||
"deorummolae.h",
|
||||
"esaxx/sais.hxx",
|
||||
],
|
||||
deps = ["@esaxx//:sais"],
|
||||
hdrs = ["deorummolae.h"],
|
||||
)
|
||||
|
||||
cc_library(
|
||||
|
@ -19,6 +19,7 @@ cc_library(
|
||||
"-DHAVE_CONFIG_H=1",
|
||||
],
|
||||
includes = ["include"],
|
||||
include_prefix = "third_party/libdivsufsort",
|
||||
)
|
||||
|
||||
commom_awk_replaces = (
|
||||
|
@ -1,17 +0,0 @@
|
||||
CC = g++
|
||||
CFLAGS += -O2
|
||||
CPPFLAGS += -std=c++11
|
||||
SOURCES = $(wildcard *.cc)
|
||||
EXECUTABLES = $(SOURCES:.cc=)
|
||||
BINDIR = bin
|
||||
|
||||
all: $(EXECUTABLES)
|
||||
|
||||
$(BINDIR):
|
||||
mkdir -p $@
|
||||
|
||||
$(EXECUTABLES): $(BINDIR)
|
||||
$(CC) $(CFLAGS) $(CPPFLAGS) $(addsuffix .cc, $@) -o $(BINDIR)/$@ -lgflags_nothreads
|
||||
|
||||
clean:
|
||||
rm -rf $(BINDIR)
|
@ -1,12 +1,30 @@
|
||||
workspace(name = "org_brotli_research")
|
||||
|
||||
load("@bazel_tools//tools/build_defs/repo:git.bzl", "new_git_repository")
|
||||
|
||||
local_repository(
|
||||
name = "org_brotli",
|
||||
path = "..",
|
||||
)
|
||||
|
||||
new_local_repository(
|
||||
new_git_repository(
|
||||
name = "divsufsort",
|
||||
build_file = "BUILD.libdivsufsort",
|
||||
path = "libdivsufsort",
|
||||
build_file = "@//:BUILD.libdivsufsort",
|
||||
commit = "5f60d6f026c30fb4ac296f696b3c8b0eb71bd428",
|
||||
remote = "https://github.com/y-256/libdivsufsort",
|
||||
)
|
||||
|
||||
new_git_repository(
|
||||
name = "esaxx",
|
||||
build_file_content = """
|
||||
package(default_visibility = ["//visibility:public"])
|
||||
cc_library(
|
||||
name = "sais",
|
||||
hdrs = ["sais.hxx"],
|
||||
includes = ["."],
|
||||
include_prefix = "third_party/esaxx",
|
||||
)
|
||||
""",
|
||||
commit = "ca7cb332011ec37a8436487f210f396b84bd8273",
|
||||
remote = "https://github.com/hillbig/esaxx",
|
||||
)
|
||||
|
@ -3,7 +3,7 @@
|
||||
#include <array>
|
||||
#include <cstdio>
|
||||
|
||||
#include "./esaxx/sais.hxx"
|
||||
#include "third_party/esaxx/sais.hxx"
|
||||
|
||||
/* Used for quick SA-entry to file mapping. Each file is padded to size that
|
||||
is a multiple of chunk size. */
|
||||
|
@ -18,6 +18,7 @@
|
||||
#include <gflags/gflags.h>
|
||||
using gflags::ParseCommandLineFlags;
|
||||
|
||||
#include "third_party/absl/flags/flag.h"
|
||||
#include "./read_dist.h"
|
||||
|
||||
DEFINE_int32(height, 1000, "Height of the resulting histogam.");
|
||||
@ -32,7 +33,7 @@ DEFINE_bool(linear, false, "True if using linear distance mapping.");
|
||||
DEFINE_uint64(skip, 0, "Number of bytes to skip.");
|
||||
|
||||
inline double DistanceTransform(double x) {
|
||||
static bool linear = FLAGS_linear;
|
||||
static bool linear = absl::GetFlag(FLAGS_linear);
|
||||
if (linear) {
|
||||
return x;
|
||||
} else {
|
||||
@ -48,14 +49,12 @@ inline double DensityTransform(double x) {
|
||||
return sqrt(255 * 255 - z * z);
|
||||
}
|
||||
|
||||
inline int GetMaxDistance() {
|
||||
return FLAGS_max_distance;
|
||||
}
|
||||
inline int GetMaxDistance() { return absl::GetFlag(FLAGS_max_distance); }
|
||||
|
||||
void AdjustPosition(int* pos) {
|
||||
static uint32_t offset = 0;
|
||||
static int last = 0;
|
||||
static uint32_t window_size = (1 << FLAGS_brotli_window);
|
||||
static uint32_t window_size = (1 << absl::GetFlag(FLAGS_brotli_window));
|
||||
assert(*pos >= 0 && *pos < window_size);
|
||||
if (*pos < last) {
|
||||
offset += window_size;
|
||||
@ -65,10 +64,10 @@ void AdjustPosition(int* pos) {
|
||||
}
|
||||
|
||||
void BuildHistogram(FILE* fin, int** histo) {
|
||||
int height = FLAGS_height;
|
||||
int width = FLAGS_width;
|
||||
int skip = FLAGS_skip;
|
||||
size_t min_distance = FLAGS_min_distance;
|
||||
int height = absl::GetFlag(FLAGS_height);
|
||||
int width = absl::GetFlag(FLAGS_width);
|
||||
int skip = absl::GetFlag(FLAGS_skip);
|
||||
size_t min_distance = absl::GetFlag(FLAGS_min_distance);
|
||||
|
||||
printf("height = %d, width = %d\n", height, width);
|
||||
|
||||
@ -78,7 +77,7 @@ void BuildHistogram(FILE* fin, int** histo) {
|
||||
}
|
||||
}
|
||||
|
||||
int max_pos = FLAGS_size - skip;
|
||||
int max_pos = absl::GetFlag(FLAGS_size) - skip;
|
||||
double min_dist = min_distance > 0 ? DistanceTransform(min_distance) : 0;
|
||||
double max_dist = DistanceTransform(GetMaxDistance()) - min_dist;
|
||||
int copy, pos, distance, x, y;
|
||||
@ -86,7 +85,7 @@ void BuildHistogram(FILE* fin, int** histo) {
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while (ReadBackwardReference(fin, ©, &pos, &distance)) {
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if (pos == -1) continue; // In case when only insert is present.
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if (distance < min_distance || distance >= GetMaxDistance()) continue;
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if (FLAGS_brotli_window != -1) {
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if (absl::GetFlag(FLAGS_brotli_window) != -1) {
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AdjustPosition(&pos);
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}
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if (pos >= skip && distance <= pos) {
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@ -102,7 +101,7 @@ void BuildHistogram(FILE* fin, int** histo) {
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assert(y >= 0 && y < width);
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}
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||||
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||||
if (FLAGS_with_copies) {
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||||
if (absl::GetFlag(FLAGS_with_copies)) {
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||||
int right = 1ul * (pos + copy - 1) * width / max_pos;
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||||
if (right < 0) {
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printf("pos = %d, distance = %d, copy = %d, y = %d, right = %d\n",
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@ -131,8 +130,8 @@ void BuildHistogram(FILE* fin, int** histo) {
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||||
}
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void ConvertToPixels(int** histo, uint8_t** pixel) {
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||||
int height = FLAGS_height;
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||||
int width = FLAGS_width;
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||||
int height = absl::GetFlag(FLAGS_height);
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||||
int width = absl::GetFlag(FLAGS_width);
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||||
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||||
int maxs = 0;
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||||
for (int i = 0; i < height; i++) {
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||||
@ -141,7 +140,7 @@ void ConvertToPixels(int** histo, uint8_t** pixel) {
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||||
}
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}
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||||
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||||
bool simple = FLAGS_simple;
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||||
bool simple = absl::GetFlag(FLAGS_simple);
|
||||
double max_histo = static_cast<double>(maxs);
|
||||
for (int i = 0; i < height; i++) {
|
||||
for (int j = 0; j < width; j++) {
|
||||
@ -156,8 +155,8 @@ void ConvertToPixels(int** histo, uint8_t** pixel) {
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||||
}
|
||||
|
||||
void DrawPixels(uint8_t** pixel, FILE* fout) {
|
||||
int height = FLAGS_height;
|
||||
int width = FLAGS_width;
|
||||
int height = absl::GetFlag(FLAGS_height);
|
||||
int width = absl::GetFlag(FLAGS_width);
|
||||
|
||||
fprintf(fout, "P5\n%d %d\n255\n", width, height);
|
||||
for (int i = height - 1; i >= 0; i--) {
|
||||
@ -166,14 +165,14 @@ void DrawPixels(uint8_t** pixel, FILE* fout) {
|
||||
}
|
||||
|
||||
int main(int argc, char* argv[]) {
|
||||
ParseCommandLineFlags(&argc, &argv, true);
|
||||
base::ParseCommandLine(&argc, &argv);
|
||||
if (argc != 3) {
|
||||
printf("usage: draw_histogram.cc data output_file\n");
|
||||
return 1;
|
||||
}
|
||||
|
||||
int height = FLAGS_height;
|
||||
int width = FLAGS_width;
|
||||
int height = absl::GetFlag(FLAGS_height);
|
||||
int width = absl::GetFlag(FLAGS_width);
|
||||
|
||||
FILE* fin = fopen(argv[1], "r");
|
||||
FILE* fout = fopen(argv[2], "wb");
|
||||
|
@ -3,7 +3,7 @@
|
||||
#include <algorithm>
|
||||
#include <exception> /* terminate */
|
||||
|
||||
#include "divsufsort.h"
|
||||
#include "third_party/libdivsufsort/include/divsufsort.h"
|
||||
|
||||
/* Pointer to position in text. */
|
||||
typedef DurchschlagTextIdx TextIdx;
|
||||
|
@ -1 +0,0 @@
|
||||
Subproject commit ca7cb332011ec37a8436487f210f396b84bd8273
|
@ -19,7 +19,8 @@
|
||||
#include <gflags/gflags.h>
|
||||
using gflags::ParseCommandLineFlags;
|
||||
|
||||
#include "./esaxx/sais.hxx"
|
||||
#include "third_party/absl/flags/flag.h"
|
||||
#include "third_party/esaxx/sais.hxx"
|
||||
|
||||
DEFINE_bool(advanced, false, "Advanced searching mode: finds all longest "
|
||||
"matches at positions that are not covered by matches of length at least "
|
||||
@ -91,7 +92,7 @@ inline void PrintReference(sarray_type* sarray, lcp_type* lcp, size_t size,
|
||||
inline void GoLeft(sarray_type* sarray, lcp_type* lcp, int idx, int left_ix,
|
||||
int left_lcp, entry_type* entry) {
|
||||
entry->first = left_lcp;
|
||||
if (left_lcp > FLAGS_long_length) return;
|
||||
if (left_lcp > absl::GetFlag(FLAGS_long_length)) return;
|
||||
for (; left_ix >= 0; --left_ix) {
|
||||
if (lcp[left_ix] < left_lcp) break;
|
||||
if (sarray[left_ix] < idx) {
|
||||
@ -103,7 +104,7 @@ inline void GoLeft(sarray_type* sarray, lcp_type* lcp, int idx, int left_ix,
|
||||
inline void GoRight(sarray_type* sarray, lcp_type* lcp, int idx, size_t size,
|
||||
int right_ix, int right_lcp, entry_type* entry) {
|
||||
entry->first = right_lcp;
|
||||
if (right_lcp > FLAGS_long_length) return;
|
||||
if (right_lcp > absl::GetFlag(FLAGS_long_length)) return;
|
||||
for (; right_ix < size - 1; ++right_ix) {
|
||||
if (lcp[right_ix] < right_lcp) break;
|
||||
if (sarray[right_ix] < idx) {
|
||||
@ -129,8 +130,8 @@ inline void StoreReference(sarray_type* sarray, lcp_type* lcp, size_t size,
|
||||
|
||||
void ProcessReferences(sarray_type* sarray, lcp_type* lcp, size_t size,
|
||||
uint32_t* pos, const Fn& process_output) {
|
||||
int min_length = FLAGS_min_length;
|
||||
for (int idx = FLAGS_skip; idx < size; ++idx) {
|
||||
int min_length = absl::GetFlag(FLAGS_min_length);
|
||||
for (int idx = absl::GetFlag(FLAGS_skip); idx < size; ++idx) {
|
||||
int left_lcp = -1;
|
||||
int left_ix;
|
||||
for (left_ix = pos[idx] - 1; left_ix >= 0; --left_ix) {
|
||||
@ -162,7 +163,7 @@ void ProcessReferences(sarray_type* sarray, lcp_type* lcp, size_t size,
|
||||
}
|
||||
|
||||
void ProcessEntries(entry_type* entries, size_t size, FILE* fout) {
|
||||
int long_length = FLAGS_long_length;
|
||||
int long_length = absl::GetFlag(FLAGS_long_length);
|
||||
std::vector<std::pair<int, int> > segments;
|
||||
size_t idx;
|
||||
for (idx = 0; idx < size;) {
|
||||
@ -195,7 +196,7 @@ void ProcessEntries(entry_type* entries, size_t size, FILE* fout) {
|
||||
}
|
||||
|
||||
int main(int argc, char* argv[]) {
|
||||
ParseCommandLineFlags(&argc, &argv, true);
|
||||
base::ParseCommandLine(&argc, &argv);
|
||||
if (argc != 3) {
|
||||
printf("usage: %s input_file output_file\n", argv[0]);
|
||||
return 1;
|
||||
@ -235,7 +236,7 @@ int main(int argc, char* argv[]) {
|
||||
using std::placeholders::_7;
|
||||
using std::placeholders::_8;
|
||||
entry_type* entries;
|
||||
if (FLAGS_advanced) {
|
||||
if (absl::GetFlag(FLAGS_advanced)) {
|
||||
entries = new entry_type[input_size];
|
||||
for (size_t i = 0; i < input_size; ++i) entries[i].first = -1;
|
||||
}
|
||||
@ -243,10 +244,10 @@ int main(int argc, char* argv[]) {
|
||||
Fn store = std::bind(StoreReference, _1, _2, _3, _4, _5, _6, _7, _8, entries);
|
||||
|
||||
ProcessReferences(sarray, lcp, input_size, pos,
|
||||
FLAGS_advanced ? store : print);
|
||||
absl::GetFlag(FLAGS_advanced) ? store : print);
|
||||
printf("References processed.\n");
|
||||
|
||||
if (FLAGS_advanced) {
|
||||
if (absl::GetFlag(FLAGS_advanced)) {
|
||||
int good_cnt = 0;
|
||||
uint64_t avg_cnt = 0;
|
||||
for (size_t i = 0; i < input_size; ++i) {
|
||||
|
@ -1 +0,0 @@
|
||||
Subproject commit 5f60d6f026c30fb4ac296f696b3c8b0eb71bd428
|
Loading…
Reference in New Issue
Block a user