Makefile : added capability to install libraries

Modified Directory tree, to better separate libraries from programs.


git-svn-id: https://lz4.googlecode.com/svn/trunk@111 650e7d94-2a16-8b24-b05c-7c0b3f6821cd

1 files changed, 441 insertions, 0 deletions

diff --git a/programs/bench.c b/programs/bench.c
new file mode 100644
index 0000000..df3c44a
--- /dev/null
+++ b/programs/bench.c
@@ -0,0 +1,441 @@
+/*
+    bench.c - Demo program to benchmark open-source compression algorithm
+    Copyright (C) Yann Collet 2012-2013
+    GPL v2 License
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+    You can contact the author at :
+    - LZ4 homepage : http://fastcompression.blogspot.com/p/lz4.html
+    - LZ4 source repository : http://code.google.com/p/lz4/
+*/
+
+//**************************************
+// Compiler Options
+//**************************************
+// Disable some Visual warning messages
+#define _CRT_SECURE_NO_WARNINGS
+#define _CRT_SECURE_NO_DEPRECATE     // VS2005
+
+// Unix Large Files support (>4GB)
+#define _FILE_OFFSET_BITS 64
+#if (defined(__sun__) && (!defined(__LP64__)))   // Sun Solaris 32-bits requires specific definitions
+#  define _LARGEFILE_SOURCE 
+#elif ! defined(__LP64__)                        // No point defining Large file for 64 bit
+#  define _LARGEFILE64_SOURCE
+#endif
+
+// S_ISREG & gettimeofday() are not supported by MSVC
+#if defined(_MSC_VER) || defined(_WIN32)
+#  define BMK_LEGACY_TIMER 1
+#endif
+
+
+//**************************************
+// Includes
+//**************************************
+#include <stdlib.h>      // malloc
+#include <stdio.h>       // fprintf, fopen, ftello64
+#include <sys/types.h>   // stat64
+#include <sys/stat.h>    // stat64
+
+// Use ftime() if gettimeofday() is not available on your target
+#if defined(BMK_LEGACY_TIMER)
+#  include <sys/timeb.h>   // timeb, ftime
+#else
+#  include <sys/time.h>    // gettimeofday
+#endif
+
+#include "lz4.h"
+#define COMPRESSOR0 LZ4_compress
+#include "lz4hc.h"
+#define COMPRESSOR1 LZ4_compressHC
+#define DEFAULTCOMPRESSOR COMPRESSOR0
+
+#include "xxhash.h"
+
+
+//**************************************
+// Compiler specifics
+//**************************************
+#if !defined(S_ISREG)
+#  define S_ISREG(x) (((x) & S_IFMT) == S_IFREG)
+#endif
+
+// GCC does not support _rotl outside of Windows
+#if !defined(_WIN32)
+#  define _rotl(x,r) ((x << r) | (x >> (32 - r)))
+#endif
+
+
+//**************************************
+// Basic Types
+//**************************************
+#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L   // C99
+# include <stdint.h>
+  typedef uint8_t  BYTE;
+  typedef uint16_t U16;
+  typedef uint32_t U32;
+  typedef  int32_t S32;
+  typedef uint64_t U64;
+#else
+  typedef unsigned char       BYTE;
+  typedef unsigned short      U16;
+  typedef unsigned int        U32;
+  typedef   signed int        S32;
+  typedef unsigned long long  U64;
+#endif
+
+
+//**************************************
+// Constants
+//**************************************
+#define NBLOOPS    3
+#define TIMELOOP   2000
+
+#define KB *(1U<<10)
+#define MB *(1U<<20)
+#define GB *(1U<<30)
+
+#define KNUTH               2654435761U
+#define MAX_MEM             (2 GB - 64 MB)
+#define DEFAULT_CHUNKSIZE   (4 MB)
+
+
+//**************************************
+// Local structures
+//**************************************
+struct chunkParameters
+{
+    U32   id;
+    char* origBuffer;
+    char* compressedBuffer;
+    int   origSize;
+    int   compressedSize;
+};
+
+struct compressionParameters
+{
+    int (*compressionFunction)(const char*, char*, int);
+    int (*decompressionFunction)(const char*, char*, int);
+};
+
+
+//**************************************
+// MACRO
+//**************************************
+#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
+
+
+
+//**************************************
+// Benchmark Parameters
+//**************************************
+static int chunkSize = DEFAULT_CHUNKSIZE;
+static int nbIterations = NBLOOPS;
+static int BMK_pause = 0;
+
+void BMK_SetBlocksize(int bsize) { chunkSize = bsize; }
+
+void BMK_SetNbIterations(int nbLoops)
+{
+    nbIterations = nbLoops;
+    DISPLAY("- %i iterations -\n", nbIterations);
+}
+
+void BMK_SetPause() { BMK_pause = 1; }
+
+
+//*********************************************************
+//  Private functions
+//*********************************************************
+
+#if defined(BMK_LEGACY_TIMER)
+
+static int BMK_GetMilliStart()
+{
+  // Based on Legacy ftime()
+  // Rolls over every ~ 12.1 days (0x100000/24/60/60)
+  // Use GetMilliSpan to correct for rollover
+  struct timeb tb;
+  int nCount;
+  ftime( &tb );
+  nCount = (int) (tb.millitm + (tb.time & 0xfffff) * 1000);
+  return nCount;
+}
+
+#else
+
+static int BMK_GetMilliStart()
+{
+  // Based on newer gettimeofday()
+  // Use GetMilliSpan to correct for rollover
+  struct timeval tv;
+  int nCount;
+  gettimeofday(&tv, NULL);
+  nCount = (int) (tv.tv_usec/1000 + (tv.tv_sec & 0xfffff) * 1000);
+  return nCount;
+}
+
+#endif
+
+
+static int BMK_GetMilliSpan( int nTimeStart )
+{
+  int nSpan = BMK_GetMilliStart() - nTimeStart;
+  if ( nSpan < 0 )
+    nSpan += 0x100000 * 1000;
+  return nSpan;
+}
+
+
+static size_t BMK_findMaxMem(U64 requiredMem)
+{
+    size_t step = (64 MB);
+    BYTE* testmem=NULL;
+
+    requiredMem = (((requiredMem >> 26) + 1) << 26);
+    requiredMem += 2*step;
+    if (requiredMem > MAX_MEM) requiredMem = MAX_MEM;
+
+    while (!testmem)
+    {
+        requiredMem -= step;
+        testmem = (BYTE*) malloc ((size_t)requiredMem);
+    }
+
+    free (testmem);
+    return (size_t) (requiredMem - step);
+}
+
+
+static U64 BMK_GetFileSize(char* infilename)
+{
+    int r;
+#if defined(_MSC_VER)
+    struct _stat64 statbuf;
+    r = _stat64(infilename, &statbuf);
+#else
+    struct stat statbuf;
+    r = stat(infilename, &statbuf);
+#endif
+    if (r || !S_ISREG(statbuf.st_mode)) return 0;   // No good...
+    return (U64)statbuf.st_size;
+}
+
+
+//*********************************************************
+//  Public function
+//*********************************************************
+
+int BMK_benchFile(char** fileNamesTable, int nbFiles, int cLevel)
+{
+  int fileIdx=0;
+  char* orig_buff;
+  struct compressionParameters compP;
+  int cfunctionId;
+
+  U64 totals = 0;
+  U64 totalz = 0;
+  double totalc = 0.;
+  double totald = 0.;
+
+
+  // Init
+  if (cLevel <3) cfunctionId = 0; else cfunctionId = 1;
+  switch (cfunctionId)
+  {
+#ifdef COMPRESSOR0
+  case 0 : compP.compressionFunction = COMPRESSOR0; break;
+#endif
+#ifdef COMPRESSOR1
+  case 1 : compP.compressionFunction = COMPRESSOR1; break;
+#endif
+  default : compP.compressionFunction = DEFAULTCOMPRESSOR;
+  }
+  compP.decompressionFunction = LZ4_decompress_fast;
+
+  // Loop for each file
+  while (fileIdx<nbFiles)
+  {
+      FILE*  inFile;
+      char*  inFileName;
+      U64    inFileSize;
+      size_t benchedSize;
+      int nbChunks;
+      int maxCompressedChunkSize;
+      size_t readSize;
+      char* compressedBuffer; int compressedBuffSize;
+      struct chunkParameters* chunkP;
+      U32 crcOrig;
+
+      // Check file existence
+      inFileName = fileNamesTable[fileIdx++];
+      inFile = fopen( inFileName, "rb" );
+      if (inFile==NULL)
+      {
+        DISPLAY( "Pb opening %s\n", inFileName);
+        return 11;
+      }
+
+      // Memory allocation & restrictions
+      inFileSize = BMK_GetFileSize(inFileName);
+      benchedSize = (size_t) BMK_findMaxMem(inFileSize * 2) / 2;
+      if ((U64)benchedSize > inFileSize) benchedSize = (size_t)inFileSize;
+      if (benchedSize < inFileSize)
+      {
+          DISPLAY("Not enough memory for '%s' full size; testing %i MB only...\n", inFileName, (int)(benchedSize>>20));
+      }
+
+      // Alloc
+      chunkP = (struct chunkParameters*) malloc(((benchedSize / chunkSize)+1) * sizeof(struct chunkParameters));
+      orig_buff = (char*)malloc((size_t )benchedSize);
+      nbChunks = (int) (benchedSize / chunkSize) + 1;
+      maxCompressedChunkSize = LZ4_compressBound(chunkSize);
+      compressedBuffSize = nbChunks * maxCompressedChunkSize;
+      compressedBuffer = (char*)malloc((size_t )compressedBuffSize);
+
+
+      if (!orig_buff || !compressedBuffer)
+      {
+        DISPLAY("\nError: not enough memory!\n");
+        free(orig_buff);
+        free(compressedBuffer);
+        free(chunkP);
+        fclose(inFile);
+        return 12;
+      }
+
+      // Init chunks data
+      {
+          int i;
+          size_t remaining = benchedSize;
+          char* in = orig_buff;
+          char* out = compressedBuffer;
+          for (i=0; i<nbChunks; i++)
+          {
+              chunkP[i].id = i;
+              chunkP[i].origBuffer = in; in += chunkSize;
+              if ((int)remaining > chunkSize) { chunkP[i].origSize = chunkSize; remaining -= chunkSize; } else { chunkP[i].origSize = (int)remaining; remaining = 0; }
+              chunkP[i].compressedBuffer = out; out += maxCompressedChunkSize;
+              chunkP[i].compressedSize = 0;
+          }
+      }
+
+      // Fill input buffer
+      DISPLAY("Loading %s...       \r", inFileName);
+      readSize = fread(orig_buff, 1, benchedSize, inFile);
+      fclose(inFile);
+
+      if (readSize != benchedSize)
+      {
+        DISPLAY("\nError: problem reading file '%s' !!    \n", inFileName);
+        free(orig_buff);
+        free(compressedBuffer);
+        free(chunkP);
+        return 13;
+      }
+
+      // Calculating input Checksum
+      crcOrig = XXH32(orig_buff, (unsigned int)benchedSize,0);
+
+
+      // Bench
+      {
+        int loopNb, chunkNb;
+        size_t cSize=0;
+        double fastestC = 100000000., fastestD = 100000000.;
+        double ratio=0.;
+        U32 crcCheck=0;
+
+        DISPLAY("\r%79s\r", "");
+        for (loopNb = 1; loopNb <= nbIterations; loopNb++)
+        {
+          int nbLoops;
+          int milliTime;
+
+          // Compression
+          DISPLAY("%1i-%-14.14s : %9i ->\r", loopNb, inFileName, (int)benchedSize);
+          { size_t i; for (i=0; i<benchedSize; i++) compressedBuffer[i]=(char)i; }     // warmimg up memory
+
+          nbLoops = 0;
+          milliTime = BMK_GetMilliStart();
+          while(BMK_GetMilliStart() == milliTime);
+          milliTime = BMK_GetMilliStart();
+          while(BMK_GetMilliSpan(milliTime) < TIMELOOP)
+          {
+            for (chunkNb=0; chunkNb<nbChunks; chunkNb++)
+                chunkP[chunkNb].compressedSize = compP.compressionFunction(chunkP[chunkNb].origBuffer, chunkP[chunkNb].compressedBuffer, chunkP[chunkNb].origSize);
+            nbLoops++;
+          }
+          milliTime = BMK_GetMilliSpan(milliTime);
+
+          if ((double)milliTime < fastestC*nbLoops) fastestC = (double)milliTime/nbLoops;
+          cSize=0; for (chunkNb=0; chunkNb<nbChunks; chunkNb++) cSize += chunkP[chunkNb].compressedSize;
+          ratio = (double)cSize/(double)benchedSize*100.;
+
+          DISPLAY("%1i-%-14.14s : %9i -> %9i (%5.2f%%),%7.1f MB/s\r", loopNb, inFileName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / fastestC / 1000.);
+
+          // Decompression
+          { size_t i; for (i=0; i<benchedSize; i++) orig_buff[i]=0; }     // zeroing area, for CRC checking
+
+          nbLoops = 0;
+          milliTime = BMK_GetMilliStart();
+          while(BMK_GetMilliStart() == milliTime);
+          milliTime = BMK_GetMilliStart();
+          while(BMK_GetMilliSpan(milliTime) < TIMELOOP)
+          {
+            for (chunkNb=0; chunkNb<nbChunks; chunkNb++)
+                chunkP[chunkNb].compressedSize = LZ4_decompress_fast(chunkP[chunkNb].compressedBuffer, chunkP[chunkNb].origBuffer, chunkP[chunkNb].origSize);
+            nbLoops++;
+          }
+          milliTime = BMK_GetMilliSpan(milliTime);
+
+          if ((double)milliTime < fastestD*nbLoops) fastestD = (double)milliTime/nbLoops;
+          DISPLAY("%1i-%-14.14s : %9i -> %9i (%5.2f%%),%7.1f MB/s ,%7.1f MB/s\r", loopNb, inFileName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / fastestC / 1000., (double)benchedSize / fastestD / 1000.);
+
+          // CRC Checking
+          crcCheck = XXH32(orig_buff, (unsigned int)benchedSize,0);
+          if (crcOrig!=crcCheck) { DISPLAY("\n!!! WARNING !!! %14s : Invalid Checksum : %x != %x\n", inFileName, (unsigned)crcOrig, (unsigned)crcCheck); break; }
+        }
+
+        if (crcOrig==crcCheck)
+        {
+            if (ratio<100.)
+                DISPLAY("%-16.16s : %9i -> %9i (%5.2f%%),%7.1f MB/s ,%7.1f MB/s\n", inFileName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / fastestC / 1000., (double)benchedSize / fastestD / 1000.);
+            else
+                DISPLAY("%-16.16s : %9i -> %9i (%5.1f%%),%7.1f MB/s ,%7.1f MB/s \n", inFileName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / fastestC / 1000., (double)benchedSize / fastestD / 1000.);
+        }
+        totals += benchedSize;
+        totalz += cSize;
+        totalc += fastestC;
+        totald += fastestD;
+      }
+
+      free(orig_buff);
+      free(compressedBuffer);
+      free(chunkP);
+  }
+
+  if (nbFiles > 1)
+        DISPLAY("%-16.16s :%10llu ->%10llu (%5.2f%%), %6.1f MB/s , %6.1f MB/s\n", "  TOTAL", (long long unsigned int)totals, (long long unsigned int)totalz, (double)totalz/(double)totals*100., (double)totals/totalc/1000., (double)totals/totald/1000.);
+
+  if (BMK_pause) { DISPLAY("\npress enter...\n"); getchar(); }
+
+  return 0;
+}
+
+
+