Updated rasm to 1.7

1 files changed, 1109 insertions, 0 deletions

diff --git a/tools/rasm/lzsa-master/src/lzsa.c b/tools/rasm/lzsa-master/src/lzsa.c
new file mode 100755
index 0000000..96a460a
--- /dev/null
+++ b/tools/rasm/lzsa-master/src/lzsa.c
@@ -0,0 +1,1109 @@
+/*

+ * lzsa.c - command line compression utility for the LZSA format

+ *

+ * Copyright (C) 2019 Emmanuel Marty

+ *

+ * This software is provided 'as-is', without any express or implied

+ * warranty.  In no event will the authors be held liable for any damages

+ * arising from the use of this software.

+ *

+ * Permission is granted to anyone to use this software for any purpose,

+ * including commercial applications, and to alter it and redistribute it

+ * freely, subject to the following restrictions:

+ *

+ * 1. The origin of this software must not be misrepresented; you must not

+ *    claim that you wrote the original software. If you use this software

+ *    in a product, an acknowledgment in the product documentation would be

+ *    appreciated but is not required.

+ * 2. Altered source versions must be plainly marked as such, and must not be

+ *    misrepresented as being the original software.

+ * 3. This notice may not be removed or altered from any source distribution.

+ */

+

+/*

+ * Uses the libdivsufsort library Copyright (c) 2003-2008 Yuta Mori

+ *

+ * Inspired by LZ4 by Yann Collet. https://github.com/lz4/lz4

+ * With help, ideas, optimizations and speed measurements by spke <zxintrospec@gmail.com>

+ * With ideas from Lizard by Przemyslaw Skibinski and Yann Collet. https://github.com/inikep/lizard

+ * Also with ideas from smallz4 by Stephan Brumme. https://create.stephan-brumme.com/smallz4/

+ *

+ */

+

+#include <stdio.h>

+#include <stdlib.h>

+#include <string.h>

+#ifdef _WIN32

+#include <windows.h>

+#include <sys/timeb.h>

+#else

+#include <sys/time.h>

+#endif

+#include "lib.h"

+

+#define OPT_VERBOSE        1

+#define OPT_RAW            2

+#define OPT_FAVOR_RATIO    4

+#define OPT_RAW_BACKWARD   8

+#define OPT_STATS          16

+

+#define TOOL_VERSION "1.3.5"

+

+/*---------------------------------------------------------------------------*/

+

+#ifdef _WIN32

+LARGE_INTEGER hpc_frequency;

+BOOL hpc_available = FALSE;

+#endif

+

+static void do_init_time() {

+#ifdef _WIN32

+   hpc_frequency.QuadPart = 0;

+   hpc_available = QueryPerformanceFrequency(&hpc_frequency);

+#endif

+}

+

+static long long do_get_time() {

+   long long nTime;

+

+#ifdef _WIN32

+   if (hpc_available) {

+      LARGE_INTEGER nCurTime;

+

+      /* Use HPC hardware for best precision */

+      QueryPerformanceCounter(&nCurTime);

+      nTime = (long long)(nCurTime.QuadPart * 1000000LL / hpc_frequency.QuadPart);

+   }

+   else {

+      struct _timeb tb;

+      _ftime(&tb);

+

+      nTime = ((long long)tb.time * 1000LL + (long long)tb.millitm) * 1000LL;

+   }

+#else

+   struct timeval tm;

+   gettimeofday(&tm, NULL);

+

+   nTime = (long long)tm.tv_sec * 1000000LL + (long long)tm.tv_usec;

+#endif

+   return nTime;

+}

+

+/*---------------------------------------------------------------------------*/

+

+static void compression_progress(long long nOriginalSize, long long nCompressedSize) {

+   if (nOriginalSize >= 1024 * 1024) {

+      fprintf(stdout, "\r%lld => %lld (%g %%)     \b\b\b\b\b", nOriginalSize, nCompressedSize, (double)(nCompressedSize * 100.0 / nOriginalSize));

+      fflush(stdout);

+   }

+}

+

+static int do_compress(const char *pszInFilename, const char *pszOutFilename, const char *pszDictionaryFilename, const unsigned int nOptions, const int nMinMatchSize, const int nFormatVersion) {

+   long long nStartTime = 0LL, nEndTime = 0LL;

+   long long nOriginalSize = 0LL, nCompressedSize = 0LL;

+   int nCommandCount = 0, nSafeDist = 0;

+   int nFlags;

+   lzsa_status_t nStatus;

+   lzsa_stats stats;

+

+   nFlags = 0;

+   if (nOptions & OPT_FAVOR_RATIO)

+      nFlags |= LZSA_FLAG_FAVOR_RATIO;

+   if (nOptions & OPT_RAW)

+      nFlags |= LZSA_FLAG_RAW_BLOCK;

+   if (nOptions & OPT_RAW_BACKWARD)

+      nFlags |= LZSA_FLAG_RAW_BACKWARD;

+

+   if (nOptions & OPT_VERBOSE) {

+      nStartTime = do_get_time();

+   }

+

+   nStatus = lzsa_compress_file(pszInFilename, pszOutFilename, pszDictionaryFilename, nFlags, nMinMatchSize, nFormatVersion, compression_progress, &nOriginalSize, &nCompressedSize, &nCommandCount, &nSafeDist, &stats);

+

+   if ((nOptions & OPT_VERBOSE)) {

+      nEndTime = do_get_time();

+   }

+

+   switch (nStatus) {

+      case LZSA_ERROR_SRC: fprintf(stderr, "error reading '%s'\n", pszInFilename); break;

+      case LZSA_ERROR_DST: fprintf(stderr, "error writing '%s'\n", pszOutFilename); break;

+      case LZSA_ERROR_DICTIONARY: fprintf(stderr, "error reading dictionary '%s'\n", pszDictionaryFilename); break;

+      case LZSA_ERROR_MEMORY: fprintf(stderr, "out of memory\n"); break;

+      case LZSA_ERROR_COMPRESSION: fprintf(stderr, "internal compression error\n"); break;

+      case LZSA_ERROR_RAW_TOOLARGE: fprintf(stderr, "error: raw blocks can only be used with files <= 64 Kb\n"); break;

+      case LZSA_ERROR_RAW_UNCOMPRESSED: fprintf(stderr, "error: incompressible data needs to be <= 64 Kb in raw blocks\n"); break;

+      case LZSA_OK: break;

+      default: fprintf(stderr, "unknown compression error %d\n", nStatus); break;

+   }

+

+   if (nStatus)

+      return 100;

+

+   if ((nOptions & OPT_VERBOSE)) {

+      double fDelta = ((double)(nEndTime - nStartTime)) / 1000000.0;

+      double fSpeed = ((double)nOriginalSize / 1048576.0) / fDelta;

+      fprintf(stdout, "\rCompressed '%s' in %g seconds, %.02g Mb/s, %d tokens (%g bytes/token), %lld into %lld bytes ==> %g %%\n",

+         pszInFilename, fDelta, fSpeed, nCommandCount, (double)nOriginalSize / (double)nCommandCount,

+         nOriginalSize, nCompressedSize, (double)(nCompressedSize * 100.0 / nOriginalSize));

+      if (nOptions & OPT_RAW) {

+         fprintf(stdout, "Safe distance: %d (0x%X)\n", nSafeDist, nSafeDist);

+      }

+   }

+

+   if (nOptions & OPT_STATS) {

+      if (stats.literals_divisor > 0)

+         fprintf(stdout, "Literals: min: %d avg: %d max: %d count: %d\n", stats.min_literals, stats.total_literals / stats.literals_divisor, stats.max_literals, stats.literals_divisor);

+      else

+         fprintf(stdout, "Literals: none\n");

+      if (stats.match_divisor > 0) {

+         fprintf(stdout, "Offsets: min: %d avg: %d max: %d reps: %d count: %d\n", stats.min_offset, stats.total_offsets / stats.match_divisor, stats.max_offset, stats.num_rep_offsets, stats.match_divisor);

+         fprintf(stdout, "Match lens: min: %d avg: %d max: %d count: %d\n", stats.min_match_len, stats.total_match_lens / stats.match_divisor, stats.max_match_len, stats.match_divisor);

+      }

+      else {

+         fprintf(stdout, "Offsets: none\n");

+         fprintf(stdout, "Match lens: none\n");

+      }

+      if (stats.rle1_divisor > 0) {

+         fprintf(stdout, "RLE1 lens: min: %d avg: %d max: %d count: %d\n", stats.min_rle1_len, stats.total_rle1_lens / stats.rle1_divisor, stats.max_rle1_len, stats.rle1_divisor);

+      }

+      else {

+         fprintf(stdout, "RLE1 lens: none\n");

+      }

+      if (stats.rle2_divisor > 0) {

+         fprintf(stdout, "RLE2 lens: min: %d avg: %d max: %d count: %d\n", stats.min_rle2_len, stats.total_rle2_lens / stats.rle2_divisor, stats.max_rle2_len, stats.rle2_divisor);

+      }

+      else {

+         fprintf(stdout, "RLE2 lens: none\n");

+      }

+   }

+   return 0;

+}

+

+/*---------------------------------------------------------------------------*/

+

+static int do_decompress(const char *pszInFilename, const char *pszOutFilename, const char *pszDictionaryFilename, const unsigned int nOptions, int nFormatVersion) {

+   long long nStartTime = 0LL, nEndTime = 0LL;

+   long long nOriginalSize = 0LL, nCompressedSize = 0LL;

+   lzsa_status_t nStatus;

+   int nFlags;

+

+   nFlags = 0;

+   if (nOptions & OPT_RAW)

+      nFlags |= LZSA_FLAG_RAW_BLOCK;

+   if (nOptions & OPT_RAW_BACKWARD)

+      nFlags |= LZSA_FLAG_RAW_BACKWARD;

+

+   if (nOptions & OPT_VERBOSE) {

+      nStartTime = do_get_time();

+   }

+

+   nStatus = lzsa_decompress_file(pszInFilename, pszOutFilename, pszDictionaryFilename, nFlags, nFormatVersion, &nOriginalSize, &nCompressedSize);

+

+   switch (nStatus) {

+   case LZSA_ERROR_SRC: fprintf(stderr, "error reading '%s'\n", pszInFilename); break;

+   case LZSA_ERROR_DST: fprintf(stderr, "error writing '%s'\n", pszOutFilename); break;

+   case LZSA_ERROR_DICTIONARY: fprintf(stderr, "error reading dictionary '%s'\n", pszDictionaryFilename); break;

+   case LZSA_ERROR_MEMORY: fprintf(stderr, "out of memory\n"); break;

+   case LZSA_ERROR_DECOMPRESSION: fprintf(stderr, "internal decompression error\n"); break;

+   case LZSA_ERROR_FORMAT: fprintf(stderr, "invalid magic number or format version in input file\n"); break;

+   case LZSA_OK: break;

+   default: fprintf(stderr, "unknown decompression error %d\n", nStatus); break;

+   }

+

+   if (nStatus) {

+      fprintf(stderr, "decompression error for '%s'\n", pszInFilename);

+      return 100;

+   }

+   else {

+      if (nOptions & OPT_VERBOSE) {

+         nEndTime = do_get_time();

+         double fDelta = ((double)(nEndTime - nStartTime)) / 1000000.0;

+         double fSpeed = ((double)nOriginalSize / 1048576.0) / fDelta;

+         fprintf(stdout, "Decompressed '%s' in %g seconds, %g Mb/s\n",

+            pszInFilename, fDelta, fSpeed);

+      }

+

+      return 0;

+   }

+}

+

+/*---------------------------------------------------------------------------*/

+

+typedef struct {

+   FILE *f;

+   void *pCompareDataBuf;

+   size_t nCompareDataSize;

+} compare_stream_t;

+

+void comparestream_close(lzsa_stream_t *stream) {

+   if (stream->obj) {

+      compare_stream_t *pCompareStream = (compare_stream_t *)stream->obj;

+      if (pCompareStream->pCompareDataBuf) {

+         free(pCompareStream->pCompareDataBuf);

+         pCompareStream->pCompareDataBuf = NULL;

+      }

+      

+      fclose(pCompareStream->f);

+      free(pCompareStream);

+

+      stream->obj = NULL;

+      stream->read = NULL;

+      stream->write = NULL;

+      stream->eof = NULL;

+      stream->close = NULL;

+   }

+}

+

+size_t comparestream_read(lzsa_stream_t *stream, void *ptr, size_t size) {

+   return 0;

+}

+

+size_t comparestream_write(lzsa_stream_t *stream, void *ptr, size_t size) {

+   compare_stream_t *pCompareStream = (compare_stream_t *)stream->obj;

+

+   if (!pCompareStream->pCompareDataBuf || pCompareStream->nCompareDataSize < size) {

+      pCompareStream->nCompareDataSize = size;

+      pCompareStream->pCompareDataBuf = realloc(pCompareStream->pCompareDataBuf, pCompareStream->nCompareDataSize);

+      if (!pCompareStream->pCompareDataBuf)

+         return 0;

+   }

+

+   size_t nReadBytes = fread(pCompareStream->pCompareDataBuf, 1, size, pCompareStream->f);

+   if (nReadBytes != size) {

+      return 0;

+   }

+

+   if (memcmp(ptr, pCompareStream->pCompareDataBuf, size)) {

+      return 0;

+   }

+

+   return size;

+}

+

+int comparestream_eof(lzsa_stream_t *stream) {

+   compare_stream_t *pCompareStream = (compare_stream_t *)stream->obj;

+   return feof(pCompareStream->f);

+}

+

+int comparestream_open(lzsa_stream_t *stream, const char *pszCompareFilename, const char *pszMode) {

+   compare_stream_t *pCompareStream;

+

+   pCompareStream = (compare_stream_t*)malloc(sizeof(compare_stream_t));

+   if (!pCompareStream)

+      return -1;

+

+   pCompareStream->pCompareDataBuf = NULL;

+   pCompareStream->nCompareDataSize = 0;

+   pCompareStream->f = (FILE*)fopen(pszCompareFilename, pszMode);

+

+   if (pCompareStream->f) {

+      stream->obj = pCompareStream;

+      stream->read = comparestream_read;

+      stream->write = comparestream_write;

+      stream->eof = comparestream_eof;

+      stream->close = comparestream_close;

+      return 0;

+   }

+   else {

+      free(pCompareStream);

+      return -1;

+   }

+}

+

+static int do_compare(const char *pszInFilename, const char *pszOutFilename, const char *pszDictionaryFilename, const unsigned int nOptions, int nFormatVersion) {

+   lzsa_stream_t inStream, compareStream;

+   long long nStartTime = 0LL, nEndTime = 0LL;

+   long long nOriginalSize = 0LL;

+   long long nCompressedSize = 0LL;

+   void *pDictionaryData = NULL;

+   int nDictionaryDataSize = 0;

+   lzsa_status_t nStatus;

+   int nFlags;

+

+   if (lzsa_filestream_open(&inStream, pszInFilename, "rb") < 0) {

+      fprintf(stderr, "error opening compressed input file\n");

+      return 100;

+   }

+

+   if (comparestream_open(&compareStream, pszOutFilename, "rb") < 0) {

+      fprintf(stderr, "error opening original uncompressed file\n");

+      inStream.close(&inStream);

+      return 100;

+   }

+

+   nStatus = lzsa_dictionary_load(pszDictionaryFilename, &pDictionaryData, &nDictionaryDataSize);

+   if (nStatus) {

+      compareStream.close(&compareStream);

+      inStream.close(&inStream);

+      fprintf(stderr, "error reading dictionary '%s'\n", pszDictionaryFilename);

+      return 100;

+   }

+

+   nFlags = 0;

+   if (nOptions & OPT_RAW)

+      nFlags |= LZSA_FLAG_RAW_BLOCK;

+   if (nOptions & OPT_RAW_BACKWARD)

+      nFlags |= LZSA_FLAG_RAW_BACKWARD;

+

+   if (nOptions & OPT_VERBOSE) {

+      nStartTime = do_get_time();

+   }

+

+   nStatus = lzsa_decompress_stream(&inStream, &compareStream, pDictionaryData, nDictionaryDataSize, nFlags, nFormatVersion, &nOriginalSize, &nCompressedSize);

+

+   switch (nStatus) {

+   case LZSA_ERROR_SRC: fprintf(stderr, "error reading '%s'\n", pszInFilename); break;

+   case LZSA_ERROR_DST: fprintf(stderr, "error comparing compressed file '%s' with original '%s'\n", pszInFilename, pszOutFilename); break;

+   case LZSA_ERROR_MEMORY: fprintf(stderr, "out of memory\n"); break;

+   case LZSA_ERROR_DECOMPRESSION: fprintf(stderr, "internal decompression error\n"); break;

+   case LZSA_ERROR_FORMAT: fprintf(stderr, "invalid magic number or format version in input file\n"); break;

+   case LZSA_OK: break;

+   default: fprintf(stderr, "unknown decompression error %d\n", nStatus); break;

+   }

+

+   lzsa_dictionary_free(&pDictionaryData);

+   compareStream.close(&compareStream);

+   inStream.close(&inStream);

+

+   if (nStatus) {

+      return 100;

+   }

+   else {

+      if (nOptions & OPT_VERBOSE) {

+         nEndTime = do_get_time();

+         double fDelta = ((double)(nEndTime - nStartTime)) / 1000000.0;

+         double fSpeed = ((double)nOriginalSize / 1048576.0) / fDelta;

+         fprintf(stdout, "Compared '%s' in %g seconds, %g Mb/s\n",

+            pszInFilename, fDelta, fSpeed);

+      }

+

+      return 0;

+   }

+}

+

+/*---------------------------------------------------------------------------*/

+

+static void generate_compressible_data(unsigned char *pBuffer, size_t nBufferSize, int nMinMatchSize, unsigned int nSeed, int nNumLiteralValues, float fMatchProbability) {

+   size_t nIndex = 0;

+   int nMatchProbability = (int)(fMatchProbability * 1023.0f);

+

+   srand(nSeed);

+   

+   if (nIndex >= nBufferSize) return;

+   pBuffer[nIndex++] = rand() % nNumLiteralValues;

+

+   while (nIndex < nBufferSize) {

+      if ((rand() & 1023) >= nMatchProbability) {

+         size_t nLiteralCount = rand() & 127;

+         if (nLiteralCount > (nBufferSize - nIndex))

+            nLiteralCount = nBufferSize - nIndex;

+

+         while (nLiteralCount--)

+            pBuffer[nIndex++] = rand() % nNumLiteralValues;

+      }

+      else {

+         size_t nMatchLength = nMinMatchSize + (rand() & 1023);

+         size_t nMatchOffset;

+

+         if (nMatchLength > (nBufferSize - nIndex))

+            nMatchLength = nBufferSize - nIndex;

+         if (nMatchLength > nIndex)

+            nMatchLength = nIndex;

+

+         if (nMatchLength < nIndex)

+            nMatchOffset = rand() % (nIndex - nMatchLength);

+         else

+            nMatchOffset = 0;

+

+         while (nMatchLength--) {

+            pBuffer[nIndex] = pBuffer[nIndex - nMatchOffset];

+            nIndex++;

+         }

+      }

+   }

+}

+

+static void xor_data(unsigned char *pBuffer, size_t nBufferSize, unsigned int nSeed, float fXorProbability) {

+   size_t nIndex = 0;

+   int nXorProbability = (int)(fXorProbability * 1023.0f);

+

+   srand(nSeed);

+

+   if (nIndex >= nBufferSize) return;

+

+   while (nIndex < nBufferSize) {

+      if ((rand() & 1023) < nXorProbability) {

+         pBuffer[nIndex] ^= 0xff;

+      }

+      nIndex++;

+   }

+}

+

+static int do_self_test(const unsigned int nOptions, const int nMinMatchSize, int nFormatVersion) {

+   unsigned char *pGeneratedData;

+   unsigned char *pCompressedData;

+   unsigned char *pTmpCompressedData;

+   unsigned char *pTmpDecompressedData;

+   size_t nGeneratedDataSize;

+   size_t nMaxCompressedDataSize;

+   unsigned int nSeed = 123;

+   int nFlags;

+   int i;

+

+   nFlags = 0;

+   if (nOptions & OPT_FAVOR_RATIO)

+      nFlags |= LZSA_FLAG_FAVOR_RATIO;

+   if (nOptions & OPT_RAW)

+      nFlags |= LZSA_FLAG_RAW_BLOCK;

+   if (nOptions & OPT_RAW_BACKWARD)

+      nFlags |= LZSA_FLAG_RAW_BACKWARD;

+

+   pGeneratedData = (unsigned char*)malloc(4 * BLOCK_SIZE);

+   if (!pGeneratedData) {

+      fprintf(stderr, "out of memory, %d bytes needed\n", 4 * BLOCK_SIZE);

+      return 100;

+   }

+

+   nMaxCompressedDataSize = lzsa_get_max_compressed_size_inmem(4 * BLOCK_SIZE);

+   pCompressedData = (unsigned char*)malloc(nMaxCompressedDataSize);

+   if (!pCompressedData) {

+      free(pGeneratedData);

+      pGeneratedData = NULL;

+

+      fprintf(stderr, "out of memory, %zd bytes needed\n", nMaxCompressedDataSize);

+      return 100;

+   }

+

+   pTmpCompressedData = (unsigned char*)malloc(nMaxCompressedDataSize);

+   if (!pTmpCompressedData) {

+      free(pCompressedData);

+      pCompressedData = NULL;

+      free(pGeneratedData);

+      pGeneratedData = NULL;

+

+      fprintf(stderr, "out of memory, %zd bytes needed\n", nMaxCompressedDataSize);

+      return 100;

+   }

+

+   pTmpDecompressedData = (unsigned char*)malloc(4 * BLOCK_SIZE);

+   if (!pTmpDecompressedData) {

+      free(pTmpCompressedData);

+      pTmpCompressedData = NULL;

+      free(pCompressedData);

+      pCompressedData = NULL;

+      free(pGeneratedData);

+      pGeneratedData = NULL;

+

+      fprintf(stderr, "out of memory, %d bytes needed\n", 4 * BLOCK_SIZE);

+      return 100;

+   }

+

+   memset(pGeneratedData, 0, 4 * BLOCK_SIZE);

+   memset(pCompressedData, 0, nMaxCompressedDataSize);

+   memset(pTmpCompressedData, 0, nMaxCompressedDataSize);

+

+   /* Test compressing with a too small buffer to do anything, expect to fail cleanly */

+   for (i = 0; i < 12; i++) {

+      generate_compressible_data(pGeneratedData, i, nMinMatchSize, nSeed, 256, 0.5f);

+      lzsa_compress_inmem(pGeneratedData, pCompressedData, i, i, nFlags, nMinMatchSize, nFormatVersion);

+   }

+

+   size_t nDataSizeStep = 128;

+   float fProbabilitySizeStep = 0.0005f;

+

+   for (nGeneratedDataSize = 1024; nGeneratedDataSize <= ((size_t)((nOptions & OPT_RAW) ? BLOCK_SIZE : (4 * BLOCK_SIZE))); nGeneratedDataSize += nDataSizeStep) {

+      float fMatchProbability;

+

+      fprintf(stdout, "size %zd", nGeneratedDataSize);

+      for (fMatchProbability = 0; fMatchProbability <= 0.995f; fMatchProbability += fProbabilitySizeStep) {

+         int nNumLiteralValues[12] = { 1, 2, 3, 15, 30, 56, 96, 137, 178, 191, 255, 256 };

+         float fXorProbability;

+

+         fputc('.', stdout);

+         fflush(stdout);

+

+         for (i = 0; i < 12; i++) {

+            /* Generate data to compress */

+            generate_compressible_data(pGeneratedData, nGeneratedDataSize, nMinMatchSize, nSeed, nNumLiteralValues[i], fMatchProbability);

+

+            /* Try to compress it, expected to succeed */

+            size_t nActualCompressedSize = lzsa_compress_inmem(pGeneratedData, pCompressedData, nGeneratedDataSize, lzsa_get_max_compressed_size_inmem(nGeneratedDataSize),

+               nFlags, nMinMatchSize, nFormatVersion);

+            if (nActualCompressedSize == -1 || (int)nActualCompressedSize < (lzsa_get_header_size() + lzsa_get_frame_size() + lzsa_get_frame_size() /* footer */)) {

+               free(pTmpDecompressedData);

+               pTmpDecompressedData = NULL;

+               free(pTmpCompressedData);

+               pTmpCompressedData = NULL;

+               free(pCompressedData);

+               pCompressedData = NULL;

+               free(pGeneratedData);

+               pGeneratedData = NULL;

+

+               fprintf(stderr, "\nself-test: error compressing size %zd, seed %d, match probability %f, literals range %d\n", nGeneratedDataSize, nSeed, fMatchProbability, nNumLiteralValues[i]);

+               return 100;

+            }

+

+            /* Try to decompress it, expected to succeed */

+            size_t nActualDecompressedSize;

+            int nDecFormatVersion = nFormatVersion;

+            nActualDecompressedSize = lzsa_decompress_inmem(pCompressedData, pTmpDecompressedData, nActualCompressedSize, nGeneratedDataSize, nFlags, &nDecFormatVersion);

+            if (nActualDecompressedSize == -1) {

+               free(pTmpDecompressedData);

+               pTmpDecompressedData = NULL;

+               free(pTmpCompressedData);

+               pTmpCompressedData = NULL;

+               free(pCompressedData);

+               pCompressedData = NULL;

+               free(pGeneratedData);

+               pGeneratedData = NULL;

+

+               fprintf(stderr, "\nself-test: error decompressing size %zd, seed %d, match probability %f, literals range %d\n", nGeneratedDataSize, nSeed, fMatchProbability, nNumLiteralValues[i]);

+               return 100;

+            }

+

+            if (memcmp(pGeneratedData, pTmpDecompressedData, nGeneratedDataSize)) {

+               free(pTmpDecompressedData);

+               pTmpDecompressedData = NULL;

+               free(pTmpCompressedData);

+               pTmpCompressedData = NULL;

+               free(pCompressedData);

+               pCompressedData = NULL;

+               free(pGeneratedData);

+               pGeneratedData = NULL;

+

+               fprintf(stderr, "\nself-test: error comparing decompressed and original data, size %zd, seed %d, match probability %f, literals range %d\n", nGeneratedDataSize, nSeed, fMatchProbability, nNumLiteralValues[i]);

+               return 100;

+            }

+

+            /* Try to decompress corrupted data, expected to fail cleanly, without crashing or corrupting memory outside the output buffer */

+            for (fXorProbability = 0.05f; fXorProbability <= 0.5f; fXorProbability += 0.05f) {

+               memcpy(pTmpCompressedData, pCompressedData, nActualCompressedSize);

+               xor_data(pTmpCompressedData + lzsa_get_header_size() + lzsa_get_frame_size(), nActualCompressedSize - lzsa_get_header_size() - lzsa_get_frame_size() - lzsa_get_frame_size() /* footer */, nSeed, fXorProbability);

+               nDecFormatVersion = nFormatVersion;

+               lzsa_decompress_inmem(pTmpCompressedData, pGeneratedData, nActualCompressedSize, nGeneratedDataSize, nFlags, &nDecFormatVersion);

+            }

+         }

+

+         nSeed++;

+      }

+

+      fputc(10, stdout);

+      fflush(stdout);

+

+      nDataSizeStep <<= 1;

+      if (nDataSizeStep > (128 * 4096))

+         nDataSizeStep = 128 * 4096;

+      fProbabilitySizeStep *= 1.25;

+      if (fProbabilitySizeStep > (0.0005f * 4096))

+         fProbabilitySizeStep = 0.0005f * 4096;

+   }

+

+   free(pTmpDecompressedData);

+   pTmpDecompressedData = NULL;

+

+   free(pTmpCompressedData);

+   pTmpCompressedData = NULL;

+

+   free(pCompressedData);

+   pCompressedData = NULL;

+

+   free(pGeneratedData);

+   pGeneratedData = NULL;

+

+   fprintf(stdout, "All tests passed.\n");

+   return 0;

+}

+

+/*---------------------------------------------------------------------------*/

+

+static int do_compr_benchmark(const char *pszInFilename, const char *pszOutFilename, const char *pszDictionaryFilename, const unsigned int nOptions, const int nMinMatchSize, int nFormatVersion) {

+   size_t nFileSize, nMaxCompressedSize;

+   unsigned char *pFileData;

+   unsigned char *pCompressedData;

+   int nFlags;

+   int i;

+

+   nFlags = 0;

+   if (nOptions & OPT_FAVOR_RATIO)

+      nFlags |= LZSA_FLAG_FAVOR_RATIO;

+   if (nOptions & OPT_RAW)

+      nFlags |= LZSA_FLAG_RAW_BLOCK;

+   if (nOptions & OPT_RAW_BACKWARD)

+      nFlags |= LZSA_FLAG_RAW_BACKWARD;

+

+   if (pszDictionaryFilename) {

+      fprintf(stderr, "in-memory benchmarking does not support dictionaries\n");

+      return 100;

+   }

+

+   /* Read the whole original file in memory */

+

+   FILE *f_in = fopen(pszInFilename, "rb");

+   if (!f_in) {

+      fprintf(stderr, "error opening '%s' for reading\n", pszInFilename);

+      return 100;

+   }

+

+   fseek(f_in, 0, SEEK_END);

+   nFileSize = (size_t)ftell(f_in);

+   fseek(f_in, 0, SEEK_SET);

+

+   pFileData = (unsigned char*)malloc(nFileSize);

+   if (!pFileData) {

+      fclose(f_in);

+      fprintf(stderr, "out of memory for reading '%s', %zd bytes needed\n", pszInFilename, nFileSize);

+      return 100;

+   }

+

+   if (fread(pFileData, 1, nFileSize, f_in) != nFileSize) {

+      free(pFileData);

+      fclose(f_in);

+      fprintf(stderr, "I/O error while reading '%s'\n", pszInFilename);

+      return 100;

+   }

+

+   fclose(f_in);

+

+   /* Allocate max compressed size */

+

+   nMaxCompressedSize = lzsa_get_max_compressed_size_inmem(nFileSize);

+

+   pCompressedData = (unsigned char*)malloc(nMaxCompressedSize + 2048);

+   if (!pCompressedData) {

+      free(pFileData);

+      fprintf(stderr, "out of memory for compressing '%s', %zd bytes needed\n", pszInFilename, nMaxCompressedSize);

+      return 100;

+   }

+

+   memset(pCompressedData + 1024, 0, nMaxCompressedSize);

+

+   long long nBestCompTime = -1;

+

+   size_t nActualCompressedSize = 0;

+   size_t nRightGuardPos = nMaxCompressedSize;

+

+   for (i = 0; i < 5; i++) {

+      unsigned char nGuard = 0x33 + i;

+      int j;

+

+      /* Write guard bytes around the output buffer, to help check for writes outside of it by the compressor */

+      memset(pCompressedData, nGuard, 1024);

+      memset(pCompressedData + 1024 + nRightGuardPos, nGuard, 1024);

+

+      long long t0 = do_get_time();

+      nActualCompressedSize = lzsa_compress_inmem(pFileData, pCompressedData + 1024, nFileSize, nRightGuardPos, nFlags, nMinMatchSize, nFormatVersion);

+      long long t1 = do_get_time();

+      if (nActualCompressedSize == -1) {

+         free(pCompressedData);

+         free(pFileData);

+         fprintf(stderr, "compression error\n");

+         return 100;

+      }

+

+      long long nCurDecTime = t1 - t0;

+      if (nBestCompTime == -1 || nBestCompTime > nCurDecTime)

+         nBestCompTime = nCurDecTime;

+

+      /* Check guard bytes before the output buffer */

+      for (j = 0; j < 1024; j++) {

+         if (pCompressedData[j] != nGuard) {

+            free(pCompressedData);

+            free(pFileData);

+            fprintf(stderr, "error, wrote outside of output buffer at %d!\n", j - 1024);

+            return 100;

+         }

+      }

+

+      /* Check guard bytes after the output buffer */

+      for (j = 0; j < 1024; j++) {

+         if (pCompressedData[1024 + nRightGuardPos + j] != nGuard) {

+            free(pCompressedData);

+            free(pFileData);

+            fprintf(stderr, "error, wrote outside of output buffer at %d!\n", j);

+            return 100;

+         }

+      }

+

+      nRightGuardPos = nActualCompressedSize;

+   }

+

+   if (pszOutFilename) {

+      FILE *f_out;

+

+      /* Write whole compressed file out */

+

+      f_out = fopen(pszOutFilename, "wb");

+      if (f_out) {

+         fwrite(pCompressedData + 1024, 1, nActualCompressedSize, f_out);

+         fclose(f_out);

+      }

+   }

+

+   free(pCompressedData);

+   free(pFileData);

+

+   fprintf(stdout, "compressed size: %zd bytes\n", nActualCompressedSize);

+   fprintf(stdout, "compression time: %lld microseconds (%g Mb/s)\n", nBestCompTime, ((double)nActualCompressedSize / 1024.0) / ((double)nBestCompTime / 1000.0));

+

+   return 0;

+}

+

+/*---------------------------------------------------------------------------*/

+

+static int do_dec_benchmark(const char *pszInFilename, const char *pszOutFilename, const char *pszDictionaryFilename, const unsigned int nOptions, int nFormatVersion) {

+   size_t nFileSize, nMaxDecompressedSize;

+   unsigned char *pFileData;

+   unsigned char *pDecompressedData;

+   int nFlags;

+   int i;

+

+   nFlags = 0;

+   if (nOptions & OPT_RAW)

+      nFlags |= LZSA_FLAG_RAW_BLOCK;

+   if (nOptions & OPT_RAW_BACKWARD)

+      nFlags |= LZSA_FLAG_RAW_BACKWARD;

+

+   if (pszDictionaryFilename) {

+      fprintf(stderr, "in-memory benchmarking does not support dictionaries\n");

+      return 100;

+   }

+

+   /* Read the whole compressed file in memory */

+

+   FILE *f_in = fopen(pszInFilename, "rb");

+   if (!f_in) {

+      fprintf(stderr, "error opening '%s' for reading\n", pszInFilename);

+      return 100;

+   }

+

+   fseek(f_in, 0, SEEK_END);

+   nFileSize = (size_t)ftell(f_in);

+   fseek(f_in, 0, SEEK_SET);

+

+   pFileData = (unsigned char*)malloc(nFileSize);

+   if (!pFileData) {

+      fclose(f_in);

+      fprintf(stderr, "out of memory for reading '%s', %zd bytes needed\n", pszInFilename, nFileSize);

+      return 100;

+   }

+

+   if (fread(pFileData, 1, nFileSize, f_in) != nFileSize) {

+      free(pFileData);

+      fclose(f_in);

+      fprintf(stderr, "I/O error while reading '%s'\n", pszInFilename);

+      return 100;

+   }

+

+   fclose(f_in);

+

+   /* Allocate max decompressed size */

+

+   if (nOptions & OPT_RAW)

+      nMaxDecompressedSize = 65536;

+   else

+      nMaxDecompressedSize = lzsa_get_max_decompressed_size_inmem(pFileData, nFileSize);

+   if (nMaxDecompressedSize == -1) {

+      free(pFileData);

+      fprintf(stderr, "invalid compressed format for file '%s'\n", pszInFilename);

+      return 100;

+   }

+

+   pDecompressedData = (unsigned char*)malloc(nMaxDecompressedSize);

+   if (!pDecompressedData) {

+      free(pFileData);

+      fprintf(stderr, "out of memory for decompressing '%s', %zd bytes needed\n", pszInFilename, nMaxDecompressedSize);

+      return 100;

+   }

+

+   memset(pDecompressedData, 0, nMaxDecompressedSize);

+

+   long long nBestDecTime = -1;

+

+   size_t nActualDecompressedSize = 0;

+   for (i = 0; i < 50; i++) {

+      long long t0 = do_get_time();

+      nActualDecompressedSize = lzsa_decompress_inmem(pFileData, pDecompressedData, nFileSize, nMaxDecompressedSize, nFlags, &nFormatVersion);

+      long long t1 = do_get_time();

+      if (nActualDecompressedSize == -1) {

+         free(pDecompressedData);

+         free(pFileData);

+         fprintf(stderr, "decompression error\n");

+         return 100;

+      }

+

+      long long nCurDecTime = t1 - t0;

+      if (nBestDecTime == -1 || nBestDecTime > nCurDecTime)

+         nBestDecTime = nCurDecTime;

+   }

+

+   if (pszOutFilename) {

+      FILE *f_out;

+

+      /* Write whole decompressed file out */

+

+      f_out = fopen(pszOutFilename, "wb");

+      if (f_out) {

+         fwrite(pDecompressedData, 1, nActualDecompressedSize, f_out);

+         fclose(f_out);

+      }

+   }

+

+   free(pDecompressedData);

+   free(pFileData);

+

+   fprintf(stdout, "format: LZSA%d\n", nFormatVersion);

+   fprintf(stdout, "decompressed size: %zd bytes\n", nActualDecompressedSize);

+   fprintf(stdout, "decompression time: %lld microseconds (%g Mb/s)\n", nBestDecTime, ((double)nActualDecompressedSize / 1024.0) / ((double)nBestDecTime / 1000.0));

+

+   return 0;

+}

+

+/*---------------------------------------------------------------------------*/

+

+int main(int argc, char **argv) {

+   int i;

+   const char *pszInFilename = NULL;

+   const char *pszOutFilename = NULL;

+   const char *pszDictionaryFilename = NULL;

+   int nArgsError = 0;

+   int nCommandDefined = 0;

+   int nVerifyCompression = 0;

+   int nMinMatchDefined = 0;

+   int nFormatVersionDefined = 0;

+   char cCommand = 'z';

+   int nMinMatchSize = 0;

+   unsigned int nOptions = OPT_FAVOR_RATIO;

+   int nFormatVersion = 1;

+

+   for (i = 1; i < argc; i++) {

+      if (!strcmp(argv[i], "-d")) {

+         if (!nCommandDefined) {

+            nCommandDefined = 1;

+            cCommand = 'd';

+         }

+         else

+            nArgsError = 1;

+      }

+      else if (!strcmp(argv[i], "-z")) {

+         if (!nCommandDefined) {

+            nCommandDefined = 1;

+            cCommand = 'z';

+         }

+         else

+            nArgsError = 1;

+      }

+      else if (!strcmp(argv[i], "-c")) {

+         if (!nVerifyCompression) {

+            nVerifyCompression = 1;

+         }

+         else

+            nArgsError = 1;

+      }

+      else if (!strcmp(argv[i], "-cbench")) {

+         if (!nCommandDefined) {

+            nCommandDefined = 1;

+            cCommand = 'B';

+         }

+         else

+            nArgsError = 1;

+      }

+      else if (!strcmp(argv[i], "-dbench")) {

+         if (!nCommandDefined) {

+            nCommandDefined = 1;

+            cCommand = 'b';

+         }

+         else

+            nArgsError = 1;

+      }

+      else if (!strcmp(argv[i], "-test")) {

+         if (!nCommandDefined) {

+            nCommandDefined = 1;

+            cCommand = 't';

+         }

+         else

+            nArgsError = 1;

+      }

+      else if (!strcmp(argv[i], "-D")) {

+         if (!pszDictionaryFilename && (i + 1) < argc) {

+            pszDictionaryFilename = argv[i + 1];

+            i++;

+         }

+         else

+            nArgsError = 1;

+      }

+      else if (!strncmp(argv[i], "-D", 2)) {

+         if (!pszDictionaryFilename) {

+            pszDictionaryFilename = argv[i] + 2;

+         }

+         else

+            nArgsError = 1;

+      }

+      else if (!strcmp(argv[i], "-m")) {

+         if (!nMinMatchDefined && (i + 1) < argc) {

+            char *pEnd = NULL;

+            nMinMatchSize = (int)strtol(argv[i + 1], &pEnd, 10);

+            if (pEnd && pEnd != argv[i + 1] && (nMinMatchSize >= 2 && nMinMatchSize <= 5)) {

+               i++;

+               nMinMatchDefined = 1;

+               nOptions &= (~OPT_FAVOR_RATIO);

+            }

+            else {

+               nArgsError = 1;

+            }

+         }

+         else

+            nArgsError = 1;

+      }

+      else if (!strncmp(argv[i], "-m", 2)) {

+         if (!nMinMatchDefined) {

+            char *pEnd = NULL;

+            nMinMatchSize = (int)strtol(argv[i] + 2, &pEnd, 10);

+            if (pEnd && pEnd != (argv[i]+2) && (nMinMatchSize >= 2 && nMinMatchSize <= 5)) {

+               nMinMatchDefined = 1;

+               nOptions &= (~OPT_FAVOR_RATIO);

+            }

+            else {

+               nArgsError = 1;

+            }

+         }

+         else

+            nArgsError = 1;

+      }

+      else if (!strcmp(argv[i], "--prefer-ratio")) {

+         if (!nMinMatchDefined) {

+            nMinMatchSize = 0;

+            nMinMatchDefined = 1;

+         }

+         else

+            nArgsError = 1;

+      }

+      else if (!strcmp(argv[i], "--prefer-speed")) {

+         if (!nMinMatchDefined) {

+            nMinMatchSize = 3;

+            nOptions &= (~OPT_FAVOR_RATIO);

+            nMinMatchDefined = 1;

+         }

+         else

+            nArgsError = 1;

+      }

+      else if (!strcmp(argv[i], "-f")) {

+         if (!nFormatVersionDefined && (i + 1) < argc) {

+            char *pEnd = NULL;

+            nFormatVersion = (int)strtol(argv[i + 1], &pEnd, 10);

+            if (pEnd && pEnd != argv[i + 1] && (nFormatVersion >= 1 && nFormatVersion <= 2)) {

+               i++;

+               nFormatVersionDefined = 1;

+            }

+            else {

+               nArgsError = 1;

+            }

+         }

+         else

+            nArgsError = 1;

+      }

+      else if (!strncmp(argv[i], "-f", 2)) {

+         if (!nFormatVersionDefined) {

+            char *pEnd = NULL;

+            nFormatVersion = (int)strtol(argv[i] + 2, &pEnd, 10);

+            if (pEnd && pEnd != (argv[i] + 2) && (nFormatVersion >= 1 && nFormatVersion <= 2)) {

+               nFormatVersionDefined = 1;

+            }

+            else {

+               nArgsError = 1;

+            }

+         }

+         else

+            nArgsError = 1;

+      }

+      else if (!strcmp(argv[i], "-v")) {

+         if ((nOptions & OPT_VERBOSE) == 0) {

+            nOptions |= OPT_VERBOSE;

+         }

+         else

+            nArgsError = 1;

+      }

+      else if (!strcmp(argv[i], "-r")) {

+         if ((nOptions & OPT_RAW) == 0) {

+            nOptions |= OPT_RAW;

+         }

+         else

+            nArgsError = 1;

+      }

+      else if (!strcmp(argv[i], "-b")) {

+         if ((nOptions & OPT_RAW_BACKWARD) == 0) {

+            nOptions |= OPT_RAW_BACKWARD;

+         }

+         else

+            nArgsError = 1;

+      }

+      else if (!strcmp(argv[i], "-stats")) {

+      if ((nOptions & OPT_STATS) == 0) {

+         nOptions |= OPT_STATS;

+      }

+      else

+         nArgsError = 1;

+      }

+      else {

+         if (!pszInFilename)

+            pszInFilename = argv[i];

+         else {

+            if (!pszOutFilename)

+               pszOutFilename = argv[i];

+            else

+               nArgsError = 1;

+         }

+      }

+   }

+

+   if (!nArgsError && (nOptions & OPT_RAW_BACKWARD) && !(nOptions & OPT_RAW)) {

+      fprintf(stderr, "error: -b (compress backwards) requires -r (raw block format)\n");

+      return 100;

+   }

+

+   if (!nArgsError && cCommand == 't') {

+      return do_self_test(nOptions, nMinMatchSize, nFormatVersion);

+   }

+

+   if (nArgsError || !pszInFilename || !pszOutFilename) {

+      fprintf(stderr, "lzsa command-line tool v" TOOL_VERSION " by Emmanuel Marty and spke\n");

+      fprintf(stderr, "usage: %s [-c] [-d] [-v] [-r] <infile> <outfile>\n", argv[0]);

+      fprintf(stderr, "       -c: check resulting stream after compressing\n");

+      fprintf(stderr, "       -d: decompress (default: compress)\n");

+      fprintf(stderr, "  -cbench: benchmark in-memory compression\n");

+      fprintf(stderr, "  -dbench: benchmark in-memory decompression\n");

+      fprintf(stderr, "    -test: run automated self-tests\n");

+      fprintf(stderr, "   -stats: show compressed data stats\n");

+      fprintf(stderr, "       -v: be verbose\n");

+      fprintf(stderr, "       -f <value>: LZSA compression format (1-2)\n");

+      fprintf(stderr, "       -r: raw block format (max. 64 Kb files)\n");

+      fprintf(stderr, "       -b: compress backward (requires -r and a backward decompressor)\n");

+      fprintf(stderr, "       -D <filename>: use dictionary file\n");

+      fprintf(stderr, "       -m <value>: minimum match size (3-5) (default: 3)\n");

+      fprintf(stderr, "       --prefer-ratio: favor compression ratio (default)\n");

+      fprintf(stderr, "       --prefer-speed: favor decompression speed (same as -m3)\n");

+      return 100;

+   }

+

+   do_init_time();

+

+   if (cCommand == 'z') {

+      int nResult = do_compress(pszInFilename, pszOutFilename, pszDictionaryFilename, nOptions, nMinMatchSize, nFormatVersion);

+      if (nResult == 0 && nVerifyCompression) {

+         return do_compare(pszOutFilename, pszInFilename, pszDictionaryFilename, nOptions, nFormatVersion);

+      } else {

+         return nResult;

+      }

+   }

+   else if (cCommand == 'd') {

+      return do_decompress(pszInFilename, pszOutFilename, pszDictionaryFilename, nOptions, nFormatVersion);

+   }

+   else if (cCommand == 'B') {

+      return do_compr_benchmark(pszInFilename, pszOutFilename, pszDictionaryFilename, nOptions, nMinMatchSize, nFormatVersion);

+   }

+   else if (cCommand == 'b') {

+      return do_dec_benchmark(pszInFilename, pszOutFilename, pszDictionaryFilename, nOptions, nFormatVersion);

+   }

+   else {

+      return 100;

+   }

+}