Merge pull request #96 from Cyan4973/dev

v0.4.4

.gitignore

@@ -20,3 +20,21 @@
 # Visual solution files
 *.suo
 *.user
+
+# Build results
+[Dd]ebug/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+[Bb]in/
+[Oo]bj/
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile

.travis.yml

@@ -19,6 +19,7 @@ env:
   - ZSTD_TRAVIS_CI_ENV="-C programs test-zstd_nolegacy"
   - ZSTD_TRAVIS_CI_ENV=usan
   - ZSTD_TRAVIS_CI_ENV=asan
+  - ZSTD_TRAVIS_CI_ENV=asan32
   - ZSTD_TRAVIS_CI_ENV="-C programs valgrindTest"  
 
 matrix:

Makefile

@@ -32,7 +32,7 @@
 # ################################################################
 
 # Version number
-export VERSION := 0.4.3
+export VERSION := 0.4.4
 
 PRGDIR  = programs
 ZSTDDIR = lib
@@ -96,6 +96,9 @@ usan: clean
 asan: clean
 	$(MAKE) test CC=clang MOREFLAGS="-g -fsanitize=address"
 
+asan32: clean
+	$(MAKE) -C $(PRGDIR) test32 CC=clang MOREFLAGS="-g -fsanitize=address"
+
 uasan: clean
 	$(MAKE) test CC=clang MOREFLAGS="-g -fsanitize=address -fsanitize=undefined"
 

NEWS

@@ -1,3 +1,8 @@
+v0.4.4
+Fixed : high compression modes for Windows 32 bits
+new : external dictionary API extended to buffered mode and accessible through command line
+new : windows DLL project, thanks to Christophe Chevalier
+
 v0.4.3 :
 new : external dictionary API
 new : zstd-frugal

lib/zstd.h

@@ -43,25 +43,39 @@ extern "C" {
 #include <stddef.h>   /* size_t */
 
 
+/* ***************************************************************
+*  Tuning parameters
+*****************************************************************/
+/*!
+*  ZSTD_DLL_EXPORT :
+*  Enable exporting of functions when building a Windows DLL
+*/
+#if defined(_WIN32) && defined(ZSTD_DLL_EXPORT) && (ZSTD_DLL_EXPORT==1)
+#  define ZSTDLIB_API __declspec(dllexport)
+#else
+#  define ZSTDLIB_API
+#endif
+
+
 /* *************************************
 *  Version
 ***************************************/
 #define ZSTD_VERSION_MAJOR    0    /* for breaking interface changes  */
 #define ZSTD_VERSION_MINOR    4    /* for new (non-breaking) interface capabilities */
 #define ZSTD_VERSION_RELEASE  3    /* for tweaks, bug-fixes, or development */
 #define ZSTD_VERSION_NUMBER  (ZSTD_VERSION_MAJOR *100*100 + ZSTD_VERSION_MINOR *100 + ZSTD_VERSION_RELEASE)
-unsigned ZSTD_versionNumber (void);
+ZSTDLIB_API unsigned ZSTD_versionNumber (void);
 
 
 /* *************************************
 *  Simple functions
 ***************************************/
-size_t ZSTD_compress(   void* dst, size_t maxDstSize,
-                  const void* src, size_t srcSize,
-                         int  compressionLevel);
+ZSTDLIB_API size_t ZSTD_compress(   void* dst, size_t maxDstSize,
+                              const void* src, size_t srcSize,
+                                     int  compressionLevel);
 
-size_t ZSTD_decompress( void* dst, size_t maxOriginalSize,
-                  const void* src, size_t compressedSize);
+ZSTDLIB_API size_t ZSTD_decompress( void* dst, size_t maxOriginalSize,
+                              const void* src, size_t compressedSize);
 
 /**
 ZSTD_compress() :
@@ -83,25 +97,25 @@ ZSTD_decompress() :
 /* *************************************
 *  Tool functions
 ***************************************/
-size_t      ZSTD_compressBound(size_t srcSize);   /** maximum compressed size (worst case scenario) */
+ZSTDLIB_API size_t      ZSTD_compressBound(size_t srcSize);   /** maximum compressed size (worst case scenario) */
 
 /* Error Management */
-unsigned    ZSTD_isError(size_t code);         /** tells if a return value is an error code */
-const char* ZSTD_getErrorName(size_t code);    /** provides error code string */
+ZSTDLIB_API unsigned    ZSTD_isError(size_t code);         /** tells if a return value is an error code */
+ZSTDLIB_API const char* ZSTD_getErrorName(size_t code);    /** provides error code string */
 
 
 /* *************************************
 *  Advanced functions
 ***************************************/
 typedef struct ZSTD_CCtx_s ZSTD_CCtx;   /* incomplete type */
-ZSTD_CCtx* ZSTD_createCCtx(void);
-size_t     ZSTD_freeCCtx(ZSTD_CCtx* cctx);
+ZSTDLIB_API ZSTD_CCtx* ZSTD_createCCtx(void);
+ZSTDLIB_API size_t     ZSTD_freeCCtx(ZSTD_CCtx* cctx);
 
 /**
 ZSTD_compressCCtx() :
     Same as ZSTD_compress(), but requires a ZSTD_CCtx working space already allocated
 */
-size_t ZSTD_compressCCtx(ZSTD_CCtx* ctx, void* dst, size_t maxDstSize, const void* src, size_t srcSize, int compressionLevel);
+ZSTDLIB_API size_t ZSTD_compressCCtx(ZSTD_CCtx* ctx, void* dst, size_t maxDstSize, const void* src, size_t srcSize, int compressionLevel);
 
 
 #if defined (__cplusplus)

lib/zstd_buffered.c

@@ -160,6 +160,12 @@ size_t ZBUFF_compressInit(ZBUFF_CCtx* zbc, int compressionLevel)
 }
 
 
+ZSTDLIB_API size_t ZBUFF_compressWithDictionary(ZBUFF_CCtx* zbc, const void* src, size_t srcSize)
+{
+    ZSTD_compress_insertDictionary(zbc->zc, src, srcSize);
+    return 0;
+}
+
 
 /* *** Compression *** */
 
@@ -327,6 +333,8 @@ struct ZBUFF_DCtx_s {
     size_t outStart;
     size_t outEnd;
     size_t hPos;
+    const char* dict;
+    size_t dictSize;
     ZBUFF_dStage stage;
     unsigned char headerBuffer[ZSTD_frameHeaderSize_max];
 };   /* typedef'd to ZBUFF_DCtx within "zstd_buffered.h" */
@@ -353,17 +361,23 @@ size_t ZBUFF_freeDCtx(ZBUFF_DCtx* zbc)
 }
 
 
-
 /* *** Initialization *** */
 
 size_t ZBUFF_decompressInit(ZBUFF_DCtx* zbc)
 {
     zbc->stage = ZBUFFds_readHeader;
-    zbc->hPos = zbc->inPos = zbc->outStart = zbc->outEnd = 0;
+    zbc->hPos = zbc->inPos = zbc->outStart = zbc->outEnd = zbc->dictSize = 0;
     return ZSTD_resetDCtx(zbc->zc);
 }
 
 
+size_t ZBUFF_decompressWithDictionary(ZBUFF_DCtx* zbc, const void* src, size_t srcSize)
+{
+    zbc->dict = (const char*)src;
+    zbc->dictSize = srcSize;
+    return 0;
+}
+
 
 /* *** Decompression *** */
 
@@ -442,6 +456,8 @@ size_t ZBUFF_decompressContinue(ZBUFF_DCtx* zbc, void* dst, size_t* maxDstSizePt
                         if (zbc->outBuff == NULL) return ERROR(memory_allocation);
                     }
                 }
+                if (zbc->dictSize)
+                    ZSTD_decompress_insertDictionary(zbc->zc, zbc->dict, zbc->dictSize);
                 if (zbc->hPos)
                 {
                     /* some data already loaded into headerBuffer : transfer into inBuff */

lib/zstd_buffered.h

@@ -47,17 +47,32 @@ extern "C" {
 #include <stddef.h>   /* size_t */
 
 
+/* ***************************************************************
+*  Tuning parameters
+*****************************************************************/
+/*!
+*  ZSTD_DLL_EXPORT :
+*  Enable exporting of functions when building a Windows DLL
+*/
+#if defined(_WIN32) && defined(ZSTD_DLL_EXPORT) && (ZSTD_DLL_EXPORT==1)
+#  define ZSTDLIB_API __declspec(dllexport)
+#else
+#  define ZSTDLIB_API
+#endif
+
+
 /* *************************************
 *  Streaming functions
 ***************************************/
 typedef struct ZBUFF_CCtx_s ZBUFF_CCtx;
-ZBUFF_CCtx* ZBUFF_createCCtx(void);
-size_t      ZBUFF_freeCCtx(ZBUFF_CCtx* cctx);
+ZSTDLIB_API ZBUFF_CCtx* ZBUFF_createCCtx(void);
+ZSTDLIB_API size_t      ZBUFF_freeCCtx(ZBUFF_CCtx* cctx);
 
-size_t ZBUFF_compressInit(ZBUFF_CCtx* cctx, int compressionLevel);
-size_t ZBUFF_compressContinue(ZBUFF_CCtx* cctx, void* dst, size_t* maxDstSizePtr, const void* src, size_t* srcSizePtr);
-size_t ZBUFF_compressFlush(ZBUFF_CCtx* cctx, void* dst, size_t* maxDstSizePtr);
-size_t ZBUFF_compressEnd(ZBUFF_CCtx* cctx, void* dst, size_t* maxDstSizePtr);
+ZSTDLIB_API size_t ZBUFF_compressInit(ZBUFF_CCtx* cctx, int compressionLevel);
+ZSTDLIB_API size_t ZBUFF_compressWithDictionary(ZBUFF_CCtx* cctx, const void* src, size_t srcSize);
+ZSTDLIB_API size_t ZBUFF_compressContinue(ZBUFF_CCtx* cctx, void* dst, size_t* maxDstSizePtr, const void* src, size_t* srcSizePtr);
+ZSTDLIB_API size_t ZBUFF_compressFlush(ZBUFF_CCtx* cctx, void* dst, size_t* maxDstSizePtr);
+ZSTDLIB_API size_t ZBUFF_compressEnd(ZBUFF_CCtx* cctx, void* dst, size_t* maxDstSizePtr);
 
 /** ************************************************
 *  Streaming compression
@@ -67,6 +82,9 @@ size_t ZBUFF_compressEnd(ZBUFF_CCtx* cctx, void* dst, size_t* maxDstSizePtr);
 *  Use ZBUFF_compressInit() to start a new compression operation.
 *  ZBUFF_CCtx objects can be reused multiple times.
 *
+*  Optionally, a reference to a static dictionary can be created with ZBUFF_compressWithDictionary()
+*  Note that the dictionary content must remain accessible during the compression process.
+*
 *  Use ZBUFF_compressContinue() repetitively to consume input stream.
 *  *srcSizePtr and *maxDstSizePtr can be any size.
 *  The function will report how many bytes were read or written within *srcSizePtr and *maxDstSizePtr.
@@ -97,11 +115,13 @@ size_t ZBUFF_compressEnd(ZBUFF_CCtx* cctx, void* dst, size_t* maxDstSizePtr);
 
 
 typedef struct ZBUFF_DCtx_s ZBUFF_DCtx;
-ZBUFF_DCtx* ZBUFF_createDCtx(void);
-size_t      ZBUFF_freeDCtx(ZBUFF_DCtx* dctx);
+ZSTDLIB_API ZBUFF_DCtx* ZBUFF_createDCtx(void);
+ZSTDLIB_API size_t      ZBUFF_freeDCtx(ZBUFF_DCtx* dctx);
+
+ZSTDLIB_API size_t ZBUFF_decompressInit(ZBUFF_DCtx* dctx);
+ZSTDLIB_API size_t ZBUFF_decompressWithDictionary(ZBUFF_DCtx* dctx, const void* src, size_t srcSize);
 
-size_t ZBUFF_decompressInit(ZBUFF_DCtx* dctx);
-size_t ZBUFF_decompressContinue(ZBUFF_DCtx* dctx, void* dst, size_t* maxDstSizePtr, const void* src, size_t* srcSizePtr);
+ZSTDLIB_API size_t ZBUFF_decompressContinue(ZBUFF_DCtx* dctx, void* dst, size_t* maxDstSizePtr, const void* src, size_t* srcSizePtr);
 
 /** ************************************************
 *  Streaming decompression
@@ -111,6 +131,10 @@ size_t ZBUFF_decompressContinue(ZBUFF_DCtx* dctx, void* dst, size_t* maxDstSizeP
 *  Use ZBUFF_decompressInit() to start a new decompression operation.
 *  ZBUFF_DCtx objects can be reused multiple times.
 *
+*  Optionally, a reference to a static dictionary can be set, using ZBUFF_decompressWithDictionary()
+*  It must be the same content as the one set during compression phase.
+*  Dictionary content must remain accessible during the decompression process.
+*
 *  Use ZBUFF_decompressContinue() repetitively to consume your input.
 *  *srcSizePtr and *maxDstSizePtr can be any size.
 *  The function will report how many bytes were read or written by modifying *srcSizePtr and *maxDstSizePtr.
@@ -129,15 +153,15 @@ size_t ZBUFF_decompressContinue(ZBUFF_DCtx* dctx, void* dst, size_t* maxDstSizeP
 /* *************************************
 *  Tool functions
 ***************************************/
-unsigned ZBUFF_isError(size_t errorCode);
-const char* ZBUFF_getErrorName(size_t errorCode);
+ZSTDLIB_API unsigned ZBUFF_isError(size_t errorCode);
+ZSTDLIB_API const char* ZBUFF_getErrorName(size_t errorCode);
 
 /** The below functions provide recommended buffer sizes for Compression or Decompression operations.
 *   These sizes are not compulsory, they just tend to offer better latency */
-size_t ZBUFF_recommendedCInSize(void);
-size_t ZBUFF_recommendedCOutSize(void);
-size_t ZBUFF_recommendedDInSize(void);
-size_t ZBUFF_recommendedDOutSize(void);
+ZSTDLIB_API size_t ZBUFF_recommendedCInSize(void);
+ZSTDLIB_API size_t ZBUFF_recommendedCOutSize(void);
+ZSTDLIB_API size_t ZBUFF_recommendedDInSize(void);
+ZSTDLIB_API size_t ZBUFF_recommendedDOutSize(void);
 
 
 #if defined (__cplusplus)

lib/zstd_buffered_static.h

@@ -52,7 +52,7 @@ extern "C" {
 /* *************************************
 *  Advanced Streaming functions
 ***************************************/
-size_t ZBUFF_compressInit_advanced(ZBUFF_CCtx* cctx, ZSTD_parameters params);
+ZSTDLIB_API size_t ZBUFF_compressInit_advanced(ZBUFF_CCtx* cctx, ZSTD_parameters params);
 
 
 #if defined (__cplusplus)