DLL support for Windows.

CMakeLists.txt

@@ -2,7 +2,6 @@ CMAKE_MINIMUM_REQUIRED(VERSION 2.8.6)
 INCLUDE(CheckIncludeFiles)
 INCLUDE(TestBigEndian)
 INCLUDE(CheckCSourceCompiles)
-INCLUDE(GenerateExportHeader)
 PROJECT(libaec)
 SET(libaec_VERSION_MAJOR 0)
 SET(libaec_VERSION_MINOR 2)
@@ -83,9 +82,19 @@ CONFIGURE_FILE(
   ${CMAKE_CURRENT_SOURCE_DIR}/config.h.in
   ${CMAKE_CURRENT_BINARY_DIR}/config.h
   )
+ADD_DEFINITIONS("-DHAVE_CONFIG_H")
+
+# Allow the developer to select if Dynamic or Static libraries are built
+OPTION (BUILD_SHARED_LIBS "Build Shared Libraries" OFF)
+SET (LIB_TYPE STATIC)
+IF (BUILD_SHARED_LIBS)
+  # User wants to build Dynamic Libraries,
+  # so change the LIB_TYPE variable to CMake keyword 'SHARED'
+  SET (LIB_TYPE SHARED)
+ENDIF (BUILD_SHARED_LIBS)
 
-SET(BUILD_SHARED_LIBS FALSE)
 INCLUDE_DIRECTORIES("${PROJECT_BINARY_DIR}")
+INCLUDE_DIRECTORIES("${PROJECT_BINARY_DIR}/src")
 INCLUDE_DIRECTORIES("${PROJECT_SOURCE_DIR}/src")
 
 ADD_SUBDIRECTORY(src)

src/CMakeLists.txt

-INCLUDE(GenerateExportHeader)
 SET(libaec_SRCS encode.c encode_accessors.c decode.c)
-ADD_LIBRARY(aec ${libaec_SRCS})
+ADD_LIBRARY(aec ${LIB_TYPE} ${libaec_SRCS})
 SET_TARGET_PROPERTIES(aec PROPERTIES
   VERSION 0
   SOVERSION 0.0
   )
-ADD_LIBRARY(sz sz_compat.c)
+ADD_LIBRARY(sz ${LIB_TYPE} sz_compat.c)
 SET_TARGET_PROPERTIES(sz PROPERTIES
   VERSION 0
   SOVERSION 0.0
   )
 
+TARGET_LINK_LIBRARIES(sz aec)
 IF(WIN32)
-  GENERATE_EXPORT_HEADER(aec
-    BASE_NAME aec
-    EXPORT_MACRO_NAME aec_EXPORT
-    EXPORT_FILE_NAME aec_Export.h
-    STATIC_DEFINE aec_BUILT_AS_STATIC
-    )
-  GENERATE_EXPORT_HEADER(sz
-    BASE_NAME sz
-    EXPORT_MACRO_NAME sz_EXPORT
-    EXPORT_FILE_NAME sz_Export.h
-    STATIC_DEFINE sz_BUILT_AS_STATIC
-    )
+  SET_TARGET_PROPERTIES (aec PROPERTIES DEFINE_SYMBOL "DLL_EXPORT")
+  SET_TARGET_PROPERTIES (sz PROPERTIES DEFINE_SYMBOL "DLL_EXPORT")
 ENDIF(WIN32)
 
-TARGET_LINK_LIBRARIES(sz aec)
-
 ADD_EXECUTABLE(aec_client aec.c)
 SET_TARGET_PROPERTIES(aec_client PROPERTIES OUTPUT_NAME "aec")
 TARGET_LINK_LIBRARIES(aec_client aec)
+
 IF(UNIX)
   ADD_EXECUTABLE(utime EXCLUDE_FROM_ALL utime.c)
 ENDIF(UNIX)

src/decode.c

@@ -51,23 +51,17 @@
  *
  */
 
-#include <config.h>
-
-#if HAVE_STDINT_H
-#include <stdint.h>
-#endif
-
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
-#ifdef HAVE_BSR64
-#include <intrin.h>
-#endif
-
 #include "libaec.h"
 #include "decode.h"
 
+#if HAVE_BSR64
+#  include <intrin.h>
+#endif
+
 #define ROS 5
 
 #define BUFFERSPACE(strm) (strm->avail_in >= strm->state->in_blklen     \

src/decode.h

@@ -52,16 +52,12 @@
  */
 
 #ifndef DECODE_H
-#define DECODE_H
-
-#include <config.h>
+#define DECODE_H 1
 
 #if HAVE_STDINT_H
-# include <stdint.h>
+#  include <stdint.h>
 #endif
 
-#include "libaec.h"
-
 #define M_CONTINUE 1
 #define M_EXIT 0
 #define M_ERROR (-1)

src/encode.c

@@ -51,12 +51,6 @@
  *
  */
 
-#include <config.h>
-
-#if HAVE_STDINT_H
-# include <stdint.h>
-#endif
-
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>

src/encode.h

@@ -52,16 +52,12 @@
  */
 
 #ifndef ENCODE_H
-#define ENCODE_H
-
-#include <config.h>
+#define ENCODE_H 1
 
 #if HAVE_STDINT_H
-# include <stdint.h>
+#  include <stdint.h>
 #endif
 
-#include "libaec.h"
-
 #define M_CONTINUE 1
 #define M_EXIT 0
 #define MIN(a, b) (((a) < (b))? (a): (b))

src/encode_accessors.h

@@ -51,16 +51,12 @@
  */
 
 #ifndef ENCODE_ACCESSORS_H
-#define ENCODE_ACCESSORS_H
-
-#include <config.h>
+#define ENCODE_ACCESSORS_H 1
 
 #if HAVE_STDINT_H
-# include <stdint.h>
+#  include <stdint.h>
 #endif
 
-#include "libaec.h"
-
 uint32_t aec_get_8(struct aec_stream *strm);
 uint32_t aec_get_lsb_16(struct aec_stream *strm);
 uint32_t aec_get_msb_16(struct aec_stream *strm);

src/libaec.h

@@ -51,10 +51,25 @@
  */
 
 #ifndef LIBAEC_H
-#define LIBAEC_H
+#define LIBAEC_H 1
 
 #include <stddef.h>
 
+#if HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#ifdef _WIN32
+#  ifdef DLL_EXPORT
+#    define AEC_SCOPE       __declspec(dllexport)
+#  else
+#    define AEC_SCOPE       extern __declspec(dllimport)
+#  endif
+#endif
+#ifndef AEC_SCOPE
+#  define AEC_SCOPE         extern
+#endif
+
 struct internal_state;
 
 struct aec_stream {
@@ -124,16 +139,16 @@ struct aec_stream {
                                   */
 
 /* Streaming encoding and decoding functions */
-int aec_encode_init(struct aec_stream *strm);
-int aec_encode(struct aec_stream *strm, int flush);
-int aec_encode_end(struct aec_stream *strm);
+AEC_SCOPE int aec_encode_init(struct aec_stream *strm);
+AEC_SCOPE int aec_encode(struct aec_stream *strm, int flush);
+AEC_SCOPE int aec_encode_end(struct aec_stream *strm);
 
-int aec_decode_init(struct aec_stream *strm);
-int aec_decode(struct aec_stream *strm, int flush);
-int aec_decode_end(struct aec_stream *strm);
+AEC_SCOPE int aec_decode_init(struct aec_stream *strm);
+AEC_SCOPE int aec_decode(struct aec_stream *strm, int flush);
+AEC_SCOPE int aec_decode_end(struct aec_stream *strm);
 
 /* Utility functions for encoding or decoding a memory buffer. */
-int aec_buffer_encode(struct aec_stream *strm);
-int aec_buffer_decode(struct aec_stream *strm);
+AEC_SCOPE int aec_buffer_encode(struct aec_stream *strm);
+AEC_SCOPE int aec_buffer_decode(struct aec_stream *strm);
 
 #endif /* LIBAEC_H */

src/sz_compat.c

 #include <stdio.h>
-#include <stddef.h>
-#include <string.h>
 #include <stdlib.h>
+#include <string.h>
 #include "szlib.h"
-#include "libaec.h"
 
 #define NOPTS 129
 

src/szlib.h

 #ifndef SZLIB_H
-#define SZLIB_H
+#define SZLIB_H 1
 
 #include "libaec.h"
 
@@ -30,13 +30,13 @@ typedef struct SZ_com_t_s
     int pixels_per_scanline;
 } SZ_com_t;
 
-int SZ_BufftoBuffCompress(void *dest, size_t *destLen,
+AEC_SCOPE int SZ_BufftoBuffCompress(void *dest, size_t *destLen,
                           const void *source, size_t sourceLen,
                           SZ_com_t *param);
-int SZ_BufftoBuffDecompress(void *dest, size_t *destLen,
+AEC_SCOPE int SZ_BufftoBuffDecompress(void *dest, size_t *destLen,
                             const void *source, size_t sourceLen,
                             SZ_com_t *param);
 
-int SZ_encoder_enabled(void);
+AEC_SCOPE int SZ_encoder_enabled(void);
 
 #endif /* SZLIB_H */

tests/CMakeLists.txt

-ADD_LIBRARY(check_aec check_aec.c)
+ADD_LIBRARY(check_aec STATIC check_aec.c)
+TARGET_LINK_LIBRARIES(check_aec aec)
 
 ADD_EXECUTABLE(check_code_options check_code_options.c)
 TARGET_LINK_LIBRARIES(check_code_options check_aec aec)

tests/check_aec.c

 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include "libaec.h"
 #include "check_aec.h"
 
 static void out_lsb(unsigned char *dest, unsigned int val, int size)

tests/check_aec.h

 #ifndef CHECK_AEC_H
-#define CHECK_AEC_H
+#define CHECK_AEC_H 1
 #include "libaec.h"
 
 struct test_state {

tests/check_buffer_sizes.c

 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include "libaec.h"
 #include "check_aec.h"
 
 #define BUF_SIZE 1024 * 3

tests/check_code_options.c

 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include "libaec.h"
 #include "check_aec.h"
 
 #define BUF_SIZE 1024 * 3

tests/check_long_fs.c

 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include "libaec.h"
 #include "check_aec.h"
 
 #define BUF_SIZE (64 * 4)