DLL support for Windows.

9 files changed, 45 insertions, 67 deletions

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index bbde090..d956a41 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,36 +1,25 @@
-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)
diff --git a/src/decode.c b/src/decode.c
index d94f1bb..5c9a548 100644
--- a/src/decode.c
+++ b/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     \
diff --git a/src/decode.h b/src/decode.h
index fac60b8..32c4671 100644
--- a/src/decode.h
+++ b/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)
diff --git a/src/encode.c b/src/encode.c
index 4a03b49..6cbc766 100644
--- a/src/encode.c
+++ b/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>
diff --git a/src/encode.h b/src/encode.h
index db96d1c..264cd77 100644
--- a/src/encode.h
+++ b/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))
diff --git a/src/encode_accessors.h b/src/encode_accessors.h
index f94683a..88f9c05 100644
--- a/src/encode_accessors.h
+++ 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);
diff --git a/src/libaec.h b/src/libaec.h
index 9cacd99..49ec078 100644
--- a/src/libaec.h
+++ b/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 */
diff --git a/src/sz_compat.c b/src/sz_compat.c
index 5c70cdf..bac36d2 100644
--- a/src/sz_compat.c
+++ b/src/sz_compat.c
@@ -1,9 +1,7 @@
 #include <stdio.h>
-#include <stddef.h>
-#include <string.h>
 #include <stdlib.h>
+#include <string.h>
 #include "szlib.h"
-#include "libaec.h"
 
 #define NOPTS 129
 
diff --git a/src/szlib.h b/src/szlib.h
index 4ad55cf..a448754 100644
--- a/src/szlib.h
+++ b/src/szlib.h
@@ -1,5 +1,5 @@
 #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 */