Export symbols so we can actually link other Windows projects to libr…

…ade.dll.

CMakeLists.txt

@@ -6,6 +6,8 @@ project(RADAE
   LANGUAGES C
   )
 
+option(BUILD_SHARED_LIBS
+    "Build shared library. Set to OFF for static library." ON)
 option(AVX "Enable AVX CPU optimizations." ON)
 
 if(NOT CODEC2_DEV_BUILD_DIR)

src/CMakeLists.txt

@@ -3,12 +3,16 @@ include_directories(${CMAKE_CURRENT_SOURCE_DIR})
 add_executable(lpcnet_demo lpcnet_demo.c)
 target_link_libraries(lpcnet_demo opus m)
 
-add_executable(radae_tx radae_tx.c rade_api.c)
-#set_source_files_properties(rade_api.c PROPERTIES COMPILE_FLAGS "${PYTHON_C_FLAGS}")
-target_link_libraries(radae_tx Python3::Python Python3::NumPy)
+add_library(rade rade_api.c)
+target_link_libraries(rade Python3::Python Python3::NumPy)
+set_target_properties(rade PROPERTIES
+    SOVERSION "0.1"
+    PUBLIC_HEADER "rade_api.h"
+)
 
-add_executable(radae_rx radae_rx.c rade_api.c)
-target_link_libraries(radae_rx Python3::Python Python3::NumPy)
+add_executable(radae_tx radae_tx.c)
+target_link_libraries(radae_tx rade Python3::Python Python3::NumPy)
+
+add_executable(radae_rx radae_rx.c)
+target_link_libraries(radae_rx rade Python3::Python Python3::NumPy)
 
-add_library(rade SHARED rade_api.c)
-target_link_libraries(rade Python3::Python Python3::NumPy)

src/rade_api.h

@@ -39,6 +39,12 @@
 
 #include <sys/types.h>
 
+#if _WIN32
+#define RADE_EXPORT __declspec(dllexport) __stdcall
+#else
+#define RADE_EXPORT
+
+#endif // _WIN32
 // This declares a single-precision (float) complex number
 
 #ifndef __RADE_COMP__
@@ -58,38 +64,38 @@ extern "C" {
 #define RADE_SPEECH_SAMPLE_RATE 16000         // speech sample rate
 
 // note single context only in this version, one context has one Tx, and one Rx
-struct rade *rade_open(char model_file[]);
-void rade_close(struct rade *r);
+RADE_EXPORT struct rade *rade_open(char model_file[]);
+RADE_EXPORT void rade_close(struct rade *r);
 
 // Allows API users to determine if the API has changed
-int rade_version(void);
+RADE_EXPORT int rade_version(void);
 
 // helpers to set up arrays
-int rade_n_tx_out(struct rade *r);
-int rade_n_tx_eoo_out(struct rade *r);
-int rade_nin_max(struct rade *r);
-int rade_n_features_in_out(struct rade *r);
+RADE_EXPORT int rade_n_tx_out(struct rade *r);
+RADE_EXPORT int rade_n_tx_eoo_out(struct rade *r);
+RADE_EXPORT int rade_nin_max(struct rade *r);
+RADE_EXPORT int rade_n_features_in_out(struct rade *r);
 
 // note vocoder is not encapsulated in API in this version
 // returns number of RADE_COMP samples written to tx_out[]
-int rade_tx(struct rade *r, RADE_COMP tx_out[], float features_in[]);
+RADE_EXPORT int rade_tx(struct rade *r, RADE_COMP tx_out[], float features_in[]);
 
 // call this for the final frame at the end of over
 // returns the number of RADE_COMP samples written to tx_eoo_out[] 
-int rade_tx_eoo(struct rade *r, RADE_COMP tx_eoo_out[]);
+RADE_EXPORT int rade_tx_eoo(struct rade *r, RADE_COMP tx_eoo_out[]);
 
 // call me before each call to rade_rx(), provide nin samples to rx_in[]
-int rade_nin(struct rade *r);
+RADE_EXPORT int rade_nin(struct rade *r);
 
 // returns non-zero if features_out[] contains valid output. The number
 // returned is the number of samples written to features_out[]
-int rade_rx(struct rade *r, float features_out[], RADE_COMP rx_in[]);
+RADE_EXPORT int rade_rx(struct rade *r, float features_out[], RADE_COMP rx_in[]);
 
 // returns non-zero if Rx is currently in sync
-int rade_sync(struct rade *r);
+RADE_EXPORT int rade_sync(struct rade *r);
 
 // returns the current frequency offset of the Rx signal ( when rade_sync()!=0 )
-float rade_freq_offset(struct rade *r);
+RADE_EXPORT float rade_freq_offset(struct rade *r);
 
 #ifdef __cplusplus
 }