add openblas

cmake/BuildWhispercpp.cmake

@@ -13,6 +13,25 @@ if(UNIX AND NOT APPLE)
   set(WHISPER_EXTRA_CXX_FLAGS "-fPIC")
 endif()
 
+# if on Windows - download OpenBLAS prebuilt binaries
+if(WIN32)
+    set(OpenBLAS_URL
+        "https://github.com/xianyi/OpenBLAS/releases/download/v0.3.24/OpenBLAS-0.3.24-x64.zip")
+    set(OpenBLAS_SHA256
+     "8E777E406BA7030D21ADB18683D6175E4FA5ADACFBC09982C01E81245B348132"
+    )
+    ExternalProject_Add(
+      OpenBLAS
+      URL ${OpenBLAS_URL}
+      URL_HASH SHA256=${OpenBLAS_SHA256}
+      DOWNLOAD_NO_PROGRESS true
+      CONFIGURE_COMMAND ""
+      BUILD_COMMAND ""
+      INSTALL_COMMAND ${CMAKE_COMMAND} -E copy_directory <SOURCE_DIR> <INSTALL_DIR>)
+    ExternalProject_Get_Property(OpenBLAS INSTALL_DIR)
+    set(OpenBLAS_DIR ${INSTALL_DIR})
+endif(WIN32)
+
 ExternalProject_Add(
   Whispercpp_Build
   DOWNLOAD_EXTRACT_TIMESTAMP true
@@ -20,31 +39,56 @@ ExternalProject_Add(
   GIT_TAG 7b374c9ac9b9861bb737eec060e4dfa29d229259
   BUILD_COMMAND ${CMAKE_COMMAND} --build <BINARY_DIR> --config ${Whispercpp_BUILD_TYPE}
   BUILD_BYPRODUCTS <INSTALL_DIR>/lib/static/${CMAKE_STATIC_LIBRARY_PREFIX}whisper${CMAKE_STATIC_LIBRARY_SUFFIX}
+    <INSTALL_DIR>/bin/${CMAKE_SHARED_LIBRARY_PREFIX}whisper${CMAKE_SHARED_LIBRARY_SUFFIX}
+    <INSTALL_DIR>/lib/${CMAKE_IMPORT_LIBRARY_PREFIX}whisper${CMAKE_IMPORT_LIBRARY_SUFFIX}
   CMAKE_GENERATOR ${CMAKE_GENERATOR}
-  INSTALL_COMMAND ${CMAKE_COMMAND} --install <BINARY_DIR> --config ${Whispercpp_BUILD_TYPE}
+  INSTALL_COMMAND ${CMAKE_COMMAND} --install <BINARY_DIR> --config ${Whispercpp_BUILD_TYPE} && ${CMAKE_COMMAND} -E copy <BINARY_DIR>/${Whispercpp_BUILD_TYPE}/whisper.lib <INSTALL_DIR>/lib
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=<INSTALL_DIR>
+  CONFIGURE_COMMAND
+             ${CMAKE_COMMAND} -E env OPENBLAS_PATH=${OpenBLAS_DIR}
+             ${CMAKE_COMMAND} <SOURCE_DIR> -B <BINARY_DIR> -G ${CMAKE_GENERATOR}
+             -DCMAKE_INSTALL_PREFIX=<INSTALL_DIR>
              -DCMAKE_BUILD_TYPE=${Whispercpp_BUILD_TYPE}
              -DCMAKE_GENERATOR_PLATFORM=${CMAKE_GENERATOR_PLATFORM}
              -DCMAKE_OSX_DEPLOYMENT_TARGET=10.13
              -DCMAKE_OSX_ARCHITECTURES=${CMAKE_OSX_ARCHITECTURES_}
              -DCMAKE_CXX_FLAGS=${WHISPER_EXTRA_CXX_FLAGS}
              -DCMAKE_C_FLAGS=${WHISPER_EXTRA_CXX_FLAGS}
-             -DBUILD_SHARED_LIBS=OFF
+             -DBUILD_SHARED_LIBS=ON
              -DWHISPER_BUILD_TESTS=OFF
              -DWHISPER_BUILD_EXAMPLES=OFF
-             -DWHISPER_OPENBLAS=ON)
+             -DWHISPER_BLAS=ON)
+
+if(WIN32)
+    add_dependencies(Whispercpp_Build OpenBLAS)
+endif(WIN32)
 
 ExternalProject_Get_Property(Whispercpp_Build INSTALL_DIR)
 
-add_library(Whispercpp::Whisper STATIC IMPORTED)
+add_library(Whispercpp::Whisper SHARED IMPORTED)
 set_target_properties(
   Whispercpp::Whisper
   PROPERTIES IMPORTED_LOCATION
-             ${INSTALL_DIR}/lib/static/${CMAKE_STATIC_LIBRARY_PREFIX}whisper${CMAKE_STATIC_LIBRARY_SUFFIX})
+             ${INSTALL_DIR}/bin/${CMAKE_SHARED_LIBRARY_PREFIX}whisper${CMAKE_SHARED_LIBRARY_SUFFIX})
+set_target_properties(
+  Whispercpp::Whisper
+  PROPERTIES IMPORTED_IMPLIB
+            ${INSTALL_DIR}/lib/${CMAKE_STATIC_LIBRARY_PREFIX}whisper${CMAKE_STATIC_LIBRARY_SUFFIX})
+
+install(FILES ${INSTALL_DIR}/bin/${CMAKE_SHARED_LIBRARY_PREFIX}whisper${CMAKE_SHARED_LIBRARY_SUFFIX} DESTINATION "obs-plugins/64bit")
+
+# add openblas to the link line
+if(WIN32)
+    add_library(Whispercpp::OpenBLAS STATIC IMPORTED)
+    set_target_properties(
+      Whispercpp::OpenBLAS
+      PROPERTIES IMPORTED_LOCATION
+                 ${OpenBLAS_DIR}/lib/libopenblas.dll.a)
+    install(FILES ${OpenBLAS_DIR}/bin/libopenblas.dll DESTINATION "obs-plugins/64bit")
+endif(WIN32)
 
 add_library(Whispercpp INTERFACE)
 add_dependencies(Whispercpp Whispercpp_Build)
-target_link_libraries(Whispercpp INTERFACE Whispercpp::Whisper)
+target_link_libraries(Whispercpp INTERFACE Whispercpp::Whisper Whispercpp::OpenBLAS)
 set_target_properties(Whispercpp::Whisper PROPERTIES INTERFACE_INCLUDE_DIRECTORIES ${INSTALL_DIR}/include)
 if(APPLE)
   target_link_libraries(Whispercpp INTERFACE "-framework Accelerate")