CMakeLists.txt

cmake_minimum_required(VERSION 3.13 FATAL_ERROR)

set(CMAKE_OSX_DEPLOYMENT_TARGET "10.14" CACHE STRING "Minimum OS X deployment version. Used only for macOS")

set(CMAKE_POLICY_DEFAULT_CMP0063 NEW)
set(CMAKE_POLICY_DEFAULT_CMP0069 NEW)

project(sherpa-onnx)

# Remember to update
# ./nodejs-addon-examples
# ./dart-api-examples/
# ./CHANGELOG.md
set(SHERPA_ONNX_VERSION "1.10.27")

# Disable warning about
#
# "The DOWNLOAD_EXTRACT_TIMESTAMP option was not given and policy CMP0135 is
#  not set.
if (CMAKE_VERSION VERSION_GREATER_EQUAL "3.24.0")
  cmake_policy(SET CMP0135 NEW)
endif()

option(SHERPA_ONNX_ENABLE_PYTHON "Whether to build Python" OFF)
option(SHERPA_ONNX_ENABLE_TESTS "Whether to build tests" OFF)
option(SHERPA_ONNX_ENABLE_CHECK "Whether to build with assert" OFF)
option(BUILD_SHARED_LIBS "Whether to build shared libraries" OFF)
option(SHERPA_ONNX_ENABLE_PORTAUDIO "Whether to build with portaudio" ON)
option(SHERPA_ONNX_ENABLE_JNI "Whether to build JNI internface" OFF)
option(SHERPA_ONNX_ENABLE_C_API "Whether to build C API" ON)
option(SHERPA_ONNX_ENABLE_WEBSOCKET "Whether to build webscoket server/client" ON)
option(SHERPA_ONNX_ENABLE_GPU "Enable ONNX Runtime GPU support" OFF)
option(SHERPA_ONNX_ENABLE_DIRECTML "Enable ONNX Runtime DirectML support" OFF)
option(SHERPA_ONNX_ENABLE_WASM "Whether to enable WASM" OFF)
option(SHERPA_ONNX_ENABLE_WASM_TTS "Whether to enable WASM for TTS" OFF)
option(SHERPA_ONNX_ENABLE_WASM_ASR "Whether to enable WASM for ASR" OFF)
option(SHERPA_ONNX_ENABLE_WASM_KWS "Whether to enable WASM for KWS" OFF)
option(SHERPA_ONNX_ENABLE_WASM_VAD "Whether to enable WASM for VAD" OFF)
option(SHERPA_ONNX_ENABLE_WASM_VAD_ASR "Whether to enable WASM for VAD+ASR" OFF)
option(SHERPA_ONNX_ENABLE_WASM_NODEJS "Whether to enable WASM for NodeJS" OFF)
option(SHERPA_ONNX_ENABLE_BINARY "Whether to build binaries" ON)
option(SHERPA_ONNX_ENABLE_TTS "Whether to build TTS related code" ON)
option(SHERPA_ONNX_ENABLE_SPEAKER_DIARIZATION "Whether to build speaker diarization related code" ON)
option(SHERPA_ONNX_LINK_LIBSTDCPP_STATICALLY "True to link libstdc++ statically. Used only when BUILD_SHARED_LIBS is OFF on Linux" ON)
option(SHERPA_ONNX_USE_PRE_INSTALLED_ONNXRUNTIME_IF_AVAILABLE "True to use pre-installed onnxruntime if available" ON)
option(SHERPA_ONNX_ENABLE_SANITIZER "Whether to enable ubsan and asan" OFF)
option(SHERPA_ONNX_BUILD_C_API_EXAMPLES "Whether to enable C API examples" ON)

set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib")
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin")

set(CMAKE_SKIP_BUILD_RPATH FALSE)
set(BUILD_RPATH_USE_ORIGIN TRUE)
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)

if(NOT APPLE)
  set(SHERPA_ONNX_RPATH_ORIGIN "$ORIGIN")
else()
  set(SHERPA_ONNX_RPATH_ORIGIN "@loader_path")
endif()

if(NOT WIN32)
  set(CMAKE_INSTALL_RPATH ${SHERPA_ONNX_RPATH_ORIGIN})
  set(CMAKE_BUILD_RPATH ${SHERPA_ONNX_RPATH_ORIGIN})
endif()

if(NOT CMAKE_BUILD_TYPE)
  message(STATUS "No CMAKE_BUILD_TYPE given, default to Release")
  set(CMAKE_BUILD_TYPE Release)
endif()

if(DEFINED ANDROID_ABI AND NOT SHERPA_ONNX_ENABLE_JNI AND NOT SHERPA_ONNX_ENABLE_C_API)
  message(STATUS "Set SHERPA_ONNX_ENABLE_JNI to ON for Android")
  set(SHERPA_ONNX_ENABLE_JNI ON CACHE BOOL "" FORCE)
endif()

if(SHERPA_ONNX_ENABLE_PYTHON AND NOT BUILD_SHARED_LIBS)
  message(STATUS "Set BUILD_SHARED_LIBS to ON since SHERPA_ONNX_ENABLE_PYTHON is ON")
  set(BUILD_SHARED_LIBS ON CACHE BOOL "" FORCE)
endif()

if(SHERPA_ONNX_ENABLE_JNI AND NOT BUILD_SHARED_LIBS)
  message(STATUS "Set BUILD_SHARED_LIBS to ON since SHERPA_ONNX_ENABLE_JNI is ON")
  set(BUILD_SHARED_LIBS ON CACHE BOOL "" FORCE)
endif()

if(SHERPA_ONNX_ENABLE_GPU)
  message(WARNING "\
Compiling for NVIDIA GPU is enabled. Please make sure cudatoolkit
is installed on your system. Otherwise, you will get errors at runtime.
Hint: You don't need sudo permission to install CUDA toolkit. Please refer to
  https://k2-fsa.github.io/k2/installation/cuda-cudnn.html
to install CUDA toolkit if you have not installed it.")
  if(NOT BUILD_SHARED_LIBS)
    message(STATUS "Set BUILD_SHARED_LIBS to ON since SHERPA_ONNX_ENABLE_GPU is ON")
    set(BUILD_SHARED_LIBS ON CACHE BOOL "" FORCE)
  endif()
endif()

if(SHERPA_ONNX_ENABLE_DIRECTML)
  message(WARNING "\
Compiling with DirectML enabled. Please make sure Windows 10 SDK
is installed on your system. Otherwise, you will get errors at runtime.
Please refer to
  https://onnxruntime.ai/docs/execution-providers/DirectML-ExecutionProvider.html#requirements
to install Windows 10 SDK if you have not installed it.")
  if(NOT BUILD_SHARED_LIBS)
    message(STATUS "Set BUILD_SHARED_LIBS to ON since SHERPA_ONNX_ENABLE_DIRECTML is ON")
    set(BUILD_SHARED_LIBS ON CACHE BOOL "" FORCE)
  endif()
endif()

# see https://cmake.org/cmake/help/latest/prop_tgt/MSVC_RUNTIME_LIBRARY.html
# https://stackoverflow.com/questions/14172856/compile-with-mt-instead-of-md-using-cmake
if(MSVC)
  add_compile_options(
      $<$<CONFIG:>:/MT> #---------|
      $<$<CONFIG:Debug>:/MTd> #---|-- Statically link the runtime libraries
      $<$<CONFIG:Release>:/MT> #--|
      $<$<CONFIG:RelWithDebInfo>:/MT>
      $<$<CONFIG:MinSizeRel>:/MT>
  )
endif()

message(STATUS "CMAKE_BUILD_TYPE: ${CMAKE_BUILD_TYPE}")
message(STATUS "CMAKE_INSTALL_PREFIX: ${CMAKE_INSTALL_PREFIX}")
message(STATUS "BUILD_SHARED_LIBS ${BUILD_SHARED_LIBS}")
message(STATUS "SHERPA_ONNX_ENABLE_PYTHON ${SHERPA_ONNX_ENABLE_PYTHON}")
message(STATUS "SHERPA_ONNX_ENABLE_TESTS ${SHERPA_ONNX_ENABLE_TESTS}")
message(STATUS "SHERPA_ONNX_ENABLE_CHECK ${SHERPA_ONNX_ENABLE_CHECK}")
message(STATUS "SHERPA_ONNX_ENABLE_PORTAUDIO ${SHERPA_ONNX_ENABLE_PORTAUDIO}")
message(STATUS "SHERPA_ONNX_ENABLE_JNI ${SHERPA_ONNX_ENABLE_JNI}")
message(STATUS "SHERPA_ONNX_ENABLE_C_API ${SHERPA_ONNX_ENABLE_C_API}")
message(STATUS "SHERPA_ONNX_ENABLE_WEBSOCKET ${SHERPA_ONNX_ENABLE_WEBSOCKET}")
message(STATUS "SHERPA_ONNX_ENABLE_GPU ${SHERPA_ONNX_ENABLE_GPU}")
message(STATUS "SHERPA_ONNX_ENABLE_WASM ${SHERPA_ONNX_ENABLE_WASM}")
message(STATUS "SHERPA_ONNX_ENABLE_WASM_TTS ${SHERPA_ONNX_ENABLE_WASM_TTS}")
message(STATUS "SHERPA_ONNX_ENABLE_WASM_ASR ${SHERPA_ONNX_ENABLE_WASM_ASR}")
message(STATUS "SHERPA_ONNX_ENABLE_WASM_KWS ${SHERPA_ONNX_ENABLE_WASM_KWS}")
message(STATUS "SHERPA_ONNX_ENABLE_WASM_VAD ${SHERPA_ONNX_ENABLE_WASM_VAD}")
message(STATUS "SHERPA_ONNX_ENABLE_WASM_VAD_ASR ${SHERPA_ONNX_ENABLE_WASM_VAD_ASR}")
message(STATUS "SHERPA_ONNX_ENABLE_WASM_NODEJS ${SHERPA_ONNX_ENABLE_WASM_NODEJS}")
message(STATUS "SHERPA_ONNX_ENABLE_BINARY ${SHERPA_ONNX_ENABLE_BINARY}")
message(STATUS "SHERPA_ONNX_ENABLE_TTS ${SHERPA_ONNX_ENABLE_TTS}")
message(STATUS "SHERPA_ONNX_ENABLE_SPEAKER_DIARIZATION ${SHERPA_ONNX_ENABLE_SPEAKER_DIARIZATION}")
message(STATUS "SHERPA_ONNX_LINK_LIBSTDCPP_STATICALLY ${SHERPA_ONNX_LINK_LIBSTDCPP_STATICALLY}")
message(STATUS "SHERPA_ONNX_USE_PRE_INSTALLED_ONNXRUNTIME_IF_AVAILABLE ${SHERPA_ONNX_USE_PRE_INSTALLED_ONNXRUNTIME_IF_AVAILABLE}")
message(STATUS "SHERPA_ONNX_ENABLE_SANITIZER: ${SHERPA_ONNX_ENABLE_SANITIZER}")
message(STATUS "SHERPA_ONNX_BUILD_C_API_EXAMPLES: ${SHERPA_ONNX_BUILD_C_API_EXAMPLES}")

if(BUILD_SHARED_LIBS)
  set(CMAKE_CXX_VISIBILITY_PRESET hidden)
  set(CMAKE_VISIBILITY_INLINES_HIDDEN 1)
  set(CMAKE_POSITION_INDEPENDENT_CODE ON)
endif()

if(BUILD_SHARED_LIBS AND NOT CMAKE_SYSTEM_NAME STREQUAL iOS AND CMAKE_BUILD_TYPE STREQUAL Release)
  # Don't use LTO for iOS since it causes the following error
  # error: unable to find any architecture information in the binary
  # at '/Users/fangjun/open-source/sherpa-onnx/build-ios/build/os64/sherpa-onnx.a':
  # Unknown header: 0xb17c0de
  # See also https://forums.developer.apple.com/forums/thread/714324

  include(CheckIPOSupported)
  check_ipo_supported(RESULT ipo)
  if(ipo)
    message(STATUS "IPO is enabled")
    set(CMAKE_INTERPROCEDURAL_OPTIMIZATION ON)
  else()
    message(STATUS "IPO is not available")
  endif()
endif()

if(SHERPA_ONNX_ENABLE_TTS)
  message(STATUS "TTS is enabled")
  add_definitions(-DSHERPA_ONNX_ENABLE_TTS=1)
else()
  message(WARNING "TTS is disabled")
  add_definitions(-DSHERPA_ONNX_ENABLE_TTS=0)
endif()

if(SHERPA_ONNX_ENABLE_SPEAKER_DIARIZATION)
  message(STATUS "speaker diarization is enabled")
  add_definitions(-DSHERPA_ONNX_ENABLE_SPEAKER_DIARIZATION=1)
else()
  message(WARNING "speaker diarization is disabled")
  add_definitions(-DSHERPA_ONNX_ENABLE_SPEAKER_DIARIZATION=0)
endif()

if(SHERPA_ONNX_ENABLE_DIRECTML)
  message(STATUS "DirectML is enabled")
  add_definitions(-DSHERPA_ONNX_ENABLE_DIRECTML=1)
else()
  message(WARNING "DirectML is disabled")
  add_definitions(-DSHERPA_ONNX_ENABLE_DIRECTML=0)
endif()

if(SHERPA_ONNX_ENABLE_WASM_TTS)
  if(NOT SHERPA_ONNX_ENABLE_TTS)
    message(FATAL_ERROR "Please set SHERPA_ONNX_ENABLE_TTS to ON if you want to build wasm TTS")
  endif()

  if(NOT SHERPA_ONNX_ENABLE_WASM)
    message(FATAL_ERROR "Please set SHERPA_ONNX_ENABLE_WASM to ON if you enable WASM for TTS")
  endif()
endif()

if(SHERPA_ONNX_ENABLE_WASM_ASR)
  if(NOT SHERPA_ONNX_ENABLE_WASM)
    message(FATAL_ERROR "Please set SHERPA_ONNX_ENABLE_WASM to ON if you enable WASM for ASR")
  endif()
endif()

if(SHERPA_ONNX_ENABLE_WASM_NODEJS)
  if(NOT SHERPA_ONNX_ENABLE_WASM)
    message(FATAL_ERROR "Please set SHERPA_ONNX_ENABLE_WASM to ON if you enable WASM for NodeJS")
  endif()
  add_definitions(-DSHERPA_ONNX_ENABLE_WASM_KWS=1)
endif()

if(SHERPA_ONNX_ENABLE_WASM)
  add_definitions(-DSHERPA_ONNX_ENABLE_WASM=1)
endif()

if(SHERPA_ONNX_ENABLE_WASM_KWS)
  if(NOT SHERPA_ONNX_ENABLE_WASM)
    message(FATAL_ERROR "Please set SHERPA_ONNX_ENABLE_WASM to ON if you enable WASM for KWS")
  endif()
  add_definitions(-DSHERPA_ONNX_ENABLE_WASM_KWS=1)
endif()

if(SHERPA_ONNX_ENABLE_WASM_VAD)
  if(NOT SHERPA_ONNX_ENABLE_WASM)
    message(FATAL_ERROR "Please set SHERPA_ONNX_ENABLE_WASM to ON if you enable WASM for VAD")
  endif()
endif()

if(SHERPA_ONNX_ENABLE_WASM_VAD_ASR)
  if(NOT SHERPA_ONNX_ENABLE_WASM)
    message(FATAL_ERROR "Please set SHERPA_ONNX_ENABLE_WASM to ON if you enable WASM for VAD+ASR")
  endif()
endif()

if(NOT CMAKE_CXX_STANDARD)
  set(CMAKE_CXX_STANDARD 17 CACHE STRING "The C++ version to be used.")
endif()
set(CMAKE_CXX_EXTENSIONS OFF)
message(STATUS "C++ Standard version: ${CMAKE_CXX_STANDARD}")

include(CheckIncludeFileCXX)

if(UNIX AND NOT APPLE AND NOT SHERPA_ONNX_ENABLE_WASM AND NOT CMAKE_SYSTEM_NAME STREQUAL Android)
  check_include_file_cxx(alsa/asoundlib.h SHERPA_ONNX_HAS_ALSA)
  if(SHERPA_ONNX_HAS_ALSA)
    message(STATUS "With Alsa")
    add_definitions(-DSHERPA_ONNX_ENABLE_ALSA=1)
  else()
    message(WARNING "\
Could not find alsa/asoundlib.h !
We won't build sherpa-onnx-alsa
To fix that, please do:
  (1) sudo apt-get install alsa-utils libasound2-dev
  (2) rm -rf build
  (3) re-try
  ")
  endif()
endif()

check_include_file_cxx(cxxabi.h SHERPA_ONNX_HAVE_CXXABI_H)
check_include_file_cxx(execinfo.h SHERPA_ONNX_HAVE_EXECINFO_H)

if(WIN32)
  add_definitions(-DNOMINMAX) # Otherwise, std::max() and std::min() won't work
endif()

if(WIN32 AND MSVC)
  # disable various warnings for MSVC
  # 4244: 'return': conversion from 'unsigned __int64' to 'int', possible loss of data
  # 4267: 'initializing': conversion from 'size_t' to 'int', possible loss of data
  # 4305: 'argument': truncation from 'double' to 'const float'
  # 4334: '<<': result of 32-bit shift implicitly converted to 64 bits
  # 4800: 'int': forcing value to bool 'true' or 'false'
  # 4996: 'fopen': This function or variable may be unsafe
  set(disabled_warnings
      /wd4244
      /wd4267
      /wd4305
      /wd4334
      /wd4800
      /wd4996
  )
  message(STATUS "Disabled warnings: ${disabled_warnings}")
  foreach(w IN LISTS disabled_warnings)
    string(APPEND CMAKE_CXX_FLAGS " ${w} ")
  endforeach()

  add_compile_options("$<$<C_COMPILER_ID:MSVC>:/utf-8>")
  add_compile_options("$<$<CXX_COMPILER_ID:MSVC>:/utf-8>")
endif()

list(APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/Modules)
list(APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake)

if(SHERPA_ONNX_ENABLE_WASM)
  # Enable it for debugging in case there is something wrong.
  # string(APPEND CMAKE_CXX_FLAGS " -g4 -s ASSERTIONS=2 -s SAFE_HEAP=1 -s STACK_OVERFLOW_CHECK=1 ")
endif()

if(NOT BUILD_SHARED_LIBS AND CMAKE_SYSTEM_NAME STREQUAL Linux)
  if(SHERPA_ONNX_LINK_LIBSTDCPP_STATICALLY)
    message(STATUS "Link libstdc++ statically")
    set(CMAKE_CXX_FLAGS " ${CMAKE_CXX_FLAGS} -static-libstdc++ -static-libgcc ")
  else()
    message(STATUS "Link libstdc++ dynamically")
  endif()
endif()

include(kaldi-native-fbank)
include(kaldi-decoder)
include(onnxruntime)
include(simple-sentencepiece)
set(ONNXRUNTIME_DIR ${onnxruntime_SOURCE_DIR})
message(STATUS "ONNXRUNTIME_DIR: ${ONNXRUNTIME_DIR}")

if(SHERPA_ONNX_ENABLE_PORTAUDIO AND SHERPA_ONNX_ENABLE_BINARY)
  # portaudio is used only in building demo binaries and the sherpa-onnx-core
  # library does not depend on it.
  include(portaudio)
endif()

if(SHERPA_ONNX_ENABLE_PYTHON)
  include(pybind11)
endif()

if(SHERPA_ONNX_ENABLE_TESTS)
  enable_testing()
  include(googletest)
endif()

if(SHERPA_ONNX_ENABLE_WEBSOCKET)
  include(websocketpp)
  include(asio)
endif()

if(SHERPA_ONNX_ENABLE_TTS)
  include(espeak-ng-for-piper)
  set(ESPEAK_NG_DIR ${espeak_ng_SOURCE_DIR})
  message(STATUS "ESPEAK_NG_DIR: ${ESPEAK_NG_DIR}")
  include(piper-phonemize)
  include(cppjieba) # For Chinese TTS. It is a header-only C++ library
endif()

if(SHERPA_ONNX_ENABLE_SPEAKER_DIARIZATION)
  include(hclust-cpp)
endif()

# if(NOT MSVC AND CMAKE_BUILD_TYPE STREQUAL Debug AND (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang"))
if(SHERPA_ONNX_ENABLE_SANITIZER)
  message(WARNING "enable ubsan and asan")
  set(CMAKE_REQUIRED_LIBRARIES -lubsan -lasan)
  include(CheckCCompilerFlag)

  set(flags -fsanitize=undefined )
  string(APPEND flags " -fno-sanitize-recover=undefined ")
  string(APPEND flags " -fsanitize=integer ")
  string(APPEND flags " -fsanitize=nullability ")
  string(APPEND flags " -fsanitize=implicit-conversion ")
  string(APPEND flags " -fsanitize=bounds ")
  string(APPEND flags " -fsanitize=address ")

  if(OFF)
    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${flags} -Wall -Wextra")
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${flags} -Wall -Wextra")
  else()
    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${flags}")
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${flags}")
  endif()

  set(CMAKE_EXECUTBLE_LINKER_FLAGS "${CMAKE_EXECUTBLE_LINKER_FLAGS} ${flags}")

  add_compile_options(-fno-omit-frame-pointer)
endif()

add_subdirectory(sherpa-onnx)

if(SHERPA_ONNX_ENABLE_C_API AND SHERPA_ONNX_ENABLE_BINARY AND SHERPA_ONNX_BUILD_C_API_EXAMPLES)
  set(SHERPA_ONNX_PKG_WITH_CARGS "-lcargs")
  add_subdirectory(c-api-examples)
endif()

if(SHERPA_ONNX_ENABLE_WASM)
  add_subdirectory(wasm)
endif()

message(STATUS "CMAKE_CXX_FLAGS: ${CMAKE_CXX_FLAGS}")

if(NOT BUILD_SHARED_LIBS)
  if(APPLE)
    set(SHERPA_ONNX_PKG_CONFIG_EXTRA_LIBS "-lc++ -framework Foundation")
  endif()

  if(UNIX AND NOT APPLE)
    set(SHERPA_ONNX_PKG_CONFIG_EXTRA_LIBS "-lstdc++ -lm -pthread -ldl")
  endif()
endif()

if(NOT BUILD_SHARED_LIBS)
# See https://people.freedesktop.org/~dbn/pkg-config-guide.html
  if(SHERPA_ONNX_ENABLE_TTS)
    configure_file(cmake/sherpa-onnx-static.pc.in ${PROJECT_BINARY_DIR}/sherpa-onnx.pc @ONLY)
  else()
    configure_file(cmake/sherpa-onnx-static-no-tts.pc.in ${PROJECT_BINARY_DIR}/sherpa-onnx.pc @ONLY)
  endif()
else()
  configure_file(cmake/sherpa-onnx-shared.pc.in ${PROJECT_BINARY_DIR}/sherpa-onnx.pc @ONLY)
endif()

install(
  FILES
    ${PROJECT_BINARY_DIR}/sherpa-onnx.pc
  DESTINATION
    ./
)
message(STATUS "CMAKE_CXX_FLAGS: ${CMAKE_CXX_FLAGS}")