cmake_minimum_required (VERSION 3.16) 

project(LASP LANGUAGES C CXX)

# To allow linking to static libs from other directories
cmake_policy(SET CMP0079 NEW)

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${PROJECT_SOURCE_DIR}/cmake")
include("BuildType")
include("QueryPythonForPybind11")


# Find the pybind11 package
find_pybind11_python_first()

# This is used for code completion in vim
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED)

option(LASP_DOUBLE_PRECISION "Compile as double precision floating point" ON)
option(LASP_HAS_RTAUDIO "Compile with RtAudio Daq backend" ON)
option(LASP_HAS_ULDAQ "Compile with UlDaq backend" ON)

set(LASP_FFT_BACKEND "FFTW" CACHE STRING "FFT Library backend")
set_property(CACHE LASP_FFT_BACKEND PROPERTY STRINGS "FFTW" "FFTPack" "None")

set(PY_FULL_VERSION ${PROJECT_VERSION}${PY_VERSION_SUFFIX})

# Required for PYBIND11
set(CMAKE_POSITION_INDEPENDENT_CODE ON)

if(CMAKE_BUILD_TYPE STREQUAL Debug)
    add_definitions(-DDEBUG=1)
    set(LASP_DEBUG True)
else()
    set(LASP_DEBUG False)
endif()

# link openblas
set(BLA_VENDOR OpenBLAS)
find_package(BLAS REQUIRED)

# Reasonable maximum to the nfft size, at 48kHz this is 700s of data...
add_definitions(-DLASP_MAX_NFFT=33554432) # 2**25

# ####################################### End of user-adjustable variables section
include(OSSpecific)


set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wno-type-limits")

set(CMAKE_C_FLAGS_RELEASE  "-O3 -mfpmath=sse -march=x86-64 -mtune=native \
-fdata-sections -ffunction-sections -fomit-frame-pointer -finline-functions")

# ############################# End compilation flags

add_subdirectory(third_party)
add_subdirectory(src/lasp)