Implement CMake build script

CMakeLists.txt

@@ -0,0 +1,188 @@
+cmake_minimum_required(VERSION 3.9 FATAL_ERROR)
+project(rubberband VERSION 2.1.1)
+
+option(RUBBERBAND_EXAMPLE "Build the Rubberband example app" OFF)
+option(RUBBERBAND_OPTIMIZED "Build Rubberband optimized for the build machine's CPU" OFF)
+### Dependencies ###
+
+# ARM cross-compilers do not support march=native, only mtune=native
+set(MARCH_NATIVE_FLAG)
+
+include(CheckCXXCompilerFlag)
+
+if(RUBBERBAND_OPTIMIZED)
+  check_cxx_compiler_flag("-march=native" MARCH_NATIVE_SUPPORTED)
+  if(MARCH_NATIVE_SUPPORTED)
+    set(MARCH_NATIVE_FLAG "-march=native")
+  else()
+  endif()
+endif()
+
+find_package(Threads REQUIRED)
+
+# FFTW3
+find_path(FFTW3_INCLUDEDIR fftw3.h)
+find_library(FFTW3_LIBRARY fftw3)
+
+# libsamplerate
+if(NOT TARGET samplerate)
+  find_path(SAMPLERATE_INCLUDEDIR samplerate.h)
+  find_library(SAMPLERATE_LIBRARY samplerate)
+endif()
+
+# Accelerate framework
+if(APPLE)
+  find_library(ACCELERATE_FRAMEWORK NAMES Accelerate)
+endif()
+
+### Create our target ###
+add_library(rubberband)
+
+### Handle general flags, include paths, etc ###
+target_compile_options(rubberband
+  PRIVATE
+    $<$<BOOL:${APPLE}>:-mmacosx-version-min=10.11>
+    $<$<AND:$<NOT:$<CXX_COMPILER_ID:MSVC>>,$<CONFIG:Release>>:-ffast-math ${MARCH_NATIVE_FLAG} -O3 -ftree-vectorize>
+)
+
+target_compile_definitions(rubberband
+  PRIVATE
+    $<$<BOOL:${UNIX}>:USE_PTHREADS>
+    $<$<BOOL:${APPLE}>:HAVE_VDSP>
+    $<$<BOOL:$<CXX_COMPILER_ID:MSVC>>:__MSVC__ WIN32 _LIB NOMINMAX _USE_MATH_DEFINES USE_KISSFFT>
+    $<$<AND:$<CXX_COMPILER_ID:MSVC>,$<CONFIG:Release>>:NDEBUG>
+    $<$<AND:$<CXX_COMPILER_ID:MSVC>,$<CONFIG:Debug>>:_DEBUG NO_TIMING NO_THREAD_CHECKS>
+    MALLOC_IS_ALIGNED
+    NO_THREAD_CHECKS
+    NO_TIMING
+)
+
+target_include_directories(rubberband
+  PUBLIC
+      $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/rubberband>
+      $<INSTALL_INTERFACE:rubberband>
+  PRIVATE
+      $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/>
+      $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>
+)
+
+target_link_libraries(rubberband
+  PRIVATE
+    Threads::Threads
+)
+
+# Handle FFT library
+if(FFTW3_INCLUDEDIR AND FFTW3_LIBRARY)
+  target_include_directories(rubberband
+    PRIVATE
+      ${FFTW3_INCLUDEDIR}
+  )
+  target_compile_definitions(rubberband
+    PRIVATE
+      HAVE_FFTW3
+      FFTW_DOUBLE_ONLY
+  )
+  target_link_libraries(rubberband
+    PUBLIC
+      ${FFTW3_LIBRARY}
+  )
+else()
+  target_compile_definitions(rubberband
+    PRIVATE
+      USE_KISSFFT
+  )
+  target_sources(rubberband
+    PRIVATE
+      src/kissfft/kiss_fft.c
+      src/kissfft/kiss_fftr.c
+  )
+endif()
+
+# Apple framework
+if(APPLE)
+  target_link_libraries(rubberband
+    PRIVATE
+      "${ACCELERATE_FRAMEWORK}"
+  )
+endif()
+
+# Handle resampling library
+if(TARGET samplerate)
+  target_compile_definitions(rubberband
+    PRIVATE
+      HAVE_LIBSAMPLERATE
+  )
+
+  target_link_libraries(rubberband
+    PRIVATE
+      samplerate
+  )
+elseif(SAMPLERATE_INCLUDEDIR AND SAMPLERATE_LIBRARY)
+  target_include_directories(rubberband
+    PRIVATE
+      ${SAMPLERATE_INCLUDEDIR}
+  )
+  target_compile_definitions(rubberband
+    PRIVATE
+      HAVE_LIBSAMPLERATE
+  )
+  target_link_libraries(rubberband
+    PUBLIC
+      ${SAMPLERATE_LIBRARY}
+  )
+else()
+  target_compile_definitions(rubberband
+    PRIVATE
+      USE_SPEEX
+  )
+  target_sources(rubberband
+    PRIVATE
+      src/speex/resample.c
+  )
+endif()
+
+### Source files ###
+target_sources(rubberband
+  PRIVATE
+    src/RubberBandStretcher.cpp
+    src/StretchCalculator.cpp
+    src/StretcherChannelData.cpp
+    src/StretcherImpl.cpp
+    src/StretcherProcess.cpp
+    src/audiocurves/CompoundAudioCurve.cpp
+    src/audiocurves/ConstantAudioCurve.cpp
+    src/audiocurves/HighFrequencyAudioCurve.cpp
+    src/audiocurves/PercussiveAudioCurve.cpp
+    src/audiocurves/SilentAudioCurve.cpp
+    src/audiocurves/SpectralDifferenceAudioCurve.cpp
+    src/base/Profiler.cpp
+    src/dsp/AudioCurveCalculator.cpp
+    src/dsp/FFT.cpp
+    src/dsp/Resampler.cpp
+    src/rubberband-c.cpp
+    src/system/Allocators.cpp
+    src/system/Thread.cpp
+    src/system/VectorOpsComplex.cpp
+    src/system/sysutils.cpp
+)
+
+### Example ###
+if(RUBBERBAND_EXAMPLE)
+  add_executable(rubberband_test main/main.cpp)
+  target_include_directories(rubberband_test PRIVATE src Threads::Threads)
+  target_link_libraries(rubberband_test PRIVATE rubberband -lsndfile)
+endif()
+
+### Installation ###
+
+include(GNUInstallDirs)
+install(
+  TARGETS rubberband
+  EXPORT rubberband-exports
+  RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+  LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+  ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
+
+install(EXPORT rubberband-exports
+        DESTINATION lib/cmake/rubberband)
+export(EXPORT rubberband-exports)