CMakeLists.txt

###################################
# CMake Project for VSTSID Plugin #
###################################

cmake_minimum_required(VERSION 3.19)
set(CMAKE_COLOR_MAKEFILE ON)

# uncomment to build as VST2.4 instead of VST3.0 (provides wider DAW compatibility), not supported on Linux
#set(SMTG_CREATE_VST2_VERSION "Use VST2" ON)

project(VSTSID)
set(PROJECT_VERSION 1)
set(target vstsid)
set(copyright "igorski.nl 2018-2023")
set(major_version 1)
set(minor_version 1)
set(release_number 1)
set(build_number 1) # TODO supply through CLI (build number is not included in public facing version strings)
set(SMTG_CREATE_MODULE_INFO false)

#####################
# Compiler settings #
#####################

set(CMAKE_CXX_STANDARD 17)
add_definitions(-DNDEBUG)
add_compile_definitions(PLUGIN_COPYRIGHT=${copyright})
add_compile_definitions(PLUGIN_MAJOR_VERSION=${major_version})
add_compile_definitions(PLUGIN_MINOR_VERSION=${minor_version})
add_compile_definitions(PLUGIN_RELEASE_NUMBER=${release_number})
add_compile_definitions(PLUGIN_BUILD_NUMBER=${build_number})

if(MSVC)
    add_definitions(/D _CRT_SECURE_NO_WARNINGS)
endif()

if(UNIX)
    if(XCODE)
       set(CMAKE_XCODE_ATTRIBUTE_CLANG_CXX_LANGUAGE_STANDARD "c++17")
       set(CMAKE_XCODE_ATTRIBUTE_CLANG_CXX_LIBRARY "libc++")
    elseif(APPLE)
       set(CMAKE_POSITION_INDEPENDENT_CODE TRUE)
       set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17 -stdlib=libc++")
       link_libraries(c++)
       # support Yosemite and up
       set(CMAKE_OSX_SYSROOT macosx10.13)
       set(CMAKE_OSX_DEPLOYMENT_TARGET "10.13")
    else()
        set(LINUX true)
        add_definitions( -D__cdecl= )
        set(CMAKE_POSITION_INDEPENDENT_CODE TRUE)
        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17 -Wno-multichar")
        link_libraries(stdc++fs pthread dl)
    endif()
else()
    ## spotted to not be set by default on VS CLI. Here we assume any non-Unix
    ## OS MUST be Windows. Then again that's the only other intended target for this project...
    set(WIN true)
endif()

############
# Includes #
############

list(APPEND CMAKE_MODULE_PATH "${VST3_SDK_ROOT}/cmake/modules")

include(SMTG_Global)
include(SMTG_AddVST3Library)
include(SMTG_Bundle)
include(SMTG_ExportedSymbols)
include(SMTG_PrefixHeader)
include(SMTG_PlatformIOS)
include(SMTG_PlatformToolset)
include(SMTG_CoreAudioSupport)
include(SMTG_AAXSupport)
include(SMTG_VstGuiSupport)
include(SMTG_UniversalBinary)
include(SMTG_AddVST3Options)

#########################
# Steinberg VST sources #
#########################

set(VSTSDK_INCLUDE_DIR ${VST3_SDK_ROOT})
set(VSTSDK_PLUGIN_SOURCE
    ${VST3_SDK_ROOT}/public.sdk/source/common/commoniids.cpp
    ${VST3_SDK_ROOT}/public.sdk/source/vst/vstaudioeffect.cpp
    ${VST3_SDK_ROOT}/public.sdk/source/vst/vstaudioprocessoralgo.h
    ${VST3_SDK_ROOT}/public.sdk/source/vst/vsteditcontroller.h
    ${VST3_SDK_ROOT}/pluginterfaces/base/ibstream.h
    ${VST3_SDK_ROOT}/pluginterfaces/base/ustring.h
    ${VST3_SDK_ROOT}/pluginterfaces/vst/ivstevents.h
    ${VST3_SDK_ROOT}/pluginterfaces/vst/ivstparameterchanges.h
    ${VST3_SDK_ROOT}/pluginterfaces/vst/vstpresetkeys.h
)

set(vst2_sources
    ${VST3_SDK_ROOT}/public.sdk/source/vst/vst2wrapper/vst2wrapper.sdk.cpp
    src/vstentry_vst2.cpp
)
if(APPLE)
    set(vst2_sources
        ${vst2_sources}
        ${VST3_SDK_ROOT}/public.sdk/source/common/threadchecker_mac.mm
    )
elseif(WIN)
    set(vst2_sources
        ${vst2_sources}
        ${VST3_SDK_ROOT}/public.sdk/source/common/threadchecker_win32.cpp
    )
endif()

##########################
# Plugin project sources #
##########################

set(vst_sources
    src/global.h
    src/calc.h
    src/miditable.h
    src/paramids.h
    src/lfo.h
    src/lfo.cpp
    src/filter.h
    src/filter.cpp
    src/ringmod.h
    src/ringmod.cpp
    src/synth.h
    src/synth.cpp
    src/vst.h
    src/vst.cpp
    src/vstentry.cpp
    src/version.h
    src/ui/controller.h
    src/ui/controller.cpp
    src/ui/uimessagecontroller.h
    resource/plugin.uidesc
    ${VSTSDK_PLUGIN_SOURCE}
)

# add the VST2 source files when compiling a VST2 (not supported on Linux)
if(SMTG_CREATE_VST2_VERSION)
    if(APPLE OR WIN)
        set(vst_sources ${vst_sources} ${vst2_sources})
    endif()
endif()

set(vst_resources
    "resource/background.png"
    "resource/slider_background.png"
    "resource/slider_handle.png"
    "resource/slider_handle_2.0x.png"
    "resource/version.png"
)
set(vst_ui_descr "resource/plugin.uidesc")

#######
# VST #
#######

set(steinberg_libs "base" "pluginterfaces" "sdk" "vstgui_support" "vstgui_uidescription" "vstgui")
smtg_add_vst3plugin(${target} ${vst_sources})

##############
# Audio Unit #
##############

if (CREATE_AUDIO_UNIT)
    set(SDK_ROOT ${VST3_SDK_ROOT})
    include(SMTG_AddVST3AuV2)
    set(steinberg_libs ${steinberg_libs} "auwrapper" "sdk_hosting")
    smtg_target_add_auv2(${target}-au
        BUNDLE_NAME ${target}
        BUNDLE_IDENTIFIER nl.igorski.vst.${target}.audiounit
        INFO_PLIST_TEMPLATE ${CMAKE_CURRENT_SOURCE_DIR}/audio-unit/Info.plist
        VST3_PLUGIN_TARGET ${target}
    )
    set_target_properties(${target} PROPERTIES XCODE_ATTRIBUTE_OTHER_LDFLAGS "-all_load")
endif()

#######################
# Steinberg libraries #
#######################

include_directories(${VSTSDK_INCLUDE_DIR})
foreach(lib IN ITEMS ${steinberg_libs})
    if(UNIX)
        target_link_libraries(${target} PRIVATE ${VST3_SDK_ROOT}/build/lib/Release/lib${lib}.a)
    elseif(WIN)
        target_link_libraries(${target} PRIVATE ${VST3_SDK_ROOT}/build/lib/Release/${lib}.lib)
    endif()
endforeach(lib)

## Include Steinberg VSTGUI

target_include_directories(${target} PUBLIC ${VST3_SDK_ROOT}/vstgui4)
target_sources(${target} PRIVATE
    ${VST3_SDK_ROOT}/vstgui4/vstgui/vstgui_uidescription.cpp
    ${VST3_SDK_ROOT}/vstgui4/vstgui/plugin-bindings/vst3editor.cpp
    ${VST3_SDK_ROOT}/public.sdk/source/vst/vstguieditor.cpp
)

#############################
# System specific libraries #
#############################

## include macOS specific libraries

IF (APPLE)
    target_sources (${target} PRIVATE
        ${VST3_SDK_ROOT}/public.sdk/source/main/macmain.cpp
        ${VST3_SDK_ROOT}/vstgui4/vstgui/vstgui_mac.mm
    )
    if(XCODE)
        if(SMTG_IOS_DEVELOPMENT_TEAM)
            ## iOS plugin
            set(target ${target}_ios)
            smtg_add_ios_vst3plugin("${SMTG_CODE_SIGN_IDENTITY_IOS}" ${target} "${target}" "${vst_sources}")
            set_target_properties(${target} PROPERTIES ${SDK_IDE_PLUGIN_EXAMPLES_FOLDER})
            target_link_libraries(${target} PRIVATE
                base_ios
                sdk_ios
                "-framework UIKit"
                "-framework CoreGraphics"
                "-framework QuartzCore"
                "-framework CoreText"
                "-framework Accelerate"
                "-framework ImageIO"
                "-framework MobileCoreServices"
            )
            target_sources(${target} PRIVATE
                ${VST3_SDK_ROOT}/vstgui4/vstgui/vstgui_ios.mm
            )
        else()
            ## macOS plugin
            set(MACOS_LIBRARIES
                "-framework Cocoa"
                "-framework OpenGL"
                "-framework Accelerate"
                "-framework QuartzCore"
                "-framework Carbon"
            )
            if (CREATE_AUDIO_UNIT)
                set(MACOS_LIBRARIES
                    ${MACOS_LIBRARIES}
                    "-framework AudioToolbox"
                    "-framework CoreMIDI"
                )
            endif()
            target_link_libraries(${target} PRIVATE ${MACOS_LIBRARIES})
        endif()
    else()
        find_library(COREFOUNDATION_FRAMEWORK CoreFoundation)
        find_library(COCOA_FRAMEWORK Cocoa)
        find_library(OPENGL_FRAMEWORK OpenGL)
        find_library(ACCELERATE_FRAMEWORK Accelerate)
        find_library(QUARTZCORE_FRAMEWORK QuartzCore)
        find_library(CARBON_FRAMEWORK Carbon)
        find_library(EXPAT Expat)
        target_link_libraries(${target} PRIVATE ${COREFOUNDATION_FRAMEWORK} ${COCOA_FRAMEWORK} ${OPENGL_FRAMEWORK} ${ACCELERATE_FRAMEWORK} ${QUARTZCORE_FRAMEWORK} ${CARBON_FRAMEWORK} ${EXPAT})
    endif()
    set_target_properties(${target} PROPERTIES
        BUNDLE true
        BUNDLE_EXTENSION "vst3"
        XCODE_ATTRIBUTE_WRAPPER_EXTENSION "vst3"
        MACOSX_BUNDLE_INFO_PLIST "${CMAKE_CURRENT_SOURCE_DIR}/mac/Info.plist"
        MACOSX_BUNDLE_BUNDLE_NAME "${project}"
        MACOSX_BUNDLE_GUI_IDENTIFIER "nl.igorski.vst.${target}"
        MACOSX_BUNDLE_ICON_FILE ""
        MACOSX_BUNDLE_SHORT_VERSION_STRING "${major_version}.${minor_version}.${release_number}"
        MACOSX_BUNDLE_COPYRIGHT "${copyright}"
    )
endif()

## include Linux specific libraries

if (LINUX)
    target_sources (${target} PRIVATE
        ${VST3_SDK_ROOT}/public.sdk/source/main/linuxmain.cpp
    )
    set(VSTGUI_LTO_COMPILER_FLAGS "-O3 -flto")
    set(VSTGUI_LTO_LINKER_FLAGS "")
    find_package(X11 REQUIRED)
    find_package(Freetype REQUIRED)
    find_package(PkgConfig REQUIRED)
    pkg_check_modules(LIBXCB REQUIRED xcb)
    pkg_check_modules(LIBXCB_UTIL REQUIRED xcb-util)
    pkg_check_modules(LIBXCB_CURSOR REQUIRED xcb-cursor)
    pkg_check_modules(LIBXCB_KEYSYMS REQUIRED xcb-keysyms)
    pkg_check_modules(LIBXCB_XKB REQUIRED xcb-xkb)
    pkg_check_modules(LIBXKB_COMMON REQUIRED xkbcommon)
    pkg_check_modules(LIBXKB_COMMON_X11 REQUIRED xkbcommon-x11)
    set(LINUX_LIBRARIES
        ${X11_LIBRARIES}
        ${FREETYPE_LIBRARIES}
        ${LIBXCB_LIBRARIES}
        ${LIBXCB_UTIL_LIBRARIES}
        ${LIBXCB_CURSOR_LIBRARIES}
        ${LIBXCB_KEYSYMS_LIBRARIES}
        ${LIBXCB_XKB_LIBRARIES}
        ${LIBXKB_COMMON_LIBRARIES}
        ${LIBXKB_COMMON_X11_LIBRARIES}
        cairo
        fontconfig
        dl
    )
    target_link_libraries(${target} PRIVATE ${LINUX_LIBRARIES})
endif()

## Include Windows specific libraries

if(WIN)
    target_sources (${target} PRIVATE
        ${VST3_SDK_ROOT}/public.sdk/source/main/dllmain.cpp
#        ${VST3_SDK_ROOT}/vstgui4/vstgui/vstgui_win32.cpp
    )
endif()

## Add the resource files to the bundle

smtg_target_add_plugin_resources(${target}
   RESOURCES ${vst_ui_descr} ${vst_resources}
)

if(APPLE)
    smtg_target_set_bundle(${target} INFOPLIST "${CMAKE_CURRENT_SOURCE_DIR}/mac/Info.plist" PREPROCESS)
    # adding PkgInfo at root level makes plugin appear as a file instead of folder
    smtg_target_add_plugin_resources(${target} RESOURCES "${CMAKE_CURRENT_SOURCE_DIR}/mac/PkgInfo" OUTPUT_SUBDIRECTORY "../")
elseif(WIN)
    target_sources(${target} PRIVATE resource/plugin.rc)
endif()

if (SMTG_CREATE_VST2_VERSION)
    message(STATUS "SMTG_CREATE_VST2_VERSION is set. A VST 2 version of the plug-in will be created (just rename the generated file from .vst3 to .vst).")
    if(XCODE)
        # fix missing VSTPluginMain symbol when also building VST 2 version
        set_target_properties(${target} PROPERTIES XCODE_ATTRIBUTE_EXPORTED_SYMBOLS_FILE "")
    endif()
    if (WIN)
        add_definitions(-D_CRT_SECURE_NO_WARNINGS)
    endif()
endif()

######################
# Installation paths #
######################

if(APPLE)
  install(TARGETS ${target}
    DESTINATION "$ENV{HOME}/Library/Audio/Plug-Ins/VST"
  )
elseif(WIN32)
  install(TARGETS ${target}
    DESTINATION "C:/Program Files (x86)/Common Files/VST3/"
  )
elseif(WIN)
  install(TARGETS ${target}
    DESTINATION "C:/Program Files/Common Files/VST3/"
  )
elseif(LINUX)
  install(TARGETS ${target}
    DESTINATION "/usr/lib/lxvst"
  )
endif()