JUCE SDK integration.

examples/juce/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.25)
+project(xtc_juce_examples VERSION 0.1.0 LANGUAGES C CXX)
+set(XTC_JUCE_ROOT "" CACHE PATH "External JUCE source checkout")
+if(NOT EXISTS "${XTC_JUCE_ROOT}/modules/juce_audio_utils/juce_audio_utils.h")
+    message(FATAL_ERROR "Set XTC_JUCE_ROOT to an external JUCE checkout; normal xtc builds do not download JUCE")
+endif()
+if(NOT UNIX OR APPLE)
+    message(FATAL_ERROR "The xtc C core bridge is currently qualified on Linux/POSIX only")
+endif()
+message(STATUS "JUCE is AGPLv3/commercial: review the external SDK LICENSE.md before distributing these binaries")
+set(JUCE_BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
+set(JUCE_BUILD_EXTRAS OFF CACHE BOOL "" FORCE)
+add_subdirectory("${XTC_JUCE_ROOT}" juce-sdk EXCLUDE_FROM_ALL)
+find_program(XTC_MAKE_EXECUTABLE NAMES gmake make REQUIRED)
+get_filename_component(XTC_ROOT "${CMAKE_CURRENT_SOURCE_DIR}/../.." ABSOLUTE)
+set(XTC_CORE_BUILD "${CMAKE_CURRENT_BINARY_DIR}/c-core")
+add_custom_target(xtc-juce-core
+    COMMAND "${XTC_MAKE_EXECUTABLE}" -C "${XTC_ROOT}"
+        "BUILD_DIR=${XTC_CORE_BUILD}" "CC=${CMAKE_C_COMPILER}"
+        "CFLAGS=-O2 -g -fPIC -std=c99 -Wall -Wextra -Wpedantic -Wconversion -Wshadow -Iinclude"
+        PKG_CONFIG=false FLTK_CONFIG=false "${XTC_CORE_BUILD}/libxtc.a"
+    BYPRODUCTS "${XTC_CORE_BUILD}/libxtc.a"
+    VERBATIM USES_TERMINAL)
+add_library(xtc-juce-c-core STATIC IMPORTED)
+set_target_properties(xtc-juce-c-core PROPERTIES
+    IMPORTED_LOCATION "${XTC_CORE_BUILD}/libxtc.a"
+    INTERFACE_INCLUDE_DIRECTORIES "${XTC_ROOT}/include")
+add_dependencies(xtc-juce-c-core xtc-juce-core)
+
+juce_add_plugin(XtcJuceSynth
+    COMPANY_NAME xtc
+    BUNDLE_ID org.xtc.juce.synth
+    PLUGIN_MANUFACTURER_CODE Xtca
+    PLUGIN_CODE Xjcs
+    PRODUCT_NAME "xtc JUCE Synth"
+    IS_SYNTH TRUE
+    NEEDS_MIDI_INPUT TRUE
+    NEEDS_MIDI_OUTPUT FALSE
+    EDITOR_WANTS_KEYBOARD_FOCUS FALSE
+    COPY_PLUGIN_AFTER_BUILD FALSE
+    FORMATS VST3 Standalone
+    NEEDS_WEB_BROWSER FALSE
+    NEEDS_CURL FALSE)
+target_sources(XtcJuceSynth PRIVATE Processor.cpp Editor.cpp PluginEntry.cpp)
+target_compile_features(XtcJuceSynth PUBLIC cxx_std_17)
+target_compile_definitions(XtcJuceSynth PUBLIC
+    JUCE_WEB_BROWSER=0 JUCE_USE_CURL=0 JUCE_VST3_CAN_REPLACE_VST2=0 JUCE_PLUGINHOST_VST3=1
+    )
+target_include_directories(XtcJuceSynth PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}" "${XTC_ROOT}/include")
+target_link_libraries(XtcJuceSynth PRIVATE xtc-juce-c-core juce::juce_audio_utils juce::juce_dsp
+    PUBLIC juce::juce_recommended_config_flags juce::juce_recommended_warning_flags)
+
+add_executable(xtc-juce-render Render.cpp)
+set_target_properties(xtc-juce-render PROPERTIES RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/xtc-juce-render_artefacts/$<CONFIG>")
+target_compile_features(xtc-juce-render PRIVATE cxx_std_17)
+target_include_directories(xtc-juce-render PRIVATE "${XTC_JUCE_ROOT}/modules")
+# Exact float comparisons intentionally check bit-identical C bridge output.
+set_source_files_properties(Render.cpp PROPERTIES COMPILE_OPTIONS "-Wno-float-equal")
+target_compile_definitions(xtc-juce-render PRIVATE JUCE_GLOBAL_MODULE_SETTINGS_INCLUDED=1)
+target_link_libraries(xtc-juce-render PRIVATE XtcJuceSynth xtc-juce-c-core)
+enable_testing()
+add_test(NAME xtc-juce-processor COMMAND xtc-juce-render --self-test)
+
+add_test(NAME xtc-juce-vst3 COMMAND xtc-juce-render --host-check "$<TARGET_FILE_DIR:XtcJuceSynth_VST3>/../..")