mirror of
https://github.com/luxfi/lux-vulkan.git
synced 2026-10-30 16:20:31 +00:00
zeekay
18e6cee0ae
Core Vulkan 1.1 compute implementing backend_api.h. SPIR-V kernels via create_kernel_from_bundle; GLSL->SPIR-V at runtime via libshaderc for create_kernel_from_source. Runs live on macOS through MoltenVK; native ICDs on Linux. Verified: Apple M1 Max vector-add, bit-identical to CPU reference.
116 lines
4.5 KiB
CMake
116 lines
4.5 KiB
CMake
cmake_minimum_required(VERSION 3.20)
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project(lux-vulkan VERSION 0.1.0 LANGUAGES CXX)
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# lux-vulkan is a PLUGIN (shared library) loaded by lux-accel at runtime.
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# It links nothing from lux-accel — it only consumes backend_api.h headers.
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# Locate lux-accel for the backend_api.h header (header-only consumption).
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find_package(lux-accel CONFIG QUIET)
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if(NOT lux-accel_FOUND)
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if(NOT LUXACCEL_INCLUDE_DIR)
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set(LUXACCEL_INCLUDE_DIR
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"${CMAKE_CURRENT_SOURCE_DIR}/../lux-accel/include"
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"${CMAKE_CURRENT_SOURCE_DIR}/../install/include")
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endif()
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endif()
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add_library(lux_vulkan MODULE
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src/vulkan_plugin.cpp
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)
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target_compile_features(lux_vulkan PRIVATE cxx_std_17)
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target_include_directories(lux_vulkan
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PRIVATE
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$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
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${LUXACCEL_INCLUDE_DIR}
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)
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if(lux-accel_FOUND AND TARGET lux::accel)
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target_include_directories(lux_vulkan PRIVATE
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$<TARGET_PROPERTY:lux::accel,INTERFACE_INCLUDE_DIRECTORIES>)
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endif()
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# ── Vulkan runtime ──────────────────────────────────────────────────────────
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# Prefer CMake's FindVulkan (honours $VULKAN_SDK). Fall back to a manual search
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# that covers Homebrew (vulkan-headers + vulkan-loader) and system installs.
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set(_lux_vk_found FALSE)
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find_package(Vulkan QUIET)
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if(Vulkan_FOUND)
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target_link_libraries(lux_vulkan PRIVATE Vulkan::Vulkan)
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set(_lux_vk_found TRUE)
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message(STATUS "lux-vulkan: using Vulkan::Vulkan (${Vulkan_LIBRARY})")
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else()
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find_path(VK_INCLUDE_DIR vulkan/vulkan.h
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HINTS /opt/homebrew/opt/vulkan-headers/include
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/usr/local/include /opt/homebrew/include /usr/include)
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find_library(VK_LIBRARY NAMES vulkan vulkan-1
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HINTS /opt/homebrew/opt/vulkan-loader/lib
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/usr/local/lib /opt/homebrew/lib /usr/lib)
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if(VK_INCLUDE_DIR AND VK_LIBRARY)
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target_include_directories(lux_vulkan PRIVATE ${VK_INCLUDE_DIR})
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target_link_libraries(lux_vulkan PRIVATE ${VK_LIBRARY})
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set(_lux_vk_found TRUE)
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message(STATUS "lux-vulkan: using ${VK_LIBRARY} (headers: ${VK_INCLUDE_DIR})")
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endif()
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endif()
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if(_lux_vk_found)
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target_compile_definitions(lux_vulkan PRIVATE LUX_HAS_VULKAN=1)
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# ── shaderc (optional): enables create_kernel_from_source (GLSL -> SPIR-V) ──
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find_path(SHADERC_INCLUDE_DIR shaderc/shaderc.hpp
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HINTS /opt/homebrew/opt/shaderc/include
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/usr/local/include /opt/homebrew/include /usr/include)
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find_library(SHADERC_LIBRARY NAMES shaderc_shared shaderc_combined shaderc
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HINTS /opt/homebrew/opt/shaderc/lib
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/usr/local/lib /opt/homebrew/lib /usr/lib)
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if(SHADERC_INCLUDE_DIR AND SHADERC_LIBRARY)
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target_include_directories(lux_vulkan PRIVATE ${SHADERC_INCLUDE_DIR})
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target_link_libraries(lux_vulkan PRIVATE ${SHADERC_LIBRARY})
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target_compile_definitions(lux_vulkan PRIVATE LUX_HAS_SHADERC=1)
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message(STATUS "lux-vulkan: GLSL source compilation enabled via ${SHADERC_LIBRARY}")
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else()
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message(STATUS "lux-vulkan: libshaderc not found; create_kernel_from_source "
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"disabled (create_kernel_from_bundle with SPIR-V still works)")
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endif()
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else()
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message(STATUS "lux-vulkan: no Vulkan runtime found; building stub plugin "
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"(is_available() returns 0)")
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endif()
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# Plugin settings — hidden visibility, .plugin extension matching loader pattern.
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set_target_properties(lux_vulkan PROPERTIES
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CXX_VISIBILITY_PRESET hidden
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VISIBILITY_INLINES_HIDDEN ON
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PREFIX ""
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SUFFIX ".plugin"
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)
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include(GNUInstallDirs)
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install(TARGETS lux_vulkan
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LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}/lux/plugins
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)
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# Smoke test — dlopens the plugin; on a host with a Vulkan ICD it runs a real
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# GLSL vector-add dispatch and verifies the result.
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option(LUX_VULKAN_BUILD_TESTS "Build the lux-vulkan plugin smoke test" ON)
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if(LUX_VULKAN_BUILD_TESTS AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/test/test_load.cpp")
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add_executable(lux_vulkan_test_load test/test_load.cpp)
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target_compile_features(lux_vulkan_test_load PRIVATE cxx_std_17)
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target_include_directories(lux_vulkan_test_load PRIVATE ${LUXACCEL_INCLUDE_DIR})
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if(lux-accel_FOUND AND TARGET lux::accel)
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target_include_directories(lux_vulkan_test_load PRIVATE
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$<TARGET_PROPERTY:lux::accel,INTERFACE_INCLUDE_DIRECTORIES>)
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endif()
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if(NOT WIN32)
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target_link_libraries(lux_vulkan_test_load PRIVATE ${CMAKE_DL_LIBS})
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endif()
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add_dependencies(lux_vulkan_test_load lux_vulkan)
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enable_testing()
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add_test(NAME lux_vulkan_load
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COMMAND lux_vulkan_test_load $<TARGET_FILE:lux_vulkan>)
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endif()
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