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cmake_minimum_required(VERSION 3.10)
project(low_latency_layer
    VERSION 0.01
    LANGUAGES CXX
)

set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

set(CMAKE_CXX_STANDARD 23)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)

file(GLOB_RECURSE CXX_SOURCES src/*.cc)

set(LIBRARY_NAME VkLayer_NJ3AHXAC_LowLatency)
add_library(${LIBRARY_NAME} SHARED
    ${CXX_SOURCES}
)

find_package(Vulkan REQUIRED)
target_link_libraries(${LIBRARY_NAME}
    ${Vulkan_LIBRARIES}
)

# Copy layer into out/
set(OUTPUT_DIR "${CMAKE_BINARY_DIR}/out")
add_custom_command(TARGET ${LIBRARY_NAME} POST_BUILD
    COMMAND ${CMAKE_COMMAND} -E make_directory "${OUTPUT_DIR}"
)

add_custom_command(TARGET ${LIBRARY_NAME} POST_BUILD
    COMMAND ${CMAKE_COMMAND} -E copy_if_different
    "$<TARGET_FILE:${LIBRARY_NAME}>"
	"${OUTPUT_DIR}/"
)

add_custom_command(TARGET ${LIBRARY_NAME} POST_BUILD
    COMMAND ${CMAKE_COMMAND} -E copy_if_different
    "${CMAKE_CURRENT_SOURCE_DIR}/low_latency_layer.json"
	"${OUTPUT_DIR}/"
)

target_compile_options(${LIBRARY_NAME} PRIVATE
    # Inherited from Mesa.
    -g
    -O2
    -D_GLIBCXX_ASSERTIONS
    -D__STDC_CONSTANT_MACROS
    -D__STDC_FORMAT_MACROS
    -D__STDC_LIMIT_MACROS

    -Wall
    -Wextra
    -Wno-unused-parameter
    -Wno-unused-function
    -Wno-sign-conversion
    -Wno-missing-field-initializers
    $<$<NOT:$<CONFIG:Debug>>:-Wno-unused-variable -Wno-unused-but-set-variable>

    -Wundef
    -Wconversion 
    -Wdouble-promotion
)