CMakeLists.txt

cmake_minimum_required(VERSION 3.11)
set(CMAKE_CXX_STANDARD 11)
project(VulkanTransposition C)

find_package(Vulkan REQUIRED)
find_program(
	GLSL_VALIDATOR
	glslangValidator
	DOC "Vulkan Shader Compiler (glslangValidator)"
	REQUIRED
)

add_executable(${PROJECT_NAME} VulkanTransposition.c)

if (MSVC)
	set_property(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} PROPERTY VS_STARTUP_PROJECT ${PROJECT_NAME})
	add_definitions(-D_CRT_SECURE_NO_WARNINGS)
endif()

target_compile_definitions(${PROJECT_NAME} PUBLIC -DSHADER_DIR="${CMAKE_CURRENT_SOURCE_DIR}/shaders/")
#target_compile_features(${PROJECT_NAME} PUBLIC cxx_constexpr)

target_link_libraries(${PROJECT_NAME} PUBLIC Vulkan::Vulkan m)

#Build shaders routine
file(GLOB_RECURSE COMP_SOURCE_FILES
    "${CMAKE_CURRENT_SOURCE_DIR}/shaders/*.comp"
    )
foreach(INPUT_SHADER ${COMP_SOURCE_FILES})
	get_filename_component(DIR ${INPUT_SHADER} DIRECTORY)
	get_filename_component(FILE_NAME ${INPUT_SHADER} NAME_WE)
	set(OUTPUT_BINARY "${DIR}/${FILE_NAME}.spv")

	add_custom_command(
		OUTPUT ${OUTPUT_BINARY}
		COMMAND ${GLSL_VALIDATOR} -V ${INPUT_SHADER} -o ${OUTPUT_BINARY}
		DEPENDS ${INPUT_SHADER}
        )
	list(APPEND SPIRV_BINARY_FILES ${OUTPUT_BINARY})
endforeach(INPUT_SHADER)

add_custom_target(
    compile_shaders
    DEPENDS ${SPIRV_BINARY_FILES}
    )
add_dependencies(${PROJECT_NAME} compile_shaders)