84 lines
5 KiB
CMake
84 lines
5 KiB
CMake
function(check_vulkan_version)
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cmake_parse_arguments(VULKAN_CHECK_VERSION "" "INCLUDE_DIR" "" ${ARGN})
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message(STATUS "Ensuring the currently installed driver supports the Vulkan version requested by the Vulkan Header.")
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# Get the current Vulkan Header version (e.g. 1.2.189).
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# This snippet is based on: https://gitlab.kitware.com/cmake/cmake/-/blob/v3.23.1/Modules/FindVulkan.cmake#L140-156
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if(VULKAN_CHECK_VERSION_INCLUDE_DIR)
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set(VULKAN_CORE_H ${VULKAN_CHECK_VERSION_INCLUDE_DIR}/vulkan/vulkan_core.h)
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if(EXISTS ${VULKAN_CORE_H})
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file(STRINGS ${VULKAN_CORE_H} VULKAN_HEADER_VERSION_LINE REGEX "^#define VK_HEADER_VERSION ")
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string(REGEX MATCHALL "[0-9]+" VULKAN_HEADER_VERSION "${VULKAN_HEADER_VERSION_LINE}")
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file(STRINGS ${VULKAN_CORE_H} VULKAN_HEADER_VERSION_LINE2 REGEX "^#define VK_HEADER_VERSION_COMPLETE ")
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if(${VULKAN_HEADER_VERSION_LINE2})
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string(REGEX MATCHALL "[0-9]+" VULKAN_HEADER_VERSION2 "${VULKAN_HEADER_VERSION_LINE2}")
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list(LENGTH VULKAN_HEADER_VERSION2 _len)
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# Versions >= 1.2.175 have an additional numbers in front of e.g. '0, 1, 2' instead of '1, 2'
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if(_len EQUAL 3)
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list(REMOVE_AT VULKAN_HEADER_VERSION2 0)
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endif()
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list(APPEND VULKAN_HEADER_VERSION2 ${VULKAN_HEADER_VERSION})
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list(JOIN VULKAN_HEADER_VERSION2 "." VULKAN_HEADER_VERSION)
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else()
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file(STRINGS ${VULKAN_CORE_H} VULKAN_HEADER_API_VERSION_1_2 REGEX "^#define VK_API_VERSION_1_2.*")
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if(NOT ${VULKAN_HEADER_API_VERSION_1_2} STREQUAL "")
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set(VULKAN_HEADER_VERSION "1.2.${VULKAN_HEADER_VERSION}")
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else()
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file(STRINGS ${VULKAN_CORE_H} VULKAN_HEADER_API_VERSION_1_1 REGEX "^#define VK_API_VERSION_1_1.*")
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if(NOT ${VULKAN_HEADER_API_VERSION_1_1} STREQUAL "")
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set(VULKAN_HEADER_VERSION "1.1.${VULKAN_HEADER_VERSION}")
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else()
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message(FATAL_ERROR "'${VULKAN_CORE_H}' does not contain a supported Vulkan version. Probably because its < 1.2.0.")
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endif()
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endif()
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endif()
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else()
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message(FATAL_ERROR "'${VULKAN_CORE_H}' does not exist. Try calling 'find_package(Vulkan REQUIRED)' before you call this function or set 'Vulkan_INCLUDE_DIR' manually!")
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return()
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endif()
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else()
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message(FATAL_ERROR "Invalid Vulkan include directory given. Try calling 'find_package(Vulkan REQUIRED)' before you call this function or set 'Vulkan_INCLUDE_DIR' manually!")
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return()
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endif()
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message(STATUS "Found Vulkan Header version ${VULKAN_HEADER_VERSION}.")
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# Get Vulkan version supported by driver
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find_program(VULKAN_INFO_PATH NAMES vulkaninfo)
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if(${VULKAN_INFO_PATH})
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message(FATAL_ERROR "vulkaninfo not found. The Vulkan SDK might not be installed properly.")
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return()
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endif()
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execute_process(COMMAND "vulkaninfo"
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OUTPUT_VARIABLE VULKAN_INFO_OUTPUT)
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if(${VULKAN_INFO_OUTPUT} MATCHES ".*Vulkan version ([0-9]+.[0-9]+.[0-9]+).*")
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set(VULKAN_DRIVER_VERSION ${CMAKE_MATCH_1})
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message(STATUS "vulkaninfo reported supported version ${VULKAN_DRIVER_VERSION}")
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else()
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message(FATAL_ERROR "No valid version found in vulkaninfo. Does your GPU (driver) support Vulkan?")
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return()
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endif()
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# Compare driver and header version
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if(${VULKAN_DRIVER_VERSION} VERSION_LESS ${VULKAN_HEADER_VERSION})
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# Version missmatch. Let us check if the minor version is the same.
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if(${VULKAN_DRIVER_VERSION} MATCHES "[0-9]+.([0-9]+).[0-9]+")
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set(VULKAN_DRIVER_MINOR_VERSION ${CMAKE_MATCH_1})
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else()
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message(FATAL_ERROR "Invalid Vulkan driver version '${VULKAN_DRIVER_VERSION}' found. Expected version in the following format: '[0-9]+.[0-9]+.[0-9]+'")
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endif()
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if(${VULKAN_HEADER_VERSION} MATCHES "[0-9]+.([0-9]+).[0-9]+")
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set(VULKAN_HEADER_MINOR_VERSION ${CMAKE_MATCH_1})
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else()
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message(FATAL_ERROR "Invalid Vulkan Header version '${VULKAN_HEADER_VERSION}' found. Expected version in the following format: '[0-9]+.[0-9]+.[0-9]+'")
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endif()
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if(${VULKAN_DRIVER_MINOR_VERSION} EQUAL ${VULKAN_HEADER_MINOR_VERSION})
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message(WARNING "Your GPU driver does not support Vulkan > ${VULKAN_DRIVER_VERSION}, but you try to use Vulkan Header ${VULKAN_HEADER_VERSION}. At least your driver supports the same minor version (${VULKAN_DRIVER_MINOR_VERSION}), so this should be fine but keep it in mind if encounter some strange behavior.")
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else()
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message(FATAL_ERROR "Your GPU driver does not support Vulkan > ${VULKAN_DRIVER_VERSION}, but you try to use Vulkan Header ${VULKAN_HEADER_VERSION}.")
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endif()
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else()
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message(STATUS "Vulkan version check successful!")
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endif()
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endfunction()
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