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45 lines
2.1 KiB
CMake
45 lines
2.1 KiB
CMake
# Due to the complexity involved, this package doesn't install the Vulkan SDK.
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# It instead verifies that Vulkan is installed.
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# Other packages can depend on this package to declare a dependency on Vulkan.
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include(vcpkg_common_functions)
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message(STATUS "Querying VULKAN_SDK Enviroment variable")
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file(TO_CMAKE_PATH "$ENV{VULKAN_SDK}" VULKAN_DIR)
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set(VULKAN_INCLUDE "${VULKAN_DIR}/include/vulkan/")
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set(VULKAN_ERROR_DL "Before continuing, please download and install Vulkan from:\n https://vulkan.lunarg.com/sdk/home\nIf you have already downloaded it, make sure the VULKAN_SDK environment variable is set to vulkan's installation root.")
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if(NOT DEFINED ENV{VULKAN_SDK})
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message(FATAL_ERROR "Could not find Vulkan SDK. ${VULKAN_ERROR_DL}")
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endif()
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message(STATUS "Searching " ${VULKAN_INCLUDE} " for vulkan.h")
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if(NOT EXISTS "${VULKAN_INCLUDE}/vulkan.h")
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message(FATAL_ERROR "Could not find vulkan.h. ${VULKAN_ERROR_DL}")
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endif()
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message(STATUS "Found vulkan.h")
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# Check if the user left the version in the installation directory e.g. c:/vulkanSDK/1.1.82.1/
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if(VULKAN_DIR MATCHES "(([0-9]+)\\.([0-9]+)\\.([0-9]+)\\.([0-9]+))")
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set(VULKAN_VERSION "${CMAKE_MATCH_1}")
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set(VULKAN_MAJOR "${CMAKE_MATCH_2}")
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set(VULKAN_MINOR "${CMAKE_MATCH_3}")
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set(VULKAN_PATCH "${CMAKE_MATCH_4}")
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message(STATUS "Found Vulkan SDK version ${VULKAN_VERSION}")
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set(VULKAN_REQUIRED_VERSION "1.1.82.1")
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if (VULKAN_MAJOR LESS 1 OR VULKAN_MINOR LESS 1 OR VULKAN_PATCH LESS 82)
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message(FATAL_ERROR "Vulkan ${VULKAN_VERSION} but ${VULKAN_REQUIRED_VERSION} is required. Please download and install a more recent version from:"
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"\n https://vulkan.lunarg.com/sdk/home\n")
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endif()
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endif()
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if (EXISTS ${VULKAN_DIR}/../LICENSE.txt)
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configure_file(${VULKAN_DIR}/../LICENSE.txt ${CURRENT_PACKAGES_DIR}/share/vulkan/copyright COPYONLY)
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elseif(EXISTS ${VULKAN_DIR}/LICENSE.txt)
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configure_file(${VULKAN_DIR}/LICENSE.txt ${CURRENT_PACKAGES_DIR}/share/vulkan/copyright COPYONLY)
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else()
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configure_file(${CURRENT_PORT_DIR}/LICENSE.txt ${CURRENT_PACKAGES_DIR}/share/vulkan/copyright COPYONLY)
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endif()
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SET(VCPKG_POLICY_EMPTY_PACKAGE enabled)
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