vcpkg/ports/vulkan/portfile.cmake
Mark Ian Holland f1eb3aa4b9 Vulkan port (#4664)
* [Vulkan] Add a vulkan port based on the cuda port

* Add VULKAN_SDK env variable to whitelist

* * Added some additional diagnostic information
* Corrected if NOT exists statement
2018-11-14 15:25:50 -08:00

37 lines
1.7 KiB
CMake

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