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qt5base-lts/cmake/FindWrapVulkanHeaders.cmake

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CMake: Fix Vulkan to be found when targeting Android Introduce two new packages WrapVulkanHeaders and WrapVulkan similar to the OpenSSL wrapper packages. WrapVulkanHeaders uses FindVulkan and is marked as found if Vulkan headers are found (that's the only part the Qt build requires). The WrapVulkan package is currently not used, but is there for symmetry. The Vulkan feature is now disabled by default on QNX, because the QNX toolchain file in the CI does not set CMAKE_FIND_ROOT_PATH_MODE-like variables and CMake ends up finding host Vulkan headers causing the build to break. Pick-to: 6.2 Fixes: QTBUG-92157 Change-Id: I05309821f866456cd42e7f85bf8b76ba099df656 Reviewed-by: Alexey Edelev <alexey.edelev@qt.io> Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io> Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2021-06-30 10:37:14 +00:00
# We can't create the same interface imported target multiple times, CMake will complain if we do
# that. This can happen if the find_package call is done in multiple different subdirectories.
if(TARGET WrapVulkanHeaders::WrapVulkanHeaders)
set(WrapVulkanHeaders_FOUND ON)
return()
endif()
set(WrapVulkanHeaders_FOUND OFF)
find_package(Vulkan ${WrapVulkanHeaders_FIND_VERSION} QUIET)
# We are interested only in include headers. The libraries might be missing, so we can't check the
# _FOUND variable.
if(Vulkan_INCLUDE_DIR)
set(WrapVulkanHeaders_FOUND ON)
add_library(WrapVulkanHeaders::WrapVulkanHeaders INTERFACE IMPORTED)
target_include_directories(WrapVulkanHeaders::WrapVulkanHeaders INTERFACE
${Vulkan_INCLUDE_DIR})
CMake: Fix MoltenVK headers to be found on macOS This fixes building Qt with Vulkan support on macOS which aside from the regular Vulkan headers also needs the location of the MoltenVK headers. This assumes the usage of the LunarG Vulkan SDK for macOS. Pick-to: 6.2 Fixes: QTBUG-80576 Change-Id: I030b2fdeaafdd7bf5ebe6fb4c9ea860917e84056 Reviewed-by: Alexey Edelev <alexey.edelev@qt.io> Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2021-07-28 09:14:32 +00:00
CMake: Make WrapVulkanHeaders target optional for QtGui consumers If Vulkan headers are present on the system when qtbase is configured, QtGui and QtOpenGL should be compiled with Vulkan support. If a user project uses a Qt built with Vulkan support, but their system is missing Vulkan headers, the project configuration needs to succeed. The project will get compilation errors if it uses Vulkan headers, but that's intended. This use case was broken when fixing Vulkan to be found when building Qt for Android. Fix the regression with a combination of things 1) Mark the WrapVulkanHeaders package as optional (already the case) 2) Use the include directories directly when compiling Gui and OpenGL 3) Propagate WrapVulkanHeaders::WrapVulkanHeaders link requirement to consumers only if the target exists. It won't exist if Vulkan include dirs are not found This also requires some changes in pri and prl file generation. For prl file generation, we don't want to link to the WrapVulkanHeaders target, so we filter out all dependencies that use TARGET_NAME_IF_EXISTS for anything that calls __qt_internal_walk_libs which includes qt_collect_libs. For pri files, we make sure to generate a uses=vulkan/nolink clause by inspecting a new _qt_is_nolink_target property on the target. We also don't add include dirs to the pri file if the new _qt_skip_include_dir_for_pri property is set. This is intended for Vulkan, because there is separate qmake logic to try and find the include dirs when configuring a user project. As a drive-by, fix nolink handling for WrapOpenSSLHeaders. Amends bb25536a3db657b41ae31e1690d230ef8722b57d Amends 7b9904849fe1a43f0db8216076a9e974ebca5c78 Pick-to: 6.2 Fixes: QTBUG-95391 Change-Id: I21e2f4be5c386f9e40033e4691f4786a91ba0e2d Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Alexey Edelev <alexey.edelev@qt.io> Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2021-07-27 11:54:56 +00:00
set_target_properties(WrapVulkanHeaders::WrapVulkanHeaders PROPERTIES
_qt_is_nolink_target TRUE)
set_target_properties(WrapVulkanHeaders::WrapVulkanHeaders PROPERTIES
_qt_skip_include_dir_for_pri TRUE)
CMake: Fix MoltenVK headers to be found on macOS This fixes building Qt with Vulkan support on macOS which aside from the regular Vulkan headers also needs the location of the MoltenVK headers. This assumes the usage of the LunarG Vulkan SDK for macOS. Pick-to: 6.2 Fixes: QTBUG-80576 Change-Id: I030b2fdeaafdd7bf5ebe6fb4c9ea860917e84056 Reviewed-by: Alexey Edelev <alexey.edelev@qt.io> Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2021-07-28 09:14:32 +00:00
# Also propagate MoltenVK include directory on Apple platforms if found.
# Assumes the folder structure of the LunarG Vulkan SDK.
if(APPLE)
set(__qt_molten_vk_include_path "${Vulkan_INCLUDE_DIR}/../../MoltenVK/include")
get_filename_component(
__qt_molten_vk_include_path
"${__qt_molten_vk_include_path}" ABSOLUTE)
if(EXISTS "${__qt_molten_vk_include_path}")
target_include_directories(WrapVulkanHeaders::WrapVulkanHeaders INTERFACE
${__qt_molten_vk_include_path})
endif()
endif()
CMake: Fix Vulkan to be found when targeting Android Introduce two new packages WrapVulkanHeaders and WrapVulkan similar to the OpenSSL wrapper packages. WrapVulkanHeaders uses FindVulkan and is marked as found if Vulkan headers are found (that's the only part the Qt build requires). The WrapVulkan package is currently not used, but is there for symmetry. The Vulkan feature is now disabled by default on QNX, because the QNX toolchain file in the CI does not set CMAKE_FIND_ROOT_PATH_MODE-like variables and CMake ends up finding host Vulkan headers causing the build to break. Pick-to: 6.2 Fixes: QTBUG-92157 Change-Id: I05309821f866456cd42e7f85bf8b76ba099df656 Reviewed-by: Alexey Edelev <alexey.edelev@qt.io> Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io> Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2021-06-30 10:37:14 +00:00
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(WrapVulkanHeaders DEFAULT_MSG Vulkan_INCLUDE_DIR)
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