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FindVulkan: Add version support

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The version is constructed in the form <major>.<minor>.<patch> e.g.
1.2.189.
This commit is contained in:
Ralf Habacker
2021-10-27 15:50:04 +02:00
parent 472bdf5c8d
commit caeaabb356
2 changed files with 45 additions and 11 deletions
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5
Help/release/dev/FindVulkan-version.rst Normal file
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@@ -0,0 +1,5 @@
FindVulkan-version
------------------
* The :module:`FindVulkan` module gained a ``Vulkan_VERSION`` result
variable reporting the version number.

51
Modules/FindVulkan.cmake
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@@ -39,18 +39,29 @@ This module defines :prop_tgt:`IMPORTED` targets if Vulkan has been found:
Result Variables
^^^^^^^^^^^^^^^^
This module defines the following variables::
This module defines the following variables:
Vulkan_FOUND - "True" if Vulkan was found
Vulkan_INCLUDE_DIRS - include directories for Vulkan
Vulkan_LIBRARIES - link against this library to use Vulkan
``Vulkan_FOUND``
set to true if Vulkan was found
``Vulkan_INCLUDE_DIRS``
include directories for Vulkan
``Vulkan_LIBRARIES``
link against this library to use Vulkan
``Vulkan_VERSION``
.. versionadded:: 3.23
The module will also define three cache variables::
value from ``vulkan/vulkan_core.h``
Vulkan_INCLUDE_DIR - the Vulkan include directory
Vulkan_LIBRARY - the path to the Vulkan library
Vulkan_GLSLC_EXECUTABLE - the path to the GLSL SPIR-V compiler
Vulkan_GLSLANG_VALIDATOR_EXECUTABLE - the path to the glslangValidator tool
The module will also defines these cache variables:
``Vulkan_INCLUDE_DIR``
the Vulkan include directory
``Vulkan_LIBRARY``
the path to the Vulkan library
``Vulkan_GLSLC_EXECUTABLE``
the path to the GLSL SPIR-V compiler
``Vulkan_GLSLANG_VALIDATOR_EXECUTABLE``
the path to the glslangValidator tool
Hints
^^^^^
@@ -125,10 +136,28 @@ endif()
set(Vulkan_LIBRARIES ${Vulkan_LIBRARY})
set(Vulkan_INCLUDE_DIRS ${Vulkan_INCLUDE_DIR})
# detect version e.g 1.2.189
set(Vulkan_VERSION "")
if(Vulkan_INCLUDE_DIR)
set(VULKAN_CORE_H ${Vulkan_INCLUDE_DIR}/vulkan/vulkan_core.h)
if(EXISTS ${VULKAN_CORE_H})
file(STRINGS ${VULKAN_CORE_H} VulkanHeaderVersionLine REGEX "^#define VK_HEADER_VERSION ")
string(REGEX MATCHALL "[0-9]+" VulkanHeaderVersion "${VulkanHeaderVersionLine}")
file(STRINGS ${VULKAN_CORE_H} VulkanHeaderVersionLine REGEX "^#define VK_HEADER_VERSION_COMPLETE ")
# "#define VK_HEADER_VERSION_COMPLETE VK_MAKE_API_VERSION(0, 1, 2, VK_HEADER_VERSION)"
string(REGEX REPLACE ".*\\([0_9]+[, ]+([0-9]+)[, ]+([0-9]+)[, ].*\\)"
"\\1.\\2.${VulkanHeaderVersion}" Vulkan_VERSION "${VulkanHeaderVersionLine}")
endif()
endif()
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
find_package_handle_standard_args(Vulkan
DEFAULT_MSG
Vulkan_LIBRARY Vulkan_INCLUDE_DIR)
REQUIRED_VARS
Vulkan_LIBRARY
Vulkan_INCLUDE_DIR
VERSION_VAR
Vulkan_VERSION
)
mark_as_advanced(Vulkan_INCLUDE_DIR Vulkan_LIBRARY Vulkan_GLSLC_EXECUTABLE
Vulkan_GLSLANG_VALIDATOR_EXECUTABLE)