Initial commit for vulkan tutorial
Following along the first 9 chapters of the Vulkan HelloTriangle tutorial.
This commit is contained in:
154
CMake/Findnlohmann_json.cmake
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154
CMake/Findnlohmann_json.cmake
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# Findnlohmann_json.cmake
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#
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# Finds the nlohmann_json library
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#
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# This will define the following variables
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#
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# nlohmann_json_FOUND
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# nlohmann_json_INCLUDE_DIRS
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#
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# and the following imported targets
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#
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# nlohmann_json::nlohmann_json
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#
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# Try to find the package using pkg-config first
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find_package(PkgConfig QUIET)
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if(PKG_CONFIG_FOUND)
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pkg_check_modules(PC_nlohmann_json QUIET nlohmann_json)
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endif()
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# Find the include directory
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find_path(nlohmann_json_INCLUDE_DIR
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NAMES nlohmann/json.hpp json.hpp
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PATHS
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${PC_nlohmann_json_INCLUDE_DIRS}
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/usr/include
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/usr/local/include
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$ENV{VULKAN_SDK}/include
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${ANDROID_NDK}/sources/third_party
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${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../external
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${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../third_party
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${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../attachments/external
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${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../attachments/third_party
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${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../attachments/include
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${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../../external
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${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../../third_party
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${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../../include
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PATH_SUFFIXES nlohmann json
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)
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# If the include directory wasn't found, use FetchContent to download and build
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if(NOT nlohmann_json_INCLUDE_DIR)
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# If not found, use FetchContent to download and build
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include(FetchContent)
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message(STATUS "nlohmann_json not found, fetching from GitHub...")
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FetchContent_Declare(
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nlohmann_json
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GIT_REPOSITORY https://github.com/nlohmann/json.git
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GIT_TAG v3.12.0 # Use a specific tag for stability
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)
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# Set policy to suppress the deprecation warning
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if(POLICY CMP0169)
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cmake_policy(SET CMP0169 OLD)
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endif()
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# Populate the content but don't configure it yet
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FetchContent_GetProperties(nlohmann_json)
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if(NOT nlohmann_json_POPULATED)
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FetchContent_Populate(nlohmann_json)
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if(ANDROID)
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# Update the minimum required CMake version before including the CMakeLists.txt
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file(READ "${nlohmann_json_SOURCE_DIR}/CMakeLists.txt" NLOHMANN_JSON_CMAKE_CONTENT)
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string(REPLACE "cmake_minimum_required(VERSION 3.1"
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"cmake_minimum_required(VERSION 3.10"
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NLOHMANN_JSON_CMAKE_CONTENT "${NLOHMANN_JSON_CMAKE_CONTENT}")
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string(REPLACE "cmake_minimum_required(VERSION 3.2"
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"cmake_minimum_required(VERSION 3.10"
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NLOHMANN_JSON_CMAKE_CONTENT "${NLOHMANN_JSON_CMAKE_CONTENT}")
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string(REPLACE "cmake_minimum_required(VERSION 3.3"
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"cmake_minimum_required(VERSION 3.10"
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NLOHMANN_JSON_CMAKE_CONTENT "${NLOHMANN_JSON_CMAKE_CONTENT}")
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string(REPLACE "cmake_minimum_required(VERSION 3.4"
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"cmake_minimum_required(VERSION 3.10"
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NLOHMANN_JSON_CMAKE_CONTENT "${NLOHMANN_JSON_CMAKE_CONTENT}")
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string(REPLACE "cmake_minimum_required(VERSION 3.5"
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"cmake_minimum_required(VERSION 3.10"
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NLOHMANN_JSON_CMAKE_CONTENT "${NLOHMANN_JSON_CMAKE_CONTENT}")
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string(REPLACE "cmake_minimum_required(VERSION 3.6"
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"cmake_minimum_required(VERSION 3.10"
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NLOHMANN_JSON_CMAKE_CONTENT "${NLOHMANN_JSON_CMAKE_CONTENT}")
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string(REPLACE "cmake_minimum_required(VERSION 3.7"
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"cmake_minimum_required(VERSION 3.10"
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NLOHMANN_JSON_CMAKE_CONTENT "${NLOHMANN_JSON_CMAKE_CONTENT}")
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string(REPLACE "cmake_minimum_required(VERSION 3.8"
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"cmake_minimum_required(VERSION 3.10"
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NLOHMANN_JSON_CMAKE_CONTENT "${NLOHMANN_JSON_CMAKE_CONTENT}")
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string(REPLACE "cmake_minimum_required(VERSION 3.9"
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"cmake_minimum_required(VERSION 3.10"
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NLOHMANN_JSON_CMAKE_CONTENT "${NLOHMANN_JSON_CMAKE_CONTENT}")
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file(WRITE "${nlohmann_json_SOURCE_DIR}/CMakeLists.txt" "${NLOHMANN_JSON_CMAKE_CONTENT}")
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endif()
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# Now add the subdirectory manually
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add_subdirectory(${nlohmann_json_SOURCE_DIR} ${nlohmann_json_BINARY_DIR})
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else()
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# If already populated, just make it available
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FetchContent_MakeAvailable(nlohmann_json)
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endif()
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# Get the include directory from the target
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if(TARGET nlohmann_json)
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get_target_property(nlohmann_json_INCLUDE_DIR nlohmann_json INTERFACE_INCLUDE_DIRECTORIES)
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if(NOT nlohmann_json_INCLUDE_DIR)
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# If we can't get the include directory from the target, use the source directory
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set(nlohmann_json_INCLUDE_DIR ${nlohmann_json_SOURCE_DIR}/include)
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endif()
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else()
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# nlohmann_json might not create a target, so use the source directory
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set(nlohmann_json_INCLUDE_DIR ${nlohmann_json_SOURCE_DIR}/include)
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endif()
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endif()
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# Set the variables
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(nlohmann_json
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REQUIRED_VARS nlohmann_json_INCLUDE_DIR
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)
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if(nlohmann_json_FOUND)
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set(nlohmann_json_INCLUDE_DIRS ${nlohmann_json_INCLUDE_DIR})
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# Create an imported target
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if(NOT TARGET nlohmann_json::nlohmann_json)
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add_library(nlohmann_json::nlohmann_json INTERFACE IMPORTED)
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set_target_properties(nlohmann_json::nlohmann_json PROPERTIES
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INTERFACE_INCLUDE_DIRECTORIES "${nlohmann_json_INCLUDE_DIRS}"
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)
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endif()
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elseif(TARGET nlohmann_json)
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# If find_package_handle_standard_args failed but we have a nlohmann_json target from FetchContent
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# Create an alias for the nlohmann_json target
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if(NOT TARGET nlohmann_json::nlohmann_json)
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add_library(nlohmann_json::nlohmann_json ALIAS nlohmann_json)
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endif()
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# Set variables to indicate that nlohmann_json was found
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set(nlohmann_json_FOUND TRUE)
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set(NLOHMANN_JSON_FOUND TRUE)
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# Set include directories
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get_target_property(nlohmann_json_INCLUDE_DIR nlohmann_json INTERFACE_INCLUDE_DIRECTORIES)
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if(nlohmann_json_INCLUDE_DIR)
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set(nlohmann_json_INCLUDE_DIRS ${nlohmann_json_INCLUDE_DIR})
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else()
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# If we can't get the include directory from the target, use the source directory
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set(nlohmann_json_INCLUDE_DIR ${nlohmann_json_SOURCE_DIR}/include)
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set(nlohmann_json_INCLUDE_DIRS ${nlohmann_json_INCLUDE_DIR})
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endif()
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endif()
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mark_as_advanced(nlohmann_json_INCLUDE_DIR)
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