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vulkan-tutorial/CMake/Findstb.cmake
Abdelrahman d57dd446d1 Initial commit for vulkan tutorial
Following along the first 9 chapters of the Vulkan HelloTriangle
tutorial.
2025-12-06 00:20:08 +00:00

86 lines
2.3 KiB
CMake

# Findstb.cmake
#
# Finds the stb library (specifically stb_image.h)
#
# This will define the following variables
#
# stb_FOUND
# stb_INCLUDE_DIRS
#
# and the following imported targets
#
# stb::stb
#
# Try to find the package using pkg-config first
find_package(PkgConfig QUIET)
if(PKG_CONFIG_FOUND)
pkg_check_modules(PC_stb QUIET stb)
endif()
# Find the include directory
find_path(stb_INCLUDE_DIR
NAMES stb_image.h
PATHS
${PC_stb_INCLUDE_DIRS}
/usr/include
/usr/local/include
$ENV{VULKAN_SDK}/include
${ANDROID_NDK}/sources/third_party
${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../external
${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../third_party
${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../attachments/external
${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../attachments/third_party
${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../attachments/include
${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../../external
${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../../third_party
${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../../include
PATH_SUFFIXES stb
)
# If the include directory wasn't found, use FetchContent to download and build
if(NOT stb_INCLUDE_DIR)
# If not found, use FetchContent to download and build
include(FetchContent)
message(STATUS "stb_image.h not found, fetching from GitHub...")
FetchContent_Declare(
stb
GIT_REPOSITORY https://github.com/nothings/stb.git
GIT_TAG master # stb doesn't use version tags, so we use master
)
# Set policy to suppress the deprecation warning
if(POLICY CMP0169)
cmake_policy(SET CMP0169 OLD)
endif()
# Populate the content
FetchContent_GetProperties(stb)
if(NOT stb_POPULATED)
FetchContent_Populate(stb)
endif()
# stb is a header-only library with no CMakeLists.txt, so we just need to set the include directory
set(stb_INCLUDE_DIR ${stb_SOURCE_DIR})
endif()
# Set the variables
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(stb
REQUIRED_VARS stb_INCLUDE_DIR
)
if(stb_FOUND)
set(stb_INCLUDE_DIRS ${stb_INCLUDE_DIR})
# Create an imported target
if(NOT TARGET stb::stb)
add_library(stb::stb INTERFACE IMPORTED)
set_target_properties(stb::stb PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${stb_INCLUDE_DIRS}"
)
endif()
endif()
mark_as_advanced(stb_INCLUDE_DIR)