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include(functions/dependency_options)
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if(NOT DEFINED DEVILUTIONX_SYSTEM_LIBPNG)
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find_package(PNG QUIET)
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if(PNG_FOUND)
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message("-- Found png ${PNG_VERSION_STRING}")
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else()
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message("-- Suitable system png package not found, will use png from source")
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set(DEVILUTIONX_SYSTEM_LIBPNG OFF)
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endif()
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endif()
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dependency_options("libpng" DEVILUTIONX_SYSTEM_LIBPNG ON DEVILUTIONX_STATIC_LIBPNG)
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if(DEVILUTIONX_SYSTEM_LIBPNG)
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find_package(PNG REQUIRED)
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else()
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add_subdirectory(../libpng libpng)
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endif()
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include(functions/FetchContent_MakeAvailableExcludeFromAll)
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include(FetchContent)
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FetchContent_Declare(SDL_image
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URL https://github.com/libsdl-org/SDL_image/archive/refs/tags/release-2.0.5.tar.gz
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URL_HASH MD5=3446ed7ee3c700065dcb33426a9b0c6e
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)
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FetchContent_MakeAvailableExcludeFromAll(SDL_image)
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if(DEVILUTIONX_STATIC_SDL_IMAGE)
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add_library(SDL_image STATIC ${CMAKE_CURRENT_LIST_DIR}/IMG.c ${sdl_image_SOURCE_DIR}/IMG_png.c)
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else()
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add_library(SDL_image SHARED ${CMAKE_CURRENT_LIST_DIR}/IMG.c ${sdl_image_SOURCE_DIR}/IMG_png.c)
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endif()
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target_include_directories(SDL_image PRIVATE ${sdl_image_SOURCE_DIR})
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target_compile_definitions(SDL_image PRIVATE LOAD_PNG SDL_IMAGE_USE_COMMON_BACKEND)
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target_link_libraries(SDL_image PNG::PNG)
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if(TARGET SDL2::SDL2)
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target_link_libraries(SDL_image SDL2::SDL2)
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add_library(SDL2::SDL2_image ALIAS SDL_image)
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elseif(TARGET SDL2::SDL2-static)
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target_link_libraries(SDL_image SDL2::SDL2-static)
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add_library(SDL2::SDL2_image ALIAS SDL_image)
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endif()
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