set(PNG_SRC "libpng/png.c"
            "libpng/pngerror.c"
            "libpng/pngget.c"
            "libpng/pngmem.c"
            "libpng/pngpread.c"
            "libpng/pngread.c"
            "libpng/pngrio.c"
            "libpng/pngrtran.c"
            "libpng/pngrutil.c"
            "libpng/pngset.c"
            "libpng/pngtest.c"
            "libpng/pngtrans.c"
            "libpng/pngwio.c"
            "libpng/pngwrite.c"
            "libpng/pngwtran.c"
            "libpng/pngwutil.c")

configure_file("libpng/scripts/pnglibconf.h.prebuilt"
               "libpng/pnglibconf.h"
               COPYONLY)

set(PNG_HPP "libpng/png.h"
            "libpng/pngconf.h"
            "libpng/pngdebug.h"
            "libpng/pnginfo.h"
            "libpng/pnglibconf.h"
            "libpng/pngpriv.h"
            "libpng/pngstruct.h")

source_group("" FILES ${PNG_SRC})
source_group("" FILES ${PNG_HPP})

add_library("png" STATIC ${PNG_SRC} ${PNG_HPP})

set_property(TARGET "png" PROPERTY FOLDER "External Libraries")

disable_project_warnings("png")

target_compile_definitions("png" PRIVATE PNG_ARM_NEON_OPT=0
                                         PNG_INTEL_SSE_OPT=0)

if(MSVC)
  target_compile_definitions("png" PRIVATE _CRT_SECURE_NO_WARNINGS)
endif()

target_include_directories("png" PUBLIC
  "zlib"
  "libpng"
  "${CMAKE_CURRENT_BINARY_DIR}/libpng"
)