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CMakeLists.txt
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cmake_minimum_required(VERSION 3.16...3.28)
if(NOT DEFINED CMAKE_BUILD_TYPE)
set(cmake_build_type_undefined 1)
endif()
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake")
# See docs/release_checklist.md
set(MAJOR_VERSION 3)
set(MINOR_VERSION 1)
set(MICRO_VERSION 1)
set(SDL_REQUIRED_VERSION 3.1.3)
project(SDL3_image
LANGUAGES C
VERSION "${MAJOR_VERSION}.${MINOR_VERSION}.${MICRO_VERSION}"
)
include("${CMAKE_CURRENT_LIST_DIR}/cmake/GetGitRevisionDescription.cmake")
include("${CMAKE_CURRENT_LIST_DIR}/cmake/PrivateSdlFunctions.cmake")
include("${CMAKE_CURRENT_LIST_DIR}/cmake/sdlcpu.cmake")
include("${CMAKE_CURRENT_LIST_DIR}/cmake/sdlplatform.cmake")
include("${CMAKE_CURRENT_LIST_DIR}/cmake/sdlmanpages.cmake")
sdl_calculate_derived_version_variables(${MAJOR_VERSION} ${MINOR_VERSION} ${MICRO_VERSION})
message(STATUS "Configuring ${PROJECT_NAME} ${PROJECT_VERSION}")
if(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
set(SDLIMAGE_ROOTPROJECT ON)
else()
set(SDLIMAGE_ROOTPROJECT OFF)
endif()
# By default, configure in RelWithDebInfo configuration
if(SDLIMAGE_ROOTPROJECT)
get_property(is_multi_config GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
if(is_multi_config)
# The first item in CMAKE_CONFIGURATION_TYPES is the default configuration
if(DEFINED CMAKE_CONFIGURATION_TYPES AND "RelWithDebInfo" IN_LIST CMAKE_CONFIGURATION_TYPES)
list(REMOVE_ITEM CMAKE_CONFIGURATION_TYPES "RelWithDebInfo")
list(INSERT CMAKE_CONFIGURATION_TYPES 0 "RelWithDebInfo")
set(CMAKE_CONFIGURATION_TYPES "${CMAKE_CONFIGURATION_TYPES}" CACHE STRING "CMake configuration types" FORCE)
endif()
else()
if(cmake_build_type_undefined)
set(CMAKE_BUILD_TYPE "RelWithDebInfo" CACHE STRING "CMake build type" FORCE)
endif()
endif()
endif()
set(SDLIMAGE_SAMPLES_DEFAULT ${SDLIMAGE_ROOTPROJECT})
if(ANDROID)
set(SDLIMAGE_SAMPLES_DEFAULT OFF)
endif()
# Assume MSVC projects don't have a package manager and need vendored dependencies (by default).
# Most other platforms have some kind of package manager.
if(MSVC)
set(vendored_default ON)
else()
set(vendored_default OFF)
endif()
set(sdlimage_install_enableable ON)
if((TARGET SDL3-shared OR TARGET SDL3-static) AND SDL_DISABLE_INSTALL)
# Cannot install SDL3_image when SDL3 is built in same built, and is not installed.
set(sdlimage_install_enableable OFF)
endif()
if(NOT DEFINED CMAKE_FIND_PACKAGE_PREFER_CONFIG)
set(CMAKE_FIND_PACKAGE_PREFER_CONFIG ON)
endif()
include(CMakeDependentOption)
include(CMakePackageConfigHelpers)
include(GNUInstallDirs)
set(PLATFORM_SUPPORTS_SHARED ON)
if(EMSCRIPTEN OR VITA OR PSP OR PS2 OR N3DS OR RISCOS)
set(PLATFORM_SUPPORTS_SHARED OFF)
endif()
option(CMAKE_POSITION_INDEPENDENT_CODE "Build static libraries with -fPIC" ${PLATFORM_SUPPORTS_SHARED})
cmake_dependent_option(BUILD_SHARED_LIBS "Build the library as a shared library" ON PLATFORM_SUPPORTS_SHARED OFF)
cmake_dependent_option(SDLIMAGE_INSTALL "Enable SDL3_image install target" ${SDLIMAGE_ROOTPROJECT} "${sdlimage_install_enableable}" OFF)
cmake_dependent_option(SDLIMAGE_INSTALL_CPACK "Create binary SDL3_image archive using CPack" ${SDLIMAGE_ROOTPROJECT} "SDLIMAGE_INSTALL" OFF)
cmake_dependent_option(SDLIMAGE_INSTALL_MAN "Install man pages for SDL3_image" OFF "SDLIMAGE_INSTALL" OFF)
cmake_dependent_option(SDLIMAGE_DEPS_SHARED "Load dependencies dynamically" ON PLATFORM_SUPPORTS_SHARED OFF)
cmake_dependent_option(SDLIMAGE_RELOCATABLE "Create relocatable SDL_image package" "${MSVC}" SDLIMAGE_INSTALL OFF)
option(SDLIMAGE_VENDORED "Use vendored third-party libraries" ${vendored_default})
option(SDLIMAGE_WERROR "Treat warnings as errors" OFF)
option(SDLIMAGE_STRICT "Fail when a dependency could not be found" OFF)
set(required "")
set(fatal_error "STATUS")
if(SDLIMAGE_STRICT)
set(required "REQUIRED")
set(fatal_error "FATAL_ERROR")
endif()
option(SDLIMAGE_SAMPLES "Build the SDL3_image sample program(s)" ${SDLIMAGE_SAMPLES_DEFAULT})
cmake_dependent_option(SDLIMAGE_SAMPLES_INSTALL "Install the SDL3_image sample program(s)" OFF "SDLIMAGE_SAMPLES;SDLIMAGE_INSTALL" OFF)
option(SDLIMAGE_TESTS "Build unit tests?" OFF)
option(SDLIMAGE_TESTS_INSTALL "Install unit tests?" OFF)
option(SDLIMAGE_BACKEND_STB "Use stb_image for loading JPEG and PNG files" ON)
cmake_dependent_option(SDLIMAGE_BACKEND_WIC "Add WIC backend (Windows Imaging Component)" OFF WIN32 OFF)
cmake_dependent_option(SDLIMAGE_BACKEND_IMAGEIO "Use native Mac OS X frameworks for loading images" ON APPLE OFF)
option(SDLIMAGE_AVIF "Support loading AVIF images" ON)
option(SDLIMAGE_BMP "Support loading BMP images" ON)
option(SDLIMAGE_GIF "Support loading GIF images" ON)
option(SDLIMAGE_JPG "Support loading JPEG images" ON)
option(SDLIMAGE_JXL "Support loading JXL images" OFF)
option(SDLIMAGE_LBM "Support loading LBM images" ON)
option(SDLIMAGE_PCX "Support loading PCX images" ON)
option(SDLIMAGE_PNG "Support loading PNG images" ON)
option(SDLIMAGE_PNM "Support loading PNM images" ON)
option(SDLIMAGE_QOI "Support loading QOI images" ON)
option(SDLIMAGE_SVG "Support loading SVG images" ON)
option(SDLIMAGE_TGA "Support loading TGA images" ON)
option(SDLIMAGE_TIF "Support loading TIFF images" ON)
option(SDLIMAGE_WEBP "Support loading WEBP images" ON)
option(SDLIMAGE_XCF "Support loading XCF images" ON)
option(SDLIMAGE_XPM "Support loading XPM images" ON)
option(SDLIMAGE_XV "Support loading XV images" ON)
cmake_dependent_option(SDLIMAGE_AVIF_SAVE "Add AVIF save support" ON SDLIMAGE_AVIF OFF)
cmake_dependent_option(SDLIMAGE_JPG_SAVE "Add JPEG save support" ON SDLIMAGE_JPG OFF)
cmake_dependent_option(SDLIMAGE_PNG_SAVE "Add PNG save support" ON SDLIMAGE_PNG OFF)
set(LIBAVIF_MINIMUM_VERSION "1.0")
if(SDLIMAGE_VENDORED AND SDLIMAGE_AVIF)
set(SDLIMAGE_AVIF_VENDORED ON)
else()
set(SDLIMAGE_AVIF_VENDORED OFF)
endif()
cmake_dependent_option(SDLIMAGE_AVIF_SHARED "Dynamically load AVIF support (requires shared libavif)"
${SDLIMAGE_DEPS_SHARED} SDLIMAGE_AVIF ON)
if(SDLIMAGE_AVIF_VENDORED)
set(SDLIMAGE_DAV1D ON)
set(SDLIMAGE_DAV1D_VENDORED ON)
set(SDLIMAGE_AOM ON)
set(SDLIMAGE_AOM_VENDORED ON)
else()
set(SDLIMAGE_DAV1D OFF)
set(SDLIMAGE_DAV1D_VENDORED OFF)
set(SDLIMAGE_AOM OFF)
set(SDLIMAGE_AOM_VENDORED OFF)
endif()
if(SDLIMAGE_AVIF_SHARED)
set(SDLIMAGE_DAV1D_SHARED ON)
set(SDLIMAGE_AOM_SHARED ON)
else()
set(SDLIMAGE_DAV1D_SHARED OFF)
set(SDLIMAGE_AOM_SHARED OFF)
endif()
if(SDLIMAGE_VENDORED AND SDLIMAGE_JPG AND NOT (SDLIMAGE_BACKEND_WIC OR SDLIMAGE_BACKEND_STB OR SDLIMAGE_BACKEND_IMAGEIO))
set(SDLIMAGE_JPG_VENDORED ON)
else()
set(SDLIMAGE_JPG_VENDORED OFF)
endif()
cmake_dependent_option(SDLIMAGE_JPG_SHARED "Dynamically load JPG support (requires shared libjpeg)"
${SDLIMAGE_DEPS_SHARED} "SDLIMAGE_JPG;NOT SDLIMAGE_BACKEND_WIC;NOT SDLIMAGE_BACKEND_STB;NOT SDLIMAGE_BACKEND_IMAGEIO" OFF)
if(SDLIMAGE_VENDORED AND SDLIMAGE_JXL)
set(SDLIMAGE_JXL_VENDORED ON)
else()
set(SDLIMAGE_JXL_VENDORED OFF)
endif()
cmake_dependent_option(SDLIMAGE_JXL_SHARED "Dynamically load JXL support (requires shared libjxl)"
${SDLIMAGE_DEPS_SHARED} SDLIMAGE_JXL OFF)
if(SDLIMAGE_VENDORED AND SDLIMAGE_PNG AND NOT (SDLIMAGE_BACKEND_WIC OR SDLIMAGE_BACKEND_STB OR SDLIMAGE_BACKEND_IMAGEIO))
set(SDLIMAGE_PNG_VENDORED ON)
else()
set(SDLIMAGE_PNG_VENDORED OFF)
endif()
cmake_dependent_option(SDLIMAGE_PNG_SHARED "Dynamically load PNG support (requires shared libpng)"
${SDLIMAGE_DEPS_SHARED} "SDLIMAGE_PNG;NOT SDLIMAGE_BACKEND_WIC;NOT SDLIMAGE_BACKEND_STB;NOT SDLIMAGE_BACKEND_IMAGEIO" OFF)
if(SDLIMAGE_VENDORED AND SDLIMAGE_TIF AND NOT (SDLIMAGE_BACKEND_IMAGEIO OR SDLIMAGE_BACKEND_WIC))
set(SDLIMAGE_TIF_VENDORED ON)
else()
set(SDLIMAGE_TIF_VENDORED OFF)
endif()
cmake_dependent_option(SDLIMAGE_TIF_SHARED "Dynamically load TIFF support (requires shared libtiff)"
${SDLIMAGE_DEPS_SHARED} SDLIMAGE_TIF OFF)
if(SDLIMAGE_VENDORED AND SDLIMAGE_WEBP)
set(SDLIMAGE_WEBP_VENDORED ON)
else()
set(SDLIMAGE_WEBP_VENDORED OFF)
endif()
cmake_dependent_option(SDLIMAGE_WEBP_SHARED "Dynamically load WEBP support (requires shared libwebp)"
${SDLIMAGE_DEPS_SHARED} SDLIMAGE_WEBP OFF)
if(SDLIMAGE_PNG_VENDORED)
set(SDLIMAGE_ZLIB ON)
else()
set(SDLIMAGE_ZLIB OFF)
endif()
if(SDLIMAGE_VENDORED AND SDLIMAGE_PNG_VENDORED)
set(SDLIMAGE_ZLIB_VENDORED ON)
else()
set(SDLIMAGE_ZLIB_VENDORED OFF)
endif()
if(SDLIMAGE_PNG_SHARED)
set(SDLIMAGE_ZLIB_SHARED ON)
else()
set(SDLIMAGE_ZLIB_SHARED OFF)
endif()
# Save BUILD_SHARED_LIBS variable
set(SDLIMAGE_BUILD_SHARED_LIBS ${BUILD_SHARED_LIBS})
set(sdl_required_components Headers)
if(SDLIMAGE_BUILD_SHARED_LIBS)
set(sdl3_image_target_name SDL3_image-shared)
set(sdl3_target_name SDL3::SDL3-shared)
list(APPEND sdl_required_components SDL3-shared)
else()
set(sdl3_image_target_name SDL3_image-static)
set(sdl3_target_name SDL3::SDL3)
endif()
if(NOT TARGET SDL3::Headers OR NOT TARGET ${sdl3_target_name})
find_package(SDL3 ${SDL_REQUIRED_VERSION} REQUIRED COMPONENTS ${sdl_required_components})
endif()
SDL_DetectTargetCPUArchitectures(SDL_CPU_NAMES)
SDL_DetectCMakePlatform()
# Set PROJECT_VERSION of subprojects to "" if it's project call does not set VERSION
cmake_policy(SET CMP0048 NEW)
# Allow cmake_dependent_option to use "Full Condition Syntax"
if(POLICY CMP0127)
cmake_policy(SET CMP0127 NEW)
endif()
# OpenGL is required by dependencies of (dependencies of) some vendored libraries
if(NOT DEFINED OpenGL_GL_PREFERENCE)
set(OpenGL_GL_PREFERENCE GLVND)
endif()
set(BUILD_SHARED_LIBS ${SDLIMAGE_BUILD_SHARED_LIBS})
add_library(${sdl3_image_target_name}
src/IMG.c
src/IMG_WIC.c
src/IMG_avif.c
src/IMG_bmp.c
src/IMG_gif.c
src/IMG_jpg.c
src/IMG_jxl.c
src/IMG_lbm.c
src/IMG_pcx.c
src/IMG_png.c
src/IMG_pnm.c
src/IMG_qoi.c
src/IMG_stb.c
src/IMG_svg.c
src/IMG_tga.c
src/IMG_tif.c
src/IMG_webp.c
src/IMG_xcf.c
src/IMG_xpm.c
src/IMG_xv.c
)
add_library(SDL3_image::${sdl3_image_target_name} ALIAS ${sdl3_image_target_name})
if(NOT TARGET SDL3_image::SDL3_image)
add_library(SDL3_image::SDL3_image ALIAS ${sdl3_image_target_name})
endif()
target_include_directories(${sdl3_image_target_name}
PUBLIC
"$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>"
"$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>"
)
target_compile_definitions(${sdl3_image_target_name} PRIVATE
BUILD_SDL
SDL_BUILD_MAJOR_VERSION=${MAJOR_VERSION}
SDL_BUILD_MINOR_VERSION=${MINOR_VERSION}
SDL_BUILD_MICRO_VERSION=${MICRO_VERSION}
)
target_link_libraries(${sdl3_image_target_name} PUBLIC SDL3::Headers)
if(SDLIMAGE_BUILD_SHARED_LIBS)
target_link_libraries(${sdl3_image_target_name} PRIVATE SDL3::SDL3-shared)
endif()
sdl_add_warning_options(${sdl3_image_target_name} WARNING_AS_ERROR ${SDLIMAGE_WERROR})
if(WIN32 AND SDLIMAGE_BUILD_SHARED_LIBS)
target_sources(${sdl3_image_target_name} PRIVATE
src/version.rc
)
if(MINGW)
target_link_options(${sdl3_image_target_name} PRIVATE -static-libgcc)
endif()
endif()
set_target_properties(${sdl3_image_target_name} PROPERTIES
OUTPUT_NAME "SDL3_image"
DEFINE_SYMBOL DLL_EXPORT
EXPORT_NAME ${sdl3_image_target_name}
C_VISIBILITY_PRESET "hidden"
)
sdl_target_link_option_version_file(${sdl3_image_target_name} "${CMAKE_CURRENT_SOURCE_DIR}/src/SDL_image.sym")
if(NOT ANDROID)
set_target_properties(${sdl3_image_target_name} PROPERTIES
SOVERSION "${SO_VERSION_MAJOR}"
VERSION "${SO_VERSION}"
)
if(APPLE)
cmake_minimum_required(VERSION 3.17...3.28)
set_target_properties(${sdl3_image_target_name} PROPERTIES
MACHO_COMPATIBILITY_VERSION "${DYLIB_COMPAT_VERSION}"
MACHO_CURRENT_VERSION "${DYLIB_CURRENT_VERSION}"
)
sdl_no_deprecated_errors(${sdl3_image_target_name})
endif()
endif()
if(SDLIMAGE_BUILD_SHARED_LIBS)
if(WIN32)
set_target_properties(${sdl3_image_target_name} PROPERTIES
PREFIX ""
DLL_NAME_WITH_SOVERSION FALSE
)
endif()
else()
if(MSVC)
set_target_properties(${sdl3_image_target_name} PROPERTIES
OUTPUT_NAME "SDL3_image-static"
)
endif()
endif()
# Use `Compatible Interface Properties` to ensure a shared SDL3_image is built with a shared SDL3
if(SDLIMAGE_BUILD_SHARED_LIBS)
set_property(TARGET ${sdl3_image_target_name} PROPERTY INTERFACE_SDL3_SHARED TRUE)
set_property(TARGET ${sdl3_image_target_name} APPEND PROPERTY COMPATIBLE_INTERFACE_BOOL SDL3_SHARED)
endif()
if(SDLIMAGE_BUILD_SHARED_LIBS)
sdl_target_link_options_no_undefined(${sdl3_image_target_name})
endif()
if(SDLIMAGE_BUILD_SHARED_LIBS)
# Make sure static library dependencies are built with -fPIC when building a shared SDL3_image
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
endif()
set(install_license_names)
macro(register_license NAME FILE)
list(APPEND install_license_names ${NAME})
set(install_license_${NAME} "${FILE}")
endmacro()
set(INSTALL_EXTRA_TARGETS)
set(INSTALL_EXTRA_CMAKE_MODULES)
set(PC_LIBS)
set(PC_REQUIRES)
set(SDLIMAGE_BACKENDS)
list(APPEND SDLIMAGE_BACKENDS STB)
set(SDLIMAGE_STB_ENABLED FALSE)
if(SDLIMAGE_BACKEND_STB)
set(SDLIMAGE_STB_ENABLED TRUE)
target_compile_definitions(${sdl3_image_target_name} PRIVATE USE_STBIMAGE)
endif()
list(APPEND SDLIMAGE_BACKENDS IMAGEIO)
set(SDLIMAGE_IMAGEIO_ENABLED FALSE)
if(APPLE)
if(SDLIMAGE_BACKEND_IMAGEIO)
enable_language(OBJC)
set(SDLIMAGE_IMAGEIO_ENABLED TRUE)
if(CMAKE_SYSTEM_NAME MATCHES ".*(Darwin|MacOS).*")
target_link_libraries(${sdl3_image_target_name} PRIVATE -Wl,-framework,ApplicationServices)
endif()
target_link_libraries(${sdl3_image_target_name} PRIVATE objc)
target_sources(${sdl3_image_target_name} PRIVATE
src/IMG_ImageIO.m
)
if (SDLIMAGE_PNG AND NOT SDLIMAGE_BACKEND_STB)
target_compile_definitions(${sdl3_image_target_name} PRIVATE PNG_USES_IMAGEIO)
endif()
if (SDLIMAGE_JPG AND NOT SDLIMAGE_BACKEND_STB)
target_compile_definitions(${sdl3_image_target_name} PRIVATE JPG_USES_IMAGEIO)
endif()
else()
target_compile_definitions(${sdl3_image_target_name} PRIVATE SDL_IMAGE_USE_COMMON_BACKEND)
endif()
endif()
list(APPEND SDLIMAGE_BACKENDS WIC)
set(SDLIMAGE_WIC_ENABLED FALSE)
if(SDLIMAGE_BACKEND_WIC)
set(SDLIMAGE_WIC_ENABLED TRUE)
target_compile_definitions(${sdl3_image_target_name} PRIVATE SDL_IMAGE_USE_WIC_BACKEND)
endif()
if(SDLIMAGE_ZLIB)
if(SDLIMAGE_ZLIB_VENDORED)
message(STATUS "${PROJECT_NAME}: Using vendored zlib")
# disable build of zlib example programs:
set(ZLIB_BUILD_EXAMPLES OFF CACHE BOOL "zlib examples" FORCE)
sdl_check_project_in_subfolder(external/zlib zlib SDLIMAGE_VENDORED)
add_subdirectory(external/zlib EXCLUDE_FROM_ALL)
register_license(zlib external/zlib/LICENSE)
set(ZLIB_ROOT "${CMAKE_CURRENT_SOURCE_DIR}/external/zlib;${CMAKE_CURRENT_BINARY_DIR}/external/zlib")
# ZLIB_INCLUDE_DIR variable is used by vendored libpng
set(ZLIB_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/external/zlib;${CMAKE_CURRENT_BINARY_DIR}/external/zlib" CACHE STRING "path of zlib, passed to libpng" FORCE)
# ZLIB_LIBRARY variable is used by vendored libpng
if(SDLIMAGE_ZLIB_SHARED)
set(ZLIB_LIBRARY zlib)
else()
set(ZLIB_LIBRARY zlibstatic)
set(SKIP_INSTALL_CONFIG_FILE ON)
endif()
if(NOT TARGET ZLIB::ZLIB)
add_library(ZLIB::ZLIB ALIAS ${ZLIB_LIBRARY})
endif()
# ZLIB_LIBRARIES variable is used by vendored libpng
set(ZLIB_LIBRARIES "${ZLIB_LIBRARY}")
# ZLIB_INCLUDE_DIRS variable is used by vendored libpng
set(ZLIB_INCLUDE_DIRS "${ZLIB_INCLUDE_DIR}")
target_include_directories(${ZLIB_LIBRARY} INTERFACE $<BUILD_INTERFACE:${ZLIB_INCLUDE_DIRS}>)
if(SDLIMAGE_ZLIB_SHARED OR NOT SDLIMAGE_BUILD_SHARED_LIBS)
list(APPEND INSTALL_EXTRA_TARGETS ${ZLIB_LIBRARY})
endif()
set_target_properties(${ZLIB_LIBRARY} PROPERTIES EXPORT_NAME external_zlib)
add_library(SDL3_image::external_zlib ALIAS ${ZLIB_LIBRARY})
else()
message(FATAL_ERROR "Internal error (zlib is only required when requesting vendored dependencies)")
endif()
endif()
if(SDLIMAGE_DAV1D)
if(SDLIMAGE_DAV1D_VENDORED)
message(STATUS "${PROJECT_NAME}: Using vendored dav1d")
set(BUILD_SHARED_LIBS ${SDLIMAGE_DAV1D_SHARED})
add_subdirectory(external/dav1d EXCLUDE_FROM_ALL)
register_license(dav1d external/dav1d/COPYING)
if(DAV1D_ASM AND (SDL_CPU_X64 OR SDL_CPU_X86))
enable_language(ASM_NASM)
endif()
set(DAV1D_LIBRARY dav1d)
if(SDLIMAGE_DAV1D_SHARED OR NOT SDLIMAGE_BUILD_SHARED_LIBS)
list(APPEND INSTALL_EXTRA_TARGETS dav1d)
endif()
else()
message(FATAL_ERROR "Internal error (dav1d is only required when requesting vendored dependencies)")
endif()
endif()
if(SDLIMAGE_AOM)
if(SDLIMAGE_AOM_VENDORED)
message(STATUS "${PROJECT_NAME}: Using vendored aom")
set(BUILD_SHARED_LIBS ${SDLIMAGE_AOM_SHARED})
set(ENABLE_DOCS OFF CACHE BOOL "")
set(ENABLE_EXAMPLES OFF CACHE BOOL "")
set(ENABLE_TESTDATA OFF CACHE BOOL "")
set(ENABLE_TESTS OFF CACHE BOOL "")
set(ENABLE_TOOLS OFF CACHE BOOL "")
if(SDLIMAGE_AOM_SHARED)
set(CONFIG_AV1_DECODER 1 CACHE BOOL "" FORCE)
else()
set(CONFIG_AV1_DECODER 0 CACHE BOOL "" FORCE)
endif()
set(CONFIG_AV1_ENCODER 1 CACHE BOOL "" FORCE)
# aom detects cpu using CMAKE_SYSTEM_NAME
if(SDL_CPU_X86)
set(AOM_TARGET_CPU "x86")
elseif(SDL_CPU_X64)
set(AOM_TARGET_CPU "x86_64")
elseif(SDL_CPU_ARM32)
set(AOM_TARGET_CPU "arm")
elseif(SDL_CPU_ARM64)
set(AOM_TARGET_CPU "aarch64")
endif()
add_subdirectory(external/aom EXCLUDE_FROM_ALL)
register_license(aom external/aom/LICENSE)
set(AOM_LIBRARY aom)
if(SDLIMAGE_AOM_SHARED OR NOT SDLIMAGE_BUILD_SHARED_LIBS)
list(APPEND INSTALL_EXTRA_TARGETS aom)
endif()
else()
message(FATAL_ERROR "Internal error (aom is only required when requesting vendored dependencies)")
endif()
endif()
list(APPEND SDLIMAGE_BACKENDS AVIF)
set(SDLIMAGE_AVIF_ENABLED FALSE)
if(SDLIMAGE_AVIF)
if(SDLIMAGE_AVIF_VENDORED)
set(SDLIMAGE_AVIF_ENABLED TRUE)
message(STATUS "${PROJECT_NAME}: Using vendored libavif")
sdl_check_project_in_subfolder(external/libavif libavif SDLIMAGE_VENDORED)
set(SKIP_INSTALL_LIBRARIES TRUE)
set(BUILD_SHARED_LIBS ${SDLIMAGE_AVIF_SHARED})
set(AVIF_CODEC_DAV1D ON CACHE BOOL "Use dav1d codec for decoding" FORCE)
set(AVIF_LOCAL_DAV1D OFF CACHE BOOL "Build dav1d by libavif" FORCE)
set(AVIF_CODEC_AOM ON CACHE BOOL "Use aom codec for decoding" FORCE)
set(AVIF_LOCAL_AOM OFF CACHE BOOL "Build aom by libavif" FORCE)
set(AVIF_CODEC_AOM_ENCODE ON CACHE BOOL "Enable aom encoder" FORCE)
set(AVIF_CODEC_AOM_DECODE OFF CACHE BOOL "Enable aom decoder" FORCE)
set(LIBAVIF_WITH_SHARPYUV_SDLIMAGE ${SDLIMAGE_WEBP} CACHE BOOL "Build libavif with sharpyuv support (re-use sharpyuv built by libwebp)" FORCE)
set(BUILD_SHARED_LIBS ${SDLIMAGE_AVIF_SHARED})
set(AOM_LIBRARIES "aom" CACHE STRING "aom libraries" FORCE)
add_subdirectory(external/libavif EXCLUDE_FROM_ALL)
register_license(avif external/libavif/LICENSE)
if(SDLIMAGE_AVIF_SHARED OR NOT SDLIMAGE_BUILD_SHARED_LIBS)
list(APPEND INSTALL_EXTRA_TARGETS avif)
endif()
set_target_properties(avif PROPERTIES EXPORT_NAME external_libavif)
add_library(SDL3_image::external_libavif ALIAS avif)
if(NOT SDLIMAGE_AVIF_SHARED)
list(APPEND PC_LIBS -l$<TARGET_FILE_BASE_NAME:avif>)
endif()
if(NOT MSVC AND NOT CMAKE_SYSTEM_NAME MATCHES ".*OpenBSD.*")
sdl_check_linker_flag("-Wl,--no-undefined" LINKER_SUPPORTS_WL_NO_UNDEFINED)
if(LINKER_SUPPORTS_WL_NO_UNDEFINED)
target_link_options(avif PRIVATE "-Wl,--no-undefined")
endif()
endif()
elseif(SDLIMAGE_AVIF_SHARED AND DEFINED SDLIMAGE_DYNAMIC_AVIF AND EXISTS "${SDLIMAGE_DYNAMIC_AVIF}")
message(STATUS "${PROJECT_NAME}: Using libavif from CMake variable")
set(SDLIMAGE_AVIF_ENABLED TRUE)
else()
find_package(libavif "${LIBAVIF_MINIMUM_VERSION}" QUIET ${required})
if(libavif_FOUND)
message(STATUS "${PROJECT_NAME}: Using system libavif")
set(SDLIMAGE_AVIF_ENABLED TRUE)
if(NOT SDLIMAGE_AVIF_SHARED)
list(APPEND PC_REQUIRES "libavif >= ${LIBAVIF_MINIMUM_VERSION}")
endif()
else()
message(STATUS "libavif-${LIBAVIF_MINIMUM_VERSION} or compatible not found")
message(${fatal_error} "libavif NOT found")
endif()
endif()
if(SDLIMAGE_AVIF_ENABLED)
target_compile_definitions(${sdl3_image_target_name} PRIVATE
LOAD_AVIF
SDL_IMAGE_SAVE_AVIF=$<BOOL:${SDLIMAGE_AVIF_SAVE}>
)
if(SDLIMAGE_AVIF_SHARED)
if(NOT DEFINED SDLIMAGE_DYNAMIC_AVIF)
target_include_directories(${sdl3_image_target_name} PRIVATE
$<TARGET_PROPERTY:avif,INCLUDE_DIRECTORIES>
$<TARGET_PROPERTY:avif,INTERFACE_INCLUDE_DIRECTORIES>
$<TARGET_PROPERTY:avif,INTERFACE_SYSTEM_INCLUDE_DIRECTORIES>
)
if(SDLIMAGE_AVIF_VENDORED)
add_dependencies(${sdl3_image_target_name} avif)
endif()
endif()
target_get_dynamic_library(SDLIMAGE_DYNAMIC_AVIF avif)
message(STATUS "Dynamic libavif: ${SDLIMAGE_DYNAMIC_AVIF}")
target_compile_definitions(${sdl3_image_target_name} PRIVATE "LOAD_AVIF_DYNAMIC=\"${SDLIMAGE_DYNAMIC_AVIF}\"")
else()
target_link_libraries(${sdl3_image_target_name} PRIVATE avif)
endif()
endif()
endif()
list(APPEND SDLIMAGE_BACKENDS BMP)
set(SDLIMAGE_BMP_ENABLED FALSE)
if(SDLIMAGE_BMP)
set(SDLIMAGE_BMP_ENABLED TRUE)
target_compile_definitions(${sdl3_image_target_name} PRIVATE LOAD_BMP)
endif()
list(APPEND SDLIMAGE_BACKENDS GIF)
set(SDLIMAGE_GIF_ENABLED FALSE)
if(SDLIMAGE_GIF)
set(SDLIMAGE_GIF_ENABLED TRUE)
target_compile_definitions(${sdl3_image_target_name} PRIVATE LOAD_GIF)
endif()
list(APPEND SDLIMAGE_BACKENDS JPG)
set(SDLIMAGE_JPG_ENABLED FALSE)
if(SDLIMAGE_JPG)
if(SDLIMAGE_BACKEND_STB OR SDLIMAGE_BACKEND_WIC OR SDLIMAGE_BACKEND_IMAGEIO)
set(SDLIMAGE_JPG_ENABLED TRUE)
else()
if(SDLIMAGE_JPG_VENDORED)
set(SDLIMAGE_JPG_ENABLED TRUE)
message(STATUS "${PROJECT_NAME}: Using vendored libjpeg")
sdl_check_project_in_subfolder(external/jpeg libjpeg SDLIMAGE_VENDORED)
set(BUILD_SHARED_LIBS ${SDLIMAGE_JPG_SHARED})
add_subdirectory(external/jpeg EXCLUDE_FROM_ALL)
register_license(jpeg external/jpeg/COPYING)
if(SDLIMAGE_JPG_SHARED OR NOT SDLIMAGE_BUILD_SHARED_LIBS)
list(APPEND INSTALL_EXTRA_TARGETS jpeg)
endif()
set_target_properties(jpeg PROPERTIES EXPORT_NAME external_libjpeg)
add_library(SDL3_image::external_libjpeg ALIAS jpeg)
if(NOT SDLIMAGE_JPG_SHARED)
list(APPEND PC_LIBS -l$<TARGET_FILE_BASE_NAME:jpeg>)
endif()
elseif(SDLIMAGE_JPG_SHARED AND DEFINED SDLIMAGE_DYNAMIC_JPEG AND EXISTS "${SDLIMAGE_DYNAMIC_JPEG}")
message(STATUS "${PROJECT_NAME}: Using libjpeg from CMake variable")
set(SDLIMAGE_JPG_ENABLED TRUE)
else()
find_package(JPEG ${required})
if(JPEG_FOUND)
message(STATUS "${PROJECT_NAME}: Using system libjpeg")
set(SDLIMAGE_JPG_ENABLED TRUE)
if(NOT SDLIMAGE_JPG_SHARED)
list(APPEND PC_REQUIRES libjpeg)
endif()
else()
message(${fatal_error} "libjpeg NOT found")
endif()
endif()
if(SDLIMAGE_JPG_ENABLED)
if(SDLIMAGE_JPG_SHARED)
if(NOT DEFINED SDLIMAGE_DYNAMIC_JPEG)
target_include_directories(${sdl3_image_target_name} PRIVATE
$<TARGET_PROPERTY:JPEG::JPEG,INCLUDE_DIRECTORIES>
$<TARGET_PROPERTY:JPEG::JPEG,INTERFACE_INCLUDE_DIRECTORIES>
$<TARGET_PROPERTY:JPEG::JPEG,INTERFACE_SYSTEM_INCLUDE_DIRECTORIES>
)
if(SDLIMAGE_JPG_VENDORED)
add_dependencies(${sdl3_image_target_name} JPEG::JPEG)
endif()
endif()
target_get_dynamic_library(SDLIMAGE_DYNAMIC_JPEG JPEG::JPEG)
message(STATUS "Dynamic libjpeg: ${SDLIMAGE_DYNAMIC_JPEG}")
target_compile_definitions(${sdl3_image_target_name} PRIVATE "LOAD_JPG_DYNAMIC=\"${SDLIMAGE_DYNAMIC_JPEG}\"")
else()
target_link_libraries(${sdl3_image_target_name} PRIVATE JPEG::JPEG)
endif()
endif()
endif()
if(SDLIMAGE_JPG_ENABLED)
target_compile_definitions(${sdl3_image_target_name} PRIVATE
LOAD_JPG
SDL_IMAGE_SAVE_JPG=$<BOOL:${SDLIMAGE_JPG_SAVE}>
)
endif()
endif()
list(APPEND SDLIMAGE_BACKENDS JXL)
set(SDLIMAGE_JXL_ENABLED FALSE)
if(SDLIMAGE_JXL)
if(SDLIMAGE_JXL_VENDORED)
set(SDLIMAGE_JXL_ENABLED TRUE)
enable_language(CXX)
message(STATUS "${PROJECT_NAME}: Using vendored libjxl")
# BUILD_TESTING variable is used by libjxl
set(BUILD_TESTING OFF CACHE BOOL "build testing")
# JPEGXL_ENABLE_BENCHMARK variable is used by libjxl
set(JPEGXL_ENABLE_BENCHMARK OFF CACHE BOOL "libjpegxl benchmark" FORCE)
# JPEGXL_ENABLE_TOOLS variable is used by libjxl
set(JPEGXL_ENABLE_JNI OFF CACHE BOOL "build jpegxl fni")
# JPEGXL_ENABLE_MANPAGES variable is used by libjxl
set(JPEGXL_ENABLE_MANPAGES OFF CACHE BOOL "libjxl manpage option" FORCE)
# JPEGXL_ENABLE_PLUGINS variable is used by libjxl
set(JPEGXL_ENABLE_PLUGINS OFF CACHE BOOL "libjxl manpage option" FORCE)
# JPEGXL_ENABLE_SKCMS variable is used by libjxl
set(JPEGXL_ENABLE_SKCMS OFF CACHE BOOL "libjxl skcms option" FORCE)
# JPEGXL_FORCE_SYSTEM_HWY variable is used by libjxl
set(JPEGXL_FORCE_SYSTEM_HWY OFF CACHE BOOL "libjxl highway option" FORCE)
sdl_check_project_in_subfolder(external/libjxl libjxl SDLIMAGE_VENDORED)
set(BUILD_SHARED_LIBS ${SDLIMAGE_JXL_SHARED})
add_subdirectory(external/libjxl EXCLUDE_FROM_ALL)
register_license(jxl external/libjxl/LICENSE)
if(SDLIMAGE_JXL_SHARED)
set(jxl_lib jxl)
set(jxl_install_libs brotlidec brotlicommon brotlienc jxl)
else()
set(jxl_lib jxl_dec-static)
set(jxl_install_libs brotlidec-static brotlicommon-static hwy jxl_dec-static)
list(APPEND PC_LIBS
-l$<TARGET_FILE_BASE_NAME:brotlidec> -l$<TARGET_FILE_BASE_NAME:brotlicommon>
-l$<TARGET_FILE_BASE_NAME:brotlienc> -l$<TARGET_FILE_BASE_NAME:jxl>
)
endif()
if(SDLIMAGE_JXL_SHARED OR NOT SDLIMAGE_BUILD_SHARED_LIBS)
list(APPEND INSTALL_EXTRA_TARGETS ${jxl_install_libs})
endif()
set_target_properties(${jxl_lib} PROPERTIES EXPORT_NAME external_libjxl)
add_library(SDL3_image::external_libjxl ALIAS ${jxl_lib})
if(NOT TARGET libjxl::libjxl)
add_library(libjxl::libjxl ALIAS ${jxl_lib})
endif()
elseif(SDLIMAGE_JXL_SHARED AND DEFINED SDLIMAGE_DYNAMIC_JXL AND EXISTS "${SDLIMAGE_DYNAMIC_JXL}")
message(STATUS "${PROJECT_NAME}: Using libjxl from CMake variable")
set(SDLIMAGE_JXL_ENABLED TRUE)
else()
find_package(libjxl ${required})
if(libjxl_FOUND)
message(STATUS "${PROJECT_NAME}: Using system libjxl")
set(SDLIMAGE_JXL_ENABLED TRUE)
if(NOT SDLIMAGE_JXL_SHARED)
list(APPEND PC_REQUIRES libjxl)
list(APPEND INSTALL_EXTRA_CMAKE_MODULES cmake/Findlibjxl.cmake)
endif()
else()
message(${fatal_error} "libjxl NOT found")
endif()
endif()
if(SDLIMAGE_JXL_ENABLED)
target_compile_definitions(${sdl3_image_target_name} PRIVATE LOAD_JXL)
if(SDLIMAGE_JXL_SHARED)
if(NOT DEFINED SDLIMAGE_DYNAMIC_JXL)
target_include_directories(${sdl3_image_target_name} PRIVATE
$<TARGET_PROPERTY:libjxl::libjxl,INCLUDE_DIRECTORIES>
$<TARGET_PROPERTY:libjxl::libjxl,INTERFACE_INCLUDE_DIRECTORIES>
$<TARGET_PROPERTY:libjxl::libjxl,INTERFACE_SYSTEM_INCLUDE_DIRECTORIES>
)
if(SDLIMAGE_JXL_VENDORED)
add_dependencies(${sdl3_image_target_name} libjxl::libjxl)
endif()
endif()
target_get_dynamic_library(SDLIMAGE_DYNAMIC_JXL libjxl::libjxl)
message(STATUS "Dynamic libjxl: ${SDLIMAGE_DYNAMIC_JXL}")
target_compile_definitions(${sdl3_image_target_name} PRIVATE "LOAD_JXL_DYNAMIC=\"${SDLIMAGE_DYNAMIC_JXL}\"")
else()
target_link_libraries(${sdl3_image_target_name} PRIVATE libjxl::libjxl)
endif()
endif()
endif()
list(APPEND SDLIMAGE_BACKENDS LBM)
set(SDLIMAGE_LBM_ENABLED FALSE)
if(SDLIMAGE_LBM)
set(SDLIMAGE_LBM_ENABLED TRUE)
target_compile_definitions(${sdl3_image_target_name} PRIVATE LOAD_LBM)
endif()
list(APPEND SDLIMAGE_BACKENDS PCX)
set(SDLIMAGE_PCX_ENABLED FALSE)
if(SDLIMAGE_PCX)
set(SDLIMAGE_PCX_ENABLED TRUE)
target_compile_definitions(${sdl3_image_target_name} PRIVATE LOAD_PCX)
endif()
list(APPEND SDLIMAGE_BACKENDS PNG)
set(SDLIMAGE_PNG_ENABLED FALSE)
if(SDLIMAGE_PNG)
if(SDLIMAGE_BACKEND_STB OR SDLIMAGE_BACKEND_WIC OR SDLIMAGE_BACKEND_IMAGEIO)
set(SDLIMAGE_PNG_ENABLED TRUE)
else()
if(SDLIMAGE_PNG_VENDORED)
set(SDLIMAGE_PNG_ENABLED TRUE)
message(STATUS "${PROJECT_NAME}: Using vendored libpng")
set(PNG_TESTS OFF CACHE BOOL "Build PNG Tests" FORCE)
set(SKIP_INSTALL_EXPORT TRUE)
sdl_check_project_in_subfolder(external/libpng libpng SDLIMAGE_VENDORED)
add_subdirectory(external/libpng EXCLUDE_FROM_ALL)
register_license(zlib external/libpng/LICENSE)
if(SDLIMAGE_PNG_SHARED)
set(PNG_LIBRARY png_shared)
else()
set(PNG_LIBRARY png_static)
endif()
add_library(PNG::PNG ALIAS ${PNG_LIBRARY})
set_property(TARGET ${PNG_LIBRARY} PROPERTY DEBUG_POSTFIX "")
target_include_directories(${sdl3_image_target_name} PRIVATE external/libpng)
if(SDLIMAGE_PNG_SHARED OR NOT SDLIMAGE_BUILD_SHARED_LIBS)
list(APPEND INSTALL_EXTRA_TARGETS ${PNG_LIBRARY})
endif()
set_target_properties(${PNG_LIBRARY} PROPERTIES EXPORT_NAME external_libpng)
add_library(SDL3_image::external_libpng ALIAS ${PNG_LIBRARY})
if(NOT SDLIMAGE_PNG_SHARED)
list(APPEND PC_LIBS -l$<TARGET_FILE_BASE_NAME:${PNG_LIBRARY}>)
if(SDLIMAGE_ZLIB_VENDORED)
list(APPEND PC_LIBS -l$<TARGET_FILE_BASE_NAME:${ZLIB_LIBRARY}>)
else()
list(APPEND PC_REQUIRES zlib)
endif()
endif()
elseif(SDLIMAGE_PNG_SHARED AND DEFINED SDLIMAGE_DYNAMIC_PNG AND EXISTS "${SDLIMAGE_DYNAMIC_PNG}")
message(STATUS "${PROJECT_NAME}: Using libpng from CMake variable")
set(SDLIMAGE_PNG_ENABLED TRUE)
else()
find_package(PNG ${required})
if(PNG_FOUND)
message(STATUS "${PROJECT_NAME}: Using system libpng")
set(SDLIMAGE_PNG_ENABLED TRUE)
if(NOT SDLIMAGE_PNG_SHARED)
list(APPEND PC_REQUIRES libpng)
endif()
else()
message(${FATAL_ERROR} "libpng NOT found")
endif()
endif()
if(SDLIMAGE_PNG_ENABLED)
if(SDLIMAGE_PNG_SHARED)
if(NOT DEFINED SDLIMAGE_DYNAMIC_PNG)
target_include_directories(${sdl3_image_target_name} PRIVATE
$<TARGET_PROPERTY:PNG::PNG,INCLUDE_DIRECTORIES>
$<TARGET_PROPERTY:PNG::PNG,INTERFACE_INCLUDE_DIRECTORIES>
$<TARGET_PROPERTY:PNG::PNG,INTERFACE_SYSTEM_INCLUDE_DIRECTORIES>
)
if(SDLIMAGE_PNG_VENDORED)
add_dependencies(${sdl3_image_target_name} PNG::PNG)
endif()
endif()
target_get_dynamic_library(SDLIMAGE_DYNAMIC_PNG PNG::PNG)
message(STATUS "Dynamic libpng: ${SDLIMAGE_DYNAMIC_PNG}")
target_compile_definitions(${sdl3_image_target_name} PRIVATE "LOAD_PNG_DYNAMIC=\"${SDLIMAGE_DYNAMIC_PNG}\"")
else()
target_link_libraries(${sdl3_image_target_name} PRIVATE PNG::PNG)
endif()
endif()
endif()
if(SDLIMAGE_PNG_ENABLED)
target_compile_definitions(${sdl3_image_target_name} PRIVATE
LOAD_PNG
SDL_IMAGE_SAVE_PNG=$<BOOL:${SDLIMAGE_PNG_SAVE}>
)
endif()
endif()
list(APPEND SDLIMAGE_BACKENDS PNM)
set(SDLIMAGE_PNM_ENABLED FALSE)
if(SDLIMAGE_PNM)
set(SDLIMAGE_PNM_ENABLED TRUE)
target_compile_definitions(${sdl3_image_target_name} PRIVATE LOAD_PNM)
endif()
list(APPEND SDLIMAGE_BACKENDS QOI)
set(SDLIMAGE_QOI_ENABLED FALSE)
if(SDLIMAGE_QOI)
set(SDLIMAGE_QOI_ENABLED TRUE)
target_compile_definitions(${sdl3_image_target_name} PRIVATE LOAD_QOI)
endif()
list(APPEND SDLIMAGE_BACKENDS SVG)
set(SDLIMAGE_SVG_ENABLED FALSE)
if(SDLIMAGE_SVG)
set(SDLIMAGE_SVG_ENABLED TRUE)
target_compile_definitions(${sdl3_image_target_name} PRIVATE LOAD_SVG)
endif()
list(APPEND SDLIMAGE_BACKENDS TGA)
set(SDLIMAGE_TGA_ENABLED FALSE)
if(SDLIMAGE_TGA)
set(SDLIMAGE_TGA_ENABLED TRUE)
target_compile_definitions(${sdl3_image_target_name} PRIVATE LOAD_TGA)
endif()
list(APPEND SDLIMAGE_BACKENDS TIF)
set(SDLIMAGE_TIF_ENABLED FALSE)
if(SDLIMAGE_TIF)
if(SDLIMAGE_BACKEND_IMAGEIO OR SDLIMAGE_BACKEND_WIC)
set(SDLIMAGE_TIF_ENABLED TRUE)
else()
if(SDLIMAGE_TIF_VENDORED)
set(SDLIMAGE_TIF_ENABLED TRUE)
message(STATUS "${PROJECT_NAME}: Using vendored libtiff")
# tiff-tests variable is used by vendored libtiff
set(tiff-tests OFF CACHE BOOL "libtiff: tests" FORCE)
# jpeg variable is used by vendored libtiff
set(jpeg OFF CACHE BOOL "libtiff: jpeg option" FORCE)
# libdeflate variable is used by vendored libtiff
set(libdeflate OFF CACHE BOOL "libtiff: libdeflate option" FORCE)
# DEFLATE_FOUND variable is used by vendored libtiff
set(DEFLATE_FOUND OFF CACHE BOOL "libtiff: libdeflate option" FORCE)
# zlib variable is used by vendored libtiff (controls use of `find_package`)
set(zlib OFF CACHE BOOL "libtiff: find zlib using find_package" FORCE)
# ZLIB_FOUND is used by vendored libtiff
set(ZLIB_FOUND "")
# lzma variable is used by vendored libtiff
set(lzma OFF CACHE BOOL "libtiff: lzma option" FORCE)
# webp variable is used by vendored libtiff
set(webp OFF CACHE BOOL "libtiff: webp option" FORCE)
# zstd variable is used by vendored libtiff
set(zstd OFF CACHE BOOL "libtiff: zstd option" FORCE)
# ZSTD_FOUND variable is used by vendored libtiff
set(ZSTD_FOUND OFF)
# WEBP_LIBRARY variable is used by vendored libtiff
set(WEBP_LIBRARY "")
sdl_check_project_in_subfolder(external/libtiff libtiff SDLIMAGE_VENDORED)
set(BUILD_SHARED_LIBS ${SDLIMAGE_TIF_SHARED})
add_subdirectory(external/libtiff EXCLUDE_FROM_ALL)
register_license(tiff external/libtiff/LICENSE.md)
add_library(TIFF::TIFF ALIAS tiff)
set(SDLIMAGE_TIF_TARGET "TIFF::tiff")
if(SDLIMAGE_TIF_SHARED OR NOT SDLIMAGE_BUILD_SHARED_LIBS)
list(APPEND INSTALL_EXTRA_TARGETS tiff)
endif()
set_target_properties(tiff PROPERTIES EXPORT_NAME external_libtiff)
add_library(SDL3_image::external_libtiff ALIAS tiff)
if(NOT SDLIMAGE_TIF_SHARED)
list(APPEND PC_LIBS -l$<TARGET_FILE_BASE_NAME:tiff>)
endif()
elseif(SDLIMAGE_TIF_SHARED AND DEFINED SDLIMAGE_DYNAMIC_TIF AND EXISTS "${SDLIMAGE_DYNAMIC_TIF}")
message(STATUS "${PROJECT_NAME}: Using libtiff from CMake variable")
set(SDLIMAGE_TIF_ENABLED TRUE)
set(SDLIMAGE_TIF_TARGET "tiff-non-existing-target")
else()
find_package(TIFF ${required})
if(TIFF_FOUND)
message(STATUS "${PROJECT_NAME}: Using system libtiff")
set(SDLIMAGE_TIF_ENABLED TRUE)
if(NOT SDLIMAGE_TIF_SHARED)
list(APPEND PC_REQUIRES libtiff-4)
endif()
if(TARGET TIFF::tiff)
# introduced in CMake 3.28
# TIFF::TIFF still exists, but it is an INTERFACE library linking to TIFF::tiff (no ALIAS library)
set(SDLIMAGE_TIF_TARGET "TIFF::tiff")
else()
set(SDLIMAGE_TIF_TARGET "TIFF::TIFF")
endif()
else()
message(${fatal_error} "libtiff NOT found")
endif()
endif()
if(SDLIMAGE_TIF_ENABLED)
target_compile_definitions(${sdl3_image_target_name} PRIVATE LOAD_TIF)
if(SDLIMAGE_TIF_SHARED)
if(NOT DEFINED SDLIMAGE_DYNAMIC_TIF)
target_include_directories(${sdl3_image_target_name} PRIVATE
$<TARGET_PROPERTY:${SDLIMAGE_TIF_TARGET},INCLUDE_DIRECTORIES>
$<TARGET_PROPERTY:${SDLIMAGE_TIF_TARGET},INTERFACE_INCLUDE_DIRECTORIES>
$<TARGET_PROPERTY:${SDLIMAGE_TIF_TARGET},INTERFACE_SYSTEM_INCLUDE_DIRECTORIES>
)
if(SDLIMAGE_TIF_VENDORED)
add_dependencies(${sdl3_image_target_name} ${SDLIMAGE_TIF_TARGET})
endif()
endif()
target_get_dynamic_library(SDLIMAGE_DYNAMIC_TIF ${SDLIMAGE_TIF_TARGET})
message(STATUS "Dynamic libtiff: ${SDLIMAGE_DYNAMIC_TIF}")
target_compile_definitions(${sdl3_image_target_name} PRIVATE "LOAD_TIF_DYNAMIC=\"${SDLIMAGE_DYNAMIC_TIF}\"")
else()
target_link_libraries(${sdl3_image_target_name} PRIVATE ${SDLIMAGE_TIF_TARGET})
endif()
endif()
endif()
endif()
list(APPEND SDLIMAGE_BACKENDS WEBP)
set(SDLIMAGE_WEBP_ENABLED FALSE)
if(SDLIMAGE_WEBP)
# missing cpufeatures
if(SDLIMAGE_WEBP_VENDORED)
set(SDLIMAGE_WEBP_ENABLED TRUE)
message(STATUS "${PROJECT_NAME}: Using vendored libwebp")
sdl_check_project_in_subfolder(external/libwebp libwebp SDLIMAGE_VENDORED)
set(BUILD_SHARED_LIBS ${SDLIMAGE_WEBP_SHARED})
add_subdirectory(external/libwebp EXCLUDE_FROM_ALL)
register_license(webp external/libwebp/COPYING)
target_include_directories(${sdl3_image_target_name} PRIVATE external/libwebp/src)
add_library(WebP::webp ALIAS webp)
add_library(WebP::webpdemux ALIAS webpdemux)
if(SDLIMAGE_WEBP_SHARED OR NOT SDLIMAGE_BUILD_SHARED_LIBS)
list(APPEND INSTALL_EXTRA_TARGETS webp webpdemux)
if(NOT SDLIMAGE_WEBP_SHARED)
list(APPEND INSTALL_EXTRA_TARGETS sharpyuv)
endif()
endif()
set_target_properties(webp PROPERTIES EXPORT_NAME "external_libwebp")
set_target_properties(webpdemux PROPERTIES EXPORT_NAME "external_webpdemux")
set_target_properties(sharpyuv PROPERTIES EXPORT_NAME "external_sharpyuv")
add_library(SDL3_image::external_libwebp ALIAS webp)
elseif(SDLIMAGE_WEBP_SHARED AND DEFINED SDLIMAGE_DYNAMIC_WEBP AND EXISTS "${SDLIMAGE_DYNAMIC_WEBP}" AND DEFINED SDLIMAGE_DYNAMIC_WEBPDEMUX AND EXISTS "${SDLIMAGE_DYNAMIC_WEBPDEMUX}")
message(STATUS "${PROJECT_NAME}: Using libwebp from CMake variable")
set(SDLIMAGE_WEBP_ENABLED TRUE)
else()
find_package(webp ${required})
if(webp_FOUND)
message(STATUS "${PROJECT_NAME}: Using system libwebp")
set(SDLIMAGE_WEBP_ENABLED TRUE)
if(NOT SDLIMAGE_WEBP_SHARED)
list(APPEND PC_REQUIRES libwebp libwebpdemux)
list(APPEND INSTALL_EXTRA_CMAKE_MODULES cmake/Findwebp.cmake)
endif()
else()
message(${fatal_error} "libwebp NOT found")
endif()
endif()
if(SDLIMAGE_WEBP_ENABLED)
target_compile_definitions(${sdl3_image_target_name} PRIVATE LOAD_WEBP)
if(SDLIMAGE_WEBP_SHARED)
if(NOT DEFINED SDLIMAGE_DYNAMIC_WEBP AND NOT DEFINED SDLIMAGE_DYNAMIC_WEBPDEMUX)
target_include_directories(${sdl3_image_target_name} PRIVATE
$<TARGET_PROPERTY:WebP::webp,INCLUDE_DIRECTORIES>
$<TARGET_PROPERTY:WebP::webp,INTERFACE_INCLUDE_DIRECTORIES>
$<TARGET_PROPERTY:WebP::webp,INTERFACE_SYSTEM_INCLUDE_DIRECTORIES>
$<TARGET_PROPERTY:WebP::webpdemux,INCLUDE_DIRECTORIES>
$<TARGET_PROPERTY:WebP::webpdemux,INTERFACE_INCLUDE_DIRECTORIES>
$<TARGET_PROPERTY:WebP::webpdemux,INTERFACE_SYSTEM_INCLUDE_DIRECTORIES>
)
if(SDLIMAGE_WEBP_VENDORED)
add_dependencies(${sdl3_image_target_name} WebP::webp WebP::webpdemux)
endif()