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CMakeLists.txt
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CMakeLists.txt
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# Copyright 2015-2023 The Khronos Group Inc.
# Copyright 2022-2023 RasterGrid Kft.
# SPDX-License-Identifier: Apache-2.0
cmake_minimum_required(VERSION 3.15)
include(CMakePrintHelpers)
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake/modules/")
find_package(Bash REQUIRED)
include(cmake/version.cmake)
if(POLICY CMP0149)
# Ignore CMAKE_SYSTEM_VERSION and select either latest available
# Windows SDK or that specified in WindowsSDKVersion environment
# variable Needed because OLD policy picks SDK that matches
# system version, CI uses Windows Server 2022 and its matching
# SDK lacks the arm64 glu32.lib which causes builds to fail.
# MUST be set before project() command.
cmake_policy(SET CMP0149 NEW)
endif()
project(KTX-Software
VERSION ${KTX_VERSION}
DESCRIPTION "Libraries and tools to create and read KTX image texture files."
)
include(CTest)
include(GNUInstallDirs)
include(CMakeDependentOption)
include(cmake/codesign.cmake)
include(cmake/cputypetest.cmake)
# OPTIONS
if( IOS OR EMSCRIPTEN )
set( LIB_TYPE_DEFAULT ON )
else()
set( LIB_TYPE_DEFAULT OFF )
endif()
CMAKE_DEPENDENT_OPTION( KTX_FEATURE_TOOLS
"Create KTX tools"
ON
"NOT IOS;NOT ANDROID;NOT EMSCRIPTEN"
OFF
)
option( KTX_FEATURE_DOC "Create KTX documentation." OFF )
option( KTX_FEATURE_STATIC_LIBRARY "Create static libraries (shared otherwise)." ${LIB_TYPE_DEFAULT} )
option( KTX_FEATURE_JNI "Create Java bindings for libktx." OFF )
option( KTX_FEATURE_PY "Create Python source distribution." OFF )
option( KTX_FEATURE_TESTS "Create unit tests." ON )
option( KTX_FEATURE_TOOLS_CTS "Enable KTX CLI Tools CTS tests (requires CTS submodule)." OFF )
if(KTX_FEATURE_TOOLS_CTS AND NOT KTX_FEATURE_TOOLS)
message(WARNING "KTX_FEATURE_TOOLS is not set -> disabling KTX_FEATURE_TOOLS_CTS.")
set(KTX_FEATURE_TOOLS_CTS "OFF")
elseif(KTX_FEATURE_TOOLS_CTS AND NOT KTX_FEATURE_TESTS)
message(WARNING "KTX_FEATURE_TESTS is not set -> disabling KTX_FEATURE_TOOLS_CTS.")
set(KTX_FEATURE_TOOLS_CTS "OFF")
endif()
if(POLICY CMP0127)
# cmake_dependent_option() supports full Condition Syntax. Introduced in
# 3.22. Not all build environments have 3.22+. Set policy to avoid warning.
# Seems the parens in the match string trigger the warning.
cmake_policy(SET CMP0127 NEW)
endif()
set_target_processor_type(CPU_ARCHITECTURE)
CMAKE_DEPENDENT_OPTION( BASISU_SUPPORT_SSE
"Compile with SSE support so applications can choose to use it."
ON
"NOT CMAKE_OSX_ARCHITECTURES STREQUAL \"$(ARCHS_STANDARD)\"; CPU_ARCHITECTURE STREQUAL x86_64 OR CPU_ARCHITECTURE STREQUAL x86"
OFF
)
CMAKE_DEPENDENT_OPTION( BASISU_SUPPORT_OPENCL
"Compile with OpenCL support so applications can choose to use it."
OFF
"OpenCL_FOUND OR WIN32"
OFF
)
if(BASISU_SUPPORT_OPENCL)
find_package(OpenCL)
endif()
if(BASISU_SUPPORT_OPENCL AND WIN32 AND NOT OpenCL_FOUND)
# To avoid fiddly setting up of OpenCL on Windows CI VMs, use copy in repo.
set(OpenCL_INCLUDE_DIR
"${CMAKE_CURRENT_SOURCE_DIR}/lib/basisu/opencl"
# FORCE to override *-NOTFOUND set by the failed find.
CACHE PATH "" FORCE
)
set(OpenCL_LIBRARY
"${CMAKE_CURRENT_SOURCE_DIR}/lib/basisu/opencl/lib/OpenCL64.lib"
CACHE FILEPATH "" FORCE
)
set(OpenCL_INCLUDE_DIRS ${OpenCL_INCLUDE_DIR})
set(OpenCL_LIBRARIES ${OpenCL_LIBRARY})
endif()
CMAKE_DEPENDENT_OPTION( KTX_EMBED_BITCODE
"Embed bitcode in binaries."
OFF
"APPLE AND IOS"
OFF
)
option( KTX_FEATURE_KTX1 "Enable KTX 1 support." ON )
option( KTX_FEATURE_KTX2 "Enable KTX 2 support." ON )
option( KTX_FEATURE_VK_UPLOAD "Enable Vulkan texture upload." ON )
option( KTX_FEATURE_GL_UPLOAD "Enable OpenGL texture upload." ON )
# When a variable like this is set via CMakeUserPresets.json, it no longer
# shows the selectable options provided by the STRINGS property.
set( KTX_FEATURE_LOADTEST_APPS
""
CACHE
STRING
"Load test apps test the upload feature by displaying various KTX textures. Select which to create. \"OpenGL\" includes OpenGL ES."
)
set_property( CACHE KTX_FEATURE_LOADTEST_APPS
PROPERTY STRINGS OFF OpenGL Vulkan OpenGL+Vulkan
)
if(WIN32 OR APPLE)
if(NOT IOS)
CMAKE_DEPENDENT_OPTION( KTX_LOADTEST_APPS_USE_LOCAL_DEPENDENCIES
"Look for locally installed dependencies. Fail build if not found. When OFF use binaries from the KTX-Software repo, if available for the target processor. Useful when building for Windows arm64 using vcpkg packages."
OFF
KTX_FEATURE_LOADTEST_APPS
OFF
)
endif()
else()
set( KTX_LOADTEST_APPS_USE_LOCAL_DEPENDENCIES ON )
endif()
option( KTX_GENERATE_VK_FILES
"Include targets for generating VkFormat related files. For project developers only."
OFF
)
mark_as_advanced(FORCE KTX_GENERATE_VK_FILES)
# Platform specific settings
if(APPLE)
# Signing
set(XCODE_CODE_SIGN_IDENTITY "Development" CACHE STRING "Xcode code sign ID")
set(XCODE_DEVELOPMENT_TEAM "" CACHE STRING "Xcode development team ID")
set(PRODUCTBUILD_IDENTITY_NAME "" CACHE STRING "productbuild identity name")
set(PRODUCTBUILD_KEYCHAIN_PATH "" CACHE FILEPATH "pkgbuild keychain file")
if(IOS)
set(XCODE_PROVISIONING_PROFILE_SPECIFIER "" CACHE STRING "Xcode provisioning profile specifier")
set(MOLTENVK_SDK "$ENV{VULKAN_SDK}/../MoltenVK" CACHE STRING "MoltenVK directory inside the Vulkan SDK")
endif()
# Deployment
set(CMAKE_OSX_DEPLOYMENT_TARGET "10.11" CACHE STRING "macOS Deployment Target")
if(IOS)
set(CMAKE_XCODE_ATTRIBUTE_IPHONEOS_DEPLOYMENT_TARGET "11.0" CACHE STRING "iOS Deployment Target")
set(CMAKE_XCODE_ATTRIBUTE_ONLY_ACTIVE_ARCH NO)
endif()
endif()
if(WIN32)
if (${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.18.0")
include(KtxDependentVariable)
# Signing
set(CODE_SIGN_KEY_VAULT "" CACHE STRING "Name of the vault to search for signing certificate. Enables related code signing variables when set.")
set_property(CACHE CODE_SIGN_KEY_VAULT
PROPERTY STRINGS "" Azure Machine User)
# Common signing variables
KTX_DEPENDENT_VARIABLE( CODE_SIGN_TIMESTAMP_URL STRING
"URL of timestamp server for code signing. Signed code should be timestamped so the signature will remain valid even after the certificate expires."
""
"CODE_SIGN_KEY_VAULT"
""
)
# Variables for signing with local certificate.
KTX_DEPENDENT_VARIABLE( LOCAL_KEY_VAULT_SIGNING_IDENTITY STRING
"Subject Name of Windows code signing certificate. Displayed in 'Issued To' field of cert{lm,mgr}. Overriden by LOCAL_KEY_VAULT_CERTIFICATE_THUMBPRINT."
""
"CODE_SIGN_KEY_VAULT;${CODE_SIGN_KEY_VAULT} MATCHES Machine OR ${CODE_SIGN_KEY_VAULT} MATCHES User"
""
)
KTX_DEPENDENT_VARIABLE( LOCAL_KEY_VAULT_CERTIFICATE_THUMBPRINT STRING
"Thumbprint of the certificate to use. Use this instead of LOCAL_KEY_VAULT_SIGNING_IDENTITY when you have multiple certificates with the same identity. Overrides LOCAL_KEY_VAULT_SIGNING_IDENTITY."
""
"CODE_SIGN_KEY_VAULT;${CODE_SIGN_KEY_VAULT} MATCHES Machine OR ${CODE_SIGN_KEY_VAULT} MATCHES User"
""
)
# Variables for signing with certificate from Azure
KTX_DEPENDENT_VARIABLE( AZURE_KEY_VAULT_URL STRING
"The URL of your Azure key vault."
""
"CODE_SIGN_KEY_VAULT;${CODE_SIGN_KEY_VAULT} MATCHES Azure"
""
)
KTX_DEPENDENT_VARIABLE( AZURE_KEY_VAULT_CERTIFICATE STRING
"The name of the certificate in Azure Key Vault."
""
"CODE_SIGN_KEY_VAULT;${CODE_SIGN_KEY_VAULT} MATCHES Azure"
""
)
KTX_DEPENDENT_VARIABLE( AZURE_KEY_VAULT_CLIENT_ID STRING
"The id of an application (Client) registered with Azure that has permission to access the certificate."
""
"CODE_SIGN_KEY_VAULT;${CODE_SIGN_KEY_VAULT} MATCHES Azure"
""
)
KTX_DEPENDENT_VARIABLE( AZURE_KEY_VAULT_TENANT_ID STRING
"The id of the Azure Active Directory (Tenant) holding the Client."
""
"CODE_SIGN_KEY_VAULT;${CODE_SIGN_KEY_VAULT} MATCHES Azure"
""
)
KTX_DEPENDENT_VARIABLE( AZURE_KEY_VAULT_CLIENT_SECRET STRING
"The secret to authenticate access to the Client."
""
"CODE_SIGN_KEY_VAULT;${CODE_SIGN_KEY_VAULT} MATCHES Azure"
""
)
else()
# KTX_DEPENDENT_VARIABLE won't work. Force disable signing.
unset(CODE_SIGN_KEY_VAULT CACHE)
endif()
# Windows Store Compatibility
if (${CMAKE_SYSTEM_NAME} STREQUAL "WindowsStore")
# Disable OpenGL upload on Universal Windows Platform
set(KTX_FEATURE_GL_UPLOAD OFF)
endif()
endif()
if(UNIX AND NOT APPLE AND NOT EMSCRIPTEN AND NOT ANDROID)
set(LINUX TRUE)
endif()
if(EMSCRIPTEN)
set( KTX_FEATURE_VK_UPLOAD OFF )
endif()
set(bitness 64)
if(NOT CMAKE_SIZEOF_VOID_P EQUAL 8 OR FORCE32)
set(bitness 32)
endif()
if(KTX_FEATURE_STATIC_LIBRARY)
set(LIB_TYPE STATIC)
else()
if(IOS OR EMSCRIPTEN)
message(SEND_ERROR "Library type cannot be shared for the current platform. Set KTX_FEATURE_STATIC_LIBRARY to ON!")
endif()
set(LIB_TYPE SHARED)
endif()
# Depends on the settings, so it must be included after
if(KTX_GENERATE_VK_FILES)
include(cmake/mkvk.cmake)
endif()
# Global compile & link options including optimization flags
option( KTX_WERROR "Make all warnings in KTX code into errors." OFF)
if(MSVC)
# ";" argument separator is problematic. Can't use a GenEx `$<IF:`
# because `/W4;/WX` is returned as a single string.
add_compile_options( /W4;$<$<BOOL:${KTX_WERROR}>:/WX> )
add_compile_options( $<IF:$<CONFIG:Debug>,/Gz,/O2> )
# Enable UTF-8 support
add_compile_options( $<$<C_COMPILER_ID:MSVC>:/utf-8> )
add_compile_options( $<$<CXX_COMPILER_ID:MSVC>:/utf-8> )
elseif(${CMAKE_CXX_COMPILER_ID} STREQUAL "GNU"
OR ${CMAKE_CXX_COMPILER_ID} MATCHES "Clang")
add_compile_options( -Wall -Wextra $<$<BOOL:${KTX_WERROR}>:-Werror>)
add_compile_options( $<IF:$<CONFIG:Debug>,-O0,-O3> )
if(EMSCRIPTEN)
add_link_options( $<IF:$<CONFIG:Debug>,-gsource-map,-O3> )
else()
add_link_options( $<IF:$<CONFIG:Debug>,-g,-O3> )
endif()
else()
message(FATAL_ERROR "${CMAKE_CXX_COMPILER_ID} not yet supported.")
endif()
# To improve output determinism enable precise floating point operations globally
# This code was based on lib/astc-encoder/Source/cmake_core.cmake
# For Visual Studio prior to 2022 (compiler < 19.30) /fp:strict
# For Visual Studio 2022 (compiler >= 19.30) /fp:precise
# For Visual Studio 2022 ClangCL seems to have accidentally enabled contraction by default,
# so behaves differently to CL.exe. Use the -Xclang argument to workaround and allow access
# GNU-style switch to control contraction and force disable.
# On CMake 3.25 or older CXX_COMPILER_FRONTEND_VARIANT is not always set
if(CMAKE_CXX_COMPILER_FRONTEND_VARIANT STREQUAL "")
set(CMAKE_CXX_COMPILER_FRONTEND_VARIANT "${CMAKE_CXX_COMPILER_ID}")
endif()
# Compiler accepts MSVC-style command line options
set(is_msvc_fe "$<STREQUAL:${CMAKE_CXX_COMPILER_FRONTEND_VARIANT},MSVC>")
# Compiler accepts GNU-style command line options
set(is_gnu_fe1 "$<STREQUAL:${CMAKE_CXX_COMPILER_FRONTEND_VARIANT},GNU>")
# Compiler accepts AppleClang-style command line options, which is also GNU-style
set(is_gnu_fe2 "$<STREQUAL:${CMAKE_CXX_COMPILER_FRONTEND_VARIANT},AppleClang>")
# Compiler accepts GNU-style command line options
set(is_gnu_fe "$<OR:${is_gnu_fe1},${is_gnu_fe2}>")
# Compiler is Visual Studio cl.exe
set(is_msvccl "$<AND:${is_msvc_fe},$<CXX_COMPILER_ID:MSVC>>")
# Compiler is Visual Studio clangcl.exe
set(is_clangcl "$<AND:${is_msvc_fe},$<CXX_COMPILER_ID:Clang>>")
# Compiler is upstream clang with the standard frontend
set(is_clang "$<AND:${is_gnu_fe},$<CXX_COMPILER_ID:Clang,AppleClang>>")
if(${is_msvccl} AND $<VERSION_LESS:$<CXX_COMPILER_VERSION>,19.30>)
add_compile_options(/fp:strict)
endif()
if(${is_msvccl} AND $<VERSION_GREATER_EQUAL:$<CXX_COMPILER_VERSION>,19.30>)
add_compile_options(/fp:precise)
endif()
if(${is_clangcl})
add_compile_options(/fp:precise)
endif()
if(${is_clangcl} AND $<VERSION_GREATER_EQUAL:$<CXX_COMPILER_VERSION>,14.0.0>)
add_compile_options(-Xclang -ffp-contract=off)
endif()
if(${is_clang} AND $<VERSION_GREATER_EQUAL:$<CXX_COMPILER_VERSION>,10.0.0>)
add_compile_options(-ffp-model=precise)
endif()
if(${is_gnu_fe})
add_compile_options(-ffp-contract=off)
endif()
set(KTX_BUILD_DIR "${CMAKE_BINARY_DIR}")
set(KTX_MAIN_SRC
include/KHR/khr_df.h
include/ktx.h
lib/basis_sgd.h
lib/basis_transcode.cpp
lib/miniz_wrapper.cpp
lib/basisu/transcoder/basisu_containers.h
lib/basisu/transcoder/basisu_containers_impl.h
lib/basisu/transcoder/basisu_file_headers.h
lib/basisu/transcoder/basisu_transcoder_internal.h
lib/basisu/transcoder/basisu_transcoder_uastc.h
lib/basisu/transcoder/basisu_transcoder.cpp
lib/basisu/transcoder/basisu_transcoder.h
lib/basisu/transcoder/basisu.h
lib/basisu/zstd/zstd.c
lib/checkheader.c
lib/dfdutils/createdfd.c
lib/dfdutils/colourspaces.c
lib/dfdutils/dfd.h
lib/dfdutils/interpretdfd.c
lib/dfdutils/printdfd.c
lib/dfdutils/queries.c
lib/dfdutils/vk2dfd.c
lib/dfdutils/vk2dfd.inl
lib/dfdutils/vulkan/vk_platform.h
lib/dfdutils/vulkan/vulkan_core.h
lib/etcdec.cxx
lib/etcunpack.cxx
lib/filestream.c
lib/filestream.h
lib/formatsize.h
lib/gl_format.h
lib/hashlist.c
lib/info.c
lib/ktxint.h
lib/memstream.c
lib/memstream.h
lib/strings.c
lib/swap.c
lib/texture.c
lib/texture.h
lib/texture2.c
lib/texture2.h
lib/uthash.h
lib/vk2gl.h
lib/vk_format.h
lib/vkFormat2glFormat.inl
lib/vkFormat2glInternalFormat.inl
lib/vkFormat2glType.inl
lib/vkformat_check.c
lib/vkformat_enum.h
lib/vkformat_str.c
lib/vkformat_typesize.c
)
set(BASISU_ENCODER_CXX_SRC
lib/basisu/encoder/basisu_backend.cpp
lib/basisu/encoder/basisu_backend.h
lib/basisu/encoder/basisu_basis_file.cpp
lib/basisu/encoder/basisu_basis_file.h
lib/basisu/encoder/basisu_bc7enc.cpp
lib/basisu/encoder/basisu_bc7enc.h
lib/basisu/encoder/basisu_comp.cpp
lib/basisu/encoder/basisu_comp.h
lib/basisu/encoder/basisu_enc.cpp
lib/basisu/encoder/basisu_enc.h
lib/basisu/encoder/basisu_etc.cpp
lib/basisu/encoder/basisu_etc.h
lib/basisu/encoder/basisu_frontend.cpp
lib/basisu/encoder/basisu_frontend.h
lib/basisu/encoder/basisu_gpu_texture.cpp
lib/basisu/encoder/basisu_gpu_texture.h
lib/basisu/encoder/basisu_kernels_declares.h
lib/basisu/encoder/basisu_kernels_imp.h
lib/basisu/encoder/basisu_kernels_sse.cpp
lib/basisu/encoder/basisu_miniz.h
lib/basisu/encoder/basisu_opencl.cpp
lib/basisu/encoder/basisu_opencl.h
lib/basisu/encoder/basisu_pvrtc1_4.cpp
lib/basisu/encoder/basisu_pvrtc1_4.h
lib/basisu/encoder/basisu_resample_filters.cpp
lib/basisu/encoder/basisu_resampler_filters.h
lib/basisu/encoder/basisu_resampler.cpp
lib/basisu/encoder/basisu_resampler.h
lib/basisu/encoder/basisu_ssim.cpp
lib/basisu/encoder/basisu_ssim.h
lib/basisu/encoder/basisu_uastc_enc.cpp
lib/basisu/encoder/basisu_uastc_enc.h
lib/basisu/encoder/cppspmd_flow.h
lib/basisu/encoder/cppspmd_math.h
lib/basisu/encoder/cppspmd_math_declares.h
lib/basisu/encoder/cppspmd_sse.h
lib/basisu/encoder/cppspmd_type_aliases.h
)
if(KTX_FEATURE_GL_UPLOAD)
list(APPEND KTX_MAIN_SRC
lib/gl_funcs.c
lib/gl_funcs.h
lib/glloader.c
)
endif()
if(WIN32)
# By wrapping in generator expression we force multi configuration
# generators (like Visual Studio) to take the exact path and not
# change it.
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY $<1:${KTX_BUILD_DIR}/$<CONFIG>>)
elseif(APPLE OR LINUX)
if(NOT IOS)
# Set a common RUNTIME_OUTPUT_DIR and LIBRARY_OUTPUT_DIR for all targets,
# so that INSTALL RPATH is functional in build directory as well.
# BUILD_WITH_INSTALL_RPATH is necessary for working code signing.
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY $<1:${KTX_BUILD_DIR}/$<CONFIG>>)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY $<1:${KTX_BUILD_DIR}/$<CONFIG>>)
endif()
endif()
# Main library
add_library( ktx ${LIB_TYPE}
${KTX_MAIN_SRC}
)
# Read-only library
add_library( ktx_read ${LIB_TYPE}
${KTX_MAIN_SRC}
)
macro(common_libktx_settings target enable_write library_type)
if(TARGET mkvk)
# Creating vulkan headers only required after Vulkan Spec/SDK updates.
add_dependencies(${target} mkvk)
endif()
set_target_properties(${target} PROPERTIES
PUBLIC_HEADER
# "${CMAKE_CURRENT_SOURCE_DIR}/include/ktx.h;${CMAKE_CURRENT_SOURCE_DIR}/include/KHR/khr_df.h"
# Omit khr_df.h. Its installation has to be handled separately to
# workaround CMake's failure to preserve the directory hierarchy.
"${CMAKE_CURRENT_SOURCE_DIR}/include/ktx.h"
VERSION ${PROJECT_VERSION}
SOVERSION ${PROJECT_VERSION_MAJOR}
XCODE_ATTRIBUTE_ENABLE_HARDENED_RUNTIME "YES"
CXX_STANDARD 11
CXX_STANDARD_REQUIRED YES
)
if(IOS)
set_target_properties(${target} PROPERTIES
FRAMEWORK TRUE
)
endif()
if( NOT ${library_type} STREQUAL STATIC )
# Must not call this macro for static libs on Windows. To keep
# the if test simple, never call it for static libs. On macOS
# and iOS Xcode knows libs aren't signed so it would ignore the
# settings made by this macro.
set_code_sign(${target} "NOPPS")
endif()
target_compile_definitions(
${target}
PUBLIC
"$<$<CONFIG:Debug>:_DEBUG;DEBUG>"
PRIVATE
LIBKTX
)
# C/C++ Standard
target_compile_features(${target} PUBLIC c_std_99 cxx_std_11)
# Compiler Warning Flags
if(EMSCRIPTEN)
target_compile_options(${target} PRIVATE
-Wno-nested-anon-types
-Wno-gnu-anonymous-struct
)
else()
target_compile_options(${target} PRIVATE
# clang options
$<$<CXX_COMPILER_ID:AppleClang,Clang>:
-Wno-nested-anon-types
-Wno-gnu-anonymous-struct
>
$<$<CXX_COMPILER_ID:GNU>:
-Wno-cast-function-type
>
# not clang options
$<$<NOT:$<CXX_COMPILER_ID:MSVC>>:
-Wno-pedantic
>
)
endif()
target_include_directories(
${target}
PUBLIC
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
$<INSTALL_INTERFACE:include>
PRIVATE
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/lib/basisu/transcoder>
$<INSTALL_INTERFACE:lib/basisu/transcoder>
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/lib/basisu/zstd>
$<INSTALL_INTERFACE:lib/basisu/zstd>
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/utils>
$<INSTALL_INTERFACE:utils>
)
target_include_directories(
${target}
SYSTEM
PRIVATE
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/other_include>
$<INSTALL_INTERFACE:other_include>
)
if( ${library_type} STREQUAL STATIC )
target_compile_definitions(${target} PUBLIC KHRONOS_STATIC)
endif()
# To reduce size, don't support transcoding to ancient formats.
target_compile_definitions(${target} PRIVATE BASISD_SUPPORT_FXT1=0)
# TODO: make options for all formats and good per-platform defaults
# - BASISD_SUPPORT_UASTC
# - BASISD_SUPPORT_DXT1 (BC1)
# - BASISD_SUPPORT_DXT5A (BC3/4/5)
# - BASISD_SUPPORT_BC7
# - BASISD_SUPPORT_BC7_MODE5
# - BASISD_SUPPORT_PVRTC1
# - BASISD_SUPPORT_ETC2_EAC_A8
# - BASISD_SUPPORT_ASTC
# - BASISD_SUPPORT_ATC
# - BASISD_SUPPORT_ASTC_HIGHER_OPAQUE_QUALITY
# - BASISD_SUPPORT_ETC2_EAC_RG11
# - BASISD_SUPPORT_FXT1
# - BASISD_SUPPORT_PVRTC2
if(WIN32)
target_compile_definitions(
${target}
PRIVATE
# Only set dllexport when building a shared library.
$<$<STREQUAL:${library_type},SHARED>:KTX_API=__declspec\(dllexport\)>
PUBLIC # only for basisu_c_binding.
BASISU_NO_ITERATOR_DEBUG_LEVEL
)
# The generator automatically sets the needed VCLinker
# option when a .def file is seen in sources.
# The def files that we add have a different syntax depending on the ABI
if(MINGW)
target_sources(
${target}
PRIVATE
lib/internalexport_mingw.def
$<${enable_write}:lib/internalexport_write_mingw.def>
)
# Need these flags if mingw happens to target the ucrt (new) rather
# than the legacy msvcrt. Otherwise tests will fail to run because
# the necessary dlls will be missing. If we statically link
# them instead it's fine. This does not cause any abberations if
# the mingw toolchain targets msvcrt instead.
target_link_options(${target} PUBLIC -static-libgcc -static-libstdc++)
else()
target_sources(
${target}
PRIVATE
lib/internalexport.def
$<${enable_write}:lib/internalexport_write.def>
)
endif()
elseif(EMSCRIPTEN)
target_compile_definitions(${target} PRIVATE
# To reduce size, don't support transcoding to formats not
# supported # by WebGL.
BASISD_SUPPORT_ATC=0
BASISD_SUPPORT_PVRTC2=0
# Don't support higher quality mode to avoid 64k table.
BASISD_SUPPORT_ASTC_HIGHER_OPAQUE_QUALITY=0
KTX_OMIT_VULKAN=1
)
endif()
if(KTX_FEATURE_KTX1)
target_compile_definitions(${target} PUBLIC KTX_FEATURE_KTX1)
target_sources(
${target}
PRIVATE
lib/texture1.c
lib/texture1.h
)
endif()
if(KTX_FEATURE_KTX2)
target_compile_definitions(${target} PUBLIC KTX_FEATURE_KTX2)
endif()
if(WIN32)
if(MINGW)
# Check if the Threads package is provided; if using Mingw it MIGHT be
find_package(Threads)
if(Threads_FOUND AND CMAKE_USE_PTHREADS_INIT)
target_compile_definitions(${target} PRIVATE WIN32_HAS_PTHREADS)
target_link_libraries(${target} PRIVATE Threads::Threads)
endif()
endif()
elseif(APPLE)
if(KTX_EMBED_BITCODE)
target_compile_options(${target} PRIVATE "-fembed-bitcode")
endif()
elseif(LINUX)
find_package(Threads REQUIRED)
target_link_libraries(
${target}
PRIVATE
dl
Threads::Threads
)
endif()
if(KTX_FEATURE_VK_UPLOAD)
target_sources(
${target}
PRIVATE
include/ktxvulkan.h
lib/vk_funcs.c
lib/vk_funcs.h
lib/vkloader.c
)
target_include_directories(
${target}
PRIVATE
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/lib/dfdutils>
$<INSTALL_INTERFACE:lib/dfdutils>
)
get_target_property( KTX_PUBLIC_HEADER ${target} PUBLIC_HEADER )
list(APPEND KTX_PUBLIC_HEADER ${CMAKE_CURRENT_SOURCE_DIR}/include/ktxvulkan.h)
set_target_properties(${target} PROPERTIES
PUBLIC_HEADER "${KTX_PUBLIC_HEADER}"
)
else()
target_compile_definitions( ${target} PRIVATE KTX_OMIT_VULKAN=1 )
endif()
# Adding write capability to target ktx
if(${enable_write})
target_sources(
${target}
PRIVATE
lib/basis_encode.cpp
lib/astc_encode.cpp
${BASISU_ENCODER_C_SRC}
${BASISU_ENCODER_CXX_SRC}
lib/writer1.c
lib/writer2.c
)
target_include_directories(
${target}
PRIVATE
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/lib/basisu>
$<INSTALL_INTERFACE:lib/basisu>
$<$<BOOL:${BASISU_SUPPORT_OPENCL}>:${OpenCL_INCLUDE_DIRS}>
)
target_compile_definitions(
${target}
PUBLIC
KTX_FEATURE_WRITE
PRIVATE
# BASISD_SUPPORT_KTX2 has to be 1 to compile the encoder. We
# don't use it. Hopefully it doesn't add too much code. We're using
# the zstd encoder in basisu by explicitly including the file in our
# source list. We don't need the related code in the encoder.
BASISD_SUPPORT_KTX2_ZSTD=0
BASISD_SUPPORT_KTX2=1
$<$<BOOL:${BASISU_SUPPORT_SSE}>:BASISU_SUPPORT_SSE=1>
$<$<NOT:$<BOOL:${BASISU_SUPPORT_SSE}>>:BASISU_SUPPORT_SSE=0>
$<$<BOOL:${BASISU_SUPPORT_OPENCL}>:BASISU_SUPPORT_OPENCL=1>
$<$<NOT:$<BOOL:${BASISU_SUPPORT_OPENCL}>>:BASISU_SUPPORT_OPENCL=0>
)
target_compile_options(
${target}
PRIVATE
$<$<AND:$<BOOL:${BASISU_SUPPORT_SSE}>,$<CXX_COMPILER_ID:AppleClang,Clang,GNU>>:
-msse4.1
>
)
target_link_libraries(
${target}
PRIVATE
$<$<BOOL:${BASISU_SUPPORT_OPENCL}>:${OpenCL_LIBRARIES}>
)
endif()
endmacro(common_libktx_settings)
common_libktx_settings(ktx 1 ${LIB_TYPE})
common_libktx_settings(ktx_read 0 ${LIB_TYPE})
if(KTX_FEATURE_JNI)
add_subdirectory(interface/java_binding)
endif()
if(KTX_FEATURE_PY)
add_subdirectory(interface/python_binding)
endif()
create_version_header(lib ktx)
create_version_file()
target_compile_definitions(
ktx_read
PRIVATE
# We're reading the files ourselves so don't need Basis KTX v2 support.
BASISD_SUPPORT_KTX2_ZSTD=0
BASISD_SUPPORT_KTX2=0
)
# Turn off these warnings until Rich fixes the occurences.
# It it not clear to me if generator expressions can be used here
# hence the long-winded way.
#message(STATUS
# "CMAKE_CXX_COMPILER_ID = ${CMAKE_CXX_COMPILER_ID} "
# "CMAKE_CXX_COMPILER_VERSION = ${CMAKE_CXX_COMPILER_VERSION}"
#)
if(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
# Currently no need to disable any warnings in basisu code. Rich fixed them.
elseif(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
set_source_files_properties(
# It's too much work to discriminate which files need which warnings
# disabled.
${BASISU_ENCODER_CXX_SRC}
PROPERTIES COMPILE_OPTIONS "-Wno-sign-compare;-Wno-unused-variable;-Wno-class-memaccess;-Wno-misleading-indentation;-Wno-extra;-Wno-deprecated-copy;-Wno-parentheses;-Wno-strict-aliasing"
)
set_source_files_properties(
lib/basisu/transcoder/basisu_transcoder.cpp
PROPERTIES COMPILE_OPTIONS "-Wno-sign-compare;-Wno-unused-function;-Wno-unused-variable;-Wno-class-memaccess;-Wno-maybe-uninitialized"
)
if (${CMAKE_CXX_COMPILER_VERSION} VERSION_GREATER_EQUAL "11")
if (${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS "12" )
# Version 11 raises several stringop-overflow warnings in some
# very hard to decipher code. They appear to be bogus based on
# the facts that we have never seen a crash and version 12 no
# longer raises the warnings.
get_source_file_property(cur_options
lib/basisu/encoder/basisu_comp.cpp
COMPILE_OPTIONS
)
set_source_files_properties(
lib/basisu/encoder/basisu_comp.cpp
PROPERTIES COMPILE_OPTIONS "${cur_options};-Wno-stringop-overflow"
)
endif()
endif()
if (${CMAKE_CXX_COMPILER_VERSION} VERSION_GREATER_EQUAL "12.0")
# Version 12 newly raises this warning on basisu_uastc_enc.cpp.
# There seems no way for the index calculated by the code at
# line 326, where the error is raised, to be > the array length.
# Also we have never seen any crashes.
set_source_files_properties(
lib/basisu/encoder/basisu_uastc_enc.cpp
PROPERTIES COMPILE_OPTIONS "-Wno-stringop-overflow"
)
endif()
elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
if (CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang")
# Versions equivalency from https://en.wikipedia.org/wiki/Xcode#Xcode_11.x_-_14.x_(since_SwiftUI_framework)_2
if (${CMAKE_CXX_COMPILER_VERSION} VERSION_GREATER_EQUAL "14")
set( clang_version ${CMAKE_CXX_COMPILER_VERSION})
elseif (${CMAKE_CXX_COMPILER_VERSION} VERSION_GREATER_EQUAL "13.1.0")
set( clang_version "13.0.0")
elseif (${CMAKE_CXX_COMPILER_VERSION} VERSION_GREATER_EQUAL "13.0.0")
set( clang_version "12.0.0")
elseif (${CMAKE_CXX_COMPILER_VERSION} VERSION_GREATER_EQUAL "12.0.5")
set( clang_version "11.1.0")
elseif (${CMAKE_CXX_COMPILER_VERSION} VERSION_EQUAL "12.0.0")
set( clang_version "10.0.0")
else()
message(FATAL_ERROR "Unsupported AppleClang version")
endif()
else()
set( clang_version ${CMAKE_CXX_COMPILER_VERSION} )
endif()
# BEWARE: set_source_files_properties is not additive; it replaces.
if (${clang_version} VERSION_GREATER_EQUAL "12.0.0")
set_source_files_properties( lib/basisu/encoder/basisu_kernels_sse.cpp
PROPERTIES COMPILE_OPTIONS "-Wno-unused-parameter;-Wno-deprecated-copy;-Wno-uninitialized-const-reference"
)
else()
set_source_files_properties( lib/basisu/encoder/basisu_kernels_sse.cpp
PROPERTIES COMPILE_OPTIONS "-Wno-unused-parameter"
)
endif()
if (${clang_version} VERSION_GREATER_EQUAL "14.0")
# These are for Emscripten which is ahead of xcode in its clang
# version. Also future proofing for when xcode catches up.
set_source_files_properties(
${BASISU_ENCODER_CXX_SRC}
PROPERTIES COMPILE_OPTIONS "-Wno-sign-compare;-Wno-unused-variable;-Wno-unused-parameter;-Wno-deprecated-copy-with-user-provided-copy"
)
set_source_files_properties(
lib/basisu/transcoder/basisu_transcoder.cpp
PROPERTIES COMPILE_OPTIONS "-Wno-sign-compare;-Wno-unused-function;-Wno-unused-variable"
)
set_source_files_properties(
lib/basisu/zstd/zstd.c
PROPERTIES COMPILE_OPTIONS "-Wno-unused-function"
)
endif()
else()
message(FATAL_ERROR "${CMAKE_CXX_COMPILER_ID} not yet supported.")
endif()
# Retrieve the final set of properties for use by the transcodetests.
# We do this because the CMake feature that would allow the transcodetests
# target to retrieve these from the ktx target are not available until
# v18 and we still need to work with v16 in the Emscripten Docker image.
get_source_file_property(transcoder_options
lib/basisu/transcoder/basisu_transcoder.cpp
COMPILE_OPTIONS
)
get_source_file_property(zstd_options lib/basisu/zstd/zstd.c COMPILE_OPTIONS)
if(EMSCRIPTEN)
set(
KTX_EMC_LINK_FLAGS
--bind
"SHELL:--source-map-base ./"
"SHELL:-s ALLOW_MEMORY_GROWTH=1"
"SHELL:-s ASSERTIONS=0"
"SHELL:-s MALLOC=emmalloc"
"SHELL:-s MODULARIZE=1"
"SHELL:-s FULL_ES3=1"
)
add_executable( ktx_js interface/js_binding/ktx_wrapper.cpp )
target_link_libraries( ktx_js ktx_read )
target_include_directories( ktx_js PRIVATE $<TARGET_PROPERTY:ktx_read,INTERFACE_INCLUDE_DIRECTORIES> )
target_link_options(
ktx_js
PUBLIC
${KTX_EMC_LINK_FLAGS}
"SHELL:-s EXPORT_NAME=LIBKTX"
"SHELL:-s EXPORTED_RUNTIME_METHODS=[\'GL\']"
"SHELL:-s GL_PREINITIALIZED_CONTEXT=1"
"SHELL:-s GL_ENABLE_GET_PROC_ADDRESS=1" # For Emscripten 3.1.51+
)
set_target_properties( ktx_js PROPERTIES OUTPUT_NAME "libktx")
add_custom_command(
TARGET ktx_js
POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy "$<TARGET_FILE_DIR:ktx_js>/$<TARGET_FILE_PREFIX:ktx_js>$<TARGET_FILE_BASE_NAME:ktx_js>.js" "${PROJECT_SOURCE_DIR}/tests/webgl"
COMMAND ${CMAKE_COMMAND} -E copy "$<TARGET_FILE_DIR:ktx_js>/$<TARGET_FILE_PREFIX:ktx_js>$<TARGET_FILE_BASE_NAME:ktx_js>.wasm" "${PROJECT_SOURCE_DIR}/tests/webgl"
COMMENT "Copy libktx.js and libktx.wasm to tests/webgl"
)
install(TARGETS ktx_js
RUNTIME
DESTINATION .
COMPONENT ktx_js
)
install(FILES ${CMAKE_BINARY_DIR}/libktx.wasm
DESTINATION .
COMPONENT ktx_js
)
add_executable( msc_basis_transcoder_js interface/js_binding/transcoder_wrapper.cpp )
target_link_libraries( msc_basis_transcoder_js ktx_read )
target_include_directories( msc_basis_transcoder_js
PRIVATE
lib
lib/basisu/transcoder
)
# Re-use ktx's compile options
target_compile_options(msc_basis_transcoder_js
PRIVATE
$<TARGET_PROPERTY:ktx_read,INTERFACE_COMPILE_OPTIONS>
)
target_link_options(
msc_basis_transcoder_js
PUBLIC
${KTX_EMC_LINK_FLAGS}
"SHELL:-s EXPORT_NAME=MSC_TRANSCODER"
# Re-use ktx's link options
$<TARGET_PROPERTY:ktx_read,INTERFACE_LINK_OPTIONS>
)
set_target_properties( msc_basis_transcoder_js PROPERTIES OUTPUT_NAME "msc_basis_transcoder")
add_custom_command(
TARGET ktx_js
POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy "$<TARGET_FILE_DIR:msc_basis_transcoder_js>/$<TARGET_FILE_PREFIX:msc_basis_transcoder_js>$<TARGET_FILE_BASE_NAME:msc_basis_transcoder_js>.js" "${PROJECT_SOURCE_DIR}/tests/webgl"
COMMAND ${CMAKE_COMMAND} -E copy "$<TARGET_FILE_DIR:msc_basis_transcoder_js>/$<TARGET_FILE_PREFIX:msc_basis_transcoder_js>$<TARGET_FILE_BASE_NAME:msc_basis_transcoder_js>.wasm" "${PROJECT_SOURCE_DIR}/tests/webgl"
COMMENT "Copy msc_basis_transcoder.js and msc_basis_transcoder.wasm to tests/webgl"
)
install(TARGETS msc_basis_transcoder_js
RUNTIME
DESTINATION .
COMPONENT msc_basis_transcoder_js
)
install(FILES ${CMAKE_BINARY_DIR}/msc_basis_transcoder.wasm
DESTINATION .
COMPONENT msc_basis_transcoder_js
)
endif()
add_library( objUtil STATIC
utils/argparser.cpp
utils/argparser.h
utils/ktxapp.h
utils/sbufstream.h
utils/scapp.h
utils/stdafx.h
utils/platform_utils.h
utils/unused.h
)
target_include_directories(
objUtil
PUBLIC
utils
)
# In C++ apps that use statically linked Libraries all compilatiom units must
# be compiled with matching symbol visibility settings to avoid warnings from
# clang. Many 3rd party libraries, including libassimp which is used by the
# load test apps that statically link also to several internal libraries, use
# "hidden" to avoid conflicts with other libraries.
#
# TODO: set "hidden" as a global option. I do not want to take the time right
# now to deal with the fallout from hiding globals in libktx. Apart from
# having to mark all the public symbols of libktx for clang and gcc with
# __attribute__((visibility("default"))) there will be ramifications to
# texturetests and unittests. Marking the public symbols is easy for those
# already tagged with KTX_API. But all the symbols exported via
# internalexport.def and internalexport_write.def have to be tagged with
# KTX_API which may also require additional inclusion of ktx.h to get the
# definition.
set (STATIC_APP_LIB_SYMBOL_VISIBILITY hidden)
set_target_properties(objUtil PROPERTIES
CXX_VISIBILITY_PRESET ${STATIC_APP_LIB_SYMBOL_VISIBILITY}
)
if(KTX_FEATURE_STATIC_LIBRARY AND
(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" OR CMAKE_CXX_COMPILER_ID MATCHES "Clang"))
set_source_files_properties(
lib/astc_encode.cpp
PROPERTIES COMPILE_OPTIONS "-fvisibility=hidden"
)