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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 3.22)
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()
include(CMakeDependentOption)
include(cmake/codesign.cmake)
include(cmake/cputypetest.cmake)
# OPTIONS
# N.B IOS and, in the Darwin case, CMAKE_SYSTEM_NAME are not set
# until after the project() command. The latter is most strange.
if(APPLE)
if(CMAKE_SYSTEM_NAME STREQUAL "iOS" OR CMAKE_SYSTEM_NAME STREQUAL "tvOS" OR CMAKE_SYSTEM_NAME STREQUAL "visionOS")
set( APPLE_LOCKED_OS ON )
else()
set( APPLE_MAC_OS ON )
endif()
endif()
option( KTX_FEATURE_DOC "Create KTX documentation." OFF )
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 )
option( KTX_FEATURE_ETC_UNPACK "ETC decoding support." ON )
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()
CMAKE_DEPENDENT_OPTION( KTX_EMBED_BITCODE
"Embed bitcode in binaries."
OFF
"APPLE AND APPLE_LOCKED_OS"
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(NOT KTX_FEATURE_LOADTEST_APPS MATCHES OFF)
set(VCPKG_MANIFEST_FEATURES loadtests)
if (KTX_FEATURE_LOADTEST_APPS MATCHES OpenGL)
list(APPEND VCPKG_MANIFEST_FEATURES glloadtests)
endif()
if(CMAKE_SYSTEM_NAME STREQUAL "iOS")
# Explicitly set the triplet to avoid potential trouble.
# Automatic triplet selection in CI, which runs on x86_64, selects
# x64-ios, which is the simulator. Works locally on arm64 so
# presumably running on an x86_64 is the reason.
set(VCPKG_TARGET_TRIPLET arm64-ios)
endif()
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(APPLE_LOCKED_OS)
set(XCODE_PROVISIONING_PROFILE_SPECIFIER "" CACHE STRING "Xcode provisioning profile specifier")
endif()
# Deployment
# When changing the target you must also edit the triplet files in
# vcpkg-triplets to reflect the new target.
if(APPLE_MAC_OS)
set(CMAKE_OSX_DEPLOYMENT_TARGET "11.0" CACHE STRING "macOS Deployment Target")
elseif(CMAKE_SYSTEM_NAME STREQUAL "iOS" OR CMAKE_SYSTEM_NAME STREQUAL "tvOS")
set(CMAKE_OSX_DEPLOYMENT_TARGET "12.0" CACHE STRING "iOS/tvOS Deployment Target")
set(CMAKE_XCODE_ATTRIBUTE_ONLY_ACTIVE_ARCH NO)
elseif(CMAKE_SYSTEM_NAME STREQUAL "visionOS")
set(CMAKE_OSX_DEPLOYMENT_TARGET "1.0" CACHE STRING "visionOS Deployment Target")
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()
endif()
set(bitness 64)
if(NOT CMAKE_SIZEOF_VOID_P EQUAL 8 OR FORCE32)
set(bitness 32)
endif()
option( KTX_WERROR "Make all warnings in KTX code into errors." OFF)
# After most option settings so settings can be used to affect vcpkg.
project(KTX-Software
VERSION ${KTX_VERSION}
DESCRIPTION "Libraries and tools to create and read KTX image texture files."
)
include(GNUInstallDirs) # Must be after project.
include(CTest) # "
set_target_processor_type(CPU_ARCHITECTURE) # Must be after project.
if (CPU_ARCHITECTURE STREQUAL x86)
message(FATAL_ERROR "This project cannot be built for x86 cpu.")
endif()
CMAKE_DEPENDENT_OPTION( BASISU_SUPPORT_SSE
"Compile with SSE support so applications can choose to use it."
ON
"NOT CMAKE_OSX_ARCHITECTURES STREQUAL \"$(ARCHS_STANDARD)\"; CPU_ARCHITECTURE STREQUAL x86_64"
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) # Must be after project as needs language defined.
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
"${CMAKE_CURRENT_SOURCE_DIR}/external/basisu/opencl"
# FORCE to override *-NOTFOUND set by the failed find.
CACHE PATH "" FORCE
)
set(OpenCL_LIBRARY
"${CMAKE_CURRENT_SOURCE_DIR}/external/basisu/opencl/lib/OpenCL64.lib"
CACHE FILEPATH "" FORCE
)
set(OpenCL_INCLUDE_DIRS ${OpenCL_INCLUDE_DIR})
set(OpenCL_LIBRARIES ${OpenCL_LIBRARY})
endif()
# Windows Store Compatibility.
# In this case CMAKE_SYSTEM_NAME is not set until after project.
if (${CMAKE_SYSTEM_NAME} STREQUAL "WindowsStore")
# Disable OpenGL upload on Universal Windows Platform
set(KTX_FEATURE_GL_UPLOAD OFF)
endif()
# Uses IOS, so included after project to avoid modifying it.
if(KTX_GENERATE_VK_FILES)
include(cmake/mkvk.cmake)
endif()
# EMSCRIPTEN is not set until project so all these must be after.
if(APPLE_LOCKED_OS OR EMSCRIPTEN)
set( LIB_TYPE_DEFAULT OFF )
else()
set( LIB_TYPE_DEFAULT ON )
endif()
option(BUILD_SHARED_LIBS "Create shared libraries (static otherwise)." ${LIB_TYPE_DEFAULT} )
# Used to reset BUILD_SHARED_LIBS after forcing static builds
set(BUILD_SHARED_LIBS_RESET ${BUILD_SHARED_LIBS})
CMAKE_DEPENDENT_OPTION( KTX_FEATURE_TOOLS
"Create KTX tools"
ON
"NOT APPLE_LOCKED_OS;NOT ANDROID;NOT EMSCRIPTEN"
OFF
)
if(UNIX AND NOT APPLE AND NOT EMSCRIPTEN AND NOT ANDROID)
set(LINUX TRUE)
endif()
if(EMSCRIPTEN)
set( KTX_FEATURE_VK_UPLOAD OFF )
endif()
if(NOT BUILD_SHARED_LIBS)
set(LIB_TYPE STATIC)
else()
if(CMAKE_SYSTEM_NAME STREQUAL "iOS" OR EMSCRIPTEN)
message(SEND_ERROR "Library type cannot be shared for the current platform. Set BUILD_SHARED_LIBS to OFF!")
endif()
set(LIB_TYPE SHARED)
endif()
# Global compile & link options including optimization flags
if(MSVC)
add_compile_options( /W4;$<$<BOOL:${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$<SEMICOLON>-g,-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 "${CMAKE_CXX_COMPILER_ID} not yet supported.")
endif()
# To improve output determinism enable precise floating point operations globally
# This code was based on external/astc-encoder/Source/cmake_core.cmake
# For Visual Studio prior to 2022 (compiler < 19.30) /fp:strict
# For Visual Studio 2022 (compiler >= 19.30) /fp:precise
# For Visual Studio 2022 ClangCL has enabled contraction by default,
# which is the same as standard clang, so behaves differently to
# CL.exe. Use the -Xclang argument to access GNU-style switch to
# control contraction and force disable.
# On CMake 3.25 or older CXX_COMPILER_FRONTEND_VARIANT is not always set
if(CMAKE_CXX_COMPILER_FRONTEND_VARIANT STREQUAL "")
set(CMAKE_CXX_COMPILER_FRONTEND_VARIANT "${CMAKE_CXX_COMPILER_ID}")
endif()
#cmake_print_variables(
# CMAKE_CXX_COMPILER_ID
# CMAKE_CXX_COMPILER_VERSION
# CMAKE_CXX_COMPILER_FRONTEND_VARIANT
#)
# 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}>")
#add_custom_target(debug_isgnufe1 COMMAND ${CMAKE_COMMAND} -E echo "is_gnufe1_exp = $<STREQUAL:${CMAKE_CXX_COMPILER_FRONTEND_VARIANT},GNU>")
# 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>>")
add_compile_options(
$<$<AND:${is_msvccl},$<VERSION_LESS:$<CXX_COMPILER_VERSION>,19.30>>:/fp:strict>
$<$<AND:${is_msvccl},$<VERSION_GREATER_EQUAL:$<CXX_COMPILER_VERSION>,19.30>>:/fp:precise>
$<${is_clangcl}:/fp:precise>
$<$<AND:${is_clangcl},$<VERSION_GREATER_EQUAL:$<CXX_COMPILER_VERSION>,14.0.0>>:-Xclang$<SEMICOLON>-ffp-contract=off>
$<$<AND:${is_clang},$<VERSION_GREATER_EQUAL:$<CXX_COMPILER_VERSION>,10.0.0>>:-ffp-model=precise>
$<${is_gnu_fe}:-ffp-contract=off>
# Hide noise from clang and clangcl 20 warning the 2nd fp option changes
# one of the settings made the first.
$<$<AND:${is_clang},$<VERSION_GREATER_EQUAL:$<CXX_COMPILER_VERSION>,20.0.0>>:-Wno-overriding-option>
)
#add_custom_target(debug_gnufe_ffpcontract COMMAND ${CMAKE_COMMAND} -E echo "ffp_contract = $<${is_gnu_fe}:-ffp-contract=off>")
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
external/basisu/transcoder/basisu_containers.h
external/basisu/transcoder/basisu_containers_impl.h
external/basisu/transcoder/basisu_file_headers.h
external/basisu/transcoder/basisu_transcoder_internal.h
external/basisu/transcoder/basisu_transcoder_uastc.h
external/basisu/transcoder/basisu_transcoder.cpp
external/basisu/transcoder/basisu_transcoder.h
external/basisu/transcoder/basisu.h
external/basisu/zstd/zstd.c
lib/checkheader.c
external/dfdutils/createdfd.c
external/dfdutils/colourspaces.c
external/dfdutils/dfd.h
external/dfdutils/interpretdfd.c
external/dfdutils/printdfd.c
external/dfdutils/queries.c
external/dfdutils/vk2dfd.c
external/dfdutils/vk2dfd.inl
external/dfdutils/vulkan/vk_platform.h
external/dfdutils/vulkan/vulkan_core.h
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/texture_funcs.inl
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_check_variant.c
lib/vkformat_enum.h
lib/vkformat_str.c
lib/vkformat_typesize.c
)
if (KTX_FEATURE_ETC_UNPACK)
list(APPEND KTX_MAIN_SRC
external/etcdec/etcdec.cxx
)
endif()
set(BASISU_ENCODER_CXX_SRC
external/basisu/encoder/basisu_backend.cpp
external/basisu/encoder/basisu_backend.h
external/basisu/encoder/basisu_basis_file.cpp
external/basisu/encoder/basisu_basis_file.h
external/basisu/encoder/basisu_bc7enc.cpp
external/basisu/encoder/basisu_bc7enc.h
external/basisu/encoder/basisu_comp.cpp
external/basisu/encoder/basisu_comp.h
external/basisu/encoder/basisu_enc.cpp
external/basisu/encoder/basisu_enc.h
external/basisu/encoder/basisu_etc.cpp
external/basisu/encoder/basisu_etc.h
external/basisu/encoder/basisu_frontend.cpp
external/basisu/encoder/basisu_frontend.h
external/basisu/encoder/basisu_gpu_texture.cpp
external/basisu/encoder/basisu_gpu_texture.h
external/basisu/encoder/basisu_kernels_declares.h
external/basisu/encoder/basisu_kernels_imp.h
external/basisu/encoder/basisu_kernels_sse.cpp
external/basisu/encoder/basisu_miniz.h
external/basisu/encoder/basisu_opencl.cpp
external/basisu/encoder/basisu_opencl.h
external/basisu/encoder/basisu_pvrtc1_4.cpp
external/basisu/encoder/basisu_pvrtc1_4.h
external/basisu/encoder/basisu_resample_filters.cpp
external/basisu/encoder/basisu_resampler_filters.h
external/basisu/encoder/basisu_resampler.cpp
external/basisu/encoder/basisu_resampler.h
external/basisu/encoder/basisu_ssim.cpp
external/basisu/encoder/basisu_ssim.h
external/basisu/encoder/basisu_uastc_enc.cpp
external/basisu/encoder/basisu_uastc_enc.h
external/basisu/encoder/cppspmd_flow.h
external/basisu/encoder/cppspmd_math.h
external/basisu/encoder/cppspmd_math_declares.h
external/basisu/encoder/cppspmd_sse.h
external/basisu/encoder/cppspmd_type_aliases.h
)
if(KTX_FEATURE_GL_UPLOAD)
list(APPEND KTX_MAIN_SRC
lib/gl_funclist.inl
lib/gl_funcs.c
lib/gl_funcs.h
lib/glloader.c
)
endif()
if(APPLE_MAC_OS OR LINUX OR WIN32)
# By wrapping in generator expression we force multi configuration
# generators (like Visual Studio, Xcode or Ninja multi-config) to
# take the exact path and not change it.
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY $<1:${KTX_BUILD_DIR}/$<CONFIG>>)
if(APPLE_MAC_OS OR LINUX)
# Use 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. Signing happens at build time so the binary must not
# be altered during install. Although Linux code is not yet being
# signed, make it symmetrical with macOS.
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY $<1:${KTX_BUILD_DIR}/$<CONFIG>>)
set(CMAKE_BUILD_WITH_INSTALL_RPATH ON)
endif()
endif()
set(KTX_BASISU_INCLUDE_DIRS
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/external/basisu/transcoder>
)
# 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 ${PROJECT_VERSION_MAJOR}
XCODE_ATTRIBUTE_ENABLE_HARDENED_RUNTIME "YES"
)
if(APPLE_LOCKED_OS)
set_target_properties(${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(
${target}
PUBLIC
"$<$<CONFIG:Debug>:_DEBUG;DEBUG>"
PRIVATE
LIBKTX
SUPPORT_SOFTWARE_ETC_UNPACK=$<BOOL:${KTX_FEATURE_ETC_UNPACK}>
)
# C/C++ Standard
# Need c11 for Unicode string literals
target_compile_features(${target} PUBLIC c_std_11 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
${KTX_BASISU_INCLUDE_DIRS}
external
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/external/basisu/zstd>
$<INSTALL_INTERFACE:external/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\(dllexport\)>
# Code compiled with the versions shown defaults to a constexpr
# std::mutex constructor and requires a mscvp140.dll of at least
# version 14.40.33810.00 otherwise code creating a mutex
# crashes mysteriously. Since many JVM installations bundle
# their own version of the VC++ redistributables chances are
# high they will not have a modern enough version so JNI modules
# linked with libktx will crash when multiple threads are used,
# as they are in the BasisU and ASTC encoders.
#
# To avoid this set a define to prevent the compiler using
# constexpr mutex constructors. Remove this eventually after
# in-use JVM installations have at least this VC runtime. Remove
# also from ASTCENC_LIB_TARGET settings around line 1169.
$<$<AND:${is_msvccl},$<VERSION_GREATER_EQUAL:$<CXX_COMPILER_VERSION>,19.40.33811>>:_DISABLE_CONSTEXPR_MUTEX_CONSTRUCTOR>
$<$<AND:${is_clangcl},$<VERSION_GREATER_EQUAL:$<CXX_COMPILER_VERSION>,17.0.3>>:_DISABLE_CONSTEXPR_MUTEX_CONSTRUCTOR>
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(${target} PRIVATE
# To reduce size, don't support transcoding to formats not
# supported # by WebGL.
BASISD_SUPPORT_ATC=0
BASISD_SUPPORT_PVRTC2=0
# Don't support higher quality mode to avoid 64k table.
BASISD_SUPPORT_ASTC_HIGHER_OPAQUE_QUALITY=0
KTX_OMIT_VULKAN=1
)
target_link_options(${target} INTERFACE
# "SHELL:-s ASSERTIONS=2"
# "SHELL:-s SAFE_HEAP=1"
# "SHELL:-s STACK_OVERFLOW_CHECK=2"
"SHELL:-s ALLOW_MEMORY_GROWTH=1"
"SHELL:-s MALLOC=emmalloc"
"SHELL:-s FULL_ES3=1"
"SHELL:-s GL_ENABLE_GET_PROC_ADDRESS=1" # For Emscripten 3.1.51+
)
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}/external/dfdutils>
$<INSTALL_INTERFACE:external/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_codec.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}/external/basisu>
$<INSTALL_INTERFACE:external/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
>
)
if(EMSCRIPTEN)
target_link_options(
${target}
INTERFACE
# Default 64kb not enough for encode_uastc.
"SHELL:-s STACK_SIZE=96kb"
)
endif()
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.
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.
${BASISU_ENCODER_CXX_SRC}
PROPERTIES COMPILE_OPTIONS "-Wno-sign-compare;-Wno-unused-variable;-Wno-class-memaccess;-Wno-misleading-indentation;-Wno-extra;-Wno-deprecated-copy;-Wno-parentheses;-Wno-strict-aliasing"
)
set_source_files_properties(
external/basisu/transcoder/basisu_transcoder.cpp
PROPERTIES COMPILE_OPTIONS "-Wno-sign-compare;-Wno-unused-function;-Wno-unused-variable;-Wno-class-memaccess;-Wno-maybe-uninitialized"
)
if (${CMAKE_CXX_COMPILER_VERSION} VERSION_GREATER_EQUAL "11")
if (${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS "12" )
# Version 11 raises several stringop-overflow warnings in some
# very hard to decipher code. They appear to be bogus based on
# the facts that we have never seen a crash and version 12 no
# longer raises the warnings.
get_source_file_property(cur_options
external/basisu/encoder/basisu_comp.cpp
COMPILE_OPTIONS
)
set_source_files_properties(
external/basisu/encoder/basisu_comp.cpp
PROPERTIES COMPILE_OPTIONS "${cur_options};-Wno-stringop-overflow"
)
endif()
endif()
if (${CMAKE_CXX_COMPILER_VERSION} VERSION_GREATER_EQUAL "12.0")
# Version 12 newly raises this warning on basisu_uastc_enc.cpp.
# There seems no way for the index calculated by the code at
# line 326, where the error is raised, to be > the array length.
# Also we have never seen any crashes.
set_source_files_properties(
external/basisu/encoder/basisu_uastc_enc.cpp
PROPERTIES COMPILE_OPTIONS "-Wno-stringop-overflow"
)
endif()
if (${CMAKE_CXX_COMPILER_VERSION} VERSION_GREATER_EQUAL "14.0")
# Version 14 raises stringop-overflow on these files.
get_source_file_property(cur_options
external/basisu/encoder/basisu_comp.cpp
COMPILE_OPTIONS
)
set_source_files_properties(
external/basisu/transcoder/basisu_transcoder.cpp
PROPERTIES COMPILE_OPTIONS "${cur_options};-Wno-stringop-overflow"
)
get_source_file_property(cur_options
external/basisu/encoder/basisu_bc7enc.cpp
COMPILE_OPTIONS
)
set_source_files_properties(
external/basisu/encoder/basisu_bc7enc.cpp
PROPERTIES COMPILE_OPTIONS "${cur_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( external/basisu/encoder/basisu_kernels_sse.cpp
PROPERTIES COMPILE_OPTIONS "-Wno-unused-parameter;-Wno-deprecated-copy;-Wno-uninitialized-const-reference"
)
else()
set_source_files_properties( external/basisu/encoder/basisu_kernels_sse.cpp
PROPERTIES COMPILE_OPTIONS "-Wno-unused-parameter"
)
endif()
if (${clang_version} VERSION_GREATER_EQUAL "14.0")
set_source_files_properties(
${BASISU_ENCODER_CXX_SRC}
PROPERTIES COMPILE_OPTIONS "-Wno-sign-compare;-Wno-unused-variable;-Wno-unused-parameter;-Wno-deprecated-copy-with-user-provided-copy"
)
set_source_files_properties(
external/basisu/transcoder/basisu_transcoder.cpp
PROPERTIES COMPILE_OPTIONS "-Wno-sign-compare;-Wno-unused-function;-Wno-unused-variable"
)
set_source_files_properties(
external/basisu/zstd/zstd.c
PROPERTIES COMPILE_OPTIONS "-Wno-unused-function"
)
endif()
else()
message(FATAL_ERROR "${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
external/basisu/transcoder/basisu_transcoder.cpp
COMPILE_OPTIONS
)
get_source_file_property(zstd_options external/basisu/zstd/zstd.c COMPILE_OPTIONS)
if(EMSCRIPTEN)
set(
KTX_EM_COMMON_LINK_FLAGS
--bind
"SHELL:-s MODULARIZE=1"
"SHELL:-s EXPORTED_RUNTIME_METHODS=[\'GL\']"
"SHELL:-s GL_PREINITIALIZED_CONTEXT=1"
)
set(
KTX_EM_COMMON_KTX_LINK_FLAGS
--pre-js ${CMAKE_CURRENT_SOURCE_DIR}/interface/js_binding/class_compat.js
--extern-post-js ${CMAKE_CURRENT_SOURCE_DIR}/interface/js_binding/module_create_compat.js
${KTX_EM_COMMON_LINK_FLAGS}
)
set(
KTX_JS_COMMON_SOURCE
interface/js_binding/ktx_wrapper.cpp
interface/js_binding/class_compat.js
interface/js_binding/module_create_compat.js
)
add_executable( ktx_js
${KTX_JS_COMMON_SOURCE}
interface/js_binding/vk_format.inl
)
target_compile_definitions(ktx_js PUBLIC KTX_FEATURE_WRITE)
target_link_libraries( ktx_js ktx )
target_include_directories(
ktx_js
PRIVATE
${CMAKE_CURRENT_SOURCE_DIR}/other_include
${CMAKE_CURRENT_SOURCE_DIR}/lib
$<TARGET_PROPERTY:ktx,INTERFACE_INCLUDE_DIRECTORIES>
)
target_link_options(
ktx_js
PUBLIC
${KTX_EM_COMMON_KTX_LINK_FLAGS}
"SHELL:-s EXPORT_NAME=createKtxModule"
)