CMakeLists.txt

   1 # CMake build file list for OpenAL
   2
   3 cmake_minimum_required(VERSION 3.13)
   4 enable_testing()
   5
   6 if(APPLE)
   7     # The workaround for try_compile failing with code signing
   8     # since cmake-3.18.2, not required
   9     set(CMAKE_TRY_COMPILE_PLATFORM_VARIABLES
  10         ${CMAKE_TRY_COMPILE_PLATFORM_VARIABLES}
  11         "CMAKE_XCODE_ATTRIBUTE_CODE_SIGNING_REQUIRED"
  12         "CMAKE_XCODE_ATTRIBUTE_CODE_SIGNING_ALLOWED")
  13     set(CMAKE_XCODE_ATTRIBUTE_CODE_SIGNING_REQUIRED NO)
  14     set(CMAKE_XCODE_ATTRIBUTE_CODE_SIGNING_ALLOWED NO)
  15 endif()
  16
  17 if(CMAKE_SYSTEM_NAME STREQUAL "iOS")
  18     # Fix compile failure with armv7 deployment target >= 11.0, xcode clang
  19     # will report:
  20     # error: invalid iOS deployment version '--target=armv7-apple-ios13.6',
  21     # iOS 10 is the maximum deployment target for 32-bit targets
  22     # If CMAKE_OSX_DEPLOYMENT_TARGET is not defined, cmake will choose latest
  23     # deployment target
  24     if("${CMAKE_OSX_ARCHITECTURES}" MATCHES ".*armv7.*")
  25         if(NOT DEFINED CMAKE_OSX_DEPLOYMENT_TARGET
  26             OR NOT CMAKE_OSX_DEPLOYMENT_TARGET VERSION_LESS "11.0")
  27             message(STATUS "Forcing iOS deployment target to 10.0 for armv7")
  28             set(CMAKE_OSX_DEPLOYMENT_TARGET "10.0" CACHE STRING "Minimum OS X deployment version"
  29                 FORCE)
  30         endif()
  31     endif()
  32 elseif(CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
  33     set(ALSOFT_UWP TRUE)
  34 endif()
  35
  36 if(COMMAND CMAKE_POLICY)
  37     cmake_policy(SET CMP0003 NEW)
  38     cmake_policy(SET CMP0005 NEW)
  39     if(POLICY CMP0020)
  40         cmake_policy(SET CMP0020 NEW)
  41     endif(POLICY CMP0020)
  42     if(POLICY CMP0042)
  43         cmake_policy(SET CMP0042 NEW)
  44     endif(POLICY CMP0042)
  45     if(POLICY CMP0054)
  46         cmake_policy(SET CMP0054 NEW)
  47     endif(POLICY CMP0054)
  48     if(POLICY CMP0058)
  49         cmake_policy(SET CMP0058 NEW)
  50     endif(POLICY CMP0058)
  51     if(POLICY CMP0063)
  52         cmake_policy(SET CMP0063 NEW)
  53     endif(POLICY CMP0063)
  54     if(POLICY CMP0075)
  55         cmake_policy(SET CMP0075 NEW)
  56     endif(POLICY CMP0075)
  57     if(POLICY CMP0092)
  58         cmake_policy(SET CMP0092 NEW)
  59     endif(POLICY CMP0092)
  60     if(POLICY CMP0117)
  61         cmake_policy(SET CMP0117 NEW)
  62     endif(POLICY CMP0117)
  63 endif(COMMAND CMAKE_POLICY)
  64
  65 project(OpenAL)
  66
  67 if(NOT CMAKE_BUILD_TYPE)
  68     set(CMAKE_BUILD_TYPE RelWithDebInfo CACHE STRING
  69         "Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel."
  70         FORCE)
  71 endif()
  72 if(NOT CMAKE_DEBUG_POSTFIX)
  73     set(CMAKE_DEBUG_POSTFIX "" CACHE STRING
  74         "Library postfix for debug builds. Normally left blank."
  75         FORCE)
  76 endif()
  77
  78 set(DEFAULT_TARGET_PROPS
  79     # Require C++17.
  80     CXX_STANDARD 17
  81     CXX_STANDARD_REQUIRED TRUE
  82     # Prefer C11, but support C99 and earlier when possible.
  83     C_STANDARD 11)
  84
  85 set(CMAKE_MODULE_PATH "${OpenAL_SOURCE_DIR}/cmake")
  86
  87 include(CheckFunctionExists)
  88 include(CheckLibraryExists)
  89 include(CheckIncludeFile)
  90 include(CheckIncludeFiles)
  91 include(CheckSymbolExists)
  92 include(CheckCCompilerFlag)
  93 include(CheckCXXCompilerFlag)
  94 include(CheckCSourceCompiles)
  95 include(CheckCXXSourceCompiles)
  96 include(CheckStructHasMember)
  97 include(CMakePackageConfigHelpers)
  98 include(GNUInstallDirs)
  99
 100 find_package(PkgConfig)
 101 find_package(SDL2 QUIET)
 102
 103
 104 option(ALSOFT_DLOPEN  "Check for the dlopen API for loading optional libs"  ON)
 105
 106 option(ALSOFT_WERROR  "Treat compile warnings as errors"      OFF)
 107
 108 option(ALSOFT_UTILS "Build utility programs"  ON)
 109 option(ALSOFT_NO_CONFIG_UTIL "Disable building the alsoft-config utility" OFF)
 110
 111 option(ALSOFT_EXAMPLES  "Build example programs"  ON)
 112 option(ALSOFT_TESTS "Build test programs"  OFF)
 113
 114 option(ALSOFT_INSTALL "Install main library" ON)
 115 option(ALSOFT_INSTALL_CONFIG "Install alsoft.conf sample configuration file" ON)
 116 option(ALSOFT_INSTALL_HRTF_DATA "Install HRTF data files" ON)
 117 option(ALSOFT_INSTALL_AMBDEC_PRESETS "Install AmbDec preset files" ON)
 118 option(ALSOFT_INSTALL_EXAMPLES "Install example programs (alplay, alstream, ...)" ON)
 119 option(ALSOFT_INSTALL_UTILS "Install utility programs (openal-info, alsoft-config, ...)" ON)
 120 option(ALSOFT_UPDATE_BUILD_VERSION "Update git build version info" ON)
 121
 122 option(ALSOFT_EAX "Enable legacy EAX extensions" ${WIN32})
 123
 124 option(ALSOFT_SEARCH_INSTALL_DATADIR "Search the installation data directory" OFF)
 125 if(ALSOFT_SEARCH_INSTALL_DATADIR)
 126     set(ALSOFT_INSTALL_DATADIR ${CMAKE_INSTALL_FULL_DATADIR})
 127 endif()
 128
 129 if(DEFINED SHARE_INSTALL_DIR)
 130     message(WARNING "SHARE_INSTALL_DIR is deprecated.  Use the variables provided by the GNUInstallDirs module instead")
 131     set(CMAKE_INSTALL_DATADIR "${SHARE_INSTALL_DIR}")
 132 endif()
 133
 134 if(DEFINED LIB_SUFFIX)
 135     message(WARNING "LIB_SUFFIX is deprecated.  Use the variables provided by the GNUInstallDirs module instead")
 136 endif()
 137 if(DEFINED ALSOFT_CONFIG)
 138     message(WARNING "ALSOFT_CONFIG is deprecated. Use ALSOFT_INSTALL_CONFIG instead")
 139 endif()
 140 if(DEFINED ALSOFT_HRTF_DEFS)
 141     message(WARNING "ALSOFT_HRTF_DEFS is deprecated. Use ALSOFT_INSTALL_HRTF_DATA instead")
 142 endif()
 143 if(DEFINED ALSOFT_AMBDEC_PRESETS)
 144     message(WARNING "ALSOFT_AMBDEC_PRESETS is deprecated. Use ALSOFT_INSTALL_AMBDEC_PRESETS instead")
 145 endif()
 146
 147
 148 set(CPP_DEFS ) # C pre-processor, not C++
 149 set(INC_PATHS )
 150 set(C_FLAGS )
 151 set(LINKER_FLAGS )
 152 set(LINKER_FLAGS_DEBUG )
 153 set(LINKER_FLAGS_RELEASE )
 154 set(EXTRA_LIBS )
 155
 156 if(WIN32)
 157     set(CPP_DEFS ${CPP_DEFS} _WIN32 NOMINMAX)
 158     if(MINGW)
 159         set(CPP_DEFS ${CPP_DEFS} __USE_MINGW_ANSI_STDIO)
 160     endif()
 161
 162     option(ALSOFT_BUILD_ROUTER  "Build the router (EXPERIMENTAL; creates OpenAL32.dll and soft_oal.dll)"  OFF)
 163     if(MINGW)
 164         option(ALSOFT_BUILD_IMPORT_LIB "Build an import .lib using dlltool (requires sed)" ON)
 165     endif()
 166 elseif(APPLE)
 167     option(ALSOFT_OSX_FRAMEWORK "Build as macOS framework" OFF)
 168 endif()
 169
 170
 171 # QNX's gcc do not uses /usr/include and /usr/lib paths by default
 172 if("${CMAKE_C_PLATFORM_ID}" STREQUAL "QNX")
 173     set(INC_PATHS ${INC_PATHS} /usr/include)
 174     set(LINKER_FLAGS ${LINKER_FLAGS} -L/usr/lib)
 175 endif()
 176
 177 # When the library is built for static linking, apps should define
 178 # AL_LIBTYPE_STATIC when including the AL headers.
 179 if(NOT LIBTYPE)
 180     set(LIBTYPE SHARED)
 181 endif()
 182
 183 set(LIB_MAJOR_VERSION "1")
 184 set(LIB_MINOR_VERSION "23")
 185 set(LIB_REVISION "1")
 186 set(LIB_VERSION "${LIB_MAJOR_VERSION}.${LIB_MINOR_VERSION}.${LIB_REVISION}")
 187 set(LIB_VERSION_NUM ${LIB_MAJOR_VERSION},${LIB_MINOR_VERSION},${LIB_REVISION},0)
 188
 189 set(EXPORT_DECL "")
 190
 191
 192 # Some systems erroneously require the __STDC_FORMAT_MACROS macro to be defined
 193 # to get the fixed-width integer type formatter macros.
 194 check_cxx_source_compiles("#include <cinttypes>
 195 #include <cstdio>
 196 int main()
 197 {
 198     int64_t i64{};
 199     std::printf(\"%\" PRId64, i64);
 200 }"
 201 HAVE_STDC_FORMAT_MACROS)
 202 if(NOT HAVE_STDC_FORMAT_MACROS)
 203     set(CPP_DEFS ${CPP_DEFS} __STDC_FORMAT_MACROS)
 204 endif()
 205
 206 # Some systems may need libatomic for atomic functions to work
 207 set(OLD_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
 208 set(CMAKE_REQUIRED_LIBRARIES ${OLD_REQUIRED_LIBRARIES} atomic)
 209 check_cxx_source_compiles("#include <atomic>
 210 std::atomic<int> foo{0};
 211 int main() { return foo.fetch_add(2); }"
 212 HAVE_LIBATOMIC)
 213 if(NOT HAVE_LIBATOMIC)
 214     set(CMAKE_REQUIRED_LIBRARIES "${OLD_REQUIRED_LIBRARIES}")
 215 else()
 216     set(EXTRA_LIBS atomic ${EXTRA_LIBS})
 217 endif()
 218 unset(OLD_REQUIRED_LIBRARIES)
 219
 220 if(ANDROID)
 221     # Include liblog for Android logging
 222     check_library_exists(log __android_log_print "" HAVE_LIBLOG)
 223     if(HAVE_LIBLOG)
 224         set(EXTRA_LIBS log ${EXTRA_LIBS})
 225         set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} log)
 226     endif()
 227 endif()
 228
 229 if(MSVC)
 230     set(CPP_DEFS ${CPP_DEFS} _CRT_SECURE_NO_WARNINGS)
 231     check_cxx_compiler_flag(/permissive- HAVE_PERMISSIVE_SWITCH)
 232     if(HAVE_PERMISSIVE_SWITCH)
 233         set(C_FLAGS ${C_FLAGS} $<$<COMPILE_LANGUAGE:CXX>:/permissive->)
 234     endif()
 235     set(C_FLAGS ${C_FLAGS} /W4 /w14640 /wd4065 /wd4127 /wd4268 /wd4324 /wd5030 /wd5051)
 236
 237     if(NOT DXSDK_DIR)
 238         string(REGEX REPLACE "\\\\" "/" DXSDK_DIR "$ENV{DXSDK_DIR}")
 239     else()
 240         string(REGEX REPLACE "\\\\" "/" DXSDK_DIR "${DXSDK_DIR}")
 241     endif()
 242     if(DXSDK_DIR)
 243         message(STATUS "Using DirectX SDK directory: ${DXSDK_DIR}")
 244     endif()
 245
 246     option(FORCE_STATIC_VCRT "Force /MT for static VC runtimes" OFF)
 247     if(FORCE_STATIC_VCRT)
 248         foreach(flag_var
 249                 CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
 250                 CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
 251                 CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
 252                 CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
 253             if(${flag_var} MATCHES "/MD")
 254                 string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
 255             endif()
 256         endforeach(flag_var)
 257     endif()
 258 else()
 259     set(C_FLAGS ${C_FLAGS} -Winline -Wunused -Wall -Wextra -Wshadow -Wconversion -Wcast-align
 260         -Wpedantic
 261         $<$<COMPILE_LANGUAGE:CXX>:-Wold-style-cast -Wnon-virtual-dtor -Woverloaded-virtual>)
 262
 263     check_cxx_compiler_flag(-Wno-c++20-attribute-extensions HAVE_WNO_CXX20_ATTR_EXT)
 264     if(HAVE_WNO_CXX20_ATTR_EXT)
 265         set(C_FLAGS ${C_FLAGS} $<$<COMPILE_LANGUAGE:CXX>:-Wno-c++20-attribute-extensions>)
 266     else()
 267         check_cxx_compiler_flag(-Wno-c++20-extensions HAVE_WNO_CXX20_EXT)
 268         if(HAVE_WNO_CXX20_EXT)
 269             set(C_FLAGS ${C_FLAGS} $<$<COMPILE_LANGUAGE:CXX>:-Wno-c++20-extensions>)
 270         endif()
 271     endif()
 272
 273     check_cxx_compiler_flag(-Wno-interference-size HAVE_WNO_INTERFERENCE_SIZE)
 274     if(HAVE_WNO_INTERFERENCE_SIZE)
 275         set(C_FLAGS ${C_FLAGS} $<$<COMPILE_LANGUAGE:CXX>:-Wno-interference-size>)
 276     endif()
 277
 278     if(ALSOFT_WERROR)
 279         set(C_FLAGS ${C_FLAGS} -Werror)
 280     endif()
 281
 282     # We want RelWithDebInfo to actually include debug stuff (define _DEBUG
 283     # instead of NDEBUG)
 284     foreach(flag_var  CMAKE_C_FLAGS_RELWITHDEBINFO CMAKE_CXX_FLAGS_RELWITHDEBINFO)
 285         if(${flag_var} MATCHES "-DNDEBUG")
 286             string(REGEX REPLACE "-DNDEBUG" "-D_DEBUG" ${flag_var} "${${flag_var}}")
 287         endif()
 288     endforeach()
 289
 290     check_c_compiler_flag(-fno-math-errno HAVE_FNO_MATH_ERRNO)
 291     if(HAVE_FNO_MATH_ERRNO)
 292         set(C_FLAGS ${C_FLAGS} -fno-math-errno)
 293     endif()
 294
 295     option(ALSOFT_STATIC_LIBGCC "Force -static-libgcc for static GCC runtimes" OFF)
 296     if(ALSOFT_STATIC_LIBGCC)
 297         set(OLD_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
 298         set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} -static-libgcc)
 299         check_cxx_source_compiles("int main() { }" HAVE_STATIC_LIBGCC_SWITCH)
 300         set(CMAKE_REQUIRED_LIBRARIES ${OLD_REQUIRED_LIBRARIES})
 301         unset(OLD_REQUIRED_LIBRARIES)
 302
 303         if(NOT HAVE_STATIC_LIBGCC_SWITCH)
 304             message(FATAL_ERROR "Cannot static link libgcc")
 305         endif()
 306         set(LINKER_FLAGS ${LINKER_FLAGS} -static-libgcc)
 307     endif()
 308
 309     option(ALSOFT_STATIC_STDCXX "Static link libstdc++" OFF)
 310     if(ALSOFT_STATIC_STDCXX)
 311         set(OLD_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
 312         set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} "-static-libstdc++")
 313         check_cxx_source_compiles("int main() { }" HAVE_STATIC_LIBSTDCXX_SWITCH)
 314         set(CMAKE_REQUIRED_LIBRARIES ${OLD_REQUIRED_LIBRARIES})
 315         unset(OLD_REQUIRED_LIBRARIES)
 316
 317         if(NOT HAVE_STATIC_LIBSTDCXX_SWITCH)
 318             message(FATAL_ERROR "Cannot static link libstdc++")
 319         endif()
 320         set(LINKER_FLAGS ${LINKER_FLAGS} "-static-libstdc++")
 321     endif()
 322
 323     if(WIN32)
 324         option(ALSOFT_STATIC_WINPTHREAD "Static link libwinpthread" OFF)
 325         if(ALSOFT_STATIC_WINPTHREAD)
 326             set(OLD_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
 327             set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} "-Wl,--push-state,-Bstatic,-lstdc++,-lwinpthread,--pop-state")
 328             check_cxx_source_compiles("int main() { }" HAVE_STATIC_LIBWINPTHREAD_SWITCH)
 329             set(CMAKE_REQUIRED_LIBRARIES ${OLD_REQUIRED_LIBRARIES})
 330             unset(OLD_REQUIRED_LIBRARIES)
 331
 332             if(NOT HAVE_STATIC_LIBWINPTHREAD_SWITCH)
 333                 message(FATAL_ERROR "Cannot static link libwinpthread")
 334             endif()
 335             set(LINKER_FLAGS ${LINKER_FLAGS} "-Wl,--push-state,-Bstatic,-lstdc++,-lwinpthread,--pop-state")
 336         endif()
 337     endif()
 338 endif()
 339
 340 # Set visibility/export options if available
 341 if(NOT LIBTYPE STREQUAL "STATIC")
 342     if(WIN32)
 343         set(EXPORT_DECL "__declspec(dllexport)")
 344     else()
 345         set(OLD_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
 346         # Yes GCC, really don't accept visibility modes you don't support
 347         set(CMAKE_REQUIRED_FLAGS "${OLD_REQUIRED_FLAGS} -Wattributes -Werror")
 348
 349         check_c_source_compiles("int foo() __attribute__((visibility(\"protected\")));
 350                                 int main() {return 0;}" HAVE_GCC_PROTECTED_VISIBILITY)
 351         if(HAVE_GCC_PROTECTED_VISIBILITY)
 352             set(EXPORT_DECL "__attribute__((visibility(\"protected\")))")
 353         else()
 354             check_c_source_compiles("int foo() __attribute__((visibility(\"default\")));
 355                                     int main() {return 0;}" HAVE_GCC_DEFAULT_VISIBILITY)
 356             if(HAVE_GCC_DEFAULT_VISIBILITY)
 357                 set(EXPORT_DECL "__attribute__((visibility(\"default\")))")
 358             endif()
 359         endif()
 360         if(HAVE_GCC_PROTECTED_VISIBILITY OR HAVE_GCC_DEFAULT_VISIBILITY)
 361             set(CMAKE_C_VISIBILITY_PRESET hidden)
 362             set(CMAKE_CXX_VISIBILITY_PRESET hidden)
 363         endif()
 364
 365         set(CMAKE_REQUIRED_FLAGS "${OLD_REQUIRED_FLAGS}")
 366     endif()
 367 endif()
 368
 369
 370 set(SSE2_SWITCH "")
 371
 372 if(NOT MSVC)
 373     set(OLD_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
 374     # Yes GCC, really don't accept command line options you don't support
 375     set(CMAKE_REQUIRED_FLAGS "${OLD_REQUIRED_FLAGS} -Werror")
 376     check_c_compiler_flag(-msse2 HAVE_MSSE2_SWITCH)
 377     if(HAVE_MSSE2_SWITCH)
 378         set(SSE2_SWITCH "-msse2")
 379     endif()
 380     set(CMAKE_REQUIRED_FLAGS ${OLD_REQUIRED_FLAGS})
 381     unset(OLD_REQUIRED_FLAGS)
 382 endif()
 383
 384 check_include_file(xmmintrin.h HAVE_XMMINTRIN_H)
 385 check_include_file(emmintrin.h HAVE_EMMINTRIN_H)
 386 check_include_file(pmmintrin.h HAVE_PMMINTRIN_H)
 387 check_include_file(smmintrin.h HAVE_SMMINTRIN_H)
 388 check_include_file(arm_neon.h HAVE_ARM_NEON_H)
 389
 390 set(HAVE_SSE        0)
 391 set(HAVE_SSE2       0)
 392 set(HAVE_SSE3       0)
 393 set(HAVE_SSE4_1     0)
 394 set(HAVE_NEON       0)
 395
 396 # Check for SSE support
 397 option(ALSOFT_CPUEXT_SSE "Enable SSE support" ON)
 398 option(ALSOFT_REQUIRE_SSE "Require SSE support" OFF)
 399 if(ALSOFT_CPUEXT_SSE AND HAVE_XMMINTRIN_H)
 400     set(HAVE_SSE 1)
 401 endif()
 402 if(ALSOFT_REQUIRE_SSE AND NOT HAVE_SSE)
 403     message(FATAL_ERROR "Failed to enable required SSE CPU extensions")
 404 endif()
 405
 406 option(ALSOFT_CPUEXT_SSE2 "Enable SSE2 support" ON)
 407 option(ALSOFT_REQUIRE_SSE2 "Require SSE2 support" OFF)
 408 if(ALSOFT_CPUEXT_SSE2 AND HAVE_SSE AND HAVE_EMMINTRIN_H)
 409     set(HAVE_SSE2 1)
 410 endif()
 411 if(ALSOFT_REQUIRE_SSE2 AND NOT HAVE_SSE2)
 412     message(FATAL_ERROR "Failed to enable required SSE2 CPU extensions")
 413 endif()
 414
 415 option(ALSOFT_CPUEXT_SSE3 "Enable SSE3 support" ON)
 416 option(ALSOFT_REQUIRE_SSE3 "Require SSE3 support" OFF)
 417 if(ALSOFT_CPUEXT_SSE3 AND HAVE_SSE2 AND HAVE_PMMINTRIN_H)
 418     set(HAVE_SSE3 1)
 419 endif()
 420 if(ALSOFT_REQUIRE_SSE3 AND NOT HAVE_SSE3)
 421     message(FATAL_ERROR "Failed to enable required SSE3 CPU extensions")
 422 endif()
 423
 424 option(ALSOFT_CPUEXT_SSE4_1 "Enable SSE4.1 support" ON)
 425 option(ALSOFT_REQUIRE_SSE4_1 "Require SSE4.1 support" OFF)
 426 if(ALSOFT_CPUEXT_SSE4_1 AND HAVE_SSE3 AND HAVE_SMMINTRIN_H)
 427     set(HAVE_SSE4_1 1)
 428 endif()
 429 if(ALSOFT_REQUIRE_SSE4_1 AND NOT HAVE_SSE4_1)
 430     message(FATAL_ERROR "Failed to enable required SSE4.1 CPU extensions")
 431 endif()
 432
 433 # Check for ARM Neon support
 434 option(ALSOFT_CPUEXT_NEON "Enable ARM NEON support" ON)
 435 option(ALSOFT_REQUIRE_NEON "Require ARM NEON support" OFF)
 436 if(ALSOFT_CPUEXT_NEON AND HAVE_ARM_NEON_H)
 437     check_c_source_compiles("#include <arm_neon.h>
 438         int main()
 439         {
 440             int32x4_t ret4 = vdupq_n_s32(0);
 441             return vgetq_lane_s32(ret4, 0);
 442         }" HAVE_NEON_INTRINSICS)
 443     if(HAVE_NEON_INTRINSICS)
 444         set(HAVE_NEON 1)
 445     endif()
 446 endif()
 447 if(ALSOFT_REQUIRE_NEON AND NOT HAVE_NEON)
 448     message(FATAL_ERROR "Failed to enable required ARM NEON CPU extensions")
 449 endif()
 450
 451
 452 set(ALSOFT_FORCE_ALIGN )
 453 set(SSE_FLAGS )
 454 set(FPMATH_SET "0")
 455 if(CMAKE_SIZEOF_VOID_P MATCHES "4" AND HAVE_SSE2)
 456     option(ALSOFT_ENABLE_SSE2_CODEGEN "Enable SSE2 code generation instead of x87 for 32-bit targets." TRUE)
 457     if(ALSOFT_ENABLE_SSE2_CODEGEN)
 458         if(MSVC)
 459             check_c_compiler_flag("/arch:SSE2" HAVE_ARCH_SSE2)
 460             if(HAVE_ARCH_SSE2)
 461                 set(SSE_FLAGS ${SSE_FLAGS} "/arch:SSE2")
 462                 set(C_FLAGS ${C_FLAGS} ${SSE_FLAGS})
 463                 set(FPMATH_SET 2)
 464             endif()
 465         elseif(SSE2_SWITCH)
 466             check_c_compiler_flag("${SSE2_SWITCH} -mfpmath=sse" HAVE_MFPMATH_SSE_2)
 467             if(HAVE_MFPMATH_SSE_2)
 468                 set(SSE_FLAGS ${SSE_FLAGS} ${SSE2_SWITCH} -mfpmath=sse)
 469                 set(C_FLAGS ${C_FLAGS} ${SSE_FLAGS})
 470                 set(FPMATH_SET 2)
 471             endif()
 472             # SSE depends on a 16-byte aligned stack, and by default, GCC
 473             # assumes the stack is suitably aligned. Older Linux code or other
 474             # OSs don't guarantee this on 32-bit, so externally-callable
 475             # functions need to ensure an aligned stack.
 476             set(EXPORT_DECL "${EXPORT_DECL}__attribute__((force_align_arg_pointer))")
 477             set(ALSOFT_FORCE_ALIGN "__attribute__((force_align_arg_pointer))")
 478         endif()
 479     endif()
 480 endif()
 481
 482 if(HAVE_SSE2)
 483     set(OLD_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
 484     foreach(flag_var ${SSE_FLAGS})
 485         set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${flag_var}")
 486     endforeach()
 487
 488     check_c_source_compiles("#include <emmintrin.h>
 489         int main() {_mm_pause(); return 0;}" HAVE_SSE_INTRINSICS)
 490
 491     set(CMAKE_REQUIRED_FLAGS ${OLD_REQUIRED_FLAGS})
 492 endif()
 493
 494
 495 check_include_file(cpuid.h HAVE_CPUID_H)
 496 check_include_file(intrin.h HAVE_INTRIN_H)
 497 check_include_file(guiddef.h HAVE_GUIDDEF_H)
 498
 499 # Some systems need libm for some math functions to work
 500 set(MATH_LIB )
 501 check_library_exists(m pow "" HAVE_LIBM)
 502 if(HAVE_LIBM)
 503     set(MATH_LIB ${MATH_LIB} m)
 504     set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} m)
 505 endif()
 506
 507 # Some systems need to link with -lrt for clock_gettime as used by the common
 508 # eaxmple functions.
 509 set(RT_LIB )
 510 check_library_exists(rt clock_gettime "" HAVE_LIBRT)
 511 if(HAVE_LIBRT)
 512     set(RT_LIB rt)
 513 endif()
 514
 515 # Check for the dlopen API (for dynamically loading backend libs)
 516 if(ALSOFT_DLOPEN)
 517     check_include_file(dlfcn.h HAVE_DLFCN_H)
 518     check_library_exists(dl dlopen "" HAVE_LIBDL)
 519     if(HAVE_LIBDL)
 520         set(EXTRA_LIBS dl ${EXTRA_LIBS})
 521         set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} dl)
 522     endif()
 523 endif()
 524
 525 # Check for a cpuid intrinsic
 526 if(HAVE_CPUID_H)
 527     check_c_source_compiles("#include <cpuid.h>
 528         int main()
 529         {
 530             unsigned int eax, ebx, ecx, edx;
 531             return __get_cpuid(0, &eax, &ebx, &ecx, &edx);
 532         }" HAVE_GCC_GET_CPUID)
 533 endif()
 534 if(HAVE_INTRIN_H)
 535     check_c_source_compiles("#include <intrin.h>
 536         int main()
 537         {
 538             int regs[4];
 539             __cpuid(regs, 0);
 540             return regs[0];
 541         }" HAVE_CPUID_INTRINSIC)
 542 endif()
 543
 544 check_symbol_exists(proc_pidpath     libproc.h HAVE_PROC_PIDPATH)
 545
 546 if(NOT WIN32)
 547     # We need pthreads outside of Windows, for semaphores. It's also used to
 548     # set the priority and name of threads, when possible.
 549     check_include_file(pthread.h HAVE_PTHREAD_H)
 550     if(NOT HAVE_PTHREAD_H)
 551         message(FATAL_ERROR "PThreads is required for non-Windows builds!")
 552     endif()
 553
 554     check_c_compiler_flag(-pthread HAVE_PTHREAD)
 555     if(HAVE_PTHREAD)
 556         set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -pthread")
 557         set(C_FLAGS ${C_FLAGS} -pthread)
 558         set(LINKER_FLAGS ${LINKER_FLAGS} -pthread)
 559     endif()
 560
 561     check_symbol_exists(pthread_setschedparam pthread.h HAVE_PTHREAD_SETSCHEDPARAM)
 562
 563     # Some systems need pthread_np.h to get pthread_setname_np
 564     check_include_files("pthread.h;pthread_np.h" HAVE_PTHREAD_NP_H)
 565     if(HAVE_PTHREAD_NP_H)
 566         check_symbol_exists(pthread_setname_np "pthread.h;pthread_np.h" HAVE_PTHREAD_SETNAME_NP)
 567         if(NOT HAVE_PTHREAD_SETNAME_NP)
 568             check_symbol_exists(pthread_set_name_np "pthread.h;pthread_np.h" HAVE_PTHREAD_SET_NAME_NP)
 569         endif()
 570     else()
 571         check_symbol_exists(pthread_setname_np pthread.h HAVE_PTHREAD_SETNAME_NP)
 572         if(NOT HAVE_PTHREAD_SETNAME_NP)
 573             check_symbol_exists(pthread_set_name_np pthread.h HAVE_PTHREAD_SET_NAME_NP)
 574         endif()
 575     endif()
 576 endif()
 577
 578
 579 # Common sources used by both the OpenAL implementation library, the OpenAL
 580 # router, and certain tools and examples.
 581 set(COMMON_OBJS
 582     common/alassert.cpp
 583     common/alassert.h
 584     common/albit.h
 585     common/alcomplex.cpp
 586     common/alcomplex.h
 587     common/almalloc.h
 588     common/alnumbers.h
 589     common/alnumeric.h
 590     common/alsem.cpp
 591     common/alsem.h
 592     common/alspan.h
 593     common/alstring.cpp
 594     common/alstring.h
 595     common/althrd_setname.cpp
 596     common/althrd_setname.h
 597     common/althreads.h
 598     common/altraits.h
 599     common/atomic.h
 600     common/comptr.h
 601     common/dynload.cpp
 602     common/dynload.h
 603     common/flexarray.h
 604     common/intrusive_ptr.h
 605     common/opthelpers.h
 606     common/pffft.cpp
 607     common/pffft.h
 608     common/phase_shifter.h
 609     common/polyphase_resampler.cpp
 610     common/polyphase_resampler.h
 611     common/pragmadefs.h
 612     common/ringbuffer.cpp
 613     common/ringbuffer.h
 614     common/strutils.cpp
 615     common/strutils.h
 616     common/vecmat.h
 617     common/vector.h)
 618
 619 # Core library routines
 620 set(CORE_OBJS
 621     core/ambdec.cpp
 622     core/ambdec.h
 623     core/ambidefs.cpp
 624     core/ambidefs.h
 625     core/async_event.h
 626     core/bformatdec.cpp
 627     core/bformatdec.h
 628     core/bs2b.cpp
 629     core/bs2b.h
 630     core/bsinc_defs.h
 631     core/bsinc_tables.cpp
 632     core/bsinc_tables.h
 633     core/bufferline.h
 634     core/buffer_storage.cpp
 635     core/buffer_storage.h
 636     core/context.cpp
 637     core/context.h
 638     core/converter.cpp
 639     core/converter.h
 640     core/cpu_caps.cpp
 641     core/cpu_caps.h
 642     core/cubic_defs.h
 643     core/cubic_tables.cpp
 644     core/cubic_tables.h
 645     core/devformat.cpp
 646     core/devformat.h
 647     core/device.cpp
 648     core/device.h
 649     core/effects/base.h
 650     core/effectslot.cpp
 651     core/effectslot.h
 652     core/except.cpp
 653     core/except.h
 654     core/filters/biquad.h
 655     core/filters/biquad.cpp
 656     core/filters/nfc.cpp
 657     core/filters/nfc.h
 658     core/filters/splitter.cpp
 659     core/filters/splitter.h
 660     core/fmt_traits.cpp
 661     core/fmt_traits.h
 662     core/fpu_ctrl.cpp
 663     core/fpu_ctrl.h
 664     core/front_stablizer.h
 665     core/helpers.cpp
 666     core/helpers.h
 667     core/hrtf.cpp
 668     core/hrtf.h
 669     core/logging.cpp
 670     core/logging.h
 671     core/mastering.cpp
 672     core/mastering.h
 673     core/mixer.cpp
 674     core/mixer.h
 675     core/resampler_limits.h
 676     core/storage_formats.cpp
 677     core/storage_formats.h
 678     core/uhjfilter.cpp
 679     core/uhjfilter.h
 680     core/uiddefs.cpp
 681     core/voice.cpp
 682     core/voice.h
 683     core/voice_change.h)
 684
 685 set(HAVE_RTKIT 0)
 686 if(NOT WIN32)
 687     option(ALSOFT_RTKIT "Enable RTKit support" ON)
 688     option(ALSOFT_REQUIRE_RTKIT "Require RTKit/D-Bus support" FALSE)
 689     if(ALSOFT_RTKIT)
 690         find_package(DBus1 QUIET)
 691         if(NOT DBus1_FOUND AND PkgConfig_FOUND)
 692             pkg_check_modules(DBUS dbus-1)
 693         endif()
 694         if(DBus1_FOUND OR DBUS_FOUND)
 695             set(HAVE_RTKIT 1)
 696             set(CORE_OBJS ${CORE_OBJS} core/dbus_wrap.cpp core/dbus_wrap.h
 697                 core/rtkit.cpp core/rtkit.h)
 698             if(NOT DBus1_FOUND)
 699                 set(INC_PATHS ${INC_PATHS} ${DBUS_INCLUDE_DIRS})
 700                 set(CPP_DEFS ${CPP_DEFS} ${DBUS_CFLAGS_OTHER})
 701                 if(NOT HAVE_DLFCN_H)
 702                     set(EXTRA_LIBS ${EXTRA_LIBS} ${DBUS_LINK_LIBRARIES})
 703                 endif()
 704             elseif(HAVE_DLFCN_H)
 705                 set(INC_PATHS ${INC_PATHS} ${DBus1_INCLUDE_DIRS})
 706                 set(CPP_DEFS ${CPP_DEFS} ${DBus1_DEFINITIONS})
 707             else()
 708                 set(EXTRA_LIBS ${EXTRA_LIBS} ${DBus1_LIBRARIES})
 709             endif()
 710         endif()
 711     else()
 712         set(MISSING_VARS "")
 713         if(NOT DBus1_INCLUDE_DIRS)
 714             set(MISSING_VARS "${MISSING_VARS} DBus1_INCLUDE_DIRS")
 715         endif()
 716         if(NOT DBus1_LIBRARIES)
 717             set(MISSING_VARS "${MISSING_VARS} DBus1_LIBRARIES")
 718         endif()
 719         message(STATUS "Could NOT find DBus1 (missing:${MISSING_VARS})")
 720         unset(MISSING_VARS)
 721     endif()
 722 endif()
 723 if(ALSOFT_REQUIRE_RTKIT AND NOT HAVE_RTKIT)
 724     message(FATAL_ERROR "Failed to enable required RTKit support")
 725 endif()
 726
 727 # Default mixers, always available
 728 set(CORE_OBJS ${CORE_OBJS}
 729     core/mixer/defs.h
 730     core/mixer/hrtfbase.h
 731     core/mixer/hrtfdefs.h
 732     core/mixer/mixer_c.cpp)
 733
 734 # AL and related routines
 735 set(OPENAL_OBJS
 736     al/auxeffectslot.cpp
 737     al/auxeffectslot.h
 738     al/buffer.cpp
 739     al/buffer.h
 740     al/debug.cpp
 741     al/debug.h
 742     al/direct_defs.h
 743     al/effect.cpp
 744     al/effect.h
 745     al/effects/autowah.cpp
 746     al/effects/chorus.cpp
 747     al/effects/compressor.cpp
 748     al/effects/convolution.cpp
 749     al/effects/dedicated.cpp
 750     al/effects/distortion.cpp
 751     al/effects/echo.cpp
 752     al/effects/effects.cpp
 753     al/effects/effects.h
 754     al/effects/equalizer.cpp
 755     al/effects/fshifter.cpp
 756     al/effects/modulator.cpp
 757     al/effects/null.cpp
 758     al/effects/pshifter.cpp
 759     al/effects/reverb.cpp
 760     al/effects/vmorpher.cpp
 761     al/error.cpp
 762     al/error.h
 763     al/event.cpp
 764     al/event.h
 765     al/extension.cpp
 766     al/filter.cpp
 767     al/filter.h
 768     al/listener.cpp
 769     al/listener.h
 770     al/source.cpp
 771     al/source.h
 772     al/state.cpp)
 773
 774 # ALC and related routines
 775 set(ALC_OBJS
 776     alc/alc.cpp
 777     alc/alu.cpp
 778     alc/alu.h
 779     alc/alconfig.cpp
 780     alc/alconfig.h
 781     alc/context.cpp
 782     alc/context.h
 783     alc/device.cpp
 784     alc/device.h
 785     alc/effects/base.h
 786     alc/effects/autowah.cpp
 787     alc/effects/chorus.cpp
 788     alc/effects/compressor.cpp
 789     alc/effects/convolution.cpp
 790     alc/effects/dedicated.cpp
 791     alc/effects/distortion.cpp
 792     alc/effects/echo.cpp
 793     alc/effects/equalizer.cpp
 794     alc/effects/fshifter.cpp
 795     alc/effects/modulator.cpp
 796     alc/effects/null.cpp
 797     alc/effects/pshifter.cpp
 798     alc/effects/reverb.cpp
 799     alc/effects/vmorpher.cpp
 800     alc/events.cpp
 801     alc/events.h
 802     alc/export_list.h
 803     alc/inprogext.h
 804     alc/panning.cpp)
 805
 806 if(ALSOFT_EAX)
 807     set(OPENAL_OBJS
 808         ${OPENAL_OBJS}
 809         al/eax/api.cpp
 810         al/eax/api.h
 811         al/eax/call.cpp
 812         al/eax/call.h
 813         al/eax/effect.h
 814         al/eax/exception.cpp
 815         al/eax/exception.h
 816         al/eax/fx_slot_index.cpp
 817         al/eax/fx_slot_index.h
 818         al/eax/fx_slots.cpp
 819         al/eax/fx_slots.h
 820         al/eax/globals.h
 821         al/eax/utils.cpp
 822         al/eax/utils.h
 823         al/eax/x_ram.h
 824     )
 825 endif()
 826
 827 # Include SIMD mixers
 828 set(CPU_EXTS "Default")
 829 if(HAVE_SSE)
 830     set(CORE_OBJS  ${CORE_OBJS} core/mixer/mixer_sse.cpp)
 831     set(CPU_EXTS "${CPU_EXTS}, SSE")
 832 endif()
 833 if(HAVE_SSE2)
 834     set(CORE_OBJS  ${CORE_OBJS} core/mixer/mixer_sse2.cpp)
 835     set(CPU_EXTS "${CPU_EXTS}, SSE2")
 836 endif()
 837 if(HAVE_SSE3)
 838     set(CORE_OBJS  ${CORE_OBJS} core/mixer/mixer_sse3.cpp)
 839     set(CPU_EXTS "${CPU_EXTS}, SSE3")
 840 endif()
 841 if(HAVE_SSE4_1)
 842     set(CORE_OBJS  ${CORE_OBJS} core/mixer/mixer_sse41.cpp)
 843     set(CPU_EXTS "${CPU_EXTS}, SSE4.1")
 844 endif()
 845 if(HAVE_NEON)
 846     set(CORE_OBJS  ${CORE_OBJS} core/mixer/mixer_neon.cpp)
 847     set(CPU_EXTS "${CPU_EXTS}, Neon")
 848 endif()
 849
 850
 851 set(HAVE_ALSA       0)
 852 set(HAVE_OSS        0)
 853 set(HAVE_PIPEWIRE   0)
 854 set(HAVE_SOLARIS    0)
 855 set(HAVE_SNDIO      0)
 856 set(HAVE_DSOUND     0)
 857 set(HAVE_WASAPI     0)
 858 set(HAVE_WINMM      0)
 859 set(HAVE_PORTAUDIO  0)
 860 set(HAVE_PULSEAUDIO 0)
 861 set(HAVE_COREAUDIO  0)
 862 set(HAVE_OPENSL     0)
 863 set(HAVE_OBOE       0)
 864 set(HAVE_WAVE       0)
 865 set(HAVE_SDL2       0)
 866
 867 if(WIN32 OR HAVE_DLFCN_H)
 868     set(IS_LINKED "")
 869     macro(ADD_BACKEND_LIBS _LIBS)
 870     endmacro()
 871 else()
 872     set(IS_LINKED " (linked)")
 873     macro(ADD_BACKEND_LIBS _LIBS)
 874         set(EXTRA_LIBS ${_LIBS} ${EXTRA_LIBS})
 875     endmacro()
 876 endif()
 877
 878 set(BACKENDS "")
 879 set(ALC_OBJS  ${ALC_OBJS}
 880     alc/backends/base.cpp
 881     alc/backends/base.h
 882     # Default backends, always available
 883     alc/backends/loopback.cpp
 884     alc/backends/loopback.h
 885     alc/backends/null.cpp
 886     alc/backends/null.h
 887 )
 888
 889 # Check PipeWire backend
 890 option(ALSOFT_BACKEND_PIPEWIRE "Enable PipeWire backend" ON)
 891 option(ALSOFT_REQUIRE_PIPEWIRE "Require PipeWire backend" OFF)
 892 if(ALSOFT_BACKEND_PIPEWIRE AND PkgConfig_FOUND)
 893     pkg_check_modules(PIPEWIRE libpipewire-0.3>=0.3.23)
 894     if(PIPEWIRE_FOUND)
 895         set(HAVE_PIPEWIRE 1)
 896         set(BACKENDS  "${BACKENDS} PipeWire${IS_LINKED},")
 897         set(ALC_OBJS  ${ALC_OBJS} alc/backends/pipewire.cpp alc/backends/pipewire.h)
 898         add_backend_libs(${PIPEWIRE_LIBRARIES})
 899         set(INC_PATHS ${INC_PATHS} ${PIPEWIRE_INCLUDE_DIRS})
 900     endif()
 901 endif()
 902 if(ALSOFT_REQUIRE_PIPEWIRE AND NOT HAVE_PIPEWIRE)
 903     message(FATAL_ERROR "Failed to enable required PipeWire backend")
 904 endif()
 905
 906 # Check PulseAudio backend
 907 option(ALSOFT_BACKEND_PULSEAUDIO "Enable PulseAudio backend" ON)
 908 option(ALSOFT_REQUIRE_PULSEAUDIO "Require PulseAudio backend" OFF)
 909 if(ALSOFT_BACKEND_PULSEAUDIO)
 910     find_package(PulseAudio)
 911     if(PULSEAUDIO_FOUND)
 912         set(HAVE_PULSEAUDIO 1)
 913         set(BACKENDS  "${BACKENDS} PulseAudio${IS_LINKED},")
 914         set(ALC_OBJS  ${ALC_OBJS} alc/backends/pulseaudio.cpp alc/backends/pulseaudio.h)
 915         add_backend_libs(${PULSEAUDIO_LIBRARY})
 916         set(INC_PATHS ${INC_PATHS} ${PULSEAUDIO_INCLUDE_DIR})
 917     endif()
 918 endif()
 919 if(ALSOFT_REQUIRE_PULSEAUDIO AND NOT HAVE_PULSEAUDIO)
 920     message(FATAL_ERROR "Failed to enable required PulseAudio backend")
 921 endif()
 922
 923 if(NOT WIN32)
 924     # Check ALSA backend
 925     option(ALSOFT_BACKEND_ALSA "Enable ALSA backend" ON)
 926     option(ALSOFT_REQUIRE_ALSA "Require ALSA backend" OFF)
 927     if(ALSOFT_BACKEND_ALSA)
 928         find_package(ALSA)
 929         if(ALSA_FOUND)
 930             set(HAVE_ALSA 1)
 931             set(BACKENDS  "${BACKENDS} ALSA${IS_LINKED},")
 932             set(ALC_OBJS  ${ALC_OBJS} alc/backends/alsa.cpp alc/backends/alsa.h)
 933             add_backend_libs(${ALSA_LIBRARIES})
 934             set(INC_PATHS ${INC_PATHS} ${ALSA_INCLUDE_DIRS})
 935         endif()
 936     endif()
 937
 938     # Check OSS backend
 939     option(ALSOFT_BACKEND_OSS "Enable OSS backend" ON)
 940     option(ALSOFT_REQUIRE_OSS "Require OSS backend" OFF)
 941     if(ALSOFT_BACKEND_OSS)
 942         find_package(OSS)
 943         if(OSS_FOUND)
 944             set(HAVE_OSS 1)
 945             set(BACKENDS  "${BACKENDS} OSS,")
 946             set(ALC_OBJS  ${ALC_OBJS} alc/backends/oss.cpp alc/backends/oss.h)
 947             if(OSS_LIBRARIES)
 948                 set(EXTRA_LIBS ${OSS_LIBRARIES} ${EXTRA_LIBS})
 949             endif()
 950             set(INC_PATHS ${INC_PATHS} ${OSS_INCLUDE_DIRS})
 951         endif()
 952     endif()
 953
 954     # Check Solaris backend
 955     option(ALSOFT_BACKEND_SOLARIS "Enable Solaris backend" ON)
 956     option(ALSOFT_REQUIRE_SOLARIS "Require Solaris backend" OFF)
 957     if(ALSOFT_BACKEND_SOLARIS)
 958         find_package(AudioIO)
 959         if(AUDIOIO_FOUND)
 960             set(HAVE_SOLARIS 1)
 961             set(BACKENDS  "${BACKENDS} Solaris,")
 962             set(ALC_OBJS  ${ALC_OBJS} alc/backends/solaris.cpp alc/backends/solaris.h)
 963             set(INC_PATHS ${INC_PATHS} ${AUDIOIO_INCLUDE_DIRS})
 964         endif()
 965     endif()
 966
 967     # Check SndIO backend (disabled by default on non-BSDs)
 968     if(BSD)
 969         option(ALSOFT_BACKEND_SNDIO "Enable SndIO backend" ON)
 970     else()
 971         option(ALSOFT_BACKEND_SNDIO "Enable SndIO backend" OFF)
 972     endif()
 973     option(ALSOFT_REQUIRE_SNDIO "Require SndIO backend" OFF)
 974     if(ALSOFT_BACKEND_SNDIO)
 975         find_package(SndIO)
 976         if(SNDIO_FOUND)
 977             set(HAVE_SNDIO 1)
 978             set(BACKENDS  "${BACKENDS} SndIO (linked),")
 979             set(ALC_OBJS  ${ALC_OBJS} alc/backends/sndio.cpp alc/backends/sndio.h)
 980             set(EXTRA_LIBS ${SNDIO_LIBRARIES} ${EXTRA_LIBS})
 981             set(INC_PATHS ${INC_PATHS} ${SNDIO_INCLUDE_DIRS})
 982         endif()
 983     endif()
 984 endif()
 985 if(ALSOFT_REQUIRE_ALSA AND NOT HAVE_ALSA)
 986     message(FATAL_ERROR "Failed to enable required ALSA backend")
 987 endif()
 988 if(ALSOFT_REQUIRE_OSS AND NOT HAVE_OSS)
 989     message(FATAL_ERROR "Failed to enable required OSS backend")
 990 endif()
 991 if(ALSOFT_REQUIRE_SOLARIS AND NOT HAVE_SOLARIS)
 992     message(FATAL_ERROR "Failed to enable required Solaris backend")
 993 endif()
 994 if(ALSOFT_REQUIRE_SNDIO AND NOT HAVE_SNDIO)
 995     message(FATAL_ERROR "Failed to enable required SndIO backend")
 996 endif()
 997
 998 # Check Windows-only backends
 999 if(WIN32)
1000     if (NOT ALSOFT_UWP)
1001         # Check MMSystem backend
1002         option(ALSOFT_BACKEND_WINMM "Enable Windows Multimedia backend" ON)
1003         option(ALSOFT_REQUIRE_WINMM "Require Windows Multimedia backend" OFF)
1004         if(ALSOFT_BACKEND_WINMM)
1005             set(HAVE_WINMM 1)
1006             set(BACKENDS "${BACKENDS} WinMM,")
1007             set(ALC_OBJS ${ALC_OBJS} alc/backends/winmm.cpp alc/backends/winmm.h)
1008             # There doesn't seem to be good way to search for winmm.lib for MSVC.
1009             # find_library doesn't find it without being told to look in a specific
1010             # place in the WindowsSDK, but it links anyway. If there ends up being
1011             # Windows targets without this, another means to detect it is needed.
1012             set(EXTRA_LIBS winmm ${EXTRA_LIBS})
1013         endif()
1014
1015         # Check DSound backend
1016         option(ALSOFT_BACKEND_DSOUND "Enable DirectSound backend" ON)
1017         option(ALSOFT_REQUIRE_DSOUND "Require DirectSound backend" OFF)
1018         if(ALSOFT_BACKEND_DSOUND)
1019             check_include_file(dsound.h HAVE_DSOUND_H)
1020             if(DXSDK_DIR)
1021                 find_path(DSOUND_INCLUDE_DIR NAMES "dsound.h"
1022                     PATHS "${DXSDK_DIR}" PATH_SUFFIXES include
1023                     DOC "The DirectSound include directory")
1024             endif()
1025             if(HAVE_DSOUND_H OR DSOUND_INCLUDE_DIR)
1026                 set(HAVE_DSOUND 1)
1027                 set(BACKENDS "${BACKENDS} DirectSound,")
1028                 set(ALC_OBJS ${ALC_OBJS} alc/backends/dsound.cpp alc/backends/dsound.h)
1029
1030                 if(NOT HAVE_DSOUND_H)
1031                     set(INC_PATHS ${INC_PATHS} ${DSOUND_INCLUDE_DIR})
1032                 endif()
1033             endif()
1034         endif()
1035     endif()
1036
1037     # Check for WASAPI backend
1038     option(ALSOFT_BACKEND_WASAPI "Enable WASAPI backend" ON)
1039     option(ALSOFT_REQUIRE_WASAPI "Require WASAPI backend" OFF)
1040     if(ALSOFT_BACKEND_WASAPI)
1041         check_include_file(mmdeviceapi.h HAVE_MMDEVICEAPI_H)
1042         if(HAVE_MMDEVICEAPI_H)
1043             set(HAVE_WASAPI 1)
1044             set(BACKENDS  "${BACKENDS} WASAPI,")
1045             set(ALC_OBJS  ${ALC_OBJS} alc/backends/wasapi.cpp alc/backends/wasapi.h)
1046         endif()
1047     endif()
1048 endif()
1049 if(ALSOFT_REQUIRE_WINMM AND NOT HAVE_WINMM)
1050     message(FATAL_ERROR "Failed to enable required WinMM backend")
1051 endif()
1052 if(ALSOFT_REQUIRE_DSOUND AND NOT HAVE_DSOUND)
1053     message(FATAL_ERROR "Failed to enable required DSound backend")
1054 endif()
1055 if(ALSOFT_REQUIRE_WASAPI AND NOT HAVE_WASAPI)
1056     message(FATAL_ERROR "Failed to enable required WASAPI backend")
1057 endif()
1058
1059 # Check JACK backend
1060 option(ALSOFT_BACKEND_JACK "Enable JACK backend" ON)
1061 option(ALSOFT_REQUIRE_JACK "Require JACK backend" OFF)
1062 if(ALSOFT_BACKEND_JACK)
1063     find_package(JACK)
1064     if(JACK_FOUND)
1065         set(HAVE_JACK 1)
1066         set(BACKENDS  "${BACKENDS} JACK${IS_LINKED},")
1067         set(ALC_OBJS  ${ALC_OBJS} alc/backends/jack.cpp alc/backends/jack.h)
1068         add_backend_libs(${JACK_LIBRARIES})
1069         set(INC_PATHS ${INC_PATHS} ${JACK_INCLUDE_DIRS})
1070     endif()
1071 endif()
1072 if(ALSOFT_REQUIRE_JACK AND NOT HAVE_JACK)
1073     message(FATAL_ERROR "Failed to enable required JACK backend")
1074 endif()
1075
1076 # Check CoreAudio backend
1077 option(ALSOFT_BACKEND_COREAUDIO "Enable CoreAudio backend" ON)
1078 option(ALSOFT_REQUIRE_COREAUDIO "Require CoreAudio backend" OFF)
1079 if(ALSOFT_BACKEND_COREAUDIO)
1080     find_library(COREAUDIO_FRAMEWORK NAMES CoreAudio)
1081     find_path(AUDIOUNIT_INCLUDE_DIR NAMES AudioUnit/AudioUnit.h)
1082     if(COREAUDIO_FRAMEWORK AND AUDIOUNIT_INCLUDE_DIR)
1083         set(HAVE_COREAUDIO 1)
1084         set(ALC_OBJS  ${ALC_OBJS} alc/backends/coreaudio.cpp alc/backends/coreaudio.h)
1085         set(BACKENDS  "${BACKENDS} CoreAudio,")
1086
1087         set(EXTRA_LIBS -Wl,-framework,CoreAudio ${EXTRA_LIBS})
1088         if(CMAKE_SYSTEM_NAME MATCHES "^(iOS|tvOS)$")
1089             find_library(COREFOUNDATION_FRAMEWORK NAMES CoreFoundation)
1090             if(COREFOUNDATION_FRAMEWORK)
1091                 set(EXTRA_LIBS -Wl,-framework,CoreFoundation ${EXTRA_LIBS})
1092             endif()
1093         else()
1094             set(EXTRA_LIBS -Wl,-framework,AudioUnit,-framework,ApplicationServices ${EXTRA_LIBS})
1095         endif()
1096
1097         # Some versions of OSX may need the AudioToolbox framework. Add it if
1098         # it's found.
1099         find_library(AUDIOTOOLBOX_LIBRARY NAMES AudioToolbox)
1100         if(AUDIOTOOLBOX_LIBRARY)
1101             set(EXTRA_LIBS -Wl,-framework,AudioToolbox ${EXTRA_LIBS})
1102         endif()
1103
1104         set(INC_PATHS ${INC_PATHS} ${AUDIOUNIT_INCLUDE_DIR})
1105     endif()
1106 endif()
1107 if(ALSOFT_REQUIRE_COREAUDIO AND NOT HAVE_COREAUDIO)
1108     message(FATAL_ERROR "Failed to enable required CoreAudio backend")
1109 endif()
1110
1111 # Check for Oboe (Android) backend
1112 option(ALSOFT_BACKEND_OBOE "Enable Oboe backend" ON)
1113 option(ALSOFT_REQUIRE_OBOE "Require Oboe backend" OFF)
1114 if(ALSOFT_BACKEND_OBOE)
1115     set(OBOE_TARGET )
1116     if(ANDROID)
1117         set(OBOE_SOURCE "" CACHE STRING "Source directory for Oboe.")
1118         if(OBOE_SOURCE)
1119             add_subdirectory(${OBOE_SOURCE} ./oboe EXCLUDE_FROM_ALL)
1120             set(OBOE_TARGET oboe)
1121         else()
1122             find_package(oboe CONFIG)
1123             if(NOT TARGET oboe::oboe)
1124                 find_package(Oboe)
1125             endif()
1126             if(TARGET oboe::oboe)
1127                 set(OBOE_TARGET "oboe::oboe")
1128             endif()
1129         endif()
1130     endif()
1131
1132     if(OBOE_TARGET)
1133         set(HAVE_OBOE 1)
1134         set(ALC_OBJS  ${ALC_OBJS} alc/backends/oboe.cpp alc/backends/oboe.h)
1135         set(BACKENDS  "${BACKENDS} Oboe,")
1136         set(EXTRA_LIBS ${OBOE_TARGET} ${EXTRA_LIBS})
1137     endif()
1138 endif()
1139 if(ALSOFT_REQUIRE_OBOE AND NOT HAVE_OBOE)
1140     message(FATAL_ERROR "Failed to enable required Oboe backend")
1141 endif()
1142
1143 # Check for OpenSL (Android) backend
1144 option(ALSOFT_BACKEND_OPENSL "Enable OpenSL backend" ON)
1145 option(ALSOFT_REQUIRE_OPENSL "Require OpenSL backend" OFF)
1146 if(ALSOFT_BACKEND_OPENSL)
1147     find_package(OpenSL)
1148     if(OPENSL_FOUND)
1149         set(HAVE_OPENSL 1)
1150         set(ALC_OBJS  ${ALC_OBJS} alc/backends/opensl.cpp alc/backends/opensl.h)
1151         set(BACKENDS  "${BACKENDS} OpenSL,")
1152         set(EXTRA_LIBS ${OPENSL_LIBRARIES} ${EXTRA_LIBS})
1153         set(INC_PATHS ${INC_PATHS} ${OPENSL_INCLUDE_DIRS})
1154     endif()
1155 endif()
1156 if(ALSOFT_REQUIRE_OPENSL AND NOT HAVE_OPENSL)
1157     message(FATAL_ERROR "Failed to enable required OpenSL backend")
1158 endif()
1159
1160 # Check PortAudio backend
1161 option(ALSOFT_BACKEND_PORTAUDIO "Enable PortAudio backend" ON)
1162 option(ALSOFT_REQUIRE_PORTAUDIO "Require PortAudio backend" OFF)
1163 if(ALSOFT_BACKEND_PORTAUDIO)
1164     find_package(PortAudio)
1165     if(PORTAUDIO_FOUND)
1166         set(HAVE_PORTAUDIO 1)
1167         set(BACKENDS  "${BACKENDS} PortAudio${IS_LINKED},")
1168         set(ALC_OBJS  ${ALC_OBJS} alc/backends/portaudio.cpp alc/backends/portaudio.h)
1169         add_backend_libs(${PORTAUDIO_LIBRARIES})
1170         set(INC_PATHS ${INC_PATHS} ${PORTAUDIO_INCLUDE_DIRS})
1171     endif()
1172 endif()
1173 if(ALSOFT_REQUIRE_PORTAUDIO AND NOT HAVE_PORTAUDIO)
1174     message(FATAL_ERROR "Failed to enable required PortAudio backend")
1175 endif()
1176
1177 # Check for SDL2 backend
1178 # Off by default, since it adds a runtime dependency
1179 option(ALSOFT_BACKEND_SDL2 "Enable SDL2 backend" OFF)
1180 option(ALSOFT_REQUIRE_SDL2 "Require SDL2 backend" OFF)
1181 if(ALSOFT_BACKEND_SDL2)
1182     if(SDL2_FOUND)
1183         set(HAVE_SDL2 1)
1184         set(ALC_OBJS  ${ALC_OBJS} alc/backends/sdl2.cpp alc/backends/sdl2.h)
1185         set(BACKENDS  "${BACKENDS} SDL2,")
1186         set(EXTRA_LIBS ${EXTRA_LIBS} SDL2::SDL2)
1187     else()
1188         message(STATUS "Could NOT find SDL2")
1189     endif()
1190 endif()
1191 if(ALSOFT_REQUIRE_SDL2 AND NOT SDL2_FOUND)
1192     message(FATAL_ERROR "Failed to enable required SDL2 backend")
1193 endif()
1194
1195 # Optionally enable the Wave Writer backend
1196 option(ALSOFT_BACKEND_WAVE "Enable Wave Writer backend" ON)
1197 if(ALSOFT_BACKEND_WAVE)
1198     set(HAVE_WAVE 1)
1199     set(ALC_OBJS  ${ALC_OBJS} alc/backends/wave.cpp alc/backends/wave.h)
1200     set(BACKENDS  "${BACKENDS} WaveFile,")
1201 endif()
1202
1203 # This is always available
1204 set(BACKENDS  "${BACKENDS} Null")
1205
1206
1207 find_package(Git)
1208 if(ALSOFT_UPDATE_BUILD_VERSION AND GIT_FOUND AND EXISTS "${OpenAL_SOURCE_DIR}/.git")
1209     set(GIT_DIR "${OpenAL_SOURCE_DIR}/.git")
1210
1211     # Check if this is a submodule, if it is then find the .git directory
1212     if(NOT IS_DIRECTORY "${OpenAL_SOURCE_DIR}/.git")
1213         file(READ ${GIT_DIR} submodule)
1214         string(REGEX REPLACE "gitdir: (.*)$" "\\1" GIT_DIR_RELATIVE ${submodule})
1215         string(STRIP ${GIT_DIR_RELATIVE} GIT_DIR_RELATIVE)
1216         get_filename_component(SUBMODULE_DIR ${GIT_DIR} PATH)
1217         get_filename_component(GIT_DIR ${SUBMODULE_DIR}/${GIT_DIR_RELATIVE} ABSOLUTE)
1218     endif()
1219
1220     # Get the current working branch and its latest abbreviated commit hash
1221     add_custom_command(OUTPUT "${OpenAL_BINARY_DIR}/version_witness.txt"
1222         BYPRODUCTS "${OpenAL_BINARY_DIR}/version.h"
1223         COMMAND ${CMAKE_COMMAND} -D GIT_EXECUTABLE=${GIT_EXECUTABLE} -D LIB_VERSION=${LIB_VERSION}
1224             -D LIB_VERSION_NUM=${LIB_VERSION_NUM} -D SRC=${OpenAL_SOURCE_DIR}/version.h.in
1225             -D DST=${OpenAL_BINARY_DIR}/version.h -P ${OpenAL_SOURCE_DIR}/version.cmake
1226         COMMAND ${CMAKE_COMMAND} -E touch "${OpenAL_BINARY_DIR}/version_witness.txt"
1227         WORKING_DIRECTORY "${OpenAL_SOURCE_DIR}"
1228         MAIN_DEPENDENCY "${OpenAL_SOURCE_DIR}/version.h.in"
1229         DEPENDS "${GIT_DIR}/index" "${OpenAL_SOURCE_DIR}/version.cmake"
1230         VERBATIM
1231     )
1232
1233     add_custom_target(build_version DEPENDS "${OpenAL_BINARY_DIR}/version_witness.txt")
1234 else()
1235     set(GIT_BRANCH "UNKNOWN")
1236     set(GIT_COMMIT_HASH "unknown")
1237     configure_file(
1238         "${OpenAL_SOURCE_DIR}/version.h.in"
1239         "${OpenAL_BINARY_DIR}/version.h")
1240 endif()
1241
1242
1243 option(ALSOFT_EMBED_HRTF_DATA "Embed the HRTF data files (increases library footprint)" ON)
1244 if(ALSOFT_EMBED_HRTF_DATA)
1245     macro(make_hrtf_header FILENAME VARNAME)
1246         set(infile  "${OpenAL_SOURCE_DIR}/hrtf/${FILENAME}")
1247         set(outfile  "${OpenAL_BINARY_DIR}/${VARNAME}.txt")
1248
1249         add_custom_command(OUTPUT "${outfile}"
1250             COMMAND ${CMAKE_COMMAND} -D "INPUT_FILE=${infile}" -D "OUTPUT_FILE=${outfile}"
1251                 -P "${CMAKE_MODULE_PATH}/bin2h.script.cmake"
1252             WORKING_DIRECTORY "${OpenAL_SOURCE_DIR}"
1253             DEPENDS "${infile}" "${CMAKE_MODULE_PATH}/bin2h.script.cmake"
1254             VERBATIM
1255         )
1256         set(ALC_OBJS  ${ALC_OBJS} "${outfile}")
1257     endmacro()
1258
1259     make_hrtf_header("Default HRTF.mhr" "default_hrtf")
1260 endif()
1261
1262
1263 if(ALSOFT_UTILS)
1264     find_package(MySOFA)
1265     if(NOT ALSOFT_NO_CONFIG_UTIL)
1266         find_package(Qt5Widgets QUIET)
1267         if(NOT Qt5Widgets_FOUND)
1268             message(STATUS "Could NOT find Qt5Widgets")
1269         endif()
1270     endif()
1271 endif()
1272 if(ALSOFT_UTILS OR ALSOFT_EXAMPLES)
1273     find_package(SndFile)
1274     if(SDL2_FOUND)
1275         find_package(FFmpeg COMPONENTS AVFORMAT AVCODEC AVUTIL SWSCALE SWRESAMPLE)
1276     endif()
1277 endif()
1278
1279 if(NOT WIN32)
1280     set(LIBNAME "openal")
1281 else()
1282     set(LIBNAME "OpenAL32")
1283 endif()
1284
1285 # Needed for openal.pc.in
1286 set(prefix ${CMAKE_INSTALL_PREFIX})
1287 set(exec_prefix "\${prefix}")
1288 set(libdir "${CMAKE_INSTALL_FULL_LIBDIR}")
1289 set(bindir "${CMAKE_INSTALL_FULL_BINDIR}")
1290 set(includedir "${CMAKE_INSTALL_FULL_INCLUDEDIR}")
1291 set(PACKAGE_VERSION "${LIB_VERSION}")
1292 set(PKG_CONFIG_CFLAGS )
1293 set(PKG_CONFIG_PRIVATE_LIBS )
1294 if(LIBTYPE STREQUAL "STATIC")
1295     set(PKG_CONFIG_CFLAGS -DAL_LIBTYPE_STATIC)
1296     foreach(FLAG  ${LINKER_FLAGS} ${EXTRA_LIBS} ${MATH_LIB})
1297         # If this is already a linker flag, or is a full path+file, add it
1298         # as-is. If it's an SDL2 target, add the link flag for it. Otherwise,
1299         # it's a name intended to be dressed as -lname.
1300         if(FLAG MATCHES "^-.*" OR EXISTS "${FLAG}")
1301             set(PKG_CONFIG_PRIVATE_LIBS "${PKG_CONFIG_PRIVATE_LIBS} ${FLAG}")
1302         elseif(FLAG MATCHES "^SDL2::SDL2")
1303             set(PKG_CONFIG_PRIVATE_LIBS "${PKG_CONFIG_PRIVATE_LIBS} -lSDL2")
1304         else()
1305             set(PKG_CONFIG_PRIVATE_LIBS "${PKG_CONFIG_PRIVATE_LIBS} -l${FLAG}")
1306         endif()
1307     endforeach()
1308 endif()
1309
1310 # End configuration
1311 configure_file(
1312     "${OpenAL_SOURCE_DIR}/config.h.in"
1313     "${OpenAL_BINARY_DIR}/config.h")
1314 configure_file(
1315     "${OpenAL_SOURCE_DIR}/openal.pc.in"
1316     "${OpenAL_BINARY_DIR}/openal.pc"
1317     @ONLY)
1318
1319
1320 add_library(alcommon STATIC EXCLUDE_FROM_ALL ${COMMON_OBJS})
1321 target_include_directories(alcommon PRIVATE ${OpenAL_BINARY_DIR} ${OpenAL_SOURCE_DIR}/include
1322     PUBLIC ${OpenAL_SOURCE_DIR}/common)
1323 target_compile_definitions(alcommon PRIVATE ${CPP_DEFS})
1324 target_compile_options(alcommon PRIVATE ${C_FLAGS})
1325 set_target_properties(alcommon PROPERTIES ${DEFAULT_TARGET_PROPS} POSITION_INDEPENDENT_CODE TRUE)
1326
1327
1328 unset(HAS_ROUTER)
1329 set(IMPL_TARGET OpenAL) # Either OpenAL or soft_oal.
1330
1331 # Build main library
1332 if(LIBTYPE STREQUAL "STATIC")
1333     add_library(${IMPL_TARGET} STATIC ${COMMON_OBJS} ${OPENAL_OBJS} ${ALC_OBJS} ${CORE_OBJS})
1334     target_compile_definitions(${IMPL_TARGET} PUBLIC AL_LIBTYPE_STATIC)
1335     target_link_libraries(${IMPL_TARGET} PRIVATE ${LINKER_FLAGS} ${EXTRA_LIBS} ${MATH_LIB})
1336
1337     if(WIN32)
1338         # This option is for static linking OpenAL Soft into another project
1339         # that already defines the IDs. It is up to that project to ensure all
1340         # required IDs are defined.
1341         option(ALSOFT_NO_UID_DEFS "Do not define GUIDs, IIDs, CLSIDs, or PropertyKeys" OFF)
1342         if(ALSOFT_NO_UID_DEFS)
1343             target_compile_definitions(${IMPL_TARGET} PRIVATE AL_NO_UID_DEFS)
1344         endif()
1345     endif()
1346 else()
1347     set(RC_CONFIG resources/openal32.rc)
1348     if(WIN32 AND ALSOFT_BUILD_ROUTER)
1349         add_library(OpenAL SHARED
1350             resources/router.rc
1351             router/router.cpp
1352             router/router.h
1353             router/alc.cpp
1354             router/al.cpp
1355         )
1356         target_compile_definitions(OpenAL
1357             PRIVATE AL_BUILD_LIBRARY AL_ALEXT_PROTOTYPES "ALC_API=${EXPORT_DECL}"
1358             "AL_API=${EXPORT_DECL}" ${CPP_DEFS})
1359         target_compile_options(OpenAL PRIVATE ${C_FLAGS})
1360         target_link_libraries(OpenAL PRIVATE alcommon ${LINKER_FLAGS})
1361         target_include_directories(OpenAL
1362           PUBLIC
1363             $<BUILD_INTERFACE:${OpenAL_SOURCE_DIR}/include>
1364             $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
1365           PRIVATE
1366             ${OpenAL_SOURCE_DIR}/common
1367             ${OpenAL_BINARY_DIR}
1368         )
1369         set_target_properties(OpenAL PROPERTIES ${DEFAULT_TARGET_PROPS} PREFIX ""
1370             OUTPUT_NAME ${LIBNAME})
1371         if(TARGET build_version)
1372             add_dependencies(OpenAL build_version)
1373         endif()
1374         set(HAS_ROUTER 1)
1375
1376         set(LIBNAME "soft_oal")
1377         set(IMPL_TARGET soft_oal)
1378         set(RC_CONFIG resources/soft_oal.rc)
1379     endif()
1380
1381     # !important: for osx framework public header works, the headers must be in
1382     # the project
1383     set(TARGET_PUBLIC_HEADERS include/AL/al.h include/AL/alc.h include/AL/alext.h include/AL/efx.h
1384         include/AL/efx-presets.h)
1385
1386     add_library(${IMPL_TARGET} SHARED ${OPENAL_OBJS} ${ALC_OBJS} ${CORE_OBJS} ${RC_CONFIG}
1387         ${TARGET_PUBLIC_HEADERS})
1388     if(WIN32)
1389         set_target_properties(${IMPL_TARGET} PROPERTIES PREFIX "")
1390     endif()
1391     target_link_libraries(${IMPL_TARGET} PRIVATE alcommon ${LINKER_FLAGS} ${EXTRA_LIBS} ${MATH_LIB})
1392
1393     if(ALSOFT_UWP)
1394         set(ALSOFT_CPPWINRT_VERSION "2.0.230706.1" CACHE STRING "The soft-oal default cppwinrt version")
1395
1396         find_program(NUGET_EXE NAMES nuget)
1397         if(NOT NUGET_EXE)
1398             message("NUGET.EXE not found.")
1399             message(FATAL_ERROR "Please install this executable, and run CMake again.")
1400         endif()
1401
1402         exec_program(${NUGET_EXE}
1403             ARGS install "Microsoft.Windows.CppWinRT" -Version ${ALSOFT_CPPWINRT_VERSION} -ExcludeVersion -OutputDirectory "\"${CMAKE_BINARY_DIR}/packages\"")
1404
1405         set_target_properties(${IMPL_TARGET} PROPERTIES
1406             VS_PROJECT_IMPORT ${CMAKE_BINARY_DIR}/packages/Microsoft.Windows.CppWinRT/build/native/Microsoft.Windows.CppWinRT.props
1407         )
1408         target_link_libraries(${IMPL_TARGET} PRIVATE ${CMAKE_BINARY_DIR}/packages/Microsoft.Windows.CppWinRT/build/native/Microsoft.Windows.CppWinRT.targets)
1409     endif()
1410
1411     if(NOT WIN32 AND NOT APPLE)
1412         # FIXME: This doesn't put a dependency on the version script. Changing
1413         # the version script will not cause a relink as it should.
1414         target_link_options(${IMPL_TARGET} PRIVATE
1415             "-Wl,--version-script=${OpenAL_SOURCE_DIR}/libopenal.version")
1416     endif()
1417
1418     if(APPLE AND ALSOFT_OSX_FRAMEWORK)
1419         # Sets framework name to soft_oal to avoid ambiguity with the system OpenAL.framework
1420         set(LIBNAME "soft_oal")
1421         if(GIT_FOUND)
1422             execute_process(COMMAND ${GIT_EXECUTABLE} rev-list --count HEAD
1423                 TIMEOUT 5
1424                 OUTPUT_VARIABLE BUNDLE_VERSION
1425                 OUTPUT_STRIP_TRAILING_WHITESPACE)
1426         else()
1427             set(BUNDLE_VERSION 1)
1428         endif()
1429
1430         # Build: Fix rpath in iOS shared libraries
1431         # If this flag is not set, the final dylib binary ld path will be
1432         # /User/xxx/*/soft_oal.framework/soft_oal, which can't be loaded by iOS devices.
1433         # See also: https://github.com/libjpeg-turbo/libjpeg-turbo/commit/c80ddef7a4ce21ace9e3ca0fd190d320cc8cdaeb
1434         if(NOT CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG)
1435             set(CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG "-Wl,-rpath,")
1436         endif()
1437
1438         set_target_properties(${IMPL_TARGET} PROPERTIES
1439             FRAMEWORK TRUE
1440             FRAMEWORK_VERSION C
1441             MACOSX_FRAMEWORK_NAME "${IMPL_TARGET}"
1442             MACOSX_FRAMEWORK_IDENTIFIER "org.openal-soft.openal"
1443             MACOSX_FRAMEWORK_SHORT_VERSION_STRING "${LIB_VERSION}"
1444             MACOSX_FRAMEWORK_BUNDLE_VERSION "${BUNDLE_VERSION}"
1445             XCODE_ATTRIBUTE_CODE_SIGN_IDENTITY ""
1446             XCODE_ATTRIBUTE_CODE_SIGNING_ALLOWED "NO"
1447             XCODE_ATTRIBUTE_CODE_SIGNING_REQUIRED "NO"
1448             PUBLIC_HEADER "${TARGET_PUBLIC_HEADERS}"
1449             MACOSX_RPATH TRUE)
1450     endif()
1451 endif()
1452
1453 target_include_directories(${IMPL_TARGET}
1454   PUBLIC
1455     $<BUILD_INTERFACE:${OpenAL_SOURCE_DIR}/include>
1456   INTERFACE
1457     $<BUILD_INTERFACE:${OpenAL_SOURCE_DIR}/include/AL>
1458     $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
1459     $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/AL>
1460   PRIVATE
1461     ${INC_PATHS}
1462     ${OpenAL_BINARY_DIR}
1463     ${OpenAL_SOURCE_DIR}
1464     ${OpenAL_SOURCE_DIR}/common
1465 )
1466
1467 set_target_properties(${IMPL_TARGET} PROPERTIES ${DEFAULT_TARGET_PROPS}
1468     OUTPUT_NAME ${LIBNAME}
1469     VERSION ${LIB_VERSION}
1470     SOVERSION ${LIB_MAJOR_VERSION}
1471 )
1472 target_compile_definitions(${IMPL_TARGET}
1473     PRIVATE AL_BUILD_LIBRARY AL_ALEXT_PROTOTYPES $<$<BOOL:${ALSOFT_EAX}>:ALSOFT_EAX>
1474     "ALC_API=${EXPORT_DECL}" "AL_API=${EXPORT_DECL}" ${CPP_DEFS})
1475 target_compile_options(${IMPL_TARGET} PRIVATE ${C_FLAGS})
1476
1477 if(TARGET build_version)
1478     add_dependencies(${IMPL_TARGET} build_version)
1479 endif()
1480
1481 if(WIN32 AND MINGW AND ALSOFT_BUILD_IMPORT_LIB AND NOT LIBTYPE STREQUAL "STATIC")
1482     find_program(SED_EXECUTABLE NAMES sed DOC "sed executable")
1483     if(NOT SED_EXECUTABLE OR NOT CMAKE_DLLTOOL)
1484         message(STATUS "")
1485         if(NOT SED_EXECUTABLE)
1486             message(STATUS "WARNING: Cannot find sed, disabling .def/.lib generation")
1487         endif()
1488         if(NOT CMAKE_DLLTOOL)
1489             message(STATUS "WARNING: Cannot find dlltool, disabling .def/.lib generation")
1490         endif()
1491     else()
1492         target_link_options(OpenAL PRIVATE "-Wl,--output-def,${PROJECT_BINARY_DIR}/OpenAL32.def")
1493         add_custom_command(TARGET OpenAL POST_BUILD
1494             COMMAND "${SED_EXECUTABLE}" -i -e "s/ @[^ ]*//" OpenAL32.def
1495             COMMAND "${CMAKE_DLLTOOL}" -d OpenAL32.def -l OpenAL32.lib -D OpenAL32.dll
1496             # Technically OpenAL32.def was created by the build, but cmake
1497             # doesn't recognize it due to -Wl,--output-def,OpenAL32.def being
1498             # manually specified. But declaring the file here allows it to be
1499             # properly cleaned, e.g. during make clean.
1500             BYPRODUCTS OpenAL32.def OpenAL32.lib
1501             COMMENT "Stripping ordinals from OpenAL32.def and generating OpenAL32.lib..."
1502             VERBATIM
1503         )
1504     endif()
1505 endif()
1506
1507 if(HAS_ROUTER)
1508     message(STATUS "")
1509     message(STATUS "Building DLL router")
1510 endif()
1511
1512 message(STATUS "")
1513 message(STATUS "Building OpenAL with support for the following backends:")
1514 message(STATUS "   ${BACKENDS}")
1515 message(STATUS "")
1516 message(STATUS "Building with support for CPU extensions:")
1517 message(STATUS "    ${CPU_EXTS}")
1518 message(STATUS "")
1519 if(FPMATH_SET)
1520     message(STATUS "Building with SSE${FPMATH_SET} codegen")
1521     message(STATUS "")
1522 endif()
1523 if(ALSOFT_UWP)
1524     message(STATUS "Building with UWP support")
1525     message(STATUS "")
1526 endif()
1527 if(ALSOFT_EAX)
1528     message(STATUS "Building with legacy EAX extension support")
1529     message(STATUS "")
1530 endif()
1531
1532 if(ALSOFT_EMBED_HRTF_DATA)
1533     message(STATUS "Embedding HRTF datasets")
1534     message(STATUS "")
1535 endif()
1536
1537 # An alias for sub-project builds
1538 add_library(OpenAL::OpenAL ALIAS OpenAL)
1539
1540 # Install main library
1541 if(ALSOFT_INSTALL)
1542     configure_package_config_file(OpenALConfig.cmake.in OpenALConfig.cmake
1543         INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/OpenAL)
1544     install(TARGETS OpenAL EXPORT OpenAL
1545         RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
1546         LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
1547         ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
1548         FRAMEWORK DESTINATION ${CMAKE_INSTALL_LIBDIR}
1549         INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} ${CMAKE_INSTALL_INCLUDEDIR}/AL)
1550     export(TARGETS OpenAL
1551         NAMESPACE OpenAL::
1552         FILE OpenALTargets.cmake)
1553     install(EXPORT OpenAL
1554         DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/OpenAL
1555         NAMESPACE OpenAL::
1556         FILE OpenALTargets.cmake)
1557     install(DIRECTORY include/AL
1558         DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
1559     install(FILES "${OpenAL_BINARY_DIR}/openal.pc"
1560         DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
1561     install(FILES "${OpenAL_BINARY_DIR}/OpenALConfig.cmake"
1562         DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/OpenAL")
1563     if(TARGET soft_oal)
1564         install(TARGETS soft_oal
1565             RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
1566     endif()
1567     message(STATUS "Installing library and headers")
1568 else()
1569     message(STATUS "NOT installing library and headers")
1570 endif()
1571
1572 if(ALSOFT_INSTALL_CONFIG)
1573     install(FILES alsoftrc.sample
1574         DESTINATION ${CMAKE_INSTALL_DATADIR}/openal)
1575     message(STATUS "Installing sample configuration")
1576 endif()
1577
1578 if(ALSOFT_INSTALL_HRTF_DATA)
1579     install(DIRECTORY hrtf
1580         DESTINATION ${CMAKE_INSTALL_DATADIR}/openal)
1581     message(STATUS "Installing HRTF data files")
1582 endif()
1583
1584 if(ALSOFT_INSTALL_AMBDEC_PRESETS)
1585     install(DIRECTORY presets
1586         DESTINATION ${CMAKE_INSTALL_DATADIR}/openal)
1587     message(STATUS "Installing AmbDec presets")
1588 endif()
1589 message(STATUS "")
1590
1591 set(UNICODE_FLAG )
1592 if(MINGW)
1593     set(UNICODE_FLAG ${UNICODE_FLAG} -municode)
1594 endif()
1595 set(EXTRA_INSTALLS )
1596 if(ALSOFT_UTILS)
1597     add_executable(openal-info utils/openal-info.c)
1598     target_include_directories(openal-info PRIVATE ${OpenAL_SOURCE_DIR}/common)
1599     target_compile_options(openal-info PRIVATE ${C_FLAGS})
1600     target_link_libraries(openal-info PRIVATE ${LINKER_FLAGS} OpenAL ${UNICODE_FLAG})
1601     set_target_properties(openal-info PROPERTIES ${DEFAULT_TARGET_PROPS})
1602     if(ALSOFT_INSTALL_EXAMPLES)
1603         set(EXTRA_INSTALLS ${EXTRA_INSTALLS} openal-info)
1604     endif()
1605
1606     if(SNDFILE_FOUND)
1607         add_executable(uhjdecoder utils/uhjdecoder.cpp)
1608         target_compile_definitions(uhjdecoder PRIVATE ${CPP_DEFS})
1609         target_include_directories(uhjdecoder
1610             PRIVATE ${OpenAL_BINARY_DIR} ${OpenAL_SOURCE_DIR}/common)
1611         target_compile_options(uhjdecoder PRIVATE ${C_FLAGS})
1612         target_link_libraries(uhjdecoder PUBLIC alcommon
1613             PRIVATE ${LINKER_FLAGS} SndFile::SndFile ${UNICODE_FLAG})
1614         set_target_properties(uhjdecoder PROPERTIES ${DEFAULT_TARGET_PROPS})
1615
1616         add_executable(uhjencoder utils/uhjencoder.cpp)
1617         target_compile_definitions(uhjencoder PRIVATE ${CPP_DEFS})
1618         target_include_directories(uhjencoder
1619             PRIVATE ${OpenAL_BINARY_DIR} ${OpenAL_SOURCE_DIR}/common)
1620         target_compile_options(uhjencoder PRIVATE ${C_FLAGS})
1621         target_link_libraries(uhjencoder PUBLIC alcommon
1622             PRIVATE ${LINKER_FLAGS} SndFile::SndFile ${UNICODE_FLAG})
1623         set_target_properties(uhjencoder PROPERTIES ${DEFAULT_TARGET_PROPS})
1624     endif()
1625
1626     if(MYSOFA_FOUND)
1627         set(SOFA_SUPPORT_SRCS
1628             utils/sofa-support.cpp
1629             utils/sofa-support.h)
1630         add_library(sofa-support STATIC EXCLUDE_FROM_ALL ${SOFA_SUPPORT_SRCS})
1631         target_compile_definitions(sofa-support PRIVATE ${CPP_DEFS})
1632         target_include_directories(sofa-support PUBLIC ${OpenAL_SOURCE_DIR}/common)
1633         target_compile_options(sofa-support PRIVATE ${C_FLAGS})
1634         target_link_libraries(sofa-support PUBLIC alcommon MySOFA::MySOFA PRIVATE ${LINKER_FLAGS})
1635         set_target_properties(sofa-support PROPERTIES ${DEFAULT_TARGET_PROPS})
1636
1637         set(MAKEMHR_SRCS
1638             utils/makemhr/loaddef.cpp
1639             utils/makemhr/loaddef.h
1640             utils/makemhr/loadsofa.cpp
1641             utils/makemhr/loadsofa.h
1642             utils/makemhr/makemhr.cpp
1643             utils/makemhr/makemhr.h)
1644         add_executable(makemhr ${MAKEMHR_SRCS})
1645         target_compile_definitions(makemhr PRIVATE ${CPP_DEFS})
1646         target_include_directories(makemhr
1647             PRIVATE ${OpenAL_BINARY_DIR} ${OpenAL_SOURCE_DIR}/utils)
1648         target_compile_options(makemhr PRIVATE ${C_FLAGS})
1649         target_link_libraries(makemhr PRIVATE ${LINKER_FLAGS} sofa-support ${UNICODE_FLAG})
1650         set_target_properties(makemhr PROPERTIES ${DEFAULT_TARGET_PROPS})
1651         if(ALSOFT_INSTALL_EXAMPLES)
1652             set(EXTRA_INSTALLS ${EXTRA_INSTALLS} makemhr)
1653         endif()
1654
1655         set(SOFAINFO_SRCS  utils/sofa-info.cpp)
1656         add_executable(sofa-info ${SOFAINFO_SRCS})
1657         target_compile_definitions(sofa-info PRIVATE ${CPP_DEFS})
1658         target_include_directories(sofa-info PRIVATE ${OpenAL_SOURCE_DIR}/utils)
1659         target_compile_options(sofa-info PRIVATE ${C_FLAGS})
1660         target_link_libraries(sofa-info PRIVATE ${LINKER_FLAGS} sofa-support ${UNICODE_FLAG})
1661         set_target_properties(sofa-info PROPERTIES ${DEFAULT_TARGET_PROPS})
1662     endif()
1663     message(STATUS "Building utility programs")
1664
1665     if(NOT ALSOFT_NO_CONFIG_UTIL)
1666         add_subdirectory(utils/alsoft-config)
1667     endif()
1668     message(STATUS "")
1669 endif()
1670
1671
1672 # Add a static library with common functions used by multiple example targets
1673 add_library(al-excommon STATIC EXCLUDE_FROM_ALL
1674     examples/common/alhelpers.c
1675     examples/common/alhelpers.h)
1676 target_compile_definitions(al-excommon PUBLIC ${CPP_DEFS})
1677 target_include_directories(al-excommon PUBLIC ${OpenAL_SOURCE_DIR}/common)
1678 target_compile_options(al-excommon PUBLIC ${C_FLAGS})
1679 target_link_libraries(al-excommon PUBLIC OpenAL PRIVATE ${RT_LIB})
1680 set_target_properties(al-excommon PROPERTIES ${DEFAULT_TARGET_PROPS})
1681
1682 if(ALSOFT_EXAMPLES)
1683     add_executable(altonegen examples/altonegen.c)
1684     target_link_libraries(altonegen PRIVATE ${LINKER_FLAGS} ${MATH_LIB} al-excommon ${UNICODE_FLAG})
1685     set_target_properties(altonegen PROPERTIES ${DEFAULT_TARGET_PROPS})
1686
1687     add_executable(alrecord examples/alrecord.c)
1688     target_link_libraries(alrecord PRIVATE ${LINKER_FLAGS} al-excommon ${UNICODE_FLAG})
1689     set_target_properties(alrecord PROPERTIES ${DEFAULT_TARGET_PROPS})
1690
1691     add_executable(allafplay examples/allafplay.cpp)
1692     target_link_libraries(allafplay PRIVATE ${LINKER_FLAGS} alcommon al-excommon ${UNICODE_FLAG})
1693     set_target_properties(allafplay PROPERTIES ${DEFAULT_TARGET_PROPS})
1694
1695     if(ALSOFT_INSTALL_EXAMPLES)
1696         set(EXTRA_INSTALLS ${EXTRA_INSTALLS} altonegen alrecord allafplay)
1697     endif()
1698
1699     message(STATUS "Building example programs")
1700
1701     if(SNDFILE_FOUND)
1702         add_executable(alplay examples/alplay.c)
1703         target_link_libraries(alplay PRIVATE ${LINKER_FLAGS} SndFile::SndFile al-excommon
1704             ${UNICODE_FLAG})
1705         set_target_properties(alplay PROPERTIES ${DEFAULT_TARGET_PROPS})
1706
1707         add_executable(alstream examples/alstream.c)
1708         target_link_libraries(alstream PRIVATE ${LINKER_FLAGS} SndFile::SndFile al-excommon
1709             ${UNICODE_FLAG})
1710         set_target_properties(alstream PROPERTIES ${DEFAULT_TARGET_PROPS})
1711
1712         add_executable(alreverb examples/alreverb.c)
1713         target_link_libraries(alreverb PRIVATE ${LINKER_FLAGS} SndFile::SndFile al-excommon
1714             ${UNICODE_FLAG})
1715         set_target_properties(alreverb PROPERTIES ${DEFAULT_TARGET_PROPS})
1716
1717         add_executable(almultireverb examples/almultireverb.c)
1718         target_link_libraries(almultireverb
1719             PRIVATE ${LINKER_FLAGS} SndFile::SndFile al-excommon ${MATH_LIB} ${UNICODE_FLAG})
1720         set_target_properties(almultireverb PROPERTIES ${DEFAULT_TARGET_PROPS})
1721
1722         add_executable(allatency examples/allatency.c)
1723         target_link_libraries(allatency PRIVATE ${LINKER_FLAGS} SndFile::SndFile al-excommon
1724             ${UNICODE_FLAG})
1725         set_target_properties(allatency PROPERTIES ${DEFAULT_TARGET_PROPS})
1726
1727         add_executable(alhrtf examples/alhrtf.c)
1728         target_link_libraries(alhrtf
1729             PRIVATE ${LINKER_FLAGS} SndFile::SndFile al-excommon ${MATH_LIB} ${UNICODE_FLAG})
1730         set_target_properties(alhrtf PROPERTIES ${DEFAULT_TARGET_PROPS})
1731
1732         add_executable(alstreamcb examples/alstreamcb.cpp)
1733         target_link_libraries(alstreamcb PRIVATE ${LINKER_FLAGS} SndFile::SndFile al-excommon
1734             ${UNICODE_FLAG})
1735         set_target_properties(alstreamcb PROPERTIES ${DEFAULT_TARGET_PROPS})
1736
1737         add_executable(aldirect examples/aldirect.cpp)
1738         target_link_libraries(aldirect PRIVATE ${LINKER_FLAGS} SndFile::SndFile al-excommon
1739             ${UNICODE_FLAG})
1740         set_target_properties(aldirect PROPERTIES ${DEFAULT_TARGET_PROPS})
1741
1742         add_executable(alconvolve examples/alconvolve.c)
1743         target_link_libraries(alconvolve PRIVATE ${LINKER_FLAGS} alcommon SndFile::SndFile
1744             al-excommon ${UNICODE_FLAG})
1745         set_target_properties(alconvolve PROPERTIES ${DEFAULT_TARGET_PROPS})
1746
1747         if(ALSOFT_INSTALL_EXAMPLES)
1748             set(EXTRA_INSTALLS ${EXTRA_INSTALLS} alplay alstream alreverb almultireverb allatency
1749                 alhrtf aldirect)
1750         endif()
1751
1752         message(STATUS "Building SndFile example programs")
1753     endif()
1754
1755     if(SDL2_FOUND)
1756         add_executable(alloopback examples/alloopback.c)
1757         target_link_libraries(alloopback
1758             PRIVATE ${LINKER_FLAGS} SDL2::SDL2 al-excommon ${MATH_LIB})
1759         set_target_properties(alloopback PROPERTIES ${DEFAULT_TARGET_PROPS})
1760
1761         if(ALSOFT_INSTALL_EXAMPLES)
1762             set(EXTRA_INSTALLS ${EXTRA_INSTALLS} alloopback)
1763         endif()
1764
1765         message(STATUS "Building SDL example programs")
1766
1767         set(FFVER_OK FALSE)
1768         if(FFMPEG_FOUND)
1769             set(FFVER_OK TRUE)
1770             if(AVFORMAT_VERSION VERSION_LESS "59.27.100")
1771                 message(STATUS "libavformat is too old! (${AVFORMAT_VERSION}, wanted 59.27.100)")
1772                 set(FFVER_OK FALSE)
1773             endif()
1774             if(AVCODEC_VERSION VERSION_LESS "59.37.100")
1775                 message(STATUS "libavcodec is too old! (${AVCODEC_VERSION}, wanted 59.37.100)")
1776                 set(FFVER_OK FALSE)
1777             endif()
1778             if(AVUTIL_VERSION VERSION_LESS "57.28.100")
1779                 message(STATUS "libavutil is too old! (${AVUTIL_VERSION}, wanted 57.28.100)")
1780                 set(FFVER_OK FALSE)
1781             endif()
1782             if(SWSCALE_VERSION VERSION_LESS "6.7.100")
1783                 message(STATUS "libswscale is too old! (${SWSCALE_VERSION}, wanted 6.7.100)")
1784                 set(FFVER_OK FALSE)
1785             endif()
1786             if(SWRESAMPLE_VERSION VERSION_LESS "4.7.100")
1787                 message(STATUS "libswresample is too old! (${SWRESAMPLE_VERSION}, wanted 4.7.100)")
1788                 set(FFVER_OK FALSE)
1789             endif()
1790         endif()
1791         if(FFVER_OK)
1792             add_executable(alffplay examples/alffplay.cpp)
1793             target_include_directories(alffplay PRIVATE ${FFMPEG_INCLUDE_DIRS})
1794             target_link_libraries(alffplay
1795                 PRIVATE ${LINKER_FLAGS} SDL2::SDL2 ${FFMPEG_LIBRARIES} al-excommon)
1796             set_target_properties(alffplay PROPERTIES ${DEFAULT_TARGET_PROPS})
1797
1798             if(ALSOFT_INSTALL_EXAMPLES)
1799                 set(EXTRA_INSTALLS ${EXTRA_INSTALLS} alffplay)
1800             endif()
1801             message(STATUS "Building SDL+FFmpeg example programs")
1802         endif()
1803     endif()
1804     message(STATUS "")
1805 endif()
1806
1807 if (ALSOFT_TESTS)
1808 add_subdirectory(tests)
1809 endif()
1810
1811 if(EXTRA_INSTALLS)
1812     install(TARGETS ${EXTRA_INSTALLS}
1813         RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
1814         BUNDLE  DESTINATION ${CMAKE_INSTALL_BINDIR}
1815         LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
1816         ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
1817 endif()