CMakeLists.txt

   1 # CMake build file list for OpenAL
   2
   3 cmake_minimum_required(VERSION 3.0.2)
   4
   5 if(APPLE)
   6     # The workaround for try_compile failing with code signing
   7     # since cmake-3.18.2, not required
   8     set(CMAKE_TRY_COMPILE_PLATFORM_VARIABLES
   9         ${CMAKE_TRY_COMPILE_PLATFORM_VARIABLES}
  10         "CMAKE_XCODE_ATTRIBUTE_CODE_SIGNING_REQUIRED"
  11         "CMAKE_XCODE_ATTRIBUTE_CODE_SIGNING_ALLOWED")
  12     set(CMAKE_XCODE_ATTRIBUTE_CODE_SIGNING_REQUIRED NO)
  13     set(CMAKE_XCODE_ATTRIBUTE_CODE_SIGNING_ALLOWED NO)
  14 endif()
  15
  16 if(CMAKE_SYSTEM_NAME STREQUAL "iOS")
  17     # Fix compile failure with armv7 deployment target >= 11.0, xcode clang
  18     # will report:
  19     # error: invalid iOS deployment version '--target=armv7-apple-ios13.6',
  20     # iOS 10 is the maximum deployment target for 32-bit targets
  21     # If CMAKE_OSX_DEPLOYMENT_TARGET is not defined, cmake will choose latest
  22     # deployment target
  23     if("${CMAKE_OSX_ARCHITECTURES}" MATCHES ".*armv7.*")
  24         if(NOT DEFINED CMAKE_OSX_DEPLOYMENT_TARGET
  25             OR NOT CMAKE_OSX_DEPLOYMENT_TARGET VERSION_LESS "11.0")
  26             message(STATUS "Forcing iOS deployment target to 10.0 for armv7")
  27             set(CMAKE_OSX_DEPLOYMENT_TARGET "10.0" CACHE STRING "Minimum OS X deployment version"
  28                 FORCE)
  29         endif()
  30     endif()
  31 endif()
  32
  33 set(CMAKE_C_VISIBILITY_PRESET hidden)
  34 set(CMAKE_CXX_VISIBILITY_PRESET hidden)
  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++14.
  80     CXX_STANDARD 14
  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
 102
 103 option(ALSOFT_DLOPEN  "Check for the dlopen API for loading optional libs"  ON)
 104
 105 option(ALSOFT_WERROR  "Treat compile warnings as errors"      OFF)
 106
 107 option(ALSOFT_UTILS "Build utility programs"  ON)
 108 option(ALSOFT_NO_CONFIG_UTIL "Disable building the alsoft-config utility" OFF)
 109
 110 option(ALSOFT_EXAMPLES  "Build example programs"  ON)
 111
 112 option(ALSOFT_INSTALL "Install main library" ON)
 113 option(ALSOFT_INSTALL_CONFIG "Install alsoft.conf sample configuration file" ON)
 114 option(ALSOFT_INSTALL_HRTF_DATA "Install HRTF data files" ON)
 115 option(ALSOFT_INSTALL_AMBDEC_PRESETS "Install AmbDec preset files" ON)
 116 option(ALSOFT_INSTALL_EXAMPLES "Install example programs (alplay, alstream, ...)" ON)
 117 option(ALSOFT_INSTALL_UTILS "Install utility programs (openal-info, alsoft-config, ...)" ON)
 118 option(ALSOFT_UPDATE_BUILD_VERSION "Update git build version info" ON)
 119
 120 option(ALSOFT_EAX "Enable legacy EAX extensions" ${WIN32})
 121
 122 option(ALSOFT_SEARCH_INSTALL_DATADIR "Search the installation data directory" OFF)
 123 if(ALSOFT_SEARCH_INSTALL_DATADIR)
 124     set(ALSOFT_INSTALL_DATADIR ${CMAKE_INSTALL_FULL_DATADIR})
 125 endif()
 126
 127 if(DEFINED SHARE_INSTALL_DIR)
 128     message(WARNING "SHARE_INSTALL_DIR is deprecated.  Use the variables provided by the GNUInstallDirs module instead")
 129     set(CMAKE_INSTALL_DATADIR "${SHARE_INSTALL_DIR}")
 130 endif()
 131
 132 if(DEFINED LIB_SUFFIX)
 133     message(WARNING "LIB_SUFFIX is deprecated.  Use the variables provided by the GNUInstallDirs module instead")
 134 endif()
 135 if(DEFINED ALSOFT_CONFIG)
 136     message(WARNING "ALSOFT_CONFIG is deprecated. Use ALSOFT_INSTALL_CONFIG instead")
 137 endif()
 138 if(DEFINED ALSOFT_HRTF_DEFS)
 139     message(WARNING "ALSOFT_HRTF_DEFS is deprecated. Use ALSOFT_INSTALL_HRTF_DATA instead")
 140 endif()
 141 if(DEFINED ALSOFT_AMBDEC_PRESETS)
 142     message(WARNING "ALSOFT_AMBDEC_PRESETS is deprecated. Use ALSOFT_INSTALL_AMBDEC_PRESETS instead")
 143 endif()
 144
 145
 146 set(CPP_DEFS ) # C pre-processor, not C++
 147 set(INC_PATHS )
 148 set(C_FLAGS )
 149 set(LINKER_FLAGS )
 150 set(EXTRA_LIBS )
 151
 152 if(WIN32)
 153     set(CPP_DEFS ${CPP_DEFS} _WIN32 NOMINMAX)
 154     if(MINGW)
 155         set(CPP_DEFS ${CPP_DEFS} __USE_MINGW_ANSI_STDIO)
 156     endif()
 157
 158     option(ALSOFT_BUILD_ROUTER  "Build the router (EXPERIMENTAL; creates OpenAL32.dll and soft_oal.dll)"  OFF)
 159     if(MINGW)
 160         option(ALSOFT_BUILD_IMPORT_LIB "Build an import .lib using dlltool (requires sed)" ON)
 161     endif()
 162 elseif(APPLE)
 163     option(ALSOFT_OSX_FRAMEWORK "Build as macOS framework" OFF)
 164 endif()
 165
 166
 167 # QNX's gcc do not uses /usr/include and /usr/lib pathes by default
 168 if("${CMAKE_C_PLATFORM_ID}" STREQUAL "QNX")
 169     set(INC_PATHS ${INC_PATHS} /usr/include)
 170     set(LINKER_FLAGS ${LINKER_FLAGS} -L/usr/lib)
 171 endif()
 172
 173 # When the library is built for static linking, apps should define
 174 # AL_LIBTYPE_STATIC when including the AL headers.
 175 if(NOT LIBTYPE)
 176     set(LIBTYPE SHARED)
 177 endif()
 178
 179 set(LIB_MAJOR_VERSION "1")
 180 set(LIB_MINOR_VERSION "23")
 181 set(LIB_REVISION "0")
 182 set(LIB_VERSION "${LIB_MAJOR_VERSION}.${LIB_MINOR_VERSION}.${LIB_REVISION}")
 183 set(LIB_VERSION_NUM ${LIB_MAJOR_VERSION},${LIB_MINOR_VERSION},${LIB_REVISION},0)
 184
 185 set(EXPORT_DECL "")
 186
 187
 188 if(NOT WIN32)
 189     # Check if _POSIX_C_SOURCE and _XOPEN_SOURCE needs to be set for POSIX functions
 190     check_symbol_exists(posix_memalign stdlib.h HAVE_POSIX_MEMALIGN_DEFAULT)
 191     if(NOT HAVE_POSIX_MEMALIGN_DEFAULT)
 192         set(OLD_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
 193         set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -D_POSIX_C_SOURCE=200112L -D_XOPEN_SOURCE=600")
 194         check_symbol_exists(posix_memalign stdlib.h HAVE_POSIX_MEMALIGN_POSIX)
 195         if(NOT HAVE_POSIX_MEMALIGN_POSIX)
 196             set(CMAKE_REQUIRED_FLAGS ${OLD_REQUIRED_FLAGS})
 197         else()
 198             set(CPP_DEFS ${CPP_DEFS} _POSIX_C_SOURCE=200112L _XOPEN_SOURCE=600)
 199         endif()
 200     endif()
 201     unset(OLD_REQUIRED_FLAGS)
 202 endif()
 203
 204 # C99 has restrict, but C++ does not, so we can only utilize __restrict.
 205 check_cxx_source_compiles("int *__restrict foo;
 206 int main() { return 0; }" HAVE___RESTRICT)
 207 if(HAVE___RESTRICT)
 208     set(CPP_DEFS ${CPP_DEFS} RESTRICT=__restrict)
 209 else()
 210     set(CPP_DEFS ${CPP_DEFS} "RESTRICT=")
 211 endif()
 212
 213 # Some systems may need libatomic for atomic functions to work
 214 set(OLD_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
 215 set(CMAKE_REQUIRED_LIBRARIES ${OLD_REQUIRED_LIBRARIES} atomic)
 216 check_cxx_source_compiles("#include <atomic>
 217 std::atomic<int> foo{0};
 218 int main() { return foo.fetch_add(2); }"
 219 HAVE_LIBATOMIC)
 220 if(NOT HAVE_LIBATOMIC)
 221     set(CMAKE_REQUIRED_LIBRARIES "${OLD_REQUIRED_LIBRARIES}")
 222 else()
 223     set(EXTRA_LIBS atomic ${EXTRA_LIBS})
 224 endif()
 225 unset(OLD_REQUIRED_LIBRARIES)
 226
 227 if(ANDROID)
 228     # Include liblog for Android logging
 229     check_library_exists(log __android_log_print "" HAVE_LIBLOG)
 230     if(HAVE_LIBLOG)
 231         set(EXTRA_LIBS log ${EXTRA_LIBS})
 232         set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} log)
 233     endif()
 234 endif()
 235
 236 if(MSVC)
 237     set(CPP_DEFS ${CPP_DEFS} _CRT_SECURE_NO_WARNINGS)
 238     check_cxx_compiler_flag(/permissive- HAVE_PERMISSIVE_SWITCH)
 239     if(HAVE_PERMISSIVE_SWITCH)
 240         set(C_FLAGS ${C_FLAGS} $<$<COMPILE_LANGUAGE:CXX>:/permissive->)
 241     endif()
 242     set(C_FLAGS ${C_FLAGS} /W4 /w14640 /wd4065 /wd4127 /wd4268 /wd4324 /wd5030 /wd5051)
 243
 244     if(NOT DXSDK_DIR)
 245         string(REGEX REPLACE "\\\\" "/" DXSDK_DIR "$ENV{DXSDK_DIR}")
 246     else()
 247         string(REGEX REPLACE "\\\\" "/" DXSDK_DIR "${DXSDK_DIR}")
 248     endif()
 249     if(DXSDK_DIR)
 250         message(STATUS "Using DirectX SDK directory: ${DXSDK_DIR}")
 251     endif()
 252
 253     option(FORCE_STATIC_VCRT "Force /MT for static VC runtimes" OFF)
 254     if(FORCE_STATIC_VCRT)
 255         foreach(flag_var
 256                 CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
 257                 CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
 258                 CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
 259                 CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
 260             if(${flag_var} MATCHES "/MD")
 261                 string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
 262             endif()
 263         endforeach(flag_var)
 264     endif()
 265 else()
 266     set(C_FLAGS ${C_FLAGS} -Winline -Wunused -Wall -Wextra -Wshadow -Wconversion -Wcast-align
 267         -Wpedantic
 268         $<$<COMPILE_LANGUAGE:CXX>:-Wold-style-cast -Wnon-virtual-dtor -Woverloaded-virtual>)
 269
 270     check_cxx_compiler_flag(-Wno-c++20-attribute-extensions HAVE_WNO_CXX20_ATTR_EXT)
 271     if(HAVE_WNO_CXX20_ATTR_EXT)
 272         set(C_FLAGS ${C_FLAGS} $<$<COMPILE_LANGUAGE:CXX>:-Wno-c++20-attribute-extensions>)
 273     else()
 274         check_cxx_compiler_flag(-Wno-c++20-extensions HAVE_WNO_CXX20_EXT)
 275         if(HAVE_WNO_CXX20_EXT)
 276             set(C_FLAGS ${C_FLAGS} $<$<COMPILE_LANGUAGE:CXX>:-Wno-c++20-extensions>)
 277         endif()
 278     endif()
 279
 280     if(ALSOFT_WERROR)
 281         set(C_FLAGS ${C_FLAGS} -Werror)
 282     endif()
 283
 284     # We want RelWithDebInfo to actually include debug stuff (define _DEBUG
 285     # instead of NDEBUG)
 286     foreach(flag_var  CMAKE_C_FLAGS_RELWITHDEBINFO CMAKE_CXX_FLAGS_RELWITHDEBINFO)
 287         if(${flag_var} MATCHES "-DNDEBUG")
 288             string(REGEX REPLACE "-DNDEBUG" "-D_DEBUG" ${flag_var} "${${flag_var}}")
 289         endif()
 290     endforeach()
 291
 292     check_c_compiler_flag(-fno-math-errno HAVE_FNO_MATH_ERRNO)
 293     if(HAVE_FNO_MATH_ERRNO)
 294         set(C_FLAGS ${C_FLAGS} -fno-math-errno)
 295     endif()
 296
 297     option(ALSOFT_STATIC_LIBGCC "Force -static-libgcc for static GCC runtimes" OFF)
 298     if(ALSOFT_STATIC_LIBGCC)
 299         set(OLD_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
 300         set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} -static-libgcc)
 301         check_cxx_source_compiles("int main() { }" HAVE_STATIC_LIBGCC_SWITCH)
 302         set(CMAKE_REQUIRED_LIBRARIES ${OLD_REQUIRED_LIBRARIES})
 303         unset(OLD_REQUIRED_LIBRARIES)
 304
 305         if(NOT HAVE_STATIC_LIBGCC_SWITCH)
 306             message(FATAL_ERROR "Cannot static link libgcc")
 307         endif()
 308         set(LINKER_FLAGS ${LINKER_FLAGS} -static-libgcc)
 309     endif()
 310
 311     option(ALSOFT_STATIC_STDCXX "Static link libstdc++" OFF)
 312     if(ALSOFT_STATIC_STDCXX)
 313         set(OLD_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
 314         set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} "-Wl,--push-state,-Bstatic,-lstdc++,--pop-state")
 315         check_cxx_source_compiles("int main() { }" HAVE_STATIC_LIBSTDCXX_SWITCH)
 316         set(CMAKE_REQUIRED_LIBRARIES ${OLD_REQUIRED_LIBRARIES})
 317         unset(OLD_REQUIRED_LIBRARIES)
 318
 319         if(NOT HAVE_STATIC_LIBSTDCXX_SWITCH)
 320             message(FATAL_ERROR "Cannot static link libstdc++")
 321         endif()
 322         set(LINKER_FLAGS ${LINKER_FLAGS} "-Wl,--push-state,-Bstatic,-lstdc++,--pop-state")
 323     endif()
 324
 325     if(WIN32)
 326         option(ALSOFT_STATIC_WINPTHREAD "Static link libwinpthread" OFF)
 327         if(ALSOFT_STATIC_WINPTHREAD)
 328             set(OLD_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
 329             set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} "-Wl,--push-state,-Bstatic,-lwinpthread,--pop-state")
 330             check_cxx_source_compiles("int main() { }" HAVE_STATIC_LIBWINPTHREAD_SWITCH)
 331             set(CMAKE_REQUIRED_LIBRARIES ${OLD_REQUIRED_LIBRARIES})
 332             unset(OLD_REQUIRED_LIBRARIES)
 333
 334             if(NOT HAVE_STATIC_LIBWINPTHREAD_SWITCH)
 335                 message(FATAL_ERROR "Cannot static link libwinpthread")
 336             endif()
 337             set(LINKER_FLAGS ${LINKER_FLAGS} "-Wl,--push-state,-Bstatic,-lwinpthread,--pop-state")
 338         endif()
 339     endif()
 340 endif()
 341
 342 # Set visibility/export options if available
 343 if(WIN32)
 344     if(NOT LIBTYPE STREQUAL "STATIC")
 345         set(EXPORT_DECL "__declspec(dllexport)")
 346     endif()
 347 else()
 348     set(OLD_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
 349     # Yes GCC, really don't accept visibility modes you don't support
 350     set(CMAKE_REQUIRED_FLAGS "${OLD_REQUIRED_FLAGS} -Wattributes -Werror")
 351
 352     check_c_source_compiles("int foo() __attribute__((visibility(\"protected\")));
 353                              int main() {return 0;}" HAVE_GCC_PROTECTED_VISIBILITY)
 354     if(HAVE_GCC_PROTECTED_VISIBILITY)
 355         if(NOT LIBTYPE STREQUAL "STATIC")
 356             set(EXPORT_DECL "__attribute__((visibility(\"protected\")))")
 357         endif()
 358     else()
 359         check_c_source_compiles("int foo() __attribute__((visibility(\"default\")));
 360                                  int main() {return 0;}" HAVE_GCC_DEFAULT_VISIBILITY)
 361         if(HAVE_GCC_DEFAULT_VISIBILITY)
 362             if(NOT LIBTYPE STREQUAL "STATIC")
 363                 set(EXPORT_DECL "__attribute__((visibility(\"default\")))")
 364             endif()
 365         endif()
 366     endif()
 367
 368     set(CMAKE_REQUIRED_FLAGS "${OLD_REQUIRED_FLAGS}")
 369 endif()
 370
 371
 372 set(SSE2_SWITCH "")
 373
 374 if(NOT MSVC)
 375     set(OLD_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
 376     # Yes GCC, really don't accept command line options you don't support
 377     set(CMAKE_REQUIRED_FLAGS "${OLD_REQUIRED_FLAGS} -Werror")
 378     check_c_compiler_flag(-msse2 HAVE_MSSE2_SWITCH)
 379     if(HAVE_MSSE2_SWITCH)
 380         set(SSE2_SWITCH "-msse2")
 381     endif()
 382     set(CMAKE_REQUIRED_FLAGS ${OLD_REQUIRED_FLAGS})
 383     unset(OLD_REQUIRED_FLAGS)
 384 endif()
 385
 386 check_include_file(xmmintrin.h HAVE_XMMINTRIN_H)
 387 check_include_file(emmintrin.h HAVE_EMMINTRIN_H)
 388 check_include_file(pmmintrin.h HAVE_PMMINTRIN_H)
 389 check_include_file(smmintrin.h HAVE_SMMINTRIN_H)
 390 check_include_file(arm_neon.h HAVE_ARM_NEON_H)
 391
 392 set(HAVE_SSE        0)
 393 set(HAVE_SSE2       0)
 394 set(HAVE_SSE3       0)
 395 set(HAVE_SSE4_1     0)
 396 set(HAVE_NEON       0)
 397
 398 # Check for SSE support
 399 option(ALSOFT_REQUIRE_SSE "Require SSE support" OFF)
 400 if(HAVE_XMMINTRIN_H)
 401     option(ALSOFT_CPUEXT_SSE "Enable SSE support" ON)
 402     if(ALSOFT_CPUEXT_SSE)
 403         set(HAVE_SSE 1)
 404     endif()
 405 endif()
 406 if(ALSOFT_REQUIRE_SSE AND NOT HAVE_SSE)
 407     message(FATAL_ERROR "Failed to enabled required SSE CPU extensions")
 408 endif()
 409
 410 option(ALSOFT_REQUIRE_SSE2 "Require SSE2 support" OFF)
 411 if(HAVE_EMMINTRIN_H)
 412     option(ALSOFT_CPUEXT_SSE2 "Enable SSE2 support" ON)
 413     if(HAVE_SSE AND ALSOFT_CPUEXT_SSE2)
 414         set(HAVE_SSE2 1)
 415     endif()
 416 endif()
 417 if(ALSOFT_REQUIRE_SSE2 AND NOT HAVE_SSE2)
 418     message(FATAL_ERROR "Failed to enable required SSE2 CPU extensions")
 419 endif()
 420
 421 option(ALSOFT_REQUIRE_SSE3 "Require SSE3 support" OFF)
 422 if(HAVE_PMMINTRIN_H)
 423     option(ALSOFT_CPUEXT_SSE3 "Enable SSE3 support" ON)
 424     if(HAVE_SSE2 AND ALSOFT_CPUEXT_SSE3)
 425         set(HAVE_SSE3 1)
 426     endif()
 427 endif()
 428 if(ALSOFT_REQUIRE_SSE3 AND NOT HAVE_SSE3)
 429     message(FATAL_ERROR "Failed to enable required SSE3 CPU extensions")
 430 endif()
 431
 432 option(ALSOFT_REQUIRE_SSE4_1 "Require SSE4.1 support" OFF)
 433 if(HAVE_SMMINTRIN_H)
 434     option(ALSOFT_CPUEXT_SSE4_1 "Enable SSE4.1 support" ON)
 435     if(HAVE_SSE3 AND ALSOFT_CPUEXT_SSE4_1)
 436         set(HAVE_SSE4_1 1)
 437     endif()
 438 endif()
 439 if(ALSOFT_REQUIRE_SSE4_1 AND NOT HAVE_SSE4_1)
 440     message(FATAL_ERROR "Failed to enable required SSE4.1 CPU extensions")
 441 endif()
 442
 443 # Check for ARM Neon support
 444 option(ALSOFT_REQUIRE_NEON "Require ARM NEON support" OFF)
 445 if(HAVE_ARM_NEON_H)
 446     option(ALSOFT_CPUEXT_NEON "Enable ARM NEON support" ON)
 447     if(ALSOFT_CPUEXT_NEON)
 448         check_c_source_compiles("#include <arm_neon.h>
 449             int main()
 450             {
 451                 int32x4_t ret4 = vdupq_n_s32(0);
 452                 return vgetq_lane_s32(ret4, 0);
 453             }" HAVE_NEON_INTRINSICS)
 454         if(HAVE_NEON_INTRINSICS)
 455             set(HAVE_NEON 1)
 456         endif()
 457     endif()
 458 endif()
 459 if(ALSOFT_REQUIRE_NEON AND NOT HAVE_NEON)
 460     message(FATAL_ERROR "Failed to enabled required ARM NEON CPU extensions")
 461 endif()
 462
 463
 464 set(SSE_FLAGS )
 465 set(FPMATH_SET "0")
 466 if(CMAKE_SIZEOF_VOID_P MATCHES "4" AND HAVE_SSE2)
 467     option(ALSOFT_ENABLE_SSE2_CODEGEN "Enable SSE2 code generation instead of x87 for 32-bit targets." TRUE)
 468     if(ALSOFT_ENABLE_SSE2_CODEGEN)
 469         if(MSVC)
 470             check_c_compiler_flag("/arch:SSE2" HAVE_ARCH_SSE2)
 471             if(HAVE_ARCH_SSE2)
 472                 set(SSE_FLAGS ${SSE_FLAGS} "/arch:SSE2")
 473                 set(C_FLAGS ${C_FLAGS} ${SSE_FLAGS})
 474                 set(FPMATH_SET 2)
 475             endif()
 476         elseif(SSE2_SWITCH)
 477             check_c_compiler_flag("${SSE2_SWITCH} -mfpmath=sse" HAVE_MFPMATH_SSE_2)
 478             if(HAVE_MFPMATH_SSE_2)
 479                 set(SSE_FLAGS ${SSE_FLAGS} ${SSE2_SWITCH} -mfpmath=sse)
 480                 set(C_FLAGS ${C_FLAGS} ${SSE_FLAGS})
 481                 set(FPMATH_SET 2)
 482             endif()
 483             # SSE depends on a 16-byte aligned stack, and by default, GCC
 484             # assumes the stack is suitably aligned. Older Linux code or other
 485             # OSs don't guarantee this on 32-bit, so externally-callable
 486             # functions need to ensure an aligned stack.
 487             set(EXPORT_DECL "${EXPORT_DECL}__attribute__((force_align_arg_pointer))")
 488         endif()
 489     endif()
 490 endif()
 491
 492 if(HAVE_SSE2)
 493     set(OLD_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
 494     foreach(flag_var ${SSE_FLAGS})
 495         set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${flag_var}")
 496     endforeach()
 497
 498     check_c_source_compiles("#include <emmintrin.h>
 499         int main() {_mm_pause(); return 0;}" HAVE_SSE_INTRINSICS)
 500
 501     set(CMAKE_REQUIRED_FLAGS ${OLD_REQUIRED_FLAGS})
 502 endif()
 503
 504
 505 check_include_file(malloc.h HAVE_MALLOC_H)
 506 check_include_file(cpuid.h HAVE_CPUID_H)
 507 check_include_file(intrin.h HAVE_INTRIN_H)
 508 check_include_file(guiddef.h HAVE_GUIDDEF_H)
 509 if(NOT HAVE_GUIDDEF_H)
 510     check_include_file(initguid.h HAVE_INITGUID_H)
 511 endif()
 512
 513 # Some systems need libm for some math functions to work
 514 set(MATH_LIB )
 515 check_library_exists(m pow "" HAVE_LIBM)
 516 if(HAVE_LIBM)
 517     set(MATH_LIB ${MATH_LIB} m)
 518     set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} m)
 519 endif()
 520
 521 # Some systems need to link with -lrt for clock_gettime as used by the common
 522 # eaxmple functions.
 523 set(RT_LIB )
 524 check_library_exists(rt clock_gettime "" HAVE_LIBRT)
 525 if(HAVE_LIBRT)
 526     set(RT_LIB rt)
 527 endif()
 528
 529 # Check for the dlopen API (for dynamicly loading backend libs)
 530 if(ALSOFT_DLOPEN)
 531     check_include_file(dlfcn.h HAVE_DLFCN_H)
 532     check_library_exists(dl dlopen "" HAVE_LIBDL)
 533     if(HAVE_LIBDL)
 534         set(EXTRA_LIBS dl ${EXTRA_LIBS})
 535         set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} dl)
 536     endif()
 537 endif()
 538
 539 # Check for a cpuid intrinsic
 540 if(HAVE_CPUID_H)
 541     check_c_source_compiles("#include <cpuid.h>
 542         int main()
 543         {
 544             unsigned int eax, ebx, ecx, edx;
 545             return __get_cpuid(0, &eax, &ebx, &ecx, &edx);
 546         }" HAVE_GCC_GET_CPUID)
 547 endif()
 548 if(HAVE_INTRIN_H)
 549     check_c_source_compiles("#include <intrin.h>
 550         int main()
 551         {
 552             int regs[4];
 553             __cpuid(regs, 0);
 554             return regs[0];
 555         }" HAVE_CPUID_INTRINSIC)
 556 endif()
 557
 558 check_symbol_exists(posix_memalign   stdlib.h HAVE_POSIX_MEMALIGN)
 559 check_symbol_exists(_aligned_malloc  malloc.h HAVE__ALIGNED_MALLOC)
 560 check_symbol_exists(proc_pidpath     libproc.h HAVE_PROC_PIDPATH)
 561
 562 if(NOT WIN32)
 563     # We need pthreads outside of Windows, for semaphores. It's also used to
 564     # set the priority and name of threads, when possible.
 565     check_include_file(pthread.h HAVE_PTHREAD_H)
 566     if(NOT HAVE_PTHREAD_H)
 567         message(FATAL_ERROR "PThreads is required for non-Windows builds!")
 568     endif()
 569
 570     check_c_compiler_flag(-pthread HAVE_PTHREAD)
 571     if(HAVE_PTHREAD)
 572         set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -pthread")
 573         set(C_FLAGS ${C_FLAGS} -pthread)
 574         set(LINKER_FLAGS ${LINKER_FLAGS} -pthread)
 575     endif()
 576
 577     check_symbol_exists(pthread_setschedparam pthread.h HAVE_PTHREAD_SETSCHEDPARAM)
 578
 579     # Some systems need pthread_np.h to get pthread_setname_np
 580     check_include_files("pthread.h;pthread_np.h" HAVE_PTHREAD_NP_H)
 581     if(HAVE_PTHREAD_NP_H)
 582         check_symbol_exists(pthread_setname_np "pthread.h;pthread_np.h" HAVE_PTHREAD_SETNAME_NP)
 583         if(NOT HAVE_PTHREAD_SETNAME_NP)
 584             check_symbol_exists(pthread_set_name_np "pthread.h;pthread_np.h" HAVE_PTHREAD_SET_NAME_NP)
 585         endif()
 586     else()
 587         check_symbol_exists(pthread_setname_np pthread.h HAVE_PTHREAD_SETNAME_NP)
 588         if(NOT HAVE_PTHREAD_SETNAME_NP)
 589             check_symbol_exists(pthread_set_name_np pthread.h HAVE_PTHREAD_SET_NAME_NP)
 590         endif()
 591     endif()
 592 endif()
 593
 594 check_symbol_exists(getopt unistd.h HAVE_GETOPT)
 595
 596
 597 # Common sources used by both the OpenAL implementation library, the OpenAL
 598 # router, and certain tools and examples.
 599 set(COMMON_OBJS
 600     common/albit.h
 601     common/albyte.h
 602     common/alcomplex.cpp
 603     common/alcomplex.h
 604     common/aldeque.h
 605     common/alfstream.cpp
 606     common/alfstream.h
 607     common/almalloc.cpp
 608     common/almalloc.h
 609     common/alnumbers.h
 610     common/alnumeric.h
 611     common/aloptional.h
 612     common/alspan.h
 613     common/alstring.cpp
 614     common/alstring.h
 615     common/altraits.h
 616     common/atomic.h
 617     common/comptr.h
 618     common/dynload.cpp
 619     common/dynload.h
 620     common/intrusive_ptr.h
 621     common/opthelpers.h
 622     common/phase_shifter.h
 623     common/polyphase_resampler.cpp
 624     common/polyphase_resampler.h
 625     common/pragmadefs.h
 626     common/ringbuffer.cpp
 627     common/ringbuffer.h
 628     common/strutils.cpp
 629     common/strutils.h
 630     common/threads.cpp
 631     common/threads.h
 632     common/vecmat.h
 633     common/vector.h)
 634
 635 # Core library routines
 636 set(CORE_OBJS
 637     core/ambdec.cpp
 638     core/ambdec.h
 639     core/ambidefs.cpp
 640     core/ambidefs.h
 641     core/async_event.h
 642     core/bformatdec.cpp
 643     core/bformatdec.h
 644     core/bs2b.cpp
 645     core/bs2b.h
 646     core/bsinc_defs.h
 647     core/bsinc_tables.cpp
 648     core/bsinc_tables.h
 649     core/bufferline.h
 650     core/buffer_storage.cpp
 651     core/buffer_storage.h
 652     core/context.cpp
 653     core/context.h
 654     core/converter.cpp
 655     core/converter.h
 656     core/cpu_caps.cpp
 657     core/cpu_caps.h
 658     core/cubic_defs.h
 659     core/cubic_tables.cpp
 660     core/cubic_tables.h
 661     core/devformat.cpp
 662     core/devformat.h
 663     core/device.cpp
 664     core/device.h
 665     core/effects/base.h
 666     core/effectslot.cpp
 667     core/effectslot.h
 668     core/except.cpp
 669     core/except.h
 670     core/filters/biquad.h
 671     core/filters/biquad.cpp
 672     core/filters/nfc.cpp
 673     core/filters/nfc.h
 674     core/filters/splitter.cpp
 675     core/filters/splitter.h
 676     core/fmt_traits.cpp
 677     core/fmt_traits.h
 678     core/fpu_ctrl.cpp
 679     core/fpu_ctrl.h
 680     core/front_stablizer.h
 681     core/helpers.cpp
 682     core/helpers.h
 683     core/hrtf.cpp
 684     core/hrtf.h
 685     core/logging.cpp
 686     core/logging.h
 687     core/mastering.cpp
 688     core/mastering.h
 689     core/mixer.cpp
 690     core/mixer.h
 691     core/resampler_limits.h
 692     core/uhjfilter.cpp
 693     core/uhjfilter.h
 694     core/uiddefs.cpp
 695     core/voice.cpp
 696     core/voice.h
 697     core/voice_change.h)
 698
 699 set(HAVE_RTKIT 0)
 700 if(NOT WIN32)
 701     option(ALSOFT_REQUIRE_RTKIT "Require RTKit/D-Bus support" FALSE)
 702     find_package(DBus1 QUIET)
 703     if(NOT DBus1_FOUND AND PkgConfig_FOUND)
 704         pkg_check_modules(DBUS dbus-1)
 705     endif()
 706     if(DBus1_FOUND OR DBUS_FOUND)
 707         option(ALSOFT_RTKIT "Enable RTKit support" ON)
 708         if(ALSOFT_RTKIT)
 709             set(HAVE_RTKIT 1)
 710             set(CORE_OBJS ${CORE_OBJS} core/dbus_wrap.cpp core/dbus_wrap.h
 711                 core/rtkit.cpp core/rtkit.h)
 712             if(NOT DBus1_FOUND)
 713                 set(INC_PATHS ${INC_PATHS} ${DBUS_INCLUDE_DIRS})
 714                 set(CPP_DEFS ${CPP_DEFS} ${DBUS_CFLAGS_OTHER})
 715                 if(NOT HAVE_DLFCN_H)
 716                     set(EXTRA_LIBS ${EXTRA_LIBS} ${DBUS_LINK_LIBRARIES})
 717                 endif()
 718             elseif(HAVE_DLFCN_H)
 719                 set(INC_PATHS ${INC_PATHS} ${DBus1_INCLUDE_DIRS})
 720                 set(CPP_DEFS ${CPP_DEFS} ${DBus1_DEFINITIONS})
 721             else()
 722                 set(EXTRA_LIBS ${EXTRA_LIBS} ${DBus1_LIBRARIES})
 723             endif()
 724         endif()
 725     else()
 726         set(MISSING_VARS "")
 727         if(NOT DBus1_INCLUDE_DIRS)
 728             set(MISSING_VARS "${MISSING_VARS} DBus1_INCLUDE_DIRS")
 729         endif()
 730         if(NOT DBus1_LIBRARIES)
 731             set(MISSING_VARS "${MISSING_VARS} DBus1_LIBRARIES")
 732         endif()
 733         message(STATUS "Could NOT find DBus1 (missing:${MISSING_VARS})")
 734         unset(MISSING_VARS)
 735     endif()
 736 endif()
 737 if(ALSOFT_REQUIRE_RTKIT AND NOT HAVE_RTKIT)
 738     message(FATAL_ERROR "Failed to enabled required RTKit support")
 739 endif()
 740
 741 # Default mixers, always available
 742 set(CORE_OBJS ${CORE_OBJS}
 743     core/mixer/defs.h
 744     core/mixer/hrtfbase.h
 745     core/mixer/hrtfdefs.h
 746     core/mixer/mixer_c.cpp)
 747
 748 # AL and related routines
 749 set(OPENAL_OBJS
 750     al/auxeffectslot.cpp
 751     al/auxeffectslot.h
 752     al/buffer.cpp
 753     al/buffer.h
 754     al/effect.cpp
 755     al/effect.h
 756     al/effects/autowah.cpp
 757     al/effects/chorus.cpp
 758     al/effects/compressor.cpp
 759     al/effects/convolution.cpp
 760     al/effects/dedicated.cpp
 761     al/effects/distortion.cpp
 762     al/effects/echo.cpp
 763         al/effects/effects.cpp
 764     al/effects/effects.h
 765     al/effects/equalizer.cpp
 766     al/effects/fshifter.cpp
 767     al/effects/modulator.cpp
 768     al/effects/null.cpp
 769     al/effects/pshifter.cpp
 770     al/effects/reverb.cpp
 771     al/effects/vmorpher.cpp
 772     al/error.cpp
 773     al/event.cpp
 774     al/event.h
 775     al/extension.cpp
 776     al/filter.cpp
 777     al/filter.h
 778     al/listener.cpp
 779     al/listener.h
 780     al/source.cpp
 781     al/source.h
 782     al/state.cpp)
 783
 784 # ALC and related routines
 785 set(ALC_OBJS
 786     alc/alc.cpp
 787     alc/alu.cpp
 788     alc/alu.h
 789     alc/alconfig.cpp
 790     alc/alconfig.h
 791     alc/context.cpp
 792     alc/context.h
 793     alc/device.cpp
 794     alc/device.h
 795     alc/effects/base.h
 796     alc/effects/autowah.cpp
 797     alc/effects/chorus.cpp
 798     alc/effects/compressor.cpp
 799     alc/effects/convolution.cpp
 800     alc/effects/dedicated.cpp
 801     alc/effects/distortion.cpp
 802     alc/effects/echo.cpp
 803     alc/effects/equalizer.cpp
 804     alc/effects/fshifter.cpp
 805     alc/effects/modulator.cpp
 806     alc/effects/null.cpp
 807     alc/effects/pshifter.cpp
 808     alc/effects/reverb.cpp
 809     alc/effects/vmorpher.cpp
 810     alc/inprogext.h
 811     alc/panning.cpp)
 812
 813 if (ALSOFT_EAX)
 814     set(OPENAL_OBJS
 815         ${OPENAL_OBJS}
 816         al/eax/api.cpp
 817         al/eax/api.h
 818         al/eax/call.cpp
 819         al/eax/call.h
 820         al/eax/effect.h
 821         al/eax/exception.cpp
 822         al/eax/exception.h
 823         al/eax/fx_slot_index.cpp
 824         al/eax/fx_slot_index.h
 825         al/eax/fx_slots.cpp
 826         al/eax/fx_slots.h
 827         al/eax/globals.cpp
 828         al/eax/globals.h
 829         al/eax/utils.cpp
 830         al/eax/utils.h
 831         al/eax/x_ram.h
 832 )
 833 endif ()
 834
 835 # Include SIMD mixers
 836 set(CPU_EXTS "Default")
 837 if(HAVE_SSE)
 838     set(CORE_OBJS  ${CORE_OBJS} core/mixer/mixer_sse.cpp)
 839     set(CPU_EXTS "${CPU_EXTS}, SSE")
 840 endif()
 841 if(HAVE_SSE2)
 842     set(CORE_OBJS  ${CORE_OBJS} core/mixer/mixer_sse2.cpp)
 843     set(CPU_EXTS "${CPU_EXTS}, SSE2")
 844 endif()
 845 if(HAVE_SSE3)
 846     set(CORE_OBJS  ${CORE_OBJS} core/mixer/mixer_sse3.cpp)
 847     set(CPU_EXTS "${CPU_EXTS}, SSE3")
 848 endif()
 849 if(HAVE_SSE4_1)
 850     set(CORE_OBJS  ${CORE_OBJS} core/mixer/mixer_sse41.cpp)
 851     set(CPU_EXTS "${CPU_EXTS}, SSE4.1")
 852 endif()
 853 if(HAVE_NEON)
 854     set(CORE_OBJS  ${CORE_OBJS} core/mixer/mixer_neon.cpp)
 855     set(CPU_EXTS "${CPU_EXTS}, Neon")
 856 endif()
 857
 858
 859 set(HAVE_ALSA       0)
 860 set(HAVE_OSS        0)
 861 set(HAVE_PIPEWIRE   0)
 862 set(HAVE_SOLARIS    0)
 863 set(HAVE_SNDIO      0)
 864 set(HAVE_DSOUND     0)
 865 set(HAVE_WASAPI     0)
 866 set(HAVE_WINMM      0)
 867 set(HAVE_PORTAUDIO  0)
 868 set(HAVE_PULSEAUDIO 0)
 869 set(HAVE_COREAUDIO  0)
 870 set(HAVE_OPENSL     0)
 871 set(HAVE_OBOE       0)
 872 set(HAVE_WAVE       0)
 873 set(HAVE_SDL2       0)
 874
 875 if(WIN32 OR HAVE_DLFCN_H)
 876     set(IS_LINKED "")
 877     macro(ADD_BACKEND_LIBS _LIBS)
 878     endmacro()
 879 else()
 880     set(IS_LINKED " (linked)")
 881     macro(ADD_BACKEND_LIBS _LIBS)
 882         set(EXTRA_LIBS ${_LIBS} ${EXTRA_LIBS})
 883     endmacro()
 884 endif()
 885
 886 set(BACKENDS "")
 887 set(ALC_OBJS  ${ALC_OBJS}
 888     alc/backends/base.cpp
 889     alc/backends/base.h
 890     # Default backends, always available
 891     alc/backends/loopback.cpp
 892     alc/backends/loopback.h
 893     alc/backends/null.cpp
 894     alc/backends/null.h
 895 )
 896
 897 # Check ALSA backend
 898 option(ALSOFT_REQUIRE_ALSA "Require ALSA backend" OFF)
 899 find_package(ALSA)
 900 if(ALSA_FOUND)
 901     option(ALSOFT_BACKEND_ALSA "Enable ALSA backend" ON)
 902     if(ALSOFT_BACKEND_ALSA)
 903         set(HAVE_ALSA 1)
 904         set(BACKENDS  "${BACKENDS} ALSA${IS_LINKED},")
 905         set(ALC_OBJS  ${ALC_OBJS} alc/backends/alsa.cpp alc/backends/alsa.h)
 906         add_backend_libs(${ALSA_LIBRARIES})
 907         set(INC_PATHS ${INC_PATHS} ${ALSA_INCLUDE_DIRS})
 908     endif()
 909 endif()
 910 if(ALSOFT_REQUIRE_ALSA AND NOT HAVE_ALSA)
 911     message(FATAL_ERROR "Failed to enabled required ALSA backend")
 912 endif()
 913
 914 # Check OSS backend
 915 option(ALSOFT_REQUIRE_OSS "Require OSS backend" OFF)
 916 find_package(OSS)
 917 if(OSS_FOUND)
 918     option(ALSOFT_BACKEND_OSS "Enable OSS backend" ON)
 919     if(ALSOFT_BACKEND_OSS)
 920         set(HAVE_OSS 1)
 921         set(BACKENDS  "${BACKENDS} OSS,")
 922         set(ALC_OBJS  ${ALC_OBJS} alc/backends/oss.cpp alc/backends/oss.h)
 923         if(OSS_LIBRARIES)
 924             set(EXTRA_LIBS ${OSS_LIBRARIES} ${EXTRA_LIBS})
 925         endif()
 926         set(INC_PATHS ${INC_PATHS} ${OSS_INCLUDE_DIRS})
 927     endif()
 928 endif()
 929 if(ALSOFT_REQUIRE_OSS AND NOT HAVE_OSS)
 930     message(FATAL_ERROR "Failed to enabled required OSS backend")
 931 endif()
 932
 933 # Check PipeWire backend
 934 option(ALSOFT_REQUIRE_PIPEWIRE "Require PipeWire backend" OFF)
 935 if(PkgConfig_FOUND)
 936     pkg_check_modules(PIPEWIRE libpipewire-0.3>=0.3.23)
 937     if(PIPEWIRE_FOUND)
 938         option(ALSOFT_BACKEND_PIPEWIRE "Enable PipeWire backend" ON)
 939         if(ALSOFT_BACKEND_PIPEWIRE)
 940             set(HAVE_PIPEWIRE 1)
 941             set(BACKENDS  "${BACKENDS} PipeWire${IS_LINKED},")
 942             set(ALC_OBJS  ${ALC_OBJS} alc/backends/pipewire.cpp alc/backends/pipewire.h)
 943             add_backend_libs(${PIPEWIRE_LIBRARIES})
 944             set(INC_PATHS ${INC_PATHS} ${PIPEWIRE_INCLUDE_DIRS})
 945         endif()
 946     endif()
 947 endif()
 948 if(ALSOFT_REQUIRE_PIPEWIRE AND NOT HAVE_PIPEWIRE)
 949     message(FATAL_ERROR "Failed to enabled required PipeWire backend")
 950 endif()
 951
 952 # Check Solaris backend
 953 option(ALSOFT_REQUIRE_SOLARIS "Require Solaris backend" OFF)
 954 find_package(AudioIO)
 955 if(AUDIOIO_FOUND)
 956     option(ALSOFT_BACKEND_SOLARIS "Enable Solaris backend" ON)
 957     if(ALSOFT_BACKEND_SOLARIS)
 958         set(HAVE_SOLARIS 1)
 959         set(BACKENDS  "${BACKENDS} Solaris,")
 960         set(ALC_OBJS  ${ALC_OBJS} alc/backends/solaris.cpp alc/backends/solaris.h)
 961         set(INC_PATHS ${INC_PATHS} ${AUDIOIO_INCLUDE_DIRS})
 962     endif()
 963 endif()
 964 if(ALSOFT_REQUIRE_SOLARIS AND NOT HAVE_SOLARIS)
 965     message(FATAL_ERROR "Failed to enabled required Solaris backend")
 966 endif()
 967
 968 # Check SndIO backend
 969 option(ALSOFT_REQUIRE_SNDIO "Require SndIO backend" OFF)
 970 find_package(SoundIO)
 971 if(SOUNDIO_FOUND)
 972     option(ALSOFT_BACKEND_SNDIO "Enable SndIO backend" ON)
 973     if(ALSOFT_BACKEND_SNDIO)
 974         set(HAVE_SNDIO 1)
 975         set(BACKENDS  "${BACKENDS} SndIO (linked),")
 976         set(ALC_OBJS  ${ALC_OBJS} alc/backends/sndio.cpp alc/backends/sndio.h)
 977         set(EXTRA_LIBS ${SOUNDIO_LIBRARIES} ${EXTRA_LIBS})
 978         set(INC_PATHS ${INC_PATHS} ${SOUNDIO_INCLUDE_DIRS})
 979     endif()
 980 endif()
 981 if(ALSOFT_REQUIRE_SNDIO AND NOT HAVE_SNDIO)
 982     message(FATAL_ERROR "Failed to enabled required SndIO backend")
 983 endif()
 984
 985 # Check Windows-only backends
 986 option(ALSOFT_REQUIRE_WINMM "Require Windows Multimedia backend" OFF)
 987 option(ALSOFT_REQUIRE_DSOUND "Require DirectSound backend" OFF)
 988 option(ALSOFT_REQUIRE_WASAPI "Require WASAPI backend" OFF)
 989 if(WIN32)
 990     # Check MMSystem backend
 991     option(ALSOFT_BACKEND_WINMM "Enable Windows Multimedia backend" ON)
 992     if(ALSOFT_BACKEND_WINMM)
 993         set(HAVE_WINMM 1)
 994         set(BACKENDS "${BACKENDS} WinMM,")
 995         set(ALC_OBJS ${ALC_OBJS} alc/backends/winmm.cpp alc/backends/winmm.h)
 996         # There doesn't seem to be good way to search for winmm.lib for MSVC.
 997         # find_library doesn't find it without being told to look in a specific
 998         # place in the WindowsSDK, but it links anyway. If there ends up being
 999         # Windows targets without this, another means to detect it is needed.
1000         set(EXTRA_LIBS winmm ${EXTRA_LIBS})
1001     endif()
1002
1003     # Check DSound backend
1004     check_include_file(dsound.h HAVE_DSOUND_H)
1005     if(DXSDK_DIR)
1006         find_path(DSOUND_INCLUDE_DIR NAMES "dsound.h"
1007             PATHS "${DXSDK_DIR}" PATH_SUFFIXES include
1008             DOC "The DirectSound include directory")
1009     endif()
1010     if(HAVE_DSOUND_H OR DSOUND_INCLUDE_DIR)
1011         option(ALSOFT_BACKEND_DSOUND "Enable DirectSound backend" ON)
1012         if(ALSOFT_BACKEND_DSOUND)
1013             set(HAVE_DSOUND 1)
1014             set(BACKENDS "${BACKENDS} DirectSound,")
1015             set(ALC_OBJS ${ALC_OBJS} alc/backends/dsound.cpp alc/backends/dsound.h)
1016
1017             if(NOT HAVE_DSOUND_H)
1018                 set(INC_PATHS ${INC_PATHS} ${DSOUND_INCLUDE_DIR})
1019             endif()
1020         endif()
1021     endif()
1022
1023     # Check for WASAPI backend
1024     check_include_file(mmdeviceapi.h HAVE_MMDEVICEAPI_H)
1025     if(HAVE_MMDEVICEAPI_H)
1026         option(ALSOFT_BACKEND_WASAPI "Enable WASAPI backend" ON)
1027         if(ALSOFT_BACKEND_WASAPI)
1028             set(HAVE_WASAPI 1)
1029             set(BACKENDS  "${BACKENDS} WASAPI,")
1030             set(ALC_OBJS  ${ALC_OBJS} alc/backends/wasapi.cpp alc/backends/wasapi.h)
1031         endif()
1032     endif()
1033 endif()
1034 if(ALSOFT_REQUIRE_WINMM AND NOT HAVE_WINMM)
1035     message(FATAL_ERROR "Failed to enabled required WinMM backend")
1036 endif()
1037 if(ALSOFT_REQUIRE_DSOUND AND NOT HAVE_DSOUND)
1038     message(FATAL_ERROR "Failed to enabled required DSound backend")
1039 endif()
1040 if(ALSOFT_REQUIRE_WASAPI AND NOT HAVE_WASAPI)
1041     message(FATAL_ERROR "Failed to enabled required WASAPI backend")
1042 endif()
1043
1044 # Check PortAudio backend
1045 option(ALSOFT_REQUIRE_PORTAUDIO "Require PortAudio backend" OFF)
1046 find_package(PortAudio)
1047 if(PORTAUDIO_FOUND)
1048     option(ALSOFT_BACKEND_PORTAUDIO "Enable PortAudio backend" ON)
1049     if(ALSOFT_BACKEND_PORTAUDIO)
1050         set(HAVE_PORTAUDIO 1)
1051         set(BACKENDS  "${BACKENDS} PortAudio${IS_LINKED},")
1052         set(ALC_OBJS  ${ALC_OBJS} alc/backends/portaudio.cpp alc/backends/portaudio.h)
1053         add_backend_libs(${PORTAUDIO_LIBRARIES})
1054         set(INC_PATHS ${INC_PATHS} ${PORTAUDIO_INCLUDE_DIRS})
1055     endif()
1056 endif()
1057 if(ALSOFT_REQUIRE_PORTAUDIO AND NOT HAVE_PORTAUDIO)
1058     message(FATAL_ERROR "Failed to enabled required PortAudio backend")
1059 endif()
1060
1061 # Check PulseAudio backend
1062 option(ALSOFT_REQUIRE_PULSEAUDIO "Require PulseAudio backend" OFF)
1063 find_package(PulseAudio)
1064 if(PULSEAUDIO_FOUND)
1065     option(ALSOFT_BACKEND_PULSEAUDIO "Enable PulseAudio backend" ON)
1066     if(ALSOFT_BACKEND_PULSEAUDIO)
1067         set(HAVE_PULSEAUDIO 1)
1068         set(BACKENDS  "${BACKENDS} PulseAudio${IS_LINKED},")
1069         set(ALC_OBJS  ${ALC_OBJS} alc/backends/pulseaudio.cpp alc/backends/pulseaudio.h)
1070         add_backend_libs(${PULSEAUDIO_LIBRARY})
1071         set(INC_PATHS ${INC_PATHS} ${PULSEAUDIO_INCLUDE_DIR})
1072     endif()
1073 endif()
1074 if(ALSOFT_REQUIRE_PULSEAUDIO AND NOT HAVE_PULSEAUDIO)
1075     message(FATAL_ERROR "Failed to enabled required PulseAudio backend")
1076 endif()
1077
1078 # Check JACK backend
1079 option(ALSOFT_REQUIRE_JACK "Require JACK backend" OFF)
1080 find_package(JACK)
1081 if(JACK_FOUND)
1082     option(ALSOFT_BACKEND_JACK "Enable JACK backend" ON)
1083     if(ALSOFT_BACKEND_JACK)
1084         set(HAVE_JACK 1)
1085         set(BACKENDS  "${BACKENDS} JACK${IS_LINKED},")
1086         set(ALC_OBJS  ${ALC_OBJS} alc/backends/jack.cpp alc/backends/jack.h)
1087         add_backend_libs(${JACK_LIBRARIES})
1088         set(INC_PATHS ${INC_PATHS} ${JACK_INCLUDE_DIRS})
1089     endif()
1090 endif()
1091 if(ALSOFT_REQUIRE_JACK AND NOT HAVE_JACK)
1092     message(FATAL_ERROR "Failed to enabled required JACK backend")
1093 endif()
1094
1095 # Check CoreAudio backend
1096 option(ALSOFT_REQUIRE_COREAUDIO "Require CoreAudio backend" OFF)
1097 find_library(COREAUDIO_FRAMEWORK NAMES CoreAudio)
1098 find_path(AUDIOUNIT_INCLUDE_DIR NAMES AudioUnit/AudioUnit.h)
1099 if(COREAUDIO_FRAMEWORK AND AUDIOUNIT_INCLUDE_DIR)
1100     option(ALSOFT_BACKEND_COREAUDIO "Enable CoreAudio backend" ON)
1101     if(ALSOFT_BACKEND_COREAUDIO)
1102         set(HAVE_COREAUDIO 1)
1103         set(ALC_OBJS  ${ALC_OBJS} alc/backends/coreaudio.cpp alc/backends/coreaudio.h)
1104         set(BACKENDS  "${BACKENDS} CoreAudio,")
1105
1106         set(EXTRA_LIBS -Wl,-framework,CoreAudio ${EXTRA_LIBS})
1107         if(CMAKE_SYSTEM_NAME MATCHES "^(iOS|tvOS)$")
1108             find_library(COREFOUNDATION_FRAMEWORK NAMES CoreFoundation)
1109             if(COREFOUNDATION_FRAMEWORK)
1110                 set(EXTRA_LIBS -Wl,-framework,CoreFoundation ${EXTRA_LIBS})
1111             endif()
1112         else()
1113             set(EXTRA_LIBS -Wl,-framework,AudioUnit,-framework,ApplicationServices ${EXTRA_LIBS})
1114         endif()
1115
1116         # Some versions of OSX may need the AudioToolbox framework. Add it if
1117         # it's found.
1118         find_library(AUDIOTOOLBOX_LIBRARY NAMES AudioToolbox)
1119         if(AUDIOTOOLBOX_LIBRARY)
1120             set(EXTRA_LIBS -Wl,-framework,AudioToolbox ${EXTRA_LIBS})
1121         endif()
1122
1123         set(INC_PATHS ${INC_PATHS} ${AUDIOUNIT_INCLUDE_DIR})
1124     endif()
1125 endif()
1126 if(ALSOFT_REQUIRE_COREAUDIO AND NOT HAVE_COREAUDIO)
1127     message(FATAL_ERROR "Failed to enabled required CoreAudio backend")
1128 endif()
1129
1130 # Check for OpenSL (Android) backend
1131 option(ALSOFT_REQUIRE_OPENSL "Require OpenSL backend" OFF)
1132 find_package(OpenSL)
1133 if(OPENSL_FOUND)
1134     option(ALSOFT_BACKEND_OPENSL "Enable OpenSL backend" ON)
1135     if(ALSOFT_BACKEND_OPENSL)
1136         set(HAVE_OPENSL 1)
1137         set(ALC_OBJS  ${ALC_OBJS} alc/backends/opensl.cpp alc/backends/opensl.h)
1138         set(BACKENDS  "${BACKENDS} OpenSL,")
1139         set(EXTRA_LIBS "OpenSL::OpenSLES" ${EXTRA_LIBS})
1140     endif()
1141 endif()
1142 if(ALSOFT_REQUIRE_OPENSL AND NOT HAVE_OPENSL)
1143     message(FATAL_ERROR "Failed to enabled required OpenSL backend")
1144 endif()
1145
1146 # Check for Oboe (Android) backend
1147 set(OBOE_TARGET )
1148 if(ANDROID)
1149     set(OBOE_SOURCE "" CACHE STRING "Source directory for Oboe.")
1150     if(OBOE_SOURCE)
1151         add_subdirectory(${OBOE_SOURCE} ./oboe)
1152         set(OBOE_TARGET oboe)
1153     else()
1154         find_package(oboe CONFIG)
1155         if(NOT TARGET oboe::oboe)
1156             find_package(Oboe)
1157         endif()
1158         if(TARGET oboe::oboe)
1159             set(OBOE_TARGET "oboe::oboe")
1160         endif()
1161     endif()
1162 endif()
1163
1164 option(ALSOFT_REQUIRE_OBOE "Require Oboe backend" OFF)
1165 if(OBOE_TARGET)
1166     option(ALSOFT_BACKEND_OBOE "Enable Oboe backend" ON)
1167     if(ALSOFT_BACKEND_OBOE)
1168         set(HAVE_OBOE 1)
1169         set(ALC_OBJS  ${ALC_OBJS} alc/backends/oboe.cpp alc/backends/oboe.h)
1170         set(BACKENDS  "${BACKENDS} Oboe,")
1171         set(EXTRA_LIBS ${OBOE_TARGET} ${EXTRA_LIBS})
1172     endif()
1173 endif()
1174 if(ALSOFT_REQUIRE_OBOE AND NOT HAVE_OBOE)
1175     message(FATAL_ERROR "Failed to enabled required Oboe backend")
1176 endif()
1177
1178 # Check for SDL2 backend
1179 option(ALSOFT_REQUIRE_SDL2 "Require SDL2 backend" OFF)
1180 find_package(SDL2 QUIET)
1181 if(SDL2_FOUND)
1182     # Off by default, since it adds a runtime dependency
1183     option(ALSOFT_BACKEND_SDL2 "Enable SDL2 backend" OFF)
1184     if(ALSOFT_BACKEND_SDL2)
1185         set(HAVE_SDL2 1)
1186         set(ALC_OBJS  ${ALC_OBJS} alc/backends/sdl2.cpp alc/backends/sdl2.h)
1187         set(BACKENDS  "${BACKENDS} SDL2,")
1188         set(EXTRA_LIBS ${EXTRA_LIBS} SDL2::SDL2)
1189     endif()
1190 else()
1191     message(STATUS "Could NOT find SDL2")
1192 endif()
1193 if(ALSOFT_REQUIRE_SDL2 AND NOT SDL2_FOUND)
1194     message(FATAL_ERROR "Failed to enabled required SDL2 backend")
1195 endif()
1196
1197 # Optionally enable the Wave Writer backend
1198 option(ALSOFT_BACKEND_WAVE "Enable Wave Writer backend" ON)
1199 if(ALSOFT_BACKEND_WAVE)
1200     set(HAVE_WAVE 1)
1201     set(ALC_OBJS  ${ALC_OBJS} alc/backends/wave.cpp alc/backends/wave.h)
1202     set(BACKENDS  "${BACKENDS} WaveFile,")
1203 endif()
1204
1205 # This is always available
1206 set(BACKENDS  "${BACKENDS} Null")
1207
1208
1209 find_package(Git)
1210 if(ALSOFT_UPDATE_BUILD_VERSION AND GIT_FOUND AND EXISTS "${OpenAL_SOURCE_DIR}/.git")
1211     set(GIT_DIR "${OpenAL_SOURCE_DIR}/.git")
1212
1213     # Check if this is a submodule, if it is then find the .git directory
1214     if(NOT IS_DIRECTORY "${OpenAL_SOURCE_DIR}/.git")
1215         file(READ ${GIT_DIR} submodule)
1216         string(REGEX REPLACE "gitdir: (.*)$" "\\1" GIT_DIR_RELATIVE ${submodule})
1217         string(STRIP ${GIT_DIR_RELATIVE} GIT_DIR_RELATIVE)
1218         get_filename_component(SUBMODULE_DIR ${GIT_DIR} PATH)
1219         get_filename_component(GIT_DIR ${SUBMODULE_DIR}/${GIT_DIR_RELATIVE} ABSOLUTE)
1220     endif()
1221
1222     # Get the current working branch and its latest abbreviated commit hash
1223     add_custom_command(OUTPUT "${OpenAL_BINARY_DIR}/version_witness.txt"
1224         BYPRODUCTS "${OpenAL_BINARY_DIR}/version.h"
1225         COMMAND ${CMAKE_COMMAND} -D GIT_EXECUTABLE=${GIT_EXECUTABLE} -D LIB_VERSION=${LIB_VERSION}
1226             -D LIB_VERSION_NUM=${LIB_VERSION_NUM} -D SRC=${OpenAL_SOURCE_DIR}/version.h.in
1227             -D DST=${OpenAL_BINARY_DIR}/version.h -P ${OpenAL_SOURCE_DIR}/version.cmake
1228         COMMAND ${CMAKE_COMMAND} -E touch "${OpenAL_BINARY_DIR}/version_witness.txt"
1229         WORKING_DIRECTORY "${OpenAL_SOURCE_DIR}"
1230         MAIN_DEPENDENCY "${OpenAL_SOURCE_DIR}/version.h.in"
1231         DEPENDS "${GIT_DIR}/index" "${OpenAL_SOURCE_DIR}/version.cmake"
1232         VERBATIM
1233     )
1234
1235     add_custom_target(build_version DEPENDS "${OpenAL_BINARY_DIR}/version_witness.txt")
1236 else()
1237     set(GIT_BRANCH "UNKNOWN")
1238     set(GIT_COMMIT_HASH "unknown")
1239     configure_file(
1240         "${OpenAL_SOURCE_DIR}/version.h.in"
1241         "${OpenAL_BINARY_DIR}/version.h")
1242 endif()
1243
1244
1245 option(ALSOFT_EMBED_HRTF_DATA "Embed the HRTF data files (increases library footprint)" ON)
1246 if(ALSOFT_EMBED_HRTF_DATA)
1247     macro(make_hrtf_header FILENAME VARNAME)
1248         set(infile  "${OpenAL_SOURCE_DIR}/hrtf/${FILENAME}")
1249         set(outfile  "${OpenAL_BINARY_DIR}/${VARNAME}.txt")
1250
1251         add_custom_command(OUTPUT "${outfile}"
1252             COMMAND ${CMAKE_COMMAND} -D "INPUT_FILE=${infile}" -D "OUTPUT_FILE=${outfile}"
1253                 -P "${CMAKE_MODULE_PATH}/bin2h.script.cmake"
1254             WORKING_DIRECTORY "${OpenAL_SOURCE_DIR}"
1255             DEPENDS "${infile}" "${CMAKE_MODULE_PATH}/bin2h.script.cmake"
1256             VERBATIM
1257         )
1258         set(ALC_OBJS  ${ALC_OBJS} "${outfile}")
1259     endmacro()
1260
1261     make_hrtf_header("Default HRTF.mhr" "default_hrtf")
1262 endif()
1263
1264
1265 if(ALSOFT_UTILS)
1266     find_package(MySOFA)
1267     if(NOT ALSOFT_NO_CONFIG_UTIL)
1268         find_package(Qt5Widgets QUIET)
1269         if(NOT Qt5Widgets_FOUND)
1270             message(STATUS "Could NOT find Qt5Widgets")
1271         endif()
1272     endif()
1273 endif()
1274 if(ALSOFT_UTILS OR ALSOFT_EXAMPLES)
1275     find_package(SndFile)
1276     if(SDL2_FOUND)
1277         find_package(FFmpeg COMPONENTS AVFORMAT AVCODEC AVUTIL SWSCALE SWRESAMPLE)
1278     endif()
1279 endif()
1280
1281 if(NOT WIN32)
1282     set(LIBNAME "openal")
1283 else()
1284     set(LIBNAME "OpenAL32")
1285 endif()
1286
1287 # Needed for openal.pc.in
1288 set(prefix ${CMAKE_INSTALL_PREFIX})
1289 set(exec_prefix "\${prefix}")
1290 set(libdir "${CMAKE_INSTALL_FULL_LIBDIR}")
1291 set(bindir "${CMAKE_INSTALL_FULL_BINDIR}")
1292 set(includedir "${CMAKE_INSTALL_FULL_INCLUDEDIR}")
1293 set(PACKAGE_VERSION "${LIB_VERSION}")
1294 set(PKG_CONFIG_CFLAGS )
1295 set(PKG_CONFIG_PRIVATE_LIBS )
1296 if(LIBTYPE STREQUAL "STATIC")
1297     set(PKG_CONFIG_CFLAGS -DAL_LIBTYPE_STATIC)
1298     foreach(FLAG  ${LINKER_FLAGS} ${EXTRA_LIBS} ${MATH_LIB})
1299         # If this is already a linker flag, or is a full path+file, add it
1300         # as-is. If it's an SDL2 target, add the link flag for it. Otherwise,
1301         # it's a name intended to be dressed as -lname.
1302         if(FLAG MATCHES "^-.*" OR EXISTS "${FLAG}")
1303             set(PKG_CONFIG_PRIVATE_LIBS "${PKG_CONFIG_PRIVATE_LIBS} ${FLAG}")
1304         elseif(FLAG MATCHES "^SDL2::SDL2")
1305             set(PKG_CONFIG_PRIVATE_LIBS "${PKG_CONFIG_PRIVATE_LIBS} -lSDL2")
1306         else()
1307             set(PKG_CONFIG_PRIVATE_LIBS "${PKG_CONFIG_PRIVATE_LIBS} -l${FLAG}")
1308         endif()
1309     endforeach()
1310 endif()
1311
1312 # End configuration
1313 configure_file(
1314     "${OpenAL_SOURCE_DIR}/config.h.in"
1315     "${OpenAL_BINARY_DIR}/config.h")
1316 configure_file(
1317     "${OpenAL_SOURCE_DIR}/openal.pc.in"
1318     "${OpenAL_BINARY_DIR}/openal.pc"
1319     @ONLY)
1320
1321
1322 add_library(common STATIC EXCLUDE_FROM_ALL ${COMMON_OBJS})
1323 target_include_directories(common PRIVATE ${OpenAL_BINARY_DIR} ${OpenAL_SOURCE_DIR}/include)
1324 target_compile_definitions(common PRIVATE ${CPP_DEFS})
1325 target_compile_options(common PRIVATE ${C_FLAGS})
1326 set_target_properties(common PROPERTIES ${DEFAULT_TARGET_PROPS} POSITION_INDEPENDENT_CODE TRUE)
1327
1328
1329 unset(HAS_ROUTER)
1330 set(IMPL_TARGET OpenAL) # Either OpenAL or soft_oal.
1331
1332 # Build main library
1333 if(LIBTYPE STREQUAL "STATIC")
1334     add_library(${IMPL_TARGET} STATIC ${COMMON_OBJS} ${OPENAL_OBJS} ${ALC_OBJS} ${CORE_OBJS})
1335     target_compile_definitions(${IMPL_TARGET} PUBLIC AL_LIBTYPE_STATIC)
1336     target_link_libraries(${IMPL_TARGET} PRIVATE ${LINKER_FLAGS} ${EXTRA_LIBS} ${MATH_LIB})
1337
1338     if(WIN32)
1339         # This option is for static linking OpenAL Soft into another project
1340         # that already defines the IDs. It is up to that project to ensure all
1341         # required IDs are defined.
1342         option(ALSOFT_NO_UID_DEFS "Do not define GUIDs, IIDs, CLSIDs, or PropertyKeys" OFF)
1343         if(ALSOFT_NO_UID_DEFS)
1344             target_compile_definitions(${IMPL_TARGET} PRIVATE AL_NO_UID_DEFS)
1345         endif()
1346     endif()
1347 else()
1348     set(RC_CONFIG resources/openal32.rc)
1349     if(WIN32 AND ALSOFT_BUILD_ROUTER)
1350         add_library(OpenAL SHARED
1351             resources/router.rc
1352             router/router.cpp
1353             router/router.h
1354             router/alc.cpp
1355             router/al.cpp
1356         )
1357         target_compile_definitions(OpenAL
1358             PRIVATE AL_BUILD_LIBRARY AL_ALEXT_PROTOTYPES "ALC_API=${EXPORT_DECL}"
1359             "AL_API=${EXPORT_DECL}" ${CPP_DEFS})
1360         target_compile_options(OpenAL PRIVATE ${C_FLAGS})
1361         target_link_libraries(OpenAL PRIVATE common ${LINKER_FLAGS})
1362         target_include_directories(OpenAL
1363           PUBLIC
1364             $<BUILD_INTERFACE:${OpenAL_SOURCE_DIR}/include>
1365             $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
1366           PRIVATE
1367             ${OpenAL_SOURCE_DIR}/common
1368             ${OpenAL_BINARY_DIR}
1369         )
1370         set_target_properties(OpenAL PROPERTIES ${DEFAULT_TARGET_PROPS} PREFIX ""
1371             OUTPUT_NAME ${LIBNAME})
1372         if(TARGET build_version)
1373             add_dependencies(OpenAL build_version)
1374         endif()
1375         set(HAS_ROUTER 1)
1376
1377         set(LIBNAME "soft_oal")
1378         set(IMPL_TARGET soft_oal)
1379         set(RC_CONFIG resources/soft_oal.rc)
1380     endif()
1381
1382     # !important: for osx framework public header works, the headers must be in
1383     # the project
1384     set(TARGET_PUBLIC_HEADERS include/AL/al.h include/AL/alc.h include/AL/alext.h include/AL/efx.h
1385         include/AL/efx-presets.h)
1386     add_library(${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 common ${LINKER_FLAGS} ${EXTRA_LIBS} ${MATH_LIB})
1392
1393     if(APPLE AND ALSOFT_OSX_FRAMEWORK)
1394         # Sets framework name to soft_oal to avoid ambiguity with the system OpenAL.framework
1395         set(LIBNAME "soft_oal")
1396         if(GIT_FOUND)
1397             execute_process(COMMAND ${GIT_EXECUTABLE} rev-list --count HEAD
1398                 TIMEOUT 5
1399                 OUTPUT_VARIABLE BUNDLE_VERSION
1400                 OUTPUT_STRIP_TRAILING_WHITESPACE)
1401         else()
1402             set(BUNDLE_VERSION 1)
1403         endif()
1404
1405         # Build: Fix rpath in iOS shared libraries
1406         # If this flag is not set, the final dylib binary ld path will be
1407         # /User/xxx/*/soft_oal.framework/soft_oal, which can't be loaded by iOS devices.
1408         # See also: https://github.com/libjpeg-turbo/libjpeg-turbo/commit/c80ddef7a4ce21ace9e3ca0fd190d320cc8cdaeb
1409         if(NOT CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG)
1410             set(CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG "-Wl,-rpath,")
1411         endif()
1412
1413         set_target_properties(${IMPL_TARGET} PROPERTIES
1414             FRAMEWORK TRUE
1415             FRAMEWORK_VERSION C
1416             MACOSX_FRAMEWORK_NAME "${IMPL_TARGET}"
1417             MACOSX_FRAMEWORK_IDENTIFIER "org.openal-soft.openal"
1418             MACOSX_FRAMEWORK_SHORT_VERSION_STRING "${LIB_VERSION}"
1419             MACOSX_FRAMEWORK_BUNDLE_VERSION "${BUNDLE_VERSION}"
1420             XCODE_ATTRIBUTE_CODE_SIGN_IDENTITY ""
1421             XCODE_ATTRIBUTE_CODE_SIGNING_ALLOWED "NO"
1422             XCODE_ATTRIBUTE_CODE_SIGNING_REQUIRED "NO"
1423             PUBLIC_HEADER "${TARGET_PUBLIC_HEADERS}"
1424             MACOSX_RPATH TRUE)
1425     endif()
1426 endif()
1427
1428 target_include_directories(${IMPL_TARGET}
1429   PUBLIC
1430     $<BUILD_INTERFACE:${OpenAL_SOURCE_DIR}/include>
1431   INTERFACE
1432     $<BUILD_INTERFACE:${OpenAL_SOURCE_DIR}/include/AL>
1433     $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
1434     $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/AL>
1435   PRIVATE
1436     ${INC_PATHS}
1437     ${OpenAL_BINARY_DIR}
1438     ${OpenAL_SOURCE_DIR}
1439     ${OpenAL_SOURCE_DIR}/common
1440 )
1441
1442 set_target_properties(${IMPL_TARGET} PROPERTIES ${DEFAULT_TARGET_PROPS}
1443     OUTPUT_NAME ${LIBNAME}
1444     VERSION ${LIB_VERSION}
1445     SOVERSION ${LIB_MAJOR_VERSION}
1446 )
1447 target_compile_definitions(${IMPL_TARGET}
1448     PRIVATE AL_BUILD_LIBRARY AL_ALEXT_PROTOTYPES "ALC_API=${EXPORT_DECL}" "AL_API=${EXPORT_DECL}"
1449     ${CPP_DEFS})
1450 target_compile_options(${IMPL_TARGET} PRIVATE ${C_FLAGS})
1451
1452 if(TARGET build_version)
1453     add_dependencies(${IMPL_TARGET} build_version)
1454 endif()
1455
1456 if(WIN32 AND MINGW AND ALSOFT_BUILD_IMPORT_LIB AND NOT LIBTYPE STREQUAL "STATIC")
1457     find_program(SED_EXECUTABLE NAMES sed DOC "sed executable")
1458     if(NOT SED_EXECUTABLE OR NOT CMAKE_DLLTOOL)
1459         message(STATUS "")
1460         if(NOT SED_EXECUTABLE)
1461             message(STATUS "WARNING: Cannot find sed, disabling .def/.lib generation")
1462         endif()
1463         if(NOT CMAKE_DLLTOOL)
1464             message(STATUS "WARNING: Cannot find dlltool, disabling .def/.lib generation")
1465         endif()
1466     else()
1467         set_property(TARGET OpenAL APPEND_STRING PROPERTY
1468             LINK_FLAGS " -Wl,--output-def,OpenAL32.def")
1469         add_custom_command(TARGET OpenAL POST_BUILD
1470             COMMAND "${SED_EXECUTABLE}" -i -e "s/ @[^ ]*//" OpenAL32.def
1471             COMMAND "${CMAKE_DLLTOOL}" -d OpenAL32.def -l OpenAL32.lib -D OpenAL32.dll
1472             # Technically OpenAL32.def was created by the build, but cmake
1473             # doesn't recognize it due to -Wl,--output-def,OpenAL32.def being
1474             # manually specified. But declaring the file here allows it to be
1475             # properly cleaned, e.g. during make clean.
1476             BYPRODUCTS OpenAL32.def OpenAL32.lib
1477             COMMENT "Stripping ordinals from OpenAL32.def and generating OpenAL32.lib..."
1478             VERBATIM
1479         )
1480     endif()
1481 endif()
1482
1483 if(HAS_ROUTER)
1484     message(STATUS "")
1485     message(STATUS "Building DLL router")
1486 endif()
1487
1488 message(STATUS "")
1489 message(STATUS "Building OpenAL with support for the following backends:")
1490 message(STATUS "   ${BACKENDS}")
1491 message(STATUS "")
1492 message(STATUS "Building with support for CPU extensions:")
1493 message(STATUS "    ${CPU_EXTS}")
1494 message(STATUS "")
1495 if(FPMATH_SET)
1496     message(STATUS "Building with SSE${FPMATH_SET} codegen")
1497     message(STATUS "")
1498 endif()
1499
1500 if(ALSOFT_EAX)
1501     message(STATUS "Building with legacy EAX extension support")
1502     message(STATUS "")
1503 endif()
1504
1505 if(ALSOFT_EMBED_HRTF_DATA)
1506     message(STATUS "Embedding HRTF datasets")
1507     message(STATUS "")
1508 endif()
1509
1510 # An alias for sub-project builds
1511 add_library(OpenAL::OpenAL ALIAS OpenAL)
1512
1513 # Install main library
1514 if(ALSOFT_INSTALL)
1515     configure_package_config_file(OpenALConfig.cmake.in OpenALConfig.cmake
1516         INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/OpenAL)
1517     install(TARGETS OpenAL EXPORT OpenAL
1518         RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
1519         LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
1520         ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
1521         FRAMEWORK DESTINATION ${CMAKE_INSTALL_LIBDIR}
1522         INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} ${CMAKE_INSTALL_INCLUDEDIR}/AL)
1523     export(TARGETS OpenAL
1524         NAMESPACE OpenAL::
1525         FILE OpenALTargets.cmake)
1526     install(EXPORT OpenAL
1527         DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/OpenAL
1528         NAMESPACE OpenAL::
1529         FILE OpenALTargets.cmake)
1530     install(DIRECTORY include/AL
1531         DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
1532     install(FILES "${OpenAL_BINARY_DIR}/openal.pc"
1533         DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
1534     install(FILES "${OpenAL_BINARY_DIR}/OpenALConfig.cmake"
1535         DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/OpenAL")
1536     if(TARGET soft_oal)
1537         install(TARGETS soft_oal
1538             RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
1539     endif()
1540     message(STATUS "Installing library and headers")
1541 else()
1542     message(STATUS "NOT installing library and headers")
1543 endif()
1544
1545 if(ALSOFT_INSTALL_CONFIG)
1546     install(FILES alsoftrc.sample
1547         DESTINATION ${CMAKE_INSTALL_DATADIR}/openal)
1548     message(STATUS "Installing sample configuration")
1549 endif()
1550
1551 if(ALSOFT_INSTALL_HRTF_DATA)
1552     install(DIRECTORY hrtf
1553         DESTINATION ${CMAKE_INSTALL_DATADIR}/openal)
1554     message(STATUS "Installing HRTF data files")
1555 endif()
1556
1557 if(ALSOFT_INSTALL_AMBDEC_PRESETS)
1558     install(DIRECTORY presets
1559         DESTINATION ${CMAKE_INSTALL_DATADIR}/openal)
1560     message(STATUS "Installing AmbDec presets")
1561 endif()
1562 message(STATUS "")
1563
1564 set(UNICODE_FLAG )
1565 if(MINGW)
1566     set(UNICODE_FLAG ${UNICODE_FLAG} -municode)
1567 endif()
1568 set(EXTRA_INSTALLS )
1569 if(ALSOFT_UTILS)
1570     add_executable(openal-info utils/openal-info.c)
1571     target_include_directories(openal-info PRIVATE ${OpenAL_SOURCE_DIR}/common)
1572     target_compile_options(openal-info PRIVATE ${C_FLAGS})
1573     target_link_libraries(openal-info PRIVATE ${LINKER_FLAGS} OpenAL ${UNICODE_FLAG})
1574     set_target_properties(openal-info PROPERTIES ${DEFAULT_TARGET_PROPS})
1575     if(ALSOFT_INSTALL_EXAMPLES)
1576         set(EXTRA_INSTALLS ${EXTRA_INSTALLS} openal-info)
1577     endif()
1578
1579     if(SNDFILE_FOUND)
1580         add_executable(uhjdecoder utils/uhjdecoder.cpp)
1581         target_compile_definitions(uhjdecoder PRIVATE ${CPP_DEFS})
1582         target_include_directories(uhjdecoder
1583             PRIVATE ${OpenAL_BINARY_DIR} ${OpenAL_SOURCE_DIR}/common)
1584         target_compile_options(uhjdecoder PRIVATE ${C_FLAGS})
1585         target_link_libraries(uhjdecoder PUBLIC common
1586             PRIVATE ${LINKER_FLAGS} SndFile::SndFile ${UNICODE_FLAG})
1587         set_target_properties(uhjdecoder PROPERTIES ${DEFAULT_TARGET_PROPS})
1588
1589         add_executable(uhjencoder utils/uhjencoder.cpp)
1590         target_compile_definitions(uhjencoder PRIVATE ${CPP_DEFS})
1591         target_include_directories(uhjencoder
1592             PRIVATE ${OpenAL_BINARY_DIR} ${OpenAL_SOURCE_DIR}/common)
1593         target_compile_options(uhjencoder PRIVATE ${C_FLAGS})
1594         target_link_libraries(uhjencoder PUBLIC common
1595             PRIVATE ${LINKER_FLAGS} SndFile::SndFile ${UNICODE_FLAG})
1596         set_target_properties(uhjencoder PROPERTIES ${DEFAULT_TARGET_PROPS})
1597     endif()
1598
1599     if(MYSOFA_FOUND)
1600         set(SOFA_SUPPORT_SRCS
1601             utils/sofa-support.cpp
1602             utils/sofa-support.h)
1603         add_library(sofa-support STATIC EXCLUDE_FROM_ALL ${SOFA_SUPPORT_SRCS})
1604         target_compile_definitions(sofa-support PRIVATE ${CPP_DEFS})
1605         target_include_directories(sofa-support PUBLIC ${OpenAL_SOURCE_DIR}/common)
1606         target_compile_options(sofa-support PRIVATE ${C_FLAGS})
1607         target_link_libraries(sofa-support PUBLIC common MySOFA::MySOFA PRIVATE ${LINKER_FLAGS})
1608         set_target_properties(sofa-support PROPERTIES ${DEFAULT_TARGET_PROPS})
1609
1610         set(MAKEMHR_SRCS
1611             utils/makemhr/loaddef.cpp
1612             utils/makemhr/loaddef.h
1613             utils/makemhr/loadsofa.cpp
1614             utils/makemhr/loadsofa.h
1615             utils/makemhr/makemhr.cpp
1616             utils/makemhr/makemhr.h)
1617         if(NOT HAVE_GETOPT)
1618             set(MAKEMHR_SRCS  ${MAKEMHR_SRCS} utils/getopt.c utils/getopt.h)
1619         endif()
1620         add_executable(makemhr ${MAKEMHR_SRCS})
1621         target_compile_definitions(makemhr PRIVATE ${CPP_DEFS})
1622         target_include_directories(makemhr
1623             PRIVATE ${OpenAL_BINARY_DIR} ${OpenAL_SOURCE_DIR}/utils)
1624         target_compile_options(makemhr PRIVATE ${C_FLAGS})
1625         target_link_libraries(makemhr PRIVATE ${LINKER_FLAGS} sofa-support ${UNICODE_FLAG})
1626         set_target_properties(makemhr PROPERTIES ${DEFAULT_TARGET_PROPS})
1627         if(ALSOFT_INSTALL_EXAMPLES)
1628             set(EXTRA_INSTALLS ${EXTRA_INSTALLS} makemhr)
1629         endif()
1630
1631         set(SOFAINFO_SRCS  utils/sofa-info.cpp)
1632         add_executable(sofa-info ${SOFAINFO_SRCS})
1633         target_compile_definitions(sofa-info PRIVATE ${CPP_DEFS})
1634         target_include_directories(sofa-info PRIVATE ${OpenAL_SOURCE_DIR}/utils)
1635         target_compile_options(sofa-info PRIVATE ${C_FLAGS})
1636         target_link_libraries(sofa-info PRIVATE ${LINKER_FLAGS} sofa-support ${UNICODE_FLAG})
1637         set_target_properties(sofa-info PROPERTIES ${DEFAULT_TARGET_PROPS})
1638     endif()
1639     message(STATUS "Building utility programs")
1640
1641     if(NOT ALSOFT_NO_CONFIG_UTIL)
1642         add_subdirectory(utils/alsoft-config)
1643     endif()
1644     message(STATUS "")
1645 endif()
1646
1647
1648 # Add a static library with common functions used by multiple example targets
1649 add_library(ex-common STATIC EXCLUDE_FROM_ALL
1650     examples/common/alhelpers.c
1651     examples/common/alhelpers.h)
1652 target_compile_definitions(ex-common PUBLIC ${CPP_DEFS})
1653 target_include_directories(ex-common PUBLIC ${OpenAL_SOURCE_DIR}/common)
1654 target_compile_options(ex-common PUBLIC ${C_FLAGS})
1655 target_link_libraries(ex-common PUBLIC OpenAL PRIVATE ${RT_LIB})
1656 set_target_properties(ex-common PROPERTIES ${DEFAULT_TARGET_PROPS})
1657
1658 if(ALSOFT_EXAMPLES)
1659     add_executable(altonegen examples/altonegen.c)
1660     target_link_libraries(altonegen PRIVATE ${LINKER_FLAGS} ${MATH_LIB} ex-common ${UNICODE_FLAG})
1661     set_target_properties(altonegen PROPERTIES ${DEFAULT_TARGET_PROPS})
1662
1663     add_executable(alrecord examples/alrecord.c)
1664     target_link_libraries(alrecord PRIVATE ${LINKER_FLAGS} ex-common ${UNICODE_FLAG})
1665     set_target_properties(alrecord PROPERTIES ${DEFAULT_TARGET_PROPS})
1666
1667     if(ALSOFT_INSTALL_EXAMPLES)
1668         set(EXTRA_INSTALLS ${EXTRA_INSTALLS} altonegen alrecord)
1669     endif()
1670
1671     message(STATUS "Building example programs")
1672
1673     if(SNDFILE_FOUND)
1674         add_executable(alplay examples/alplay.c)
1675         target_link_libraries(alplay PRIVATE ${LINKER_FLAGS} SndFile::SndFile ex-common
1676             ${UNICODE_FLAG})
1677         set_target_properties(alplay PROPERTIES ${DEFAULT_TARGET_PROPS})
1678
1679         add_executable(alstream examples/alstream.c)
1680         target_link_libraries(alstream PRIVATE ${LINKER_FLAGS} SndFile::SndFile ex-common
1681             ${UNICODE_FLAG})
1682         set_target_properties(alstream PROPERTIES ${DEFAULT_TARGET_PROPS})
1683
1684         add_executable(alreverb examples/alreverb.c)
1685         target_link_libraries(alreverb PRIVATE ${LINKER_FLAGS} SndFile::SndFile ex-common
1686             ${UNICODE_FLAG})
1687         set_target_properties(alreverb PROPERTIES ${DEFAULT_TARGET_PROPS})
1688
1689         add_executable(almultireverb examples/almultireverb.c)
1690         target_link_libraries(almultireverb
1691             PRIVATE ${LINKER_FLAGS} SndFile::SndFile ex-common ${MATH_LIB} ${UNICODE_FLAG})
1692         set_target_properties(almultireverb PROPERTIES ${DEFAULT_TARGET_PROPS})
1693
1694         add_executable(allatency examples/allatency.c)
1695         target_link_libraries(allatency PRIVATE ${LINKER_FLAGS} SndFile::SndFile ex-common
1696             ${UNICODE_FLAG})
1697         set_target_properties(allatency PROPERTIES ${DEFAULT_TARGET_PROPS})
1698
1699         add_executable(alhrtf examples/alhrtf.c)
1700         target_link_libraries(alhrtf
1701             PRIVATE ${LINKER_FLAGS} SndFile::SndFile ex-common ${MATH_LIB} ${UNICODE_FLAG})
1702         set_target_properties(alhrtf PROPERTIES ${DEFAULT_TARGET_PROPS})
1703
1704         add_executable(alstreamcb examples/alstreamcb.cpp)
1705         target_link_libraries(alstreamcb PRIVATE ${LINKER_FLAGS} SndFile::SndFile ex-common
1706             ${UNICODE_FLAG})
1707         set_target_properties(alstreamcb PROPERTIES ${DEFAULT_TARGET_PROPS})
1708
1709         add_executable(alconvolve examples/alconvolve.c)
1710         target_link_libraries(alconvolve PRIVATE ${LINKER_FLAGS} common SndFile::SndFile ex-common
1711             ${UNICODE_FLAG})
1712         set_target_properties(alconvolve PROPERTIES ${DEFAULT_TARGET_PROPS})
1713
1714         if(ALSOFT_INSTALL_EXAMPLES)
1715             set(EXTRA_INSTALLS ${EXTRA_INSTALLS} alplay alstream alreverb almultireverb allatency
1716                 alhrtf)
1717         endif()
1718
1719         message(STATUS "Building SndFile example programs")
1720     endif()
1721
1722     if(SDL2_FOUND)
1723         add_executable(alloopback examples/alloopback.c)
1724         target_link_libraries(alloopback
1725             PRIVATE ${LINKER_FLAGS} SDL2::SDL2 ex-common ${MATH_LIB})
1726         set_target_properties(alloopback PROPERTIES ${DEFAULT_TARGET_PROPS})
1727
1728         if(ALSOFT_INSTALL_EXAMPLES)
1729             set(EXTRA_INSTALLS ${EXTRA_INSTALLS} alloopback)
1730         endif()
1731
1732         message(STATUS "Building SDL example programs")
1733
1734         set(FFVER_OK FALSE)
1735         if(FFMPEG_FOUND)
1736             set(FFVER_OK TRUE)
1737             if(AVFORMAT_VERSION VERSION_LESS "59.27.100")
1738                 message(STATUS "libavformat is too old! (${AVFORMAT_VERSION}, wanted 59.27.100)")
1739                 set(FFVER_OK FALSE)
1740             endif()
1741             if(AVCODEC_VERSION VERSION_LESS "59.37.100")
1742                 message(STATUS "libavcodec is too old! (${AVCODEC_VERSION}, wanted 59.37.100)")
1743                 set(FFVER_OK FALSE)
1744             endif()
1745             if(AVUTIL_VERSION VERSION_LESS "57.28.100")
1746                 message(STATUS "libavutil is too old! (${AVUTIL_VERSION}, wanted 57.28.100)")
1747                 set(FFVER_OK FALSE)
1748             endif()
1749             if(SWSCALE_VERSION VERSION_LESS "6.7.100")
1750                 message(STATUS "libswscale is too old! (${SWSCALE_VERSION}, wanted 6.7.100)")
1751                 set(FFVER_OK FALSE)
1752             endif()
1753             if(SWRESAMPLE_VERSION VERSION_LESS "4.7.100")
1754                 message(STATUS "libswresample is too old! (${SWRESAMPLE_VERSION}, wanted 4.7.100)")
1755                 set(FFVER_OK FALSE)
1756             endif()
1757         endif()
1758         if(FFVER_OK)
1759             add_executable(alffplay examples/alffplay.cpp)
1760             target_include_directories(alffplay PRIVATE ${FFMPEG_INCLUDE_DIRS})
1761             target_link_libraries(alffplay
1762                 PRIVATE ${LINKER_FLAGS} SDL2::SDL2 ${FFMPEG_LIBRARIES} ex-common)
1763             set_target_properties(alffplay PROPERTIES ${DEFAULT_TARGET_PROPS})
1764
1765             if(ALSOFT_INSTALL_EXAMPLES)
1766                 set(EXTRA_INSTALLS ${EXTRA_INSTALLS} alffplay)
1767             endif()
1768             message(STATUS "Building SDL+FFmpeg example programs")
1769         endif()
1770     endif()
1771     message(STATUS "")
1772 endif()
1773
1774 if(EXTRA_INSTALLS)
1775     install(TARGETS ${EXTRA_INSTALLS}
1776         RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
1777         BUNDLE  DESTINATION ${CMAKE_INSTALL_BINDIR}
1778         LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
1779         ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
1780 endif()