Initial community commit

Src/external_dependencies/openmpt-trunk/src/mpt/base/detect_quirks.hpp

@@ -0,0 +1,147 @@
+/* SPDX-License-Identifier: BSL-1.0 OR BSD-3-Clause */
+
+#ifndef MPT_BASE_DETECT_QUIRKS_HPP
+#define MPT_BASE_DETECT_QUIRKS_HPP
+
+
+
+#include "mpt/base/detect_compiler.hpp"
+#include "mpt/base/detect_libcxx.hpp"
+#include "mpt/base/detect_os.hpp"
+
+
+
+#if MPT_COMPILER_MSVC
+// Compiler has multiplication/division semantics when shifting signed integers.
+#define MPT_COMPILER_SHIFT_SIGNED 1
+#endif
+
+#ifndef MPT_COMPILER_SHIFT_SIGNED
+#define MPT_COMPILER_SHIFT_SIGNED 0
+#endif
+
+
+
+// This should really be based on __STDCPP_THREADS__, but that is not defined by
+// GCC or clang. Stupid.
+// Just assume multithreaded and disable for platforms we know are
+// singlethreaded later on.
+#define MPT_PLATFORM_MULTITHREADED 1
+
+#if MPT_OS_DJGPP
+#undef MPT_PLATFORM_MULTITHREADED
+#define MPT_PLATFORM_MULTITHREADED 0
+#endif
+
+#if (MPT_OS_EMSCRIPTEN && !defined(__EMSCRIPTEN_PTHREADS__))
+#undef MPT_PLATFORM_MULTITHREADED
+#define MPT_PLATFORM_MULTITHREADED 0
+#endif
+
+
+
+#if MPT_OS_WINDOWS && MPT_COMPILER_MSVC
+#if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0600) // _WIN32_WINNT_VISTA
+#define MPT_COMPILER_QUIRK_COMPLEX_STD_MUTEX
+#endif
+#endif
+
+
+
+#if MPT_OS_EMSCRIPTEN && defined(MPT_BUILD_AUDIOWORKLETPROCESSOR)
+#define MPT_COMPILER_QUIRK_CHRONO_NO_HIGH_RESOLUTION_CLOCK
+#endif
+
+
+
+#if MPT_OS_EMSCRIPTEN && defined(MPT_BUILD_AUDIOWORKLETPROCESSOR)
+#define MPT_COMPILER_QUIRK_RANDOM_NO_RANDOM_DEVICE
+#endif
+
+
+
+#if MPT_OS_DJGPP
+#define MPT_COMPILER_QUIRK_NO_WCHAR
+#endif
+
+
+
+#if MPT_OS_WINDOWS && MPT_GCC_BEFORE(9, 1, 0)
+// GCC C++ library has no wchar_t overloads
+#define MPT_COMPILER_QUIRK_WINDOWS_FSTREAM_NO_WCHAR
+#endif
+
+
+
+#if defined(__arm__)
+
+#if defined(__SOFTFP__)
+#define MPT_COMPILER_QUIRK_FLOAT_EMULATED 1
+#else
+#define MPT_COMPILER_QUIRK_FLOAT_EMULATED 0
+#endif
+#if defined(__VFP_FP__)
+// native-endian IEEE754
+#define MPT_COMPILER_QUIRK_FLOAT_NOTNATIVEENDIAN 0
+#define MPT_COMPILER_QUIRK_FLOAT_NOTIEEE754      0
+#elif defined(__MAVERICK__)
+// little-endian IEEE754, we assume native-endian though
+#define MPT_COMPILER_QUIRK_FLOAT_NOTNATIVEENDIAN 1
+#define MPT_COMPILER_QUIRK_FLOAT_NOTIEEE754      0
+#else
+// not IEEE754
+#define MPT_COMPILER_QUIRK_FLOAT_NOTNATIVEENDIAN 1
+#define MPT_COMPILER_QUIRK_FLOAT_NOTIEEE754      1
+#endif
+
+#elif defined(__mips__)
+
+#if defined(__mips_soft_float)
+#define MPT_COMPILER_QUIRK_FLOAT_EMULATED 1
+#else
+#define MPT_COMPILER_QUIRK_FLOAT_EMULATED 0
+#endif
+
+#endif
+
+#if MPT_OS_EMSCRIPTEN
+#define MPT_COMPILER_QUIRK_FLOAT_PREFER64 1
+#endif
+
+#ifndef MPT_COMPILER_QUIRK_FLOAT_PREFER32
+#define MPT_COMPILER_QUIRK_FLOAT_PREFER32 0
+#endif
+#ifndef MPT_COMPILER_QUIRK_FLOAT_PREFER64
+#define MPT_COMPILER_QUIRK_FLOAT_PREFER64 0
+#endif
+#ifndef MPT_COMPILER_QUIRK_FLOAT_EMULATED
+#define MPT_COMPILER_QUIRK_FLOAT_EMULATED 0
+#endif
+#ifndef MPT_COMPILER_QUIRK_FLOAT_NOTNATIVEENDIAN
+#define MPT_COMPILER_QUIRK_FLOAT_NOTNATIVEENDIAN 0
+#endif
+#ifndef MPT_COMPILER_QUIRK_FLOAT_NOTIEEE754
+#define MPT_COMPILER_QUIRK_FLOAT_NOTIEEE754 0
+#endif
+
+
+
+#if MPT_OS_MACOSX_OR_IOS
+#if defined(TARGET_OS_OSX)
+#if TARGET_OS_OSX
+#if (MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_15)
+#define MPT_LIBCXX_QUIRK_NO_TO_CHARS_INT
+#endif
+#endif
+#endif
+#endif
+
+
+
+#if (MPT_LIBCXX_MS && (MPT_MSVC_BEFORE(2019, 4) || !MPT_COMPILER_MSVC)) || (MPT_LIBCXX_GNU && (MPT_GCC_BEFORE(11, 0, 0) || !MPT_COMPILER_GCC)) || MPT_LIBCXX_LLVM || MPT_LIBCXX_GENERIC
+#define MPT_LIBCXX_QUIRK_NO_TO_CHARS_FLOAT
+#endif
+
+
+
+#endif // MPT_BASE_DETECT_QUIRKS_HPP