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386 lines
10 KiB
C++
386 lines
10 KiB
C++
// This code is in the public domain -- Ignacio Castano <castano@gmail.com>
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#pragma once
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#ifndef NV_CORE_H
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#define NV_CORE_H
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// Function linkage
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#if NVCORE_SHARED
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#ifdef NVCORE_EXPORTS
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#define NVCORE_API DLL_EXPORT
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#define NVCORE_CLASS DLL_EXPORT_CLASS
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#else
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#define NVCORE_API DLL_IMPORT
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#define NVCORE_CLASS DLL_IMPORT
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#endif
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#else // NVCORE_SHARED
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#define NVCORE_API
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#define NVCORE_CLASS
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#endif // NVCORE_SHARED
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// Platform definitions
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#include <posh.h>
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// OS:
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// NV_OS_WIN32
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// NV_OS_WIN64
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// NV_OS_MINGW
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// NV_OS_CYGWIN
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// NV_OS_LINUX
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// NV_OS_UNIX
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// NV_OS_DARWIN
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// NV_OS_XBOX
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// NV_OS_ORBIS
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// NV_OS_IOS
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#define NV_OS_STRING POSH_OS_STRING
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#if defined POSH_OS_LINUX
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# define NV_OS_LINUX 1
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# define NV_OS_UNIX 1
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#elif defined POSH_OS_ORBIS
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# define NV_OS_ORBIS 1
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#elif defined POSH_OS_FREEBSD
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# define NV_OS_FREEBSD 1
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# define NV_OS_UNIX 1
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#elif defined POSH_OS_NETBSD
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# define NV_OS_NETBSD 1
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# define NV_OS_UNIX 1
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#elif defined POSH_OS_OPENBSD
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# define NV_OS_OPENBSD 1
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# define NV_OS_UNIX 1
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#elif defined POSH_OS_CYGWIN32
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# define NV_OS_CYGWIN 1
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#elif defined POSH_OS_MINGW
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# define NV_OS_MINGW 1
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# define NV_OS_WIN32 1
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#elif defined POSH_OS_OSX
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# define NV_OS_OSX 1 // IC: Adding this, because iOS defines NV_OS_DARWIN too.
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# define NV_OS_DARWIN 1
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# define NV_OS_UNIX 1
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#elif defined POSH_OS_IOS
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# define NV_OS_DARWIN 1 //ACS should we keep this on IOS?
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# define NV_OS_UNIX 1
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# define NV_OS_IOS 1
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#elif defined POSH_OS_UNIX
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# define NV_OS_UNIX 1
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#elif defined POSH_OS_WIN64
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# define NV_OS_WIN32 1
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# define NV_OS_WIN64 1
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#elif defined POSH_OS_WIN32
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# define NV_OS_WIN32 1
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#elif defined POSH_OS_XBOX
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# define NV_OS_XBOX 1
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#else
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# error "Unsupported OS"
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#endif
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// Threading:
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// some platforms don't implement __thread or similar for thread-local-storage
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#if NV_OS_UNIX || NV_OS_ORBIS || NV_OS_IOS
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# define NV_OS_USE_PTHREAD 1
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# if 0 //Apple finally added TLS support to iOS!// NV_OS_IOS
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# define NV_OS_HAS_TLS_QUALIFIER 0
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# else
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# define NV_OS_HAS_TLS_QUALIFIER 1
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# endif
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#else
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# define NV_OS_USE_PTHREAD 0
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# define NV_OS_HAS_TLS_QUALIFIER 1
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#endif
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// CPUs:
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// NV_CPU_X86
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// NV_CPU_X86_64
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// NV_CPU_PPC
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// NV_CPU_ARM
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// NV_CPU_AARCH64
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// NV_CPU_E2K
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#define NV_CPU_STRING POSH_CPU_STRING
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#if defined POSH_CPU_X86_64
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//# define NV_CPU_X86 1
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# define NV_CPU_X86_64 1
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#elif defined POSH_CPU_X86
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# define NV_CPU_X86 1
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#elif defined POSH_CPU_PPC
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# define NV_CPU_PPC 1
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#elif defined POSH_CPU_STRONGARM
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# define NV_CPU_ARM 1
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#elif defined POSH_CPU_AARCH64
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# define NV_CPU_AARCH64 1
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#elif defined POSH_CPU_E2K
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# define NV_CPU_E2K 1
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#else
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# error "Unsupported CPU"
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#endif
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// Compiler:
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// NV_CC_GNUC
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// NV_CC_MSVC
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// NV_CC_CLANG
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#if defined POSH_COMPILER_CLANG
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# define NV_CC_CLANG 1
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# define NV_CC_GNUC 1 // Clang is compatible with GCC.
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# define NV_CC_STRING "clang"
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#elif defined POSH_COMPILER_GCC
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# define NV_CC_GNUC 1
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# define NV_CC_STRING "gcc"
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#elif defined POSH_COMPILER_MSVC
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# define NV_CC_MSVC 1
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# define NV_CC_STRING "msvc"
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#else
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# error "Unsupported compiler"
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#endif
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#if NV_CC_MSVC
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#define NV_CC_CPP11 (__cplusplus > 199711L || _MSC_VER >= 1800) // Visual Studio 2013 has all the features we use, but doesn't advertise full C++11 support yet.
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#else
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// @@ IC: This works in CLANG, about GCC?
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// @@ ES: Doesn't work in gcc. These 3 features are available in GCC >= 4.4.
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#ifdef __clang__
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#define NV_CC_CPP11 (__has_feature(cxx_deleted_functions) && __has_feature(cxx_rvalue_references) && __has_feature(cxx_static_assert))
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#elif defined __GNUC__
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#define NV_CC_CPP11 ( __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
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#endif
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#endif
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// Endiannes:
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// @@ POSH endian detection is broken for arm64 on iOS. They are bi-endian and iOS sets all their processors to little endian by default.
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#if NV_OS_IOS
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# define NV_LITTLE_ENDIAN 1
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# define NV_BIG_ENDIAN 0
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# define NV_ENDIAN_STRING "little"
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#else
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# define NV_LITTLE_ENDIAN POSH_LITTLE_ENDIAN
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# define NV_BIG_ENDIAN POSH_BIG_ENDIAN
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# define NV_ENDIAN_STRING POSH_ENDIAN_STRING
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#endif
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// Define the right printf prefix for size_t arguments:
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#if POSH_64BIT_POINTER
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# define NV_SIZET_PRINTF_PREFIX POSH_I64_PRINTF_PREFIX
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#else
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# define NV_SIZET_PRINTF_PREFIX
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#endif
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// cmake config
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#include "nvconfig.h"
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#if NV_OS_DARWIN
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#include <stdint.h>
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//#include <inttypes.h>
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// Type definitions:
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typedef uint8_t uint8;
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typedef int8_t int8;
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typedef uint16_t uint16;
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typedef int16_t int16;
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typedef uint32_t uint32;
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typedef int32_t int32;
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typedef uint64_t uint64;
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typedef int64_t int64;
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// POSH gets this wrong due to __LP64__
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#undef POSH_I64_PRINTF_PREFIX
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#define POSH_I64_PRINTF_PREFIX "ll"
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#else
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// Type definitions:
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typedef posh_u8_t uint8;
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typedef posh_i8_t int8;
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typedef posh_u16_t uint16;
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typedef posh_i16_t int16;
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typedef posh_u32_t uint32;
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typedef posh_i32_t int32;
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//#if NV_OS_DARWIN
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// OSX-64 is supposed to be LP64 (longs and pointers are 64 bits), thus uint64 is defined as
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// unsigned long. However, some OSX headers define it as unsigned long long, producing errors,
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// even though both types are 64 bit. Ideally posh should handle that, but it has not been
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// updated in ages, so here I'm just falling back to the standard C99 types defined in inttypes.h
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//#include <inttypes.h>
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//typedef posh_u64_t uint64_t;
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//typedef posh_i64_t int64_t;
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//#else
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typedef posh_u64_t uint64;
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typedef posh_i64_t int64;
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//#endif
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#if NV_OS_DARWIN
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// To avoid duplicate definitions.
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#define _UINT64
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#endif
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#endif
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// Aliases
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typedef uint32 uint;
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// Version string:
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#define NV_VERSION_STRING \
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NV_OS_STRING "/" NV_CC_STRING "/" NV_CPU_STRING"/" \
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NV_ENDIAN_STRING"-endian - " __DATE__ "-" __TIME__
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// Disable copy constructor and assignment operator.
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#if NV_CC_CPP11
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#define NV_FORBID_COPY(C) \
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C( const C & ) = delete; \
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C &operator=( const C & ) = delete
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#else
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#define NV_FORBID_COPY(C) \
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private: \
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C( const C & ); \
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C &operator=( const C & )
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#endif
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// Disable dynamic allocation on the heap.
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// See Prohibiting Heap-Based Objects in More Effective C++.
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#define NV_FORBID_HEAPALLOC() \
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private: \
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void *operator new(size_t size); \
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void *operator new[](size_t size)
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//static void *operator new(size_t size); \
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//static void *operator new[](size_t size);
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// String concatenation macros.
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#define NV_STRING_JOIN2(arg1, arg2) NV_DO_STRING_JOIN2(arg1, arg2)
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#define NV_DO_STRING_JOIN2(arg1, arg2) arg1 ## arg2
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#define NV_STRING_JOIN3(arg1, arg2, arg3) NV_DO_STRING_JOIN3(arg1, arg2, arg3)
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#define NV_DO_STRING_JOIN3(arg1, arg2, arg3) arg1 ## arg2 ## arg3
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#define NV_STRING2(x) #x
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#define NV_STRING(x) NV_STRING2(x)
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#if NV_CC_MSVC
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#define NV_MULTI_LINE_MACRO_BEGIN do {
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#define NV_MULTI_LINE_MACRO_END \
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__pragma(warning(push)) \
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__pragma(warning(disable:4127)) \
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} while(false) \
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__pragma(warning(pop))
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#else
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#define NV_MULTI_LINE_MACRO_BEGIN do {
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#define NV_MULTI_LINE_MACRO_END } while(false)
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#endif
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#if NV_CC_CPP11
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#define nvStaticCheck(x) static_assert((x), "Static assert "#x" failed")
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#else
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#define nvStaticCheck(x) typedef char NV_STRING_JOIN2(__static_assert_,__LINE__)[(x)]
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#endif
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#define NV_COMPILER_CHECK(x) nvStaticCheck(x) // I like this name best.
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// Make sure type definitions are fine.
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NV_COMPILER_CHECK(sizeof(int8) == 1);
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NV_COMPILER_CHECK(sizeof(uint8) == 1);
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NV_COMPILER_CHECK(sizeof(int16) == 2);
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NV_COMPILER_CHECK(sizeof(uint16) == 2);
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NV_COMPILER_CHECK(sizeof(int32) == 4);
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NV_COMPILER_CHECK(sizeof(uint32) == 4);
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NV_COMPILER_CHECK(sizeof(int32) == 4);
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NV_COMPILER_CHECK(sizeof(uint32) == 4);
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#include <stddef.h> // for size_t
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template <typename T, size_t N> char (&ArraySizeHelper(T (&array)[N]))[N];
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#define NV_ARRAY_SIZE(x) sizeof(ArraySizeHelper(x))
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//#define NV_ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
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#if 0 // Disabled in The Witness.
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#if NV_CC_MSVC
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#define NV_MESSAGE(x) message(__FILE__ "(" NV_STRING(__LINE__) ") : " x)
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#else
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#define NV_MESSAGE(x) message(x)
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#endif
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#else
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#define NV_MESSAGE(x)
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#endif
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// Startup initialization macro.
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#define NV_AT_STARTUP(some_code) \
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namespace { \
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static struct NV_STRING_JOIN2(AtStartup_, __LINE__) { \
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NV_STRING_JOIN2(AtStartup_, __LINE__)() { some_code; } \
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} \
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NV_STRING_JOIN3(AtStartup_, __LINE__, Instance); \
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}
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namespace nv {
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template <typename F>
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struct ScopeExit {
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ScopeExit(F f) : f(f) {}
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~ScopeExit() { f(); }
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F f;
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};
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struct ExitScopeHelp {
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template<typename T>
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ScopeExit<T> operator+(T t) { return t; }
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};
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}
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#define defer const auto& __attribute__((unused)) NV_STRING_JOIN2(defer__, __LINE__) = nv::ExitScopeHelp() + [&]()
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// Indicate the compiler that the parameter is not used to suppress compier warnings.
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#if NV_CC_MSVC
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#define NV_UNUSED(a) ((a)=(a))
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#else
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#define NV_UNUSED(a) _Pragma(NV_STRING(unused(a)))
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#endif
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#if NV_CC_GNUC || NV_CC_CLANG
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#define NV_LIKELY(x) __builtin_expect(!!(x), 1)
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#define NV_UNLIKELY(x) __builtin_expect(!!(x), 0)
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#else
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#define NV_LIKELY(x) x
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#define NV_UNLIKELY(x) x
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#endif
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// Null index. @@ Move this somewhere else... it's only used by nvmesh.
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//const unsigned int NIL = unsigned int(~0);
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//#define NIL uint(~0)
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// Null pointer.
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#ifndef NULL
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#define NULL 0
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#endif
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// Platform includes
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#if NV_CC_MSVC
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# if NV_OS_WIN32
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# include "DefsVcWin32.h"
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# elif NV_OS_XBOX
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# include "DefsVcXBox.h"
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# else
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# error "MSVC: Platform not supported"
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# endif
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#elif NV_CC_GNUC
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# if NV_OS_LINUX
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# include "DefsGnucLinux.h"
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# elif NV_OS_DARWIN || NV_OS_FREEBSD || NV_OS_NETBSD || NV_OS_OPENBSD
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# include "DefsGnucDarwin.h"
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# elif NV_OS_MINGW
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# include "DefsGnucWin32.h"
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# elif NV_OS_CYGWIN
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# error "GCC: Cygwin not supported"
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# else
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# error "GCC: Platform not supported"
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# endif
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#endif
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#endif // NV_CORE_H
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