bgfx/3rdparty/nvtt/nvcore/nvcore.h
2015-12-21 09:35:42 -08:00

370 lines
9.1 KiB
C++

// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
#ifndef NV_CORE_H
#define NV_CORE_H
#define NVCORE_SHARED 0
#define NV_NO_ASSERT 0
// Function linkage
#if NVCORE_SHARED
#ifdef NVCORE_EXPORTS
#define NVCORE_API DLL_EXPORT
#define NVCORE_CLASS DLL_EXPORT_CLASS
#else
#define NVCORE_API DLL_IMPORT
#define NVCORE_CLASS DLL_IMPORT
#endif
#else // NVCORE_SHARED
#define NVCORE_API
#define NVCORE_CLASS
#endif // NVCORE_SHARED
// Platform definitions
#include "posh.h"
#define NV_OS_STRING POSH_OS_STRING
#if defined POSH_OS_LINUX
# define NV_OS_LINUX 1
# define NV_OS_UNIX 1
#elif defined POSH_OS_ORBIS
# define NV_OS_ORBIS 1
#elif defined POSH_OS_FREEBSD
# define NV_OS_FREEBSD 1
# define NV_OS_UNIX 1
#elif defined POSH_OS_OPENBSD
# define NV_OS_OPENBSD 1
# define NV_OS_UNIX 1
#elif defined POSH_OS_CYGWIN32
# define NV_OS_CYGWIN 1
#elif defined POSH_OS_MINGW
# define NV_OS_MINGW 1
# define NV_OS_WIN32 1
#elif defined POSH_OS_OSX
# define NV_OS_DARWIN 1
# define NV_OS_UNIX 1
#elif defined POSH_OS_IOS
# define NV_OS_DARWIN 1 //ACS should we keep this on IOS?
# define NV_OS_UNIX 1
# define NV_OS_IOS 1
#elif defined POSH_OS_UNIX
# define NV_OS_UNIX 1
#elif defined POSH_OS_WIN64
# define NV_OS_WIN32 1
# define NV_OS_WIN64 1
#elif defined POSH_OS_WIN32
# define NV_OS_WIN32 1
#elif defined POSH_OS_XBOX
# define NV_OS_XBOX 1
#else
# error "Unsupported OS"
#endif
#ifndef NV_OS_WIN32
# define NV_OS_WIN32 0
#endif // NV_OS_WIN32
#ifndef NV_OS_WIN64
# define NV_OS_WIN64 0
#endif // NV_OS_WIN64
#ifndef NV_OS_MINGW
# define NV_OS_MINGW 0
#endif // NV_OS_MINGW
#ifndef NV_OS_CYGWIN
# define NV_OS_CYGWIN 0
#endif // NV_OS_CYGWIN
#ifndef NV_OS_LINUX
# define NV_OS_LINUX 0
#endif // NV_OS_LINUX
#ifndef NV_OS_FREEBSD
# define NV_OS_FREEBSD 0
#endif // NV_OS_FREEBSD
#ifndef NV_OS_OPENBSD
# define NV_OS_OPENBSD 0
#endif // NV_OS_OPENBSD
#ifndef NV_OS_UNIX
# define NV_OS_UNIX 0
#endif // NV_OS_UNIX
#ifndef NV_OS_DARWIN
# define NV_OS_DARWIN 0
#endif // NV_OS_DARWIN
#ifndef NV_OS_XBOX
# define NV_OS_XBOX 0
#endif // NV_OS_XBOX
#ifndef NV_OS_ORBIS
# define NV_OS_ORBIS 0
#endif // NV_OS_ORBIS
#ifndef NV_OS_IOS
# define NV_OS_IOS 0
#endif // NV_OS_IOS
// Threading:
// some platforms don't implement __thread or similar for thread-local-storage
#if NV_OS_UNIX || NV_OS_ORBIS || NV_OS_IOS //ACStodoIOS darwin instead of ios?
# define NV_OS_USE_PTHREAD 1
# if NV_OS_DARWIN || NV_OS_IOS
# define NV_OS_HAS_TLS_QUALIFIER 0
# else
# define NV_OS_HAS_TLS_QUALIFIER 1
# endif
#else
# define NV_OS_USE_PTHREAD 0
# define NV_OS_HAS_TLS_QUALIFIER 1
#endif
// CPUs:
#define NV_CPU_STRING POSH_CPU_STRING
#if defined POSH_CPU_X86_64
//# define NV_CPU_X86 1
# define NV_CPU_X86_64 1
#elif defined POSH_CPU_X86
# define NV_CPU_X86 1
#elif defined POSH_CPU_PPC
# define NV_CPU_PPC 1
#elif defined POSH_CPU_STRONGARM
# define NV_CPU_ARM 1
#elif defined POSH_CPU_AARCH64
# define NV_CPU_AARCH64 1
#else
# error "Unsupported CPU"
#endif
#ifndef NV_CPU_X86
# define NV_CPU_X86 0
#endif // NV_CPU_X86
#ifndef NV_CPU_X86_64
# define NV_CPU_X86_64 0
#endif // NV_CPU_X86_64
#ifndef NV_CPU_PPC
# define NV_CPU_PPC 0
#endif // NV_CPU_PPC
#ifndef NV_CPU_ARM
# define NV_CPU_ARM 0
#endif // NV_CPU_ARM
#ifndef NV_CPU_AARCH64
# define NV_CPU_AARCH64 0
#endif // NV_CPU_AARCH64
// Compiler:
#if defined POSH_COMPILER_CLANG
# define NV_CC_CLANG 1
# define NV_CC_GNUC 1 // Clang is compatible with GCC.
# define NV_CC_STRING "clang"
# pragma clang diagnostic ignored "-Wmissing-braces"
# pragma clang diagnostic ignored "-Wshadow"
# pragma clang diagnostic ignored "-Wunused-local-typedef"
# pragma clang diagnostic ignored "-Wunused-function"
# pragma clang diagnostic ignored "-Wunused-variable"
# pragma clang diagnostic ignored "-Wunused-parameter"
# pragma clang diagnostic ignored "-Wsometimes-uninitialized"
#elif defined POSH_COMPILER_GCC
# define NV_CC_GNUC 1
# define NV_CC_STRING "gcc"
# pragma GCC diagnostic ignored "-Wshadow"
# pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
# pragma GCC diagnostic ignored "-Wunused-function"
# pragma GCC diagnostic ignored "-Wunused-but-set-variable"
# pragma GCC diagnostic ignored "-Wunused-variable"
# pragma GCC diagnostic ignored "-Wunused-parameter"
#elif defined POSH_COMPILER_MSVC
# define NV_CC_MSVC 1
# define NV_CC_STRING "msvc"
#else
# error "Unsupported compiler"
#endif
#ifndef NV_CC_GNUC
# define NV_CC_GNUC 0
#endif // NV_CC_GNUC
#ifndef NV_CC_MSVC
# define NV_CC_MSVC 0
#endif // NV_CC_MSVC
#ifndef NV_CC_CLANG
# define NV_CC_CLANG 0
#endif // NV_CC_CLANG
#if NV_CC_MSVC
#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.
#else
// @@ IC: This works in CLANG, about GCC?
// @@ ES: Doesn't work in gcc. These 3 features are available in GCC >= 4.4.
#ifdef __clang__
#define NV_CC_CPP11 (__has_feature(cxx_deleted_functions) && __has_feature(cxx_rvalue_references) && __has_feature(cxx_static_assert))
#elif defined __GNUC__
#define NV_CC_CPP11 ( __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
#endif
#endif
// Endiannes:
#define NV_LITTLE_ENDIAN POSH_LITTLE_ENDIAN
#define NV_BIG_ENDIAN POSH_BIG_ENDIAN
#define NV_ENDIAN_STRING POSH_ENDIAN_STRING
// Define the right printf prefix for size_t arguments:
#if POSH_64BIT_POINTER
# define NV_SIZET_PRINTF_PREFIX POSH_I64_PRINTF_PREFIX
#else
# define NV_SIZET_PRINTF_PREFIX
#endif
// Type definitions:
typedef posh_u8_t uint8;
typedef posh_i8_t int8;
typedef posh_u16_t uint16;
typedef posh_i16_t int16;
typedef posh_u32_t uint32;
typedef posh_i32_t int32;
typedef posh_u64_t uint64;
typedef posh_i64_t int64;
// Aliases
typedef uint32 uint;
// Version string:
#define NV_VERSION_STRING \
NV_OS_STRING "/" NV_CC_STRING "/" NV_CPU_STRING"/" \
NV_ENDIAN_STRING"-endian - " __DATE__ "-" __TIME__
// Disable copy constructor and assignment operator.
#if NV_CC_CPP11
#define NV_FORBID_COPY(C) \
C( const C & ) = delete; \
C &operator=( const C & ) = delete
#else
#define NV_FORBID_COPY(C) \
private: \
C( const C & ); \
C &operator=( const C & )
#endif
// Disable dynamic allocation on the heap.
// See Prohibiting Heap-Based Objects in More Effective C++.
#define NV_FORBID_HEAPALLOC() \
private: \
void *operator new(size_t size); \
void *operator new[](size_t size)
// String concatenation macros.
#define NV_STRING_JOIN2(arg1, arg2) NV_DO_STRING_JOIN2(arg1, arg2)
#define NV_DO_STRING_JOIN2(arg1, arg2) arg1 ## arg2
#define NV_STRING_JOIN3(arg1, arg2, arg3) NV_DO_STRING_JOIN3(arg1, arg2, arg3)
#define NV_DO_STRING_JOIN3(arg1, arg2, arg3) arg1 ## arg2 ## arg3
#define NV_STRING2(x) #x
#define NV_STRING(x) NV_STRING2(x)
#if NV_CC_MSVC
#define NV_MULTI_LINE_MACRO_BEGIN do {
#define NV_MULTI_LINE_MACRO_END \
__pragma(warning(push)) \
__pragma(warning(disable:4127)) \
} while(false) \
__pragma(warning(pop))
#else
#define NV_MULTI_LINE_MACRO_BEGIN do {
#define NV_MULTI_LINE_MACRO_END } while(false)
#endif
#if NV_CC_CPP11
#define nvStaticCheck(x) static_assert((x), "Static assert "#x" failed")
#else
#define nvStaticCheck(x) typedef char NV_STRING_JOIN2(__static_assert_,__LINE__)[(x)]
#endif
#define NV_COMPILER_CHECK(x) nvStaticCheck(x) // I like this name best.
// Make sure type definitions are fine.
NV_COMPILER_CHECK(sizeof(int8) == 1);
NV_COMPILER_CHECK(sizeof(uint8) == 1);
NV_COMPILER_CHECK(sizeof(int16) == 2);
NV_COMPILER_CHECK(sizeof(uint16) == 2);
NV_COMPILER_CHECK(sizeof(int32) == 4);
NV_COMPILER_CHECK(sizeof(uint32) == 4);
NV_COMPILER_CHECK(sizeof(int32) == 4);
NV_COMPILER_CHECK(sizeof(uint32) == 4);
#define NV_ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
#if 0 // Disabled in The Witness.
#if NV_CC_MSVC
#define NV_MESSAGE(x) message(__FILE__ "(" NV_STRING(__LINE__) ") : " x)
#else
#define NV_MESSAGE(x) message(x)
#endif
#else
#define NV_MESSAGE(x)
#endif
// Startup initialization macro.
#define NV_AT_STARTUP(some_code) \
namespace { \
static struct NV_STRING_JOIN2(AtStartup_, __LINE__) { \
NV_STRING_JOIN2(AtStartup_, __LINE__)() { some_code; } \
} \
NV_STRING_JOIN3(AtStartup_, __LINE__, Instance); \
}
// Indicate the compiler that the parameter is not used to suppress compier warnings.
#define NV_UNUSED(a) ((a)=(a))
// Null index. @@ Move this somewhere else... it's only used by nvmesh.
//const unsigned int NIL = unsigned int(~0);
//#define NIL uint(~0)
// Null pointer.
#ifndef NULL
#define NULL 0
#endif
// Platform includes
#if NV_CC_MSVC
# if NV_OS_WIN32
# include "defsvcwin32.h"
# elif NV_OS_XBOX
# include "defsvcxbox.h"
# else
# error "MSVC: Platform not supported"
# endif
#elif NV_CC_GNUC
# if NV_OS_LINUX
# include "defsgnuclinux.h"
# elif NV_OS_DARWIN || NV_OS_FREEBSD || NV_OS_OPENBSD
# include "defsgnucdarwin.h"
# elif NV_OS_MINGW
# include "defsgnucwin32.h"
# elif NV_OS_CYGWIN
# error "GCC: Cygwin not supported"
# else
# error "GCC: Platform not supported"
# endif
#endif
#endif // NV_CORE_H