forked from dolphin-emu/dolphin
93 lines
2.4 KiB
C++
93 lines
2.4 KiB
C++
// Copyright 2009 Dolphin Emulator Project
|
|
// Licensed under GPLv2+
|
|
// Refer to the license.txt file included.
|
|
|
|
#pragma once
|
|
|
|
#include <cstddef>
|
|
#include <string>
|
|
#include "Common/CommonTypes.h"
|
|
|
|
// Will fail to compile on a non-array:
|
|
template <typename T, size_t N>
|
|
constexpr size_t ArraySize(T (&arr)[N])
|
|
{
|
|
return N;
|
|
}
|
|
|
|
#define b2(x) ((x) | ((x) >> 1))
|
|
#define b4(x) (b2(x) | (b2(x) >> 2))
|
|
#define b8(x) (b4(x) | (b4(x) >> 4))
|
|
#define b16(x) (b8(x) | (b8(x) >> 8))
|
|
#define b32(x) (b16(x) | (b16(x) >> 16))
|
|
#define ROUND_UP_POW2(x) (b32(x - 1) + 1)
|
|
|
|
#ifndef _WIN32
|
|
|
|
// go to debugger mode
|
|
#define Crash() \
|
|
{ \
|
|
__builtin_trap(); \
|
|
}
|
|
|
|
// GCC 4.8 defines all the rotate functions now
|
|
// Small issue with GCC's lrotl/lrotr intrinsics is they are still 32bit while we require 64bit
|
|
#ifndef _rotl
|
|
inline u32 _rotl(u32 x, int shift)
|
|
{
|
|
shift &= 31;
|
|
if (!shift)
|
|
return x;
|
|
return (x << shift) | (x >> (32 - shift));
|
|
}
|
|
|
|
inline u32 _rotr(u32 x, int shift)
|
|
{
|
|
shift &= 31;
|
|
if (!shift)
|
|
return x;
|
|
return (x >> shift) | (x << (32 - shift));
|
|
}
|
|
#endif
|
|
|
|
inline u64 _rotl64(u64 x, unsigned int shift)
|
|
{
|
|
unsigned int n = shift % 64;
|
|
return (x << n) | (x >> (64 - n));
|
|
}
|
|
|
|
inline u64 _rotr64(u64 x, unsigned int shift)
|
|
{
|
|
unsigned int n = shift % 64;
|
|
return (x >> n) | (x << (64 - n));
|
|
}
|
|
|
|
#else // WIN32
|
|
// Function Cross-Compatibility
|
|
#define strcasecmp _stricmp
|
|
#define strncasecmp _strnicmp
|
|
#define unlink _unlink
|
|
#define vscprintf _vscprintf
|
|
|
|
// 64 bit offsets for Windows
|
|
#define fseeko _fseeki64
|
|
#define ftello _ftelli64
|
|
#define atoll _atoi64
|
|
#define stat _stat64
|
|
#define fstat _fstat64
|
|
#define fileno _fileno
|
|
|
|
extern "C" {
|
|
__declspec(dllimport) void __stdcall DebugBreak(void);
|
|
}
|
|
#define Crash() \
|
|
{ \
|
|
DebugBreak(); \
|
|
}
|
|
#endif // WIN32 ndef
|
|
|
|
// Generic function to get last error message.
|
|
// Call directly after the command or use the error num.
|
|
// This function might change the error code.
|
|
std::string GetLastErrorMsg();
|