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