mirror of https://github.com/yuzu-emu/yuzu.git
65 lines
1.5 KiB
C++
65 lines
1.5 KiB
C++
// Copyright 2008 Dolphin Emulator Project / 2017 Citra Emulator Project
|
|
// Licensed under GPLv2+
|
|
// Refer to the license.txt file included.
|
|
|
|
#pragma once
|
|
|
|
#include "common/common_types.h"
|
|
|
|
namespace Core::Timing {
|
|
|
|
// The below clock rate is based on Switch's clockspeed being widely known as 1.020GHz
|
|
// The exact value used is of course unverified.
|
|
constexpr u64 BASE_CLOCK_RATE = 1019215872; // Switch clock speed is 1020MHz un/docked
|
|
|
|
inline s64 msToCycles(int ms) {
|
|
// since ms is int there is no way to overflow
|
|
return BASE_CLOCK_RATE * static_cast<s64>(ms) / 1000;
|
|
}
|
|
|
|
inline s64 msToCycles(float ms) {
|
|
return static_cast<s64>(BASE_CLOCK_RATE * (0.001f) * ms);
|
|
}
|
|
|
|
inline s64 msToCycles(double ms) {
|
|
return static_cast<s64>(BASE_CLOCK_RATE * (0.001) * ms);
|
|
}
|
|
|
|
inline s64 usToCycles(float us) {
|
|
return static_cast<s64>(BASE_CLOCK_RATE * (0.000001f) * us);
|
|
}
|
|
|
|
inline s64 usToCycles(int us) {
|
|
return (BASE_CLOCK_RATE * static_cast<s64>(us) / 1000000);
|
|
}
|
|
|
|
s64 usToCycles(s64 us);
|
|
|
|
s64 usToCycles(u64 us);
|
|
|
|
inline s64 nsToCycles(float ns) {
|
|
return static_cast<s64>(BASE_CLOCK_RATE * (0.000000001f) * ns);
|
|
}
|
|
|
|
inline s64 nsToCycles(int ns) {
|
|
return BASE_CLOCK_RATE * static_cast<s64>(ns) / 1000000000;
|
|
}
|
|
|
|
s64 nsToCycles(s64 ns);
|
|
|
|
s64 nsToCycles(u64 ns);
|
|
|
|
inline u64 cyclesToNs(s64 cycles) {
|
|
return cycles * 1000000000 / BASE_CLOCK_RATE;
|
|
}
|
|
|
|
inline s64 cyclesToUs(s64 cycles) {
|
|
return cycles * 1000000 / BASE_CLOCK_RATE;
|
|
}
|
|
|
|
inline u64 cyclesToMs(s64 cycles) {
|
|
return cycles * 1000 / BASE_CLOCK_RATE;
|
|
}
|
|
|
|
} // namespace Core::Timing
|