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suyu/src/core/core_timing_util.h
Morph 99ceb03a1c general: Convert source file copyright comments over to SPDX
This formats all copyright comments according to SPDX formatting guidelines.
Additionally, this resolves the remaining GPLv2 only licensed files by relicensing them to GPLv2.0-or-later.
2022-04-23 05:55:32 -04:00

58 lines
1.9 KiB
C++

// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <chrono>
#include "common/common_types.h"
#include "core/hardware_properties.h"
namespace Core::Timing {
namespace detail {
constexpr u64 CNTFREQ_ADJUSTED = Hardware::CNTFREQ / 1000;
constexpr u64 BASE_CLOCK_RATE_ADJUSTED = Hardware::BASE_CLOCK_RATE / 1000;
} // namespace detail
[[nodiscard]] constexpr s64 msToCycles(std::chrono::milliseconds ms) {
return ms.count() * detail::BASE_CLOCK_RATE_ADJUSTED;
}
[[nodiscard]] constexpr s64 usToCycles(std::chrono::microseconds us) {
return us.count() * detail::BASE_CLOCK_RATE_ADJUSTED / 1000;
}
[[nodiscard]] constexpr s64 nsToCycles(std::chrono::nanoseconds ns) {
return ns.count() * detail::BASE_CLOCK_RATE_ADJUSTED / 1000000;
}
[[nodiscard]] constexpr u64 msToClockCycles(std::chrono::milliseconds ms) {
return static_cast<u64>(ms.count()) * detail::CNTFREQ_ADJUSTED;
}
[[nodiscard]] constexpr u64 usToClockCycles(std::chrono::microseconds us) {
return us.count() * detail::CNTFREQ_ADJUSTED / 1000;
}
[[nodiscard]] constexpr u64 nsToClockCycles(std::chrono::nanoseconds ns) {
return ns.count() * detail::CNTFREQ_ADJUSTED / 1000000;
}
[[nodiscard]] constexpr u64 CpuCyclesToClockCycles(u64 ticks) {
return ticks * detail::CNTFREQ_ADJUSTED / detail::BASE_CLOCK_RATE_ADJUSTED;
}
[[nodiscard]] constexpr std::chrono::milliseconds CyclesToMs(s64 cycles) {
return std::chrono::milliseconds(cycles / detail::BASE_CLOCK_RATE_ADJUSTED);
}
[[nodiscard]] constexpr std::chrono::nanoseconds CyclesToNs(s64 cycles) {
return std::chrono::nanoseconds(cycles * 1000000 / detail::BASE_CLOCK_RATE_ADJUSTED);
}
[[nodiscard]] constexpr std::chrono::microseconds CyclesToUs(s64 cycles) {
return std::chrono::microseconds(cycles * 1000 / detail::BASE_CLOCK_RATE_ADJUSTED);
}
} // namespace Core::Timing