diff options
-rw-r--r-- | src/core/CMakeLists.txt | 1 | ||||
-rw-r--r-- | src/core/core_timing_util.cpp | 84 | ||||
-rw-r--r-- | src/core/core_timing_util.h | 61 |
3 files changed, 48 insertions, 98 deletions
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt index 28196d26a..c6bdf72ec 100644 --- a/src/core/CMakeLists.txt +++ b/src/core/CMakeLists.txt @@ -19,7 +19,6 @@ add_library(core STATIC core.h core_timing.cpp core_timing.h - core_timing_util.cpp core_timing_util.h cpu_manager.cpp cpu_manager.h diff --git a/src/core/core_timing_util.cpp b/src/core/core_timing_util.cpp deleted file mode 100644 index 8ce8e602e..000000000 --- a/src/core/core_timing_util.cpp +++ /dev/null @@ -1,84 +0,0 @@ -// Copyright 2008 Dolphin Emulator Project / 2017 Citra Emulator Project -// Licensed under GPLv2+ -// Refer to the license.txt file included. - -#include "core/core_timing_util.h" - -#include <cinttypes> -#include <limits> -#include "common/logging/log.h" -#include "common/uint128.h" -#include "core/hardware_properties.h" - -namespace Core::Timing { - -constexpr u64 MAX_VALUE_TO_MULTIPLY = std::numeric_limits<s64>::max() / Hardware::BASE_CLOCK_RATE; - -s64 msToCycles(std::chrono::milliseconds ms) { - if (static_cast<u64>(ms.count() / 1000) > MAX_VALUE_TO_MULTIPLY) { - LOG_ERROR(Core_Timing, "Integer overflow, use max value"); - return std::numeric_limits<s64>::max(); - } - if (static_cast<u64>(ms.count()) > MAX_VALUE_TO_MULTIPLY) { - LOG_DEBUG(Core_Timing, "Time very big, do rounding"); - return Hardware::BASE_CLOCK_RATE * (ms.count() / 1000); - } - return (Hardware::BASE_CLOCK_RATE * ms.count()) / 1000; -} - -s64 usToCycles(std::chrono::microseconds us) { - if (static_cast<u64>(us.count() / 1000000) > MAX_VALUE_TO_MULTIPLY) { - LOG_ERROR(Core_Timing, "Integer overflow, use max value"); - return std::numeric_limits<s64>::max(); - } - if (static_cast<u64>(us.count()) > MAX_VALUE_TO_MULTIPLY) { - LOG_DEBUG(Core_Timing, "Time very big, do rounding"); - return Hardware::BASE_CLOCK_RATE * (us.count() / 1000000); - } - return (Hardware::BASE_CLOCK_RATE * us.count()) / 1000000; -} - -s64 nsToCycles(std::chrono::nanoseconds ns) { - const u128 temporal = Common::Multiply64Into128(ns.count(), Hardware::BASE_CLOCK_RATE); - return Common::Divide128On32(temporal, static_cast<u32>(1000000000)).first; -} - -u64 msToClockCycles(std::chrono::milliseconds ns) { - const u128 temp = Common::Multiply64Into128(ns.count(), Hardware::CNTFREQ); - return Common::Divide128On32(temp, 1000).first; -} - -u64 usToClockCycles(std::chrono::microseconds ns) { - const u128 temp = Common::Multiply64Into128(ns.count(), Hardware::CNTFREQ); - return Common::Divide128On32(temp, 1000000).first; -} - -u64 nsToClockCycles(std::chrono::nanoseconds ns) { - const u128 temp = Common::Multiply64Into128(ns.count(), Hardware::CNTFREQ); - return Common::Divide128On32(temp, 1000000000).first; -} - -u64 CpuCyclesToClockCycles(u64 ticks) { - const u128 temporal = Common::Multiply64Into128(ticks, Hardware::CNTFREQ); - return Common::Divide128On32(temporal, static_cast<u32>(Hardware::BASE_CLOCK_RATE)).first; -} - -std::chrono::milliseconds CyclesToMs(s64 cycles) { - const u128 temporal = Common::Multiply64Into128(cycles, 1000); - u64 ms = Common::Divide128On32(temporal, static_cast<u32>(Hardware::BASE_CLOCK_RATE)).first; - return std::chrono::milliseconds(ms); -} - -std::chrono::nanoseconds CyclesToNs(s64 cycles) { - const u128 temporal = Common::Multiply64Into128(cycles, 1000000000); - u64 ns = Common::Divide128On32(temporal, static_cast<u32>(Hardware::BASE_CLOCK_RATE)).first; - return std::chrono::nanoseconds(ns); -} - -std::chrono::microseconds CyclesToUs(s64 cycles) { - const u128 temporal = Common::Multiply64Into128(cycles, 1000000); - u64 us = Common::Divide128On32(temporal, static_cast<u32>(Hardware::BASE_CLOCK_RATE)).first; - return std::chrono::microseconds(us); -} - -} // namespace Core::Timing diff --git a/src/core/core_timing_util.h b/src/core/core_timing_util.h index e4a046bf9..14c36a485 100644 --- a/src/core/core_timing_util.h +++ b/src/core/core_timing_util.h @@ -1,24 +1,59 @@ -// Copyright 2008 Dolphin Emulator Project / 2017 Citra Emulator Project -// Licensed under GPLv2+ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version // Refer to the license.txt file included. #pragma once #include <chrono> + #include "common/common_types.h" +#include "core/hardware_properties.h" namespace Core::Timing { -s64 msToCycles(std::chrono::milliseconds ms); -s64 usToCycles(std::chrono::microseconds us); -s64 nsToCycles(std::chrono::nanoseconds ns); -u64 msToClockCycles(std::chrono::milliseconds ns); -u64 usToClockCycles(std::chrono::microseconds ns); -u64 nsToClockCycles(std::chrono::nanoseconds ns); -std::chrono::milliseconds CyclesToMs(s64 cycles); -std::chrono::nanoseconds CyclesToNs(s64 cycles); -std::chrono::microseconds CyclesToUs(s64 cycles); - -u64 CpuCyclesToClockCycles(u64 ticks); +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 |