From 234b5ff6a999d7d69cdcdf214e0c3984cdab11cf Mon Sep 17 00:00:00 2001 From: Fernando Sahmkow Date: Sun, 9 Feb 2020 16:53:22 -0400 Subject: Common: Implement WallClock Interface and implement a native clock for x64 --- src/common/wall_clock.h | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 src/common/wall_clock.h (limited to 'src/common/wall_clock.h') diff --git a/src/common/wall_clock.h b/src/common/wall_clock.h new file mode 100644 index 000000000..6f763d74b --- /dev/null +++ b/src/common/wall_clock.h @@ -0,0 +1,40 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include + +#include "common/common_types.h" + +namespace Common { + +class WallClock { +public: + virtual std::chrono::nanoseconds GetTimeNS() = 0; + virtual std::chrono::microseconds GetTimeUS() = 0; + virtual std::chrono::milliseconds GetTimeMS() = 0; + virtual u64 GetClockCycles() = 0; + virtual u64 GetCPUCycles() = 0; + + /// Tells if the wall clock, uses the host CPU's hardware clock + bool IsNative() const { + return is_native; + } + +protected: + WallClock(u64 emulated_cpu_frequency, u64 emulated_clock_frequency, bool is_native) + : emulated_cpu_frequency{emulated_cpu_frequency}, + emulated_clock_frequency{emulated_clock_frequency}, is_native{is_native} {} + + u64 emulated_cpu_frequency; + u64 emulated_clock_frequency; + +private: + bool is_native; +}; + +WallClock* CreateBestMatchingClock(u32 emulated_cpu_frequency, u32 emulated_clock_frequency); + +} // namespace Common -- cgit v1.2.3