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-rw-r--r--src/common/CMakeLists.txt1
-rw-r--r--src/common/bit_cast.h20
-rw-r--r--src/common/input.h2
-rw-r--r--src/common/overflow.h22
-rw-r--r--src/common/settings.h2
-rw-r--r--src/common/steady_clock.cpp25
-rw-r--r--src/common/steady_clock.h11
-rw-r--r--src/common/x64/native_clock.cpp38
-rw-r--r--src/common/x64/native_clock.h5
9 files changed, 108 insertions, 18 deletions
diff --git a/src/common/CMakeLists.txt b/src/common/CMakeLists.txt
index 58ff5f2f3..61ab68864 100644
--- a/src/common/CMakeLists.txt
+++ b/src/common/CMakeLists.txt
@@ -91,6 +91,7 @@ add_library(common STATIC
multi_level_page_table.h
nvidia_flags.cpp
nvidia_flags.h
+ overflow.h
page_table.cpp
page_table.h
param_package.cpp
diff --git a/src/common/bit_cast.h b/src/common/bit_cast.h
index 535148b4d..c6110c542 100644
--- a/src/common/bit_cast.h
+++ b/src/common/bit_cast.h
@@ -3,19 +3,21 @@
#pragma once
-#include <cstring>
-#include <type_traits>
+#include <version>
+
+#ifdef __cpp_lib_bit_cast
+#include <bit>
+#endif
namespace Common {
template <typename To, typename From>
-[[nodiscard]] std::enable_if_t<sizeof(To) == sizeof(From) && std::is_trivially_copyable_v<From> &&
- std::is_trivially_copyable_v<To>,
- To>
-BitCast(const From& src) noexcept {
- To dst;
- std::memcpy(&dst, &src, sizeof(To));
- return dst;
+constexpr inline To BitCast(const From& from) {
+#ifdef __cpp_lib_bit_cast
+ return std::bit_cast<To>(from);
+#else
+ return __builtin_bit_cast(To, from);
+#endif
}
} // namespace Common
diff --git a/src/common/input.h b/src/common/input.h
index b5748a6c8..98e934685 100644
--- a/src/common/input.h
+++ b/src/common/input.h
@@ -46,7 +46,7 @@ enum class PollingMode {
// Constant polling of buttons, analogs and motion data
Active,
// Only update on button change, digital analogs
- Pasive,
+ Passive,
// Enable near field communication polling
NFC,
// Enable infrared camera polling
diff --git a/src/common/overflow.h b/src/common/overflow.h
new file mode 100644
index 000000000..44d8e7e73
--- /dev/null
+++ b/src/common/overflow.h
@@ -0,0 +1,22 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <type_traits>
+#include "bit_cast.h"
+
+namespace Common {
+
+template <typename T>
+ requires(std::is_integral_v<T> && std::is_signed_v<T>)
+inline T WrappingAdd(T lhs, T rhs) {
+ using U = std::make_unsigned_t<T>;
+
+ U lhs_u = BitCast<U>(lhs);
+ U rhs_u = BitCast<U>(rhs);
+
+ return BitCast<T>(lhs_u + rhs_u);
+}
+
+} // namespace Common
diff --git a/src/common/settings.h b/src/common/settings.h
index 1ae28ce93..b77a1580a 100644
--- a/src/common/settings.h
+++ b/src/common/settings.h
@@ -503,7 +503,7 @@ struct Values {
Setting<bool> tas_loop{false, "tas_loop"};
Setting<bool> mouse_panning{false, "mouse_panning"};
- Setting<u8, true> mouse_panning_sensitivity{10, 1, 100, "mouse_panning_sensitivity"};
+ Setting<u8, true> mouse_panning_sensitivity{50, 1, 100, "mouse_panning_sensitivity"};
Setting<bool> mouse_enabled{false, "mouse_enabled"};
Setting<bool> emulate_analog_keyboard{false, "emulate_analog_keyboard"};
diff --git a/src/common/steady_clock.cpp b/src/common/steady_clock.cpp
index 0d5908aa7..782859196 100644
--- a/src/common/steady_clock.cpp
+++ b/src/common/steady_clock.cpp
@@ -23,6 +23,19 @@ static s64 WindowsQueryPerformanceCounter() {
QueryPerformanceCounter(&counter);
return counter.QuadPart;
}
+
+static s64 GetSystemTimeNS() {
+ // GetSystemTimePreciseAsFileTime returns the file time in 100ns units.
+ static constexpr s64 Multiplier = 100;
+ // Convert Windows epoch to Unix epoch.
+ static constexpr s64 WindowsEpochToUnixEpochNS = 0x19DB1DED53E8000LL;
+
+ FILETIME filetime;
+ GetSystemTimePreciseAsFileTime(&filetime);
+ return Multiplier * ((static_cast<s64>(filetime.dwHighDateTime) << 32) +
+ static_cast<s64>(filetime.dwLowDateTime)) -
+ WindowsEpochToUnixEpochNS;
+}
#endif
SteadyClock::time_point SteadyClock::Now() noexcept {
@@ -53,4 +66,16 @@ SteadyClock::time_point SteadyClock::Now() noexcept {
#endif
}
+RealTimeClock::time_point RealTimeClock::Now() noexcept {
+#if defined(_WIN32)
+ return time_point{duration{GetSystemTimeNS()}};
+#elif defined(__APPLE__)
+ return time_point{duration{clock_gettime_nsec_np(CLOCK_REALTIME)}};
+#else
+ timespec ts;
+ clock_gettime(CLOCK_REALTIME, &ts);
+ return time_point{std::chrono::seconds{ts.tv_sec} + std::chrono::nanoseconds{ts.tv_nsec}};
+#endif
+}
+
}; // namespace Common
diff --git a/src/common/steady_clock.h b/src/common/steady_clock.h
index 9497cf865..dbd0e2513 100644
--- a/src/common/steady_clock.h
+++ b/src/common/steady_clock.h
@@ -20,4 +20,15 @@ struct SteadyClock {
[[nodiscard]] static time_point Now() noexcept;
};
+struct RealTimeClock {
+ using rep = s64;
+ using period = std::nano;
+ using duration = std::chrono::nanoseconds;
+ using time_point = std::chrono::time_point<RealTimeClock>;
+
+ static constexpr bool is_steady = false;
+
+ [[nodiscard]] static time_point Now() noexcept;
+};
+
} // namespace Common
diff --git a/src/common/x64/native_clock.cpp b/src/common/x64/native_clock.cpp
index bc1a973b0..76c66e7ee 100644
--- a/src/common/x64/native_clock.cpp
+++ b/src/common/x64/native_clock.cpp
@@ -53,11 +53,11 @@ u64 EstimateRDTSCFrequency() {
FencedRDTSC();
// Get the current time.
- const auto start_time = Common::SteadyClock::Now();
+ const auto start_time = Common::RealTimeClock::Now();
const u64 tsc_start = FencedRDTSC();
// Wait for 250 milliseconds.
std::this_thread::sleep_for(std::chrono::milliseconds{250});
- const auto end_time = Common::SteadyClock::Now();
+ const auto end_time = Common::RealTimeClock::Now();
const u64 tsc_end = FencedRDTSC();
// Calculate differences.
const u64 timer_diff = static_cast<u64>(
@@ -72,13 +72,29 @@ NativeClock::NativeClock(u64 emulated_cpu_frequency_, u64 emulated_clock_frequen
u64 rtsc_frequency_)
: WallClock(emulated_cpu_frequency_, emulated_clock_frequency_, true), rtsc_frequency{
rtsc_frequency_} {
+ // Thread to re-adjust the RDTSC frequency after 10 seconds has elapsed.
+ time_sync_thread = std::jthread{[this](std::stop_token token) {
+ // Get the current time.
+ const auto start_time = Common::RealTimeClock::Now();
+ const u64 tsc_start = FencedRDTSC();
+ // Wait for 10 seconds.
+ if (!Common::StoppableTimedWait(token, std::chrono::seconds{10})) {
+ return;
+ }
+ const auto end_time = Common::RealTimeClock::Now();
+ const u64 tsc_end = FencedRDTSC();
+ // Calculate differences.
+ const u64 timer_diff = static_cast<u64>(
+ std::chrono::duration_cast<std::chrono::nanoseconds>(end_time - start_time).count());
+ const u64 tsc_diff = tsc_end - tsc_start;
+ const u64 tsc_freq = MultiplyAndDivide64(tsc_diff, 1000000000ULL, timer_diff);
+ rtsc_frequency = tsc_freq;
+ CalculateAndSetFactors();
+ }};
+
time_point.inner.last_measure = FencedRDTSC();
time_point.inner.accumulated_ticks = 0U;
- ns_rtsc_factor = GetFixedPoint64Factor(NS_RATIO, rtsc_frequency);
- us_rtsc_factor = GetFixedPoint64Factor(US_RATIO, rtsc_frequency);
- ms_rtsc_factor = GetFixedPoint64Factor(MS_RATIO, rtsc_frequency);
- clock_rtsc_factor = GetFixedPoint64Factor(emulated_clock_frequency, rtsc_frequency);
- cpu_rtsc_factor = GetFixedPoint64Factor(emulated_cpu_frequency, rtsc_frequency);
+ CalculateAndSetFactors();
}
u64 NativeClock::GetRTSC() {
@@ -138,6 +154,14 @@ u64 NativeClock::GetCPUCycles() {
return MultiplyHigh(rtsc_value, cpu_rtsc_factor);
}
+void NativeClock::CalculateAndSetFactors() {
+ ns_rtsc_factor = GetFixedPoint64Factor(NS_RATIO, rtsc_frequency);
+ us_rtsc_factor = GetFixedPoint64Factor(US_RATIO, rtsc_frequency);
+ ms_rtsc_factor = GetFixedPoint64Factor(MS_RATIO, rtsc_frequency);
+ clock_rtsc_factor = GetFixedPoint64Factor(emulated_clock_frequency, rtsc_frequency);
+ cpu_rtsc_factor = GetFixedPoint64Factor(emulated_cpu_frequency, rtsc_frequency);
+}
+
} // namespace X64
} // namespace Common
diff --git a/src/common/x64/native_clock.h b/src/common/x64/native_clock.h
index 38ae7a462..03ca291d8 100644
--- a/src/common/x64/native_clock.h
+++ b/src/common/x64/native_clock.h
@@ -3,6 +3,7 @@
#pragma once
+#include "common/polyfill_thread.h"
#include "common/wall_clock.h"
namespace Common {
@@ -28,6 +29,8 @@ public:
private:
u64 GetRTSC();
+ void CalculateAndSetFactors();
+
union alignas(16) TimePoint {
TimePoint() : pack{} {}
u128 pack{};
@@ -47,6 +50,8 @@ private:
u64 ms_rtsc_factor{};
u64 rtsc_frequency;
+
+ std::jthread time_sync_thread;
};
} // namespace X64
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-17 15:27:54 +0200