From 42f5fd0ab32b117901d0cae228103811719606ff Mon Sep 17 00:00:00 2001
From: Lioncash <mathew1800@gmail.com>
Date: Tue, 4 Jun 2019 19:52:42 -0400
Subject: [PATCH] core/core_timing_util: Use std::chrono types for specifying
time units
Makes the interface more type-safe and consistent in terms of return
values.
---
src/audio_core/stream.cpp | 4 ++-
src/core/core_timing_util.cpp | 36 ++++++++++---------
src/core/core_timing_util.h | 21 ++++++-----
src/core/hle/kernel/thread.cpp | 4 +--
.../service/nvdrv/devices/nvhost_ctrl_gpu.cpp | 3 +-
src/core/hle/service/time/time.cpp | 9 ++---
src/video_core/gpu_thread.cpp | 2 +-
7 files changed, 43 insertions(+), 36 deletions(-)
diff --git a/src/audio_core/stream.cpp b/src/audio_core/stream.cpp
index 22a3f8c84d..11481a776f 100644
--- a/src/audio_core/stream.cpp
+++ b/src/audio_core/stream.cpp
@@ -57,7 +57,9 @@ Stream::State Stream::GetState() const {
s64 Stream::GetBufferReleaseCycles(const Buffer& buffer) const {
const std::size_t num_samples{buffer.GetSamples().size() / GetNumChannels()};
- return Core::Timing::usToCycles((static_cast<u64>(num_samples) * 1000000) / sample_rate);
+ const auto us =
+ std::chrono::microseconds((static_cast<u64>(num_samples) * 1000000) / sample_rate);
+ return Core::Timing::usToCycles(us);
}
static void VolumeAdjustSamples(std::vector<s16>& samples) {
diff --git a/src/core/core_timing_util.cpp b/src/core/core_timing_util.cpp
index 4d73a0d898..a10472a95f 100644
--- a/src/core/core_timing_util.cpp
+++ b/src/core/core_timing_util.cpp
@@ -13,36 +13,40 @@ namespace Core::Timing {
constexpr u64 MAX_VALUE_TO_MULTIPLY = std::numeric_limits<s64>::max() / BASE_CLOCK_RATE;
-s64 usToCycles(s64 us) {
- if (static_cast<u64>(us / 1000000) > MAX_VALUE_TO_MULTIPLY) {
+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>(us) > MAX_VALUE_TO_MULTIPLY) {
+ if (static_cast<u64>(ms.count()) > MAX_VALUE_TO_MULTIPLY) {
LOG_DEBUG(Core_Timing, "Time very big, do rounding");
- return BASE_CLOCK_RATE * (us / 1000000);
+ return BASE_CLOCK_RATE * (ms.count() / 1000);
}
- return (BASE_CLOCK_RATE * us) / 1000000;
+ return (BASE_CLOCK_RATE * ms.count()) / 1000;
}
-s64 usToCycles(u64 us) {
- return usToCycles(static_cast<s64>(us));
-}
-
-s64 nsToCycles(s64 ns) {
- if (static_cast<u64>(ns / 1000000000) > MAX_VALUE_TO_MULTIPLY) {
+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>(ns) > MAX_VALUE_TO_MULTIPLY) {
+ if (static_cast<u64>(us.count()) > MAX_VALUE_TO_MULTIPLY) {
LOG_DEBUG(Core_Timing, "Time very big, do rounding");
- return BASE_CLOCK_RATE * (ns / 1000000000);
+ return BASE_CLOCK_RATE * (us.count() / 1000000);
}
- return (BASE_CLOCK_RATE * ns) / 1000000000;
+ return (BASE_CLOCK_RATE * us.count()) / 1000000;
}
-s64 nsToCycles(u64 ns) {
- return nsToCycles(static_cast<s64>(ns));
+s64 nsToCycles(std::chrono::nanoseconds ns) {
+ if (static_cast<u64>(ns.count() / 1000000000) > MAX_VALUE_TO_MULTIPLY) {
+ LOG_ERROR(Core_Timing, "Integer overflow, use max value");
+ return std::numeric_limits<s64>::max();
+ }
+ if (static_cast<u64>(ns.count()) > MAX_VALUE_TO_MULTIPLY) {
+ LOG_DEBUG(Core_Timing, "Time very big, do rounding");
+ return BASE_CLOCK_RATE * (ns.count() / 1000000000);
+ }
+ return (BASE_CLOCK_RATE * ns.count()) / 1000000000;
}
u64 CpuCyclesToClockCycles(u64 ticks) {
diff --git a/src/core/core_timing_util.h b/src/core/core_timing_util.h
index c8749ff12a..1dcd38dd16 100644
--- a/src/core/core_timing_util.h
+++ b/src/core/core_timing_util.h
@@ -4,6 +4,7 @@
#pragma once
+#include <chrono>
#include "common/common_types.h"
namespace Core::Timing {
@@ -13,22 +14,20 @@ namespace Core::Timing {
constexpr u64 BASE_CLOCK_RATE = 1019215872; // Switch clock speed is 1020MHz un/docked
constexpr u64 CNTFREQ = 19200000; // Value from fusee.
-s64 usToCycles(s64 us);
-s64 usToCycles(u64 us);
+s64 msToCycles(std::chrono::milliseconds ms);
+s64 usToCycles(std::chrono::microseconds us);
+s64 nsToCycles(std::chrono::nanoseconds ns);
-s64 nsToCycles(s64 ns);
-s64 nsToCycles(u64 ns);
-
-inline u64 cyclesToNs(s64 cycles) {
- return cycles * 1000000000 / BASE_CLOCK_RATE;
+inline std::chrono::milliseconds cyclesToMs(s64 cycles) {
+ return std::chrono::milliseconds(cycles * 1000 / BASE_CLOCK_RATE);
}
-inline s64 cyclesToUs(s64 cycles) {
- return cycles * 1000000 / BASE_CLOCK_RATE;
+inline std::chrono::nanoseconds cyclesToNs(s64 cycles) {
+ return std::chrono::nanoseconds(cycles * 1000000000 / BASE_CLOCK_RATE);
}
-inline u64 cyclesToMs(s64 cycles) {
- return cycles * 1000 / BASE_CLOCK_RATE;
+inline std::chrono::microseconds cyclesToUs(s64 cycles) {
+ return std::chrono::microseconds(cycles * 1000000 / BASE_CLOCK_RATE);
}
u64 CpuCyclesToClockCycles(u64 ticks);
diff --git a/src/core/hle/kernel/thread.cpp b/src/core/hle/kernel/thread.cpp
index 2abf9efca4..c73a409773 100644
--- a/src/core/hle/kernel/thread.cpp
+++ b/src/core/hle/kernel/thread.cpp
@@ -75,9 +75,9 @@ void Thread::WakeAfterDelay(s64 nanoseconds) {
// This function might be called from any thread so we have to be cautious and use the
// thread-safe version of ScheduleEvent.
+ const s64 cycles = Core::Timing::nsToCycles(std::chrono::nanoseconds{nanoseconds});
Core::System::GetInstance().CoreTiming().ScheduleEventThreadsafe(
- Core::Timing::nsToCycles(nanoseconds), kernel.ThreadWakeupCallbackEventType(),
- callback_handle);
+ cycles, kernel.ThreadWakeupCallbackEventType(), callback_handle);
}
void Thread::CancelWakeupTimer() {
diff --git a/src/core/hle/service/nvdrv/devices/nvhost_ctrl_gpu.cpp b/src/core/hle/service/nvdrv/devices/nvhost_ctrl_gpu.cpp
index 45812d2389..f425305d67 100644
--- a/src/core/hle/service/nvdrv/devices/nvhost_ctrl_gpu.cpp
+++ b/src/core/hle/service/nvdrv/devices/nvhost_ctrl_gpu.cpp
@@ -185,7 +185,8 @@ u32 nvhost_ctrl_gpu::GetGpuTime(const std::vector<u8>& input, std::vector<u8>& o
IoctlGetGpuTime params{};
std::memcpy(¶ms, input.data(), input.size());
- params.gpu_time = Core::Timing::cyclesToNs(Core::System::GetInstance().CoreTiming().GetTicks());
+ const auto ns = Core::Timing::cyclesToNs(Core::System::GetInstance().CoreTiming().GetTicks());
+ params.gpu_time = static_cast<u64_le>(ns.count());
std::memcpy(output.data(), ¶ms, output.size());
return 0;
}
diff --git a/src/core/hle/service/time/time.cpp b/src/core/hle/service/time/time.cpp
index aa115935d8..a6bb3beb03 100644
--- a/src/core/hle/service/time/time.cpp
+++ b/src/core/hle/service/time/time.cpp
@@ -108,8 +108,9 @@ private:
LOG_DEBUG(Service_Time, "called");
const auto& core_timing = Core::System::GetInstance().CoreTiming();
- const SteadyClockTimePoint steady_clock_time_point{
- Core::Timing::cyclesToMs(core_timing.GetTicks()) / 1000};
+ const auto ms = Core::Timing::cyclesToMs(core_timing.GetTicks());
+ const SteadyClockTimePoint steady_clock_time_point{static_cast<u64_le>(ms.count() / 1000),
+ {}};
IPC::ResponseBuilder rb{ctx, (sizeof(SteadyClockTimePoint) / 4) + 2};
rb.Push(RESULT_SUCCESS);
rb.PushRaw(steady_clock_time_point);
@@ -284,8 +285,8 @@ void Module::Interface::GetClockSnapshot(Kernel::HLERequestContext& ctx) {
}
const auto& core_timing = Core::System::GetInstance().CoreTiming();
- const SteadyClockTimePoint steady_clock_time_point{
- Core::Timing::cyclesToMs(core_timing.GetTicks()) / 1000, {}};
+ const auto ms = Core::Timing::cyclesToMs(core_timing.GetTicks());
+ const SteadyClockTimePoint steady_clock_time_point{static_cast<u64_le>(ms.count() / 1000), {}};
CalendarTime calendar_time{};
calendar_time.year = tm->tm_year + 1900;
diff --git a/src/video_core/gpu_thread.cpp b/src/video_core/gpu_thread.cpp
index 1e2ff46b0e..3f0939ec9e 100644
--- a/src/video_core/gpu_thread.cpp
+++ b/src/video_core/gpu_thread.cpp
@@ -75,7 +75,7 @@ void ThreadManager::StartThread(VideoCore::RendererBase& renderer, Tegra::DmaPus
void ThreadManager::SubmitList(Tegra::CommandList&& entries) {
const u64 fence{PushCommand(SubmitListCommand(std::move(entries)))};
- const s64 synchronization_ticks{Core::Timing::usToCycles(9000)};
+ const s64 synchronization_ticks{Core::Timing::usToCycles(std::chrono::microseconds{9000})};
system.CoreTiming().ScheduleEvent(synchronization_ticks, synchronization_event, fence);
}
--
GitLab