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Services/NvFlinger: Do vSync in a sepparate thread on Multicore.

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This commit is contained in:
Fernando Sahmkow
2020-05-29 15:00:17 -04:00
parent 39ddce1ab5
commit 272a87127a
4 changed files with 69 additions and 5 deletions
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49
src/core/hle/service/nvflinger/nvflinger.cpp
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@ -9,6 +9,7 @@
#include "common/logging/log.h"
#include "common/microprofile.h"
#include "common/scope_exit.h"
#include "common/thread.h"
#include "core/core.h"
#include "core/core_timing.h"
#include "core/core_timing_util.h"
@ -30,6 +31,33 @@ namespace Service::NVFlinger {
constexpr s64 frame_ticks = static_cast<s64>(1000000000 / 60);
constexpr s64 frame_ticks_30fps = static_cast<s64>(1000000000 / 30);
void NVFlinger::VSyncThread(NVFlinger& nv_flinger) {
nv_flinger.SplitVSync();
}
void NVFlinger::SplitVSync() {
system.RegisterHostThread();
std::string name = "yuzu:VSyncThread";
MicroProfileOnThreadCreate(name.c_str());
Common::SetCurrentThreadName(name.c_str());
Common::SetCurrentThreadPriority(Common::ThreadPriority::High);
s64 delay = 0;
while (is_running) {
guard->lock();
const s64 time_start = system.CoreTiming().GetGlobalTimeNs().count();
Compose();
const auto ticks = GetNextTicks();
const s64 time_end = system.CoreTiming().GetGlobalTimeNs().count();
const s64 time_passed = time_end - time_start;
const s64 next_time = std::max<s64>(0, ticks - time_passed - delay);
guard->unlock();
if (next_time > 0) {
wait_event->WaitFor(std::chrono::nanoseconds{next_time});
}
delay = (system.CoreTiming().GetGlobalTimeNs().count() - time_end) - next_time;
}
}
NVFlinger::NVFlinger(Core::System& system) : system(system) {
displays.emplace_back(0, "Default", system);
displays.emplace_back(1, "External", system);
@ -47,12 +75,25 @@ NVFlinger::NVFlinger(Core::System& system) : system(system) {
this->system.CoreTiming().ScheduleEvent(std::max<s64>(0LL, ticks - ns_late),
composition_event);
});
system.CoreTiming().ScheduleEvent(frame_ticks, composition_event);
if (system.IsMulticore()) {
is_running = true;
wait_event = std::make_unique<Common::Event>();
vsync_thread = std::make_unique<std::thread>(VSyncThread, std::ref(*this));
} else {
system.CoreTiming().ScheduleEvent(frame_ticks, composition_event);
}
}
NVFlinger::~NVFlinger() {
system.CoreTiming().UnscheduleEvent(composition_event, 0);
if (system.IsMulticore()) {
is_running = false;
wait_event->Set();
vsync_thread->join();
vsync_thread.reset();
wait_event.reset();
} else {
system.CoreTiming().UnscheduleEvent(composition_event, 0);
}
}
void NVFlinger::SetNVDrvInstance(std::shared_ptr<Nvidia::Module> instance) {
@ -200,10 +241,12 @@ void NVFlinger::Compose() {
auto& gpu = system.GPU();
const auto& multi_fence = buffer->get().multi_fence;
guard->unlock();
for (u32 fence_id = 0; fence_id < multi_fence.num_fences; fence_id++) {
const auto& fence = multi_fence.fences[fence_id];
gpu.WaitFence(fence.id, fence.value);
}
guard->lock();
MicroProfileFlip();