[core, gpu, threads] Multithreading refactor (#4254)

This insufferable work tries to cover some holes on previous threading implementation from yuzu's team, starting with Windows and Linux reordering of priorities (NICE), reworks previous Android's threading and cpu affinity with adpf, adjust emulated clocks/gpu for better "accuracy" with their work, bumps android minSDK for all flavors, legacy will now work with AP 29 to cover A10 - A12, standard will reach A13 as base and finally the optimized build will come with API 35, mostly targeted on devices with A15 support and newer, NDK and AGP wasn't upgraded yet. The performance cost efficiency have been improved based on device power configuration; preventing overheating if certain devices tended to fall into NICE0 (not allocated threads priority, all task ran with higher priority, 11 tasks running within the limited 2 - 7 threads available on the most common configuration 1x3x4 or 1x4x3).

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4254

src/core/hle/service/vi/conductor.cpp

@@ -4,7 +4,11 @@
 // SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#include <algorithm>
+
+#include "common/adpf.h"
 #include "common/settings.h"
+#include "common/thread.h"
 #include "core/core.h"
 #include "core/core_timing.h"
 #include "core/hle/service/vi/conductor.h"
@@ -14,6 +18,8 @@
 
 constexpr auto FrameNs = std::chrono::nanoseconds{1000000000 / 60};
 
+constexpr s64 UNLOCKED_TARGET_DIVISOR = 4;
+
 namespace Service::VI {
 
 Conductor::Conductor(Core::System& system, Container& container, DisplayList& displays)
@@ -68,6 +74,9 @@ void Conductor::UnlinkVsyncEvent(u64 display_id, Event* event) {
 }
 
 void Conductor::ProcessVsync() {
+    Common::PollThreadPolicies();
+    Common::ADPF::SetTargetWorkDuration(std::chrono::nanoseconds{this->GetFramePeriodNs()});
+
     for (auto& [display_id, manager] : m_vsync_managers) {
         m_container.ComposeOnDisplay(&m_swap_interval, &m_compose_speed_scale, display_id);
         manager.SignalVsync(m_system.Kernel());
@@ -76,6 +85,8 @@ void Conductor::ProcessVsync() {
 
 void Conductor::VsyncThread(std::stop_token token) {
     Common::SetCurrentThreadName("VSyncThread");
+    Common::SetCurrentThreadPriority(Common::ThreadPriority::VeryHigh);
+    Common::SetCurrentThreadToPerformanceCores();
 
     while (!token.stop_requested()) {
         m_signal.Wait();
@@ -114,4 +125,25 @@ s64 Conductor::GetNextTicks() const {
     return static_cast<s64>(speed_scale * (1000000000.f / effective_fps));
 }
 
+s64 Conductor::GetFramePeriodNs() const {
+    const auto& settings = Settings::values;
+    f32 speed_scale = 1.f;
+    bool unlocked = false;
+    if (settings.use_multi_core.GetValue()) {
+        if (settings.use_speed_limit.GetValue()) {
+            speed_scale = 100.f / Settings::SpeedLimit();
+        } else {
+            unlocked = true;
+        }
+    }
+    speed_scale /= m_compose_speed_scale;
+
+    const f32 effective_fps = 60.f / static_cast<f32>(m_swap_interval);
+    s64 period = static_cast<s64>(speed_scale * (1000000000.f / effective_fps));
+    if (unlocked) {
+        period /= UNLOCKED_TARGET_DIVISOR;
+    }
+    return std::clamp<s64>(period, 1'000'000, 100'000'000);
+}
+
 } // namespace Service::VI

src/core/hle/service/vi/conductor.h

@@ -44,6 +44,7 @@ private:
     void ProcessVsync();
     void VsyncThread(std::stop_token token);
     s64 GetNextTicks() const;
+    s64 GetFramePeriodNs() const;
 
 private:
     Core::System& m_system;