[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/core_timing.cpp

@@ -23,6 +23,21 @@ namespace Core::Timing {
 
 constexpr s64 MAX_SLICE_LENGTH = 10000;
 
+constexpr u32 CPU_CLOCK_BASE_MHZ = 1020;
+constexpr u32 CPU_CLOCK_BOOST_MHZ = 1734;
+constexpr u32 CPU_CLOCK_OVERCLOCK_MHZ = 2040;
+
+constexpr u32 CpuClockTargetMhz(Settings::CpuClock clock) {
+    switch (clock) {
+    case Settings::CpuClock::Boost:
+        return CPU_CLOCK_BOOST_MHZ;
+    case Settings::CpuClock::Overclock:
+        return CPU_CLOCK_OVERCLOCK_MHZ;
+    default:
+        return CPU_CLOCK_BASE_MHZ;
+    }
+}
+
 std::shared_ptr<EventType> CreateEvent(std::string name, TimedCallback&& callback) {
     return std::make_shared<EventType>(std::move(callback), std::move(name));
 }
@@ -58,7 +73,8 @@ void CoreTiming::Initialize(std::function<void()>&& on_thread_init_) {
     if (is_multicore) {
         timer_thread = std::jthread([this](std::stop_token stop_token) {
             Common::SetCurrentThreadName("HostTiming");
-            Common::SetCurrentThreadPriority(Common::ThreadPriority::High);
+            Common::SetCurrentThreadPriority(Common::ThreadPriority::VeryHigh);
+            Common::SetCurrentThreadToPerformanceCores();
             on_thread_init();
             has_started = true;
 
@@ -209,8 +225,9 @@ void CoreTiming::ResetTicks() {
 
 u64 CoreTiming::GetClockTicks() const {
     u64 fres = is_multicore ? Common::g_wall_clock.GetCNTPCT() : Common::WallClock::CPUTickToCNTPCT(cpu_ticks);
-    if (auto const overclock = Settings::values.fast_cpu_time.GetValue(); overclock != Settings::CpuClock::Off) {
-        fres = u64(f64(fres) * (1.7 + 0.3 * u32(overclock)));
+    if (const u32 target = CpuClockTargetMhz(Settings::values.cpu_clock.GetValue());
+        target != CPU_CLOCK_BASE_MHZ) {
+        fres = fres * target / CPU_CLOCK_BASE_MHZ;
     }
     if (::Settings::values.sync_core_speed.GetValue()) {
         auto const ticks = f64(fres);