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Introduce FPS counter on the bottom right

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SimoneN64
2024-10-21 20:46:43 +02:00
parent cf5b1def4f
commit 8fdf94fd97
5 changed files with 33 additions and 5 deletions
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27
src/frontend/EmuThread.cpp
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@@ -1,14 +1,22 @@
#include <Core.hpp>
#include <EmuThread.hpp>
EmuThread::EmuThread(const std::shared_ptr<n64::Core> &core, RenderWidget &renderWidget,
SettingsWindow &settings) noexcept : renderWidget(renderWidget), core(core), settings(settings) {}
EmuThread::EmuThread(const std::shared_ptr<n64::Core> &core, QLabel &fps, RenderWidget &renderWidget,
SettingsWindow &settings) noexcept :
renderWidget(renderWidget), core(core), settings(settings), fps(fps) {}
void EmuThread::run() noexcept {
core->parallel.Init(renderWidget.qtVkInstanceFactory, renderWidget.wsiPlatform, renderWidget.windowInfo,
core->cpu->GetMem().GetRDRAMPtr());
auto lastSample = std::chrono::high_resolution_clock::now();
auto avgFps = 16.667;
auto sampledFps = 0;
fps.setText(fmt::format("{:.2f} FPS", 1000.0 / avgFps).c_str());
while (!isInterruptionRequested()) {
const auto startFrameTime = std::chrono::high_resolution_clock::now();
if (!core->pause) {
core->Run(settings.getVolumeL(), settings.getVolumeR());
}
@@ -16,6 +24,21 @@ void EmuThread::run() noexcept {
if (core->render) {
core->parallel.UpdateScreen(core->cpu->GetMem().mmio.vi);
}
const auto endFrameTime = std::chrono::high_resolution_clock::now();
using namespace std::chrono_literals;
const auto frameTimeMs = std::chrono::duration<double>(endFrameTime - startFrameTime) / 1ms;
avgFps += frameTimeMs;
sampledFps++;
if (const auto elapsedSinceLastSample = std::chrono::duration<double>(endFrameTime - lastSample) / 1s;
elapsedSinceLastSample >= 1.0) {
lastSample = endFrameTime;
avgFps /= sampledFps;
sampledFps = 0;
fps.setText(fmt::format("{:.2f} FPS", 1000.0 / avgFps).c_str());
}
}
SetRender(false);