GeorgH93/OpenVulkano
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implement fps limiter

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This commit is contained in:
ohyzha
2024-08-23 17:05:06 +03:00
parent 97bc667e0b
commit f002ea2eca
4 changed files with 40 additions and 4 deletions
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29
openVulkanoCpp/Host/GraphicsAppManager.cpp
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@@ -19,6 +19,8 @@
namespace OpenVulkano
{
using clock = std::chrono::steady_clock;
GraphicsAppManager::GraphicsAppManager(OpenVulkano::IGraphicsApp* app, RenderAPI::RenderApi renderApi)
: app(app), renderApi(renderApi)
{
@@ -37,6 +39,8 @@ namespace OpenVulkano
renderer = std::unique_ptr<IRenderer>(PlatformProducer::CreateRenderManager(renderApi));
app->SetGraphicsAppManager(this);
window->SetWindowHandler(this);
inputManager = Input::InputManager::GetInstance();
engineConfig = EngineConfiguration::GetEngineConfiguration();
}
GraphicsAppManager::GraphicsAppManager(IGraphicsApp* app, IWindow* window, RenderAPI::RenderApi renderApi)
@@ -57,6 +61,24 @@ namespace OpenVulkano
renderer = std::unique_ptr<IRenderer>(PlatformProducer::CreateRenderManager(renderApi));
app->SetGraphicsAppManager(this);
window->SetWindowHandler(this);
inputManager = OpenVulkano::Input::InputManager::GetInstance();
engineConfig = OpenVulkano::EngineConfiguration::GetEngineConfiguration();
}
void GraphicsAppManager::OnCappedFPS(const auto& frameStartTime)
{
int32_t fpsCap = engineConfig->GetFpsCap();
fpsCapRemainder += 1000 % fpsCap;
auto frameTime = std::chrono::milliseconds(1000 / fpsCap);
if (fpsCapRemainder >= fpsCap)
{
frameTime += std::chrono::milliseconds(1);
fpsCapRemainder -= fpsCap;
}
while (clock::now() < frameStartTime + frameTime)
{
std::this_thread::yield();
}
}
GraphicsAppManager::~GraphicsAppManager() noexcept
@@ -139,9 +161,14 @@ namespace OpenVulkano
}
else
{
Input::InputManager::GetInstance()->Tick();
auto start = clock::now();
inputManager->Tick();
app->Tick();
if (CURRENT_FRAME.needsRedraw) renderer->Tick();
if (engineConfig->GetFpsCap() > 0 && !engineConfig->GetVSync())
{
OnCappedFPS(start);
}
frameTimer.Tick();
UpdateFps();
CURRENT_FRAME.frameId = frameCount;