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Share FpsControl code between game and menu

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This commit is contained in:
sfan5 2024-02-20 16:05:27 +01:00
parent 0c3a4cc7b9
commit 13a0e5fb4a
5 changed files with 70 additions and 123 deletions
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43
src/client/renderingengine.cpp
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@ -44,6 +44,46 @@ RenderingEngine *RenderingEngine::s_singleton = nullptr;
const video::SColor RenderingEngine::MENU_SKY_COLOR = video::SColor(255, 140, 186, 250);
const float RenderingEngine::BASE_BLOOM_STRENGTH = 1.0f;
/* Helper stuff */
void FpsControl::reset()
{
last_time = porting::getTimeUs();
}
void FpsControl::limit(IrrlichtDevice *device, f32 *dtime, bool assume_paused)
{
const float fps_limit = (device->isWindowFocused() && !assume_paused)
? g_settings->getFloat("fps_max")
: g_settings->getFloat("fps_max_unfocused");
const u64 frametime_min = 1000000.0f / std::max(fps_limit, 1.0f);
u64 time = porting::getTimeUs();
if (time > last_time) // Make sure time hasn't overflowed
busy_time = time - last_time;
else
busy_time = 0;
if (busy_time < frametime_min) {
sleep_time = frametime_min - busy_time;
if (sleep_time > 0)
sleep_us(sleep_time);
} else {
sleep_time = 0;
}
// Read the timer again to accurately determine how long we actually slept,
// rather than calculating it by adding sleep_time to time.
time = porting::getTimeUs();
if (time > last_time) // Make sure last_time hasn't overflowed
*dtime = (time - last_time) / 1000000.0f;
else
*dtime = 0;
last_time = time;
}
static gui::GUISkin *createSkin(gui::IGUIEnvironment *environment,
gui::EGUI_SKIN_TYPE type, video::IVideoDriver *driver)
@ -66,7 +106,6 @@ static gui::GUISkin *createSkin(gui::IGUIEnvironment *environment,
return skin;
}
static std::optional<video::E_DRIVER_TYPE> chooseVideoDriver()
{
auto &&configured_name = g_settings->get("video_driver");
@ -106,6 +145,8 @@ static irr::IrrlichtDevice *createDevice(SIrrlichtCreationParameters params, std
throw std::runtime_error("Could not initialize the device with any supported video driver");
}
/* RenderingEngine class */
RenderingEngine::RenderingEngine(IEventReceiver *receiver)
{
sanity_check(!s_singleton);