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Add project setting for agile input event flushing

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If enabled, key/touch/joystick events will be flushed just before every idle and physics frame.

Enabling this can greatly improve the responsiveness to input, specially in devices that need to run multiple physics frames per each idle frame, because of not being powerful enough to run at the target frame rate.

This will only work for platforms using input buffering (regardless event accumulation). Currenly, only Android does so, but could be implemented for iOS in an upcoming PR.
This commit is contained in:
Pedro J. Estébanez
2020-09-21 01:35:20 +02:00
parent 7be9c26e20
commit 31a0ca2cac
3 changed files with 23 additions and 4 deletions
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20
main/main.cpp
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@@ -1413,6 +1413,8 @@ Error Main::setup2(Thread::ID p_main_tid_override) {
InputDefault *id = Object::cast_to<InputDefault>(Input::get_singleton());
if (id) {
agile_input_event_flushing = GLOBAL_DEF("input_devices/buffering/agile_event_flushing", false);
if (bool(GLOBAL_DEF("input_devices/pointing/emulate_touch_from_mouse", false)) && !(editor || project_manager)) {
if (!OS::get_singleton()->has_touchscreen_ui_hint()) {
//only if no touchscreen ui hint, set emulation
@@ -2045,6 +2047,8 @@ uint32_t Main::frames = 0;
uint32_t Main::frame = 0;
bool Main::force_redraw_requested = false;
int Main::iterating = 0;
bool Main::agile_input_event_flushing = false;
bool Main::is_iterating() {
return iterating > 0;
}
@@ -2114,9 +2118,13 @@ bool Main::iteration() {
bool exit = false;
Engine::get_singleton()->_in_physics = true;
for (int iters = 0; iters < advance.physics_steps; ++iters) {
if (InputDefault::get_singleton()->is_using_input_buffering() && agile_input_event_flushing) {
InputDefault::get_singleton()->flush_buffered_events();
}
Engine::get_singleton()->_in_physics = true;
uint64_t physics_begin = OS::get_singleton()->get_ticks_usec();
PhysicsServer::get_singleton()->flush_queries();
@@ -2141,9 +2149,13 @@ bool Main::iteration() {
physics_process_ticks = MAX(physics_process_ticks, OS::get_singleton()->get_ticks_usec() - physics_begin); // keep the largest one for reference
physics_process_max = MAX(OS::get_singleton()->get_ticks_usec() - physics_begin, physics_process_max);
Engine::get_singleton()->_physics_frames++;
Engine::get_singleton()->_in_physics = false;
}
Engine::get_singleton()->_in_physics = false;
if (InputDefault::get_singleton()->is_using_input_buffering() && agile_input_event_flushing) {
InputDefault::get_singleton()->flush_buffered_events();
}
uint64_t idle_begin = OS::get_singleton()->get_ticks_usec();
@@ -2218,7 +2230,7 @@ bool Main::iteration() {
iterating--;
// Needed for OSs using input buffering regardless accumulation (like Android)
if (InputDefault::get_singleton()->is_using_input_buffering()) {
if (InputDefault::get_singleton()->is_using_input_buffering() && !agile_input_event_flushing) {
InputDefault::get_singleton()->flush_buffered_events();
}