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Add frame delta smoothing option

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Frame deltas are currently measured by querying the OS timer each frame. This is subject to random error. Frame delta smoothing instead filters the delta read from the OS by replacing it with the refresh rate delta wherever possible.

This PR also contains code to estimate the refresh rate based on the input deltas, without reading the refresh rate from the host OS.
This commit is contained in:
lawnjelly
2021-04-30 19:48:08 +01:00
parent b0b2b7df31
commit 6914d7c6e0
9 changed files with 356 additions and 0 deletions
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12
core/bind/core_bind.cpp
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@@ -596,6 +596,14 @@ bool _OS::is_vsync_via_compositor_enabled() const {
return OS::get_singleton()->is_vsync_via_compositor_enabled();
}
void _OS::set_delta_smoothing(bool p_enabled) {
OS::get_singleton()->set_delta_smoothing(p_enabled);
}
bool _OS::is_delta_smoothing_enabled() const {
return OS::get_singleton()->is_delta_smoothing_enabled();
}
_OS::PowerState _OS::get_power_state() {
return _OS::PowerState(OS::get_singleton()->get_power_state());
}
@@ -1369,6 +1377,9 @@ void _OS::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_vsync_via_compositor", "enable"), &_OS::set_vsync_via_compositor);
ClassDB::bind_method(D_METHOD("is_vsync_via_compositor_enabled"), &_OS::is_vsync_via_compositor_enabled);
ClassDB::bind_method(D_METHOD("set_delta_smoothing", "delta_smoothing_enabled"), &_OS::set_delta_smoothing);
ClassDB::bind_method(D_METHOD("is_delta_smoothing_enabled"), &_OS::is_delta_smoothing_enabled);
ClassDB::bind_method(D_METHOD("has_feature", "tag_name"), &_OS::has_feature);
ClassDB::bind_method(D_METHOD("get_power_state"), &_OS::get_power_state);
@@ -1391,6 +1402,7 @@ void _OS::_bind_methods() {
ADD_PROPERTY(PropertyInfo(Variant::INT, "exit_code"), "set_exit_code", "get_exit_code");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "vsync_enabled"), "set_use_vsync", "is_vsync_enabled");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "vsync_via_compositor"), "set_vsync_via_compositor", "is_vsync_via_compositor_enabled");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "delta_smoothing"), "set_delta_smoothing", "is_delta_smoothing_enabled");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "low_processor_usage_mode"), "set_low_processor_usage_mode", "is_in_low_processor_usage_mode");
ADD_PROPERTY(PropertyInfo(Variant::INT, "low_processor_usage_mode_sleep_usec"), "set_low_processor_usage_mode_sleep_usec", "get_low_processor_usage_mode_sleep_usec");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "keep_screen_on"), "set_keep_screen_on", "is_keep_screen_on");

3
core/bind/core_bind.h
View File

@@ -374,6 +374,9 @@ public:
void set_vsync_via_compositor(bool p_enable);
bool is_vsync_via_compositor_enabled() const;
void set_delta_smoothing(bool p_enabled);
bool is_delta_smoothing_enabled() const;
PowerState get_power_state();
int get_power_seconds_left();
int get_power_percent_left();