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rejig frame timings

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This commit is contained in:
Nick Fisher
2024-03-09 11:22:12 +08:00
parent ed8bcd5794
commit f02cd5d611
1 changed files with 19 additions and 42 deletions
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61
ios/src/FlutterFilamentFFIApi.cpp
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@@ -40,28 +40,7 @@ public:
_t = new std::thread([this]() {
auto last = std::chrono::high_resolution_clock::now();
while (!_stop) {
auto now = std::chrono::high_resolution_clock::now();
float elapsed = float(std::chrono::duration_cast<std::chrono::milliseconds>(now - last).count());
while(elapsed < _frameIntervalInMilliseconds - 5) {
std::function<void()> task;
std::unique_lock<std::mutex> lock(_access);
if (_tasks.empty()) {
_cond.wait_for(lock, std::chrono::duration<float, std::milli>(1));
now = std::chrono::high_resolution_clock::now();
elapsed = float(std::chrono::duration_cast<std::chrono::milliseconds>(now - last).count());
continue;
}
task = std::move(_tasks.front());
_tasks.pop_front();
task();
now = std::chrono::high_resolution_clock::now();
elapsed = float(std::chrono::duration_cast<std::chrono::milliseconds>(now - last).count());
}
last = std::chrono::high_resolution_clock::now();
if (_rendering) {
// auto frameStart = std::chrono::high_resolution_clock::now();
@@ -69,26 +48,30 @@ public:
// auto frameEnd = std::chrono::high_resolution_clock::now();
}
elapsed = float(std::chrono::duration_cast<std::chrono::milliseconds>(now - last).count());
auto now = std::chrono::high_resolution_clock::now();
while(elapsed < _frameIntervalInMilliseconds) {
std::function<void()> task;
std::unique_lock<std::mutex> lock(_access);
if (_tasks.empty()) {
_cond.wait_for(lock, std::chrono::duration<float, std::milli>(1));
now = std::chrono::high_resolution_clock::now();
elapsed = float(std::chrono::duration_cast<std::chrono::milliseconds>(now - last).count());
continue;
}
float elapsed = float(std::chrono::duration_cast<std::chrono::milliseconds>(now - last).count());
std::function<void()> task;
std::unique_lock<std::mutex> lock(_access);
if(_tasks.empty()) {
_cond.wait_for(lock, std::chrono::duration<float, std::milli>(1));
continue;
}
while(!_tasks.empty()) {
task = std::move(_tasks.front());
_tasks.pop_front();
task();
now = std::chrono::high_resolution_clock::now();
elapsed = float(std::chrono::duration_cast<std::chrono::milliseconds>(now - last).count());
}
last = now;
now = std::chrono::high_resolution_clock::now();
elapsed = float(std::chrono::duration_cast<std::chrono::milliseconds>(now - last).count());
if(elapsed < _frameIntervalInMilliseconds) {
auto sleepFor = std::chrono::microseconds(int(_frameIntervalInMilliseconds - elapsed) * 1000);
std::this_thread::sleep_for(sleepFor);
}
}
});
}
@@ -503,12 +486,6 @@ FLUTTER_PLUGIN_EXPORT void set_post_processing_ffi(void *const viewer,
auto fut = _rl->add_task(lambda);
}
FLUTTER_PLUGIN_EXPORT void pick_ffi(void *const viewer, int x, int y,
EntityId *entityId) {
std::packaged_task<void()> lambda([=] { pick(viewer, x, y, entityId); });
auto fut = _rl->add_task(lambda);
}
FLUTTER_PLUGIN_EXPORT void
get_name_for_entity_ffi(void *const sceneManager, const EntityId entityId, void (*callback)(const char*)) {
std::packaged_task<const char *()> lambda(