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Optimize static wait presentation

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gamer147
2026-07-11 13:56:30 -04:00
parent 54d11f513d
commit 3b5dbc6c2c
5 changed files with 96 additions and 6 deletions
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20
godot/GodotAdvHost.cs
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@@ -105,6 +105,9 @@ public sealed class GodotAdvHost : IHost
{
Pages++;
_main.CallDeferred("PageBreak");
// Publish retained mutations accumulated before the wait once. A static input wait is not itself a
// reason to rebuild the 800x600 background every frame; ambient channels are queried separately.
System.Threading.Interlocked.Exchange(ref _presentRequested, 1);
IsWaiting = true;
_timeline?.State("input-wait", new() { ["page"] = Pages });
_gate.Wait();
@@ -167,6 +170,9 @@ public sealed class GodotAdvHost : IHost
}
_frameSignal.WaitOne(50);
}
// The active query becomes false at the exact transition/movie endpoint. Publish that terminal sample
// once so the last visible frame cannot remain fractionally incomplete.
System.Threading.Interlocked.Exchange(ref _presentRequested, 1);
IsTransitionWaiting = false;
System.Threading.Interlocked.Exchange(ref _transitionStartedAtMs, -1);
_foregroundGfx = null;
@@ -185,11 +191,12 @@ public sealed class GodotAdvHost : IHost
System.Threading.Interlocked.Exchange(ref _presentRequested, 1);
}
// Native retained-object writes are not front-buffer writes. The renderer publishes them only at an
// explicit present or while the interpreter is parked in a presentation-capable service boundary.
public bool ShouldRecomposite()
=> IsWaiting || IsTransitionWaiting || IsSleeping || IsTextRevealing ||
System.Threading.Interlocked.Exchange(ref _presentRequested, 0) != 0;
// Native retained-object writes are not front-buffer writes. Publish explicit/service-boundary dirtiness
// once, then continue only while the sampled retained scene can actually change. Text reveal is a separate
// Godot Label; waiting/sleeping alone do not alter background pixels.
public bool ShouldRecomposite(GfxState gfx)
=> System.Threading.Interlocked.Exchange(ref _presentRequested, 0) != 0 ||
gfx.HasActiveVisualPresentation(_clock.NowMs);
public void Stop()
{
@@ -218,6 +225,9 @@ public sealed class GodotAdvHost : IHost
long ms = (long)System.Math.Clamp(duration * SleepScale, 0, 60_000); // cap so a pathological script can't hang the window
long deadline = _clock.NowMs + ms;
_timeline?.State("sleep", new() { ["duration_ms"] = ms, ["deadline_ms"] = deadline });
// A sleep is a service boundary: make preceding retained writes visible once even when no animation
// channel is active during the hold.
System.Threading.Interlocked.Exchange(ref _presentRequested, 1);
IsSleeping = true;
while (_clock.NowMs < deadline)
{