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Implement movie surface stop-time queries

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gamer147
2026-07-21 14:43:24 -04:00
parent b0971f2047
commit fdcfbd9fa6
15 changed files with 330 additions and 60 deletions
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37
engine/Age.Engine/Model/GfxState.cs
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@@ -299,6 +299,7 @@ public sealed class GfxState
_objects.Clear();
_fieldTable.Clear();
_surfaces.Clear();
_movieStopTimesMs.Clear();
_surfaceTransitions.Clear();
CurrentObject = 0;
CurrentRenderTargetSlot = -1;
@@ -314,8 +315,32 @@ public sealed class GfxState
// ---- surfaces (image buffers per slot): ctx+0x52bd4[slot], from create/set-texture ----
private readonly Dictionary<int, (long ResId, long ColorKey)> _surfaces = new();
// A separate entry models the native CMovieToTexture object attached to a surface. A null value means
// the movie object exists but its host decoder supplied no usable IMediaPosition stop time.
private readonly Dictionary<int, long?> _movieStopTimesMs = new();
private readonly Dictionary<int, SurfaceTransition> _surfaceTransitions = new();
public void SetSurface(int slot, long resId, long colorKey) { lock (_lock) { _surfaces[slot] = (resId, colorKey); } }
public void SetSurface(int slot, long resId, long colorKey)
{
lock (_lock)
{
_surfaces[slot] = (resId, colorKey);
_movieStopTimesMs.Remove(slot);
}
}
/// <summary>Op 0x236 handoff: retain the initialized movie graph's IMediaPosition stop time. Null
/// deliberately distinguishes a movie surface with unavailable metadata from an empty movie slot.</summary>
public void SetMovieStopTime(int slot, long? stopTimeMs)
{
lock (_lock) _movieStopTimesMs[slot] = stopTimeMs;
}
/// <summary>Op 0x23f query. False means no movie object occupies the slot; true with a null value
/// means the movie exists but its stop-time query failed or returned unusable metadata.</summary>
public bool TryGetMovieStopTime(int slot, out long? stopTimeMs)
{
lock (_lock) return _movieStopTimesMs.TryGetValue(slot, out stopTimeMs);
}
/// <summary>Op 0x20d: select a surface as the D3D render target; values at or above 1000 restore the
/// device backbuffer in the native engine.</summary>
@@ -333,6 +358,7 @@ public sealed class GfxState
for (int slot = firstSlot; slot < end; slot++)
{
_surfaces.Remove(slot);
_movieStopTimesMs.Remove(slot);
_surfaceTransitions.Remove(slot);
}
if (CurrentRenderTargetSlot >= firstSlot && CurrentRenderTargetSlot < end)
@@ -429,7 +455,14 @@ public sealed class GfxState
o.ColorAnim = true;
}
}
public void ClearSurface(int slot) { lock (_lock) { _surfaces[slot] = (0, 0); } } // create-texture (blank)
public void ClearSurface(int slot)
{
lock (_lock)
{
_surfaces[slot] = (0, 0); // create-texture (blank)
_movieStopTimesMs.Remove(slot);
}
}
/// <summary>Op 0x223: queue a type-0 timed alpha transition into a target surface slot.</summary>
public void QueueSurfaceAlphaTransition(long commandKey, int targetSlot,