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Implement modal startup movies

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This commit is contained in:
gamer147
2026-07-20 20:23:15 -04:00
parent 831475217d
commit df17747f63
16 changed files with 293 additions and 49 deletions
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4
engine/Age.Engine/Hosting/IHost.cs
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@@ -103,4 +103,8 @@ public interface IHost
// Native op 0x236 binds a DirectShow movie decoder to an existing retained texture surface.
// Playback is non-modal: the VM advances to the following instruction while the host publishes frames.
void PlayMovieToSurface(long resourceId, int surfaceSlot, long movieFlags, long syncMask) { }
// Native op 0x20f uses a universal raw-catalog id and parks script execution until the movie
// reaches EOF or the player cancels it. The decoder remains asynchronous; the interactive host
// owns the modal wait so its render loop can continue publishing frames.
void PlayModalMovieToSurface(long rawResourceId, int surfaceSlot, long movieFlags) { }
}

10
engine/Age.Engine/Sys4/ResourceMap.cs
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@@ -41,6 +41,16 @@ public sealed class ResourceMap
entry.Name.EndsWith(".AGF", StringComparison.OrdinalIgnoreCase) ? entry : null;
}
/// <summary>Resolve op 0x20f's universal raw-catalog movie id without applying the executing
/// script's manifest base. AGE stores these MPEG program streams under .AGF names; ReadMovie
/// validates the payload signature before playback.</summary>
public AssetEntry? ResolveRawMovie(long rawId)
{
var entry = _catalog.ResolveRaw(rawId);
return entry is { IsPlaceholder: false } &&
entry.Name.EndsWith(".AGF", StringComparison.OrdinalIgnoreCase) ? entry : null;
}
/// <summary>Decode an AGF directly from loose-first VFS bytes.</summary>
public RgbaImage DecodeTexture(AssetEntry entry) => AgfDecoder.Decode(_store, entry);

23
engine/Age.Engine/Vm/VirtualMachine.cs
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@@ -35,6 +35,7 @@ public sealed class VirtualMachine
private long _autoMessageTime0Ms = 500;
private long _autoMessageTime1Ms = 2000;
private bool _autoVoicePending;
private bool _initialRootRun = true;
private volatile bool _messageSkipEnabled;
private volatile bool _messageSkipServiceActive;
private AdvTextStyle _advTextStyle = AdvTextStyle.Default;
@@ -590,8 +591,13 @@ public sealed class VirtualMachine
Write(a[0], visits == 0 ? (terminal == 0 ? 1 : 0) : terminal);
return pc + 1;
}
case "exit":
case "exit-script": return FRAME_RETURN;
case "exit": return FRAME_RETURN;
case "exit-script":
// Native op 0x9 clears the process-initial root flag before returning control to
// the root-script loader. Root reload itself remains represented by the port's
// existing frame/session boundary; retaining the flag here prevents LOGO/OP replay.
_initialRootRun = false;
return FRAME_RETURN;
case "call-script":
{
long id = a.Count > 0 ? Read(a[0]) : 0;
@@ -1028,6 +1034,19 @@ public sealed class VirtualMachine
_host.FadeBgm((int)Read(a[0]), Read(a[1])); return pc + 1;
case "u00415880": // 0xd9 / semantics: clear-run-state-0x1000
return pc + 1;
case "get-initial-root-run": // 0x130 (out)
Write(a[0], _initialRootRun ? 1 : 0);
return pc + 1;
case "play-modal-movie-to-surface": // 0x20f (raw resource)(surface)(movie flags)
{
long rawResourceId = Read(a[0]);
int surfaceSlot = (int)Read(a[1]);
// The modal and scene-local paths share retained-surface composition. The host's
// distinct entry point preserves 0x20f's raw-id resolver and blocking lifecycle.
Gfx.SetSurface(surfaceSlot, rawResourceId, 0);
_host.PlayModalMovieToSurface(rawResourceId, surfaceSlot, Read(a[2]));
return pc + 1;
}
case "u004221A0": // pre-reference compatibility
case "play-movie-to-surface": // 0x236 (resource)(surface)(movie flags)(sync mask)
{