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feat(gfx): execute gfx command-buffer query/set/lifecycle ops in the VM

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Gfx property on VirtualMachine + dispatch cases for the query ops (0x215/0x216/
0x218/0x21a), set ops (0x217/0x219/0x1ff/0x212/0x213) and lifecycle (0x1a2/0x1f7/
0x1fa). Query ops write results to operands like get-texture-size; set ops mutate
GfxState. Round-trip + distinct-slot tests pass; full suite 36 green (parity held).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
gamer147
2026-07-07 17:48:31 -04:00
parent 7c03371519
commit 648ccca2e7
2 changed files with 88 additions and 0 deletions
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33
engine/Age.Engine/Vm/VirtualMachine.cs
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@@ -23,6 +23,7 @@ public sealed class VirtualMachine
public Dictionary<int, long> Globals { get; } = new();
public Dictionary<int, string> GlobalStrings { get; } = new();
public GfxState Gfx { get; } = new();
public List<(int Offset, string Text, string Script)> Emitted { get; } = new();
public string? HaltReason { get; private set; }
public long Steps { get; private set; }
@@ -225,6 +226,38 @@ public sealed class VirtualMachine
}
case "play-bgm": _host.PlayBgm(Read(a[0])); return pc + 1;
case "play-voice": _host.PlayVoice(Read(a[0])); return pc + 1;
// ---- gfx command-buffer ops (VM-internal GfxState; docs/engine-re.md op-contract table) ----
case "query-gfx-object?": // 0x215 (out)(handle) -> slot | -1
Write(a[0], Gfx.QuerySlot(Read(a[1]))); return pc + 1;
case "query-gfx-field?": // 0x216 (out)(idx)
Write(a[0], Gfx.QueryField(Read(a[1]))); return pc + 1;
case "get-gfx-geom3?": // 0x218 (handle)(outA)(outB)(outC) <- V18
{
var v = Gfx.TryGet(Read(a[0]))?.V18 ?? default;
Write(a[1], v.X); Write(a[2], v.Y); Write(a[3], v.Z); return pc + 1;
}
case "get-gfx-geom3-b?": // 0x21a (handle)(outA)(outB)(outC) <- V24
{
var v = Gfx.TryGet(Read(a[0]))?.V24 ?? default;
Write(a[1], v.X); Write(a[2], v.Y); Write(a[3], v.Z); return pc + 1;
}
case "set-gfx-geom3": // 0x217 (handle)(a)(b)(c) -> V18
Gfx.GetOrCreate(Read(a[0])).V18 = (Read(a[1]), Read(a[2]), Read(a[3])); return pc + 1;
case "set-gfx-geom3-b": // 0x219 (handle)(a)(b)(c) -> V24
Gfx.GetOrCreate(Read(a[0])).V24 = (Read(a[1]), Read(a[2]), Read(a[3])); return pc + 1;
case "set-gfx-geom3-c": // 0x1ff (handle)(a)(b)(c) -> V16c
Gfx.GetOrCreate(Read(a[0])).V16c = (Read(a[1]), Read(a[2]), Read(a[3])); return pc + 1;
case "set-gfx-field64": // 0x212 (idx)(val)
Gfx.GetOrCreate(Read(a[0])).Field64 = Read(a[1]); return pc + 1;
case "set-gfx-xy": // 0x213 (idx)(x)(y)
{
var o = Gfx.GetOrCreate(Read(a[0])); o.Field68 = Read(a[1]); o.Field6c = Read(a[2]); return pc + 1;
}
case "gfx-cmd-register": // 0x1a2 (val) — register/select
case "gfx-elem-create": // 0x1f7 (handle)(count) — ensure object + slot
Gfx.GetOrCreate(Read(a[0])); return pc + 1;
case "gfx-elem-release": // 0x1fa (handle)
Gfx.Release(Read(a[0])); return pc + 1;
default:
// Stub is per-instruction frequency (the VM handles ~30 ops; the rest hit here, e.g.
// 0x258/0x259 stmt markers appear en masse), so gate it with Step — else --trace floods.