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Complete native numbered-save round trips

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This commit is contained in:
gamer147
2026-07-24 23:25:54 -04:00
parent 4db7e412bd
commit 0a4e200876
17 changed files with 907 additions and 89 deletions
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22
engine/Age.Engine.Tests/NativeNumberedSaveCodecTests.cs
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@@ -28,6 +28,8 @@ public class NativeNumberedSaveCodecTests
new NativeSavedGfxObject(0xcf08,
Enumerable.Range(0, NativeNumberedSaveState.GfxRecordSize)
.Select(i => unchecked((byte)i)).ToArray()),
new NativeSavedGfxObject(0xcf09,
Enumerable.Repeat((byte)0xa5, NativeNumberedSaveState.GfxRecordSize).ToArray()),
],
RangeTransformFirst = 100,
RangeTransformCount = 4,
@@ -53,7 +55,16 @@ public class NativeNumberedSaveCodecTests
Assert.Equal(state.PointerGlobals, decoded.PointerGlobals);
Assert.Equal(state.GfxObjects[0].Handle, decoded.GfxObjects[0].Handle);
Assert.Equal(state.GfxObjects[0].Record, decoded.GfxObjects[0].Record);
Assert.Equal(state.GfxObjects[1].Handle, decoded.GfxObjects[1].Handle);
Assert.Equal(state.GfxObjects[1].Record, decoded.GfxObjects[1].Record);
Assert.False(decoded.LegacyTightGfxLayout);
Assert.Equal(state.RangeTransformRecord, decoded.RangeTransformRecord);
const int nativeEntryStride = (1 + NativeNumberedSaveState.GfxRecordSize) * 4;
int objectsAt = FindGfxObjects(encoded, 2, 0xcf08);
Assert.Equal(0xcf08, BinaryPrimitives.ReadInt32LittleEndian(encoded.AsSpan(objectsAt)));
Assert.Equal(0xcf09, BinaryPrimitives.ReadInt32LittleEndian(
encoded.AsSpan(objectsAt + nativeEntryStride)));
}
[Fact]
@@ -153,4 +164,15 @@ public class NativeNumberedSaveCodecTests
BinaryPrimitives.ReadInt32LittleEndian(
state.SurfaceRecords.AsSpan(slot * 20 + 8))));
}
private static int FindGfxObjects(byte[] payload, int count, int firstHandle)
{
for (int offset = 0; offset <= payload.Length - 12; offset += 4)
if (BinaryPrimitives.ReadInt32LittleEndian(payload.AsSpan(offset)) ==
NativeNumberedSaveState.GfxRecordSize
&& BinaryPrimitives.ReadInt32LittleEndian(payload.AsSpan(offset + 4)) == count
&& BinaryPrimitives.ReadInt32LittleEndian(payload.AsSpan(offset + 8)) == firstHandle)
return offset + 8;
throw new Xunit.Sdk.XunitException("Encoded gfx table was not found.");
}
}