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Land SYSTEM4-rooted Godot boot

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gamer147
2026-07-20 18:13:32 -04:00
parent 7250de7fea
commit 097473fe16
18 changed files with 385 additions and 111 deletions
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16
engine/Age.Engine.Tests/SoftwareAffineRasterizerTests.cs
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@@ -99,6 +99,22 @@ public class SoftwareAffineRasterizerTests
Assert.Equal(new byte[4], hidden);
}
[Fact]
public void BlitRgba_AdditiveMakesBlackTransparentAndAddsScaledColor()
{
var identity = new Affine2D(1, 0, 0, 1, 0, 0);
byte[] background = { 40, 50, 60, 255 };
byte[] black = { 0, 0, 0, 255 };
SoftwareAffineRasterizer.BlitRgba(background, 1, 1, black, 1, 1, 0, 0, 1, 1,
identity, 0xffffff, 0, 1, multiplyTint: true, blend: BlendKind.Additive);
Assert.Equal(new byte[] { 40, 50, 60, 255 }, background);
byte[] blueGlow = { 16, 32, 200, 128 };
SoftwareAffineRasterizer.BlitRgba(background, 1, 1, blueGlow, 1, 1, 0, 0, 1, 1,
identity, 0xffffff, 0, 0.5f, multiplyTint: true, blend: BlendKind.Additive);
Assert.Equal(new byte[] { 43, 57, 109, 255 }, background);
}
// Pre-fast-path affine algorithm retained here as an independent differential oracle.
private static void ReferenceBlit(byte[] dst, int dstW, int dstH, byte[] src, int srcW,
int srcX, int srcY, int width, int height, Affine2D transform,