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Implement native 0x202 color interpolation

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This commit is contained in:
gamer147
2026-07-10 20:49:03 -04:00
parent d6d1be984e
commit 8731d6389c
13 changed files with 300 additions and 53 deletions
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13
engine/Age.Engine.Tests/SoftwareAffineRasterizerTests.cs
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@@ -27,4 +27,17 @@ public class SoftwareAffineRasterizerTests
Assert.InRange(colored, 3, 5);
Assert.Equal(0, dst[(1*5+1)*4+3]);
}
[Fact]
public void BlitRgba_MultiplyTintUsesD3dStyleRgbModulationAndOpacity()
{
byte[] src = { 200, 100, 50, 255 };
byte[] dst = new byte[4];
SoftwareAffineRasterizer.BlitRgba(dst, 1, 1, src, 1, 1, 0, 0, 1, 1,
new Affine2D(1, 0, 0, 1, 0, 0), 0x80ff40, 0, 0.5f, multiplyTint: true);
Assert.InRange(dst[0], 49, 50);
Assert.InRange(dst[1], 49, 50);
Assert.InRange(dst[2], 5, 7);
Assert.InRange(dst[3], 126, 127);
}
}