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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 7f900c8fc6
commit 992215cc48
13 changed files with 300 additions and 53 deletions
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8
engine/Age.Engine/Model/SoftwareAffineRasterizer.cs
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@@ -5,7 +5,7 @@ public static class SoftwareAffineRasterizer
{
public static void BlitRgba(byte[] dst, int dstW, int dstH, byte[] src, int srcW, int srcH,
int srcX, int srcY, int width, int height, Affine2D localToDest,
long tint, float tintStrength, float opacity)
long tint, float tintStrength, float opacity, bool multiplyTint = false)
{
if (width <= 0 || height <= 0 || !localToDest.TryInverse(out var inv)) return;
Bounds(localToDest, width, height, dstW, dstH, out int x0, out int y0, out int x1, out int y1);
@@ -19,9 +19,9 @@ public static class SoftwareAffineRasterizer
if ((uint)u >= (uint)width || (uint)v >= (uint)height) continue;
int si=((srcY+v)*srcW+(srcX+u))*4, di=(y*dstW+x)*4;
int sa=src[si+3]*ia/255; if(sa==0) continue;
int sr=(src[si]*(255-istr)+tr*istr)/255;
int sg=(src[si+1]*(255-istr)+tg*istr)/255;
int sb=(src[si+2]*(255-istr)+tb*istr)/255;
int sr=multiplyTint ? src[si]*tr/255 : (src[si]*(255-istr)+tr*istr)/255;
int sg=multiplyTint ? src[si+1]*tg/255 : (src[si+1]*(255-istr)+tg*istr)/255;
int sb=multiplyTint ? src[si+2]*tb/255 : (src[si+2]*(255-istr)+tb*istr)/255;
Blend(dst,di,sr,sg,sb,sa);
}
}