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Add basic 16bit lm writing

This commit is contained in:
Jarrod Doyle 2024-12-10 20:06:03 +00:00
parent fc91970c45
commit ca3dfa677f
Signed by: Jayrude
GPG Key ID: 38B57B16E7C0ADF7
1 changed files with 20 additions and 4 deletions
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24
KeepersCompound.LGS/Database/Chunks/WorldRep.cs
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@ -245,10 +245,26 @@ public class WorldRep : IChunk
{ {
var idx = (x + y * Width) * Bpp; var idx = (x + y * Width) * Bpp;
var pLayer = Pixels[layer]; var pLayer = Pixels[layer];
pLayer[idx] = (byte)Math.Clamp(pLayer[idx] + r, 0, 255); switch (Bpp)
pLayer[idx + 1] = (byte)Math.Clamp(pLayer[idx + 1] + g, 0, 255); {
pLayer[idx + 2] = (byte)Math.Clamp(pLayer[idx + 2] + b, 0, 255); // 1bpp isn't really supported (does nd dromed even produce it?)
pLayer[idx + 3] = 255; // TODO: seems to be under powered (int conversions rounding down?)
case 2:
var raw2 = pLayer[idx] + (pLayer[idx + 1] << 8);
var newR = (int)Math.Clamp((raw2 & 31) + r * 31f / 255f, 0, 31);
var newG = (int)Math.Clamp(((raw2 >> 5) & 31) + g * 31f / 255f, 0, 31);
var newB = (int)Math.Clamp(((raw2 >> 10) & 31) + b * 31f / 255f, 0, 31);
raw2 = newR + (newG << 5) + (newB << 10);
pLayer[idx] = (byte)(raw2 & 0xff);
pLayer[idx + 1] = (byte)((raw2 >> 8) & 0xff);
break;
case 4:
pLayer[idx] = (byte)Math.Clamp(pLayer[idx] + r, 0, 255);
pLayer[idx + 1] = (byte)Math.Clamp(pLayer[idx + 1] + g, 0, 255);
pLayer[idx + 2] = (byte)Math.Clamp(pLayer[idx + 2] + b, 0, 255);
pLayer[idx + 3] = 255;
break;
}
_litLayers[layer] = true; _litLayers[layer] = true;
} }