public static void Blit(IndexedTexture Source, Palette SourcePalette, MemoryTexture Destination)
{
if (Source == null || SourcePalette == null || Destination == null)
{
return;
}
var width = Math.Min(Source.Width, Destination.Width);
var height = Math.Min(Source.Height, Destination.Height);
for (var y = 0; y < height; ++y)
{
var sourceIndex = Source.Index(0, y);
var destinationIndex = Destination.Index(0, y);
var endSourceIndex = sourceIndex + width;
while (sourceIndex < endSourceIndex)
{
var sourcePixel = SourcePalette[Source.Data[sourceIndex]];
if (sourcePixel.A != 0)
{
Destination.Data[destinationIndex] = sourcePixel;
}
sourceIndex += 1;
destinationIndex += 1;
}
}
}
public static MemoryTexture ComposeTexture(IndexedTexture Source, Palette Palette)
{
var r = new MemoryTexture(Source.Width, Source.Height);
for (var i = 0; i < Source.Data.Length; ++i)
{
r.Data[i] = Palette[Source.Data[i]];
}
return(r);
}
public static IndexedTexture DecomposeTexture(MemoryTexture Source, Palette Palette)
{
var r = new IndexedTexture(Source.Width, Source.Height);
for (var i = 0; i < Source.Data.Length; ++i)
{
var index = Palette.IndexOf(Source.Data[i]);
if (index >= 0)
{
r.Data[i] = (byte)index;
}
else
{
r.Data[i] = 0;
}
}
return(r);
}
