static void CompressMasked(byte[] rgba, int mask, ref byte[] block, int offset, SquishFlags flags, float?metric)
{
// fix any bad flags
flags = FixFlags(flags);
// get the block locations
int colourBlock = offset;
int alphaBlock = offset;
if ((flags & (SquishFlags.kDxt3 | SquishFlags.kDxt5)) != 0)
{
colourBlock += 8;
}
// create the minimal point set
ColourSet colours = new ColourSet(rgba, mask, flags);
// check the compression type and compress colour
if (colours.Count == 1)
{
// always do a single colour fit
SingleColourFit fit = new SingleColourFit(colours, flags);
fit.Compress(ref block, colourBlock);
}
else if ((flags & SquishFlags.kColourRangeFit) != 0 || colours.Count == 0)
{
// do a range fit
RangeFit fit = new RangeFit(colours, flags, metric);
fit.Compress(ref block, colourBlock);
}
else
{
// default to a cluster fit (could be iterative or not)
ClusterFit fit = new ClusterFit(colours, flags, metric);
fit.Compress(ref block, colourBlock);
}
// compress alpha separately if necessary
if ((flags & SquishFlags.kDxt3) != 0)
{
CompressAlphaDxt3(rgba, mask, ref block, alphaBlock);
}
else if ((flags & SquishFlags.kDxt5) != 0)
{
CompressAlphaDxt5(rgba, mask, ref block, alphaBlock);
}
}
static void CompressMasked(byte[] rgba, int mask, ref byte[] block, int offset, SquishFlags flags, float? metric)
{
// fix any bad flags
flags = FixFlags(flags);
// get the block locations
int colourBlock = offset;
int alphaBlock = offset;
if ((flags & (SquishFlags.kDxt3 | SquishFlags.kDxt5)) != 0) { colourBlock += 8; }
// create the minimal point set
ColourSet colours = new ColourSet(rgba, mask, flags);
// check the compression type and compress colour
if (colours.Count == 1)
{
// always do a single colour fit
SingleColourFit fit = new SingleColourFit(colours, flags);
fit.Compress(ref block, colourBlock);
}
else if ((flags & SquishFlags.kColourRangeFit) != 0 || colours.Count == 0)
{
// do a range fit
RangeFit fit = new RangeFit(colours, flags, metric);
fit.Compress(ref block, colourBlock);
}
else
{
// default to a cluster fit (could be iterative or not)
ClusterFit fit = new ClusterFit(colours, flags, metric);
fit.Compress(ref block, colourBlock);
}
// compress alpha separately if necessary
if ((flags & SquishFlags.kDxt3) != 0)
{
CompressAlphaDxt3(rgba, mask, ref block, alphaBlock);
}
else if ((flags & SquishFlags.kDxt5) != 0)
{
CompressAlphaDxt5(rgba, mask, ref block, alphaBlock);
}
}