/// Init the color block with the contents of the given block.
public ColorBlock(ColorBlock block)
: this()
{
for (uint i = 0; i < 16; i++)
{
Data[(int)i] = block.Color(i);
}
}
private static void ReadBlock(ColorBlock rgba, Stream ms)
{
var blockBuffer = new byte[Marshal.SizeOf(typeof(BlockDXT5))];
ms.Read(blockBuffer, 0, blockBuffer.Length);
var blockdxt5 = Utils.ByteArrayToStructure<BlockDXT5>(blockBuffer);
blockdxt5.decodeBlock(ref rgba);
}
private static void ReadBlockFormat(RawImage ret, Stream ms)
{
ret.ColFormat = RawImage.Format.Format_ARGB;
uint w = ret.Width;
uint h = ret.Height;
uint bw = (w + 3) / 4;
uint bh = (h + 3) / 4;
for (uint by = 0; by < bh; by++)
for (uint bx = 0; bx < bw; bx++)
{
var block = new ColorBlock();
// Read color block.
ReadBlock(block, ms);
// Write color block.
for (uint y = 0; y < Math.Min(4, h - 4 * by); y++)
for (uint x = 0; x < Math.Min(4, w - 4 * bx); x++)
ret.Data[(4 * by + y) * ret.Width + (4 * bx + x)] = block.Color(x, y);
}
}
