private static void ExportR16ToDDS(Stream destination, Stream source, DDSConvertParameters @params)
{
DDSConvertParameters bgraParams = new DDSConvertParameters();
@params.CopyTo(bgraParams);
bgraParams.RGBBitCount = 32;
bgraParams.RBitMask = 0xFF0000;
bgraParams.GBitMask = 0xFF00;
bgraParams.BBitMask = 0xFF;
bgraParams.ABitMask = 0xFF000000;
ExportDDSHeader(destination, bgraParams);
using (BinaryReader binReader = new BinaryReader(source, Encoding.UTF8, true))
{
long pixelCount = @params.BitMapDepth * @params.Height * @params.Width;
for (int i = 0; i < pixelCount; i++)
{
ushort pixel = binReader.ReadUInt16();
float f = Half.ToHalf(pixel);
byte R = (byte)Math.Ceiling(f * 255.0);
destination.WriteByte(0); // B
destination.WriteByte(0); // G
destination.WriteByte(R); // R
destination.WriteByte(0xFF); // A
}
}
}
private static void ExportRGBA32ToDDS(Stream destination, Stream source, DDSConvertParameters @params)
{
DDSConvertParameters bgraParams = new DDSConvertParameters();
@params.CopyTo(bgraParams);
bgraParams.RBitMask = 0xFF0000;
bgraParams.BBitMask = 0xFF;
ExportDDSHeader(destination, bgraParams);
using (BinaryReader binReader = new BinaryReader(source, Encoding.UTF8, true))
{
long pixelCount = @params.BitMapDepth * @params.Height * @params.Width;
for (int i = 0; i < pixelCount; i++)
{
byte R = binReader.ReadByte();
byte G = binReader.ReadByte();
byte B = binReader.ReadByte();
byte A = binReader.ReadByte();
destination.WriteByte(B); // B
destination.WriteByte(G); // G
destination.WriteByte(R); // R
destination.WriteByte(A); // A
}
}
}
private static void ExportRGBA16ToDDS(Stream destination, Stream source, DDSConvertParameters @params)
{
DDSConvertParameters bgraParams = new DDSConvertParameters();
@params.CopyTo(bgraParams);
bgraParams.RBitMask = 0xF00;
bgraParams.BBitMask = 0xF;
ExportDDSHeader(destination, bgraParams);
using (BinaryReader binReader = new BinaryReader(source, Encoding.UTF8, true))
{
long pixelCount = @params.BitMapDepth * @params.Height * @params.Width;
for (int i = 0; i < pixelCount; i++)
{
int pixel = binReader.ReadUInt16();
int c1 = (0x00F0 & pixel) >> 4; // B
int c2 = (0x0F00 & pixel) >> 4; // G
destination.WriteByte((byte)(c1 | c2));
c1 = (0xF000 & pixel) >> 12; // R
c2 = (0x000F & pixel) << 4; // A
destination.WriteByte((byte)(c1 | c2));
}
}
}
