public CbgReader(Stream input, CbgMetaData info) : base(input, true)
{
m_info = info;
m_pixel_size = m_info.BPP / 8;
Stride = (int)info.Width * m_pixel_size;
m_key = m_info.Key;
m_magic = 0;
switch (m_info.BPP)
{
case 32: Format = PixelFormats.Bgra32; break;
case 24: Format = PixelFormats.Bgr24; break;
case 8: Format = PixelFormats.Gray8; break;
case 16:
if (2 == m_info.Version)
{
throw new InvalidFormatException();
}
Format = PixelFormats.Bgr565;
break;
default: throw new InvalidFormatException();
}
}
public ParallelCbgDecoder(CbgMetaData info, byte[] dct_data)
{
BPP = info.BPP;
Width = ((int)info.Width + 7) & -8;
Height = ((int)info.Height + 7) & -8;
for (int i = 0; i < 0x80; ++i)
{
DCT[i >> 6, i & 0x3F] = dct_data[i] * DCT_Table[i & 0x3F];
}
}
public ParallelCbgDecoder(CbgMetaData info, byte[] dct_data)
{
BPP = info.BPP;
Width = ((int)info.Width + 7) & -8;
Height = ((int)info.Height + 7) & -8;
for (int i = 0; i < 0x80; ++i)
{
DCT[i >> 6, i & 0x3F] = dct_data[i] * DCT_Table[i & 0x3F];
}
}
public CbgReader(Stream input, CbgMetaData info)
: base(input, true)
{
m_info = info;
m_pixel_size = m_info.BPP / 8;
Stride = (int)info.Width * m_pixel_size;
m_key = m_info.Key;
m_magic = 0;
switch (m_info.BPP)
{
case 32: Format = PixelFormats.Bgra32; break;
case 24: Format = PixelFormats.Bgr24; break;
case 8: Format = PixelFormats.Gray8; break;
case 16:
if (2 == m_info.Version)
throw new InvalidFormatException();
Format = PixelFormats.Bgr565;
break;
default: throw new InvalidFormatException();
}
}
