public static RawTextureInfo Read(byte[] data)
{
using (var ms = new MemoryStream(data))
{
using (var br = new BinaryReader(ms))
{
CRNHeaderStruct header = CRNHeaderStruct.Read(br);
uint sig = header.m_sig.Value;
if (sig != CRNHeaderStruct.CRN_SIG_VALUE)
{
return(null);
}
var info = new RawTextureInfo();
info.Width = (int)header.m_width.Value;
info.Height = (int)header.m_height.Value;
info.HasMips = header.m_levels.Value > 1;
uint format = header.m_format.Value;
if (format == cCRNFmtDXT1)
{
info.Format = TextureFormat.DXT1Crunched;
}
else if (format == cCRNFmtDXT5)
{
info.Format = TextureFormat.DXT5Crunched;
}
else
{
Debug.LogError("Unknown crn format = " + header.m_format.Value);
}
info.RawData = data;
return(info);
}
}
}
public static CRNHeaderStruct Read(BinaryReader br)
{
CRNHeaderStruct header = new CRNHeaderStruct();
header.m_sig = new crn_packed_uint2(br);
header.m_header_size = new crn_packed_uint2(br);
header.m_header_crc16 = new crn_packed_uint2(br);
header.m_data_size = new crn_packed_uint4(br);
header.m_data_crc16 = new crn_packed_uint2(br);
header.m_width = new crn_packed_uint2(br);
header.m_height = new crn_packed_uint2(br);
header.m_levels = new crn_packed_uint1(br);
header.m_faces = new crn_packed_uint1(br);
header.m_format = new crn_packed_uint1(br);
header.m_flags = new crn_packed_uint2(br);
header.m_reserved = new crn_packed_uint4(br);
header.m_userdata0 = new crn_packed_uint4(br);
header.m_userdata1 = new crn_packed_uint4(br);
header.m_color_endpoints = new crn_palette(br);
header.m_color_selectors = new crn_palette(br);
header.m_alpha_endpoints = new crn_palette(br);
header.m_alpha_selectors = new crn_palette(br);
header.m_tables_size = new crn_packed_uint2(br);
header.m_tables_ofs = new crn_packed_uint3(br);
header.m_level_ofs = new crn_packed_uint4(br);
return(header);
}