private void UnSerialize(Stream input)
{
m_vtfReader = new IOReader(input);
int ident = this.m_vtfReader.ReadInt();
if (ident == "VTF\0".MakeID())
this.m_bIs360 = false;
else if (ident == "VTFX".MakeID())
{
this.m_bIs360 = true;
this.m_vtfReader.ByteOrder = Endian.Big;
}
else
throw new BadImageFormatException();
// rewind stream
m_vtfReader.Seek(-4);
VTFFileHeader vtfHDR = new VTFFileHeader();
vtfHDR.UnSerialize(this.m_vtfReader);
this.m_dwVersionMajor = (int)vtfHDR.VersionMajor;
this.m_dwVersionMinor = (int)vtfHDR.VersionMinor;
VTFHeader_PC hdr = new VTFHeader_PC();
hdr.UnSerialize(this.m_vtfReader);
this.m_dwResourceCount = (int)hdr.NumResources;
this.m_dwHeight = hdr.Height;
this.m_dwWidth = hdr.Width;
this.m_Format = hdr.ImageFormat;
this.m_dwFlags = hdr.Flags;
this.m_dwFrameCount = hdr.NumFrames;
this.m_dwDepth = hdr.Depth;
// Envmaps only have 1 face, if its not then it must be a cubemap with 7 sides
if (m_dwFlags.IsFlagSet<VTFFlags>(VTFFlags.TEXTUREFLAGS_ENVMAP))
this.m_dwFaceCount = 1;
else
this.m_dwFaceCount = 7;
this.m_vecReflectivity = hdr.Reflectivity;
this.m_flBumpScale = hdr.BumpScale;
this.m_dwLowResImageWidth = hdr.LowResImgWidth;
this.m_dwLowResImageHeight = hdr.LowResImgHeight;
this.m_LowResImageFormat = hdr.LowResImgFmt;
this.m_dwMipCount = ComputeMipCount();
}
