STDMETHODIMP AitEncoder::Initialize(IStream *pIStream, WICBitmapEncoderCacheOption cacheOption)
{
HRESULT result = E_INVALIDARG;
if (pIStream)
{
result = S_OK;
stream = pIStream;
if (SUCCEEDED(result))
{
result = VerifyFactory();
}
// Remember the position of the header for later reference
if (SUCCEEDED(result))
{
LARGE_INTEGER zero = { 0 };
result = stream->Seek(zero, STREAM_SEEK_CUR, &headerPos);
}
// Write the header with a placeholder for the number of frames
if (SUCCEEDED(result))
{
BeginBlock(stream, "AIT", 0xFFFFFFFF);
OutputValue(stream, (UINT)0);
result = EndBlock(stream);
}
}
return result;
}
STDMETHODIMP BaseEncoder::GetEncoderInfo(IWICBitmapEncoderInfo **ppIEncoderInfo)
{
HRESULT result = S_OK;
IWICComponentInfo *compInfo = NULL;
if (SUCCEEDED(result))
{
result = VerifyFactory();
}
if (SUCCEEDED(result))
{
result = factory->CreateComponentInfo(CLSID_This, &compInfo);
}
if (SUCCEEDED(result))
{
result = compInfo->QueryInterface(IID_IWICBitmapEncoderInfo, (void**)ppIEncoderInfo);
}
if (compInfo)
{
compInfo->Release();
}
return result;
}
STDMETHODIMP PVR_Decoder::Initialize( IStream *pIStream, WICDecodeOptions cacheOptions )
{
UNREFERENCED_PARAMETER( cacheOptions );
HRESULT result = E_INVALIDARG;
ReleaseMembers( true );
if ( pIStream )
{
PVR_Texture_Header pvrHeader;
result = ReadFromIStream( pIStream, pvrHeader ); // read header
if ( SUCCEEDED( result )) result = VerifyFactory();
if ( SUCCEEDED( result ))
{
if (((pvrHeader.dwpfFlags & PVRTEX_PIXELTYPE) != OGL_PVRTC2) && ((pvrHeader.dwpfFlags & PVRTEX_PIXELTYPE) != OGL_PVRTC4))
{
result = E_INVALIDARG;
}
else
{
PVR_FrameDecode* frame = CreateNewDecoderFrame( m_factory, 0 );
result = frame->LoadImage( pvrHeader, pIStream );
if ( SUCCEEDED( result ))
AddDecoderFrame( frame );
else
delete frame;
}
}
}
else
result = E_INVALIDARG;
return result;
}
STDMETHODIMP BaseEncoder::CreateNewFrame(IWICBitmapFrameEncode **ppIFrameEncode, IPropertyBag2 **ppIEncoderOptions)
{
HRESULT result = E_UNEXPECTED;
if (stream)
{
BaseFrameEncode *frameEncode = NULL;
result = S_OK;
if (NULL == ppIFrameEncode)
{
result = E_INVALIDARG;
}
if (SUCCEEDED(result))
{
result = VerifyFactory();
}
if (SUCCEEDED(result))
{
frameEncode = CreateNewEncoderFrame(factory, stream, frames.size());
if (NULL == frameEncode)
{
result = E_OUTOFMEMORY;
}
}
if (SUCCEEDED(result))
{
AddEncoderFrame(frameEncode);
result = frameEncode->QueryInterface(IID_IWICBitmapFrameEncode, (void**)ppIFrameEncode);
}
if (ppIEncoderOptions != NULL)
{
*ppIEncoderOptions = NULL;
}
}
return result;
}
