static size_t wicBitsPerPixel( REFGUID targetGuid )
{
IWICImagingFactory* pWIC = getWIC();
if ( !pWIC )
return 0;
IWICComponentInfo *cinfo;
if ( FAILED( pWIC->CreateComponentInfo( targetGuid, &cinfo ) ) )
return 0;
WICComponentType type;
if ( FAILED( cinfo->GetComponentType( &type ) ) )
return 0;
if ( type != WICPixelFormat )
return 0;
IWICPixelFormatInfo *pfinfo;
if ( FAILED( cinfo->QueryInterface( __uuidof(IWICPixelFormatInfo), reinterpret_cast<void**>( &pfinfo ) ) ) )
return 0;
UINT bpp;
if ( FAILED( pfinfo->GetBitsPerPixel( &bpp ) ) )
return 0;
return bpp;
}
size_t WICImageLoader::getBitsPerPixel(WICPixelFormatGUID format)
{
HRESULT hr = E_FAIL;
IWICImagingFactory* pfactory = getWICFactory();
IWICComponentInfo* pCInfo = NULL;
if(pfactory != NULL)
{
hr = pfactory->CreateComponentInfo(format, &pCInfo);
}
WICComponentType cType;
if(SUCCEEDED(hr))
{
hr = pCInfo->GetComponentType(&cType);
}
IWICPixelFormatInfo* pPInfo = NULL;
if(SUCCEEDED(hr) && cType == WICPixelFormat)
{
hr = pCInfo->QueryInterface(IID_IWICPixelFormatInfo, (void**)&pPInfo);
}
UINT bpp = 0;
if(SUCCEEDED(hr))
{
hr = pPInfo->GetBitsPerPixel(&bpp);
}
SafeRelease(&pCInfo);
SafeRelease(&pPInfo);
return bpp;
}
