ImageTargetFileStbImage::ImageTargetFileStbImage( DataTargetRef dataTarget, ImageSourceRef imageSource, ImageTarget::Options options, const std::string &extensionData )
{
if( ! dataTarget->providesFilePath() ) {
throw ImageIoExceptionFailedWrite( "ImageTargetFileStbImage only supports writing to files." );
}
mFilePath = dataTarget->getFilePath();
setSize( imageSource->getWidth(), imageSource->getHeight() );
ImageIo::ColorModel cm = options.isColorModelDefault() ? imageSource->getColorModel() : options.getColorModel();
switch( cm ) {
case ImageIo::ColorModel::CM_RGB:
mNumComponents = ( imageSource->hasAlpha() ) ? 4 : 3;
setColorModel( ImageIo::ColorModel::CM_RGB );
setChannelOrder( ( mNumComponents == 4 ) ? ImageIo::ChannelOrder::RGBA : ImageIo::ChannelOrder::RGB );
break;
case ImageIo::ColorModel::CM_GRAY:
mNumComponents = ( imageSource->hasAlpha() ) ? 2 : 1;
setColorModel( ImageIo::ColorModel::CM_GRAY );
setChannelOrder( ( mNumComponents == 2 ) ? ImageIo::ChannelOrder::YA : ImageIo::ChannelOrder::Y );
break;
default:
throw ImageIoExceptionIllegalColorModel();
}
mExtension = extensionData;
if( mExtension == "hdr" ) { // Radiance files are always float*
setDataType( ImageIo::DataType::FLOAT32 );
mRowBytes = mNumComponents * imageSource->getWidth() * sizeof(float);
}
else {
setDataType( ImageIo::DataType::UINT8 );
mRowBytes = mNumComponents * imageSource->getWidth() * sizeof(float);
}
mData = std::unique_ptr<uint8_t[]>( new uint8_t[mWidth * mRowBytes] );
}
ImageTargetFileTinyExr::ImageTargetFileTinyExr( DataTargetRef dataTarget, ImageSourceRef imageSource, ImageTarget::Options options, const std::string & /*extensionData*/ )
{
if( ! dataTarget->providesFilePath() ) {
throw ImageIoExceptionFailedWrite( "ImageTargetFileTinyExr only supports writing to files." );
}
mFilePath = dataTarget->getFilePath();
setSize( imageSource->getWidth(), imageSource->getHeight() );
ImageIo::ColorModel cm = options.isColorModelDefault() ? imageSource->getColorModel() : options.getColorModel();
switch( cm ) {
case ImageIo::ColorModel::CM_RGB:
mNumComponents = ( imageSource->hasAlpha() ) ? 4 : 3;
setColorModel( ImageIo::ColorModel::CM_RGB );
setChannelOrder( ( mNumComponents == 3 ) ? ImageIo::ChannelOrder::BGR : ImageIo::ChannelOrder::ABGR );
if( mNumComponents == 3 )
mChannelNames = { "G", "B", "R" };
else
mChannelNames = { "A", "G", "B", "R" };
break;
case ImageIo::ColorModel::CM_GRAY:
mNumComponents = ( imageSource->hasAlpha() ) ? 2 : 1;
setColorModel( ImageIo::ColorModel::CM_GRAY );
setChannelOrder( ( mNumComponents == 2 ) ? ImageIo::ChannelOrder::YA : ImageIo::ChannelOrder::Y );
if( mNumComponents == 2 )
mChannelNames = { "Y", "A" };
else
mChannelNames = { "Y" };
break;
default:
throw ImageIoExceptionIllegalColorModel();
}
// TODO: consider supporting half float and uint types as well
setDataType( ImageIo::DataType::FLOAT32 );
mData.resize( mHeight * imageSource->getWidth() * mNumComponents );
}
ImageTargetFileWic::ImageTargetFileWic( DataTargetRef dataTarget, ImageSourceRef imageSource, ImageTarget::Options options, const string &extensionData )
: ImageTarget(), mDataTarget( dataTarget )
{
mCodecGUID = getExtensionMap()[extensionData];
setSize( imageSource->getWidth(), imageSource->getHeight() );
// determine the pixel format we'll request
WICPixelFormatGUID formatGUID;
if( imageSource->hasAlpha() ) {
bool premultAlpha = imageSource->isPremultiplied();
// WIC doesn't support gray+alpha, so we need to do RGBA regardless
if( imageSource->getDataType() == ImageIo::UINT8 )
formatGUID = premultAlpha ? GUID_WICPixelFormat32bppPBGRA : GUID_WICPixelFormat32bppBGRA;
else if( imageSource->getDataType() == ImageIo::UINT16 )
formatGUID = premultAlpha ? GUID_WICPixelFormat64bppPRGBA : GUID_WICPixelFormat64bppRGBA;
else
formatGUID = premultAlpha ? GUID_WICPixelFormat128bppPRGBAFloat : GUID_WICPixelFormat128bppRGBAFloat;
}
else {
ImageIo::ColorModel cm = options.isColorModelDefault() ? imageSource->getColorModel() : options.getColorModel();
if( cm == ImageIo::CM_GRAY ) {
if( imageSource->getDataType() == ImageIo::UINT8 )
formatGUID = GUID_WICPixelFormat8bppGray;
else if( imageSource->getDataType() == ImageIo::UINT16 )
formatGUID = GUID_WICPixelFormat16bppGray;
else
formatGUID = GUID_WICPixelFormat32bppGrayFloat;
}
else { // RGB
if( imageSource->getDataType() == ImageIo::UINT8 )
formatGUID = GUID_WICPixelFormat24bppBGR;
else if( imageSource->getDataType() == ImageIo::UINT16 )
formatGUID = GUID_WICPixelFormat48bppRGB;
else
formatGUID = GUID_WICPixelFormat128bppRGBFloat;
}
}
::HRESULT hr = S_OK;
msw::initializeCom();
// Create WIC factory
IWICImagingFactory *IWICFactoryP = NULL;
hr = ::CoCreateInstance( CLSID_WICImagingFactory, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&IWICFactoryP) );
if( ! SUCCEEDED( hr ) )
throw ImageIoExceptionFailedWrite( "Could not create WIC Factory." );
shared_ptr<IWICImagingFactory> IWICFactory = msw::makeComShared( IWICFactoryP );
IWICBitmapEncoder *encoderP = NULL;
hr = IWICFactory->CreateEncoder( *mCodecGUID, 0, &encoderP );
if( ! SUCCEEDED( hr ) )
throw ImageIoExceptionFailedWrite( "Could not create WIC Encoder." );
mEncoder = msw::makeComShared( encoderP );
// create the stream
IWICStream *pIWICStream = NULL;
hr = IWICFactory->CreateStream( &pIWICStream );
if( ! SUCCEEDED(hr) )
throw ImageIoExceptionFailedWrite( "Could not create WIC stream." );
shared_ptr<IWICStream> stream = msw::makeComShared( pIWICStream );
// initialize the stream based on properties of the cinder::DataSouce
if( mDataTarget->providesFilePath() ) {
#if defined( CINDER_WINRT)
std::string s = mDataTarget->getFilePath().string();
std::wstring filePath = std::wstring(s.begin(), s.end());
#else
std::wstring filePath = mDataTarget->getFilePath().wstring().c_str();
#endif
hr = stream->InitializeFromFilename( filePath.c_str(), GENERIC_WRITE );
if( ! SUCCEEDED(hr) )
throw ImageIoExceptionFailedWrite( "Could not initialize WIC Stream from filename." );
}
else {
shared_ptr<msw::ComOStream> comOStream = msw::makeComShared( new msw::ComOStream( mDataTarget->getStream() ) );
hr = stream->InitializeFromIStream( comOStream.get() );
if( ! SUCCEEDED(hr) )
throw ImageIoExceptionFailedWrite( "Could not initialize WIC Stream from IStream." );
}
hr = mEncoder->Initialize( stream.get(), WICBitmapEncoderNoCache );
if( ! SUCCEEDED( hr ) )
throw ImageIoExceptionFailedWrite( "Could not initialize WIC Encoder." );
// create the frame encoder
IPropertyBag2 *pPropertybag = NULL;
IWICBitmapFrameEncode *pBitmapFrame = NULL;
hr = mEncoder->CreateNewFrame( &pBitmapFrame, &pPropertybag );
if( ! SUCCEEDED( hr ) )
throw ImageIoExceptionFailedWrite( "Could not ceate WIC Frame." );
mBitmapFrame = msw::makeComShared( pBitmapFrame );
// setup the propertyBag to express quality
PROPBAG2 option = { 0 };
option.pstrName = L"ImageQuality";
VARIANT varValue;
VariantInit(&varValue);
varValue.vt = VT_R4;
varValue.fltVal = options.getQuality();
hr = pPropertybag->Write( 1, &option, &varValue );
hr = mBitmapFrame->Initialize( pPropertybag );
if( ! SUCCEEDED( hr ) )
throw ImageIoExceptionFailedWrite( "Could not initialize WIC PROPBAG2." );
hr = mBitmapFrame->SetSize( mWidth, mHeight );
if( ! SUCCEEDED( hr ) )
throw ImageIoExceptionFailedWrite( "Could not set WIC Frame size." );
// ask for our ideal pixel format and then process the one we actually get
hr = mBitmapFrame->SetPixelFormat( &formatGUID );
if( ! SUCCEEDED( hr ) )
throw ImageIoExceptionFailedWrite( "Could not set WIC Frame pixel format." );
setupPixelFormat( formatGUID );
mData = shared_ptr<uint8_t>( new uint8_t[mHeight * mRowBytes], std::default_delete<uint8_t[]>() );
}