ImageSource::RowFunc ImageSource::setupRowFuncForTypesAndTargetColorModel( ImageTargetRef target )
{
switch( mColorModel ) {
case CM_RGB: {
setupRowFuncRgbSource( target );
bool alpha = ( mRowFuncSourceAlpha != -1 ) && ( mRowFuncTargetAlpha != -1 );
if( alpha )
return &ImageSource::rowFuncSourceRgb<SD,TD,TCM,true>;
else
return &ImageSource::rowFuncSourceRgb<SD,TD,TCM,false>;
}
break;
case CM_GRAY: {
setupRowFuncGraySource( target );
bool alpha = ( mRowFuncSourceAlpha != -1 ) && ( mRowFuncTargetAlpha != -1 );
if( alpha )
return &ImageSource::rowFuncSourceGray<SD,TD,TCM,true>;
else
return &ImageSource::rowFuncSourceGray<SD,TD,TCM,false>;
}
break;
default:
throw ImageIoExceptionIllegalColorModel();
}
}
vec3 ColorAT<T>::get( ColorModel cm ) const
{
switch( cm ) {
case CM_HSV:
return rgbToHsv( Colorf( r, g, b ) );
break;
case CM_RGB:
return vec3( CHANTRAIT<float>::convert( r ), CHANTRAIT<float>::convert( g ), CHANTRAIT<float>::convert( b ) );
break;
default:
throw ImageIoExceptionIllegalColorModel();
}
}
ImageSource::RowFunc ImageSource::setupRowFuncForTypes( ImageTargetRef target )
{
switch( target->getColorModel() ) {
case CM_RGB:
return setupRowFuncForTypesAndTargetColorModel<SD,TD,CM_RGB>( target );
break;
case CM_GRAY:
return setupRowFuncForTypesAndTargetColorModel<SD,TD,CM_GRAY>( target );
break;
case CM_UNKNOWN:
default:
throw ImageIoExceptionIllegalColorModel();
}
}
void ColorAT<T>::set( ColorModel cm, const vec4 &v )
{
a = v.w;
switch( cm ) {
case CM_HSV: {
Colorf rgb = hsvToRgb( vec3( v ) );
r = CHANTRAIT<T>::convert( rgb.r );
g = CHANTRAIT<T>::convert( rgb.g );
b = CHANTRAIT<T>::convert( rgb.b );
}
break;
case CM_RGB:
r = CHANTRAIT<T>::convert( v.r );
g = CHANTRAIT<T>::convert( v.g );
b = CHANTRAIT<T>::convert( v.b );
break;
default:
throw ImageIoExceptionIllegalColorModel();
}
}
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 );
}
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] );
}