bool ImageSegmenter::_generateRaw( const ImageWrapper& image,
const Handler& handler ) const
{
const SegmentParametersList& paramList = _generateSegmentParameters( image );
// resulting Raw segments
for( SegmentParametersList::const_iterator it = paramList.begin();
it != paramList.end(); ++it )
{
Segment segment;
segment.parameters = *it;
segment.imageData.reserve( segment.parameters.width *
segment.parameters.height *
image.getBytesPerPixel( ));
if( paramList.size() == 1 )
{
// If we are not segmenting the image, just append the image data
segment.imageData.append( (const char*)image.data,
int(image.getBufferSize( )));
}
else // Copy the image subregion
{
// assume imageBuffer isn't padded
const size_t imagePitch = image.width * image.getBytesPerPixel();
const size_t offset = segment.parameters.y * imagePitch +
segment.parameters.x * image.getBytesPerPixel();
const char* lineData = (const char*)image.data + offset;
for( unsigned int i = 0; i < segment.parameters.height; ++i )
{
segment.imageData.append( lineData, segment.parameters.width *
image.getBytesPerPixel( ));
lineData += imagePitch;
}
}
if( !handler( segment ))
return false;
}
return true;
}
