package ar.com.hjg.pngj;

import ar.com.hjg.pngj.chunks.ChunkRaw;
import ar.com.hjg.pngj.chunks.PngChunk;

/**
 * Factory to create a {@link PngChunk} from a {@link ChunkRaw}.
 * <p>
 * Used by {@link PngReader}
 */
public interface IChunkFactory {

	/**
	 * @param chunkRaw
	 *            Chunk in raw form. Data can be null if it was skipped or
	 *            processed directly (eg IDAT)
	 * @param imgInfo
	 *            Not normally necessary, but some chunks want this info
	 * @return should never return null.
	 */
	PngChunk createChunk(ChunkRaw chunkRaw, ImageInfo imgInfo);

}