OpenSim-Test/OpenSim/Region/Framework/Interfaces/IJ2KDecoder.cs

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using System.Drawing;
using OpenMetaverse;
using OpenMetaverse.Imaging;

namespace OpenSim.Region.Framework.Interfaces
{
    public delegate void DecodedCallback(UUID AssetId, OpenJPEG.J2KLayerInfo[] layers);

    public interface IJ2KDecoder
    {
        void BeginDecode(UUID assetID, byte[] j2kData, DecodedCallback callback);

        /// <summary>
        /// Provides a synchronous decode so that caller can be assured that this executes before the next line
        /// </summary>
        /// <param name="assetID"></param>
        /// <param name="j2kData"></param>
        /// <returns>true if decode was successful.  false otherwise.</returns>
        bool Decode(UUID assetID, byte[] j2kData);

        /// <summary>
        /// Provides a synchronous decode so that caller can be assured that this executes before the next line
        /// </summary>
        /// <param name="assetID"></param>
        /// <param name="j2kData"></param>
        /// <param name="layers">layer data</param>
        /// <param name="components">number of components</param>
        /// <returns>true if decode was successful.  false otherwise.</returns>
        bool Decode(UUID assetID, byte[] j2kData, out OpenJPEG.J2KLayerInfo[] layers, out int components);

        /// <summary>
        /// Provides a synchronous decode direct to an image object
        /// </summary>
        /// <param name="j2kData"></param>
        /// <returns>decoded image or 'null' of unsuccessful</returns>
        Image DecodeToImage(byte[] j2kData);
    }
}