// 
// Radegast Metaverse Client
// Copyright (c) 2009-2013, Radegast Development Team
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// 
//     * Redistributions of source code must retain the above copyright notice,
//       this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in the
//       documentation and/or other materials provided with the distribution.
//     * Neither the name of the application "Radegast", nor the names of its
//       contributors may be used to endorse or promote products derived from
//       this software without specific prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Based on code from Aurora Sim and OpenSimulator
// Copyright (c) Contributors, http://aurora-sim.org/, http://opensimulator.org/
//
// $Id$
//


using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Reflection;
using OpenMetaverse;
using OpenMetaverse.Imaging;
using OpenMetaverse.Rendering;
using OpenMetaverse.StructuredData;

namespace Radegast.Rendering
{
    public static class ImageUtils
    {
        /// <summary>
        /// Performs bilinear interpolation between four values
        /// </summary>
        /// <param name="v00">First, or top left value</param>
        /// <param name="v01">Second, or top right value</param>
        /// <param name="v10">Third, or bottom left value</param>
        /// <param name="v11">Fourth, or bottom right value</param>
        /// <param name="xPercent">Interpolation value on the X axis, between 0.0 and 1.0</param>
        /// <param name="yPercent">Interpolation value on fht Y axis, between 0.0 and 1.0</param>
        /// <returns>The bilinearly interpolated result</returns>
        public static float Bilinear(float v00, float v01, float v10, float v11, float xPercent, float yPercent)
        {
            return Utils.Lerp(Utils.Lerp(v00, v01, xPercent), Utils.Lerp(v10, v11, xPercent), yPercent);
        }

        /// <summary>
        /// Performs a high quality image resize
        /// </summary>
        /// <param name="image">Image to resize</param>
        /// <param name="width">New width</param>
        /// <param name="height">New height</param>
        /// <returns>Resized image</returns>
        public static Bitmap ResizeImage(Image image, int width, int height)
        {
            Bitmap result = new Bitmap(width, height);

            using (Graphics graphics = Graphics.FromImage(result))
            {
                graphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
                graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
                graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
                graphics.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;

                graphics.DrawImage(image, 0, 0, result.Width, result.Height);
            }

            return result;
        }
    }
}