Decode sharp kullanarak dokuyu kodlayın ve kodlayın

Using Aspose.3D for .NET, developers use external image encoder and decoders to load textures or save textures into different image formats.

Imagesharp kullanarak bir doku kodek uygulamak

Doku kodlayıcıları ve doku kod çözücüsünü tanımlamak için aşağıdaki sınıfı kullanın:

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using Aspose.ThreeD.Utilities;
using Aspose.ThreeD.Render;
using SixLabors.ImageSharp;
using SixLabors.ImageSharp.PixelFormats;
using System.Runtime.InteropServices;
using SixLabors.ImageSharp.Formats;

namespace Aspose.ThreeD
{

    /// <summary>
    /// Uses ImageSharp for encoding/decoding textures for Aspose.3D textures.
    /// </summary>
    public class ImageSharpCodec : ITextureCodec, ITextureDecoder
    {
        class Encoder<T> : ITextureEncoder where T:IImageEncoder, new()
        {
            public string FileExtension { get; }
            public Encoder(string ext)
            {
                FileExtension = ext;
            }

            public void Encode(TextureData texture, Stream stream)
            {
                var bmp = ToBitmap(texture);
                var encoder = new T();
                bmp.Save(stream, encoder);
            }
        }
        /// <summary>
        /// Convert TextureData to Image
        /// </summary>
        /// <param name="td"></param>
        /// <returns></returns>
        public unsafe static Image<Bgra32> ToBitmap(TextureData td)
        {
            using(var map = td.MapPixels(PixelMapMode.ReadOnly, PixelFormat.A8R8G8B8))
            {
                var ret = new Image<Bgra32>(td.Width, td.Height);
                ret.ProcessPixelRows(accessor =>
                {
                    fixed (byte* p = map.Data)
                    {
                        for (int y = 0; y < ret.Height; y++)
                        {
                            var offset = y * map.Stride;
                            var src = new Span<Bgra32>(p + offset, map.Stride);
                            var dst = accessor.GetRowSpan(y);
                            src.CopyTo(dst);
                        }
                    }
                });
                return ret;
            }
        }
        /// <summary>
        /// Convert Image to TextureData
        /// </summary>
        /// <param name="img"></param>
        /// <param name="reverseY"></param>
        /// <returns></returns>
        public unsafe static TextureData ToTextureData(Image<Bgra32> img, bool reverseY)
        {
            var ret = new TextureData(img.Width, img.Height, PixelFormat.A8R8G8B8);
            using (var map = ret.MapPixels(PixelMapMode.WriteOnly))
            {
                img.ProcessPixelRows(accessor =>
                {
                    fixed (byte* src = map.Data)
                    {
                        for (int y = 0; y < img.Height; y++)
                        {
                            var offset = 0;
                            if (reverseY)
                                offset = (map.Height - y - 1) * map.Stride;
                            else
                                offset = y * map.Stride;
                            var dst = new Span<Bgra32>(src + offset, map.Stride);
                            var row = accessor.GetRowSpan(y);
                            row.CopyTo(dst);
                        }
                    }
                });
            }
            return ret;

        }

        /// <summary>
        /// Decode texture from stream, return null if failed to decode.
        /// </summary>
        /// <param name="stream">Texture data source stream</param>
        /// <param name="reverseY">Flip the texture</param>
        /// <returns>Decoded texture data or null if not supported.</returns>
        public unsafe TextureData Decode(Stream stream, bool reverseY)
        {
            using (var img = Image.Load<Bgra32>(stream))
            {
                return ToTextureData(img, reverseY);
            }
        }

        /// <summary>
        /// Gets supported texture decoders.
        /// </summary>
        /// <returns></returns>
        public ITextureDecoder[] GetDecoders()
        {
            return new ITextureDecoder[] { this };

        }

        /// <summary>
        /// Gets supported texture encoders. 
        /// </summary>
        /// <returns></returns>
        public ITextureEncoder[] GetEncoders()
        {
            List<ITextureEncoder> ret = new List<ITextureEncoder>();
            ret.Add(new Encoder<SixLabors.ImageSharp.Formats.Bmp.BmpEncoder>("bmp"));
            ret.Add(new Encoder<SixLabors.ImageSharp.Formats.Png.PngEncoder>("png"));
            ret.Add(new Encoder<SixLabors.ImageSharp.Formats.Jpeg.JpegEncoder>("jpg"));
            ret.Add(new Encoder<SixLabors.ImageSharp.Formats.Jpeg.JpegEncoder>("jpeg"));
            ret.Add(new Encoder<SixLabors.ImageSharp.Formats.Pbm.PbmEncoder>("pbm"));
            ret.Add(new Encoder<SixLabors.ImageSharp.Formats.Gif.GifEncoder>("gif"));
            ret.Add(new Encoder<SixLabors.ImageSharp.Formats.Tga.TgaEncoder>("tga"));
            ret.Add(new Encoder<SixLabors.ImageSharp.Formats.Tiff.TiffEncoder>("tif"));
            ret.Add(new Encoder<SixLabors.ImageSharp.Formats.Tiff.TiffEncoder>("tiff"));
            ret.Add(new Encoder<SixLabors.ImageSharp.Formats.Webp.WebpEncoder>("webp"));
            return ret.ToArray();
        }


    }

}

Aspose ‘a kaydedin. 3D

Şimdi aspsoe. 3D:

    Aspose.ThreeD.Render.TextureCodec.RegisterCodec(new Aspose.ThreeD.ImageSharpCodec());

Bu kodek kaydedildiğinde, tüm imagesharp desteklenen görüntü biçimleri metin verilerinde kullanılabilir. kaydet.