| | | 1 | | using System; |
| | | 2 | | using System.IO; |
| | | 3 | | using System.Runtime.CompilerServices; |
| | | 4 | | using System.Text; |
| | | 5 | | using System.Threading.Tasks; |
| | | 6 | | using ReFlex.Core.Common.Components; |
| | | 7 | | using ReFlex.Core.Common.Util; |
| | | 8 | | using SixLabors.ImageSharp; |
| | | 9 | | using SixLabors.ImageSharp.PixelFormats; |
| | | 10 | | using SixLabors.ImageSharp.Processing; |
| | | 11 | | |
| | | 12 | | namespace Graphics |
| | | 13 | | { |
| | | 14 | | public class StreamDataConverter |
| | | 15 | | { |
| | | 16 | | public static byte[] ConvertJpegToRawBytes(byte[] imageData, int targetWidth, int targetHeight, DepthImageFormat |
| | 0 | 17 | | { |
| | 0 | 18 | | switch (sourceFormat) |
| | | 19 | | { |
| | | 20 | | case DepthImageFormat.Greyccale48bpp: |
| | 0 | 21 | | return ConvertJpegToRawBytes<Rgb48>(imageData, targetWidth, targetHeight, convertBlackWhite); |
| | | 22 | | case DepthImageFormat.Greyscale8bpp: |
| | 0 | 23 | | return ConvertJpegToRawBytes<L8>(imageData, targetWidth, targetHeight, convertBlackWhite); |
| | | 24 | | case DepthImageFormat.Rgb24bpp: |
| | | 25 | | default: |
| | 0 | 26 | | return ConvertJpegToRawBytes<Rgb24>(imageData, targetWidth, targetHeight, convertBlackWhite); |
| | | 27 | | } |
| | 0 | 28 | | } |
| | | 29 | | |
| | | 30 | | public static byte[] ConvertJpegToRawBytes<T>(byte[] imageData, int targetWidth, int targetHeight, bool convertB |
| | 0 | 31 | | { |
| | 0 | 32 | | using (var ms1 = new MemoryStream(imageData)) |
| | 0 | 33 | | using (var image = Image.Load<T>(ms1)) |
| | 0 | 34 | | { |
| | 0 | 35 | | var options = new ResizeOptions |
| | 0 | 36 | | { |
| | 0 | 37 | | Mode = ResizeMode.Crop, |
| | 0 | 38 | | Size = new Size(targetWidth, targetHeight), |
| | 0 | 39 | | Position = AnchorPositionMode.TopLeft |
| | 0 | 40 | | }; |
| | 0 | 41 | | image.Mutate(c => c.Resize(options)); |
| | 0 | 42 | | if (convertBlackWhite) |
| | 0 | 43 | | image.Mutate(c => c.BlackWhite()); |
| | | 44 | | |
| | 0 | 45 | | var result = new byte[image.Width * image.Height * Unsafe.SizeOf<Rgba32>()]; |
| | 0 | 46 | | image.CopyPixelDataTo(result); |
| | | 47 | | |
| | 0 | 48 | | return result; |
| | | 49 | | } |
| | 0 | 50 | | } |
| | | 51 | | |
| | | 52 | | /// <summary> |
| | | 53 | | /// @TODO: check if more conversions are possible: https://docs.sixlabors.com/api/ImageSharp/SixLabors.ImageShar |
| | | 54 | | /// </summary> |
| | | 55 | | /// <param name="cameraData"></param> |
| | | 56 | | /// <returns></returns> |
| | | 57 | | public static async Task<byte[]> ConvertRawBytesToJpeg(ImageByteArray cameraData) |
| | 0 | 58 | | { |
| | | 59 | | |
| | 0 | 60 | | switch (cameraData.Format) |
| | | 61 | | { |
| | | 62 | | case DepthImageFormat.Greyccale48bpp: |
| | 0 | 63 | | return await ConvertRawBytesToJpeg<Rgb48>(cameraData); |
| | | 64 | | case DepthImageFormat.Greyscale8bpp: |
| | 0 | 65 | | return await ConvertRawBytesToJpeg<L8>(cameraData); |
| | | 66 | | case DepthImageFormat.Rgb24bpp: |
| | | 67 | | default: |
| | 0 | 68 | | return await ConvertRawBytesToJpeg<Rgb24>(cameraData); |
| | | 69 | | } |
| | 0 | 70 | | } |
| | | 71 | | |
| | | 72 | | public static async Task<byte[]> ConvertRawBytesToJpeg<T>(ImageByteArray cameraData) where T: unmanaged, IPixel< |
| | 0 | 73 | | { |
| | | 74 | | byte[] sendImage; |
| | | 75 | | |
| | 0 | 76 | | return await Task.Run(() => |
| | 0 | 77 | | { |
| | 0 | 78 | | |
| | 0 | 79 | | using (var ms1 = new MemoryStream(cameraData.ImageData)) |
| | 0 | 80 | | { |
| | 0 | 81 | | using (var image = Image.LoadPixelData<T>(ms1.ToArray(), cameraData.Width, cameraData.Height)) |
| | 0 | 82 | | using (var ms2 = new MemoryStream()) |
| | 0 | 83 | | { |
| | 0 | 84 | | //var file = DepthImageFormatTools.GetFileExtension(cameraData.Format); |
| | 0 | 85 | | //if (file.EndsWith("png")) |
| | 0 | 86 | | // image.SaveAsPng(ms2); |
| | 0 | 87 | | //else |
| | 0 | 88 | | image.SaveAsJpeg(ms2); |
| | 0 | 89 | | |
| | 0 | 90 | | sendImage = ms2.ToArray(); |
| | 0 | 91 | | } |
| | 0 | 92 | | } |
| | 0 | 93 | | |
| | 0 | 94 | | return sendImage; |
| | 0 | 95 | | }); |
| | 0 | 96 | | } |
| | | 97 | | |
| | | 98 | | public static byte[] DecodeImageData(byte[] streamData, string prefixToRemove) |
| | 0 | 99 | | { |
| | 0 | 100 | | var data = Encoding.UTF8.GetString(streamData); |
| | | 101 | | |
| | 0 | 102 | | data = data.Replace(prefixToRemove, ""); |
| | 0 | 103 | | return Convert.FromBase64String(data); |
| | 0 | 104 | | } |
| | | 105 | | |
| | | 106 | | public static byte[] EncodeImageData(byte[] rawData, string prefix) |
| | 0 | 107 | | { |
| | 0 | 108 | | var base64StringResult = Convert.ToBase64String(rawData); |
| | 0 | 109 | | return Encoding.UTF8.GetBytes($"{prefix}{base64StringResult}"); |
| | 0 | 110 | | } |
| | | 111 | | } |
| | | 112 | | } |