51 lines
1.6 KiB
C#
51 lines
1.6 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.IO;
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using NLog;
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namespace Resources
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{
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public class Writer
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{
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private const int OffsetTableItemLength = 4;
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private static readonly Logger Logger = LogManager.GetCurrentClassLogger();
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private readonly Stream _stream;
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public Writer(Stream stream)
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{
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_stream = stream;
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}
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public void Write(List<Bitmap> images)
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{
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var offsetsTable = new byte[images.Count * OffsetTableItemLength];
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var encodedImages = new MemoryStream[images.Count];
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var offset = (uint) 0;
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for (var i = 0; i < images.Count; i++)
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{
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Logger.Trace("Image {0} offset is {1}...", i, offset);
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var offsetBytes = BitConverter.GetBytes(offset);
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offsetBytes.CopyTo(offsetsTable, i * OffsetTableItemLength);
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var encodedImage = new MemoryStream();
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Logger.Debug("Encoding image {0}...", i);
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new Image.Writer(encodedImage).Write(images[i]);
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offset += (uint) encodedImage.Length;
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encodedImages[i] = encodedImage;
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}
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Logger.Trace("Writing images offsets table");
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_stream.Write(offsetsTable, 0, offsetsTable.Length);
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Logger.Debug("Writing images");
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foreach (var encodedImage in encodedImages)
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{
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encodedImage.Seek(0, SeekOrigin.Begin);
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encodedImage.CopyTo(_stream);
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}
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}
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}
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} |