47 lines
1.2 KiB
C#
47 lines
1.2 KiB
C#
using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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namespace OpenRA.FileFormats.Graphics
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{
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// format80-only SHP writer
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public static class ShpWriter
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{
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public static void Write(Stream s, int width, int height, IEnumerable<byte[]> frames)
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{
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var compressedFrames = frames.Select(f => Format80.Encode(f)).ToArray();
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// note: end-of-file and all-zeroes headers
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var dataOffset = 14 + (compressedFrames.Length + 2) * ImageHeader.SizeOnDisk;
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using (var bw = new BinaryWriter(s))
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{
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bw.Write((ushort)compressedFrames.Length);
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bw.Write((ushort)0); // unused
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bw.Write((ushort)0); // unused
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bw.Write((ushort)width);
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bw.Write((ushort)height);
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bw.Write((uint)0); // unused
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foreach (var f in compressedFrames)
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{
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var ih = new ImageHeader { Format = Format.Format80, Offset = (uint)dataOffset };
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dataOffset += f.Length;
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ih.WriteTo(bw);
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}
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var eof = new ImageHeader { Format = Format.Format80, Offset = (uint)dataOffset };
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eof.WriteTo(bw);
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var allZeroes = new ImageHeader { };
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allZeroes.WriteTo(bw);
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foreach (var f in compressedFrames)
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bw.Write(f);
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}
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}
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}
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}
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