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update to framework 4.6.2. Since Windows XP 64 was very rarely used, …
…there's no loss in switching to this if we're going to 64 bit. Add `FrameworkZipWriter` based on the 4.5 framework's built in zip writer. It shaves a decent amount of time off savestate save time, but rolling our own off of DeflateStream would be even faster.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.IO; | ||
| using System.IO.Compression; | ||
| using System.Linq; | ||
| using System.Text; | ||
|
|
||
| namespace BizHawk.Client.Common | ||
| { | ||
| public class FrameworkZipWriter : IZipWriter | ||
| { | ||
| private ZipArchive _archive; | ||
| private readonly CompressionLevel _level; | ||
|
|
||
| public FrameworkZipWriter(string path, int compressionlevel) | ||
| { | ||
| _archive = new ZipArchive(new FileStream(path, FileMode.Create, FileAccess.Write), | ||
| ZipArchiveMode.Create, false); | ||
| if (compressionlevel == 0) | ||
| _level = CompressionLevel.NoCompression; | ||
| else if (compressionlevel < 5) | ||
| _level = CompressionLevel.Fastest; | ||
| else | ||
| _level = CompressionLevel.Optimal; | ||
| } | ||
|
|
||
| public void WriteItem(string name, Action<Stream> callback) | ||
| { | ||
| using (var stream = _archive.CreateEntry(name, _level).Open()) | ||
| { | ||
| callback(stream); | ||
| } | ||
| } | ||
|
|
||
| public void Dispose() | ||
| { | ||
| if (_archive != null) | ||
| { | ||
| _archive.Dispose(); | ||
| _archive = null; | ||
| } | ||
| } | ||
| } | ||
| } |
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