37 lines
1015 B
C#
37 lines
1015 B
C#
using System;
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using BizHawk.Common.BufferExtensions;
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namespace BizHawk.Emulation.DiscSystem
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{
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public class OldHasher
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{
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public OldHasher(Disc disc)
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{
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this.disc = disc;
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}
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Disc disc;
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// gets an identifying hash. hashes the first 512 sectors of
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// the first data track on the disc.
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//TODO - this is a very platform-specific thing. hashing the TOC may be faster and be just as effective. so, rename it appropriately
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public string GetHash()
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{
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byte[] buffer = new byte[512 * 2352];
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DiscSectorReader dsr = new DiscSectorReader(disc);
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foreach (var track in disc.Structure.Sessions[0].Tracks)
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{
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if (track.TrackType == DiscStructure.ETrackType.Audio)
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continue;
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int lba_len = Math.Min(track.LengthInSectors, 512);
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for (int s = 0; s < 512 && s < track.LengthInSectors; s++)
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dsr.ReadLBA_2352(track.Indexes[1].LBA + s, buffer, s * 2352);
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return buffer.HashMD5(0, lba_len * 2352);
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}
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return "no data track found";
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}
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}
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} |