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https://github.com/aaru-dps/Aaru.git
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Move CD user data trimming to a separate file.
This commit is contained in:
210
DiscImageChef.Core/Devices/Dumping/CompactDisc/Trim.cs
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210
DiscImageChef.Core/Devices/Dumping/CompactDisc/Trim.cs
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// /***************************************************************************
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// The Disc Image Chef
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// ----------------------------------------------------------------------------
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//
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// Filename : CompactDisc.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Core algorithms.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Dumps CDs and DDCDs.
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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// ----------------------------------------------------------------------------
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// Copyright © 2011-2019 Natalia Portillo
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// ****************************************************************************/
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using System;
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using DiscImageChef.CommonTypes.Enums;
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using DiscImageChef.CommonTypes.Extents;
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using DiscImageChef.Devices;
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using Schemas;
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// ReSharper disable JoinDeclarationAndInitializer
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// ReSharper disable InlineOutVariableDeclaration
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// ReSharper disable TooWideLocalVariableScope
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namespace DiscImageChef.Core.Devices.Dumping
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{
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partial class Dump
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{
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void TrimCdUserData(ExtentsULong audioExtents, uint blockSize, DumpHardwareType currentTry,
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ExtentsULong extents, bool newTrim, int offsetBytes, bool read6, bool read10, bool read12,
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bool read16, bool readcd, int sectorsForOffset, uint subSize,
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MmcSubchannel supportedSubchannel, bool supportsLongSectors, ref double totalDuration)
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{
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DateTime start;
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DateTime end;
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bool sense = true; // Sense indicator
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byte[] cmdBuf = null; // Data buffer
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double cmdDuration = 0; // Command execution time
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const uint sectorSize = 2352; // Full sector size
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byte[] tmpBuf; // Temporary buffer
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if(_resume.BadBlocks.Count <= 0 ||
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_aborted ||
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_notrim ||
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!newTrim)
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return;
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start = DateTime.UtcNow;
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UpdateStatus?.Invoke("Trimming bad sectors");
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_dumpLog.WriteLine("Trimming bad sectors");
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ulong[] tmpArray = _resume.BadBlocks.ToArray();
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InitProgress?.Invoke();
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foreach(ulong badSector in tmpArray)
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{
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if(_aborted)
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{
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currentTry.Extents = ExtentsConverter.ToMetadata(extents);
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UpdateStatus?.Invoke("Aborted!");
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_dumpLog.WriteLine("Aborted!");
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break;
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}
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PulseProgress?.Invoke($"Trimming sector {badSector}");
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byte sectorsToTrim = 1;
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uint badSectorToRead = (uint)badSector;
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if(_fixOffset &&
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audioExtents.Contains(badSector) &&
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offsetBytes != 0)
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{
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if(offsetBytes > 0)
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{
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badSectorToRead -= (uint)sectorsForOffset;
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}
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sectorsToTrim = (byte)(sectorsForOffset + 1);
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}
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if(readcd)
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sense = _dev.ReadCd(out cmdBuf, out _, badSectorToRead, blockSize, sectorsToTrim,
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MmcSectorTypes.AllTypes, false, false, true, MmcHeaderCodes.AllHeaders, true,
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true, MmcErrorField.None, supportedSubchannel, _dev.Timeout, out cmdDuration);
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else if(read16)
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sense = _dev.Read16(out cmdBuf, out _, 0, false, true, false, badSectorToRead, blockSize, 0,
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sectorsToTrim, false, _dev.Timeout, out cmdDuration);
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else if(read12)
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sense = _dev.Read12(out cmdBuf, out _, 0, false, true, false, false, badSectorToRead, blockSize, 0,
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sectorsToTrim, false, _dev.Timeout, out cmdDuration);
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else if(read10)
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sense = _dev.Read10(out cmdBuf, out _, 0, false, true, false, false, badSectorToRead, blockSize, 0,
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sectorsToTrim, _dev.Timeout, out cmdDuration);
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else if(read6)
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sense = _dev.Read6(out cmdBuf, out _, badSectorToRead, blockSize, sectorsToTrim, _dev.Timeout,
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out cmdDuration);
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totalDuration += cmdDuration;
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if(sense || _dev.Error)
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continue;
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if(!sense &&
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!_dev.Error)
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{
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_resume.BadBlocks.Remove(badSector);
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extents.Add(badSector);
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}
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// Because one block has been partially used to fix the offset
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if(_fixOffset &&
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audioExtents.Contains(badSector) &&
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offsetBytes != 0)
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{
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int offsetFix = offsetBytes < 0 ? (int)(sectorSize - (offsetBytes * -1)) : offsetBytes;
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if(supportedSubchannel != MmcSubchannel.None)
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{
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// De-interleave subchannel
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byte[] data = new byte[sectorSize * sectorsToTrim];
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byte[] sub = new byte[subSize * sectorsToTrim];
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for(int b = 0; b < sectorsToTrim; b++)
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{
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Array.Copy(cmdBuf, (int)(0 + (b * blockSize)), data, sectorSize * b, sectorSize);
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Array.Copy(cmdBuf, (int)(sectorSize + (b * blockSize)), sub, subSize * b, subSize);
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}
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tmpBuf = new byte[sectorSize * (sectorsToTrim - sectorsForOffset)];
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Array.Copy(data, offsetFix, tmpBuf, 0, tmpBuf.Length);
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data = tmpBuf;
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// Re-interleave subchannel
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cmdBuf = new byte[blockSize * sectorsToTrim];
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for(int b = 0; b < sectorsToTrim; b++)
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{
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Array.Copy(data, sectorSize * b, cmdBuf, (int)(0 + (b * blockSize)), sectorSize);
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Array.Copy(sub, subSize * b, cmdBuf, (int)(sectorSize + (b * blockSize)), subSize);
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}
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}
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else
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{
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tmpBuf = new byte[blockSize * (sectorsToTrim - sectorsForOffset)];
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Array.Copy(cmdBuf, offsetFix, tmpBuf, 0, tmpBuf.Length);
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cmdBuf = tmpBuf;
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}
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}
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if(supportedSubchannel != MmcSubchannel.None)
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{
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byte[] data = new byte[sectorSize];
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byte[] sub = new byte[subSize];
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Array.Copy(cmdBuf, 0, data, 0, sectorSize);
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Array.Copy(cmdBuf, sectorSize, sub, 0, subSize);
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_outputPlugin.WriteSectorLong(data, badSector);
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_outputPlugin.WriteSectorTag(sub, badSector, SectorTagType.CdSectorSubchannel);
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}
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else
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{
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if(supportsLongSectors)
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{
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_outputPlugin.WriteSectorLong(cmdBuf, badSector);
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}
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else
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{
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if(cmdBuf.Length % sectorSize == 0)
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{
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byte[] data = new byte[2048];
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Array.Copy(cmdBuf, 16, data, 0, 2048);
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_outputPlugin.WriteSector(data, badSector);
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}
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else
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{
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_outputPlugin.WriteSectorLong(cmdBuf, badSector);
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}
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}
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}
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}
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EndProgress?.Invoke();
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end = DateTime.UtcNow;
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UpdateStatus?.Invoke($"Trimming finished in {(end - start).TotalSeconds} seconds.");
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_dumpLog.WriteLine("Trimming finished in {0} seconds.", (end - start).TotalSeconds);
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}
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}
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}
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