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Fix reading MODE 2 sectors in all CD images.

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This commit is contained in:
Natalia Portillo
2020-01-11 22:44:25 +00:00
parent 8400308a98
commit 736323098e
11 changed files with 2341 additions and 1249 deletions
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27
DiscImageChef.DiscImages/CDRDAO/Read.cs
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@@ -42,6 +42,8 @@ using DiscImageChef.CommonTypes.Exceptions;
using DiscImageChef.CommonTypes.Interfaces;
using DiscImageChef.CommonTypes.Structs;
using DiscImageChef.Console;
using DiscImageChef.Decoders.CD;
using Session = DiscImageChef.CommonTypes.Structs.Session;
namespace DiscImageChef.DiscImages
{
@@ -816,6 +818,7 @@ namespace DiscImageChef.DiscImages
uint sectorOffset;
uint sectorSize;
uint sectorSkip;
bool mode2 = false;
switch(dicTrack.Tracktype)
{
@@ -837,6 +840,7 @@ namespace DiscImageChef.DiscImages
case CDRDAO_TRACK_TYPE_MODE2:
case CDRDAO_TRACK_TYPE_MODE2_MIX:
{
mode2 = true;
sectorOffset = 0;
sectorSize = 2336;
sectorSkip = 0;
@@ -858,8 +862,9 @@ namespace DiscImageChef.DiscImages
}
case CDRDAO_TRACK_TYPE_MODE2_RAW:
{
sectorOffset = 16;
sectorSize = 2336;
mode2 = true;
sectorOffset = 0;
sectorSize = 2352;
sectorSkip = 0;
break;
}
@@ -875,7 +880,23 @@ namespace DiscImageChef.DiscImages
br.BaseStream
.Seek((long)dicTrack.Trackfile.Offset + (long)(sectorAddress * (sectorOffset + sectorSize + sectorSkip)),
SeekOrigin.Begin);
if(sectorOffset == 0 && sectorSkip == 0) buffer = br.ReadBytes((int)(sectorSize * length));
if(mode2)
{
var mode2Ms = new MemoryStream((int)(sectorSize * length));
buffer = br.ReadBytes((int)(sectorSize * length));
for(int i = 0; i < length; i++)
{
byte[] sector = new byte[sectorSize];
Array.Copy(buffer, sectorSize * i, sector, 0, sectorSize);
sector = Sector.GetUserDataFromMode2(sector);
mode2Ms.Write(sector, 0, sector.Length);
}
buffer = mode2Ms.ToArray();
}
else if(sectorOffset == 0 && sectorSkip == 0) buffer = br.ReadBytes((int)(sectorSize * length));
else
for(int i = 0; i < length; i++)
{