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Deterous
2024-02-05 09:20:59 +09:00
parent 23f8dce272
commit bc3df52e75
6 changed files with 63 additions and 54 deletions
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LibIRD/ReIRD.cs
+39 -40
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@@ -2,7 +2,6 @@
using System;
using System.IO;
using System.IO.Hashing;
using System.Security;
namespace LibIRD
{
@@ -152,62 +151,62 @@ namespace LibIRD
if (size > BDLayerSize) // if BD-50
{
// Layer 0 start sector = 0x01000000
long l0_start_sector = 1048576;
// Layer 0 end sector = start sector + layerbreak - 2
long l0_end_sector = ((long)layerbreak / SectorSize) + l0_start_sector - 2;
// Convert end sector location to hex values for PIC
byte[] l0es = [(byte)((l0_end_sector >> 24) & 0xFF),
(byte)((l0_end_sector >> 16) & 0xFF),
(byte)((l0_end_sector >> 8) & 0xFF),
(byte)((l0_end_sector >> 0) & 0xFF)];
long l0_start_sector = 1048576;
// Layer 0 end sector = start sector + layerbreak - 2
long l0_end_sector = ((long)layerbreak / SectorSize) + l0_start_sector - 2;
// Convert end sector location to hex values for PIC
byte[] l0es = [(byte)((l0_end_sector >> 24) & 0xFF),
(byte)((l0_end_sector >> 16) & 0xFF),
(byte)((l0_end_sector >> 8) & 0xFF),
(byte)((l0_end_sector >> 0) & 0xFF)];
// Layer 1 start sector = end of disc (0x01EFFFFE) - layerbreak + 2
long l1_start_sector = 32505854 - ((long)layerbreak! / SectorSize) + 2;
// Convert start of start sector location to hex values for PIC
byte[] l1ss = [(byte)((l1_start_sector >> 24) & 0xFF),
(byte)((l1_start_sector >> 16) & 0xFF),
(byte)((l1_start_sector >> 8) & 0xFF),
(byte)((l1_start_sector >> 0) & 0xFF)];
// Total sectors used = num_sectors + Layer 0 start + sectors_between_layers (usually 0x01358C00 - 0x00CA73FE - 3)
long total_sectors = (size / SectorSize) + l0_start_sector + (l1_start_sector - l0_end_sector - 3);
byte[] ts = BitConverter.GetBytes((uint) total_sectors);
// Convert start of start sector location to hex values for PIC
byte[] l1ss = [(byte)((l1_start_sector >> 24) & 0xFF),
(byte)((l1_start_sector >> 16) & 0xFF),
(byte)((l1_start_sector >> 8) & 0xFF),
(byte)((l1_start_sector >> 0) & 0xFF)];
// Define the PIC
pic = [
// Initial portion of PIC (24 bytes)
// [4098 bytes] [2x 0x00] ["DI"] [v1] [10units] [DI num]
// Total sectors used = num_sectors + Layer 0 start + sectors_between_layers (usually 0x01358C00 - 0x00CA73FE - 3)
long total_sectors = (size / SectorSize) + l0_start_sector + (l1_start_sector - l0_end_sector - 3);
byte[] ts = BitConverter.GetBytes((uint)total_sectors);
// Define the PIC
pic = [
// Initial portion of PIC (24 bytes)
// [4098 bytes] [2x 0x00] ["DI"] [v1] [10units] [DI num]
0x10, 0x02, 0x00, 0x00, 0x44, 0x49, 0x01, 0x10, 0x00, 0x00, 0x20, 0x00,
// ["BDR"] [2 layers]
// ["BDR"] [2 layers]
0x42, 0x44, 0x4F, 0x01, 0x21, 0x01, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
// Total sectors used on disc (4 bytes)
// Total sectors used on disc (4 bytes)
ts[3], ts[2], ts[1], ts[0],
// 1st Layer sector start location (4 bytes)
// 1st Layer sector start location (4 bytes)
0x00, 0x10, 0x00, 0x00,
// 1st Layer sector end location (4 bytes), 0x00CA73FE for default BD layerbreak of 12219392
// 1st Layer sector end location (4 bytes), 0x00CA73FE for default BD layerbreak of 12219392
l0es[0], l0es[1], l0es[2], l0es[3],
// 32 bytes of zeros
// 32 bytes of zeros
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
// Initial portion of PIC again, for 2nd layer
// ["DI"] [v1] [11unit][DI num]
// Initial portion of PIC again, for 2nd layer
// ["DI"] [v1] [11unit][DI num]
0x44, 0x49, 0x01, 0x11, 0x00, 0x01, 0x20, 0x00,
// ["BDR"] [2 layers]
// ["BDR"] [2 layers]
0x42, 0x44, 0x4F, 0x01, 0x21, 0x01, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
// Total sectors used on disc
// Total sectors used on disc
ts[3], ts[2], ts[1], ts[0],
// 2nd Layer sector start location, 0x01358C00 for default BD layerbreak of 12219392
// 2nd Layer sector start location, 0x01358C00 for default BD layerbreak of 12219392
l1ss[0], l1ss[1], l1ss[2], l1ss[3],
// 2nd Layer sector end location
// 2nd Layer sector end location
0x01, 0xEF, 0xFF, 0xFE,
// Remaining 32 bytes are zeroes
// Remaining 32 bytes are zeroes
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ];
// 3k3y style: 0x03 at last byte
if (exactIRD)
pic[114] = 0x03;
// 3k3y style: 0x03 at last byte
if (exactIRD)
pic[114] = 0x03;
}
}
else // if BD-25
{
// Total sectors used on disc: num_sectors + layer_sector_end (0x00100000) - 1
@@ -233,7 +232,7 @@ namespace LibIRD
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ];
}
return pic;
}