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Generate region hashes

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This commit is contained in:
Deterous
2023-11-03 00:20:29 +13:00
parent 78f7960b1a
commit 641e915a22
2 changed files with 168 additions and 79 deletions
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LibIRD/ReIRD.cs
+4 -4
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@@ -90,7 +90,7 @@ namespace LibIRD
private void GeneratePIC(long size, long layerbreak = BDLayerSize, bool exactIRD = false)
{
// Validate size
if (size == 0 || (size % 2048) != 0)
if (size == 0 || (size % SectorSize) != 0)
throw new ArgumentException("ISO Size in bytes must be a positive integer multiple of 2048", nameof(size));
// Validate layerbreak
if (layerbreak == 0 || (layerbreak != BDLayerSize && layerbreak >= size))
@@ -100,7 +100,7 @@ namespace LibIRD
if (size > BDLayerSize) // if BD-50
{
// num_sectors + layer_sector_end (0x00100000) + sectors_between_layers (0x01358C00 - 0x00CA73FE) - 3
byte[] total_sectors = BitConverter.GetBytes((uint)(size / 2048 + 8067071));
byte[] total_sectors = BitConverter.GetBytes((uint)(size / SectorSize + 8067071));
// Initial portion of PIC (24 bytes)
PIC = new byte[]{
@@ -138,9 +138,9 @@ namespace LibIRD
else // if BD-25
{
// Total sectors used on disc: num_sectors + layer_sector_end (0x00100000) - 1
byte[] total_sectors = BitConverter.GetBytes((uint)(size / 2048 + 1048575));
byte[] total_sectors = BitConverter.GetBytes((uint)(size / SectorSize + 1048575));
// Layer sector end location: num_sectors + layer_sector_end (0x00100000) - 2
byte[] end_sector = BitConverter.GetBytes((uint)(size / 2048 + 1048574));
byte[] end_sector = BitConverter.GetBytes((uint)(size / SectorSize + 1048574));
// Initial portion of PIC (24 bytes)
PIC = new byte[]{ 0x10, 0x02, 0x00, 0x00, 0x44, 0x49, 0x01, 0x08, 0x00, 0x00, 0x20, 0x00,