Generate PIC for hybrid discs using layerbreak
This commit is contained in:
Deterous
+85
-55
@@ -144,58 +144,86 @@ namespace LibIRD
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/// Generates the PIC data for a given ISO size in bytes
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/// </summary>
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/// <param name="size">Total ISO size in number of bytes</param>
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/// <param name="layerbreak">Layer break value, byte at which disc layers are split across</param>
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/// <param name="layer_break">Layer break value, byte at which disc layers are split across</param>
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/// <param name="exactIRD">True to generate a PIC in 3k3y style (0x03 at 115th byte for BD-50 discs)</param>
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/// <exception cref="ArgumentException"></exception>
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private static byte[] GeneratePIC(long size, long layerbreak = BDLayerSize, bool exactIRD = false)
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private static byte[] GeneratePIC(long size, long? layerbreak = null, bool exactIRD = false)
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{
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// Validate size
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if (size == 0 || (size % SectorSize) != 0)
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if (size <= 0 || (size % SectorSize) != 0)
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throw new ArgumentException("ISO Size in bytes must be a positive integer multiple of 2048", nameof(size));
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// Validate layerbreak
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if (layerbreak == 0 || (layerbreak != BDLayerSize && layerbreak >= size))
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throw new ArgumentException("Layerbreak in bytes must be a positive integer less than the ISO Size", nameof(size));
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if (layerbreak != null)
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{
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if (layerbreak <= 0 || (layerbreak >= size))
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throw new ArgumentException("Layerbreak in bytes must be a positive integer less than the ISO Size", nameof(size));
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if (layerbreak >= 2 * BDLayerSize || layerbreak % SectorSize != 0)
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throw new ArgumentException("Unexpected layerbreak value", nameof(size));
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}
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// If layerbreak value was not set, assume it is a non-hybrid disc with default layerbreak
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long layer_break = layerbreak ?? BDLayerSize;
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// TODO: Generate correct PICs for Hybrid PS3 discs (BD-50 with layerbreak value other than 12219392)
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// Generate the PIC based on the size and layerbreak of the ISO
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byte[] pic;
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if (size > BDLayerSize) // if BD-50
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{
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// num_sectors + layer_sector_end (0x00100000) + sectors_between_layers (0x01358C00 - 0x00CA73FE) - 3
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byte[] total_sectors = BitConverter.GetBytes((uint)(size / SectorSize + 8067071));
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// Layer 0 start sector = 0x01000000
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long l0_start_sector = 1048576;
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// Layer 0 end sector = start sector + layerbreak - 2
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long l0_end_sector = layer_break + l0_start_sector - 2;
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// Convert end sector location to hex values for PIC
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byte[] l0es = [(byte)((l0_end_sector >> 24) & 0xFF),
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(byte)((l0_end_sector >> 16) & 0xFF),
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(byte)((l0_end_sector >> 8) & 0xFF),
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(byte)((l0_end_sector >> 0) & 0xFF)];
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// Initial portion of PIC (24 bytes)
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pic = [
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// [4098 bytes] [2x 0x00] ["DI"] [v1] [10units] [DI num]
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0x10, 0x02, 0x00, 0x00, 0x44, 0x49, 0x01, 0x10, 0x00, 0x00, 0x20, 0x00,
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// ["BDR"] [2 layers]
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0x42, 0x44, 0x4F, 0x01, 0x21, 0x01, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
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// Total sectors used on disc (4 bytes)
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total_sectors[3], total_sectors[2], total_sectors[1], total_sectors[0],
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// 1st Layer sector start location (4 bytes)
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0x00, 0x10, 0x00, 0x00,
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// 1st Layer sector end location (4 bytes)
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0x00, 0xCA, 0x73, 0xFE,
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// 32 bytes of zeros
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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// Initial portion of PIC again, for 2nd layer
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// ["DI"] [v1] [11unit][DI num]
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0x44, 0x49, 0x01, 0x11, 0x00, 0x01, 0x20, 0x00,
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// ["BDR"] [2 layers]
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0x42, 0x44, 0x4F, 0x01, 0x21, 0x01, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
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// Total sectors used on disc
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total_sectors[3], total_sectors[2], total_sectors[1], total_sectors[0],
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// 2nd Layer sector start location
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0x01, 0x35, 0x8C, 0x00,
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// 2nd Layer sector end location
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0x01, 0xEF, 0xFF, 0xFE,
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// Remaining 32 bytes are zeroes
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ];
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// 3k3y style: 0x03 at last byte
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if (exactIRD)
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pic[114] = 0x03;
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// Layer 1 start sector = end of disc (0x01EFFFFE) - layerbreak + 2
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long l1_start_sector = 32505854 - layer_break + 2;
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// Convert start of start sector location to hex values for PIC
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byte[] l1ss = [(byte)((l1_start_sector >> 24) & 0xFF),
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(byte)((l1_start_sector >> 16) & 0xFF),
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(byte)((l1_start_sector >> 8) & 0xFF),
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(byte)((l1_start_sector >> 0) & 0xFF)];
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// Total sectors used = num_sectors + Layer 0 start + sectors_between_layers (usually 0x01358C00 - 0x00CA73FE - 3)
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long total_sectors = (size / SectorSize) + l0_start_sector + (l1_start_sector - l0_end_sector - 3);
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byte[] ts = BitConverter.GetBytes((uint) total_sectors);
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}
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// Define the PIC
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pic = [
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// Initial portion of PIC (24 bytes)
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// [4098 bytes] [2x 0x00] ["DI"] [v1] [10units] [DI num]
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0x10, 0x02, 0x00, 0x00, 0x44, 0x49, 0x01, 0x10, 0x00, 0x00, 0x20, 0x00,
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// ["BDR"] [2 layers]
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0x42, 0x44, 0x4F, 0x01, 0x21, 0x01, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
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// Total sectors used on disc (4 bytes)
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ts[3], ts[2], ts[1], ts[0],
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// 1st Layer sector start location (4 bytes)
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0x00, 0x10, 0x00, 0x00,
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// 1st Layer sector end location (4 bytes), 0x00CA73FE for default BD layerbreak of 12219392
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l0es[0], l0es[1], l0es[2], l0es[3],
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// 32 bytes of zeros
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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// Initial portion of PIC again, for 2nd layer
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// ["DI"] [v1] [11unit][DI num]
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0x44, 0x49, 0x01, 0x11, 0x00, 0x01, 0x20, 0x00,
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// ["BDR"] [2 layers]
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0x42, 0x44, 0x4F, 0x01, 0x21, 0x01, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
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// Total sectors used on disc
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ts[3], ts[2], ts[1], ts[0],
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// 2nd Layer sector start location, 0x01358C00 for default BD layerbreak of 12219392
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l1ss[0], l1ss[1], l1ss[2], l1ss[3],
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// 2nd Layer sector end location
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0x01, 0xEF, 0xFF, 0xFE,
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// Remaining 32 bytes are zeroes
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ];
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// 3k3y style: 0x03 at last byte
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if (exactIRD)
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pic[114] = 0x03;
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}
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else // if BD-25
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{
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// Total sectors used on disc: num_sectors + layer_sector_end (0x00100000) - 1
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@@ -203,21 +231,23 @@ namespace LibIRD
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// Layer sector end location: num_sectors + layer_sector_end (0x00100000) - 2
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byte[] end_sector = BitConverter.GetBytes((uint)(size / SectorSize + 1048574));
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// Initial portion of PIC (24 bytes)
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pic = [ 0x10, 0x02, 0x00, 0x00, 0x44, 0x49, 0x01, 0x08, 0x00, 0x00, 0x20, 0x00,
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0x42, 0x44, 0x4F, 0x01, 0x11, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
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// Total sectors used on disc (4 bytes)
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total_sectors[3], total_sectors[2], total_sectors[1], total_sectors[0],
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// Layer sector start location (4 bytes)
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0x00, 0x10, 0x00, 0x00,
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// Layer sector end location (4 bytes)
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end_sector[3], end_sector[2], end_sector[1], end_sector[0],
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// Remaining 79 bytes are zeroes
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ];
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// Define the PIC
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pic = [
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// Initial portion of PIC (24 bytes)
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0x10, 0x02, 0x00, 0x00, 0x44, 0x49, 0x01, 0x08, 0x00, 0x00, 0x20, 0x00,
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0x42, 0x44, 0x4F, 0x01, 0x11, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
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// Total sectors used on disc (4 bytes)
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total_sectors[3], total_sectors[2], total_sectors[1], total_sectors[0],
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// Layer sector start location (4 bytes)
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0x00, 0x10, 0x00, 0x00,
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// Layer sector end location (4 bytes)
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end_sector[3], end_sector[2], end_sector[1], end_sector[0],
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// Remaining 79 bytes are zeroes
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ];
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}
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return pic;
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