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using LibHac.Common;
using LibHac.Fs;
using LibHac.Kernel;
using System;
namespace Ryujinx.HLE.Loaders.Executables
{
class KipExecutable : IExecutable
{
public byte[] Program { get; }
public Span<byte> Text => Program.AsSpan((int)TextOffset, (int)TextSize);
public Span<byte> Ro => Program.AsSpan((int)RoOffset, (int)RoSize);
public Span<byte> Data => Program.AsSpan((int)DataOffset, (int)DataSize);
public uint TextOffset { get; }
public uint RoOffset { get; }
public uint DataOffset { get; }
public uint BssOffset { get; }
public uint TextSize { get; }
public uint RoSize { get; }
public uint DataSize { get; }
public uint BssSize { get; }
public uint[] Capabilities { get; }
public bool UsesSecureMemory { get; }
public bool Is64BitAddressSpace { get; }
public bool Is64Bit { get; }
public ulong ProgramId { get; }
public byte Priority { get; }
public int StackSize { get; }
public byte IdealCoreId { get; }
public int Version { get; }
public string Name { get; }
public KipExecutable(in SharedRef<IStorage> inStorage)
{
KipReader reader = new();
reader.Initialize(in inStorage).ThrowIfFailure();
TextOffset = (uint)reader.Segments[0].MemoryOffset;
RoOffset = (uint)reader.Segments[1].MemoryOffset;
DataOffset = (uint)reader.Segments[2].MemoryOffset;
BssOffset = (uint)reader.Segments[3].MemoryOffset;
BssSize = (uint)reader.Segments[3].Size;
StackSize = reader.StackSize;
UsesSecureMemory = reader.UsesSecureMemory;
Is64BitAddressSpace = reader.Is64BitAddressSpace;
Is64Bit = reader.Is64Bit;
ProgramId = reader.ProgramId;
Priority = reader.Priority;
IdealCoreId = reader.IdealCoreId;
Version = reader.Version;
Name = reader.Name.ToString();
Capabilities = new uint[32];
for (int index = 0; index < Capabilities.Length; index++)
{
Capabilities[index] = reader.Capabilities[index];
}
reader.GetSegmentSize(KipReader.SegmentType.Data, out int uncompressedSize).ThrowIfFailure();
Program = new byte[DataOffset + uncompressedSize];
TextSize = DecompressSection(reader, KipReader.SegmentType.Text, TextOffset, Program);
RoSize = DecompressSection(reader, KipReader.SegmentType.Ro, RoOffset, Program);
DataSize = DecompressSection(reader, KipReader.SegmentType.Data, DataOffset, Program);
}
private static uint DecompressSection(KipReader reader, KipReader.SegmentType segmentType, uint offset, byte[] program)
{
reader.GetSegmentSize(segmentType, out int uncompressedSize).ThrowIfFailure();
var span = program.AsSpan((int)offset, uncompressedSize);
reader.ReadSegment(segmentType, span).ThrowIfFailure();
return (uint)uncompressedSize;
}
}
}
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