mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-08-18 22:58:43 +02:00
* Simplify return statements by using ternary expressions * Remove a redundant type conversion * Reduce nesting by inverting "if" statements * Try to improve code readability by using LINQ and inverting "if" statements * Try to improve code readability by using LINQ, using ternary expressions, and inverting "if" statements * Add line breaks to long LINQ * Add line breaks to long LINQ
428 lines
16 KiB
C#
428 lines
16 KiB
C#
using Ryujinx.Common;
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using Ryujinx.Horizon.Common;
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using Ryujinx.Horizon.Sdk.Sf.Cmif;
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using Ryujinx.Horizon.Sdk.Sf.Hipc;
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using System;
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using System.Linq;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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namespace Ryujinx.Horizon.Sdk.Sf
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{
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class HipcCommandProcessor : ServerMessageProcessor
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{
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private readonly CommandArg[] _args;
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private readonly int[] _inOffsets;
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private readonly int[] _outOffsets;
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private readonly PointerAndSize[] _bufferRanges;
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private readonly bool _hasInProcessIdHolder;
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private readonly int _inObjectsCount;
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private readonly int _outObjectsCount;
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private readonly int _inMapAliasBuffersCount;
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private readonly int _outMapAliasBuffersCount;
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private readonly int _inPointerBuffersCount;
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private readonly int _outPointerBuffersCount;
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private readonly int _outFixedSizePointerBuffersCount;
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private readonly int _inMoveHandlesCount;
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private readonly int _inCopyHandlesCount;
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private readonly int _outMoveHandlesCount;
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private readonly int _outCopyHandlesCount;
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public int FunctionArgumentsCount => _args.Length;
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public int InRawDataSize => BitUtils.AlignUp(_inOffsets[^1], sizeof(ushort));
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public int OutRawDataSize => BitUtils.AlignUp(_outOffsets[^1], sizeof(uint));
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private int OutUnfixedSizePointerBuffersCount => _outPointerBuffersCount - _outFixedSizePointerBuffersCount;
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public HipcCommandProcessor(CommandArg[] args)
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{
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_args = args;
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foreach (CommandArg argInfo in args)
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{
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switch (argInfo.Type)
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{
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case CommandArgType.Buffer:
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var flags = argInfo.BufferFlags;
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if (flags.HasFlag(HipcBufferFlags.In))
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{
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if (flags.HasFlag(HipcBufferFlags.AutoSelect))
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{
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_inMapAliasBuffersCount++;
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_inPointerBuffersCount++;
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}
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else if (flags.HasFlag(HipcBufferFlags.MapAlias))
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{
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_inMapAliasBuffersCount++;
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}
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else if (flags.HasFlag(HipcBufferFlags.Pointer))
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{
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_inPointerBuffersCount++;
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}
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}
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else
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{
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bool autoSelect = flags.HasFlag(HipcBufferFlags.AutoSelect);
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if (autoSelect || flags.HasFlag(HipcBufferFlags.Pointer))
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{
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_outPointerBuffersCount++;
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if (flags.HasFlag(HipcBufferFlags.FixedSize))
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{
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_outFixedSizePointerBuffersCount++;
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}
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}
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if (autoSelect || flags.HasFlag(HipcBufferFlags.MapAlias))
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{
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_outMapAliasBuffersCount++;
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}
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}
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break;
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case CommandArgType.InCopyHandle:
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_inCopyHandlesCount++;
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break;
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case CommandArgType.InMoveHandle:
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_inMoveHandlesCount++;
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break;
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case CommandArgType.InObject:
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_inObjectsCount++;
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break;
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case CommandArgType.ProcessId:
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_hasInProcessIdHolder = true;
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break;
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case CommandArgType.OutCopyHandle:
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_outCopyHandlesCount++;
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break;
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case CommandArgType.OutMoveHandle:
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_outMoveHandlesCount++;
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break;
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case CommandArgType.OutObject:
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_outObjectsCount++;
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break;
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}
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}
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_inOffsets = RawDataOffsetCalculator.Calculate(args.Where(x => x.Type == CommandArgType.InArgument).ToArray());
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_outOffsets = RawDataOffsetCalculator.Calculate(args.Where(x => x.Type == CommandArgType.OutArgument).ToArray());
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_bufferRanges = new PointerAndSize[args.Length];
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}
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public int GetInArgOffset(int argIndex)
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{
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return _inOffsets[argIndex];
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}
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public int GetOutArgOffset(int argIndex)
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{
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return _outOffsets[argIndex];
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}
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public PointerAndSize GetBufferRange(int argIndex)
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{
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return _bufferRanges[argIndex];
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}
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public Result ProcessBuffers(ref ServiceDispatchContext context, bool[] isBufferMapAlias, ServerMessageRuntimeMetadata runtimeMetadata)
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{
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bool mapAliasBuffersValid = true;
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ulong pointerBufferTail = context.PointerBuffer.Address;
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ulong pointerBufferHead = pointerBufferTail + context.PointerBuffer.Size;
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int sendMapAliasIndex = 0;
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int recvMapAliasIndex = 0;
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int sendPointerIndex = 0;
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int unfixedRecvPointerIndex = 0;
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for (int i = 0; i < _args.Length; i++)
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{
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if (_args[i].Type != CommandArgType.Buffer)
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{
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continue;
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}
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var flags = _args[i].BufferFlags;
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bool isMapAlias;
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if (flags.HasFlag(HipcBufferFlags.MapAlias))
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{
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isMapAlias = true;
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}
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else if (flags.HasFlag(HipcBufferFlags.Pointer))
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{
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isMapAlias = false;
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}
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else /* if (flags.HasFlag(HipcBufferFlags.HipcAutoSelect)) */
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{
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var descriptor = flags.HasFlag(HipcBufferFlags.In)
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? context.Request.Data.SendBuffers[sendMapAliasIndex]
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: context.Request.Data.ReceiveBuffers[recvMapAliasIndex];
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isMapAlias = descriptor.Address != 0UL;
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}
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isBufferMapAlias[i] = isMapAlias;
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if (isMapAlias)
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{
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var descriptor = flags.HasFlag(HipcBufferFlags.In)
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? context.Request.Data.SendBuffers[sendMapAliasIndex++]
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: context.Request.Data.ReceiveBuffers[recvMapAliasIndex++];
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_bufferRanges[i] = new PointerAndSize(descriptor.Address, descriptor.Size);
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if (!IsMapTransferModeValid(flags, descriptor.Mode))
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{
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mapAliasBuffersValid = false;
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}
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}
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else
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{
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if (flags.HasFlag(HipcBufferFlags.In))
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{
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var descriptor = context.Request.Data.SendStatics[sendPointerIndex++];
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ulong address = descriptor.Address;
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ulong size = descriptor.Size;
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_bufferRanges[i] = new PointerAndSize(address, size);
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if (size != 0)
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{
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pointerBufferTail = Math.Max(pointerBufferTail, address + size);
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}
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}
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else /* if (flags.HasFlag(HipcBufferFlags.Out)) */
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{
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ulong size;
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if (flags.HasFlag(HipcBufferFlags.FixedSize))
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{
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size = _args[i].BufferFixedSize;
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}
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else
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{
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var data = MemoryMarshal.Cast<uint, byte>(context.Request.Data.DataWords);
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var recvPointerSizes = MemoryMarshal.Cast<byte, ushort>(data[runtimeMetadata.UnfixedOutPointerSizeOffset..]);
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size = recvPointerSizes[unfixedRecvPointerIndex++];
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}
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pointerBufferHead = BitUtils.AlignDown(pointerBufferHead - size, 0x10UL);
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_bufferRanges[i] = new PointerAndSize(pointerBufferHead, size);
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}
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}
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}
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if (!mapAliasBuffersValid)
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{
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return HipcResult.InvalidCmifRequest;
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}
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if (_outPointerBuffersCount != 0 && pointerBufferTail > pointerBufferHead)
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{
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return HipcResult.PointerBufferTooSmall;
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}
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return Result.Success;
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}
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private static bool IsMapTransferModeValid(HipcBufferFlags flags, HipcBufferMode mode)
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{
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if (flags.HasFlag(HipcBufferFlags.MapTransferAllowsNonSecure))
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{
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return mode == HipcBufferMode.NonSecure;
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}
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if (flags.HasFlag(HipcBufferFlags.MapTransferAllowsNonDevice))
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{
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return mode == HipcBufferMode.NonDevice;
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}
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return mode == HipcBufferMode.Normal;
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}
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public void SetOutBuffers(HipcMessageData response, bool[] isBufferMapAlias)
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{
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int recvPointerIndex = 0;
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for (int i = 0; i < _args.Length; i++)
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{
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if (_args[i].Type != CommandArgType.Buffer)
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{
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continue;
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}
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var flags = _args[i].BufferFlags;
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if (!flags.HasFlag(HipcBufferFlags.Out))
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{
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continue;
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}
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var buffer = _bufferRanges[i];
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if (flags.HasFlag(HipcBufferFlags.Pointer))
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{
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response.SendStatics[recvPointerIndex] = new HipcStaticDescriptor(buffer.Address, (ushort)buffer.Size, recvPointerIndex);
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}
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else if (flags.HasFlag(HipcBufferFlags.AutoSelect))
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{
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if (!isBufferMapAlias[i])
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{
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response.SendStatics[recvPointerIndex] = new HipcStaticDescriptor(buffer.Address, (ushort)buffer.Size, recvPointerIndex);
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}
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else
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{
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response.SendStatics[recvPointerIndex] = new HipcStaticDescriptor(0UL, 0, recvPointerIndex);
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}
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}
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recvPointerIndex++;
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}
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}
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public override void SetImplementationProcessor(ServerMessageProcessor impl)
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{
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// We don't need to do anything here as this should be always the last processor to be called.
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}
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public override ServerMessageRuntimeMetadata GetRuntimeMetadata()
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{
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return new ServerMessageRuntimeMetadata(
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(ushort)InRawDataSize,
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(ushort)OutRawDataSize,
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(byte)Unsafe.SizeOf<CmifInHeader>(),
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(byte)Unsafe.SizeOf<CmifOutHeader>(),
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(byte)_inObjectsCount,
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(byte)_outObjectsCount);
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}
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public override Result PrepareForProcess(ref ServiceDispatchContext context, ServerMessageRuntimeMetadata runtimeMetadata)
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{
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ref var meta = ref context.Request.Meta;
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bool requestValid = true;
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requestValid &= meta.SendPid == _hasInProcessIdHolder;
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requestValid &= meta.SendStaticsCount == _inPointerBuffersCount;
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requestValid &= meta.SendBuffersCount == _inMapAliasBuffersCount;
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requestValid &= meta.ReceiveBuffersCount == _outMapAliasBuffersCount;
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requestValid &= meta.ExchangeBuffersCount == 0;
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requestValid &= meta.CopyHandlesCount == _inCopyHandlesCount;
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requestValid &= meta.MoveHandlesCount == _inMoveHandlesCount;
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int rawSizeInBytes = meta.DataWordsCount * sizeof(uint);
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int commandRawSize = BitUtils.AlignUp(runtimeMetadata.UnfixedOutPointerSizeOffset + (OutUnfixedSizePointerBuffersCount * sizeof(ushort)), sizeof(uint));
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requestValid &= rawSizeInBytes >= commandRawSize;
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return requestValid ? Result.Success : HipcResult.InvalidCmifRequest;
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}
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public Result GetInObjects(ServerMessageProcessor processor, Span<IServiceObject> objects)
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{
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if (objects.Length == 0)
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{
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return Result.Success;
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}
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ServiceObjectHolder[] inObjects = new ServiceObjectHolder[objects.Length];
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Result result = processor.GetInObjects(inObjects);
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if (result.IsFailure)
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{
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return result;
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}
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int inObjectIndex = 0;
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foreach (CommandArg t in _args)
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{
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if (t.Type != CommandArgType.InObject)
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{
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continue;
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}
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int index = inObjectIndex++;
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var inObject = inObjects[index];
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objects[index] = inObject?.ServiceObject;
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}
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return Result.Success;
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}
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public override Result GetInObjects(Span<ServiceObjectHolder> inObjects)
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{
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return SfResult.NotSupported;
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}
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public override HipcMessageData PrepareForReply(scoped ref ServiceDispatchContext context, out Span<byte> outRawData, ServerMessageRuntimeMetadata runtimeMetadata)
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{
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int rawDataSize = OutRawDataSize + runtimeMetadata.OutHeadersSize;
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var response = HipcMessage.WriteResponse(
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context.OutMessageBuffer,
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_outPointerBuffersCount,
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(BitUtils.AlignUp(rawDataSize, 4) + 0x10) / sizeof(uint),
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_outCopyHandlesCount,
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_outMoveHandlesCount + runtimeMetadata.OutObjectsCount);
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outRawData = MemoryMarshal.Cast<uint, byte>(response.DataWords);
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return response;
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}
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public override void PrepareForErrorReply(scoped ref ServiceDispatchContext context, out Span<byte> outRawData, ServerMessageRuntimeMetadata runtimeMetadata)
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{
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int rawDataSize = runtimeMetadata.OutHeadersSize;
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var response = HipcMessage.WriteResponse(
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context.OutMessageBuffer,
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0,
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(BitUtils.AlignUp(rawDataSize, 4) + 0x10) / sizeof(uint),
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0,
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0);
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outRawData = MemoryMarshal.Cast<uint, byte>(response.DataWords);
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}
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public void SetOutObjects(ref ServiceDispatchContext context, HipcMessageData response, Span<IServiceObject> objects)
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{
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if (objects.Length == 0)
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{
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return;
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}
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ServiceObjectHolder[] outObjects = new ServiceObjectHolder[objects.Length];
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for (int i = 0; i < objects.Length; i++)
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{
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outObjects[i] = objects[i] != null ? new ServiceObjectHolder(objects[i]) : null;
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}
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context.Processor.SetOutObjects(ref context, response, outObjects);
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}
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public override void SetOutObjects(scoped ref ServiceDispatchContext context, HipcMessageData response, Span<ServiceObjectHolder> outObjects)
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{
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for (int index = 0; index < _outObjectsCount; index++)
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{
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SetOutObjectImpl(index, response, context.Manager, outObjects[index]);
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}
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}
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private void SetOutObjectImpl(int index, HipcMessageData response, ServerSessionManager manager, ServiceObjectHolder obj)
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{
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if (obj == null)
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{
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response.MoveHandles[index] = 0;
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return;
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}
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Api.CreateSession(out int serverHandle, out int clientHandle).AbortOnFailure();
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manager.RegisterSession(serverHandle, obj).AbortOnFailure();
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response.MoveHandles[index] = clientHandle;
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}
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}
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} |