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using Ryujinx.Audio.Renderer.Common;
using Ryujinx.Memory;
using System;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using static Ryujinx.Audio.Renderer.Dsp.State.AuxiliaryBufferHeader;
using CpuAddress = System.UInt64;
namespace Ryujinx.Audio.Renderer.Dsp.Command
{
public class AuxiliaryBufferCommand : ICommand
{
public bool Enabled { get; set; }
public int NodeId { get; }
public CommandType CommandType => CommandType.AuxiliaryBuffer;
public uint EstimatedProcessingTime { get; set; }
public uint InputBufferIndex { get; }
public uint OutputBufferIndex { get; }
public AuxiliaryBufferAddresses BufferInfo { get; }
public CpuAddress InputBuffer { get; }
public CpuAddress OutputBuffer { get; }
public uint CountMax { get; }
public uint UpdateCount { get; }
public uint WriteOffset { get; }
public bool IsEffectEnabled { get; }
public AuxiliaryBufferCommand(
uint bufferOffset,
byte inputBufferOffset,
byte outputBufferOffset,
ref AuxiliaryBufferAddresses sendBufferInfo,
bool isEnabled,
uint countMax,
CpuAddress outputBuffer,
CpuAddress inputBuffer,
uint updateCount,
uint writeOffset,
int nodeId)
{
Enabled = true;
NodeId = nodeId;
InputBufferIndex = bufferOffset + inputBufferOffset;
OutputBufferIndex = bufferOffset + outputBufferOffset;
BufferInfo = sendBufferInfo;
InputBuffer = inputBuffer;
OutputBuffer = outputBuffer;
CountMax = countMax;
UpdateCount = updateCount;
WriteOffset = writeOffset;
IsEffectEnabled = isEnabled;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private uint Read(IVirtualMemoryManager memoryManager, ulong bufferAddress, uint countMax, Span<int> outBuffer, uint count, uint readOffset, uint updateCount)
{
if (countMax == 0 || bufferAddress == 0)
{
return 0;
}
uint targetReadOffset = readOffset + AuxiliaryBufferInfo.GetReadOffset(memoryManager, BufferInfo.ReturnBufferInfo);
if (targetReadOffset > countMax)
{
return 0;
}
uint remaining = count;
uint outBufferOffset = 0;
while (remaining != 0)
{
uint countToWrite = Math.Min(countMax - targetReadOffset, remaining);
memoryManager.Read(bufferAddress + targetReadOffset * sizeof(int), MemoryMarshal.Cast<int, byte>(outBuffer.Slice((int)outBufferOffset, (int)countToWrite)));
targetReadOffset = (targetReadOffset + countToWrite) % countMax;
remaining -= countToWrite;
outBufferOffset += countToWrite;
}
if (updateCount != 0)
{
uint newReadOffset = (AuxiliaryBufferInfo.GetReadOffset(memoryManager, BufferInfo.ReturnBufferInfo) + updateCount) % countMax;
AuxiliaryBufferInfo.SetReadOffset(memoryManager, BufferInfo.ReturnBufferInfo, newReadOffset);
}
return count;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private uint Write(IVirtualMemoryManager memoryManager, ulong outBufferAddress, uint countMax, ReadOnlySpan<int> buffer, uint count, uint writeOffset, uint updateCount)
{
if (countMax == 0 || outBufferAddress == 0)
{
return 0;
}
uint targetWriteOffset = writeOffset + AuxiliaryBufferInfo.GetWriteOffset(memoryManager, BufferInfo.SendBufferInfo);
if (targetWriteOffset > countMax)
{
return 0;
}
uint remaining = count;
uint inBufferOffset = 0;
while (remaining != 0)
{
uint countToWrite = Math.Min(countMax - targetWriteOffset, remaining);
memoryManager.Write(outBufferAddress + targetWriteOffset * sizeof(int), MemoryMarshal.Cast<int, byte>(buffer.Slice((int)inBufferOffset, (int)countToWrite)));
targetWriteOffset = (targetWriteOffset + countToWrite) % countMax;
remaining -= countToWrite;
inBufferOffset += countToWrite;
}
if (updateCount != 0)
{
uint newWriteOffset = (AuxiliaryBufferInfo.GetWriteOffset(memoryManager, BufferInfo.SendBufferInfo) + updateCount) % countMax;
AuxiliaryBufferInfo.SetWriteOffset(memoryManager, BufferInfo.SendBufferInfo, newWriteOffset);
}
return count;
}
public void Process(CommandList context)
{
Span<float> inputBuffer = context.GetBuffer((int)InputBufferIndex);
Span<float> outputBuffer = context.GetBuffer((int)OutputBufferIndex);
if (IsEffectEnabled)
{
Span<int> inputBufferInt = MemoryMarshal.Cast<float, int>(inputBuffer);
Span<int> outputBufferInt = MemoryMarshal.Cast<float, int>(outputBuffer);
// Convert input data to the target format for user (int)
DataSourceHelper.ToInt(inputBufferInt, inputBuffer, inputBuffer.Length);
// Send the input to the user
Write(context.MemoryManager, OutputBuffer, CountMax, inputBufferInt, context.SampleCount, WriteOffset, UpdateCount);
// Convert back to float just in case it's reused
DataSourceHelper.ToFloat(inputBuffer, inputBufferInt, inputBuffer.Length);
// Retrieve the input from user
uint readResult = Read(context.MemoryManager, InputBuffer, CountMax, outputBufferInt, context.SampleCount, WriteOffset, UpdateCount);
// Convert the outputBuffer back to the target format of the renderer (float)
DataSourceHelper.ToFloat(outputBuffer, outputBufferInt, outputBuffer.Length);
if (readResult != context.SampleCount)
{
outputBuffer[(int)readResult..(int)context.SampleCount].Clear();
}
}
else
{
AuxiliaryBufferInfo.Reset(context.MemoryManager, BufferInfo.SendBufferInfo);
AuxiliaryBufferInfo.Reset(context.MemoryManager, BufferInfo.ReturnBufferInfo);
if (InputBufferIndex != OutputBufferIndex)
{
inputBuffer.CopyTo(outputBuffer);
}
}
}
}
}
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