mirror of
https://github.com/Ryujinx/Ryujinx.git
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205 lines
8.5 KiB
C#
205 lines
8.5 KiB
C#
using Ryujinx.Common;
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using Ryujinx.HLE.HOS.Services.Audio.HardwareOpusDecoderManager;
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using Ryujinx.HLE.HOS.Services.Audio.Types;
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using System.Runtime.InteropServices;
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namespace Ryujinx.HLE.HOS.Services.Audio
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{
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[Service("hwopus")]
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class IHardwareOpusDecoderManager : IpcService
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{
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public IHardwareOpusDecoderManager(ServiceCtx context) { }
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[CommandCmif(0)]
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// Initialize(bytes<8, 4>, u32, handle<copy>) -> object<nn::codec::detail::IHardwareOpusDecoder>
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public ResultCode Initialize(ServiceCtx context)
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{
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int sampleRate = context.RequestData.ReadInt32();
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int channelsCount = context.RequestData.ReadInt32();
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MakeObject(context, new IHardwareOpusDecoder(sampleRate, channelsCount, OpusDecoderFlags.None));
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// Close transfer memory immediately as we don't use it.
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context.Device.System.KernelContext.Syscall.CloseHandle(context.Request.HandleDesc.ToCopy[0]);
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return ResultCode.Success;
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}
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[CommandCmif(1)]
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// GetWorkBufferSize(bytes<8, 4>) -> u32
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public ResultCode GetWorkBufferSize(ServiceCtx context)
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{
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int sampleRate = context.RequestData.ReadInt32();
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int channelsCount = context.RequestData.ReadInt32();
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int opusDecoderSize = GetOpusDecoderSize(channelsCount);
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int frameSize = BitUtils.AlignUp(channelsCount * 1920 / (48000 / sampleRate), 64);
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int totalSize = opusDecoderSize + 1536 + frameSize;
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context.ResponseData.Write(totalSize);
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return ResultCode.Success;
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}
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[CommandCmif(2)] // 3.0.0+
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// InitializeForMultiStream(u32, handle<copy>, buffer<unknown<0x110>, 0x19>) -> object<nn::codec::detail::IHardwareOpusDecoder>
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public ResultCode InitializeForMultiStream(ServiceCtx context)
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{
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ulong parametersAddress = context.Request.PtrBuff[0].Position;
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OpusMultiStreamParameters parameters = context.Memory.Read<OpusMultiStreamParameters>(parametersAddress);
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MakeObject(context, new IHardwareOpusDecoder(parameters.SampleRate, parameters.ChannelsCount, OpusDecoderFlags.None));
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// Close transfer memory immediately as we don't use it.
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context.Device.System.KernelContext.Syscall.CloseHandle(context.Request.HandleDesc.ToCopy[0]);
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return ResultCode.Success;
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}
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[CommandCmif(3)] // 3.0.0+
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// GetWorkBufferSizeForMultiStream(buffer<unknown<0x110>, 0x19>) -> u32
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public ResultCode GetWorkBufferSizeForMultiStream(ServiceCtx context)
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{
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ulong parametersAddress = context.Request.PtrBuff[0].Position;
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OpusMultiStreamParameters parameters = context.Memory.Read<OpusMultiStreamParameters>(parametersAddress);
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int opusDecoderSize = GetOpusMultistreamDecoderSize(parameters.NumberOfStreams, parameters.NumberOfStereoStreams);
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int streamSize = BitUtils.AlignUp(parameters.NumberOfStreams * 1500, 64);
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int frameSize = BitUtils.AlignUp(parameters.ChannelsCount * 1920 / (48000 / parameters.SampleRate), 64);
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int totalSize = opusDecoderSize + streamSize + frameSize;
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context.ResponseData.Write(totalSize);
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return ResultCode.Success;
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}
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[CommandCmif(4)] // 12.0.0+
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// InitializeEx(OpusParametersEx, u32, handle<copy>) -> object<nn::codec::detail::IHardwareOpusDecoder>
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public ResultCode InitializeEx(ServiceCtx context)
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{
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OpusParametersEx parameters = context.RequestData.ReadStruct<OpusParametersEx>();
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// UseLargeFrameSize can be ignored due to not relying on fixed size buffers for storing the decoded result.
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MakeObject(context, new IHardwareOpusDecoder(parameters.SampleRate, parameters.ChannelsCount, parameters.Flags));
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// Close transfer memory immediately as we don't use it.
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context.Device.System.KernelContext.Syscall.CloseHandle(context.Request.HandleDesc.ToCopy[0]);
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return ResultCode.Success;
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}
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[CommandCmif(5)] // 12.0.0+
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// GetWorkBufferSizeEx(OpusParametersEx) -> u32
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public ResultCode GetWorkBufferSizeEx(ServiceCtx context)
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{
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OpusParametersEx parameters = context.RequestData.ReadStruct<OpusParametersEx>();
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int opusDecoderSize = GetOpusDecoderSize(parameters.ChannelsCount);
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int frameSizeMono48KHz = parameters.Flags.HasFlag(OpusDecoderFlags.LargeFrameSize) ? 5760 : 1920;
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int frameSize = BitUtils.AlignUp(parameters.ChannelsCount * frameSizeMono48KHz / (48000 / parameters.SampleRate), 64);
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int totalSize = opusDecoderSize + 1536 + frameSize;
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context.ResponseData.Write(totalSize);
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return ResultCode.Success;
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}
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[CommandCmif(6)] // 12.0.0+
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// InitializeForMultiStreamEx(u32, handle<copy>, buffer<unknown<0x118>, 0x19>) -> object<nn::codec::detail::IHardwareOpusDecoder>
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public ResultCode InitializeForMultiStreamEx(ServiceCtx context)
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{
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ulong parametersAddress = context.Request.PtrBuff[0].Position;
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OpusMultiStreamParametersEx parameters = context.Memory.Read<OpusMultiStreamParametersEx>(parametersAddress);
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byte[] mappings = MemoryMarshal.Cast<uint, byte>(parameters.ChannelMappings.AsSpan()).ToArray();
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// UseLargeFrameSize can be ignored due to not relying on fixed size buffers for storing the decoded result.
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MakeObject(context, new IHardwareOpusDecoder(
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parameters.SampleRate,
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parameters.ChannelsCount,
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parameters.NumberOfStreams,
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parameters.NumberOfStereoStreams,
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parameters.Flags,
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mappings));
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// Close transfer memory immediately as we don't use it.
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context.Device.System.KernelContext.Syscall.CloseHandle(context.Request.HandleDesc.ToCopy[0]);
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return ResultCode.Success;
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}
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[CommandCmif(7)] // 12.0.0+
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// GetWorkBufferSizeForMultiStreamEx(buffer<unknown<0x118>, 0x19>) -> u32
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public ResultCode GetWorkBufferSizeForMultiStreamEx(ServiceCtx context)
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{
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ulong parametersAddress = context.Request.PtrBuff[0].Position;
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OpusMultiStreamParametersEx parameters = context.Memory.Read<OpusMultiStreamParametersEx>(parametersAddress);
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int opusDecoderSize = GetOpusMultistreamDecoderSize(parameters.NumberOfStreams, parameters.NumberOfStereoStreams);
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int frameSizeMono48KHz = parameters.Flags.HasFlag(OpusDecoderFlags.LargeFrameSize) ? 5760 : 1920;
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int streamSize = BitUtils.AlignUp(parameters.NumberOfStreams * 1500, 64);
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int frameSize = BitUtils.AlignUp(parameters.ChannelsCount * frameSizeMono48KHz / (48000 / parameters.SampleRate), 64);
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int totalSize = opusDecoderSize + streamSize + frameSize;
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context.ResponseData.Write(totalSize);
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return ResultCode.Success;
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}
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private static int GetOpusMultistreamDecoderSize(int streams, int coupledStreams)
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{
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if (streams < 1 || coupledStreams > streams || coupledStreams < 0)
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{
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return 0;
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}
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int coupledSize = GetOpusDecoderSize(2);
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int monoSize = GetOpusDecoderSize(1);
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return Align4(monoSize - GetOpusDecoderAllocSize(1)) * (streams - coupledStreams) +
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Align4(coupledSize - GetOpusDecoderAllocSize(2)) * coupledStreams + 0xb90c;
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}
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private static int Align4(int value)
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{
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return BitUtils.AlignUp(value, 4);
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}
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private static int GetOpusDecoderSize(int channelsCount)
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{
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const int SilkDecoderSize = 0x2160;
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if (channelsCount < 1 || channelsCount > 2)
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{
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return 0;
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}
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int celtDecoderSize = GetCeltDecoderSize(channelsCount);
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int opusDecoderSize = GetOpusDecoderAllocSize(channelsCount) | 0x4c;
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return opusDecoderSize + SilkDecoderSize + celtDecoderSize;
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}
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private static int GetOpusDecoderAllocSize(int channelsCount)
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{
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return (channelsCount * 0x800 + 0x4803) & -0x800;
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}
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private static int GetCeltDecoderSize(int channelsCount)
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{
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const int DecodeBufferSize = 0x2030;
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const int Overlap = 120;
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const int EBandsCount = 21;
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return (DecodeBufferSize + Overlap * 4) * channelsCount + EBandsCount * 16 + 0x50;
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}
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}
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} |