mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-08-20 15:48:43 +02:00
Support shared color masks (used by Nouveau and maybe the NVIDIA driver). Support draw buffers (also required by OpenGL). Support viewport transform disable (disabled for now as it breaks some games). Fix instanced rendering draw being ignored for multi draw. Fix IADD and IADD3 immediate shader encodings, that was not matching some ops. Implement FFMA32I shader instruction. Implement IMAD shader instruction.
172 lines
4.7 KiB
C#
172 lines
4.7 KiB
C#
using Ryujinx.Graphics.Gpu.State;
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namespace Ryujinx.Graphics.Gpu
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{
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class NvGpuFifo
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{
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private const int MacrosCount = 0x80;
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private const int MacroIndexMask = MacrosCount - 1;
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// Note: The size of the macro memory is unknown, we just make
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// a guess here and use 256kb as the size. Increase if needed.
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private const int MmeWords = 256 * 256;
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private GpuContext _context;
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private struct CachedMacro
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{
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public int Position { get; private set; }
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private bool _executionPending;
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private int _argument;
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private MacroInterpreter _interpreter;
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public CachedMacro(GpuContext context, NvGpuFifo fifo, int position)
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{
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Position = position;
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_executionPending = false;
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_argument = 0;
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_interpreter = new MacroInterpreter(context, fifo);
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}
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public void StartExecution(int argument)
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{
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_argument = argument;
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_executionPending = true;
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}
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public void Execute(int[] mme, GpuState state)
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{
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if (_executionPending)
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{
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_executionPending = false;
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_interpreter?.Execute(mme, Position, _argument, state);
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}
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}
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public void PushArgument(int argument)
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{
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_interpreter?.Fifo.Enqueue(argument);
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}
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}
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private int _currMacroPosition;
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private int _currMacroBindIndex;
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private CachedMacro[] _macros;
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private int[] _mme;
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private class SubChannel
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{
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public GpuState State { get; }
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public ClassId Class { get; set; }
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public SubChannel()
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{
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State = new GpuState();
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}
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}
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private SubChannel[] _subChannels;
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public NvGpuFifo(GpuContext context)
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{
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_context = context;
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_macros = new CachedMacro[MacrosCount];
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_mme = new int[MmeWords];
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_subChannels = new SubChannel[8];
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for (int index = 0; index < _subChannels.Length; index++)
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{
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_subChannels[index] = new SubChannel();
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context.Methods.RegisterCallbacks(_subChannels[index].State);
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}
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}
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public void CallMethod(MethodParams meth)
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{
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if ((NvGpuFifoMeth)meth.Method == NvGpuFifoMeth.BindChannel)
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{
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_subChannels[meth.SubChannel].Class = (ClassId)meth.Argument;
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}
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else if (meth.Method < 0x60)
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{
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switch ((NvGpuFifoMeth)meth.Method)
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{
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case NvGpuFifoMeth.WaitForIdle:
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{
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_context.Methods.PerformDeferredDraws();
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_context.Renderer.FlushPipelines();
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break;
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}
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case NvGpuFifoMeth.SetMacroUploadAddress:
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{
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_currMacroPosition = meth.Argument;
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break;
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}
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case NvGpuFifoMeth.SendMacroCodeData:
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{
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_mme[_currMacroPosition++] = meth.Argument;
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break;
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}
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case NvGpuFifoMeth.SetMacroBindingIndex:
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{
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_currMacroBindIndex = meth.Argument;
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break;
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}
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case NvGpuFifoMeth.BindMacro:
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{
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int position = meth.Argument;
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_macros[_currMacroBindIndex++] = new CachedMacro(_context, this, position);
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break;
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}
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}
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}
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else if (meth.Method < 0xe00)
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{
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_subChannels[meth.SubChannel].State.CallMethod(meth);
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}
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else
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{
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int macroIndex = (meth.Method >> 1) & MacroIndexMask;
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if ((meth.Method & 1) != 0)
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{
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_macros[macroIndex].PushArgument(meth.Argument);
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}
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else
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{
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_macros[macroIndex].StartExecution(meth.Argument);
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}
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if (meth.IsLastCall)
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{
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_macros[macroIndex].Execute(_mme, _subChannels[meth.SubChannel].State);
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_context.Methods.PerformDeferredDraws();
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}
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}
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}
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}
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} |