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ryujinx-final/Ryujinx.Graphics.Gpu/State/GpuState.cs
gdkchan cb171f6ebf Support shared color mask, implement more shader instructions
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.
2020-01-09 02:13:00 +01:00

210 lines
6.4 KiB
C#

using System;
using System.Runtime.InteropServices;
namespace Ryujinx.Graphics.Gpu.State
{
class GpuState
{
private const int RegistersCount = 0xe00;
public delegate void MethodCallback(GpuState state, int argument);
private int[] _backingMemory;
private struct Register
{
public MethodCallback Callback;
public MethodOffset BaseOffset;
public int Stride;
public int Count;
public bool Modified;
}
private Register[] _registers;
public GpuState()
{
_backingMemory = new int[RegistersCount];
_registers = new Register[RegistersCount];
for (int index = 0; index < _registers.Length; index++)
{
_registers[index].BaseOffset = (MethodOffset)index;
_registers[index].Stride = 1;
_registers[index].Count = 1;
_registers[index].Modified = true;
}
foreach (var item in GpuStateTable.Table)
{
int totalRegs = item.Size * item.Count;
for (int regOffset = 0; regOffset < totalRegs; regOffset++)
{
int index = (int)item.Offset + regOffset;
_registers[index].BaseOffset = item.Offset;
_registers[index].Stride = item.Size;
_registers[index].Count = item.Count;
}
}
InitializeDefaultState();
}
public void CallMethod(MethodParams meth)
{
Register register = _registers[meth.Method];
if (_backingMemory[meth.Method] != meth.Argument)
{
_registers[(int)register.BaseOffset].Modified = true;
}
_backingMemory[meth.Method] = meth.Argument;
MethodCallback callback = register.Callback;
if (callback != null)
{
callback(this, meth.Argument);
}
}
public int Read(int offset)
{
return _backingMemory[offset];
}
public void SetUniformBufferOffset(int offset)
{
_backingMemory[(int)MethodOffset.UniformBufferState + 3] = offset;
}
private void InitializeDefaultState()
{
// Depth ranges.
for (int index = 0; index < 8; index++)
{
_backingMemory[(int)MethodOffset.ViewportExtents + index * 4 + 2] = 0;
_backingMemory[(int)MethodOffset.ViewportExtents + index * 4 + 3] = 0x3F800000;
}
// Viewport transform enable.
_backingMemory[(int)MethodOffset.ViewportTransformEnable] = 1;
// Default front stencil mask.
_backingMemory[0x4e7] = 0xff;
// Default color mask.
for (int index = 0; index < Constants.TotalRenderTargets; index++)
{
_backingMemory[(int)MethodOffset.RtColorMask + index] = 0x1111;
}
}
public void RegisterCallback(MethodOffset offset, int count, MethodCallback callback)
{
for (int index = 0; index < count; index++)
{
_registers[(int)offset + index].Callback = callback;
}
}
public void RegisterCallback(MethodOffset offset, MethodCallback callback)
{
_registers[(int)offset].Callback = callback;
}
public bool QueryModified(MethodOffset offset)
{
bool modified = _registers[(int)offset].Modified;
_registers[(int)offset].Modified = false;
return modified;
}
public bool QueryModified(MethodOffset m1, MethodOffset m2)
{
bool modified = _registers[(int)m1].Modified ||
_registers[(int)m2].Modified;
_registers[(int)m1].Modified = false;
_registers[(int)m2].Modified = false;
return modified;
}
public bool QueryModified(MethodOffset m1, MethodOffset m2, MethodOffset m3)
{
bool modified = _registers[(int)m1].Modified ||
_registers[(int)m2].Modified ||
_registers[(int)m3].Modified;
_registers[(int)m1].Modified = false;
_registers[(int)m2].Modified = false;
_registers[(int)m3].Modified = false;
return modified;
}
public bool QueryModified(MethodOffset m1, MethodOffset m2, MethodOffset m3, MethodOffset m4)
{
bool modified = _registers[(int)m1].Modified ||
_registers[(int)m2].Modified ||
_registers[(int)m3].Modified ||
_registers[(int)m4].Modified;
_registers[(int)m1].Modified = false;
_registers[(int)m2].Modified = false;
_registers[(int)m3].Modified = false;
_registers[(int)m4].Modified = false;
return modified;
}
public bool QueryModified(
MethodOffset m1,
MethodOffset m2,
MethodOffset m3,
MethodOffset m4,
MethodOffset m5)
{
bool modified = _registers[(int)m1].Modified ||
_registers[(int)m2].Modified ||
_registers[(int)m3].Modified ||
_registers[(int)m4].Modified ||
_registers[(int)m5].Modified;
_registers[(int)m1].Modified = false;
_registers[(int)m2].Modified = false;
_registers[(int)m3].Modified = false;
_registers[(int)m4].Modified = false;
_registers[(int)m5].Modified = false;
return modified;
}
public T Get<T>(MethodOffset offset, int index) where T : struct
{
Register register = _registers[(int)offset];
if ((uint)index >= register.Count)
{
throw new ArgumentOutOfRangeException(nameof(index));
}
return Get<T>(offset + index * register.Stride);
}
public T Get<T>(MethodOffset offset) where T : struct
{
return MemoryMarshal.Cast<int, T>(_backingMemory.AsSpan().Slice((int)offset))[0];
}
}
}