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Fix MME shadow RAM implementation (#1051)

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gdkchan 2020-04-25 10:56:56 -03:00 • committed by GitHub
parent 1c9aba6de1
commit 9261ec6bc8
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3 changed files with 50 additions and 59 deletions
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55
Ryujinx.Graphics.Gpu/State/GpuState.cs
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@ -12,7 +12,8 @@ namespace Ryujinx.Graphics.Gpu.State
public delegate void MethodCallback(GpuState state, int argument);
private int[] _backingMemory;
private readonly int[] _memory;
private readonly int[] _shadow;
/// <summary>
/// GPU register information.
@ -29,14 +30,15 @@ namespace Ryujinx.Graphics.Gpu.State
public bool Modified;
}
private Register[] _registers;
private readonly Register[] _registers;
/// <summary>
/// Creates a new instance of the GPU state.
/// </summary>
public GpuState()
{
_backingMemory = new int[RegistersCount];
_memory = new int[RegistersCount];
_shadow = new int[RegistersCount];
_registers = new Register[RegistersCount];
@ -62,25 +64,40 @@ namespace Ryujinx.Graphics.Gpu.State
}
}
InitializeDefaultState();
InitializeDefaultState(_memory);
InitializeDefaultState(_shadow);
}
/// <summary>
/// Calls a GPU method, using this state.
/// </summary>
/// <param name="meth">The GPU method to be called</param>
public void CallMethod(MethodParams meth)
/// <param name="shadowCtrl">Shadow RAM control register value</param>
public void CallMethod(MethodParams meth, ShadowRamControl shadowCtrl)
{
int value = meth.Argument;
// TODO: Figure out what TrackWithFilter does, compared to Track.
if (shadowCtrl == ShadowRamControl.Track ||
shadowCtrl == ShadowRamControl.TrackWithFilter)
{
_shadow[meth.Method] = value;
}
else if (shadowCtrl == ShadowRamControl.Replay)
{
value = _shadow[meth.Method];
}
Register register = _registers[meth.Method];
if (_backingMemory[meth.Method] != meth.Argument)
if (_memory[meth.Method] != value)
{
_registers[(int)register.BaseOffset].Modified = true;
}
_backingMemory[meth.Method] = meth.Argument;
_memory[meth.Method] = value;
register.Callback?.Invoke(this, meth.Argument);
register.Callback?.Invoke(this, value);
}
/// <summary>
@ -90,7 +107,7 @@ namespace Ryujinx.Graphics.Gpu.State
/// <returns>Data at the register</returns>
public int Read(int offset)
{
return _backingMemory[offset];
return _memory[offset];
}
/// <summary>
@ -100,7 +117,7 @@ namespace Ryujinx.Graphics.Gpu.State
/// <param name="value">Value to be written</param>
public void Write(int offset, int value)
{
_backingMemory[offset] = value;
_memory[offset] = value;
}
/// <summary>
@ -109,29 +126,29 @@ namespace Ryujinx.Graphics.Gpu.State
/// <param name="offset">The offset to be written</param>
public void SetUniformBufferOffset(int offset)
{
_backingMemory[(int)MethodOffset.UniformBufferState + 3] = offset;
_memory[(int)MethodOffset.UniformBufferState + 3] = offset;
}
/// <summary>
/// Initializes registers with the default state.
/// </summary>
private void InitializeDefaultState()
private static void InitializeDefaultState(int[] memory)
{
// Enable Rasterizer
_backingMemory[(int)MethodOffset.RasterizeEnable] = 1;
memory[(int)MethodOffset.RasterizeEnable] = 1;
// Depth ranges.
for (int index = 0; index < Constants.TotalViewports; index++)
{
_backingMemory[(int)MethodOffset.ViewportExtents + index * 4 + 2] = 0;
_backingMemory[(int)MethodOffset.ViewportExtents + index * 4 + 3] = 0x3F800000;
memory[(int)MethodOffset.ViewportExtents + index * 4 + 2] = 0;
memory[(int)MethodOffset.ViewportExtents + index * 4 + 3] = 0x3F800000;
}
// Viewport transform enable.
_backingMemory[(int)MethodOffset.ViewportTransformEnable] = 1;
memory[(int)MethodOffset.ViewportTransformEnable] = 1;
// Default front stencil mask.
_backingMemory[0x4e7] = 0xff;
memory[0x4e7] = 0xff;
// Conditional rendering condition.
_backingMemory[0x556] = (int)Condition.Always;
@ -139,7 +156,7 @@ namespace Ryujinx.Graphics.Gpu.State
// Default color mask.
for (int index = 0; index < Constants.TotalRenderTargets; index++)
{
_backingMemory[(int)MethodOffset.RtColorMask + index] = 0x1111;
memory[(int)MethodOffset.RtColorMask + index] = 0x1111;
}
// Default blend states
@ -342,7 +359,7 @@ namespace Ryujinx.Graphics.Gpu.State
/// <returns>The data at the specified location</returns>
public T Get<T>(MethodOffset offset) where T : struct
{
return MemoryMarshal.Cast<int, T>(_backingMemory.AsSpan().Slice((int)offset))[0];
return MemoryMarshal.Cast<int, T>(_memory.AsSpan().Slice((int)offset))[0];
}
/// <summary>