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using Ryujinx.Graphics.GAL;
namespace Ryujinx.Graphics.Gpu.Engine.Threed
{
/// <summary>
/// Semaphore updater.
/// </summary>
class SemaphoreUpdater
{
/// <summary>
/// GPU semaphore operation.
/// </summary>
private enum SemaphoreOperation
{
Release = 0,
Acquire = 1,
Counter = 2,
}
/// <summary>
/// Counter type for GPU counter reset.
/// </summary>
private enum ResetCounterType
{
SamplesPassed = 1,
ZcullStats = 2,
TransformFeedbackPrimitivesWritten = 0x10,
InputVertices = 0x12,
InputPrimitives = 0x13,
VertexShaderInvocations = 0x15,
TessControlShaderInvocations = 0x16,
TessEvaluationShaderInvocations = 0x17,
TessEvaluationShaderPrimitives = 0x18,
GeometryShaderInvocations = 0x1a,
GeometryShaderPrimitives = 0x1b,
ClipperInputPrimitives = 0x1c,
ClipperOutputPrimitives = 0x1d,
FragmentShaderInvocations = 0x1e,
PrimitivesGenerated = 0x1f,
}
/// <summary>
/// Counter type for GPU counter reporting.
/// </summary>
private enum ReportCounterType
{
Payload = 0,
InputVertices = 1,
InputPrimitives = 3,
VertexShaderInvocations = 5,
GeometryShaderInvocations = 7,
GeometryShaderPrimitives = 9,
ZcullStats0 = 0xa,
TransformFeedbackPrimitivesWritten = 0xb,
ZcullStats1 = 0xc,
ZcullStats2 = 0xe,
ClipperInputPrimitives = 0xf,
ZcullStats3 = 0x10,
ClipperOutputPrimitives = 0x11,
PrimitivesGenerated = 0x12,
FragmentShaderInvocations = 0x13,
SamplesPassed = 0x15,
TransformFeedbackOffset = 0x1a,
TessControlShaderInvocations = 0x1b,
TessEvaluationShaderInvocations = 0x1d,
TessEvaluationShaderPrimitives = 0x1f,
}
private readonly GpuContext _context;
private readonly GpuChannel _channel;
private readonly DeviceStateWithShadow<ThreedClassState> _state;
/// <summary>
/// Creates a new instance of the semaphore updater.
/// </summary>
/// <param name="context">GPU context</param>
/// <param name="channel">GPU channel</param>
/// <param name="state">Channel state</param>
public SemaphoreUpdater(GpuContext context, GpuChannel channel, DeviceStateWithShadow<ThreedClassState> state)
{
_context = context;
_channel = channel;
_state = state;
}
/// <summary>
/// Resets the value of an internal GPU counter back to zero.
/// </summary>
/// <param name="argument">Method call argument</param>
public void ResetCounter(int argument)
{
ResetCounterType type = (ResetCounterType)argument;
switch (type)
{
case ResetCounterType.SamplesPassed:
_context.Renderer.ResetCounter(CounterType.SamplesPassed);
break;
case ResetCounterType.PrimitivesGenerated:
_context.Renderer.ResetCounter(CounterType.PrimitivesGenerated);
break;
case ResetCounterType.TransformFeedbackPrimitivesWritten:
_context.Renderer.ResetCounter(CounterType.TransformFeedbackPrimitivesWritten);
break;
}
}
/// <summary>
/// Writes a GPU counter to guest memory.
/// </summary>
/// <param name="argument">Method call argument</param>
public void Report(int argument)
{
SemaphoreOperation op = (SemaphoreOperation)(argument & 3);
ReportCounterType type = (ReportCounterType)((argument >> 23) & 0x1f);
switch (op)
{
case SemaphoreOperation.Release:
ReleaseSemaphore();
break;
case SemaphoreOperation.Counter:
ReportCounter(type);
break;
}
}
/// <summary>
/// Writes (or Releases) a GPU semaphore value to guest memory.
/// </summary>
private void ReleaseSemaphore()
{
_channel.MemoryManager.Write(_state.State.SemaphoreAddress.Pack(), _state.State.SemaphorePayload);
_context.AdvanceSequence();
}
/// <summary>
/// Packed GPU counter data (including GPU timestamp) in memory.
/// </summary>
private struct CounterData
{
public ulong Counter;
public ulong Timestamp;
}
/// <summary>
/// Writes a GPU counter to guest memory.
/// This also writes the current timestamp value.
/// </summary>
/// <param name="type">Counter to be written to memory</param>
private void ReportCounter(ReportCounterType type)
{
ulong gpuVa = _state.State.SemaphoreAddress.Pack();
ulong ticks = _context.GetTimestamp();
ICounterEvent counter = null;
void resultHandler(object evt, ulong result)
{
CounterData counterData = new()
{
Counter = result,
Timestamp = ticks,
};
if (counter?.Invalid != true)
{
_channel.MemoryManager.Write(gpuVa, counterData);
}
}
switch (type)
{
case ReportCounterType.Payload:
resultHandler(null, (ulong)_state.State.SemaphorePayload);
break;
case ReportCounterType.SamplesPassed:
float scale = _channel.TextureManager.RenderTargetScale;
float divisor = scale * scale;
counter = _context.Renderer.ReportCounter(CounterType.SamplesPassed, resultHandler, divisor, false);
break;
case ReportCounterType.PrimitivesGenerated:
counter = _context.Renderer.ReportCounter(CounterType.PrimitivesGenerated, resultHandler, 1f, false);
break;
case ReportCounterType.TransformFeedbackPrimitivesWritten:
counter = _context.Renderer.ReportCounter(CounterType.TransformFeedbackPrimitivesWritten, resultHandler, 1f, false);
break;
}
_channel.MemoryManager.CounterCache.AddOrUpdate(gpuVa, counter);
}
}
}
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