diff --git a/Ryujinx.Graphics.Gpu/Engine/MethodClear.cs b/Ryujinx.Graphics.Gpu/Engine/MethodClear.cs
index ff538df33..a555015d4 100644
--- a/Ryujinx.Graphics.Gpu/Engine/MethodClear.cs
+++ b/Ryujinx.Graphics.Gpu/Engine/MethodClear.cs
@@ -13,6 +13,11 @@ namespace Ryujinx.Graphics.Gpu.Engine
/// Method call argument
private void Clear(GpuState state, int argument)
{
+ if (!GetRenderEnable(state))
+ {
+ return;
+ }
+
// Scissor affects clears aswell.
if (state.QueryModified(MethodOffset.ScissorState))
{
diff --git a/Ryujinx.Graphics.Gpu/Engine/MethodConditionalRendering.cs b/Ryujinx.Graphics.Gpu/Engine/MethodConditionalRendering.cs
new file mode 100644
index 000000000..4775de02f
--- /dev/null
+++ b/Ryujinx.Graphics.Gpu/Engine/MethodConditionalRendering.cs
@@ -0,0 +1,82 @@
+using Ryujinx.Common.Logging;
+using Ryujinx.Graphics.Gpu.State;
+
+namespace Ryujinx.Graphics.Gpu.Engine
+{
+ partial class Methods
+ {
+ ///
+ /// Checks if draws and clears should be performed, according
+ /// to currently set conditional rendering conditions.
+ ///
+ /// GPU state
+ /// True if rendering is enabled, false otherwise
+ private bool GetRenderEnable(GpuState state)
+ {
+ ConditionState condState = state.Get(MethodOffset.ConditionState);
+
+ switch (condState.Condition)
+ {
+ case Condition.Always:
+ return true;
+ case Condition.Never:
+ return false;
+ case Condition.ResultNonZero:
+ return CounterNonZero(condState.Address.Pack());
+ case Condition.Equal:
+ return CounterCompare(condState.Address.Pack(), true);
+ case Condition.NotEqual:
+ return CounterCompare(condState.Address.Pack(), false);
+ }
+
+ Logger.PrintWarning(LogClass.Gpu, $"Invalid conditional render condition \"{condState.Condition}\".");
+
+ return true;
+ }
+
+ ///
+ /// Checks if the counter value at a given GPU memory address is non-zero.
+ ///
+ /// GPU virtual address of the counter value
+ /// True if the value is not zero, false otherwise
+ private bool CounterNonZero(ulong gpuVa)
+ {
+ if (!FindAndFlush(gpuVa))
+ {
+ return false;
+ }
+
+ return _context.MemoryAccessor.ReadUInt64(gpuVa) != 0;
+ }
+
+ ///
+ /// Checks if the counter at a given GPU memory address passes a specified equality comparison.
+ ///
+ /// GPU virtual address
+ /// True to check if the values are equal, false to check if they are not equal
+ /// True if the condition is met, false otherwise
+ private bool CounterCompare(ulong gpuVa, bool isEqual)
+ {
+ if (!FindAndFlush(gpuVa) && !FindAndFlush(gpuVa + 16))
+ {
+ return false;
+ }
+
+ ulong x = _context.MemoryAccessor.ReadUInt64(gpuVa);
+ ulong y = _context.MemoryAccessor.ReadUInt64(gpuVa + 16);
+
+ return isEqual ? x == y : x != y;
+ }
+
+ ///
+ /// Tries to find a counter that is supposed to be written at the specified address,
+ /// flushing if necessary.
+ ///
+ /// GPU virtual address where the counter is supposed to be written
+ /// True if a counter value is found at the specified address, false otherwise
+ private bool FindAndFlush(ulong gpuVa)
+ {
+ return _counterCache.Contains(gpuVa);
+ }
+ }
+}
diff --git a/Ryujinx.Graphics.Gpu/Engine/MethodDraw.cs b/Ryujinx.Graphics.Gpu/Engine/MethodDraw.cs
index b13cc9cab..68131f626 100644
--- a/Ryujinx.Graphics.Gpu/Engine/MethodDraw.cs
+++ b/Ryujinx.Graphics.Gpu/Engine/MethodDraw.cs
@@ -35,8 +35,15 @@ namespace Ryujinx.Graphics.Gpu.Engine
/// Method call argument
private void DrawEnd(GpuState state, int argument)
{
- if (_instancedDrawPending)
+ bool renderEnable = GetRenderEnable(state);
+
+ if (!renderEnable || _instancedDrawPending)
{
+ if (!renderEnable)
+ {
+ PerformDeferredDraws();
+ }
+
_drawIndexed = false;
return;
diff --git a/Ryujinx.Graphics.Gpu/Engine/MethodReport.cs b/Ryujinx.Graphics.Gpu/Engine/MethodReport.cs
index 15151c62a..eeec3569c 100644
--- a/Ryujinx.Graphics.Gpu/Engine/MethodReport.cs
+++ b/Ryujinx.Graphics.Gpu/Engine/MethodReport.cs
@@ -1,5 +1,6 @@
using Ryujinx.Common;
using Ryujinx.Graphics.GAL;
+using Ryujinx.Graphics.Gpu.Memory;
using Ryujinx.Graphics.Gpu.State;
using System;
using System.Runtime.InteropServices;
@@ -11,6 +12,10 @@ namespace Ryujinx.Graphics.Gpu.Engine
private const int NsToTicksFractionNumerator = 384;
private const int NsToTicksFractionDenominator = 625;
+ private ulong _runningCounter;
+
+ private readonly CounterCache _counterCache = new CounterCache();
+
///
/// Writes a GPU counter to guest memory.
///
@@ -98,6 +103,8 @@ namespace Ryujinx.Graphics.Gpu.Engine
var rs = state.Get(MethodOffset.ReportState);
_context.MemoryAccessor.Write(rs.Address.Pack(), data);
+
+ _counterCache.AddOrUpdate(rs.Address.Pack());
}
///
diff --git a/Ryujinx.Graphics.Gpu/Engine/Methods.cs b/Ryujinx.Graphics.Gpu/Engine/Methods.cs
index 39a902e89..2e6c9828c 100644
--- a/Ryujinx.Graphics.Gpu/Engine/Methods.cs
+++ b/Ryujinx.Graphics.Gpu/Engine/Methods.cs
@@ -52,6 +52,8 @@ namespace Ryujinx.Graphics.Gpu.Engine
BufferManager = new BufferManager(context);
TextureManager = new TextureManager(context);
+
+ context.MemoryManager.MemoryUnmapped += _counterCache.MemoryUnmappedHandler;
}
///
diff --git a/Ryujinx.Graphics.Gpu/Memory/CounterCache.cs b/Ryujinx.Graphics.Gpu/Memory/CounterCache.cs
new file mode 100644
index 000000000..3110cdcc4
--- /dev/null
+++ b/Ryujinx.Graphics.Gpu/Memory/CounterCache.cs
@@ -0,0 +1,140 @@
+using System.Collections.Generic;
+
+namespace Ryujinx.Graphics.Gpu.Memory
+{
+ ///
+ /// Represents the GPU counter cache.
+ ///
+ class CounterCache
+ {
+ private struct CounterEntry
+ {
+ public ulong Address { get; }
+
+ public CounterEntry(ulong address)
+ {
+ Address = address;
+ }
+ }
+
+ private readonly List _items;
+
+ ///
+ /// Creates a new instance of the GPU counter cache.
+ ///
+ public CounterCache()
+ {
+ _items = new List();
+ }
+
+ ///
+ /// Adds a new counter to the counter cache, or updates a existing one.
+ ///
+ /// GPU virtual address where the counter will be written in memory
+ public void AddOrUpdate(ulong gpuVa)
+ {
+ int index = BinarySearch(gpuVa);
+
+ CounterEntry entry = new CounterEntry(gpuVa);
+
+ if (index < 0)
+ {
+ _items.Insert(~index, entry);
+ }
+ else
+ {
+ _items[index] = entry;
+ }
+ }
+
+ ///
+ /// Handles removal of counters written to a memory region being unmapped.
+ ///
+ /// Sender object
+ /// Event arguments
+ public void MemoryUnmappedHandler(object sender, UnmapEventArgs e) => RemoveRange(e.Address, e.Size);
+
+ private void RemoveRange(ulong gpuVa, ulong size)
+ {
+ int index = BinarySearch(gpuVa + size - 1);
+
+ if (index < 0)
+ {
+ index = ~index;
+ }
+
+ if (index >= _items.Count || !InRange(gpuVa, size, _items[index].Address))
+ {
+ return;
+ }
+
+ int count = 1;
+
+ while (index > 0 && InRange(gpuVa, size, _items[index - 1].Address))
+ {
+ index--;
+ count++;
+ }
+
+ _items.RemoveRange(index, count);
+ }
+
+ ///
+ /// Checks whenever an address falls inside a given range.
+ ///
+ /// Range start address
+ /// Range size
+ /// Address being checked
+ /// True if the address falls inside the range, false otherwise
+ private static bool InRange(ulong startVa, ulong size, ulong gpuVa)
+ {
+ return gpuVa >= startVa && gpuVa < startVa + size;
+ }
+
+ ///
+ /// Check if any counter value was written to the specified GPU virtual memory address.
+ ///
+ /// GPU virtual address
+ /// True if any counter value was written on the specified address, false otherwise
+ public bool Contains(ulong gpuVa)
+ {
+ return BinarySearch(gpuVa) >= 0;
+ }
+
+ ///
+ /// Performs binary search of an address on the list.
+ ///
+ /// Address to search
+ /// Index of the item, or complement of the index of the nearest item with lower value
+ private int BinarySearch(ulong address)
+ {
+ int left = 0;
+ int right = _items.Count - 1;
+
+ while (left <= right)
+ {
+ int range = right - left;
+
+ int middle = left + (range >> 1);
+
+ CounterEntry item = _items[middle];
+
+ if (item.Address == address)
+ {
+ return middle;
+ }
+
+ if (address < item.Address)
+ {
+ right = middle - 1;
+ }
+ else
+ {
+ left = middle + 1;
+ }
+ }
+
+ return ~left;
+ }
+ }
+}
diff --git a/Ryujinx.Graphics.Gpu/Memory/MemoryManager.cs b/Ryujinx.Graphics.Gpu/Memory/MemoryManager.cs
index e89255c88..f4af86f31 100644
--- a/Ryujinx.Graphics.Gpu/Memory/MemoryManager.cs
+++ b/Ryujinx.Graphics.Gpu/Memory/MemoryManager.cs
@@ -1,3 +1,5 @@
+using System;
+
namespace Ryujinx.Graphics.Gpu.Memory
{
///
@@ -27,7 +29,9 @@ namespace Ryujinx.Graphics.Gpu.Memory
private const ulong PteUnmapped = 0xffffffff_ffffffff;
private const ulong PteReserved = 0xffffffff_fffffffe;
- private ulong[][] _pageTable;
+ private readonly ulong[][] _pageTable;
+
+ public event EventHandler MemoryUnmapped;
///
/// Creates a new instance of the GPU memory manager.
@@ -181,6 +185,9 @@ namespace Ryujinx.Graphics.Gpu.Memory
{
SetPte(va + offset, PteUnmapped);
}
+
+ // Event handlers are not expected to be thread safe.
+ MemoryUnmapped?.Invoke(this, new UnmapEventArgs(va, size));
}
}
diff --git a/Ryujinx.Graphics.Gpu/Memory/UnmapEventArgs.cs b/Ryujinx.Graphics.Gpu/Memory/UnmapEventArgs.cs
new file mode 100644
index 000000000..305747f85
--- /dev/null
+++ b/Ryujinx.Graphics.Gpu/Memory/UnmapEventArgs.cs
@@ -0,0 +1,14 @@
+namespace Ryujinx.Graphics.Gpu.Memory
+{
+ public class UnmapEventArgs
+ {
+ public ulong Address { get; }
+ public ulong Size { get; }
+
+ public UnmapEventArgs(ulong address, ulong size)
+ {
+ Address = address;
+ Size = size;
+ }
+ }
+}
diff --git a/Ryujinx.Graphics.Gpu/State/GpuState.cs b/Ryujinx.Graphics.Gpu/State/GpuState.cs
index 9e0e50a04..981b96b7f 100644
--- a/Ryujinx.Graphics.Gpu/State/GpuState.cs
+++ b/Ryujinx.Graphics.Gpu/State/GpuState.cs
@@ -133,6 +133,9 @@ namespace Ryujinx.Graphics.Gpu.State
// Default front stencil mask.
_backingMemory[0x4e7] = 0xff;
+ // Conditional rendering condition.
+ _backingMemory[0x556] = (int)Condition.Always;
+
// Default color mask.
for (int index = 0; index < Constants.TotalRenderTargets; index++)
{