From 1a919e99b29fff4e2158e622cb3dfbee21293b6d Mon Sep 17 00:00:00 2001
From: riperiperi <rhy3756547@hotmail.com>
Date: Thu, 18 Jul 2024 00:21:32 +0100
Subject: Vulkan: Defer guest barriers, and improve image barrier timings
 (#7012)

* More guarantees for buffer correct placement, defer guest requested buffers

* Split RP on indirect barrier rn

* Better handling for feedback loops.

* Qualcomm barriers suck too

* Fix condition

* Remove unused field

* Allow render pass barriers on turnip for now
---
 src/Ryujinx.Graphics.Vulkan/ShaderCollection.cs | 71 +++++++++++++++++++++++++
 1 file changed, 71 insertions(+)

(limited to 'src/Ryujinx.Graphics.Vulkan/ShaderCollection.cs')

diff --git a/src/Ryujinx.Graphics.Vulkan/ShaderCollection.cs b/src/Ryujinx.Graphics.Vulkan/ShaderCollection.cs
index b1547b79..c9aab401 100644
--- a/src/Ryujinx.Graphics.Vulkan/ShaderCollection.cs
+++ b/src/Ryujinx.Graphics.Vulkan/ShaderCollection.cs
@@ -27,6 +27,9 @@ namespace Ryujinx.Graphics.Vulkan
 
         public uint Stages { get; }
 
+        public PipelineStageFlags IncoherentBufferWriteStages { get; }
+        public PipelineStageFlags IncoherentTextureWriteStages { get; }
+
         public ResourceBindingSegment[][] ClearSegments { get; }
         public ResourceBindingSegment[][] BindingSegments { get; }
         public DescriptorSetTemplate[] Templates { get; }
@@ -131,6 +134,7 @@ namespace Ryujinx.Graphics.Vulkan
             ClearSegments = BuildClearSegments(sets);
             BindingSegments = BuildBindingSegments(resourceLayout.SetUsages, out bool usesBufferTextures);
             Templates = BuildTemplates(usePushDescriptors);
+            (IncoherentBufferWriteStages, IncoherentTextureWriteStages) = BuildIncoherentStages(resourceLayout.SetUsages);
 
             // Updating buffer texture bindings using template updates crashes the Adreno driver on Windows.
             UpdateTexturesWithoutTemplate = gd.IsQualcommProprietary && usesBufferTextures;
@@ -377,6 +381,73 @@ namespace Ryujinx.Graphics.Vulkan
             return templates;
         }
 
+        private PipelineStageFlags GetPipelineStages(ResourceStages stages)
+        {
+            PipelineStageFlags result = 0;
+
+            if ((stages & ResourceStages.Compute) != 0)
+            {
+                result |= PipelineStageFlags.ComputeShaderBit;
+            }
+
+            if ((stages & ResourceStages.Vertex) != 0)
+            {
+                result |= PipelineStageFlags.VertexShaderBit;
+            }
+
+            if ((stages & ResourceStages.Fragment) != 0)
+            {
+                result |= PipelineStageFlags.FragmentShaderBit;
+            }
+
+            if ((stages & ResourceStages.Geometry) != 0)
+            {
+                result |= PipelineStageFlags.GeometryShaderBit;
+            }
+
+            if ((stages & ResourceStages.TessellationControl) != 0)
+            {
+                result |= PipelineStageFlags.TessellationControlShaderBit;
+            }
+
+            if ((stages & ResourceStages.TessellationEvaluation) != 0)
+            {
+                result |= PipelineStageFlags.TessellationEvaluationShaderBit;
+            }
+
+            return result;
+        }
+
+        private (PipelineStageFlags Buffer, PipelineStageFlags Texture) BuildIncoherentStages(ReadOnlyCollection<ResourceUsageCollection> setUsages)
+        {
+            PipelineStageFlags buffer = PipelineStageFlags.None;
+            PipelineStageFlags texture = PipelineStageFlags.None;
+
+            foreach (var set in setUsages)
+            {
+                foreach (var range in set.Usages)
+                {
+                    if (range.Write)
+                    {
+                        PipelineStageFlags stages = GetPipelineStages(range.Stages);
+
+                        switch (range.Type)
+                        {
+                            case ResourceType.Image:
+                                texture |= stages;
+                                break;
+                            case ResourceType.StorageBuffer:
+                            case ResourceType.BufferImage:
+                                buffer |= stages;
+                                break;
+                        }
+                    }
+                }
+            }
+
+            return (buffer, texture);
+        }
+
         private async Task BackgroundCompilation()
         {
             await Task.WhenAll(_shaders.Select(shader => shader.CompileTask));
-- 
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