Geometry shader emulation for macOS (#5551)

* Implement vertex and geometry shader conversion to compute

* Call InitializeReservedCounts for compute too

* PR feedback

* Set clip distance mask for geometry and tessellation shaders too

* Transform feedback emulation only for vertex

src/Ryujinx.Graphics.Shader/AttributeType.cs

@@ -11,13 +11,17 @@ namespace Ryujinx.Graphics.Shader
         Uint,
         Sscaled,
         Uscaled,
+
+        Packed = 1 << 6,
+        PackedRgb10A2Signed = 1 << 7,
+        AnyPacked = Packed | PackedRgb10A2Signed,
     }
 
     static class AttributeTypeExtensions
     {
         public static AggregateType ToAggregateType(this AttributeType type)
         {
-            return type switch
+            return (type & ~AttributeType.AnyPacked) switch
             {
                 AttributeType.Float => AggregateType.FP32,
                 AttributeType.Sint => AggregateType.S32,
@@ -28,7 +32,7 @@ namespace Ryujinx.Graphics.Shader
 
         public static AggregateType ToAggregateType(this AttributeType type, bool supportsScaledFormats)
         {
-            return type switch
+            return (type & ~AttributeType.AnyPacked) switch
             {
                 AttributeType.Float => AggregateType.FP32,
                 AttributeType.Sint => AggregateType.S32,

src/Ryujinx.Graphics.Shader/CodeGen/Glsl/Declarations.cs

@@ -100,10 +100,7 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl
                     else
                     {
                         string outPrimitive = context.Definitions.OutputTopology.ToGlslString();
-
-                        int maxOutputVertices = context.Definitions.GpPassthrough
-                            ? context.Definitions.InputTopology.ToInputVertices()
-                            : context.Definitions.MaxOutputVertices;
+                        int maxOutputVertices = context.Definitions.MaxOutputVertices;
 
                         context.AppendLine($"layout ({outPrimitive}, max_vertices = {maxOutputVertices}) out;");
                     }
@@ -320,15 +317,22 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl
             {
                 string typeName = GetVarTypeName(context, memory.Type & ~AggregateType.Array);
 
-                if (memory.ArrayLength > 0)
+                if (memory.Type.HasFlag(AggregateType.Array))
                 {
-                    string arraySize = memory.ArrayLength.ToString(CultureInfo.InvariantCulture);
+                    if (memory.ArrayLength > 0)
+                    {
+                        string arraySize = memory.ArrayLength.ToString(CultureInfo.InvariantCulture);
 
-                    context.AppendLine($"{prefix}{typeName} {memory.Name}[{arraySize}];");
+                        context.AppendLine($"{prefix}{typeName} {memory.Name}[{arraySize}];");
+                    }
+                    else
+                    {
+                        context.AppendLine($"{prefix}{typeName} {memory.Name}[];");
+                    }
                 }
                 else
                 {
-                    context.AppendLine($"{prefix}{typeName} {memory.Name}[];");
+                    context.AppendLine($"{prefix}{typeName} {memory.Name};");
                 }
             }
         }

src/Ryujinx.Graphics.Shader/CodeGen/Glsl/Instructions/IoMap.cs

@@ -31,6 +31,7 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl.Instructions
                 IoVariable.FrontColorDiffuse => ("gl_FrontColor", AggregateType.Vector4 | AggregateType.FP32), // Deprecated.
                 IoVariable.FrontColorSpecular => ("gl_FrontSecondaryColor", AggregateType.Vector4 | AggregateType.FP32), // Deprecated.
                 IoVariable.FrontFacing => ("gl_FrontFacing", AggregateType.Bool),
+                IoVariable.GlobalId => ("gl_GlobalInvocationID", AggregateType.Vector3 | AggregateType.U32),
                 IoVariable.InstanceId => ("gl_InstanceID", AggregateType.S32),
                 IoVariable.InstanceIndex => ("gl_InstanceIndex", AggregateType.S32),
                 IoVariable.InvocationId => ("gl_InvocationID", AggregateType.S32),

src/Ryujinx.Graphics.Shader/CodeGen/Spirv/CodeGenContext.cs

@@ -27,8 +27,6 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
         public ILogger Logger { get; }
         public TargetApi TargetApi { get; }
 
-        public int InputVertices { get; }
-
         public Dictionary<int, Instruction> ConstantBuffers { get; } = new();
         public Dictionary<int, Instruction> StorageBuffers { get; } = new();
 
@@ -101,19 +99,6 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
             Logger = parameters.Logger;
             TargetApi = parameters.TargetApi;
 
-            if (parameters.Definitions.Stage == ShaderStage.Geometry)
-            {
-                InputVertices = parameters.Definitions.InputTopology switch
-                {
-                    InputTopology.Points => 1,
-                    InputTopology.Lines => 2,
-                    InputTopology.LinesAdjacency => 2,
-                    InputTopology.Triangles => 3,
-                    InputTopology.TrianglesAdjacency => 3,
-                    _ => throw new InvalidOperationException($"Invalid input topology \"{parameters.Definitions.InputTopology}\"."),
-                };
-            }
-
             AddCapability(Capability.Shader);
             AddCapability(Capability.Float64);
 

src/Ryujinx.Graphics.Shader/CodeGen/Spirv/Declarations.cs

@@ -369,7 +369,7 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
                 if (context.Definitions.Stage != ShaderStage.Vertex)
                 {
                     var perVertexInputStructType = CreatePerVertexStructType(context);
-                    int arraySize = context.Definitions.Stage == ShaderStage.Geometry ? context.InputVertices : 32;
+                    int arraySize = context.Definitions.Stage == ShaderStage.Geometry ? context.Definitions.InputTopology.ToInputVertices() : 32;
                     var perVertexInputArrayType = context.TypeArray(perVertexInputStructType, context.Constant(context.TypeU32(), arraySize));
                     var perVertexInputPointerType = context.TypePointer(StorageClass.Input, perVertexInputArrayType);
                     var perVertexInputVariable = context.Variable(perVertexInputPointerType, StorageClass.Input);
@@ -506,7 +506,7 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
 
             if (!isPerPatch && IoMap.IsPerVertex(ioVariable, context.Definitions.Stage, isOutput))
             {
-                int arraySize = context.Definitions.Stage == ShaderStage.Geometry ? context.InputVertices : 32;
+                int arraySize = context.Definitions.Stage == ShaderStage.Geometry ? context.Definitions.InputTopology.ToInputVertices() : 32;
                 spvType = context.TypeArray(spvType, context.Constant(context.TypeU32(), arraySize));
 
                 if (context.Definitions.GpPassthrough && context.HostCapabilities.SupportsGeometryShaderPassthrough)

src/Ryujinx.Graphics.Shader/CodeGen/Spirv/IoMap.cs

@@ -22,6 +22,7 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
                 IoVariable.FragmentCoord => (BuiltIn.FragCoord, AggregateType.Vector4 | AggregateType.FP32),
                 IoVariable.FragmentOutputDepth => (BuiltIn.FragDepth, AggregateType.FP32),
                 IoVariable.FrontFacing => (BuiltIn.FrontFacing, AggregateType.Bool),
+                IoVariable.GlobalId => (BuiltIn.GlobalInvocationId, AggregateType.Vector3 | AggregateType.U32),
                 IoVariable.InstanceId => (BuiltIn.InstanceId, AggregateType.S32),
                 IoVariable.InstanceIndex => (BuiltIn.InstanceIndex, AggregateType.S32),
                 IoVariable.InvocationId => (BuiltIn.InvocationId, AggregateType.S32),

src/Ryujinx.Graphics.Shader/CodeGen/Spirv/SpirvGenerator.cs

@@ -239,9 +239,7 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
                         _ => throw new InvalidOperationException($"Invalid output topology \"{context.Definitions.OutputTopology}\"."),
                     });
 
-                    int maxOutputVertices = context.Definitions.GpPassthrough ? context.InputVertices : context.Definitions.MaxOutputVertices;
-
-                    context.AddExecutionMode(spvFunc, ExecutionMode.OutputVertices, (SpvLiteralInteger)maxOutputVertices);
+                    context.AddExecutionMode(spvFunc, ExecutionMode.OutputVertices, (SpvLiteralInteger)context.Definitions.MaxOutputVertices);
                 }
                 else if (context.Definitions.Stage == ShaderStage.Fragment)
                 {
@@ -279,6 +277,14 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
                         localSizeZ);
                 }
 
+                if (context.Definitions.Stage != ShaderStage.Fragment &&
+                    context.Definitions.Stage != ShaderStage.Geometry &&
+                    context.Definitions.Stage != ShaderStage.Compute &&
+                    context.Info.IoDefinitions.Contains(new IoDefinition(StorageKind.Output, IoVariable.Layer)))
+                {
+                    context.AddCapability(Capability.ShaderLayer);
+                }
+
                 if (context.Definitions.TransformFeedbackEnabled && context.Definitions.LastInVertexPipeline)
                 {
                     context.AddExecutionMode(spvFunc, ExecutionMode.Xfb);

src/Ryujinx.Graphics.Shader/Constants.cs

@@ -10,11 +10,5 @@ namespace Ryujinx.Graphics.Shader
         public const int NvnBaseVertexByteOffset = 0x640;
         public const int NvnBaseInstanceByteOffset = 0x644;
         public const int NvnDrawIndexByteOffset = 0x648;
-
-        // Transform Feedback emulation.
-
-        public const int TfeInfoBinding = 0;
-        public const int TfeBufferBaseBinding = 1;
-        public const int TfeBuffersCount = 4;
     }
 }

src/Ryujinx.Graphics.Shader/Decoders/DecodedProgram.cs

@@ -60,6 +60,11 @@ namespace Ryujinx.Graphics.Shader.Decoders
             _functionsWithId.Add(function);
         }
 
+        public IoUsage GetIoUsage()
+        {
+            return new IoUsage(UsedFeatures, ClipDistancesWritten, AttributeUsage.UsedOutputAttributes);
+        }
+
         public IEnumerator<DecodedFunction> GetEnumerator()
         {
             return _functions.Values.GetEnumerator();

src/Ryujinx.Graphics.Shader/Decoders/Decoder.cs

@@ -297,6 +297,9 @@ namespace Ryujinx.Graphics.Shader.Decoders
                     case InstName.Ssy:
                         block.AddPushOp(op);
                         break;
+                    case InstName.Shfl:
+                        context.SetUsedFeature(FeatureFlags.Shuffle);
+                        break;
                     case InstName.Ldl:
                     case InstName.Stl:
                         context.SetUsedFeature(FeatureFlags.LocalMemory);
@@ -307,8 +310,22 @@ namespace Ryujinx.Graphics.Shader.Decoders
                     case InstName.Sts:
                         context.SetUsedFeature(FeatureFlags.SharedMemory);
                         break;
-                    case InstName.Shfl:
-                        context.SetUsedFeature(FeatureFlags.Shuffle);
+                    case InstName.Atom:
+                    case InstName.AtomCas:
+                    case InstName.Red:
+                    case InstName.Stg:
+                    case InstName.Suatom:
+                    case InstName.SuatomB:
+                    case InstName.SuatomB2:
+                    case InstName.SuatomCas:
+                    case InstName.SuatomCasB:
+                    case InstName.Sured:
+                    case InstName.SuredB:
+                    case InstName.Sust:
+                    case InstName.SustB:
+                    case InstName.SustD:
+                    case InstName.SustDB:
+                        context.SetUsedFeature(FeatureFlags.Store);
                         break;
                 }
 
@@ -424,6 +441,12 @@ namespace Ryujinx.Graphics.Shader.Decoders
                                         context.SetUsedFeature(FeatureFlags.RtLayer);
                                     }
                                     break;
+                                case AttributeConsts.ViewportIndex:
+                                    if (definitions.Stage != ShaderStage.Fragment)
+                                    {
+                                        context.SetUsedFeature(FeatureFlags.ViewportIndex);
+                                    }
+                                    break;
                                 case AttributeConsts.ClipDistance0:
                                 case AttributeConsts.ClipDistance1:
                                 case AttributeConsts.ClipDistance2:
@@ -432,11 +455,17 @@ namespace Ryujinx.Graphics.Shader.Decoders
                                 case AttributeConsts.ClipDistance5:
                                 case AttributeConsts.ClipDistance6:
                                 case AttributeConsts.ClipDistance7:
-                                    if (definitions.Stage == ShaderStage.Vertex)
+                                    if (definitions.Stage.IsVtg())
                                     {
                                         context.SetClipDistanceWritten((attr - AttributeConsts.ClipDistance0) / 4);
                                     }
                                     break;
+                                case AttributeConsts.ViewportMask:
+                                    if (definitions.Stage != ShaderStage.Fragment)
+                                    {
+                                        context.SetUsedFeature(FeatureFlags.ViewportMask);
+                                    }
+                                    break;
                             }
                         }
                         else

src/Ryujinx.Graphics.Shader/InputTopology.cs

@@ -25,6 +25,19 @@ namespace Ryujinx.Graphics.Shader
         }
 
         public static int ToInputVertices(this InputTopology topology)
+        {
+            return topology switch
+            {
+                InputTopology.Points => 1,
+                InputTopology.Lines => 2,
+                InputTopology.LinesAdjacency => 4,
+                InputTopology.Triangles => 3,
+                InputTopology.TrianglesAdjacency => 6,
+                _ => 1,
+            };
+        }
+
+        public static int ToInputVerticesNoAdjacency(this InputTopology topology)
         {
             return topology switch
             {

src/Ryujinx.Graphics.Shader/Instructions/InstEmitAttribute.cs

@@ -63,7 +63,7 @@ namespace Ryujinx.Graphics.Shader.Instructions
                     {
                         value = AttributeMap.GenerateAttributeLoad(context, primVertex, offset, isOutput, op.P);
 
-                        if (!context.TranslatorContext.Definitions.SupportsScaledVertexFormats &&
+                        if ((!context.TranslatorContext.Definitions.SupportsScaledVertexFormats || context.VertexAsCompute) &&
                             context.TranslatorContext.Stage == ShaderStage.Vertex &&
                             !op.O &&
                             offset >= 0x80 &&

src/Ryujinx.Graphics.Shader/IntermediateRepresentation/IoVariable.cs

@@ -18,6 +18,7 @@ namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
         FrontColorDiffuse,
         FrontColorSpecular,
         FrontFacing,
+        GlobalId,
         InstanceId,
         InstanceIndex,
         InvocationId,

src/Ryujinx.Graphics.Shader/ResourceReservationCounts.cs

@@ -0,0 +1,22 @@
+using Ryujinx.Graphics.Shader.Translation;
+
+namespace Ryujinx.Graphics.Shader
+{
+    public readonly struct ResourceReservationCounts
+    {
+        public readonly int ReservedConstantBuffers { get; }
+        public readonly int ReservedStorageBuffers { get; }
+        public readonly int ReservedTextures { get; }
+        public readonly int ReservedImages { get; }
+
+        public ResourceReservationCounts(bool isTransformFeedbackEmulated, bool vertexAsCompute)
+        {
+            ResourceReservations reservations = new(isTransformFeedbackEmulated, vertexAsCompute);
+
+            ReservedConstantBuffers = reservations.ReservedConstantBuffers;
+            ReservedStorageBuffers = reservations.ReservedStorageBuffers;
+            ReservedTextures = reservations.ReservedTextures;
+            ReservedImages = reservations.ReservedImages;
+        }
+    }
+}

src/Ryujinx.Graphics.Shader/ShaderIdentification.cs

@@ -1,8 +0,0 @@
-namespace Ryujinx.Graphics.Shader
-{
-    public enum ShaderIdentification
-    {
-        None,
-        GeometryLayerPassthrough,
-    }
-}

src/Ryujinx.Graphics.Shader/ShaderProgramInfo.cs

@@ -10,9 +10,10 @@ namespace Ryujinx.Graphics.Shader
         public ReadOnlyCollection<TextureDescriptor> Textures { get; }
         public ReadOnlyCollection<TextureDescriptor> Images { get; }
 
-        public ShaderIdentification Identification { get; }
-        public int GpLayerInputAttribute { get; }
         public ShaderStage Stage { get; }
+        public int GeometryVerticesPerPrimitive { get; }
+        public int GeometryMaxOutputVertices { get; }
+        public int ThreadsPerInputPrimitive { get; }
         public bool UsesFragCoord { get; }
         public bool UsesInstanceId { get; }
         public bool UsesDrawParameters { get; }
@@ -25,9 +26,10 @@ namespace Ryujinx.Graphics.Shader
             BufferDescriptor[] sBuffers,
             TextureDescriptor[] textures,
             TextureDescriptor[] images,
-            ShaderIdentification identification,
-            int gpLayerInputAttribute,
             ShaderStage stage,
+            int geometryVerticesPerPrimitive,
+            int geometryMaxOutputVertices,
+            int threadsPerInputPrimitive,
             bool usesFragCoord,
             bool usesInstanceId,
             bool usesDrawParameters,
@@ -40,9 +42,10 @@ namespace Ryujinx.Graphics.Shader
             Textures = Array.AsReadOnly(textures);
             Images = Array.AsReadOnly(images);
 
-            Identification = identification;
-            GpLayerInputAttribute = gpLayerInputAttribute;
             Stage = stage;
+            GeometryVerticesPerPrimitive = geometryVerticesPerPrimitive;
+            GeometryMaxOutputVertices = geometryMaxOutputVertices;
+            ThreadsPerInputPrimitive = threadsPerInputPrimitive;
             UsesFragCoord = usesFragCoord;
             UsesInstanceId = usesInstanceId;
             UsesDrawParameters = usesDrawParameters;

src/Ryujinx.Graphics.Shader/SupportBuffer.cs

@@ -22,11 +22,13 @@ namespace Ryujinx.Graphics.Shader
         ViewportSize,
         FragmentRenderScaleCount,
         RenderScale,
+        TfeOffset,
+        TfeVertexCount,
     }
 
     public struct SupportBuffer
     {
-        internal const int Binding = 0;
+        public const int Binding = 0;
 
         public static readonly int FieldSize;
         public static readonly int RequiredSize;
@@ -38,6 +40,8 @@ namespace Ryujinx.Graphics.Shader
         public static readonly int FragmentRenderScaleCountOffset;
         public static readonly int GraphicsRenderScaleOffset;
         public static readonly int ComputeRenderScaleOffset;
+        public static readonly int TfeOffsetOffset;
+        public static readonly int TfeVertexCountOffset;
 
         public const int FragmentIsBgraCount = 8;
         // One for the render target, 64 for the textures, and 8 for the images.
@@ -62,18 +66,22 @@ namespace Ryujinx.Graphics.Shader
             FragmentRenderScaleCountOffset = OffsetOf(ref instance, ref instance.FragmentRenderScaleCount);
             GraphicsRenderScaleOffset = OffsetOf(ref instance, ref instance.RenderScale);
             ComputeRenderScaleOffset = GraphicsRenderScaleOffset + FieldSize;
+            TfeOffsetOffset = OffsetOf(ref instance, ref instance.TfeOffset);
+            TfeVertexCountOffset = OffsetOf(ref instance, ref instance.TfeVertexCount);
         }
 
         internal static StructureType GetStructureType()
         {
             return new StructureType(new[]
             {
-                new StructureField(AggregateType.U32, "s_alpha_test"),
-                new StructureField(AggregateType.Array | AggregateType.U32, "s_is_bgra", FragmentIsBgraCount),
-                new StructureField(AggregateType.Vector4 | AggregateType.FP32, "s_viewport_inverse"),
-                new StructureField(AggregateType.Vector4 | AggregateType.FP32, "s_viewport_size"),
-                new StructureField(AggregateType.S32, "s_frag_scale_count"),
-                new StructureField(AggregateType.Array | AggregateType.FP32, "s_render_scale", RenderScaleMaxCount),
+                new StructureField(AggregateType.U32, "alpha_test"),
+                new StructureField(AggregateType.Array | AggregateType.U32, "is_bgra", FragmentIsBgraCount),
+                new StructureField(AggregateType.Vector4 | AggregateType.FP32, "viewport_inverse"),
+                new StructureField(AggregateType.Vector4 | AggregateType.FP32, "viewport_size"),
+                new StructureField(AggregateType.S32, "frag_scale_count"),
+                new StructureField(AggregateType.Array | AggregateType.FP32, "render_scale", RenderScaleMaxCount),
+                new StructureField(AggregateType.Vector4 | AggregateType.S32, "tfe_offset"),
+                new StructureField(AggregateType.S32, "tfe_vertex_count"),
             });
         }
 
@@ -85,5 +93,8 @@ namespace Ryujinx.Graphics.Shader
 
         // Render scale max count: 1 + 64 + 8. First scale is fragment output scale, others are textures/image inputs.
         public Array73<Vector4<float>> RenderScale;
+
+        public Vector4<int> TfeOffset;
+        public Vector4<int> TfeVertexCount;
     }
 }

src/Ryujinx.Graphics.Shader/Translation/AttributeConsts.cs

@@ -4,6 +4,7 @@ namespace Ryujinx.Graphics.Shader.Translation
     {
         public const int PrimitiveId = 0x060;
         public const int Layer = 0x064;
+        public const int ViewportIndex = 0x068;
         public const int PositionX = 0x070;
         public const int PositionY = 0x074;
         public const int FrontColorDiffuseR = 0x280;
@@ -24,6 +25,7 @@ namespace Ryujinx.Graphics.Shader.Translation
         public const int TexCoordCount = 10;
         public const int TexCoordBase = 0x300;
         public const int TexCoordEnd = TexCoordBase + TexCoordCount * 16;
+        public const int ViewportMask = 0x3a0;
         public const int FrontFacing = 0x3fc;
 
         public const int UserAttributesCount = 32;

src/Ryujinx.Graphics.Shader/Translation/EmitterContext.cs

@@ -14,6 +14,8 @@ namespace Ryujinx.Graphics.Shader.Translation
         public TranslatorContext TranslatorContext { get; }
         public ResourceManager ResourceManager { get; }
 
+        public bool VertexAsCompute { get; }
+
         public bool IsNonMain { get; }
 
         public Block CurrBlock { get; set; }
@@ -59,11 +61,13 @@ namespace Ryujinx.Graphics.Shader.Translation
             TranslatorContext translatorContext,
             ResourceManager resourceManager,
             DecodedProgram program,
+            bool vertexAsCompute,
             bool isNonMain) : this()
         {
             TranslatorContext = translatorContext;
             ResourceManager = resourceManager;
             Program = program;
+            VertexAsCompute = vertexAsCompute;
             IsNonMain = isNonMain;
 
             EmitStart();
@@ -71,13 +75,87 @@ namespace Ryujinx.Graphics.Shader.Translation
 
         private void EmitStart()
         {
-            if (TranslatorContext.Definitions.Stage == ShaderStage.Vertex &&
-                TranslatorContext.Options.TargetApi == TargetApi.Vulkan &&
-                (TranslatorContext.Options.Flags & TranslationFlags.VertexA) == 0)
+            if (TranslatorContext.Options.Flags.HasFlag(TranslationFlags.VertexA))
+            {
+                return;
+            }
+
+            if (TranslatorContext.Definitions.Stage == ShaderStage.Vertex && TranslatorContext.Options.TargetApi == TargetApi.Vulkan)
             {
                 // Vulkan requires the point size to be always written on the shader if the primitive topology is points.
                 this.Store(StorageKind.Output, IoVariable.PointSize, null, ConstF(TranslatorContext.Definitions.PointSize));
             }
+
+            if (VertexAsCompute)
+            {
+                int vertexInfoCbBinding = ResourceManager.Reservations.VertexInfoConstantBufferBinding;
+                int countFieldIndex = TranslatorContext.Stage == ShaderStage.Vertex
+                    ? (int)VertexInfoBufferField.VertexCounts
+                    : (int)VertexInfoBufferField.GeometryCounts;
+
+                Operand outputVertexOffset = this.Load(StorageKind.Input, IoVariable.GlobalId, Const(0));
+                Operand vertexCount = this.Load(StorageKind.ConstantBuffer, vertexInfoCbBinding, Const(countFieldIndex), Const(0));
+                Operand isVertexOob = this.ICompareGreaterOrEqualUnsigned(outputVertexOffset, vertexCount);
+
+                Operand lblVertexInBounds = Label();
+
+                this.BranchIfFalse(lblVertexInBounds, isVertexOob);
+                this.Return();
+                this.MarkLabel(lblVertexInBounds);
+
+                Operand outputInstanceOffset = this.Load(StorageKind.Input, IoVariable.GlobalId, Const(1));
+                Operand instanceCount = this.Load(StorageKind.ConstantBuffer, vertexInfoCbBinding, Const((int)VertexInfoBufferField.VertexCounts), Const(1));
+                Operand firstVertex = this.Load(StorageKind.ConstantBuffer, vertexInfoCbBinding, Const((int)VertexInfoBufferField.VertexCounts), Const(2));
+                Operand firstInstance = this.Load(StorageKind.ConstantBuffer, vertexInfoCbBinding, Const((int)VertexInfoBufferField.VertexCounts), Const(3));
+                Operand ibBaseOffset = this.Load(StorageKind.ConstantBuffer, vertexInfoCbBinding, Const((int)VertexInfoBufferField.GeometryCounts), Const(3));
+                Operand isInstanceOob = this.ICompareGreaterOrEqualUnsigned(outputInstanceOffset, instanceCount);
+
+                Operand lblInstanceInBounds = Label();
+
+                this.BranchIfFalse(lblInstanceInBounds, isInstanceOob);
+                this.Return();
+                this.MarkLabel(lblInstanceInBounds);
+
+                if (TranslatorContext.Stage == ShaderStage.Vertex)
+                {
+                    Operand vertexIndexVr = Local();
+
+                    this.TextureSample(
+                        SamplerType.TextureBuffer,
+                        TextureFlags.IntCoords,
+                        ResourceManager.Reservations.IndexBufferTextureBinding,
+                        1,
+                        new[] { vertexIndexVr },
+                        new[] { this.IAdd(ibBaseOffset, outputVertexOffset) });
+
+                    this.Store(StorageKind.LocalMemory, ResourceManager.LocalVertexIndexVertexRateMemoryId, this.IAdd(firstVertex, vertexIndexVr));
+                    this.Store(StorageKind.LocalMemory, ResourceManager.LocalVertexIndexInstanceRateMemoryId, this.IAdd(firstInstance, outputInstanceOffset));
+                }
+                else if (TranslatorContext.Stage == ShaderStage.Geometry)
+                {
+                    int inputVertices = TranslatorContext.Definitions.InputTopology.ToInputVertices();
+
+                    Operand baseVertex = this.IMultiply(outputVertexOffset, Const(inputVertices));
+
+                    for (int index = 0; index < inputVertices; index++)
+                    {
+                        Operand vertexIndex = Local();
+
+                        this.TextureSample(
+                            SamplerType.TextureBuffer,
+                            TextureFlags.IntCoords,
+                            ResourceManager.Reservations.TopologyRemapBufferTextureBinding,
+                            1,
+                            new[] { vertexIndex },
+                            new[] { this.IAdd(baseVertex, Const(index)) });
+
+                        this.Store(StorageKind.LocalMemory, ResourceManager.LocalTopologyRemapMemoryId, Const(index), vertexIndex);
+                    }
+
+                    this.Store(StorageKind.LocalMemory, ResourceManager.LocalGeometryOutputVertexCountMemoryId, Const(0));
+                    this.Store(StorageKind.LocalMemory, ResourceManager.LocalGeometryOutputIndexCountMemoryId, Const(0));
+                }
+            }
         }
 
         public T GetOp<T>() where T : unmanaged
@@ -166,16 +244,21 @@ namespace Ryujinx.Graphics.Shader.Translation
 
         public void PrepareForVertexReturn()
         {
-            if (!TranslatorContext.GpuAccessor.QueryHostSupportsTransformFeedback() && TranslatorContext.GpuAccessor.QueryTransformFeedbackEnabled())
-            {
-                Operand vertexCount = this.Load(StorageKind.StorageBuffer, Constants.TfeInfoBinding, Const(1));
+            // TODO: Support transform feedback emulation on stages other than vertex.
+            // Those stages might produce more primitives, so it needs a way to "compact" the output after it is written.
 
-                for (int tfbIndex = 0; tfbIndex < Constants.TfeBuffersCount; tfbIndex++)
+            if (!TranslatorContext.GpuAccessor.QueryHostSupportsTransformFeedback() &&
+                TranslatorContext.GpuAccessor.QueryTransformFeedbackEnabled() &&
+                TranslatorContext.Stage == ShaderStage.Vertex)
+            {
+                Operand vertexCount = this.Load(StorageKind.ConstantBuffer, SupportBuffer.Binding, Const((int)SupportBufferField.TfeVertexCount));
+
+                for (int tfbIndex = 0; tfbIndex < ResourceReservations.TfeBuffersCount; tfbIndex++)
                 {
                     var locations = TranslatorContext.GpuAccessor.QueryTransformFeedbackVaryingLocations(tfbIndex);
                     var stride = TranslatorContext.GpuAccessor.QueryTransformFeedbackStride(tfbIndex);
 
-                    Operand baseOffset = this.Load(StorageKind.StorageBuffer, Constants.TfeInfoBinding, Const(0), Const(tfbIndex));
+                    Operand baseOffset = this.Load(StorageKind.ConstantBuffer, SupportBuffer.Binding, Const((int)SupportBufferField.TfeOffset), Const(tfbIndex));
                     Operand baseVertex = this.Load(StorageKind.Input, IoVariable.BaseVertex);
                     Operand baseInstance = this.Load(StorageKind.Input, IoVariable.BaseInstance);
                     Operand vertexIndex = this.Load(StorageKind.Input, IoVariable.VertexIndex);
@@ -200,7 +283,9 @@ namespace Ryujinx.Graphics.Shader.Translation
                         Operand offset = this.IAdd(baseOffset, Const(j));
                         Operand value = Instructions.AttributeMap.GenerateAttributeLoad(this, null, location * 4, isOutput: true, isPerPatch: false);
 
-                        this.Store(StorageKind.StorageBuffer, Constants.TfeBufferBaseBinding + tfbIndex, Const(0), offset, value);
+                        int binding = ResourceManager.Reservations.GetTfeBufferStorageBufferBinding(tfbIndex);
+
+                        this.Store(StorageKind.StorageBuffer, binding, Const(0), offset, value);
                     }
                 }
             }
@@ -225,16 +310,6 @@ namespace Ryujinx.Graphics.Shader.Translation
 
                 this.Store(StorageKind.Output, IoVariable.Position, null, Const(2), this.FPFusedMultiplyAdd(z, ConstF(0.5f), halfW));
             }
-
-            if (TranslatorContext.Definitions.Stage != ShaderStage.Geometry && TranslatorContext.HasLayerInputAttribute)
-            {
-                int attrVecIndex = TranslatorContext.GpLayerInputAttribute >> 2;
-                int attrComponentIndex = TranslatorContext.GpLayerInputAttribute & 3;
-
-                Operand layer = this.Load(StorageKind.Output, IoVariable.UserDefined, null, Const(attrVecIndex), Const(attrComponentIndex));
-
-                this.Store(StorageKind.Output, IoVariable.Layer, null, layer);
-            }
         }
 
         public void PrepareForVertexReturn(out Operand oldXLocal, out Operand oldYLocal, out Operand oldZLocal)
@@ -308,9 +383,30 @@ namespace Ryujinx.Graphics.Shader.Translation
 
                 if (TranslatorContext.Definitions.GpPassthrough && !TranslatorContext.GpuAccessor.QueryHostSupportsGeometryShaderPassthrough())
                 {
-                    int inputVertices = TranslatorContext.Definitions.InputTopology.ToInputVertices();
+                    int inputStart, inputEnd, inputStep;
 
-                    for (int primIndex = 0; primIndex < inputVertices; primIndex++)
+                    InputTopology topology = TranslatorContext.Definitions.InputTopology;
+
+                    if (topology == InputTopology.LinesAdjacency)
+                    {
+                        inputStart = 1;
+                        inputEnd = 3;
+                        inputStep = 1;
+                    }
+                    else if (topology == InputTopology.TrianglesAdjacency)
+                    {
+                        inputStart = 0;
+                        inputEnd = 6;
+                        inputStep = 2;
+                    }
+                    else
+                    {
+                        inputStart = 0;
+                        inputEnd = topology.ToInputVerticesNoAdjacency();
+                        inputStep = 1;
+                    }
+
+                    for (int primIndex = inputStart; primIndex < inputEnd; primIndex += inputStep)
                     {
                         WritePositionOutput(primIndex);
 
@@ -428,6 +524,65 @@ namespace Ryujinx.Graphics.Shader.Translation
                 }
             }
 
+            if (VertexAsCompute)
+            {
+                if (TranslatorContext.Stage == ShaderStage.Vertex)
+                {
+                    int vertexInfoCbBinding = ResourceManager.Reservations.VertexInfoConstantBufferBinding;
+                    int vertexOutputSbBinding = ResourceManager.Reservations.VertexOutputStorageBufferBinding;
+                    int stride = ResourceManager.Reservations.OutputSizePerInvocation;
+
+                    Operand vertexCount = this.Load(StorageKind.ConstantBuffer, vertexInfoCbBinding, Const((int)VertexInfoBufferField.VertexCounts), Const(0));
+
+                    Operand outputVertexOffset = this.Load(StorageKind.Input, IoVariable.GlobalId, Const(0));
+                    Operand outputInstanceOffset = this.Load(StorageKind.Input, IoVariable.GlobalId, Const(1));
+
+                    Operand outputBaseVertex = this.IMultiply(outputInstanceOffset, vertexCount);
+
+                    Operand baseOffset = this.IMultiply(this.IAdd(outputBaseVertex, outputVertexOffset), Const(stride));
+
+                    for (int offset = 0; offset < stride; offset++)
+                    {
+                        Operand vertexOffset = this.IAdd(baseOffset, Const(offset));
+                        Operand value = this.Load(StorageKind.LocalMemory, ResourceManager.LocalVertexDataMemoryId, Const(offset));
+
+                        this.Store(StorageKind.StorageBuffer, vertexOutputSbBinding, Const(0), vertexOffset, value);
+                    }
+                }
+                else if (TranslatorContext.Stage == ShaderStage.Geometry)
+                {
+                    Operand lblLoopHead = Label();
+                    Operand lblExit = Label();
+
+                    this.MarkLabel(lblLoopHead);
+
+                    Operand writtenIndices = this.Load(StorageKind.LocalMemory, ResourceManager.LocalGeometryOutputIndexCountMemoryId);
+
+                    int maxIndicesPerPrimitiveInvocation = TranslatorContext.Definitions.GetGeometryOutputIndexBufferStridePerInstance();
+                    int maxIndicesPerPrimitive = maxIndicesPerPrimitiveInvocation * TranslatorContext.Definitions.ThreadsPerInputPrimitive;
+
+                    this.BranchIfTrue(lblExit, this.ICompareGreaterOrEqualUnsigned(writtenIndices, Const(maxIndicesPerPrimitiveInvocation)));
+
+                    int vertexInfoCbBinding = ResourceManager.Reservations.VertexInfoConstantBufferBinding;
+
+                    Operand primitiveIndex = this.Load(StorageKind.Input, IoVariable.GlobalId, Const(0));
+                    Operand instanceIndex = this.Load(StorageKind.Input, IoVariable.GlobalId, Const(1));
+                    Operand invocationId = this.Load(StorageKind.Input, IoVariable.GlobalId, Const(2));
+                    Operand vertexCount = this.Load(StorageKind.ConstantBuffer, vertexInfoCbBinding, Const((int)VertexInfoBufferField.VertexCounts), Const(0));
+                    Operand primitiveId = this.IAdd(this.IMultiply(instanceIndex, vertexCount), primitiveIndex);
+                    Operand ibOffset = this.IMultiply(primitiveId, Const(maxIndicesPerPrimitive));
+                    ibOffset = this.IAdd(ibOffset, this.IMultiply(invocationId, Const(maxIndicesPerPrimitiveInvocation)));
+                    ibOffset = this.IAdd(ibOffset, writtenIndices);
+
+                    this.Store(StorageKind.StorageBuffer, ResourceManager.Reservations.GeometryIndexOutputStorageBufferBinding, Const(0), ibOffset, Const(-1));
+                    this.Store(StorageKind.LocalMemory, ResourceManager.LocalGeometryOutputIndexCountMemoryId, this.IAdd(writtenIndices, Const(1)));
+
+                    this.Branch(lblLoopHead);
+
+                    this.MarkLabel(lblExit);
+                }
+            }
+
             return true;
         }
 

src/Ryujinx.Graphics.Shader/Translation/EmitterContextInsts.cs

@@ -831,6 +831,11 @@ namespace Ryujinx.Graphics.Shader.Translation
             return context.Add(Instruction.Store, storageKind, null, e0, e1, value);
         }
 
+        public static Operand Store(this EmitterContext context, StorageKind storageKind, int binding, Operand value)
+        {
+            return context.Add(Instruction.Store, storageKind, null, Const(binding), value);
+        }
+
         public static Operand Store(this EmitterContext context, StorageKind storageKind, int binding, Operand e0, Operand value)
         {
             return context.Add(Instruction.Store, storageKind, null, Const(binding), e0, value);

src/Ryujinx.Graphics.Shader/Translation/FeatureFlags.cs

@@ -19,8 +19,12 @@ namespace Ryujinx.Graphics.Shader.Translation
         DrawParameters = 1 << 4,
         RtLayer = 1 << 5,
         Shuffle = 1 << 6,
+        ViewportIndex = 1 << 7,
+        ViewportMask = 1 << 8,
         FixedFuncAttr = 1 << 9,
         LocalMemory = 1 << 10,
         SharedMemory = 1 << 11,
+        Store = 1 << 12,
+        VtgAsCompute = 1 << 13,
     }
 }

src/Ryujinx.Graphics.Shader/Translation/IoUsage.cs

@@ -0,0 +1,28 @@
+namespace Ryujinx.Graphics.Shader.Translation
+{
+    readonly struct IoUsage
+    {
+        private readonly FeatureFlags _usedFeatures;
+
+        public readonly bool UsesRtLayer => _usedFeatures.HasFlag(FeatureFlags.RtLayer);
+        public readonly bool UsesViewportIndex => _usedFeatures.HasFlag(FeatureFlags.ViewportIndex);
+        public readonly bool UsesViewportMask => _usedFeatures.HasFlag(FeatureFlags.ViewportMask);
+        public readonly byte ClipDistancesWritten { get; }
+        public readonly int UserDefinedMap { get; }
+
+        public IoUsage(FeatureFlags usedFeatures, byte clipDistancesWritten, int userDefinedMap)
+        {
+            _usedFeatures = usedFeatures;
+            ClipDistancesWritten = clipDistancesWritten;
+            UserDefinedMap = userDefinedMap;
+        }
+
+        public readonly IoUsage Combine(IoUsage other)
+        {
+            return new IoUsage(
+                _usedFeatures | other._usedFeatures,
+                (byte)(ClipDistancesWritten | other.ClipDistancesWritten),
+                UserDefinedMap | other.UserDefinedMap);
+        }
+    }
+}

src/Ryujinx.Graphics.Shader/Translation/ResourceManager.cs

@@ -48,12 +48,22 @@ namespace Ryujinx.Graphics.Shader.Translation
         public int LocalMemoryId { get; private set; }
         public int SharedMemoryId { get; private set; }
 
+        public int LocalVertexDataMemoryId { get; private set; }
+        public int LocalTopologyRemapMemoryId { get; private set; }
+        public int LocalVertexIndexVertexRateMemoryId { get; private set; }
+        public int LocalVertexIndexInstanceRateMemoryId { get; private set; }
+        public int LocalGeometryOutputVertexCountMemoryId { get; private set; }
+        public int LocalGeometryOutputIndexCountMemoryId { get; private set; }
+
         public ShaderProperties Properties { get; }
 
-        public ResourceManager(ShaderStage stage, IGpuAccessor gpuAccessor)
+        public ResourceReservations Reservations { get; }
+
+        public ResourceManager(ShaderStage stage, IGpuAccessor gpuAccessor, ResourceReservations reservations = null)
         {
             _gpuAccessor = gpuAccessor;
             Properties = new();
+            Reservations = reservations;
             _stage = stage;
             _stagePrefix = GetShaderStagePrefix(stage);
 
@@ -114,6 +124,29 @@ namespace Ryujinx.Graphics.Shader.Translation
             }
         }
 
+        public void SetVertexAsComputeLocalMemories(ShaderStage stage, InputTopology inputTopology)
+        {
+            LocalVertexDataMemoryId = AddMemoryDefinition("local_vertex_data", AggregateType.Array | AggregateType.FP32, Reservations.OutputSizePerInvocation);
+
+            if (stage == ShaderStage.Vertex)
+            {
+                LocalVertexIndexVertexRateMemoryId = AddMemoryDefinition("local_vertex_index_vr", AggregateType.U32);
+                LocalVertexIndexInstanceRateMemoryId = AddMemoryDefinition("local_vertex_index_ir", AggregateType.U32);
+            }
+            else if (stage == ShaderStage.Geometry)
+            {
+                LocalTopologyRemapMemoryId = AddMemoryDefinition("local_topology_remap", AggregateType.Array | AggregateType.U32, inputTopology.ToInputVertices());
+
+                LocalGeometryOutputVertexCountMemoryId = AddMemoryDefinition("local_geometry_output_vertex", AggregateType.U32);
+                LocalGeometryOutputIndexCountMemoryId = AddMemoryDefinition("local_geometry_output_index", AggregateType.U32);
+            }
+        }
+
+        private int AddMemoryDefinition(string name, AggregateType type, int arrayLength = 1)
+        {
+            return Properties.AddLocalMemory(new MemoryDefinition(name, type, arrayLength));
+        }
+
         public int GetConstantBufferBinding(int slot)
         {
             int binding = _cbSlotToBindingMap[slot];
@@ -465,17 +498,22 @@ namespace Ryujinx.Graphics.Shader.Translation
             return descriptors;
         }
 
-        public (int, int) GetCbufSlotAndHandleForTexture(int binding)
+        public bool TryGetCbufSlotAndHandleForTexture(int binding, out int cbufSlot, out int handle)
         {
             foreach ((TextureInfo info, TextureMeta meta) in _usedTextures)
             {
                 if (meta.Binding == binding)
                 {
-                    return (info.CbufSlot, info.Handle);
+                    cbufSlot = info.CbufSlot;
+                    handle = info.Handle;
+
+                    return true;
                 }
             }
 
-            throw new ArgumentException($"Binding {binding} is invalid.");
+            cbufSlot = 0;
+            handle = 0;
+            return false;
         }
 
         private static int FindDescriptorIndex(TextureDescriptor[] array, int binding)

src/Ryujinx.Graphics.Shader/Translation/ResourceReservations.cs

@@ -0,0 +1,186 @@
+using Ryujinx.Graphics.Shader.IntermediateRepresentation;
+using Ryujinx.Graphics.Shader.StructuredIr;
+using System.Collections.Generic;
+using System.Numerics;
+
+namespace Ryujinx.Graphics.Shader.Translation
+{
+    public class ResourceReservations
+    {
+        public const int TfeBuffersCount = 4;
+
+        public const int MaxVertexBufferTextures = 32;
+
+        public int VertexInfoConstantBufferBinding { get; }
+        public int VertexOutputStorageBufferBinding { get; }
+        public int GeometryVertexOutputStorageBufferBinding { get; }
+        public int GeometryIndexOutputStorageBufferBinding { get; }
+        public int IndexBufferTextureBinding { get; }
+        public int TopologyRemapBufferTextureBinding { get; }
+
+        public int ReservedConstantBuffers { get; }
+        public int ReservedStorageBuffers { get; }
+        public int ReservedTextures { get; }
+        public int ReservedImages { get; }
+        public int InputSizePerInvocation { get; }
+        public int OutputSizePerInvocation { get; }
+        public int OutputSizeInBytesPerInvocation => OutputSizePerInvocation * sizeof(uint);
+
+        private readonly int _tfeBufferSbBaseBinding;
+        private readonly int _vertexBufferTextureBaseBinding;
+
+        private readonly Dictionary<IoDefinition, int> _offsets;
+        internal IReadOnlyDictionary<IoDefinition, int> Offsets => _offsets;
+
+        internal ResourceReservations(bool isTransformFeedbackEmulated, bool vertexAsCompute)
+        {
+            // All stages reserves the first constant buffer binding for the support buffer.
+            ReservedConstantBuffers = 1;
+            ReservedStorageBuffers = 0;
+            ReservedTextures = 0;
+            ReservedImages = 0;
+
+            if (isTransformFeedbackEmulated)
+            {
+                // Transform feedback emulation currently always uses 4 storage buffers.
+                _tfeBufferSbBaseBinding = ReservedStorageBuffers;
+                ReservedStorageBuffers = TfeBuffersCount;
+            }
+
+            if (vertexAsCompute)
+            {
+                // One constant buffer reserved for vertex related state.
+                VertexInfoConstantBufferBinding = ReservedConstantBuffers++;
+
+                // One storage buffer for the output vertex data.
+                VertexOutputStorageBufferBinding = ReservedStorageBuffers++;
+
+                // One storage buffer for the output geometry vertex data.
+                GeometryVertexOutputStorageBufferBinding = ReservedStorageBuffers++;
+
+                // One storage buffer for the output geometry index data.
+                GeometryIndexOutputStorageBufferBinding = ReservedStorageBuffers++;
+
+                // Enough textures reserved for all vertex attributes, plus the index buffer.
+                IndexBufferTextureBinding = ReservedTextures;
+                TopologyRemapBufferTextureBinding = ReservedTextures + 1;
+                _vertexBufferTextureBaseBinding = ReservedTextures + 2;
+                ReservedTextures += 2 + MaxVertexBufferTextures;
+            }
+        }
+
+        internal ResourceReservations(
+            IGpuAccessor gpuAccessor,
+            bool isTransformFeedbackEmulated,
+            bool vertexAsCompute,
+            IoUsage? vacInput,
+            IoUsage vacOutput) : this(isTransformFeedbackEmulated, vertexAsCompute)
+        {
+            if (vertexAsCompute)
+            {
+                _offsets = new();
+
+                if (vacInput.HasValue)
+                {
+                    InputSizePerInvocation = FillIoOffsetMap(gpuAccessor, StorageKind.Input, vacInput.Value);
+                }
+
+                OutputSizePerInvocation = FillIoOffsetMap(gpuAccessor, StorageKind.Output, vacOutput);
+            }
+        }
+
+        private int FillIoOffsetMap(IGpuAccessor gpuAccessor, StorageKind storageKind, IoUsage vacUsage)
+        {
+            int offset = 0;
+
+            for (int c = 0; c < 4; c++)
+            {
+                _offsets.Add(new IoDefinition(storageKind, IoVariable.Position, 0, c), offset++);
+            }
+
+            _offsets.Add(new IoDefinition(storageKind, IoVariable.PointSize), offset++);
+
+            int clipDistancesWrittenMap = vacUsage.ClipDistancesWritten;
+
+            while (clipDistancesWrittenMap != 0)
+            {
+                int index = BitOperations.TrailingZeroCount(clipDistancesWrittenMap);
+
+                _offsets.Add(new IoDefinition(storageKind, IoVariable.ClipDistance, 0, index), offset++);
+
+                clipDistancesWrittenMap &= ~(1 << index);
+            }
+
+            if (vacUsage.UsesRtLayer)
+            {
+                _offsets.Add(new IoDefinition(storageKind, IoVariable.Layer), offset++);
+            }
+
+            if (vacUsage.UsesViewportIndex && gpuAccessor.QueryHostSupportsViewportIndexVertexTessellation())
+            {
+                _offsets.Add(new IoDefinition(storageKind, IoVariable.VertexIndex), offset++);
+            }
+
+            if (vacUsage.UsesViewportMask && gpuAccessor.QueryHostSupportsViewportMask())
+            {
+                _offsets.Add(new IoDefinition(storageKind, IoVariable.ViewportMask), offset++);
+            }
+
+            int usedDefinedMap = vacUsage.UserDefinedMap;
+
+            while (usedDefinedMap != 0)
+            {
+                int location = BitOperations.TrailingZeroCount(usedDefinedMap);
+
+                for (int c = 0; c < 4; c++)
+                {
+                    _offsets.Add(new IoDefinition(storageKind, IoVariable.UserDefined, location, c), offset++);
+                }
+
+                usedDefinedMap &= ~(1 << location);
+            }
+
+            return offset;
+        }
+
+        internal static bool IsVectorOrArrayVariable(IoVariable variable)
+        {
+            return variable switch
+            {
+                IoVariable.ClipDistance or
+                IoVariable.Position => true,
+                _ => false,
+            };
+        }
+
+        public int GetTfeBufferStorageBufferBinding(int bufferIndex)
+        {
+            return _tfeBufferSbBaseBinding + bufferIndex;
+        }
+
+        public int GetVertexBufferTextureBinding(int vaLocation)
+        {
+            return _vertexBufferTextureBaseBinding + vaLocation;
+        }
+
+        internal bool TryGetOffset(StorageKind storageKind, int location, int component, out int offset)
+        {
+            return _offsets.TryGetValue(new IoDefinition(storageKind, IoVariable.UserDefined, location, component), out offset);
+        }
+
+        internal bool TryGetOffset(StorageKind storageKind, IoVariable ioVariable, int location, int component, out int offset)
+        {
+            return _offsets.TryGetValue(new IoDefinition(storageKind, ioVariable, location, component), out offset);
+        }
+
+        internal bool TryGetOffset(StorageKind storageKind, IoVariable ioVariable, int component, out int offset)
+        {
+            return _offsets.TryGetValue(new IoDefinition(storageKind, ioVariable, 0, component), out offset);
+        }
+
+        internal bool TryGetOffset(StorageKind storageKind, IoVariable ioVariable, out int offset)
+        {
+            return _offsets.TryGetValue(new IoDefinition(storageKind, ioVariable, 0, 0), out offset);
+        }
+    }
+}

src/Ryujinx.Graphics.Shader/Translation/ShaderDefinitions.cs

@@ -32,7 +32,7 @@ namespace Ryujinx.Graphics.Shader.Translation
         public bool GpPassthrough { get; }
         public bool LastInVertexPipeline { get; set; }
 
-        public int ThreadsPerInputPrimitive { get; }
+        public int ThreadsPerInputPrimitive { get; private set; }
 
         public InputTopology InputTopology => _graphicsState.Topology;
         public OutputTopology OutputTopology { get; }
@@ -97,9 +97,14 @@ namespace Ryujinx.Graphics.Shader.Translation
 
         private readonly Dictionary<TransformFeedbackVariable, TransformFeedbackOutput> _transformFeedbackDefinitions;
 
-        public ShaderDefinitions(ShaderStage stage)
+        public ShaderDefinitions(ShaderStage stage, ulong transformFeedbackVecMap, TransformFeedbackOutput[] transformFeedbackOutputs)
         {
             Stage = stage;
+            TransformFeedbackEnabled = transformFeedbackOutputs != null;
+            _transformFeedbackOutputs = transformFeedbackOutputs;
+            _transformFeedbackDefinitions = new();
+
+            PopulateTransformFeedbackDefinitions(transformFeedbackVecMap, transformFeedbackOutputs);
         }
 
         public ShaderDefinitions(
@@ -142,7 +147,6 @@ namespace Ryujinx.Graphics.Shader.Translation
             bool omapSampleMask,
             bool omapDepth,
             bool supportsScaledVertexFormats,
-            bool transformFeedbackEnabled,
             ulong transformFeedbackVecMap,
             TransformFeedbackOutput[] transformFeedbackOutputs)
         {
@@ -151,17 +155,22 @@ namespace Ryujinx.Graphics.Shader.Translation
             GpPassthrough = gpPassthrough;
             ThreadsPerInputPrimitive = threadsPerInputPrimitive;
             OutputTopology = outputTopology;
-            MaxOutputVertices = maxOutputVertices;
+            MaxOutputVertices = gpPassthrough ? graphicsState.Topology.ToInputVerticesNoAdjacency() : maxOutputVertices;
             ImapTypes = imapTypes;
             OmapTargets = omapTargets;
             OmapSampleMask = omapSampleMask;
             OmapDepth = omapDepth;
             LastInVertexPipeline = stage < ShaderStage.Fragment;
             SupportsScaledVertexFormats = supportsScaledVertexFormats;
-            TransformFeedbackEnabled = transformFeedbackEnabled;
+            TransformFeedbackEnabled = transformFeedbackOutputs != null;
             _transformFeedbackOutputs = transformFeedbackOutputs;
             _transformFeedbackDefinitions = new();
 
+            PopulateTransformFeedbackDefinitions(transformFeedbackVecMap, transformFeedbackOutputs);
+        }
+
+        private void PopulateTransformFeedbackDefinitions(ulong transformFeedbackVecMap, TransformFeedbackOutput[] transformFeedbackOutputs)
+        {
             while (transformFeedbackVecMap != 0)
             {
                 int vecIndex = BitOperations.TrailingZeroCount(transformFeedbackVecMap);
@@ -200,16 +209,6 @@ namespace Ryujinx.Graphics.Shader.Translation
             OaIndexing = true;
         }
 
-        public TransformFeedbackOutput[] GetTransformFeedbackOutputs()
-        {
-            if (!HasTransformFeedbackOutputs())
-            {
-                return null;
-            }
-
-            return _transformFeedbackOutputs;
-        }
-
         public bool TryGetTransformFeedbackOutput(IoVariable ioVariable, int location, int component, out TransformFeedbackOutput transformFeedbackOutput)
         {
             if (!HasTransformFeedbackOutputs())
@@ -320,5 +319,35 @@ namespace Ryujinx.Graphics.Shader.Translation
         {
             return _graphicsState.AttributeTypes[location];
         }
+
+        public bool IsAttributeSint(int location)
+        {
+            return (_graphicsState.AttributeTypes[location] & ~AttributeType.AnyPacked) == AttributeType.Sint;
+        }
+
+        public bool IsAttributePacked(int location)
+        {
+            return _graphicsState.AttributeTypes[location].HasFlag(AttributeType.Packed);
+        }
+
+        public bool IsAttributePackedRgb10A2Signed(int location)
+        {
+            return _graphicsState.AttributeTypes[location].HasFlag(AttributeType.PackedRgb10A2Signed);
+        }
+
+        public int GetGeometryOutputIndexBufferStridePerInstance()
+        {
+            return MaxOutputVertices + OutputTopology switch
+            {
+                OutputTopology.LineStrip => MaxOutputVertices / 2,
+                OutputTopology.TriangleStrip => MaxOutputVertices / 3,
+                _ => MaxOutputVertices,
+            };
+        }
+
+        public int GetGeometryOutputIndexBufferStride()
+        {
+            return GetGeometryOutputIndexBufferStridePerInstance() * ThreadsPerInputPrimitive;
+        }
     }
 }

src/Ryujinx.Graphics.Shader/Translation/ShaderIdentifier.cs

@@ -1,187 +0,0 @@
-using Ryujinx.Graphics.Shader.IntermediateRepresentation;
-using System.Collections.Generic;
-
-namespace Ryujinx.Graphics.Shader.Translation
-{
-    static class ShaderIdentifier
-    {
-        public static ShaderIdentification Identify(
-            IReadOnlyList<Function> functions,
-            IGpuAccessor gpuAccessor,
-            ShaderStage stage,
-            InputTopology inputTopology,
-            out int layerInputAttr)
-        {
-            if (stage == ShaderStage.Geometry &&
-                inputTopology == InputTopology.Triangles &&
-                !gpuAccessor.QueryHostSupportsGeometryShader() &&
-                IsLayerPassthroughGeometryShader(functions, out layerInputAttr))
-            {
-                return ShaderIdentification.GeometryLayerPassthrough;
-            }
-
-            layerInputAttr = 0;
-            return ShaderIdentification.None;
-        }
-
-        private static bool IsLayerPassthroughGeometryShader(IReadOnlyList<Function> functions, out int layerInputAttr)
-        {
-            bool writesLayer = false;
-            layerInputAttr = 0;
-
-            if (functions.Count != 1)
-            {
-                return false;
-            }
-
-            int verticesCount = 0;
-            int totalVerticesCount = 0;
-
-            foreach (BasicBlock block in functions[0].Blocks)
-            {
-                // We are not expecting loops or any complex control flow here, so fail in those cases.
-                if (block.Branch != null && block.Branch.Index <= block.Index)
-                {
-                    return false;
-                }
-
-                foreach (INode node in block.Operations)
-                {
-                    if (node is not Operation operation)
-                    {
-                        continue;
-                    }
-
-                    if (IsResourceWrite(operation.Inst, operation.StorageKind))
-                    {
-                        return false;
-                    }
-
-                    if (operation.Inst == Instruction.Store && operation.StorageKind == StorageKind.Output)
-                    {
-                        Operand src = operation.GetSource(operation.SourcesCount - 1);
-                        Operation srcAttributeAsgOp = null;
-
-                        if (src.Type == OperandType.LocalVariable &&
-                            src.AsgOp is Operation asgOp &&
-                            asgOp.Inst == Instruction.Load &&
-                            asgOp.StorageKind.IsInputOrOutput())
-                        {
-                            if (asgOp.StorageKind != StorageKind.Input)
-                            {
-                                return false;
-                            }
-
-                            srcAttributeAsgOp = asgOp;
-                        }
-
-                        if (srcAttributeAsgOp != null)
-                        {
-                            IoVariable dstAttribute = (IoVariable)operation.GetSource(0).Value;
-                            IoVariable srcAttribute = (IoVariable)srcAttributeAsgOp.GetSource(0).Value;
-
-                            if (dstAttribute == IoVariable.Layer && srcAttribute == IoVariable.UserDefined)
-                            {
-                                if (srcAttributeAsgOp.SourcesCount != 4)
-                                {
-                                    return false;
-                                }
-
-                                writesLayer = true;
-                                layerInputAttr = srcAttributeAsgOp.GetSource(1).Value * 4 + srcAttributeAsgOp.GetSource(3).Value;
-                            }
-                            else
-                            {
-                                if (dstAttribute != srcAttribute)
-                                {
-                                    return false;
-                                }
-
-                                int inputsCount = operation.SourcesCount - 2;
-
-                                if (dstAttribute == IoVariable.UserDefined)
-                                {
-                                    if (operation.GetSource(1).Value != srcAttributeAsgOp.GetSource(1).Value)
-                                    {
-                                        return false;
-                                    }
-
-                                    inputsCount--;
-                                }
-
-                                for (int i = 0; i < inputsCount; i++)
-                                {
-                                    int dstIndex = operation.SourcesCount - 2 - i;
-                                    int srcIndex = srcAttributeAsgOp.SourcesCount - 1 - i;
-
-                                    if ((dstIndex | srcIndex) < 0)
-                                    {
-                                        return false;
-                                    }
-
-                                    if (operation.GetSource(dstIndex).Type != OperandType.Constant ||
-                                        srcAttributeAsgOp.GetSource(srcIndex).Type != OperandType.Constant ||
-                                        operation.GetSource(dstIndex).Value != srcAttributeAsgOp.GetSource(srcIndex).Value)
-                                    {
-                                        return false;
-                                    }
-                                }
-                            }
-                        }
-                        else if (src.Type == OperandType.Constant)
-                        {
-                            int dstComponent = operation.GetSource(operation.SourcesCount - 2).Value;
-                            float expectedValue = dstComponent == 3 ? 1f : 0f;
-
-                            if (src.AsFloat() != expectedValue)
-                            {
-                                return false;
-                            }
-                        }
-                        else
-                        {
-                            return false;
-                        }
-                    }
-                    else if (operation.Inst == Instruction.EmitVertex)
-                    {
-                        verticesCount++;
-                    }
-                    else if (operation.Inst == Instruction.EndPrimitive)
-                    {
-                        totalVerticesCount += verticesCount;
-                        verticesCount = 0;
-                    }
-                }
-            }
-
-            return totalVerticesCount + verticesCount == 3 && writesLayer;
-        }
-
-        private static bool IsResourceWrite(Instruction inst, StorageKind storageKind)
-        {
-            switch (inst)
-            {
-                case Instruction.AtomicAdd:
-                case Instruction.AtomicAnd:
-                case Instruction.AtomicCompareAndSwap:
-                case Instruction.AtomicMaxS32:
-                case Instruction.AtomicMaxU32:
-                case Instruction.AtomicMinS32:
-                case Instruction.AtomicMinU32:
-                case Instruction.AtomicOr:
-                case Instruction.AtomicSwap:
-                case Instruction.AtomicXor:
-                case Instruction.ImageAtomic:
-                case Instruction.ImageStore:
-                    return true;
-                case Instruction.Store:
-                    return storageKind == StorageKind.StorageBuffer ||
-                           storageKind == StorageKind.SharedMemory ||
-                           storageKind == StorageKind.LocalMemory;
-            }
-
-            return false;
-        }
-    }
-}

src/Ryujinx.Graphics.Shader/Translation/TransformContext.cs

@@ -6,6 +6,7 @@ namespace Ryujinx.Graphics.Shader.Translation
     {
         public readonly HelperFunctionManager Hfm;
         public readonly BasicBlock[] Blocks;
+        public readonly ShaderDefinitions Definitions;
         public readonly ResourceManager ResourceManager;
         public readonly IGpuAccessor GpuAccessor;
         public readonly TargetLanguage TargetLanguage;
@@ -15,6 +16,7 @@ namespace Ryujinx.Graphics.Shader.Translation
         public TransformContext(
             HelperFunctionManager hfm,
             BasicBlock[] blocks,
+            ShaderDefinitions definitions,
             ResourceManager resourceManager,
             IGpuAccessor gpuAccessor,
             TargetLanguage targetLanguage,
@@ -23,6 +25,7 @@ namespace Ryujinx.Graphics.Shader.Translation
         {
             Hfm = hfm;
             Blocks = blocks;
+            Definitions = definitions;
             ResourceManager = resourceManager;
             GpuAccessor = gpuAccessor;
             TargetLanguage = targetLanguage;

src/Ryujinx.Graphics.Shader/Translation/Transforms/GeometryToCompute.cs

@@ -0,0 +1,378 @@
+using Ryujinx.Graphics.Shader.IntermediateRepresentation;
+using Ryujinx.Graphics.Shader.Translation.Optimizations;
+using System.Collections.Generic;
+
+using static Ryujinx.Graphics.Shader.IntermediateRepresentation.OperandHelper;
+
+namespace Ryujinx.Graphics.Shader.Translation.Transforms
+{
+    class GeometryToCompute : ITransformPass
+    {
+        public static bool IsEnabled(IGpuAccessor gpuAccessor, ShaderStage stage, TargetLanguage targetLanguage, FeatureFlags usedFeatures)
+        {
+            return usedFeatures.HasFlag(FeatureFlags.VtgAsCompute);
+        }
+
+        public static LinkedListNode<INode> RunPass(TransformContext context, LinkedListNode<INode> node)
+        {
+            if (context.Definitions.Stage != ShaderStage.Geometry)
+            {
+                return node;
+            }
+
+            Operation operation = (Operation)node.Value;
+
+            LinkedListNode<INode> newNode = node;
+
+            switch (operation.Inst)
+            {
+                case Instruction.EmitVertex:
+                    newNode = GenerateEmitVertex(context.Definitions, context.ResourceManager, node);
+                    break;
+                case Instruction.EndPrimitive:
+                    newNode = GenerateEndPrimitive(context.Definitions, context.ResourceManager, node);
+                    break;
+                case Instruction.Load:
+                    if (operation.StorageKind == StorageKind.Input)
+                    {
+                        IoVariable ioVariable = (IoVariable)operation.GetSource(0).Value;
+
+                        if (TryGetOffset(context.ResourceManager, operation, StorageKind.Input, out int inputOffset))
+                        {
+                            Operand primVertex = ioVariable == IoVariable.UserDefined
+                                ? operation.GetSource(2)
+                                : operation.GetSource(1);
+
+                            Operand vertexElemOffset = GenerateVertexOffset(context.ResourceManager, node, inputOffset, primVertex);
+
+                            newNode = node.List.AddBefore(node, new Operation(
+                                Instruction.Load,
+                                StorageKind.StorageBuffer,
+                                operation.Dest,
+                                new[] { Const(context.ResourceManager.Reservations.VertexOutputStorageBufferBinding), Const(0), vertexElemOffset }));
+                        }
+                        else
+                        {
+                            switch (ioVariable)
+                            {
+                                case IoVariable.InvocationId:
+                                    newNode = GenerateInvocationId(node, operation.Dest);
+                                    break;
+                                case IoVariable.PrimitiveId:
+                                    newNode = GeneratePrimitiveId(context.ResourceManager, node, operation.Dest);
+                                    break;
+                                case IoVariable.GlobalId:
+                                case IoVariable.SubgroupEqMask:
+                                case IoVariable.SubgroupGeMask:
+                                case IoVariable.SubgroupGtMask:
+                                case IoVariable.SubgroupLaneId:
+                                case IoVariable.SubgroupLeMask:
+                                case IoVariable.SubgroupLtMask:
+                                    // Those are valid or expected for geometry shaders.
+                                    break;
+                                default:
+                                    context.GpuAccessor.Log($"Invalid input \"{ioVariable}\".");
+                                    break;
+                            }
+                        }
+                    }
+                    else if (operation.StorageKind == StorageKind.Output)
+                    {
+                        if (TryGetOffset(context.ResourceManager, operation, StorageKind.Output, out int outputOffset))
+                        {
+                            newNode = node.List.AddBefore(node, new Operation(
+                                Instruction.Load,
+                                StorageKind.LocalMemory,
+                                operation.Dest,
+                                new[] { Const(context.ResourceManager.LocalVertexDataMemoryId), Const(outputOffset) }));
+                        }
+                        else
+                        {
+                            context.GpuAccessor.Log($"Invalid output \"{(IoVariable)operation.GetSource(0).Value}\".");
+                        }
+                    }
+                    break;
+                case Instruction.Store:
+                    if (operation.StorageKind == StorageKind.Output)
+                    {
+                        if (TryGetOffset(context.ResourceManager, operation, StorageKind.Output, out int outputOffset))
+                        {
+                            Operand value = operation.GetSource(operation.SourcesCount - 1);
+
+                            newNode = node.List.AddBefore(node, new Operation(
+                                Instruction.Store,
+                                StorageKind.LocalMemory,
+                                (Operand)null,
+                                new[] { Const(context.ResourceManager.LocalVertexDataMemoryId), Const(outputOffset), value }));
+                        }
+                        else
+                        {
+                            context.GpuAccessor.Log($"Invalid output \"{(IoVariable)operation.GetSource(0).Value}\".");
+                        }
+                    }
+                    break;
+            }
+
+            if (newNode != node)
+            {
+                Utils.DeleteNode(node, operation);
+            }
+
+            return newNode;
+        }
+
+        private static LinkedListNode<INode> GenerateEmitVertex(ShaderDefinitions definitions, ResourceManager resourceManager, LinkedListNode<INode> node)
+        {
+            int vbOutputBinding = resourceManager.Reservations.GeometryVertexOutputStorageBufferBinding;
+            int ibOutputBinding = resourceManager.Reservations.GeometryIndexOutputStorageBufferBinding;
+            int stride = resourceManager.Reservations.OutputSizePerInvocation;
+
+            Operand outputPrimVertex = IncrementLocalMemory(node, resourceManager.LocalGeometryOutputVertexCountMemoryId);
+            Operand baseVertexOffset = GenerateBaseOffset(
+                resourceManager,
+                node,
+                definitions.MaxOutputVertices * definitions.ThreadsPerInputPrimitive,
+                definitions.ThreadsPerInputPrimitive);
+            Operand outputBaseVertex = Local();
+            node.List.AddBefore(node, new Operation(Instruction.Add, outputBaseVertex, new[] { baseVertexOffset, outputPrimVertex }));
+
+            Operand outputPrimIndex = IncrementLocalMemory(node, resourceManager.LocalGeometryOutputIndexCountMemoryId);
+            Operand baseIndexOffset = GenerateBaseOffset(
+                resourceManager,
+                node,
+                definitions.GetGeometryOutputIndexBufferStride(),
+                definitions.ThreadsPerInputPrimitive);
+            Operand outputBaseIndex = Local();
+            node.List.AddBefore(node, new Operation(Instruction.Add, outputBaseIndex, new[] { baseIndexOffset, outputPrimIndex }));
+
+            node.List.AddBefore(node, new Operation(
+                Instruction.Store,
+                StorageKind.StorageBuffer,
+                null,
+                new[] { Const(ibOutputBinding), Const(0), outputBaseIndex, outputBaseVertex }));
+
+            Operand baseOffset = Local();
+            node.List.AddBefore(node, new Operation(Instruction.Multiply, baseOffset, new[] { outputBaseVertex, Const(stride) }));
+
+            LinkedListNode<INode> newNode = node;
+
+            for (int offset = 0; offset < stride; offset++)
+            {
+                Operand vertexOffset;
+
+                if (offset > 0)
+                {
+                    vertexOffset = Local();
+                    node.List.AddBefore(node, new Operation(Instruction.Add, vertexOffset, new[] { baseOffset, Const(offset) }));
+                }
+                else
+                {
+                    vertexOffset = baseOffset;
+                }
+
+                Operand value = Local();
+                node.List.AddBefore(node, new Operation(
+                    Instruction.Load,
+                    StorageKind.LocalMemory,
+                    value,
+                    new[] { Const(resourceManager.LocalVertexDataMemoryId), Const(offset) }));
+
+                newNode = node.List.AddBefore(node, new Operation(
+                    Instruction.Store,
+                    StorageKind.StorageBuffer,
+                    null,
+                    new[] { Const(vbOutputBinding), Const(0), vertexOffset, value }));
+            }
+
+            return newNode;
+        }
+
+        private static LinkedListNode<INode> GenerateEndPrimitive(ShaderDefinitions definitions, ResourceManager resourceManager, LinkedListNode<INode> node)
+        {
+            int ibOutputBinding = resourceManager.Reservations.GeometryIndexOutputStorageBufferBinding;
+
+            Operand outputPrimIndex = IncrementLocalMemory(node, resourceManager.LocalGeometryOutputIndexCountMemoryId);
+            Operand baseIndexOffset = GenerateBaseOffset(
+                resourceManager,
+                node,
+                definitions.GetGeometryOutputIndexBufferStride(),
+                definitions.ThreadsPerInputPrimitive);
+            Operand outputBaseIndex = Local();
+            node.List.AddBefore(node, new Operation(Instruction.Add, outputBaseIndex, new[] { baseIndexOffset, outputPrimIndex }));
+
+            return node.List.AddBefore(node, new Operation(
+                Instruction.Store,
+                StorageKind.StorageBuffer,
+                null,
+                new[] { Const(ibOutputBinding), Const(0), outputBaseIndex, Const(-1) }));
+        }
+
+        private static Operand GenerateBaseOffset(ResourceManager resourceManager, LinkedListNode<INode> node, int stride, int threadsPerInputPrimitive)
+        {
+            Operand primitiveId = Local();
+            GeneratePrimitiveId(resourceManager, node, primitiveId);
+
+            Operand baseOffset = Local();
+            node.List.AddBefore(node, new Operation(Instruction.Multiply, baseOffset, new[] { primitiveId, Const(stride) }));
+
+            Operand invocationId = Local();
+            GenerateInvocationId(node, invocationId);
+
+            Operand invocationOffset = Local();
+            node.List.AddBefore(node, new Operation(Instruction.Multiply, invocationOffset, new[] { invocationId, Const(stride / threadsPerInputPrimitive) }));
+
+            Operand combinedOffset = Local();
+            node.List.AddBefore(node, new Operation(Instruction.Add, combinedOffset, new[] { baseOffset, invocationOffset }));
+
+            return combinedOffset;
+        }
+
+        private static Operand IncrementLocalMemory(LinkedListNode<INode> node, int memoryId)
+        {
+            Operand oldValue = Local();
+            node.List.AddBefore(node, new Operation(
+                Instruction.Load,
+                StorageKind.LocalMemory,
+                oldValue,
+                new[] { Const(memoryId) }));
+
+            Operand newValue = Local();
+            node.List.AddBefore(node, new Operation(Instruction.Add, newValue, new[] { oldValue, Const(1) }));
+
+            node.List.AddBefore(node, new Operation(Instruction.Store, StorageKind.LocalMemory, null, new[] { Const(memoryId), newValue }));
+
+            return oldValue;
+        }
+
+        private static Operand GenerateVertexOffset(
+            ResourceManager resourceManager,
+            LinkedListNode<INode> node,
+            int elementOffset,
+            Operand primVertex)
+        {
+            int vertexInfoCbBinding = resourceManager.Reservations.VertexInfoConstantBufferBinding;
+
+            Operand vertexCount = Local();
+            node.List.AddBefore(node, new Operation(
+                Instruction.Load,
+                StorageKind.ConstantBuffer,
+                vertexCount,
+                new[] { Const(vertexInfoCbBinding), Const((int)VertexInfoBufferField.VertexCounts), Const(0) }));
+
+            Operand primInputVertex = Local();
+            node.List.AddBefore(node, new Operation(
+                Instruction.Load,
+                StorageKind.LocalMemory,
+                primInputVertex,
+                new[] { Const(resourceManager.LocalTopologyRemapMemoryId), primVertex }));
+
+            Operand instanceIndex = Local();
+            node.List.AddBefore(node, new Operation(
+                Instruction.Load,
+                StorageKind.Input,
+                instanceIndex,
+                new[] { Const((int)IoVariable.GlobalId), Const(1) }));
+
+            Operand baseVertex = Local();
+            node.List.AddBefore(node, new Operation(Instruction.Multiply, baseVertex, new[] { instanceIndex, vertexCount }));
+
+            Operand vertexIndex = Local();
+            node.List.AddBefore(node, new Operation(Instruction.Add, vertexIndex, new[] { baseVertex, primInputVertex }));
+
+            Operand vertexBaseOffset = Local();
+            node.List.AddBefore(node, new Operation(
+                Instruction.Multiply,
+                vertexBaseOffset,
+                new[] { vertexIndex, Const(resourceManager.Reservations.InputSizePerInvocation) }));
+
+            Operand vertexElemOffset;
+
+            if (elementOffset != 0)
+            {
+                vertexElemOffset = Local();
+
+                node.List.AddBefore(node, new Operation(Instruction.Add, vertexElemOffset, new[] { vertexBaseOffset, Const(elementOffset) }));
+            }
+            else
+            {
+                vertexElemOffset = vertexBaseOffset;
+            }
+
+            return vertexElemOffset;
+        }
+
+        private static LinkedListNode<INode> GeneratePrimitiveId(ResourceManager resourceManager, LinkedListNode<INode> node, Operand dest)
+        {
+            int vertexInfoCbBinding = resourceManager.Reservations.VertexInfoConstantBufferBinding;
+
+            Operand vertexCount = Local();
+            node.List.AddBefore(node, new Operation(
+                Instruction.Load,
+                StorageKind.ConstantBuffer,
+                vertexCount,
+                new[] { Const(vertexInfoCbBinding), Const((int)VertexInfoBufferField.VertexCounts), Const(0) }));
+
+            Operand vertexIndex = Local();
+            node.List.AddBefore(node, new Operation(
+                Instruction.Load,
+                StorageKind.Input,
+                vertexIndex,
+                new[] { Const((int)IoVariable.GlobalId), Const(0) }));
+
+            Operand instanceIndex = Local();
+            node.List.AddBefore(node, new Operation(
+                Instruction.Load,
+                StorageKind.Input,
+                instanceIndex,
+                new[] { Const((int)IoVariable.GlobalId), Const(1) }));
+
+            Operand baseVertex = Local();
+            node.List.AddBefore(node, new Operation(Instruction.Multiply, baseVertex, new[] { instanceIndex, vertexCount }));
+
+            return node.List.AddBefore(node, new Operation(Instruction.Add, dest, new[] { baseVertex, vertexIndex }));
+        }
+
+        private static LinkedListNode<INode> GenerateInvocationId(LinkedListNode<INode> node, Operand dest)
+        {
+            return node.List.AddBefore(node, new Operation(
+                Instruction.Load,
+                StorageKind.Input,
+                dest,
+                new[] { Const((int)IoVariable.GlobalId), Const(2) }));
+        }
+
+        private static bool TryGetOffset(ResourceManager resourceManager, Operation operation, StorageKind storageKind, out int outputOffset)
+        {
+            bool isStore = operation.Inst == Instruction.Store;
+
+            IoVariable ioVariable = (IoVariable)operation.GetSource(0).Value;
+
+            bool isValidOutput;
+
+            if (ioVariable == IoVariable.UserDefined)
+            {
+                int lastIndex = operation.SourcesCount - (isStore ? 2 : 1);
+
+                int location = operation.GetSource(1).Value;
+                int component = operation.GetSource(lastIndex).Value;
+
+                isValidOutput = resourceManager.Reservations.TryGetOffset(storageKind, location, component, out outputOffset);
+            }
+            else
+            {
+                if (ResourceReservations.IsVectorOrArrayVariable(ioVariable))
+                {
+                    int component = operation.GetSource(operation.SourcesCount - (isStore ? 2 : 1)).Value;
+
+                    isValidOutput = resourceManager.Reservations.TryGetOffset(storageKind, ioVariable, component, out outputOffset);
+                }
+                else
+                {
+                    isValidOutput = resourceManager.Reservations.TryGetOffset(storageKind, ioVariable, out outputOffset);
+                }
+            }
+
+            return isValidOutput;
+        }
+    }
+}

src/Ryujinx.Graphics.Shader/Translation/Transforms/TexturePass.cs

@@ -153,15 +153,13 @@ namespace Ryujinx.Graphics.Shader.Translation.Transforms
 
             bool isBindless = (texOp.Flags & TextureFlags.Bindless) != 0;
 
-            if (isBindless)
+            if (isBindless || !resourceManager.TryGetCbufSlotAndHandleForTexture(texOp.Binding, out int cbufSlot, out int handle))
             {
                 return node;
             }
 
             bool intCoords = (texOp.Flags & TextureFlags.IntCoords) != 0;
 
-            (int cbufSlot, int handle) = resourceManager.GetCbufSlotAndHandleForTexture(texOp.Binding);
-
             bool isCoordNormalized = gpuAccessor.QueryTextureCoordNormalized(handle, cbufSlot);
 
             if (isCoordNormalized || intCoords)
@@ -607,13 +605,11 @@ namespace Ryujinx.Graphics.Shader.Translation.Transforms
 
             // We can't query the format of a bindless texture,
             // because the handle is unknown, it can have any format.
-            if (texOp.Flags.HasFlag(TextureFlags.Bindless))
+            if (texOp.Flags.HasFlag(TextureFlags.Bindless) || !resourceManager.TryGetCbufSlotAndHandleForTexture(texOp.Binding, out int cbufSlot, out int handle))
             {
                 return node;
             }
 
-            (int cbufSlot, int handle) = resourceManager.GetCbufSlotAndHandleForTexture(texOp.Binding);
-
             TextureFormat format = gpuAccessor.QueryTextureFormat(handle, cbufSlot);
 
             int maxPositive = format switch

src/Ryujinx.Graphics.Shader/Translation/Transforms/TransformPasses.cs

@@ -14,6 +14,8 @@ namespace Ryujinx.Graphics.Shader.Translation.Transforms
             RunPass<SharedStoreSmallIntCas>(context);
             RunPass<SharedAtomicSignedCas>(context);
             RunPass<ShufflePass>(context);
+            RunPass<VertexToCompute>(context);
+            RunPass<GeometryToCompute>(context);
         }
 
         private static void RunPass<T>(TransformContext context) where T : ITransformPass

src/Ryujinx.Graphics.Shader/Translation/Transforms/VertexToCompute.cs

@@ -0,0 +1,364 @@
+using Ryujinx.Graphics.Shader.IntermediateRepresentation;
+using Ryujinx.Graphics.Shader.Translation.Optimizations;
+using System.Collections.Generic;
+
+using static Ryujinx.Graphics.Shader.IntermediateRepresentation.OperandHelper;
+
+namespace Ryujinx.Graphics.Shader.Translation.Transforms
+{
+    class VertexToCompute : ITransformPass
+    {
+        public static bool IsEnabled(IGpuAccessor gpuAccessor, ShaderStage stage, TargetLanguage targetLanguage, FeatureFlags usedFeatures)
+        {
+            return usedFeatures.HasFlag(FeatureFlags.VtgAsCompute);
+        }
+
+        public static LinkedListNode<INode> RunPass(TransformContext context, LinkedListNode<INode> node)
+        {
+            if (context.Definitions.Stage != ShaderStage.Vertex)
+            {
+                return node;
+            }
+
+            Operation operation = (Operation)node.Value;
+
+            LinkedListNode<INode> newNode = node;
+
+            if (operation.Inst == Instruction.Load && operation.StorageKind == StorageKind.Input)
+            {
+                Operand dest = operation.Dest;
+
+                switch ((IoVariable)operation.GetSource(0).Value)
+                {
+                    case IoVariable.BaseInstance:
+                        newNode = GenerateBaseInstanceLoad(context.ResourceManager, node, dest);
+                        break;
+                    case IoVariable.BaseVertex:
+                        newNode = GenerateBaseVertexLoad(context.ResourceManager, node, dest);
+                        break;
+                    case IoVariable.InstanceId:
+                        newNode = GenerateInstanceIdLoad(node, dest);
+                        break;
+                    case IoVariable.InstanceIndex:
+                        newNode = GenerateInstanceIndexLoad(context.ResourceManager, node, dest);
+                        break;
+                    case IoVariable.VertexId:
+                    case IoVariable.VertexIndex:
+                        newNode = GenerateVertexIndexLoad(context.ResourceManager, node, dest);
+                        break;
+                    case IoVariable.UserDefined:
+                        int location = operation.GetSource(1).Value;
+                        int component = operation.GetSource(2).Value;
+
+                        if (context.Definitions.IsAttributePacked(location))
+                        {
+                            bool needsSextNorm = context.Definitions.IsAttributePackedRgb10A2Signed(location);
+
+                            Operand temp = needsSextNorm ? Local() : dest;
+                            Operand vertexElemOffset = GenerateVertexOffset(context.ResourceManager, node, location, 0);
+
+                            newNode = node.List.AddBefore(node, new TextureOperation(
+                                Instruction.TextureSample,
+                                SamplerType.TextureBuffer,
+                                TextureFormat.Unknown,
+                                TextureFlags.IntCoords,
+                                context.ResourceManager.Reservations.GetVertexBufferTextureBinding(location),
+                                1 << component,
+                                new[] { temp },
+                                new[] { vertexElemOffset }));
+
+                            if (needsSextNorm)
+                            {
+                                bool sint = context.Definitions.IsAttributeSint(location);
+                                CopySignExtendedNormalized(node, component == 3 ? 2 : 10, !sint, dest, temp);
+                            }
+                        }
+                        else
+                        {
+                            Operand temp = component > 0 ? Local() : dest;
+                            Operand vertexElemOffset = GenerateVertexOffset(context.ResourceManager, node, location, component);
+
+                            newNode = node.List.AddBefore(node, new TextureOperation(
+                                Instruction.TextureSample,
+                                SamplerType.TextureBuffer,
+                                TextureFormat.Unknown,
+                                TextureFlags.IntCoords,
+                                context.ResourceManager.Reservations.GetVertexBufferTextureBinding(location),
+                                1,
+                                new[] { temp },
+                                new[] { vertexElemOffset }));
+
+                            if (component > 0)
+                            {
+                                newNode = CopyMasked(context.ResourceManager, newNode, location, component, dest, temp);
+                            }
+                        }
+                        break;
+                    case IoVariable.GlobalId:
+                    case IoVariable.SubgroupEqMask:
+                    case IoVariable.SubgroupGeMask:
+                    case IoVariable.SubgroupGtMask:
+                    case IoVariable.SubgroupLaneId:
+                    case IoVariable.SubgroupLeMask:
+                    case IoVariable.SubgroupLtMask:
+                        // Those are valid or expected for vertex shaders.
+                        break;
+                    default:
+                        context.GpuAccessor.Log($"Invalid input \"{(IoVariable)operation.GetSource(0).Value}\".");
+                        break;
+                }
+            }
+            else if (operation.Inst == Instruction.Load && operation.StorageKind == StorageKind.Output)
+            {
+                if (TryGetOutputOffset(context.ResourceManager, operation, out int outputOffset))
+                {
+                    newNode = node.List.AddBefore(node, new Operation(
+                        Instruction.Load,
+                        StorageKind.LocalMemory,
+                        operation.Dest,
+                        new[] { Const(context.ResourceManager.LocalVertexDataMemoryId), Const(outputOffset) }));
+                }
+                else
+                {
+                    context.GpuAccessor.Log($"Invalid output \"{(IoVariable)operation.GetSource(0).Value}\".");
+                }
+            }
+            else if (operation.Inst == Instruction.Store && operation.StorageKind == StorageKind.Output)
+            {
+                if (TryGetOutputOffset(context.ResourceManager, operation, out int outputOffset))
+                {
+                    Operand value = operation.GetSource(operation.SourcesCount - 1);
+
+                    newNode = node.List.AddBefore(node, new Operation(
+                        Instruction.Store,
+                        StorageKind.LocalMemory,
+                        (Operand)null,
+                        new[] { Const(context.ResourceManager.LocalVertexDataMemoryId), Const(outputOffset), value }));
+                }
+                else
+                {
+                    context.GpuAccessor.Log($"Invalid output \"{(IoVariable)operation.GetSource(0).Value}\".");
+                }
+            }
+
+            if (newNode != node)
+            {
+                Utils.DeleteNode(node, operation);
+            }
+
+            return newNode;
+        }
+
+        private static Operand GenerateVertexOffset(ResourceManager resourceManager, LinkedListNode<INode> node, int location, int component)
+        {
+            int vertexInfoCbBinding = resourceManager.Reservations.VertexInfoConstantBufferBinding;
+
+            Operand vertexIdVr = Local();
+            GenerateVertexIdVertexRateLoad(resourceManager, node, vertexIdVr);
+
+            Operand vertexIdIr = Local();
+            GenerateVertexIdInstanceRateLoad(resourceManager, node, vertexIdIr);
+
+            Operand attributeOffset = Local();
+            node.List.AddBefore(node, new Operation(
+                Instruction.Load,
+                StorageKind.ConstantBuffer,
+                attributeOffset,
+                new[] { Const(vertexInfoCbBinding), Const((int)VertexInfoBufferField.VertexOffsets), Const(location), Const(0) }));
+
+            Operand isInstanceRate = Local();
+            node.List.AddBefore(node, new Operation(
+                Instruction.Load,
+                StorageKind.ConstantBuffer,
+                isInstanceRate,
+                new[] { Const(vertexInfoCbBinding), Const((int)VertexInfoBufferField.VertexOffsets), Const(location), Const(1) }));
+
+            Operand vertexId = Local();
+            node.List.AddBefore(node, new Operation(
+                Instruction.ConditionalSelect,
+                vertexId,
+                new[] { isInstanceRate, vertexIdIr, vertexIdVr }));
+
+            Operand vertexStride = Local();
+            node.List.AddBefore(node, new Operation(
+                Instruction.Load,
+                StorageKind.ConstantBuffer,
+                vertexStride,
+                new[] { Const(vertexInfoCbBinding), Const((int)VertexInfoBufferField.VertexStrides), Const(location), Const(0) }));
+
+            Operand vertexBaseOffset = Local();
+            node.List.AddBefore(node, new Operation(Instruction.Multiply, vertexBaseOffset, new[] { vertexId, vertexStride }));
+
+            Operand vertexOffset = Local();
+            node.List.AddBefore(node, new Operation(Instruction.Add, vertexOffset, new[] { attributeOffset, vertexBaseOffset }));
+
+            Operand vertexElemOffset;
+
+            if (component != 0)
+            {
+                vertexElemOffset = Local();
+
+                node.List.AddBefore(node, new Operation(Instruction.Add, vertexElemOffset, new[] { vertexOffset, Const(component) }));
+            }
+            else
+            {
+                vertexElemOffset = vertexOffset;
+            }
+
+            return vertexElemOffset;
+        }
+
+        private static LinkedListNode<INode> CopySignExtendedNormalized(LinkedListNode<INode> node, int bits, bool normalize, Operand dest, Operand src)
+        {
+            Operand leftShifted = Local();
+            node = node.List.AddAfter(node, new Operation(
+                Instruction.ShiftLeft,
+                leftShifted,
+                new[] { src, Const(32 - bits) }));
+
+            Operand rightShifted = normalize ? Local() : dest;
+            node = node.List.AddAfter(node, new Operation(
+                Instruction.ShiftRightS32,
+                rightShifted,
+                new[] { leftShifted, Const(32 - bits) }));
+
+            if (normalize)
+            {
+                Operand asFloat = Local();
+                node = node.List.AddAfter(node, new Operation(Instruction.ConvertS32ToFP32, asFloat, new[] { rightShifted }));
+                node = node.List.AddAfter(node, new Operation(
+                    Instruction.FP32 | Instruction.Multiply,
+                    dest,
+                    new[] { asFloat, ConstF(1f / (1 << (bits - 1))) }));
+            }
+
+            return node;
+        }
+
+        private static LinkedListNode<INode> CopyMasked(
+            ResourceManager resourceManager,
+            LinkedListNode<INode> node,
+            int location,
+            int component,
+            Operand dest,
+            Operand src)
+        {
+            Operand componentExists = Local();
+            int vertexInfoCbBinding = resourceManager.Reservations.VertexInfoConstantBufferBinding;
+            node = node.List.AddAfter(node, new Operation(
+                Instruction.Load,
+                StorageKind.ConstantBuffer,
+                componentExists,
+                new[] { Const(vertexInfoCbBinding), Const((int)VertexInfoBufferField.VertexStrides), Const(location), Const(component) }));
+
+            return node.List.AddAfter(node, new Operation(
+                Instruction.ConditionalSelect,
+                dest,
+                new[] { componentExists, src, ConstF(component == 3 ? 1f : 0f) }));
+        }
+
+        private static LinkedListNode<INode> GenerateBaseVertexLoad(ResourceManager resourceManager, LinkedListNode<INode> node, Operand dest)
+        {
+            int vertexInfoCbBinding = resourceManager.Reservations.VertexInfoConstantBufferBinding;
+
+            return node.List.AddBefore(node, new Operation(
+                Instruction.Load,
+                StorageKind.ConstantBuffer,
+                dest,
+                new[] { Const(vertexInfoCbBinding), Const((int)VertexInfoBufferField.VertexCounts), Const(2) }));
+        }
+
+        private static LinkedListNode<INode> GenerateBaseInstanceLoad(ResourceManager resourceManager, LinkedListNode<INode> node, Operand dest)
+        {
+            int vertexInfoCbBinding = resourceManager.Reservations.VertexInfoConstantBufferBinding;
+
+            return node.List.AddBefore(node, new Operation(
+                Instruction.Load,
+                StorageKind.ConstantBuffer,
+                dest,
+                new[] { Const(vertexInfoCbBinding), Const((int)VertexInfoBufferField.VertexCounts), Const(3) }));
+        }
+
+        private static LinkedListNode<INode> GenerateVertexIndexLoad(ResourceManager resourceManager, LinkedListNode<INode> node, Operand dest)
+        {
+            Operand baseVertex = Local();
+            Operand vertexId = Local();
+
+            GenerateBaseVertexLoad(resourceManager, node, baseVertex);
+            GenerateVertexIdVertexRateLoad(resourceManager, node, vertexId);
+
+            return node.List.AddBefore(node, new Operation(Instruction.Add, dest, new[] { baseVertex, vertexId }));
+        }
+
+        private static LinkedListNode<INode> GenerateInstanceIndexLoad(ResourceManager resourceManager, LinkedListNode<INode> node, Operand dest)
+        {
+            Operand baseInstance = Local();
+            Operand instanceId = Local();
+
+            GenerateBaseInstanceLoad(resourceManager, node, baseInstance);
+
+            node.List.AddBefore(node, new Operation(
+                Instruction.Load,
+                StorageKind.Input,
+                instanceId,
+                new[] { Const((int)IoVariable.GlobalId), Const(1) }));
+
+            return node.List.AddBefore(node, new Operation(Instruction.Add, dest, new[] { baseInstance, instanceId }));
+        }
+
+        private static LinkedListNode<INode> GenerateVertexIdVertexRateLoad(ResourceManager resourceManager, LinkedListNode<INode> node, Operand dest)
+        {
+            Operand[] sources = new Operand[] { Const(resourceManager.LocalVertexIndexVertexRateMemoryId) };
+
+            return node.List.AddBefore(node, new Operation(Instruction.Load, StorageKind.LocalMemory, dest, sources));
+        }
+
+        private static LinkedListNode<INode> GenerateVertexIdInstanceRateLoad(ResourceManager resourceManager, LinkedListNode<INode> node, Operand dest)
+        {
+            Operand[] sources = new Operand[] { Const(resourceManager.LocalVertexIndexInstanceRateMemoryId) };
+
+            return node.List.AddBefore(node, new Operation(Instruction.Load, StorageKind.LocalMemory, dest, sources));
+        }
+
+        private static LinkedListNode<INode> GenerateInstanceIdLoad(LinkedListNode<INode> node, Operand dest)
+        {
+            Operand[] sources = new Operand[] { Const((int)IoVariable.GlobalId), Const(1) };
+
+            return node.List.AddBefore(node, new Operation(Instruction.Load, StorageKind.Input, dest, sources));
+        }
+
+        private static bool TryGetOutputOffset(ResourceManager resourceManager, Operation operation, out int outputOffset)
+        {
+            bool isStore = operation.Inst == Instruction.Store;
+
+            IoVariable ioVariable = (IoVariable)operation.GetSource(0).Value;
+
+            bool isValidOutput;
+
+            if (ioVariable == IoVariable.UserDefined)
+            {
+                int lastIndex = operation.SourcesCount - (isStore ? 2 : 1);
+
+                int location = operation.GetSource(1).Value;
+                int component = operation.GetSource(lastIndex).Value;
+
+                isValidOutput = resourceManager.Reservations.TryGetOffset(StorageKind.Output, location, component, out outputOffset);
+            }
+            else
+            {
+                if (ResourceReservations.IsVectorOrArrayVariable(ioVariable))
+                {
+                    int component = operation.GetSource(operation.SourcesCount - (isStore ? 2 : 1)).Value;
+
+                    isValidOutput = resourceManager.Reservations.TryGetOffset(StorageKind.Output, ioVariable, component, out outputOffset);
+                }
+                else
+                {
+                    isValidOutput = resourceManager.Reservations.TryGetOffset(StorageKind.Output, ioVariable, out outputOffset);
+                }
+            }
+
+            return isValidOutput;
+        }
+    }
+}

src/Ryujinx.Graphics.Shader/Translation/Translator.cs

@@ -77,12 +77,32 @@ namespace Ryujinx.Graphics.Shader.Translation
         }
 
         private static ShaderDefinitions CreateGraphicsDefinitions(IGpuAccessor gpuAccessor, ShaderHeader header)
+        {
+            TransformFeedbackOutput[] transformFeedbackOutputs = GetTransformFeedbackOutputs(gpuAccessor, out ulong transformFeedbackVecMap);
+
+            return new ShaderDefinitions(
+                header.Stage,
+                gpuAccessor.QueryGraphicsState(),
+                header.Stage == ShaderStage.Geometry && header.GpPassthrough,
+                header.ThreadsPerInputPrimitive,
+                header.OutputTopology,
+                header.MaxOutputVertexCount,
+                header.ImapTypes,
+                header.OmapTargets,
+                header.OmapSampleMask,
+                header.OmapDepth,
+                gpuAccessor.QueryHostSupportsScaledVertexFormats(),
+                transformFeedbackVecMap,
+                transformFeedbackOutputs);
+        }
+
+        internal static TransformFeedbackOutput[] GetTransformFeedbackOutputs(IGpuAccessor gpuAccessor, out ulong transformFeedbackVecMap)
         {
             bool transformFeedbackEnabled =
                 gpuAccessor.QueryTransformFeedbackEnabled() &&
                 gpuAccessor.QueryHostSupportsTransformFeedback();
             TransformFeedbackOutput[] transformFeedbackOutputs = null;
-            ulong transformFeedbackVecMap = 0UL;
+            transformFeedbackVecMap = 0UL;
 
             if (transformFeedbackEnabled)
             {
@@ -105,21 +125,7 @@ namespace Ryujinx.Graphics.Shader.Translation
                 }
             }
 
-            return new ShaderDefinitions(
-                header.Stage,
-                gpuAccessor.QueryGraphicsState(),
-                header.Stage == ShaderStage.Geometry && header.GpPassthrough,
-                header.ThreadsPerInputPrimitive,
-                header.OutputTopology,
-                header.MaxOutputVertexCount,
-                header.ImapTypes,
-                header.OmapTargets,
-                header.OmapSampleMask,
-                header.OmapDepth,
-                gpuAccessor.QueryHostSupportsScaledVertexFormats(),
-                transformFeedbackEnabled,
-                transformFeedbackVecMap,
-                transformFeedbackOutputs);
+            return transformFeedbackOutputs;
         }
 
         private static int GetLocalMemorySize(ShaderHeader header)
@@ -131,6 +137,7 @@ namespace Ryujinx.Graphics.Shader.Translation
             TranslatorContext translatorContext,
             ResourceManager resourceManager,
             DecodedProgram program,
+            bool vertexAsCompute,
             bool initializeOutputs,
             out int initializationOperations)
         {
@@ -147,7 +154,7 @@ namespace Ryujinx.Graphics.Shader.Translation
 
             for (int index = 0; index < functions.Length; index++)
             {
-                EmitterContext context = new(translatorContext, resourceManager, program, index != 0);
+                EmitterContext context = new(translatorContext, resourceManager, program, vertexAsCompute, index != 0);
 
                 if (initializeOutputs && index == 0)
                 {

src/Ryujinx.Graphics.Shader/Translation/TranslatorContext.cs

@@ -8,7 +8,6 @@ using Ryujinx.Graphics.Shader.Translation.Optimizations;
 using Ryujinx.Graphics.Shader.Translation.Transforms;
 using System;
 using System.Collections.Generic;
-using System.Linq;
 using System.Numerics;
 using static Ryujinx.Graphics.Shader.IntermediateRepresentation.OperandHelper;
 using static Ryujinx.Graphics.Shader.Translation.Translator;
@@ -19,14 +18,12 @@ namespace Ryujinx.Graphics.Shader.Translation
     {
         private readonly DecodedProgram _program;
         private readonly int _localMemorySize;
+        private IoUsage _vertexOutput;
 
         public ulong Address { get; }
         public int Size { get; }
         public int Cb1DataSize => _program.Cb1DataSize;
 
-        internal bool HasLayerInputAttribute { get; private set; }
-        internal int GpLayerInputAttribute { get; private set; }
-
         internal AttributeUsage AttributeUsage => _program.AttributeUsage;
 
         internal ShaderDefinitions Definitions { get; }
@@ -37,7 +34,8 @@ namespace Ryujinx.Graphics.Shader.Translation
 
         internal TranslationOptions Options { get; }
 
-        internal FeatureFlags UsedFeatures { get; private set; }
+        private bool IsTransformFeedbackEmulated => !GpuAccessor.QueryHostSupportsTransformFeedback() && GpuAccessor.QueryTransformFeedbackEnabled();
+        public bool HasStore => _program.UsedFeatures.HasFlag(FeatureFlags.Store) || (IsTransformFeedbackEmulated && Definitions.LastInVertexPipeline);
 
         public bool LayerOutputWritten { get; private set; }
         public int LayerOutputAttribute { get; private set; }
@@ -55,10 +53,10 @@ namespace Ryujinx.Graphics.Shader.Translation
             Size = size;
             _program = program;
             _localMemorySize = localMemorySize;
+            _vertexOutput = new IoUsage(FeatureFlags.None, 0, -1);
             Definitions = definitions;
             GpuAccessor = gpuAccessor;
             Options = options;
-            UsedFeatures = program.UsedFeatures;
         }
 
         private static bool IsLoadUserDefined(Operation operation)
@@ -171,13 +169,6 @@ namespace Ryujinx.Graphics.Shader.Translation
             LayerOutputAttribute = attr;
         }
 
-        public void SetGeometryShaderLayerInputAttribute(int attr)
-        {
-            UsedFeatures |= FeatureFlags.RtLayer;
-            HasLayerInputAttribute = true;
-            GpLayerInputAttribute = attr;
-        }
-
         public void SetLastInVertexPipeline()
         {
             Definitions.LastInVertexPipeline = true;
@@ -187,7 +178,7 @@ namespace Ryujinx.Graphics.Shader.Translation
         {
             AttributeUsage.MergeFromtNextStage(
                 Definitions.GpPassthrough,
-                nextStage.UsedFeatures.HasFlag(FeatureFlags.FixedFuncAttr),
+                nextStage._program.UsedFeatures.HasFlag(FeatureFlags.FixedFuncAttr),
                 nextStage.AttributeUsage);
 
             // We don't consider geometry shaders using the geometry shader passthrough feature
@@ -200,9 +191,9 @@ namespace Ryujinx.Graphics.Shader.Translation
             }
         }
 
-        public ShaderProgram Translate()
+        public ShaderProgram Translate(bool asCompute = false)
         {
-            ResourceManager resourceManager = CreateResourceManager();
+            ResourceManager resourceManager = CreateResourceManager(asCompute);
 
             bool usesLocalMemory = _program.UsedFeatures.HasFlag(FeatureFlags.LocalMemory);
 
@@ -215,36 +206,42 @@ namespace Ryujinx.Graphics.Shader.Translation
                 resourceManager.SetCurrentSharedMemory(GpuAccessor.QueryComputeSharedMemorySize(), usesSharedMemory);
             }
 
-            FunctionCode[] code = EmitShader(this, resourceManager, _program, initializeOutputs: true, out _);
+            FunctionCode[] code = EmitShader(this, resourceManager, _program, asCompute, initializeOutputs: true, out _);
 
-            return Translate(code, resourceManager, UsedFeatures, _program.ClipDistancesWritten);
+            return Translate(code, resourceManager, _program.UsedFeatures, _program.ClipDistancesWritten, asCompute);
         }
 
-        public ShaderProgram Translate(TranslatorContext other)
+        public ShaderProgram Translate(TranslatorContext other, bool asCompute = false)
         {
-            ResourceManager resourceManager = CreateResourceManager();
+            ResourceManager resourceManager = CreateResourceManager(asCompute);
 
             bool usesLocalMemory = _program.UsedFeatures.HasFlag(FeatureFlags.LocalMemory);
             resourceManager.SetCurrentLocalMemory(_localMemorySize, usesLocalMemory);
 
-            FunctionCode[] code = EmitShader(this, resourceManager, _program, initializeOutputs: false, out _);
+            FunctionCode[] code = EmitShader(this, resourceManager, _program, asCompute, initializeOutputs: false, out _);
 
             bool otherUsesLocalMemory = other._program.UsedFeatures.HasFlag(FeatureFlags.LocalMemory);
             resourceManager.SetCurrentLocalMemory(other._localMemorySize, otherUsesLocalMemory);
 
-            FunctionCode[] otherCode = EmitShader(other, resourceManager, other._program, initializeOutputs: true, out int aStart);
+            FunctionCode[] otherCode = EmitShader(other, resourceManager, other._program, asCompute, initializeOutputs: true, out int aStart);
 
             code = Combine(otherCode, code, aStart);
 
             return Translate(
                 code,
                 resourceManager,
-                UsedFeatures | other.UsedFeatures,
-                (byte)(_program.ClipDistancesWritten | other._program.ClipDistancesWritten));
+                _program.UsedFeatures | other._program.UsedFeatures,
+                (byte)(_program.ClipDistancesWritten | other._program.ClipDistancesWritten),
+                asCompute);
         }
 
-        private ShaderProgram Translate(FunctionCode[] functions, ResourceManager resourceManager, FeatureFlags usedFeatures, byte clipDistancesWritten)
+        private ShaderProgram Translate(FunctionCode[] functions, ResourceManager resourceManager, FeatureFlags usedFeatures, byte clipDistancesWritten, bool asCompute)
         {
+            if (asCompute)
+            {
+                usedFeatures |= FeatureFlags.VtgAsCompute;
+            }
+
             var cfgs = new ControlFlowGraph[functions.Length];
             var frus = new RegisterUsage.FunctionRegisterUsage[functions.Length];
 
@@ -294,6 +291,7 @@ namespace Ryujinx.Graphics.Shader.Translation
                     TransformContext context = new(
                         hfm,
                         cfg.Blocks,
+                        Definitions,
                         resourceManager,
                         GpuAccessor,
                         Options.TargetLanguage,
@@ -307,28 +305,24 @@ namespace Ryujinx.Graphics.Shader.Translation
                 funcs[i] = new Function(cfg.Blocks, $"fun{i}", false, inArgumentsCount, outArgumentsCount);
             }
 
-            var identification = ShaderIdentifier.Identify(funcs, GpuAccessor, Definitions.Stage, Definitions.InputTopology, out int layerInputAttr);
-
             return Generate(
                 funcs,
                 AttributeUsage,
+                GetDefinitions(asCompute),
                 Definitions,
                 resourceManager,
                 usedFeatures,
-                clipDistancesWritten,
-                identification,
-                layerInputAttr);
+                clipDistancesWritten);
         }
 
         private ShaderProgram Generate(
             IReadOnlyList<Function> funcs,
             AttributeUsage attributeUsage,
             ShaderDefinitions definitions,
+            ShaderDefinitions originalDefinitions,
             ResourceManager resourceManager,
             FeatureFlags usedFeatures,
-            byte clipDistancesWritten,
-            ShaderIdentification identification = ShaderIdentification.None,
-            int layerInputAttr = 0)
+            byte clipDistancesWritten)
         {
             var sInfo = StructuredProgram.MakeStructuredProgram(
                 funcs,
@@ -337,20 +331,28 @@ namespace Ryujinx.Graphics.Shader.Translation
                 resourceManager,
                 Options.Flags.HasFlag(TranslationFlags.DebugMode));
 
+            int geometryVerticesPerPrimitive = Definitions.OutputTopology switch
+            {
+                OutputTopology.LineStrip => 2,
+                OutputTopology.TriangleStrip => 3,
+                _ => 1
+            };
+
             var info = new ShaderProgramInfo(
                 resourceManager.GetConstantBufferDescriptors(),
                 resourceManager.GetStorageBufferDescriptors(),
                 resourceManager.GetTextureDescriptors(),
                 resourceManager.GetImageDescriptors(),
-                identification,
-                layerInputAttr,
-                definitions.Stage,
+                originalDefinitions.Stage,
+                geometryVerticesPerPrimitive,
+                originalDefinitions.MaxOutputVertices,
+                originalDefinitions.ThreadsPerInputPrimitive,
                 usedFeatures.HasFlag(FeatureFlags.FragCoordXY),
                 usedFeatures.HasFlag(FeatureFlags.InstanceId),
                 usedFeatures.HasFlag(FeatureFlags.DrawParameters),
                 usedFeatures.HasFlag(FeatureFlags.RtLayer),
                 clipDistancesWritten,
-                definitions.OmapTargets);
+                originalDefinitions.OmapTargets);
 
             var hostCapabilities = new HostCapabilities(
                 GpuAccessor.QueryHostReducedPrecision(),
@@ -372,37 +374,203 @@ namespace Ryujinx.Graphics.Shader.Translation
             };
         }
 
-        private ResourceManager CreateResourceManager()
+        private ResourceManager CreateResourceManager(bool vertexAsCompute)
         {
-            ResourceManager resourceManager = new(Definitions.Stage, GpuAccessor);
+            ResourceManager resourceManager = new(Definitions.Stage, GpuAccessor, GetResourceReservations());
 
-            if (!GpuAccessor.QueryHostSupportsTransformFeedback() && GpuAccessor.QueryTransformFeedbackEnabled())
+            if (IsTransformFeedbackEmulated)
             {
-                StructureType tfeInfoStruct = new(new StructureField[]
-                {
-                    new StructureField(AggregateType.Array | AggregateType.U32, "base_offset", 4),
-                    new StructureField(AggregateType.U32, "vertex_count")
-                });
-
-                BufferDefinition tfeInfoBuffer = new(BufferLayout.Std430, 1, Constants.TfeInfoBinding, "tfe_info", tfeInfoStruct);
-                resourceManager.Properties.AddOrUpdateStorageBuffer(tfeInfoBuffer);
-
                 StructureType tfeDataStruct = new(new StructureField[]
                 {
                     new StructureField(AggregateType.Array | AggregateType.U32, "data", 0)
                 });
 
-                for (int i = 0; i < Constants.TfeBuffersCount; i++)
+                for (int i = 0; i < ResourceReservations.TfeBuffersCount; i++)
                 {
-                    int binding = Constants.TfeBufferBaseBinding + i;
+                    int binding = resourceManager.Reservations.GetTfeBufferStorageBufferBinding(i);
                     BufferDefinition tfeDataBuffer = new(BufferLayout.Std430, 1, binding, $"tfe_data{i}", tfeDataStruct);
                     resourceManager.Properties.AddOrUpdateStorageBuffer(tfeDataBuffer);
                 }
             }
 
+            if (vertexAsCompute)
+            {
+                int vertexInfoCbBinding = resourceManager.Reservations.VertexInfoConstantBufferBinding;
+                BufferDefinition vertexInfoBuffer = new(BufferLayout.Std140, 0, vertexInfoCbBinding, "vb_info", VertexInfoBuffer.GetStructureType());
+                resourceManager.Properties.AddOrUpdateConstantBuffer(vertexInfoBuffer);
+
+                StructureType vertexOutputStruct = new(new StructureField[]
+                {
+                    new StructureField(AggregateType.Array | AggregateType.FP32, "data", 0)
+                });
+
+                int vertexOutputSbBinding = resourceManager.Reservations.VertexOutputStorageBufferBinding;
+                BufferDefinition vertexOutputBuffer = new(BufferLayout.Std430, 1, vertexOutputSbBinding, "vertex_output", vertexOutputStruct);
+                resourceManager.Properties.AddOrUpdateStorageBuffer(vertexOutputBuffer);
+
+                if (Stage == ShaderStage.Vertex)
+                {
+                    int ibBinding = resourceManager.Reservations.IndexBufferTextureBinding;
+                    TextureDefinition indexBuffer = new(2, ibBinding, "ib_data", SamplerType.TextureBuffer, TextureFormat.Unknown, TextureUsageFlags.None);
+                    resourceManager.Properties.AddOrUpdateTexture(indexBuffer);
+
+                    int inputMap = _program.AttributeUsage.UsedInputAttributes;
+
+                    while (inputMap != 0)
+                    {
+                        int location = BitOperations.TrailingZeroCount(inputMap);
+                        int binding = resourceManager.Reservations.GetVertexBufferTextureBinding(location);
+                        TextureDefinition vaBuffer = new(2, binding, $"vb_data{location}", SamplerType.TextureBuffer, TextureFormat.Unknown, TextureUsageFlags.None);
+                        resourceManager.Properties.AddOrUpdateTexture(vaBuffer);
+
+                        inputMap &= ~(1 << location);
+                    }
+                }
+                else if (Stage == ShaderStage.Geometry)
+                {
+                    int trbBinding = resourceManager.Reservations.TopologyRemapBufferTextureBinding;
+                    TextureDefinition remapBuffer = new(2, trbBinding, "trb_data", SamplerType.TextureBuffer, TextureFormat.Unknown, TextureUsageFlags.None);
+                    resourceManager.Properties.AddOrUpdateTexture(remapBuffer);
+
+                    int geometryVbOutputSbBinding = resourceManager.Reservations.GeometryVertexOutputStorageBufferBinding;
+                    BufferDefinition geometryVbOutputBuffer = new(BufferLayout.Std430, 1, geometryVbOutputSbBinding, "geometry_vb_output", vertexOutputStruct);
+                    resourceManager.Properties.AddOrUpdateStorageBuffer(geometryVbOutputBuffer);
+
+                    StructureType geometryIbOutputStruct = new(new StructureField[]
+                    {
+                        new StructureField(AggregateType.Array | AggregateType.U32, "data", 0)
+                    });
+
+                    int geometryIbOutputSbBinding = resourceManager.Reservations.GeometryIndexOutputStorageBufferBinding;
+                    BufferDefinition geometryIbOutputBuffer = new(BufferLayout.Std430, 1, geometryIbOutputSbBinding, "geometry_ib_output", geometryIbOutputStruct);
+                    resourceManager.Properties.AddOrUpdateStorageBuffer(geometryIbOutputBuffer);
+                }
+
+                resourceManager.SetVertexAsComputeLocalMemories(Definitions.Stage, Definitions.InputTopology);
+            }
+
             return resourceManager;
         }
 
+        private ShaderDefinitions GetDefinitions(bool vertexAsCompute)
+        {
+            if (vertexAsCompute)
+            {
+                return new ShaderDefinitions(ShaderStage.Compute, 32, 32, 1);
+            }
+            else
+            {
+                return Definitions;
+            }
+        }
+
+        public ResourceReservations GetResourceReservations()
+        {
+            IoUsage ioUsage = _program.GetIoUsage();
+
+            if (Definitions.GpPassthrough)
+            {
+                ioUsage = ioUsage.Combine(_vertexOutput);
+            }
+
+            return new ResourceReservations(GpuAccessor, IsTransformFeedbackEmulated, vertexAsCompute: true, _vertexOutput, ioUsage);
+        }
+
+        public void SetVertexOutputMapForGeometryAsCompute(TranslatorContext vertexContext)
+        {
+            _vertexOutput = vertexContext._program.GetIoUsage();
+        }
+
+        public ShaderProgram GenerateVertexPassthroughForCompute()
+        {
+            var attributeUsage = new AttributeUsage(GpuAccessor);
+            var resourceManager = new ResourceManager(ShaderStage.Vertex, GpuAccessor);
+
+            var reservations = GetResourceReservations();
+
+            int vertexInfoCbBinding = reservations.VertexInfoConstantBufferBinding;
+
+            if (Stage == ShaderStage.Vertex)
+            {
+                BufferDefinition vertexInfoBuffer = new(BufferLayout.Std140, 0, vertexInfoCbBinding, "vb_info", VertexInfoBuffer.GetStructureType());
+                resourceManager.Properties.AddOrUpdateConstantBuffer(vertexInfoBuffer);
+            }
+
+            StructureType vertexInputStruct = new(new StructureField[]
+            {
+                new StructureField(AggregateType.Array | AggregateType.FP32, "data", 0)
+            });
+
+            int vertexDataSbBinding = reservations.VertexOutputStorageBufferBinding;
+            BufferDefinition vertexOutputBuffer = new(BufferLayout.Std430, 1, vertexDataSbBinding, "vb_input", vertexInputStruct);
+            resourceManager.Properties.AddOrUpdateStorageBuffer(vertexOutputBuffer);
+
+            var context = new EmitterContext();
+
+            Operand vertexIndex = Options.TargetApi == TargetApi.OpenGL
+                ? context.Load(StorageKind.Input, IoVariable.VertexId)
+                : context.Load(StorageKind.Input, IoVariable.VertexIndex);
+
+            if (Stage == ShaderStage.Vertex)
+            {
+                Operand vertexCount = context.Load(StorageKind.ConstantBuffer, vertexInfoCbBinding, Const((int)VertexInfoBufferField.VertexCounts), Const(0));
+
+                // Base instance will be always zero when this shader is used, so which one we use here doesn't really matter.
+                Operand instanceId = Options.TargetApi == TargetApi.OpenGL
+                    ? context.Load(StorageKind.Input, IoVariable.InstanceId)
+                    : context.Load(StorageKind.Input, IoVariable.InstanceIndex);
+
+                vertexIndex = context.IAdd(context.IMultiply(instanceId, vertexCount), vertexIndex);
+            }
+
+            Operand baseOffset = context.IMultiply(vertexIndex, Const(reservations.OutputSizePerInvocation));
+
+            foreach ((IoDefinition ioDefinition, int inputOffset) in reservations.Offsets)
+            {
+                if (ioDefinition.StorageKind != StorageKind.Output)
+                {
+                    continue;
+                }
+
+                Operand vertexOffset = inputOffset != 0 ? context.IAdd(baseOffset, Const(inputOffset)) : baseOffset;
+                Operand value = context.Load(StorageKind.StorageBuffer, vertexDataSbBinding, Const(0), vertexOffset);
+
+                if (ioDefinition.IoVariable == IoVariable.UserDefined)
+                {
+                    context.Store(StorageKind.Output, ioDefinition.IoVariable, null, Const(ioDefinition.Location), Const(ioDefinition.Component), value);
+                    attributeUsage.SetOutputUserAttribute(ioDefinition.Location);
+                }
+                else if (ResourceReservations.IsVectorOrArrayVariable(ioDefinition.IoVariable))
+                {
+                    context.Store(StorageKind.Output, ioDefinition.IoVariable, null, Const(ioDefinition.Component), value);
+                }
+                else
+                {
+                    context.Store(StorageKind.Output, ioDefinition.IoVariable, null, value);
+                }
+            }
+
+            var operations = context.GetOperations();
+            var cfg = ControlFlowGraph.Create(operations);
+            var function = new Function(cfg.Blocks, "main", false, 0, 0);
+
+            var transformFeedbackOutputs = GetTransformFeedbackOutputs(GpuAccessor, out ulong transformFeedbackVecMap);
+
+            var definitions = new ShaderDefinitions(ShaderStage.Vertex, transformFeedbackVecMap, transformFeedbackOutputs)
+            {
+                LastInVertexPipeline = true
+            };
+
+            return Generate(
+                new[] { function },
+                attributeUsage,
+                definitions,
+                definitions,
+                resourceManager,
+                FeatureFlags.None,
+                0);
+        }
+
         public ShaderProgram GenerateGeometryPassthrough()
         {
             int outputAttributesMask = AttributeUsage.UsedOutputAttributes;
@@ -484,7 +652,14 @@ namespace Ryujinx.Graphics.Shader.Translation
                 outputTopology,
                 maxOutputVertices);
 
-            return Generate(new[] { function }, attributeUsage, definitions, resourceManager, FeatureFlags.RtLayer, 0);
+            return Generate(
+                new[] { function },
+                attributeUsage,
+                definitions,
+                definitions,
+                resourceManager,
+                FeatureFlags.RtLayer,
+                0);
         }
     }
 }

src/Ryujinx.Graphics.Shader/VertexInfoBuffer.cs

@@ -0,0 +1,59 @@
+using Ryujinx.Common.Memory;
+using Ryujinx.Graphics.Shader.StructuredIr;
+using Ryujinx.Graphics.Shader.Translation;
+using System.Runtime.CompilerServices;
+
+namespace Ryujinx.Graphics.Shader
+{
+    enum VertexInfoBufferField
+    {
+        // Must match the order of the fields on the struct.
+        VertexCounts,
+        GeometryCounts,
+        VertexStrides,
+        VertexOffsets,
+    }
+
+    public struct VertexInfoBuffer
+    {
+        public static readonly int RequiredSize;
+
+        public static readonly int VertexCountsOffset;
+        public static readonly int GeometryCountsOffset;
+        public static readonly int VertexStridesOffset;
+        public static readonly int VertexOffsetsOffset;
+
+        private static int OffsetOf<T>(ref VertexInfoBuffer storage, ref T target)
+        {
+            return (int)Unsafe.ByteOffset(ref Unsafe.As<VertexInfoBuffer, T>(ref storage), ref target);
+        }
+
+        static VertexInfoBuffer()
+        {
+            RequiredSize = Unsafe.SizeOf<VertexInfoBuffer>();
+
+            VertexInfoBuffer instance = new();
+
+            VertexCountsOffset = OffsetOf(ref instance, ref instance.VertexCounts);
+            GeometryCountsOffset = OffsetOf(ref instance, ref instance.GeometryCounts);
+            VertexStridesOffset = OffsetOf(ref instance, ref instance.VertexStrides);
+            VertexOffsetsOffset = OffsetOf(ref instance, ref instance.VertexOffsets);
+        }
+
+        internal static StructureType GetStructureType()
+        {
+            return new StructureType(new[]
+            {
+                new StructureField(AggregateType.Vector4 | AggregateType.U32, "vertex_counts"),
+                new StructureField(AggregateType.Vector4 | AggregateType.U32, "geometry_counts"),
+                new StructureField(AggregateType.Array | AggregateType.Vector4 | AggregateType.U32, "vertex_strides", ResourceReservations.MaxVertexBufferTextures),
+                new StructureField(AggregateType.Array | AggregateType.Vector4 | AggregateType.U32, "vertex_offsets", ResourceReservations.MaxVertexBufferTextures),
+            });
+        }
+
+        public Vector4<int> VertexCounts;
+        public Vector4<int> GeometryCounts;
+        public Array32<Vector4<int>> VertexStrides;
+        public Array32<Vector4<int>> VertexOffsets;
+    }
+}