Fix geometry shader passthrough issue (#6462)

* Fix geometry shader passthrough issue (Diagnosed by gdkchan)

* Fix whitespace formatting

* Fix whitespace formatting

* Bump shader cache version

* Don't apply PassthroughNV decorations to output geometry shader variables

1 files changed, 10 insertions, 0 deletions

diff --git a/src/Ryujinx.Graphics.Shader/CodeGen/Spirv/Declarations.cs b/src/Ryujinx.Graphics.Shader/CodeGen/Spirv/Declarations.cs
index 4ff61d9f..b7482425 100644
--- a/src/Ryujinx.Graphics.Shader/CodeGen/Spirv/Declarations.cs
+++ b/src/Ryujinx.Graphics.Shader/CodeGen/Spirv/Declarations.cs
@@ -356,6 +356,16 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
 
                     context.AddGlobalVariable(perVertexInputVariable);
                     context.Inputs.Add(new IoDefinition(StorageKind.Input, IoVariable.Position), perVertexInputVariable);
+
+                    if (context.Definitions.Stage == ShaderStage.Geometry &&
+                        context.Definitions.GpPassthrough &&
+                        context.HostCapabilities.SupportsGeometryShaderPassthrough)
+                    {
+                        context.MemberDecorate(perVertexInputStructType, 0, Decoration.PassthroughNV);
+                        context.MemberDecorate(perVertexInputStructType, 1, Decoration.PassthroughNV);
+                        context.MemberDecorate(perVertexInputStructType, 2, Decoration.PassthroughNV);
+                        context.MemberDecorate(perVertexInputStructType, 3, Decoration.PassthroughNV);
+                    }
                 }
 
                 var perVertexOutputStructType = CreatePerVertexStructType(context);