Implement Geometry shaders (#280)

* Implement Geometry shaders

* Add EmitVertex() and EndPrimitive()

* Read output geometry data from header

* Stub Vmad

* Add Iadd_I32

* Stub Mov_S (S2R)

* Stub Isberd

* Change vertex index to gpr39 in Abuf

* Add stub messages for consistency

* Do not print input block when there is no attributes

* Use GL_ARB_enhanced_layouts

* Skip geometry shaders when there's no GL_ARB_enhanced_layouts

* Address feedback

* Address feedback

1 files changed, 5 insertions, 2 deletions

diff --git a/Ryujinx.Graphics/Gal/Shader/GlslDecl.cs b/Ryujinx.Graphics/Gal/Shader/GlslDecl.cs
index d3284f9f..7688545c 100644
--- a/Ryujinx.Graphics/Gal/Shader/GlslDecl.cs
+++ b/Ryujinx.Graphics/Gal/Shader/GlslDecl.cs
@@ -4,13 +4,13 @@ namespace Ryujinx.Graphics.Gal.Shader
 {
     class GlslDecl
     {
+        public const int LayerAttr       = 0x064;
         public const int TessCoordAttrX  = 0x2f0;
         public const int TessCoordAttrY  = 0x2f4;
         public const int TessCoordAttrZ  = 0x2f8;
         public const int InstanceIdAttr  = 0x2f8;
         public const int VertexIdAttr    = 0x2fc;
         public const int FaceAttr        = 0x3fc;
-        public const int GlPositionWAttr = 0x7c;
 
         public const int MaxUboSize = 1024;
 
@@ -210,7 +210,8 @@ namespace Ryujinx.Graphics.Gal.Shader
                     //This is a built-in input variable.
                     if (Abuf.Offs == VertexIdAttr ||
                         Abuf.Offs == InstanceIdAttr ||
-                        Abuf.Offs == FaceAttr)
+                        Abuf.Offs == FaceAttr ||
+                        Abuf.Offs == LayerAttr)
                     {
                         break;
                     }
@@ -254,6 +255,8 @@ namespace Ryujinx.Graphics.Gal.Shader
 
                         m_Attributes.Add(Index, DeclInfo);
                     }
+
+                    Traverse(Abuf, Abuf.Vertex);
                     break;
                 }