Add statically disabled geometry shaders on mobile

Source/Engine/GraphicsDevice/DirectX/DX12/GPUDeviceDX12.cpp

@@ -374,7 +374,7 @@ bool GPUDeviceDX12::Init()
         auto& limits = Limits;
         limits.HasCompute = true;
         limits.HasTessellation = GPU_ALLOW_TESSELLATION_SHADERS;
-        limits.HasGeometryShaders = true;
+        limits.HasGeometryShaders = GPU_ALLOW_GEOMETRY_SHADERS;
         limits.HasInstancing = true;
         limits.HasVolumeTextureRendering = true;
         limits.HasDrawIndirect = true;

Source/Engine/GraphicsDevice/DirectX/DX12/GPUShaderDX12.cpp

@@ -85,6 +85,7 @@ GPUShaderProgram* GPUShaderDX12::CreateGPUShaderProgram(ShaderStage type, const
         shader = New<GPUShaderProgramVSDX12>(initializer, header, cacheBytes, cacheSize, inputLayout, inputLayoutSize);
         break;
     }
+#if GPU_ALLOW_TESSELLATION_SHADERS
     case ShaderStage::Hull:
     {
         int32 controlPointsCount;
@@ -97,11 +98,14 @@ GPUShaderProgram* GPUShaderDX12::CreateGPUShaderProgram(ShaderStage type, const
         shader = New<GPUShaderProgramDSDX12>(initializer, header, cacheBytes, cacheSize);
         break;
     }
+#endif
+#if GPU_ALLOW_GEOMETRY_SHADERS
     case ShaderStage::Geometry:
     {
         shader = New<GPUShaderProgramGSDX12>(initializer, header, cacheBytes, cacheSize);
         break;
     }
+#endif
     case ShaderStage::Pixel:
     {
         shader = New<GPUShaderProgramPSDX12>(initializer, header, cacheBytes, cacheSize);

Source/Engine/GraphicsDevice/DirectX/DX12/GPUShaderProgramDX12.h

@@ -79,6 +79,7 @@ public:
     }
 };
 
+#if GPU_ALLOW_TESSELLATION_SHADERS
 /// <summary>
 /// Hull Shader for DirectX 12 backend.
 /// </summary>
@@ -105,7 +106,9 @@ public:
     {
     }
 };
+#endif
 
+#if GPU_ALLOW_GEOMETRY_SHADERS
 /// <summary>
 /// Geometry Shader for DirectX 12 backend.
 /// </summary>
@@ -118,6 +121,7 @@ public:
     {
     }
 };
+#endif
 
 /// <summary>
 /// Pixel Shader for DirectX 12 backend.