swr: [rasterizer archrast] Fix archrast for MSVC 2017 compiler

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>

src/gallium/drivers/swr/rasterizer/archrast/archrast.cpp

@@ -298,7 +298,7 @@ namespace ArchRast
     }
 
     // Dispatch event for this thread.
-    void Dispatch(HANDLE hThreadContext, Event& event)
+    void Dispatch(HANDLE hThreadContext, const Event& event)
     {
         EventManager* pManager = FromHandle(hThreadContext);
         SWR_ASSERT(pManager != nullptr);

src/gallium/drivers/swr/rasterizer/archrast/archrast.h

@@ -42,7 +42,7 @@ namespace ArchRast
     void DestroyThreadContext(HANDLE hThreadContext);
 
     // Dispatch event for this thread.
-    void Dispatch(HANDLE hThreadContext, Event& event);
+    void Dispatch(HANDLE hThreadContext, const Event& event);
     void FlushDraw(HANDLE hThreadContext, uint32_t drawId);
 };
 

src/gallium/drivers/swr/rasterizer/archrast/eventmanager.h

@@ -60,7 +60,7 @@ namespace ArchRast
             mHandlers.push_back(pHandler);
         }
 
-        void Dispatch(Event& event)
+        void Dispatch(const Event& event)
         {
             ///@todo Add event filter check here.
 

src/gallium/drivers/swr/rasterizer/codegen/templates/gen_ar_event.cpp

@@ -37,7 +37,7 @@
 using namespace ArchRast;
 % for name in protos['event_names']:
 
-void ${name}::Accept(EventHandler* pHandler)
+void ${name}::Accept(EventHandler* pHandler) const
 {
     pHandler->Handle(*this);
 }

src/gallium/drivers/swr/rasterizer/codegen/templates/gen_ar_event.hpp

@@ -57,7 +57,7 @@ namespace ArchRast
         Event() {}
         virtual ~Event() {}
 
-        virtual void Accept(EventHandler* pHandler) = 0;
+        virtual void Accept(EventHandler* pHandler) const = 0;
     };
 % for name in protos['event_names']:
 
@@ -102,7 +102,7 @@ namespace ArchRast
         % endfor
         }
 
-        virtual void Accept(EventHandler* pHandler);
+        virtual void Accept(EventHandler* pHandler) const;
     };
 % endfor
 }