Engine directory for ticket #1

Engine/source/lighting/shadowMap/shadowMapPass.h

@@ -0,0 +1,120 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) 2012 GarageGames, LLC
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+#ifndef _SHADOWMAPPASS_H_
+#define _SHADOWMAPPASS_H_
+
+#ifndef _RENDERPASSMANAGER_H_
+#include "renderInstance/renderPassManager.h"
+#endif
+#ifndef _RENDERMESHMGR_H_
+#include "renderInstance/renderMeshMgr.h"
+#endif
+#ifndef _LIGHTINFO_H_
+#include "lighting/lightInfo.h"
+#endif
+#ifndef _SHADOW_COMMON_H_
+#include "lighting/shadowMap/shadowCommon.h"
+#endif
+
+class RenderMeshMgr;
+class LightShadowMap;
+class LightManager;
+class ShadowMapManager;
+class BaseMatInstance;
+class RenderObjectMgr;
+class RenderTerrainMgr;
+class PlatformTimer;
+class ShadowRenderPassManager;
+
+/// ShadowMapPass, this is plugged into the SceneManager to generate 
+/// ShadowMaps for the scene.
+class ShadowMapPass
+{
+public:
+
+   ShadowMapPass() {}   // Only called by ConsoleSystem
+   ShadowMapPass(LightManager* LightManager, ShadowMapManager* ShadowManager);
+   virtual ~ShadowMapPass();
+
+   //
+   // SceneRenderPass interface
+   //
+
+   /// Called to render a scene.
+   void render(   SceneManager *sceneGraph, 
+                  const SceneRenderState *diffuseState, 
+                  U32 objectMask );
+
+   /// Return the type of pass this is
+   virtual const String& getPassType() const { return PassTypeName; };
+
+   /// Return our sort value. (Go first in order to have shadow maps available for RIT_Objects)
+   virtual F32 getSortValue() const { return 0.0f; }
+
+   virtual bool geometryOnly() const { return true; }
+
+   static const String PassTypeName;
+
+
+   /// Used to for debugging performance by disabling
+   /// shadow updates and rendering.
+   static bool smDisableShadows;
+
+   static bool smDisableShadowsEditor;
+   static bool smDisableShadowsPref;
+
+private:
+
+   static U32 smActiveShadowMaps;
+   static U32 smUpdatedShadowMaps;
+   static U32 smNearShadowMaps;
+   static U32 smShadowMapsDrawCalls;
+   static U32 smShadowMapPolyCount;
+   static U32 smRenderTargetChanges;
+   static U32 smShadowPoolTexturesCount;
+   static F32 smShadowPoolMemory;
+
+   /// The milliseconds alotted for shadow map updates
+   /// on a per frame basis.
+   static U32 smRenderBudgetMs;
+
+   PlatformTimer *mTimer;
+
+   LightInfoList mLights;
+   U32 mActiveLights;
+   SimObjectPtr<ShadowRenderPassManager> mShadowRPM;
+   LightManager* mLightManager;
+   ShadowMapManager* mShadowManager;
+};
+
+class ShadowRenderPassManager : public RenderPassManager
+{
+   typedef RenderPassManager Parent;
+public:
+   ShadowRenderPassManager() : Parent() {}
+
+   /// Add a RenderInstance to the list
+   virtual void addInst( RenderInst *inst );
+};
+
+#endif // _SHADOWMAPPASS_H_