Initial commit

Torque/SDK/lib/dtsSDKPlus/stripper.h

@@ -0,0 +1,77 @@
+//-----------------------------------------------------------------------------
+// Torque Game Engine 
+// Copyright (C) GarageGames.com, Inc.
+//-----------------------------------------------------------------------------
+
+#include "DTSTypes.h"
+#include "DTSShape.h"
+#include "DTSMesh.h"
+#include "DTSPlusTypes.h"
+#include "DTSUtil.h"
+#include "dtsBitMatrix.h" // see comment in dtsMatrix.h
+
+namespace DTS
+{
+   class Stripper
+   {
+      std::vector<S32> numAdjacent;
+      std::vector<bool> used;
+      BitMatrix adjacent;
+      std::vector<S32> vertexCache;
+      std::vector<S32> recentFaces;
+      S32 currentFace;
+      bool limitStripLength;
+      S32 bestLength;
+      U32 cacheMisses;
+
+      std::vector<Primitive> strips;
+      std::vector<U16> stripIndices;
+   
+      std::vector<Primitive> & faces;
+      std::vector<U16> & faceIndices;
+
+      void clearCache();
+      void addToCache(S32 vertexIndex);
+      void addToCache(S32 vertexIndex, U32 posFromBack);
+
+      void getVerts(S32 face, S32 & oldVert0, S32 & oldVert1, S32 & addVert);
+      void rotateFace(S32 start, std::vector<U16> & indices);
+      bool swapNeeded(S32 oldVert0, S32 oldVert1);
+      F32 getScore(S32 face, bool ignoreOrder);
+      bool faceHasEdge(S32 face, U32 idx0, U32 idx1);
+      void getAdjacentFaces(S32 startFace, S32 endFace, S32 face, S32 & face0, S32 & face1, S32 & face2);
+
+      void setAdjacency(S32 startFace, S32 endFace);
+      bool startStrip(Primitive & strip, S32 startFace, S32 endFace);
+      bool addStrip(Primitive & strip, S32 startFace, S32 endFace);
+      bool stripLongEnough(S32 startFace, S32 endFace);
+
+      void testCache(S32 addedFace);
+      bool canGo(S32 face);
+
+      void makeStripsB(); // makeStrips() from faces...assumes all faces have same material index
+      void copyParams(Stripper *from);
+
+      public:
+
+      Stripper(std::vector<Primitive> & faces, std::vector<U16> & indices);
+      Stripper(Stripper &);
+      ~Stripper();
+   
+      void makeStrips();
+      S32 continueStrip(S32 startFace, S32 endFace, S32 len, S32 restart); // used for simulation...
+      void getStrips(std::vector<Primitive> & s, std::vector<U16> & si) { s=strips; si=stripIndices; }
+
+      void setLimitStripLength(bool lim) { limitStripLength = lim; }
+      void resetCacheMisses() { cacheMisses = 0; }
+      U32 getCacheMisses() { return cacheMisses; }
+   
+      // adjust strip building strategy
+      static F32 adjacencyWeight;
+      static F32 noswapWeight;
+      static F32 alreadyCachedWeight;
+      static U32 cacheSize;
+      static U32 simK;
+   };
+
+}