1 | #ifndef SUBDIVISIONCANDIDATE_H
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2 | #define SUBDIVISIONCANDIDATE_H
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3 |
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4 |
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5 | #include "FlexibleHeap.h"
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6 |
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7 | using namespace std;
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8 |
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9 | namespace GtpVisibilityPreprocessor {
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10 |
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11 | /** Candidate for a view space / object space split.
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12 | */
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13 | class SubdivisionCandidate: public Heapable
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14 | {
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15 | public:
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16 |
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17 | enum {OBJECT_SPACE, VIEW_SPACE};
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18 |
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19 | SubdivisionCandidate(): mRenderCostDecrease(0) {};
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20 |
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21 | virtual ~SubdivisionCandidate() {};
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22 | virtual void EvalPriority() = 0;
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23 | virtual int Type() const = 0;
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24 | virtual bool GlobalTerminationCriteriaMet() const = 0;
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25 |
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26 | /** Set render cost decrease achieved through this split.
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27 | */
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28 | inline void SetRenderCostDecrease(const float renderCostDecr)
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29 | {
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30 | mRenderCostDecrease = renderCostDecr;
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31 | }
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32 |
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33 | inline float GetRenderCostDecrease() const
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34 | {
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35 | return mRenderCostDecrease;
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36 | }
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37 |
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38 | /** Position in queue.
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39 | */
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40 | inline int GetPosition() const
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41 | {
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42 | return mPosition;
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43 | }
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44 |
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45 | inline void SetSplitAxis(const int splitAxis)
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46 | {
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47 | mSplitAxis = splitAxis;
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48 | }
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49 | inline void SetMaxCostMisses(const int misses)
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50 | {
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51 | mMaxCostMisses = misses;
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52 | }
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53 | inline void SetPvsEntriesIncr(const int pvsEntriesIncr)
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54 | {
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55 | mPvsEntriesIncr = pvsEntriesIncr;
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56 | }
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57 |
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58 | inline int GetSplitAxis() const
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59 | {
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60 | return mSplitAxis;
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61 | }
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62 | inline int GetMaxCostMisses() const
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63 | {
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64 | return mMaxCostMisses;
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65 | }
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66 | inline int GetPvsEntriesIncr() const
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67 | {
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68 | return mPvsEntriesIncr;
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69 | }
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70 |
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71 | protected:
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72 |
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73 | /// split axis of this plane (0, 1, 2, or 3 if non-axis-aligned)
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74 | int mSplitAxis;
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75 | /// the number of misses of max cost ratio until this split
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76 | int mMaxCostMisses;
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77 | /// render cost decrease achieved through this split
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78 | float mRenderCostDecrease;
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79 | /// the decrease of the number of pvs entries
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80 | int mPvsEntriesIncr;
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81 | };
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82 |
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83 | typedef FlexibleHeap<SubdivisionCandidate *> SplitQueue;
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84 | typedef vector<SubdivisionCandidate *> SubdivisionCandidateContainer;
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85 |
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86 | }
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87 |
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88 | // FLEXIBLEHEAP_H
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89 | #endif
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