diff options
Diffstat (limited to 'Opcode/Ice/IceRevisitedRadix.h')
-rw-r--r-- | Opcode/Ice/IceRevisitedRadix.h | 130 |
1 files changed, 65 insertions, 65 deletions
diff --git a/Opcode/Ice/IceRevisitedRadix.h b/Opcode/Ice/IceRevisitedRadix.h index ec2f6b1..3bdfc22 100644 --- a/Opcode/Ice/IceRevisitedRadix.h +++ b/Opcode/Ice/IceRevisitedRadix.h @@ -1,65 +1,65 @@ -///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-/**
- * Contains source code from the article "Radix Sort Revisited".
- * \file IceRevisitedRadix.h
- * \author Pierre Terdiman
- * \date April, 4, 2000
- */
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// Include Guard
-#ifndef __ICERADIXSORT_H__
-#define __ICERADIXSORT_H__
-
- //! Allocate histograms & offsets locally
- #define RADIX_LOCAL_RAM
-
- enum RadixHint
- {
- RADIX_SIGNED, //!< Input values are signed
- RADIX_UNSIGNED, //!< Input values are unsigned
-
- RADIX_FORCE_DWORD = 0x7fffffff
- };
-
- class ICECORE_API RadixSort
- {
- public:
- // Constructor/Destructor
- RadixSort();
- ~RadixSort();
- // Sorting methods
- RadixSort& Sort(const udword* input, udword nb, RadixHint hint=RADIX_SIGNED);
- RadixSort& Sort(const float* input, udword nb);
-
- //! Access to results. mRanks is a list of indices in sorted order, i.e. in the order you may further process your data
- inline_ const udword* GetRanks() const { return mRanks; }
-
- //! mIndices2 gets trashed on calling the sort routine, but otherwise you can recycle it the way you want.
- inline_ udword* GetRecyclable() const { return mRanks2; }
-
- // Stats
- udword GetUsedRam() const;
- //! Returns the total number of calls to the radix sorter.
- inline_ udword GetNbTotalCalls() const { return mTotalCalls; }
- //! Returns the number of eraly exits due to temporal coherence.
- inline_ udword GetNbHits() const { return mNbHits; }
-
- private:
-#ifndef RADIX_LOCAL_RAM
- udword* mHistogram; //!< Counters for each byte
- udword* mOffset; //!< Offsets (nearly a cumulative distribution function)
-#endif
- udword mCurrentSize; //!< Current size of the indices list
- udword* mRanks; //!< Two lists, swapped each pass
- udword* mRanks2;
- // Stats
- udword mTotalCalls; //!< Total number of calls to the sort routine
- udword mNbHits; //!< Number of early exits due to coherence
- // Internal methods
- void CheckResize(udword nb);
- bool Resize(udword nb);
- };
-
-#endif // __ICERADIXSORT_H__
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +/** + * Contains source code from the article "Radix Sort Revisited". + * \file IceRevisitedRadix.h + * \author Pierre Terdiman + * \date April, 4, 2000 + */ +/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// + +/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Include Guard +#ifndef __ICERADIXSORT_H__ +#define __ICERADIXSORT_H__ + + //! Allocate histograms & offsets locally + #define RADIX_LOCAL_RAM + + enum RadixHint + { + RADIX_SIGNED, //!< Input values are signed + RADIX_UNSIGNED, //!< Input values are unsigned + + RADIX_FORCE_DWORD = 0x7fffffff + }; + + class ICECORE_API RadixSort + { + public: + // Constructor/Destructor + RadixSort(); + ~RadixSort(); + // Sorting methods + RadixSort& Sort(const udword* input, udword nb, RadixHint hint=RADIX_SIGNED); + RadixSort& Sort(const float* input, udword nb); + + //! Access to results. mRanks is a list of indices in sorted order, i.e. in the order you may further process your data + inline_ const udword* GetRanks() const { return mRanks; } + + //! mIndices2 gets trashed on calling the sort routine, but otherwise you can recycle it the way you want. + inline_ udword* GetRecyclable() const { return mRanks2; } + + // Stats + udword GetUsedRam() const; + //! Returns the total number of calls to the radix sorter. + inline_ udword GetNbTotalCalls() const { return mTotalCalls; } + //! Returns the number of eraly exits due to temporal coherence. + inline_ udword GetNbHits() const { return mNbHits; } + + private: +#ifndef RADIX_LOCAL_RAM + udword* mHistogram; //!< Counters for each byte + udword* mOffset; //!< Offsets (nearly a cumulative distribution function) +#endif + udword mCurrentSize; //!< Current size of the indices list + udword* mRanks; //!< Two lists, swapped each pass + udword* mRanks2; + // Stats + udword mTotalCalls; //!< Total number of calls to the sort routine + udword mNbHits; //!< Number of early exits due to coherence + // Internal methods + void CheckResize(udword nb); + bool Resize(udword nb); + }; + +#endif // __ICERADIXSORT_H__ |