Quadrotor

////////////////////////////////////////////////////////////////////////////

//        File:                PyramidCL.h

//        Author:                Changchang Wu

//        Description : interface for the PyramdCL

//

//        Copyright (c) 2007 University of North Carolina at Chapel Hill

//        All Rights Reserved

//

//        Permission to use, copy, modify and distribute this software and its

//        documentation for educational, research and non-profit purposes, without

//        fee, and without a written agreement is hereby granted, provided that the

//        above copyright notice and the following paragraph appear in all copies.

//        

//        The University of North Carolina at Chapel Hill make no representations

//        about the suitability of this software for any purpose. It is provided

//        'as is' without express or implied warranty. 

//

//        Please send BUG REPORTS to ccwu@cs.unc.edu

//

////////////////////////////////////////////////////////////////////////////

#ifndef _PYRAMID_CL_H

#define _PYRAMID_CL_H

#if defined(CL_SIFTGPU_ENABLED)

class CLTexImage;

class SiftPyramid;

class ProgramBagCL;

class PyramidCL: public SiftPyramid

{

        CLTexImage*         _inputTex;

        CLTexImage*         _allPyramid;

        CLTexImage*         _histoPyramidTex;

        CLTexImage*         _featureTex;

        CLTexImage*         _descriptorTex;

        CLTexImage*         _orientationTex;

    ProgramBagCL*   _OpenCL;

    GLTexImage*     _bufferTEX;

public:

        virtual void GetFeatureDescriptors();

        virtual void GenerateFeatureListTex();

        virtual void ReshapeFeatureListCPU();

        virtual void GenerateFeatureDisplayVBO();

        virtual void DestroySharedData();

        virtual void DestroyPerLevelData();

        virtual void DestroyPyramidData();

        virtual void DownloadKeypoints();

        virtual void GenerateFeatureListCPU();

        virtual void GenerateFeatureList();

        virtual GLTexImage* GetLevelTexture(int octave, int level);

        virtual GLTexImage* GetLevelTexture(int octave, int level, int dataName);

        virtual void BuildPyramid(GLTexInput * input);

        virtual void DetectKeypointsEX();

        virtual void ComputeGradient();

        virtual void GetFeatureOrientations();

        virtual void GetSimplifiedOrientation();

        virtual void InitPyramid(int w, int h, int ds = 0);

        virtual void ResizePyramid(int w, int h);

        //////////

        void CopyGradientTex();

        void FitPyramid(int w, int h);

    void InitializeContext();

        int ResizeFeatureStorage();

        int FitHistogramPyramid(CLTexImage* tex);

        void SetLevelFeatureNum(int idx, int fcount);

        void ConvertInputToCL(GLTexInput* input, CLTexImage* output);

        GLTexImage* ConvertTexCL2GL(CLTexImage* tex, int dataName);

        CLTexImage* GetBaseLevel(int octave, int dataName = DATA_GAUSSIAN);

private:

        void GenerateFeatureList(int i, int j, int reduction_count, vector<int>& hbuffer);

public:

        PyramidCL(SiftParam& sp);

        virtual ~PyramidCL();

};

#endif

#endif