cxtypes.h

Simple example of circle detection in OpenCV + C++Builder6.

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#ifndef _CXCORE_TYPES_H_
#define _CXCORE_TYPES_H_

#if !defined _CRT_SECURE_NO_DEPRECATE && _MSC_VER > 1300
#define _CRT_SECURE_NO_DEPRECATE /* to avoid multiple Visual Studio 2005 warnings */
#endif

#ifndef SKIP_INCLUDES
  #include <assert.h>
  #include <stdlib.h>
  #include <string.h>
  #include <float.h>

  #if defined __ICL
    #define CV_ICC   __ICL
  #elif defined __ICC
    #define CV_ICC   __ICC
  #elif defined __ECL
    #define CV_ICC   __ECL
  #elif defined __ECC
    #define CV_ICC   __ECC
  #endif

  #if defined WIN64 && defined EM64T && (defined _MSC_VER || defined CV_ICC) \
      || defined __SSE2__ || defined _MM_SHUFFLE2
    #include <emmintrin.h>
    #define CV_SSE2 1
  #else
    #define CV_SSE2 0
  #endif

  #if defined __BORLANDC__
    #include <fastmath.h>
  #elif defined WIN64 && !defined EM64T && defined CV_ICC
    #include <mathimf.h>
  #else
    #include <math.h>
  #endif

  #ifdef HAVE_IPL
      #ifndef __IPL_H__
          #if defined WIN32 || defined WIN64
              #include <ipl.h>
          #else
              #include <ipl/ipl.h>
          #endif
      #endif
  #elif defined __IPL_H__
      #define HAVE_IPL
  #endif
#endif // SKIP_INCLUDES

#if defined WIN32 || defined WIN64
    #define CV_CDECL __cdecl
    #define CV_STDCALL __stdcall
#else
    #define CV_CDECL
    #define CV_STDCALL
#endif

#ifndef CV_EXTERN_C
    #ifdef __cplusplus
        #define CV_EXTERN_C extern "C"
        #define CV_DEFAULT(val) = val
    #else
        #define CV_EXTERN_C
        #define CV_DEFAULT(val)
    #endif
#endif

#ifndef CV_EXTERN_C_FUNCPTR
    #ifdef __cplusplus
        #define CV_EXTERN_C_FUNCPTR(x) extern "C" { typedef x; }
    #else
        #define CV_EXTERN_C_FUNCPTR(x) typedef x
    #endif
#endif

#ifndef CV_INLINE
#if defined __cplusplus
    #define CV_INLINE inline
#elif (defined WIN32 || defined WIN64) && !defined __GNUC__
    #define CV_INLINE __inline
#else
    #define CV_INLINE static
#endif
#endif /* CV_INLINE */

#if (defined WIN32 || defined WIN64) && defined CVAPI_EXPORTS
    #define CV_EXPORTS __declspec(dllexport)
#else
    #define CV_EXPORTS
#endif

#ifndef CVAPI
    #define CVAPI(rettype) CV_EXTERN_C CV_EXPORTS rettype CV_CDECL
#endif

#if defined _MSC_VER || defined __BORLANDC__
typedef __int64 int64;
typedef unsigned __int64 uint64;
#else
typedef long long int64;
typedef unsigned long long uint64;
#endif

#ifndef HAVE_IPL
typedef unsigned char uchar;
typedef unsigned short ushort;
#endif

/* CvArr* is used to pass arbitrary array-like data structures
   into the functions where the particular
   array type is recognized at runtime */
typedef void CvArr;

typedef union Cv32suf
{
    int i;
    unsigned u;
    float f;
}
Cv32suf;

typedef union Cv64suf
{
    int64 i;
    uint64 u;
    double f;
}
Cv64suf;

/****************************************************************************************\
*                             Common macros and inline functions                         *
\****************************************************************************************/

#define CV_PI   3.1415926535897932384626433832795
#define CV_LOG2 0.69314718055994530941723212145818

#define CV_SWAP(a,b,t) ((t) = (a), (a) = (b), (b) = (t))

#ifndef MIN
#define MIN(a,b)  ((a) > (b) ? (b) : (a))
#endif

#ifndef MAX
#define MAX(a,b)  ((a) < (b) ? (b) : (a))
#endif

/* min & max without jumps */
#define  CV_IMIN(a, b)  ((a) ^ (((a)^(b)) & (((a) < (b)) - 1)))

#define  CV_IMAX(a, b)  ((a) ^ (((a)^(b)) & (((a) > (b)) - 1)))

/* absolute value without jumps */
#ifndef __cplusplus
#define  CV_IABS(a)     (((a) ^ ((a) < 0 ? -1 : 0)) - ((a) < 0 ? -1 : 0))
#else
#define  CV_IABS(a)     abs(a)
#endif
#define  CV_CMP(a,b)    (((a) > (b)) - ((a) < (b)))
#define  CV_SIGN(a)     CV_CMP((a),0)

CV_INLINE  int  cvRound( double value )
{
#if CV_SSE2
    __m128d t = _mm_load_sd( &value );
    return _mm_cvtsd_si32(t);
#elif defined WIN32 && !defined WIN64 && defined _MSC_VER
    int t;
    __asm
    {
        fld value;
        fistp t;
    }
    return t;
#elif (defined HAVE_LRINT) || (defined WIN64 && !defined EM64T && defined CV_ICC)
    return (int)lrint(value);
#else
    /*
     the algorithm was taken from Agner Fog's optimization guide
     at http://www.agner.org/assem
     */
    Cv64suf temp;
    temp.f = value + 6755399441055744.0;
    return (int)temp.u;
#endif
}


CV_INLINE  int  cvFloor( double value )
{
#if CV_SSE2
    __m128d t = _mm_load_sd( &value );
    int i = _mm_cvtsd_si32(t);
    return i - _mm_movemask_pd(_mm_cmplt_sd(t,_mm_cvtsi32_sd(t,i)));
#else
    int temp = cvRound(value);
    Cv32suf diff;
    diff.f = (float)(value - temp);
    return temp - (diff.i < 0);
#endif
}


CV_INLINE  int  cvCeil( double value )
{
#if CV_SSE2
    __m128d t = _mm_load_sd( &value );
    int i = _mm_cvtsd_si32(t);
    return i + _mm_movemask_pd(_mm_cmplt_sd(_mm_cvtsi32_sd(t,i),t));
#else
    int temp = cvRound(value);
    Cv32suf diff;
    diff.f = (float)(temp - value);
    return temp + (diff.i < 0);
#endif
}

#define cvInvSqrt(value) ((float)(1./sqrt(value)))
#define cvSqrt(value)  ((float)sqrt(value))

CV_INLINE int cvIsNaN( double value )
{
#if 1/*defined _MSC_VER || defined __BORLANDC__
    return _isnan(value);
#elif defined __GNUC__
    return isnan(value);
#else*/
    Cv64suf ieee754;
    ieee754.f = value;
    return ((unsigned)(ieee754.u >> 32) & 0x7fffffff) +
           ((unsigned)ieee754.u != 0) > 0x7ff00000;
#endif
}


CV_INLINE int cvIsInf( double value )
{
#if 1/*defined _MSC_VER || defined __BORLANDC__
    return !_finite(value);
#elif defined __GNUC__
    return isinf(value);
#else*/
    Cv64suf ieee754;
    ieee754.f = value;
    return ((unsigned)(ieee754.u >> 32) & 0x7fffffff) == 0x7ff00000 &&
           (unsigned)ieee754.u == 0;
#endif
}


/*************** Random number generation *******************/

typedef uint64 CvRNG;

CV_INLINE CvRNG cvRNG( int64 seed CV_DEFAULT(-1))
{
    CvRNG rng = seed ? (uint64)seed : (uint64)(int64)-1;
    return rng;
}

/* returns random 32-bit unsigned integer */
CV_INLINE unsigned cvRandInt( CvRNG* rng )
{
    uint64 temp = *rng;
    temp = (uint64)(unsigned)temp*1554115554 + (temp >> 32);
    *rng = temp;
    return (unsigned)temp;
}

/* returns random floating-point number between 0 and 1 */
CV_INLINE double cvRandReal( CvRNG* rng )
{
    return cvRandInt(rng)*2.3283064365386962890625e-10 /* 2^-32 */;
}

/****************************************************************************************\
*                                  Image type (IplImage)                                 *
\****************************************************************************************/

#ifndef HAVE_IPL

/*
 * The following definitions (until #endif)
 * is an extract from IPL headers.
 * Copyright (c) 1995 Intel Corporation.
 */
#define IPL_DEPTH_SIGN 0x80000000

#define IPL_DEPTH_1U     1
#define IPL_DEPTH_8U     8
#define IPL_DEPTH_16U   16
#define IPL_DEPTH_32F   32

#define IPL_DEPTH_8S  (IPL_DEPTH_SIGN| 8)
#define IPL_DEPTH_16S (IPL_DEPTH_SIGN|16)
#define IPL_DEPTH_32S (IPL_DEPTH_SIGN|32)

#define IPL_DATA_ORDER_PIXEL  0
#define IPL_DATA_ORDER_PLANE  1

#define IPL_ORIGIN_TL 0
#define IPL_ORIGIN_BL 1

#define IPL_ALIGN_4BYTES   4
#define IPL_ALIGN_8BYTES   8
#define IPL_ALIGN_16BYTES 16
#define IPL_ALIGN_32BYTES 32

#define IPL_ALIGN_DWORD   IPL_ALIGN_4BYTES
#define IPL_ALIGN_QWORD   IPL_ALIGN_8BYTES

#define IPL_BORDER_CONSTANT   0
#define IPL_BORDER_REPLICATE  1
#define IPL_BORDER_REFLECT    2
#define IPL_BORDER_WRAP       3

typedef struct _IplImage
{
    int  nSize;         /* sizeof(IplImage) */
    int  ID;            /* version (=0)*/
    int  nChannels;     /* Most of OpenCV functions support 1,2,3 or 4 channels */
    int  alphaChannel;  /* ignored by OpenCV */
    int  depth;         /* pixel depth in bits: IPL_DEPTH_8U, IPL_DEPTH_8S, IPL_DEPTH_16S,
                           IPL_DEPTH_32S, IPL_DEPTH_32F and IPL_DEPTH_64F are supported */
    char colorModel[4]; /* ignored by OpenCV */
    char channelSeq[4]; /* ditto */
    int  dataOrder;     /* 0 - interleaved color channels, 1 - separate color channels.
                           cvCreateImage can only create interleaved images */
    int  origin;        /* 0 - top-left origin,
                           1 - bottom-left origin (Windows bitmaps style) */
    int  align;         /* Alignment of image rows (4 or 8).
                           OpenCV ignores it and uses widthStep instead */
    int  width;         /* image width in pixels */
    int  height;        /* image height in pixels */
    struct _IplROI *roi;/* image ROI. if NULL, the whole image is selected */
    struct _IplImage *maskROI; /* must be NULL */
    void  *imageId;     /* ditto */
    struct _IplTileInfo *tileInfo; /* ditto */
    int  imageSize;     /* image data size in bytes
                           (==image->height*image->widthStep
                           in case of interleaved data)*/
    char *imageData;  /* pointer to aligned image data */
    int  widthStep;   /* size of aligned image row in bytes */
    int  BorderMode[4]; /* ignored by OpenCV */
    int  BorderConst[4]; /* ditto */
    char *imageDataOrigin; /* pointer to very origin of image data
                              (not necessarily aligned) -
                              needed for correct deallocation */
}
IplImage;

typedef struct _IplTileInfo IplTileInfo;

typedef struct _IplROI
{
    int  coi; /* 0 - no COI (all channels are selected), 1 - 0th channel is selected ...*/
    int  xOffset;
    int  yOffset;
    int  width;
    int  height;
}
IplROI;

typedef struct _IplConvKernel
{
    int  nCols;
    int  nRows;
    int  anchorX;
    int  anchorY;
    int *values;
    int  nShiftR;
}
IplConvKernel;

typedef struct _IplConvKernelFP
{
    int  nCols;
    int  nRows;
    int  anchorX;
    int  anchorY;
    float *values;
}
IplConvKernelFP;

#define IPL_IMAGE_HEADER 1
#define IPL_IMAGE_DATA   2
#define IPL_IMAGE_ROI    4

#endif/*HAVE_IPL*/

/* extra border mode */
#define IPL_BORDER_REFLECT_101    4

#define IPL_IMAGE_MAGIC_VAL  ((int)sizeof(IplImage))
#define CV_TYPE_NAME_IMAGE "opencv-image"

#define CV_IS_IMAGE_HDR(img) \
    ((img) != NULL && ((const IplImage*)(img))->nSize == sizeof(IplImage))

#define CV_IS_IMAGE(img) \