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#include "filter.h"
void SetDistance8( Image* im, Image* pano, PTRect *theRect, int showprogress );
void SetDistanceImage8 ( Image* im, Image* pano, PTRect *theRect, int showprogress, int feather );
int merge8 ( Image *dst, Image *src, int feather, int showprogress, int seam );
void mergeAlpha8 ( Image *im, unsigned char *alpha, int feather, PTRect *theRect );
void SetDistance16( Image* im, Image* pano, PTRect *theRect, int showprogress );
void SetDistanceImage16 ( Image* im, Image* pano, PTRect *theRect, int showprogress, int feather );
int merge16 ( Image *dst, Image *src, int feather, int showprogress, int seam );
void mergeAlpha16 ( Image *im, unsigned char *alpha, int feather, PTRect *theRect );
#define PIXEL_TYPE unsigned char
#define PIXEL_MAX UCHAR_MAX
#define DBL_TO_PIX(a,b) DBL_TO_UC(a,b)
#define _SetDistance SetDistance8
#define _SetDistanceImage SetDistanceImage8
#define _merge merge8
#define _mergeAlpha mergeAlpha8
#include "seamer_.c"
#undef PIXEL_TYPE
#undef PIXEL_MAX
#undef DBL_TO_PIX
#undef _SetDistance
#undef _SetDistanceImage
#undef _merge
#undef _mergeAlpha
#define PIXEL_TYPE unsigned short
#define PIXEL_MAX USHRT_MAX
#define DBL_TO_PIX(a,b) DBL_TO_US(a,b)
#define _SetDistance SetDistance16
#define _SetDistanceImage SetDistanceImage16
#define _merge merge16
#define _mergeAlpha mergeAlpha16
#include "seamer_.c"
int merge ( Image *dst, Image *src, int feather, int showprogress, int seam )
{
if( dst->bitsPerPixel == 48 || dst->bitsPerPixel == 64 )
return merge16 ( dst, src, feather, showprogress, seam );
else
return merge8 ( dst, src, feather, showprogress, seam );
}
void mergeAlpha ( Image *im, unsigned char *alpha, int feather, PTRect *theRect )
{
if( im->bitsPerPixel == 48 || im->bitsPerPixel == 64 )
mergeAlpha16 ( im, alpha, feather, theRect );
else
mergeAlpha8 ( im, alpha, feather, theRect );
}
double GetBlendfactor( int d, int s, int feather )
{
double sfactor;
sfactor = (-1.0 / (2.0*feather)) * d + 0.5 * ( (double)s / (double)feather + 1.0 );
// randomize
return sfactor * ( 1.0 - BLEND_RANDOMIZE * rand() / (double)RAND_MAX );
}
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