int ar2GetImageValue2(const ARParamLT *cparamLT, const float trans[3][4], const AR2ImageT *image,
const float sx, const float sy, const int blurLevel, ARUint8 *pBW1, ARUint8 *pBW2, ARUint8 *pBW3)
{
float mx, my;
float iix, iiy;
int ix, iy;
if (ar2ScreenCoord2MarkerCoord(cparamLT, trans, sx, sy, &mx, &my) < 0)
return -1;
ar2MarkerCoord2ImageCoord(image->xsize, image->ysize, image->dpi, mx, my, &iix, &iiy);
ix = (int)(iix + 0.5);
iy = (int)(iiy + 0.5);
if (ix < 0 || ix >= image->xsize
|| iy < 0 || iy >= image->ysize)
return -1;
if (blurLevel < 1)
blurLevel = 1;
if (blurLevel >= AR2_BLUR_IMAGE_MAX - 1)
blurLevel = AR2_BLUR_IMAGE_MAX - 2;
*pBW1 = image->imgBWBlur[blurLevel - 1][iy * image->xsize + ix];
*pBW2 = image->imgBWBlur[blurLevel][iy * image->xsize + ix];
*pBW3 = image->imgBWBlur[blurLevel + 1][iy * image->xsize + ix];
return 0;
}
int ar2GetImageValue( const ARParamLT *cparamLT, const float trans[3][4], const AR2ImageT *image,
const float sx, const float sy, const int blurLevel, ARUint8 *pBW )
{
float mx, my;
float iix, iiy;
int ix, iy;
if( ar2ScreenCoord2MarkerCoord( cparamLT, trans, sx, sy, &mx, &my ) < 0 ) return -1;
ar2MarkerCoord2ImageCoord( image->xsize, image->ysize, image->dpi, mx, my, &iix, &iiy );
ix = (int)(iix + 0.5F);
iy = (int)(iiy + 0.5F);
if( ix < 0 || ix >= image->xsize
|| iy < 0 || iy >= image->ysize ) return -1;
*pBW = image->imgBWBlur[blurLevel][iy*image->xsize+ix];
return 0;
}