11 changes: 8 additions & 3 deletions src/core/raster/qgscubicrasterresampler.h
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Original file line number Diff line number Diff line change
Expand Up @@ -34,11 +34,13 @@ class QgsCubicRasterResampler: public QgsRasterResampler
static void yDerivativeMatrix( int nCols, int nRows, double* matrix, const int* colorMatrix );

void calculateControlPoints( int nCols, int nRows, int currentRow, int currentCol, int* redMatrix, int* greenMatrix, int* blueMatrix,
double* xDerivativeMatrixRed, double* xDerivativeMatrixGreen, double* xDerivativeMatrixBlue,
double* yDerivativeMatrixRed, double* yDerivativeMatrixGreen, double* yDerivativeMatrixBlue );
int* alphaMatrix, double* xDerivativeMatrixRed, double* xDerivativeMatrixGreen, double* xDerivativeMatrixBlue,
double* xDerivativeMatrixAlpha, double* yDerivativeMatrixRed, double* yDerivativeMatrixGreen, double* yDerivativeMatrixBlue,
double* yDerivativeMatrixAlpha );

/**Use cubic curve interpoation at the borders of the raster*/
QRgb curveInterpolation( QRgb pt1, QRgb pt2, double t, double d1red, double d1green, double d1blue , double d2red, double d2green, double d2blue );
QRgb curveInterpolation( QRgb pt1, QRgb pt2, double t, double d1red, double d1green, double d1blue, double d1alpha, double d2red, double d2green,
double d2blue, double d2alpha );

static double calcBernsteinPoly( int n, int i, double t );
static int lower( int n, int i );
Expand All @@ -56,6 +58,9 @@ class QgsCubicRasterResampler: public QgsRasterResampler
//blue
double cBlue00; double cBlue10; double cBlue20; double cBlue30; double cBlue01; double cBlue11; double cBlue21; double cBlue31;
double cBlue02; double cBlue12; double cBlue22; double cBlue32; double cBlue03; double cBlue13; double cBlue23; double cBlue33;
//alpha
double cAlpha00; double cAlpha10; double cAlpha20; double cAlpha30; double cAlpha01; double cAlpha11; double cAlpha21; double cAlpha31;
double cAlpha02; double cAlpha12; double cAlpha22; double cAlpha32; double cAlpha03; double cAlpha13; double cAlpha23; double cAlpha33;
};

#endif // QGSCUBICRASTERRESAMPLER_H