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#ifndef __NR_GRADIENT_H__
#define __NR_GRADIENT_H__
/*
* Pixel buffer rendering library
*
* Authors:
* Lauris Kaplinski <lauris@kaplinski.com>
*
* This code is in public domain
*/
#include <libnr/nr-matrix.h>
#include <libnr/nr-render.h>
#define NR_GRADIENT_VECTOR_LENGTH 1024
enum {
NR_GRADIENT_SPREAD_PAD,
NR_GRADIENT_SPREAD_REFLECT,
NR_GRADIENT_SPREAD_REPEAT
};
/* Radial */
struct NRRGradientRenderer {
NRRenderer renderer;
const unsigned char *vector;
unsigned int spread;
NRMatrix px2gs;
float cx, cy;
float fx, fy;
float r;
float C;
};
NRRenderer *nr_rgradient_renderer_setup (NRRGradientRenderer *rgr,
const unsigned char *cv,
unsigned int spread,
const NRMatrix *gs2px,
float cx, float cy,
float fx, float fy,
float r);
#endif
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