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/* Libart_LGPL - library of basic graphic primitives
* Copyright (C) 1998 Raph Levien
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __ART_SVP_RENDER_AA_H__
#define __ART_SVP_RENDER_AA_H__
/* The spiffy antialiased renderer for sorted vector paths. */
#include "art.h"
typedef struct _ArtSVPRenderAAStep ArtSVPRenderAAStep;
typedef struct _ArtSVPRenderAAIter ArtSVPRenderAAIter;
struct _ArtSVPRenderAAStep {
int x;
int delta; /* stored with 16 fractional bits */
};
ArtSVPRenderAAIter *
art_svp_render_aa_iter(const ArtSVP *svp,
int x0, int y0, int x1, int y1);
void
art_svp_render_aa_iter_step(ArtSVPRenderAAIter *iter, int *p_start,
ArtSVPRenderAAStep **p_steps, int *p_n_steps);
void
art_svp_render_aa_iter_done(ArtSVPRenderAAIter *iter);
void
art_svp_render_aa(const ArtSVP *svp,
int x0, int y0, int x1, int y1,
void (*callback)(void *callback_data,
int y,
int start,
ArtSVPRenderAAStep *steps, int n_steps),
void *callback_data);
#endif /* __ART_SVP_RENDER_AA_H__ */
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