1 /* Libart_LGPL - library of basic graphic primitives 2 * Copyright (C) 1998 Raph Levien 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public 15 * License along with this library; if not, write to the 16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 17 * Boston, MA 02111-1307, USA. 18 */ 19 20 #ifndef __ART_SVP_RENDER_AA_H__ 21 #define __ART_SVP_RENDER_AA_H__ 22 23 /* The spiffy antialiased renderer for sorted vector paths. */ 24 25 #ifdef LIBART_COMPILATION 26 #include "art_svp.h" 27 #else 28 #include <libart_lgpl/art_svp.h> 29 #endif 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif /* __cplusplus */ 34 35 typedef struct _ArtSVPRenderAAStep ArtSVPRenderAAStep; 36 typedef struct _ArtSVPRenderAAIter ArtSVPRenderAAIter; 37 38 struct _ArtSVPRenderAAStep { 39 int x; 40 int delta; /* stored with 16 fractional bits */ 41 }; 42 43 ArtSVPRenderAAIter * 44 art_svp_render_aa_iter (const ArtSVP *svp, 45 int x0, int y0, int x1, int y1); 46 47 void 48 art_svp_render_aa_iter_step (ArtSVPRenderAAIter *iter, int *p_start, 49 ArtSVPRenderAAStep **p_steps, int *p_n_steps); 50 51 void 52 art_svp_render_aa_iter_done (ArtSVPRenderAAIter *iter); 53 54 void 55 art_svp_render_aa (const ArtSVP *svp, 56 int x0, int y0, int x1, int y1, 57 void (*callback) (void *callback_data, 58 int y, 59 int start, 60 ArtSVPRenderAAStep *steps, int n_steps), 61 void *callback_data); 62 63 #ifdef __cplusplus 64 } 65 #endif /* __cplusplus */ 66 67 #endif /* __ART_SVP_RENDER_AA_H__ */ 68