X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=lib%2Fart%2Fart_svp_render_aa.h;fp=lib%2Fart%2Fart_svp_render_aa.h;h=7e1bddbd50340007783dec181de41a8ec00d911f;hb=d6f4d2c57774930556d4dd226139cd99df23dffd;hp=0000000000000000000000000000000000000000;hpb=418ef05b5d0b74e6f19200ffa40bcc3afccb5029;p=swftools.git diff --git a/lib/art/art_svp_render_aa.h b/lib/art/art_svp_render_aa.h new file mode 100644 index 0000000..7e1bddb --- /dev/null +++ b/lib/art/art_svp_render_aa.h @@ -0,0 +1,67 @@ +/* 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. */ + +#ifdef LIBART_COMPILATION +#include "art_svp.h" +#else +#include "art_svp.h" +#endif + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +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); + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* __ART_SVP_RENDER_AA_H__ */