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_ALPHAGAMMA_H__ 21 #define __ART_ALPHAGAMMA_H__ 22 23 /* Alphagamma tables */ 24 25 #ifdef LIBART_COMPILATION 26 #include "art_misc.h" 27 #else 28 #include <libart_lgpl/art_misc.h> 29 #endif 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif /* __cplusplus */ 34 35 typedef struct _ArtAlphaGamma ArtAlphaGamma; 36 37 struct _ArtAlphaGamma { 38 /*< private >*/ 39 double gamma; 40 int invtable_size; 41 int table[256]; 42 art_u8 invtable[1]; 43 }; 44 45 ArtAlphaGamma * 46 art_alphagamma_new (double gamma); 47 48 void 49 art_alphagamma_free (ArtAlphaGamma *alphagamma); 50 51 #ifdef __cplusplus 52 } 53 #endif /* __cplusplus */ 54 55 #endif /* __ART_SVP_H__ */ 56