1 /* 2 FLAM3 - cosmic recursive fractal flames 3 Copyright (C) 1992-2009 Spotworks LLC 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. 17 */ 18 19 #ifndef filters_included 20 #define filters_included 21 22 #include "private.h" 23 24 #define DE_THRESH 100 25 26 typedef struct { 27 int max_filtered_counts; 28 int max_filter_index; 29 int kernel_size; 30 double *filter_widths; 31 double *filter_coefs; 32 } flam3_de_helper; 33 34 extern double flam3_spatial_support[flam3_num_spatialfilters]; 35 36 double flam3_spatial_filter(int knum, double x); 37 int flam3_create_spatial_filter(flam3_frame *spec, int field, double **filter); 38 flam3_de_helper flam3_create_de_filters(double max_rad, double min_rad, double curve, int ss); 39 double flam3_create_temporal_filter(int numsteps, int filter_type, double filter_exp, double filter_width, 40 double **temporal_filter, double **temporal_deltas); 41 42 #endif 43 44 45