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Diffstat (limited to 'private.h')
| -rw-r--r-- | private.h | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/private.h b/private.h new file mode 100644 index 0000000..9800f82 --- /dev/null +++ b/private.h @@ -0,0 +1,154 @@ +/* + FLAM3 - cosmic recursive fractal flames + Copyright (C) 1992-2009 Spotworks LLC + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef private_included +#define private_included + +#include "flam3.h" +#include "config.h" +#include <stdlib.h> + +#include <ctype.h> +#include <time.h> +#include <string.h> +#include <libxml/parser.h> + +#ifdef _WIN32 +#define basename(x) strdup(x) +#define snprintf _snprintf +#define _USE_MATH_DEFINES +#else +#include <unistd.h> +#include <libgen.h> +#endif + +#include <math.h> + +#ifdef HAVE_LIBPTHREAD +#include <pthread.h> +#endif + +#define PREFILTER_WHITE 255 +#define EPS (1e-10) +#define CMAP_SIZE 256 +#define CMAP_SIZE_M1 255 +#define rbit() (flam3_random_bit()) +#define flam3_variation_none (-1) +#define max_specified_vars (100) +#define vlen(x) (sizeof(x)/sizeof(*x)) + + +#ifdef _WIN32 + +#ifndef M_PI + #define M_PI 3.1415926536 + #define M_1_PI 0.3183098862 + #define M_PI_4 0.7853981634 +#endif +#define random() (rand() ^ (rand()<<15)) +#define srandom(x) (srand(x)) +extern int getpid(); +#define rint(A) floor((A)+(((A) < 0)? -0.5 : 0.5)) +#endif + +#define argi(s,d) ((ai = getenv(s)) ? atoi(ai) : (d)) +#define argf(s,d) ((ai = getenv(s)) ? atof(ai) : (d)) +#define args(s,d) ((ai = getenv(s)) ? ai : (d)) + +void docstring(); + +/* Structures for passing parameters to iteration threads */ +typedef struct { + unsigned short *xform_distrib; /* Distribution of xforms based on weights */ + flam3_frame *spec; /* Frame contains timing information */ + double bounds[4]; /* Corner coords of viewable area */ + double rot[2][2]; /* Rotation transformation */ + double size[2]; + int width, height; /* buffer width/height */ + double ws0, wb0s0, hs1, hb1s1; /* shortcuts for indexing */ + flam3_palette_entry *dmap; /* palette */ + double color_scalar; /* <1.0 if non-uniform motion blur is set */ + void *buckets; /* Points to the first accumulator */ + double badvals; /* accumulates all badvalue resets */ + double batch_size; + int temporal_sample_num,ntemporal_samples; + int batch_num, nbatches, aborted, cmap_size; + time_t *progress_timer; + time_t *progress_timer_history; + double *progress_history; + int *progress_history_mark; +#ifdef HAVE_LIBPTHREAD + /* mutex for bucket accumulator */ + pthread_mutex_t bucket_mutex; +#endif + +} flam3_iter_constants; + +typedef struct { + + double tx,ty; /* Starting coordinates */ + + double precalc_atan, precalc_sina; /* Precalculated, if needed */ + double precalc_cosa, precalc_sqrt; + double precalc_sumsq,precalc_atanyx; + + flam3_xform *xform; /* For the important values */ + + /* Output Coords */ + + double p0, p1; + + /* Pointer to the isaac RNG state */ + randctx *rc; + +} flam3_iter_helper; + +typedef struct { + double *iter_storage; /* Storage for iteration coordinates */ + randctx rc; /* Thread-unique ISAAC seed */ + flam3_genome cp; /* Full copy of genome for use by the thread */ + int first_thread; + int timer_initialize; + flam3_iter_constants *fic; /* Constants for render */ +} flam3_thread_helper; + +double flam3_sinc(double x); + +#define flam3_num_spatialfilters 14 +double flam3_gaussian_filter(double x); +double flam3_hermite_filter(double t); +double flam3_box_filter(double t); +double flam3_triangle_filter(double t); +double flam3_bell_filter(double t); +double flam3_b_spline_filter(double t); +double flam3_lanczos3_filter(double t); +double flam3_lanczos2_filter(double t); +double flam3_mitchell_filter(double t); +double flam3_blackman_filter(double x); +double flam3_catrom_filter(double x); +double flam3_hamming_filter(double x); +double flam3_hanning_filter(double x); +double flam3_quadratic_filter(double x); + +double flam3_spatial_filter(int knum, double x); + +#define flam3_mitchell_b (1.0 / 3.0) +#define flam3_mitchell_c (1.0 / 3.0) + + +#endif |