Initial commit of early-clip branch of flam3 into google code.

git-svn-id: https://flam3.googlecode.com/svn/trunk@3 77852712-ef1d-11de-8684-7d64432d61a3

src/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;
+   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