diff options
Diffstat (limited to 'converter/other/fiasco/codec/wfalib.h')
| -rw-r--r-- | converter/other/fiasco/codec/wfalib.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/converter/other/fiasco/codec/wfalib.h b/converter/other/fiasco/codec/wfalib.h new file mode 100644 index 00000000..4622fcd2 --- /dev/null +++ b/converter/other/fiasco/codec/wfalib.h @@ -0,0 +1,66 @@ +/* + * wfalib.h + * + * Written by: Ullrich Hafner + * + * This file is part of FIASCO («F»ractal «I»mage «A»nd «S»equence «CO»dec) + * Copyright (C) 1994-2000 Ullrich Hafner <hafner@bigfoot.de> + */ + +/* + * $Date: 2000/06/14 20:50:51 $ + * $Author: hafner $ + * $Revision: 5.1 $ + * $State: Exp $ + */ + +#ifndef _WFALIB_H +#define _WFALIB_H + +#include "types.h" +#include "wfa.h" +#include "list.h" + +typedef struct range_sort +{ + u_word_t *range_state; + byte_t *range_label; + u_word_t *range_max_domain; + bool_t *range_subdivided; + unsigned range_no; +} range_sort_t; + +bool_t +locate_delta_images (wfa_t *wfa); +void +sort_ranges (unsigned state, unsigned *domain, + range_sort_t *rs, const wfa_t *wfa); +bool_t +find_range (unsigned x, unsigned y, unsigned band, + const wfa_t *wfa, unsigned *range_state, unsigned *range_label); +void +compute_spiral (int *vorder, unsigned image_width, unsigned image_height, + unsigned tiling_exp, bool_t inc_spiral); +void +locate_subimage (unsigned orig_level, unsigned level, unsigned bintree, + unsigned *x, unsigned *y, unsigned *width, unsigned *height); +void +copy_wfa (wfa_t *dst, const wfa_t *src); +void +remove_states (unsigned from, wfa_t *wfa); +void +append_edge (unsigned from, unsigned into, real_t weight, + unsigned label, wfa_t *wfa); +word_t * +compute_hits (unsigned from, unsigned to, unsigned n, const wfa_t *wfa); +real_t +compute_final_distribution (unsigned state, const wfa_t *wfa); +wfa_t * +alloc_wfa (bool_t coding); +void +free_wfa (wfa_t *wfa); +bool_t +locate_delta_images (wfa_t *wfa); + +#endif /* not _WFALIB_H */ + |