diff options
Diffstat (limited to 'converter/other/fiasco/codec/ip.c')
| -rw-r--r-- | converter/other/fiasco/codec/ip.c | 76 |
1 files changed, 38 insertions, 38 deletions
diff --git a/converter/other/fiasco/codec/ip.c b/converter/other/fiasco/codec/ip.c index 56b0ae9a..18257a06 100644 --- a/converter/other/fiasco/codec/ip.c +++ b/converter/other/fiasco/codec/ip.c @@ -2,7 +2,7 @@ * ip.c: Computation of inner products * * Written by: Ullrich Hafner - * + * * This file is part of FIASCO (Fractal Image And Sequence COdec) * Copyright (C) 1994-2000 Ullrich Hafner */ @@ -27,40 +27,40 @@ /***************************************************************************** prototypes - + *****************************************************************************/ -static real_t +static real_t standard_ip_image_state (unsigned address, unsigned level, unsigned domain, const coding_t *c); -static real_t +static real_t standard_ip_state_state (unsigned domain1, unsigned domain2, unsigned level, const coding_t *c); /***************************************************************************** public code - + *****************************************************************************/ -real_t +real_t get_ip_image_state (unsigned image, unsigned address, unsigned level, unsigned domain, const coding_t *c) /* * Return value: * Inner product between 'image' ('address') and - * 'domain' at given 'level' + * 'domain' at given 'level' */ { if (level <= c->options.images_level) { /* - * Compute the inner product in the standard way by multiplying + * Compute the inner product in the standard way by multiplying * the pixel-values of the given domain and range image. - */ + */ return standard_ip_image_state (address, level, domain, c); } - else + else { /* * Use the already computed inner products stored in 'ip_images_states' @@ -69,29 +69,29 @@ get_ip_image_state (unsigned image, unsigned address, unsigned level, } } -void +void compute_ip_images_state (unsigned image, unsigned address, unsigned level, unsigned n, unsigned from, const wfa_t *wfa, coding_t *c) /* * Compute the inner products between all states * 'from', ... , 'wfa->max_states' and the range images 'image' - * (and childs) up to given level. + * (and children) up to given level. * * No return value. * * Side effects: * inner product tables 'c->ip_images_states' are updated - */ + */ { - if (level > c->options.images_level) + if (level > c->options.images_level) { unsigned state, label; if (level > c->options.images_level + 1) /* recursive computation */ compute_ip_images_state (MAXLABELS * image + 1, address * MAXLABELS, level - 1, MAXLABELS * n, from, wfa, c); - + /* * Compute inner product <f, Phi_i> */ @@ -102,7 +102,7 @@ compute_ip_images_state (unsigned image, unsigned address, unsigned level, unsigned edge, count; int domain; real_t *dst, *src; - + if (ischild (domain = wfa->tree [state][label])) { if (level > c->options.images_level + 1) @@ -116,9 +116,9 @@ compute_ip_images_state (unsigned image, unsigned address, unsigned level, else { unsigned newadr = address * MAXLABELS + label; - + dst = c->ip_images_state [state] + image; - + for (count = n; count; count--, newadr += MAXLABELS) *dst++ += standard_ip_image_state (newadr, level - 1, domain, c); @@ -128,7 +128,7 @@ compute_ip_images_state (unsigned image, unsigned address, unsigned level, edge++) { real_t weight = wfa->weight [state][label][edge]; - + if (level > c->options.images_level + 1) { dst = c->ip_images_state [state] + image; @@ -142,7 +142,7 @@ compute_ip_images_state (unsigned image, unsigned address, unsigned level, unsigned newadr = address * MAXLABELS + label; dst = c->ip_images_state [state] + image; - + for (count = n; count; count--, newadr += MAXLABELS) *dst++ += weight * standard_ip_image_state (newadr, level - 1, @@ -153,7 +153,7 @@ compute_ip_images_state (unsigned image, unsigned address, unsigned level, } } -real_t +real_t get_ip_state_state (unsigned domain1, unsigned domain2, unsigned level, const coding_t *c) /* @@ -164,12 +164,12 @@ get_ip_state_state (unsigned domain1, unsigned domain2, unsigned level, if (level <= c->options.images_level) { /* - * Compute the inner product in the standard way by multiplying + * Compute the inner product in the standard way by multiplying * the pixel-values of both state-images - */ + */ return standard_ip_state_state (domain1, domain2, level, c); } - else + else { /* * Use already computed inner products stored in 'ip_images_states' @@ -181,7 +181,7 @@ get_ip_state_state (unsigned domain1, unsigned domain2, unsigned level, } } -void +void compute_ip_states_state (unsigned from, unsigned to, const wfa_t *wfa, coding_t *c) /* @@ -192,7 +192,7 @@ compute_ip_states_state (unsigned from, unsigned to, * * Side effects: * inner product tables 'c->ip_states_state' are computed. - */ + */ { unsigned level; unsigned state1, state2; @@ -204,25 +204,25 @@ compute_ip_states_state (unsigned from, unsigned to, for (level = c->options.images_level + 1; level <= c->options.lc_max_level; level++) for (state1 = from; state1 <= to; state1++) - for (state2 = 0; state2 <= state1; state2++) + for (state2 = 0; state2 <= state1; state2++) if (need_image (state2, wfa)) { unsigned label; real_t ip = 0; - + for (label = 0; label < MAXLABELS; label++) { int domain1, domain2; unsigned edge1, edge2; real_t sum, weight2; - + if (ischild (domain1 = wfa->tree [state1][label])) { sum = 0; if (ischild (domain2 = wfa->tree [state2][label])) sum = get_ip_state_state (domain1, domain2, level - 1, c); - + for (edge2 = 0; isedge (domain2 = wfa->into [state2][label][edge2]); edge2++) @@ -238,12 +238,12 @@ compute_ip_states_state (unsigned from, unsigned to, edge1++) { real_t weight1 = wfa->weight [state1][label][edge1]; - + sum = 0; if (ischild (domain2 = wfa->tree [state2][label])) sum = get_ip_state_state (domain1, domain2, level - 1, c); - + for (edge2 = 0; isedge (domain2 = wfa->into [state2][label][edge2]); edge2++) @@ -262,10 +262,10 @@ compute_ip_states_state (unsigned from, unsigned to, /***************************************************************************** private code - + *****************************************************************************/ -static real_t +static real_t standard_ip_image_state (unsigned address, unsigned level, unsigned domain, const coding_t *c) /* @@ -283,18 +283,18 @@ standard_ip_image_state (unsigned address, unsigned level, unsigned domain, if (level > c->options.images_level) error ("We cannot interpret a Level %d image.", level); - + imageptr = &c->pixels [address * size_of_level (level)]; stateptr = c->images_of_state [domain] + address_of_level (level); - + for (i = size_of_level (level); i; i--) ip += *imageptr++ * *stateptr++; return ip; } -static real_t +static real_t standard_ip_state_state (unsigned domain1, unsigned domain2, unsigned level, const coding_t *c) /* @@ -315,7 +315,7 @@ standard_ip_state_state (unsigned domain1, unsigned domain2, unsigned level, state1ptr = c->images_of_state [domain1] + address_of_level (level); state2ptr = c->images_of_state [domain2] + address_of_level (level); - + for (i = size_of_level (level); i; i--) ip += *state1ptr++ * *state2ptr++; |