Bibliothèque de traitements d'images en virgule flottante.
http://la.buvette.org/photos/cumul/
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198 lines
4.2 KiB
198 lines
4.2 KiB
/*
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* Fonctions de la Fonderie du Cumul
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* Du code bien cracra / tTh / Tetalab
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <malloc.h>
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#include "../floatimg.h"
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#include "fifo.h"
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#include "crapulator.h"
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#include "filterstack.h"
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/* -------------------------------------------------------------- */
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/* global vars from main
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*/
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extern int verbosity;
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/* private vars of this module - it was very dirty,
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* but simple and efficient.
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*/
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static A_Fifo g_fifo;
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/* -------------------------------------------------------------- */
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static int big_adder(FloatImg *from, FloatImg *to)
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{
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int size, idx;
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size = from->width * from->height;
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for (idx=0; idx<size; idx++) to->R[idx] += from->R[idx];
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for (idx=0; idx<size; idx++) to->G[idx] += from->G[idx];
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for (idx=0; idx<size; idx++) to->B[idx] += from->B[idx];
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return 0;
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}
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/* -------------------------------------------------------------- */
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/*
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* 97% of the total run time was in that function \o_
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*/
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int faire_la_somme(A_Fifo *pfifo, FloatImg *destination, int step)
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{
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int idx, foo;
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FloatImg *pdest;
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#if DEBUG_LEVEL
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fprintf(stderr, ">>> %s ( %p %p %d )\n", __func__,
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pfifo, destination, step);
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#endif
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if (step<1){
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fprintf(stderr, "***** %s invalid step %d\n", __func__, step);
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exit(1);
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}
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if (NULL==destination) {
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pdest = &(pfifo->total); }
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else {
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pdest = destination; }
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fimg_clear(pdest);
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for (idx=0; idx<pfifo->nbslots; idx += step) {
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foo = big_adder(&(pfifo->slots[idx]), pdest);
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if (foo)
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{
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fprintf(stderr, "%s: err %d on add_2\n", __func__, foo);
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abort();
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}
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}
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#if 0
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fprintf(stderr, "*** %s:%s writing debugB file ***\n",
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__FILE__, __func__);
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fimg_dump_to_file(&g_fifo.total, "debugB.fimg", 0);
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#endif
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return 0;
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}
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/* -------------------------------------------------------------- */
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/* called by 'fonderie.c'
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*/
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int export_fifo(char *fname, int notused)
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{
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int foo, type;
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#if DEBUG_LEVEL
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fprintf(stderr, ">>> %s ( '%s' %d )\n", __func__, fname, step);
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#endif
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foo = faire_la_somme(&g_fifo, NULL, 1);
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foo = filterstack_run(1, &g_fifo.total, 0);
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if (foo) {
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fprintf(stderr, "%s: ERR post process picture -> %d\n",
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__func__, foo);
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return foo;
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}
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#if 0
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fimg_dump_to_file(&g_fifo.total, "outputXXX.fimg", 0);
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#endif
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foo = fimg_export_picture(&g_fifo.total, fname, 0);
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if (foo) {
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fprintf(stderr, "ERR EXPORT '%s' is %d\n", fname, foo);
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exit(3);
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}
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return 0;
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}
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/* -------------------------------------------------------------- */
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int insert_picture(FloatImg *src)
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{
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FloatImg *dst;
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int nbre, foo;
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#if DEBUG_LEVEL
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fprintf(stderr, ">>> %s ( %p )\n", __func__, src);
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#endif
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dst = &g_fifo.slots[g_fifo.next];
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nbre = dst->width * dst->height * sizeof(float);
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memcpy(dst->R, src->R, nbre);
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memcpy(dst->G, src->G, nbre);
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memcpy(dst->B, src->B, nbre);
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/* XXX
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fprintf(stderr, "*** %s:%s writing debugA file ***\n",
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__FILE__, __func__);
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foo = fimg_dump_to_file(dst, "debugA.fimg", 0);
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fprintf(stderr, " ok file dumped %d\n", foo);
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XXX */
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g_fifo.next++; g_fifo.next %= g_fifo.nbslots;
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if (verbosity > 2) fprintf(stderr, "%s : next slot %d\n",
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__func__, g_fifo.next);
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return 0;
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}
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/* -------------------------------------------------------------- */
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/*
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* this function must have a lot of new parameters,
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* -- filetype of exported pictures...
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*/
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int create_fifo(int nbslot, int w, int h, int imgtype)
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{
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int foo, idx;
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#if DEBUG_LEVEL
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fprintf(stderr, ">>> %s ( %d %dx%d %d )\n", __func__,
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nbslot, w, h, imgtype);
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#endif
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memset(&g_fifo, 0, sizeof(A_Fifo));
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g_fifo.nbslots = nbslot;
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g_fifo.slots = calloc(nbslot, sizeof(FloatImg));
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if (NULL==g_fifo.slots) abort();
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for (idx=0; idx<nbslot; idx++) {
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foo = fimg_create(&g_fifo.slots[idx], w, h, imgtype);
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if (foo) {
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fprintf(stderr, "%s idx %d err%d\n", __func__, idx, foo);
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return foo;
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}
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fimg_clear(&g_fifo.slots[idx]);
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}
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foo = fimg_create(&g_fifo.total, w, h, imgtype);
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g_fifo.next = 0;
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g_fifo.magic = MAGIC_FIFO;
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return 0;
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}
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/* -------------------------------------------------------------- */
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/*
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* omfg ! I've write a setter !
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*/
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int set_fifo_output_format(int filetype)
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{
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#if DEBUG_LEVEL
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fprintf(stderr, ">>> %s ( %d )\n", __func__, filetype);
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#endif
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g_fifo.export_type = filetype;
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return -1;
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}
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