Bibliothèque de traitements d'images en virgule flottante. http://la.buvette.org/photos/cumul/
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FloatImg/Fonderie/filterstack.c

193 lines
3.9 KiB

/*
* filterstack.c
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../floatimg.h"
#include "crapulator.h"
#include "filterstack.h"
// #undef DEBUG_LEVEL
// #define DEBUG_LEVEL 1
/* -------------------------------------------------------------- */
extern int verbosity;
static FilterSlot *stack_slots;
static int nbre_filters, idx_slot;
/* -------------------------------------------------------------- */
int filterstack_init(int nbre)
{
FilterSlot *fsptr;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %d )\n", __func__, nbre);
#endif
if (NULL != stack_slots) {
fprintf(stderr, "ERR stack_slots = %p\n",stack_slots);
return -1;
}
fsptr = calloc(nbre, sizeof(FilterSlot));
if (NULL == fsptr) {
fprintf(stderr, "%s : no memory\n", __func__);
exit(1);
}
stack_slots = fsptr;
nbre_filters = nbre;
idx_slot = 0;
fprintf(stderr, "%s: stack at %p\n", __func__, stack_slots);
return 0;
}
/* -------------------------------------------------------------- */
int filterstack_add(int code, int ival, float fval)
{
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %d %d %f )\n", __func__, code, ival, fval);
#endif
if (NULL==stack_slots) {
fprintf(stderr, "%s: NULL statck !\n", __func__);
exit(1);
}
if (idx_slot == nbre_filters) {
fprintf(stderr, "%s: stack is full\n", __func__);
return -1;
}
stack_slots[idx_slot].numero = code;
stack_slots[idx_slot].ival = ival;
stack_slots[idx_slot].fval = fval;
idx_slot++;
return 0;
}
/* -------------------------------------------------------------- */
int filterstack_list(const char *txt)
{
int idx;
if (NULL==stack_slots) {
fprintf(stderr, "%s: NULL statck !\n", __func__);
exit(1);
}
fprintf(stderr, "------- %-20s --------\n", txt);
fprintf(stderr, "stack at %p, size %d, current %d\n",
stack_slots, nbre_filters, idx_slot);
fprintf(stderr, "idx fx# ival fval\n");
for (idx=0; idx<idx_slot; idx++) {
fprintf(stderr, "%3d %3d %3d %f\n", idx,
stack_slots[idx].numero,
stack_slots[idx].ival,
stack_slots[idx].fval);
}
return 0;
}
/* -------------------------------------------------------------- */
int filterstack_run(FloatImg *target, int notused)
{
int idx, foo;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %d )\n", __func__, target, notused);
#endif
if (NULL==stack_slots) {
fprintf(stderr, "%s: NULL statck !\n", __func__);
exit(1);
}
for (idx=0; idx<idx_slot; idx++) {
if (verbosity > 1)
fprintf(stderr, "%d : effect %2d on %p\n",
idx, stack_slots[idx].numero, target);
foo = crapulator(target, stack_slots[idx].numero,
stack_slots[idx].fval);
if (foo) {
fprintf(stderr, "crapulator error %d\n", foo);
return foo;
}
}
return 0;
}
/* -------------------------------------------------------------- */
int load_stack_from_file(char *fname, int notused)
{
FILE *fp;
// int a, b;
// float f;
// char line[100];
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( '%s' %d )\n", __func__, fname, notused);
#endif
if (NULL==stack_slots) {
fprintf(stderr, "%s: NULL statck !\n", __func__);
exit(1);
}
if (NULL==(fp=fopen(fname, "r"))) {
perror(fname);
return -1;
}
/*
* here was dragons
*/
/* hadoc parser ? */
fclose(fp);
return -1;
}
/* -------------------------------------------------------------- */
int parse_filter_chain(const char *argument)
{
char *cptr;
int value, foo;
fprintf(stderr, "\n%s: arg = '%s'\n", __func__, argument);
foo = filterstack_init(8);
if (foo) {
fprintf(stderr, "%s: filterstack init --> %d\n", __func__, foo);
return foo;
}
for (;;) {
cptr = strtok(argument, ":");
// fprintf(stderr, "cptr %p\n", cptr);
if (NULL==cptr) break;
argument = NULL;
// fprintf(stderr, " parsing '%s'\n", cptr);
if (1 == sscanf(cptr, "%d", &value)) {
foo = filterstack_add(value, 1, 1.0);
if (foo) {
fprintf(stderr, "%s: err %d add\n",
__func__, foo);
}
}
}
if (verbosity) filterstack_list(__func__);
return 0;
}
/* ----------------------------------------------------------- */