Bibliothèque de traitements d'images en virgule flottante. http://la.buvette.org/photos/cumul/
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 

402 lines
8.0 KiB

/*
* crapulator.c
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
#include "../floatimg.h"
#include "fifo.h"
#include "crapulator.h"
#include "glitches.h"
#include "sfx.h"
extern int verbosity;
/* -------------------------------------------------------------- */
static int trier_les_pixels(FloatImg *pimg)
{
FloatImg copy;
int foo;
fimg_clone(pimg, &copy, 1);
foo = fimg_qsort_rgb_a(pimg, &copy, 0);
if (foo) {
fprintf(stderr, "%s: err qsort rgb = %d\n", __func__, foo);
return foo;
}
incrustation_vignette(pimg, &copy, 0);
fimg_copy_data(&copy, pimg);
fimg_destroy(&copy);
return 0;
}
/* -------------------------------------------------------------- */
static int effect_3(FloatImg *image)
{
float value;
int foo;
value = fimg_get_maxvalue(image);
fimg_mul_cste(image, -1.0);
fimg_add_cste(image, value);
foo = fimg_count_negativ(image);
if (foo) {
fimg_dump_to_file(image, "err.fimg", 0);
fprintf(stderr, "%s negativ %d\n",
__func__, foo);
return -78;
}
return 0;
}
/* -------------------------------------------------------------- */
static int insitu_ctr2x2(FloatImg *pimg)
{
FloatImg img;
int retval;
fimg_clone(pimg, &img, 0);
retval = fimg_contour_2x2(pimg, &img, 0);
if (retval) {
fprintf(stderr, "%s : err contour %d\n",
__func__, retval);
exit(1);
}
fimg_copy_data(&img, pimg);
fimg_destroy(&img);
return 0;
}
/* -------------------------------------------------------------- */
static int insitu_filtre3x3(FloatImg *pimg, int typef)
{
FloatImg img;
int foo, retval;
FimgFilter3x3 *pfiltre;
FimgFilter3x3 lowpass = {
{
1.0, 2.0, 1.0,
2.0, 4.0, 2.0,
1.0, 2.0, 1.0,
},
16.0, 0.0
};
FimgFilter3x3 hipass = {
{
-1.0, -1.0, -1.0,
-1.0, 9.0, -1.0,
-1.0, -1.0, -1.0,
},
1.0, 0.0
};
FimgFilter3x3 diagonal = {
{
2.0, 1.0, 0.0,
1.0, 0.0, -1.0,
0.0, -1.0, -2.0,
},
1.0, 0.0
};
switch (typef) {
case 0: pfiltre = &lowpass; break;
case 1: pfiltre = &hipass; break;
case 2: pfiltre = &diagonal; break;
default:
fprintf(stderr, "%s: bad filter number %d\n",
__func__, typef);
return -6;
break;
}
fimg_clone(pimg, &img, 0);
retval = fimg_filter_3x3(pimg, &img, pfiltre);
if (retval) {
fprintf(stderr, "%s error %d on filter\n", __func__, retval);
exit(1);
}
(void)fimg_killborders(&img); /* nice try ? */
foo = fimg_auto_shift_to_zero(&img, &img);
if (foo) {
fprintf(stderr, "%s: err %d zero shift\n", __func__, foo);
exit(1);
}
/** may be, we can check for negative values ? */
/** or is this useless because whe have shifted to zero ? */
if (verbosity > 1) {
foo = fimg_count_negativ(&img);
if (foo) {
fprintf(stderr, "%s -> %d / %d negative pixels\n", __func__,
foo, img.width*img.height);
}
}
fimg_killborders(&img);
fimg_copy_data(&img, pimg);
fimg_destroy(&img);
return retval;
}
/* -------------------------------------------------------------- */
/*
* This is the main filter engine used both for input and
* output processing. It can be called by the filterstack
* processor.
*/
#define DEBUG_THIS_CRAP 0
int crapulator(FloatImg *image, int idFx, float fval)
{
int retval;
// FloatImg imgtmp;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %d %f )\n", __func__,
image, idFx, fval);
#endif
#if DEBUG_THIS_CRAP
static int count = 0;
int flag_debug = 0;
if (DEBUG_THIS_CRAP==count) {
flag_debug = 1;
fprintf(stderr, "DEBUG PT 1 in %s:%d\n", __func__, __LINE__);
fimg_save_as_png(image, "crap_before.png", 0);
}
#endif
retval = 0;
switch (idFx) {
case CR_none: /* DO NOTHING */
retval = 0;
break;
case CR_cos01:
fimg_cos_01(image, image,
fimg_get_maxvalue(image));
break;
case CR_cos010:
fimg_cos_010(image, image,
fimg_get_maxvalue(image));
break;
case CR_fx3:
retval = effect_3(image);
break;
case CR_rnd48a:
brotche_rand48_a(image, 0.20,
fimg_get_maxvalue(image));
break;
case CR_rnd48b:
brotche_rand48_b(image, 0.10,
fimg_get_maxvalue(image)*0.8);
break;
case CR_killcola:
retval = fimg_killcolors_a(image, 0.0);
break;
case CR_colmixa:
retval = fimg_colors_mixer_a(image, 2.0);
break;
case CR_ctr2x2:
retval = insitu_ctr2x2(image);
break;
case CR_classtrial:
retval = fimg_classif_trial(image, image, 0.37, 0);
break;
case CR_binarize:
retval = fimg_binarize(image, 0);
break;
case CR_trinarize:
retval = fimg_trinarize(image, 0);
break;
case CR_liss2x2:
retval = fimg_lissage_2x2(image);
// (void)fimg_killborders(image);
break;
case CR_liss3x3:
/* smooth filter */
retval = insitu_filtre3x3(image, 0);
break;
case CR_desaturate:
retval = fimg_desaturate(image, image, 0);
break;
case CR_killlines:
retval = kill_a_few_lines(image, fval,
image->height/19);
break;
case CR_water:
retval = bouger_les_pixels(image, 12);
break;
case CR_mirsplit:
retval = mirror_split(image, 0);
break;
case CR_updown:
retval = upside_down(image);
break;
case CR_hipass:
/* hipass filter */
retval = insitu_filtre3x3(image, 1);
break;
case CR_diagonal:
retval = insitu_filtre3x3(image, 2);
break;
case CR_octotree:
retval = octotree_classif(image, 0.500, 0);
break;
case CR_trinitron:
retval = trinitron(image, 0);
break;
case CR_sqrt:
retval = fimg_square_root(image, image, 1000.0);
break;
case CR_pow2:
retval = fimg_power_2(image, image, 1000.0);
break;
/* here are the glitches */
case CR_bsombra: /* experiment ! */
retval = des_bords_sombres_a(image, 160);
break;
case CR_bsombrb: /* experiment ! */
retval = des_bords_sombres_b(image, 160);
break;
case CR_vsglitch:
/* please make this function more tweakable */
retval = vertical_singlitch(image, 290+rand()%45,
fval, 0.19, 0);
break;
case CR_rndblks:
retval = random_blocks(image, 70);
break;
case CR_shiftln0:
retval = multilines_shift_0(image, 11, 120);
break;
case CR_qsortrgb:
retval = trier_les_pixels(image);
break;
case CR_multidots:
retval = plot_multidots(image, 42);
break;
case CR_message:
fprintf(stderr, "### msg from pid %d, fval=%f ###\n",
getpid(), fval);
/* here, we can display stats ! */
fimg_describe(image, "in crapulator");
retval = 0;
break;
case CR_nothing:
retval = do_something(image, 3);
break;
case CR_hilightr:
retval = fimg_highlight_color(image, image, 'R', 1.717);
break;
default :
fprintf(stderr, "%s : effect #%d invalid\n",
__func__, idFx);
return -77;
}
#if DEBUG_THIS_CRAP
if (flag_debug) {
fprintf(stderr, "DEBUG PT 2 in %s:%d\n", __func__, __LINE__);
fimg_save_as_png(image, "crap_after.png", 0);
flag_debug = 0;
}
count++;
#endif
return retval;
}
/* -------------------------------------------------------------- */
typedef struct {
int id;
char *name;
int ipar;
float fpar;
int flags;
} Crapulor;
/* Warning: overengeniring inside */
#include "crapstr.h" /* generated file ! */
#define NBCRAP (sizeof(CrapL)/sizeof(Crapulor))
void list_crapulors(char *texte)
{
int idx;
#define OUT stdout
fprintf(OUT, "______________. %s\n", texte);
for (idx=0; CrapL[idx].id!=-1; idx++) {
fprintf(OUT, " %-12s | %4d | %5d | %8.3f\n",
CrapL[idx].name,
CrapL[idx].id,
CrapL[idx].ipar,
CrapL[idx].fpar);
}
#undef OUT
}
/* -------------------------------------------------------------- */
char * crap_name_from_number(int num)
{
int idx;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %d )\n", __func__, num);
#endif
for (idx=0; CrapL[idx].id!=-1; idx++) {
if (num == CrapL[idx].id) {
return CrapL[idx].name;
}
}
return "???";
}
/* -------------------------------------------------------------- */
int crap_number_from_name(char *name)
{
int idx, retval;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( '%s' )\n", __func__, name);
#endif
retval = -1; /* not found */
for (idx=0; CrapL[idx].id!=-1; idx++) {
if (0 == strcmp(CrapL[idx].name, name)) {
// fprintf(stderr, "found '%s' -> %d\n", name,
// CrapL[idx].id);
retval = CrapL[idx].id;
break;
}
}
return retval; /* not found */
}
/* -------------------------------------------------------------- */