source tree refactor and build system (to be completed)

This commit is contained in:
John Doe
2021-05-11 22:44:13 +02:00
parent cc79dd5152
commit bbc0309591
121 changed files with 259 additions and 290 deletions

138
src/funcs/Makefile Normal file
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#---------------------------------------------------------------
# Please, use the 'Gloabl.makefile' system !
LIB_DIR = ../../build/lib
OBJ_DIR = ../../build/obj
STATIC_LIB = $(LIB_DIR)/libfloatimg.a
DYN_OBJ = $(OBJ_DIR)/libfloatimg-funcs.o
COPT = -Wall -fpic -g -no-pie -DDEBUG_LEVEL=0
DEPS = ../floatimg.h Makefile
OBJS = fimg-png.o fimg-tiff.o misc-plots.o filtrage.o utils.o \
fimg-libpnm.o rampes.o sfx0.o sfx1.o sfx2.o \
geometry.o rotate.o fimg-openexr.o \
equalize.o fimg-fits.o saturation.o histogram.o \
hsv.o classif.o contour2x2.o qsortrgb.o exporter.o \
displacement.o dithering.o plasmas.o incrustator.o \
recurse.o
all: $(OBJS) $(STATIC_LIB) $(DYN_OBJ)
#---------------------------------------------------------------
t: t.c $(DEPS) ../libfloatimg.a tests.o
gcc $(COPT) $< \
tests.o \
-I/usr/include/netpbm/ \
-I/usr/include/cfitsio/ \
../libfloatimg.a -lnetpbm -lpnglite -lcfitsio \
-ltiff \
-lz -lm -o $@
tests.o: tests.c tests.h $(DEPS)
gcc $(COPT) -I/usr/include/netpbm -c $<
#---------------------------------------------------------------
# upper-level functions
$(STATIC_LIB): $(OBJS)
$(AR) r $@ $?
$(DYN_OBJ): $(OBJS)
mkdir -p $(OBJ_DIR)
ld -Ur -o $@ $?
clean:
rm -rf $(OBJS) $(STATIC_LIB) $(DYN_OBJ)
recurse.o: recurse.c $(DEPS)
gcc $(COPT) -c $<
incrustator.o: incrustator.c $(DEPS)
gcc $(COPT) -c $<
displacement.o: displacement.c $(DEPS)
gcc $(COPT) -c $<
fimg-png.o: fimg-png.c $(DEPS)
gcc $(COPT) -c $<
fimg-bmp.o: fimg-bmp.c $(DEPS)
gcc $(COPT) -c $<
fimg-tiff.o: fimg-tiff.c $(DEPS)
gcc $(COPT) -c $<
fimg-openexr.o: fimg-openexr.c $(DEPS)
gcc $(COPT) -c $<
fimg-fits.o: fimg-fits.c $(DEPS)
gcc $(COPT) -I/usr/include/cfitsio/ -c $<
fimg-libpnm.o: fimg-libpnm.c $(DEPS)
gcc $(COPT) -I/usr/include/netpbm -c $<
misc-plots.o: misc-plots.c $(DEPS)
gcc $(COPT) -c $<
filtrage.o: filtrage.c $(DEPS)
gcc $(COPT) -c $<
geometry.o: geometry.c $(DEPS)
gcc $(COPT) -c $<
rotate.o: rotate.c $(DEPS)
gcc $(COPT) -c $<
saturation.o: saturation.c $(DEPS)
gcc $(COPT) -c $<
histogram.o: histogram.c $(DEPS)
gcc $(COPT) -c $<
equalize.o: equalize.c $(DEPS)
gcc $(COPT) -c $<
dithering.o: dithering.c $(DEPS)
gcc $(COPT) -c $<
plasmas.o: plasmas.c $(DEPS)
gcc $(COPT) -c $<
sfx0.o: sfx0.c $(DEPS)
gcc $(COPT) -c $<
sfx1.o: sfx1.c $(DEPS)
gcc $(COPT) -c $<
sfx2.o: sfx2.c $(DEPS)
gcc $(COPT) -c $<
contour2x2.o: contour2x2.c $(DEPS)
gcc $(COPT) -c $<
rampes.o: rampes.c $(DEPS)
gcc $(COPT) -c $<
classif.o: classif.c $(DEPS)
gcc $(COPT) -c $<
qsortrgb.o: qsortrgb.c $(DEPS)
gcc $(COPT) -c $<
exporter.o: exporter.c $(DEPS)
gcc $(COPT) -c $<
hsv.o: hsv.c $(DEPS)
gcc $(COPT) -c $<
utils.o: utils.c $(DEPS)
gcc $(COPT) -c $<

26
src/funcs/README.md Normal file
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# Fonctions
Plein de fonctions qu'il serait bon de documenter :)
## PNG
__Attention__ : la bibliothèque `pnglite`actuellement utiilsée pour lire les
fichiers PNG n'accepte que **certains** types de fichiers.
Et en particulier, elle brotche sur ceux produits par ImageMagick !
## Contours
Détecter des contours est une activité respectable.
## Exporter
Une méta-fonction qui va sauvegarder (dans la mesure de ses conséquences)
une image en fonction de l'extension du nom de fichier.
## Sfx
Effets spéciaux divers.
## Dithering
Work in progress...

33
src/funcs/alltests.sh Executable file
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#!/bin/bash
#
# trying to run a maximum of ugly code
#
for trial in $(./t -l)
do
printf "============ %-10s ============\n" $trial
make t
error=$?
if [ 0 -ne $error ]
then
echo "make error is " $error
exit 1
fi
./t -v $trial
error=$?
if [ 0 -ne $error ]
then
echo "run error is " $error
exit 1
fi
printf "\t=== return code %d\n" $error
echo
sleep 10
done

103
src/funcs/classif.c Normal file
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/*
* classif.c
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "../floatimg.h"
extern int verbosity;
/* --------------------------------------------------------------------- */
/* nouveau 2 octobre 2020, juste avant sonoptic de la pluie craignos */
int fimg_classif_trial(FloatImg *psrc, FloatImg *pdst, float fval, int notused)
{
float minmax[6], delta[3], baryc[3];
float range, dist, rgb[3], dr, dg, db;
int x, y, on, off;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %p %f %d )\n", __func__,
psrc, pdst, fval, notused);
#endif
if (FIMG_TYPE_RGB != psrc->type) {
fprintf(stderr, "%s: bad src type %d\n", __func__, psrc->type);
return -7;
}
if (fimg_images_not_compatible(psrc, pdst)) {
fprintf(stderr, "%s: bad dst type %d\n", __func__, pdst->type);
return -8;
}
/* calculer les amplitudes RGB de l'image source */
fimg_get_minmax_rgb(psrc, minmax);
delta[0] = minmax[1] - minmax[0];
delta[1] = minmax[3] - minmax[2];
delta[2] = minmax[5] - minmax[4];
/* chercher le plus petit des deltas */
range = delta[0]; if (delta[1]<range) range=delta[1];
if (delta[2]<range) range=delta[2];
/* convertir le diametre en rayon (magic inside) */
range *= fval;
if (verbosity > 1) fprintf(stderr, "deltas : %f %f %f / %f\n",
delta[0], delta[1], delta[2], range);
/* calcul du "barycentre" chromatique */
baryc[0] = (minmax[1] + minmax[0]) / 2;
baryc[1] = (minmax[3] + minmax[2]) / 2;
baryc[2] = (minmax[5] + minmax[4]) / 2;
if (verbosity > 1) fprintf(stderr, "barycs : %f %f %f\n",
baryc[0], baryc[1], baryc[2]);
on = off = 0;
for (y=0; y<psrc->height; y++) {
for (x=0; x<psrc->width; x++) {
fimg_get_rgb(psrc, x, y, rgb);
/* calcul de la distance chromatique */
dr = rgb[0] - baryc[0];
dg = rgb[1] - baryc[1];
db = rgb[2] - baryc[2];
dist = sqrtf( (dr*dr) + (dg*dg) + (db*db) );
#if DEBUG_LEVEL
if (x==y) fprintf(stderr, "%4d %4d %f\n", x, y, dist);
#endif
/* action !!! */
if (dist > range) {
/* make our pixel gray-level */
rgb[0] = rgb[1] = rgb[2] = 0.0;
// (rgb[0] + rgb[1] + rgb[2]) / 3.0;
on++;
}
else {
/* the easy part : do nothing */
off++;
}
fimg_put_rgb(pdst, x, y, rgb);
/* MUST BE MORE CREATIVE HERE !!! */
}
}
if (verbosity > 1) fprintf(stderr, "on %d off %d\n", on, off);
return 0;
}
/* --------------------------------------------------------------------- */

95
src/funcs/contour2x2.c Normal file
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/*
* Detection de contours
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "../floatimg.h"
extern int verbosity;
/* --------------------------------------------------------------------- */
/* nouveau 4 octobre 2020, juste avant sonoptic de la pluie craignos */
int fimg_contour_2x2(FloatImg *psrc, FloatImg *pdst, int reverse)
{
float avg[4];
int foo, x, y, q;
float v1, v2;
int tbl[] = /* deep magic inside */
{
0, 1, 1, 1,
1, 1, 0, 1,
1, 0, 1, 1,
1, 1, 1, 0
}; /* please explain */
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %p %d )\n", __func__, psrc, pdst, reverse);
#endif
if (FIMG_TYPE_RGB != psrc->type) {
fprintf(stderr, "%s: bad src type %d\n", __func__, psrc->type);
return -7;
}
if (fimg_images_not_compatible(psrc, pdst)) {
fprintf(stderr, "%s: bad dst type %d\n", __func__, pdst->type);
return -8;
}
if (reverse) {
v1 = 0.0; v2 = 1.0;
}
else {
v1 = 1.0; v2 = 0.0;
}
foo = fimg_meanvalues(psrc, avg);
if (foo) {
fprintf(stderr, "%s: err %d on fimg_meanvalues\n", __func__, foo);
return foo;
}
if (verbosity > 1) {
fprintf(stderr, "%s: %f %f %f\n", __func__, avg[0], avg[1], avg[2]);
}
#define RP(ix, iy) ( psrc->R[((iy)*psrc->width)+(ix)] < avg[0] )
#define GP(ix, iy) ( psrc->G[((iy)*psrc->width)+(ix)] < avg[1] )
#define BP(ix, iy) ( psrc->B[((iy)*psrc->width)+(ix)] < avg[2] )
for (y=0; y<psrc->height-1; y++) {
for (x=0; x<psrc->width-1; x++) {
q = ( ( RP(x, y) << 3 ) |
( RP(x+1, y) << 2 ) |
( RP(x, y+1) << 1 ) |
( RP(x+1, y+1) ) );
pdst->R[(y*psrc->width)+x] = tbl[q] ? v1 : v2 ;
q = ( ( GP(x, y) << 3 ) |
( GP(x+1, y) << 2 ) |
( GP(x, y+1) << 1 ) |
( GP(x+1, y+1) ) );
pdst->G[(y*psrc->width)+x] = tbl[q] ? v1 : v2 ;
q = ( ( BP(x, y) << 3 ) |
( BP(x+1, y) << 2 ) |
( BP(x, y+1) << 1 ) |
( BP(x+1, y+1) ) );
pdst->B[(y*psrc->width)+x] = tbl[q] ? v1 : v2 ;
}
}
/* kill potential NaN values in last row or last column */
fimg_killborders(pdst);
return 0;
}
/* --------------------------------------------------------------------- */

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/*
* displacement.c
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "../floatimg.h"
extern int verbosity;
/* --------------------------------------------------------------------- */
/* nouveau 24 octobre 2020, pendant le masque-flamme coronavidique */
int fimg_displacement_0(FloatImg *psrc, FloatImg *pdst, int flags)
{
int x, y, foo;
float minmax[6];
float rgb[3];
float dltr, dltg, dltb; /* delta des minmax */
float dispx, dispy;
int dstx, dsty;
int in, out;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %p 0x%04x )\n", __func__, psrc, pdst, flags);
#endif
if (FIMG_TYPE_RGB != psrc->type) {
fprintf(stderr, "%s: bad src type %d\n", __func__, psrc->type);
return -7;
}
if (fimg_images_not_compatible(psrc, pdst)) {
fprintf(stderr, "%s: bad dst type %d\n", __func__, pdst->type);
return -8;
}
foo = fimg_get_minmax_rgb(psrc, minmax);
if (verbosity) {
fimg_print_minmax(minmax, (char *)__func__);
}
dltr = minmax[1] - minmax[0];
dltg = minmax[3] - minmax[2];
dltb = minmax[5] - minmax[4];
in = out = 0;
/*
* BE WARNED !
* This code doesn't work as expected, so I have to
* rewrite it, maybe when the pandemic is closed...
*/
for (y=0; y<psrc->height; y++) {
for (x=0; x<psrc->width; x++) {
fimg_get_rgb(psrc, x, y, rgb);
dispx = (float)x + (rgb[1]/dltg * 20.0);
dispy = (float)y + (rgb[2]/dltb * 10.0);
dstx = (int)roundf(dispx - 10.0);
dsty = (int)roundf(dispy - 10.0);
if ( (dstx < 0) || (dsty < 0) ||
(dstx >= psrc->width) ||
(dsty >= psrc->height) )
{
/* OUT OF DESTINATION PICTURE */
out++;
}
else {
if (flags & 1) {
/* going monochrome */
rgb[1] = rgb[2] = rgb[0];
}
fimg_put_rgb(pdst, dstx, dsty, rgb);
in++;
}
}
}
if (verbosity) fprintf(stderr, "%s -> in %d out %d\n", __func__, in, out);
return 0;
}
/* --------------------------------------------------------------------- */

31
src/funcs/dithering.c Normal file
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/*
* FloatImg : some dithering experiments
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "../floatimg.h"
extern int verbosity;
/* --------------------------------------------------------------------- */
int fimg_dither_0(FloatImg *psrc, FloatImg *pdst, int flags)
{
int x, y;
for (y=0; y<psrc->height; y++) {
for (x=0; x<psrc->width; x++)
{
}
}
return -1;
}
/* --------------------------------------------------------------------- */

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src/funcs/equalize.c Normal file
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/*
* FLOATIMG
* egalisation dynamique approximative
* #coronamaison Thu 09 Apr 2020 03:37:10 PM CEST
*/
#include <stdio.h>
#include <string.h>
#include "../floatimg.h"
extern int verbosity;
/* --------------------------------------------------------------------- */
int fimg_equalize_compute(FloatImg *src, void *vptr, float vmax)
{
float minmax[6];
int foo;
float dr, dg, db;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %p %f )\n", __func__, src, vptr, vmax);
#endif
memset(minmax, 0, 6*sizeof(float));
foo = fimg_get_minmax_rgb(src, minmax);
if (foo) {
fprintf(stderr, "err %d get minmax in %s\n", foo, __func__);
return foo;
}
dr = minmax[1] - minmax[0];
dg = minmax[3] - minmax[2];
db = minmax[5] - minmax[4];
printf("Rmin %12.4g max %12.4g delta %12.4g\n", minmax[0], minmax[1], dr);
printf("Gmin %12.4g max %12.4g delta %12.4g\n", minmax[2], minmax[3], dg);
printf("Bmin %12.4g max %12.4g delta %12.4g\n", minmax[4], minmax[5], db);
if ( (minmax[0]<0.0) || (minmax[2]<0.0) || (minmax[4]<0.0) ) {
fprintf(stderr, "%s: negative value ?\n", __func__);
return -4;
}
// printf("deltas %12.4g %12.4g %12.4g\n", dr, dg, db);
return 0;
}
/* --------------------------------------------------------------------- */
/* --------------------------------------------------------------------- */
/* --------------------------------------------------------------------- */

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src/funcs/exporter.c Normal file
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/*
* exporter.c
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../floatimg.h"
extern int verbosity;
/* --------------------------------------------------------------------- */
/*
* multi-magic 'save file' function.
*/
int fimg_export_picture(FloatImg *pic, char *fname, int flags)
{
int filetype;
int foo;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p '%s' 0x%X )\n", __func__,
pic, fname, flags);
#endif
filetype = format_from_extension(fname);
if (verbosity > 1) {
fprintf(stderr, "file %s have type %d\n", fname, filetype);
}
switch(filetype) {
case FILE_TYPE_FIMG:
foo = fimg_dump_to_file(pic, fname, 0);
break;
case FILE_TYPE_PNM:
foo = fimg_save_as_pnm(pic, fname, 0);
break;
case FILE_TYPE_PNG:
foo = fimg_save_as_png(pic, fname, 0);
break;
case FILE_TYPE_TGA:
fprintf(stderr, "%s: FILE_TYPE_TGA not implemented\n",
__func__);
foo = -666;
break;
case FILE_TYPE_TIFF:
foo = fimg_write_as_tiff(pic, fname, 0);
break;
case FILE_TYPE_FITS:
foo = fimg_save_R_as_fits(pic, fname, 0);
break;
case FILE_TYPE_BMP:
fprintf(stderr, "%s: file type BMP not implemented\n", __func__);
foo = -666;
case FILE_TYPE_EXR:
fprintf(stderr, "%s: file type EXR experimental\n", __func__);
foo = fimg_save_as_exr(pic, fname, 0);
default:
foo = -1789;
break;
}
if (foo) {
fprintf(stderr, "%s: exporting '%s' -> %d\n", __func__,
fname, foo);
/* que faire maintenant ? */
}
return foo;
}
/* --------------------------------------------------------------------- */

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <float.h>
#include "../floatimg.h"
/* -------------------------------------------------------------------- */
int fimg_filter_3x3(FloatImg *src, FloatImg *dst, FimgFilter3x3 *filtr)
{
int x, y, w, h, of;
float *pr, *pg, *pb; /* alias for src pix filds */
float *M; /* alias of filter matrix */
double dval;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %p %p )\n", __func__, src, dst, filtr);
#endif
if (src->type != FIMG_TYPE_RGB) {
fprintf(stderr, "%s: src type %d invalid\n", __func__, src->type);
return -99;
}
if (dst->type != FIMG_TYPE_RGB) {
fprintf(stderr, "%s: dst type %d invalid\n", __func__, dst->type);
return -99;
}
if (fimg_images_not_compatible(src, dst)) {
fprintf(stderr, "%s: src & dst not comatibles\n", __func__);
return -98;
}
/* aliasing some vars for cleaner code */
pr = src->R; pg = src->G; pb = src->B;
w = src->width; h = src->height;
M = filtr->matrix;
for (y=1; y < h-1; y++) {
for (x=1; x < w-1; x++) {
of = x + (y * w);
dval = M[0] * pr[of-(w+1)] +
M[1] * pr[of-w] +
M[2] * pr[of-(w-1)] +
M[3] * pr[of-1] +
M[4] * pr[of] +
M[5] * pr[of+1] +
M[6] * pr[of+(w+1)] +
M[7] * pr[of+w] +
M[8] * pr[of+(w-1)] ;
dst->R[of] = dval + filtr->offset;
dval = M[0] * pg[of-(w+1)] +
M[1] * pg[of-w] +
M[2] * pg[of-(w-1)] +
M[3] * pg[of-1] +
M[4] * pg[of] +
M[5] * pg[of+1] +
M[6] * pg[of+(w+1)] +
M[7] * pg[of+w] +
M[8] * pg[of+(w-1)] ;
dst->G[of] = dval + filtr->offset;
dval = M[0] * pb[of-(w+1)] +
M[1] * pb[of-w] +
M[2] * pb[of-(w-1)] +
M[3] * pb[of-1] +
M[4] * pb[of] +
M[5] * pb[of+1] +
M[6] * pb[of+(w+1)] +
M[7] * pb[of+w] +
M[8] * pb[of+(w-1)] ;
dst->B[of] = dval + filtr->offset;
}
}
return 0;
}
/* -------------------------------------------------------------------- */
/*
* this is the more shifting hack on the block.
*/
static int fimg_lissage_2x2_a(FloatImg *img)
{
int x, y, offset;
float cr, cg, cb;
float *pr, *pg, *pb;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p )\n", __func__, img);
fprintf(stderr," type %d size %dx%d\n", img->type,
img->width, img->height);
#endif
if (img->type != FIMG_TYPE_RGB) {
fprintf(stderr, "%s : type %d invalide\n", __func__, img->type);
return -99;
}
pr = img->R; pg = img->G; pb = img->B;
for (y=1; y < img->height-1; y++) {
for (x=1; x < img->width-1; x++) {
offset = x + (y * img->width);
cr = pr[offset] + pr[offset+1] +
pr[offset+img->width] + pr[offset+img->width+1];
cg = pg[offset] + pg[offset+1] +
pg[offset+img->width] + pg[offset+img->width+1];
cb = pb[offset] + pb[offset+1] +
pb[offset+img->width] + pb[offset+img->width+1];
pr[offset] = cr / 4.0;
pg[offset] = cg / 4.0;
pb[offset] = cb / 4.0;
}
}
return 0;
}
/* -------------------------------------------------------------------- */
int fimg_killborders(FloatImg *img)
{
int idx, h, w, o;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p )\n", __func__, img);
fprintf(stderr," type %d size %dx%d\n", img->type,
img->width, img->height);
#endif
if (img->type != FIMG_TYPE_RGB) {
fprintf(stderr, "%s : type %d invalide\n", __func__, img->type);
return -99;
}
h = img->height; w = img->width;
for (idx=0; idx<h; idx++) {
#define FAST 1
#if FAST
img->R[idx*w] = 0.0;
img->G[idx*w] = 0.0;
img->B[idx*w] = 0.0;
img->R[(idx*w)+w-1] = 0.0;
img->G[(idx*w)+w-1] = 0.0;
img->B[(idx*w)+w-1] = 0.0;
#else
fimg_plot_rgb(img, 0, idx, 0.0, 0.0, 0.0);
fimg_plot_rgb(img, w-1, idx, 0.0, 0.0, 0.0);
#endif
}
o = w * (h - 1);
for (idx=0; idx<w; idx++) {
#if FAST
img->R[idx] = 0.0;
img->G[idx] = 0.0;
img->B[idx] = 0.0;
img->R[idx+o] = 0.0;
img->G[idx+o] = 0.0;
img->B[idx+o] = 0.0;
#else
fimg_plot_rgb(img, idx, 0, 0.0, 0.0, 0.0);
fimg_plot_rgb(img, idx, h-1, 0.0, 0.0, 0.0);
#endif
}
return 0;
}
/* -------------------------------------------------------------------- */
int fimg_lissage_2x2(FloatImg *img)
{
int foo;
foo = fimg_lissage_2x2_a(img);
if (foo) {
fprintf(stderr, "%s: fail %d\n", __func__, foo);
return foo;
}
fimg_killborders(img);
return foo;
}
/* -------------------------------------------------------------------- */

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/*
* Lecture/ecriture des images BMP
* -------------------------------
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../floatimg.h"
extern int verbosity;
/* --------------------------------------------------------------------- */
int fimg_save_as_bmp(FloatImg *src, char *outname, int flags)
{
return -2;
}
/* --------------------------------------------------------------------- */

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/*
* FLOATIMG
* import/export to/from FITS files
https://heasarc.gsfc.nasa.gov/docs/software/fitsio/c/c_user/node1.html
*/
#include <stdio.h>
#include <stdlib.h>
#include <fitsio.h>
#include "../floatimg.h"
extern int verbosity;
/* --------------------------------------------------------------------- */
int fimg_save_plane_as_fits(FloatImg *src, char *outname,
char plane, int flags)
{
fitsfile *fptr; /* pointer to the FITS file */
int status, sz;
int bitpix = FLOAT_IMG;
float *pplane;
long naxis = 2;
long naxes[2];
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p '%s' %d )\n", __func__, src, outname, flags);
#endif
status = 0;
switch (plane) {
case 'r': case 'R':
pplane = src->R; break;
case 'g': case 'G':
pplane = src->G; break;
case 'b': case 'B':
pplane = src->B; break;
default:
return -66;
}
remove(outname); /* Delete old file if it already exists */
if (fits_create_file(&fptr, outname, &status)) {
fits_report_error(stderr, status);
return -9;
}
naxes[0] = src->width; naxes[1] = src->height;
if (verbosity) fimg_describe(src, "to be saved as FITS");
if ( fits_create_img(fptr, bitpix, naxis, naxes, &status) ) {
fits_report_error(stderr, status);
return -10;
}
sz = naxes[0]*naxes[1];
if ( fits_write_img(fptr, TFLOAT, 1, sz, pplane, &status) ) {
fits_report_error(stderr, status);
return -10;
}
if ( fits_close_file(fptr, &status) ) {
fits_report_error(stderr, status);
return -9;
}
return 0;
}
/* --------------------------------------------------------------------- */
int fimg_save_R_as_fits(FloatImg *src, char *outname, int flags)
{
int retv;
retv = fimg_save_plane_as_fits(src, outname, 'r', flags);
return retv;
}
/* --------------------------------------------------------------------- */
int fimg_save_G_as_fits(FloatImg *src, char *outname, int flags)
{
int retv;
retv = fimg_save_plane_as_fits(src, outname, 'g', flags);
return retv;
}
/* --------------------------------------------------------------------- */
int fimg_save_B_as_fits(FloatImg *src, char *outname, int flags)
{
int retv;
retv = fimg_save_plane_as_fits(src, outname, 'b', flags);
return retv;
}
/************************************************************
***** MAGIC CODE FROM OUTERSPACE ?
function 'writeimage' from :
https://heasarc.gsfc.nasa.gov/docs/software/fitsio/cexamples/cookbook.c
float **array;
array = calloc(src->height, sizeof(float *));
array[0] = src->R;
#define REVERSE 1
for( idx=0; idx<naxes[1]; idx++ ) {
#if REVERSE
k = naxes[1] - idx - 1;
#else
k = idx;
#endif
array[idx] = src->R + (k*naxes[0]);
fprintf(stderr, " %6d %6d %p\n", idx, k, array[idx]);
}
**************************************************************/

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/*
* interface FloatImg <-> libpnm(3)
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pam.h>
#include "../floatimg.h"
extern int verbosity;
/* --------------------------------------------------------------------- */
static void print_struct_pam(struct pam *ppam, char *txt)
{
printf(" size %d\n", ppam->size);
printf(" format %d\n", ppam->format);
printf(" plainformat %d\n", ppam->plainformat);
printf(" width & height %d %d\n", ppam->width, ppam->height);
printf(" depth %d\n", ppam->depth);
printf(" maxval %lu\n", ppam->maxval);
}
/* --------------------------------------------------------------------- */
int fimg_pnm_infos(char *fname)
{
struct pam inpam;
FILE *fp;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( '%s' )\n", __func__, fname);
#endif
if (NULL==(fp=fopen(fname, "r"))) {
perror(fname);
exit(1);
}
pnm_readpaminit(fp, &inpam, sizeof(inpam));
print_struct_pam(&inpam, fname);
fclose(fp);
return 0;
}
/* --------------------------------------------------------------------- */

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/*
* Lecture/ecriture des images EXR
* -------------------------------
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../floatimg.h"
extern int verbosity;
/* --------------------------------------------------------------------- */
int fimg_save_as_exr(FloatImg *src, char *outname, int flags)
{
// #if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p '%s' 0x%X )\n", __func__, src, outname, flags);
// #endif
if (FIMG_TYPE_RGB != src->type) {
fprintf(stderr, "%s: src bad type %d\n", __func__, src->type);
return -2;
}
return -2;
}
/* --------------------------------------------------------------------- */

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/*
* Lecture des images PNG
* ----------------------
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pnglite.h>
#include "../floatimg.h"
extern int verbosity;
/* --------------------------------------------------------------------- */
/*
* warning : this func has been tested only with
* RGB (3x8bits) PNG files
*
* Attention : certains fichiers, tels que ceux
* produits par ImageMagick ne sont pas lisibles
* par cette fonction :(
*/
int fimg_create_from_png(char *filename, FloatImg *fimg)
{
png_t png;
int foo, idx;
unsigned char *datas, *ptr;
int datasize;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %-25s ( '%s' %p )\n", __func__, filename, fimg);
#endif
/* We MUST clear the fimg destination header first */
memset(fimg, 0, sizeof(FloatImg));
memset(&png, 0, sizeof(png_t));
png_init(NULL, NULL); /* this is VITAL ! */
foo = png_open_file_read(&png, filename);
if (PNG_NO_ERROR != foo) {
fprintf(stderr, "%s :\n\topen_file '%s' = %d %s\n", __func__,
filename, foo, png_error_string(foo));
png_close_file(&png);
return foo;
}
#if DEBUG_LEVEL > 1
fprintf(stderr, "%s opened\n", filename);
#endif
if (verbosity) {
printf("----------- %s ---------\n", filename);
png_print_info(&png); puts("");
fflush(stdout);
}
if ( 3 != png.bpp ) {
fprintf(stderr, "bpp format %d of '%s' not supported\n",
png.color_type, filename);
return -21;
}
datasize = png.width * png.height * png.bpp;
datas = malloc(datasize);
if (NULL==datas) {
fprintf(stderr, "%s : fatal memory failure\n", __func__);
exit(1);
}
memset(fimg, 0, sizeof(FloatImg));
foo = fimg_create(fimg, png.width, png.height, 3);
if (foo) {
fprintf(stderr, "can't create fimg\n");
exit(1);
}
/* I GET AN 'Unknown file error' HERE, WHY ???*/
foo = png_get_data(&png, datas);
if (PNG_NO_ERROR != foo) {
fprintf(stderr, "err in '%s:%s' :\n\tpng_get_data -> %d = %s\n\n",
__FILE__, __func__, foo, png_error_string(foo));
png_close_file(&png);
return foo;
}
ptr = datas;
for (idx=0; idx<png.width * png.height; idx++) {
fimg->R[idx] = (float)*ptr++;
fimg->G[idx] = (float)*ptr++;
fimg->B[idx] = (float)*ptr++;
}
free(datas);
png_close_file(&png);
// fprintf(stderr, "png closed...\n");
return foo;
}
/* --------------------------------------------------------------------- */
/*
* warning : this func has been tested only with
* RGB (3x8bits) PNG files
*/
int fimg_load_from_png(char *filename, FloatImg *fimg)
{
png_t png;
int foo, idx, datasize;
unsigned char *datas, *ptr;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %-25s ( '%s' %p )\n", __func__, filename, fimg);
#endif
memset(&png, 0, sizeof(png_t));
png_init(NULL, NULL); /* this is VITAL ! */
foo = png_open_file_read(&png, filename);
if (PNG_NO_ERROR != foo) {
#if DEBUG_LEVEL
fprintf(stderr, "open png -> %d\n", foo);
#endif
return foo;
}
// puts(""); png_print_info(&png); puts("");
if ( 3 != png.bpp ) { /* TO BE PATCHED */
fprintf(stderr, "format of '%s' not supported\n", filename);
return -21;
}
/* check if floatimg and PNG have the same size */
if ((fimg->width != png.width) || (fimg->height != png.height)) {
fprintf(stderr, "%s : fatal error on images sizes\n", __func__);
exit(1);
}
datasize = png.width * png.height * png.bpp;
datas = malloc(datasize);
if (NULL==datas) {
fprintf(stderr, "%s : fatal memory failure\n", __func__);
exit(1);
}
foo = png_get_data(&png, datas);
if (PNG_NO_ERROR != foo) {
fprintf(stderr, "error in '%s' : read png -> %d\n",
__func__, foo);
return foo;
}
ptr = datas;
for (idx=0; idx<png.width * png.height; idx++) {
fimg->R[idx] = (float)*ptr++;
fimg->G[idx] = (float)*ptr++;
fimg->B[idx] = (float)*ptr++;
}
free(datas);
png_close_file(&png);
return 0;
}
/* --------------------------------------------------------------------- */
/* nouveau 13 decembre 2019 */
int fimg_save_as_png(FloatImg *src, char *outname, int flags)
{
png_t png;
int foo, sz, idx;
unsigned char *bytes, *bptr;
double maximum, fk;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %-25s ( %p '%s' 0x%x )\n", __func__, src, outname, flags);
#endif
/* convert ou floating datas to a byte/rgb array */
/* first, alloc a buffer */
sz = src->width * src->height;
bytes = calloc(sz, 3);
if (NULL==bytes) {
fprintf(stderr, "%s : no mem ?\n", __func__);
exit(3);
}
/* compute max value */
maximum = (double)fimg_get_maxvalue(src);
fk = maximum / 255.0;
if (verbosity > 1)
fprintf(stderr, "%s: max val %g fk %g\n", __func__, maximum, fk);
/* massage des pixels */
bptr = bytes;
for (idx=0; idx<sz; idx++) {
*bptr++ = (unsigned char) (src->R[idx] / fk);
*bptr++ = (unsigned char) (src->G[idx] / fk);
*bptr++ = (unsigned char) (src->B[idx] / fk);
}
memset(&png, 0, sizeof(png_t));
png_init(NULL, NULL); /* this is VITAL ! */
foo = png_open_file_write(&png, outname);
if (PNG_NO_ERROR != foo) {
fprintf(stderr, "error in '%s' : open_file_write -> %d\n",
__func__, foo);
return foo;
}
foo = png_set_data(&png, src->width, src->height, 8, PNG_TRUECOLOR, bytes);
if (PNG_NO_ERROR != foo) {
fprintf(stderr, "error in '%s' : set_data -> %d\n",
__func__, foo);
return foo;
}
png_close_file(&png);
free(bytes); /* yolo ? */
return 0;
}
/* --------------------------------------------------------------------- */

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/*
* FLOATIMG
* import/export to/from TIFF files
*/
#include <stdio.h>
#include <stdlib.h>
#include <tiffio.h>
#include "../floatimg.h"
/* --------------------------------------------------------------------- */
extern int verbosity;
/* --------------------------------------------------------------------- */
int fimg_write_as_tiff(FloatImg *src, char *fname, int flags)
{
TIFF *tiff;
unsigned short *linebuff, *ptr;
int x, y, idx, foo;
char ligne[100];
double maximum, fk;
/* bon, tout cela semble bien tortueux ! */
if (FIMG_TYPE_RGB != src->type) {
fprintf(stderr, "%s: src bad type %d\n", __func__, src->type);
return -2;
}
linebuff = calloc(src->width, 3*sizeof(unsigned short));
if (NULL==linebuff) {
fprintf(stderr, "%s: fatal memory error\n", __func__);
return -7;
}
maximum = (double)fimg_get_maxvalue(src);
fk = maximum / 65535.0;
if (verbosity) {
fprintf(stderr, "%s : maxv %f fk %f\n", __func__, maximum, fk);
}
tiff = TIFFOpen(fname, "w");
if (NULL==tiff) {
return -6;
}
TIFFSetField(tiff, TIFFTAG_IMAGEWIDTH, src->width);
TIFFSetField(tiff, TIFFTAG_IMAGELENGTH, src->height);
TIFFSetField(tiff, TIFFTAG_SAMPLESPERPIXEL, 3); // RGB
TIFFSetField(tiff, TIFFTAG_BITSPERSAMPLE, 16); // 0->65535
TIFFSetField(tiff, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
TIFFSetField(tiff, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
sprintf(ligne, "lib FloatImg v %d by tTh", FIMG_VERSION);
TIFFSetField(tiff, TIFFTAG_SOFTWARE, ligne);
foo = src->width * 3;
foo = TIFFDefaultStripSize(tiff, foo);
if (verbosity) fprintf(stderr, "default strip size %d\n", foo);
TIFFSetField(tiff, TIFFTAG_ROWSPERSTRIP, foo);
for (y=0; y<src->height; y++) {
ptr = linebuff;
idx = y * src->width;
for (x=0; x<src->width; x++) {
*ptr++ = (unsigned short) (src->R[idx] / fk);
*ptr++ = (unsigned short) (src->G[idx] / fk);
*ptr++ = (unsigned short) (src->B[idx] / fk);
idx++;
}
TIFFWriteScanline(tiff, linebuff, y, 0);
idx += src->width;
}
TIFFClose(tiff);
free(linebuff);
return 0;
}
/* --------------------------------------------------------------------- */

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/*
* FLOATIMG
* distorsions géométriques - coredumping ?
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../floatimg.h"
extern int verbosity;
/* --------------------------------------------------------------------- */
/*
* really crude function, need more work...
*/
int fimg_halfsize_0(FloatImg *src, FloatImg *dst, int notused)
{
int wd, hd;
int foo, x, y;
float pixel[3];
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %p %d )\n", __func__,
src, dst, notused);
#endif
/* no magic check here ? */
if (dst->width || dst->height) {
fprintf(stderr, "*** %s: image at %p not empty\n", __func__, dst);
fimg_describe(dst, "destination halfsize 0");
return -2;
}
wd = src->width / 2; hd = src->height / 2;
foo = fimg_create(dst, wd, hd, FIMG_TYPE_RGB);
if (foo) {
fprintf(stderr, "%s: err create %d\n", __func__, foo);
return -3;
}
for (y=0; y<hd; y++) {
for (x=0; x<wd; x++) {
foo = fimg_get_rgb(src, x*2, y*2, pixel);
if (foo) {
fprintf(stderr, "%s: err get %d\n", __func__, foo);
abort();
}
foo = fimg_plot_rgb(dst, x, y, pixel[0], pixel[1], pixel[2]);
if (foo) {
fprintf(stderr, "%s: err plot %d\n", __func__, foo);
abort();
}
}
}
return 0;
}
/* --------------------------------------------------------------------- */
int fimg_halfsize_1(FloatImg *src, FloatImg *dst, int notused)
{
int wd, hd;
int foo, x, y, x2, y2;
float ac;
if (dst->width || dst->height) {
fprintf(stderr, "*** %s: image at %p not empty\n", __func__, dst);
fimg_describe(dst, "destination halfsize 1");
return -2;
}
wd = src->width / 2; hd = src->height / 2;
if ( (foo = fimg_create(dst, wd, hd, FIMG_TYPE_RGB)) ) {
fprintf(stderr, "%s: err create %d\n", __func__, foo);
return -3;
}
#define WS (src->width)
#define WD (dst->width)
for (y=0; y<hd; y++) {
y2 = y * 2;
for (x=0; x<wd; x++) {
x2 = x * 2;
ac = src->R[(y2*WS)+x2] + src->R[(y2*WS)+x2+1] +
src->R[((1+y2)*WS)+x2] + src->R[((1+y2)*WS)+x2+1];
dst->R[y*WD +x] = ac / 4.0;
ac = src->G[(y2*WS)+x2] + src->G[(y2*WS)+x2+1] +
src->G[((1+y2)*WS)+x2] + src->G[((1+y2)*WS)+x2+1];
dst->G[y*WD +x] = ac / 4.0;
ac = src->B[(y2*WS)+x2] + src->B[(y2*WS)+x2+1] +
src->B[((1+y2)*WS)+x2] + src->B[((1+y2)*WS)+x2+1];
dst->B[y*WD +x] = ac / 4.0;
}
}
#undef WS
#undef WD
return 0;
}
/* --------------------------------------------------------------------- */
int fimg_extractor(FloatImg *in, FloatImg *out, FimgArea51 *rect)
{
int foo;
int xs, ys, xd, yd;
int count;
float rgb[3];
if (verbosity > 1) {
fimg_describe(in, "extractor: source");
fimg_describe(out, "extractor: destination");
// print_rectangle(rect);
}
count = 0;
for (yd=0; yd<rect->h; yd++) {
ys = yd + rect->y;
if ((ys<0) || (ys>=in->height)) continue;
for (xd=0; xd<rect->w; xd++) {
xs = xd + rect->x;
if ((xs<0) || (xs>=in->width)) continue;
fimg_get_rgb(in, xs, ys, rgb);
fimg_put_rgb(out, xd, yd, rgb);
count++;
}
}
// fprintf(stderr, "%s: %d pix moved\n", __func__, count);
return 0;
}
/* --------------------------------------------------------------------- */
/* ho, btw, you can have a locck at 'incrustator.c' :) */
/* --------------------------------------------------------------------- */
int fimg_mirror(FloatImg *src, FloatImg *dst, int notused)
{
float *fptr;
int line, col, offl;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %p 0x%04x )\n", __func__,
src, dst, notused);
#endif
if (fimg_images_not_compatible(src, dst)) {
fprintf(stderr, "bad karma in %s\n", __func__);
return -9;
}
if (NULL == (fptr=alloca(src->width*sizeof(float)))) {
fprintf(stderr, "%s: no mem available\n", __func__);
#if MUST_ABORT
abort();
#endif
return -11;
}
for (line=0; line<src->height; line++) {
offl = line * src->width;
for (col=0; col<src->width; col++)
fptr[(src->width-1) - col] = src->R[offl+col];
memcpy(dst->R+offl, fptr, src->width*sizeof(float));
for (col=0; col<src->width; col++)
fptr[(src->width-1) - col] = src->G[offl+col];
memcpy(dst->G+offl, fptr, src->width*sizeof(float));
for (col=0; col<src->width; col++)
fptr[(src->width-1) - col] = src->B[offl+col];
memcpy(dst->B+offl, fptr, src->width*sizeof(float));
}
return 0;
}
/* --------------------------------------------------------------------- */

95
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/*
* FLOATIMG
* calculer un histogramme et l'afficher
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../floatimg.h"
extern int verbosity;
/* --------------------------------------------------------------------- */
int fimg_calcul_histo(FloatImg *src, long *ghist, int sz)
{
float maxval;
int x, y, idx;
float rgb[3], moy;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %p %d )\n", __func__, src, ghist, sz);
#endif
if (FIMG_TYPE_RGB != src->type) {
fprintf(stderr, "%s: bad type %d of image\n", __func__, src->type);
return -97;
}
maxval = fimg_get_maxvalue(src);
fprintf(stderr, "maximum is %f\n", maxval);
for (y=0; y<src->height; y++) {
for(x=0; x<src->width; x++) {
fimg_get_rgb(src, x, y, rgb);
moy = (rgb[0]+rgb[1]+rgb[2]) / 3.0;
/* ok, here the had math part ... */
idx = (int)( (moy*sz) / maxval);
/* sanity check */
if (idx<0 || idx>=sz) {
fprintf(stderr, "idx = %d, error\n", idx);
abort();
}
ghist[idx]++;
}
}
return -66;
}
/* --------------------------------------------------------------------- */
int fimg_essai_histo(FloatImg *src, char *outpic, int nbslices)
{
long *histo;
int foo;
FILE *pipe;
fprintf(stderr, ">>> %s ( %p '%s' %d )\n", __func__, src, outpic, nbslices);
if (NULL==(histo=calloc(nbslices, sizeof(long)))) {
fprintf(stderr, "OUT OF MEMORY\n");
abort();
}
foo = fimg_calcul_histo(src, histo, nbslices);
// for (foo=0; foo<NSLICES; foo++) {
// printf("%7d %ld\n", foo, histo[foo]);
// }
pipe = popen("gnuplot", "w");
if (NULL==pipe) {
fprintf(stderr, "%s: error running gnuplot\n", __func__);
return -17;
}
fprintf(pipe, "set term png size 1024,512\n");
fprintf(pipe, "set grid\n");
fprintf(pipe, "set output \"%s\"\n", outpic);
fprintf(pipe, "plot '/dev/stdin' with lines\n");
for (foo=0; foo<nbslices; foo++) {
fprintf(pipe, "%d %ld\n", foo, histo[foo]);
}
pclose(pipe); // and not fclose (see man page)
free(histo);
return 0;
}
/* --------------------------------------------------------------------- */

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/*
* FloatImg library
* HUE - SATURATION - VALUE
+---------------------------------------------+
| ce code ne fonctionne vraiment PAS ! |
+---------------------------------------------+
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "../floatimg.h"
extern int verbosity;
/* --------------------------------------------------------------------- */
/* helper functions */
static float maxi3f(float a, float b, float c)
{
return ((a > b)? (a > c ? a : c) : (b > c ? b : c));
}
static float mini3f(float a, float b, float c)
{
return ((a < b)? (a < c ? a : c) : (b < c ? b : c));
}
static int pseudoeq(float a, float b)
{
return (fabsf(a-b)<0.00000000000001); // UGLY HACK ???
}
/* --------------------------------------------------------------------- */
/*
* WARNING : ALL THIS CODE IS STRANGE
*
www.tutorialspoint.com/c-program-to-change-rgb-color-model-to-hsv-color-model
*/
int fimg_rgb2hsv(float rgb[3], float hsv[3], float scale)
{
// float h, s, v;
float cmin, cmax, diff;
// scale input value to [0..1]
rgb[0] /= scale; rgb[1] /= scale; rgb[2] /= scale;
hsv[0] = hsv[1] = hsv[2] = -12345.6789;
cmin = mini3f(rgb[0], rgb[1], rgb[2]);
cmax = maxi3f(rgb[0], rgb[1], rgb[2]);
diff = cmax - cmin;
if (pseudoeq(cmax, cmin)) hsv[0] = 0.0;
else if (pseudoeq(cmax, rgb[0]))
hsv[0] = fmod((60 * ((rgb[1] - rgb[2]) / diff) + 360), 360.0);
else if (pseudoeq(cmax, rgb[1]))
hsv[0] = fmod((60 * ((rgb[2] - rgb[0]) / diff) + 120), 360.0);
else if (pseudoeq(cmax, rgb[2]))
hsv[0] = fmod((60 * ((rgb[0] - rgb[1]) / diff) + 240), 360.0);
if (pseudoeq(cmax, 0.0)) hsv[1] = 0.0;
else hsv[1] = (diff / cmax) / 100.0;
hsv[2] = cmax * 100.0; /* WHAT THE FUCK ? */
#if DEBUG_LEVEL
fprintf(stderr, "cmin/cmax %f %f\n", cmin, cmax);
#endif
return 0;
}
/* --------------------------------------------------------------------- */
int fimg_hsv2rgb(float hsv[3], float rgb[3], float scale)
{
float hh, ff, p, q, t;
long i;
if(hsv[1] <= 0.0) { // < is bogus, just shuts up warnings
rgb[0] = rgb[1] = rgb[2] = hsv[2];
return 0;
}
hh = hsv[0];
if(hh >= 360.0) hh = 0.0;
hh /= 60.0;
i = (long)hh;
ff = hh - i;
p = hsv[2] * (1.0 - hsv[1]);
q = hsv[2] * (1.0 - (hsv[1] * ff));
t = hsv[2] * (1.0 - (hsv[1] * (1.0 - ff)));
switch(i) {
case 0:
rgb[0] = hsv[2]; rgb[1] = t; rgb[2] = p;
break;
case 1:
rgb[0] = q; rgb[1] = hsv[2]; rgb[2] = p;
break;
case 2:
rgb[0] = p; rgb[1] = hsv[2]; rgb[2] = t;
break;
case 3:
rgb[0] = p; rgb[1] = q; rgb[2] = hsv[2];
break;
case 4:
rgb[0] = t; rgb[1] = p; rgb[2] = hsv[2];
break;
case 5:
default:
rgb[0] = hsv[2]; rgb[1] = p; rgb[2] = q;
break;
}
return 0;
}
/* --------------------------------------------------------------------- */
/*
* expect garbage !
*/
int fimg_essai_hsv(char *fname)
{
float colors[3], values[3], newcols[3];
int foo, r, g, b;
#define INC 16
for (r=0; r<255; r+=INC) {
for (g=0; g<255; g+=INC) {
for (b=0; b<255; b+=INC) {
printf("%4d %4d %4d ", r, g, b);
colors[0] = (float)r;
colors[1] = (float)g;
colors[2] = (float)b;
foo = fimg_rgb2hsv(colors, values, 255.0);
if (foo) {
fprintf(stderr, "%s: err %d in rgv->hsv\n", __func__, foo);
exit(1);
}
printf(" %8.4f %8.4f %8.4f ",
values[0], values[1], values[2]);
foo = fimg_hsv2rgb(values, newcols, 255.0);
if (foo) {
fprintf(stderr, "%s: err %d in hsv->rgb\n", __func__, foo);
exit(1);
}
printf(" %8.4f %8.4f %8.4f\n",
newcols[0], newcols[1], newcols[2]);
}
}
}
return -1;
}
/* --------------------------------------------------------------------- */

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/*
* incrustator VERY experimental
* KRKRK
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "../floatimg.h"
// XXX #include "incrustator.h"
extern int verbosity;
/* ---------------------------------------------------------------- */
static int check_boundaries(FloatImg *from, FloatImg *to, FimgArea51 *a51)
{
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %p %p )\n", __func__, from, to, a51);
fimg_printdims("from", from);
fimg_printdims("to ", to);
#endif
/* just a small molly-guard */
if ( (a51->w < 0) || (a51->h < 0) ) {
fprintf(stderr, "%s: fubar on %p\n", __func__, a51);
abort(); /* FY Bro ! */
}
return -1;
}
/* ---------------------------------------------------------------- */
static int move_pixels(FloatImg *from, FloatImg *to,
FimgArea51 *a51, int flags)
{
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %p %p 0x%04x )\n", __func__,
from, to, a51, flags);
#endif
return -1;
}
/* ---------------------------------------------------------------- */
int fimg_incrustator_0(FloatImg *psrc, FloatImg *pdst,
int xpos, int ypos, int flags)
{
int y, srcpos, dstpos, szl;
int foo;
FimgArea51 area;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %p %d %d 0x%04X\n", __func__, psrc, pdst,
xpos, ypos, flags);
#endif
if (verbosity > 1) {
fimg_describe(psrc, "source");
fimg_describe(pdst, "destination");
}
/* check boudaries */
area.x = xpos; area.y = ypos;
area.w = psrc->width; area.h = psrc->height;
foo = check_boundaries(psrc, pdst, &area);
if ( (xpos < 0) || (xpos > pdst->width - psrc->width) ||
(ypos < 0) || (ypos > pdst->height - psrc->height) ) {
fprintf(stderr, "%s: boudary error\n", __func__);
return -2;
}
/* move all the data by looping over lines */
srcpos = 0;
dstpos = (ypos * pdst->width) + xpos;
szl = psrc->width * sizeof(float);
for (y=0; y<psrc->height; y++) {
// fprintf(stderr, " %7d %7d %7d\n", y, srcpos, dstpos);
memcpy(pdst->R + dstpos, psrc->R + srcpos, szl);
memcpy(pdst->G + dstpos, psrc->G + srcpos, szl);
memcpy(pdst->B + dstpos, psrc->B + srcpos, szl);
srcpos += psrc->width;
dstpos += pdst->width;
}
return 0;
}
/* ---------------------------------------------------------------- */

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/*
* This is an eternal WIP, sorry...
*/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "../floatimg.h"
/* --------------------------------------------------------------------- */
int fimg_test_pattern(FloatImg *fimg, int type, double dval)
{
int nio;
int x, y, k;
float fr, fg, fb, val;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %d %g )\n", __func__, fimg, type, dval);
#endif
if (fimg->type != FIMG_TYPE_RGB) {
fprintf(stderr, "%s need an rgb pic\n", __func__);
return -6;
}
/* rampe de primaires dans le quart du haut */
val = (float)dval;
for (x=0; x<fimg->width; x++) {
nio = x / (fimg->width / 8);
switch(nio) {
case 0: fr = 0.0, fg = 0.0, fb = 0.0; break;
case 1: fr = val, fg = 0.0, fb = 0.0; break;
case 2: fr = 0.0, fg = val, fb = 0.0; break;
case 3: fr = val, fg = val, fb = 0.0; break;
case 4: fr = 0.0, fg = 0.0, fb = val; break;
case 5: fr = val, fg = 0.0, fb = val; break;
case 6: fr = 0.0, fg = val, fb = val; break;
case 7: fr = val, fg = val, fb = val; break;
default:
abort(); break;
}
for (y=0; y<fimg->height/4; y++)
fimg_plot_rgb(fimg, x, y, fr, fg, fb);
}
k = fimg->height / 4;
for (x=0; x<fimg->width; x++) {
val = ((double)x / (double)fimg->width) * dval;
for (y=0; y<20; y++) {
fimg_plot_rgb(fimg, x, k+y, val, val, val);
fimg_plot_rgb(fimg, x, k+y+20, dval-val, dval-val, dval-val);
}
// fprintf(stderr, " %6d %f\n", x, val);
}
return 0;
}
/* --------------------------------------------------------------------- */
int fimg_draw_something(FloatImg *fimg)
{
int x, y;
float fx, fy;
#define K (3.14159*13.456)
#define M 100.0
for (x=0; x<fimg->width; x++) {
fimg_plot_rgb(fimg, x, 0,
(float)x,
(float)x + 5.678,
(float)x * 1.33333);
}
for (y=1; y<fimg->height; y++) {
fy = (float)y / (float)fimg->height;
for (x=0; x<fimg->width; x++) {
fx = (float)x / (float)fimg->width;
fimg_plot_rgb(fimg, x, y,
M*(cos(fx*K)+1.2),
M*(sin(fy*K)+1.4),
M*(cos(fx*fy)+1.6));
}
}
return 0;
}
/* --------------------------------------------------------------------- */
int fimg_multirandom(FloatImg *fimg, long nbpass)
{
int foo, x, y;
#define RI ( (rand()/7) + (rand()/9) )
#define RD ( (drand48()/7) + (drand48()/7) )
for (foo=0; foo<nbpass; foo++)
{
x = RI % fimg->width;
y = RI % fimg->height;
fimg_add_rgb(fimg, x, y, RD, RD, RD);
}
return 0;
}
/* --------------------------------------------------------------------- */

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/*
PLASMAS
Inspiration Reep : https://blog.314r.net/2021/01/10/plasma/
*/
#include <stdio.h>
#include <math.h>
#include "../floatimg.h"
extern int verbosity;
/* --------------------------------------------------------------------- */
/* --------------------------------------------------------------------- */
int fimg_prototype_plasma(FloatImg *img, double time, int type)
{
int x, y;
float rgb[3];
double dx, dy;
fprintf(stderr, ">>> %s ( %p %.3f %d )\n", __func__,
img, time, type);
for (y=0; y<img->height; y++) {
dy = ((double)y/(double)img->height) - 0.5000;
for (x=0; x<img->width; x++) {
dx = ((double)x/(double)img->width) - 0.5000;
rgb[0] = sin(dx*10 + time) + 1.0;
rgb[1] = sin(dx*12 + time) + 1.0;
rgb[2] = sin(dx*14 + time) + 1.0;
fimg_put_rgb(img, x, y, rgb);
}
}
return 0;
}
/* --------------------------------------------------------------------- */

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/*
* qsort_rgb.c
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "../floatimg.h"
extern int verbosity;
/* --------------------------------------------------------------------- */
/* nouveau 7 octobre 2020, juste avant sonoptic de la pluie craignos */
static int compare_a(const void *p1, const void *p2)
{
return ( *(float *)p1 < *(float *)p2 );
}
int fimg_qsort_rgb_a(FloatImg *psrc, FloatImg *pdst, int notused)
{
int foo, szimg;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %p %d )\n", __func__, psrc, pdst, notused);
#endif
if (FIMG_TYPE_RGB != psrc->type) {
fprintf(stderr, "%s: bad src type %d\n", __func__, psrc->type);
return -7;
}
if (fimg_images_not_compatible(psrc, pdst)) {
fprintf(stderr, "%s: bad dst type %d\n", __func__, pdst->type);
return -8;
}
if (psrc != pdst) { /* optimize or futurbug ? */
foo = fimg_copy_data(psrc, pdst);
if (foo) {
fprintf(stderr, "%s: err %d on copy data\n", __func__, foo);
return foo;
}
}
szimg = pdst->width * pdst->height;
// fprintf(stderr, "%s : %d pixels\n", __func__, szimg);
qsort(pdst->R, szimg, sizeof(float), compare_a);
qsort(pdst->G, szimg, sizeof(float), compare_a);
qsort(pdst->B, szimg, sizeof(float), compare_a);
return 0;
}
/* --------------------------------------------------------------------- */
typedef struct {
float sum;
float r, g, b;
} pix;
static int compare_b(const void *p1, const void *p2)
{
pix *s1, *s2;
s1 = (pix *)p1;
s2 = (pix *)p2;
return ( s1->sum < s2->sum );
}
int fimg_qsort_rgb_b(FloatImg *psrc, FloatImg *pdst, int notused)
{
int x, y, szimg;
pix *ppix, *ptr;
float rgb[3];
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %p %d )\n", __func__, psrc, pdst, notused);
#endif
if (FIMG_TYPE_RGB != psrc->type) {
fprintf(stderr, "%s: bad src type %d\n", __func__, psrc->type);
return -7;
}
if (fimg_images_not_compatible(psrc, pdst)) {
fprintf(stderr, "%s: bad dst type %d\n", __func__, pdst->type);
return -8;
}
szimg = pdst->width * pdst->height;
// fprintf(stderr, "%s : %d pixels\n", __func__, szimg);
ppix = calloc(szimg, sizeof(pix));
ptr = ppix; /* mobile pointer */
for (y=0; y<psrc->height; y++) {
for (x=0; x<psrc->width; x++) {
fimg_get_rgb(psrc, x, y, rgb);
ptr->sum = rgb[0] + rgb[1] + rgb[2];
ptr->r = rgb[0];
ptr->g = rgb[1];
ptr->b = rgb[2];
ptr++; /* next pixel */
}
}
qsort(ppix, szimg, sizeof(pix), compare_b);
ptr = ppix; /* mobile pointer */
for (y=0; y<psrc->height; y++) {
for (x=0; x<psrc->width; x++) {
rgb[0] = ptr->r;
rgb[1] = ptr->g;
rgb[2] = ptr->b;
fimg_put_rgb(pdst, x, y, rgb);
ptr++; /* next pixel */
}
}
free(ppix);
return 0;
}
/* --------------------------------------------------------------------- */

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/*
* FLOATIMG
* rampes diverses, trucs etranges
*/
#include <stdio.h>
#include "../floatimg.h"
/* --------------------------------------------------------------------- */
int fimg_hdeg_a(FloatImg *img, double dcoef)
{
int x, y;
float value;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %f )\n", __func__, img, dcoef);
#endif
if (FIMG_TYPE_RGB != img->type) {
fprintf(stderr, "%s bad type\n", __func__);
return -6;
}
for (x=0; x<img->width; x++)
{
value = (float)x / (float)img->width;
value *= dcoef;
for (y=0; y<img->height; y++) {
fimg_plot_rgb(img, x, y, value, value, value);
}
}
return 0;
}
/* --------------------------------------------------------------------- */
/*
* To have the black at the bottom, use a negative dcoef
*/
int fimg_vdeg_a(FloatImg *img, double dcoef)
{
int x, y;
float value;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %f )\n", __func__, img, dcoef);
#endif
if (FIMG_TYPE_RGB != img->type) {
fprintf(stderr, "%s bad type\n", __func__);
return -6;
}
for (y=0; y<img->height; y++)
{
value = (float)y / (float)img->height;
value *= dcoef;
for (x=0; x<img->width; x++) {
fimg_plot_rgb(img, x, y, value, value, value);
}
}
return 0;
}
/* --------------------------------------------------------------------- */

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/*
RECURSION 'QUADTREE' SUR LES IMAGES
-----------------------------------
*/
#include <stdio.h>
#include <math.h>
#include "../floatimg.h"
/* -------------------------------------------------------------------- */
/* may be we need some private variables ? */
/* -------------------------------------------------------------------- */
/* nouveau 29 avril 2021, pendant un autre masque-flamme coronavidique */
int fimg_recursion_proto(FloatImg *src, FloatImg *dst, int notused)
{
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %p %d )\n", __func__, src, dst, notused);
#endif
return -1;
}
/* -------------------------------------------------------------------- */
/* -------------------------------------------------------------------- */

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/*
* FLOATIMG
* rotation matricielle des images
* #coronamaison Mon 23 Mar 2020 11:45:59 AM CET
*/
#include <stdio.h>
#include <string.h>
#include "../floatimg.h"
extern int verbosity;
/* --------------------------------------------------------------------- */
int fimg_rotate_90(FloatImg *src, FloatImg *dst, int notused)
{
int foo;
int x, y, k;
float rgb[3];
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %p %d )\n", __func__,
src, dst, notused);
#endif
if (src->type != FIMG_TYPE_RGB) {
fprintf(stderr, "%s: src type %d not valid\n", __func__,
src->type);
return -6;
}
/* check if dst pic is not allocated */
if ( 0 == (dst->type | dst->width | dst->height) ) {
#if DEBUG_LEVEL
fprintf(stderr, "in %s, %p is empty\n", __func__, dst);
#endif
/* OK allocate a new fpic */
foo = fimg_create(dst, src->height, src->width, src->type);
if (foo) {
fprintf(stderr, "%s: err %d create new pic\n", __func__, foo);
return -887;
}
// if (verbosity>1) fimg_describe(dst, "new pic");
}
/* check if dst and src are conpatibles */
if ( (src->type != dst->type) ||
(src->width != dst->height) || (src->height != dst->width) ) {
fprintf(stderr, "%s: src & dst not compatibles\n", __func__);
return -888;
}
/*
* THIS IS A CRUDE IMPLEMENTATION
*/
for (y=0; y<src->height; y++) {
for (x=0; x<src->width; x++) {
fimg_get_rgb(src, x, y, rgb);
// XXX ??? j = (dst->height - x) - 1;
k = (dst->width - y) - 1;
#if DEBUG_LEVEL > 1
fprintf(stderr, "%6d %6d\n", k, j);
#endif
fimg_put_rgb(dst, k, x, rgb);
}
}
/* we don't have any cleanup to make */
return 0;
}
/* --------------------------------------------------------------------- */

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/*
* FloatImg library from tTh - really ugly code inside
*/
#include <stdio.h>
#include "../floatimg.h"
/* -------------------------------------------------------------- */
/* global vars exported from main
*/
extern int verbosity;
/* -------------------------------------------------------------- */
/*
* parameter mix is between 0.0 and 1.0 but other
* values give sometime good vibrations.
*/
int fimg_mix_rgb_gray(FloatImg *img, float mix)
{
int x, y, p;
float gr;
if (FIMG_TYPE_RGB != img->type) {
fprintf(stderr, "%s bad type\n", __func__);
return -6;
}
for (y=0; y<img->height; y++) {
p = y * img->width; /* first pixel of the row */
for (x=0; x<img->width; x++) {
gr = (img->R[p] + img->G[p] + img->R[p]) / 3.0;
img->R[p] = ((gr * mix) + (img->R[p] * (1.0-mix))) / 2.0;
img->G[p] = ((gr * mix) + (img->G[p] * (1.0-mix))) / 2.0;
img->B[p] = ((gr * mix) + (img->B[p] * (1.0-mix))) / 2.0;
p++; /* next pixel in the row */
}
}
return 0;
}
/* -------------------------------------------------------------- */
/*
* The third parameter was a six value array with min and max
* values maybe computed by the 'fimg_get_minmax_rgb' function.
*/
int fimg_shift_to_zero(FloatImg *s, FloatImg *d, float coefs[6])
{
int sz, idx;
if (FIMG_TYPE_RGB != s->type) {
fprintf(stderr, "%s bad type\n", __func__);
return -6;
}
sz = s->width * s->height;
for (idx=0; idx<sz; idx++) {
d->R[idx] = s->R[idx] - coefs[0];
d->G[idx] = s->G[idx] - coefs[2];
d->B[idx] = s->B[idx] - coefs[4];
}
return 0;
}
/* -------------------------------------------------------------- */
/*
* I think that this function is fully buggy, and need
* more explanations.
*/
int fimg_auto_shift_to_zero(FloatImg *src, FloatImg *dst)
{
float coefs[6];
int foo;
float minima = 1e7; /* magic value ? */
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %p )\n", __func__, src, dst);
#endif
if (FIMG_TYPE_RGB != src->type) {
fprintf(stderr, "%s: bad image type %d\n", __func__, src->type);
return -6;
}
foo = fimg_get_minmax_rgb(src, coefs);
if (foo) {
fprintf(stderr, "%s: err %d get minmax\n", __func__, foo);
return foo;
}
/* crude hack for now */
if (coefs[0] < minima) minima = coefs[0];
if (coefs[2] < minima) minima = coefs[2];
if (coefs[4] < minima) minima = coefs[4];
coefs[0] = coefs[2] = coefs[4] = minima;
foo = fimg_shift_to_zero(src, dst, coefs);
if (foo) {
fprintf(stderr, "%s WTF?\n", __func__);
return foo;
}
return 0;
}
/* -------------------------------------------------------------- */

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/*
* FLOATIMG
* effets spéciaux àlc sur les couleurs
*/
#include <stdio.h>
#include <string.h>
#include "../floatimg.h"
/* --------------------------------------------------------------------- */
/*
* OMG ! a Color Graphic Adaptor emulator :)
*/
int fimg_killcolors_a(FloatImg *fimg, float fval)
{
int nbpix, foo;
if (FIMG_TYPE_RGB != fimg->type) {
fprintf(stderr, "%s: bad src type %d on %p\n", __func__,
fimg->type, fimg);
return -8;
}
nbpix = fimg->width * fimg->height;
for (foo=0; foo<nbpix; foo++) {
if (fimg->R[foo] > fimg->G[foo])
fimg->B[foo] = fimg->R[foo];
else
fimg->B[foo] = fimg->G[foo];
}
return 0;
}
/* --------------------------------------------------------------------- */
/*
* parameter fval is not used, why ?
*/
int fimg_killcolors_b(FloatImg *fimg, float fval)
{
int nbpix, foo;
if (FIMG_TYPE_RGB != fimg->type) {
fprintf(stderr, "%s: bad src type %d on %p\n", __func__,
fimg->type, fimg);
return -8;
}
nbpix = fimg->width * fimg->height;
for (foo=0; foo<nbpix; foo++) {
if (fimg->R[foo] > fimg->B[foo])
fimg->G[foo] = fimg->R[foo];
else
fimg->G[foo] = fimg->B[foo];
}
return 0;
}
/* --------------------------------------------------------------------- */
int fimg_colors_mixer_a(FloatImg *fimg, float fval)
{
int nbpix, foo;
float R, G, B;
if (FIMG_TYPE_RGB != fimg->type) {
fprintf(stderr, "%s: bad src type %d on %p\n", __func__,
fimg->type, fimg);
#if MUST_ABORT
abort();
#endif
return -8;
}
nbpix = fimg->width * fimg->height;
for (foo=0; foo<nbpix; foo++) {
R = (fimg->G[foo] + fimg->B[foo]) / fval;
G = (fimg->R[foo] + fimg->B[foo]) / fval;
B = (fimg->R[foo] + fimg->G[foo]) / fval;
fimg->R[foo] = R;
fimg->G[foo] = G;
fimg->B[foo] = B;
}
return 0;
}
/* --------------------------------------------------------------------- */

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/*
* FLOATIMG - a kluge from tTh
* effets spéciaux bizarres sur les couleurs.
* nouveau pour un truc chelou avec Maëva
*/
#include <stdio.h>
#include <string.h>
#include "../floatimg.h"
/* WARNING
some crapy code cuted & pasted here */
/* --------------------------------------------------------------------- */
static void highlight_red(FloatImg *src, FloatImg *dst, float fval)
{
int sz, idx;
sz = src->width * src->height;
for (idx=0; idx<sz; idx++) {
dst->G[idx] = src->G[idx];
dst->B[idx] = src->B[idx];
if ( (src->G[idx] < src->R[idx]) &&
(src->B[idx] < src->R[idx]) ) {
dst->R[idx] = src->R[idx] * fval;
}
else {
dst->R[idx] = src->R[idx];
}
}
}
/* --------------------------------------------------------------------- */
static void highlight_green(FloatImg *src, FloatImg *dst, float fval)
{
int sz, idx;
sz = src->width * src->height;
for (idx=0; idx<sz; idx++) {
dst->R[idx] = src->R[idx];
dst->B[idx] = src->B[idx];
if ( (src->R[idx] < src->R[idx]) &&
(src->B[idx] < src->R[idx]) ) {
dst->G[idx] = src->G[idx] * fval;
}
else {
dst->G[idx] = src->G[idx];
}
}
}
/* --------------------------------------------------------------------- */
static void highlight_blue(FloatImg *src, FloatImg *dst, float fval)
{
int sz, idx;
sz = src->width * src->height;
for (idx=0; idx<sz; idx++) {
dst->G[idx] = src->G[idx];
dst->R[idx] = src->R[idx];
if ( (src->G[idx] < src->B[idx]) &&
(src->R[idx] < src->B[idx]) ) {
dst->B[idx] = src->B[idx] * fval;
}
else {
dst->B[idx] = src->B[idx];
}
}
}
/* --------------------------------------------------------------------- */
int fimg_highlight_color(FloatImg *src, FloatImg *dst, char color, float fval)
{
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %p [%c] %f )\n", __func__,
src, dst, color, fval);
#endif
if (FIMG_TYPE_RGB != src->type) {
fprintf(stderr, "%s: bad src type %d on %p\n", __func__,
src->type, src);
return -8;
}
if (fimg_images_not_compatible(src, dst)) {
fprintf(stderr, "oh fuck in %s\n", __func__);
return -9;
}
switch (color) {
case 'r': case 'R':
highlight_red(src, dst, fval); break;
case 'g': case 'G':
highlight_green(src, dst, fval); break;
case 'b': case 'B':
highlight_blue(src, dst, fval); break;
default:
fprintf(stderr, "%s: '%c' is invalid\n", __func__, color);
return -11;
break; /* nottreached */
}
return 0;
}
/* --------------------------------------------------------------------- */
/* --------------------------------------------------------------------- */

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/*
* FLOATIMG - a kluge from tTh
*/
#include <stdio.h>
#include <string.h>
#include "../floatimg.h"
extern int verbosity;
/*
* a place for moving here Fonderie effects
*/
/* -------------------------------------------------------------- */
int fimg_binarize(FloatImg *pimg, int notused)
{
float mm[6], mR, mG, mB;
int foo, size;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %d )\n", __func__, pimg, notused);
#endif
foo = fimg_get_minmax_rgb(pimg, mm);
mR = (mm[1] - mm[0]) / 2.0;
mG = (mm[3] - mm[2]) / 2.0;
mB = (mm[5] - mm[4]) / 2.0;
if (verbosity > 1)
fprintf(stderr, "%s: %f %f %f\n", __func__, mR, mG, mB);
size = pimg->width * pimg->height;
for (foo=0; foo<size; foo++) {
if (pimg->R[foo] < mR) pimg->R[foo] = mm[0];
else pimg->R[foo] = mm[1];
if (pimg->G[foo] < mG) pimg->G[foo] = mm[2];
else pimg->G[foo] = mm[3];
if (pimg->B[foo] < mB) pimg->B[foo] = mm[4];
else pimg->B[foo] = mm[5];
}
return 0;
}
/* -------------------------------------------------------------- */
int fimg_trinarize(FloatImg *pimg, int notused)
{
float mm[6], mRa, mGa, mBa, mRb, mGb, mBb;
float *fptr;
int foo, size;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %d )\n", __func__, pimg, notused);
#endif
foo = fimg_get_minmax_rgb(pimg, mm);
mRa = (mm[1] - mm[0]) * 0.33333;
mGa = (mm[3] - mm[2]) * 0.33333;
mBa = (mm[5] - mm[4]) * 0.33333;
mRb = (mm[1] - mm[0]) * 0.66666;
mGb = (mm[3] - mm[2]) * 0.66666;
mBb = (mm[5] - mm[4]) * 0.66666;
size = pimg->width * pimg->height;
for (foo=0; foo<size; foo++) {
fptr = pimg->R;
if (fptr[foo] < mRa || fptr[foo] > mRb)
fptr[foo] = mm[0];
else
fptr[foo] = mm[1];
fptr = pimg->G;
if (fptr[foo] < mGa || fptr[foo] > mGb)
fptr[foo] = mm[2];
else
fptr[foo] = mm[3];
fptr = pimg->B;
if (fptr[foo] < mBa || fptr[foo] > mBb)
fptr[foo] = mm[4];
else
fptr[foo] = mm[5];
}
return 0;
}
/* -------------------------------------------------------------- */

231
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/*
* tests des fonctions diverses - main file
see also: tests.c
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pam.h>
#undef DEBUG_LEVEL
#define DEBUG_LEVEL 1
#include "../floatimg.h"
#include "tests.h"
int verbosity;
float global_fvalue;
/* --------------------------------------------------------------------- */
/* --------------------------------------------------------------------- */
enum nCmd { Equalize=1, Rotate, Sfx0, F3x3, MIRE, Wfits, Wpng, Wtiff,
Histo, Hsv, Classif, Ctr2x2, Qsortrgb,
Displace, ReadPNG, Plasmas, Hilight, OpenEXR,
Geometrie, FileType, Mirror };
typedef struct {
char *name;
int Cmd;
} Command;
Command commands[] = {
{ "equalize", Equalize },
{ "rotate", Rotate },
{ "sfx0", Sfx0 },
{ "f3x3", F3x3 },
{ "mire", MIRE },
{ "wfits", Wfits },
{ "wpng", Wpng },
{ "wtiff", Wtiff },
{ "histo", Histo },
{ "hsv", Hsv },
{ "classif", Classif },
{ "ctr2x2", Ctr2x2 },
{ "qsortrgb", Qsortrgb },
{ "displace", Displace },
{ "readpng", ReadPNG },
{ "plasma", Plasmas },
{ "hilight", Hilight },
{ "openexr", OpenEXR },
{ "geometrie", Geometrie, },
{ "filetype", FileType },
{ "mirror", Mirror },
{ NULL, 0 }
} ;
/* --------------------------------------------------------------------- */
int lookup_cmd(char *cmdtxt)
{
Command *pcmd;
pcmd = commands;
while (pcmd->name) {
if (!strcmp(pcmd->name, cmdtxt)) return pcmd->Cmd;
pcmd++;
}
return -1;
}
/* --------------------------------------------------------------------- */
void list_tests(void)
{
Command *pcmd = commands;
while (pcmd->name) {
printf("%s\n", pcmd->name);
pcmd++;
}
exit(0);
}
/* --------------------------------------------------------------------- */
void help(int k)
{
Command *pcmd;
fprintf(stderr, "usage:\n\t./t [options] command [filename]\n");
fprintf(stderr, "options:\n");
fprintf(stderr, "\t-k 1.414\tset float value\n");
fprintf(stderr, "\t-l\t\tlist tests\n");
fprintf(stderr, "\t-o \t\toutfile\n");
fprintf(stderr, "commands:\n");
pcmd = commands;
while (pcmd->name) {
fprintf(stderr, "\t%-15s %d\n", pcmd->name, pcmd->Cmd);
pcmd++;
}
fprintf(stderr, "\ncompiled on "__DATE__" at "__TIME__"\n");
exit(0);
}
/* --------------------------------------------------------------------- */
int main(int argc, char *argv[])
{
int foo, opt;
char *filename, *command, *outfile;
fprintf(stderr, "++++++++ test des fonctions pid=%d\n", getpid());
fprintf(stderr, "++++++++ compiled "__DATE__" at " __TIME__ "\n");
global_fvalue = 1.0;
outfile = "out.pnm";
command = "none";
filename = "in.fimg";
while ((opt = getopt(argc, argv, "hk:lo:p:v")) != -1) {
// fprintf(stderr, "opt = %c\n", opt);
switch(opt) {
case 'h': help(0); break;
case 'k': global_fvalue = atof(optarg); break;
case 'l': list_tests(); break;
case 'o': outfile = optarg; break;
case 'v': verbosity++; break;
}
}
// fprintf(stderr, "argc %d optind %d\n", argc, optind);
switch (argc-optind) {
case 1: /* only command */
command = argv[optind];
break;
case 2:
command = argv[optind];
filename = argv[optind+1];
break;
default:
fprintf(stderr, "%s: bad command line ?\n", argv[0]);
help(1);
break;
}
if (verbosity) {
fprintf(stderr, "++++++++ %s : running command '%s' on '%s'\n",
argv[0], command, filename);
fprintf(stderr, "global fvalue : %f\n", global_fvalue);
}
opt = lookup_cmd(command);
// fprintf(stderr, "lookup '%s' --> %d\n", command, opt);
switch(opt) {
case Equalize:
foo = essai_equalize(filename); break;
case Sfx0:
foo = essai_sfx0(filename); break;
case F3x3:
foo = essai_filtrage_3x3(filename); break;
case MIRE:
foo = essai_mire(filename, 0);
break;
case Wfits:
foo = essai_ecriture_fits("out.fits");
break;
case Wpng:
foo = essai_ecriture_png("out.png");
break;
case Wtiff:
foo = essai_ecriture_tiff("out.tiff");
break;
case Histo:
foo = essai_histogramme(filename, 98765);
break;
case Hsv:
// not ready for primtime
// foo = fimg_essai_hsv(filename);
foo = 0;
break;
case Classif:
foo = essai_classif(filename, outfile, global_fvalue);
break;
case Ctr2x2:
foo = essai_contour_2x2(filename, outfile);
break;
case Qsortrgb:
foo = essai_qsort_rgb(filename, outfile);
break;
case Displace:
foo = essai_displacement(filename, outfile);
break;
case ReadPNG:
// not ready for primetime
// foo = essai_lecture_png("in.png", outfile, 0);
foo = 0;
break;
case Plasmas:
foo = essai_plasma(filename, outfile, 1, global_fvalue);
fprintf(stderr, "we are all plasmafields\n");
break;
case Rotate:
fprintf(stderr, "rotate not implemented (%d)\n", rand());
foo = 0;
break;
case Hilight:
foo = essai_highlights(filename, outfile, 0, global_fvalue);
break;
case OpenEXR:
foo = essai_openexr(filename, outfile, 0x55);
break;
case Geometrie:
foo = essai_geometrie(filename, 0);
break;
case FileType:
foo = essai_detect_type();
break;
case Mirror:
foo = essai_miroir(filename, outfile, 0);
break;
default:
fprintf(stderr, "'%s' is a bad command\n", command);
exit(1);
}
if (foo) {
fprintf(stderr, "******* Essai --> %d\n", foo);
}
fprintf(stderr, "++++++++++++ end of '%s' pid %d\n", command, getpid());
return 0;
}
/* --------------------------------------------------------------------- */

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/*
* tests des fonctions diverses - subroutines
see also: t.c
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pam.h>
#undef DEBUG_LEVEL
#define DEBUG_LEVEL 1
#include "../floatimg.h"
#include "tests.h"
extern int verbosity;
/* --------------------------------------------------------------------- */
int fimg_recursion_proto(FloatImg *src, FloatImg *dst, int notused);
int essai_recursion(char *inf, char *outf, int flags)
{
int foo;
FloatImg src, dst;
fprintf(stderr, ">>> %s ( '%s' '%s' 0x%04X )\n", __func__,
inf, outf, flags);
foo = fimg_create_from_dump(inf, &src);
if (0 != foo) {
fprintf(stderr, "%s: err %d loading image '%s'\n", __func__,
foo, inf);
return foo;
}
fimg_clone(&src, &dst, 0);
foo = fimg_recursion_proto(&src, &dst, flags);
if (foo) {
fprintf(stderr, "%s: fail %d\n", __func__, foo);
return foo;
}
foo = fimg_export_picture(&dst, outf, 0);
if (foo) {
fprintf(stderr, "%s : err %d saving result\n", __func__, foo);
return foo;
}
return -1;
}
/* --------------------------------------------------------------------- */
int essai_miroir(char *inf, char *outf, int flags)
{
int foo;
FloatImg src, dst;
fprintf(stderr, ">>> %s ( '%s' '%s' 0x%X )\n", __func__,
inf, outf, flags);
foo = fimg_create_from_dump(inf, &src);
if (0 != foo) {
fprintf(stderr, "%s: err %d loading image '%s'\n", __func__,
foo, inf);
return foo;
}
fimg_clone(&src, &dst, 0);
/* run the crappy code */
foo = fimg_mirror(&src, &dst, 0);
if (foo) {
fprintf(stderr, "err %d in fimg_mirrot\n", foo);
return -6;
}
foo = fimg_export_picture(&dst, outf, 0);
if (foo) {
fprintf(stderr, "%s : err %d saving result\n", __func__, foo);
return foo;
}
return 0;
}
/* --------------------------------------------------------------------- */
/* nouveau 21 mars 2021 - rue d'Aragon */
int essai_openexr(char *inf, char *outf, int flags)
{
FloatImg src;
int foo;
fprintf(stderr, ">>> %s ( '%s' '%s' 0x%X )\n", __func__,
inf, outf, flags);
foo = fimg_create_from_dump(inf, &src);
if (0 != foo) {
fprintf(stderr, "%s: err %d loading image '%s'\n", __func__,
foo, inf);
return foo;
}
// fprintf(stderr, "image loaded at %p\n", &src);
fimg_describe(&src, "for save EXR test");
foo = fimg_save_as_exr(&src, outf, flags);
fimg_destroy(&src);
return -2;
}
/* --------------------------------------------------------------------- */
/* nouveau 20 mars 2021 - rue d'Aragon */
int essai_highlights(char *inf, char *outf, int ikoef, float fkoef)
{
FloatImg src, dst;
int foo;
fprintf(stderr, ">>> %s ( '%s' '%s' %d %g )\n", __func__,
inf, outf, ikoef, fkoef);
foo = fimg_create_from_dump(inf, &src);
if (0 != foo) {
fprintf(stderr, "%s: err %d loading image '%s'\n", __func__,
foo, inf);
return foo;
}
fimg_clone(&src, &dst, 0);
foo = fimg_highlight_color(&src, &dst, 'R', fkoef);
if (foo) {
fprintf(stderr, "%s: err %d ?\n", __func__, foo);
return foo;
}
foo = fimg_export_picture(&dst, outf, 0);
if (foo) {
fprintf(stderr, "%s : err %d saving result\n", __func__, foo);
return foo;
}
return 0;
}
/* --------------------------------------------------------------------- */
int essai_plasma(char *infile, char *outfile, int ikoef, float fkoef)
{
FloatImg src, dst;
int foo;
fprintf(stderr, ">>> %s ( '%s' '%s' %d %g )\n", __func__,
infile, outfile, ikoef, fkoef);
/* if infile is loadable, use it for background */
foo = fimg_create_from_dump(infile, &src);
if (0 == foo) {
fprintf(stderr, "%s: image '%s' loaded\n", __func__, infile);
}
else {
/* make a fancy synthetic picture */
foo = fimg_create(&src, 800, 600, FIMG_TYPE_RGB);
}
fimg_printhead(&src);
fimg_clone(&src, &dst, 1);
foo = fimg_prototype_plasma(&dst, fkoef, 0);
if (foo) {
fprintf(stderr, "%s: err %d on plasma proto\n", __func__, foo);
return -88;
}
fimg_mul_3(&src, &dst, &dst);
foo = fimg_export_picture(&dst, outfile, 0);
if (foo) {
fprintf(stderr, "%s : err %d saving result\n", __func__, foo);
return foo;
}
return -1;
}
/* --------------------------------------------------------------------- */
/* nouveau 24 octobre 2020, pendant le masque-flamme coronavidique */
int essai_displacement(char *infile, char *outfile)
{
int foo;
FloatImg src, dst;
fprintf(stderr, "%s : loading %s\n", __func__, infile);
foo = fimg_create_from_dump(infile, &src);
if (foo) {
fprintf(stderr, "%s: error loading '%s'\n", __func__, infile);
return foo;
}
fimg_clone(&src, &dst, 1);
foo = fimg_displacement_0(&src, &dst, 0);
if (foo) {
fprintf(stderr, "%s: err %d in disp map 0\n", __func__, foo);
return foo;
}
foo = fimg_export_picture(&dst, outfile, 0);
if (foo) {
fprintf(stderr, "%s : err %d saving result\n", __func__, foo);
return foo;
}
return 0;
}
/* --------------------------------------------------------------------- */
/*
* nouveau 7 octobre 2020 pendant sonoptic
*
* inspiration: Olivier Baudu
*/
int essai_qsort_rgb(char *infile, char *outfile)
{
FloatImg src, dst;
int foo;
if (NULL != infile) {
fprintf(stderr, "%s : loading %s\n", __func__, infile);
foo = fimg_create_from_dump(infile, &src);
if (foo) {
fprintf(stderr, "%s: error loading '%s'\n", __func__, infile);
return foo;
}
}
else {
fprintf(stderr, "%s : NOT INPUT FILE, FUBAR\n", __func__);
abort();
}
fimg_clone(&src, &dst, 1);
foo = fimg_qsort_rgb_b(&src, &dst, 0);
if (foo) {
fprintf(stderr, "%s: err %d in qsort_rgb\n", __func__, foo);
return foo;
}
foo = fimg_export_picture(&dst, outfile, 0);
if (foo) {
fprintf(stderr, "%s : err %d saving result\n", __func__, foo);
return foo;
}
fimg_destroy(&src); fimg_destroy(&dst);
return 0;
}
/* --------------------------------------------------------------------- */
/*
* nouveau 5 octobre 2020 pendant sonoptic
*/
int essai_contour_2x2(char *infile, char *outfile)
{
FloatImg src, dst;
int foo;
if (NULL != infile) {
fprintf(stderr, "%s : loading %s\n", __func__, infile);
foo = fimg_create_from_dump(infile, &src);
if (foo) {
fprintf(stderr, "%s: error loading '%s'\n", __func__, infile);
return foo;
}
}
else {
fprintf(stderr, "%s : NOT INPUT FILE, FUBAR\n", __func__);
abort();
}
fimg_clone(&src, &dst, 1);
foo = fimg_contour_2x2(&src, &dst, 0);
if (foo) {
fprintf(stderr, "%s: err %d in contour_2x2\n", __func__, foo);
return foo;
}
foo = fimg_export_picture(&dst, outfile, 0);
if (foo) {
fprintf(stderr, "%s : err %d saving result\n", __func__, foo);
return foo;
}
fimg_destroy(&src); fimg_destroy(&dst);
return 0;
}
/* --------------------------------------------------------------------- */
/*
* nouveau 5 octobre 2020 pendant sonoptic
*/
int essai_classif(char *infile, char *outfile, float fvalue)
{
FloatImg src, dst;
int foo;
if (NULL != infile) {
fprintf(stderr, "%s : loading %s\n", __func__, infile);
foo = fimg_create_from_dump(infile, &src);
if (foo) {
fprintf(stderr, "%s: error loading '%s'\n", __func__, infile);
return foo;
}
}
else {
fprintf(stderr, "%s : NOT INPUT FILE, FUBAR\n", __func__);
abort();
}
fimg_clone(&src, &dst, 1);
fprintf(stderr, "%s : fvalue is %f\n", __func__, fvalue);
foo = fimg_classif_trial(&src, &dst, fvalue, 0);
if (foo) {
fprintf(stderr, "%s: err %d in classif_trial\n", __func__, foo);
return foo;
}
foo = fimg_export_picture(&dst, outfile, 0);
if (foo) {
fprintf(stderr, "%s : err %d saving result\n", __func__, foo);
return foo;
}
fimg_destroy(&src); fimg_destroy(&dst);
return 0;
}
/* --------------------------------------------------------------------- */
/* nouveau 19 aout 2020, le matin avant la canicule */
int essai_ecriture_tiff(char *outname)
{
int foo;
FloatImg picz;
fimg_create(&picz, 800, 600, FIMG_TYPE_RGB);
fimg_test_pattern(&picz, 0, 22222);
foo = fimg_write_as_tiff(&picz, outname, 0);
if (foo) {
fprintf(stderr, "%s got a %d\n", __func__, foo);
return foo;
}
return 0;
}
/* --------------------------------------------------------------------- */
/* essai de fichiers FITS (astronomie) */
int essai_ecriture_fits(char *outname)
{
FloatImg src;
int foo;
fprintf(stderr, "%s is creating the picz\n", __func__);
fimg_create(&src, 512, 512, FIMG_TYPE_RGB);
fimg_test_pattern(&src, 0, 255.0);
foo = fimg_save_R_as_fits(&src, outname, 0);
fprintf(stderr, "saving '%s' to fits --> %d\n", outname, foo);
return -1;
}
/* --------------------------------------------------------------------- */
/*
* egalisation dynamique approximative
* #coronamaison Thu 09 Apr 2020 03:37:10 PM CEST
*/
int essai_equalize(char *infile)
{
FloatImg src;
int foo;
if (NULL != infile) {
fprintf(stderr, "%s: loading %s\n", __func__, infile);
foo = fimg_create_from_dump(infile, &src);
if (foo) {
fprintf(stderr, "%s: err load '%s'\n", __func__, infile);
return foo;
}
}
else {
fprintf(stderr, "%s : NOT INPUT FILE, FUBAR\n", __func__);
abort();
}
/*
* XXX need more work on this function !
*/
foo = fimg_equalize_compute(&src, NULL, 666.666);
fprintf(stderr, "equalize compute --> %d\n", foo);
fimg_destroy(&src);
return 0;
}
/* --------------------------------------------------------------------- */
int essai_rotate(char *infile)
{
FloatImg src, dst;
int foo;
if (NULL != infile) {
fprintf(stderr, "%s: loading %s\n", __func__, infile);
foo = fimg_create_from_dump(infile, &src);
if (foo) {
fprintf(stderr, "%s: err load '%s'\n", __func__, infile);
return foo;
}
}
else {
fprintf(stderr, "%s : NOT INPUT FILE, FUBAR\n", __func__);
abort();
}
fimg_save_as_png(&src, "test.png", 0);
foo = fimg_rotate_90(&src, &dst, 0);
fprintf(stderr, "rotate 90 -> %d\n", foo);
foo = fimg_export_picture(&dst, "rotated90.png", 0);
foo = fimg_export_picture(&dst, "rotated90.pnm", 0);
fimg_destroy(&src);
return -1;
}
/* --------------------------------------------------------------------- */
int essai_filtrage_3x3(char *infile)
{
FloatImg src, dst;
int foo; /// , idx;
// char buffer[100];
FimgFilter3x3 filter_a = {
{ 1.0, 1.0, 1.0,
1.0, -3.0, 1.0,
1.0, 1.0, 1.0 },
9.0, 0.0
};
FimgFilter3x3 filter_b = {
{ -2.0, -1.0, 0.0,
-1.0, 3.0, 1.0,
0.0, 1.0, 2.0 },
8.0, 0.0
};
FimgFilter3x3 filter_c = {
{
2.0, 1.0, 0.0,
1.0, 0.0, -1.0,
0.0, -1.0, -2.0,
},
1.0, 8.0
};
if (NULL != infile) {
fprintf(stderr, "%s: loading %s\n", __func__, infile);
foo = fimg_create_from_dump(infile, &src);
if (foo) {
fprintf(stderr, "%s: err load '%s'\n", __func__, infile);
return foo;
}
}
else {
fprintf(stderr, "%s is creating the picz\n", __func__);
fimg_create(&src, 640, 480, FIMG_TYPE_RGB);
fimg_test_pattern(&src, 0, 255.0);
}
// fimg_save_as_png(&src, "test.png", 0);
foo = fimg_count_negativ(&src);
fprintf(stderr, "%s: source have %d negs\n", __func__, foo);
foo = fimg_clone(&src, &dst, 0);
if (foo) {
fprintf(stderr, "%s: err clone %p\n", __func__, &src);
return -44;
}
fimg_filter_3x3(&src, &dst, &filter_a);
foo = fimg_clamp_negativ(&dst);
if (foo) {
fprintf(stderr, "A clamped %d negative pixels\n", foo);
}
foo = fimg_save_as_png(&dst, "f3x3a.png", 0);
// foo = fimg_save_as_pnm(&dst, "f3x3a.pnm", 0);
fimg_filter_3x3(&src, &dst, &filter_b);
foo = fimg_clamp_negativ(&dst);
if (foo) {
fprintf(stderr, "B clamped %d negative pixels\n", foo);
}
foo = fimg_save_as_png(&dst, "f3x3b.png", 0);
// foo = fimg_save_as_pnm(&dst, "f3x3a.pnm", 0);
fimg_filter_3x3(&src, &dst, &filter_c);
foo = fimg_clamp_negativ(&dst);
if (foo) {
fprintf(stderr, "C clamped %d negative pixels\n", foo);
}
foo = fimg_save_as_png(&dst, "f3x3b.png", 0);
// foo = fimg_save_as_pnm(&dst, "f3x3a.pnm", 0);
fimg_destroy(&src); fimg_destroy(&dst);
return 0;
}
/* --------------------------------------------------------------------- */
int essai_filtrage_2x2(char *infile)
{
FloatImg fimg;
int foo, idx;
char buffer[100];
if (NULL != infile) {
fprintf(stderr, "%s: loading %s\n", __func__, infile);
foo = fimg_create_from_dump(infile, &fimg);
if (foo) {
fprintf(stderr, "%s: err load '%s'\n", __func__, infile);
return foo;
}
}
else {
fprintf(stderr, "%s is creating the picz\n", __func__);
fimg_create(&fimg, 512, 512, FIMG_TYPE_RGB);
fimg_draw_something(&fimg);
}
foo = fimg_save_as_pnm(&fimg, "source.pnm", 0);
/*
* running multiple filters so you can
* watch the up-left shift :)
*/
for (idx=0; idx<5; idx++) {
foo = fimg_lissage_2x2(&fimg);
sprintf(buffer, "filter%03d.png", idx);
foo = fimg_save_as_png(&fimg, buffer, 0);
if (verbosity) {
fprintf(stderr, "%s %d\n", buffer, foo);
}
}
fimg_destroy(&fimg);
return 0;
}
/* --------------------------------------------------------------------- */
int essai_geometrie(char *infile, int notused)
{
FloatImg fimg, result;
int foo;
if (NULL != infile) {
fprintf(stderr, "loading %s\n", infile);
foo = fimg_create_from_dump(infile, &fimg);
if (foo) {
fprintf(stderr, "%s: err load '%s'\n", __func__, infile);
return foo;
}
}
else {
fimg_create(&fimg, 512, 512, FIMG_TYPE_RGB);
fimg_draw_something(&fimg);
}
// foo = fimg_save_as_pnm(&fimg, "source.pnm", 0);
memset(&result, 0, sizeof(FloatImg));
foo = fimg_halfsize_0(&fimg, &result, 0);
fprintf(stderr, "retour halfsize 0 -> %d\n", foo);
if (foo) {
return -2;
}
if (verbosity) fimg_describe(&result, "result after halfsize 0");
foo = fimg_save_as_pnm(&result, "halfsize0.pnm", 0);
fimg_destroy(&result);
foo = fimg_halfsize_1(&fimg, &result, 0);
fprintf(stderr, "retour halfsize 1 -> %d\n", foo);
if (foo) {
return -2;
}
if (verbosity) fimg_describe(&result, "result after halfsize 1");
foo = fimg_save_as_pnm(&result, "halfsize1.pnm", 0);
/* hop, un peu de nettoyage */
fimg_destroy(&result); fimg_destroy(&fimg);
return 0;
}
/* --------------------------------------------------------------------- */
int essai_sfx0(char *infile)
{
FloatImg fimg;
int foo;
if (NULL != infile) {
fprintf(stderr, "loading %s\n", infile);
foo = fimg_create_from_dump(infile, &fimg);
if (foo) {
fprintf(stderr, "%s: err load '%s'\n", __func__, infile);
return foo;
}
}
else {
fimg_create(&fimg, 512, 512, FIMG_TYPE_RGB);
fimg_draw_something(&fimg);
}
foo = fimg_save_as_pnm(&fimg, "something.pnm", 0);
if (foo) {
fprintf(stderr, "%s: err save %d\n", __func__, foo);
return -6;
}
foo = fimg_killcolors_a(&fimg, 0.0);
foo = fimg_save_as_pnm(&fimg, "colorskilled-a.pnm", 0);
if (foo) {
fprintf(stderr, "%s: err save %d\n", __func__, foo);
return -6;
}
foo = fimg_killcolors_b(&fimg, 0.0);
foo = fimg_save_as_pnm(&fimg, "colorskilled-b.pnm", 0);
if (foo) {
fprintf(stderr, "%s: err save %d\n", __func__, foo);
return -6;
}
fimg_destroy(&fimg);
return 0;
}
/* --------------------------------------------------------------------- */
int essai_parse_double(void)
{
int foo;
double dval;
char *str;
str = "12.34"; dval = 0.0;
foo = parse_double(str, &dval);
printf("%-10s -> %3d %g\n", str, foo, dval);
str = "12e4"; dval = 0.0;
foo = parse_double(str, &dval);
printf("%-10s -> %3d %g\n", str, foo, dval);
str = "5s"; dval = 0.0;
foo = parse_double(str, &dval);
printf("%-10s -> %3d %g\n", str, foo, dval);
str = "PORN"; dval = 0.0;
foo = parse_double(str, &dval);
printf("%-10s -> %3d %g\n", str, foo, dval);
return 0;
}
/* --------------------------------------------------------------------- */
int essai_detect_type(void)
{
int foo;
char *fname;
foo = format_from_extension(fname="foo.fimg");
printf("%-10s %3d\n", fname, foo);
foo = format_from_extension(fname="foo.pnm");
printf("%-10s %3d\n", fname, foo);
foo = format_from_extension(fname="foo.png");
printf("%-10s %3d\n", fname, foo);
foo = format_from_extension(fname="foo.tiff");
printf("%-10s %3d\n", fname, foo);
foo = format_from_extension(fname="foo.fits");
printf("%-10s %3d\n", fname, foo);
foo = format_from_extension(fname="foo.xyzzy");
printf("%-10s %3d\n", fname, foo);
return 0;
}
/* --------------------------------------------------------------------- */
int essai_mire(char *outname, int notused)
{
FloatImg fimg;
int re, foo;
fimg_create(&fimg, 1280, 960, FIMG_TYPE_RGB);
re = fimg_test_pattern(&fimg, 9, 1.0);
if (re) {
fprintf(stderr, "fimg_test_pattern -> %d\n", re);
}
foo = fimg_export_picture(&fimg, "mire.pnm", 0);
fprintf(stderr, "in %s, export give a %d value\n", __func__, foo);
return 0;
}
/* --------------------------------------------------------------------- */
int essai_rampes(void)
{
FloatImg fimg;
int foo;
fimg_create(&fimg, 640, 480, FIMG_TYPE_RGB);
#define V ((double)3.141592654)
foo = fimg_hdeg_a(&fimg, V);
fprintf(stderr, "make h deg -> %d\n", foo);
foo = fimg_save_as_pnm(&fimg, "hdeg.pnm", 0);
fprintf(stderr, "%s: save as pnm -> %d\n", __func__, foo);
foo = fimg_vdeg_a(&fimg, V);
fprintf(stderr, "make h deg -> %d\n", foo);
foo = fimg_save_as_pnm(&fimg, "vdeg_a.pnm", 0);
fprintf(stderr, "%s: save as pnm -> %d\n", __func__, foo);
foo = fimg_vdeg_a(&fimg, -V);
fprintf(stderr, "make h deg -> %d\n", foo);
foo = fimg_save_as_pnm(&fimg, "vdeg_b.pnm", 0);
fprintf(stderr, "%s: save as pnm -> %d\n", __func__, foo);
#undef V
return 0;
}
/* --------------------------------------------------------------------- */
int essai_lecture_png(char *fname, char *outfile, int notused)
{
FloatImg fimg;
int foo;
fprintf(stderr, ">>> %s ( '%s' %d )\n", __func__, fname, notused);
memset(&fimg, 0, sizeof(FloatImg));
foo = fimg_create_from_png(fname, &fimg);
if (foo) {
fprintf(stderr, "%s: createfrom -> %d\n", __func__, foo);
return foo;
}
fimg_describe(&fimg, "created from png");
foo = fimg_export_picture(&fimg, outfile, 0);
if (foo) {
fprintf(stderr, "%s : err %d saving result to %s\n", __func__,
foo, outfile);
return foo;
}
return 0;
}
/* --------------------------------------------------------------------- */
int essai_ecriture_png(char *fname)
{
FloatImg fimg;
int foo;
fimg_create(&fimg, 800, 600, FIMG_TYPE_RGB);
fimg_draw_something(&fimg);
if (verbosity) {
foo = fimg_save_as_pnm(&fimg, "quux.pnm", 0);
fprintf(stderr, "%s: saved as pnm -> %d\n", __func__, foo);
}
foo = fimg_save_as_png(&fimg, fname, 0);
fprintf(stderr, "save as png -> %d\n", foo);
fimg_destroy(&fimg);
return 0;
}
/* --------------------------------------------------------------------- */
int fimg_essai_hsv(char *fname); /* hsv.c */
int essai_histogramme(char *fname, int k)
{
FloatImg fimg;
int foo;
fprintf(stderr, ">>> %s ( '%s' %d )\n", __func__, fname, k);
foo = fimg_create_from_dump(fname, &fimg);
if (foo) {
fprintf(stderr, "%s: err load '%s'\n", __func__, fname);
return foo;
}
foo = fimg_essai_histo(&fimg, "out.png", k);
if (foo) {
fprintf(stderr, "essai_histo -> error %d\n", foo);
return foo;
}
fimg_destroy(&fimg);
fprintf(stderr, "\\o/ end of %s\n", __func__);
return 0;
}
/* --------------------------------------------------------------------- */
/* --------------------------------------------------------------------- */

32
src/funcs/tests.h Normal file
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@@ -0,0 +1,32 @@
/*
* tests des fonctions diverses - prototypes
see also: t.c & tests.c
*/
int essai_plasma(char *infile, char *outfile, int ikoef, float fkoef);
int essai_miroir(char *inf, char *outf, int flags);
int essai_displacement(char *infile, char *outfile);
int essai_qsort_rgb(char *infile, char *outfile);
int essai_equalize(char *infile);
int essai_ecriture_fits(char *outname);
int essai_rotate(char *infile);
int essai_filtrage_2x2(char *infile);
int essai_filtrage_3x3(char *infile);
int essai_sfx0(char *infile);
int essai_mire(char *infile, int wtf);
int essai_ecriture_png(char *infile);
int essai_ecriture_tiff(char *infile);
int fimg_essai_hsv(char *infile);
int essai_classif(char *infile, char *outfile, float fvalue);
int essai_contour_2x2(char *filename, char *outfile);
int essai_geometrie(char *infile, int notused);
int essai_detect_type(void);
int fimg_essai_histo(FloatImg *src, char *outpic, int k); /* histogram.c */
int essai_histogramme(char *fname, int k);
int essai_lecture_png(char *fname, char *outfile, int notused);
int essai_highlights(char *inf, char *outf, int ikoef, float fkoef);
int essai_openexr(char *inf, char *outf, int flags);

28
src/funcs/tpnm.c Normal file
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@@ -0,0 +1,28 @@
/*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pam.h>
#include "../floatimg.h"
int fimg_pnm_infos(char *);
/* --------------------------------------------------------------------- */
int main(int argc, char *argv[])
{
int foo;
char *infile = "foo.pnm";
pnm_init(&argc, argv);
if (2 == argc) infile = argv[1];
foo = fimg_pnm_infos(infile);
fprintf(stderr, "got %d\n", foo);
return 0;
}
/* --------------------------------------------------------------------- */

140
src/funcs/utils.c Normal file
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@@ -0,0 +1,140 @@
/*
* FloatImg from tTh - 2021
*/
#include <stdio.h>
#include <string.h>
#include "../floatimg.h"
extern int verbosity; /* must be declared around main() */
/* --------------------------------------------------------------------- */
void fimg_print_minmax(float minmax[6], char *titre)
{
fprintf(stderr, "\t\tminmax %s\n", titre);
fprintf(stderr, "red\t\t%10f %10f\n", minmax[0], minmax[1]);
fprintf(stderr, "green\t\t%10f %10f\n", minmax[2], minmax[3]);
fprintf(stderr, "blue\t\t%10f %10f\n", minmax[4], minmax[5]);
}
/* --------------------------------------------------------------------- */
int parse_WxH(char *str, int *pw, int *ph)
{
// char *ptr;
int foo, w, h;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( '%s' %p %p )\n", __func__,
str, pw, ph);
#endif
foo = sscanf(str, "%dx%d", &w, &h);
if (2 != foo) {
fprintf(stderr, "%s : arg '%s' is invalid\n", __func__, str);
return foo;
}
*pw = w; *ph = h;
return 2;
}
/* --------------------------------------------------------------------- */
int parse_double(char *str, double *dptr)
{
double value;
int foo;
foo = sscanf(str, "%lf", &value);
if (1 == foo) {
*dptr = value;
return 1;
}
return -1;
}
/* --------------------------------------------------------------------- */
int file_type_from_name(char *name)
{
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( '%s' )\n", __func__, name);
#endif
if (!strcasecmp(name, "pnm" )) return FILE_TYPE_PNM;
if (!strcasecmp(name, "fimg")) return FILE_TYPE_FIMG;
if (!strcasecmp(name, "tga" )) return FILE_TYPE_TGA;
if (!strcasecmp(name, "png" )) return FILE_TYPE_PNG;
if (!strcasecmp(name, "tiff")) return FILE_TYPE_TIFF;
if (!strcasecmp(name, "tif" )) return FILE_TYPE_TIFF;
if (!strcasecmp(name, "fits")) return FILE_TYPE_FITS;
if (!strcasecmp(name, "exr")) return FILE_TYPE_EXR;
return -1;
}
/* --------------------------------------------------------------------- */
int print_rectangle(char *str, FimgArea51 *rect)
{
printf("rect @ %p '%s':\n\t %dx%d at %d,%d\n", rect, str,
rect->w, rect->h, rect->x, rect->y);
return 0;
}
/* ---------------------------------------------- ~~~~~~~~~~~~~~~~ */
/*
* /!\ return 4 on success
*/
int parse_rectangle(char *str, FimgArea51 *r, int notused)
{
int x, y, w, h, foo;
if (verbosity)
fprintf(stderr, "parsing %s\n", str);
foo = sscanf(str, "%d,%d,%d,%d", &w, &h, &x, &y);
if (4 == foo) {
r->x = x, r->y = y, r->w = w, r->h = h;
return 4;
}
return -1;
}
/* --------------------------------------------------------------------- */
int format_from_extension(char *fname)
{
char *cptr;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( '%s' )\n", __func__, fname);
#endif
cptr = rindex(fname, '.');
if (NULL==cptr) {
fprintf(stderr, "No dot in %s\n", fname);
return -1;
}
#if DEBUG_LEVEL
fprintf(stderr, "\t[%s] --> [%s]\n", fname, cptr);
#endif
return file_type_from_name(cptr+1);
}
/* --------------------------------------------------------------------- */
char * extension_from_format(int fmt)
{
switch (fmt) {
case FILE_TYPE_FIMG: return ".fimg"; break;
case FILE_TYPE_PNM: return ".pnm"; break;
case FILE_TYPE_PNG: return ".png"; break;
case FILE_TYPE_TIFF: return ".tiff"; break;
case FILE_TYPE_FITS: return ".fits"; break;
case FILE_TYPE_TGA: return ".tga"; break;
default:
fprintf(stderr, "%s: bad %d fmt type\n", __func__, fmt);
return NULL;
}
return "???";
}
/* --------------------------------------------------------------------- */

43
src/funcs/vroum.sh Executable file
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@@ -0,0 +1,43 @@
#!/bin/bash
src=/dev/shm/foo.fimg
out=out.fimg
device=/dev/video2
maxi=59
W="320"
H="240"
grabopt=" -s ${W}x${H} -vv -u -d $device -p 0 -n 30
0 -c none "
mkdir /tmp/V
rm /tmp/V/*
G=$(printf "%dx%d+0+0" $W $H)
for foo in $(seq 0 $maxi)
do
echo ; echo
grabvidseq -$grabopt -o $src
fval=$(echo "$foo / $maxi * 13.56636" | bc -l)
echo ; echo $foo ' => ' $fval
./t -vv -k $fval -o $out plasma $src
# fimgstats $out
dst=$(printf "/tmp/V/%03d.png" $foo)
echo $dst
montage $src $out -tile 1x2 -geometry $G $dst
sleep 55
done
convert -delay 10 /tmp/V/*.png foo.gif
rm /tmp/V/*