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Tonton Th 2019-03-03 16:22:55 +01:00
commit 5a72327882
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12
.gitignore vendored Normal file
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lib/*.o
funcs/*.o
*.a
tools/fimg2png
tools/fimg2pnm
tools/fimgstats
tools/mkfimg
tools/png2fimg
tools/addtga2fimg

33
Makefile Normal file
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# Before running make, you must have
# a look to the 'build.sh' script !
COPT = -Wall -fpic -g -pg -DDEBUG_LEVEL=0
LDOPT = libfloatimg.a -pg -lm
all: essai
#---------------------------------------------------------------
exemple: exemple.c libfloatimg.a floatimg.h Makefile
gcc $(COPT) $< $(LDOPT) -o $@
essai: essai.c libfloatimg.a floatimg.h Makefile
gcc $(COPT) $< $(LDOPT) -lpnglite -o $@
#---------------------------------------------------------------
TOTAR = *.[ch] Makefile *.sh *.txt doc/*.tex \
funcs/*.[ch] funcs/Makefile \
tools/*.[ch] tools/Makefile \
lib/*.[ch] lib/Makefile
lines: $(TOTAR)
@wc $(TOTAR) | sort -n
tarball: $(TOTAR)
date > tarball
ls $(TOTAR) | sed 's/^/Fimg\//' > MANIFEST
( cd .. ; tar zcvf floatimg.tar.gz `cat Fimg/MANIFEST` )
#---------------------------------------------------------------

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build.sh Executable file
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#!/bin/bash
cd lib
echo EEEEEEEEEE we are in $PWD
make
error=$?
if [ 0 -ne $error ]; then
printf "in %s err %d in %s\n" $PWD $error $0
exit $error
fi
cd ..
cd funcs
echo EEEEEEEEEE we are in $PWD
make
error=$?
if [ 0 -ne $error ]; then
printf "in %s err %d in %s\n" $PWD $error $0
exit $error
fi
cd ..
cd tools
echo
make fimg2pnm addtga2fimg mkfimg png2fimg fimgstats fimg2png
error=$?
cd ..
echo

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essai.c Normal file
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/*
testing some random funcs.
*/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include "floatimg.h"
/* --------------------------------------------------------------------- */
int add(FloatImg *a, FloatImg *b)
{
int x, y;
int offset;
double tb;
fimg_timer_set(0);
for (x=0; x<a->width; x++) {
for (y=0; y<a->height; y++) {
offset = x + (y * a->width);
a->R[offset] += b->R[offset];
a->G[offset] += b->G[offset];
a->B[offset] += b->B[offset];
}
}
tb = fimg_timer_get(0);
fprintf(stderr, "%s = %f seconds\n", __func__, tb);
return 0;
}
/* --------------------------------------------------------------------- */
void fait_un_dessin(char *fname)
{
FloatImg dessin;
double tb;
puts("");
fimg_timer_set(0);
fimg_create(&dessin, 3200, 2400, 3);
fimg_draw_something(&dessin);
fimg_dump_to_file(&dessin, "dessin.fimg", 0);
fimg_destroy(&dessin);
tb = fimg_timer_get(0);
fprintf(stderr, "%s = %f seconds\n", __func__, tb);
puts("");
}
/* --------------------------------------------------------------------- */
int main(int argc, char *argv[])
{
FloatImg fimgA, fimgB;
int foo;
double tb;
fimg_print_version(0);
#define W 2000
#define H 1700
fait_un_dessin("dessin.fimg");
fimg_create(&fimgA, W, H, 3);
fimg_create(&fimgB, W, H, 3);
fimg_draw_something(&fimgA);
fimg_timer_set(0);
fimg_drand48(&fimgB, 100.0);
tb = fimg_timer_get(0);
fprintf(stderr, "%s = %f seconds\n", __func__, tb);
foo = fimg_save_as_pnm(&fimgB, "drand48.pnm", 0);
/*
fimg_printhead(&fimgA); fimg_printhead(&fimgB);
fimg_describe(&fimgA, "image A");
*/
add(&fimgA, &fimgB);
foo = fimg_save_as_pnm(&fimgA, "t.pnm", 0);
fprintf(stderr, "save as pnm -> %d\n", foo);
foo = fimg_dump_to_file(&fimgA, "t.fimg", 0);
fprintf(stderr, "save as fimg -> %d\n", foo);
fimg_destroy(&fimgA);
fimg_destroy(&fimgB);
return 0;
}
/* --------------------------------------------------------------------- */

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/*
* floatimg.h
*/
#define FIMG_VERSION 58
/*
* in memory descriptor
*/
typedef struct {
int width;
int height;
int type;
float fval;
int count;
float *R, *G, *B, *A;
int reserved;
} FloatImg;
/*
* fimg file header
*/
typedef struct {
// char magic[8];
int w, h, t;
} FimgFhead;
/*
* core module
*/
int fimg_create(FloatImg *fimg, int w, int h, int t);
int fimg_destroy(FloatImg *fimg);
int fimg_print_version(int k);
void fimg_printhead(FloatImg *h);
int fimg_describe(FloatImg *head, char *txt);
int fimg_fileinfo(char *fname, int *datas);
int fimg_plot_rgb (FloatImg *head, int x, int y, float r, float g, float b);
int fimg_clear(FloatImg *fimg);
int fimg_add_rgb(FloatImg *head, int x, int y, float r, float g, float b);
/* PNM files module */
int fimg_save_as_pnm(FloatImg *head, char *fname, int notused);
double fimg_timer_set(int whot);
double fimg_timer_get(int whot);
/* FIMG files module */
int fimg_fileinfos(char *fname, int *datas);
int fimg_dump_to_file(FloatImg *head, char *fname, int notused);
int fimg_create_from_dump(char *fname, FloatImg *head);
/* mathematics oprations */
float fimg_get_maxvalue(FloatImg *head);
int fimg_meanvalues(FloatImg *head, float means[4]);
int fimg_to_gray(FloatImg *head);
void fimg_add_cste(FloatImg *fi, float value);
void fimg_drand48(FloatImg *fi, float kmul);
/* variuos funcs modules */
int fimg_load_from_png(char *filename, FloatImg *fimg);
int fimg_create_from_png(char *filename, FloatImg *fimg);
int fimg_save_as_png(FloatImg *src, char *outname, int flags);
int fimg_draw_something(FloatImg *fimg);

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#---------------------------------------------------------------
COPT = -Wall -fpic -g -no-pie -pg -DDEBUG_LEVEL=0
DEPS = ../floatimg.h Makefile
OBJS = fimg-png.o fimg-tiff.o misc-plots.o filtrage.o
#---------------------------------------------------------------
../libfloatimg.a: $(OBJS)
$(AR) r $@ $?
fimg-png.o: fimg-png.c $(DEPS)
gcc $(COPT) -c $<
fimg-tiff.o: fimg-tiff.c $(DEPS)
gcc $(COPT) -c $<
misc-plots.o: misc-plots.c $(DEPS)
gcc $(COPT) -c $<
filtrage.o: filtrage.c $(DEPS)
gcc $(COPT) -c $<

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <float.h>
#include "floatimg.h"
/* -------------------------------------------------------------------- */
int fimg_lissage_2x2(FloatImg *img)
{
return -1;
}
/* -------------------------------------------------------------------- */

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/*
* Lecture des images PNG
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pnglite.h>
#include "../floatimg.h"
/* --------------------------------------------------------------------- */
/*
* warning : this func has been tested only with
* RGB (3x8bits) PNG files
*/
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
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 open_file '%s' -> %d\n", __func__, filename, foo);
return foo;
}
#if DEBUG_LEVEL > 1
fprintf(stderr, "%s opened\n", filename);
#endif
datasize = png.width * png.height * png.bpp;
if ( 3 != png.bpp ) {
fprintf(stderr, "format %d of '%s' not supported\n",
png.color_type, filename);
return -21;
}
#if DEBUG_LEVEL
printf("\t%s is %d x %d\n", filename, png.width, png.height);
printf("\tdatalen %d\n", png.png_datalen);
printf("\tcolor type %d\n", png.color_type);
printf("\tbyte/pixel %d\n", png.bpp);
printf("\tdatasize %d\n", datasize);
puts(""); png_print_info(&png); puts("");
#endif
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);
}
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);
// 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;
}
/* --------------------------------------------------------------------- */
int fimg_save_as_png(FloatImg *src, char *outname, int flags)
{
png_t png;
return -1;
}
/* --------------------------------------------------------------------- */

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/*
* FLOATIMG
* import/export to/from TIFF files
*/
#include <stdio.h>
#include "../floatimg.h"
/* --------------------------------------------------------------------- */
/* --------------------------------------------------------------------- */
/* --------------------------------------------------------------------- */

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/*
testing some random funcs.
*/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "../floatimg.h"
/* --------------------------------------------------------------------- */
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*(cos(fy*K)+1.2),
M*(cos(fx*fy)+1.2));
}
}
return 0;
}
/* --------------------------------------------------------------------- */
int fimg_multirandom(FloatImg *fimg)
{
int foo, x, y;
#define RI ( (rand()/7) + (rand()/9) )
#define RD ( (drand48()/7) + (drand48()/7) )
for (foo=0; foo<100000000; foo++)
{
x = RI % fimg->width;
y = RI % fimg->height;
fimg_add_rgb(fimg, x, y, RD, RD, RD);
}
return 0;
}
/* --------------------------------------------------------------------- */

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#!/bin/bash
cp libfloatimg.a /usr/local/lib
cp floatimg.h /usr/local/include
cp tools/mkfimg tools/fimg2pnm tools/addtga2fimg \
tools/png2fimg tools/fimgstats \
/usr/local/bin

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#
# building the base library
#
COPT = -Wall -fpic -g -pg -no-pie -DDEBUG_LEVEL=0
OBJS = fimg-core.o fimg-pnm.o fimg-file.o fimg-math.o \
fimg-timers.o
DEPS = Makefile ../floatimg.h
# modify it 'as you like'
AR=ar
all: $(OBJS) ../libfloatimg.a
# --------------------------------------------
../libfloatimg.a: $(OBJS)
$(AR) r $@ $?
fimg-core.o: fimg-core.c $(DEPS)
gcc $(COPT) -c $<
fimg-pnm.o: fimg-pnm.c $(DEPS)
gcc $(COPT) -c $<
fimg-file.o: fimg-file.c $(DEPS)
gcc $(COPT) -c $<
fimg-math.o: fimg-math.c $(DEPS)
gcc $(COPT) -c $<
fimg-timers.o: fimg-timers.c $(DEPS)
gcc $(COPT) -c $<
# --------------------------------------------

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/*
* fimg-core.c
*
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "string.h"
#include "../floatimg.h"
extern int verbosity; /* must be declared around main() */
/* ---------------------------------------------------------------- */
static int fimg_type_is_valid(int t)
{
switch (t) {
case 1: case 3: case 4: return 1;
}
return 0;
}
/* --------------------------------------------------------------------- */
int fimg_print_version(int k)
{
fprintf(stderr, "*** FloatImg library, alpha v%d (%s, %s)\n",
FIMG_VERSION, __DATE__, __TIME__);
if (51 == k) {
puts("+--------------------+");
puts("| Pastis is coming. |");
puts("+--------------------+");
}
return 0;
}
/* --------------------------------------------------------------------- */
void fimg_printhead(FloatImg *h)
{
printf("%5d %5d %2d %p %p %p %p\n", h->width, h->height, h->type,
h->R, h->G, h->B, h->A);
}
/* --------------------------------------------------------------------- */
int fimg_describe(FloatImg *head, char *txt)
{
printf("----- '%s' at %p -----\n", txt, head);
if( ! fimg_type_is_valid(head->type) ) {
fprintf(stderr, "*** %s *** type %d invalid *** %s ***\n",
__func__, head->type, txt);
return -1;
}
printf(" size %d x %d x %d\n",
head->width, head->height, head->type);
printf(" fval/count %f %d\n", head->fval, head->count);
printf(" pixels@ %p %p %p %p\n",
head->R, head->G, head->B, head->A);
return 0;
}
/* ---------------------------------------------------------------- */
int fimg_create(FloatImg *fimg, int w, int h, int t)
{
int surface, size;
float *fptr;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %-25s ( %p %d %d %d )\n", __func__, fimg, w, h, t);
#endif
if ( ! fimg_type_is_valid(t) ) {
return -2;
}
memset(fimg, 0, sizeof(FloatImg));
surface = w * h;
size = surface * t * sizeof(float);
#if DEBUG_LEVEL > 1
fprintf(stderr, "surface is %d pixels, need %d bytes\n", surface, size);
#endif
fptr = (float *)malloc(size);
if (NULL==fptr) {
fprintf(stderr, "%s : nom mem, exiting.\n", __func__);
exit(1);
}
#if DEBUG_LEVEL > 1
fprintf(stderr, " got %d bytes at %p\n", size, fptr);
#endif
fimg->width = w; fimg->height = h;
fimg->type = t;
fimg->R = fptr;
if ( (t==3) || (t==4) ) {
fimg->G = fptr + surface;
fimg->B = fptr + surface + surface;
}
if ( t==4 ) fimg->A = fptr + (3 * surface);
return 0;
}
/* --------------------------------------------------------------------- */
int fimg_destroy(FloatImg *fimg)
{
#if DEBUG_LEVEL
fprintf(stderr, ">>> %-25s ( %p )\n", __func__, fimg);
#endif
if ( ! fimg_type_is_valid(fimg->type) ) {
return -2;
}
free(fimg->R);
memset(fimg, 0, sizeof(FloatImg));
return 0;
}
/* --------------------------------------------------------------------- */
int fimg_clear(FloatImg *fimg)
{
int size;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %-25s ( %p )\n", __func__, fimg);
#endif
if ( ! fimg_type_is_valid(fimg->type) ) {
fprintf(stderr, "invalid type %d in %s\n", fimg->type, __func__);
return -2;
}
size = fimg->width * fimg->height * fimg->type * sizeof(float);
memset(fimg->R, 0, size);
return -1;
}
/* --------------------------------------------------------------------- */
int fimg_plot_rgb (FloatImg *head, int x, int y,
float r, float g, float b)
{
int offset;
if (head->type < 3) {
#if DEBUG_LEVEL > 1
fprintf(stderr, "%s : type %d is bad.\n", __func__, head->type);
#endif
return -1;
}
offset = x + (y * head->width);
#if DEBUG_LEVEL > 1
fprintf(stderr, ">>> %s ( %p %d %d %f )\n", __func__, head, x, y, gray);
fprintf(stderr, " offset %d\n", offset);
#endif
head->R[offset] = r;
head->G[offset] = g;
head->B[offset] = b;
return 0;
}
/* ---------------------------------------------------------------- */
int fimg_add_rgb(FloatImg *head, int x, int y, float r, float g, float b)
{
int offset;
offset = x + (y * head->width);
head->R[offset] += r;
head->G[offset] += g;
head->B[offset] += b;
return 0;
}
/* --------------------------------------------------------------------- */
/* --------------------------------------------------------------------- */

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/*
* fimg-file.c
*
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "string.h"
#include "../floatimg.h"
extern int verbosity; /* must be declared around main() */
/* ---------------------------------------------------------------- */
int fimg_fileinfos(char *fname, int *datas)
{
FILE *fp;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %-25s ( '%s' %p )\n", __func__, fname, datas);
#endif
fp = fopen(fname, "r");
if (NULL==fp) {
perror(fname);
return -1;
}
if (3 != fread(datas, sizeof(int), 3, fp)) {
fprintf(stderr, "%s: %s short read\n", __func__, fname);
fclose(fp);
return -2;
}
fclose(fp);
return 0;
}
/* ---------------------------------------------------------------- */
int fimg_dump_to_file(FloatImg *head, char *fname, int notused)
{
FILE *fp;
int foo, nbre, dims[3];
#if DEBUG_LEVEL
fprintf(stderr, ">>> %-25s ( %p '%s' %d )\n", __func__, head,
fname, notused);
#endif
if (3 != head->type) {
fprintf(stderr, "%s : bat type %d\n", __func__, head->type);
return -8;
}
fp = fopen(fname, "w");
if (NULL==fp) {
perror(fname);
return -1;
}
dims[0] = head->width; dims[1] = head->height;
dims[2] = head->type;
foo = fwrite(dims, sizeof(int), 3, fp);
if (3 != foo) {
perror(fname);
fclose(fp);
return -2;
}
nbre = head->width*head->height*3;
#if DEBUG_LEVEL
fprintf(stderr, " %s : data at %p\n", __func__, head->R);
#endif
foo = fwrite(head->R, sizeof(float), nbre, fp);
if (nbre!=foo) {
perror(fname);
fclose(fp);
return -3;
}
fclose(fp);
return 0;
}
/* ---------------------------------------------------------------- */
int fimg_create_from_dump(char *fname, FloatImg *head)
{
FILE *fp;
int foo, dims[3];
#if DEBUG_LEVEL
fprintf(stderr, ">>> %-25s ( '%s' %p )\n", __func__, fname, head);
#endif
fp = fopen(fname, "r");
if (NULL==fp) {
perror(fname);
exit(1);
}
foo = fread(dims, sizeof(int), 3, fp);
if (3 != foo) {
fprintf(stderr, "%s : short read\n", fname);
fclose(fp);
return -1;
}
#if DEBUG_LEVEL
fprintf(stderr, "%s : got [ %d %d %d ] from '%s'\n", __func__,
dims[0], dims[1], dims[2], fname);
#endif
foo = fimg_create(head, dims[0], dims[1], dims[2]);
if (foo) {
fprintf(stderr, "%s : create -> %d\n", __func__, foo);
return foo;
}
foo = fread(head->R, sizeof(float), dims[0]*dims[1]*3, fp);
fclose(fp);
return 0;
}

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/*
* fimg-core.c
*
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "string.h"
#include "../floatimg.h"
extern int verbosity; /* must be declared around main() */
/* ---------------------------------------------------------------- */
float fimg_get_maxvalue(FloatImg *head)
{
float maxval;
int foo;
maxval = 0.0; /* no negative values allowed */
for (foo=0; foo<(head->width*head->height); foo++) {
if (head->R[foo] > maxval) maxval = head->R[foo];
if (head->G[foo] > maxval) maxval = head->G[foo];
if (head->B[foo] > maxval) maxval = head->B[foo];
}
return maxval;
}
/* ---------------------------------------------------------------- */
int fimg_meanvalues(FloatImg *head, float means[4])
{
int idx, surface;
surface = head->width * head->height;
if (surface < 1) return -1;
memset(means, 0, 4*sizeof(float));
for (idx=0; idx<surface; idx++) {
means[0] += head->R[idx];
if (head->type > 2) {
means[1] += head->G[idx];
means[2] += head->B[idx];
}
}
for (idx=0; idx<4; idx++) means[idx] /= (float)surface;
return 0;
}
/* ---------------------------------------------------------------- */
int fimg_to_gray(FloatImg *head)
{
float add;
int foo;
for (foo=0; foo<(head->width*head->height); foo++) {
add = head->R[foo];
add += head->G[foo];
add += head->B[foo];
head->R[foo] = head->G[foo] = head->B[foo] = add;
}
return -1;
}
/* ---------------------------------------------------------------- */
void fimg_add_cste(FloatImg *fi, float value)
{
int nbre, idx;
nbre = fi->width * fi->height * fi->type;
#if DEBUG_LEVEL
fprintf(stderr, "%s, nbre is %d\n", __func__, nbre);
#endif
for (idx=0; idx<nbre; nbre++) {
fi->R[idx] += value;
}
}
/* ---------------------------------------------------------------- */
/* Warning: this function is _very_ slow */
void fimg_drand48(FloatImg *fi, float kmul)
{
int nbre, idx;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %g )\n", __func__, fi, kmul);
#endif
nbre = fi->width * fi->height * fi->type;
for (idx=0; idx<nbre; idx++) {
fi->R[idx] = drand48() * kmul;
}
}
/* ---------------------------------------------------------------- */

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/*
* fimg-pnm.c
*
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "string.h"
#include "../floatimg.h"
extern int verbosity; /* must be declared around main() */
/* ---------------------------------------------------------------- */
/* ---------------------------------------------------------------- */
int fimg_save_as_pnm(FloatImg *head, char *fname, int notused)
{
FILE *fp;
float maximum, fk;
int idx, sz, Rv, Gv, Bv, foo;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %-25s ( %p '%s' %d )\n", __func__, head,
fname, notused);
#endif
if (head->type != 3) {
#if DEBUG_LEVEL
fprintf(stderr, "%s : type %d is bad.\n", __func__, head->type);
#endif
return -1;
}
if (NULL==(fp=fopen(fname, "w"))) {
perror(fname);
return -1;
}
fprintf(fp, "P3\n%d %d\n", head->width, head->height);
maximum = fimg_get_maxvalue(head);
fprintf(fp, "# maxval %15f\n", maximum);
fk = maximum / 65536.0;
fprintf(fp, "# divisor %15f\n", fk);
fprintf(fp, "65535\n");
sz = head->width*head->height;
foo = 0;
for (idx=0; idx<sz; idx++) {
if (fk > 0) {
Rv = (int)(head->R[idx] / fk);
Gv = (int)(head->G[idx] / fk);
Bv = (int)(head->B[idx] / fk);
}
else {
Rv = Gv = Bv = 0;
}
foo += fprintf(fp, "%d %d %d", Rv, Gv, Bv);
if (foo > 60) {
fputs("\n", fp); foo = 0;
}
else {
fputs(" ", fp); foo++;
}
}
fputs("\n", fp);
fclose(fp);
return 0;
}
/* ---------------------------------------------------------------- */

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/*
* timers.c
*/
#include <stdio.h>
#include <sys/time.h>
extern int verbosity;
/* ----------------------------------------------------------------- */
static double dtime(void)
{
struct timeval t;
double d;
(void)gettimeofday(&t, NULL);
d = (double)t.tv_sec + (double)t.tv_usec / 1e6;
return d;
}
/* ----------------------------------------------------------------- */
static double memory_time;
double fimg_timer_set(int whot)
{
double current;
current = dtime();
#if DEBUG_LEVEL
fprintf(stderr, "%s ( %d ) -> current %f\n", __func__, whot, current);
#endif
memory_time = current;
return memory_time;
}
/* ----------------------------------------------------------------- */
double fimg_timer_get(int whot)
{
double current;
current = dtime();
return current - memory_time;
}
/* ----------------------------------------------------------------- */

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#
# makefile for floatimg tools
# use with caution
#
COPT = -Wall -fpic -g -DDEBUG_LEVEL=1
DEPS = ../floatimg.h ../libfloatimg.a Makefile
# ----------
fimgstats: fimgstats.c $(DEPS)
gcc -g $< ../libfloatimg.a -o $@
mkfimg: mkfimg.c $(DEPS)
gcc -g $< ../libfloatimg.a -o $@
fimg2pnm: fimg2pnm.c $(DEPS)
gcc -g $< ../libfloatimg.a -o $@
fimg2png: fimg2png.c $(DEPS)
gcc -g $< ../libfloatimg.a -o $@
addtga2fimg: addtga2fimg.c $(DEPS)
gcc -g $< ../libfloatimg.a -limageSO -lm -o $@
# if "undefined reference to crc32" then "use -lz"
png2fimg: png2fimg.c $(DEPS)
gcc -g $< ../libfloatimg.a -lpnglite -o $@

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/*
* ADDTGA
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <tthimage.h>
#include "../floatimg.h"
/* --------------------------------------------------------------------- */
int add_tga_to_fimg(char *srcname, char *dstname, int notused)
{
Image_Desc *src;
FloatImg dst;
int foo, x, y;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( '%s' %s' )\n", __func__, srcname, dstname);
#endif
if (NULL==(src = Image_TGA_alloc_load(srcname))) {
return -2;
}
foo = fimg_create_from_dump(dstname, &dst);
if (foo) fprintf(stderr, "create fimg from '%s' -> %d\n", dstname, foo);
#if DEBUG_LEVEL
fimg_describe(&dst, "created fimg");
#endif
for (y=0; y<src->height; y++) {
for (x=0; x<src->width; x++) {
foo = fimg_add_rgb(&dst, x, y,
(float)Image_R_pixel(src, x, y),
(float)Image_G_pixel(src, x, y),
(float)Image_B_pixel(src, x, y));
}
}
foo = fimg_dump_to_file(&dst, dstname, 0);
if (foo) { fprintf(stderr, "fimg dump -> %d\n", foo); }
return 0;
}
/* --------------------------------------------------------------------- */
int main(int argc, char *argv[])
{
int foo;
int tgaW, tgaH;
int infos[3];
if (3 != argc) {
fimg_print_version(1);
fprintf(stderr, "usage:\n\t%s img.tga cumul.fimg\n", argv[0]);
exit(1);
}
/* first, check the TGA file dimensions */
// Image_print_version(0);
foo = Image_TGA_get_dims(argv[1], &tgaW, &tgaH);
if (foo) {
fprintf(stderr, "get dims of '%s' -> %d\n", argv[1], foo);
Image_print_error("tga get dims", foo);
exit(1);
}
if ( 0==access(argv[2], R_OK|W_OK) ) { /* fimg is readable */
// fprintf(stderr, "%s exist\n", argv[2]);
}
else {
fprintf(stderr, "*** must create '%s' %dx%d first !!!\n",
argv[2], tgaW, tgaH);
exit(1);
}
foo = fimg_fileinfos(argv[2], infos);
// fprintf(stderr, "get dims of '%s' -> %d\n", argv[2], foo);
if (foo) {
fprintf(stderr, "*** %s is badly broken\n", argv[2]);
exit(2);
}
if ( (tgaW != infos[0]) || (tgaW != infos[0]) ) {
fprintf(stderr, " TGA %5d %5d\n", tgaW, tgaH);
fprintf(stderr, " FIMG %5d %5d\n", infos[0], infos[1]);
fprintf(stderr, " No dimension match.\n");
exit(3);
}
foo = add_tga_to_fimg(argv[1], argv[2], 0);
return 0;
}
/* --------------------------------------------------------------------- */

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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "../floatimg.h"
/* --------------------------------------------------------------------- */
int main(int argc, char *argv[])
{
int foo;
if (3 != argc) {
fimg_print_version(1);
fprintf(stderr, "usage:\n\t%s foo.fimg bar.pnm\n", argv[0]);
exit(1);
}
return 0;
}
/* --------------------------------------------------------------------- */

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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "../floatimg.h"
int verbosity;
/* --------------------------------------------------------------------- */
int convertir_fimg_en_pnm(char *srcname, char *dstname, int notused)
{
int foo, infos[3];
FloatImg fimg;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %25s ( '%s' '%s' )\n", __func__, srcname, dstname);
#endif
foo = fimg_fileinfos(srcname, infos);
if (foo) { fprintf(stderr, "'%s' get dims -> %d\n", srcname, foo); }
if (verbosity) {
fprintf(stderr, "image '%s' is %d x %d\n",
srcname, infos[0], infos[1]);
}
foo = fimg_create_from_dump(srcname, &fimg);
if (foo) {
fprintf(stderr, "create fimg from '%s' -> %d\n", srcname, foo);
return -1;
}
#if DEBUG_LEVEL > 1
print_floatimg(&fimg, "created fimg");
#endif
foo = fimg_save_as_pnm(&fimg, dstname, 0);
if(foo) { fprintf(stderr, "%p to '%s' -> %d\n", &fimg, dstname, foo); }
return 0;
}
/* --------------------------------------------------------------------- */
int main(int argc, char *argv[])
{
int foo;
if (3 != argc) {
fimg_print_version(1);
fprintf(stderr, "usage:\n\t%s foo.fimg bar.pnm\n", argv[0]);
exit(1);
}
if ( 0 != access(argv[1], R_OK|W_OK) ) { /* fimg is NOT readable */
fprintf(stderr, "%s: %s don't exist.\n", argv[0], argv[1]);
exit(2);
}
foo = convertir_fimg_en_pnm(argv[1], argv[2], 0);
if (foo) fprintf(stderr, "conversion -> %d\n", foo);
return 0;
}

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/*
* FIMGSTATS
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "../floatimg.h"
int verbosity; /* global */
int make_csv;
/* --------------------------------------------------------------------- */
int various_numbers(FloatImg *fimg, int k)
{
float moyennes[4];
int foo;
float fvalue;
if (verbosity)
fprintf(stderr, " numbers from %p :\n", fimg);
fimg_printhead(fimg);
fprintf(stderr, "surface %d\n", fimg->width * fimg->height);
fimg_meanvalues(fimg, moyennes);
fprintf(stderr, "mean values:\n");
for (foo=0; foo<4; foo++)
printf(" %c %14.6f\n", "RGBA"[foo], moyennes[foo]);
fvalue = fimg_get_maxvalue(fimg);
printf("max value %f\n", fvalue);
return 0;
}
/* --------------------------------------------------------------------- */
int various_numbers_from_file(char *fname, int k)
{
FloatImg fimg;
int foo;
fprintf(stderr, "----------- numbers from '%s' :\n", fname);
foo = fimg_create_from_dump(fname, &fimg);
if (foo) {
fprintf(stderr, "create fimg from '%s' -> %d\n", fname, foo);
return -2;
}
various_numbers(&fimg, k);
fimg_destroy(&fimg);
return 0;
}
/* --------------------------------------------------------------------- */
static void help(int k)
{
fputs( "usage : fimgstats [options] file.fimg\n"
"\t-c\tmake a machinable csv\n"
"\t-v\tincrease verbosity\n"
, stderr);
}
/* --------------------------------------------------------------------- */
int main(int argc, char *argv[])
{
int foo, opt;
extern char *optarg;
extern int optind, opterr, optopt;
if (argc == 1) {
foo = fimg_print_version(1); help(0);
exit(0);
}
while ((opt = getopt(argc, argv, "cv")) != -1) {
switch(opt) {
case 'c': make_csv++; break;
case 'v': verbosity++; break;
default: help(1); exit(1);
}
}
foo = various_numbers_from_file(argv[optind], 0);
return 0;
}
/* --------------------------------------------------------------------- */

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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "../floatimg.h"
/* --------------------------------------------------------------------- */
int main(int argc, char *argv[])
{
int foo;
int width, height;
char *fname;
FloatImg fimg;
if (4 != argc) {
fimg_print_version(1);
fprintf(stderr, "Usage:\n\t%s quux.fimg width height\n", argv[0]);
exit(1);
}
fname = argv[1];
width = atoi(argv[2]); height = atoi(argv[3]);
fprintf(stderr, "making %s %d x %d\n", fname, width, height);
foo = fimg_create(&fimg, width, height, 3);
if (foo) {
fprintf(stderr, "create floatimg -> %d\n", foo);
exit(1);
}
fimg_describe(&fimg, "just a black flimg");
fimg_clear(&fimg);
foo = fimg_dump_to_file(&fimg, fname, 0);
if (foo) {
fprintf(stderr, "dump floatimg -> %d\n", foo);
exit(1);
}
return 0;
}
/* --------------------------------------------------------------------- */

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/*
* PNG ---> FIMG
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include "../floatimg.h"
/* --------------------------------------------------------------------- */
int main(int argc, char *argv[])
{
FloatImg fimg;
int foo;
if (3 != argc) {
fimg_print_version(1);
fprintf(stderr, "usage:\n\t%s foo.fimg bar.png\n", argv[0]);
exit(1);
}
memset(&fimg, 0, sizeof(FloatImg));
foo = fimg_create_from_png(argv[1], &fimg);
if (foo) {
fprintf(stderr, "%s : err %d, abort.\n", argv[0], foo);
exit(1);
}
fimg_describe(&fimg, "oups");
foo = fimg_save_as_pnm(&fimg, "t.pnm", 0);
fprintf(stderr, "save as pnm -> %d\n", foo);
return 0;
}
/* --------------------------------------------------------------------- */