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new func: fimg_do_stripes(&fimg, 0);

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tTh 2022-09-19 11:58:30 +02:00
parent eedc9197db
commit 56073c0c80
3 changed files with 56 additions and 10 deletions
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3
floatimg.h
View File

@ -20,7 +20,7 @@
* https://git.tetalab.org/tTh/FloatImg * https://git.tetalab.org/tTh/FloatImg
*/ */
#define FIMG_VERSION (201) #define FIMG_VERSION (202)
#define RELEASE_NAME ("noname") #define RELEASE_NAME ("noname")
/* XXX add a test for stdint.h / uint32_t XXX */ /* XXX add a test for stdint.h / uint32_t XXX */
@ -254,6 +254,7 @@ int fimg_displacement_0(FloatImg *psrc, FloatImg *pdst, int flags);
/* module funcs/rampes.c */ /* module funcs/rampes.c */
int fimg_hdeg_a(FloatImg *img, double dcoef); int fimg_hdeg_a(FloatImg *img, double dcoef);
int fimg_vdeg_a(FloatImg *img, double dcoef); int fimg_vdeg_a(FloatImg *img, double dcoef);
int fimg_do_stripes(FloatImg *img, int mode);
/* FIMG native file module */ /* FIMG native file module */
int fimg_fileinfos(char *fname, int *datas); int fimg_fileinfos(char *fname, int *datas);

55
funcs/rampes.c
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@ -5,6 +5,7 @@
#include <stdio.h> #include <stdio.h>
#include <stdint.h> #include <stdint.h>
#include <stdlib.h>
#include <sys/time.h> #include <sys/time.h>
#include "../floatimg.h" #include "../floatimg.h"
@ -23,8 +24,7 @@ if (FIMG_TYPE_RGB != img->type) {
fprintf(stderr, "%s bad type\n", __func__); fprintf(stderr, "%s bad type\n", __func__);
return -6; return -6;
} }
for (x=0; x<img->width; x++) for (x=0; x<img->width; x++) {
{
value = (float)x / (float)img->width; value = (float)x / (float)img->width;
value *= dcoef; value *= dcoef;
for (y=0; y<img->height; y++) { for (y=0; y<img->height; y++) {
@ -51,11 +51,10 @@ if (FIMG_TYPE_RGB != img->type) {
fprintf(stderr, "%s bad type\n", __func__); fprintf(stderr, "%s bad type\n", __func__);
return -6; return -6;
} }
for (y=0; y<img->height; y++) for (x=0; x<img->width; x++) {
{ value = (float)x / (float)img->width;
value = (float)y / (float)img->height;
value *= dcoef; value *= dcoef;
for (x=0; x<img->width; x++) { for (y=0; y<img->height; y++) {
fimg_plot_rgb(img, x, y, value, value, value); fimg_plot_rgb(img, x, y, value, value, value);
} }
} }
@ -63,3 +62,47 @@ for (y=0; y<img->height; y++)
return 0; return 0;
} }
/* --------------------------------------------------------------------- */ /* --------------------------------------------------------------------- */
/* nouveau 19 septembre 2022 */
int fimg_do_stripes(FloatImg *img, int mode)
{
int x, y, quad;
float *ligne;
float fr, fg, fb;
fprintf(stderr, ">>> %s ( %p %d )\n", __func__, img, mode);
/*
* allocate and fill a lookup table
*/
if (NULL==(ligne=malloc(img->width*sizeof(float)))) {
fprintf(stderr, "%s: malloc fail\n", __func__);
exit(1);
}
for (x=0; x<img->width; x++)
ligne[x] = (float)x / (float)img->width;
/*
* build the pixels
*/
for (y=0; y<img->height; y++)
{
quad = (y*4) / img->height ;
for (x=0; x<img->width; x++) {
fr = fg = fb = ligne[x];
switch(quad) {
case 0: fg = fb = 0; break;
case 1: fr = fb = 0; break;
case 2: fr = fg = 0; break;
case 3: break;
default: abort(); break;
}
fimg_plot_rgb(img, x, y, fr, fg, fb);
}
}
free(ligne);
return 0;
}
/* --------------------------------------------------------------------- */

8
tools/mkfimg.c
View File

@ -154,8 +154,8 @@ fname = argv[optind];
if (verbosity>1) fprintf(stderr, "*** mkfimg *** %s %s *** pid %ld\n", if (verbosity>1) fprintf(stderr, "*** mkfimg *** %s %s *** pid %ld\n",
__DATE__, __TIME__, (long)getpid()); __DATE__, __TIME__, (long)getpid());
if (verbosity) fprintf(stderr, "making '%s' %dx%d, type %d\n", if (verbosity) fprintf(stderr, "::: %s is making '%s' %dx%d, type %d\n",
fname, width, height, type); argv[0], fname, width, height, type);
srand48(getpid() ^ time(NULL)); srand48(getpid() ^ time(NULL));
@ -176,6 +176,7 @@ switch(type) {
case T_TPAT0: fimg_test_pattern(&fimg, 0, fvalue); break; case T_TPAT0: fimg_test_pattern(&fimg, 0, fvalue); break;
case T_MIRCOL1: fimg_mircol_1(&fimg, fvalue); break; case T_MIRCOL1: fimg_mircol_1(&fimg, fvalue); break;
case T_BLOUP: fimg_draw_something(&fimg); break; case T_BLOUP: fimg_draw_something(&fimg); break;
case T_STRIPES: fimg_do_stripes(&fimg, 0); break;
case -1: exit(1); case -1: exit(1);
} }
@ -191,8 +192,9 @@ if (wrmdata) {
else { else {
foo = fimg_dump_to_file(&fimg, fname, 0); foo = fimg_dump_to_file(&fimg, fname, 0);
} }
if (foo) { if (foo) {
fprintf(stderr, "dump fimg to %s error -> %d\n", fname, foo); fprintf(stderr, "*** dump fimg to %s error -> %d\n", fname, foo);
exit(1); exit(1);
} }