From 56073c0c80273432e22236ea780285cd17ed4500 Mon Sep 17 00:00:00 2001
From: tTh <tth@redlady.dinorama.fr>
Date: Mon, 19 Sep 2022 11:58:30 +0200
Subject: [PATCH] new func: fimg_do_stripes(&fimg, 0);

---
 floatimg.h     |  3 ++-
 funcs/rampes.c | 55 ++++++++++++++++++++++++++++++++++++++++++++------
 tools/mkfimg.c |  8 +++++---
 3 files changed, 56 insertions(+), 10 deletions(-)

diff --git a/floatimg.h b/floatimg.h
index bee8dfc..e91d886 100644
--- a/floatimg.h
+++ b/floatimg.h
@@ -20,7 +20,7 @@
  *	https://git.tetalab.org/tTh/FloatImg
  */
 
-#define		FIMG_VERSION	(201)
+#define		FIMG_VERSION	(202)
 #define		RELEASE_NAME	("noname")
 
 /* 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		*/
 int fimg_hdeg_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		*/
 int   fimg_fileinfos(char *fname, int *datas);
diff --git a/funcs/rampes.c b/funcs/rampes.c
index c6a76b2..a612b82 100644
--- a/funcs/rampes.c
+++ b/funcs/rampes.c
@@ -5,6 +5,7 @@
 
 #include  <stdio.h>
 #include  <stdint.h>
+#include  <stdlib.h>
 #include  <sys/time.h>
 
 #include  "../floatimg.h"
@@ -23,8 +24,7 @@ if (FIMG_TYPE_RGB != img->type) {
 	fprintf(stderr, "%s bad type\n", __func__);
 	return -6;
 	}
-for (x=0; x<img->width; x++)
-	{
+for (x=0; x<img->width; x++) {
 	value = (float)x / (float)img->width;
 	value *= dcoef;
 	for (y=0; y<img->height; y++) {
@@ -51,11 +51,10 @@ 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;
+for (x=0; x<img->width; x++) {
+	value = (float)x / (float)img->width;
 	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);
 		}
 	}
@@ -63,3 +62,47 @@ for (y=0; y<img->height; y++)
 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;
+}
+/* --------------------------------------------------------------------- */
diff --git a/tools/mkfimg.c b/tools/mkfimg.c
index c5c28b2..4737f8f 100644
--- a/tools/mkfimg.c
+++ b/tools/mkfimg.c
@@ -154,8 +154,8 @@ fname = argv[optind];
 
 if (verbosity>1) fprintf(stderr, "*** mkfimg *** %s %s *** pid %ld\n",
 				__DATE__, __TIME__, (long)getpid());
-if (verbosity)   fprintf(stderr, "making  '%s'  %dx%d, type %d\n",
-					fname, width, height, type);
+if (verbosity)   fprintf(stderr, "::: %s is making  '%s'  %dx%d, type %d\n",
+					argv[0], fname, width, height, type);
 
 srand48(getpid() ^ time(NULL));
 
@@ -176,6 +176,7 @@ switch(type) {
 	case T_TPAT0:		fimg_test_pattern(&fimg, 0, fvalue); break;
 	case T_MIRCOL1:		fimg_mircol_1(&fimg, fvalue);	break;
 	case T_BLOUP:		fimg_draw_something(&fimg);	break;
+	case T_STRIPES:		fimg_do_stripes(&fimg, 0);	break;
 	case -1:		exit(1);
 	}
 
@@ -191,8 +192,9 @@ if (wrmdata) {
 else	{
 	foo = fimg_dump_to_file(&fimg, fname, 0);
 	}
+
 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);
 	}