From 02b4493659d2bd5ef1f8c9064d4b722260d4ed9b Mon Sep 17 00:00:00 2001
From: tTh <tth@redlady.dinorama.fr>
Date: Mon, 1 Apr 2024 00:07:34 +0200
Subject: [PATCH] minor changes

---
 experiment/Makefile     |  2 +-
 experiment/assemblage.c |  1 -
 experiment/cachengn.c   | 10 +++++-----
 experiment/mnt.c        | 26 +++++++++++++++++---------
 experiment/movepixels.c | 14 ++++++++------
 experiment/remotegrab.c |  0
 6 files changed, 31 insertions(+), 22 deletions(-)
 create mode 100644 experiment/remotegrab.c

diff --git a/experiment/Makefile b/experiment/Makefile
index 5d2f5d4..caccf7a 100644
--- a/experiment/Makefile
+++ b/experiment/Makefile
@@ -27,7 +27,7 @@ fimg2obj:	fimg2obj.c $(DEPS)
 	gcc $(COPT) $<  ../libfloatimg.a ${LIBS} -o $@
 
 # ---------------------------------------------------------
-#			CACHE ENGINE
+#			CACHE ENGINE (wip)
 
 cachengn.o:	cachengn.c cachengn.h Makefile
 	gcc $(COPT) -c $< 
diff --git a/experiment/assemblage.c b/experiment/assemblage.c
index a901f6f..c83fea8 100644
--- a/experiment/assemblage.c
+++ b/experiment/assemblage.c
@@ -51,7 +51,6 @@ if (foo) {
 	return -1;
 	}
 
-
 foo =  fimg_export_picture(&grande, outname, 0);
 if (foo) {
 	fprintf(stderr, "%s: error %d export '%s'\n", __func__,
diff --git a/experiment/cachengn.c b/experiment/cachengn.c
index b7e4026..4cd8b10 100644
--- a/experiment/cachengn.c
+++ b/experiment/cachengn.c
@@ -36,7 +36,7 @@ int init_empty_cache(int iw, int ih, int szc, int wtfparam)
 {
 int		idx;
 
-fprintf(stderr, ">>> %s ( %d %d   %d %d )\n", __func__,
+fprintf(stderr, ">>> %s ( %d %d %d   %d )\n", __func__,
 			iw, ih,  szc, wtfparam);
 
 /* MOLLYGUARD : don't init TWICE, please */
@@ -89,7 +89,7 @@ for (idx=0; idx<nombre_slots; idx++) {
 		}
 	}
 
-/* we not have this picture in ou cache, so we need a free
+/* we not have this picture in our cache, so we need a free
    slot for it */
 freeslot = -1;
 for (idx=0; idx<nombre_slots; idx++) {
@@ -103,9 +103,10 @@ fprintf(stderr, "freeslot = %d\n", freeslot);
 /* check if we can read this file */
 foo = access(fname, R_OK);			/* XXX */
 if (foo) {
-	perror(__FILE__ ": give_me_thiz_picz");
+	perror("give_me_thiz_picz");
 	return NULL;
 	}
+fprintf(stderr, "file '%s' is readble\n", fname);
 
 /* try to load the requested file */
 foo = fimg_create_from_dump(fname, &img);
@@ -113,8 +114,7 @@ if (foo) {
 	fprintf(stderr, "oups on %s\n", fname);
 	return NULL;
 	}
-/* OK we have all the pixels in core memorey */
-
+/* OK, we have all the pixels in core memory */
 
 return NULL;
 }
diff --git a/experiment/mnt.c b/experiment/mnt.c
index 9519123..55d9b3d 100644
--- a/experiment/mnt.c
+++ b/experiment/mnt.c
@@ -62,14 +62,14 @@ if (NULL == counts) {
 	}
 
 nbpix = img->width * img->height;
-minp = 1e10, maxp = -1e10;
+minp = 1e30, maxp = -1e30;
 
 for (offset=0; offset<nbpix; offset++) {
 	pixel = img->R[offset];
 	if (pixel < minp)	minp = pixel;
 	if (pixel > maxp)	maxp = pixel;
 	}
-fprintf(stderr, "    values =   %g  <  %g\n", minp, maxp);
+// fprintf(stderr, "    values =   %g  <  %g\n", minp, maxp);
 
 *pmax = maxp;		/* copy value for the caller */
 
@@ -111,9 +111,11 @@ fprintf(stderr, ">>> %s ( %p %p )\n", __func__, src, dst);
 /*
  *	trying some preprocessor filters
  */
-//foo = fimg_lissage_2x2(src);
 foo = fimg_lissage_3x3(src);
-if (foo) fprintf(stderr, "    lissage -> %d\n", foo);
+if (foo) fprintf(stderr, "    lissage 1 -> %d\n", foo);
+foo = fimg_lissage_3x3(src);
+if (foo) fprintf(stderr, "    lissage 2 -> %d\n", foo);
+
 foo = fimg_killborders(src);
 if (foo) fprintf(stderr, "    killborder -> %d\n", foo);
 
@@ -128,6 +130,7 @@ if (foo) {
 	fprintf(stderr, "create tmp pic --> %d\n", foo);
 	return foo;
 	}
+
 /* calcul de la pente : a vérifier ! */
 for (y=0; y<(src->height-1); y++) {
 	for (x=0; x<(src->width-1); x++) {
@@ -147,11 +150,11 @@ for (y=0; y<(src->height-1); y++) {
 foo = calcul_histo_gray(&tmp, "histogramme.data", 499, &maxp);
 if (foo) fprintf(stderr, "<<< calcul histo -> %d\n", foo);
 
-
 minp = 1e10;
 seuil = 0.700 * maxp;
 fprintf(stderr, "    seuil = %f\n", seuil);
 
+/*		ésotérisme, quand tu nous tiens...		*/
 for (offset=0; offset<(src->width*src->height); offset++) {
 	pente = tmp.R[offset];
 	if (pente > seuil) {
@@ -162,12 +165,17 @@ for (offset=0; offset<(src->width*src->height); offset++) {
 // fprintf(stderr, "    minp = %f      maxp = %f\n", minp, maxp);
 
 /* recopie dans l'image destination avec translation hauteur */
+fimg_clear(dst);
 for (offset=0; offset<(src->width*src->height); offset++) {
 	pente = tmp.R[offset] - minp;
-	if (pente < 0.0)  pente = 0.0;
-	dst->R[offset] = pente;
-	dst->G[offset] = pente;
-	dst->B[offset] = pente;
+	if (pente < 0.0) {
+		dst->R[offset] = -pente;
+		dst->G[offset] = -pente;
+		}
+	else	{
+		dst->B[offset] = pente;
+		dst->G[offset] = pente;
+		}
 	}
 
 foo = fimg_killborders(dst);
diff --git a/experiment/movepixels.c b/experiment/movepixels.c
index bc5e57f..5747172 100644
--- a/experiment/movepixels.c
+++ b/experiment/movepixels.c
@@ -69,8 +69,7 @@ for (yd=0; yd<pdst->height; yd++) {
 
 		if ( xs<0 || xs>psrc->width 	||
 		     ys<0 || ys>psrc->height ) {
-			rgb[0] = maxv;			/* fucking bug XXX */
-			rgb[1] = rgb[2] = 0.0;
+			rgb[0] = rgb[1] = rgb[2] = 0.0;
 			outside++;
 			}
 		else {
@@ -79,7 +78,6 @@ for (yd=0; yd<pdst->height; yd++) {
 			}
 
 		fimg_put_rgb(pdst, xd, yd, rgb);
-
 		}
 
 	}
@@ -89,7 +87,10 @@ for (yd=0; yd<pdst->height; yd++) {
 return 0;
 }
 /* ------------------------------------------------------------------- */
-
+/*
+ *	High level operateur, taking care of opening/closing
+ *	files and doing memory management
+ */
 int move_the_pixels(char *infile, char *statfile, char *outfile, int k)
 {
 int		foo;
@@ -145,9 +146,10 @@ srcfile = argv[1];
 dstfile = argv[2];
 verbosity = 0;
 
-foo = move_the_pixels(srcfile, "cumul.fimg", dstfile, 3);
+/* XXX the static picture file MUST be selectable by the yuser ! */
+foo = move_the_pixels(srcfile, "reference.fimg", dstfile, 3);
 
-// fprintf(stderr, "move pixels %s -> %s = %d\n", srcfile, dstfile, foo);
+fprintf(stderr, "move pixels %s -> %s = %d\n", srcfile, dstfile, foo);
 
 return 0;
 }
diff --git a/experiment/remotegrab.c b/experiment/remotegrab.c
new file mode 100644
index 0000000..e69de29