more experiments

Fonderie/crapulator.c

@@ -203,6 +203,9 @@ switch (idFx) {
 		retval = octotree_classif(image, 0.500, 0);
 		break;
 
+	case CR_trinitron:
+		retval = trinitron(image, 0);
+		break;
 
 	/* here are the glitches */
 	case CR_bsombra:			/* experiment ! */
@@ -228,6 +231,10 @@ switch (idFx) {
 		retval = 0;
 		break;
 
+	case CR_nothing:
+		retval = do_something(image, 3);
+		break;
+
 	default :
 		fprintf(stderr, "%s : effect #%d invalid\n", 
 				__func__, idFx);

Fonderie/crapulors.liste

@@ -19,9 +19,11 @@
 18	updown		1	1.0
 19	hipass		1	1.0
 20	octotree	1	1.0
+21	trinitron	3,	0.0
 24	bsombra		1	1.0
 25	vsglitch	1	1.0
 26	rndblks		1	1.0
 27	shiftln0	1	1.0
+42	nothing		42	3.14159
 99	message		1	1.0
 -1	end		1	1.0

Fonderie/filterstack.c

@@ -125,8 +125,9 @@ for (idx=0; idx<f_stacks[numid].count; idx++) {
 
 	if (foo) {
 		fprintf(stderr,
-			"crapulator give me error %d on effect %d\n",
-						foo, 		eff);
+			"crapulator give me error %d on effect %d (%s)\n",
+						foo, 		eff,
+				crap_name_from_number(eff));
 		return foo;
 		}
 	}

Fonderie/glitches.c

@@ -16,6 +16,28 @@
 
 extern int		verbosity;
 
+/*   --------------------------------------------------------------   */
+/* nouveau du 32 decembre 2020, endless september                 */
+int do_something(FloatImg *pimg, int notused)
+{
+int		ypos, idx, pos, sline;
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( %p %d )\n", __func__, pimg, notused);
+#endif
+
+ypos = rand() % pimg->width;
+
+for (idx=0; idx < pimg->height; idx++) {
+	sline = idx * pimg->width;
+	pos = sline + ypos;
+	// fprintf(stderr, "%6d   %6d\n", idx, sline);
+	pimg->R[pos] = pimg->G[pos];
+	pimg->B[pos] = pimg->G[pos];
+	}
+
+return 0;
+}
 /*   --------------------------------------------------------------   */
 int kill_a_random_line(FloatImg *pvictime, float fval, int bits)
 {

Fonderie/glitches.h

@@ -2,6 +2,8 @@
  * 		glitches.h
  */
 
+int do_something(FloatImg *pimg, int notused);
+
 int kill_a_random_line(FloatImg *pvictime, float level, int bits);
 int kill_a_few_lines(FloatImg *who, float fval, int number);
 int random_blocks(FloatImg *picture, int percent);

Fonderie/metriques.c

@@ -9,6 +9,38 @@
 
 extern int		verbosity;
 
+/*   --------------------------------------------------------------   */
+int stat_zone(FloatImg *pimg, int geom[4], float v3[3])
+{
+int		x, y, xe, ye;
+int		off;
+double		accus[3], divisor;
+
+xe = geom[0] + geom[2];
+ye = geom[1] + geom[3];
+
+#if DEBUG_LEVEL
+fprintf(stdout, "geom: %5d %5d %5d %5d\n", 
+			geom[0], geom[1], geom[2], geom[3]);
+#endif
+
+accus[0] = accus[1] = accus[2] = 0.0;
+for (y=geom[1]; y<ye; y++) {
+	for (x=geom[0]; x<xe; x++) {
+		off = (y*pimg->width) + x;
+		accus[0] += (double) pimg->R[off];
+		accus[1] += (double) pimg->G[off];
+		accus[2] += (double) pimg->B[off];
+		}
+	}
+
+divisor = (double)(geom[2] * geom[3]);		/* array of zone */
+v3[0] = (float)(accus[0] / divisor);
+v3[1] = (float)(accus[1] / divisor);
+v3[2] = (float)(accus[2] / divisor);
+
+return 0;
+}
 /*   --------------------------------------------------------------   */
 /*
  *	premier essai...

Fonderie/metriques.h

@@ -4,6 +4,9 @@
 
 /*   --------------------------------------------------------------   */
 
+int stat_zone(FloatImg *pimg, int geom[4], float v3[3]);
+
+
 /*		first experiments */
 
 int get_float_metric_a(FloatImg *pimg, float *where);

Fonderie/sfx.c

@@ -12,6 +12,7 @@
 #include  "../floatimg.h"
 
 #include  "fonctions.h"
+#include  "metriques.h"
 #include  "sfx.h"
 
 /* -------------------------------------------------------------- */
@@ -20,12 +21,50 @@
 extern	int		verbosity;
 
 /* -------------------------------------------------------------- */
-/* nouveau du 27 decembre 2020, un soir de grand froid...         */
+/* nouveau du premier dimanche de 2020 'nextgen'		*/
+static int pixel_trinitron(FloatImg *pimg, int pos[4], float *fvals)
+{
+int		x, y, off;
 
+for (y=pos[1]; y<pos[1]+pos[3]; y++) {
+	for (x=pos[0]; x<pos[0]+pos[2]; x++) {
+		off = (y*pimg->width) + x;
+		pimg->R[off] = fvals[0];
+		}
+	}
+return 0;
+}
+int trinitron(FloatImg *pimg, int notused)
+{
+int		x, y, coo[4], foo;
+float		vals[3];
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( %p %d )\n", __func__, pimg, notused);
+#endif
+
+#define STP  16			/* stepd for x & y axex */
+coo[2] = coo[3] = STP;
+
+for (y=0; y<pimg->height; y+=STP) {
+	coo[1] = y;
+	for (x=0; x<pimg->width; x+=STP) {
+		coo[0] = x;
+		foo = stat_zone(pimg, coo, vals);
+		if (foo)	abort();
+		/* next step : plot the datas */
+		pixel_trinitron(pimg, coo, vals);
+		}
+	}
+#undef STP
+return 0;
+}
+/* -------------------------------------------------------------- */
+/* nouveau du 27 decembre 2020, un soir de grand froid...         */
 int octotree_classif(FloatImg *pimg, float kdist, int notused)
 {
 int		foo;
-float		mm[6], means[4],  delta[3];
+float		mm[6], delta[3];
 float		r, g, b, kr, kg, kb, dp, trig;
 int		idx, sz, n8, count;
 typedef struct {
@@ -38,16 +77,6 @@ fprintf(stderr, ">>> %s ( %p %f %d )\n", __func__,
 				pimg, kdist, notused);
 #endif
 
-#if 0
-foo = fimg_meanvalues(pimg, means);
-if (foo) {
-	fprintf(stderr, "oups %d in meanvalues\n", foo);
-	return foo;
-	}
-fprintf(stderr, "means:  %11f  %11f  %11f\n",
-				means[0], means[1], means[2]);
-#endif
-
 foo = fimg_get_minmax_rgb(pimg, mm);
 if (foo) {
 	fprintf(stderr, "oups %d in get minmax\n", foo);

Fonderie/sfx.h

@@ -3,6 +3,8 @@
  *	---------------------------------------------------
  */
 
+int trinitron(FloatImg *pimg, int notused);
+
 int bouger_les_pixels(FloatImg *pimg, int kaboo);
 int octotree_classif(FloatImg *pimg, float fk, int notused);