faire des bords sombres

Fonderie/Makefile

@@ -1,5 +1,6 @@
 #
-#		compilation de la fonderie
+#		compilation de la fonderie, du crapulator
+#		et de tout le crap...
 #
 
 COPT = -g -no-pie -Wall -DDEBUG_LEVEL=0 -Werror=parentheses

Fonderie/crapulator.c

@@ -53,6 +53,9 @@ return 0;
  *	This is the main filter engine
  *	used both for input and output
  */
+
+#define DEBUG_THIS_CRAP		1
+
 int crapulator(FloatImg *image, int idFx, float fval)
 {
 int			retval;
@@ -67,11 +70,13 @@ fprintf(stderr, ">>> %s ( %p %d %f )\n", __func__,
 
 retval = 0;
 
+#if DEBUG_THIS_CRAP
 if (666==count) {
 	flag_debug = 1;
 	fprintf(stderr, "DEBUG PT 1 in %s:%d\n", __func__, __LINE__);
 	fimg_save_as_png(image, "crap_before.png", 0);
 	}
+#endif
 
 switch (idFx) {
 	case 0:		/* DO NOTHING */
@@ -117,6 +122,9 @@ switch (idFx) {
 	case 11:
 		retval = trinarize(image, 0);
 		break;
+	case 24:			/* experiment ! */
+		retval = des_bords_sombres_a(image, 260);
+		break;
 	case 25:
 		/* please make this function more tweakable */
 		retval = vertical_singlitch(image, 290+rand()%35,
@@ -128,12 +136,15 @@ switch (idFx) {
 		return -77;
 	}
 
+#if DEBUG_THIS_CRAP
 if (flag_debug) {
 	fprintf(stderr, "DEBUG PT 2 in %s:%d\n", __func__, __LINE__);
 	fimg_save_as_png(image, "crap_after.png", 0);
+	flag_debug = 0;
 	}
+#endif
 
-count++;	flag_debug = 0;
+count++;
 
 return retval;
 }

Fonderie/fonctions.h

@@ -40,6 +40,7 @@ int create_fifo(int nbslot, int w, int h, int t);
  *		funcs in 'sfx.c'
  */
 
+int des_bords_sombres_a(FloatImg *pimg, int offset);
 int trinarize(FloatImg *pimg, int notused);
 int binarize(FloatImg *pimg, int notused);
 

Fonderie/fonderie.c

@@ -89,6 +89,11 @@ else			fprintf(stderr, "\tno out fx\n");
 
 memset(&globbuf, 0, sizeof(glob_t));
 foo = glob(pattern, 0, NULL, &globbuf);
+if (foo) {
+	fprintf(stderr, "glob failure %d\n", foo);
+	exit(1);
+	}
+
 fprintf(stderr, "glob '%s' -> %d, %ld files found\n", pattern, foo,
 						globbuf.gl_pathc);
 
@@ -136,7 +141,7 @@ for (idx=0; idx<globbuf.gl_pathc; idx++) {
 		fprintf(stderr, "traitement %s -> %d WTF?\n", cptr, foo);
 		break;
 		}
-	fprintf(stderr, "\t%5d\r", idx);
+	fprintf(stderr, "\t%5d / %5ld\r", idx, globbuf.gl_pathc);
 	}
 fputs("\n", stderr);
 

Fonderie/interpolator.c

@@ -164,7 +164,7 @@ for (idx=0; idx<globbuf.gl_pathc; idx++) {
 	/*				 OK try it ... */
 	foo = crapulator(&B, infx, value/2.0);
 	if (foo) {
-		fprintf(stderr, "in fx crapulator failure %d\n", foo);
+		fprintf(stderr, "%s: input fx fail %d\n", __func__, foo);
 		exit(1);
 		}
 
@@ -175,8 +175,8 @@ for (idx=0; idx<globbuf.gl_pathc; idx++) {
 		/* here we can insert the OUTPUT filter */
 		foo = crapulator(&Out, outfx, value);
 		if (foo) {
-			fprintf(stderr, "\nout fx %d crapulator failure %d\n",
-						outfx,		foo);
+			fprintf(stderr, "\n%s: out fx %d failure %d\n",
+						__func__, outfx, foo);
 			exit(1);
 			}
 

Fonderie/sfx.c

@@ -17,6 +17,38 @@
  */
 extern	int		verbosity;
 
+/* -------------------------------------------------------------- */
+/* nouveau du 20 novembre 2020, pour encoder une vidz du vernissage
+ * du festival Sauvageonnes de Mixart-Myrys					 */
+int des_bords_sombres_a(FloatImg *pimg, int offset)
+{
+float		coef;
+int		xpos, lidx, y;
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( %p %d )\n", __func__, pimg, offset);
+#endif
+
+if (offset<0 || offset>pimg->width) {
+	fprintf(stderr, "%s offset %d is bad\n", __func__, offset);
+	return -66;
+	}
+
+for (y=0; y<pimg->height; y++) {
+	lidx = y * pimg->width;
+	for (xpos=0; xpos<offset; xpos++) {
+		coef = (float)xpos / (float)offset;
+		pimg->R[xpos+lidx] *= coef;
+		pimg->G[xpos+lidx] *= coef;
+		pimg->B[xpos+lidx] *= coef;
+		pimg->R[(pimg->width-xpos)+lidx] *= coef;
+		pimg->G[(pimg->width-xpos)+lidx] *= coef;
+		pimg->B[(pimg->width-xpos)+lidx] *= coef;
+		}
+	}
+
+return 0;
+}
 /* -------------------------------------------------------------- */
 int trinarize(FloatImg *pimg, int notused)
 {