fix a bug in rotate_90

floatimg.h

@@ -3,7 +3,7 @@
  *			ugly code from tTh
  */
 
-#define		FIMG_VERSION	101
+#define		FIMG_VERSION	102
 
 /*
  *	in memory descriptor

funcs/rotate.c

@@ -15,7 +15,7 @@ extern int		verbosity;
 int fimg_rotate_90(FloatImg *src, FloatImg *dst, int notused)
 {
 int			foo;
-int			x, y;
+int			x, y, j, k;
 float			rgb[3];
 
 #if DEBUG_LEVEL
@@ -56,7 +56,12 @@ if ( (src->type != dst->type)    ||
 for (y=0; y<src->height; y++) {
 	for (x=0; x<src->width; x++) {
 		fimg_get_rgb(src, x, y, rgb);
-		fimg_put_rgb(dst, y, x, rgb);
+		j = (dst->height - x) - 1;
+		k = (dst->width  - y) - 1;
+#if DEBUG_LEVEL > 1
+		fprintf(stderr, "%6d %6d\n", k, j);
+#endif
+		fimg_put_rgb(dst, k, x, rgb);
 		}
 	}
 

v4l2/grabvidseq.c

@@ -369,10 +369,11 @@ switch (contrast) {
 	}
 
 /* XXX warning, new from coronahome 26 mars 2020 */
+to_save = &cumul;
 if (90 == rotfactor) {
 	memset(&tmpfimg, 0, sizeof(FloatImg));
 	foo = fimg_rotate_90(&cumul, &tmpfimg, 0);
-	if (verbosity > 1) {
+	if (verbosity > 2) {
 		fprintf(stderr, "dump rot90 %p\n", &tmpfimg);
 		foo = fimg_save_as_png(&tmpfimg, "rot90.png", 0);
 		}
@@ -383,13 +384,13 @@ if (90 == rotfactor) {
 foo = format_from_extension(outfile);
 switch (foo) {
 	case FILE_TYPE_FIMG:
-		foo = fimg_dump_to_file(&cumul, outfile, 0);
+		foo = fimg_dump_to_file(to_save, outfile, 0);
 		break;
 	case FILE_TYPE_PNM:
-		foo = fimg_save_as_pnm(&cumul, outfile, 1);
+		foo = fimg_save_as_pnm(to_save, outfile, 1);
 		break;
 	case FILE_TYPE_PNG:
-		foo = fimg_save_as_png(&cumul, outfile, 0);
+		foo = fimg_save_as_png(to_save, outfile, 0);
 		break;
 	default:
 		fprintf(stderr, "can't save as %s\n", outfile);