From 26ba0330b5021202beb57f99197e94cce468363c Mon Sep 17 00:00:00 2001
From: Lucas <lucas@domain.invalid>
Date: Mon, 16 Mar 2020 01:56:29 +0000
Subject: [PATCH] [julia] make bailout and epsilon configurable

---
 julia.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/julia.c b/julia.c
index 7b5871c..7f47dcb 100644
--- a/julia.c
+++ b/julia.c
@@ -30,7 +30,7 @@
 
 #define RITNUM(c, i) (c[i].it - c[i].rit)
 
-#define OPTSTRING "a:b:c:D:d:h:Ll:N:n:w:x:y:z:"
+#define OPTSTRING "a:B:b:c:D:d:e:h:Ll:N:n:w:x:y:z:"
 #define RADIAN 3.14159265358979323846L
 
 struct color contour_color = { 0 };
@@ -105,10 +105,11 @@ iterate(long double complex z, long double complex c, long double *rit)
 static void
 usage(void)
 {
-	fprintf(stderr, "Usage: %s julia [-L] [-a center_x] [-b center_y]\n"
-	    "    [-c contour] [-D displacement] [-d density] [-h height]\n"
-	    "    [-l light_intensity] [-N newton_iters] [-n iters]\n"
-	    "    [-w width] [-x julia_x] [-y julia_y] [-z zoom]\n",
+	fprintf(stderr, "Usage: %s julia [-L] [-a center_x] [-B bailout]\n"
+	    "    [-b center_y] [-c contour] [-D displacement] [-d density]\n"
+	    "    [-e epsilon] [-h height] [-l light_intensity]\n"
+	    "    [-N newton_iters] [-n iters] [-w width] [-x julia_x]\n"
+	    "    [-y julia_y] [-z zoom]\n",
 	    xgetprogname());
 	exit(1);
 }
@@ -144,6 +145,9 @@ julia_main(int argc, char *argv[])
 		case 'a':
 			cen_x = parse_double(optarg);
 			break;
+		case 'B':
+			bailout = parse_double(optarg);
+			break;
 		case 'b':
 			cen_y = parse_double(optarg);
 			break;
@@ -156,6 +160,9 @@ julia_main(int argc, char *argv[])
 		case 'd':
 			density = parse_double(optarg);
 			break;
+		case 'e':
+			epsilon = parse_double(optarg);
+			break;
 		case 'h':
 			height = parse_integer(optarg, 1, INT_MAX);
 			break;