From a9bfef2a571ae2fbae0a9fb27a583c42b06c82ee Mon Sep 17 00:00:00 2001
From: Kornel <kornel@geekhood.net>
Date: Thu, 25 May 2017 16:32:23 +0100
Subject: [PATCH] Reset scans to value expected by the TJ API

Fixes #260
---
 turbojpeg.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/turbojpeg.c b/turbojpeg.c
index 5e370d58..9434e325 100644
--- a/turbojpeg.c
+++ b/turbojpeg.c
@@ -2115,6 +2115,10 @@ DLLEXPORT int DLLCALL tjTransform(tjhandle handle,
 			&xinfo[i]);
 		if(!(t[i].options&TJXOPT_NOOUTPUT))
 		{
+#ifdef C_PROGRESSIVE_SUPPORTED
+			if (cinfo->num_scans != 0)     /* process -progressive; -scans can override */
+				jpeg_simple_progression(cinfo);
+#endif
 			jpeg_write_coefficients(cinfo, dstcoefs);
 			jcopy_markers_execute(dinfo, cinfo, JCOPYOPT_ALL);
 		}