From 29ca149b4bc44347049efa86615396d0de9a7408 Mon Sep 17 00:00:00 2001
From: Mira Grudzinska <m.grudzinska@samsung.com>
Date: Sun, 7 Feb 2021 00:01:49 +0100
Subject: [PATCH] sw_engine rle: fixing clipping with non overlaping figures

For clip that did not overlap with the plotted source, the whole
source was plotted - the size of the rle data was not updated.
---
 src/lib/sw_engine/tvgSwRle.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/lib/sw_engine/tvgSwRle.cpp b/src/lib/sw_engine/tvgSwRle.cpp
index 352e42c2..3255b6cc 100644
--- a/src/lib/sw_engine/tvgSwRle.cpp
+++ b/src/lib/sw_engine/tvgSwRle.cpp
@@ -917,7 +917,12 @@ void rleFree(SwRleData* rle)
 
 void updateRleSpans(SwRleData *rle, SwSpan* curSpans, uint32_t size)
 {
-    if (!rle->spans || !curSpans || size == 0) return;
+    if (size == 0) {
+        rle->size = 0;
+        return;
+    }
+
+    if (!rle->spans || !curSpans) return;
     rle->size = size;
     rle->spans = static_cast<SwSpan*>(realloc(rle->spans, rle->size * sizeof(SwSpan)));