From cba8a0bb9c40331bb35dd8bbc1899bc427dd4a5a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Du=C5=A1an=20Poizl?= <nou.spiro@gmail.com>
Date: Mon, 18 Apr 2022 09:55:06 +0200
Subject: [PATCH] Clear image sizes buffer to prevent graphical glitches

---
 imagescrollareagl.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/imagescrollareagl.cpp b/imagescrollareagl.cpp
index fbd4630..a2dde9c 100644
--- a/imagescrollareagl.cpp
+++ b/imagescrollareagl.cpp
@@ -126,7 +126,10 @@ void ImageWidget::allocateThumbnails(int count)
     m_thumbnailTexture->setLayers(count);
     m_thumbnailTexture->allocateStorage();
     m_bufferSizes->bind();
-    m_bufferSizes->allocate(count * sizeof(float)*3);
+    float *tmp = new float[count*3];
+    memset(tmp, 0, count * sizeof(float)*3);
+    m_bufferSizes->allocate(tmp, count * sizeof(float)*3);
+    delete [] tmp;
     m_thumbnailCount = count;
 }