From e1bb0b57f7445c1d2d73cecefc4ae15daa403d90 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gonzalo=20Garramu=C3=B1o?= <ggarra13@gmail.com>
Date: Sun, 10 Sep 2023 07:30:28 -0300
Subject: [PATCH] Fixed OpenGL error on Saving image or sequences.

---
 mrv2/lib/mrvFl/mrvSaving.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/mrv2/lib/mrvFl/mrvSaving.cpp b/mrv2/lib/mrvFl/mrvSaving.cpp
index ef20e039f..2d20eeb9a 100644
--- a/mrv2/lib/mrvFl/mrvSaving.cpp
+++ b/mrv2/lib/mrvFl/mrvSaving.cpp
@@ -15,6 +15,7 @@ namespace fs = std::filesystem;
 #include <tlCore/StringFormat.h>
 #include <tlCore/Time.h>
 
+#include <tlGL/Init.h>
 #include <tlGL/Util.h>
 #include <tlTimeline/GLRender.h>
 
@@ -224,6 +225,10 @@ namespace mrv
             view->setHudActive(false);
 
             math::Size2i offscreenBufferSize(renderSize.w, renderSize.h);
+
+            view->make_current();
+            gl::initGLAD();
+
             auto buffer = gl::OffscreenBuffer::create(
                 offscreenBufferSize, offscreenBufferOptions);
 
@@ -249,6 +254,9 @@ namespace mrv
                     const auto& videoData =
                         timeline->getVideo(currentTime).get();
 
+                    view->make_current();
+                    gl::initGLAD();
+
                     // Render the video.
                     gl::OffscreenBufferBinding binding(buffer);
                     CHECK_GL;
@@ -519,6 +527,8 @@ namespace mrv
             view->setHudActive(false);
 
             math::Size2i offscreenBufferSize(renderSize.w, renderSize.h);
+            view->make_current();
+            gl::initGLAD();
             auto buffer = gl::OffscreenBuffer::create(
                 offscreenBufferSize, offscreenBufferOptions);
             CHECK_GL;