From d9a260eabe4a3bd4f4e1e69f0430af2589d45a4f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=BCri=20Valdmann?= <juri.valdmann@qt.io>
Date: Mon, 22 Jun 2020 13:18:03 +0200
Subject: [PATCH] Use global share context in QRhiGles2

Needed for using native textures in WebEngine.

Task-number: QTBUG-78682
Change-Id: I8458b17767bb992357064d85f159781ea24e61dc
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
---
 src/gui/rhi/qrhigles2.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/gui/rhi/qrhigles2.cpp b/src/gui/rhi/qrhigles2.cpp
index 139375fbec8..9a311101e15 100644
--- a/src/gui/rhi/qrhigles2.cpp
+++ b/src/gui/rhi/qrhigles2.cpp
@@ -413,6 +413,10 @@ bool QRhiGles2::create(QRhi::Flags flags)
     if (!importedContext) {
         ctx = new QOpenGLContext;
         ctx->setFormat(requestedFormat);
+        if (QOpenGLContext *shareContext = qt_gl_global_share_context()) {
+            ctx->setShareContext(shareContext);
+            ctx->setScreen(shareContext->screen());
+        }
         if (!ctx->create()) {
             qWarning("QRhiGles2: Failed to create context");
             delete ctx;