From 37f5935a8985c38e4f7e227214cc3b0bffec32b0 Mon Sep 17 00:00:00 2001
From: Friedemann Kleint <Friedemann.Kleint@digia.com>
Date: Thu, 6 Mar 2014 11:02:48 +0100
Subject: [PATCH] tst_QGLThreads: Fix errors about makeCurrent() in different
 thread.

QFATAL : tst_QGLThreads::textureUploadInThread() Cannot make QOpenGLContext current in a different thread
QFATAL : tst_QGLThreads::painterOnPboInThread() Cannot make QOpenGLContext current in a different thread

Task-number: QTBUG-28264

Change-Id: I281cf0593e01b43456410a9a53746bbb15f34f24
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
---
 tests/auto/opengl/qglthreads/tst_qglthreads.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/tests/auto/opengl/qglthreads/tst_qglthreads.cpp b/tests/auto/opengl/qglthreads/tst_qglthreads.cpp
index 63c6cb658b..999761e3f0 100644
--- a/tests/auto/opengl/qglthreads/tst_qglthreads.cpp
+++ b/tests/auto/opengl/qglthreads/tst_qglthreads.cpp
@@ -216,6 +216,11 @@ public:
     {
         m_gl = new QGLWidget(0, shareWidget);
         moveToThread(this);
+
+    }
+
+    void moveContextToThread()
+    {
         m_gl->context()->moveToThread(this);
     }
 
@@ -307,6 +312,7 @@ void tst_QGLThreads::textureUploadInThread()
     display.show();
     QVERIFY(QTest::qWaitForWindowActive(&display));
 
+    thread.moveContextToThread();
     thread.start();
 
     while (thread.isRunning()) {
@@ -630,6 +636,12 @@ class PaintThreadManager
 public:
     PaintThreadManager(int count) : numThreads(count)
     {
+        for (int i=0; i<numThreads; ++i)
+            devices.append(new T);
+        // Wait until resize events are processed on the internal
+        // QGLWidgets of the buffers to suppress errors
+        // about makeCurrent() from the wrong thread.
+        QCoreApplication::processEvents();
         for (int i=0; i<numThreads; ++i) {
             devices.append(new T);
             threads.append(new QThread);