1 files changed, 3 insertions, 1 deletions
diff --git a/src/adaptationlayers/threadedtexturemanager.cpp b/src/adaptationlayers/threadedtexturemanager.cpp
index 46f06a0..b9d128f 100644
--- a/src/adaptationlayers/threadedtexturemanager.cpp
+++ b/src/adaptationlayers/threadedtexturemanager.cpp
@@ -70,6 +70,7 @@ public:
     QSGTTMUploadThread *thread;
     QGLContext *context;
     QGLWidget *widget;
+    QGLFunctions functions;
 };
 
 QSGThreadedTextureManager::QSGThreadedTextureManager()
@@ -134,6 +135,7 @@ void QSGThreadedTextureManager::initializeThreadContext()
     d->context = const_cast<QGLContext *>(d->widget->context());
     if (!d->context)
         qFatal("QSGThreadedTextureManager: failed to create thread context...");
+    d->functions.initializeGLFunctions(d->context);
 
     d->widget->doneCurrent();
 
@@ -174,7 +176,7 @@ void QSGThreadedTextureManager::uploadInThread(TextureReference *texture, const
     glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, image.width(), image.height(), 0, GL_BGRA, GL_UNSIGNED_BYTE, image.constBits());
 
     if (hints & TextureManager::GenerateMipmapUploadHint)
-        glGenerateMipmap(GL_TEXTURE_2D);
+        d->functions.glGenerateMipmap(GL_TEXTURE_2D);
 
     glBindTexture(GL_TEXTURE_2D, 0);