Resolves: tdf#122701 opengl settings don't affect gtk3

Change-Id: Iffcf9b6ea8d191a509c2ca451f2ce4a249fde922
Reviewed-on: https://gerrit.libreoffice.org/66285
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>
diff --git a/cui/source/options/optgdlg.cxx b/cui/source/options/optgdlg.cxx
index 9fa7ce0..80cb1cb 100644
--- a/cui/source/options/optgdlg.cxx
+++ b/cui/source/options/optgdlg.cxx
@@ -526,7 +526,7 @@ CanvasSettings::CanvasSettings() :
bool CanvasSettings::IsHardwareAccelerationAvailable() const
{
#if HAVE_FEATURE_OPENGL
    if( OpenGLWrapper::isVCLOpenGLEnabled() )
    if (OpenGLWrapper::isVCLOpenGLEnabled() && Application::GetToolkitName() != "gtk3")
        mbHWAccelAvailable = false;

    else