1 files changed, 78 insertions, 0 deletions

diff --git a/xbmc/addons/kodi-addon-dev-kit/include/kodi/gui/renderHelper.h b/xbmc/addons/kodi-addon-dev-kit/include/kodi/gui/renderHelper.h
new file mode 100644
index 0000000..2e96d21
--- /dev/null
+++ b/xbmc/addons/kodi-addon-dev-kit/include/kodi/gui/renderHelper.h
@@ -0,0 +1,78 @@
+/*
+ *  Copyright (C) 2005-2019 Team Kodi
+ *  This file is part of Kodi - https://kodi.tv
+ *
+ *  SPDX-License-Identifier: GPL-2.0-or-later
+ *  See LICENSES/README.md for more information.
+ */
+
+#pragma once
+
+#include "../AddonBase.h"
+
+namespace kodi
+{
+namespace gui
+{
+struct ATTRIBUTE_HIDDEN IRenderHelper
+{
+  virtual ~IRenderHelper() = default;
+  virtual bool Init() = 0;
+  virtual void Begin() = 0;
+  virtual void End() = 0;
+}; /* class IRenderHelper */
+} /* namespace gui */
+} /* namespace kodi */
+
+#if defined(WIN32) && defined(HAS_ANGLE)
+#include "gl/GLonDX.h"
+#else
+/*
+ * Default background GUI render helper class
+ */
+namespace kodi
+{
+namespace gui
+{
+struct ATTRIBUTE_HIDDEN CRenderHelperStub : public IRenderHelper
+{
+  bool Init() override { return true; }
+  void Begin() override { }
+  void End() override { }
+}; /* class CRenderHelperStub */
+
+using CRenderHelper = CRenderHelperStub;
+} /* namespace gui */
+} /* namespace kodi */
+#endif
+
+namespace kodi
+{
+namespace gui
+{
+
+/*
+ * Create render background handler, e.g. becomes on "Windows" Angle used
+ * to emulate GL.
+ *
+ * This only be used internal and not from addon's direct.
+ *
+ * Function defines here and not in CAddonBase because of a hen and egg problem.
+ */
+inline std::shared_ptr<IRenderHelper> ATTRIBUTE_HIDDEN GetRenderHelper()
+{
+  using namespace ::kodi::addon;
+  if (static_cast<CAddonBase*>(CAddonBase::m_interface->addonBase)->m_renderHelper)
+    return static_cast<CAddonBase*>(CAddonBase::m_interface->addonBase)->m_renderHelper;
+
+  const std::shared_ptr<kodi::gui::IRenderHelper> renderHelper(new CRenderHelper());
+  if (!renderHelper->Init())
+    return nullptr;
+
+  static_cast<CAddonBase*>(CAddonBase::m_interface->addonBase)->m_renderHelper =
+      renderHelper; // Hold on base for other types
+  return renderHelper;
+}
+
+} /* namespace gui */
+} /* namespace kodi */