/*
-----------------------------------------------------------------------------
This source file is part of OGRE
    (Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org/

Copyright (c) 2000-2021 Torus Knot Software Ltd

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
-----------------------------------------------------------------------------
*/

#ifndef _OgreTerraWorkspaceListener_H_
#define _OgreTerraWorkspaceListener_H_

#include "Terra/Hlms/OgreHlmsTerraPrerequisites.h"

#include "Compositor/OgreCompositorWorkspaceListener.h"

namespace Ogre
{
    class Terra;

    /** \addtogroup Component
     *  @{
     */
    /** \addtogroup Effects
     *  @{
     */

    /**
    @brief TerraWorkspaceListener
        This listener allows Terra to cast shadows in Point and Spot shadow maps
        This feature is optional.

        If the listener is not registered, Terra won't cast shadows in point
        and spot lights
    */
    class TerraWorkspaceListener : public CompositorWorkspaceListener
    {
        HlmsTerra *m_hlmsTerra;
        /// When true, we've modified Terra to properly perform shadow mapping
        /// for non-directional lights
        bool m_terraNeedsRestoring;

    public:
        TerraWorkspaceListener( HlmsTerra *hlmsTerra );
        virtual ~TerraWorkspaceListener();

        void setHlmsTerra( HlmsTerra *hlmsTerra ) { m_hlmsTerra = hlmsTerra; }

        virtual void passPreExecute( CompositorPass *pass );
        virtual void passSceneAfterShadowMaps( CompositorPassScene *pass );
    };

    /** @} */
    /** @} */

}  // namespace Ogre

#include "OgreHeaderSuffix.h"

#endif
