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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
//=============================================================================
//
// Graphics driver factory interface
//
// Graphics factory is supposed to be singleton. Factory implementation must
// guarantee that it may be created and destroyed any number of times during
// program execution.
//
//=============================================================================
#ifndef AGS_ENGINE_GFX_GFX_DRIVER_FACTORY_H
#define AGS_ENGINE_GFX_GFX_DRIVER_FACTORY_H
#include "common/std/memory.h"
#include "ags/shared/util/string.h"
#include "ags/shared/util/string_types.h"
namespace AGS3 {
namespace AGS {
namespace Engine {
using Shared::String;
using Shared::StringV;
class IGraphicsDriver;
class IGfxFilter;
struct GfxFilterInfo;
typedef std::shared_ptr<IGfxFilter> PGfxFilter;
class IGfxDriverFactory {
public:
virtual ~IGfxDriverFactory() {
}
// Shutdown graphics factory and deallocate any resources it owns;
// graphics factory will be unusable after calling this function.
virtual void Shutdown() = 0;
// Get graphics driver associated with this factory; creates one if
// it does not exist.
virtual IGraphicsDriver *GetDriver() = 0;
// Destroy graphics driver associated with this factory; does nothing
// if one was not created yet,
virtual void DestroyDriver() = 0;
// Get number of supported filters
virtual size_t GetFilterCount() const = 0;
// Get filter description
virtual const GfxFilterInfo *GetFilterInfo(size_t index) const = 0;
// Get ID of the default filter
virtual String GetDefaultFilterID() const = 0;
// Assign specified filter to graphics driver
virtual PGfxFilter SetFilter(const String &id, String &filter_error) = 0;
};
// Query the available graphics factory names
void GetGfxDriverFactoryNames(StringV &ids);
// Acquire the graphics factory singleton object by its id
IGfxDriverFactory *GetGfxDriverFactory(const String id);
} // namespace Engine
} // namespace AGS
} // namespace AGS3
#endif
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