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