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https://github.com/libretro/scummvm.git
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60 lines
1.8 KiB
C
60 lines
1.8 KiB
C
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/* 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
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef GOB_BACKBUFFER_H
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#define GOB_BACKBUFFER_H
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#include "common/system.h"
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namespace Gob {
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class Surface;
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class BackBuffer {
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public:
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BackBuffer();
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~BackBuffer();
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protected:
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void trashBuffer();
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void resizeBuffer(uint16 width, uint16 height);
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bool saveScreen (const Surface &dest, int16 &left, int16 &top, int16 &right, int16 &bottom);
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bool restoreScreen( Surface &dest, int16 &left, int16 &top, int16 &right, int16 &bottom);
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bool hasBuffer() const;
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bool hasSavedBackground() const;
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private:
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Surface *_background; ///< The saved background.
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bool _saved; ///< Was the background saved?
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int16 _saveLeft; ///< The left position of the saved background.
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int16 _saveTop; ///< The top of the saved background.
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int16 _saveRight; ///< The right position of the saved background.
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int16 _saveBottom; ///< The bottom position of the saved background.
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};
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} // End of namespace Gob
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#endif // GOB_BACKBUFFER_H
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