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87 lines
1.9 KiB
C++
87 lines
1.9 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
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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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*
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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, 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 BLADERUNNER_ZBUFFER_H
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#define BLADERUNNER_ZBUFFER_H
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#include "bladerunner/bladerunner.h"
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#include "common/rect.h"
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namespace BladeRunner {
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#define MAX_DIRTY_RECTS 20
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class ZBufferDirtyRects {
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int _count;
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Common::Rect _rects[MAX_DIRTY_RECTS];
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public:
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ZBufferDirtyRects() :
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_count(0)
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{}
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void reset();
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bool add(Common::Rect rect);
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void extendExisting();
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int getCount() const;
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bool popRect(Common::Rect *rect);
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};
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class ZBuffer {
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int _width;
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int _height;
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uint16 *_zbuf1;
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uint16 *_zbuf2;
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ZBufferDirtyRects *_dirtyRects;
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bool _disabled;
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public:
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ZBuffer();
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~ZBuffer();
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void init(int width, int height);
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bool decodeData(const uint8 *data, int size);
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uint16 *getData() const;
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uint16 getZValue(int x, int y) const;
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private:
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void blit(Common::Rect rect);
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public:
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void mark(Common::Rect rect);
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void clean();
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void resetUpdates();
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// Only called from Scene::resume which is not yet implemented
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void disable();
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void enable();
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};
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} // End of namespace BladeRunner
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#endif
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