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graphics/screen.h

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00001 /* ScummVM - Graphic Adventure Engine
00002  *
00003  * ScummVM is the legal property of its developers, whose names
00004  * are too numerous to list here. Please refer to the COPYRIGHT
00005  * file distributed with this source distribution.
00006  *
00007  * This program is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU General Public License
00009  * as published by the Free Software Foundation; either version 2
00010  * of the License, or (at your option) any later version.
00011  *
00012  * This program is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00020  *
00021  */
00022 
00023 #ifndef GRAPHICS_SCREEN_H
00024 #define GRAPHICS_SCREEN_H
00025 
00026 #include "graphics/managed_surface.h"
00027 #include "graphics/pixelformat.h"
00028 #include "common/list.h"
00029 #include "common/rect.h"
00030 
00031 namespace Graphics {
00032 
00033 #define PALETTE_COUNT 256
00034 #define PALETTE_SIZE (256 * 3)
00035 
00042 class Screen : public ManagedSurface {
00043 private:
00047     Common::List<Common::Rect> _dirtyRects;
00048 private:
00052     void mergeDirtyRects();
00053 
00057     bool unionRectangle(Common::Rect &destRect, const Common::Rect &src1, const Common::Rect &src2);
00058 protected:
00063     virtual void addDirtyRect(const Common::Rect &r);
00064 public:
00065     Screen();
00066     Screen(int width, int height);
00067     Screen(int width, int height, PixelFormat pixelFormat);
00068 
00072     bool isDirty() const { return !_dirtyRects.empty(); }
00073 
00078     void makeAllDirty();
00079 
00083     virtual void clearDirtyRects() { _dirtyRects.clear(); }
00084 
00088     virtual void update();
00089 
00093     void getPalette(byte palette[PALETTE_SIZE]);
00094 
00098     void getPalette(byte *palette, uint start, uint num);
00099 
00103     void setPalette(const byte palette[PALETTE_SIZE]);
00104 
00108     void setPalette(const byte *palette, uint start, uint num);
00109 
00113     void clearPalette();
00114 };
00115 
00116 } // End of namespace Graphics
00117 
00118 #endif


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