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author | Paul Gilbert | 2016-03-10 21:49:42 -0500 |
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committer | Paul Gilbert | 2016-03-14 20:56:14 -0400 |
commit | 433a2daa6a42b4cca3a715d4461a893be17ef61a (patch) | |
tree | 3d25b77546baa5928bad022d6cd4f4fc7706cf98 /graphics/screen.h | |
parent | 7105fb23a84f6464149ab031a6eff3ce69bffdff (diff) | |
download | scummvm-rg350-433a2daa6a42b4cca3a715d4461a893be17ef61a.tar.gz scummvm-rg350-433a2daa6a42b4cca3a715d4461a893be17ef61a.tar.bz2 scummvm-rg350-433a2daa6a42b4cca3a715d4461a893be17ef61a.zip |
GRAPHICS: Added ManagedSurface and Screen classes
Diffstat (limited to 'graphics/screen.h')
-rw-r--r-- | graphics/screen.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/graphics/screen.h b/graphics/screen.h new file mode 100644 index 0000000000..3479ce847e --- /dev/null +++ b/graphics/screen.h @@ -0,0 +1,111 @@ +/* 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 2 + * 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, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#ifndef GRAPHICS_SCREEN_H +#define GRAPHICS_SCREEN_H + +#include "graphics/managed_surface.h" +#include "graphics/pixelformat.h" +#include "common/list.h" +#include "common/rect.h" + +namespace Graphics { + +#define PALETTE_COUNT 256 +#define PALETTE_SIZE (256 * 3) + +class Screen : virtual public ManagedSurface { +private: + /** + * List of affected areas of the screen + */ + Common::List<Common::Rect> _dirtyRects; +private: + /** + * Merges together overlapping dirty areas of the screen + */ + void mergeDirtyRects(); + + /** + * Returns the union of two dirty area rectangles + */ + bool unionRectangle(Common::Rect &destRect, const Common::Rect &src1, const Common::Rect &src2); +protected: + /** + * Adds a rectangle to the list of modified areas of the screen during the + * current frame + */ + virtual void addDirtyRect(const Common::Rect &r); +public: + Screen(); + Screen(int width, int height); + Screen(int width, int height, PixelFormat pixelFormat); + + /** + * Returns true if there are any pending screen updates + */ + bool isDirty() const { return _dirtyRects.empty(); } + + /** + * Makes the whole screen dirty + */ + void makeAllDirty(); + + /** + * Clear the current dirty rects list + */ + virtual void clearDirtyRects() { _dirtyRects.clear(); } + + /** + * Updates the screen by copying any affected areas to the system + */ + virtual void update(); + + /** + * Return the currently active palette + */ + void getPalette(byte palette[PALETTE_SIZE]); + + /** + * Return a portion of the currently active palette + */ + void getPalette(byte *palette, uint start, uint num); + + /** + * Set the palette + */ + void setPalette(const byte palette[PALETTE_SIZE]); + + /** + * Set a subsection of the palette + */ + void setPalette(const byte *palette, uint start, uint num); + + /** + * Clears the current palette, setting all entries to black + */ + void clearPalette(); +}; + +} // End of namespace Graphics + +#endif |