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https://github.com/libretro/scummvm.git
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a4741a7268
calcPixelDiffNosqrt is the only function with a valid implementation. The rest of the templated functions just have skeleton templates (for now).
86 lines
3.3 KiB
C++
86 lines
3.3 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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#ifndef GRAPHICS_SCALER_EDGE_H
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#define GRAPHICS_SCALER_EDGE_H
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#include "graphics/scalerplugin.h"
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class EdgePlugin : public ScalerPluginObject {
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public:
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EdgePlugin();
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virtual void initialize(Graphics::PixelFormat format);
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virtual void deinitialize();
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virtual void scale(const uint8 *srcPtr, uint32 srcPitch,
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uint8 *dstPtr, uint32 dstPitch, int width, int height, int x, int y);
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virtual uint increaseFactor();
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virtual uint decreaseFactor();
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virtual uint getFactor() const { return _factor; }
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virtual bool canDrawCursor() const { return false; }
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virtual uint extraPixels() const { return 1; }
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virtual const char *getName() const;
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virtual const char *getPrettyName() const;
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private:
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int16* chooseGreyscale(uint16 *pixels);
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template<typename ColorMask, typename Pixel>
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int32 calcPixelDiffNosqrt(Pixel pixel1, Pixel pixel2);
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int findPrincipleAxis(uint16 *pixels, int16 *diffs, int16 *bplane,
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int8 *sim,
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int32 *return_angle);
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int checkArrows(int best_dir, uint16 *pixels, int8 *sim, int half_flag);
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int refineDirection(char edge_type, uint16 *pixels, int16 *bptr,
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int8 *sim, double angle);
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int fixKnights(int sub_type, uint16 *pixels, int8 *sim);
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void initTables(const uint8 *srcPtr, uint32 srcPitch,
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int width, int height);
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template<typename ColorMask, typename Pixel>
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void anti_alias_grid_2x(uint8 *dptr, int dstPitch,
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uint16 *pixels, int sub_type, int16 *bptr,
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int8 *sim,
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int interpolate_2x);
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template<typename ColorMask, typename Pixel>
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void anti_alias_grid_clean_3x(uint8 *dptr, int dstPitch,
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uint16 *pixels, int sub_type, int16 *bptr);
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template<typename ColorMask, typename Pixel>
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void antiAliasPass2x(const uint8 *src, uint8 *dst,
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int w, int h, int w_new, int h_new,
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int srcPitch, int dstPitch,
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int overlay_flag,
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int interpolate_2x);
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template<typename ColorMask, typename Pixel>
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void antiAliasPass3x(const uint8 *src, uint8 *dst,
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int w, int h, int w_new, int h_new,
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int srcPitch, int dstPitch,
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int overlay_flag);
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int16 _rgbTable[65536][3]; ///< table lookup for RGB
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int16 _greyscaleTable[3][65536]; ///< greyscale tables
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int16 *_chosenGreyscale; ///< pointer to chosen greyscale table
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int16 *_bptr; ///< too awkward to pass variables
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int8 _simSum; ///< sum of similarity matrix
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int16 _greyscaleDiffs[3][8];
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int16 _bplanes[3][9];
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};
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#endif
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