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/****************************************************************************
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*
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* afwarp.h
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*
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* Auto-fitter warping algorithm (specification).
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*
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* Copyright (C) 2006-2019 by
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* David Turner, Robert Wilhelm, and Werner Lemberg.
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*
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* This file is part of the FreeType project, and may only be used,
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* modified, and distributed under the terms of the FreeType project
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* license, LICENSE.TXT. By continuing to use, modify, or distribute
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* this file you indicate that you have read the license and
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* understand and accept it fully.
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*
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*/
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#ifndef AFWARP_H_
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#define AFWARP_H_
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#include "afhints.h"
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FT_BEGIN_HEADER
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#define AF_WARPER_SCALE
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#define AF_WARPER_FLOOR( x ) ( (x) & ~FT_TYPEOF( x )63 )
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#define AF_WARPER_CEIL( x ) AF_WARPER_FLOOR( (x) + 63 )
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typedef FT_Int32 AF_WarpScore;
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typedef struct AF_WarperRec_
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{
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FT_Pos x1, x2;
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FT_Pos t1, t2;
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FT_Pos x1min, x1max;
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FT_Pos x2min, x2max;
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FT_Pos w0, wmin, wmax;
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FT_Fixed best_scale;
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FT_Pos best_delta;
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AF_WarpScore best_score;
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AF_WarpScore best_distort;
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} AF_WarperRec, *AF_Warper;
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#ifdef AF_CONFIG_OPTION_USE_WARPER
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FT_LOCAL( void )
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af_warper_compute( AF_Warper warper,
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AF_GlyphHints hints,
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AF_Dimension dim,
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FT_Fixed *a_scale,
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FT_Pos *a_delta );
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#endif
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FT_END_HEADER
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#endif /* AFWARP_H_ */
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/* END */
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