101 lines
3.1 KiB
C
101 lines
3.1 KiB
C
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/***************************************************************************/
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/* */
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/* pshalgo1.h */
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/* */
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/* First (basic) Postscript hinting routines */
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/* */
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/* Copyright 2001 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 __PS_HINTER_ALGO1_H__
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#define __PS_HINTER_ALGO1_H__
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#include "pshrec.h"
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FT_BEGIN_HEADER
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typedef struct PSH1_HintRec_* PSH1_Hint;
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typedef enum
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{
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PSH1_HINT_FLAG_GHOST = PS_HINT_FLAG_GHOST,
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PSH1_HINT_FLAG_BOTTOM = PS_HINT_FLAG_BOTTOM,
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PSH1_HINT_FLAG_ACTIVE = 4
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} PSH1_Hint_Flags;
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#define psh1_hint_is_active(x) (((x)->flags & PSH1_HINT_FLAG_ACTIVE) != 0)
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#define psh1_hint_is_ghost(x) (((x)->flags & PSH1_HINT_FLAG_GHOST ) != 0)
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#define psh1_hint_activate(x) (x)->flags |= PSH1_HINT_FLAG_ACTIVE
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#define psh1_hint_deactivate(x) (x)->flags &= ~PSH1_HINT_FLAG_ACTIVE
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typedef struct PSH1_HintRec_
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{
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FT_Int org_pos;
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FT_Int org_len;
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FT_Pos cur_pos;
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FT_Pos cur_len;
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FT_UInt flags;
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PSH1_Hint parent;
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FT_Int order;
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} PSH1_HintRec;
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/* this is an interpolation zone used for strong points */
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/* weak points are interpolated according to their strong */
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/* neighbours.. */
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typedef struct PSH1_ZoneRec_
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{
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FT_Fixed scale;
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FT_Fixed delta;
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FT_Pos min;
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FT_Pos max;
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} PSH1_ZoneRec, *PSH1_Zone;
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typedef struct PSH1_Hint_TableRec_
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{
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FT_UInt max_hints;
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FT_UInt num_hints;
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PSH1_Hint hints;
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PSH1_Hint* sort;
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PSH1_Hint* sort_global;
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FT_UInt num_zones;
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PSH1_Zone zones;
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PSH1_Zone zone;
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PS_Mask_Table hint_masks;
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PS_Mask_Table counter_masks;
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} PSH1_Hint_TableRec, *PSH1_Hint_Table;
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extern FT_Error
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ps1_hints_apply( PS_Hints ps_hints,
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FT_Outline* outline,
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PSH_Globals globals );
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#ifdef DEBUG_HINTER
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extern PSH1_Hint_Table ps1_debug_hint_table;
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typedef void (*PSH1_HintFunc)( PSH1_Hint hint, FT_Bool vertical );
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extern PSH1_HintFunc ps1_debug_hint_func;
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#endif
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FT_END_HEADER
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#endif /* __PS_HINTER_FITTER_H__ */
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