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- /***************************************************************************/
- /* */
- /* pshalgo1.h */
- /* */
- /* PostScript hinting algorithm 1 (specification). */
- /* */
- /* Copyright 2001 by */
- /* David Turner, Robert Wilhelm, and Werner Lemberg. */
- /* */
- /* This file is part of the FreeType project, and may only be used, */
- /* modified, and distributed under the terms of the FreeType project */
- /* license, LICENSE.TXT. By continuing to use, modify, or distribute */
- /* this file you indicate that you have read the license and */
- /* understand and accept it fully. */
- /* */
- /***************************************************************************/
- #ifndef __PSHALGO1_H__
- #define __PSHALGO1_H__
- #include "pshrec.h"
- FT_BEGIN_HEADER
- typedef struct PSH1_HintRec_* PSH1_Hint;
- typedef enum
- {
- PSH1_HINT_FLAG_GHOST = PS_HINT_FLAG_GHOST,
- PSH1_HINT_FLAG_BOTTOM = PS_HINT_FLAG_BOTTOM,
- PSH1_HINT_FLAG_ACTIVE = 4
- } PSH1_Hint_Flags;
- #define psh1_hint_is_active( x ) \
- ( ( (x)->flags & PSH1_HINT_FLAG_ACTIVE ) != 0 )
- #define psh1_hint_is_ghost( x ) \
- ( ( (x)->flags & PSH1_HINT_FLAG_GHOST ) != 0 )
- #define psh1_hint_activate( x ) (x)->flags |= PSH1_HINT_FLAG_ACTIVE
- #define psh1_hint_deactivate( x ) (x)->flags &= ~PSH1_HINT_FLAG_ACTIVE
- typedef struct PSH1_HintRec_
- {
- FT_Int org_pos;
- FT_Int org_len;
- FT_Pos cur_pos;
- FT_Pos cur_len;
- FT_UInt flags;
- PSH1_Hint parent;
- FT_Int order;
- } PSH1_HintRec;
- /* this is an interpolation zone used for strong points; */
- /* weak points are interpolated according to their strong */
- /* neighbours */
- typedef struct PSH1_ZoneRec_
- {
- FT_Fixed scale;
- FT_Fixed delta;
- FT_Pos min;
- FT_Pos max;
- } PSH1_ZoneRec, *PSH1_Zone;
- typedef struct PSH1_Hint_TableRec_
- {
- FT_UInt max_hints;
- FT_UInt num_hints;
- PSH1_Hint hints;
- PSH1_Hint* sort;
- PSH1_Hint* sort_global;
- FT_UInt num_zones;
- PSH1_Zone zones;
- PSH1_Zone zone;
- PS_Mask_Table hint_masks;
- PS_Mask_Table counter_masks;
- } PSH1_Hint_TableRec, *PSH1_Hint_Table;
- extern FT_Error
- ps1_hints_apply( PS_Hints ps_hints,
- FT_Outline* outline,
- PSH_Globals globals,
- FT_Render_Mode hint_mode );
- #ifdef DEBUG_HINTER
- extern PSH1_Hint_Table ps1_debug_hint_table;
- typedef void
- (*PSH1_HintFunc)( PSH1_Hint hint,
- FT_Bool vertical );
- extern PSH1_HintFunc ps1_debug_hint_func;
- #endif
- FT_END_HEADER
- #endif /* __PSHALGO1_H__ */
- /* END */
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