ref: d0ab3a0dd8f6355b3603d0fb04043a9ae867639b
dir: /libfreetype/pshalgo1.h/
/***************************************************************************/ /* */ /* 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 */