ref: cc90307d7140867479428bc21861240cfe66cfec
dir: /src/pshinter/pshglob.h/
/**************************************************************************** * * pshglob.h * * PostScript hinter global hinting management. * * Copyright (C) 2001-2021 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 PSHGLOB_H_ #define PSHGLOB_H_ #include <freetype/freetype.h> #include <freetype/internal/pshints.h> FT_BEGIN_HEADER /*************************************************************************/ /*************************************************************************/ /***** *****/ /***** GLOBAL HINTS INTERNALS *****/ /***** *****/ /*************************************************************************/ /*************************************************************************/ /************************************************************************** * * @constant: * PS_GLOBALS_MAX_BLUE_ZONES * * @description: * The maximum number of blue zones in a font global hints structure. * See @PS_Globals_BluesRec. */ #define PS_GLOBALS_MAX_BLUE_ZONES 16 /************************************************************************** * * @constant: * PS_GLOBALS_MAX_STD_WIDTHS * * @description: * The maximum number of standard and snap widths in either the * horizontal or vertical direction. See @PS_Globals_WidthsRec. */ #define PS_GLOBALS_MAX_STD_WIDTHS 16 /* standard and snap width */ typedef struct PSH_WidthRec_ { FT_Int org; FT_Pos cur; FT_Pos fit; } PSH_WidthRec, *PSH_Width; /* standard and snap widths table */ typedef struct PSH_WidthsRec_ { FT_UInt count; PSH_WidthRec widths[PS_GLOBALS_MAX_STD_WIDTHS]; } PSH_WidthsRec, *PSH_Widths; typedef struct PSH_DimensionRec_ { PSH_WidthsRec stdw; FT_Fixed scale_mult; FT_Fixed scale_delta; } PSH_DimensionRec, *PSH_Dimension; /* blue zone descriptor */ typedef struct PSH_Blue_ZoneRec_ { FT_Int org_ref; FT_Int org_delta; FT_Int org_top; FT_Int org_bottom; FT_Pos cur_ref; FT_Pos cur_delta; FT_Pos cur_bottom; FT_Pos cur_top; } PSH_Blue_ZoneRec, *PSH_Blue_Zone; typedef struct PSH_Blue_TableRec_ { FT_UInt count; PSH_Blue_ZoneRec zones[PS_GLOBALS_MAX_BLUE_ZONES]; } PSH_Blue_TableRec, *PSH_Blue_Table; /* blue zones table */ typedef struct PSH_BluesRec_ { PSH_Blue_TableRec normal_top; PSH_Blue_TableRec normal_bottom; PSH_Blue_TableRec family_top; PSH_Blue_TableRec family_bottom; FT_Fixed blue_scale; FT_Int blue_shift; FT_Int blue_threshold; FT_Int blue_fuzz; FT_Bool no_overshoots; } PSH_BluesRec, *PSH_Blues; /* font globals. */ /* dimension 0 => X coordinates + vertical hints/stems */ /* dimension 1 => Y coordinates + horizontal hints/stems */ typedef struct PSH_GlobalsRec_ { FT_Memory memory; PSH_DimensionRec dimension[2]; PSH_BluesRec blues; } PSH_GlobalsRec; #define PSH_BLUE_ALIGN_NONE 0 #define PSH_BLUE_ALIGN_TOP 1 #define PSH_BLUE_ALIGN_BOT 2 typedef struct PSH_AlignmentRec_ { int align; FT_Pos align_top; FT_Pos align_bot; } PSH_AlignmentRec, *PSH_Alignment; FT_LOCAL( void ) psh_globals_funcs_init( PSH_Globals_FuncsRec* funcs ); #if 0 /* snap a stem width to fitter coordinates. `org_width' is in font */ /* units. The result is in device pixels (26.6 format). */ FT_LOCAL( FT_Pos ) psh_dimension_snap_width( PSH_Dimension dimension, FT_Int org_width ); #endif FT_LOCAL( void ) psh_globals_set_scale( PSH_Globals globals, FT_Fixed x_scale, FT_Fixed y_scale, FT_Fixed x_delta, FT_Fixed y_delta ); /* snap a stem to one or two blue zones */ FT_LOCAL( void ) psh_blues_snap_stem( PSH_Blues blues, FT_Int stem_top, FT_Int stem_bot, PSH_Alignment alignment ); /* */ #ifdef DEBUG_HINTER extern PSH_Globals ps_debug_globals; #endif FT_END_HEADER #endif /* PSHGLOB_H_ */ /* END */