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- /***************************************************************************/
- /* */
- /* pshglob.h */
- /* */
- /* PostScript hinter global hinting management. */
- /* */
- /* Copyright 2001, 2002 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 FT_FREETYPE_H
- #include FT_INTERNAL_POSTSCRIPT_HINTS_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 );
- /* 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 );
- /* 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 */
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