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Viewing changes to src/3rdparty/freetype/src/pshinter/pshglob.h

  • Committer: Bazaar Package Importer
  • Author(s): Adam Conrad
  • Date: 2005-08-24 04:09:09 UTC
  • Revision ID: james.westby@ubuntu.com-20050824040909-xmxe9jfr4a0w5671
Tags: upstream-4.0.0
Import upstream version 4.0.0

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src/3rdparty/freetype/src/pshinter/pshglob.h
 
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/***************************************************************************/
 
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/*                                                                         */
 
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/*  pshglob.h                                                              */
 
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/*                                                                         */
 
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/*    PostScript hinter global hinting management.                         */
 
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/*                                                                         */
 
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/*  Copyright 2001, 2002, 2003 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 __PSHGLOB_H__
 
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#define __PSHGLOB_H__
 
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#include FT_FREETYPE_H
 
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#include FT_INTERNAL_POSTSCRIPT_HINTS_H
 
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FT_BEGIN_HEADER
 
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  /*************************************************************************/
 
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  /*************************************************************************/
 
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  /*****                                                               *****/
 
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  /*****                    GLOBAL HINTS INTERNALS                     *****/
 
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  /*****                                                               *****/
 
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  /*************************************************************************/
 
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  /*************************************************************************/
 
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  /*************************************************************************/
 
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  /*                                                                       */
 
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  /* @constant:                                                            */
 
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  /*    PS_GLOBALS_MAX_BLUE_ZONES                                          */
 
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  /*                                                                       */
 
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  /* @description:                                                         */
 
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  /*    The maximum number of blue zones in a font global hints structure. */
 
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  /*    See @PS_Globals_BluesRec.                                          */
 
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  /*                                                                       */
 
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#define PS_GLOBALS_MAX_BLUE_ZONES  16
 
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  /*************************************************************************/
 
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  /*                                                                       */
 
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  /* @constant:                                                            */
 
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  /*    PS_GLOBALS_MAX_STD_WIDTHS                                          */
 
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  /*                                                                       */
 
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  /* @description:                                                         */
 
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  /*    The maximum number of standard and snap widths in either the       */
 
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  /*    horizontal or vertical direction.  See @PS_Globals_WidthsRec.      */
 
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  /*                                                                       */
 
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#define PS_GLOBALS_MAX_STD_WIDTHS  16
 
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  /* standard and snap width */
 
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  typedef struct  PSH_WidthRec_
 
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  {
 
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    FT_Int  org;
 
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    FT_Pos  cur;
 
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    FT_Pos  fit;
 
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  } PSH_WidthRec, *PSH_Width;
 
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  /* standard and snap widths table */
 
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  typedef struct  PSH_WidthsRec_
 
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  {
 
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    FT_UInt       count;
 
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    PSH_WidthRec  widths[PS_GLOBALS_MAX_STD_WIDTHS];
 
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  } PSH_WidthsRec, *PSH_Widths;
 
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  typedef struct  PSH_DimensionRec_
 
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  {
 
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    PSH_WidthsRec  stdw;
 
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    FT_Fixed       scale_mult;
 
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    FT_Fixed       scale_delta;
 
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  } PSH_DimensionRec, *PSH_Dimension;
 
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  /* blue zone descriptor */
 
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  typedef struct  PSH_Blue_ZoneRec_
 
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  {
 
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    FT_Int  org_ref;
 
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    FT_Int  org_delta;
 
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    FT_Int  org_top;
 
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    FT_Int  org_bottom;
 
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    FT_Pos  cur_ref;
 
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    FT_Pos  cur_delta;
 
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    FT_Pos  cur_bottom;
 
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    FT_Pos  cur_top;
 
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  } PSH_Blue_ZoneRec, *PSH_Blue_Zone;
 
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  typedef struct  PSH_Blue_TableRec_
 
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  {
 
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    FT_UInt           count;
 
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    PSH_Blue_ZoneRec  zones[PS_GLOBALS_MAX_BLUE_ZONES];
 
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  } PSH_Blue_TableRec, *PSH_Blue_Table;
 
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  /* blue zones table */
 
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  typedef struct  PSH_BluesRec_
 
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  {
 
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    PSH_Blue_TableRec  normal_top;
 
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    PSH_Blue_TableRec  normal_bottom;
 
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    PSH_Blue_TableRec  family_top;
 
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    PSH_Blue_TableRec  family_bottom;
 
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    FT_Fixed           blue_scale;
 
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    FT_Int             blue_shift;
 
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    FT_Int             blue_threshold;
 
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    FT_Int             blue_fuzz;
 
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    FT_Bool            no_overshoots;
 
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  } PSH_BluesRec, *PSH_Blues;
 
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  /* font globals.                                         */
 
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  /* dimension 0 => X coordinates + vertical hints/stems   */
 
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  /* dimension 1 => Y coordinates + horizontal hints/stems */
 
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  typedef struct  PSH_GlobalsRec_
 
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  {
 
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    FT_Memory         memory;
 
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    PSH_DimensionRec  dimension[2];
 
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    PSH_BluesRec      blues;
 
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  } PSH_GlobalsRec;
 
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#define PSH_BLUE_ALIGN_NONE  0
 
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#define PSH_BLUE_ALIGN_TOP   1
 
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#define PSH_BLUE_ALIGN_BOT   2
 
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  typedef struct  PSH_AlignmentRec_
 
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  {
 
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    int     align;
 
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    FT_Pos  align_top;
 
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    FT_Pos  align_bot;
 
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  } PSH_AlignmentRec, *PSH_Alignment;
 
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  FT_LOCAL( void )
 
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  psh_globals_funcs_init( PSH_Globals_FuncsRec*  funcs );
 
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#if 0
 
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  /* snap a stem width to fitter coordinates.  `org_width' is in font */
 
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  /* units.  The result is in device pixels (26.6 format).            */
 
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  FT_LOCAL( FT_Pos )
 
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  psh_dimension_snap_width( PSH_Dimension  dimension,
 
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                            FT_Int         org_width );
 
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#endif
 
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  FT_LOCAL( FT_Error )
 
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  psh_globals_set_scale( PSH_Globals  globals,
 
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                         FT_Fixed     x_scale,
 
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                         FT_Fixed     y_scale,
 
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                         FT_Fixed     x_delta,
 
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                         FT_Fixed     y_delta );
 
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  /* snap a stem to one or two blue zones */
 
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  FT_LOCAL( void )
 
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  psh_blues_snap_stem( PSH_Blues      blues,
 
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                       FT_Int         stem_top,
 
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                       FT_Int         stem_bot,
 
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                       PSH_Alignment  alignment );
 
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  /* */
 
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#ifdef DEBUG_HINTER
 
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  extern PSH_Globals  ps_debug_globals;
 
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#endif
 
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FT_END_HEADER
 
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#endif /* __PSHGLOB_H__ */
 
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/* END */