kc3-lang/freetype/src/cff/cffobjs.h

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• Hash : 06474c3e
  Author :
  Date : 2013-04-13T18:53:28
  

  [cff] Add a new Type 2 interpreter and hinter. This work, written by Dave Arnold <darnold@adobe.com> and fully integrated into FreeType by me, is a donation by Adobe in collaboration with Google. It is vastly superior to the old CFF engine, and it will replace it soon. Right now, it is still off by default, and you have to explicitly select it using the new `hinting-engine' property of the cff driver. For convenience, (most of) the new files are committed separately. * include/freetype/config/ftheader.h (FT_CFF_DRIVER_H): New macro. * include/freetype/ftcffdrv.h: New file to access CFF driver properties. * include/freetype/fterrdef.h (FT_Err_Glyph_Too_Big): New error code. * include/freetype/internal/fttrace.h: Add `cf2blues', `cf2hints', and `cf2interp'. * src/cff/cffgload.h (CFF_SubFont): New member `current_subfont'. * src/cff/cffobjs.h (CFF_DriverRec): New members `hinting_engine' and `no_stem_darkening'. * src/cff/cfftypes.h (CFF_FontRec): New member `cf2_instance'. * src/cff/cff.c: Include new files. * src/cff/cffdrivr.c (cff_property_set, cff_property_get): Handle `hinting-engine' and `no-stem-darkening' properties (only the Adobe engine listens to them). * src/cff/cffgload.c: Include `cf2ft.h'. (cff_decoder_prepare): Initialize `current_subfont'. (cff_build_add_point): Handle Adobe engine which uses 16.16 coordinates. (cff_slot_load): Handle FT_LOAD_NO_SCALE and FT_LOAD_NO_HINTING separately. Choose rendering engine based on `hinting_engine' property. * src/cff/cffload.c (cff_font_done): Call finalizer of the Adobe engine. * src/cff/cffobjs.c: Include FT_CFF_DRIVER_H. (cff_driver_init): Set default property values. * src/cff/rules.mk (CFF_DRV_SRC, CFF_DRV_H): Add new files. * src/cff/cf2*.*: New files, containing the Adobe engine.

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• src/cff/cffobjs.h

• /***************************************************************************/
  /*                                                                         */
  /*  cffobjs.h                                                              */
  /*                                                                         */
  /*    OpenType objects manager (specification).                            */
  /*                                                                         */
  /*  Copyright 1996-2004, 2006-2008, 2013 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 __CFFOBJS_H__
  #define __CFFOBJS_H__
  
  
  #include <ft2build.h>
  #include FT_INTERNAL_OBJECTS_H
  #include "cfftypes.h"
  #include FT_INTERNAL_TRUETYPE_TYPES_H
  #include FT_SERVICE_POSTSCRIPT_CMAPS_H
  #include FT_INTERNAL_POSTSCRIPT_HINTS_H
  
  
  FT_BEGIN_HEADER
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Type>                                                                */
    /*    CFF_Driver                                                         */
    /*                                                                       */
    /* <Description>                                                         */
    /*    A handle to an OpenType driver object.                             */
    /*                                                                       */
    typedef struct CFF_DriverRec_*  CFF_Driver;
  
    typedef TT_Face  CFF_Face;
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Type>                                                                */
    /*    CFF_Size                                                           */
    /*                                                                       */
    /* <Description>                                                         */
    /*    A handle to an OpenType size object.                               */
    /*                                                                       */
    typedef struct  CFF_SizeRec_
    {
      FT_SizeRec  root;
      FT_ULong    strike_index;    /* 0xFFFFFFFF to indicate invalid */
  
    } CFF_SizeRec, *CFF_Size;
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Type>                                                                */
    /*    CFF_GlyphSlot                                                      */
    /*                                                                       */
    /* <Description>                                                         */
    /*    A handle to an OpenType glyph slot object.                         */
    /*                                                                       */
    typedef struct  CFF_GlyphSlotRec_
    {
      FT_GlyphSlotRec  root;
  
      FT_Bool          hint;
      FT_Bool          scaled;
  
      FT_Fixed         x_scale;
      FT_Fixed         y_scale;
  
    } CFF_GlyphSlotRec, *CFF_GlyphSlot;
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Type>                                                                */
    /*    CFF_Internal                                                       */
    /*                                                                       */
    /* <Description>                                                         */
    /*    The interface to the `internal' field of `FT_Size'.                */
    /*                                                                       */
    typedef struct  CFF_InternalRec_
    {
      PSH_Globals  topfont;
      PSH_Globals  subfonts[CFF_MAX_CID_FONTS];
  
    } CFF_InternalRec, *CFF_Internal;
  
  
    /*************************************************************************/
    /*                                                                       */
    /* Subglyph transformation record.                                       */
    /*                                                                       */
    typedef struct  CFF_Transform_
    {
      FT_Fixed    xx, xy;     /* transformation matrix coefficients */
      FT_Fixed    yx, yy;
      FT_F26Dot6  ox, oy;     /* offsets        */
  
    } CFF_Transform;
  
  
    /***********************************************************************/
    /*                                                                     */
    /* CFF driver class.                                                   */
    /*                                                                     */
    typedef struct  CFF_DriverRec_
    {
      FT_DriverRec  root;
  
      FT_UInt  hinting_engine;
      FT_Bool  no_stem_darkening;
  
    } CFF_DriverRec;
  
  
    FT_LOCAL( FT_Error )
    cff_size_init( FT_Size  size );           /* CFF_Size */
  
    FT_LOCAL( void )
    cff_size_done( FT_Size  size );           /* CFF_Size */
  
    FT_LOCAL( FT_Error )
    cff_size_request( FT_Size          size,
                      FT_Size_Request  req );
  
  #ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
  
    FT_LOCAL( FT_Error )
    cff_size_select( FT_Size   size,
                     FT_ULong  strike_index );
  
  #endif
  
    FT_LOCAL( void )
    cff_slot_done( FT_GlyphSlot  slot );
  
    FT_LOCAL( FT_Error )
    cff_slot_init( FT_GlyphSlot  slot );
  
  
    /*************************************************************************/
    /*                                                                       */
    /* Face functions                                                        */
    /*                                                                       */
    FT_LOCAL( FT_Error )
    cff_face_init( FT_Stream      stream,
                   FT_Face        face,           /* CFF_Face */
                   FT_Int         face_index,
                   FT_Int         num_params,
                   FT_Parameter*  params );
  
    FT_LOCAL( void )
    cff_face_done( FT_Face  face );               /* CFF_Face */
  
  
    /*************************************************************************/
    /*                                                                       */
    /* Driver functions                                                      */
    /*                                                                       */
    FT_LOCAL( FT_Error )
    cff_driver_init( FT_Module  module );         /* CFF_Driver */
  
    FT_LOCAL( void )
    cff_driver_done( FT_Module  module );         /* CFF_Driver */
  
  
  FT_END_HEADER
  
  #endif /* __CFFOBJS_H__ */
  
  
  /* END */
  

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