kc3-lang/freetype/src/cff/cf2ft.h

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• Hash : 77c39b1d
  Author :
  Date : 2013-05-04T18:04:07
  

  [cff] Make Adobe CFF engine work correctly on 64bit hosts. Reported by numerous people on the `freetype-devel' list. Without this fix, glyphs aren't properly aligned on a common baseline. On 64bit systems, `FT_Pos' expands to `long int', having a width of 64bit. `CF2_Fixed' expands to `int' which is normally 32bit wide on 64bit hosts also. Wrong casts filled up the blues arrays with incorrect values. Note that all blues values are accessed with the `cf2_blueToFixed' macro which handles the 64bit to 32bit conversion. * src/cff/cf2ft.h (cf2_getBlueValues, cf2_getOtherBlues, cf2_getFamilyBlues, cf2_getFamilyOtherBlues): Use `FT_Pos' for `data', not `CF2_Fixed'. * src/cff/cf2ft.c (cf2_getBlueValues, cf2_getOtherBlues, cf2_getFamilyBlues, cf2_getFamilyOtherBlues): Updated. * src/cff/cf2blues.c (cf2_blues_init): Updated.

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• src/cff/cf2ft.h

• /***************************************************************************/
  /*                                                                         */
  /*  cf2ft.h                                                                */
  /*                                                                         */
  /*    FreeType Glue Component to Adobe's Interpreter (specification).      */
  /*                                                                         */
  /*  Copyright 2013 Adobe Systems Incorporated.                             */
  /*                                                                         */
  /*  This software, and all works of authorship, whether in source or       */
  /*  object code form as indicated by the copyright notice(s) included      */
  /*  herein (collectively, the "Work") is made available, and may only be   */
  /*  used, modified, and distributed under the FreeType Project License,    */
  /*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
  /*  FreeType Project License, each contributor to the Work hereby grants   */
  /*  to any individual or legal entity exercising permissions granted by    */
  /*  the FreeType Project License and this section (hereafter, "You" or     */
  /*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
  /*  royalty-free, irrevocable (except as stated in this section) patent    */
  /*  license to make, have made, use, offer to sell, sell, import, and      */
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  /*  patent claims licensable by such contributor that are necessarily      */
  /*  infringed by their contribution(s) alone or by combination of their    */
  /*  contribution(s) with the Work to which such contribution(s) was        */
  /*  submitted.  If You institute patent litigation against any entity      */
  /*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
  /*  the Work or a contribution incorporated within the Work constitutes    */
  /*  direct or contributory patent infringement, then any patent licenses   */
  /*  granted to You under this License for that Work shall terminate as of  */
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  /*                                                                         */
  /*  By using, modifying, or distributing the Work you indicate that you    */
  /*  have read and understood the terms and conditions of the               */
  /*  FreeType Project License as well as those provided in this section,    */
  /*  and you accept them fully.                                             */
  /*                                                                         */
  /***************************************************************************/
  
  
  #ifndef __CF2FT_H__
  #define __CF2FT_H__
  
  
  #include "cf2types.h"
  
  
    /* TODO: disable asserts for now */
  #define CF2_NDEBUG
  
  
  #include FT_SYSTEM_H
  
  #include "cf2glue.h"
  #include "cffgload.h"    /* for CFF_Decoder */
  
  
  FT_BEGIN_HEADER
  
  
    FT_LOCAL( FT_Error )
    cf2_decoder_parse_charstrings( CFF_Decoder*  decoder,
                                   FT_Byte*      charstring_base,
                                   FT_ULong      charstring_len );
  
    FT_LOCAL( CFF_SubFont )
    cf2_getSubfont( CFF_Decoder*  decoder );
  
  
    FT_LOCAL( CF2_Fixed )
    cf2_getPpemY( CFF_Decoder*  decoder );
    FT_LOCAL( CF2_Fixed )
    cf2_getStdVW( CFF_Decoder*  decoder );
    FT_LOCAL( CF2_Fixed )
    cf2_getStdHW( CFF_Decoder*  decoder );
  
    FT_LOCAL( void )
    cf2_getBlueMetrics( CFF_Decoder*  decoder,
                        CF2_Fixed*    blueScale,
                        CF2_Fixed*    blueShift,
                        CF2_Fixed*    blueFuzz );
    FT_LOCAL( void )
    cf2_getBlueValues( CFF_Decoder*  decoder,
                       size_t*       count,
                       FT_Pos*      *data );
    FT_LOCAL( void )
    cf2_getOtherBlues( CFF_Decoder*  decoder,
                       size_t*       count,
                       FT_Pos*      *data );
    FT_LOCAL( void )
    cf2_getFamilyBlues( CFF_Decoder*  decoder,
                        size_t*       count,
                        FT_Pos*      *data );
    FT_LOCAL( void )
    cf2_getFamilyOtherBlues( CFF_Decoder*  decoder,
                             size_t*       count,
                             FT_Pos*      *data );
  
    FT_LOCAL( CF2_Int )
    cf2_getLanguageGroup( CFF_Decoder*  decoder );
  
    FT_LOCAL( CF2_Int )
    cf2_initGlobalRegionBuffer( CFF_Decoder*  decoder,
                                CF2_UInt      idx,
                                CF2_Buffer    buf );
    FT_LOCAL( FT_Error )
    cf2_getSeacComponent( CFF_Decoder*  decoder,
                          CF2_UInt      code,
                          CF2_Buffer    buf );
    FT_LOCAL( void )
    cf2_freeSeacComponent( CFF_Decoder*  decoder,
                           CF2_Buffer    buf );
    FT_LOCAL( CF2_Int )
    cf2_initLocalRegionBuffer( CFF_Decoder*  decoder,
                               CF2_UInt      idx,
                               CF2_Buffer    buf );
  
    FT_LOCAL( CF2_Fixed )
    cf2_getDefaultWidthX( CFF_Decoder*  decoder );
    FT_LOCAL( CF2_Fixed )
    cf2_getNominalWidthX( CFF_Decoder*  decoder );
  
  
    /*
     * FreeType client outline
     *
     * process output from the charstring interpreter
     */
    typedef struct  CF2_OutlineRec_
    {
      CF2_OutlineCallbacksRec  root;        /* base class must be first */
      CFF_Decoder*             decoder;
  
    } CF2_OutlineRec, *CF2_Outline;
  
  
    FT_LOCAL( void )
    cf2_outline_reset( CF2_Outline  outline );
    FT_LOCAL( void )
    cf2_outline_close( CF2_Outline  outline );
  
  
  FT_END_HEADER
  
  
  #endif /* __CF2FT_H__ */
  
  
  /* END */
  

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