kc3-lang/freetype/src/base/ftgasp.c

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• Hash : f48b60ed
  Author :
  Date : 2007-01-08T15:15:32
  

          * include/freetype/ftgasp.h, src/base/ftgasp.c: adding a
          new API FT_Get_Gasp to return entries of the GASP table
          corresponding to a given character pixel size.
  
          * src/sfnt/ttload.c: add version check for the GASP table,
          in order to be better future-proof
  
          * include/freetype/config/ftheader.h: add definition of
          FT_GASP_H, corresponding to <freetype/ftgasp.h>
  
          * src/base/rules.mk, src/base/Jamfile, modules.cfg,
          builds/win32/visualc/freetype.dsp,
          builds/win32/visualc/freetype.vcproj: Adding src/base/ftgasp.c
          to the default build
  

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• src/base/ftgasp.c

• #include <ft2build.h>
  #include FT_GASP_H
  #include FT_INTERNAL_TRUETYPE_TYPES_H
  
    FT_EXPORT_DEF( FT_Int )
    FT_Get_Gasp( FT_Face    face,
                 FT_UInt    ppem )
    {
      FT_Int  result = FT_GASP_NO_TABLE;
  
      if ( face && FT_IS_SFNT(face) )
      {
        TT_Face  ttface = (TT_Face)face;
  
        if ( ttface->gasp.numRanges > 0 )
        {
          TT_GaspRange  range     = ttface->gasp.gaspRanges;
          TT_GaspRange  range_end = range + ttface->gasp.numRanges;
  
          while ( ppem > range->maxPPEM )
          {
            range++;
            if ( range >= range_end )
              goto Exit;
          }
  
          result = range->gaspFlag;
  
          /* ensure we don't have spurious bits */
          if ( ttface->gasp.version == 0 )
            result &= 3;
        }
      }
    Exit:
      return result;
    }
  
  
  

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