kc3-lang/freetype/src/type1/t1objs.c

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• Hash : 1f7f0e87
  Author :
  Date : 2001-06-06T17:30:41
  

  Complete redesign of error codes. Please check ftmoderr.h for more details. * include/freetype/internal/cfferrs.h, include/freetype/internal/tterrors.h, include/freetype/internal/t1errors.h: Removed. Replaced with files local to the module. All extra error codes have been moved to `fterrors.h'. * src/sfnt/ttpost.h: Move error codes to `fterrors.h'. * src/autohint/aherrors.h, src/cache/ftcerror.h, src/cff/cfferrs.h, src/cid/ciderrs.h, src/pcf/pcferror.h, src/psaux/psauxerr.h, src/psnames/psnamerr.h, src/raster/rasterrs.h, src/sfnt/sferrors.h, src/smooth/ftsmerrs.h, src/truetype/tterrors.h, src/type1/t1errors.h, src/winfonts/fnterrs.h: New files defining the error names for the module it belongs to. * include/freetype/ftmoderr.h: New file, defining the module error offsets. Its structure is similar to `fterrors.h'. * include/freetype/fterrors.h (FT_NOERRORDEF): New macro. (FT_ERRORDEF): Redefined to use module error offsets. All internal error codes are now public; unused error codes have been removed, some are new. * include/freetype/config/ftheader.h (FT_MODULE_ERRORS_H): New macro. * include/freetype/config/ftoption.h (FT_CONFIG_OPTION_USE_MODULE_ERRORS): New macro. All other source files have been updated to use the new error codes; some already existing (internal) error codes local to a module have been renamed to give them the same name as in the base module. All make files have been updated to include the local error files. * src/cid/cidtokens.h: Replaced with... * src/cid/cidtoken.h: This file for 8+3 consistency. * src/raster/ftraster.c: Use macros for header file names.

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• src/type1/t1objs.c

• /***************************************************************************/
  /*                                                                         */
  /*  t1objs.c                                                               */
  /*                                                                         */
  /*    Type 1 objects manager (body).                                       */
  /*                                                                         */
  /*  Copyright 1996-2000 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.                                        */
  /*                                                                         */
  /***************************************************************************/
  
  
  #include <ft2build.h>
  #include FT_INTERNAL_DEBUG_H
  #include FT_INTERNAL_STREAM_H
  
  #include <string.h>         /* strcmp() */
  
  #include "t1gload.h"
  #include "t1load.h"
  
  #include "t1errors.h"
  
  #ifndef T1_CONFIG_OPTION_NO_AFM
  #include "t1afm.h"
  #endif
  
  #include FT_INTERNAL_POSTSCRIPT_NAMES_H
  #include FT_INTERNAL_POSTSCRIPT_AUX_H
  
  
    /*************************************************************************/
    /*                                                                       */
    /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
    /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
    /* messages during execution.                                            */
    /*                                                                       */
  #undef  FT_COMPONENT
  #define FT_COMPONENT  trace_t1objs
  
  
    /*************************************************************************/
    /*                                                                       */
    /*                            FACE  FUNCTIONS                            */
    /*                                                                       */
    /*************************************************************************/
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Function>                                                            */
    /*    T1_Done_Face                                                       */
    /*                                                                       */
    /* <Description>                                                         */
    /*    The face object destructor.                                        */
    /*                                                                       */
    /* <Input>                                                               */
    /*    face :: A typeless pointer to the face object to destroy.          */
    /*                                                                       */
    FT_LOCAL_DEF
    void  T1_Done_Face( T1_Face  face )
    {
      FT_Memory  memory;
      T1_Font*   type1 = &face->type1;
  
  
      if ( face )
      {
        memory = face->root.memory;
  
  #ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT
        /* release multiple masters information */
        T1_Done_Blend( face );
        face->blend = 0;
  #endif
  
        /* release font info strings */
        {
          T1_FontInfo*  info = &type1->font_info;
  
  
          FREE( info->version );
          FREE( info->notice );
          FREE( info->full_name );
          FREE( info->family_name );
          FREE( info->weight );
        }
  
        /* release top dictionary */
        FREE( type1->charstrings_len );
        FREE( type1->charstrings );
        FREE( type1->glyph_names );
  
        FREE( type1->subrs );
        FREE( type1->subrs_len );
  
        FREE( type1->subrs_block );
        FREE( type1->charstrings_block );
        FREE( type1->glyph_names_block );
  
        FREE( type1->encoding.char_index );
        FREE( type1->encoding.char_name );
        FREE( type1->font_name );
  
  #ifndef T1_CONFIG_OPTION_NO_AFM
        /* release afm data if present */
        if ( face->afm_data )
          T1_Done_AFM( memory, (T1_AFM*)face->afm_data );
  #endif
  
        /* release unicode map, if any */
        FREE( face->unicode_map.maps );
        face->unicode_map.num_maps = 0;
  
        face->root.family_name = 0;
        face->root.style_name  = 0;
      }
    }
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Function>                                                            */
    /*    T1_Init_Face                                                       */
    /*                                                                       */
    /* <Description>                                                         */
    /*    The face object constructor.                                       */
    /*                                                                       */
    /* <Input>                                                               */
    /*    stream     ::  input stream where to load font data.               */
    /*                                                                       */
    /*    face_index :: The index of the font face in the resource.          */
    /*                                                                       */
    /*    num_params :: Number of additional generic parameters.  Ignored.   */
    /*                                                                       */
    /*    params     :: Additional generic parameters.  Ignored.             */
    /*                                                                       */
    /* <InOut>                                                               */
    /*    face       :: The face record to build.                            */
    /*                                                                       */
    /* <Return>                                                              */
    /*    FreeType error code.  0 means success.                             */
    /*                                                                       */
    FT_LOCAL_DEF
    FT_Error  T1_Init_Face( FT_Stream      stream,
                            T1_Face        face,
                            FT_Int         face_index,
                            FT_Int         num_params,
                            FT_Parameter*  params )
    {
      FT_Error            error;
      PSNames_Interface*  psnames;
      PSAux_Interface*    psaux;
  
      FT_UNUSED( num_params );
      FT_UNUSED( params );
      FT_UNUSED( face_index );
      FT_UNUSED( stream );
  
  
      face->root.num_faces = 1;
  
      psnames = (PSNames_Interface*)face->psnames;
      if ( !psnames )
      {
        psnames = (PSNames_Interface*)
                  FT_Get_Module_Interface( FT_FACE_LIBRARY( face ), "psnames" );
  
        face->psnames = psnames;
      }
  
      psaux = (PSAux_Interface*)face->psaux;
      if ( !psaux )
      {
        psaux = (PSAux_Interface*)
                FT_Get_Module_Interface( FT_FACE_LIBRARY( face ), "psaux" );
  
        face->psaux = psaux;
      }
  
      /* open the tokenizer, this will also check the font format */
      error = T1_Open_Face( face );
      if ( error )
        goto Exit;
  
      /* if we just wanted to check the format, leave successfully now */
      if ( face_index < 0 )
        goto Exit;
  
      /* check the face index */
      if ( face_index != 0 )
      {
        FT_ERROR(( "T1_Init_Face: invalid face index\n" ));
        error = T1_Err_Invalid_Argument;
        goto Exit;
      }
  
      /* Now, load the font program into the face object */
  
      /* Init the face object fields */
      /* Now set up root face fields */
      {
        FT_Face  root = (FT_Face)&face->root;
  
  
        root->num_glyphs   = face->type1.num_glyphs;
        root->num_charmaps = 1;
  
        root->face_index = face_index;
        root->face_flags = FT_FACE_FLAG_SCALABLE;
  
        root->face_flags |= FT_FACE_FLAG_HORIZONTAL;
  
        root->face_flags |= FT_FACE_FLAG_GLYPH_NAMES;
  
        if ( face->type1.font_info.is_fixed_pitch )
          root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
  
        if ( face->blend )
          root->face_flags |= FT_FACE_FLAG_MULTIPLE_MASTERS;
  
        /* XXX: TODO -- add kerning with .afm support */
  
        /* get style name -- be careful, some broken fonts only */
        /* have a `/FontName' dictionary entry!                 */
        root->family_name = face->type1.font_info.family_name;
        if ( root->family_name )
        {
          char*  full   = face->type1.font_info.full_name;
          char*  family = root->family_name;
  
  
          while ( *family && *full == *family )
          {
            family++;
            full++;
          }
  
          root->style_name = ( *full == ' ' ? full + 1
                                            : (char *)"Regular" );
        }
        else
        {
          /* do we have a `/FontName'? */
          if ( face->type1.font_name )
          {
            root->family_name = face->type1.font_name;
            root->style_name  = (char *)"Regular";
          }
        }
  
        /* compute style flags */
        root->style_flags = 0;
        if ( face->type1.font_info.italic_angle )
          root->style_flags |= FT_STYLE_FLAG_ITALIC;
        if ( face->type1.font_info.weight )
        {
          if ( !strcmp( face->type1.font_info.weight, "Bold"  ) ||
               !strcmp( face->type1.font_info.weight, "Black" ) )
            root->style_flags |= FT_STYLE_FLAG_BOLD;
        }
  
        /* no embedded bitmap support */
        root->num_fixed_sizes = 0;
        root->available_sizes = 0;
  
        root->bbox = face->type1.font_bbox;
  
        /* Set units_per_EM if we didn't set it in parse_font_matrix. */
        if ( !root->units_per_EM )
          root->units_per_EM = 1000;
  
        root->ascender  = (FT_Short)( face->type1.font_bbox.yMax >> 16 );
        root->descender = (FT_Short)( face->type1.font_bbox.yMin >> 16 );
        root->height    = ( ( root->ascender - root->descender ) * 12 ) / 10;
  
        /* now compute the maximum advance width */
        root->max_advance_width =
          (FT_Short)( face->type1.font_bbox.xMax >> 16 );
        {
          FT_Int  max_advance;
  
  
          error = T1_Compute_Max_Advance( face, &max_advance );
  
          /* in case of error, keep the standard width */
          if ( !error )
            root->max_advance_width = max_advance;
          else
            error = 0;   /* clear error */
        }
  
        root->max_advance_height = root->height;
  
        root->underline_position  = face->type1.font_info.underline_position;
        root->underline_thickness = face->type1.font_info.underline_thickness;
  
        root->internal->max_points   = 0;
        root->internal->max_contours = 0;
      }
  
      /* charmap support -- synthetize unicode charmap if possible */
      {
        FT_Face     root    = &face->root;
        FT_CharMap  charmap = face->charmaprecs;
  
  
        /* synthesize a Unicode charmap if there is support in the `PSNames' */
        /* module                                                            */
        if ( psnames )
        {
          if ( psnames->unicode_value )
          {
            error = psnames->build_unicodes(
                      root->memory,
                      face->type1.num_glyphs,
                      (const char**)face->type1.glyph_names,
                      &face->unicode_map );
            if ( !error )
            {
              root->charmap        = charmap;
              charmap->face        = (FT_Face)face;
              charmap->encoding    = ft_encoding_unicode;
              charmap->platform_id = 3;
              charmap->encoding_id = 1;
              charmap++;
            }
  
            /* simply clear the error in case of failure (which really) */
            /* means that out of memory or no unicode glyph names       */
            error = T1_Err_Ok;
          }
        }
  
        /* now, support either the standard, expert, or custom encoding */
        charmap->face        = (FT_Face)face;
        charmap->platform_id = 7;  /* a new platform id for Adobe fonts? */
  
        switch ( face->type1.encoding_type )
        {
        case t1_encoding_standard:
          charmap->encoding    = ft_encoding_adobe_standard;
          charmap->encoding_id = 0;
          break;
  
        case t1_encoding_expert:
          charmap->encoding    = ft_encoding_adobe_expert;
          charmap->encoding_id = 1;
          break;
  
        default:
          charmap->encoding    = ft_encoding_adobe_custom;
          charmap->encoding_id = 2;
          break;
        }
  
        root->charmaps     = face->charmaps;
        root->num_charmaps = charmap - face->charmaprecs + 1;
        face->charmaps[0]  = &face->charmaprecs[0];
        face->charmaps[1]  = &face->charmaprecs[1];
      }
  
    Exit:
      return error;
    }
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Function>                                                            */
    /*    T1_Init_Driver                                                     */
    /*                                                                       */
    /* <Description>                                                         */
    /*    Initializes a given Type 1 driver object.                          */
    /*                                                                       */
    /* <Input>                                                               */
    /*    driver :: A handle to the target driver object.                    */
    /*                                                                       */
    /* <Return>                                                              */
    /*    FreeType error code.  0 means success.                             */
    /*                                                                       */
    FT_LOCAL_DEF
    FT_Error  T1_Init_Driver( T1_Driver  driver )
    {
      FT_UNUSED( driver );
  
      return T1_Err_Ok;
    }
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Function>                                                            */
    /*    T1_Done_Driver                                                     */
    /*                                                                       */
    /* <Description>                                                         */
    /*    Finalizes a given Type 1 driver.                                   */
    /*                                                                       */
    /* <Input>                                                               */
    /*    driver  :: A handle to the target Type 1 driver.                   */
    /*                                                                       */
    FT_LOCAL_DEF
    void  T1_Done_Driver( T1_Driver  driver )
    {
      FT_UNUSED( driver );
    }
  
  
  /* END */
  

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