/***************************************************************************//*                                                                         *//*  t42drivr.c                                                             *//*                                                                         *//*    High-level Type 42 driver interface (body).                          *//*                                                                         *//*  Copyright 2002, 2003, 2004, 2006 by Roberto Alameda.                   *//*                                                                         *//*  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.                                        *//*                                                                         *//***************************************************************************/  /*************************************************************************/  /*                                                                       */  /* This driver implements Type42 fonts as described in the               */  /* Technical Note #5012 from Adobe, with these limitations:              */  /*                                                                       */  /* 1) CID Fonts are not currently supported.                             */  /* 2) Incremental fonts making use of the GlyphDirectory keyword         */  /*    will be loaded, but the rendering will be using the TrueType       */  /*    tables.                                                            */  /* 3) As for Type1 fonts, CDevProc is not supported.                     */  /* 4) The Metrics dictionary is not supported.                           */  /* 5) AFM metrics are not supported.                                     */  /*                                                                       */  /* In other words, this driver supports Type42 fonts derived from        */  /* TrueType fonts in a non-CID manner, as done by usual conversion       */  /* programs.                                                             */  /*                                                                       */  /*************************************************************************/#include "t42drivr.h"#include "t42objs.h"#include "t42error.h"#include FT_INTERNAL_DEBUG_H#include FT_SERVICE_XFREE86_NAME_H#include FT_SERVICE_GLYPH_DICT_H#include FT_SERVICE_POSTSCRIPT_NAME_H#include FT_SERVICE_POSTSCRIPT_INFO_H#undef  FT_COMPONENT#define FT_COMPONENT  trace_t42 /*  *  *  GLYPH DICT SERVICE  *  */  static FT_Error  t42_get_glyph_name( T42_Face    face,                      FT_UInt     glyph_index,                      FT_Pointer  buffer,                      FT_UInt     buffer_max )  {    FT_String*  gname;    gname = face->type1.glyph_names[glyph_index];    if ( buffer_max > 0 )    {      FT_UInt  len = (FT_UInt)( ft_strlen( gname ) );      if ( len >= buffer_max )        len = buffer_max - 1;      FT_MEM_COPY( buffer, gname, len );      ((FT_Byte*)buffer)[len] = 0;    }    return T42_Err_Ok;  }  static FT_UInt  t42_get_name_index( T42_Face    face,                      FT_String*  glyph_name )  {    FT_Int      i;    FT_String*  gname;    for ( i = 0; i < face->type1.num_glyphs; i++ )    {      gname = face->type1.glyph_names[i];      if ( !ft_strcmp( glyph_name, gname ) )        return (FT_UInt)ft_atol( (const char *)face->type1.charstrings[i] );    }    return 0;  }  static const FT_Service_GlyphDictRec  t42_service_glyph_dict =  {    (FT_GlyphDict_GetNameFunc)  t42_get_glyph_name,    (FT_GlyphDict_NameIndexFunc)t42_get_name_index  }; /*  *  *  POSTSCRIPT NAME SERVICE  *  */  static const char*  t42_get_ps_font_name( T42_Face  face )  {    return (const char*)face->type1.font_name;  }  static const FT_Service_PsFontNameRec  t42_service_ps_font_name =  {    (FT_PsName_GetFunc)t42_get_ps_font_name  }; /*  *  *  POSTSCRIPT INFO SERVICE  *  */  static FT_Error  t42_ps_get_font_info( FT_Face          face,                        PS_FontInfoRec*  afont_info )  {    *afont_info = ((T42_Face)face)->type1.font_info;    return T42_Err_Ok;  }  static FT_Int  t42_ps_has_glyph_names( FT_Face  face )  {    FT_UNUSED( face );    return 1;  }  static FT_Error  t42_ps_get_font_private( FT_Face         face,                           PS_PrivateRec*  afont_private )  {    *afont_private = ((T42_Face)face)->type1.private_dict;    return T42_Err_Ok;  }  static const FT_Service_PsInfoRec  t42_service_ps_info =  {    (PS_GetFontInfoFunc)   t42_ps_get_font_info,    (PS_HasGlyphNamesFunc) t42_ps_has_glyph_names,    (PS_GetFontPrivateFunc)t42_ps_get_font_private  }; /*  *  *  SERVICE LIST  *  */  static const FT_ServiceDescRec  t42_services[] =  {    { FT_SERVICE_ID_GLYPH_DICT,           &t42_service_glyph_dict },    { FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &t42_service_ps_font_name },    { FT_SERVICE_ID_POSTSCRIPT_INFO,      &t42_service_ps_info },    { FT_SERVICE_ID_XF86_NAME,            FT_XF86_FORMAT_TYPE_42 },    { NULL, NULL }  };  static FT_Module_Interface  T42_Get_Interface( FT_Driver         driver,                     const FT_String*  t42_interface )  {    FT_UNUSED( driver );    return ft_service_list_lookup( t42_services, t42_interface );  }  const FT_Driver_ClassRec  t42_driver_class =  {    {      FT_MODULE_FONT_DRIVER       |      FT_MODULE_DRIVER_SCALABLE   |#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER      FT_MODULE_DRIVER_HAS_HINTER,#else      0,#endif      sizeof ( T42_DriverRec ),      "type42",      0x10000L,      0x20000L,      0,    /* format interface */      (FT_Module_Constructor)T42_Driver_Init,      (FT_Module_Destructor) T42_Driver_Done,      (FT_Module_Requester)  T42_Get_Interface,    },    sizeof ( T42_FaceRec ),    sizeof ( T42_SizeRec ),    sizeof ( T42_GlyphSlotRec ),    (FT_Face_InitFunc)        T42_Face_Init,    (FT_Face_DoneFunc)        T42_Face_Done,    (FT_Size_InitFunc)        T42_Size_Init,    (FT_Size_DoneFunc)        T42_Size_Done,    (FT_Slot_InitFunc)        T42_GlyphSlot_Init,    (FT_Slot_DoneFunc)        T42_GlyphSlot_Done,#ifdef FT_CONFIG_OPTION_OLD_INTERNALS    ft_stub_set_char_sizes,    ft_stub_set_pixel_sizes,#endif    (FT_Slot_LoadFunc)        T42_GlyphSlot_Load,    (FT_Face_GetKerningFunc)  0,    (FT_Face_AttachFunc)      0,    (FT_Face_GetAdvancesFunc) 0,    (FT_Size_RequestFunc)     T42_Size_Request,    (FT_Size_SelectFunc)      T42_Size_Select  };/* END */