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/***************************************************************************/ |
/* */ |
/* t42drivr.c */ |
/* */ |
/* High-level Type 42 driver interface (body). */ |
/* */ |
/* Copyright 2002-2004, 2006, 2007, 2009, 2011, 2013 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. */ |
/* */ |
/***************************************************************************/ |
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/*************************************************************************/ |
/* */ |
/* 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. */ |
/* */ |
/*************************************************************************/ |
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#include "t42drivr.h" |
#include "t42objs.h" |
#include "t42error.h" |
#include FT_INTERNAL_DEBUG_H |
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#include FT_SERVICE_XFREE86_NAME_H |
#include FT_SERVICE_GLYPH_DICT_H |
#include FT_SERVICE_POSTSCRIPT_NAME_H |
#include FT_SERVICE_POSTSCRIPT_INFO_H |
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#undef FT_COMPONENT |
#define FT_COMPONENT trace_t42 |
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/* |
* |
* GLYPH DICT SERVICE |
* |
*/ |
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static FT_Error |
t42_get_glyph_name( T42_Face face, |
FT_UInt glyph_index, |
FT_Pointer buffer, |
FT_UInt buffer_max ) |
{ |
FT_STRCPYN( buffer, face->type1.glyph_names[glyph_index], buffer_max ); |
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return FT_Err_Ok; |
} |
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static FT_UInt |
t42_get_name_index( T42_Face face, |
FT_String* glyph_name ) |
{ |
FT_Int i; |
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for ( i = 0; i < face->type1.num_glyphs; i++ ) |
{ |
FT_String* gname = face->type1.glyph_names[i]; |
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if ( glyph_name[0] == gname[0] && !ft_strcmp( glyph_name, gname ) ) |
return (FT_UInt)ft_atol( (const char *)face->type1.charstrings[i] ); |
} |
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return 0; |
} |
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static const FT_Service_GlyphDictRec t42_service_glyph_dict = |
{ |
(FT_GlyphDict_GetNameFunc) t42_get_glyph_name, |
(FT_GlyphDict_NameIndexFunc)t42_get_name_index |
}; |
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/* |
* |
* POSTSCRIPT NAME SERVICE |
* |
*/ |
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static const char* |
t42_get_ps_font_name( T42_Face face ) |
{ |
return (const char*)face->type1.font_name; |
} |
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static const FT_Service_PsFontNameRec t42_service_ps_font_name = |
{ |
(FT_PsName_GetFunc)t42_get_ps_font_name |
}; |
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/* |
* |
* POSTSCRIPT INFO SERVICE |
* |
*/ |
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static FT_Error |
t42_ps_get_font_info( FT_Face face, |
PS_FontInfoRec* afont_info ) |
{ |
*afont_info = ((T42_Face)face)->type1.font_info; |
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return FT_Err_Ok; |
} |
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static FT_Error |
t42_ps_get_font_extra( FT_Face face, |
PS_FontExtraRec* afont_extra ) |
{ |
*afont_extra = ((T42_Face)face)->type1.font_extra; |
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return FT_Err_Ok; |
} |
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static FT_Int |
t42_ps_has_glyph_names( FT_Face face ) |
{ |
FT_UNUSED( face ); |
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return 1; |
} |
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static FT_Error |
t42_ps_get_font_private( FT_Face face, |
PS_PrivateRec* afont_private ) |
{ |
*afont_private = ((T42_Face)face)->type1.private_dict; |
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return FT_Err_Ok; |
} |
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static const FT_Service_PsInfoRec t42_service_ps_info = |
{ |
(PS_GetFontInfoFunc) t42_ps_get_font_info, |
(PS_GetFontExtraFunc) t42_ps_get_font_extra, |
(PS_HasGlyphNamesFunc) t42_ps_has_glyph_names, |
(PS_GetFontPrivateFunc)t42_ps_get_font_private, |
(PS_GetFontValueFunc) NULL /* not implemented */ |
}; |
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/* |
* |
* SERVICE LIST |
* |
*/ |
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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 } |
}; |
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FT_CALLBACK_DEF( FT_Module_Interface ) |
T42_Get_Interface( FT_Module module, |
const FT_String* t42_interface ) |
{ |
FT_UNUSED( module ); |
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return ft_service_list_lookup( t42_services, t42_interface ); |
} |
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const FT_Driver_ClassRec t42_driver_class = |
{ |
{ |
FT_MODULE_FONT_DRIVER | |
FT_MODULE_DRIVER_SCALABLE | |
#ifdef TT_USE_BYTECODE_INTERPRETER |
FT_MODULE_DRIVER_HAS_HINTER, |
#else |
0, |
#endif |
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sizeof ( T42_DriverRec ), |
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"type42", |
0x10000L, |
0x20000L, |
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0, /* format interface */ |
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T42_Driver_Init, |
T42_Driver_Done, |
T42_Get_Interface, |
}, |
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sizeof ( T42_FaceRec ), |
sizeof ( T42_SizeRec ), |
sizeof ( T42_GlyphSlotRec ), |
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T42_Face_Init, |
T42_Face_Done, |
T42_Size_Init, |
T42_Size_Done, |
T42_GlyphSlot_Init, |
T42_GlyphSlot_Done, |
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T42_GlyphSlot_Load, |
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0, /* FT_Face_GetKerningFunc */ |
0, /* FT_Face_AttachFunc */ |
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0, /* FT_Face_GetAdvancesFunc */ |
T42_Size_Request, |
T42_Size_Select |
}; |
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/* END */ |