--- a/misc/libfreetype/src/type42/t42objs.c Fri Oct 11 11:55:31 2013 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,652 +0,0 @@
-/***************************************************************************/
-/* */
-/* t42objs.c */
-/* */
-/* Type 42 objects manager (body). */
-/* */
-/* Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 */
-/* 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. */
-/* */
-/***************************************************************************/
-
-
-#include "t42objs.h"
-#include "t42parse.h"
-#include "t42error.h"
-#include FT_INTERNAL_DEBUG_H
-#include FT_LIST_H
-#include FT_TRUETYPE_IDS_H
-
-
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_t42
-
-
- static FT_Error
- T42_Open_Face( T42_Face face )
- {
- T42_LoaderRec loader;
- T42_Parser parser;
- T1_Font type1 = &face->type1;
- FT_Memory memory = face->root.memory;
- FT_Error error;
-
- PSAux_Service psaux = (PSAux_Service)face->psaux;
-
-
- t42_loader_init( &loader, face );
-
- parser = &loader.parser;
-
- if ( FT_ALLOC( face->ttf_data, 12 ) )
- goto Exit;
-
- error = t42_parser_init( parser,
- face->root.stream,
- memory,
- psaux);
- if ( error )
- goto Exit;
-
- error = t42_parse_dict( face, &loader,
- parser->base_dict, parser->base_len );
- if ( error )
- goto Exit;
-
- if ( type1->font_type != 42 )
- {
- error = T42_Err_Unknown_File_Format;
- goto Exit;
- }
-
- /* now, propagate the charstrings and glyphnames tables */
- /* to the Type1 data */
- type1->num_glyphs = loader.num_glyphs;
-
- if ( !loader.charstrings.init )
- {
- FT_ERROR(( "T42_Open_Face: no charstrings array in face\n" ));
- error = T42_Err_Invalid_File_Format;
- }
-
- loader.charstrings.init = 0;
- type1->charstrings_block = loader.charstrings.block;
- type1->charstrings = loader.charstrings.elements;
- type1->charstrings_len = loader.charstrings.lengths;
-
- /* we copy the glyph names `block' and `elements' fields; */
- /* the `lengths' field must be released later */
- type1->glyph_names_block = loader.glyph_names.block;
- type1->glyph_names = (FT_String**)loader.glyph_names.elements;
- loader.glyph_names.block = 0;
- loader.glyph_names.elements = 0;
-
- /* we must now build type1.encoding when we have a custom array */
- if ( type1->encoding_type == T1_ENCODING_TYPE_ARRAY )
- {
- FT_Int charcode, idx, min_char, max_char;
- FT_Byte* char_name;
- FT_Byte* glyph_name;
-
-
- /* OK, we do the following: for each element in the encoding */
- /* table, look up the index of the glyph having the same name */
- /* as defined in the CharStrings array. */
- /* The index is then stored in type1.encoding.char_index, and */
- /* the name in type1.encoding.char_name */
-
- min_char = 0;
- max_char = 0;
-
- charcode = 0;
- for ( ; charcode < loader.encoding_table.max_elems; charcode++ )
- {
- type1->encoding.char_index[charcode] = 0;
- type1->encoding.char_name [charcode] = (char *)".notdef";
-
- char_name = loader.encoding_table.elements[charcode];
- if ( char_name )
- for ( idx = 0; idx < type1->num_glyphs; idx++ )
- {
- glyph_name = (FT_Byte*)type1->glyph_names[idx];
- if ( ft_strcmp( (const char*)char_name,
- (const char*)glyph_name ) == 0 )
- {
- type1->encoding.char_index[charcode] = (FT_UShort)idx;
- type1->encoding.char_name [charcode] = (char*)glyph_name;
-
- /* Change min/max encoded char only if glyph name is */
- /* not /.notdef */
- if ( ft_strcmp( (const char*)".notdef",
- (const char*)glyph_name ) != 0 )
- {
- if ( charcode < min_char )
- min_char = charcode;
- if ( charcode >= max_char )
- max_char = charcode + 1;
- }
- break;
- }
- }
- }
-
- type1->encoding.code_first = min_char;
- type1->encoding.code_last = max_char;
- type1->encoding.num_chars = loader.num_chars;
- }
-
- Exit:
- t42_loader_done( &loader );
- return error;
- }
-
-
- /***************** Driver Functions *************/
-
-
- FT_LOCAL_DEF( FT_Error )
- T42_Face_Init( FT_Stream stream,
- T42_Face face,
- FT_Int face_index,
- FT_Int num_params,
- FT_Parameter* params )
- {
- FT_Error error;
- FT_Service_PsCMaps psnames;
- PSAux_Service psaux;
- FT_Face root = (FT_Face)&face->root;
- T1_Font type1 = &face->type1;
- PS_FontInfo info = &type1->font_info;
-
- FT_UNUSED( num_params );
- FT_UNUSED( params );
- FT_UNUSED( face_index );
- FT_UNUSED( stream );
-
-
- face->ttf_face = NULL;
- face->root.num_faces = 1;
-
- FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS );
- face->psnames = psnames;
-
- face->psaux = FT_Get_Module_Interface( FT_FACE_LIBRARY( face ),
- "psaux" );
- psaux = (PSAux_Service)face->psaux;
-
- /* open the tokenizer, this will also check the font format */
- error = T42_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(( "T42_Face_Init: invalid face index\n" ));
- error = T42_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 */
-
- root->num_glyphs = type1->num_glyphs;
- root->num_charmaps = 0;
- root->face_index = 0;
-
- root->face_flags = FT_FACE_FLAG_SCALABLE |
- FT_FACE_FLAG_HORIZONTAL |
- FT_FACE_FLAG_GLYPH_NAMES;
-
- if ( info->is_fixed_pitch )
- root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
-
- /* We only set this flag if we have the patented bytecode interpreter. */
- /* There are no known `tricky' Type42 fonts that could be loaded with */
- /* the unpatented interpreter. */
-#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER
- root->face_flags |= FT_FACE_FLAG_HINTER;
-#endif
-
- /* XXX: TODO -- add kerning with .afm support */
-
- /* get style name -- be careful, some broken fonts only */
- /* have a `/FontName' dictionary entry! */
- root->family_name = info->family_name;
- /* assume "Regular" style if we don't know better */
- root->style_name = (char *)"Regular";
- if ( root->family_name )
- {
- char* full = info->full_name;
- char* family = root->family_name;
-
-
- if ( full )
- {
- while ( *full )
- {
- if ( *full == *family )
- {
- family++;
- full++;
- }
- else
- {
- if ( *full == ' ' || *full == '-' )
- full++;
- else if ( *family == ' ' || *family == '-' )
- family++;
- else
- {
- if ( !*family )
- root->style_name = full;
- break;
- }
- }
- }
- }
- }
- else
- {
- /* do we have a `/FontName'? */
- if ( type1->font_name )
- root->family_name = type1->font_name;
- }
-
- /* no embedded bitmap support */
- root->num_fixed_sizes = 0;
- root->available_sizes = 0;
-
- /* Load the TTF font embedded in the T42 font */
- {
- FT_Open_Args args;
-
-
- args.flags = FT_OPEN_MEMORY;
- args.memory_base = face->ttf_data;
- args.memory_size = face->ttf_size;
-
- if ( num_params )
- {
- args.flags |= FT_OPEN_PARAMS;
- args.num_params = num_params;
- args.params = params;
- }
-
- error = FT_Open_Face( FT_FACE_LIBRARY( face ),
- &args, 0, &face->ttf_face );
- }
-
- if ( error )
- goto Exit;
-
- FT_Done_Size( face->ttf_face->size );
-
- /* Ignore info in FontInfo dictionary and use the info from the */
- /* loaded TTF font. The PostScript interpreter also ignores it. */
- root->bbox = face->ttf_face->bbox;
- root->units_per_EM = face->ttf_face->units_per_EM;
-
- root->ascender = face->ttf_face->ascender;
- root->descender = face->ttf_face->descender;
- root->height = face->ttf_face->height;
-
- root->max_advance_width = face->ttf_face->max_advance_width;
- root->max_advance_height = face->ttf_face->max_advance_height;
-
- root->underline_position = (FT_Short)info->underline_position;
- root->underline_thickness = (FT_Short)info->underline_thickness;
-
- /* compute style flags */
- root->style_flags = 0;
- if ( info->italic_angle )
- root->style_flags |= FT_STYLE_FLAG_ITALIC;
-
- if ( face->ttf_face->style_flags & FT_STYLE_FLAG_BOLD )
- root->style_flags |= FT_STYLE_FLAG_BOLD;
-
- if ( face->ttf_face->face_flags & FT_FACE_FLAG_VERTICAL )
- root->face_flags |= FT_FACE_FLAG_VERTICAL;
-
- {
- if ( psnames && psaux )
- {
- FT_CharMapRec charmap;
- T1_CMap_Classes cmap_classes = psaux->t1_cmap_classes;
- FT_CMap_Class clazz;
-
-
- charmap.face = root;
-
- /* first of all, try to synthesize a Unicode charmap */
- charmap.platform_id = TT_PLATFORM_MICROSOFT;
- charmap.encoding_id = TT_MS_ID_UNICODE_CS;
- charmap.encoding = FT_ENCODING_UNICODE;
-
- error = FT_CMap_New( cmap_classes->unicode, NULL, &charmap, NULL );
- if ( error && FT_Err_No_Unicode_Glyph_Name != error )
- goto Exit;
- error = FT_Err_Ok;
-
- /* now, generate an Adobe Standard encoding when appropriate */
- charmap.platform_id = TT_PLATFORM_ADOBE;
- clazz = NULL;
-
- switch ( type1->encoding_type )
- {
- case T1_ENCODING_TYPE_STANDARD:
- charmap.encoding = FT_ENCODING_ADOBE_STANDARD;
- charmap.encoding_id = TT_ADOBE_ID_STANDARD;
- clazz = cmap_classes->standard;
- break;
-
- case T1_ENCODING_TYPE_EXPERT:
- charmap.encoding = FT_ENCODING_ADOBE_EXPERT;
- charmap.encoding_id = TT_ADOBE_ID_EXPERT;
- clazz = cmap_classes->expert;
- break;
-
- case T1_ENCODING_TYPE_ARRAY:
- charmap.encoding = FT_ENCODING_ADOBE_CUSTOM;
- charmap.encoding_id = TT_ADOBE_ID_CUSTOM;
- clazz = cmap_classes->custom;
- break;
-
- case T1_ENCODING_TYPE_ISOLATIN1:
- charmap.encoding = FT_ENCODING_ADOBE_LATIN_1;
- charmap.encoding_id = TT_ADOBE_ID_LATIN_1;
- clazz = cmap_classes->unicode;
- break;
-
- default:
- ;
- }
-
- if ( clazz )
- error = FT_CMap_New( clazz, NULL, &charmap, NULL );
-
-#if 0
- /* Select default charmap */
- if ( root->num_charmaps )
- root->charmap = root->charmaps[0];
-#endif
- }
- }
- Exit:
- return error;
- }
-
-
- FT_LOCAL_DEF( void )
- T42_Face_Done( T42_Face face )
- {
- T1_Font type1;
- PS_FontInfo info;
- FT_Memory memory;
-
-
- if ( !face )
- return;
-
- type1 = &face->type1;
- info = &type1->font_info;
- memory = face->root.memory;
-
- /* delete internal ttf face prior to freeing face->ttf_data */
- if ( face->ttf_face )
- FT_Done_Face( face->ttf_face );
-
- /* release font info strings */
- FT_FREE( info->version );
- FT_FREE( info->notice );
- FT_FREE( info->full_name );
- FT_FREE( info->family_name );
- FT_FREE( info->weight );
-
- /* release top dictionary */
- FT_FREE( type1->charstrings_len );
- FT_FREE( type1->charstrings );
- FT_FREE( type1->glyph_names );
-
- FT_FREE( type1->charstrings_block );
- FT_FREE( type1->glyph_names_block );
-
- FT_FREE( type1->encoding.char_index );
- FT_FREE( type1->encoding.char_name );
- FT_FREE( type1->font_name );
-
- FT_FREE( face->ttf_data );
-
-#if 0
- /* release afm data if present */
- if ( face->afm_data )
- T1_Done_AFM( memory, (T1_AFM*)face->afm_data );
-#endif
-
- /* release unicode map, if any */
- FT_FREE( face->unicode_map.maps );
- face->unicode_map.num_maps = 0;
-
- face->root.family_name = 0;
- face->root.style_name = 0;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* T42_Driver_Init */
- /* */
- /* <Description> */
- /* Initializes a given Type 42 driver object. */
- /* */
- /* <Input> */
- /* driver :: A handle to the target driver object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_LOCAL_DEF( FT_Error )
- T42_Driver_Init( T42_Driver driver )
- {
- FT_Module ttmodule;
-
-
- ttmodule = FT_Get_Module( FT_MODULE(driver)->library, "truetype" );
- driver->ttclazz = (FT_Driver_Class)ttmodule->clazz;
-
- return T42_Err_Ok;
- }
-
-
- FT_LOCAL_DEF( void )
- T42_Driver_Done( T42_Driver driver )
- {
- FT_UNUSED( driver );
- }
-
-
- FT_LOCAL_DEF( FT_Error )
- T42_Size_Init( T42_Size size )
- {
- FT_Face face = size->root.face;
- T42_Face t42face = (T42_Face)face;
- FT_Size ttsize;
- FT_Error error = T42_Err_Ok;
-
-
- error = FT_New_Size( t42face->ttf_face, &ttsize );
- size->ttsize = ttsize;
-
- FT_Activate_Size( ttsize );
-
- return error;
- }
-
-
- FT_LOCAL_DEF( FT_Error )
- T42_Size_Request( T42_Size size,
- FT_Size_Request req )
- {
- T42_Face face = (T42_Face)size->root.face;
- FT_Error error;
-
-
- FT_Activate_Size( size->ttsize );
-
- error = FT_Request_Size( face->ttf_face, req );
- if ( !error )
- ( (FT_Size)size )->metrics = face->ttf_face->size->metrics;
-
- return error;
- }
-
-
- FT_LOCAL_DEF( FT_Error )
- T42_Size_Select( T42_Size size,
- FT_ULong strike_index )
- {
- T42_Face face = (T42_Face)size->root.face;
- FT_Error error;
-
-
- FT_Activate_Size( size->ttsize );
-
- error = FT_Select_Size( face->ttf_face, (FT_Int)strike_index );
- if ( !error )
- ( (FT_Size)size )->metrics = face->ttf_face->size->metrics;
-
- return error;
-
- }
-
-
- FT_LOCAL_DEF( void )
- T42_Size_Done( T42_Size size )
- {
- FT_Face face = size->root.face;
- T42_Face t42face = (T42_Face)face;
- FT_ListNode node;
-
-
- node = FT_List_Find( &t42face->ttf_face->sizes_list, size->ttsize );
- if ( node )
- {
- FT_Done_Size( size->ttsize );
- size->ttsize = NULL;
- }
- }
-
-
- FT_LOCAL_DEF( FT_Error )
- T42_GlyphSlot_Init( T42_GlyphSlot slot )
- {
- FT_Face face = slot->root.face;
- T42_Face t42face = (T42_Face)face;
- FT_GlyphSlot ttslot;
- FT_Error error = T42_Err_Ok;
-
-
- if ( face->glyph == NULL )
- {
- /* First glyph slot for this face */
- slot->ttslot = t42face->ttf_face->glyph;
- }
- else
- {
- error = FT_New_GlyphSlot( t42face->ttf_face, &ttslot );
- slot->ttslot = ttslot;
- }
-
- return error;
- }
-
-
- FT_LOCAL_DEF( void )
- T42_GlyphSlot_Done( T42_GlyphSlot slot )
- {
- FT_Done_GlyphSlot( slot->ttslot );
- }
-
-
- static void
- t42_glyphslot_clear( FT_GlyphSlot slot )
- {
- /* free bitmap if needed */
- ft_glyphslot_free_bitmap( slot );
-
- /* clear all public fields in the glyph slot */
- FT_ZERO( &slot->metrics );
- FT_ZERO( &slot->outline );
- FT_ZERO( &slot->bitmap );
-
- slot->bitmap_left = 0;
- slot->bitmap_top = 0;
- slot->num_subglyphs = 0;
- slot->subglyphs = 0;
- slot->control_data = 0;
- slot->control_len = 0;
- slot->other = 0;
- slot->format = FT_GLYPH_FORMAT_NONE;
-
- slot->linearHoriAdvance = 0;
- slot->linearVertAdvance = 0;
- }
-
-
- FT_LOCAL_DEF( FT_Error )
- T42_GlyphSlot_Load( FT_GlyphSlot glyph,
- FT_Size size,
- FT_UInt glyph_index,
- FT_Int32 load_flags )
- {
- FT_Error error;
- T42_GlyphSlot t42slot = (T42_GlyphSlot)glyph;
- T42_Size t42size = (T42_Size)size;
- FT_Driver_Class ttclazz = ((T42_Driver)glyph->face->driver)->ttclazz;
-
-
- t42_glyphslot_clear( t42slot->ttslot );
- error = ttclazz->load_glyph( t42slot->ttslot,
- t42size->ttsize,
- glyph_index,
- load_flags | FT_LOAD_NO_BITMAP );
-
- if ( !error )
- {
- glyph->metrics = t42slot->ttslot->metrics;
-
- glyph->linearHoriAdvance = t42slot->ttslot->linearHoriAdvance;
- glyph->linearVertAdvance = t42slot->ttslot->linearVertAdvance;
-
- glyph->format = t42slot->ttslot->format;
- glyph->outline = t42slot->ttslot->outline;
-
- glyph->bitmap = t42slot->ttslot->bitmap;
- glyph->bitmap_left = t42slot->ttslot->bitmap_left;
- glyph->bitmap_top = t42slot->ttslot->bitmap_top;
-
- glyph->num_subglyphs = t42slot->ttslot->num_subglyphs;
- glyph->subglyphs = t42slot->ttslot->subglyphs;
-
- glyph->control_data = t42slot->ttslot->control_data;
- glyph->control_len = t42slot->ttslot->control_len;
- }
-
- return error;
- }
-
-
-/* END */