| /***************************************************************************/ |
| /* */ |
| /* 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 <freetype/internal/ftdebug.h> |
| #include <freetype/internal/ftstream.h> |
| |
| |
| #ifdef FT_FLAT_COMPILE |
| |
| #include "t1gload.h" |
| #include "t1load.h" |
| #include "t1afm.h" |
| |
| #else |
| |
| #include <type1/t1gload.h> |
| #include <type1/t1load.h> |
| #include <type1/t1afm.h> |
| |
| #endif |
| |
| |
| #include <freetype/internal/psnames.h> |
| #include <freetype/internal/psaux.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->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"; |
| } |
| } |
| |
| /* no embedded bitmap support */ |
| root->num_fixed_sizes = 0; |
| root->available_sizes = 0; |
| |
| root->bbox = face->type1.font_bbox; |
| root->units_per_EM = 1000; |
| root->ascender = (FT_Short)face->type1.font_bbox.yMax; |
| root->descender = (FT_Short)face->type1.font_bbox.yMin; |
| root->height = ( ( root->ascender + root->descender ) * 12 ) / 10; |
| |
| /* now compute the maximum advance width */ |
| |
| |
| root->max_advance_width = face->type1.font_bbox.xMax; |
| { |
| 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 = FT_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 |
| void T1_Done_Driver( T1_Driver driver ) |
| { |
| FT_UNUSED( driver ); |
| } |
| |
| |
| /* END */ |
