| /***************************************************************************/ |
| /* */ |
| /* cidobjs.c */ |
| /* */ |
| /* CID objects manager (body). */ |
| /* */ |
| /* Copyright 1996-2001 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 "cidgload.h" |
| #include "cidload.h" |
| #include FT_INTERNAL_POSTSCRIPT_NAMES_H |
| #include FT_INTERNAL_POSTSCRIPT_AUX_H |
| #include FT_INTERNAL_POSTSCRIPT_HINTS_H |
| |
| #include "ciderrs.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_cidobjs |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* SLOT FUNCTIONS */ |
| /* */ |
| /*************************************************************************/ |
| |
| FT_LOCAL_DEF void |
| CID_GlyphSlot_Done( CID_GlyphSlot slot ) |
| { |
| slot->root.internal->glyph_hints = 0; |
| } |
| |
| |
| FT_LOCAL_DEF FT_Error |
| CID_GlyphSlot_Init( CID_GlyphSlot slot ) |
| { |
| CID_Face face; |
| PSHinter_Interface* pshinter; |
| |
| |
| face = (CID_Face) slot->root.face; |
| pshinter = face->pshinter; |
| |
| if ( pshinter ) |
| { |
| FT_Module module; |
| |
| |
| module = FT_Get_Module( slot->root.face->driver->root.library, |
| "pshinter" ); |
| if ( module ) |
| { |
| T1_Hints_Funcs funcs; |
| |
| |
| funcs = pshinter->get_t1_funcs( module ); |
| slot->root.internal->glyph_hints = (void*)funcs; |
| } |
| } |
| |
| return 0; |
| } |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* SIZE FUNCTIONS */ |
| /* */ |
| /*************************************************************************/ |
| |
| |
| static PSH_Globals_Funcs |
| CID_Size_Get_Globals_Funcs( CID_Size size ) |
| { |
| CID_Face face = (CID_Face)size->root.face; |
| PSHinter_Interface* pshinter = face->pshinter; |
| FT_Module module; |
| |
| |
| module = FT_Get_Module( size->root.face->driver->root.library, |
| "pshinter" ); |
| return ( module && pshinter && pshinter->get_globals_funcs ) |
| ? pshinter->get_globals_funcs( module ) |
| : 0; |
| } |
| |
| |
| FT_LOCAL_DEF void |
| CID_Size_Done( CID_Size size ) |
| { |
| if ( size->root.internal ) |
| { |
| PSH_Globals_Funcs funcs; |
| |
| |
| funcs = CID_Size_Get_Globals_Funcs( size ); |
| if ( funcs ) |
| funcs->destroy( (PSH_Globals)size->root.internal ); |
| |
| size->root.internal = 0; |
| } |
| } |
| |
| |
| FT_LOCAL_DEF FT_Error |
| CID_Size_Init( CID_Size size ) |
| { |
| FT_Error error = 0; |
| PSH_Globals_Funcs funcs = CID_Size_Get_Globals_Funcs( size ); |
| |
| |
| if ( funcs ) |
| { |
| PSH_Globals globals; |
| CID_Face face = (CID_Face)size->root.face; |
| CID_FontDict* dict = face->cid.font_dicts + face->root.face_index; |
| T1_Private* priv = &dict->private_dict; |
| |
| |
| error = funcs->create( size->root.face->memory, priv, &globals ); |
| if ( !error ) |
| size->root.internal = (FT_Size_Internal)(void*)globals; |
| } |
| |
| return error; |
| } |
| |
| |
| FT_LOCAL_DEF FT_Error |
| CID_Size_Reset( CID_Size size ) |
| { |
| PSH_Globals_Funcs funcs = CID_Size_Get_Globals_Funcs( size ); |
| FT_Error error = 0; |
| |
| |
| if ( funcs ) |
| error = funcs->set_scale( (PSH_Globals)size->root.internal, |
| size->root.metrics.x_scale, |
| size->root.metrics.y_scale, |
| 0, 0 ); |
| return error; |
| } |
| |
| |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* FACE FUNCTIONS */ |
| /* */ |
| /*************************************************************************/ |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* <Function> */ |
| /* CID_Face_Done */ |
| /* */ |
| /* <Description> */ |
| /* Finalizes a given face object. */ |
| /* */ |
| /* <Input> */ |
| /* face :: A pointer to the face object to destroy. */ |
| /* */ |
| FT_LOCAL_DEF void |
| CID_Face_Done( CID_Face face ) |
| { |
| FT_Memory memory; |
| |
| |
| if ( face ) |
| { |
| CID_Info* cid = &face->cid; |
| T1_FontInfo* info = &cid->font_info; |
| |
| |
| memory = face->root.memory; |
| |
| /* release subrs */ |
| if ( face->subrs ) |
| { |
| FT_Int n; |
| |
| |
| for ( n = 0; n < cid->num_dicts; n++ ) |
| { |
| CID_Subrs* subr = face->subrs + n; |
| |
| |
| if ( subr->code ) |
| { |
| FREE( subr->code[0] ); |
| FREE( subr->code ); |
| } |
| } |
| |
| FREE( face->subrs ); |
| } |
| |
| /* release FontInfo strings */ |
| FREE( info->version ); |
| FREE( info->notice ); |
| FREE( info->full_name ); |
| FREE( info->family_name ); |
| FREE( info->weight ); |
| |
| /* release font dictionaries */ |
| FREE( cid->font_dicts ); |
| cid->num_dicts = 0; |
| |
| /* release other strings */ |
| FREE( cid->cid_font_name ); |
| FREE( cid->registry ); |
| FREE( cid->ordering ); |
| |
| face->root.family_name = 0; |
| face->root.style_name = 0; |
| } |
| } |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* <Function> */ |
| /* CID_Face_Init */ |
| /* */ |
| /* <Description> */ |
| /* Initializes a given CID face object. */ |
| /* */ |
| /* <Input> */ |
| /* stream :: The source font stream. */ |
| /* */ |
| /* 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 newly built face object. */ |
| /* */ |
| /* <Return> */ |
| /* FreeType error code. 0 means success. */ |
| /* */ |
| FT_LOCAL_DEF FT_Error |
| CID_Face_Init( FT_Stream stream, |
| CID_Face face, |
| FT_Int face_index, |
| FT_Int num_params, |
| FT_Parameter* params ) |
| { |
| FT_Error error; |
| PSNames_Interface* psnames; |
| PSAux_Interface* psaux; |
| PSHinter_Interface* pshinter; |
| |
| 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; |
| } |
| |
| pshinter = (PSHinter_Interface*)face->pshinter; |
| if ( !pshinter ) |
| { |
| pshinter = (PSHinter_Interface*)FT_Get_Module_Interface( |
| FT_FACE_LIBRARY( face ), "pshinter" ); |
| |
| face->pshinter = pshinter; |
| } |
| |
| /* open the tokenizer; this will also check the font format */ |
| if ( FILE_Seek( 0 ) ) |
| goto Exit; |
| |
| error = CID_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(( "CID_Face_Init: invalid face index\n" )); |
| error = CID_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->cid.cid_count; |
| root->num_charmaps = 0; |
| |
| root->face_index = face_index; |
| root->face_flags = FT_FACE_FLAG_SCALABLE; |
| |
| root->face_flags |= FT_FACE_FLAG_HORIZONTAL; |
| |
| if ( face->cid.font_info.is_fixed_pitch ) |
| root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH; |
| |
| /* 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->cid.font_info.family_name; |
| if ( root->family_name ) |
| { |
| char* full = face->cid.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->cid.cid_font_name ) |
| { |
| root->family_name = face->cid.cid_font_name; |
| root->style_name = (char *)"Regular"; |
| } |
| } |
| |
| /* no embedded bitmap support */ |
| root->num_fixed_sizes = 0; |
| root->available_sizes = 0; |
| |
| root->bbox = face->cid.font_bbox; |
| if ( !root->units_per_EM ) |
| root->units_per_EM = 1000; |
| |
| root->ascender = (FT_Short)( face->cid.font_bbox.yMax >> 16 ); |
| root->descender = (FT_Short)( face->cid.font_bbox.yMin >> 16 ); |
| root->height = (FT_Short)( |
| ( ( root->ascender + root->descender ) * 12 ) / 10 ); |
| |
| |
| #if 0 |
| |
| /* now compute the maximum advance width */ |
| |
| root->max_advance_width = face->type1.private_dict.standard_width[0]; |
| |
| /* compute max advance width for proportional fonts */ |
| if ( !face->type1.font_info.is_fixed_pitch ) |
| { |
| FT_Int max_advance; |
| |
| |
| error = CID_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; |
| |
| #endif /* 0 */ |
| |
| root->underline_position = face->cid.font_info.underline_position; |
| root->underline_thickness = face->cid.font_info.underline_thickness; |
| |
| root->internal->max_points = 0; |
| root->internal->max_contours = 0; |
| } |
| } |
| |
| #if 0 |
| |
| /* charmap support - synthetize unicode charmap when possible */ |
| { |
| FT_Face root = &face->root; |
| FT_CharMap charmap = face->charmaprecs; |
| |
| |
| /* synthesize a Unicode charmap if there is support in the `psnames' */ |
| /* module */ |
| if ( face->psnames ) |
| { |
| PSNames_Interface* psnames = (PSNames_Interface*)face->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 = 0; |
| } |
| } |
| |
| /* now, support either the standard, expert, or custom encodings */ |
| 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]; |
| } |
| |
| #endif /* 0 */ |
| |
| Exit: |
| return error; |
| } |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* <Function> */ |
| /* CID_Driver_Init */ |
| /* */ |
| /* <Description> */ |
| /* Initializes a given CID driver object. */ |
| /* */ |
| /* <Input> */ |
| /* driver :: A handle to the target driver object. */ |
| /* */ |
| /* <Return> */ |
| /* FreeType error code. 0 means success. */ |
| /* */ |
| FT_LOCAL_DEF FT_Error |
| CID_Driver_Init( CID_Driver driver ) |
| { |
| FT_UNUSED( driver ); |
| |
| return CID_Err_Ok; |
| } |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* <Function> */ |
| /* CID_Driver_Done */ |
| /* */ |
| /* <Description> */ |
| /* Finalizes a given CID driver. */ |
| /* */ |
| /* <Input> */ |
| /* driver :: A handle to the target CID driver. */ |
| /* */ |
| FT_LOCAL_DEF void |
| CID_Driver_Done( CID_Driver driver ) |
| { |
| FT_UNUSED( driver ); |
| } |
| |
| |
| /* END */ |