Edit
kc3-lang/freetype/src/cid/cidobjs.c
Werner Lemberg
- src/cid/cidobjs.c
-
/***************************************************************************/ /* */ /* cidobjs.c */ /* */ /* CID objects manager (body). */ /* */ /* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2008, 2010 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_SERVICE_POSTSCRIPT_CMAPS_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_slot_done( FT_GlyphSlot slot ) { slot->internal->glyph_hints = 0; } FT_LOCAL_DEF( FT_Error ) cid_slot_init( FT_GlyphSlot slot ) { CID_Face face; PSHinter_Service pshinter; face = (CID_Face)slot->face; pshinter = (PSHinter_Service)face->pshinter; if ( pshinter ) { FT_Module module; module = FT_Get_Module( slot->face->driver->root.library, "pshinter" ); if ( module ) { T1_Hints_Funcs funcs; funcs = pshinter->get_t1_funcs( module ); slot->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_Service pshinter = (PSHinter_Service)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( FT_Size cidsize ) /* CID_Size */ { CID_Size size = (CID_Size)cidsize; if ( cidsize->internal ) { PSH_Globals_Funcs funcs; funcs = cid_size_get_globals_funcs( size ); if ( funcs ) funcs->destroy( (PSH_Globals)cidsize->internal ); cidsize->internal = 0; } } FT_LOCAL_DEF( FT_Error ) cid_size_init( FT_Size cidsize ) /* CID_Size */ { CID_Size size = (CID_Size)cidsize; FT_Error error = CID_Err_Ok; PSH_Globals_Funcs funcs = cid_size_get_globals_funcs( size ); if ( funcs ) { PSH_Globals globals; CID_Face face = (CID_Face)cidsize->face; CID_FaceDict dict = face->cid.font_dicts + face->root.face_index; PS_Private priv = &dict->private_dict; error = funcs->create( cidsize->face->memory, priv, &globals ); if ( !error ) cidsize->internal = (FT_Size_Internal)(void*)globals; } return error; } FT_LOCAL( FT_Error ) cid_size_request( FT_Size size, FT_Size_Request req ) { PSH_Globals_Funcs funcs; FT_Request_Metrics( size->face, req ); funcs = cid_size_get_globals_funcs( (CID_Size)size ); if ( funcs ) funcs->set_scale( (PSH_Globals)size->internal, size->metrics.x_scale, size->metrics.y_scale, 0, 0 ); return CID_Err_Ok; } /*************************************************************************/ /* */ /* 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( FT_Face cidface ) /* CID_Face */ { CID_Face face = (CID_Face)cidface; FT_Memory memory; CID_FaceInfo cid; PS_FontInfo info; if ( !face ) return; cid = &face->cid; info = &cid->font_info; memory = cidface->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 ) { FT_FREE( subr->code[0] ); FT_FREE( subr->code ); } } FT_FREE( face->subrs ); } /* release FontInfo strings */ FT_FREE( info->version ); FT_FREE( info->notice ); FT_FREE( info->full_name ); FT_FREE( info->family_name ); FT_FREE( info->weight ); /* release font dictionaries */ FT_FREE( cid->font_dicts ); cid->num_dicts = 0; /* release other strings */ FT_FREE( cid->cid_font_name ); FT_FREE( cid->registry ); FT_FREE( cid->ordering ); cidface->family_name = 0; cidface->style_name = 0; FT_FREE( face->binary_data ); FT_FREE( face->cid_stream ); } /*************************************************************************/ /* */ /* <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, FT_Face cidface, /* CID_Face */ FT_Int face_index, FT_Int num_params, FT_Parameter* params ) { CID_Face face = (CID_Face)cidface; FT_Error error; PSAux_Service psaux; PSHinter_Service pshinter; FT_UNUSED( num_params ); FT_UNUSED( params ); FT_UNUSED( stream ); cidface->num_faces = 1; psaux = (PSAux_Service)face->psaux; if ( !psaux ) { psaux = (PSAux_Service)FT_Get_Module_Interface( FT_FACE_LIBRARY( face ), "psaux" ); face->psaux = psaux; } pshinter = (PSHinter_Service)face->pshinter; if ( !pshinter ) { pshinter = (PSHinter_Service)FT_Get_Module_Interface( FT_FACE_LIBRARY( face ), "pshinter" ); face->pshinter = pshinter; } /* open the tokenizer; this will also check the font format */ if ( FT_STREAM_SEEK( 0 ) ) goto Exit; error = cid_face_open( face, face_index ); 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 */ /* XXX: handle CID fonts with more than a single face */ 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 */ /* initialize the face object fields */ /* set up root face fields */ { CID_FaceInfo cid = &face->cid; PS_FontInfo info = &cid->font_info; cidface->num_glyphs = cid->cid_count; cidface->num_charmaps = 0; cidface->face_index = face_index; cidface->face_flags = FT_FACE_FLAG_SCALABLE | /* scalable outlines */ FT_FACE_FLAG_HORIZONTAL | /* horizontal data */ FT_FACE_FLAG_HINTER; /* has native hinter */ if ( info->is_fixed_pitch ) cidface->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! */ cidface->family_name = info->family_name; /* assume "Regular" style if we don't know better */ cidface->style_name = (char *)"Regular"; if ( cidface->family_name ) { char* full = info->full_name; char* family = cidface->family_name; if ( full ) { while ( *full ) { if ( *full == *family ) { family++; full++; } else { if ( *full == ' ' || *full == '-' ) full++; else if ( *family == ' ' || *family == '-' ) family++; else { if ( !*family ) cidface->style_name = full; break; } } } } } else { /* do we have a `/FontName'? */ if ( cid->cid_font_name ) cidface->family_name = cid->cid_font_name; } /* compute style flags */ cidface->style_flags = 0; if ( info->italic_angle ) cidface->style_flags |= FT_STYLE_FLAG_ITALIC; if ( info->weight ) { if ( !ft_strcmp( info->weight, "Bold" ) || !ft_strcmp( info->weight, "Black" ) ) cidface->style_flags |= FT_STYLE_FLAG_BOLD; } /* no embedded bitmap support */ cidface->num_fixed_sizes = 0; cidface->available_sizes = 0; cidface->bbox.xMin = cid->font_bbox.xMin >> 16; cidface->bbox.yMin = cid->font_bbox.yMin >> 16; /* no `U' suffix here to 0xFFFF! */ cidface->bbox.xMax = ( cid->font_bbox.xMax + 0xFFFF ) >> 16; cidface->bbox.yMax = ( cid->font_bbox.yMax + 0xFFFF ) >> 16; if ( !cidface->units_per_EM ) cidface->units_per_EM = 1000; cidface->ascender = (FT_Short)( cidface->bbox.yMax ); cidface->descender = (FT_Short)( cidface->bbox.yMin ); cidface->height = (FT_Short)( ( cidface->units_per_EM * 12 ) / 10 ); if ( cidface->height < cidface->ascender - cidface->descender ) cidface->height = (FT_Short)( cidface->ascender - cidface->descender ); cidface->underline_position = (FT_Short)info->underline_position; cidface->underline_thickness = (FT_Short)info->underline_thickness; } 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( FT_Module 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( FT_Module driver ) { FT_UNUSED( driver ); } /* END */