123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448 |
- /***************************************************************************/
- /* */
- /* cidobjs.c */
- /* */
- /* CID objects manager (body). */
- /* */
- /* Copyright 1996-2001, 2002 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_slot_done( CID_GlyphSlot slot )
- {
- slot->root.internal->glyph_hints = 0;
- }
- FT_LOCAL_DEF( FT_Error )
- cid_slot_init( CID_GlyphSlot slot )
- {
- CID_Face face;
- PSHinter_Service pshinter;
- face = (CID_Face)slot->root.face;
- pshinter = (PSHinter_Service)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_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( 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_FaceDict dict = face->cid.font_dicts + face->root.face_index;
- PS_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_FaceInfo cid = &face->cid;
- PS_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 )
- {
- 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 );
- 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_Service psnames;
- PSAux_Service psaux;
- PSHinter_Service pshinter;
- FT_UNUSED( num_params );
- FT_UNUSED( params );
- FT_UNUSED( face_index );
- FT_UNUSED( stream );
- face->root.num_faces = 1;
- psnames = (PSNames_Service)face->psnames;
- if ( !psnames )
- {
- psnames = (PSNames_Service)FT_Get_Module_Interface(
- FT_FACE_LIBRARY( face ), "psnames" );
- face->psnames = psnames;
- }
- 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 );
- 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.xMin = face->cid.font_bbox.xMin >> 16;
- root->bbox.yMin = face->cid.font_bbox.yMin >> 16;
- root->bbox.xMax = ( face->cid.font_bbox.xMax + 0xFFFFU ) >> 16;
- root->bbox.yMax = ( face->cid.font_bbox.yMax + 0xFFFFU ) >> 16;
- if ( !root->units_per_EM )
- root->units_per_EM = 1000;
- root->ascender = (FT_Short)( root->bbox.yMax );
- root->descender = (FT_Short)( root->bbox.yMin );
- root->height = (FT_Short)(
- ( ( root->ascender + root->descender ) * 12 ) / 10 );
- 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;
- }
- }
- 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 */
|