3d507fefe8
(T1_Face_Done), src/winfonts/winfnt.c (FNT_Face_Done): Check for face == NULL. Suggested by Graham Asher.
567 lines
19 KiB
C
567 lines
19 KiB
C
/***************************************************************************/
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/* */
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/* t1objs.c */
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/* */
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/* Type 1 objects manager (body). */
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/* */
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/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007 by */
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/* David Turner, Robert Wilhelm, and Werner Lemberg. */
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/* */
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/* This file is part of the FreeType project, and may only be used, */
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/* modified, and distributed under the terms of the FreeType project */
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/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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/* this file you indicate that you have read the license and */
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/* understand and accept it fully. */
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/* */
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/***************************************************************************/
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#include <ft2build.h>
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#include FT_INTERNAL_DEBUG_H
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#include FT_INTERNAL_STREAM_H
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#include FT_TRUETYPE_IDS_H
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#include "t1gload.h"
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#include "t1load.h"
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#include "t1errors.h"
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#ifndef T1_CONFIG_OPTION_NO_AFM
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#include "t1afm.h"
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#endif
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#include FT_SERVICE_POSTSCRIPT_CMAPS_H
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#include FT_INTERNAL_POSTSCRIPT_AUX_H
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/*************************************************************************/
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/* */
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/* The macro FT_COMPONENT is used in trace mode. It is an implicit */
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/* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
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/* messages during execution. */
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/* */
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#undef FT_COMPONENT
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#define FT_COMPONENT trace_t1objs
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/*************************************************************************/
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/* */
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/* SIZE FUNCTIONS */
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/* */
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/* note that we store the global hints in the size's "internal" root */
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/* field */
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/* */
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/*************************************************************************/
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static PSH_Globals_Funcs
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T1_Size_Get_Globals_Funcs( T1_Size size )
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{
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T1_Face face = (T1_Face)size->root.face;
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PSHinter_Service pshinter = (PSHinter_Service)face->pshinter;
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FT_Module module;
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module = FT_Get_Module( size->root.face->driver->root.library,
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"pshinter" );
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return ( module && pshinter && pshinter->get_globals_funcs )
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? pshinter->get_globals_funcs( module )
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: 0 ;
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}
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FT_LOCAL_DEF( void )
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T1_Size_Done( T1_Size size )
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{
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if ( size->root.internal )
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{
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PSH_Globals_Funcs funcs;
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funcs = T1_Size_Get_Globals_Funcs( size );
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if ( funcs )
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funcs->destroy( (PSH_Globals)size->root.internal );
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size->root.internal = 0;
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}
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}
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FT_LOCAL_DEF( FT_Error )
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T1_Size_Init( T1_Size size )
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{
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FT_Error error = 0;
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PSH_Globals_Funcs funcs = T1_Size_Get_Globals_Funcs( size );
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if ( funcs )
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{
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PSH_Globals globals;
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T1_Face face = (T1_Face)size->root.face;
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error = funcs->create( size->root.face->memory,
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&face->type1.private_dict, &globals );
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if ( !error )
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size->root.internal = (FT_Size_Internal)(void*)globals;
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}
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return error;
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}
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FT_LOCAL_DEF( FT_Error )
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T1_Size_Request( T1_Size size,
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FT_Size_Request req )
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{
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PSH_Globals_Funcs funcs = T1_Size_Get_Globals_Funcs( size );
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FT_Request_Metrics( size->root.face, req );
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if ( funcs )
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funcs->set_scale( (PSH_Globals)size->root.internal,
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size->root.metrics.x_scale,
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size->root.metrics.y_scale,
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0, 0 );
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return T1_Err_Ok;
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}
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/*************************************************************************/
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/* */
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/* SLOT FUNCTIONS */
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/* */
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/*************************************************************************/
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FT_LOCAL_DEF( void )
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T1_GlyphSlot_Done( T1_GlyphSlot slot )
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{
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slot->root.internal->glyph_hints = 0;
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}
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FT_LOCAL_DEF( FT_Error )
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T1_GlyphSlot_Init( T1_GlyphSlot slot )
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{
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T1_Face face;
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PSHinter_Service pshinter;
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face = (T1_Face)slot->root.face;
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pshinter = (PSHinter_Service)face->pshinter;
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if ( pshinter )
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{
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FT_Module module;
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module = FT_Get_Module( slot->root.face->driver->root.library, "pshinter" );
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if (module)
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{
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T1_Hints_Funcs funcs;
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funcs = pshinter->get_t1_funcs( module );
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slot->root.internal->glyph_hints = (void*)funcs;
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}
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}
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return 0;
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}
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/*************************************************************************/
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/* */
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/* FACE FUNCTIONS */
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/* */
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/*************************************************************************/
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/*************************************************************************/
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/* */
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/* <Function> */
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/* T1_Face_Done */
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/* */
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/* <Description> */
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/* The face object destructor. */
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/* */
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/* <Input> */
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/* face :: A typeless pointer to the face object to destroy. */
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/* */
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FT_LOCAL_DEF( void )
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T1_Face_Done( T1_Face face )
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{
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if ( face )
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{
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FT_Memory memory = face->root.memory;
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T1_Font type1 = &face->type1;
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#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT
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/* release multiple masters information */
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FT_ASSERT( ( face->len_buildchar == 0 ) == ( face->buildchar == NULL ) );
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if ( face->buildchar )
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{
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FT_FREE( face->buildchar );
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face->buildchar = NULL;
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face->len_buildchar = 0;
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}
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T1_Done_Blend( face );
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face->blend = 0;
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#endif
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/* release font info strings */
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{
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PS_FontInfo info = &type1->font_info;
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FT_FREE( info->version );
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FT_FREE( info->notice );
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FT_FREE( info->full_name );
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FT_FREE( info->family_name );
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FT_FREE( info->weight );
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}
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/* release top dictionary */
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FT_FREE( type1->charstrings_len );
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FT_FREE( type1->charstrings );
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FT_FREE( type1->glyph_names );
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FT_FREE( type1->subrs );
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FT_FREE( type1->subrs_len );
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FT_FREE( type1->subrs_block );
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FT_FREE( type1->charstrings_block );
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FT_FREE( type1->glyph_names_block );
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FT_FREE( type1->encoding.char_index );
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FT_FREE( type1->encoding.char_name );
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FT_FREE( type1->font_name );
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#ifndef T1_CONFIG_OPTION_NO_AFM
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/* release afm data if present */
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if ( face->afm_data )
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T1_Done_Metrics( memory, (AFM_FontInfo)face->afm_data );
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#endif
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/* release unicode map, if any */
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#if 0
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FT_FREE( face->unicode_map_rec.maps );
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face->unicode_map_rec.num_maps = 0;
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face->unicode_map = NULL;
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#endif
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face->root.family_name = 0;
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face->root.style_name = 0;
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}
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}
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/*************************************************************************/
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/* */
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/* <Function> */
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/* T1_Face_Init */
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/* */
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/* <Description> */
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/* The face object constructor. */
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/* */
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/* <Input> */
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/* stream :: input stream where to load font data. */
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/* */
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/* face_index :: The index of the font face in the resource. */
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/* */
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/* num_params :: Number of additional generic parameters. Ignored. */
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/* */
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/* params :: Additional generic parameters. Ignored. */
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/* */
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/* <InOut> */
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/* face :: The face record to build. */
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/* */
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/* <Return> */
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/* FreeType error code. 0 means success. */
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/* */
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FT_LOCAL_DEF( FT_Error )
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T1_Face_Init( FT_Stream stream,
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T1_Face face,
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FT_Int face_index,
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FT_Int num_params,
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FT_Parameter* params )
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{
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FT_Error error;
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FT_Service_PsCMaps psnames;
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PSAux_Service psaux;
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T1_Font type1 = &face->type1;
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PS_FontInfo info = &type1->font_info;
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FT_UNUSED( num_params );
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FT_UNUSED( params );
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FT_UNUSED( face_index );
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FT_UNUSED( stream );
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face->root.num_faces = 1;
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FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS );
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face->psnames = psnames;
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face->psaux = FT_Get_Module_Interface( FT_FACE_LIBRARY( face ),
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"psaux" );
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psaux = (PSAux_Service)face->psaux;
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face->pshinter = FT_Get_Module_Interface( FT_FACE_LIBRARY( face ),
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"pshinter" );
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/* open the tokenizer; this will also check the font format */
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error = T1_Open_Face( face );
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if ( error )
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goto Exit;
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/* if we just wanted to check the format, leave successfully now */
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if ( face_index < 0 )
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goto Exit;
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/* check the face index */
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if ( face_index != 0 )
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{
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FT_ERROR(( "T1_Face_Init: invalid face index\n" ));
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error = T1_Err_Invalid_Argument;
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goto Exit;
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}
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/* now load the font program into the face object */
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/* initialize the face object fields */
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/* set up root face fields */
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{
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FT_Face root = (FT_Face)&face->root;
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root->num_glyphs = type1->num_glyphs;
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root->face_index = face_index;
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root->face_flags = FT_FACE_FLAG_SCALABLE |
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FT_FACE_FLAG_HORIZONTAL |
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FT_FACE_FLAG_GLYPH_NAMES |
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FT_FACE_FLAG_HINTER;
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if ( info->is_fixed_pitch )
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root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
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if ( face->blend )
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root->face_flags |= FT_FACE_FLAG_MULTIPLE_MASTERS;
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/* XXX: TODO -- add kerning with .afm support */
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/* get style name -- be careful, some broken fonts only */
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/* have a `/FontName' dictionary entry! */
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root->family_name = info->family_name;
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/* assume "Regular" style if we don't know better */
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root->style_name = (char *)"Regular";
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if ( root->family_name )
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{
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char* full = info->full_name;
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char* family = root->family_name;
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if ( full )
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{
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while ( *full )
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{
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if ( *full == *family )
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{
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family++;
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full++;
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}
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else
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{
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if ( *full == ' ' || *full == '-' )
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full++;
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else if ( *family == ' ' || *family == '-' )
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family++;
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else
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{
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if ( !*family )
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root->style_name = full;
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break;
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}
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}
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}
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}
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}
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else
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{
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/* do we have a `/FontName'? */
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if ( type1->font_name )
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root->family_name = type1->font_name;
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}
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/* compute style flags */
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root->style_flags = 0;
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if ( info->italic_angle )
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root->style_flags |= FT_STYLE_FLAG_ITALIC;
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if ( info->weight )
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{
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if ( !ft_strcmp( info->weight, "Bold" ) ||
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!ft_strcmp( info->weight, "Black" ) )
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root->style_flags |= FT_STYLE_FLAG_BOLD;
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}
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/* no embedded bitmap support */
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root->num_fixed_sizes = 0;
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root->available_sizes = 0;
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root->bbox.xMin = type1->font_bbox.xMin >> 16;
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root->bbox.yMin = type1->font_bbox.yMin >> 16;
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root->bbox.xMax = ( type1->font_bbox.xMax + 0xFFFFU ) >> 16;
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root->bbox.yMax = ( type1->font_bbox.yMax + 0xFFFFU ) >> 16;
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/* Set units_per_EM if we didn't set it in parse_font_matrix. */
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if ( !root->units_per_EM )
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root->units_per_EM = 1000;
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root->ascender = (FT_Short)( root->bbox.yMax );
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root->descender = (FT_Short)( root->bbox.yMin );
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root->height = (FT_Short)( ( root->units_per_EM * 12 ) / 10 );
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if ( root->height < root->ascender - root->descender )
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root->height = (FT_Short)( root->ascender - root->descender );
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/* now compute the maximum advance width */
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root->max_advance_width =
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(FT_Short)( root->bbox.xMax );
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{
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FT_Pos max_advance;
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error = T1_Compute_Max_Advance( face, &max_advance );
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/* in case of error, keep the standard width */
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if ( !error )
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root->max_advance_width = (FT_Short)max_advance;
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else
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error = 0; /* clear error */
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}
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root->max_advance_height = root->height;
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root->underline_position = (FT_Short)info->underline_position;
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root->underline_thickness = (FT_Short)info->underline_thickness;
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}
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{
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FT_Face root = &face->root;
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if ( psnames && psaux )
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{
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FT_CharMapRec charmap;
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T1_CMap_Classes cmap_classes = psaux->t1_cmap_classes;
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FT_CMap_Class clazz;
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charmap.face = root;
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/* first of all, try to synthetize a Unicode charmap */
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charmap.platform_id = 3;
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charmap.encoding_id = 1;
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charmap.encoding = FT_ENCODING_UNICODE;
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FT_CMap_New( cmap_classes->unicode, NULL, &charmap, NULL );
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/* now, generate an Adobe Standard encoding when appropriate */
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charmap.platform_id = 7;
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clazz = NULL;
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switch ( type1->encoding_type )
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{
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case T1_ENCODING_TYPE_STANDARD:
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charmap.encoding = FT_ENCODING_ADOBE_STANDARD;
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charmap.encoding_id = TT_ADOBE_ID_STANDARD;
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clazz = cmap_classes->standard;
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break;
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case T1_ENCODING_TYPE_EXPERT:
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charmap.encoding = FT_ENCODING_ADOBE_EXPERT;
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charmap.encoding_id = TT_ADOBE_ID_EXPERT;
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clazz = cmap_classes->expert;
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break;
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case T1_ENCODING_TYPE_ARRAY:
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charmap.encoding = FT_ENCODING_ADOBE_CUSTOM;
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charmap.encoding_id = TT_ADOBE_ID_CUSTOM;
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clazz = cmap_classes->custom;
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break;
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case T1_ENCODING_TYPE_ISOLATIN1:
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charmap.encoding = FT_ENCODING_ADOBE_LATIN_1;
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charmap.encoding_id = TT_ADOBE_ID_LATIN_1;
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clazz = cmap_classes->unicode;
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break;
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default:
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;
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}
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if ( clazz )
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FT_CMap_New( clazz, NULL, &charmap, NULL );
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#if 0
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/* Select default charmap */
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if (root->num_charmaps)
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root->charmap = root->charmaps[0];
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#endif
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}
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}
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Exit:
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return error;
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}
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/*************************************************************************/
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/* */
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/* <Function> */
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/* T1_Driver_Init */
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/* */
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/* <Description> */
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/* Initializes a given Type 1 driver object. */
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/* */
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/* <Input> */
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/* driver :: A handle to the target driver object. */
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/* */
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/* <Return> */
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/* FreeType error code. 0 means success. */
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/* */
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FT_LOCAL_DEF( FT_Error )
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T1_Driver_Init( T1_Driver driver )
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{
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FT_UNUSED( driver );
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return T1_Err_Ok;
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}
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/*************************************************************************/
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/* */
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/* <Function> */
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/* T1_Driver_Done */
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/* */
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/* <Description> */
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/* Finalizes a given Type 1 driver. */
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/* */
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/* <Input> */
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/* driver :: A handle to the target Type 1 driver. */
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/* */
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FT_LOCAL_DEF( void )
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T1_Driver_Done( T1_Driver driver )
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{
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FT_UNUSED( driver );
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}
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/* END */
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