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/****************************************************************************
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*
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* cffgload.c
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*
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* OpenType Glyph Loader (body).
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*
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* Copyright (C) 1996-2019 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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49234
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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_INTERNAL_SFNT_H
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#include FT_INTERNAL_CALC_H
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#include FT_INTERNAL_POSTSCRIPT_AUX_H
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#include FT_OUTLINE_H
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#include FT_DRIVER_H
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#include "cffload.h"
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#include "cffgload.h"
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#include "cfferrs.h"
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54876
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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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49234
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#undef FT_COMPONENT
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54876
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#define FT_COMPONENT cffgload
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49234
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FT_LOCAL_DEF( FT_Error )
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cff_get_glyph_data( TT_Face face,
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FT_UInt glyph_index,
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FT_Byte** pointer,
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FT_ULong* length )
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{
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#ifdef FT_CONFIG_OPTION_INCREMENTAL
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/* For incremental fonts get the character data using the */
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/* callback function. */
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if ( face->root.internal->incremental_interface )
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{
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FT_Data data;
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FT_Error error =
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face->root.internal->incremental_interface->funcs->get_glyph_data(
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face->root.internal->incremental_interface->object,
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glyph_index, &data );
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*pointer = (FT_Byte*)data.pointer;
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*length = (FT_ULong)data.length;
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return error;
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}
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else
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#endif /* FT_CONFIG_OPTION_INCREMENTAL */
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{
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CFF_Font cff = (CFF_Font)(face->extra.data);
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return cff_index_access_element( &cff->charstrings_index, glyph_index,
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pointer, length );
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}
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}
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FT_LOCAL_DEF( void )
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cff_free_glyph_data( TT_Face face,
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FT_Byte** pointer,
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FT_ULong length )
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{
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#ifndef FT_CONFIG_OPTION_INCREMENTAL
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FT_UNUSED( length );
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#endif
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#ifdef FT_CONFIG_OPTION_INCREMENTAL
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/* For incremental fonts get the character data using the */
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/* callback function. */
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if ( face->root.internal->incremental_interface )
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{
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FT_Data data;
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data.pointer = *pointer;
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data.length = (FT_Int)length;
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face->root.internal->incremental_interface->funcs->free_glyph_data(
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face->root.internal->incremental_interface->object, &data );
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}
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else
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#endif /* FT_CONFIG_OPTION_INCREMENTAL */
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{
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CFF_Font cff = (CFF_Font)(face->extra.data);
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cff_index_forget_element( &cff->charstrings_index, pointer );
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}
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}
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/********** *********/
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/********** *********/
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/********** COMPUTE THE MAXIMUM ADVANCE WIDTH *********/
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/********** *********/
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/********** The following code is in charge of computing *********/
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/********** the maximum advance width of the font. It *********/
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/********** quickly processes each glyph charstring to *********/
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/********** extract the value from either a `sbw' or `seac' *********/
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/********** operator. *********/
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/********** *********/
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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#if 0 /* unused until we support pure CFF fonts */
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FT_LOCAL_DEF( FT_Error )
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cff_compute_max_advance( TT_Face face,
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FT_Int* max_advance )
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{
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FT_Error error = FT_Err_Ok;
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CFF_Decoder decoder;
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FT_Int glyph_index;
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CFF_Font cff = (CFF_Font)face->other;
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PSAux_Service psaux = (PSAux_Service)face->psaux;
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const CFF_Decoder_Funcs decoder_funcs = psaux->cff_decoder_funcs;
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*max_advance = 0;
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/* Initialize load decoder */
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decoder_funcs->init( &decoder, face, 0, 0, 0, 0, 0, 0 );
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decoder.builder.metrics_only = 1;
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decoder.builder.load_points = 0;
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/* For each glyph, parse the glyph charstring and extract */
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/* the advance width. */
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for ( glyph_index = 0; glyph_index < face->root.num_glyphs;
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glyph_index++ )
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{
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FT_Byte* charstring;
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FT_ULong charstring_len;
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/* now get load the unscaled outline */
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error = cff_get_glyph_data( face, glyph_index,
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&charstring, &charstring_len );
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if ( !error )
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{
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error = decoder_funcs->prepare( &decoder, size, glyph_index );
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if ( !error )
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error = decoder_funcs->parse_charstrings_old( &decoder,
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charstring,
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charstring_len,
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0 );
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cff_free_glyph_data( face, &charstring, &charstring_len );
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}
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/* ignore the error if one has occurred -- skip to next glyph */
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error = FT_Err_Ok;
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}
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*max_advance = decoder.builder.advance.x;
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return FT_Err_Ok;
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}
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#endif /* 0 */
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FT_LOCAL_DEF( FT_Error )
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cff_slot_load( CFF_GlyphSlot glyph,
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CFF_Size size,
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FT_UInt glyph_index,
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FT_Int32 load_flags )
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{
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FT_Error error;
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CFF_Decoder decoder;
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PS_Decoder psdecoder;
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TT_Face face = (TT_Face)glyph->root.face;
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FT_Bool hinting, scaled, force_scaling;
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CFF_Font cff = (CFF_Font)face->extra.data;
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PSAux_Service psaux = (PSAux_Service)face->psaux;
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const CFF_Decoder_Funcs decoder_funcs = psaux->cff_decoder_funcs;
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FT_Matrix font_matrix;
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FT_Vector font_offset;
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force_scaling = FALSE;
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/* in a CID-keyed font, consider `glyph_index' as a CID and map */
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/* it immediately to the real glyph_index -- if it isn't a */
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/* subsetted font, glyph_indices and CIDs are identical, though */
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if ( cff->top_font.font_dict.cid_registry != 0xFFFFU &&
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cff->charset.cids )
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{
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/* don't handle CID 0 (.notdef) which is directly mapped to GID 0 */
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if ( glyph_index != 0 )
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{
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glyph_index = cff_charset_cid_to_gindex( &cff->charset,
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glyph_index );
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if ( glyph_index == 0 )
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return FT_THROW( Invalid_Argument );
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}
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}
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else if ( glyph_index >= cff->num_glyphs )
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return FT_THROW( Invalid_Argument );
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if ( load_flags & FT_LOAD_NO_RECURSE )
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load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING;
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glyph->x_scale = 0x10000L;
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glyph->y_scale = 0x10000L;
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if ( size )
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{
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glyph->x_scale = size->root.metrics.x_scale;
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glyph->y_scale = size->root.metrics.y_scale;
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}
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#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
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/* try to load embedded bitmap if any */
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/* */
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/* XXX: The convention should be emphasized in */
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/* the documents because it can be confusing. */
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if ( size )
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{
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CFF_Face cff_face = (CFF_Face)size->root.face;
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SFNT_Service sfnt = (SFNT_Service)cff_face->sfnt;
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FT_Stream stream = cff_face->root.stream;
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if ( size->strike_index != 0xFFFFFFFFUL &&
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sfnt->load_eblc &&
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( load_flags & FT_LOAD_NO_BITMAP ) == 0 )
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{
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TT_SBit_MetricsRec metrics;
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error = sfnt->load_sbit_image( face,
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size->strike_index,
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glyph_index,
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(FT_UInt)load_flags,
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stream,
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&glyph->root.bitmap,
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&metrics );
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if ( !error )
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{
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FT_Bool has_vertical_info;
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FT_UShort advance;
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FT_Short dummy;
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glyph->root.outline.n_points = 0;
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glyph->root.outline.n_contours = 0;
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54876
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glyph->root.metrics.width = (FT_Pos)metrics.width * 64;
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glyph->root.metrics.height = (FT_Pos)metrics.height * 64;
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49234
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54876
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glyph->root.metrics.horiBearingX = (FT_Pos)metrics.horiBearingX * 64;
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glyph->root.metrics.horiBearingY = (FT_Pos)metrics.horiBearingY * 64;
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glyph->root.metrics.horiAdvance = (FT_Pos)metrics.horiAdvance * 64;
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49234
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54876
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glyph->root.metrics.vertBearingX = (FT_Pos)metrics.vertBearingX * 64;
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glyph->root.metrics.vertBearingY = (FT_Pos)metrics.vertBearingY * 64;
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glyph->root.metrics.vertAdvance = (FT_Pos)metrics.vertAdvance * 64;
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49234
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293 |
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glyph->root.format = FT_GLYPH_FORMAT_BITMAP;
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295 |
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if ( load_flags & FT_LOAD_VERTICAL_LAYOUT )
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{
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glyph->root.bitmap_left = metrics.vertBearingX;
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glyph->root.bitmap_top = metrics.vertBearingY;
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}
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else
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{
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glyph->root.bitmap_left = metrics.horiBearingX;
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glyph->root.bitmap_top = metrics.horiBearingY;
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}
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306 |
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/* compute linear advance widths */
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308 |
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(void)( (SFNT_Service)face->sfnt )->get_metrics( face, 0,
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glyph_index,
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&dummy,
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&advance );
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glyph->root.linearHoriAdvance = advance;
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314 |
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315 |
has_vertical_info = FT_BOOL(
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face->vertical_info &&
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face->vertical.number_Of_VMetrics > 0 );
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318 |
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/* get the vertical metrics from the vmtx table if we have one */
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320 |
if ( has_vertical_info )
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{
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(void)( (SFNT_Service)face->sfnt )->get_metrics( face, 1,
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glyph_index,
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&dummy,
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&advance );
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326 |
glyph->root.linearVertAdvance = advance;
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}
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328 |
else
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329 |
{
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330 |
/* make up vertical ones */
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331 |
if ( face->os2.version != 0xFFFFU )
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glyph->root.linearVertAdvance = (FT_Pos)
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( face->os2.sTypoAscender - face->os2.sTypoDescender );
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else
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glyph->root.linearVertAdvance = (FT_Pos)
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( face->horizontal.Ascender - face->horizontal.Descender );
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}
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338 |
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return error;
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340 |
}
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341 |
}
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342 |
}
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343 |
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344 |
#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
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345 |
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346 |
/* return immediately if we only want the embedded bitmaps */
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347 |
if ( load_flags & FT_LOAD_SBITS_ONLY )
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348 |
return FT_THROW( Invalid_Argument );
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349 |
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350 |
/* if we have a CID subfont, use its matrix (which has already */
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351 |
/* been multiplied with the root matrix) */
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352 |
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353 |
/* this scaling is only relevant if the PS hinter isn't active */
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354 |
if ( cff->num_subfonts )
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355 |
{
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356 |
FT_Long top_upm, sub_upm;
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357 |
FT_Byte fd_index = cff_fd_select_get( &cff->fd_select,
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358 |
glyph_index );
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359 |
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360 |
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361 |
if ( fd_index >= cff->num_subfonts )
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362 |
fd_index = (FT_Byte)( cff->num_subfonts - 1 );
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363 |
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364 |
top_upm = (FT_Long)cff->top_font.font_dict.units_per_em;
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365 |
sub_upm = (FT_Long)cff->subfonts[fd_index]->font_dict.units_per_em;
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366 |
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367 |
|
|
|
368 |
font_matrix = cff->subfonts[fd_index]->font_dict.font_matrix;
|
|
|
369 |
font_offset = cff->subfonts[fd_index]->font_dict.font_offset;
|
|
|
370 |
|
|
|
371 |
if ( top_upm != sub_upm )
|
|
|
372 |
{
|
|
|
373 |
glyph->x_scale = FT_MulDiv( glyph->x_scale, top_upm, sub_upm );
|
|
|
374 |
glyph->y_scale = FT_MulDiv( glyph->y_scale, top_upm, sub_upm );
|
|
|
375 |
|
|
|
376 |
force_scaling = TRUE;
|
|
|
377 |
}
|
|
|
378 |
}
|
|
|
379 |
else
|
|
|
380 |
{
|
|
|
381 |
font_matrix = cff->top_font.font_dict.font_matrix;
|
|
|
382 |
font_offset = cff->top_font.font_dict.font_offset;
|
|
|
383 |
}
|
|
|
384 |
|
|
|
385 |
glyph->root.outline.n_points = 0;
|
|
|
386 |
glyph->root.outline.n_contours = 0;
|
|
|
387 |
|
|
|
388 |
/* top-level code ensures that FT_LOAD_NO_HINTING is set */
|
|
|
389 |
/* if FT_LOAD_NO_SCALE is active */
|
|
|
390 |
hinting = FT_BOOL( ( load_flags & FT_LOAD_NO_HINTING ) == 0 );
|
|
|
391 |
scaled = FT_BOOL( ( load_flags & FT_LOAD_NO_SCALE ) == 0 );
|
|
|
392 |
|
|
|
393 |
glyph->hint = hinting;
|
|
|
394 |
glyph->scaled = scaled;
|
|
|
395 |
glyph->root.format = FT_GLYPH_FORMAT_OUTLINE; /* by default */
|
|
|
396 |
|
|
|
397 |
{
|
|
|
398 |
#ifdef CFF_CONFIG_OPTION_OLD_ENGINE
|
|
|
399 |
PS_Driver driver = (PS_Driver)FT_FACE_DRIVER( face );
|
|
|
400 |
#endif
|
|
|
401 |
|
|
|
402 |
|
|
|
403 |
FT_Byte* charstring;
|
|
|
404 |
FT_ULong charstring_len;
|
|
|
405 |
|
|
|
406 |
|
|
|
407 |
decoder_funcs->init( &decoder, face, size, glyph, hinting,
|
|
|
408 |
FT_LOAD_TARGET_MODE( load_flags ),
|
|
|
409 |
cff_get_glyph_data,
|
|
|
410 |
cff_free_glyph_data );
|
|
|
411 |
|
|
|
412 |
/* this is for pure CFFs */
|
|
|
413 |
if ( load_flags & FT_LOAD_ADVANCE_ONLY )
|
|
|
414 |
decoder.width_only = TRUE;
|
|
|
415 |
|
|
|
416 |
decoder.builder.no_recurse =
|
|
54876
|
417 |
FT_BOOL( load_flags & FT_LOAD_NO_RECURSE );
|
|
49234
|
418 |
|
|
|
419 |
/* now load the unscaled outline */
|
|
|
420 |
error = cff_get_glyph_data( face, glyph_index,
|
|
|
421 |
&charstring, &charstring_len );
|
|
|
422 |
if ( error )
|
|
|
423 |
goto Glyph_Build_Finished;
|
|
|
424 |
|
|
|
425 |
error = decoder_funcs->prepare( &decoder, size, glyph_index );
|
|
|
426 |
if ( error )
|
|
|
427 |
goto Glyph_Build_Finished;
|
|
|
428 |
|
|
|
429 |
#ifdef CFF_CONFIG_OPTION_OLD_ENGINE
|
|
|
430 |
/* choose which CFF renderer to use */
|
|
|
431 |
if ( driver->hinting_engine == FT_HINTING_FREETYPE )
|
|
|
432 |
error = decoder_funcs->parse_charstrings_old( &decoder,
|
|
|
433 |
charstring,
|
|
|
434 |
charstring_len,
|
|
|
435 |
0 );
|
|
|
436 |
else
|
|
|
437 |
#endif
|
|
|
438 |
{
|
|
|
439 |
psaux->ps_decoder_init( &psdecoder, &decoder, FALSE );
|
|
|
440 |
|
|
|
441 |
error = decoder_funcs->parse_charstrings( &psdecoder,
|
|
|
442 |
charstring,
|
|
|
443 |
charstring_len );
|
|
|
444 |
|
|
|
445 |
/* Adobe's engine uses 16.16 numbers everywhere; */
|
|
|
446 |
/* as a consequence, glyphs larger than 2000ppem get rejected */
|
|
|
447 |
if ( FT_ERR_EQ( error, Glyph_Too_Big ) )
|
|
|
448 |
{
|
|
|
449 |
/* this time, we retry unhinted and scale up the glyph later on */
|
|
|
450 |
/* (the engine uses and sets the hardcoded value 0x10000 / 64 = */
|
|
|
451 |
/* 0x400 for both `x_scale' and `y_scale' in this case) */
|
|
|
452 |
hinting = FALSE;
|
|
|
453 |
force_scaling = TRUE;
|
|
|
454 |
glyph->hint = hinting;
|
|
|
455 |
|
|
|
456 |
error = decoder_funcs->parse_charstrings( &psdecoder,
|
|
|
457 |
charstring,
|
|
|
458 |
charstring_len );
|
|
|
459 |
}
|
|
|
460 |
}
|
|
|
461 |
|
|
|
462 |
cff_free_glyph_data( face, &charstring, charstring_len );
|
|
|
463 |
|
|
|
464 |
if ( error )
|
|
|
465 |
goto Glyph_Build_Finished;
|
|
|
466 |
|
|
|
467 |
#ifdef FT_CONFIG_OPTION_INCREMENTAL
|
|
|
468 |
/* Control data and length may not be available for incremental */
|
|
|
469 |
/* fonts. */
|
|
|
470 |
if ( face->root.internal->incremental_interface )
|
|
|
471 |
{
|
|
|
472 |
glyph->root.control_data = NULL;
|
|
|
473 |
glyph->root.control_len = 0;
|
|
|
474 |
}
|
|
|
475 |
else
|
|
|
476 |
#endif /* FT_CONFIG_OPTION_INCREMENTAL */
|
|
|
477 |
|
|
|
478 |
/* We set control_data and control_len if charstrings is loaded. */
|
|
|
479 |
/* See how charstring loads at cff_index_access_element() in */
|
|
|
480 |
/* cffload.c. */
|
|
|
481 |
{
|
|
|
482 |
CFF_Index csindex = &cff->charstrings_index;
|
|
|
483 |
|
|
|
484 |
|
|
|
485 |
if ( csindex->offsets )
|
|
|
486 |
{
|
|
|
487 |
glyph->root.control_data = csindex->bytes +
|
|
|
488 |
csindex->offsets[glyph_index] - 1;
|
|
|
489 |
glyph->root.control_len = (FT_Long)charstring_len;
|
|
|
490 |
}
|
|
|
491 |
}
|
|
|
492 |
|
|
|
493 |
Glyph_Build_Finished:
|
|
|
494 |
/* save new glyph tables, if no error */
|
|
|
495 |
if ( !error )
|
|
|
496 |
decoder.builder.funcs.done( &decoder.builder );
|
|
|
497 |
/* XXX: anything to do for broken glyph entry? */
|
|
|
498 |
}
|
|
|
499 |
|
|
|
500 |
#ifdef FT_CONFIG_OPTION_INCREMENTAL
|
|
|
501 |
|
|
|
502 |
/* Incremental fonts can optionally override the metrics. */
|
|
|
503 |
if ( !error &&
|
|
|
504 |
face->root.internal->incremental_interface &&
|
|
|
505 |
face->root.internal->incremental_interface->funcs->get_glyph_metrics )
|
|
|
506 |
{
|
|
|
507 |
FT_Incremental_MetricsRec metrics;
|
|
|
508 |
|
|
|
509 |
|
|
|
510 |
metrics.bearing_x = decoder.builder.left_bearing.x;
|
|
|
511 |
metrics.bearing_y = 0;
|
|
|
512 |
metrics.advance = decoder.builder.advance.x;
|
|
|
513 |
metrics.advance_v = decoder.builder.advance.y;
|
|
|
514 |
|
|
|
515 |
error = face->root.internal->incremental_interface->funcs->get_glyph_metrics(
|
|
|
516 |
face->root.internal->incremental_interface->object,
|
|
|
517 |
glyph_index, FALSE, &metrics );
|
|
|
518 |
|
|
|
519 |
decoder.builder.left_bearing.x = metrics.bearing_x;
|
|
|
520 |
decoder.builder.advance.x = metrics.advance;
|
|
|
521 |
decoder.builder.advance.y = metrics.advance_v;
|
|
|
522 |
}
|
|
|
523 |
|
|
|
524 |
#endif /* FT_CONFIG_OPTION_INCREMENTAL */
|
|
|
525 |
|
|
|
526 |
if ( !error )
|
|
|
527 |
{
|
|
|
528 |
/* Now, set the metrics -- this is rather simple, as */
|
|
|
529 |
/* the left side bearing is the xMin, and the top side */
|
|
|
530 |
/* bearing the yMax. */
|
|
|
531 |
|
|
|
532 |
/* For composite glyphs, return only left side bearing and */
|
|
|
533 |
/* advance width. */
|
|
|
534 |
if ( load_flags & FT_LOAD_NO_RECURSE )
|
|
|
535 |
{
|
|
|
536 |
FT_Slot_Internal internal = glyph->root.internal;
|
|
|
537 |
|
|
|
538 |
|
|
|
539 |
glyph->root.metrics.horiBearingX = decoder.builder.left_bearing.x;
|
|
|
540 |
glyph->root.metrics.horiAdvance = decoder.glyph_width;
|
|
|
541 |
internal->glyph_matrix = font_matrix;
|
|
|
542 |
internal->glyph_delta = font_offset;
|
|
|
543 |
internal->glyph_transformed = 1;
|
|
|
544 |
}
|
|
|
545 |
else
|
|
|
546 |
{
|
|
|
547 |
FT_BBox cbox;
|
|
|
548 |
FT_Glyph_Metrics* metrics = &glyph->root.metrics;
|
|
|
549 |
FT_Bool has_vertical_info;
|
|
|
550 |
|
|
|
551 |
|
|
|
552 |
if ( face->horizontal.number_Of_HMetrics )
|
|
|
553 |
{
|
|
|
554 |
FT_Short horiBearingX = 0;
|
|
|
555 |
FT_UShort horiAdvance = 0;
|
|
|
556 |
|
|
|
557 |
|
|
|
558 |
( (SFNT_Service)face->sfnt )->get_metrics( face, 0,
|
|
|
559 |
glyph_index,
|
|
|
560 |
&horiBearingX,
|
|
|
561 |
&horiAdvance );
|
|
|
562 |
metrics->horiAdvance = horiAdvance;
|
|
|
563 |
metrics->horiBearingX = horiBearingX;
|
|
|
564 |
glyph->root.linearHoriAdvance = horiAdvance;
|
|
|
565 |
}
|
|
|
566 |
else
|
|
|
567 |
{
|
|
|
568 |
/* copy the _unscaled_ advance width */
|
|
|
569 |
metrics->horiAdvance = decoder.glyph_width;
|
|
|
570 |
glyph->root.linearHoriAdvance = decoder.glyph_width;
|
|
|
571 |
}
|
|
|
572 |
|
|
|
573 |
glyph->root.internal->glyph_transformed = 0;
|
|
|
574 |
|
|
|
575 |
has_vertical_info = FT_BOOL( face->vertical_info &&
|
|
|
576 |
face->vertical.number_Of_VMetrics > 0 );
|
|
|
577 |
|
|
|
578 |
/* get the vertical metrics from the vmtx table if we have one */
|
|
|
579 |
if ( has_vertical_info )
|
|
|
580 |
{
|
|
|
581 |
FT_Short vertBearingY = 0;
|
|
|
582 |
FT_UShort vertAdvance = 0;
|
|
|
583 |
|
|
|
584 |
|
|
|
585 |
( (SFNT_Service)face->sfnt )->get_metrics( face, 1,
|
|
|
586 |
glyph_index,
|
|
|
587 |
&vertBearingY,
|
|
|
588 |
&vertAdvance );
|
|
|
589 |
metrics->vertBearingY = vertBearingY;
|
|
|
590 |
metrics->vertAdvance = vertAdvance;
|
|
|
591 |
}
|
|
|
592 |
else
|
|
|
593 |
{
|
|
|
594 |
/* make up vertical ones */
|
|
|
595 |
if ( face->os2.version != 0xFFFFU )
|
|
|
596 |
metrics->vertAdvance = (FT_Pos)( face->os2.sTypoAscender -
|
|
|
597 |
face->os2.sTypoDescender );
|
|
|
598 |
else
|
|
|
599 |
metrics->vertAdvance = (FT_Pos)( face->horizontal.Ascender -
|
|
|
600 |
face->horizontal.Descender );
|
|
|
601 |
}
|
|
|
602 |
|
|
|
603 |
glyph->root.linearVertAdvance = metrics->vertAdvance;
|
|
|
604 |
|
|
|
605 |
glyph->root.format = FT_GLYPH_FORMAT_OUTLINE;
|
|
|
606 |
|
|
|
607 |
glyph->root.outline.flags = 0;
|
|
|
608 |
if ( size && size->root.metrics.y_ppem < 24 )
|
|
|
609 |
glyph->root.outline.flags |= FT_OUTLINE_HIGH_PRECISION;
|
|
|
610 |
|
|
|
611 |
glyph->root.outline.flags |= FT_OUTLINE_REVERSE_FILL;
|
|
|
612 |
|
|
|
613 |
/* apply the font matrix, if any */
|
|
|
614 |
if ( font_matrix.xx != 0x10000L || font_matrix.yy != 0x10000L ||
|
|
|
615 |
font_matrix.xy != 0 || font_matrix.yx != 0 )
|
|
|
616 |
{
|
|
|
617 |
FT_Outline_Transform( &glyph->root.outline, &font_matrix );
|
|
|
618 |
|
|
|
619 |
metrics->horiAdvance = FT_MulFix( metrics->horiAdvance,
|
|
|
620 |
font_matrix.xx );
|
|
|
621 |
metrics->vertAdvance = FT_MulFix( metrics->vertAdvance,
|
|
|
622 |
font_matrix.yy );
|
|
|
623 |
}
|
|
|
624 |
|
|
|
625 |
if ( font_offset.x || font_offset.y )
|
|
|
626 |
{
|
|
|
627 |
FT_Outline_Translate( &glyph->root.outline,
|
|
|
628 |
font_offset.x,
|
|
|
629 |
font_offset.y );
|
|
|
630 |
|
|
|
631 |
metrics->horiAdvance += font_offset.x;
|
|
|
632 |
metrics->vertAdvance += font_offset.y;
|
|
|
633 |
}
|
|
|
634 |
|
|
|
635 |
if ( ( load_flags & FT_LOAD_NO_SCALE ) == 0 || force_scaling )
|
|
|
636 |
{
|
|
|
637 |
/* scale the outline and the metrics */
|
|
|
638 |
FT_Int n;
|
|
|
639 |
FT_Outline* cur = &glyph->root.outline;
|
|
|
640 |
FT_Vector* vec = cur->points;
|
|
|
641 |
FT_Fixed x_scale = glyph->x_scale;
|
|
|
642 |
FT_Fixed y_scale = glyph->y_scale;
|
|
|
643 |
|
|
|
644 |
|
|
|
645 |
/* First of all, scale the points */
|
|
|
646 |
if ( !hinting || !decoder.builder.hints_funcs )
|
|
|
647 |
for ( n = cur->n_points; n > 0; n--, vec++ )
|
|
|
648 |
{
|
|
|
649 |
vec->x = FT_MulFix( vec->x, x_scale );
|
|
|
650 |
vec->y = FT_MulFix( vec->y, y_scale );
|
|
|
651 |
}
|
|
|
652 |
|
|
|
653 |
/* Then scale the metrics */
|
|
|
654 |
metrics->horiAdvance = FT_MulFix( metrics->horiAdvance, x_scale );
|
|
|
655 |
metrics->vertAdvance = FT_MulFix( metrics->vertAdvance, y_scale );
|
|
|
656 |
}
|
|
|
657 |
|
|
|
658 |
/* compute the other metrics */
|
|
|
659 |
FT_Outline_Get_CBox( &glyph->root.outline, &cbox );
|
|
|
660 |
|
|
|
661 |
metrics->width = cbox.xMax - cbox.xMin;
|
|
|
662 |
metrics->height = cbox.yMax - cbox.yMin;
|
|
|
663 |
|
|
|
664 |
metrics->horiBearingX = cbox.xMin;
|
|
|
665 |
metrics->horiBearingY = cbox.yMax;
|
|
|
666 |
|
|
|
667 |
if ( has_vertical_info )
|
|
|
668 |
metrics->vertBearingX = metrics->horiBearingX -
|
|
|
669 |
metrics->horiAdvance / 2;
|
|
|
670 |
else
|
|
|
671 |
{
|
|
|
672 |
if ( load_flags & FT_LOAD_VERTICAL_LAYOUT )
|
|
|
673 |
ft_synthesize_vertical_metrics( metrics,
|
|
|
674 |
metrics->vertAdvance );
|
|
|
675 |
}
|
|
|
676 |
}
|
|
|
677 |
}
|
|
|
678 |
|
|
|
679 |
return error;
|
|
|
680 |
}
|
|
|
681 |
|
|
|
682 |
|
|
|
683 |
/* END */
|