1165 lines
34 KiB
C
1165 lines
34 KiB
C
/****************************************************************************
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*
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* cffdrivr.c
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*
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* OpenType font driver implementation (body).
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*
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* Copyright (C) 1996-2022 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 <freetype/freetype.h>
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#include <freetype/internal/ftdebug.h>
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#include <freetype/internal/ftstream.h>
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#include <freetype/internal/sfnt.h>
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#include <freetype/internal/psaux.h>
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#include <freetype/internal/ftpsprop.h>
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#include <freetype/internal/services/svcid.h>
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#include <freetype/internal/services/svpsinfo.h>
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#include <freetype/internal/services/svpostnm.h>
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#include <freetype/internal/services/svttcmap.h>
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#include <freetype/internal/services/svcfftl.h>
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#include "cffdrivr.h"
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#include "cffgload.h"
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#include "cffload.h"
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#include "cffcmap.h"
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#include "cffparse.h"
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#include "cffobjs.h"
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#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
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#include <freetype/internal/services/svmm.h>
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#include <freetype/internal/services/svmetric.h>
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#endif
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#include "cfferrs.h"
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#include <freetype/internal/services/svfntfmt.h>
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#include <freetype/internal/services/svgldict.h>
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#include <freetype/internal/services/svprop.h>
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#include <freetype/ftdriver.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 cffdriver
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/**** ****/
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/**** ****/
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/**** F A C E S ****/
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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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* @Function:
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* cff_get_kerning
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*
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* @Description:
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* A driver method used to return the kerning vector between two
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* glyphs of the same face.
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*
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* @Input:
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* face ::
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* A handle to the source face object.
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*
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* left_glyph ::
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* The index of the left glyph in the kern pair.
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*
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* right_glyph ::
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* The index of the right glyph in the kern pair.
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*
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* @Output:
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* kerning ::
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* The kerning vector. This is in font units for
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* scalable formats, and in pixels for fixed-sizes
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* formats.
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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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* @Note:
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* Only horizontal layouts (left-to-right & right-to-left) are
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* supported by this function. Other layouts, or more sophisticated
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* kernings, are out of scope of this method (the basic driver
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* interface is meant to be simple).
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*
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* They can be implemented by format-specific interfaces.
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*/
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FT_CALLBACK_DEF( FT_Error )
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cff_get_kerning( FT_Face ttface, /* TT_Face */
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FT_UInt left_glyph,
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FT_UInt right_glyph,
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FT_Vector* kerning )
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{
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TT_Face face = (TT_Face)ttface;
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SFNT_Service sfnt = (SFNT_Service)face->sfnt;
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kerning->x = 0;
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kerning->y = 0;
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if ( sfnt )
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kerning->x = sfnt->get_kerning( face, left_glyph, right_glyph );
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return FT_Err_Ok;
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}
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/**************************************************************************
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*
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* @Function:
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* cff_glyph_load
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*
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* @Description:
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* A driver method used to load a glyph within a given glyph slot.
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*
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* @Input:
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* slot ::
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* A handle to the target slot object where the glyph
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* will be loaded.
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*
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* size ::
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* A handle to the source face size at which the glyph
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* must be scaled, loaded, etc.
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*
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* glyph_index ::
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* The index of the glyph in the font file.
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*
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* load_flags ::
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* A flag indicating what to load for this glyph. The
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* FT_LOAD_??? constants can be used to control the
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* glyph loading process (e.g., whether the outline
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* should be scaled, whether to load bitmaps or not,
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* whether to hint the outline, etc).
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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_CALLBACK_DEF( FT_Error )
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cff_glyph_load( FT_GlyphSlot cffslot, /* CFF_GlyphSlot */
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FT_Size cffsize, /* CFF_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_GlyphSlot slot = (CFF_GlyphSlot)cffslot;
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CFF_Size size = (CFF_Size)cffsize;
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if ( !slot )
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return FT_THROW( Invalid_Slot_Handle );
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FT_TRACE1(( "cff_glyph_load: glyph index %d\n", glyph_index ));
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/* check whether we want a scaled outline or bitmap */
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if ( !size )
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load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING;
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/* reset the size object if necessary */
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if ( load_flags & FT_LOAD_NO_SCALE )
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size = NULL;
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if ( size )
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{
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/* these two objects must have the same parent */
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if ( cffsize->face != cffslot->face )
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return FT_THROW( Invalid_Face_Handle );
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}
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/* now load the glyph outline if necessary */
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error = cff_slot_load( slot, size, glyph_index, load_flags );
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/* force drop-out mode to 2 - irrelevant now */
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/* slot->outline.dropout_mode = 2; */
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return error;
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}
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FT_CALLBACK_DEF( FT_Error )
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cff_get_advances( FT_Face face,
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FT_UInt start,
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FT_UInt count,
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FT_Int32 flags,
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FT_Fixed* advances )
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{
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FT_UInt nn;
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FT_Error error = FT_Err_Ok;
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FT_GlyphSlot slot = face->glyph;
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if ( FT_IS_SFNT( face ) )
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{
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/* OpenType 1.7 mandates that the data from `hmtx' table be used; */
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/* it is no longer necessary that those values are identical to */
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/* the values in the `CFF' table */
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TT_Face ttface = (TT_Face)face;
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FT_Short dummy;
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if ( flags & FT_LOAD_VERTICAL_LAYOUT )
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{
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#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
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/* no fast retrieval for blended MM fonts without VVAR table */
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if ( ( FT_IS_NAMED_INSTANCE( face ) || FT_IS_VARIATION( face ) ) &&
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!( ttface->variation_support & TT_FACE_FLAG_VAR_VADVANCE ) )
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return FT_THROW( Unimplemented_Feature );
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#endif
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/* check whether we have data from the `vmtx' table at all; */
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/* otherwise we extract the info from the CFF glyphstrings */
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/* (instead of synthesizing a global value using the `OS/2' */
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/* table) */
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if ( !ttface->vertical_info )
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goto Missing_Table;
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for ( nn = 0; nn < count; nn++ )
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{
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FT_UShort ah;
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( (SFNT_Service)ttface->sfnt )->get_metrics( ttface,
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1,
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start + nn,
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&dummy,
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&ah );
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FT_TRACE5(( " idx %d: advance height %d font unit%s\n",
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start + nn,
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ah,
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ah == 1 ? "" : "s" ));
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advances[nn] = ah;
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}
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}
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else
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{
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#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
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/* no fast retrieval for blended MM fonts without HVAR table */
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if ( ( FT_IS_NAMED_INSTANCE( face ) || FT_IS_VARIATION( face ) ) &&
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!( ttface->variation_support & TT_FACE_FLAG_VAR_HADVANCE ) )
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return FT_THROW( Unimplemented_Feature );
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#endif
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/* check whether we have data from the `hmtx' table at all */
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if ( !ttface->horizontal.number_Of_HMetrics )
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goto Missing_Table;
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for ( nn = 0; nn < count; nn++ )
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{
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FT_UShort aw;
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( (SFNT_Service)ttface->sfnt )->get_metrics( ttface,
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0,
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start + nn,
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&dummy,
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&aw );
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FT_TRACE5(( " idx %d: advance width %d font unit%s\n",
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start + nn,
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aw,
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aw == 1 ? "" : "s" ));
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advances[nn] = aw;
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}
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}
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return error;
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}
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Missing_Table:
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flags |= (FT_UInt32)FT_LOAD_ADVANCE_ONLY;
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for ( nn = 0; nn < count; nn++ )
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{
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error = cff_glyph_load( slot, face->size, start + nn, flags );
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if ( error )
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break;
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advances[nn] = ( flags & FT_LOAD_VERTICAL_LAYOUT )
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? slot->linearVertAdvance
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: slot->linearHoriAdvance;
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}
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return error;
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}
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/*
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* GLYPH DICT SERVICE
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*
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*/
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static FT_Error
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cff_get_glyph_name( CFF_Face face,
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FT_UInt glyph_index,
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FT_Pointer buffer,
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FT_UInt buffer_max )
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{
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CFF_Font font = (CFF_Font)face->extra.data;
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FT_String* gname;
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FT_UShort sid;
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FT_Error error;
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/* CFF2 table does not have glyph names; */
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/* we need to use `post' table method */
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if ( font->version_major == 2 )
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{
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FT_Library library = FT_FACE_LIBRARY( face );
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FT_Module sfnt_module = FT_Get_Module( library, "sfnt" );
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FT_Service_GlyphDict service =
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(FT_Service_GlyphDict)ft_module_get_service(
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sfnt_module,
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FT_SERVICE_ID_GLYPH_DICT,
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0 );
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if ( service && service->get_name )
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return service->get_name( FT_FACE( face ),
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glyph_index,
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buffer,
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buffer_max );
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else
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{
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FT_ERROR(( "cff_get_glyph_name:"
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" cannot get glyph name from a CFF2 font\n" ));
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FT_ERROR(( " "
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" without the `psnames' module\n" ));
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error = FT_THROW( Missing_Module );
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goto Exit;
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}
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}
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if ( !font->psnames )
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{
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FT_ERROR(( "cff_get_glyph_name:"
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" cannot get glyph name from CFF & CEF fonts\n" ));
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FT_ERROR(( " "
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" without the `psnames' module\n" ));
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error = FT_THROW( Missing_Module );
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goto Exit;
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}
|
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/* first, locate the sid in the charset table */
|
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sid = font->charset.sids[glyph_index];
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|
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/* now, lookup the name itself */
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gname = cff_index_get_sid_string( font, sid );
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if ( gname )
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FT_STRCPYN( buffer, gname, buffer_max );
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error = FT_Err_Ok;
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Exit:
|
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return error;
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}
|
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static FT_UInt
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cff_get_name_index( CFF_Face face,
|
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const FT_String* glyph_name )
|
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{
|
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CFF_Font cff;
|
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CFF_Charset charset;
|
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FT_Service_PsCMaps psnames;
|
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FT_String* name;
|
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FT_UShort sid;
|
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FT_UInt i;
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|
|
|
|
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cff = (CFF_FontRec *)face->extra.data;
|
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charset = &cff->charset;
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|
|
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/* CFF2 table does not have glyph names; */
|
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/* we need to use `post' table method */
|
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if ( cff->version_major == 2 )
|
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{
|
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FT_Library library = FT_FACE_LIBRARY( face );
|
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FT_Module sfnt_module = FT_Get_Module( library, "sfnt" );
|
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FT_Service_GlyphDict service =
|
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(FT_Service_GlyphDict)ft_module_get_service(
|
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sfnt_module,
|
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FT_SERVICE_ID_GLYPH_DICT,
|
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0 );
|
|
|
|
|
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if ( service && service->name_index )
|
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return service->name_index( FT_FACE( face ), glyph_name );
|
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else
|
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{
|
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FT_ERROR(( "cff_get_name_index:"
|
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" cannot get glyph index from a CFF2 font\n" ));
|
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FT_ERROR(( " "
|
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" without the `psnames' module\n" ));
|
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return 0;
|
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}
|
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}
|
|
|
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FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS );
|
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if ( !psnames )
|
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return 0;
|
|
|
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for ( i = 0; i < cff->num_glyphs; i++ )
|
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{
|
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sid = charset->sids[i];
|
|
|
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if ( sid > 390 )
|
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name = cff_index_get_string( cff, sid - 391 );
|
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else
|
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name = (FT_String *)psnames->adobe_std_strings( sid );
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|
|
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if ( !name )
|
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continue;
|
|
|
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if ( !ft_strcmp( glyph_name, name ) )
|
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return i;
|
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}
|
|
|
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return 0;
|
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}
|
|
|
|
|
|
FT_DEFINE_SERVICE_GLYPHDICTREC(
|
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cff_service_glyph_dict,
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|
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(FT_GlyphDict_GetNameFunc) cff_get_glyph_name, /* get_name */
|
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(FT_GlyphDict_NameIndexFunc)cff_get_name_index /* name_index */
|
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)
|
|
|
|
|
|
/*
|
|
* POSTSCRIPT INFO SERVICE
|
|
*
|
|
*/
|
|
|
|
static FT_Int
|
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cff_ps_has_glyph_names( FT_Face face )
|
|
{
|
|
return ( face->face_flags & FT_FACE_FLAG_GLYPH_NAMES ) > 0;
|
|
}
|
|
|
|
|
|
static FT_Error
|
|
cff_ps_get_font_info( CFF_Face face,
|
|
PS_FontInfoRec* afont_info )
|
|
{
|
|
CFF_Font cff = (CFF_Font)face->extra.data;
|
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FT_Error error = FT_Err_Ok;
|
|
|
|
|
|
if ( cff && !cff->font_info )
|
|
{
|
|
CFF_FontRecDict dict = &cff->top_font.font_dict;
|
|
FT_Memory memory = face->root.memory;
|
|
PS_FontInfoRec* font_info = NULL;
|
|
|
|
|
|
if ( FT_QNEW( font_info ) )
|
|
goto Fail;
|
|
|
|
font_info->version = cff_index_get_sid_string( cff,
|
|
dict->version );
|
|
font_info->notice = cff_index_get_sid_string( cff,
|
|
dict->notice );
|
|
font_info->full_name = cff_index_get_sid_string( cff,
|
|
dict->full_name );
|
|
font_info->family_name = cff_index_get_sid_string( cff,
|
|
dict->family_name );
|
|
font_info->weight = cff_index_get_sid_string( cff,
|
|
dict->weight );
|
|
font_info->italic_angle = dict->italic_angle;
|
|
font_info->is_fixed_pitch = dict->is_fixed_pitch;
|
|
font_info->underline_position = (FT_Short)dict->underline_position;
|
|
font_info->underline_thickness = (FT_UShort)dict->underline_thickness;
|
|
|
|
cff->font_info = font_info;
|
|
}
|
|
|
|
if ( cff )
|
|
*afont_info = *cff->font_info;
|
|
|
|
Fail:
|
|
return error;
|
|
}
|
|
|
|
|
|
static FT_Error
|
|
cff_ps_get_font_extra( CFF_Face face,
|
|
PS_FontExtraRec* afont_extra )
|
|
{
|
|
CFF_Font cff = (CFF_Font)face->extra.data;
|
|
FT_Error error = FT_Err_Ok;
|
|
|
|
|
|
if ( cff && !cff->font_extra )
|
|
{
|
|
CFF_FontRecDict dict = &cff->top_font.font_dict;
|
|
FT_Memory memory = face->root.memory;
|
|
PS_FontExtraRec* font_extra = NULL;
|
|
FT_String* embedded_postscript;
|
|
|
|
|
|
if ( FT_QNEW( font_extra ) )
|
|
goto Fail;
|
|
|
|
font_extra->fs_type = 0U;
|
|
|
|
embedded_postscript = cff_index_get_sid_string(
|
|
cff,
|
|
dict->embedded_postscript );
|
|
if ( embedded_postscript )
|
|
{
|
|
FT_String* start_fstype;
|
|
FT_String* start_def;
|
|
|
|
|
|
/* Identify the XYZ integer in `/FSType XYZ def' substring. */
|
|
if ( ( start_fstype = ft_strstr( embedded_postscript,
|
|
"/FSType" ) ) != NULL &&
|
|
( start_def = ft_strstr( start_fstype +
|
|
sizeof ( "/FSType" ) - 1,
|
|
"def" ) ) != NULL )
|
|
{
|
|
FT_String* s;
|
|
|
|
|
|
for ( s = start_fstype + sizeof ( "/FSType" ) - 1;
|
|
s != start_def;
|
|
s++ )
|
|
{
|
|
if ( *s >= '0' && *s <= '9' )
|
|
{
|
|
if ( font_extra->fs_type >= ( FT_USHORT_MAX - 9 ) / 10 )
|
|
{
|
|
/* Overflow - ignore the FSType value. */
|
|
font_extra->fs_type = 0U;
|
|
break;
|
|
}
|
|
|
|
font_extra->fs_type *= 10;
|
|
font_extra->fs_type += (FT_UShort)( *s - '0' );
|
|
}
|
|
else if ( *s != ' ' && *s != '\n' && *s != '\r' )
|
|
{
|
|
/* Non-whitespace character between `/FSType' and next `def' */
|
|
/* - ignore the FSType value. */
|
|
font_extra->fs_type = 0U;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
cff->font_extra = font_extra;
|
|
}
|
|
|
|
if ( cff )
|
|
*afont_extra = *cff->font_extra;
|
|
|
|
Fail:
|
|
return error;
|
|
}
|
|
|
|
|
|
FT_DEFINE_SERVICE_PSINFOREC(
|
|
cff_service_ps_info,
|
|
|
|
(PS_GetFontInfoFunc) cff_ps_get_font_info, /* ps_get_font_info */
|
|
(PS_GetFontExtraFunc) cff_ps_get_font_extra, /* ps_get_font_extra */
|
|
(PS_HasGlyphNamesFunc) cff_ps_has_glyph_names, /* ps_has_glyph_names */
|
|
/* unsupported with CFF fonts */
|
|
(PS_GetFontPrivateFunc)NULL, /* ps_get_font_private */
|
|
/* not implemented */
|
|
(PS_GetFontValueFunc) NULL /* ps_get_font_value */
|
|
)
|
|
|
|
|
|
/*
|
|
* POSTSCRIPT NAME SERVICE
|
|
*
|
|
*/
|
|
|
|
static const char*
|
|
cff_get_ps_name( CFF_Face face )
|
|
{
|
|
CFF_Font cff = (CFF_Font)face->extra.data;
|
|
SFNT_Service sfnt = (SFNT_Service)face->sfnt;
|
|
|
|
|
|
/* following the OpenType specification 1.7, we return the name stored */
|
|
/* in the `name' table for a CFF wrapped into an SFNT container */
|
|
|
|
if ( FT_IS_SFNT( FT_FACE( face ) ) && sfnt )
|
|
{
|
|
FT_Library library = FT_FACE_LIBRARY( face );
|
|
FT_Module sfnt_module = FT_Get_Module( library, "sfnt" );
|
|
FT_Service_PsFontName service =
|
|
(FT_Service_PsFontName)ft_module_get_service(
|
|
sfnt_module,
|
|
FT_SERVICE_ID_POSTSCRIPT_FONT_NAME,
|
|
0 );
|
|
|
|
|
|
if ( service && service->get_ps_font_name )
|
|
return service->get_ps_font_name( FT_FACE( face ) );
|
|
}
|
|
|
|
return (const char*)cff->font_name;
|
|
}
|
|
|
|
|
|
FT_DEFINE_SERVICE_PSFONTNAMEREC(
|
|
cff_service_ps_name,
|
|
|
|
(FT_PsName_GetFunc)cff_get_ps_name /* get_ps_font_name */
|
|
)
|
|
|
|
|
|
/*
|
|
* TT CMAP INFO
|
|
*
|
|
* If the charmap is a synthetic Unicode encoding cmap or
|
|
* a Type 1 standard (or expert) encoding cmap, hide TT CMAP INFO
|
|
* service defined in SFNT module.
|
|
*
|
|
* Otherwise call the service function in the sfnt module.
|
|
*
|
|
*/
|
|
static FT_Error
|
|
cff_get_cmap_info( FT_CharMap charmap,
|
|
TT_CMapInfo *cmap_info )
|
|
{
|
|
FT_CMap cmap = FT_CMAP( charmap );
|
|
FT_Error error = FT_Err_Ok;
|
|
|
|
FT_Face face = FT_CMAP_FACE( cmap );
|
|
FT_Library library = FT_FACE_LIBRARY( face );
|
|
|
|
|
|
if ( cmap->clazz != &cff_cmap_encoding_class_rec &&
|
|
cmap->clazz != &cff_cmap_unicode_class_rec )
|
|
{
|
|
FT_Module sfnt = FT_Get_Module( library, "sfnt" );
|
|
FT_Service_TTCMaps service =
|
|
(FT_Service_TTCMaps)ft_module_get_service( sfnt,
|
|
FT_SERVICE_ID_TT_CMAP,
|
|
0 );
|
|
|
|
|
|
if ( service && service->get_cmap_info )
|
|
error = service->get_cmap_info( charmap, cmap_info );
|
|
}
|
|
else
|
|
error = FT_THROW( Invalid_CharMap_Format );
|
|
|
|
return error;
|
|
}
|
|
|
|
|
|
FT_DEFINE_SERVICE_TTCMAPSREC(
|
|
cff_service_get_cmap_info,
|
|
|
|
(TT_CMap_Info_GetFunc)cff_get_cmap_info /* get_cmap_info */
|
|
)
|
|
|
|
|
|
/*
|
|
* CID INFO SERVICE
|
|
*
|
|
*/
|
|
static FT_Error
|
|
cff_get_ros( CFF_Face face,
|
|
const char* *registry,
|
|
const char* *ordering,
|
|
FT_Int *supplement )
|
|
{
|
|
FT_Error error = FT_Err_Ok;
|
|
CFF_Font cff = (CFF_Font)face->extra.data;
|
|
|
|
|
|
if ( cff )
|
|
{
|
|
CFF_FontRecDict dict = &cff->top_font.font_dict;
|
|
|
|
|
|
if ( dict->cid_registry == 0xFFFFU )
|
|
{
|
|
error = FT_THROW( Invalid_Argument );
|
|
goto Fail;
|
|
}
|
|
|
|
if ( registry )
|
|
{
|
|
if ( !cff->registry )
|
|
cff->registry = cff_index_get_sid_string( cff,
|
|
dict->cid_registry );
|
|
*registry = cff->registry;
|
|
}
|
|
|
|
if ( ordering )
|
|
{
|
|
if ( !cff->ordering )
|
|
cff->ordering = cff_index_get_sid_string( cff,
|
|
dict->cid_ordering );
|
|
*ordering = cff->ordering;
|
|
}
|
|
|
|
/*
|
|
* XXX: According to Adobe TechNote #5176, the supplement in CFF
|
|
* can be a real number. We truncate it to fit public API
|
|
* since freetype-2.3.6.
|
|
*/
|
|
if ( supplement )
|
|
{
|
|
if ( dict->cid_supplement < FT_INT_MIN ||
|
|
dict->cid_supplement > FT_INT_MAX )
|
|
FT_TRACE1(( "cff_get_ros: too large supplement %ld is truncated\n",
|
|
dict->cid_supplement ));
|
|
*supplement = (FT_Int)dict->cid_supplement;
|
|
}
|
|
}
|
|
|
|
Fail:
|
|
return error;
|
|
}
|
|
|
|
|
|
static FT_Error
|
|
cff_get_is_cid( CFF_Face face,
|
|
FT_Bool *is_cid )
|
|
{
|
|
FT_Error error = FT_Err_Ok;
|
|
CFF_Font cff = (CFF_Font)face->extra.data;
|
|
|
|
|
|
*is_cid = 0;
|
|
|
|
if ( cff )
|
|
{
|
|
CFF_FontRecDict dict = &cff->top_font.font_dict;
|
|
|
|
|
|
if ( dict->cid_registry != 0xFFFFU )
|
|
*is_cid = 1;
|
|
}
|
|
|
|
return error;
|
|
}
|
|
|
|
|
|
static FT_Error
|
|
cff_get_cid_from_glyph_index( CFF_Face face,
|
|
FT_UInt glyph_index,
|
|
FT_UInt *cid )
|
|
{
|
|
FT_Error error = FT_Err_Ok;
|
|
CFF_Font cff;
|
|
|
|
|
|
cff = (CFF_Font)face->extra.data;
|
|
|
|
if ( cff )
|
|
{
|
|
FT_UInt c;
|
|
CFF_FontRecDict dict = &cff->top_font.font_dict;
|
|
|
|
|
|
if ( dict->cid_registry == 0xFFFFU )
|
|
{
|
|
error = FT_THROW( Invalid_Argument );
|
|
goto Fail;
|
|
}
|
|
|
|
if ( glyph_index >= cff->num_glyphs )
|
|
{
|
|
error = FT_THROW( Invalid_Argument );
|
|
goto Fail;
|
|
}
|
|
|
|
c = cff->charset.sids[glyph_index];
|
|
|
|
if ( cid )
|
|
*cid = c;
|
|
}
|
|
|
|
Fail:
|
|
return error;
|
|
}
|
|
|
|
|
|
FT_DEFINE_SERVICE_CIDREC(
|
|
cff_service_cid_info,
|
|
|
|
(FT_CID_GetRegistryOrderingSupplementFunc)
|
|
cff_get_ros, /* get_ros */
|
|
(FT_CID_GetIsInternallyCIDKeyedFunc)
|
|
cff_get_is_cid, /* get_is_cid */
|
|
(FT_CID_GetCIDFromGlyphIndexFunc)
|
|
cff_get_cid_from_glyph_index /* get_cid_from_glyph_index */
|
|
)
|
|
|
|
|
|
/*
|
|
* PROPERTY SERVICE
|
|
*
|
|
*/
|
|
|
|
FT_DEFINE_SERVICE_PROPERTIESREC(
|
|
cff_service_properties,
|
|
|
|
(FT_Properties_SetFunc)ps_property_set, /* set_property */
|
|
(FT_Properties_GetFunc)ps_property_get ) /* get_property */
|
|
|
|
|
|
#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
|
|
|
|
/*
|
|
* MULTIPLE MASTER SERVICE
|
|
*
|
|
*/
|
|
|
|
static FT_Error
|
|
cff_set_mm_blend( CFF_Face face,
|
|
FT_UInt num_coords,
|
|
FT_Fixed* coords )
|
|
{
|
|
FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm;
|
|
|
|
|
|
return mm->set_mm_blend( FT_FACE( face ), num_coords, coords );
|
|
}
|
|
|
|
|
|
static FT_Error
|
|
cff_get_mm_blend( CFF_Face face,
|
|
FT_UInt num_coords,
|
|
FT_Fixed* coords )
|
|
{
|
|
FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm;
|
|
|
|
|
|
return mm->get_mm_blend( FT_FACE( face ), num_coords, coords );
|
|
}
|
|
|
|
|
|
static FT_Error
|
|
cff_set_mm_weightvector( CFF_Face face,
|
|
FT_UInt len,
|
|
FT_Fixed* weightvector )
|
|
{
|
|
FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm;
|
|
|
|
|
|
return mm->set_mm_weightvector( FT_FACE( face ), len, weightvector );
|
|
}
|
|
|
|
|
|
static FT_Error
|
|
cff_get_mm_weightvector( CFF_Face face,
|
|
FT_UInt* len,
|
|
FT_Fixed* weightvector )
|
|
{
|
|
FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm;
|
|
|
|
|
|
return mm->get_mm_weightvector( FT_FACE( face ), len, weightvector );
|
|
}
|
|
|
|
|
|
static FT_Error
|
|
cff_get_mm_var( CFF_Face face,
|
|
FT_MM_Var* *master )
|
|
{
|
|
FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm;
|
|
|
|
|
|
return mm->get_mm_var( FT_FACE( face ), master );
|
|
}
|
|
|
|
|
|
static FT_Error
|
|
cff_set_var_design( CFF_Face face,
|
|
FT_UInt num_coords,
|
|
FT_Fixed* coords )
|
|
{
|
|
FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm;
|
|
|
|
|
|
return mm->set_var_design( FT_FACE( face ), num_coords, coords );
|
|
}
|
|
|
|
|
|
static FT_Error
|
|
cff_get_var_design( CFF_Face face,
|
|
FT_UInt num_coords,
|
|
FT_Fixed* coords )
|
|
{
|
|
FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm;
|
|
|
|
|
|
return mm->get_var_design( FT_FACE( face ), num_coords, coords );
|
|
}
|
|
|
|
|
|
static FT_Error
|
|
cff_set_instance( CFF_Face face,
|
|
FT_UInt instance_index )
|
|
{
|
|
FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm;
|
|
|
|
|
|
return mm->set_instance( FT_FACE( face ), instance_index );
|
|
}
|
|
|
|
|
|
FT_DEFINE_SERVICE_MULTIMASTERSREC(
|
|
cff_service_multi_masters,
|
|
|
|
(FT_Get_MM_Func) NULL, /* get_mm */
|
|
(FT_Set_MM_Design_Func) NULL, /* set_mm_design */
|
|
(FT_Set_MM_Blend_Func) cff_set_mm_blend, /* set_mm_blend */
|
|
(FT_Get_MM_Blend_Func) cff_get_mm_blend, /* get_mm_blend */
|
|
(FT_Get_MM_Var_Func) cff_get_mm_var, /* get_mm_var */
|
|
(FT_Set_Var_Design_Func) cff_set_var_design, /* set_var_design */
|
|
(FT_Get_Var_Design_Func) cff_get_var_design, /* get_var_design */
|
|
(FT_Set_Instance_Func) cff_set_instance, /* set_instance */
|
|
(FT_Set_MM_WeightVector_Func)cff_set_mm_weightvector, /* set_mm_weightvector */
|
|
(FT_Get_MM_WeightVector_Func)cff_get_mm_weightvector, /* get_mm_weightvector */
|
|
|
|
(FT_Get_Var_Blend_Func) cff_get_var_blend, /* get_var_blend */
|
|
(FT_Done_Blend_Func) cff_done_blend /* done_blend */
|
|
)
|
|
|
|
|
|
/*
|
|
* METRICS VARIATIONS SERVICE
|
|
*
|
|
*/
|
|
|
|
static FT_Error
|
|
cff_hadvance_adjust( CFF_Face face,
|
|
FT_UInt gindex,
|
|
FT_Int *avalue )
|
|
{
|
|
FT_Service_MetricsVariations var = (FT_Service_MetricsVariations)face->var;
|
|
|
|
|
|
return var->hadvance_adjust( FT_FACE( face ), gindex, avalue );
|
|
}
|
|
|
|
|
|
static void
|
|
cff_metrics_adjust( CFF_Face face )
|
|
{
|
|
FT_Service_MetricsVariations var = (FT_Service_MetricsVariations)face->var;
|
|
|
|
|
|
var->metrics_adjust( FT_FACE( face ) );
|
|
}
|
|
|
|
|
|
FT_DEFINE_SERVICE_METRICSVARIATIONSREC(
|
|
cff_service_metrics_variations,
|
|
|
|
(FT_HAdvance_Adjust_Func)cff_hadvance_adjust, /* hadvance_adjust */
|
|
(FT_LSB_Adjust_Func) NULL, /* lsb_adjust */
|
|
(FT_RSB_Adjust_Func) NULL, /* rsb_adjust */
|
|
|
|
(FT_VAdvance_Adjust_Func)NULL, /* vadvance_adjust */
|
|
(FT_TSB_Adjust_Func) NULL, /* tsb_adjust */
|
|
(FT_BSB_Adjust_Func) NULL, /* bsb_adjust */
|
|
(FT_VOrg_Adjust_Func) NULL, /* vorg_adjust */
|
|
|
|
(FT_Metrics_Adjust_Func) cff_metrics_adjust /* metrics_adjust */
|
|
)
|
|
#endif
|
|
|
|
|
|
/*
|
|
* CFFLOAD SERVICE
|
|
*
|
|
*/
|
|
|
|
FT_DEFINE_SERVICE_CFFLOADREC(
|
|
cff_service_cff_load,
|
|
|
|
(FT_Get_Standard_Encoding_Func)cff_get_standard_encoding,
|
|
(FT_Load_Private_Dict_Func) cff_load_private_dict,
|
|
(FT_FD_Select_Get_Func) cff_fd_select_get,
|
|
(FT_Blend_Check_Vector_Func) cff_blend_check_vector,
|
|
(FT_Blend_Build_Vector_Func) cff_blend_build_vector
|
|
)
|
|
|
|
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
/**** ****/
|
|
/**** ****/
|
|
/**** D R I V E R I N T E R F A C E ****/
|
|
/**** ****/
|
|
/**** ****/
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
|
|
#if !defined FT_CONFIG_OPTION_NO_GLYPH_NAMES && \
|
|
defined TT_CONFIG_OPTION_GX_VAR_SUPPORT
|
|
FT_DEFINE_SERVICEDESCREC10(
|
|
cff_services,
|
|
|
|
FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_CFF,
|
|
FT_SERVICE_ID_MULTI_MASTERS, &cff_service_multi_masters,
|
|
FT_SERVICE_ID_METRICS_VARIATIONS, &cff_service_metrics_variations,
|
|
FT_SERVICE_ID_POSTSCRIPT_INFO, &cff_service_ps_info,
|
|
FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &cff_service_ps_name,
|
|
FT_SERVICE_ID_GLYPH_DICT, &cff_service_glyph_dict,
|
|
FT_SERVICE_ID_TT_CMAP, &cff_service_get_cmap_info,
|
|
FT_SERVICE_ID_CID, &cff_service_cid_info,
|
|
FT_SERVICE_ID_PROPERTIES, &cff_service_properties,
|
|
FT_SERVICE_ID_CFF_LOAD, &cff_service_cff_load
|
|
)
|
|
#elif !defined FT_CONFIG_OPTION_NO_GLYPH_NAMES
|
|
FT_DEFINE_SERVICEDESCREC8(
|
|
cff_services,
|
|
|
|
FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_CFF,
|
|
FT_SERVICE_ID_POSTSCRIPT_INFO, &cff_service_ps_info,
|
|
FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &cff_service_ps_name,
|
|
FT_SERVICE_ID_GLYPH_DICT, &cff_service_glyph_dict,
|
|
FT_SERVICE_ID_TT_CMAP, &cff_service_get_cmap_info,
|
|
FT_SERVICE_ID_CID, &cff_service_cid_info,
|
|
FT_SERVICE_ID_PROPERTIES, &cff_service_properties,
|
|
FT_SERVICE_ID_CFF_LOAD, &cff_service_cff_load
|
|
)
|
|
#elif defined TT_CONFIG_OPTION_GX_VAR_SUPPORT
|
|
FT_DEFINE_SERVICEDESCREC9(
|
|
cff_services,
|
|
|
|
FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_CFF,
|
|
FT_SERVICE_ID_MULTI_MASTERS, &cff_service_multi_masters,
|
|
FT_SERVICE_ID_METRICS_VARIATIONS, &cff_service_metrics_var,
|
|
FT_SERVICE_ID_POSTSCRIPT_INFO, &cff_service_ps_info,
|
|
FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &cff_service_ps_name,
|
|
FT_SERVICE_ID_TT_CMAP, &cff_service_get_cmap_info,
|
|
FT_SERVICE_ID_CID, &cff_service_cid_info,
|
|
FT_SERVICE_ID_PROPERTIES, &cff_service_properties,
|
|
FT_SERVICE_ID_CFF_LOAD, &cff_service_cff_load
|
|
)
|
|
#else
|
|
FT_DEFINE_SERVICEDESCREC7(
|
|
cff_services,
|
|
|
|
FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_CFF,
|
|
FT_SERVICE_ID_POSTSCRIPT_INFO, &cff_service_ps_info,
|
|
FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &cff_service_ps_name,
|
|
FT_SERVICE_ID_TT_CMAP, &cff_service_get_cmap_info,
|
|
FT_SERVICE_ID_CID, &cff_service_cid_info,
|
|
FT_SERVICE_ID_PROPERTIES, &cff_service_properties,
|
|
FT_SERVICE_ID_CFF_LOAD, &cff_service_cff_load
|
|
)
|
|
#endif
|
|
|
|
|
|
FT_CALLBACK_DEF( FT_Module_Interface )
|
|
cff_get_interface( FT_Module driver, /* CFF_Driver */
|
|
const char* module_interface )
|
|
{
|
|
FT_Library library;
|
|
FT_Module sfnt;
|
|
FT_Module_Interface result;
|
|
|
|
|
|
result = ft_service_list_lookup( cff_services, module_interface );
|
|
if ( result )
|
|
return result;
|
|
|
|
/* `driver' is not yet evaluated */
|
|
if ( !driver )
|
|
return NULL;
|
|
library = driver->library;
|
|
if ( !library )
|
|
return NULL;
|
|
|
|
/* we pass our request to the `sfnt' module */
|
|
sfnt = FT_Get_Module( library, "sfnt" );
|
|
|
|
return sfnt ? sfnt->clazz->get_interface( sfnt, module_interface ) : 0;
|
|
}
|
|
|
|
|
|
/* The FT_DriverInterface structure is defined in ftdriver.h. */
|
|
|
|
#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
|
|
#define CFF_SIZE_SELECT cff_size_select
|
|
#else
|
|
#define CFF_SIZE_SELECT 0
|
|
#endif
|
|
|
|
FT_DEFINE_DRIVER(
|
|
cff_driver_class,
|
|
|
|
FT_MODULE_FONT_DRIVER |
|
|
FT_MODULE_DRIVER_SCALABLE |
|
|
FT_MODULE_DRIVER_HAS_HINTER |
|
|
FT_MODULE_DRIVER_HINTS_LIGHTLY,
|
|
|
|
sizeof ( PS_DriverRec ),
|
|
"cff",
|
|
0x10000L,
|
|
0x20000L,
|
|
|
|
NULL, /* module-specific interface */
|
|
|
|
cff_driver_init, /* FT_Module_Constructor module_init */
|
|
cff_driver_done, /* FT_Module_Destructor module_done */
|
|
cff_get_interface, /* FT_Module_Requester get_interface */
|
|
|
|
sizeof ( TT_FaceRec ),
|
|
sizeof ( CFF_SizeRec ),
|
|
sizeof ( CFF_GlyphSlotRec ),
|
|
|
|
cff_face_init, /* FT_Face_InitFunc init_face */
|
|
cff_face_done, /* FT_Face_DoneFunc done_face */
|
|
cff_size_init, /* FT_Size_InitFunc init_size */
|
|
cff_size_done, /* FT_Size_DoneFunc done_size */
|
|
cff_slot_init, /* FT_Slot_InitFunc init_slot */
|
|
cff_slot_done, /* FT_Slot_DoneFunc done_slot */
|
|
|
|
cff_glyph_load, /* FT_Slot_LoadFunc load_glyph */
|
|
|
|
cff_get_kerning, /* FT_Face_GetKerningFunc get_kerning */
|
|
NULL, /* FT_Face_AttachFunc attach_file */
|
|
cff_get_advances, /* FT_Face_GetAdvancesFunc get_advances */
|
|
|
|
cff_size_request, /* FT_Size_RequestFunc request_size */
|
|
CFF_SIZE_SELECT /* FT_Size_SelectFunc select_size */
|
|
)
|
|
|
|
|
|
/* END */
|