Added a new function: AddNewEvent, which only adds an event to the list if it doesn't already exist. Kept the old one as it might me useful to be able to add an event more than once.
/***************************************************************************/
/* */
/* cffobjs.c */
/* */
/* OpenType objects manager (body). */
/* */
/* Copyright 1996-2011 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
/* modified, and distributed under the terms of the FreeType project */
/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
/* this file you indicate that you have read the license and */
/* understand and accept it fully. */
/* */
/***************************************************************************/
#include <ft2build.h>
#include FT_INTERNAL_DEBUG_H
#include FT_INTERNAL_CALC_H
#include FT_INTERNAL_STREAM_H
#include FT_ERRORS_H
#include FT_TRUETYPE_IDS_H
#include FT_TRUETYPE_TAGS_H
#include FT_INTERNAL_SFNT_H
#include "cffobjs.h"
#include "cffload.h"
#include "cffcmap.h"
#include "cfferrs.h"
#include "cffpic.h"
/*************************************************************************/
/* */
/* The macro FT_COMPONENT is used in trace mode. It is an implicit */
/* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
/* messages during execution. */
/* */
#undef FT_COMPONENT
#define FT_COMPONENT trace_cffobjs
/*************************************************************************/
/* */
/* SIZE FUNCTIONS */
/* */
/* Note that we store the global hints in the size's `internal' root */
/* field. */
/* */
/*************************************************************************/
static PSH_Globals_Funcs
cff_size_get_globals_funcs( CFF_Size size )
{
CFF_Face face = (CFF_Face)size->root.face;
CFF_Font font = (CFF_Font)face->extra.data;
PSHinter_Service pshinter = font->pshinter;
FT_Module module;
module = FT_Get_Module( size->root.face->driver->root.library,
"pshinter" );
return ( module && pshinter && pshinter->get_globals_funcs )
? pshinter->get_globals_funcs( module )
: 0;
}
FT_LOCAL_DEF( void )
cff_size_done( FT_Size cffsize ) /* CFF_Size */
{
CFF_Size size = (CFF_Size)cffsize;
CFF_Face face = (CFF_Face)size->root.face;
CFF_Font font = (CFF_Font)face->extra.data;
CFF_Internal internal = (CFF_Internal)cffsize->internal;
if ( internal )
{
PSH_Globals_Funcs funcs;
funcs = cff_size_get_globals_funcs( size );
if ( funcs )
{
FT_UInt i;
funcs->destroy( internal->topfont );
for ( i = font->num_subfonts; i > 0; i-- )
funcs->destroy( internal->subfonts[i - 1] );
}
/* `internal' is freed by destroy_size (in ftobjs.c) */
}
}
/* CFF and Type 1 private dictionaries have slightly different */
/* structures; we need to synthesize a Type 1 dictionary on the fly */
static void
cff_make_private_dict( CFF_SubFont subfont,
PS_Private priv )
{
CFF_Private cpriv = &subfont->private_dict;
FT_UInt n, count;
FT_MEM_ZERO( priv, sizeof ( *priv ) );
count = priv->num_blue_values = cpriv->num_blue_values;
for ( n = 0; n < count; n++ )
priv->blue_values[n] = (FT_Short)cpriv->blue_values[n];
count = priv->num_other_blues = cpriv->num_other_blues;
for ( n = 0; n < count; n++ )
priv->other_blues[n] = (FT_Short)cpriv->other_blues[n];
count = priv->num_family_blues = cpriv->num_family_blues;
for ( n = 0; n < count; n++ )
priv->family_blues[n] = (FT_Short)cpriv->family_blues[n];
count = priv->num_family_other_blues = cpriv->num_family_other_blues;
for ( n = 0; n < count; n++ )
priv->family_other_blues[n] = (FT_Short)cpriv->family_other_blues[n];
priv->blue_scale = cpriv->blue_scale;
priv->blue_shift = (FT_Int)cpriv->blue_shift;
priv->blue_fuzz = (FT_Int)cpriv->blue_fuzz;
priv->standard_width[0] = (FT_UShort)cpriv->standard_width;
priv->standard_height[0] = (FT_UShort)cpriv->standard_height;
count = priv->num_snap_widths = cpriv->num_snap_widths;
for ( n = 0; n < count; n++ )
priv->snap_widths[n] = (FT_Short)cpriv->snap_widths[n];
count = priv->num_snap_heights = cpriv->num_snap_heights;
for ( n = 0; n < count; n++ )
priv->snap_heights[n] = (FT_Short)cpriv->snap_heights[n];
priv->force_bold = cpriv->force_bold;
priv->language_group = cpriv->language_group;
priv->lenIV = cpriv->lenIV;
}
FT_LOCAL_DEF( FT_Error )
cff_size_init( FT_Size cffsize ) /* CFF_Size */
{
CFF_Size size = (CFF_Size)cffsize;
FT_Error error = CFF_Err_Ok;
PSH_Globals_Funcs funcs = cff_size_get_globals_funcs( size );
if ( funcs )
{
CFF_Face face = (CFF_Face)cffsize->face;
CFF_Font font = (CFF_Font)face->extra.data;
CFF_Internal internal;
PS_PrivateRec priv;
FT_Memory memory = cffsize->face->memory;
FT_UInt i;
if ( FT_NEW( internal ) )
goto Exit;
cff_make_private_dict( &font->top_font, &priv );
error = funcs->create( cffsize->face->memory, &priv,
&internal->topfont );
if ( error )
goto Exit;
for ( i = font->num_subfonts; i > 0; i-- )
{
CFF_SubFont sub = font->subfonts[i - 1];
cff_make_private_dict( sub, &priv );
error = funcs->create( cffsize->face->memory, &priv,
&internal->subfonts[i - 1] );
if ( error )
goto Exit;
}
cffsize->internal = (FT_Size_Internal)(void*)internal;
}
size->strike_index = 0xFFFFFFFFUL;
Exit:
return error;
}
#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
FT_LOCAL_DEF( FT_Error )
cff_size_select( FT_Size size,
FT_ULong strike_index )
{
CFF_Size cffsize = (CFF_Size)size;
PSH_Globals_Funcs funcs;
cffsize->strike_index = strike_index;
FT_Select_Metrics( size->face, strike_index );
funcs = cff_size_get_globals_funcs( cffsize );
if ( funcs )
{
CFF_Face face = (CFF_Face)size->face;
CFF_Font font = (CFF_Font)face->extra.data;
CFF_Internal internal = (CFF_Internal)size->internal;
FT_ULong top_upm = font->top_font.font_dict.units_per_em;
FT_UInt i;
funcs->set_scale( internal->topfont,
size->metrics.x_scale, size->metrics.y_scale,
0, 0 );
for ( i = font->num_subfonts; i > 0; i-- )
{
CFF_SubFont sub = font->subfonts[i - 1];
FT_ULong sub_upm = sub->font_dict.units_per_em;
FT_Pos x_scale, y_scale;
if ( top_upm != sub_upm )
{
x_scale = FT_MulDiv( size->metrics.x_scale, top_upm, sub_upm );
y_scale = FT_MulDiv( size->metrics.y_scale, top_upm, sub_upm );
}
else
{
x_scale = size->metrics.x_scale;
y_scale = size->metrics.y_scale;
}
funcs->set_scale( internal->subfonts[i - 1],
x_scale, y_scale, 0, 0 );
}
}
return CFF_Err_Ok;
}
#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
FT_LOCAL_DEF( FT_Error )
cff_size_request( FT_Size size,
FT_Size_Request req )
{
CFF_Size cffsize = (CFF_Size)size;
PSH_Globals_Funcs funcs;
#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
if ( FT_HAS_FIXED_SIZES( size->face ) )
{
CFF_Face cffface = (CFF_Face)size->face;
SFNT_Service sfnt = (SFNT_Service)cffface->sfnt;
FT_ULong strike_index;
if ( sfnt->set_sbit_strike( cffface, req, &strike_index ) )
cffsize->strike_index = 0xFFFFFFFFUL;
else
return cff_size_select( size, strike_index );
}
#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
FT_Request_Metrics( size->face, req );
funcs = cff_size_get_globals_funcs( cffsize );
if ( funcs )
{
CFF_Face cffface = (CFF_Face)size->face;
CFF_Font font = (CFF_Font)cffface->extra.data;
CFF_Internal internal = (CFF_Internal)size->internal;
FT_ULong top_upm = font->top_font.font_dict.units_per_em;
FT_UInt i;
funcs->set_scale( internal->topfont,
size->metrics.x_scale, size->metrics.y_scale,
0, 0 );
for ( i = font->num_subfonts; i > 0; i-- )
{
CFF_SubFont sub = font->subfonts[i - 1];
FT_ULong sub_upm = sub->font_dict.units_per_em;
FT_Pos x_scale, y_scale;
if ( top_upm != sub_upm )
{
x_scale = FT_MulDiv( size->metrics.x_scale, top_upm, sub_upm );
y_scale = FT_MulDiv( size->metrics.y_scale, top_upm, sub_upm );
}
else
{
x_scale = size->metrics.x_scale;
y_scale = size->metrics.y_scale;
}
funcs->set_scale( internal->subfonts[i - 1],
x_scale, y_scale, 0, 0 );
}
}
return CFF_Err_Ok;
}
/*************************************************************************/
/* */
/* SLOT FUNCTIONS */
/* */
/*************************************************************************/
FT_LOCAL_DEF( void )
cff_slot_done( FT_GlyphSlot slot )
{
slot->internal->glyph_hints = 0;
}
FT_LOCAL_DEF( FT_Error )
cff_slot_init( FT_GlyphSlot slot )
{
CFF_Face face = (CFF_Face)slot->face;
CFF_Font font = (CFF_Font)face->extra.data;
PSHinter_Service pshinter = font->pshinter;
if ( pshinter )
{
FT_Module module;
module = FT_Get_Module( slot->face->driver->root.library,
"pshinter" );
if ( module )
{
T2_Hints_Funcs funcs;
funcs = pshinter->get_t2_funcs( module );
slot->internal->glyph_hints = (void*)funcs;
}
}
return CFF_Err_Ok;
}
/*************************************************************************/
/* */
/* FACE FUNCTIONS */
/* */
/*************************************************************************/
static FT_String*
cff_strcpy( FT_Memory memory,
const FT_String* source )
{
FT_Error error;
FT_String* result;
(void)FT_STRDUP( result, source );
FT_UNUSED( error );
return result;
}
/* Strip all subset prefixes of the form `ABCDEF+'. Usually, there */
/* is only one, but font names like `APCOOG+JFABTD+FuturaBQ-Bold' */
/* have been seen in the wild. */
static void
remove_subset_prefix( FT_String* name )
{
FT_Int32 idx = 0;
FT_Int32 length = strlen( name ) + 1;
FT_Bool continue_search = 1;
while ( continue_search )
{
if ( length >= 7 && name[6] == '+' )
{
for ( idx = 0; idx < 6; idx++ )
{
/* ASCII uppercase letters */
if ( !( 'A' <= name[idx] && name[idx] <= 'Z' ) )
continue_search = 0;
}
if ( continue_search )
{
for ( idx = 7; idx < length; idx++ )
name[idx - 7] = name[idx];
length -= 7;
}
}
else
continue_search = 0;
}
}
/* Remove the style part from the family name (if present). */
static void
remove_style( FT_String* family_name,
const FT_String* style_name )
{
FT_Int32 family_name_length, style_name_length;
family_name_length = strlen( family_name );
style_name_length = strlen( style_name );
if ( family_name_length > style_name_length )
{
FT_Int idx;
for ( idx = 1; idx <= style_name_length; ++idx )
{
if ( family_name[family_name_length - idx] !=
style_name[style_name_length - idx] )
break;
}
if ( idx > style_name_length )
{
/* family_name ends with style_name; remove it */
idx = family_name_length - style_name_length - 1;
/* also remove special characters */
/* between real family name and style */
while ( idx > 0 &&
( family_name[idx] == '-' ||
family_name[idx] == ' ' ||
family_name[idx] == '_' ||
family_name[idx] == '+' ) )
--idx;
if ( idx > 0 )
family_name[idx + 1] = '\0';
}
}
}
FT_LOCAL_DEF( FT_Error )
cff_face_init( FT_Stream stream,
FT_Face cffface, /* CFF_Face */
FT_Int face_index,
FT_Int num_params,
FT_Parameter* params )
{
CFF_Face face = (CFF_Face)cffface;
FT_Error error;
SFNT_Service sfnt;
FT_Service_PsCMaps psnames;
PSHinter_Service pshinter;
FT_Bool pure_cff = 1;
FT_Bool sfnt_format = 0;
FT_Library library = cffface->driver->root.library;
sfnt = (SFNT_Service)FT_Get_Module_Interface(
library, "sfnt" );
if ( !sfnt )
goto Bad_Format;
FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS );
pshinter = (PSHinter_Service)FT_Get_Module_Interface(
library, "pshinter" );
/* create input stream from resource */
if ( FT_STREAM_SEEK( 0 ) )
goto Exit;
/* check whether we have a valid OpenType file */
error = sfnt->init_face( stream, face, face_index, num_params, params );
if ( !error )
{
if ( face->format_tag != TTAG_OTTO ) /* `OTTO'; OpenType/CFF font */
{
FT_TRACE2(( "[not a valid OpenType/CFF font]\n" ));
goto Bad_Format;
}
/* if we are performing a simple font format check, exit immediately */
if ( face_index < 0 )
return CFF_Err_Ok;
/* UNDOCUMENTED! A CFF in an SFNT can have only a single font. */
if ( face_index > 0 )
{
FT_ERROR(( "cff_face_init: invalid face index\n" ));
error = CFF_Err_Invalid_Argument;
goto Exit;
}
sfnt_format = 1;
/* now, the font can be either an OpenType/CFF font, or an SVG CEF */
/* font; in the latter case it doesn't have a `head' table */
error = face->goto_table( face, TTAG_head, stream, 0 );
if ( !error )
{
pure_cff = 0;
/* load font directory */
error = sfnt->load_face( stream, face, 0, num_params, params );
if ( error )
goto Exit;
}
else
{
/* load the `cmap' table explicitly */
error = sfnt->load_cmap( face, stream );
if ( error )
goto Exit;
/* XXX: we don't load the GPOS table, as OpenType Layout */
/* support will be added later to a layout library on top of */
/* FreeType 2 */
}
/* now load the CFF part of the file */
error = face->goto_table( face, TTAG_CFF, stream, 0 );
if ( error )
goto Exit;
}
else
{
/* rewind to start of file; we are going to load a pure-CFF font */
if ( FT_STREAM_SEEK( 0 ) )
goto Exit;
error = CFF_Err_Ok;
}
/* now load and parse the CFF table in the file */
{
CFF_Font cff;
CFF_FontRecDict dict;
FT_Memory memory = cffface->memory;
FT_Int32 flags;
FT_UInt i;
if ( FT_NEW( cff ) )
goto Exit;
face->extra.data = cff;
error = cff_font_load( library, stream, face_index, cff, pure_cff );
if ( error )
goto Exit;
cff->pshinter = pshinter;
cff->psnames = psnames;
cffface->face_index = face_index;
/* Complement the root flags with some interesting information. */
/* Note that this is only necessary for pure CFF and CEF fonts; */
/* SFNT based fonts use the `name' table instead. */
cffface->num_glyphs = cff->num_glyphs;
dict = &cff->top_font.font_dict;
/* we need the `PSNames' module for CFF and CEF formats */
/* which aren't CID-keyed */
if ( dict->cid_registry == 0xFFFFU && !psnames )
{
FT_ERROR(( "cff_face_init:"
" cannot open CFF & CEF fonts\n"
" "
" without the `PSNames' module\n" ));
goto Bad_Format;
}
if ( !dict->units_per_em )
dict->units_per_em = pure_cff ? 1000 : face->root.units_per_EM;
/* Normalize the font matrix so that `matrix->xx' is 1; the */
/* scaling is done with `units_per_em' then (at this point, */
/* it already contains the scaling factor, but without */
/* normalization of the matrix). */
/* */
/* Note that the offsets must be expressed in integer font */
/* units. */
{
FT_Matrix* matrix = &dict->font_matrix;
FT_Vector* offset = &dict->font_offset;
FT_ULong* upm = &dict->units_per_em;
FT_Fixed temp = FT_ABS( matrix->yy );
if ( temp != 0x10000L )
{
*upm = FT_DivFix( *upm, temp );
matrix->xx = FT_DivFix( matrix->xx, temp );
matrix->yx = FT_DivFix( matrix->yx, temp );
matrix->xy = FT_DivFix( matrix->xy, temp );
matrix->yy = FT_DivFix( matrix->yy, temp );
offset->x = FT_DivFix( offset->x, temp );
offset->y = FT_DivFix( offset->y, temp );
}
offset->x >>= 16;
offset->y >>= 16;
}
for ( i = cff->num_subfonts; i > 0; i-- )
{
CFF_FontRecDict sub = &cff->subfonts[i - 1]->font_dict;
CFF_FontRecDict top = &cff->top_font.font_dict;
FT_Matrix* matrix;
FT_Vector* offset;
FT_ULong* upm;
FT_Fixed temp;
if ( sub->units_per_em )
{
FT_Long scaling;
if ( top->units_per_em > 1 && sub->units_per_em > 1 )
scaling = FT_MIN( top->units_per_em, sub->units_per_em );
else
scaling = 1;
FT_Matrix_Multiply_Scaled( &top->font_matrix,
&sub->font_matrix,
scaling );
FT_Vector_Transform_Scaled( &sub->font_offset,
&top->font_matrix,
scaling );
sub->units_per_em = FT_MulDiv( sub->units_per_em,
top->units_per_em,
scaling );
}
else
{
sub->font_matrix = top->font_matrix;
sub->font_offset = top->font_offset;
sub->units_per_em = top->units_per_em;
}
matrix = &sub->font_matrix;
offset = &sub->font_offset;
upm = &sub->units_per_em;
temp = FT_ABS( matrix->yy );
if ( temp != 0x10000L )
{
*upm = FT_DivFix( *upm, temp );
/* if *upm is larger than 100*1000 we divide by 1000 -- */
/* this can happen if e.g. there is no top-font FontMatrix */
/* and the subfont FontMatrix already contains the complete */
/* scaling for the subfont (see section 5.11 of the PLRM) */
/* 100 is a heuristic value */
if ( *upm > 100L * 1000L )
*upm = ( *upm + 500 ) / 1000;
matrix->xx = FT_DivFix( matrix->xx, temp );
matrix->yx = FT_DivFix( matrix->yx, temp );
matrix->xy = FT_DivFix( matrix->xy, temp );
matrix->yy = FT_DivFix( matrix->yy, temp );
offset->x = FT_DivFix( offset->x, temp );
offset->y = FT_DivFix( offset->y, temp );
}
offset->x >>= 16;
offset->y >>= 16;
}
if ( pure_cff )
{
char* style_name = NULL;
/* set up num_faces */
cffface->num_faces = cff->num_faces;
/* compute number of glyphs */
if ( dict->cid_registry != 0xFFFFU )
cffface->num_glyphs = cff->charset.max_cid + 1;
else
cffface->num_glyphs = cff->charstrings_index.count;
/* set global bbox, as well as EM size */
cffface->bbox.xMin = dict->font_bbox.xMin >> 16;
cffface->bbox.yMin = dict->font_bbox.yMin >> 16;
/* no `U' suffix here to 0xFFFF! */
cffface->bbox.xMax = ( dict->font_bbox.xMax + 0xFFFF ) >> 16;
cffface->bbox.yMax = ( dict->font_bbox.yMax + 0xFFFF ) >> 16;
cffface->units_per_EM = (FT_UShort)( dict->units_per_em );
cffface->ascender = (FT_Short)( cffface->bbox.yMax );
cffface->descender = (FT_Short)( cffface->bbox.yMin );
cffface->height = (FT_Short)( ( cffface->units_per_EM * 12 ) / 10 );
if ( cffface->height < cffface->ascender - cffface->descender )
cffface->height = (FT_Short)( cffface->ascender - cffface->descender );
cffface->underline_position =
(FT_Short)( dict->underline_position >> 16 );
cffface->underline_thickness =
(FT_Short)( dict->underline_thickness >> 16 );
/* retrieve font family & style name */
cffface->family_name = cff_index_get_name( cff, face_index );
if ( cffface->family_name )
{
char* full = cff_index_get_sid_string( cff,
dict->full_name );
char* fullp = full;
char* family = cffface->family_name;
char* family_name = NULL;
remove_subset_prefix( cffface->family_name );
if ( dict->family_name )
{
family_name = cff_index_get_sid_string( cff,
dict->family_name );
if ( family_name )
family = family_name;
}
/* We try to extract the style name from the full name. */
/* We need to ignore spaces and dashes during the search. */
if ( full && family )
{
while ( *fullp )
{
/* skip common characters at the start of both strings */
if ( *fullp == *family )
{
family++;
fullp++;
continue;
}
/* ignore spaces and dashes in full name during comparison */
if ( *fullp == ' ' || *fullp == '-' )
{
fullp++;
continue;
}
/* ignore spaces and dashes in family name during comparison */
if ( *family == ' ' || *family == '-' )
{
family++;
continue;
}
if ( !*family && *fullp )
{
/* The full name begins with the same characters as the */
/* family name, with spaces and dashes removed. In this */
/* case, the remaining string in `fullp' will be used as */
/* the style name. */
style_name = cff_strcpy( memory, fullp );
/* remove the style part from the family name (if present) */
remove_style( cffface->family_name, style_name );
}
break;
}
}
}
else
{
char *cid_font_name =
cff_index_get_sid_string( cff,
dict->cid_font_name );
/* do we have a `/FontName' for a CID-keyed font? */
if ( cid_font_name )
cffface->family_name = cff_strcpy( memory, cid_font_name );
}
if ( style_name )
cffface->style_name = style_name;
else
/* assume "Regular" style if we don't know better */
cffface->style_name = cff_strcpy( memory, (char *)"Regular" );
/*******************************************************************/
/* */
/* Compute face flags. */
/* */
flags = (FT_UInt32)( FT_FACE_FLAG_SCALABLE | /* scalable outlines */
FT_FACE_FLAG_HORIZONTAL | /* horizontal data */
FT_FACE_FLAG_HINTER ); /* has native hinter */
if ( sfnt_format )
flags |= (FT_UInt32)FT_FACE_FLAG_SFNT;
/* fixed width font? */
if ( dict->is_fixed_pitch )
flags |= (FT_UInt32)FT_FACE_FLAG_FIXED_WIDTH;
/* XXX: WE DO NOT SUPPORT KERNING METRICS IN THE GPOS TABLE FOR NOW */
#if 0
/* kerning available? */
if ( face->kern_pairs )
flags |= (FT_UInt32)FT_FACE_FLAG_KERNING;
#endif
cffface->face_flags = flags;
/*******************************************************************/
/* */
/* Compute style flags. */
/* */
flags = 0;
if ( dict->italic_angle )
flags |= FT_STYLE_FLAG_ITALIC;
{
char *weight = cff_index_get_sid_string( cff,
dict->weight );
if ( weight )
if ( !ft_strcmp( weight, "Bold" ) ||
!ft_strcmp( weight, "Black" ) )
flags |= FT_STYLE_FLAG_BOLD;
}
/* double check */
if ( !(flags & FT_STYLE_FLAG_BOLD) && cffface->style_name )
if ( !ft_strncmp( cffface->style_name, "Bold", 4 ) ||
!ft_strncmp( cffface->style_name, "Black", 5 ) )
flags |= FT_STYLE_FLAG_BOLD;
cffface->style_flags = flags;
}
#ifndef FT_CONFIG_OPTION_NO_GLYPH_NAMES
/* CID-keyed CFF fonts don't have glyph names -- the SFNT loader */
/* has unset this flag because of the 3.0 `post' table. */
if ( dict->cid_registry == 0xFFFFU )
cffface->face_flags |= FT_FACE_FLAG_GLYPH_NAMES;
#endif
if ( dict->cid_registry != 0xFFFFU && pure_cff )
cffface->face_flags |= FT_FACE_FLAG_CID_KEYED;
/*******************************************************************/
/* */
/* Compute char maps. */
/* */
/* Try to synthesize a Unicode charmap if there is none available */
/* already. If an OpenType font contains a Unicode "cmap", we */
/* will use it, whatever be in the CFF part of the file. */
{
FT_CharMapRec cmaprec;
FT_CharMap cmap;
FT_UInt nn;
CFF_Encoding encoding = &cff->encoding;
for ( nn = 0; nn < (FT_UInt)cffface->num_charmaps; nn++ )
{
cmap = cffface->charmaps[nn];
/* Windows Unicode? */
if ( cmap->platform_id == TT_PLATFORM_MICROSOFT &&
cmap->encoding_id == TT_MS_ID_UNICODE_CS )
goto Skip_Unicode;
/* Apple Unicode platform id? */
if ( cmap->platform_id == TT_PLATFORM_APPLE_UNICODE )
goto Skip_Unicode; /* Apple Unicode */
}
/* since CID-keyed fonts don't contain glyph names, we can't */
/* construct a cmap */
if ( pure_cff && cff->top_font.font_dict.cid_registry != 0xFFFFU )
goto Exit;
#ifdef FT_MAX_CHARMAP_CACHEABLE
if ( nn + 1 > FT_MAX_CHARMAP_CACHEABLE )
{
FT_ERROR(( "cff_face_init: no Unicode cmap is found, "
"and too many subtables (%d) to add synthesized cmap\n",
nn ));
goto Exit;
}
#endif
/* we didn't find a Unicode charmap -- synthesize one */
cmaprec.face = cffface;
cmaprec.platform_id = TT_PLATFORM_MICROSOFT;
cmaprec.encoding_id = TT_MS_ID_UNICODE_CS;
cmaprec.encoding = FT_ENCODING_UNICODE;
nn = (FT_UInt)cffface->num_charmaps;
error = FT_CMap_New( &FT_CFF_CMAP_UNICODE_CLASS_REC_GET, NULL,
&cmaprec, NULL );
if ( error && FT_Err_No_Unicode_Glyph_Name != error )
goto Exit;
error = FT_Err_Ok;
/* if no Unicode charmap was previously selected, select this one */
if ( cffface->charmap == NULL && nn != (FT_UInt)cffface->num_charmaps )
cffface->charmap = cffface->charmaps[nn];
Skip_Unicode:
#ifdef FT_MAX_CHARMAP_CACHEABLE
if ( nn > FT_MAX_CHARMAP_CACHEABLE )
{
FT_ERROR(( "cff_face_init: Unicode cmap is found, "
"but too many preceding subtables (%d) to access\n",
nn - 1 ));
goto Exit;
}
#endif
if ( encoding->count > 0 )
{
FT_CMap_Class clazz;
cmaprec.face = cffface;
cmaprec.platform_id = TT_PLATFORM_ADOBE; /* Adobe platform id */
if ( encoding->offset == 0 )
{
cmaprec.encoding_id = TT_ADOBE_ID_STANDARD;
cmaprec.encoding = FT_ENCODING_ADOBE_STANDARD;
clazz = &FT_CFF_CMAP_ENCODING_CLASS_REC_GET;
}
else if ( encoding->offset == 1 )
{
cmaprec.encoding_id = TT_ADOBE_ID_EXPERT;
cmaprec.encoding = FT_ENCODING_ADOBE_EXPERT;
clazz = &FT_CFF_CMAP_ENCODING_CLASS_REC_GET;
}
else
{
cmaprec.encoding_id = TT_ADOBE_ID_CUSTOM;
cmaprec.encoding = FT_ENCODING_ADOBE_CUSTOM;
clazz = &FT_CFF_CMAP_ENCODING_CLASS_REC_GET;
}
error = FT_CMap_New( clazz, NULL, &cmaprec, NULL );
}
}
}
Exit:
return error;
Bad_Format:
error = CFF_Err_Unknown_File_Format;
goto Exit;
}
FT_LOCAL_DEF( void )
cff_face_done( FT_Face cffface ) /* CFF_Face */
{
CFF_Face face = (CFF_Face)cffface;
FT_Memory memory;
SFNT_Service sfnt;
if ( !face )
return;
memory = cffface->memory;
sfnt = (SFNT_Service)face->sfnt;
if ( sfnt )
sfnt->done_face( face );
{
CFF_Font cff = (CFF_Font)face->extra.data;
if ( cff )
{
cff_font_done( cff );
FT_FREE( face->extra.data );
}
}
}
FT_LOCAL_DEF( FT_Error )
cff_driver_init( FT_Module module )
{
FT_UNUSED( module );
return CFF_Err_Ok;
}
FT_LOCAL_DEF( void )
cff_driver_done( FT_Module module )
{
FT_UNUSED( module );
}
/* END */