0,0 → 1,1077 |
/***************************************************************************/ |
/* */ |
/* cffobjs.c */ |
/* */ |
/* OpenType objects manager (body). */ |
/* */ |
/* Copyright 1996-2013 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 FT_CFF_DRIVER_H |
|
#include "cffobjs.h" |
#include "cffload.h" |
#include "cffcmap.h" |
#include "cffpic.h" |
|
#include "cfferrs.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 = FT_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 = NULL; |
|
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 FT_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 FT_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 FT_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 = (FT_Int32)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 = (FT_Int32)strlen( family_name ); |
style_name_length = (FT_Int32)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 ) |
{ |
FT_ERROR(( "cff_face_init: cannot access `sfnt' module\n" )); |
error = FT_THROW( Missing_Module ); |
goto Exit; |
} |
|
FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS ); |
|
pshinter = (PSHinter_Service)FT_Get_Module_Interface( |
library, "pshinter" ); |
|
FT_TRACE2(( "CFF driver\n" )); |
|
/* 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 an OpenType/CFF font\n" )); |
error = FT_THROW( Unknown_File_Format ); |
goto Exit; |
} |
|
/* if we are performing a simple font format check, exit immediately */ |
if ( face_index < 0 ) |
return FT_Err_Ok; |
|
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, face_index, |
num_params, params ); |
if ( error ) |
goto Exit; |
} |
else |
{ |
/* load the `cmap' table explicitly */ |
error = sfnt->load_cmap( face, stream ); |
if ( error ) |
goto Exit; |
} |
|
/* 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 = FT_Err_Ok; |
} |
|
/* now load and parse the CFF table in the file */ |
{ |
CFF_Font cff = NULL; |
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" )); |
error = FT_THROW( Missing_Module ); |
goto Exit; |
} |
|
#ifdef FT_DEBUG_LEVEL_TRACE |
{ |
FT_UInt idx; |
FT_String* s; |
|
|
FT_TRACE4(( "SIDs\n" )); |
|
/* dump string index, including default strings for convenience */ |
for ( idx = 0; idx < cff->num_strings + 390; idx++ ) |
{ |
s = cff_index_get_sid_string( cff, idx ); |
if ( s ) |
FT_TRACE4((" %5d %s\n", idx, s )); |
} |
} |
#endif /* FT_DEBUG_LEVEL_TRACE */ |
|
if ( !dict->has_font_matrix ) |
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->has_font_matrix ) |
{ |
FT_Long scaling; |
|
|
/* if we have a top-level matrix, */ |
/* concatenate the subfont matrix */ |
|
if ( top->has_font_matrix ) |
{ |
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 ); |
|
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_FACE_FLAG_SCALABLE | /* scalable outlines */ |
FT_FACE_FLAG_HORIZONTAL | /* horizontal data */ |
FT_FACE_FLAG_HINTER; /* has native hinter */ |
|
if ( sfnt_format ) |
flags |= FT_FACE_FLAG_SFNT; |
|
/* fixed width font? */ |
if ( dict->is_fixed_pitch ) |
flags |= 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_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( &CFF_CMAP_UNICODE_CLASS_REC_GET, NULL, |
&cmaprec, NULL ); |
if ( error && |
FT_ERR_NEQ( error, No_Unicode_Glyph_Name ) ) |
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 = &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 = &CFF_CMAP_ENCODING_CLASS_REC_GET; |
} |
else |
{ |
cmaprec.encoding_id = TT_ADOBE_ID_CUSTOM; |
cmaprec.encoding = FT_ENCODING_ADOBE_CUSTOM; |
clazz = &CFF_CMAP_ENCODING_CLASS_REC_GET; |
} |
|
error = FT_CMap_New( clazz, NULL, &cmaprec, NULL ); |
} |
} |
} |
|
Exit: |
return error; |
} |
|
|
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 ) /* CFF_Driver */ |
{ |
CFF_Driver driver = (CFF_Driver)module; |
|
|
/* set default property values */ |
#ifdef CFF_CONFIG_OPTION_OLD_ENGINE |
driver->hinting_engine = FT_CFF_HINTING_FREETYPE; |
#else |
driver->hinting_engine = FT_CFF_HINTING_ADOBE; |
#endif |
driver->no_stem_darkening = FALSE; |
|
return FT_Err_Ok; |
} |
|
|
FT_LOCAL_DEF( void ) |
cff_driver_done( FT_Module module ) /* CFF_Driver */ |
{ |
FT_UNUSED( module ); |
} |
|
|
/* END */ |