1475 lines
45 KiB
C
1475 lines
45 KiB
C
/***************************************************************************/
|
|
/* */
|
|
/* t1decode.c */
|
|
/* */
|
|
/* PostScript Type 1 decoding routines (body). */
|
|
/* */
|
|
/* Copyright 2000-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 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_POSTSCRIPT_HINTS_H
|
|
#include FT_OUTLINE_H
|
|
|
|
#include "t1decode.h"
|
|
#include "psobjs.h"
|
|
|
|
#include "psauxerr.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_t1decode
|
|
|
|
|
|
typedef enum T1_Operator_
|
|
{
|
|
op_none = 0,
|
|
op_endchar,
|
|
op_hsbw,
|
|
op_seac,
|
|
op_sbw,
|
|
op_closepath,
|
|
op_hlineto,
|
|
op_hmoveto,
|
|
op_hvcurveto,
|
|
op_rlineto,
|
|
op_rmoveto,
|
|
op_rrcurveto,
|
|
op_vhcurveto,
|
|
op_vlineto,
|
|
op_vmoveto,
|
|
op_dotsection,
|
|
op_hstem,
|
|
op_hstem3,
|
|
op_vstem,
|
|
op_vstem3,
|
|
op_div,
|
|
op_callothersubr,
|
|
op_callsubr,
|
|
op_pop,
|
|
op_return,
|
|
op_setcurrentpoint,
|
|
op_unknown15,
|
|
|
|
op_max /* never remove this one */
|
|
|
|
} T1_Operator;
|
|
|
|
|
|
static
|
|
const FT_Int t1_args_count[op_max] =
|
|
{
|
|
0, /* none */
|
|
0, /* endchar */
|
|
2, /* hsbw */
|
|
5, /* seac */
|
|
4, /* sbw */
|
|
0, /* closepath */
|
|
1, /* hlineto */
|
|
1, /* hmoveto */
|
|
4, /* hvcurveto */
|
|
2, /* rlineto */
|
|
2, /* rmoveto */
|
|
6, /* rrcurveto */
|
|
4, /* vhcurveto */
|
|
1, /* vlineto */
|
|
1, /* vmoveto */
|
|
0, /* dotsection */
|
|
2, /* hstem */
|
|
6, /* hstem3 */
|
|
2, /* vstem */
|
|
6, /* vstem3 */
|
|
2, /* div */
|
|
-1, /* callothersubr */
|
|
1, /* callsubr */
|
|
0, /* pop */
|
|
0, /* return */
|
|
2, /* setcurrentpoint */
|
|
2 /* opcode 15 (undocumented and obsolete) */
|
|
};
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* <Function> */
|
|
/* t1_lookup_glyph_by_stdcharcode */
|
|
/* */
|
|
/* <Description> */
|
|
/* Looks up a given glyph by its StandardEncoding charcode. Used to */
|
|
/* implement the SEAC Type 1 operator. */
|
|
/* */
|
|
/* <Input> */
|
|
/* face :: The current face object. */
|
|
/* */
|
|
/* charcode :: The character code to look for. */
|
|
/* */
|
|
/* <Return> */
|
|
/* A glyph index in the font face. Returns -1 if the corresponding */
|
|
/* glyph wasn't found. */
|
|
/* */
|
|
static FT_Int
|
|
t1_lookup_glyph_by_stdcharcode( T1_Decoder decoder,
|
|
FT_Int charcode )
|
|
{
|
|
FT_UInt n;
|
|
const FT_String* glyph_name;
|
|
FT_Service_PsCMaps psnames = decoder->psnames;
|
|
|
|
|
|
/* check range of standard char code */
|
|
if ( charcode < 0 || charcode > 255 )
|
|
return -1;
|
|
|
|
glyph_name = psnames->adobe_std_strings(
|
|
psnames->adobe_std_encoding[charcode]);
|
|
|
|
for ( n = 0; n < decoder->num_glyphs; n++ )
|
|
{
|
|
FT_String* name = (FT_String*)decoder->glyph_names[n];
|
|
|
|
|
|
if ( name && name[0] == glyph_name[0] &&
|
|
ft_strcmp( name, glyph_name ) == 0 )
|
|
return n;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* <Function> */
|
|
/* t1operator_seac */
|
|
/* */
|
|
/* <Description> */
|
|
/* Implements the `seac' Type 1 operator for a Type 1 decoder. */
|
|
/* */
|
|
/* <Input> */
|
|
/* decoder :: The current CID decoder. */
|
|
/* */
|
|
/* asb :: The accent's side bearing. */
|
|
/* */
|
|
/* adx :: The horizontal offset of the accent. */
|
|
/* */
|
|
/* ady :: The vertical offset of the accent. */
|
|
/* */
|
|
/* bchar :: The base character's StandardEncoding charcode. */
|
|
/* */
|
|
/* achar :: The accent character's StandardEncoding charcode. */
|
|
/* */
|
|
/* <Return> */
|
|
/* FreeType error code. 0 means success. */
|
|
/* */
|
|
static FT_Error
|
|
t1operator_seac( T1_Decoder decoder,
|
|
FT_Pos asb,
|
|
FT_Pos adx,
|
|
FT_Pos ady,
|
|
FT_Int bchar,
|
|
FT_Int achar )
|
|
{
|
|
FT_Error error;
|
|
FT_Int bchar_index, achar_index;
|
|
#if 0
|
|
FT_Int n_base_points;
|
|
FT_Outline* base = decoder->builder.base;
|
|
#endif
|
|
FT_Vector left_bearing, advance;
|
|
|
|
|
|
/* seac weirdness */
|
|
adx += decoder->builder.left_bearing.x;
|
|
|
|
/* `glyph_names' is set to 0 for CID fonts which do not */
|
|
/* include an encoding. How can we deal with these? */
|
|
if ( decoder->glyph_names == 0 )
|
|
{
|
|
FT_ERROR(( "t1operator_seac:" ));
|
|
FT_ERROR(( " glyph names table not available in this font!\n" ));
|
|
return PSaux_Err_Syntax_Error;
|
|
}
|
|
|
|
bchar_index = t1_lookup_glyph_by_stdcharcode( decoder, bchar );
|
|
achar_index = t1_lookup_glyph_by_stdcharcode( decoder, achar );
|
|
|
|
if ( bchar_index < 0 || achar_index < 0 )
|
|
{
|
|
FT_ERROR(( "t1operator_seac:" ));
|
|
FT_ERROR(( " invalid seac character code arguments\n" ));
|
|
return PSaux_Err_Syntax_Error;
|
|
}
|
|
|
|
/* if we are trying to load a composite glyph, do not load the */
|
|
/* accent character and return the array of subglyphs. */
|
|
if ( decoder->builder.no_recurse )
|
|
{
|
|
FT_GlyphSlot glyph = (FT_GlyphSlot)decoder->builder.glyph;
|
|
FT_GlyphLoader loader = glyph->internal->loader;
|
|
FT_SubGlyph subg;
|
|
|
|
|
|
/* reallocate subglyph array if necessary */
|
|
error = FT_GlyphLoader_CheckSubGlyphs( loader, 2 );
|
|
if ( error )
|
|
goto Exit;
|
|
|
|
subg = loader->current.subglyphs;
|
|
|
|
/* subglyph 0 = base character */
|
|
subg->index = bchar_index;
|
|
subg->flags = FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES |
|
|
FT_SUBGLYPH_FLAG_USE_MY_METRICS;
|
|
subg->arg1 = 0;
|
|
subg->arg2 = 0;
|
|
subg++;
|
|
|
|
/* subglyph 1 = accent character */
|
|
subg->index = achar_index;
|
|
subg->flags = FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES;
|
|
subg->arg1 = (FT_Int)( adx - asb );
|
|
subg->arg2 = (FT_Int)ady;
|
|
|
|
/* set up remaining glyph fields */
|
|
glyph->num_subglyphs = 2;
|
|
glyph->subglyphs = loader->base.subglyphs;
|
|
glyph->format = FT_GLYPH_FORMAT_COMPOSITE;
|
|
|
|
loader->current.num_subglyphs = 2;
|
|
goto Exit;
|
|
}
|
|
|
|
/* First load `bchar' in builder */
|
|
/* now load the unscaled outline */
|
|
|
|
FT_GlyphLoader_Prepare( decoder->builder.loader ); /* prepare loader */
|
|
|
|
error = t1_decoder_parse_glyph( decoder, bchar_index );
|
|
if ( error )
|
|
goto Exit;
|
|
|
|
/* save the left bearing and width of the base character */
|
|
/* as they will be erased by the next load. */
|
|
|
|
left_bearing = decoder->builder.left_bearing;
|
|
advance = decoder->builder.advance;
|
|
|
|
decoder->builder.left_bearing.x = 0;
|
|
decoder->builder.left_bearing.y = 0;
|
|
|
|
decoder->builder.pos_x = adx - asb;
|
|
decoder->builder.pos_y = ady;
|
|
|
|
/* Now load `achar' on top of */
|
|
/* the base outline */
|
|
error = t1_decoder_parse_glyph( decoder, achar_index );
|
|
if ( error )
|
|
goto Exit;
|
|
|
|
/* restore the left side bearing and */
|
|
/* advance width of the base character */
|
|
|
|
decoder->builder.left_bearing = left_bearing;
|
|
decoder->builder.advance = advance;
|
|
|
|
decoder->builder.pos_x = 0;
|
|
decoder->builder.pos_y = 0;
|
|
|
|
Exit:
|
|
return error;
|
|
}
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* <Function> */
|
|
/* t1_decoder_parse_charstrings */
|
|
/* */
|
|
/* <Description> */
|
|
/* Parses a given Type 1 charstrings program. */
|
|
/* */
|
|
/* <Input> */
|
|
/* decoder :: The current Type 1 decoder. */
|
|
/* */
|
|
/* charstring_base :: The base address of the charstring stream. */
|
|
/* */
|
|
/* charstring_len :: The length in bytes of the charstring stream. */
|
|
/* */
|
|
/* <Return> */
|
|
/* FreeType error code. 0 means success. */
|
|
/* */
|
|
FT_LOCAL_DEF( FT_Error )
|
|
t1_decoder_parse_charstrings( T1_Decoder decoder,
|
|
FT_Byte* charstring_base,
|
|
FT_UInt charstring_len )
|
|
{
|
|
FT_Error error;
|
|
T1_Decoder_Zone zone;
|
|
FT_Byte* ip;
|
|
FT_Byte* limit;
|
|
T1_Builder builder = &decoder->builder;
|
|
FT_Pos x, y, orig_x, orig_y;
|
|
FT_Int known_othersubr_result_cnt = 0;
|
|
FT_Int unknown_othersubr_result_cnt = 0;
|
|
|
|
T1_Hints_Funcs hinter;
|
|
|
|
|
|
/* we don't want to touch the source code -- use macro trick */
|
|
#define start_point t1_builder_start_point
|
|
#define check_points t1_builder_check_points
|
|
#define add_point t1_builder_add_point
|
|
#define add_point1 t1_builder_add_point1
|
|
#define add_contour t1_builder_add_contour
|
|
#define close_contour t1_builder_close_contour
|
|
|
|
/* First of all, initialize the decoder */
|
|
decoder->top = decoder->stack;
|
|
decoder->zone = decoder->zones;
|
|
zone = decoder->zones;
|
|
|
|
builder->parse_state = T1_Parse_Start;
|
|
|
|
hinter = (T1_Hints_Funcs)builder->hints_funcs;
|
|
|
|
/* a font that reads BuildCharArray without setting */
|
|
/* its values first is buggy, but ... */
|
|
FT_ASSERT( ( decoder->len_buildchar == 0 ) ==
|
|
( decoder->buildchar == NULL ) );
|
|
|
|
if ( decoder->len_buildchar > 0 )
|
|
ft_memset( &decoder->buildchar[0],
|
|
0,
|
|
sizeof( decoder->buildchar[0] ) * decoder->len_buildchar );
|
|
|
|
FT_TRACE4(( "\nStart charstring\n" ));
|
|
|
|
zone->base = charstring_base;
|
|
limit = zone->limit = charstring_base + charstring_len;
|
|
ip = zone->cursor = zone->base;
|
|
|
|
error = PSaux_Err_Ok;
|
|
|
|
x = orig_x = builder->pos_x;
|
|
y = orig_y = builder->pos_y;
|
|
|
|
/* begin hints recording session, if any */
|
|
if ( hinter )
|
|
hinter->open( hinter->hints );
|
|
|
|
/* now, execute loop */
|
|
while ( ip < limit )
|
|
{
|
|
FT_Long* top = decoder->top;
|
|
T1_Operator op = op_none;
|
|
FT_Long value = 0;
|
|
|
|
|
|
FT_ASSERT( known_othersubr_result_cnt == 0 ||
|
|
unknown_othersubr_result_cnt == 0 );
|
|
|
|
FT_TRACE5(( " (%d)", decoder->top - decoder->stack ));
|
|
|
|
/*********************************************************************/
|
|
/* */
|
|
/* Decode operator or operand */
|
|
/* */
|
|
/* */
|
|
|
|
/* first of all, decompress operator or value */
|
|
switch ( *ip++ )
|
|
{
|
|
case 1:
|
|
op = op_hstem;
|
|
break;
|
|
|
|
case 3:
|
|
op = op_vstem;
|
|
break;
|
|
case 4:
|
|
op = op_vmoveto;
|
|
break;
|
|
case 5:
|
|
op = op_rlineto;
|
|
break;
|
|
case 6:
|
|
op = op_hlineto;
|
|
break;
|
|
case 7:
|
|
op = op_vlineto;
|
|
break;
|
|
case 8:
|
|
op = op_rrcurveto;
|
|
break;
|
|
case 9:
|
|
op = op_closepath;
|
|
break;
|
|
case 10:
|
|
op = op_callsubr;
|
|
break;
|
|
case 11:
|
|
op = op_return;
|
|
break;
|
|
|
|
case 13:
|
|
op = op_hsbw;
|
|
break;
|
|
case 14:
|
|
op = op_endchar;
|
|
break;
|
|
|
|
case 15: /* undocumented, obsolete operator */
|
|
op = op_unknown15;
|
|
break;
|
|
|
|
case 21:
|
|
op = op_rmoveto;
|
|
break;
|
|
case 22:
|
|
op = op_hmoveto;
|
|
break;
|
|
|
|
case 30:
|
|
op = op_vhcurveto;
|
|
break;
|
|
case 31:
|
|
op = op_hvcurveto;
|
|
break;
|
|
|
|
case 12:
|
|
if ( ip > limit )
|
|
{
|
|
FT_ERROR(( "t1_decoder_parse_charstrings: "
|
|
"invalid escape (12+EOF)\n" ));
|
|
goto Syntax_Error;
|
|
}
|
|
|
|
switch ( *ip++ )
|
|
{
|
|
case 0:
|
|
op = op_dotsection;
|
|
break;
|
|
case 1:
|
|
op = op_vstem3;
|
|
break;
|
|
case 2:
|
|
op = op_hstem3;
|
|
break;
|
|
case 6:
|
|
op = op_seac;
|
|
break;
|
|
case 7:
|
|
op = op_sbw;
|
|
break;
|
|
case 12:
|
|
op = op_div;
|
|
break;
|
|
case 16:
|
|
op = op_callothersubr;
|
|
break;
|
|
case 17:
|
|
op = op_pop;
|
|
break;
|
|
case 33:
|
|
op = op_setcurrentpoint;
|
|
break;
|
|
|
|
default:
|
|
FT_ERROR(( "t1_decoder_parse_charstrings: "
|
|
"invalid escape (12+%d)\n",
|
|
ip[-1] ));
|
|
goto Syntax_Error;
|
|
}
|
|
break;
|
|
|
|
case 255: /* four bytes integer */
|
|
if ( ip + 4 > limit )
|
|
{
|
|
FT_ERROR(( "t1_decoder_parse_charstrings: "
|
|
"unexpected EOF in integer\n" ));
|
|
goto Syntax_Error;
|
|
}
|
|
|
|
value = (FT_Int32)( ((FT_Long)ip[0] << 24) |
|
|
((FT_Long)ip[1] << 16) |
|
|
((FT_Long)ip[2] << 8 ) |
|
|
ip[3] );
|
|
ip += 4;
|
|
break;
|
|
|
|
default:
|
|
if ( ip[-1] >= 32 )
|
|
{
|
|
if ( ip[-1] < 247 )
|
|
value = (FT_Long)ip[-1] - 139;
|
|
else
|
|
{
|
|
if ( ++ip > limit )
|
|
{
|
|
FT_ERROR(( "t1_decoder_parse_charstrings: " ));
|
|
FT_ERROR(( "unexpected EOF in integer\n" ));
|
|
goto Syntax_Error;
|
|
}
|
|
|
|
if ( ip[-2] < 251 )
|
|
value = ( ( (FT_Long)ip[-2] - 247 ) << 8 ) + ip[-1] + 108;
|
|
else
|
|
value = -( ( ( (FT_Long)ip[-2] - 251 ) << 8 ) + ip[-1] + 108 );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
FT_ERROR(( "t1_decoder_parse_charstrings: "
|
|
"invalid byte (%d)\n", ip[-1] ));
|
|
goto Syntax_Error;
|
|
}
|
|
}
|
|
|
|
if ( unknown_othersubr_result_cnt > 0 )
|
|
{
|
|
switch ( op )
|
|
{
|
|
case op_callsubr:
|
|
case op_return:
|
|
case op_none:
|
|
case op_pop:
|
|
break;
|
|
|
|
default:
|
|
/* all operands have been transferred by previous pops */
|
|
unknown_othersubr_result_cnt = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*********************************************************************/
|
|
/* */
|
|
/* Push value on stack, or process operator */
|
|
/* */
|
|
/* */
|
|
if ( op == op_none )
|
|
{
|
|
if ( top - decoder->stack >= T1_MAX_CHARSTRINGS_OPERANDS )
|
|
{
|
|
FT_ERROR(( "t1_decoder_parse_charstrings: stack overflow!\n" ));
|
|
goto Syntax_Error;
|
|
}
|
|
|
|
FT_TRACE4(( " %ld", value ));
|
|
|
|
*top++ = value;
|
|
decoder->top = top;
|
|
}
|
|
else if ( op == op_callothersubr ) /* callothersubr */
|
|
{
|
|
FT_Int subr_no;
|
|
FT_Int arg_cnt;
|
|
|
|
|
|
FT_TRACE4(( " callothersubr" ));
|
|
|
|
if ( top - decoder->stack < 2 )
|
|
goto Stack_Underflow;
|
|
|
|
top -= 2;
|
|
|
|
subr_no = (FT_Int)top[1];
|
|
arg_cnt = (FT_Int)top[0];
|
|
|
|
/***********************************************************/
|
|
/* */
|
|
/* remove all operands to callothersubr from the stack */
|
|
/* */
|
|
/* for handled othersubrs, where we know the number of */
|
|
/* arguments, we increase the stack by the value of */
|
|
/* known_othersubr_result_cnt */
|
|
/* */
|
|
/* for unhandled othersubrs the following pops adjust the */
|
|
/* stack pointer as necessary */
|
|
|
|
if ( arg_cnt > top - decoder->stack )
|
|
goto Stack_Underflow;
|
|
|
|
top -= arg_cnt;
|
|
|
|
known_othersubr_result_cnt = 0;
|
|
unknown_othersubr_result_cnt = 0;
|
|
|
|
/* XXX TODO: The checks to `arg_count == <whatever>' */
|
|
/* might not be correct; an othersubr expects a certain */
|
|
/* number of operands on the PostScript stack (as opposed */
|
|
/* to the T1 stack) but it doesn't have to put them there */
|
|
/* by itself; previous othersubrs might have left the */
|
|
/* operands there if they were not followed by an */
|
|
/* appropriate number of pops */
|
|
/* */
|
|
/* On the other hand, Adobe Reader 7.0.8 for Linux doesn't */
|
|
/* accept a font that contains charstrings like */
|
|
/* */
|
|
/* 100 200 2 20 callothersubr */
|
|
/* 300 1 20 callothersubr pop */
|
|
/* */
|
|
/* Perhaps this is the reason why BuildCharArray exists. */
|
|
|
|
switch ( subr_no )
|
|
{
|
|
case 1: /* start flex feature */
|
|
if ( arg_cnt != 0 )
|
|
goto Unexpected_OtherSubr;
|
|
|
|
decoder->flex_state = 1;
|
|
decoder->num_flex_vectors = 0;
|
|
if ( start_point( builder, x, y ) ||
|
|
check_points( builder, 6 ) )
|
|
goto Fail;
|
|
break;
|
|
|
|
case 2: /* add flex vectors */
|
|
{
|
|
FT_Int idx;
|
|
|
|
|
|
if ( arg_cnt != 0 )
|
|
goto Unexpected_OtherSubr;
|
|
|
|
/* note that we should not add a point for index 0; */
|
|
/* this will move our current position to the flex */
|
|
/* point without adding any point to the outline */
|
|
idx = decoder->num_flex_vectors++;
|
|
if ( idx > 0 && idx < 7 )
|
|
add_point( builder,
|
|
x,
|
|
y,
|
|
(FT_Byte)( idx == 3 || idx == 6 ) );
|
|
}
|
|
break;
|
|
|
|
case 0: /* end flex feature */
|
|
if ( arg_cnt != 3 )
|
|
goto Unexpected_OtherSubr;
|
|
|
|
if ( decoder->flex_state == 0 ||
|
|
decoder->num_flex_vectors != 7 )
|
|
{
|
|
FT_ERROR(( "t1_decoder_parse_charstrings: "
|
|
"unexpected flex end\n" ));
|
|
goto Syntax_Error;
|
|
}
|
|
|
|
/* the two `results' are popped by the following setcurrentpoint */
|
|
known_othersubr_result_cnt = 2;
|
|
break;
|
|
|
|
case 3: /* change hints */
|
|
if ( arg_cnt != 1 )
|
|
goto Unexpected_OtherSubr;
|
|
|
|
known_othersubr_result_cnt = 1;
|
|
|
|
if ( hinter )
|
|
hinter->reset( hinter->hints, builder->current->n_points );
|
|
|
|
break;
|
|
|
|
case 12:
|
|
case 13:
|
|
/* counter control hints, clear stack */
|
|
top = decoder->stack;
|
|
break;
|
|
|
|
case 14:
|
|
case 15:
|
|
case 16:
|
|
case 17:
|
|
case 18: /* multiple masters */
|
|
{
|
|
PS_Blend blend = decoder->blend;
|
|
FT_UInt num_points, nn, mm;
|
|
FT_Long* delta;
|
|
FT_Long* values;
|
|
|
|
|
|
if ( !blend )
|
|
{
|
|
FT_ERROR(( "t1_decoder_parse_charstrings: " ));
|
|
FT_ERROR(( "unexpected multiple masters operator!\n" ));
|
|
goto Syntax_Error;
|
|
}
|
|
|
|
num_points = (FT_UInt)subr_no - 13 + ( subr_no == 18 );
|
|
if ( arg_cnt != (FT_Int)( num_points * blend->num_designs ) )
|
|
{
|
|
FT_ERROR(( "t1_decoder_parse_charstrings: " ));
|
|
FT_ERROR(( "incorrect number of mm arguments\n" ));
|
|
goto Syntax_Error;
|
|
}
|
|
|
|
/* we want to compute: */
|
|
/* */
|
|
/* a0*w0 + a1*w1 + ... + ak*wk */
|
|
/* */
|
|
/* but we only have the a0, a1-a0, a2-a0, .. ak-a0 */
|
|
/* however, given that w0 + w1 + ... + wk == 1, we can */
|
|
/* rewrite it easily as: */
|
|
/* */
|
|
/* a0 + (a1-a0)*w1 + (a2-a0)*w2 + .. + (ak-a0)*wk */
|
|
/* */
|
|
/* where k == num_designs-1 */
|
|
/* */
|
|
/* I guess that's why it's written in this `compact' */
|
|
/* form. */
|
|
/* */
|
|
delta = top + num_points;
|
|
values = top;
|
|
for ( nn = 0; nn < num_points; nn++ )
|
|
{
|
|
FT_Long tmp = values[0];
|
|
|
|
|
|
for ( mm = 1; mm < blend->num_designs; mm++ )
|
|
tmp += FT_MulFix( *delta++, blend->weight_vector[mm] );
|
|
|
|
*values++ = tmp;
|
|
}
|
|
|
|
known_othersubr_result_cnt = num_points;
|
|
break;
|
|
}
|
|
|
|
#ifdef CAN_HANDLE_NON_INTEGRAL_T1_OPERANDS
|
|
|
|
/* We cannot yet enable these since currently */
|
|
/* our T1 stack stores integers which lack the */
|
|
/* precision to express the values */
|
|
|
|
case 19:
|
|
/* <idx> 1 19 callothersubr */
|
|
/* => replace elements starting from index cvi( <idx> ) */
|
|
/* of BuildCharArray with WeightVector */
|
|
{
|
|
FT_Int idx;
|
|
PS_Blend blend = decoder->blend;
|
|
|
|
|
|
if ( arg_cnt != 1 || blend == NULL )
|
|
goto Unexpected_OtherSubr;
|
|
|
|
idx = top[0];
|
|
|
|
if ( idx < 0 ||
|
|
idx + blend->num_designs > decoder->face->len_buildchar )
|
|
goto Unexpected_OtherSubr;
|
|
|
|
ft_memcpy( &decoder->buildchar[idx],
|
|
blend->weight_vector,
|
|
blend->num_designs *
|
|
sizeof( blend->weight_vector[0] ) );
|
|
}
|
|
break;
|
|
|
|
case 20:
|
|
/* <arg1> <arg2> 2 20 callothersubr pop */
|
|
/* ==> push <arg1> + <arg2> onto T1 stack */
|
|
if ( arg_cnt != 2 )
|
|
goto Unexpected_OtherSubr;
|
|
|
|
top[0] += top[1]; /* XXX (over|under)flow */
|
|
|
|
known_othersubr_result_cnt = 1;
|
|
break;
|
|
|
|
case 21:
|
|
/* <arg1> <arg2> 2 21 callothersubr pop */
|
|
/* ==> push <arg1> - <arg2> onto T1 stack */
|
|
if ( arg_cnt != 2 )
|
|
goto Unexpected_OtherSubr;
|
|
|
|
top[0] -= top[1]; /* XXX (over|under)flow */
|
|
|
|
known_othersubr_result_cnt = 1;
|
|
break;
|
|
|
|
case 22:
|
|
/* <arg1> <arg2> 2 22 callothersubr pop */
|
|
/* ==> push <arg1> * <arg2> onto T1 stack */
|
|
if ( arg_cnt != 2 )
|
|
goto Unexpected_OtherSubr;
|
|
|
|
top[0] *= top[1]; /* XXX (over|under)flow */
|
|
|
|
known_othersubr_result_cnt = 1;
|
|
break;
|
|
|
|
case 23:
|
|
/* <arg1> <arg2> 2 23 callothersubr pop */
|
|
/* ==> push <arg1> / <arg2> onto T1 stack */
|
|
if ( arg_cnt != 2 || top[1] == 0 )
|
|
goto Unexpected_OtherSubr;
|
|
|
|
top[0] /= top[1]; /* XXX (over|under)flow */
|
|
|
|
known_othersubr_result_cnt = 1;
|
|
break;
|
|
|
|
#endif /* CAN_HANDLE_NON_INTEGRAL_T1_OPERANDS */
|
|
|
|
case 24:
|
|
/* <val> <idx> 2 24 callothersubr */
|
|
/* => set BuildCharArray[cvi( <idx> )] = <val> */
|
|
{
|
|
FT_Int idx;
|
|
PS_Blend blend = decoder->blend;
|
|
|
|
if ( arg_cnt != 2 || blend == NULL )
|
|
goto Unexpected_OtherSubr;
|
|
|
|
idx = top[1];
|
|
|
|
if ( idx < 0 || (FT_UInt) idx >= decoder->len_buildchar )
|
|
goto Unexpected_OtherSubr;
|
|
|
|
decoder->buildchar[idx] = top[0];
|
|
}
|
|
break;
|
|
|
|
case 25:
|
|
/* <idx> 1 25 callothersubr pop */
|
|
/* => push BuildCharArray[cvi( idx )] */
|
|
/* onto T1 stack */
|
|
{
|
|
FT_Int idx;
|
|
PS_Blend blend = decoder->blend;
|
|
|
|
if ( arg_cnt != 1 || blend == NULL )
|
|
goto Unexpected_OtherSubr;
|
|
|
|
idx = top[0];
|
|
|
|
if ( idx < 0 || (FT_UInt) idx >= decoder->len_buildchar )
|
|
goto Unexpected_OtherSubr;
|
|
|
|
top[0] = decoder->buildchar[idx];
|
|
}
|
|
|
|
known_othersubr_result_cnt = 1;
|
|
break;
|
|
|
|
#if 0
|
|
case 26:
|
|
/* <val> mark <idx> ==> set BuildCharArray[cvi( <idx> )] = <val>, */
|
|
/* leave mark on T1 stack */
|
|
/* <val> <idx> ==> set BuildCharArray[cvi( <idx> )] = <val> */
|
|
XXX who has left his mark on the (PostScript) stack ?;
|
|
break;
|
|
#endif
|
|
|
|
case 27:
|
|
/* <res1> <res2> <val1> <val2> 4 27 callothersubr pop */
|
|
/* ==> push <res1> onto T1 stack if <val1> <= <val2>, */
|
|
/* otherwise push <res2> */
|
|
if ( arg_cnt != 4 )
|
|
goto Unexpected_OtherSubr;
|
|
|
|
if ( top[2] > top[3] )
|
|
top[0] = top[1];
|
|
|
|
known_othersubr_result_cnt = 1;
|
|
break;
|
|
|
|
#ifdef CAN_HANDLE_NON_INTEGRAL_T1_OPERANDS
|
|
case 28:
|
|
/* 0 28 callothersubr pop */
|
|
/* => push random value from interval [0, 1) onto stack */
|
|
if ( arg_cnt != 0 )
|
|
goto Unexpected_OtherSubr;
|
|
|
|
top[0] = FT_rand();
|
|
known_othersubr_result_cnt = 1;
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
FT_ERROR(( "t1_decoder_parse_charstrings: "
|
|
"unknown othersubr [%d %d], wish me luck!\n",
|
|
arg_cnt, subr_no ));
|
|
unknown_othersubr_result_cnt = arg_cnt;
|
|
break;
|
|
|
|
Unexpected_OtherSubr:
|
|
FT_ERROR(( "t1_decoder_parse_charstrings: "
|
|
"invalid othersubr [%d %d]!\n", arg_cnt, subr_no ));
|
|
goto Syntax_Error;
|
|
}
|
|
|
|
top += known_othersubr_result_cnt;
|
|
|
|
decoder->top = top;
|
|
}
|
|
else /* general operator */
|
|
{
|
|
FT_Int num_args = t1_args_count[op];
|
|
|
|
|
|
FT_ASSERT( num_args >= 0 );
|
|
|
|
if ( top - decoder->stack < num_args )
|
|
goto Stack_Underflow;
|
|
|
|
/* XXX Operators usually take their operands from the */
|
|
/* bottom of the stack, i.e., the operands are */
|
|
/* decoder->stack[0], ..., decoder->stack[num_args - 1]; */
|
|
/* only div, callsubr, and callothersubr are different. */
|
|
/* In practice it doesn't matter (?). */
|
|
|
|
#ifdef FT_DEBUG_LEVEL_TRACE
|
|
|
|
switch ( op )
|
|
{
|
|
case op_callsubr:
|
|
case op_div:
|
|
case op_callothersubr:
|
|
case op_pop:
|
|
case op_return:
|
|
break;
|
|
|
|
default:
|
|
if ( top - decoder->stack != num_args )
|
|
FT_TRACE0(( "t1_decoder_parse_charstrings: "
|
|
"too much operands on the stack "
|
|
"(seen %d, expected %d)\n",
|
|
top - decoder->stack, num_args ));
|
|
break;
|
|
}
|
|
|
|
#endif /* FT_DEBUG_LEVEL_TRACE */
|
|
|
|
top -= num_args;
|
|
|
|
switch ( op )
|
|
{
|
|
case op_endchar:
|
|
FT_TRACE4(( " endchar" ));
|
|
|
|
close_contour( builder );
|
|
|
|
/* close hints recording session */
|
|
if ( hinter )
|
|
{
|
|
if (hinter->close( hinter->hints, builder->current->n_points ))
|
|
goto Syntax_Error;
|
|
|
|
/* apply hints to the loaded glyph outline now */
|
|
hinter->apply( hinter->hints,
|
|
builder->current,
|
|
(PSH_Globals) builder->hints_globals,
|
|
decoder->hint_mode );
|
|
}
|
|
|
|
/* add current outline to the glyph slot */
|
|
FT_GlyphLoader_Add( builder->loader );
|
|
|
|
FT_TRACE4(( "\n" ));
|
|
|
|
/* the compiler should optimize away this empty loop but ... */
|
|
|
|
#ifdef FT_DEBUG_LEVEL_TRACE
|
|
|
|
if ( decoder->len_buildchar > 0 )
|
|
{
|
|
FT_UInt i;
|
|
|
|
|
|
FT_TRACE4(( "BuildCharArray = [ " ));
|
|
|
|
for ( i = 0; i < decoder->len_buildchar; ++i )
|
|
FT_TRACE4(( "%d ", decoder->buildchar[ i ] ));
|
|
|
|
FT_TRACE4(( "]\n" ));
|
|
}
|
|
|
|
#endif /* FT_DEBUG_LEVEL_TRACE */
|
|
|
|
FT_TRACE4(( "\n" ));
|
|
|
|
/* return now! */
|
|
return PSaux_Err_Ok;
|
|
|
|
case op_hsbw:
|
|
FT_TRACE4(( " hsbw" ));
|
|
|
|
builder->parse_state = T1_Parse_Have_Width;
|
|
|
|
builder->left_bearing.x += top[0];
|
|
builder->advance.x = top[1];
|
|
builder->advance.y = 0;
|
|
|
|
orig_x = builder->last.x = x = builder->pos_x + top[0];
|
|
orig_y = builder->last.y = y = builder->pos_y;
|
|
|
|
FT_UNUSED( orig_y );
|
|
|
|
/* the `metrics_only' indicates that we only want to compute */
|
|
/* the glyph's metrics (lsb + advance width), not load the */
|
|
/* rest of it; so exit immediately */
|
|
if ( builder->metrics_only )
|
|
return PSaux_Err_Ok;
|
|
|
|
break;
|
|
|
|
case op_seac:
|
|
/* return immediately after the processing */
|
|
return t1operator_seac( decoder, top[0], top[1], top[2],
|
|
(FT_Int)top[3], (FT_Int)top[4] );
|
|
|
|
case op_sbw:
|
|
FT_TRACE4(( " sbw" ));
|
|
|
|
builder->parse_state = T1_Parse_Have_Width;
|
|
|
|
builder->left_bearing.x += top[0];
|
|
builder->left_bearing.y += top[1];
|
|
builder->advance.x = top[2];
|
|
builder->advance.y = top[3];
|
|
|
|
builder->last.x = x = builder->pos_x + top[0];
|
|
builder->last.y = y = builder->pos_y + top[1];
|
|
|
|
/* the `metrics_only' indicates that we only want to compute */
|
|
/* the glyph's metrics (lsb + advance width), not load the */
|
|
/* rest of it; so exit immediately */
|
|
if ( builder->metrics_only )
|
|
return PSaux_Err_Ok;
|
|
|
|
break;
|
|
|
|
case op_closepath:
|
|
FT_TRACE4(( " closepath" ));
|
|
|
|
/* if there is no path, `closepath' is a no-op */
|
|
if ( builder->parse_state == T1_Parse_Have_Path ||
|
|
builder->parse_state == T1_Parse_Have_Moveto )
|
|
close_contour( builder );
|
|
|
|
builder->parse_state = T1_Parse_Have_Width;
|
|
break;
|
|
|
|
case op_hlineto:
|
|
FT_TRACE4(( " hlineto" ));
|
|
|
|
if ( start_point( builder, x, y ) )
|
|
goto Fail;
|
|
|
|
x += top[0];
|
|
goto Add_Line;
|
|
|
|
case op_hmoveto:
|
|
FT_TRACE4(( " hmoveto" ));
|
|
|
|
x += top[0];
|
|
if ( !decoder->flex_state )
|
|
{
|
|
if ( builder->parse_state == T1_Parse_Start )
|
|
goto Syntax_Error;
|
|
builder->parse_state = T1_Parse_Have_Moveto;
|
|
}
|
|
break;
|
|
|
|
case op_hvcurveto:
|
|
FT_TRACE4(( " hvcurveto" ));
|
|
|
|
if ( start_point( builder, x, y ) ||
|
|
check_points( builder, 3 ) )
|
|
goto Fail;
|
|
|
|
x += top[0];
|
|
add_point( builder, x, y, 0 );
|
|
x += top[1];
|
|
y += top[2];
|
|
add_point( builder, x, y, 0 );
|
|
y += top[3];
|
|
add_point( builder, x, y, 1 );
|
|
break;
|
|
|
|
case op_rlineto:
|
|
FT_TRACE4(( " rlineto" ));
|
|
|
|
if ( start_point( builder, x, y ) )
|
|
goto Fail;
|
|
|
|
x += top[0];
|
|
y += top[1];
|
|
|
|
Add_Line:
|
|
if ( add_point1( builder, x, y ) )
|
|
goto Fail;
|
|
break;
|
|
|
|
case op_rmoveto:
|
|
FT_TRACE4(( " rmoveto" ));
|
|
|
|
x += top[0];
|
|
y += top[1];
|
|
if ( !decoder->flex_state )
|
|
{
|
|
if ( builder->parse_state == T1_Parse_Start )
|
|
goto Syntax_Error;
|
|
builder->parse_state = T1_Parse_Have_Moveto;
|
|
}
|
|
break;
|
|
|
|
case op_rrcurveto:
|
|
FT_TRACE4(( " rcurveto" ));
|
|
|
|
if ( start_point( builder, x, y ) ||
|
|
check_points( builder, 3 ) )
|
|
goto Fail;
|
|
|
|
x += top[0];
|
|
y += top[1];
|
|
add_point( builder, x, y, 0 );
|
|
|
|
x += top[2];
|
|
y += top[3];
|
|
add_point( builder, x, y, 0 );
|
|
|
|
x += top[4];
|
|
y += top[5];
|
|
add_point( builder, x, y, 1 );
|
|
break;
|
|
|
|
case op_vhcurveto:
|
|
FT_TRACE4(( " vhcurveto" ));
|
|
|
|
if ( start_point( builder, x, y ) ||
|
|
check_points( builder, 3 ) )
|
|
goto Fail;
|
|
|
|
y += top[0];
|
|
add_point( builder, x, y, 0 );
|
|
x += top[1];
|
|
y += top[2];
|
|
add_point( builder, x, y, 0 );
|
|
x += top[3];
|
|
add_point( builder, x, y, 1 );
|
|
break;
|
|
|
|
case op_vlineto:
|
|
FT_TRACE4(( " vlineto" ));
|
|
|
|
if ( start_point( builder, x, y ) )
|
|
goto Fail;
|
|
|
|
y += top[0];
|
|
goto Add_Line;
|
|
|
|
case op_vmoveto:
|
|
FT_TRACE4(( " vmoveto" ));
|
|
|
|
y += top[0];
|
|
if ( !decoder->flex_state )
|
|
{
|
|
if ( builder->parse_state == T1_Parse_Start )
|
|
goto Syntax_Error;
|
|
builder->parse_state = T1_Parse_Have_Moveto;
|
|
}
|
|
break;
|
|
|
|
case op_div:
|
|
FT_TRACE4(( " div" ));
|
|
|
|
if ( top[1] )
|
|
{
|
|
*top = top[0] / top[1];
|
|
++top;
|
|
}
|
|
else
|
|
{
|
|
FT_ERROR(( "t1_decoder_parse_charstrings: division by 0\n" ));
|
|
goto Syntax_Error;
|
|
}
|
|
break;
|
|
|
|
case op_callsubr:
|
|
{
|
|
FT_Int idx;
|
|
|
|
|
|
FT_TRACE4(( " callsubr" ));
|
|
|
|
idx = (FT_Int)top[0];
|
|
if ( idx < 0 || idx >= (FT_Int)decoder->num_subrs )
|
|
{
|
|
FT_ERROR(( "t1_decoder_parse_charstrings: "
|
|
"invalid subrs index\n" ));
|
|
goto Syntax_Error;
|
|
}
|
|
|
|
if ( zone - decoder->zones >= T1_MAX_SUBRS_CALLS )
|
|
{
|
|
FT_ERROR(( "t1_decoder_parse_charstrings: "
|
|
"too many nested subrs\n" ));
|
|
goto Syntax_Error;
|
|
}
|
|
|
|
zone->cursor = ip; /* save current instruction pointer */
|
|
|
|
zone++;
|
|
|
|
/* The Type 1 driver stores subroutines without the seed bytes. */
|
|
/* The CID driver stores subroutines with seed bytes. This */
|
|
/* case is taken care of when decoder->subrs_len == 0. */
|
|
zone->base = decoder->subrs[idx];
|
|
|
|
if ( decoder->subrs_len )
|
|
zone->limit = zone->base + decoder->subrs_len[idx];
|
|
else
|
|
{
|
|
/* We are using subroutines from a CID font. We must adjust */
|
|
/* for the seed bytes. */
|
|
zone->base += ( decoder->lenIV >= 0 ? decoder->lenIV : 0 );
|
|
zone->limit = decoder->subrs[idx + 1];
|
|
}
|
|
|
|
zone->cursor = zone->base;
|
|
|
|
if ( !zone->base )
|
|
{
|
|
FT_ERROR(( "t1_decoder_parse_charstrings: "
|
|
"invoking empty subrs!\n" ));
|
|
goto Syntax_Error;
|
|
}
|
|
|
|
decoder->zone = zone;
|
|
ip = zone->base;
|
|
limit = zone->limit;
|
|
break;
|
|
}
|
|
|
|
case op_pop:
|
|
FT_TRACE4(( " pop" ));
|
|
|
|
if ( known_othersubr_result_cnt > 0 )
|
|
{
|
|
known_othersubr_result_cnt--;
|
|
/* ignore, we pushed the operands ourselves */
|
|
break;
|
|
}
|
|
|
|
if ( unknown_othersubr_result_cnt == 0 )
|
|
{
|
|
FT_ERROR(( "t1_decoder_parse_charstrings: "
|
|
"no more operands for othersubr!\n" ));
|
|
goto Syntax_Error;
|
|
}
|
|
|
|
unknown_othersubr_result_cnt--;
|
|
top++; /* `push' the operand to callothersubr onto the stack */
|
|
break;
|
|
|
|
case op_return:
|
|
FT_TRACE4(( " return" ));
|
|
|
|
if ( zone <= decoder->zones )
|
|
{
|
|
FT_ERROR(( "t1_decoder_parse_charstrings: unexpected return\n" ));
|
|
goto Syntax_Error;
|
|
}
|
|
|
|
zone--;
|
|
ip = zone->cursor;
|
|
limit = zone->limit;
|
|
decoder->zone = zone;
|
|
break;
|
|
|
|
case op_dotsection:
|
|
FT_TRACE4(( " dotsection" ));
|
|
|
|
break;
|
|
|
|
case op_hstem:
|
|
FT_TRACE4(( " hstem" ));
|
|
|
|
/* record horizontal hint */
|
|
if ( hinter )
|
|
{
|
|
/* top[0] += builder->left_bearing.y; */
|
|
hinter->stem( hinter->hints, 1, top );
|
|
}
|
|
|
|
break;
|
|
|
|
case op_hstem3:
|
|
FT_TRACE4(( " hstem3" ));
|
|
|
|
/* record horizontal counter-controlled hints */
|
|
if ( hinter )
|
|
hinter->stem3( hinter->hints, 1, top );
|
|
|
|
break;
|
|
|
|
case op_vstem:
|
|
FT_TRACE4(( " vstem" ));
|
|
|
|
/* record vertical hint */
|
|
if ( hinter )
|
|
{
|
|
top[0] += orig_x;
|
|
hinter->stem( hinter->hints, 0, top );
|
|
}
|
|
|
|
break;
|
|
|
|
case op_vstem3:
|
|
FT_TRACE4(( " vstem3" ));
|
|
|
|
/* record vertical counter-controlled hints */
|
|
if ( hinter )
|
|
{
|
|
FT_Pos dx = orig_x;
|
|
|
|
|
|
top[0] += dx;
|
|
top[2] += dx;
|
|
top[4] += dx;
|
|
hinter->stem3( hinter->hints, 0, top );
|
|
}
|
|
break;
|
|
|
|
case op_setcurrentpoint:
|
|
FT_TRACE4(( " setcurrentpoint" ));
|
|
|
|
/* From the T1 specs, section 6.4: */
|
|
/* */
|
|
/* The setcurrentpoint command is used only in */
|
|
/* conjunction with results from OtherSubrs procedures. */
|
|
|
|
/* known_othersubr_result_cnt != 0 is already handled above */
|
|
if ( decoder->flex_state != 1 )
|
|
{
|
|
FT_ERROR(( "t1_decoder_parse_charstrings: " ));
|
|
FT_ERROR(( "unexpected `setcurrentpoint'\n" ));
|
|
|
|
goto Syntax_Error;
|
|
}
|
|
else
|
|
decoder->flex_state = 0;
|
|
break;
|
|
|
|
case op_unknown15:
|
|
FT_TRACE4(( " opcode_15" ));
|
|
/* nothing to do except to pop the two arguments */
|
|
break;
|
|
|
|
default:
|
|
FT_ERROR(( "t1_decoder_parse_charstrings: "
|
|
"unhandled opcode %d\n", op ));
|
|
goto Syntax_Error;
|
|
}
|
|
|
|
/* XXX Operators usually clear the operand stack; */
|
|
/* only div, callsubr, callothersubr, pop, and */
|
|
/* return are different. */
|
|
/* In practice it doesn't matter (?). */
|
|
|
|
decoder->top = top;
|
|
|
|
} /* general operator processing */
|
|
|
|
} /* while ip < limit */
|
|
|
|
FT_TRACE4(( "..end..\n\n" ));
|
|
|
|
Fail:
|
|
return error;
|
|
|
|
Syntax_Error:
|
|
return PSaux_Err_Syntax_Error;
|
|
|
|
Stack_Underflow:
|
|
return PSaux_Err_Stack_Underflow;
|
|
}
|
|
|
|
|
|
/* parse a single Type 1 glyph */
|
|
FT_LOCAL_DEF( FT_Error )
|
|
t1_decoder_parse_glyph( T1_Decoder decoder,
|
|
FT_UInt glyph )
|
|
{
|
|
return decoder->parse_callback( decoder, glyph );
|
|
}
|
|
|
|
|
|
/* initialize T1 decoder */
|
|
FT_LOCAL_DEF( FT_Error )
|
|
t1_decoder_init( T1_Decoder decoder,
|
|
FT_Face face,
|
|
FT_Size size,
|
|
FT_GlyphSlot slot,
|
|
FT_Byte** glyph_names,
|
|
PS_Blend blend,
|
|
FT_Bool hinting,
|
|
FT_Render_Mode hint_mode,
|
|
T1_Decoder_Callback parse_callback )
|
|
{
|
|
FT_MEM_ZERO( decoder, sizeof ( *decoder ) );
|
|
|
|
/* retrieve PSNames interface from list of current modules */
|
|
{
|
|
FT_Service_PsCMaps psnames = 0;
|
|
|
|
|
|
FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS );
|
|
if ( !psnames )
|
|
{
|
|
FT_ERROR(( "t1_decoder_init: " ));
|
|
FT_ERROR(( "the `psnames' module is not available\n" ));
|
|
return PSaux_Err_Unimplemented_Feature;
|
|
}
|
|
|
|
decoder->psnames = psnames;
|
|
}
|
|
|
|
t1_builder_init( &decoder->builder, face, size, slot, hinting );
|
|
|
|
/* decoder->buildchar and decoder->len_buildchar have to be */
|
|
/* initialized by the caller since we cannot know the length */
|
|
/* of the BuildCharArray */
|
|
|
|
decoder->num_glyphs = (FT_UInt)face->num_glyphs;
|
|
decoder->glyph_names = glyph_names;
|
|
decoder->hint_mode = hint_mode;
|
|
decoder->blend = blend;
|
|
decoder->parse_callback = parse_callback;
|
|
|
|
decoder->funcs = t1_decoder_funcs;
|
|
|
|
return PSaux_Err_Ok;
|
|
}
|
|
|
|
|
|
/* finalize T1 decoder */
|
|
FT_LOCAL_DEF( void )
|
|
t1_decoder_done( T1_Decoder decoder )
|
|
{
|
|
t1_builder_done( &decoder->builder );
|
|
}
|
|
|
|
|
|
/* END */
|