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-rw-r--r--freetype/src/cff/cffdrivr.c5
-rw-r--r--freetype/src/cff/cffgload.c165
-rw-r--r--freetype/src/cff/cffgload.h8
-rw-r--r--freetype/src/cff/cffobjs.c9
-rw-r--r--freetype/src/cff/cffparse.c4
5 files changed, 145 insertions, 46 deletions
diff --git a/freetype/src/cff/cffdrivr.c b/freetype/src/cff/cffdrivr.c
index 217adf2f1..dad0b65d8 100644
--- a/freetype/src/cff/cffdrivr.c
+++ b/freetype/src/cff/cffdrivr.c
@@ -621,14 +621,15 @@
{
FT_Module sfnt;
FT_Module_Interface result;
- FT_Library library = driver->library;
- FT_UNUSED(library);
result = ft_service_list_lookup( FT_CFF_SERVICES_GET, module_interface );
if ( result != NULL )
return result;
+ if ( !driver )
+ return NULL;
+
/* we pass our request to the `sfnt' module */
sfnt = FT_Get_Module( driver->library, "sfnt" );
diff --git a/freetype/src/cff/cffgload.c b/freetype/src/cff/cffgload.c
index 40fa20b42..9330c0588 100644
--- a/freetype/src/cff/cffgload.c
+++ b/freetype/src/cff/cffgload.c
@@ -4,7 +4,8 @@
/* */
/* OpenType Glyph Loader (body). */
/* */
-/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by */
+/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */
+/* 2010 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -113,6 +114,9 @@
cff_op_closepath,
cff_op_callothersubr,
cff_op_pop,
+ cff_op_seac,
+ cff_op_sbw,
+ cff_op_setcurrentpoint,
/* do not remove */
cff_op_max
@@ -201,7 +205,10 @@
2, /* hsbw */
0,
0,
- 0
+ 0,
+ 5, /* seac */
+ 4, /* sbw */
+ 2 /* setcurrentpoint */
};
@@ -319,17 +326,23 @@
/* subroutines. */
/* */
/* <Input> */
- /* num_subrs :: The number of glyph subroutines. */
+ /* in_charstring_type :: The `CharstringType' value of the top DICT */
+ /* dictionary. */
+ /* */
+ /* num_subrs :: The number of glyph subroutines. */
/* */
/* <Return> */
/* The bias value. */
static FT_Int
- cff_compute_bias( FT_UInt num_subrs )
+ cff_compute_bias( FT_Int in_charstring_type,
+ FT_UInt num_subrs )
{
FT_Int result;
- if ( num_subrs < 1240 )
+ if ( in_charstring_type == 1 )
+ result = 0;
+ else if ( num_subrs < 1240 )
result = 107;
else if ( num_subrs < 33900U )
result = 1131;
@@ -380,9 +393,12 @@
cff_builder_init( &decoder->builder, face, size, slot, hinting );
/* initialize Type2 decoder */
+ decoder->cff = cff;
decoder->num_globals = cff->num_global_subrs;
decoder->globals = cff->global_subrs;
- decoder->globals_bias = cff_compute_bias( decoder->num_globals );
+ decoder->globals_bias = cff_compute_bias(
+ cff->top_font.font_dict.charstring_type,
+ decoder->num_globals );
decoder->hint_mode = hint_mode;
}
@@ -434,7 +450,9 @@
decoder->num_locals = sub->num_local_subrs;
decoder->locals = sub->local_subrs;
- decoder->locals_bias = cff_compute_bias( decoder->num_locals );
+ decoder->locals_bias = cff_compute_bias(
+ decoder->cff->top_font.font_dict.charstring_type,
+ decoder->num_locals );
decoder->glyph_width = sub->private_dict.default_width;
decoder->nominal_width = sub->private_dict.nominal_width;
@@ -677,7 +695,7 @@
data.length = length;
face->root.internal->incremental_interface->funcs->free_glyph_data(
- face->root.internal->incremental_interface->object,&data );
+ face->root.internal->incremental_interface->object, &data );
}
else
#endif /* FT_CONFIG_OPTION_INCREMENTAL */
@@ -693,6 +711,7 @@
static FT_Error
cff_operator_seac( CFF_Decoder* decoder,
+ FT_Pos asb,
FT_Pos adx,
FT_Pos ady,
FT_Int bchar,
@@ -705,6 +724,7 @@
FT_Vector left_bearing, advance;
FT_Byte* charstring;
FT_ULong charstring_len;
+ FT_Pos glyph_width;
if ( decoder->seac )
@@ -713,6 +733,9 @@
return CFF_Err_Syntax_Error;
}
+ adx += decoder->builder.left_bearing.x;
+ ady += decoder->builder.left_bearing.y;
+
#ifdef FT_CONFIG_OPTION_INCREMENTAL
/* Incremental fonts don't necessarily have valid charsets. */
/* They use the character code, not the glyph index, in this case. */
@@ -795,16 +818,17 @@
cff_free_glyph_data( face, &charstring, charstring_len );
}
- /* Save the left bearing and width of the base character */
- /* as they will be erased by the next load. */
+ /* Save the left bearing, advance and glyph width of the base */
+ /* character as they will be erased by the next load. */
left_bearing = builder->left_bearing;
advance = builder->advance;
+ glyph_width = decoder->glyph_width;
builder->left_bearing.x = 0;
builder->left_bearing.y = 0;
- builder->pos_x = adx;
+ builder->pos_x = adx - asb;
builder->pos_y = ady;
/* Now load `achar' on top of the base outline. */
@@ -824,10 +848,11 @@
cff_free_glyph_data( face, &charstring, charstring_len );
}
- /* Restore the left side bearing and advance width */
- /* of the base character. */
+ /* Restore the left side bearing, advance and glyph width */
+ /* of the base character. */
builder->left_bearing = left_bearing;
builder->advance = advance;
+ decoder->glyph_width = glyph_width;
builder->pos_x = 0;
builder->pos_y = 0;
@@ -869,6 +894,8 @@
FT_Pos x, y;
FT_Fixed seed;
FT_Fixed* stack;
+ FT_Int charstring_type =
+ decoder->cff->top_font.font_dict.charstring_type;
T2_Hints_Funcs hinter;
@@ -958,7 +985,8 @@
( (FT_Int32)ip[2] << 8 ) |
ip[3];
ip += 4;
- shift = 0;
+ if ( charstring_type == 2 )
+ shift = 0;
}
if ( decoder->top - stack >= CFF_MAX_OPERANDS )
goto Stack_Overflow;
@@ -1032,6 +1060,12 @@
case 0:
op = cff_op_dotsection;
break;
+ case 1: /* this is actually the Type1 vstem3 operator */
+ op = cff_op_vstem;
+ break;
+ case 2: /* this is actually the Type1 hstem3 operator */
+ op = cff_op_hstem;
+ break;
case 3:
op = cff_op_and;
break;
@@ -1041,6 +1075,12 @@
case 5:
op = cff_op_not;
break;
+ case 6:
+ op = cff_op_seac;
+ break;
+ case 7:
+ op = cff_op_sbw;
+ break;
case 8:
op = cff_op_store;
break;
@@ -1104,6 +1144,9 @@
case 30:
op = cff_op_roll;
break;
+ case 33:
+ op = cff_op_setcurrentpoint;
+ break;
case 34:
op = cff_op_hflex;
break;
@@ -1171,7 +1214,7 @@
op = cff_op_hvcurveto;
break;
default:
- ;
+ break;
}
if ( op == cff_op_unknown )
@@ -1886,6 +1929,21 @@
}
break;
+ case cff_op_seac:
+ FT_TRACE4(( " seac\n" ));
+
+ error = cff_operator_seac( decoder,
+ args[0], args[1], args[2],
+ (FT_Int)( args[3] >> 16 ),
+ (FT_Int)( args[4] >> 16 ) );
+
+ /* add current outline to the glyph slot */
+ FT_GlyphLoader_Add( builder->loader );
+
+ /* return now! */
+ FT_TRACE4(( "\n" ));
+ return error;
+
case cff_op_endchar:
FT_TRACE4(( " endchar\n" ));
@@ -1895,10 +1953,8 @@
/* Save glyph width so that the subglyphs don't overwrite it. */
FT_Pos glyph_width = decoder->glyph_width;
-
error = cff_operator_seac( decoder,
- args[-4],
- args[-3],
+ 0L, args[-4], args[-3],
(FT_Int)( args[-2] >> 16 ),
(FT_Int)( args[-1] >> 16 ) );
@@ -2106,7 +2162,7 @@
FT_TRACE4(( " dup\n" ));
args[1] = args[0];
- args++;
+ args += 2;
break;
case cff_op_put:
@@ -2117,7 +2173,7 @@
FT_TRACE4(( " put\n" ));
- if ( idx >= 0 && idx < decoder->len_buildchar )
+ if ( idx >= 0 && idx < CFF_MAX_TRANS_ELEMENTS )
decoder->buildchar[idx] = val;
}
break;
@@ -2130,7 +2186,7 @@
FT_TRACE4(( " get\n" ));
- if ( idx >= 0 && idx < decoder->len_buildchar )
+ if ( idx >= 0 && idx < CFF_MAX_TRANS_ELEMENTS )
val = decoder->buildchar[idx];
args[0] = val;
@@ -2170,10 +2226,42 @@
FT_TRACE4(( " hsbw (invalid op)\n" ));
- decoder->glyph_width = decoder->nominal_width +
- (args[1] >> 16);
- x = args[0];
- y = 0;
+ decoder->glyph_width = decoder->nominal_width + ( args[1] >> 16 );
+
+ decoder->builder.left_bearing.x = args[0];
+ decoder->builder.left_bearing.y = 0;
+
+ x = decoder->builder.pos_x + args[0];
+ y = decoder->builder.pos_y;
+ args = stack;
+ break;
+
+ case cff_op_sbw:
+ /* this is an invalid Type 2 operator; however, there */
+ /* exist fonts which are incorrectly converted from probably */
+ /* Type 1 to CFF, and some parsers seem to accept it */
+
+ FT_TRACE4(( " sbw (invalid op)\n" ));
+
+ decoder->glyph_width = decoder->nominal_width + ( args[2] >> 16 );
+
+ decoder->builder.left_bearing.x = args[0];
+ decoder->builder.left_bearing.y = args[1];
+
+ x = decoder->builder.pos_x + args[0];
+ y = decoder->builder.pos_y + args[1];
+ args = stack;
+ break;
+
+ case cff_op_setcurrentpoint:
+ /* this is an invalid Type 2 operator; however, there */
+ /* exist fonts which are incorrectly converted from probably */
+ /* Type 1 to CFF, and some parsers seem to accept it */
+
+ FT_TRACE4(( " setcurrentpoint (invalid op)\n" ));
+
+ x = decoder->builder.pos_x + args[0];
+ y = decoder->builder.pos_y + args[1];
args = stack;
break;
@@ -2184,8 +2272,10 @@
FT_TRACE4(( " callothersubr (invalid op)\n" ));
- /* don't modify stack; handle the subr as `unknown' so that */
- /* following `pop' operands use the arguments on stack */
+ /* subsequent `pop' operands should add the arguments, */
+ /* this is the implementation described for `unknown' other */
+ /* subroutines in the Type1 spec. */
+ args -= 2 + ( args[-2] >> 16 );
break;
case cff_op_pop:
@@ -2674,23 +2764,25 @@
#ifdef FT_CONFIG_OPTION_INCREMENTAL
/* Incremental fonts can optionally override the metrics. */
- if ( !error &&
- face->root.internal->incremental_interface &&
+ if ( !error &&
+ face->root.internal->incremental_interface &&
face->root.internal->incremental_interface->funcs->get_glyph_metrics )
{
FT_Incremental_MetricsRec metrics;
metrics.bearing_x = decoder.builder.left_bearing.x;
- metrics.bearing_y = decoder.builder.left_bearing.y;
+ metrics.bearing_y = 0;
metrics.advance = decoder.builder.advance.x;
+ metrics.advance_v = decoder.builder.advance.y;
+
error = face->root.internal->incremental_interface->funcs->get_glyph_metrics(
face->root.internal->incremental_interface->object,
glyph_index, FALSE, &metrics );
+
decoder.builder.left_bearing.x = metrics.bearing_x;
- decoder.builder.left_bearing.y = metrics.bearing_y;
decoder.builder.advance.x = metrics.advance;
- decoder.builder.advance.y = 0;
+ decoder.builder.advance.y = metrics.advance_v;
}
#endif /* FT_CONFIG_OPTION_INCREMENTAL */
@@ -2827,9 +2919,12 @@
if ( has_vertical_info )
metrics->vertBearingX = metrics->horiBearingX -
metrics->horiAdvance / 2;
- else
- ft_synthesize_vertical_metrics( metrics,
- metrics->vertAdvance );
+ else
+ {
+ if ( load_flags & FT_LOAD_VERTICAL_LAYOUT )
+ ft_synthesize_vertical_metrics( metrics,
+ metrics->vertAdvance );
+ }
}
}
diff --git a/freetype/src/cff/cffgload.h b/freetype/src/cff/cffgload.h
index 956817a08..38937be5c 100644
--- a/freetype/src/cff/cffgload.h
+++ b/freetype/src/cff/cffgload.h
@@ -28,8 +28,9 @@
FT_BEGIN_HEADER
-#define CFF_MAX_OPERANDS 48
-#define CFF_MAX_SUBRS_CALLS 32
+#define CFF_MAX_OPERANDS 48
+#define CFF_MAX_SUBRS_CALLS 32
+#define CFF_MAX_TRANS_ELEMENTS 32
/*************************************************************************/
@@ -137,8 +138,7 @@ FT_BEGIN_HEADER
FT_Bool read_width;
FT_Bool width_only;
FT_Int num_hints;
- FT_Fixed* buildchar;
- FT_Int len_buildchar;
+ FT_Fixed buildchar[CFF_MAX_TRANS_ELEMENTS];
FT_UInt num_locals;
FT_UInt num_globals;
diff --git a/freetype/src/cff/cffobjs.c b/freetype/src/cff/cffobjs.c
index e0966e0d3..bd56c4ba1 100644
--- a/freetype/src/cff/cffobjs.c
+++ b/freetype/src/cff/cffobjs.c
@@ -657,10 +657,11 @@
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;
- cffface->bbox.xMax = ( dict->font_bbox.xMax + 0xFFFFU ) >> 16;
- cffface->bbox.yMax = ( dict->font_bbox.yMax + 0xFFFFU ) >> 16;
+ 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 );
diff --git a/freetype/src/cff/cffparse.c b/freetype/src/cff/cffparse.c
index 947ec9d34..01266a193 100644
--- a/freetype/src/cff/cffparse.c
+++ b/freetype/src/cff/cffparse.c
@@ -745,8 +745,10 @@
p++;
for (;;)
{
+ /* An unterminated floating point number at the */
+ /* end of a dictionary is invalid but harmless. */
if ( p >= limit )
- goto Syntax_Error;
+ goto Exit;
v = p[0] >> 4;
if ( v == 15 )
break;
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-29 04:21:18 +0000