summaryrefslogtreecommitdiff
path: root/src/freetype2/type1/t1load.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/freetype2/type1/t1load.c')
-rw-r--r--src/freetype2/type1/t1load.c134
1 files changed, 72 insertions, 62 deletions
diff --git a/src/freetype2/type1/t1load.c b/src/freetype2/type1/t1load.c
index 55177ee..d867e94 100644
--- a/src/freetype2/type1/t1load.c
+++ b/src/freetype2/type1/t1load.c
@@ -4,7 +4,7 @@
/* */
/* Type 1 font loader (body). */
/* */
-/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007 by */
+/* Copyright 1996-2001, 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, */
@@ -65,6 +65,7 @@
#include FT_CONFIG_CONFIG_H
#include FT_MULTIPLE_MASTERS_H
#include FT_INTERNAL_TYPE1_TYPES_H
+#include FT_INTERNAL_CALC_H
#include "t1load.h"
#include "t1errors.h"
@@ -213,10 +214,6 @@
}
-#define FT_INT_TO_FIXED( a ) ( (a) << 16 )
-#define FT_FIXED_TO_INT( a ) ( FT_RoundFix( a ) >> 16 )
-
-
/*************************************************************************/
/* */
/* Given a normalized (blend) coordinate, figure out the design */
@@ -230,7 +227,7 @@
if ( ncv <= axismap->blend_points[0] )
- return axismap->design_points[0];
+ return INT_TO_FIXED( axismap->design_points[0] );
for ( j = 1; j < axismap->num_points; ++j )
{
@@ -241,8 +238,7 @@
axismap->blend_points[j] -
axismap->blend_points[j - 1] );
-
- return axismap->design_points[j - 1] +
+ return INT_TO_FIXED( axismap->design_points[j - 1] ) +
FT_MulDiv( t,
axismap->design_points[j] -
axismap->design_points[j - 1],
@@ -250,7 +246,7 @@
}
}
- return axismap->design_points[axismap->num_points - 1];
+ return INT_TO_FIXED( axismap->design_points[axismap->num_points - 1] );
}
@@ -332,13 +328,13 @@
for ( i = 0 ; i < mmaster.num_axis; ++i )
{
mmvar->axis[i].name = mmaster.axis[i].name;
- mmvar->axis[i].minimum = FT_INT_TO_FIXED( mmaster.axis[i].minimum);
- mmvar->axis[i].maximum = FT_INT_TO_FIXED( mmaster.axis[i].maximum);
+ mmvar->axis[i].minimum = INT_TO_FIXED( mmaster.axis[i].minimum);
+ mmvar->axis[i].maximum = INT_TO_FIXED( mmaster.axis[i].maximum);
mmvar->axis[i].def = ( mmvar->axis[i].minimum +
mmvar->axis[i].maximum ) / 2;
/* Does not apply. But this value is in range */
- mmvar->axis[i].strid = 0xFFFFFFFFUL; /* Does not apply */
- mmvar->axis[i].tag = 0xFFFFFFFFUL; /* Does not apply */
+ mmvar->axis[i].strid = (FT_UInt)-1; /* Does not apply */
+ mmvar->axis[i].tag = (FT_ULong)-1; /* Does not apply */
if ( ft_strcmp( mmvar->axis[i].name, "Weight" ) == 0 )
mmvar->axis[i].tag = FT_MAKE_TAG( 'w', 'g', 'h', 't' );
@@ -348,16 +344,15 @@
mmvar->axis[i].tag = FT_MAKE_TAG( 'o', 'p', 's', 'z' );
}
- if ( blend->num_designs == 1U << blend->num_axis )
+ if ( blend->num_designs == ( 1U << blend->num_axis ) )
{
mm_weights_unmap( blend->default_weight_vector,
axiscoords,
blend->num_axis );
for ( i = 0; i < mmaster.num_axis; ++i )
- mmvar->axis[i].def =
- FT_INT_TO_FIXED( mm_axis_unmap( &blend->design_map[i],
- axiscoords[i] ) );
+ mmvar->axis[i].def = mm_axis_unmap( &blend->design_map[i],
+ axiscoords[i] );
}
*master = mmvar;
@@ -504,7 +499,7 @@
if ( num_coords <= 4 && num_coords > 0 )
{
for ( i = 0; i < num_coords; ++i )
- lcoords[i] = FT_FIXED_TO_INT( coords[i] );
+ lcoords[i] = FIXED_TO_INT( coords[i] );
error = T1_Set_MM_Design( face, num_coords, lcoords );
}
@@ -656,8 +651,8 @@
}
if ( num_designs == 0 || num_designs > T1_MAX_MM_DESIGNS )
{
- FT_ERROR(( "parse_blend_design_positions:" ));
- FT_ERROR(( " incorrect number of designs: %d\n",
+ FT_ERROR(( "parse_blend_design_positions:"
+ " incorrect number of designs: %d\n",
num_designs ));
error = T1_Err_Invalid_File_Format;
goto Exit;
@@ -674,7 +669,7 @@
for ( n = 0; n < num_designs; n++ )
{
- T1_TokenRec axis_tokens[T1_MAX_MM_DESIGNS];
+ T1_TokenRec axis_tokens[T1_MAX_MM_AXIS];
T1_Token token;
FT_Int axis, n_axis;
@@ -687,6 +682,15 @@
if ( n == 0 )
{
+ if ( n_axis <= 0 || n_axis > T1_MAX_MM_AXIS )
+ {
+ FT_ERROR(( "parse_blend_design_positions:"
+ " invalid number of axes: %d\n",
+ n_axis ));
+ error = T1_Err_Invalid_File_Format;
+ goto Exit;
+ }
+
num_axis = n_axis;
error = t1_allocate_blend( face, num_designs, num_axis );
if ( error )
@@ -835,8 +839,8 @@
}
if ( num_designs == 0 || num_designs > T1_MAX_MM_DESIGNS )
{
- FT_ERROR(( "parse_weight_vector:" ));
- FT_ERROR(( " incorrect number of designs: %d\n",
+ FT_ERROR(( "parse_weight_vector:"
+ " incorrect number of designs: %d\n",
num_designs ));
error = T1_Err_Invalid_File_Format;
goto Exit;
@@ -852,9 +856,9 @@
else if ( blend->num_designs != (FT_UInt)num_designs )
{
FT_ERROR(( "parse_weight_vector:"
- " /BlendDesignPosition and /WeightVector have\n" ));
- FT_ERROR(( " "
- " different number of elements!\n" ));
+ " /BlendDesignPosition and /WeightVector have\n"
+ " "
+ " different number of elements\n" ));
error = T1_Err_Invalid_File_Format;
goto Exit;
}
@@ -941,6 +945,12 @@
}
break;
+ case T1_FIELD_LOCATION_FONT_EXTRA:
+ dummy_object = &face->type1.font_extra;
+ objects = &dummy_object;
+ max_objects = 0;
+ break;
+
case T1_FIELD_LOCATION_PRIVATE:
dummy_object = &face->type1.private_dict;
objects = &dummy_object;
@@ -1130,7 +1140,7 @@
cur = parser->root.cursor;
if ( cur >= limit )
{
- FT_ERROR(( "parse_encoding: out of bounds!\n" ));
+ FT_ERROR(( "parse_encoding: out of bounds\n" ));
parser->root.error = T1_Err_Invalid_File_Format;
return;
}
@@ -1265,6 +1275,19 @@
n++;
}
+ else if ( only_immediates )
+ {
+ /* Since the current position is not updated for */
+ /* immediates-only mode we would get an infinite loop if */
+ /* we don't do anything here. */
+ /* */
+ /* This encoding array is not valid according to the type1 */
+ /* specification (it might be an encoding for a CID type1 */
+ /* font, however), so we conclude that this font is NOT a */
+ /* type1 font. */
+ parser->root.error = FT_Err_Unknown_File_Format;
+ return;
+ }
}
else
{
@@ -1310,9 +1333,9 @@
PS_Table table = &loader->subrs;
FT_Memory memory = parser->root.memory;
FT_Error error;
- FT_Int n, num_subrs;
+ FT_Int num_subrs;
- PSAux_Service psaux = (PSAux_Service)face->psaux;
+ PSAux_Service psaux = (PSAux_Service)face->psaux;
T1_Skip_Spaces( parser );
@@ -1346,18 +1369,17 @@
goto Fail;
}
- /* the format is simple: */
- /* */
- /* `index' + binary data */
- /* */
- for ( n = 0; n < num_subrs; n++ )
+ /* the format is simple: */
+ /* */
+ /* `index' + binary data */
+ /* */
+ for (;;)
{
FT_Long idx, size;
FT_Byte* base;
- /* If the next token isn't `dup', we are also done. This */
- /* happens when there are `holes' in the Subrs array. */
+ /* If the next token isn't `dup' we are done. */
if ( ft_strncmp( (char*)parser->root.cursor, "dup", 3 ) != 0 )
break;
@@ -1397,7 +1419,10 @@
FT_Byte* temp;
- if ( size <= face->type1.private_dict.lenIV )
+ /* some fonts define empty subr records -- this is not totally */
+ /* compliant to the specification (which says they should at */
+ /* least contain a `return'), but we support them anyway */
+ if ( size < face->type1.private_dict.lenIV )
{
error = T1_Err_Invalid_File_Format;
goto Fail;
@@ -1603,15 +1628,11 @@
}
}
- if ( loader->num_glyphs )
- return;
- else
- loader->num_glyphs = n;
+ loader->num_glyphs = n;
/* if /.notdef is found but does not occupy index 0, do our magic. */
- if ( ft_strcmp( (const char*)".notdef",
- (const char*)name_table->elements[0] ) &&
- notdef_found )
+ if ( notdef_found &&
+ ft_strcmp( ".notdef", (const char*)name_table->elements[0] ) )
{
/* Swap glyph in index 0 with /.notdef glyph. First, add index 0 */
/* name and code entries to swap_table. Then place notdef_index */
@@ -1680,7 +1701,7 @@
/* and add our own /.notdef glyph to index 0. */
/* 0 333 hsbw endchar */
- FT_Byte notdef_glyph[] = {0x8B, 0xF7, 0xE1, 0x0D, 0x0E};
+ FT_Byte notdef_glyph[] = { 0x8B, 0xF7, 0xE1, 0x0D, 0x0E };
char* notdef_name = (char *)".notdef";
@@ -1718,7 +1739,7 @@
goto Fail;
/* we added a glyph. */
- loader->num_glyphs = n + 1;
+ loader->num_glyphs += 1;
}
return;
@@ -2132,7 +2153,7 @@
#endif
if ( !loader.charstrings.init )
{
- FT_ERROR(( "T1_Open_Face: no `/CharStrings' array in face!\n" ));
+ FT_ERROR(( "T1_Open_Face: no `/CharStrings' array in face\n" ));
error = T1_Err_Invalid_File_Format;
}
@@ -2161,8 +2182,8 @@
/* the index is then stored in type1.encoding.char_index, and */
/* a the name to type1.encoding.char_name */
- min_char = +32000;
- max_char = -32000;
+ min_char = 0;
+ max_char = 0;
charcode = 0;
for ( ; charcode < loader.encoding_table.max_elems; charcode++ )
@@ -2188,25 +2209,14 @@
{
if ( charcode < min_char )
min_char = charcode;
- if ( charcode > max_char )
- max_char = charcode;
+ if ( charcode >= max_char )
+ max_char = charcode + 1;
}
break;
}
}
}
- /*
- * Yes, this happens: Certain PDF-embedded fonts have only a
- * `.notdef' glyph defined!
- */
-
- if ( min_char > max_char )
- {
- min_char = 0;
- max_char = loader.encoding_table.max_elems;
- }
-
type1->encoding.code_first = min_char;
type1->encoding.code_last = max_char;
type1->encoding.num_chars = loader.num_chars;
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-01 19:25:58 +0000