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src/java.desktop/share/native/libfreetype/src/cid/cidload.c
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@@ -1,42 +1,43 @@
-/***************************************************************************/
-/* */
-/* cidload.c */
-/* */
-/* CID-keyed Type1 font loader (body). */
-/* */
-/* Copyright 1996-2018 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. */
-/* */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cidload.c
+ *
+ * CID-keyed Type1 font loader (body).
+ *
+ * Copyright (C) 1996-2019 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_CONFIG_CONFIG_H
#include FT_MULTIPLE_MASTERS_H
#include FT_INTERNAL_TYPE1_TYPES_H
+#include FT_INTERNAL_POSTSCRIPT_AUX_H
#include "cidload.h"
#include "ciderrs.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. */
- /* */
+ /**************************************************************************
+ *
+ * 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_cidload
+#define FT_COMPONENT cidload
/* read a single offset */
FT_LOCAL_DEF( FT_ULong )
cid_get_offset( FT_Byte* *start,
@@ -79,10 +80,12 @@
/* if the keyword has a dedicated callback, call it */
if ( keyword->type == T1_FIELD_TYPE_CALLBACK )
{
+ FT_TRACE4(( " %s", keyword->ident ));
+
keyword->reader( (FT_Face)face, parser );
error = parser->root.error;
goto Exit;
}
@@ -129,26 +132,31 @@
object = (FT_Byte*)dict;
}
}
}
+ FT_TRACE4(( " %s", keyword->ident ));
+
dummy_object = object;
/* now, load the keyword data in the object's field(s) */
if ( keyword->type == T1_FIELD_TYPE_INTEGER_ARRAY ||
keyword->type == T1_FIELD_TYPE_FIXED_ARRAY )
error = cid_parser_load_field_table( &loader->parser, keyword,
&dummy_object );
else
error = cid_parser_load_field( &loader->parser,
keyword, &dummy_object );
+
+ FT_TRACE4(( "\n" ));
+
Exit:
return error;
}
- FT_CALLBACK_DEF( FT_Error )
+ FT_CALLBACK_DEF( void )
cid_parse_font_matrix( CID_Face face,
CID_Parser* parser )
{
CID_FaceDict dict;
FT_Face root = (FT_Face)&face->root;
@@ -169,18 +177,29 @@
/* input is scaled by 1000 to accommodate default FontMatrix */
result = cid_parser_to_fixed_array( parser, 6, temp, 3 );
if ( result < 6 )
- return FT_THROW( Invalid_File_Format );
+ {
+ FT_ERROR(( "cid_parse_font_matrix: not enough matrix elements\n" ));
+ goto Exit;
+ }
+
+ FT_TRACE4(( " [%f %f %f %f %f %f]\n",
+ (double)temp[0] / 65536 / 1000,
+ (double)temp[1] / 65536 / 1000,
+ (double)temp[2] / 65536 / 1000,
+ (double)temp[3] / 65536 / 1000,
+ (double)temp[4] / 65536 / 1000,
+ (double)temp[5] / 65536 / 1000 ));
temp_scale = FT_ABS( temp[3] );
if ( temp_scale == 0 )
{
FT_ERROR(( "cid_parse_font_matrix: invalid font matrix\n" ));
- return FT_THROW( Invalid_File_Format );
+ goto Exit;
}
/* atypical case */
if ( temp_scale != 0x10000L )
{
@@ -198,20 +217,28 @@
matrix->xx = temp[0];
matrix->yx = temp[1];
matrix->xy = temp[2];
matrix->yy = temp[3];
+ if ( !FT_Matrix_Check( matrix ) )
+ {
+ FT_ERROR(( "t1_parse_font_matrix: invalid font matrix\n" ));
+ parser->root.error = FT_THROW( Invalid_File_Format );
+ goto Exit;
+ }
+
/* note that the font offsets are expressed in integer font units */
offset->x = temp[4] >> 16;
offset->y = temp[5] >> 16;
}
- return FT_Err_Ok;
+ Exit:
+ return;
}
- FT_CALLBACK_DEF( FT_Error )
+ FT_CALLBACK_DEF( void )
parse_fd_array( CID_Face face,
CID_Parser* parser )
{
CID_FaceInfo cid = &face->cid;
FT_Memory memory = face->root.memory;
@@ -222,14 +249,15 @@
num_dicts = cid_parser_to_int( parser );
if ( num_dicts < 0 )
{
FT_ERROR(( "parse_fd_array: invalid number of dictionaries\n" ));
- error = FT_THROW( Invalid_File_Format );
goto Exit;
}
+ FT_TRACE4(( " %d\n", num_dicts ));
+
/*
* A single entry in the FDArray must (at least) contain the following
* structure elements.
*
* %ADOBeginFontDict 18
@@ -261,31 +289,35 @@
if ( FT_NEW_ARRAY( cid->font_dicts, num_dicts ) )
goto Exit;
cid->num_dicts = num_dicts;
- /* don't forget to set a few defaults */
+ /* set some default values (the same as for Type 1 fonts) */
for ( n = 0; n < cid->num_dicts; n++ )
{
CID_FaceDict dict = cid->font_dicts + n;
- /* default value for lenIV */
+ dict->private_dict.blue_shift = 7;
+ dict->private_dict.blue_fuzz = 1;
dict->private_dict.lenIV = 4;
+ dict->private_dict.expansion_factor = (FT_Fixed)( 0.06 * 0x10000L );
+ dict->private_dict.blue_scale = (FT_Fixed)(
+ 0.039625 * 0x10000L * 1000 );
}
}
Exit:
- return error;
+ return;
}
- /* by mistake, `expansion_factor' appears both in PS_PrivateRec */
+ /* By mistake, `expansion_factor' appears both in PS_PrivateRec */
/* and CID_FaceDictRec (both are public header files and can't */
- /* changed); we simply copy the value */
+ /* changed). We simply copy the value. */
- FT_CALLBACK_DEF( FT_Error )
+ FT_CALLBACK_DEF( void )
parse_expansion_factor( CID_Face face,
CID_Parser* parser )
{
CID_FaceDict dict;
@@ -294,13 +326,47 @@
{
dict = face->cid.font_dicts + parser->num_dict;
dict->expansion_factor = cid_parser_to_fixed( parser, 0 );
dict->private_dict.expansion_factor = dict->expansion_factor;
+
+ FT_TRACE4(( "%d\n", dict->expansion_factor ));
}
- return FT_Err_Ok;
+ return;
+ }
+
+
+ /* By mistake, `CID_FaceDictRec' doesn't contain a field for the */
+ /* `FontName' keyword. FreeType doesn't need it, but it is nice */
+ /* to catch it for producing better trace output. */
+
+ FT_CALLBACK_DEF( void )
+ parse_font_name( CID_Face face,
+ CID_Parser* parser )
+ {
+#ifdef FT_DEBUG_LEVEL_TRACE
+ if ( parser->num_dict >= 0 && parser->num_dict < face->cid.num_dicts )
+ {
+ T1_TokenRec token;
+ FT_UInt len;
+
+
+ cid_parser_to_token( parser, &token );
+
+ len = (FT_UInt)( token.limit - token.start );
+ if ( len )
+ FT_TRACE4(( " %.*s\n", len, token.start ));
+ else
+ FT_TRACE4(( " <no value>\n" ));
+ }
+#else
+ FT_UNUSED( face );
+ FT_UNUSED( parser );
+#endif
+
+ return;
}
static
const T1_FieldRec cid_field_records[] =
@@ -309,10 +375,11 @@
#include "cidtoken.h"
T1_FIELD_CALLBACK( "FDArray", parse_fd_array, 0 )
T1_FIELD_CALLBACK( "FontMatrix", cid_parse_font_matrix, 0 )
T1_FIELD_CALLBACK( "ExpansionFactor", parse_expansion_factor, 0 )
+ T1_FIELD_CALLBACK( "FontName", parse_font_name, 0 )
{ 0, T1_FIELD_LOCATION_CID_INFO, T1_FIELD_TYPE_NONE, 0, 0, 0, 0, 0, 0 }
};
@@ -354,11 +421,20 @@
ft_strncmp( (char*)cur, "%ADOBeginFontDict", 17 ) == 0 )
{
/* if /FDArray was found, then cid->num_dicts is > 0, and */
/* we can start increasing parser->num_dict */
if ( face->cid.num_dicts > 0 )
+ {
parser->num_dict++;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ FT_TRACE4(( " FontDict %d", parser->num_dict ));
+ if ( parser->num_dict > face->cid.num_dicts )
+ FT_TRACE4(( " (ignored)" ));
+ FT_TRACE4(( "\n" ));
+#endif
+ }
}
}
cur = parser->root.cursor;
/* no error can occur in cid_parser_skip_spaces */
@@ -755,20 +831,20 @@
/* sanity tests */
if ( cid->fd_bytes < 0 || cid->gd_bytes < 1 )
{
- FT_ERROR(( "cid_parse_dict:"
+ FT_ERROR(( "cid_face_open:"
" Invalid `FDBytes' or `GDBytes' value\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
/* allow at most 32bit offsets */
if ( cid->fd_bytes > 4 || cid->gd_bytes > 4 )
{
- FT_ERROR(( "cid_parse_dict:"
+ FT_ERROR(( "cid_face_open:"
" Values of `FDBytes' or `GDBytes' larger than 4\n"
" "
" are not supported\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
@@ -780,58 +856,77 @@
for ( n = 0; n < cid->num_dicts; n++ )
{
CID_FaceDict dict = cid->font_dicts + n;
+ /* the upper limits are ad-hoc values */
+ if ( dict->private_dict.blue_shift > 1000 ||
+ dict->private_dict.blue_shift < 0 )
+ {
+ FT_TRACE2(( "cid_face_open:"
+ " setting unlikely BlueShift value %d to default (7)\n",
+ dict->private_dict.blue_shift ));
+ dict->private_dict.blue_shift = 7;
+ }
+
+ if ( dict->private_dict.blue_fuzz > 1000 ||
+ dict->private_dict.blue_fuzz < 0 )
+ {
+ FT_TRACE2(( "cid_face_open:"
+ " setting unlikely BlueFuzz value %d to default (1)\n",
+ dict->private_dict.blue_fuzz ));
+ dict->private_dict.blue_fuzz = 1;
+ }
+
if ( dict->sd_bytes < 0 ||
( dict->num_subrs && dict->sd_bytes < 1 ) )
{
- FT_ERROR(( "cid_parse_dict: Invalid `SDBytes' value\n" ));
+ FT_ERROR(( "cid_face_open: Invalid `SDBytes' value\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
if ( dict->sd_bytes > 4 )
{
- FT_ERROR(( "cid_parse_dict:"
+ FT_ERROR(( "cid_face_open:"
" Values of `SDBytes' larger than 4"
" are not supported\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
if ( dict->subrmap_offset > binary_length )
{
- FT_ERROR(( "cid_parse_dict: Invalid `SubrMapOffset' value\n" ));
+ FT_ERROR(( "cid_face_open: Invalid `SubrMapOffset' value\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
/* `num_subrs' is scanned as a signed integer */
if ( (FT_Int)dict->num_subrs < 0 ||
( dict->sd_bytes &&
dict->num_subrs > ( binary_length - dict->subrmap_offset ) /
(FT_UInt)dict->sd_bytes ) )
{
- FT_ERROR(( "cid_parse_dict: Invalid `SubrCount' value\n" ));
+ FT_ERROR(( "cid_face_open: Invalid `SubrCount' value\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
}
if ( cid->cidmap_offset > binary_length )
{
- FT_ERROR(( "cid_parse_dict: Invalid `CIDMapOffset' value\n" ));
+ FT_ERROR(( "cid_face_open: Invalid `CIDMapOffset' value\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
if ( entry_len &&
cid->cid_count >
( binary_length - cid->cidmap_offset ) / entry_len )
{
- FT_ERROR(( "cid_parse_dict: Invalid `CIDCount' value\n" ));
+ FT_ERROR(( "cid_face_open: Invalid `CIDCount' value\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
/* we can now safely proceed */
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