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-rw-r--r--src/3rdparty/freetype/src/type1/t1load.c192
1 files changed, 119 insertions, 73 deletions
diff --git a/src/3rdparty/freetype/src/type1/t1load.c b/src/3rdparty/freetype/src/type1/t1load.c
index 5cffdfaac4..5a1afd8d9f 100644
--- a/src/3rdparty/freetype/src/type1/t1load.c
+++ b/src/3rdparty/freetype/src/type1/t1load.c
@@ -4,7 +4,7 @@
*
* Type 1 font loader (body).
*
- * Copyright (C) 1996-2019 by
+ * Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -61,12 +61,12 @@
#include <ft2build.h>
-#include FT_INTERNAL_DEBUG_H
+#include <freetype/internal/ftdebug.h>
#include FT_CONFIG_CONFIG_H
-#include FT_MULTIPLE_MASTERS_H
-#include FT_INTERNAL_TYPE1_TYPES_H
-#include FT_INTERNAL_CALC_H
-#include FT_INTERNAL_HASH_H
+#include <freetype/ftmm.h>
+#include <freetype/internal/t1types.h>
+#include <freetype/internal/ftcalc.h>
+#include <freetype/internal/fthash.h>
#include "t1load.h"
#include "t1errors.h"
@@ -117,6 +117,9 @@
goto Exit;
blend->num_default_design_vector = 0;
+ blend->weight_vector = NULL;
+ blend->default_weight_vector = NULL;
+ blend->design_pos[0] = NULL;
face->blend = blend;
}
@@ -130,14 +133,11 @@
/* allocate the blend `private' and `font_info' dictionaries */
- if ( FT_NEW_ARRAY( blend->font_infos[1], num_designs ) ||
- FT_NEW_ARRAY( blend->privates [1], num_designs ) ||
- FT_NEW_ARRAY( blend->bboxes [1], num_designs ) ||
- FT_NEW_ARRAY( blend->weight_vector, num_designs * 2 ) )
+ if ( FT_NEW_ARRAY( blend->font_infos[1], num_designs ) ||
+ FT_NEW_ARRAY( blend->privates [1], num_designs ) ||
+ FT_NEW_ARRAY( blend->bboxes [1], num_designs ) )
goto Exit;
- blend->default_weight_vector = blend->weight_vector + num_designs;
-
blend->font_infos[0] = &face->type1.font_info;
blend->privates [0] = &face->type1.private_dict;
blend->bboxes [0] = &face->type1.font_bbox;
@@ -164,21 +164,6 @@
blend->num_axis = num_axis;
}
- /* allocate the blend design pos table if needed */
- num_designs = blend->num_designs;
- num_axis = blend->num_axis;
- if ( num_designs && num_axis && blend->design_pos[0] == 0 )
- {
- FT_UInt n;
-
-
- if ( FT_NEW_ARRAY( blend->design_pos[0], num_designs * num_axis ) )
- goto Exit;
-
- for ( n = 1; n < num_designs; n++ )
- blend->design_pos[n] = blend->design_pos[0] + num_axis * n;
- }
-
Exit:
return error;
@@ -309,31 +294,55 @@
FT_UInt i;
FT_Fixed axiscoords[T1_MAX_MM_AXIS];
PS_Blend blend = face->blend;
+ FT_UShort* axis_flags;
+
+ FT_Offset mmvar_size;
+ FT_Offset axis_flags_size;
+ FT_Offset axis_size;
error = T1_Get_Multi_Master( face, &mmaster );
if ( error )
goto Exit;
- if ( FT_ALLOC( mmvar,
- sizeof ( FT_MM_Var ) +
- mmaster.num_axis * sizeof ( FT_Var_Axis ) ) )
+
+ /* the various `*_size' variables, which we also use as */
+ /* offsets into the `mmvar' array, must be multiples of the */
+ /* pointer size (except the last one); without such an */
+ /* alignment there might be runtime errors due to */
+ /* misaligned addresses */
+#undef ALIGN_SIZE
+#define ALIGN_SIZE( n ) \
+ ( ( (n) + sizeof (void*) - 1 ) & ~( sizeof (void*) - 1 ) )
+
+ mmvar_size = ALIGN_SIZE( sizeof ( FT_MM_Var ) );
+ axis_flags_size = ALIGN_SIZE( mmaster.num_axis *
+ sizeof ( FT_UShort ) );
+ axis_size = mmaster.num_axis * sizeof ( FT_Var_Axis );
+
+ if ( FT_ALLOC( mmvar, mmvar_size +
+ axis_flags_size +
+ axis_size ) )
goto Exit;
mmvar->num_axis = mmaster.num_axis;
mmvar->num_designs = mmaster.num_designs;
mmvar->num_namedstyles = 0; /* Not supported */
- mmvar->axis = (FT_Var_Axis*)&mmvar[1];
- /* Point to axes after MM_Var struct */
- mmvar->namedstyle = NULL;
+
+ /* while axis flags are meaningless here, we have to provide the array */
+ /* to make `FT_Get_Var_Axis_Flags' work: the function expects that the */
+ /* values directly follow the data of `FT_MM_Var' */
+ axis_flags = (FT_UShort*)( (char*)mmvar + mmvar_size );
+ for ( i = 0; i < mmaster.num_axis; i++ )
+ axis_flags[i] = 0;
+
+ mmvar->axis = (FT_Var_Axis*)( (char*)axis_flags + axis_flags_size );
+ mmvar->namedstyle = NULL;
for ( i = 0; i < mmaster.num_axis; i++ )
{
mmvar->axis[i].name = mmaster.axis[i].name;
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 = ~0U; /* Does not apply */
mmvar->axis[i].tag = ~0U; /* Does not apply */
@@ -346,6 +355,10 @@
mmvar->axis[i].tag = FT_MAKE_TAG( 'w', 'd', 't', 'h' );
else if ( ft_strcmp( mmvar->axis[i].name, "OpticalSize" ) == 0 )
mmvar->axis[i].tag = FT_MAKE_TAG( 'o', 'p', 's', 'z' );
+ else if ( ft_strcmp( mmvar->axis[i].name, "Slant" ) == 0 )
+ mmvar->axis[i].tag = FT_MAKE_TAG( 's', 'l', 'n', 't' );
+ else if ( ft_strcmp( mmvar->axis[i].name, "Italic" ) == 0 )
+ mmvar->axis[i].tag = FT_MAKE_TAG( 'i', 't', 'a', 'l' );
}
mm_weights_unmap( blend->default_weight_vector,
@@ -556,7 +569,7 @@
{
FT_Error error;
PS_Blend blend = face->blend;
- FT_UInt n, p;
+ FT_UInt n;
FT_Fixed final_blends[T1_MAX_MM_DESIGNS];
@@ -575,7 +588,7 @@
PS_DesignMap map = blend->design_map + n;
FT_Long* designs = map->design_points;
FT_Fixed* blends = map->blend_points;
- FT_Int before = -1, after = -1;
+ FT_Int p, before = -1, after = -1;
/* use a default value if we don't have a coordinate */
@@ -584,7 +597,7 @@
else
design = ( designs[map->num_points - 1] - designs[0] ) / 2;
- for ( p = 0; p < (FT_UInt)map->num_points; p++ )
+ for ( p = 0; p < (FT_Int)map->num_points; p++ )
{
FT_Long p_design = designs[p];
@@ -598,11 +611,11 @@
if ( design < p_design )
{
- after = (FT_Int)p;
+ after = p;
break;
}
- before = (FT_Int)p;
+ before = p;
}
/* now interpolate if necessary */
@@ -827,7 +840,7 @@
FT_FREE( name );
}
- if ( FT_ALLOC( blend->axis_names[n], len + 1 ) )
+ if ( FT_QALLOC( blend->axis_names[n], len + 1 ) )
goto Exit;
name = (FT_Byte*)blend->axis_names[n];
@@ -848,12 +861,14 @@
{
T1_TokenRec design_tokens[T1_MAX_MM_DESIGNS];
FT_Int num_designs;
- FT_Int num_axis;
- T1_Parser parser = &loader->parser;
+ FT_Int num_axis = 0; /* make compiler happy */
+ T1_Parser parser = &loader->parser;
+ FT_Memory memory = face->root.memory;
+ FT_Error error = FT_Err_Ok;
+ FT_Fixed* design_pos[T1_MAX_MM_DESIGNS];
- FT_Error error = FT_Err_Ok;
- PS_Blend blend;
+ design_pos[0] = NULL;
/* get the array of design tokens -- compute number of designs */
T1_ToTokenArray( parser, design_tokens,
@@ -875,12 +890,10 @@
{
FT_Byte* old_cursor = parser->root.cursor;
FT_Byte* old_limit = parser->root.limit;
- FT_Int n;
+ FT_Int n, nn;
+ PS_Blend blend;
- blend = face->blend;
- num_axis = 0; /* make compiler happy */
-
FT_TRACE4(( " [" ));
for ( n = 0; n < num_designs; n++ )
@@ -913,7 +926,13 @@
(FT_UInt)num_axis );
if ( error )
goto Exit;
- blend = face->blend;
+
+ /* allocate a blend design pos table */
+ if ( FT_QNEW_ARRAY( design_pos[0], num_designs * num_axis ) )
+ goto Exit;
+
+ for ( nn = 1; nn < num_designs; nn++ )
+ design_pos[nn] = design_pos[0] + num_axis * nn;
}
else if ( n_axis != num_axis )
{
@@ -931,8 +950,8 @@
parser->root.cursor = token2->start;
parser->root.limit = token2->limit;
- blend->design_pos[n][axis] = T1_ToFixed( parser, 0 );
- FT_TRACE4(( " %f", (double)blend->design_pos[n][axis] / 65536 ));
+ design_pos[n][axis] = T1_ToFixed( parser, 0 );
+ FT_TRACE4(( " %f", (double)design_pos[n][axis] / 65536 ));
}
FT_TRACE4(( "]" )) ;
}
@@ -941,9 +960,21 @@
loader->parser.root.cursor = old_cursor;
loader->parser.root.limit = old_limit;
+
+ /* a valid BlendDesignPosition has been parsed */
+ blend = face->blend;
+ if ( blend->design_pos[0] )
+ FT_FREE( blend->design_pos[0] );
+
+ for ( n = 0; n < num_designs; n++ )
+ {
+ blend->design_pos[n] = design_pos[n];
+ design_pos[n] = NULL;
+ }
}
Exit:
+ FT_FREE( design_pos[0] );
loader->parser.root.error = error;
}
@@ -1020,7 +1051,7 @@
}
/* allocate design map data */
- if ( FT_NEW_ARRAY( map->design_points, num_points * 2 ) )
+ if ( FT_QNEW_ARRAY( map->design_points, num_points * 2 ) )
goto Exit;
map->blend_points = map->design_points + num_points;
map->num_points = (FT_Byte)num_points;
@@ -1039,7 +1070,7 @@
map->design_points[p] = T1_ToInt( parser );
map->blend_points [p] = T1_ToFixed( parser, 0 );
- FT_TRACE4(( " [%d %f]",
+ FT_TRACE4(( " [%ld %f]",
map->design_points[p],
(double)map->blend_points[p] / 65536 ));
}
@@ -1064,6 +1095,7 @@
T1_TokenRec design_tokens[T1_MAX_MM_DESIGNS];
FT_Int num_designs;
FT_Error error = FT_Err_Ok;
+ FT_Memory memory = face->root.memory;
T1_Parser parser = &loader->parser;
PS_Blend blend = face->blend;
T1_Token token;
@@ -1098,13 +1130,19 @@
else if ( blend->num_designs != (FT_UInt)num_designs )
{
FT_ERROR(( "parse_weight_vector:"
- " /BlendDesignPosition and /WeightVector have\n"
- " "
+ " /BlendDesignPosition and /WeightVector have\n" ));
+ FT_ERROR(( " "
" different number of elements\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
+ if ( !blend->weight_vector )
+ if ( FT_QNEW_ARRAY( blend->weight_vector, num_designs * 2 ) )
+ goto Exit;
+
+ blend->default_weight_vector = blend->weight_vector + num_designs;
+
old_cursor = parser->root.cursor;
old_limit = parser->root.limit;
@@ -1283,9 +1321,9 @@
else
{
FT_TRACE1(( "t1_load_keyword: ignoring keyword `%s'"
- " which is not valid at this point\n"
- " (probably due to missing keywords)\n",
+ " which is not valid at this point\n",
field->ident ));
+ FT_TRACE1(( " (probably due to missing keywords)\n" ));
error = FT_Err_Ok;
}
@@ -1496,8 +1534,8 @@
/* we use a T1_Table to store our charnames */
loader->num_chars = encode->num_chars = array_size;
- if ( FT_NEW_ARRAY( encode->char_index, array_size ) ||
- FT_NEW_ARRAY( encode->char_name, array_size ) ||
+ if ( FT_QNEW_ARRAY( encode->char_index, array_size ) ||
+ FT_QNEW_ARRAY( encode->char_name, array_size ) ||
FT_SET_ERROR( psaux->ps_table_funcs->init(
char_table, array_size, memory ) ) )
{
@@ -1731,14 +1769,14 @@
*/
FT_TRACE0(( "parse_subrs: adjusting number of subroutines"
- " (from %d to %d)\n",
+ " (from %d to %ld)\n",
num_subrs,
( parser->root.limit - parser->root.cursor ) >> 3 ));
num_subrs = ( parser->root.limit - parser->root.cursor ) >> 3;
if ( !loader->subrs_hash )
{
- if ( FT_NEW( loader->subrs_hash ) )
+ if ( FT_QNEW( loader->subrs_hash ) )
goto Fail;
error = ft_hash_num_init( loader->subrs_hash, memory );
@@ -1834,7 +1872,7 @@
}
/* t1_decrypt() shouldn't write to base -- make temporary copy */
- if ( FT_ALLOC( temp, size ) )
+ if ( FT_QALLOC( temp, size ) )
goto Fail;
FT_MEM_COPY( temp, base, size );
psaux->t1_decrypt( temp, size, 4330 );
@@ -1902,7 +1940,7 @@
if ( num_glyphs > ( limit - cur ) >> 3 )
{
FT_TRACE0(( "parse_charstrings: adjusting number of glyphs"
- " (from %d to %d)\n",
+ " (from %d to %ld)\n",
num_glyphs, ( limit - cur ) >> 3 ));
num_glyphs = ( limit - cur ) >> 3;
}
@@ -2023,9 +2061,9 @@
name_table->elements[n][len] = '\0';
/* record index of /.notdef */
- if ( *cur == '.' &&
+ if ( *cur == '.' &&
ft_strcmp( ".notdef",
- (const char*)(name_table->elements[n]) ) == 0 )
+ (const char*)( name_table->elements[n] ) ) == 0 )
{
notdef_index = n;
notdef_found = 1;
@@ -2044,7 +2082,7 @@
}
/* t1_decrypt() shouldn't write to base -- make temporary copy */
- if ( FT_ALLOC( temp, size ) )
+ if ( FT_QALLOC( temp, size ) )
goto Fail;
FT_MEM_COPY( temp, base, size );
psaux->t1_decrypt( temp, size, 4330 );
@@ -2297,8 +2335,8 @@
/* in valid Type 1 fonts we don't see `RD' or `-|' directly */
/* since those tokens are handled by parse_subrs and */
/* parse_charstrings */
- else if ( *cur == 'R' && cur + 6 < limit && *(cur + 1) == 'D' &&
- have_integer )
+ else if ( *cur == 'R' && cur + 6 < limit && *( cur + 1 ) == 'D' &&
+ have_integer )
{
FT_ULong s;
FT_Byte* b;
@@ -2310,8 +2348,8 @@
have_integer = 0;
}
- else if ( *cur == '-' && cur + 6 < limit && *(cur + 1) == '|' &&
- have_integer )
+ else if ( *cur == '-' && cur + 6 < limit && *( cur + 1 ) == '|' &&
+ have_integer )
{
FT_ULong s;
FT_Byte* b;
@@ -2554,7 +2592,15 @@
( !face->blend->num_designs || !face->blend->num_axis ) )
T1_Done_Blend( face );
- /* another safety check */
+ /* the font may have no valid WeightVector */
+ if ( face->blend && !face->blend->weight_vector )
+ T1_Done_Blend( face );
+
+ /* the font may have no valid BlendDesignPositions */
+ if ( face->blend && !face->blend->design_pos[0] )
+ T1_Done_Blend( face );
+
+ /* the font may have no valid BlendDesignMap */
if ( face->blend )
{
FT_UInt i;
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-27 07:44:30 +0000