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Diffstat (limited to 'src/3rdparty/freetype/src/sfnt/sfobjs.c')
-rw-r--r--src/3rdparty/freetype/src/sfnt/sfobjs.c215
1 files changed, 152 insertions, 63 deletions
diff --git a/src/3rdparty/freetype/src/sfnt/sfobjs.c b/src/3rdparty/freetype/src/sfnt/sfobjs.c
index 6edf3ae1de..f5d66ef840 100644
--- a/src/3rdparty/freetype/src/sfnt/sfobjs.c
+++ b/src/3rdparty/freetype/src/sfnt/sfobjs.c
@@ -4,7 +4,7 @@
*
* SFNT object management (base).
*
- * 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,
@@ -16,22 +16,22 @@
*/
-#include <ft2build.h>
#include "sfobjs.h"
#include "ttload.h"
#include "ttcmap.h"
#include "ttkern.h"
#include "sfwoff.h"
-#include FT_INTERNAL_SFNT_H
-#include FT_INTERNAL_DEBUG_H
-#include FT_TRUETYPE_IDS_H
-#include FT_TRUETYPE_TAGS_H
-#include FT_SERVICE_POSTSCRIPT_CMAPS_H
-#include FT_SFNT_NAMES_H
+#include "sfwoff2.h"
+#include <freetype/internal/sfnt.h>
+#include <freetype/internal/ftdebug.h>
+#include <freetype/ttnameid.h>
+#include <freetype/tttags.h>
+#include <freetype/internal/services/svpscmap.h>
+#include <freetype/ftsnames.h>
#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
-#include FT_SERVICE_MULTIPLE_MASTERS_H
-#include FT_SERVICE_METRICS_VARIATIONS_H
+#include <freetype/internal/services/svmm.h>
+#include <freetype/internal/services/svmetric.h>
#endif
#include "sferrors.h"
@@ -65,7 +65,7 @@
len = (FT_UInt)entry->stringLength / 2;
- if ( FT_NEW_ARRAY( string, len + 1 ) )
+ if ( FT_QNEW_ARRAY( string, len + 1 ) )
return NULL;
for ( n = 0; n < len; n++ )
@@ -100,7 +100,7 @@
len = (FT_UInt)entry->stringLength;
- if ( FT_NEW_ARRAY( string, len + 1 ) )
+ if ( FT_QNEW_ARRAY( string, len + 1 ) )
return NULL;
for ( n = 0; n < len; n++ )
@@ -341,7 +341,9 @@
/* synthesized into a TTC with one offset table. */
static FT_Error
sfnt_open_font( FT_Stream stream,
- TT_Face face )
+ TT_Face face,
+ FT_Int* face_instance_index,
+ FT_Long* woff2_num_faces )
{
FT_Memory memory = stream->memory;
FT_Error error;
@@ -358,17 +360,27 @@
FT_FRAME_END
};
+#ifndef FT_CONFIG_OPTION_USE_BROTLI
+ FT_UNUSED( face_instance_index );
+ FT_UNUSED( woff2_num_faces );
+#endif
+
face->ttc_header.tag = 0;
face->ttc_header.version = 0;
face->ttc_header.count = 0;
+#if defined( FT_CONFIG_OPTION_USE_ZLIB ) || \
+ defined( FT_CONFIG_OPTION_USE_BROTLI )
retry:
+#endif
+
offset = FT_STREAM_POS();
if ( FT_READ_ULONG( tag ) )
return error;
+#ifdef FT_CONFIG_OPTION_USE_ZLIB
if ( tag == TTAG_wOFF )
{
FT_TRACE2(( "sfnt_open_font: file is a WOFF; synthesizing SFNT\n" ));
@@ -384,6 +396,28 @@
stream = face->root.stream;
goto retry;
}
+#endif
+
+#ifdef FT_CONFIG_OPTION_USE_BROTLI
+ if ( tag == TTAG_wOF2 )
+ {
+ FT_TRACE2(( "sfnt_open_font: file is a WOFF2; synthesizing SFNT\n" ));
+
+ if ( FT_STREAM_SEEK( offset ) )
+ return error;
+
+ error = woff2_open_font( stream,
+ face,
+ face_instance_index,
+ woff2_num_faces );
+ if ( error )
+ return error;
+
+ /* Swap out stream and retry! */
+ stream = face->root.stream;
+ goto retry;
+ }
+#endif
if ( tag != 0x00010000UL &&
tag != TTAG_ttcf &&
@@ -425,7 +459,7 @@
return FT_THROW( Array_Too_Large );
/* now read the offsets of each font in the file */
- if ( FT_NEW_ARRAY( face->ttc_header.offsets, face->ttc_header.count ) )
+ if ( FT_QNEW_ARRAY( face->ttc_header.offsets, face->ttc_header.count ) )
return error;
if ( FT_FRAME_ENTER( face->ttc_header.count * 4L ) )
@@ -443,7 +477,7 @@
face->ttc_header.version = 1 << 16;
face->ttc_header.count = 1;
- if ( FT_NEW( face->ttc_header.offsets ) )
+ if ( FT_QNEW( face->ttc_header.offsets ) )
return error;
face->ttc_header.offsets[0] = offset;
@@ -461,9 +495,10 @@
FT_Parameter* params )
{
FT_Error error;
- FT_Library library = face->root.driver->root.library;
+ FT_Library library = face->root.driver->root.library;
SFNT_Service sfnt;
FT_Int face_index;
+ FT_Long woff2_num_faces = 0;
/* for now, parameters are unused */
@@ -499,36 +534,45 @@
0 );
}
- if ( !face->var )
+ if ( !face->tt_var )
{
/* we want the metrics variations interface */
/* from the `truetype' module only */
FT_Module tt_module = FT_Get_Module( library, "truetype" );
- face->var = ft_module_get_service( tt_module,
- FT_SERVICE_ID_METRICS_VARIATIONS,
- 0 );
+ face->tt_var = ft_module_get_service( tt_module,
+ FT_SERVICE_ID_METRICS_VARIATIONS,
+ 0 );
}
+
+ if ( !face->face_var )
+ face->face_var = ft_module_get_service(
+ &face->root.driver->root,
+ FT_SERVICE_ID_METRICS_VARIATIONS,
+ 0 );
#endif
FT_TRACE2(( "SFNT driver\n" ));
- error = sfnt_open_font( stream, face );
+ error = sfnt_open_font( stream,
+ face,
+ &face_instance_index,
+ &woff2_num_faces );
if ( error )
return error;
/* Stream may have changed in sfnt_open_font. */
stream = face->root.stream;
- FT_TRACE2(( "sfnt_init_face: %08p (index %d)\n",
- face,
+ FT_TRACE2(( "sfnt_init_face: %p (index %d)\n",
+ (void *)face,
face_instance_index ));
face_index = FT_ABS( face_instance_index ) & 0xFFFF;
/* value -(N+1) requests information on index N */
- if ( face_instance_index < 0 )
+ if ( face_instance_index < 0 && face_index > 0 )
face_index--;
if ( face_index >= face->ttc_header.count )
@@ -618,8 +662,8 @@
*/
if ( ( face->variation_support & TT_FACE_FLAG_VAR_FVAR ) &&
- !( FT_ALLOC( default_values, num_axes * 4 ) ||
- FT_ALLOC( instance_values, num_axes * 4 ) ) )
+ !( FT_QALLOC( default_values, num_axes * 4 ) ||
+ FT_QALLOC( instance_values, num_axes * 4 ) ) )
{
/* the current stream position is 16 bytes after the table start */
FT_ULong array_start = FT_STREAM_POS() - 16 + offset;
@@ -654,6 +698,9 @@
instance_offset += instance_size;
}
+ /* named instance indices start with value 1 */
+ face->var_default_named_instance = i + 1;
+
if ( i == num_instances )
{
/* no default instance in named instance table; */
@@ -689,6 +736,10 @@
face->root.num_faces = face->ttc_header.count;
face->root.face_index = face_instance_index;
+ /* `num_faces' for a WOFF2 needs to be handled separately. */
+ if ( woff2_num_faces )
+ face->root.num_faces = woff2_num_faces;
+
return error;
}
@@ -742,17 +793,23 @@
FT_Int num_params,
FT_Parameter* params )
{
- FT_Error error;
+ FT_Error error;
#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
- FT_Error psnames_error;
+ FT_Error psnames_error;
#endif
- FT_Bool has_outline;
- FT_Bool is_apple_sbit;
- FT_Bool is_apple_sbix;
- FT_Bool has_CBLC;
- FT_Bool has_CBDT;
- FT_Bool ignore_typographic_family = FALSE;
- FT_Bool ignore_typographic_subfamily = FALSE;
+
+ FT_Bool has_outline;
+ FT_Bool is_apple_sbit;
+
+ FT_Bool has_CBLC;
+ FT_Bool has_CBDT;
+ FT_Bool has_EBLC;
+ FT_Bool has_bloc;
+ FT_Bool has_sbix;
+
+ FT_Bool ignore_typographic_family = FALSE;
+ FT_Bool ignore_typographic_subfamily = FALSE;
+ FT_Bool ignore_sbix = FALSE;
SFNT_Service sfnt = (SFNT_Service)face->sfnt;
@@ -771,6 +828,8 @@
ignore_typographic_family = TRUE;
else if ( params[i].tag == FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY )
ignore_typographic_subfamily = TRUE;
+ else if ( params[i].tag == FT_PARAM_TAG_IGNORE_SBIX )
+ ignore_sbix = TRUE;
}
}
@@ -791,7 +850,8 @@
/* it doesn't contain outlines. */
/* */
- FT_TRACE2(( "sfnt_load_face: %08p\n\n", face ));
+ FT_TRACE2(( "sfnt_load_face: %p\n", (void *)face ));
+ FT_TRACE2(( "\n" ));
/* do we have outlines in there? */
#ifdef FT_CONFIG_OPTION_INCREMENTAL
@@ -805,14 +865,17 @@
tt_face_lookup_table( face, TTAG_CFF2 ) );
#endif
- is_apple_sbit = 0;
- is_apple_sbix = !face->goto_table( face, TTAG_sbix, stream, 0 );
+ /* check which sbit formats are present */
+ has_CBLC = !face->goto_table( face, TTAG_CBLC, stream, 0 );
+ has_CBDT = !face->goto_table( face, TTAG_CBDT, stream, 0 );
+ has_EBLC = !face->goto_table( face, TTAG_EBLC, stream, 0 );
+ has_bloc = !face->goto_table( face, TTAG_bloc, stream, 0 );
+ has_sbix = !face->goto_table( face, TTAG_sbix, stream, 0 );
- /* Apple 'sbix' color bitmaps are rendered scaled and then the 'glyf'
- * outline rendered on top. We don't support that yet, so just ignore
- * the 'glyf' outline and advertise it as a bitmap-only font. */
- if ( is_apple_sbix )
- has_outline = FALSE;
+ is_apple_sbit = FALSE;
+
+ if ( ignore_sbix )
+ has_sbix = FALSE;
/* if this font doesn't contain outlines, we try to load */
/* a `bhed' table */
@@ -824,16 +887,13 @@
/* load the font header (`head' table) if this isn't an Apple */
/* sbit font file */
- if ( !is_apple_sbit || is_apple_sbix )
+ if ( !is_apple_sbit || has_sbix )
{
LOAD_( head );
if ( error )
goto Exit;
}
- has_CBLC = !face->goto_table( face, TTAG_CBLC, stream, 0 );
- has_CBDT = !face->goto_table( face, TTAG_CBDT, stream, 0 );
-
/* Ignore outlines for CBLC/CBDT fonts. */
if ( has_CBLC || has_CBDT )
has_outline = FALSE;
@@ -943,7 +1003,11 @@
/* the optional tables */
/* embedded bitmap support */
- if ( sfnt->load_eblc )
+ /* TODO: Replace this clumsy check for all possible sbit tables */
+ /* with something better (for example, by passing a parameter */
+ /* to suppress 'sbix' loading). */
+ if ( sfnt->load_eblc &&
+ ( has_CBLC || has_EBLC || has_bloc || has_sbix ) )
LOAD_( eblc );
/* colored glyph support */
@@ -953,6 +1017,10 @@
LOAD_( colr );
}
+ /* OpenType-SVG glyph support */
+ if ( sfnt->load_svg )
+ LOAD_( svg );
+
/* consider the pclt, kerning, and gasp tables as optional */
LOAD_( pclt );
LOAD_( gasp );
@@ -995,6 +1063,16 @@
GET_NAME( FONT_SUBFAMILY, &face->root.style_name );
}
+#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
+ {
+ FT_Memory memory = face->root.memory;
+
+
+ if ( FT_STRDUP( face->non_var_style_name, face->root.style_name ) )
+ goto Exit;
+ }
+#endif
+
/* now set up root fields */
{
FT_Face root = &face->root;
@@ -1007,11 +1085,19 @@
*/
if ( face->sbit_table_type == TT_SBIT_TABLE_TYPE_CBLC ||
face->sbit_table_type == TT_SBIT_TABLE_TYPE_SBIX ||
- face->colr )
+ face->colr ||
+ face->svg )
flags |= FT_FACE_FLAG_COLOR; /* color glyphs */
if ( has_outline == TRUE )
- flags |= FT_FACE_FLAG_SCALABLE; /* scalable outlines */
+ {
+ /* by default (and for backward compatibility) we handle */
+ /* fonts with an 'sbix' table as bitmap-only */
+ if ( has_sbix )
+ flags |= FT_FACE_FLAG_SBIX; /* with 'sbix' bitmaps */
+ else
+ flags |= FT_FACE_FLAG_SCALABLE; /* scalable outlines */
+ }
/* The sfnt driver only supports bitmap fonts natively, thus we */
/* don't set FT_FACE_FLAG_HINTER. */
@@ -1040,13 +1126,7 @@
/* Don't bother to load the tables unless somebody asks for them. */
/* No need to do work which will (probably) not be used. */
if ( face->variation_support & TT_FACE_FLAG_VAR_FVAR )
- {
- if ( tt_face_lookup_table( face, TTAG_glyf ) != 0 &&
- tt_face_lookup_table( face, TTAG_gvar ) != 0 )
- flags |= FT_FACE_FLAG_MULTIPLE_MASTERS;
- if ( tt_face_lookup_table( face, TTAG_CFF2 ) != 0 )
- flags |= FT_FACE_FLAG_MULTIPLE_MASTERS;
- }
+ flags |= FT_FACE_FLAG_MULTIPLE_MASTERS;
#endif
root->face_flags = flags;
@@ -1120,9 +1200,10 @@
}
/* synthesize Unicode charmap if one is missing */
- if ( !has_unicode )
+ if ( !has_unicode &&
+ root->face_flags & FT_FACE_FLAG_GLYPH_NAMES )
{
- FT_CharMapRec cmaprec;
+ FT_CharMapRec cmaprec;
cmaprec.face = root;
@@ -1159,7 +1240,7 @@
if ( count > 0 )
{
- FT_Memory memory = face->root.stream->memory;
+ FT_Memory memory = face->root.memory;
FT_UShort em_size = face->header.Units_Per_EM;
FT_Short avgwidth = face->os2.xAvgCharWidth;
FT_Size_Metrics metrics;
@@ -1178,7 +1259,7 @@
/* of `FT_Face', we map `available_sizes' indices to strike */
/* indices */
if ( FT_NEW_ARRAY( root->available_sizes, count ) ||
- FT_NEW_ARRAY( sbit_strike_map, count ) )
+ FT_QNEW_ARRAY( sbit_strike_map, count ) )
goto Exit;
bsize_idx = 0;
@@ -1207,7 +1288,7 @@
}
/* reduce array size to the actually used elements */
- (void)FT_RENEW_ARRAY( sbit_strike_map, count, bsize_idx );
+ FT_MEM_QRENEW_ARRAY( sbit_strike_map, count, bsize_idx );
/* from now on, all strike indices are mapped */
/* using `sbit_strike_map' */
@@ -1233,7 +1314,8 @@
*
* Set up metrics.
*/
- if ( FT_IS_SCALABLE( root ) )
+ if ( FT_IS_SCALABLE( root ) ||
+ FT_HAS_SBIX( root ) )
{
/* XXX What about if outline header is missing */
/* (e.g. sfnt wrapped bitmap)? */
@@ -1372,6 +1454,12 @@
sfnt->free_cpal( face );
sfnt->free_colr( face );
}
+
+#ifdef FT_CONFIG_OPTION_SVG
+ /* free SVG data */
+ if ( sfnt->free_svg )
+ sfnt->free_svg( face );
+#endif
}
#ifdef TT_CONFIG_OPTION_BDF
@@ -1431,6 +1519,7 @@
#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
FT_FREE( face->var_postscript_prefix );
+ FT_FREE( face->non_var_style_name );
#endif
/* freeing glyph color palette data */
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-19 03:11:25 +0000