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-rw-r--r--src/3rdparty/freetype/src/pfr/pfrload.c263
1 files changed, 138 insertions, 125 deletions
diff --git a/src/3rdparty/freetype/src/pfr/pfrload.c b/src/3rdparty/freetype/src/pfr/pfrload.c
index 2776da462a..856a5942f5 100644
--- a/src/3rdparty/freetype/src/pfr/pfrload.c
+++ b/src/3rdparty/freetype/src/pfr/pfrload.c
@@ -1,114 +1,114 @@
-/***************************************************************************/
-/* */
-/* pfrload.c */
-/* */
-/* FreeType PFR loader (body). */
-/* */
-/* Copyright 2002-2018 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. */
-/* */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pfrload.c
+ *
+ * FreeType PFR loader (body).
+ *
+ * Copyright (C) 2002-2023 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 "pfrload.h"
-#include FT_INTERNAL_DEBUG_H
-#include FT_INTERNAL_STREAM_H
+#include <freetype/internal/ftdebug.h>
+#include <freetype/internal/ftstream.h>
#include "pfrerror.h"
#undef FT_COMPONENT
-#define FT_COMPONENT trace_pfr
+#define FT_COMPONENT pfr
/*
- * The overall structure of a PFR file is as follows.
+ * The overall structure of a PFR file is as follows.
*
- * PFR header
- * 58 bytes (contains nPhysFonts)
+ * PFR header
+ * 58 bytes (contains nPhysFonts)
*
- * Logical font directory (size at most 2^16 bytes)
- * 2 bytes (nLogFonts)
- * + nLogFonts * 5 bytes
+ * Logical font directory (size at most 2^16 bytes)
+ * 2 bytes (nLogFonts)
+ * + nLogFonts * 5 bytes
*
- * ==> nLogFonts <= 13106
+ * ==> nLogFonts <= 13106
*
- * Logical font section (size at most 2^24 bytes)
- * nLogFonts * logFontRecord
+ * Logical font section (size at most 2^24 bytes)
+ * nLogFonts * logFontRecord
*
- * logFontRecord (size at most 2^16 bytes)
- * 12 bytes (fontMatrix)
- * + 1 byte (flags)
- * + 0-5 bytes (depending on `flags')
- * + 0-(1+255*(2+255)) = 0-65536 (depending on `flags')
- * + 5 bytes (physical font info)
- * + 0-1 bytes (depending on PFR header)
+ * logFontRecord (size at most 2^16 bytes)
+ * 12 bytes (fontMatrix)
+ * + 1 byte (flags)
+ * + 0-5 bytes (depending on `flags')
+ * + 0-(1+255*(2+255)) = 0-65536 (depending on `flags')
+ * + 5 bytes (physical font info)
+ * + 0-1 bytes (depending on PFR header)
*
- * ==> minimum size 18 bytes
+ * ==> minimum size 18 bytes
*
- * Physical font section (size at most 2^24 bytes)
- * nPhysFonts * (physFontRecord
- * + nBitmapSizes * nBmapChars * bmapCharRecord)
+ * Physical font section (size at most 2^24 bytes)
+ * nPhysFonts * (physFontRecord
+ * + nBitmapSizes * nBmapChars * bmapCharRecord)
*
- * physFontRecord (size at most 2^24 bytes)
- * 14 bytes (font info)
- * + 1 byte (flags)
- * + 0-2 (depending on `flags')
- * + 0-? (structure too complicated to be shown here; depending on
- * `flags'; contains `nBitmapSizes' and `nBmapChars')
- * + 3 bytes (nAuxBytes)
- * + nAuxBytes
- * + 1 byte (nBlueValues)
- * + 2 * nBlueValues
- * + 6 bytes (hinting data)
- * + 2 bytes (nCharacters)
- * + nCharacters * (4-10 bytes) (depending on `flags')
+ * physFontRecord (size at most 2^24 bytes)
+ * 14 bytes (font info)
+ * + 1 byte (flags)
+ * + 0-2 (depending on `flags')
+ * + 0-? (structure too complicated to be shown here; depending on
+ * `flags'; contains `nBitmapSizes' and `nBmapChars')
+ * + 3 bytes (nAuxBytes)
+ * + nAuxBytes
+ * + 1 byte (nBlueValues)
+ * + 2 * nBlueValues
+ * + 6 bytes (hinting data)
+ * + 2 bytes (nCharacters)
+ * + nCharacters * (4-10 bytes) (depending on `flags')
*
- * ==> minimum size 27 bytes
+ * ==> minimum size 27 bytes
*
- * bmapCharRecord
- * 4-7 bytes
+ * bmapCharRecord
+ * 4-7 bytes
*
- * Glyph program strings (three possible types: simpleGps, compoundGps,
- * and bitmapGps; size at most 2^24 bytes)
- * simpleGps (size at most 2^16 bytes)
- * 1 byte (flags)
- * 1-2 bytes (n[XY]orus, depending on `flags')
- * 0-(64+512*2) = 0-1088 bytes (depending on `n[XY]orus')
- * 0-? (structure too complicated to be shown here; depending on
- * `flags')
- * 1-? glyph data (faintly resembling PS Type 1 charstrings)
+ * Glyph program strings (three possible types: simpleGps, compoundGps,
+ * and bitmapGps; size at most 2^24 bytes)
+ * simpleGps (size at most 2^16 bytes)
+ * 1 byte (flags)
+ * 1-2 bytes (n[XY]orus, depending on `flags')
+ * 0-(64+512*2) = 0-1088 bytes (depending on `n[XY]orus')
+ * 0-? (structure too complicated to be shown here; depending on
+ * `flags')
+ * 1-? glyph data (faintly resembling PS Type 1 charstrings)
*
- * ==> minimum size 3 bytes
+ * ==> minimum size 3 bytes
*
- * compoundGps (size at most 2^16 bytes)
- * 1 byte (nElements <= 63, flags)
- * + 0-(1+255*(2+255)) = 0-65536 (depending on `flags')
- * + nElements * (6-14 bytes)
+ * compoundGps (size at most 2^16 bytes)
+ * 1 byte (nElements <= 63, flags)
+ * + 0-(1+255*(2+255)) = 0-65536 (depending on `flags')
+ * + nElements * (6-14 bytes)
*
- * bitmapGps (size at most 2^16 bytes)
- * 1 byte (flags)
- * 3-13 bytes (position info, depending on `flags')
- * 0-? bitmap data
+ * bitmapGps (size at most 2^16 bytes)
+ * 1 byte (flags)
+ * 3-13 bytes (position info, depending on `flags')
+ * 0-? bitmap data
*
- * ==> minimum size 4 bytes
+ * ==> minimum size 4 bytes
*
- * PFR trailer
- * 8 bytes
+ * PFR trailer
+ * 8 bytes
*
*
- * ==> minimum size of a valid PFR:
- * 58 (header)
- * + 2 (nLogFonts)
- * + 27 (1 physFontRecord)
- * + 8 (trailer)
- * -----
- * 95 bytes
+ * ==> minimum size of a valid PFR:
+ * 58 (header)
+ * + 2 (nLogFonts)
+ * + 27 (1 physFontRecord)
+ * + 8 (trailer)
+ * -----
+ * 95 bytes
*
*/
@@ -268,9 +268,7 @@
header->version > 4 ||
header->header_size < 58 ||
header->signature2 != 0x0D0A ) /* CR/LF */
- {
result = 0;
- }
return result;
}
@@ -406,11 +404,9 @@
}
if ( flags & PFR_LOG_BOLD )
- {
log_font->bold_thickness = ( flags & PFR_LOG_2BYTE_BOLD )
? PFR_NEXT_SHORT( p )
: PFR_NEXT_BYTE( p );
- }
if ( flags & PFR_LOG_EXTRA_ITEMS )
{
@@ -453,15 +449,16 @@
/* load bitmap strikes lists */
FT_CALLBACK_DEF( FT_Error )
- pfr_extra_item_load_bitmap_info( FT_Byte* p,
- FT_Byte* limit,
- PFR_PhyFont phy_font )
+ pfr_extra_item_load_bitmap_info( FT_Byte* p,
+ FT_Byte* limit,
+ void* phy_font_ )
{
- FT_Memory memory = phy_font->memory;
- PFR_Strike strike;
- FT_UInt flags0;
- FT_UInt n, count, size1;
- FT_Error error = FT_Err_Ok;
+ PFR_PhyFont phy_font = (PFR_PhyFont)phy_font_;
+ FT_Memory memory = phy_font->memory;
+ PFR_Strike strike;
+ FT_UInt flags0;
+ FT_UInt n, count, size1;
+ FT_Error error = FT_Err_Ok;
PFR_CHECK( 5 );
@@ -553,19 +550,20 @@
* family.
*/
FT_CALLBACK_DEF( FT_Error )
- pfr_extra_item_load_font_id( FT_Byte* p,
- FT_Byte* limit,
- PFR_PhyFont phy_font )
+ pfr_extra_item_load_font_id( FT_Byte* p,
+ FT_Byte* limit,
+ void* phy_font_ )
{
- FT_Error error = FT_Err_Ok;
- FT_Memory memory = phy_font->memory;
- FT_UInt len = (FT_UInt)( limit - p );
+ PFR_PhyFont phy_font = (PFR_PhyFont)phy_font_;
+ FT_Error error = FT_Err_Ok;
+ FT_Memory memory = phy_font->memory;
+ FT_UInt len = (FT_UInt)( limit - p );
if ( phy_font->font_id )
goto Exit;
- if ( FT_ALLOC( phy_font->font_id, len + 1 ) )
+ if ( FT_QALLOC( phy_font->font_id, len + 1 ) )
goto Exit;
/* copy font ID name, and terminate it for safety */
@@ -579,14 +577,15 @@
/* load stem snap tables */
FT_CALLBACK_DEF( FT_Error )
- pfr_extra_item_load_stem_snaps( FT_Byte* p,
- FT_Byte* limit,
- PFR_PhyFont phy_font )
+ pfr_extra_item_load_stem_snaps( FT_Byte* p,
+ FT_Byte* limit,
+ void* phy_font_ )
{
- FT_UInt count, num_vert, num_horz;
- FT_Int* snaps = NULL;
- FT_Error error = FT_Err_Ok;
- FT_Memory memory = phy_font->memory;
+ PFR_PhyFont phy_font = (PFR_PhyFont)phy_font_;
+ FT_UInt count, num_vert, num_horz;
+ FT_Int* snaps = NULL;
+ FT_Error error = FT_Err_Ok;
+ FT_Memory memory = phy_font->memory;
if ( phy_font->vertical.stem_snaps )
@@ -601,10 +600,10 @@
PFR_CHECK( count * 2 );
- if ( FT_NEW_ARRAY( snaps, count ) )
+ if ( FT_QNEW_ARRAY( snaps, count ) )
goto Exit;
- phy_font->vertical.stem_snaps = snaps;
+ phy_font->vertical.stem_snaps = snaps;
phy_font->horizontal.stem_snaps = snaps + num_vert;
for ( ; count > 0; count--, snaps++ )
@@ -621,13 +620,13 @@
}
-
/* load kerning pair data */
FT_CALLBACK_DEF( FT_Error )
- pfr_extra_item_load_kerning_pairs( FT_Byte* p,
- FT_Byte* limit,
- PFR_PhyFont phy_font )
+ pfr_extra_item_load_kerning_pairs( FT_Byte* p,
+ FT_Byte* limit,
+ void* phy_font_ )
{
+ PFR_PhyFont phy_font = (PFR_PhyFont)phy_font_;
PFR_KernItem item = NULL;
FT_Error error = FT_Err_Ok;
FT_Memory memory = phy_font->memory;
@@ -720,10 +719,10 @@
static const PFR_ExtraItemRec pfr_phy_font_extra_items[] =
{
- { 1, (PFR_ExtraItem_ParseFunc)pfr_extra_item_load_bitmap_info },
- { 2, (PFR_ExtraItem_ParseFunc)pfr_extra_item_load_font_id },
- { 3, (PFR_ExtraItem_ParseFunc)pfr_extra_item_load_stem_snaps },
- { 4, (PFR_ExtraItem_ParseFunc)pfr_extra_item_load_kerning_pairs },
+ { 1, pfr_extra_item_load_bitmap_info },
+ { 2, pfr_extra_item_load_font_id },
+ { 3, pfr_extra_item_load_stem_snaps },
+ { 4, pfr_extra_item_load_kerning_pairs },
{ 0, NULL }
};
@@ -761,7 +760,7 @@
if ( ok )
{
- if ( FT_ALLOC( result, len + 1 ) )
+ if ( FT_QALLOC( result, len + 1 ) )
goto Exit;
FT_MEM_COPY( result, p, len );
@@ -857,8 +856,16 @@
phy_font->bbox.yMax = PFR_NEXT_SHORT( p );
phy_font->flags = flags = PFR_NEXT_BYTE( p );
+ if ( !phy_font->outline_resolution ||
+ !phy_font->metrics_resolution )
+ {
+ error = FT_THROW( Invalid_Table );
+ FT_ERROR(( "pfr_phy_font_load: invalid resolution\n" ));
+ goto Fail;
+ }
+
/* get the standard advance for non-proportional fonts */
- if ( !(flags & PFR_PHY_PROPORTIONAL) )
+ if ( !( flags & PFR_PHY_PROPORTIONAL ) )
{
PFR_CHECK( 2 );
phy_font->standard_advance = PFR_NEXT_SHORT( p );
@@ -869,14 +876,13 @@
{
error = pfr_extra_items_parse( &p, limit,
pfr_phy_font_extra_items, phy_font );
-
if ( error )
goto Fail;
}
/* In certain fonts, the auxiliary bytes contain interesting */
/* information. These are not in the specification but can be */
- /* guessed by looking at the content of a few PFR0 fonts. */
+ /* guessed by looking at the content of a few 'PFR0' fonts. */
PFR_CHECK( 3 );
num_aux = PFR_NEXT_ULONG( p );
@@ -953,7 +959,7 @@
PFR_CHECK( count * 2 );
- if ( FT_NEW_ARRAY( phy_font->blue_values, count ) )
+ if ( FT_QNEW_ARRAY( phy_font->blue_values, count ) )
goto Fail;
for ( n = 0; n < count; n++ )
@@ -975,6 +981,13 @@
phy_font->num_chars = count = PFR_NEXT_USHORT( p );
phy_font->chars_offset = offset + (FT_Offset)( p - stream->cursor );
+ if ( !phy_font->num_chars )
+ {
+ error = FT_THROW( Invalid_Table );
+ FT_ERROR(( "pfr_phy_font_load: no glyphs\n" ));
+ goto Fail;
+ }
+
Size = 1 + 1 + 2;
if ( flags & PFR_PHY_2BYTE_CHARCODE )
Size += 1;
@@ -993,7 +1006,7 @@
PFR_CHECK_SIZE( count * Size );
- if ( FT_NEW_ARRAY( phy_font->chars, count ) )
+ if ( FT_QNEW_ARRAY( phy_font->chars, count ) )
goto Fail;
for ( n = 0; n < count; n++ )
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-26 07:46:44 +0000