-/***************************************************************************/
-/* */
-/* otvmath.c */
-/* */
-/* OpenType MATH table validation (body). */
-/* */
-/* Copyright 2007, 2008 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* Written by George Williams. */
-/* */
-/* 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. */
-/* */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * otvmath.c
+ *
+ * OpenType MATH table validation (body).
+ *
+ * Copyright (C) 2007-2020 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * Written by George Williams.
+ *
+ * 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 "otvalid.h"
#include "otvgpos.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_otvmath
+#define FT_COMPONENT otvmath
static void
otv_MathConstants_validate( FT_Bytes table,
- OTV_Validator valid )
+ OTV_Validator otvalid )
{
FT_Bytes p = table;
FT_UInt i;
table_size = 2 * ( 56 + 51 );
p += 4 * 2; /* First 4 constants have no device tables */
- for ( i = 0; i < 51; ++i )
+ for ( i = 0; i < 51; i++ )
{
p += 2; /* skip the value */
OTV_OPTIONAL_OFFSET( DeviceTableOffset );
OTV_SIZE_CHECK( DeviceTableOffset );
if ( DeviceTableOffset )
- otv_Device_validate( table + DeviceTableOffset, valid );
+ otv_Device_validate( table + DeviceTableOffset, otvalid );
}
OTV_EXIT;
static void
otv_MathItalicsCorrectionInfo_validate( FT_Bytes table,
- OTV_Validator valid,
+ OTV_Validator otvalid,
FT_Int isItalic )
{
FT_Bytes p = table;
- FT_UInt i, cnt, table_size ;
+ FT_UInt i, cnt, table_size;
OTV_OPTIONAL_TABLE( Coverage );
OTV_OPTIONAL_TABLE( DeviceTableOffset );
table_size = 4 + 4 * cnt;
OTV_SIZE_CHECK( Coverage );
- otv_Coverage_validate( table + Coverage, valid, cnt );
+ otv_Coverage_validate( table + Coverage, otvalid, (FT_Int)cnt );
- for ( i = 0; i < cnt; ++i )
+ for ( i = 0; i < cnt; i++ )
{
p += 2; /* Skip the value */
OTV_OPTIONAL_OFFSET( DeviceTableOffset );
OTV_SIZE_CHECK( DeviceTableOffset );
if ( DeviceTableOffset )
- otv_Device_validate( table + DeviceTableOffset, valid );
+ otv_Device_validate( table + DeviceTableOffset, otvalid );
}
OTV_EXIT;
static void
otv_MathKern_validate( FT_Bytes table,
- OTV_Validator valid )
+ OTV_Validator otvalid )
{
FT_Bytes p = table;
FT_UInt i, cnt, table_size;
table_size = 4 + 4 * cnt;
/* Heights */
- for ( i = 0; i < cnt; ++i )
+ for ( i = 0; i < cnt; i++ )
{
p += 2; /* Skip the value */
OTV_OPTIONAL_OFFSET( DeviceTableOffset );
OTV_SIZE_CHECK( DeviceTableOffset );
if ( DeviceTableOffset )
- otv_Device_validate( table + DeviceTableOffset, valid );
+ otv_Device_validate( table + DeviceTableOffset, otvalid );
}
/* One more Kerning value */
- for ( i = 0; i < cnt + 1; ++i )
+ for ( i = 0; i < cnt + 1; i++ )
{
p += 2; /* Skip the value */
OTV_OPTIONAL_OFFSET( DeviceTableOffset );
OTV_SIZE_CHECK( DeviceTableOffset );
if ( DeviceTableOffset )
- otv_Device_validate( table + DeviceTableOffset, valid );
+ otv_Device_validate( table + DeviceTableOffset, otvalid );
}
OTV_EXIT;
static void
otv_MathKernInfo_validate( FT_Bytes table,
- OTV_Validator valid )
+ OTV_Validator otvalid )
{
FT_Bytes p = table;
FT_UInt i, j, cnt, table_size;
table_size = 4 + 8 * cnt;
OTV_SIZE_CHECK( Coverage );
- otv_Coverage_validate( table + Coverage, valid, cnt );
+ otv_Coverage_validate( table + Coverage, otvalid, (FT_Int)cnt );
- for ( i = 0; i < cnt; ++i )
+ for ( i = 0; i < cnt; i++ )
{
- for ( j = 0; j < 4; ++j )
+ for ( j = 0; j < 4; j++ )
{
OTV_OPTIONAL_OFFSET( MKRecordOffset );
OTV_SIZE_CHECK( MKRecordOffset );
if ( MKRecordOffset )
- otv_MathKern_validate( table + MKRecordOffset, valid );
+ otv_MathKern_validate( table + MKRecordOffset, otvalid );
}
}
static void
otv_MathGlyphInfo_validate( FT_Bytes table,
- OTV_Validator valid )
+ OTV_Validator otvalid )
{
FT_Bytes p = table;
FT_UInt MathItalicsCorrectionInfo, MathTopAccentAttachment;
if ( MathItalicsCorrectionInfo )
otv_MathItalicsCorrectionInfo_validate(
- table + MathItalicsCorrectionInfo, valid, TRUE );
+ table + MathItalicsCorrectionInfo, otvalid, TRUE );
/* Italic correction and Top Accent Attachment have the same format */
if ( MathTopAccentAttachment )
otv_MathItalicsCorrectionInfo_validate(
- table + MathTopAccentAttachment, valid, FALSE );
+ table + MathTopAccentAttachment, otvalid, FALSE );
if ( ExtendedShapeCoverage )
{
OTV_NAME_ENTER( "ExtendedShapeCoverage" );
- otv_Coverage_validate( table + ExtendedShapeCoverage, valid, -1 );
+ otv_Coverage_validate( table + ExtendedShapeCoverage, otvalid, -1 );
OTV_EXIT;
}
if ( MathKernInfo )
- otv_MathKernInfo_validate( table + MathKernInfo, valid );
+ otv_MathKernInfo_validate( table + MathKernInfo, otvalid );
OTV_EXIT;
}
static void
otv_GlyphAssembly_validate( FT_Bytes table,
- OTV_Validator valid )
+ OTV_Validator otvalid )
{
FT_Bytes p = table;
FT_UInt pcnt, table_size;
OTV_SIZE_CHECK( DeviceTableOffset );
if ( DeviceTableOffset )
- otv_Device_validate( table + DeviceTableOffset, valid );
+ otv_Device_validate( table + DeviceTableOffset, otvalid );
- for ( i = 0; i < pcnt; ++i )
+ for ( i = 0; i < pcnt; i++ )
{
FT_UInt gid;
gid = FT_NEXT_USHORT( p );
- if ( gid >= valid->glyph_count )
+ if ( gid >= otvalid->glyph_count )
FT_INVALID_GLYPH_ID;
p += 2*4; /* skip the Start, End, Full, and Flags fields */
}
static void
otv_MathGlyphConstruction_validate( FT_Bytes table,
- OTV_Validator valid )
+ OTV_Validator otvalid )
{
FT_Bytes p = table;
FT_UInt vcnt, table_size;
OTV_LIMIT_CHECK( 4 * vcnt );
table_size = 4 + 4 * vcnt;
- for ( i = 0; i < vcnt; ++i )
+ for ( i = 0; i < vcnt; i++ )
{
FT_UInt gid;
gid = FT_NEXT_USHORT( p );
- if ( gid >= valid->glyph_count )
+ if ( gid >= otvalid->glyph_count )
FT_INVALID_GLYPH_ID;
p += 2; /* skip the size */
}
OTV_SIZE_CHECK( GlyphAssembly );
if ( GlyphAssembly )
- otv_GlyphAssembly_validate( table+GlyphAssembly, valid );
+ otv_GlyphAssembly_validate( table+GlyphAssembly, otvalid );
/* OTV_EXIT; */
}
static void
otv_MathVariants_validate( FT_Bytes table,
- OTV_Validator valid )
+ OTV_Validator otvalid )
{
FT_Bytes p = table;
FT_UInt vcnt, hcnt, i, table_size;
OTV_SIZE_CHECK( VCoverage );
if ( VCoverage )
- otv_Coverage_validate( table + VCoverage, valid, vcnt );
+ otv_Coverage_validate( table + VCoverage, otvalid, (FT_Int)vcnt );
OTV_SIZE_CHECK( HCoverage );
if ( HCoverage )
- otv_Coverage_validate( table + HCoverage, valid, hcnt );
+ otv_Coverage_validate( table + HCoverage, otvalid, (FT_Int)hcnt );
- for ( i = 0; i < vcnt; ++i )
+ for ( i = 0; i < vcnt; i++ )
{
OTV_OPTIONAL_OFFSET( Offset );
OTV_SIZE_CHECK( Offset );
- otv_MathGlyphConstruction_validate( table + Offset, valid );
+ otv_MathGlyphConstruction_validate( table + Offset, otvalid );
}
- for ( i = 0; i < hcnt; ++i )
+ for ( i = 0; i < hcnt; i++ )
{
OTV_OPTIONAL_OFFSET( Offset );
OTV_SIZE_CHECK( Offset );
- otv_MathGlyphConstruction_validate( table + Offset, valid );
+ otv_MathGlyphConstruction_validate( table + Offset, otvalid );
}
OTV_EXIT;
/*************************************************************************/
/*************************************************************************/
- /* sets valid->glyph_count */
+ /* sets otvalid->glyph_count */
FT_LOCAL_DEF( void )
otv_MATH_validate( FT_Bytes table,
FT_UInt glyph_count,
FT_Validator ftvalid )
{
- OTV_ValidatorRec validrec;
- OTV_Validator valid = &validrec;
- FT_Bytes p = table;
+ OTV_ValidatorRec otvalidrec;
+ OTV_Validator otvalid = &otvalidrec;
+ FT_Bytes p = table;
FT_UInt MathConstants, MathGlyphInfo, MathVariants;
- valid->root = ftvalid;
+ otvalid->root = ftvalid;
FT_TRACE3(( "validating MATH table\n" ));
OTV_INIT;
MathGlyphInfo = FT_NEXT_USHORT( p );
MathVariants = FT_NEXT_USHORT( p );
- valid->glyph_count = glyph_count;
+ otvalid->glyph_count = glyph_count;
otv_MathConstants_validate( table + MathConstants,
- valid );
+ otvalid );
otv_MathGlyphInfo_validate( table + MathGlyphInfo,
- valid );
+ otvalid );
otv_MathVariants_validate ( table + MathVariants,
- valid );
+ otvalid );
FT_TRACE4(( "\n" ));
}
projects / platform / upstream / freetype2.git / blobdiff