diff options
author | Akira Kakuto <kakuto@fuk.kindai.ac.jp> | 2015-12-28 12:09:41 +0000 |
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committer | Akira Kakuto <kakuto@fuk.kindai.ac.jp> | 2015-12-28 12:09:41 +0000 |
commit | 1fff76f0c267ade1406b5a8a9a8c48c7cab1ad4f (patch) | |
tree | 7701270ffe1ed4b8ec08208b9ccdf2afb0b5f957 /Build/source/libs/freetype2/freetype-2.6.1/src/otvalid/otvmath.c | |
parent | 28d16176960e908983aaa3926faddc374209de78 (diff) |
freetype-2.6.2
git-svn-id: svn://tug.org/texlive/trunk@39211 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/freetype2/freetype-2.6.1/src/otvalid/otvmath.c')
-rw-r--r-- | Build/source/libs/freetype2/freetype-2.6.1/src/otvalid/otvmath.c | 453 |
1 files changed, 0 insertions, 453 deletions
diff --git a/Build/source/libs/freetype2/freetype-2.6.1/src/otvalid/otvmath.c b/Build/source/libs/freetype2/freetype-2.6.1/src/otvalid/otvmath.c deleted file mode 100644 index db3d5f8f52d..00000000000 --- a/Build/source/libs/freetype2/freetype-2.6.1/src/otvalid/otvmath.c +++ /dev/null @@ -1,453 +0,0 @@ -/***************************************************************************/ -/* */ -/* otvmath.c */ -/* */ -/* OpenType MATH table validation (body). */ -/* */ -/* Copyright 2007-2015 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 "otvcommn.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. */ - /* */ -#undef FT_COMPONENT -#define FT_COMPONENT trace_otvmath - - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** MATH TYPOGRAPHIC CONSTANTS *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - static void - otv_MathConstants_validate( FT_Bytes table, - OTV_Validator otvalid ) - { - FT_Bytes p = table; - FT_UInt i; - FT_UInt table_size; - - OTV_OPTIONAL_TABLE( DeviceTableOffset ); - - - OTV_NAME_ENTER( "MathConstants" ); - - /* 56 constants, 51 have device tables */ - OTV_LIMIT_CHECK( 2 * ( 56 + 51 ) ); - table_size = 2 * ( 56 + 51 ); - - p += 4 * 2; /* First 4 constants have no device tables */ - 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, otvalid ); - } - - OTV_EXIT; - } - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** MATH ITALICS CORRECTION *****/ - /***** MATH TOP ACCENT ATTACHMENT *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - static void - otv_MathItalicsCorrectionInfo_validate( FT_Bytes table, - OTV_Validator otvalid, - FT_Int isItalic ) - { - FT_Bytes p = table; - FT_UInt i, cnt, table_size ; - - OTV_OPTIONAL_TABLE( Coverage ); - OTV_OPTIONAL_TABLE( DeviceTableOffset ); - - FT_UNUSED( isItalic ); /* only used if tracing is active */ - - - OTV_NAME_ENTER( isItalic ? "MathItalicsCorrectionInfo" - : "MathTopAccentAttachment" ); - - OTV_LIMIT_CHECK( 4 ); - - OTV_OPTIONAL_OFFSET( Coverage ); - cnt = FT_NEXT_USHORT( p ); - - OTV_LIMIT_CHECK( 4 * cnt ); - table_size = 4 + 4 * cnt; - - OTV_SIZE_CHECK( Coverage ); - otv_Coverage_validate( table + Coverage, otvalid, (FT_Int)cnt ); - - 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, otvalid ); - } - - OTV_EXIT; - } - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** MATH KERNING *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - static void - otv_MathKern_validate( FT_Bytes table, - OTV_Validator otvalid ) - { - FT_Bytes p = table; - FT_UInt i, cnt, table_size; - - OTV_OPTIONAL_TABLE( DeviceTableOffset ); - - - /* OTV_NAME_ENTER( "MathKern" );*/ - - OTV_LIMIT_CHECK( 2 ); - - cnt = FT_NEXT_USHORT( p ); - - OTV_LIMIT_CHECK( 4 * cnt + 2 ); - table_size = 4 + 4 * cnt; - - /* Heights */ - 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, otvalid ); - } - - /* One more Kerning value */ - 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, otvalid ); - } - - OTV_EXIT; - } - - - static void - otv_MathKernInfo_validate( FT_Bytes table, - OTV_Validator otvalid ) - { - FT_Bytes p = table; - FT_UInt i, j, cnt, table_size; - - OTV_OPTIONAL_TABLE( Coverage ); - OTV_OPTIONAL_TABLE( MKRecordOffset ); - - - OTV_NAME_ENTER( "MathKernInfo" ); - - OTV_LIMIT_CHECK( 4 ); - - OTV_OPTIONAL_OFFSET( Coverage ); - cnt = FT_NEXT_USHORT( p ); - - OTV_LIMIT_CHECK( 8 * cnt ); - table_size = 4 + 8 * cnt; - - OTV_SIZE_CHECK( Coverage ); - otv_Coverage_validate( table + Coverage, otvalid, (FT_Int)cnt ); - - for ( i = 0; i < cnt; ++i ) - { - for ( j = 0; j < 4; ++j ) - { - OTV_OPTIONAL_OFFSET( MKRecordOffset ); - OTV_SIZE_CHECK( MKRecordOffset ); - if ( MKRecordOffset ) - otv_MathKern_validate( table + MKRecordOffset, otvalid ); - } - } - - OTV_EXIT; - } - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** MATH GLYPH INFO *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - static void - otv_MathGlyphInfo_validate( FT_Bytes table, - OTV_Validator otvalid ) - { - FT_Bytes p = table; - FT_UInt MathItalicsCorrectionInfo, MathTopAccentAttachment; - FT_UInt ExtendedShapeCoverage, MathKernInfo; - - - OTV_NAME_ENTER( "MathGlyphInfo" ); - - OTV_LIMIT_CHECK( 8 ); - - MathItalicsCorrectionInfo = FT_NEXT_USHORT( p ); - MathTopAccentAttachment = FT_NEXT_USHORT( p ); - ExtendedShapeCoverage = FT_NEXT_USHORT( p ); - MathKernInfo = FT_NEXT_USHORT( p ); - - if ( MathItalicsCorrectionInfo ) - otv_MathItalicsCorrectionInfo_validate( - table + MathItalicsCorrectionInfo, otvalid, TRUE ); - - /* Italic correction and Top Accent Attachment have the same format */ - if ( MathTopAccentAttachment ) - otv_MathItalicsCorrectionInfo_validate( - table + MathTopAccentAttachment, otvalid, FALSE ); - - if ( ExtendedShapeCoverage ) - { - OTV_NAME_ENTER( "ExtendedShapeCoverage" ); - otv_Coverage_validate( table + ExtendedShapeCoverage, otvalid, -1 ); - OTV_EXIT; - } - - if ( MathKernInfo ) - otv_MathKernInfo_validate( table + MathKernInfo, otvalid ); - - OTV_EXIT; - } - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** MATH GLYPH CONSTRUCTION *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - static void - otv_GlyphAssembly_validate( FT_Bytes table, - OTV_Validator otvalid ) - { - FT_Bytes p = table; - FT_UInt pcnt, table_size; - FT_UInt i; - - OTV_OPTIONAL_TABLE( DeviceTableOffset ); - - - /* OTV_NAME_ENTER( "GlyphAssembly" ); */ - - OTV_LIMIT_CHECK( 6 ); - - p += 2; /* Skip the Italics Correction value */ - OTV_OPTIONAL_OFFSET( DeviceTableOffset ); - pcnt = FT_NEXT_USHORT( p ); - - OTV_LIMIT_CHECK( 8 * pcnt ); - table_size = 6 + 8 * pcnt; - - OTV_SIZE_CHECK( DeviceTableOffset ); - if ( DeviceTableOffset ) - otv_Device_validate( table + DeviceTableOffset, otvalid ); - - for ( i = 0; i < pcnt; ++i ) - { - FT_UInt gid; - - - gid = FT_NEXT_USHORT( p ); - if ( gid >= otvalid->glyph_count ) - FT_INVALID_GLYPH_ID; - p += 2*4; /* skip the Start, End, Full, and Flags fields */ - } - - /* OTV_EXIT; */ - } - - - static void - otv_MathGlyphConstruction_validate( FT_Bytes table, - OTV_Validator otvalid ) - { - FT_Bytes p = table; - FT_UInt vcnt, table_size; - FT_UInt i; - - OTV_OPTIONAL_TABLE( GlyphAssembly ); - - - /* OTV_NAME_ENTER( "MathGlyphConstruction" ); */ - - OTV_LIMIT_CHECK( 4 ); - - OTV_OPTIONAL_OFFSET( GlyphAssembly ); - vcnt = FT_NEXT_USHORT( p ); - - OTV_LIMIT_CHECK( 4 * vcnt ); - table_size = 4 + 4 * vcnt; - - for ( i = 0; i < vcnt; ++i ) - { - FT_UInt gid; - - - gid = FT_NEXT_USHORT( p ); - 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, otvalid ); - - /* OTV_EXIT; */ - } - - - static void - otv_MathVariants_validate( FT_Bytes table, - OTV_Validator otvalid ) - { - FT_Bytes p = table; - FT_UInt vcnt, hcnt, i, table_size; - - OTV_OPTIONAL_TABLE( VCoverage ); - OTV_OPTIONAL_TABLE( HCoverage ); - OTV_OPTIONAL_TABLE( Offset ); - - - OTV_NAME_ENTER( "MathVariants" ); - - OTV_LIMIT_CHECK( 10 ); - - p += 2; /* Skip the MinConnectorOverlap constant */ - OTV_OPTIONAL_OFFSET( VCoverage ); - OTV_OPTIONAL_OFFSET( HCoverage ); - vcnt = FT_NEXT_USHORT( p ); - hcnt = FT_NEXT_USHORT( p ); - - OTV_LIMIT_CHECK( 2 * vcnt + 2 * hcnt ); - table_size = 10 + 2 * vcnt + 2 * hcnt; - - OTV_SIZE_CHECK( VCoverage ); - if ( VCoverage ) - otv_Coverage_validate( table + VCoverage, otvalid, (FT_Int)vcnt ); - - OTV_SIZE_CHECK( HCoverage ); - if ( HCoverage ) - otv_Coverage_validate( table + HCoverage, otvalid, (FT_Int)hcnt ); - - for ( i = 0; i < vcnt; ++i ) - { - OTV_OPTIONAL_OFFSET( Offset ); - OTV_SIZE_CHECK( Offset ); - otv_MathGlyphConstruction_validate( table + Offset, otvalid ); - } - - for ( i = 0; i < hcnt; ++i ) - { - OTV_OPTIONAL_OFFSET( Offset ); - OTV_SIZE_CHECK( Offset ); - otv_MathGlyphConstruction_validate( table + Offset, otvalid ); - } - - OTV_EXIT; - } - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** MATH TABLE *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - /* sets otvalid->glyph_count */ - - FT_LOCAL_DEF( void ) - otv_MATH_validate( FT_Bytes table, - FT_UInt glyph_count, - FT_Validator ftvalid ) - { - OTV_ValidatorRec otvalidrec; - OTV_Validator otvalid = &otvalidrec; - FT_Bytes p = table; - FT_UInt MathConstants, MathGlyphInfo, MathVariants; - - - otvalid->root = ftvalid; - - FT_TRACE3(( "validating MATH table\n" )); - OTV_INIT; - - OTV_LIMIT_CHECK( 10 ); - - if ( FT_NEXT_ULONG( p ) != 0x10000UL ) /* Version */ - FT_INVALID_FORMAT; - - MathConstants = FT_NEXT_USHORT( p ); - MathGlyphInfo = FT_NEXT_USHORT( p ); - MathVariants = FT_NEXT_USHORT( p ); - - otvalid->glyph_count = glyph_count; - - otv_MathConstants_validate( table + MathConstants, - otvalid ); - otv_MathGlyphInfo_validate( table + MathGlyphInfo, - otvalid ); - otv_MathVariants_validate ( table + MathVariants, - otvalid ); - - FT_TRACE4(( "\n" )); - } - - -/* END */ |