diff -r 92af50454cf2 -r 8054d9d775fd misc/libfreetype/src/gxvalid/gxvmorx5.c --- a/misc/libfreetype/src/gxvalid/gxvmorx5.c Fri Oct 11 11:55:31 2013 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,217 +0,0 @@ -/***************************************************************************/ -/* */ -/* gxvmorx5.c */ -/* */ -/* TrueTypeGX/AAT morx table validation */ -/* body for type5 (Contextual Glyph Insertion) subtable. */ -/* */ -/* Copyright 2005, 2007 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ -/* 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. */ -/* */ -/***************************************************************************/ - -/***************************************************************************/ -/* */ -/* gxvalid is derived from both gxlayout module and otvalid module. */ -/* Development of gxlayout is supported by the Information-technology */ -/* Promotion Agency(IPA), Japan. */ -/* */ -/***************************************************************************/ - - -#include "gxvmorx.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_gxvmorx - - - /* - * `morx' subtable type5 (Contextual Glyph Insertion) - * has format of a StateTable with insertion-glyph-list - * without name. However, the 32bit offset from the head - * of subtable to the i-g-l is given after `entryTable', - * without variable name specification (the existence of - * this offset to the table is different from mort type5). - */ - - - typedef struct GXV_morx_subtable_type5_StateOptRec_ - { - FT_ULong insertionGlyphList; - FT_ULong insertionGlyphList_length; - - } GXV_morx_subtable_type5_StateOptRec, - *GXV_morx_subtable_type5_StateOptRecData; - - -#define GXV_MORX_SUBTABLE_TYPE5_HEADER_SIZE \ - ( GXV_STATETABLE_HEADER_SIZE + 4 ) - - - static void - gxv_morx_subtable_type5_insertionGlyphList_load( FT_Bytes table, - FT_Bytes limit, - GXV_Validator valid ) - { - FT_Bytes p = table; - - GXV_morx_subtable_type5_StateOptRecData optdata = - (GXV_morx_subtable_type5_StateOptRecData)valid->xstatetable.optdata; - - - GXV_LIMIT_CHECK( 4 ); - optdata->insertionGlyphList = FT_NEXT_ULONG( p ); - } - - - static void - gxv_morx_subtable_type5_subtable_setup( FT_ULong table_size, - FT_ULong classTable, - FT_ULong stateArray, - FT_ULong entryTable, - FT_ULong* classTable_length_p, - FT_ULong* stateArray_length_p, - FT_ULong* entryTable_length_p, - GXV_Validator valid ) - { - FT_ULong o[4]; - FT_ULong* l[4]; - FT_ULong buff[5]; - - GXV_morx_subtable_type5_StateOptRecData optdata = - (GXV_morx_subtable_type5_StateOptRecData)valid->xstatetable.optdata; - - - o[0] = classTable; - o[1] = stateArray; - o[2] = entryTable; - o[3] = optdata->insertionGlyphList; - l[0] = classTable_length_p; - l[1] = stateArray_length_p; - l[2] = entryTable_length_p; - l[3] = &(optdata->insertionGlyphList_length); - - gxv_set_length_by_ulong_offset( o, l, buff, 4, table_size, valid ); - } - - - static void - gxv_morx_subtable_type5_InsertList_validate( FT_UShort table_index, - FT_UShort count, - FT_Bytes table, - FT_Bytes limit, - GXV_Validator valid ) - { - FT_Bytes p = table + table_index * 2; - - - while ( p < table + count * 2 + table_index * 2 ) - { - FT_UShort insert_glyphID; - - - GXV_LIMIT_CHECK( 2 ); - insert_glyphID = FT_NEXT_USHORT( p ); - GXV_TRACE(( " 0x%04x", insert_glyphID )); - } - - GXV_TRACE(( "\n" )); - } - - - static void - gxv_morx_subtable_type5_entry_validate( - FT_UShort state, - FT_UShort flags, - GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, - FT_Bytes table, - FT_Bytes limit, - GXV_Validator valid ) - { - FT_Bool setMark; - FT_Bool dontAdvance; - FT_Bool currentIsKashidaLike; - FT_Bool markedIsKashidaLike; - FT_Bool currentInsertBefore; - FT_Bool markedInsertBefore; - FT_Byte currentInsertCount; - FT_Byte markedInsertCount; - FT_Byte currentInsertList; - FT_UShort markedInsertList; - - FT_UNUSED( state ); - - - setMark = FT_BOOL( ( flags >> 15 ) & 1 ); - dontAdvance = FT_BOOL( ( flags >> 14 ) & 1 ); - currentIsKashidaLike = FT_BOOL( ( flags >> 13 ) & 1 ); - markedIsKashidaLike = FT_BOOL( ( flags >> 12 ) & 1 ); - currentInsertBefore = FT_BOOL( ( flags >> 11 ) & 1 ); - markedInsertBefore = FT_BOOL( ( flags >> 10 ) & 1 ); - - currentInsertCount = (FT_Byte)( ( flags >> 5 ) & 0x1F ); - markedInsertCount = (FT_Byte)( flags & 0x001F ); - - currentInsertList = (FT_Byte) ( glyphOffset_p->ul >> 16 ); - markedInsertList = (FT_UShort)( glyphOffset_p->ul ); - - if ( currentInsertList && 0 != currentInsertCount ) - gxv_morx_subtable_type5_InsertList_validate( currentInsertList, - currentInsertCount, - table, limit, - valid ); - - if ( markedInsertList && 0 != markedInsertCount ) - gxv_morx_subtable_type5_InsertList_validate( markedInsertList, - markedInsertCount, - table, limit, - valid ); - } - - - FT_LOCAL_DEF( void ) - gxv_morx_subtable_type5_validate( FT_Bytes table, - FT_Bytes limit, - GXV_Validator valid ) - { - FT_Bytes p = table; - - GXV_morx_subtable_type5_StateOptRec et_rec; - GXV_morx_subtable_type5_StateOptRecData et = &et_rec; - - - GXV_NAME_ENTER( "morx chain subtable type5 (Glyph Insertion)" ); - - GXV_LIMIT_CHECK( GXV_MORX_SUBTABLE_TYPE5_HEADER_SIZE ); - - valid->xstatetable.optdata = - et; - valid->xstatetable.optdata_load_func = - gxv_morx_subtable_type5_insertionGlyphList_load; - valid->xstatetable.subtable_setup_func = - gxv_morx_subtable_type5_subtable_setup; - valid->xstatetable.entry_glyphoffset_fmt = - GXV_GLYPHOFFSET_ULONG; - valid->xstatetable.entry_validate_func = - gxv_morx_subtable_type5_entry_validate; - - gxv_XStateTable_validate( p, limit, valid ); - - GXV_EXIT; - } - - -/* END */