009ce1aba8
(OTL_INVALID_OFFSET): Removed. * src/otlayout/otlgdef.h: Include otlayout.h. Comment out inclusion of otltable.h. * src/otlayout/otlgpos.c (otl_gpos_lookup4_validate): Fix call to otl_base_array_validate. (otl_liga_mark2_validate): Fix `for' loop. * src/otlayout/otlgsub.c (otl_ligature_validate): Check `glyph_id', not components array. * src/otlcommn.c (otl_lookup_get_count, otl_feature_get_count): Comment out. (otl_lookup_list_get_count, otl_feature_list_get_count): Activate. (otl_feature_list_validate, otl_gsubgpos_get_lookup_count): s/otl_lookup_get_count/otl_lookup_list_get_count/. (otl_script_list_validate): s/otl_feature_get_count/otl_feature_list_get_count/. (otl_script_validate): Call otl_lang_validate for default language. * src/otlayout/otlcommn.h: Updated.
237 lines
8.6 KiB
C
237 lines
8.6 KiB
C
/***************************************************************************/
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/* */
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/* otlayout.h */
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/* */
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/* OpenType layout support (specification only). */
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/* */
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/* Copyright 2002, 2004 by */
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/* David Turner, Robert Wilhelm, and Werner Lemberg. */
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/* */
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/* This file is part of the FreeType project, and may only be used, */
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/* modified, and distributed under the terms of the FreeType project */
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/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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/* this file you indicate that you have read the license and */
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/* understand and accept it fully. */
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/* */
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/***************************************************************************/
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#ifndef __OT_LAYOUT_H__
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#define __OT_LAYOUT_H__
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#include "otlconf.h"
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OTL_BEGIN_HEADER
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/************************************************************************/
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/************************************************************************/
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/***** *****/
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/***** BASE DATA TYPES *****/
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/***** *****/
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/************************************************************************/
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/************************************************************************/
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typedef unsigned char OTL_Byte;
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typedef const OTL_Byte* OTL_Bytes;
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typedef int OTL_Error;
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typedef void* OTL_Pointer;
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typedef unsigned char OTL_Bool;
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typedef signed int OTL_Int;
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typedef unsigned int OTL_UInt;
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typedef signed long OTL_Long;
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typedef unsigned long OTL_ULong;
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typedef signed short OTL_Int16;
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typedef unsigned short OTL_UInt16;
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#if OTL_SIZEOF_INT == 4
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typedef signed int OTL_Int32;
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typedef unsigned int OTL_UInt32;
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#elif OTL_SIZEOF_LONG == 4
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typedef signed long OTL_Int32;
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typedef unsigned long OTL_UInt32;
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#else
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# error "no 32-bits type found"
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#endif
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typedef OTL_UInt32 OTL_Tag;
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/************************************************************************/
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/************************************************************************/
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/***** *****/
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/***** ERROR CODES *****/
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/***** *****/
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/************************************************************************/
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/************************************************************************/
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enum
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{
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OTL_Err_Ok = 0,
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OTL_Err_InvalidFormat,
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OTL_Err_InvalidSize,
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OTL_Err_InvalidData,
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OTL_Err_InvalidOffset,
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OTL_Err_Max
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};
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/************************************************************************/
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/************************************************************************/
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/***** *****/
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/***** MEMORY MANAGEMENT *****/
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/***** *****/
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/************************************************************************/
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/************************************************************************/
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typedef OTL_Pointer (*OTL_AllocFunc)( OTL_ULong size,
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OTL_Pointer data );
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typedef OTL_Pointer (*OTL_ReallocFunc)( OTL_Pointer block,
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OTL_ULong size,
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OTL_Pointer data );
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typedef void (*OTL_FreeFunc)( OTL_Pointer block,
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OTL_Pointer data );
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typedef struct OTL_MemoryRec_
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{
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OTL_Pointer mem_data;
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OTL_AllocFunc mem_alloc;
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OTL_ReallocFunc mem_realloc;
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OTL_FreeFunc mem_free;
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} OTL_MemoryRec, *OTL_Memory;
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/************************************************************************/
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/************************************************************************/
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/***** *****/
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/***** ENUMERATIONS *****/
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/***** *****/
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/************************************************************************/
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/************************************************************************/
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/* re-define OTL_MAKE_TAG to something different if you're not */
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/* using an ASCII-based character set (Vaxes anyone ?) */
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#ifndef OTL_MAKE_TAG
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#define OTL_MAKE_TAG(c1,c2,c3,c4) \
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( ( (OTL_UInt32)(c1) << 24 ) | \
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( (OTL_UInt32)(c2) << 16 ) | \
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( (OTL_UInt32)(c3) << 8 ) | \
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( (OTL_UInt32)(c4) ) )
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#endif
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typedef enum OTL_ScriptTag_
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{
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OTL_SCRIPT_NONE = 0,
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#define OTL_SCRIPT_TAG(c1,c2,c3,c4,s,n) OTL_SCRIPT_TAG_ ## n = OTL_MAKE_TAG(c1,c2,c3,c4),
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#include "otltags.h"
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OTL_SCRIPT_MAX
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} OTL_ScriptTag;
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typedef enum OTL_LangTag_
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{
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OTL_LANG_DEFAULT = 0,
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#define OTL_LANG_TAG(c1,c2,c3,c4,s,n) OTL_LANG_TAG_ ## n = OTL_MAKE_TAG(c1,c2,c3,c4),
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#include "otltags.h"
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OTL_LANG_MAX
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} OTL_LangTag;
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/************************************************************************/
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/************************************************************************/
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/***** *****/
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/***** MEMORY READS *****/
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/***** *****/
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/************************************************************************/
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/************************************************************************/
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#define OTL_PEEK_USHORT(p) ( ((OTL_UInt)((p)[0]) << 8) | \
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((OTL_UInt)((p)[1]) ) )
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#define OTL_PEEK_ULONG(p) ( ((OTL_UInt32)((p)[0]) << 24) | \
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((OTL_UInt32)((p)[1]) << 16) | \
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((OTL_UInt32)((p)[2]) << 8) | \
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((OTL_UInt32)((p)[3]) ) )
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#define OTL_PEEK_SHORT(p) ((OTL_Int16)OTL_PEEK_USHORT(p))
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#define OTL_PEEK_LONG(p) ((OTL_Int32)OTL_PEEK_ULONG(p))
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#define OTL_NEXT_USHORT(p) ( (p) += 2, OTL_PEEK_USHORT((p)-2) )
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#define OTL_NEXT_ULONG(p) ( (p) += 4, OTL_PEEK_ULONG((p)-4) )
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#define OTL_NEXT_SHORT(p) ((OTL_Int16)OTL_NEXT_USHORT(p))
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#define OTL_NEXT_LONG(p) ((OTL_Int32)OTL_NEXT_ULONG(p))
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/************************************************************************/
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/************************************************************************/
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/***** *****/
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/***** VALIDATION *****/
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/***** *****/
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/************************************************************************/
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/************************************************************************/
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typedef struct OTL_ValidatorRec_* OTL_Validator;
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typedef struct OTL_ValidatorRec_
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{
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OTL_Bytes limit;
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OTL_Bytes base;
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OTL_Error error;
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OTL_jmp_buf jump_buffer;
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} OTL_ValidatorRec;
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typedef void (*OTL_ValidateFunc)( OTL_Bytes table,
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OTL_UInt lookup_count,
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OTL_UInt glyph_count,
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OTL_Validator valid );
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OTL_API( void )
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otl_validator_error( OTL_Validator validator,
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OTL_Error error );
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#define OTL_INVALID(e) otl_validator_error( valid, e )
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#define OTL_INVALID_TOO_SHORT OTL_INVALID( OTL_Err_InvalidSize )
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#define OTL_INVALID_DATA OTL_INVALID( OTL_Err_InvalidData )
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#define OTL_INVALID_FORMAT OTL_INVALID( OTL_Err_InvalidFormat )
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#define OTL_CHECK(_count) OTL_BEGIN_STMNT \
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if ( p + (_count) > valid->limit ) \
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OTL_INVALID_TOO_SHORT; \
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OTL_END_STMNT
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/* */
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OTL_END_HEADER
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#endif /* __OT_LAYOUT_H__ */
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/* END */
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