So. Some themes have objects that seem to be large natural extensions of the landscape. Masks allow maintaining that. Lemme know if it doesn't look good. If it doesn't, can still use for ice/bounce/indestructible. Indestructible bunker object for example.
/***************************************************************************/
/* */
/* otvcommn.h */
/* */
/* OpenType common tables validation (specification). */
/* */
/* Copyright 2004, 2005, 2007, 2009 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. */
/* */
/***************************************************************************/
#ifndef __OTVCOMMN_H__
#define __OTVCOMMN_H__
#include <ft2build.h>
#include "otvalid.h"
#include FT_INTERNAL_DEBUG_H
FT_BEGIN_HEADER
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** VALIDATION *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
typedef struct OTV_ValidatorRec_* OTV_Validator;
typedef void (*OTV_Validate_Func)( FT_Bytes table,
OTV_Validator valid );
typedef struct OTV_ValidatorRec_
{
FT_Validator root;
FT_UInt type_count;
OTV_Validate_Func* type_funcs;
FT_UInt lookup_count;
FT_UInt glyph_count;
FT_UInt nesting_level;
OTV_Validate_Func func[3];
FT_UInt extra1; /* for passing parameters */
FT_UInt extra2;
FT_Bytes extra3;
#ifdef FT_DEBUG_LEVEL_TRACE
FT_UInt debug_indent;
const FT_String* debug_function_name[3];
#endif
} OTV_ValidatorRec;
#undef FT_INVALID_
#define FT_INVALID_( _prefix, _error ) \
ft_validator_error( valid->root, _prefix ## _error )
#define OTV_OPTIONAL_TABLE( _table ) FT_UShort _table; \
FT_Bytes _table ## _p
#define OTV_OPTIONAL_OFFSET( _offset ) \
FT_BEGIN_STMNT \
_offset ## _p = p; \
_offset = FT_NEXT_USHORT( p ); \
FT_END_STMNT
#define OTV_LIMIT_CHECK( _count ) \
FT_BEGIN_STMNT \
if ( p + (_count) > valid->root->limit ) \
FT_INVALID_TOO_SHORT; \
FT_END_STMNT
#define OTV_SIZE_CHECK( _size ) \
FT_BEGIN_STMNT \
if ( _size > 0 && _size < table_size ) \
{ \
if ( valid->root->level == FT_VALIDATE_PARANOID ) \
FT_INVALID_OFFSET; \
else \
{ \
/* strip off `const' */ \
FT_Byte* pp = (FT_Byte*)_size ## _p; \
\
\
FT_TRACE3(( "\n" \
"Invalid offset to optional table `%s'" \
" set to zero.\n" \
"\n", #_size )); \
\
/* always assume 16bit entities */ \
_size = pp[0] = pp[1] = 0; \
} \
} \
FT_END_STMNT
#define OTV_NAME_(x) #x
#define OTV_NAME(x) OTV_NAME_(x)
#define OTV_FUNC_(x) x##Func
#define OTV_FUNC(x) OTV_FUNC_(x)
#ifdef FT_DEBUG_LEVEL_TRACE
#define OTV_NEST1( x ) \
FT_BEGIN_STMNT \
valid->nesting_level = 0; \
valid->func[0] = OTV_FUNC( x ); \
valid->debug_function_name[0] = OTV_NAME( x ); \
FT_END_STMNT
#define OTV_NEST2( x, y ) \
FT_BEGIN_STMNT \
valid->nesting_level = 0; \
valid->func[0] = OTV_FUNC( x ); \
valid->func[1] = OTV_FUNC( y ); \
valid->debug_function_name[0] = OTV_NAME( x ); \
valid->debug_function_name[1] = OTV_NAME( y ); \
FT_END_STMNT
#define OTV_NEST3( x, y, z ) \
FT_BEGIN_STMNT \
valid->nesting_level = 0; \
valid->func[0] = OTV_FUNC( x ); \
valid->func[1] = OTV_FUNC( y ); \
valid->func[2] = OTV_FUNC( z ); \
valid->debug_function_name[0] = OTV_NAME( x ); \
valid->debug_function_name[1] = OTV_NAME( y ); \
valid->debug_function_name[2] = OTV_NAME( z ); \
FT_END_STMNT
#define OTV_INIT valid->debug_indent = 0
#define OTV_ENTER \
FT_BEGIN_STMNT \
valid->debug_indent += 2; \
FT_TRACE4(( "%*.s", valid->debug_indent, 0 )); \
FT_TRACE4(( "%s table\n", \
valid->debug_function_name[valid->nesting_level] )); \
FT_END_STMNT
#define OTV_NAME_ENTER( name ) \
FT_BEGIN_STMNT \
valid->debug_indent += 2; \
FT_TRACE4(( "%*.s", valid->debug_indent, 0 )); \
FT_TRACE4(( "%s table\n", name )); \
FT_END_STMNT
#define OTV_EXIT valid->debug_indent -= 2
#define OTV_TRACE( s ) \
FT_BEGIN_STMNT \
FT_TRACE4(( "%*.s", valid->debug_indent, 0 )); \
FT_TRACE4( s ); \
FT_END_STMNT
#else /* !FT_DEBUG_LEVEL_TRACE */
#define OTV_NEST1( x ) \
FT_BEGIN_STMNT \
valid->nesting_level = 0; \
valid->func[0] = OTV_FUNC( x ); \
FT_END_STMNT
#define OTV_NEST2( x, y ) \
FT_BEGIN_STMNT \
valid->nesting_level = 0; \
valid->func[0] = OTV_FUNC( x ); \
valid->func[1] = OTV_FUNC( y ); \
FT_END_STMNT
#define OTV_NEST3( x, y, z ) \
FT_BEGIN_STMNT \
valid->nesting_level = 0; \
valid->func[0] = OTV_FUNC( x ); \
valid->func[1] = OTV_FUNC( y ); \
valid->func[2] = OTV_FUNC( z ); \
FT_END_STMNT
#define OTV_INIT do { } while ( 0 )
#define OTV_ENTER do { } while ( 0 )
#define OTV_NAME_ENTER( name ) do { } while ( 0 )
#define OTV_EXIT do { } while ( 0 )
#define OTV_TRACE( s ) do { } while ( 0 )
#endif /* !FT_DEBUG_LEVEL_TRACE */
#define OTV_RUN valid->func[0]
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** COVERAGE TABLE *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
FT_LOCAL( void )
otv_Coverage_validate( FT_Bytes table,
OTV_Validator valid,
FT_Int expected_count );
/* return first covered glyph */
FT_LOCAL( FT_UInt )
otv_Coverage_get_first( FT_Bytes table );
/* return last covered glyph */
FT_LOCAL( FT_UInt )
otv_Coverage_get_last( FT_Bytes table );
/* return number of covered glyphs */
FT_LOCAL( FT_UInt )
otv_Coverage_get_count( FT_Bytes table );
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** CLASS DEFINITION TABLE *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
FT_LOCAL( void )
otv_ClassDef_validate( FT_Bytes table,
OTV_Validator valid );
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** DEVICE TABLE *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
FT_LOCAL( void )
otv_Device_validate( FT_Bytes table,
OTV_Validator valid );
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** LOOKUPS *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
FT_LOCAL( void )
otv_Lookup_validate( FT_Bytes table,
OTV_Validator valid );
FT_LOCAL( void )
otv_LookupList_validate( FT_Bytes table,
OTV_Validator valid );
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** FEATURES *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
FT_LOCAL( void )
otv_Feature_validate( FT_Bytes table,
OTV_Validator valid );
/* lookups must already be validated */
FT_LOCAL( void )
otv_FeatureList_validate( FT_Bytes table,
FT_Bytes lookups,
OTV_Validator valid );
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** LANGUAGE SYSTEM *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
FT_LOCAL( void )
otv_LangSys_validate( FT_Bytes table,
OTV_Validator valid );
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** SCRIPTS *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
FT_LOCAL( void )
otv_Script_validate( FT_Bytes table,
OTV_Validator valid );
/* features must already be validated */
FT_LOCAL( void )
otv_ScriptList_validate( FT_Bytes table,
FT_Bytes features,
OTV_Validator valid );
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** UTILITY FUNCTIONS *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
#define ChainPosClassSetFunc otv_x_Ox
#define ChainPosRuleSetFunc otv_x_Ox
#define ChainSubClassSetFunc otv_x_Ox
#define ChainSubRuleSetFunc otv_x_Ox
#define JstfLangSysFunc otv_x_Ox
#define JstfMaxFunc otv_x_Ox
#define LigGlyphFunc otv_x_Ox
#define LigatureArrayFunc otv_x_Ox
#define LigatureSetFunc otv_x_Ox
#define PosClassSetFunc otv_x_Ox
#define PosRuleSetFunc otv_x_Ox
#define SubClassSetFunc otv_x_Ox
#define SubRuleSetFunc otv_x_Ox
FT_LOCAL( void )
otv_x_Ox ( FT_Bytes table,
OTV_Validator valid );
#define AlternateSubstFormat1Func otv_u_C_x_Ox
#define ChainContextPosFormat1Func otv_u_C_x_Ox
#define ChainContextSubstFormat1Func otv_u_C_x_Ox
#define ContextPosFormat1Func otv_u_C_x_Ox
#define ContextSubstFormat1Func otv_u_C_x_Ox
#define LigatureSubstFormat1Func otv_u_C_x_Ox
#define MultipleSubstFormat1Func otv_u_C_x_Ox
FT_LOCAL( void )
otv_u_C_x_Ox( FT_Bytes table,
OTV_Validator valid );
#define AlternateSetFunc otv_x_ux
#define AttachPointFunc otv_x_ux
#define ExtenderGlyphFunc otv_x_ux
#define JstfGPOSModListFunc otv_x_ux
#define JstfGSUBModListFunc otv_x_ux
#define SequenceFunc otv_x_ux
FT_LOCAL( void )
otv_x_ux( FT_Bytes table,
OTV_Validator valid );
#define PosClassRuleFunc otv_x_y_ux_sy
#define PosRuleFunc otv_x_y_ux_sy
#define SubClassRuleFunc otv_x_y_ux_sy
#define SubRuleFunc otv_x_y_ux_sy
FT_LOCAL( void )
otv_x_y_ux_sy( FT_Bytes table,
OTV_Validator valid );
#define ChainPosClassRuleFunc otv_x_ux_y_uy_z_uz_p_sp
#define ChainPosRuleFunc otv_x_ux_y_uy_z_uz_p_sp
#define ChainSubClassRuleFunc otv_x_ux_y_uy_z_uz_p_sp
#define ChainSubRuleFunc otv_x_ux_y_uy_z_uz_p_sp
FT_LOCAL( void )
otv_x_ux_y_uy_z_uz_p_sp( FT_Bytes table,
OTV_Validator valid );
#define ContextPosFormat2Func otv_u_O_O_x_Onx
#define ContextSubstFormat2Func otv_u_O_O_x_Onx
FT_LOCAL( void )
otv_u_O_O_x_Onx( FT_Bytes table,
OTV_Validator valid );
#define ContextPosFormat3Func otv_u_x_y_Ox_sy
#define ContextSubstFormat3Func otv_u_x_y_Ox_sy
FT_LOCAL( void )
otv_u_x_y_Ox_sy( FT_Bytes table,
OTV_Validator valid );
#define ChainContextPosFormat2Func otv_u_O_O_O_O_x_Onx
#define ChainContextSubstFormat2Func otv_u_O_O_O_O_x_Onx
FT_LOCAL( void )
otv_u_O_O_O_O_x_Onx( FT_Bytes table,
OTV_Validator valid );
#define ChainContextPosFormat3Func otv_u_x_Ox_y_Oy_z_Oz_p_sp
#define ChainContextSubstFormat3Func otv_u_x_Ox_y_Oy_z_Oz_p_sp
FT_LOCAL( void )
otv_u_x_Ox_y_Oy_z_Oz_p_sp( FT_Bytes table,
OTV_Validator valid );
FT_LOCAL( FT_UInt )
otv_GSUBGPOS_get_Lookup_count( FT_Bytes table );
FT_LOCAL( FT_UInt )
otv_GSUBGPOS_have_MarkAttachmentType_flag( FT_Bytes table );
/* */
FT_END_HEADER
#endif /* __OTVCOMMN_H__ */
/* END */