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/****************************************************************************
*
* svmetric.h
*
* The FreeType services for metrics variations (specification).
*
* Copyright (C) 2016-2020 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 SVMETRIC_H_
#define SVMETRIC_H_
#include <freetype/internal/ftserv.h>
FT_BEGIN_HEADER
/*
* A service to manage the `HVAR, `MVAR', and `VVAR' OpenType tables.
*
*/
#define FT_SERVICE_ID_METRICS_VARIATIONS "metrics-variations"
/* HVAR */
typedef FT_Error
(*FT_HAdvance_Adjust_Func)( FT_Face face,
FT_UInt gindex,
FT_Int *avalue );
typedef FT_Error
(*FT_LSB_Adjust_Func)( FT_Face face,
FT_UInt gindex,
FT_Int *avalue );
typedef FT_Error
(*FT_RSB_Adjust_Func)( FT_Face face,
FT_UInt gindex,
FT_Int *avalue );
/* VVAR */
typedef FT_Error
(*FT_VAdvance_Adjust_Func)( FT_Face face,
FT_UInt gindex,
FT_Int *avalue );
typedef FT_Error
(*FT_TSB_Adjust_Func)( FT_Face face,
FT_UInt gindex,
FT_Int *avalue );
typedef FT_Error
(*FT_BSB_Adjust_Func)( FT_Face face,
FT_UInt gindex,
FT_Int *avalue );
typedef FT_Error
(*FT_VOrg_Adjust_Func)( FT_Face face,
FT_UInt gindex,
FT_Int *avalue );
/* MVAR */
typedef void
(*FT_Metrics_Adjust_Func)( FT_Face face );
FT_DEFINE_SERVICE( MetricsVariations )
{
FT_HAdvance_Adjust_Func hadvance_adjust;
FT_LSB_Adjust_Func lsb_adjust;
FT_RSB_Adjust_Func rsb_adjust;
FT_VAdvance_Adjust_Func vadvance_adjust;
FT_TSB_Adjust_Func tsb_adjust;
FT_BSB_Adjust_Func bsb_adjust;
FT_VOrg_Adjust_Func vorg_adjust;
FT_Metrics_Adjust_Func metrics_adjust;
};
#define FT_DEFINE_SERVICE_METRICSVARIATIONSREC( class_, \
hadvance_adjust_, \
lsb_adjust_, \
rsb_adjust_, \
vadvance_adjust_, \
tsb_adjust_, \
bsb_adjust_, \
vorg_adjust_, \
metrics_adjust_ ) \
static const FT_Service_MetricsVariationsRec class_ = \
{ \
hadvance_adjust_, \
lsb_adjust_, \
rsb_adjust_, \
vadvance_adjust_, \
tsb_adjust_, \
bsb_adjust_, \
vorg_adjust_, \
metrics_adjust_ \
};
/* */
FT_END_HEADER
#endif /* SVMETRIC_H_ */
/* END */
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