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/****************************************************************************
*
* svmm.h
*
* The FreeType Multiple Masters and GX var services (specification).
*
* Copyright (C) 2003-2022 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 SVMM_H_
#define SVMM_H_
#include <freetype/internal/ftserv.h>
FT_BEGIN_HEADER
/*
* A service used to manage multiple-masters data in a given face.
*
* See the related APIs in `ftmm.h' (FT_MULTIPLE_MASTERS_H).
*
*/
#define FT_SERVICE_ID_MULTI_MASTERS "multi-masters"
typedef FT_Error
(*FT_Get_MM_Func)( FT_Face face,
FT_Multi_Master* master );
typedef FT_Error
(*FT_Get_MM_Var_Func)( FT_Face face,
FT_MM_Var* *master );
typedef FT_Error
(*FT_Set_MM_Design_Func)( FT_Face face,
FT_UInt num_coords,
FT_Long* coords );
/* use return value -1 to indicate that the new coordinates */
/* are equal to the current ones; no changes are thus needed */
typedef FT_Error
(*FT_Set_Var_Design_Func)( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
/* use return value -1 to indicate that the new coordinates */
/* are equal to the current ones; no changes are thus needed */
typedef FT_Error
(*FT_Set_MM_Blend_Func)( FT_Face face,
FT_UInt num_coords,
FT_Long* coords );
typedef FT_Error
(*FT_Get_Var_Design_Func)( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
typedef FT_Error
(*FT_Set_Instance_Func)( FT_Face face,
FT_UInt instance_index );
typedef FT_Error
(*FT_Get_MM_Blend_Func)( FT_Face face,
FT_UInt num_coords,
FT_Long* coords );
typedef FT_Error
(*FT_Get_Var_Blend_Func)( FT_Face face,
FT_UInt *num_coords,
FT_Fixed* *coords,
FT_Fixed* *normalizedcoords,
FT_MM_Var* *mm_var );
typedef void
(*FT_Done_Blend_Func)( FT_Face );
typedef FT_Error
(*FT_Set_MM_WeightVector_Func)( FT_Face face,
FT_UInt len,
FT_Fixed* weight_vector );
typedef FT_Error
(*FT_Get_MM_WeightVector_Func)( FT_Face face,
FT_UInt* len,
FT_Fixed* weight_vector );
FT_DEFINE_SERVICE( MultiMasters )
{
FT_Get_MM_Func get_mm;
FT_Set_MM_Design_Func set_mm_design;
FT_Set_MM_Blend_Func set_mm_blend;
FT_Get_MM_Blend_Func get_mm_blend;
FT_Get_MM_Var_Func get_mm_var;
FT_Set_Var_Design_Func set_var_design;
FT_Get_Var_Design_Func get_var_design;
FT_Set_Instance_Func set_instance;
FT_Set_MM_WeightVector_Func set_mm_weightvector;
FT_Get_MM_WeightVector_Func get_mm_weightvector;
/* for internal use; only needed for code sharing between modules */
FT_Get_Var_Blend_Func get_var_blend;
FT_Done_Blend_Func done_blend;
};
#define FT_DEFINE_SERVICE_MULTIMASTERSREC( class_, \
get_mm_, \
set_mm_design_, \
set_mm_blend_, \
get_mm_blend_, \
get_mm_var_, \
set_var_design_, \
get_var_design_, \
set_instance_, \
set_weightvector_, \
get_weightvector_, \
get_var_blend_, \
done_blend_ ) \
static const FT_Service_MultiMastersRec class_ = \
{ \
get_mm_, \
set_mm_design_, \
set_mm_blend_, \
get_mm_blend_, \
get_mm_var_, \
set_var_design_, \
get_var_design_, \
set_instance_, \
set_weightvector_, \
get_weightvector_, \
get_var_blend_, \
done_blend_ \
};
/* */
FT_END_HEADER
#endif /* SVMM_H_ */
/* END */
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