/**************************************************************************** * * ftglyph.c * * FreeType convenience functions to handle glyphs (body). * * Copyright (C) 1996-2023 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. * */ /************************************************************************** * * This file contains the definition of several convenience functions * that can be used by client applications to easily retrieve glyph * bitmaps and outlines from a given face. * * These functions should be optional if you are writing a font server * or text layout engine on top of FreeType. However, they are pretty * handy for many other simple uses of the library. * */ #include <freetype/internal/ftdebug.h> #include <freetype/ftglyph.h> #include <freetype/ftoutln.h> #include <freetype/ftbitmap.h> #include <freetype/internal/ftobjs.h> #include <freetype/otsvg.h> #include "ftbase.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 … /*************************************************************************/ /*************************************************************************/ /**** ****/ /**** FT_BitmapGlyph support ****/ /**** ****/ /*************************************************************************/ /*************************************************************************/ FT_CALLBACK_DEF( FT_Error ) ft_bitmap_glyph_init( FT_Glyph bitmap_glyph, FT_GlyphSlot slot ) { … } FT_CALLBACK_DEF( FT_Error ) ft_bitmap_glyph_copy( FT_Glyph bitmap_source, FT_Glyph bitmap_target ) { … } FT_CALLBACK_DEF( void ) ft_bitmap_glyph_done( FT_Glyph bitmap_glyph ) { … } FT_CALLBACK_DEF( void ) ft_bitmap_glyph_bbox( FT_Glyph bitmap_glyph, FT_BBox* cbox ) { … } FT_DEFINE_GLYPH( ft_bitmap_glyph_class, sizeof ( FT_BitmapGlyphRec ), FT_GLYPH_FORMAT_BITMAP, ft_bitmap_glyph_init, /* FT_Glyph_InitFunc glyph_init */ ft_bitmap_glyph_done, /* FT_Glyph_DoneFunc glyph_done */ ft_bitmap_glyph_copy, /* FT_Glyph_CopyFunc glyph_copy */ NULL, /* FT_Glyph_TransformFunc glyph_transform */ ft_bitmap_glyph_bbox, /* FT_Glyph_GetBBoxFunc glyph_bbox */ NULL /* FT_Glyph_PrepareFunc glyph_prepare */ ) /*************************************************************************/ /*************************************************************************/ /**** ****/ /**** FT_OutlineGlyph support ****/ /**** ****/ /*************************************************************************/ /*************************************************************************/ FT_CALLBACK_DEF( FT_Error ) ft_outline_glyph_init( FT_Glyph outline_glyph, FT_GlyphSlot slot ) { … } FT_CALLBACK_DEF( void ) ft_outline_glyph_done( FT_Glyph outline_glyph ) { … } FT_CALLBACK_DEF( FT_Error ) ft_outline_glyph_copy( FT_Glyph outline_source, FT_Glyph outline_target ) { … } FT_CALLBACK_DEF( void ) ft_outline_glyph_transform( FT_Glyph outline_glyph, const FT_Matrix* matrix, const FT_Vector* delta ) { … } FT_CALLBACK_DEF( void ) ft_outline_glyph_bbox( FT_Glyph outline_glyph, FT_BBox* bbox ) { … } FT_CALLBACK_DEF( FT_Error ) ft_outline_glyph_prepare( FT_Glyph outline_glyph, FT_GlyphSlot slot ) { … } FT_DEFINE_GLYPH( ft_outline_glyph_class, sizeof ( FT_OutlineGlyphRec ), FT_GLYPH_FORMAT_OUTLINE, ft_outline_glyph_init, /* FT_Glyph_InitFunc glyph_init */ ft_outline_glyph_done, /* FT_Glyph_DoneFunc glyph_done */ ft_outline_glyph_copy, /* FT_Glyph_CopyFunc glyph_copy */ ft_outline_glyph_transform, /* FT_Glyph_TransformFunc glyph_transform */ ft_outline_glyph_bbox, /* FT_Glyph_GetBBoxFunc glyph_bbox */ ft_outline_glyph_prepare /* FT_Glyph_PrepareFunc glyph_prepare */ ) #ifdef FT_CONFIG_OPTION_SVG /*************************************************************************/ /*************************************************************************/ /**** ****/ /**** FT_SvgGlyph support ****/ /**** ****/ /*************************************************************************/ /*************************************************************************/ FT_CALLBACK_DEF( FT_Error ) ft_svg_glyph_init( FT_Glyph svg_glyph, FT_GlyphSlot slot ) { … } FT_CALLBACK_DEF( void ) ft_svg_glyph_done( FT_Glyph svg_glyph ) { … } FT_CALLBACK_DEF( FT_Error ) ft_svg_glyph_copy( FT_Glyph svg_source, FT_Glyph svg_target ) { … } FT_CALLBACK_DEF( void ) ft_svg_glyph_transform( FT_Glyph svg_glyph, const FT_Matrix* _matrix, const FT_Vector* _delta ) { … } FT_CALLBACK_DEF( FT_Error ) ft_svg_glyph_prepare( FT_Glyph svg_glyph, FT_GlyphSlot slot ) { … } FT_DEFINE_GLYPH( ft_svg_glyph_class, sizeof ( FT_SvgGlyphRec ), FT_GLYPH_FORMAT_SVG, ft_svg_glyph_init, /* FT_Glyph_InitFunc glyph_init */ ft_svg_glyph_done, /* FT_Glyph_DoneFunc glyph_done */ ft_svg_glyph_copy, /* FT_Glyph_CopyFunc glyph_copy */ ft_svg_glyph_transform, /* FT_Glyph_TransformFunc glyph_transform */ NULL, /* FT_Glyph_GetBBoxFunc glyph_bbox */ ft_svg_glyph_prepare /* FT_Glyph_PrepareFunc glyph_prepare */ ) #endif /* FT_CONFIG_OPTION_SVG */ /*************************************************************************/ /*************************************************************************/ /**** ****/ /**** FT_Glyph class and API ****/ /**** ****/ /*************************************************************************/ /*************************************************************************/ static FT_Error ft_new_glyph( FT_Library library, const FT_Glyph_Class* clazz, FT_Glyph* aglyph ) { … } /* documentation is in ftglyph.h */ FT_EXPORT_DEF( FT_Error ) FT_Glyph_Copy( FT_Glyph source, FT_Glyph *target ) { … } /* documentation is in ftglyph.h */ FT_EXPORT( FT_Error ) FT_New_Glyph( FT_Library library, FT_Glyph_Format format, FT_Glyph *aglyph ) { … } /* documentation is in ftglyph.h */ FT_EXPORT_DEF( FT_Error ) FT_Get_Glyph( FT_GlyphSlot slot, FT_Glyph *aglyph ) { … } /* documentation is in ftglyph.h */ FT_EXPORT_DEF( FT_Error ) FT_Glyph_Transform( FT_Glyph glyph, const FT_Matrix* matrix, const FT_Vector* delta ) { … } /* documentation is in ftglyph.h */ FT_EXPORT_DEF( void ) FT_Glyph_Get_CBox( FT_Glyph glyph, FT_UInt bbox_mode, FT_BBox *acbox ) { … } /* documentation is in ftglyph.h */ FT_EXPORT_DEF( FT_Error ) FT_Glyph_To_Bitmap( FT_Glyph* the_glyph, FT_Render_Mode render_mode, const FT_Vector* origin, FT_Bool destroy ) { … } /* documentation is in ftglyph.h */ FT_EXPORT_DEF( void ) FT_Done_Glyph( FT_Glyph glyph ) { … } /* END */
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