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+/***************************************************************************/
+/* */
+/* ftgloadr.h */
+/* */
+/* The FreeType glyph loader (specification). */
+/* */
+/* Copyright 2002-2018 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 FTGLOADR_H_
+#define FTGLOADR_H_
+
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+
+
+FT_BEGIN_HEADER
+
+
+ /*************************************************************************/
+ /* */
+ /* <Struct> */
+ /* FT_GlyphLoader */
+ /* */
+ /* <Description> */
+ /* The glyph loader is an internal object used to load several glyphs */
+ /* together (for example, in the case of composites). */
+ /* */
+ typedef struct FT_SubGlyphRec_
+ {
+ FT_Int index;
+ FT_UShort flags;
+ FT_Int arg1;
+ FT_Int arg2;
+ FT_Matrix transform;
+
+ } FT_SubGlyphRec;
+
+
+ typedef struct FT_GlyphLoadRec_
+ {
+ FT_Outline outline; /* outline */
+ FT_Vector* extra_points; /* extra points table */
+ FT_Vector* extra_points2; /* second extra points table */
+ FT_UInt num_subglyphs; /* number of subglyphs */
+ FT_SubGlyph subglyphs; /* subglyphs */
+
+ } FT_GlyphLoadRec, *FT_GlyphLoad;
+
+
+ typedef struct FT_GlyphLoaderRec_
+ {
+ FT_Memory memory;
+ FT_UInt max_points;
+ FT_UInt max_contours;
+ FT_UInt max_subglyphs;
+ FT_Bool use_extra;
+
+ FT_GlyphLoadRec base;
+ FT_GlyphLoadRec current;
+
+ void* other; /* for possible future extension? */
+
+ } FT_GlyphLoaderRec, *FT_GlyphLoader;
+
+
+ /* create new empty glyph loader */
+ FT_BASE( FT_Error )
+ FT_GlyphLoader_New( FT_Memory memory,
+ FT_GlyphLoader *aloader );
+
+ /* add an extra points table to a glyph loader */
+ FT_BASE( FT_Error )
+ FT_GlyphLoader_CreateExtra( FT_GlyphLoader loader );
+
+ /* destroy a glyph loader */
+ FT_BASE( void )
+ FT_GlyphLoader_Done( FT_GlyphLoader loader );
+
+ /* reset a glyph loader (frees everything int it) */
+ FT_BASE( void )
+ FT_GlyphLoader_Reset( FT_GlyphLoader loader );
+
+ /* rewind a glyph loader */
+ FT_BASE( void )
+ FT_GlyphLoader_Rewind( FT_GlyphLoader loader );
+
+ /* check that there is enough space to add `n_points' and `n_contours' */
+ /* to the glyph loader */
+ FT_BASE( FT_Error )
+ FT_GlyphLoader_CheckPoints( FT_GlyphLoader loader,
+ FT_UInt n_points,
+ FT_UInt n_contours );
+
+
+#define FT_GLYPHLOADER_CHECK_P( _loader, _count ) \
+ ( (_count) == 0 || \
+ ( (FT_UInt)(_loader)->base.outline.n_points + \
+ (FT_UInt)(_loader)->current.outline.n_points + \
+ (FT_UInt)(_count) ) <= (_loader)->max_points )
+
+#define FT_GLYPHLOADER_CHECK_C( _loader, _count ) \
+ ( (_count) == 0 || \
+ ( (FT_UInt)(_loader)->base.outline.n_contours + \
+ (FT_UInt)(_loader)->current.outline.n_contours + \
+ (FT_UInt)(_count) ) <= (_loader)->max_contours )
+
+#define FT_GLYPHLOADER_CHECK_POINTS( _loader, _points, _contours ) \
+ ( ( FT_GLYPHLOADER_CHECK_P( _loader, _points ) && \
+ FT_GLYPHLOADER_CHECK_C( _loader, _contours ) ) \
+ ? 0 \
+ : FT_GlyphLoader_CheckPoints( (_loader), \
+ (FT_UInt)(_points), \
+ (FT_UInt)(_contours) ) )
+
+
+ /* check that there is enough space to add `n_subs' sub-glyphs to */
+ /* a glyph loader */
+ FT_BASE( FT_Error )
+ FT_GlyphLoader_CheckSubGlyphs( FT_GlyphLoader loader,
+ FT_UInt n_subs );
+
+ /* prepare a glyph loader, i.e. empty the current glyph */
+ FT_BASE( void )
+ FT_GlyphLoader_Prepare( FT_GlyphLoader loader );
+
+ /* add the current glyph to the base glyph */
+ FT_BASE( void )
+ FT_GlyphLoader_Add( FT_GlyphLoader loader );
+
+ /* copy points from one glyph loader to another */
+ FT_BASE( FT_Error )
+ FT_GlyphLoader_CopyPoints( FT_GlyphLoader target,
+ FT_GlyphLoader source );
+
+ /* */
+
+
+FT_END_HEADER
+
+#endif /* FTGLOADR_H_ */
+
+
+/* END */