WebSVN – Kolibri OS – Blame – /contrib/media/updf/me/include/freetype/internal/ftgloadr.h

Rev	Author	Line No.	Line
5496	leency	1	/***************************************************************************/
		2	/* */
		3	/* ftgloadr.h */
		4	/* */
		5	/* The FreeType glyph loader (specification). */
		6	/* */
		7	/* Copyright 2002, 2003, 2005, 2006 by */
		8	/* David Turner, Robert Wilhelm, and Werner Lemberg */
		9	/* */
		10	/* This file is part of the FreeType project, and may only be used, */
		11	/* modified, and distributed under the terms of the FreeType project */
		12	/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
		13	/* this file you indicate that you have read the license and */
		14	/* understand and accept it fully. */
		15	/* */
		16	/***************************************************************************/
		17
		18
		19	#ifndef __FTGLOADR_H__
		20	#define __FTGLOADR_H__
		21
		22
		23	#include
		24	#include FT_FREETYPE_H
		25
		26
		27	FT_BEGIN_HEADER
		28
		29
		30	/*************************************************************************/
		31	/* */
		32	/* */
		33	/* FT_GlyphLoader */
		34	/* */
		35	/* */
		36	/* The glyph loader is an internal object used to load several glyphs */
		37	/* together (for example, in the case of composites). */
		38	/* */
		39	/* */
		40	/* The glyph loader implementation is not part of the high-level API, */
		41	/* hence the forward structure declaration. */
		42	/* */
		43	typedef struct FT_GlyphLoaderRec_* FT_GlyphLoader ;
		44
		45
		46	#if 0 /* moved to freetype.h in version 2.2 */
		47	#define FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS 1
		48	#define FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES 2
		49	#define FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID 4
		50	#define FT_SUBGLYPH_FLAG_SCALE 8
		51	#define FT_SUBGLYPH_FLAG_XY_SCALE 0x40
		52	#define FT_SUBGLYPH_FLAG_2X2 0x80
		53	#define FT_SUBGLYPH_FLAG_USE_MY_METRICS 0x200
		54	#endif
		55
		56
		57	typedef struct FT_SubGlyphRec_
		58	{
		59	FT_Int index;
		60	FT_UShort flags;
		61	FT_Int arg1;
		62	FT_Int arg2;
		63	FT_Matrix transform;
		64
		65	} FT_SubGlyphRec;
		66
		67
		68	typedef struct FT_GlyphLoadRec_
		69	{
		70	FT_Outline outline; /* outline */
		71	FT_Vector* extra_points; /* extra points table */
		72	FT_Vector* extra_points2; /* second extra points table */
		73	FT_UInt num_subglyphs; /* number of subglyphs */
		74	FT_SubGlyph subglyphs; /* subglyphs */
		75
		76	} FT_GlyphLoadRec, *FT_GlyphLoad;
		77
		78
		79	typedef struct FT_GlyphLoaderRec_
		80	{
		81	FT_Memory memory;
		82	FT_UInt max_points;
		83	FT_UInt max_contours;
		84	FT_UInt max_subglyphs;
		85	FT_Bool use_extra;
		86
		87	FT_GlyphLoadRec base;
		88	FT_GlyphLoadRec current;
		89
		90	void* other; /* for possible future extension? */
		91
		92	} FT_GlyphLoaderRec;
		93
		94
		95	/* create new empty glyph loader */
		96	FT_BASE( FT_Error )
		97	FT_GlyphLoader_New( FT_Memory memory,
		98	FT_GlyphLoader *aloader );
		99
		100	/* add an extra points table to a glyph loader */
		101	FT_BASE( FT_Error )
		102	FT_GlyphLoader_CreateExtra( FT_GlyphLoader loader );
		103
		104	/* destroy a glyph loader */
		105	FT_BASE( void )
		106	FT_GlyphLoader_Done( FT_GlyphLoader loader );
		107
		108	/* reset a glyph loader (frees everything int it) */
		109	FT_BASE( void )
		110	FT_GlyphLoader_Reset( FT_GlyphLoader loader );
		111
		112	/* rewind a glyph loader */
		113	FT_BASE( void )
		114	FT_GlyphLoader_Rewind( FT_GlyphLoader loader );
		115
		116	/* check that there is enough space to add `n_points' and `n_contours' */
		117	/* to the glyph loader */
		118	FT_BASE( FT_Error )
		119	FT_GlyphLoader_CheckPoints( FT_GlyphLoader loader,
		120	FT_UInt n_points,
		121	FT_UInt n_contours );
		122
		123
		124	#define FT_GLYPHLOADER_CHECK_P( _loader, _count ) \
		125	( (_count) == 0 \|\| ((_loader)->base.outline.n_points + \
		126	(_loader)->current.outline.n_points + \
		127	(unsigned long)(_count)) <= (_loader)->max_points )
		128
		129	#define FT_GLYPHLOADER_CHECK_C( _loader, _count ) \
		130	( (_count) == 0 \|\| ((_loader)->base.outline.n_contours + \
		131	(_loader)->current.outline.n_contours + \
		132	(unsigned long)(_count)) <= (_loader)->max_contours )
		133
		134	#define FT_GLYPHLOADER_CHECK_POINTS( _loader, _points,_contours ) \
		135	( ( FT_GLYPHLOADER_CHECK_P( _loader, _points ) && \
		136	FT_GLYPHLOADER_CHECK_C( _loader, _contours ) ) \
		137	? 0 \
		138	: FT_GlyphLoader_CheckPoints( (_loader), (_points), (_contours) ) )
		139
		140
		141	/* check that there is enough space to add `n_subs' sub-glyphs to */
		142	/* a glyph loader */
		143	FT_BASE( FT_Error )
		144	FT_GlyphLoader_CheckSubGlyphs( FT_GlyphLoader loader,
		145	FT_UInt n_subs );
		146
		147	/* prepare a glyph loader, i.e. empty the current glyph */
		148	FT_BASE( void )
		149	FT_GlyphLoader_Prepare( FT_GlyphLoader loader );
		150
		151	/* add the current glyph to the base glyph */
		152	FT_BASE( void )
		153	FT_GlyphLoader_Add( FT_GlyphLoader loader );
		154
		155	/* copy points from one glyph loader to another */
		156	FT_BASE( FT_Error )
		157	FT_GlyphLoader_CopyPoints( FT_GlyphLoader target,
		158	FT_GlyphLoader source );
		159
		160	/* */
		161
		162
		163	FT_END_HEADER
		164
		165	#endif /* __FTGLOADR_H__ */
		166
		167
		168	/* END */

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