ref: 5f5b44659ebe917405d08f089fce8e641d78ab13
dir: /src/type1z/z1gload.h/
/***************************************************************************/
/* */
/* z1gload.h */
/* */
/* Experimental Type 1 Glyph Loader (specification). */
/* */
/* Copyright 1996-2000 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 Z1GLOAD_H
#define Z1GLOAD_H
#ifdef FT_FLAT_COMPILE
#include "z1objs.h"
#else
#include <type1z/z1objs.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/*************************************************************************/
/* */
/* <Structure> */
/* Z1_Builder */
/* */
/* <Description> */
/* A structure used during glyph loading to store its outline. */
/* */
/* <Fields> */
/* memory :: The current memory object. */
/* */
/* face :: The current face object. */
/* */
/* glyph :: The current glyph slot. */
/* */
/* loader :: The current glyph loader. */
/* */
/* current :: The current glyph outline. */
/* */
/* base :: The base glyph outline. */
/* */
/* last :: The last point position. */
/* */
/* scale_x :: The horizontal scale (FUnits to sub-pixels). */
/* */
/* scale_y :: The vertical scale (FUnits to sub-pixels). */
/* */
/* pos_x :: The horizontal translation (for composite glyphs). */
/* */
/* pos_y :: The vertical translation (for composite glyphs). */
/* */
/* left_bearing :: The left side bearing point. */
/* */
/* advance :: The horizontal advance vector. */
/* */
/* no_recurse :: */
/* */
/* bbox :: The glyph's bounding box. */
/* */
/* path_begun :: A flag which indicates that a new path has begun. */
/* */
/* load_points :: A flag which indicates, if not set, that no points */
/* are loaded. */
/* */
/* error :: The current error code. */
/* */
/* metrics_only :: A flag whether to compute metrics only. */
/* */
typedef struct Z1_Builder_
{
FT_Memory memory;
T1_Face face;
Z1_GlyphSlot glyph;
FT_GlyphLoader* loader;
FT_Outline* current; /* the current glyph outline */
FT_Outline* base; /* the composite glyph outline */
FT_Vector last;
FT_Fixed scale_x;
FT_Fixed scale_y;
FT_Pos pos_x;
FT_Pos pos_y;
FT_Vector left_bearing;
FT_Vector advance;
FT_BBox bbox; /* bounding box */
FT_Bool path_begun;
FT_Bool load_points;
FT_Bool no_recurse;
FT_Error error; /* only used for memory errors */
FT_Bool metrics_only;
} Z1_Builder;
/* execution context charstring zone */
typedef struct Z1_Decoder_Zone_
{
FT_Byte* base;
FT_Byte* limit;
FT_Byte* cursor;
} Z1_Decoder_Zone;
typedef struct Z1_Decoder_
{
Z1_Builder builder;
FT_Int stack[T1_MAX_CHARSTRINGS_OPERANDS];
FT_Int* top;
Z1_Decoder_Zone zones[T1_MAX_SUBRS_CALLS + 1];
Z1_Decoder_Zone* zone;
FT_Int flex_state;
FT_Int num_flex_vectors;
FT_Vector flex_vectors[7];
T1_Blend* blend; /* for multiple masters */
} Z1_Decoder;
LOCAL_DEF
void Z1_Init_Builder( Z1_Builder* builder,
T1_Face face,
Z1_Size size,
Z1_GlyphSlot glyph );
LOCAL_DEF
void Z1_Done_Builder( Z1_Builder* builder );
LOCAL_DEF
void Z1_Init_Decoder( Z1_Decoder* decoder );
LOCAL_DEF
FT_Error Z1_Compute_Max_Advance( T1_Face face,
FT_Int* max_advance );
LOCAL_DEF
FT_Error Z1_Parse_CharStrings( Z1_Decoder* decoder,
FT_Byte* charstring_base,
FT_Int charstring_len,
FT_Int num_subrs,
FT_Byte** subrs_base,
FT_Int* subrs_len );
LOCAL_DEF
FT_Error Z1_Load_Glyph( Z1_GlyphSlot glyph,
Z1_Size size,
FT_Int glyph_index,
FT_Int load_flags );
#ifdef __cplusplus
}
#endif
#endif /* Z1GLOAD_H */
/* END */