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1 /****************************************************************************
2  *
3  * psfont.h
4  *
5  *   Adobe's code for font instances (specification).
6  *
7  * Copyright 2007-2013 Adobe Systems Incorporated.
8  *
9  * This software, and all works of authorship, whether in source or
10  * object code form as indicated by the copyright notice(s) included
11  * herein (collectively, the "Work") is made available, and may only be
12  * used, modified, and distributed under the FreeType Project License,
13  * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
14  * FreeType Project License, each contributor to the Work hereby grants
15  * to any individual or legal entity exercising permissions granted by
16  * the FreeType Project License and this section (hereafter, "You" or
17  * "Your") a perpetual, worldwide, non-exclusive, no-charge,
18  * royalty-free, irrevocable (except as stated in this section) patent
19  * license to make, have made, use, offer to sell, sell, import, and
20  * otherwise transfer the Work, where such license applies only to those
21  * patent claims licensable by such contributor that are necessarily
22  * infringed by their contribution(s) alone or by combination of their
23  * contribution(s) with the Work to which such contribution(s) was
24  * submitted.  If You institute patent litigation against any entity
25  * (including a cross-claim or counterclaim in a lawsuit) alleging that
26  * the Work or a contribution incorporated within the Work constitutes
27  * direct or contributory patent infringement, then any patent licenses
28  * granted to You under this License for that Work shall terminate as of
29  * the date such litigation is filed.
30  *
31  * By using, modifying, or distributing the Work you indicate that you
32  * have read and understood the terms and conditions of the
33  * FreeType Project License as well as those provided in this section,
34  * and you accept them fully.
35  *
36  */
37 
38 
39 #ifndef PSFONT_H_
40 #define PSFONT_H_
41 
42 
43 #include FT_SERVICE_CFF_TABLE_LOAD_H
44 
45 #include "psft.h"
46 #include "psblues.h"
47 
48 
49 FT_BEGIN_HEADER
50 
51 
52 #define CF2_OPERAND_STACK_SIZE  48
53 #define CF2_MAX_SUBR            16 /* maximum subroutine nesting;         */
54                                    /* only 10 are allowed but there exist */
55                                    /* fonts like `HiraKakuProN-W3.ttf'    */
56                                    /* (Hiragino Kaku Gothic ProN W3;      */
57                                    /* 8.2d6e1; 2014-12-19) that exceed    */
58                                    /* this limit                          */
59 #define CF2_STORAGE_SIZE        32
60 
61 
62   /* typedef is in `cf2glue.h' */
63   struct  CF2_FontRec_
64   {
65     FT_Memory  memory;
66     FT_Error   error;     /* shared error for this instance */
67 
68     FT_Bool             isT1;
69     FT_Bool             isCFF2;
70     CF2_RenderingFlags  renderingFlags;
71 
72     /* variables that depend on Transform:  */
73     /* the following have zero translation; */
74     /* inner * outer = font * original      */
75 
76     CF2_Matrix  currentTransform;  /* original client matrix           */
77     CF2_Matrix  innerTransform;    /* for hinting; erect, scaled       */
78     CF2_Matrix  outerTransform;    /* post hinting; includes rotations */
79     CF2_Fixed   ppem;              /* transform-dependent              */
80 
81     /* variation data */
82     CFF_BlendRec  blend;            /* cached charstring blend vector  */
83     CF2_UInt      vsindex;          /* current vsindex                 */
84     CF2_UInt      lenNDV;           /* current length NDV or zero      */
85     FT_Fixed*     NDV;              /* ptr to current NDV or NULL      */
86 
87     CF2_Int  unitsPerEm;
88 
89     CF2_Fixed  syntheticEmboldeningAmountX;   /* character space units */
90     CF2_Fixed  syntheticEmboldeningAmountY;   /* character space units */
91 
92     /* FreeType related members */
93     CF2_OutlineRec  outline;       /* freetype glyph outline functions */
94     PS_Decoder*     decoder;
95     CFF_SubFont     lastSubfont;              /* FreeType parsed data; */
96                                               /* top font or subfont   */
97 
98     /* these flags can vary from one call to the next */
99     FT_Bool  hinted;
100     FT_Bool  darkened;       /* true if stemDarkened or synthetic bold */
101                              /* i.e. darkenX != 0 || darkenY != 0      */
102     FT_Bool  stemDarkened;
103 
104     FT_Int  darkenParams[8];              /* 1000 unit character space */
105 
106     /* variables that depend on both FontDict and Transform */
107     CF2_Fixed  stdVW;     /* in character space; depends on dict entry */
108     CF2_Fixed  stdHW;     /* in character space; depends on dict entry */
109     CF2_Fixed  darkenX;                    /* character space units    */
110     CF2_Fixed  darkenY;                    /* depends on transform     */
111                                            /* and private dict (StdVW) */
112     FT_Bool  reverseWinding;               /* darken assuming          */
113                                            /* counterclockwise winding */
114 
115     CF2_BluesRec  blues;                         /* computed zone data */
116 
117     FT_Service_CFFLoad  cffload;           /* pointer to cff functions */
118   };
119 
120 
121   FT_LOCAL( FT_Error )
122   cf2_getGlyphOutline( CF2_Font           font,
123                        CF2_Buffer         charstring,
124                        const CF2_Matrix*  transform,
125                        CF2_F16Dot16*      glyphWidth );
126 
127 
128 FT_END_HEADER
129 
130 
131 #endif /* PSFONT_H_ */
132 
133 
134 /* END */
135