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 <freetype/internal/services/svcfftl.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 */