1 /****************************************************************************
2 *
3 * psglue.h
4 *
5 * Adobe's code for shared stuff (specification only).
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 PSGLUE_H_
40 #define PSGLUE_H_
41
42
43 /* common includes for other modules */
44 #include "pserror.h"
45 #include "psfixed.h"
46 #include "psarrst.h"
47 #include "psread.h"
48
49
50 FT_BEGIN_HEADER
51
52
53 /* rendering parameters */
54
55 /* apply hints to rendered glyphs */
56 #define CF2_FlagsHinted 1
57 /* for testing */
58 #define CF2_FlagsDarkened 2
59
60 /* type for holding the flags */
61 typedef CF2_Int CF2_RenderingFlags;
62
63
64 /* elements of a glyph outline */
65 typedef enum CF2_PathOp_
66 {
67 CF2_PathOpMoveTo = 1, /* change the current point */
68 CF2_PathOpLineTo = 2, /* line */
69 CF2_PathOpQuadTo = 3, /* quadratic curve */
70 CF2_PathOpCubeTo = 4 /* cubic curve */
71
72 } CF2_PathOp;
73
74
75 /* a matrix of fixed point values */
76 typedef struct CF2_Matrix_
77 {
78 CF2_F16Dot16 a;
79 CF2_F16Dot16 b;
80 CF2_F16Dot16 c;
81 CF2_F16Dot16 d;
82 CF2_F16Dot16 tx;
83 CF2_F16Dot16 ty;
84
85 } CF2_Matrix;
86
87
88 /* these typedefs are needed by more than one header file */
89 /* and gcc compiler doesn't allow redefinition */
90 typedef struct CF2_FontRec_ CF2_FontRec, *CF2_Font;
91 typedef struct CF2_HintRec_ CF2_HintRec, *CF2_Hint;
92
93
94 /* A common structure for all callback parameters. */
95 /* */
96 /* Some members may be unused. For example, `pt0' is not used for */
97 /* `moveTo' and `pt3' is not used for `quadTo'. The initial point `pt0' */
98 /* is included for each path element for generality; curve conversions */
99 /* need it. The `op' parameter allows one function to handle multiple */
100 /* element types. */
101
102 typedef struct CF2_CallbackParamsRec_
103 {
104 FT_Vector pt0;
105 FT_Vector pt1;
106 FT_Vector pt2;
107 FT_Vector pt3;
108
109 CF2_Int op;
110
111 } CF2_CallbackParamsRec, *CF2_CallbackParams;
112
113
114 /* forward reference */
115 typedef struct CF2_OutlineCallbacksRec_ CF2_OutlineCallbacksRec,
116 *CF2_OutlineCallbacks;
117
118 /* callback function pointers */
119 typedef void
120 (*CF2_Callback_Type)( CF2_OutlineCallbacks callbacks,
121 const CF2_CallbackParams params );
122
123
124 struct CF2_OutlineCallbacksRec_
125 {
126 CF2_Callback_Type moveTo;
127 CF2_Callback_Type lineTo;
128 CF2_Callback_Type quadTo;
129 CF2_Callback_Type cubeTo;
130
131 CF2_Int windingMomentum; /* for winding order detection */
132
133 FT_Memory memory;
134 FT_Error* error;
135 };
136
137
138 FT_END_HEADER
139
140
141 #endif /* PSGLUE_H_ */
142
143
144 /* END */