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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 */
145