1 /***************************************************************************/
2 /*                                                                         */
3 /*  cf2glue.h                                                              */
4 /*                                                                         */
5 /*    Adobe's code for shared stuff (specification only).                  */
6 /*                                                                         */
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35 /*                                                                         */
36 /***************************************************************************/
37 
38 
39 #ifndef __CF2GLUE_H__
40 #define __CF2GLUE_H__
41 
42 
43 /* common includes for other modules */
44 #include "cf2error.h"
45 #include "cf2fixed.h"
46 #include "cf2arrst.h"
47 #include "cf2read.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 /* __CF2GLUE_H__ */
142 
143 
144 /* END */
145