1 /***************************************************************************
2 * Copyright (c) 2024 Microsoft Corporation
3 *
4 * This program and the accompanying materials are made available under the
5 * terms of the MIT License which is available at
6 * https://opensource.org/licenses/MIT.
7 *
8 * SPDX-License-Identifier: MIT
9 **************************************************************************/
10
11
12 /**************************************************************************/
13 /**************************************************************************/
14 /** */
15 /** GUIX Component */
16 /** */
17 /** Utility (Utility) */
18 /** */
19 /**************************************************************************/
20
21 #define GX_SOURCE_CODE
22
23
24 /* Include necessary system files. */
25
26 #include "gx_api.h"
27 #include "gx_utility.h"
28
29 /**************************************************************************/
30 /* */
31 /* FUNCTION RELEASE */
32 /* */
33 /* _gx_utility_math_cos_5_4_0 PORTABLE C */
34 /* 6.1 */
35 /* AUTHOR */
36 /* */
37 /* Kenneth Maxwell, Microsoft Corporation */
38 /* */
39 /* DESCRIPTION */
40 /* */
41 /* This service computes the cosine of the supplied angle, which is an */
42 /* old version of _gx_utility_math_cos. */
43 /* */
44 /* INPUT */
45 /* */
46 /* angle Angle to compute cosine of, */
47 /* the input angle should be */
48 /* scaled by 256. */
49 /* */
50 /* OUTPUT */
51 /* */
52 /* cosine Cosine of supplied angle */
53 /* */
54 /* CALLS */
55 /* */
56 /* _gx_utility_math_sin_5_4_0 */
57 /* */
58 /* CALLED BY */
59 /* */
60 /* Application Code */
61 /* */
62 /* RELEASE HISTORY */
63 /* */
64 /* DATE NAME DESCRIPTION */
65 /* */
66 /* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
67 /* 09-30-2020 Kenneth Maxwell Modified comment(s), */
68 /* resulting in version 6.1 */
69 /* */
70 /**************************************************************************/
71 #if defined(GUIX_5_4_0_COMPATIBILITY)
_gx_utility_math_cos_5_4_0(INT angle)72 INT _gx_utility_math_cos_5_4_0(INT angle)
73 {
74
75 return _gx_utility_math_sin_5_4_0(angle + 23040);
76 }
77 #endif
78
79 /**************************************************************************/
80 /* */
81 /* FUNCTION RELEASE */
82 /* */
83 /* _gx_utility_math_cos PORTABLE C */
84 /* 6.1 */
85 /* AUTHOR */
86 /* */
87 /* Kenneth Maxwell, Microsoft Corporation */
88 /* */
89 /* DESCRIPTION */
90 /* */
91 /* This service computes the cosine of the supplied angle. */
92 /* */
93 /* INPUT */
94 /* */
95 /* angle Angle to compute cosine of. */
96 /* The input angle is a fixed */
97 /* point data type, call */
98 /* GX_FIXED_VAL_MAKE to covnert */
99 /* from INT to fixed point data. */
100 /* type. */
101 /* */
102 /* OUTPUT */
103 /* */
104 /* cosine Cosine of supplied angle. */
105 /* The return consin is a fixed */
106 /* point math data type, call */
107 /* GX_FIXED_VAL_TO_INT to convert*/
108 /* from fixed point data type to */
109 /* int. */
110 /* */
111 /* CALLS */
112 /* */
113 /* _gx_utility_math_sin */
114 /* */
115 /* CALLED BY */
116 /* */
117 /* Application Code */
118 /* */
119 /* RELEASE HISTORY */
120 /* */
121 /* DATE NAME DESCRIPTION */
122 /* */
123 /* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
124 /* 09-30-2020 Kenneth Maxwell Modified comment(s), */
125 /* resulting in version 6.1 */
126 /* */
127 /**************************************************************************/
_gx_utility_math_cos(GX_FIXED_VAL angle)128 GX_FIXED_VAL _gx_utility_math_cos(GX_FIXED_VAL angle)
129 {
130
131 return _gx_utility_math_sin(angle + GX_FIXED_VAL_MAKE(90));
132 }
133
134
