Commit | Line | Data |
---|---|---|
0a46062b | 1 | /* |
ccd7e1c8 | 2 | * float.c |
0a46062b | 3 | * |
ccd7e1c8 | 4 | * BabelTrace - Float Type Converter |
0a46062b | 5 | * |
c054553d | 6 | * Copyright 2010, 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
0a46062b | 7 | * |
ccd7e1c8 MD |
8 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
9 | * of this software and associated documentation files (the "Software"), to deal | |
10 | * in the Software without restriction, including without limitation the rights | |
11 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
12 | * copies of the Software, and to permit persons to whom the Software is | |
13 | * furnished to do so, subject to the following conditions: | |
0a46062b | 14 | * |
ccd7e1c8 MD |
15 | * The above copyright notice and this permission notice shall be included in |
16 | * all copies or substantial portions of the Software. | |
0a46062b MD |
17 | */ |
18 | ||
19 | #include <babeltrace/compiler.h> | |
4c8bfb7e | 20 | #include <babeltrace/format.h> |
0a46062b | 21 | |
c054553d | 22 | static |
f6625916 | 23 | struct definition *_float_definition_new(struct declaration *declaration, |
e1151715 | 24 | struct definition_scope *parent_scope); |
c054553d | 25 | static |
e1151715 | 26 | void _float_definition_free(struct definition *definition); |
c054553d | 27 | |
4c8bfb7e MD |
28 | void float_copy(struct stream_pos *destp, |
29 | const struct format *fdest, | |
30 | struct stream_pos *srcp, | |
31 | const struct format *fsrc, | |
e1151715 | 32 | struct definition *definition) |
0a46062b | 33 | { |
e1151715 MD |
34 | struct definition_float *_float = |
35 | container_of(definition, struct definition_float, p); | |
f6625916 | 36 | struct declaration_float *float_declaration = _float->declaration; |
0a46062b MD |
37 | |
38 | if (fsrc->float_copy == fdest->float_copy) { | |
f6625916 | 39 | fsrc->float_copy(destp, srcp, float_declaration); |
0a46062b MD |
40 | } else { |
41 | double v; | |
42 | ||
f6625916 MD |
43 | v = fsrc->double_read(srcp, float_declaration); |
44 | fdest->double_write(destp, float_declaration, v); | |
0a46062b MD |
45 | } |
46 | } | |
47 | ||
c054553d | 48 | static |
f6625916 | 49 | void _float_declaration_free(struct declaration *declaration) |
90b676d7 | 50 | { |
f6625916 MD |
51 | struct declaration_float *float_declaration = |
52 | container_of(declaration, struct declaration_float, p); | |
c054553d | 53 | |
f6625916 MD |
54 | declaration_unref(&float_declaration->exp->p); |
55 | declaration_unref(&float_declaration->mantissa->p); | |
56 | declaration_unref(&float_declaration->sign->p); | |
57 | g_free(float_declaration); | |
90b676d7 MD |
58 | } |
59 | ||
f6625916 MD |
60 | struct declaration_float * |
61 | float_declaration_new(const char *name, size_t mantissa_len, | |
e19c3d69 | 62 | size_t exp_len, int byte_order, size_t alignment) |
0a46062b | 63 | { |
f6625916 MD |
64 | struct declaration_float *float_declaration; |
65 | struct declaration *declaration; | |
0a46062b | 66 | |
f6625916 MD |
67 | float_declaration = g_new(struct declaration_float, 1); |
68 | declaration = &float_declaration->p; | |
69 | declaration->id = CTF_TYPE_FLOAT; | |
70 | declaration->name = g_quark_from_string(name); | |
71 | declaration->alignment = alignment; | |
72 | declaration->copy = float_copy; | |
73 | declaration->declaration_free = _float_declaration_free; | |
74 | declaration->definition_new = _float_definition_new; | |
75 | declaration->definition_free = _float_definition_free; | |
76 | declaration->ref = 1; | |
77 | float_declaration->byte_order = byte_order; | |
e19c3d69 | 78 | |
f6625916 | 79 | float_declaration->sign = integer_declaration_new(NULL, 1, |
e19c3d69 | 80 | byte_order, false, 1); |
f6625916 | 81 | float_declaration->mantissa = integer_declaration_new(NULL, mantissa_len - 1, |
e19c3d69 | 82 | byte_order, false, 1); |
f6625916 | 83 | float_declaration->exp = integer_declaration_new(NULL, exp_len, |
e19c3d69 | 84 | byte_order, true, 1); |
f6625916 | 85 | return float_declaration; |
0a46062b | 86 | } |
c054553d MD |
87 | |
88 | static | |
e1151715 | 89 | struct definition * |
f6625916 | 90 | _float_definition_new(struct declaration *declaration, |
e1151715 | 91 | struct definition_scope *parent_scope) |
c054553d | 92 | { |
f6625916 MD |
93 | struct declaration_float *float_declaration = |
94 | container_of(declaration, struct declaration_float, p); | |
e1151715 | 95 | struct definition_float *_float; |
c054553d | 96 | |
e1151715 | 97 | _float = g_new(struct definition_float, 1); |
f6625916 MD |
98 | declaration_ref(&float_declaration->p); |
99 | _float->p.declaration= declaration; | |
100 | _float->declaration= float_declaration; | |
c054553d MD |
101 | _float->p.ref = 1; |
102 | _float->value = 0.0; | |
103 | return &_float->p; | |
104 | } | |
105 | ||
106 | static | |
e1151715 | 107 | void _float_definition_free(struct definition *definition) |
c054553d | 108 | { |
e1151715 MD |
109 | struct definition_float *_float = |
110 | container_of(definition, struct definition_float, p); | |
c054553d | 111 | |
f6625916 | 112 | declaration_unref(_float->p.declaration); |
c054553d MD |
113 | g_free(_float); |
114 | } |