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0142d376 | 1 | /* Copyright (C) 1995,1996,1997,1998,2000,2001,2002,2003,2004, 2005, 2006, 2009, 2010 Free Software Foundation, Inc. |
476b894c AW |
2 | * |
3 | * This library is free software; you can redistribute it and/or | |
4 | * modify it under the terms of the GNU Lesser General Public License | |
5 | * as published by the Free Software Foundation; either version 3 of | |
6 | * the License, or (at your option) any later version. | |
7 | * | |
8 | * This library is distributed in the hope that it will be useful, but | |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
11 | * Lesser General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU Lesser General Public | |
14 | * License along with this library; if not, write to the Free Software | |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
16 | * 02110-1301 USA | |
17 | */ | |
18 | ||
19 | ||
20 | \f | |
21 | ||
22 | #ifdef HAVE_CONFIG_H | |
23 | # include <config.h> | |
24 | #endif | |
25 | ||
476b894c AW |
26 | #include "libguile/_scm.h" |
27 | #include "libguile/__scm.h" | |
28 | ||
29 | #include "libguile/uniform.h" | |
30 | ||
31 | ||
32 | const size_t scm_i_array_element_type_sizes[SCM_ARRAY_ELEMENT_TYPE_LAST + 1] = { | |
33 | 0, | |
34 | 0, | |
35 | 1, | |
36 | 8, | |
37 | 8, 8, | |
38 | 16, 16, | |
39 | 32, 32, | |
40 | 64, 64, | |
41 | 32, 64, | |
42 | 64, 128 | |
43 | }; | |
44 | ||
476b894c AW |
45 | size_t |
46 | scm_array_handle_uniform_element_size (scm_t_array_handle *h) | |
47 | { | |
48 | size_t ret = scm_i_array_element_type_sizes[h->element_type]; | |
49 | if (ret && ret % 8 == 0) | |
50 | return ret / 8; | |
f5a51cae AW |
51 | else if (ret) |
52 | scm_wrong_type_arg_msg (NULL, 0, h->array, "byte-aligned uniform array"); | |
53 | else | |
54 | scm_wrong_type_arg_msg (NULL, 0, h->array, "uniform array"); | |
55 | } | |
56 | ||
57 | size_t | |
58 | scm_array_handle_uniform_element_bit_size (scm_t_array_handle *h) | |
59 | { | |
60 | size_t ret = scm_i_array_element_type_sizes[h->element_type]; | |
61 | if (ret) | |
62 | return ret; | |
476b894c AW |
63 | else |
64 | scm_wrong_type_arg_msg (NULL, 0, h->array, "uniform array"); | |
65 | } | |
66 | ||
67 | const void * | |
68 | scm_array_handle_uniform_elements (scm_t_array_handle *h) | |
69 | { | |
70 | return scm_array_handle_uniform_writable_elements (h); | |
71 | } | |
72 | ||
73 | void * | |
74 | scm_array_handle_uniform_writable_elements (scm_t_array_handle *h) | |
75 | { | |
76 | size_t esize; | |
77 | scm_t_uint8 *ret; | |
78 | ||
79 | esize = scm_array_handle_uniform_element_size (h); | |
80 | ret = ((scm_t_uint8*) h->writable_elements) + h->base * esize; | |
81 | return ret; | |
82 | } | |
83 | ||
84 | int | |
85 | scm_is_uniform_vector (SCM obj) | |
86 | { | |
87 | scm_t_array_handle h; | |
88 | int ret = 0; | |
89 | ||
90 | if (scm_is_generalized_vector (obj)) | |
91 | { | |
92 | scm_generalized_vector_get_handle (obj, &h); | |
93 | ret = SCM_ARRAY_ELEMENT_TYPE_IS_UNBOXED (h.element_type); | |
94 | scm_array_handle_release (&h); | |
95 | } | |
96 | return ret; | |
97 | } | |
98 | ||
99 | size_t | |
100 | scm_c_uniform_vector_length (SCM uvec) | |
101 | { | |
0142d376 AW |
102 | if (!scm_is_uniform_vector (uvec)) |
103 | scm_wrong_type_arg_msg ("uniform-vector-length", 1, uvec, | |
104 | "uniform vector"); | |
105 | ||
106 | return scm_c_generalized_vector_length (uvec); | |
476b894c AW |
107 | } |
108 | ||
109 | SCM_DEFINE (scm_uniform_vector_p, "uniform-vector?", 1, 0, 0, | |
110 | (SCM obj), | |
111 | "Return @code{#t} if @var{obj} is a uniform vector.") | |
112 | #define FUNC_NAME s_scm_uniform_vector_p | |
113 | { | |
114 | return scm_from_bool (scm_is_uniform_vector (obj)); | |
115 | } | |
116 | #undef FUNC_NAME | |
117 | ||
118 | SCM_DEFINE (scm_uniform_vector_element_type, "uniform-vector-element-type", 1, 0, 0, | |
119 | (SCM v), | |
f5a51cae | 120 | "Return the type of the elements in the uniform vector, @var{v}.") |
476b894c AW |
121 | #define FUNC_NAME s_scm_uniform_vector_element_type |
122 | { | |
123 | scm_t_array_handle h; | |
476b894c | 124 | SCM ret; |
f5a51cae AW |
125 | |
126 | if (!scm_is_uniform_vector (v)) | |
127 | scm_wrong_type_arg_msg (FUNC_NAME, SCM_ARG1, v, "uniform vector"); | |
128 | scm_array_get_handle (v, &h); | |
476b894c AW |
129 | ret = scm_array_handle_element_type (&h); |
130 | scm_array_handle_release (&h); | |
131 | return ret; | |
132 | } | |
133 | #undef FUNC_NAME | |
134 | ||
135 | SCM_DEFINE (scm_uniform_vector_element_size, "uniform-vector-element-size", 1, 0, 0, | |
136 | (SCM v), | |
137 | "Return the number of bytes allocated to each element in the\n" | |
138 | "uniform vector, @var{v}.") | |
139 | #define FUNC_NAME s_scm_uniform_vector_element_size | |
140 | { | |
141 | scm_t_array_handle h; | |
142 | size_t len; | |
143 | ssize_t inc; | |
144 | SCM ret; | |
145 | scm_uniform_vector_elements (v, &h, &len, &inc); | |
146 | ret = scm_from_size_t (scm_array_handle_uniform_element_size (&h)); | |
147 | scm_array_handle_release (&h); | |
148 | return ret; | |
149 | } | |
150 | #undef FUNC_NAME | |
151 | ||
152 | SCM | |
153 | scm_c_uniform_vector_ref (SCM v, size_t idx) | |
154 | { | |
f5a51cae AW |
155 | if (!scm_is_uniform_vector (v)) |
156 | scm_wrong_type_arg_msg (NULL, 0, v, "uniform vector"); | |
157 | return scm_c_generalized_vector_ref (v, idx); | |
476b894c AW |
158 | } |
159 | ||
160 | SCM_DEFINE (scm_uniform_vector_ref, "uniform-vector-ref", 2, 0, 0, | |
161 | (SCM v, SCM idx), | |
162 | "Return the element at index @var{idx} of the\n" | |
163 | "homogenous numeric vector @var{v}.") | |
164 | #define FUNC_NAME s_scm_uniform_vector_ref | |
165 | { | |
166 | return scm_c_uniform_vector_ref (v, scm_to_size_t (idx)); | |
167 | } | |
168 | #undef FUNC_NAME | |
169 | ||
170 | void | |
171 | scm_c_uniform_vector_set_x (SCM v, size_t idx, SCM val) | |
172 | { | |
f5a51cae AW |
173 | if (!scm_is_uniform_vector (v)) |
174 | scm_wrong_type_arg_msg (NULL, 0, v, "uniform vector"); | |
175 | scm_c_generalized_vector_set_x (v, idx, val); | |
476b894c AW |
176 | } |
177 | ||
178 | SCM_DEFINE (scm_uniform_vector_set_x, "uniform-vector-set!", 3, 0, 0, | |
179 | (SCM v, SCM idx, SCM val), | |
180 | "Set the element at index @var{idx} of the\n" | |
181 | "homogenous numeric vector @var{v} to @var{val}.") | |
182 | #define FUNC_NAME s_scm_uniform_vector_set_x | |
183 | { | |
184 | scm_c_uniform_vector_set_x (v, scm_to_size_t (idx), val); | |
185 | return SCM_UNSPECIFIED; | |
186 | } | |
187 | #undef FUNC_NAME | |
188 | ||
189 | SCM_DEFINE (scm_uniform_vector_to_list, "uniform-vector->list", 1, 0, 0, | |
190 | (SCM uvec), | |
191 | "Convert the uniform numeric vector @var{uvec} to a list.") | |
192 | #define FUNC_NAME s_scm_uniform_vector_to_list | |
193 | { | |
f5a51cae AW |
194 | if (!scm_is_uniform_vector (uvec)) |
195 | scm_wrong_type_arg_msg (FUNC_NAME, SCM_ARG1, uvec, "uniform vector"); | |
196 | return scm_generalized_vector_to_list (uvec); | |
476b894c AW |
197 | } |
198 | #undef FUNC_NAME | |
199 | ||
200 | const void * | |
201 | scm_uniform_vector_elements (SCM uvec, | |
202 | scm_t_array_handle *h, | |
203 | size_t *lenp, ssize_t *incp) | |
204 | { | |
205 | return scm_uniform_vector_writable_elements (uvec, h, lenp, incp); | |
206 | } | |
207 | ||
208 | void * | |
209 | scm_uniform_vector_writable_elements (SCM uvec, | |
210 | scm_t_array_handle *h, | |
211 | size_t *lenp, ssize_t *incp) | |
212 | { | |
213 | void *ret; | |
214 | scm_generalized_vector_get_handle (uvec, h); | |
215 | /* FIXME nonlocal exit */ | |
216 | ret = scm_array_handle_uniform_writable_elements (h); | |
217 | if (lenp) | |
218 | { | |
219 | scm_t_array_dim *dim = scm_array_handle_dims (h); | |
220 | *lenp = dim->ubnd - dim->lbnd + 1; | |
221 | *incp = dim->inc; | |
222 | } | |
223 | return ret; | |
224 | } | |
225 | ||
226 | SCM_DEFINE (scm_uniform_vector_length, "uniform-vector-length", 1, 0, 0, | |
227 | (SCM v), | |
228 | "Return the number of elements in the uniform vector @var{v}.") | |
229 | #define FUNC_NAME s_scm_uniform_vector_length | |
230 | { | |
231 | return scm_from_size_t (scm_c_uniform_vector_length (v)); | |
232 | } | |
233 | #undef FUNC_NAME | |
234 | ||
235 | ||
236 | void | |
237 | scm_init_uniform (void) | |
238 | { | |
239 | #include "libguile/uniform.x" | |
240 | } | |
241 | ||
242 | /* | |
243 | Local Variables: | |
244 | c-file-style: "gnu" | |
245 | End: | |
246 | */ |