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f8579182 MV |
1 | /* srfi-4.c --- Homogeneous numeric vector datatypes. |
2 | * | |
3 | * Copyright (C) 2001, 2004 Free Software Foundation, Inc. | |
4 | * | |
5 | * This library is free software; you can redistribute it and/or | |
6 | * modify it under the terms of the GNU Lesser General Public | |
7 | * License as published by the Free Software Foundation; either | |
8 | * version 2.1 of the License, or (at your option) any later version. | |
9 | * | |
10 | * This library is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * Lesser General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU Lesser General Public | |
16 | * License along with this library; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | */ | |
19 | ||
20 | #include <libguile.h> | |
21 | #include <string.h> | |
22 | #include <stdio.h> | |
23 | ||
24 | #include "libguile/srfi-4.h" | |
25 | #include "libguile/error.h" | |
26 | #include "libguile/read.h" | |
27 | #include "libguile/ports.h" | |
28 | #include "libguile/chars.h" | |
29 | ||
30 | /* Smob type code for homogeneous numeric vectors. */ | |
31 | int scm_tc16_uvec = 0; | |
32 | ||
33 | ||
34 | /* Accessor macros for the three components of a homogeneous numeric | |
35 | vector: | |
36 | - The type tag (one of the symbolic constants below). | |
37 | - The vector's length (counted in elements). | |
38 | - The address of the data area (holding the elements of the | |
39 | vector). */ | |
40 | #define SCM_UVEC_TYPE(u) (SCM_CELL_WORD_1(u)) | |
41 | #define SCM_UVEC_LENGTH(u) ((size_t)SCM_CELL_WORD_2(u)) | |
42 | #define SCM_UVEC_BASE(u) ((void *)SCM_CELL_WORD_3(u)) | |
43 | ||
44 | ||
45 | /* Symbolic constants encoding the various types of homogeneous | |
46 | numeric vectors. */ | |
47 | #define SCM_UVEC_U8 0 | |
48 | #define SCM_UVEC_S8 1 | |
49 | #define SCM_UVEC_U16 2 | |
50 | #define SCM_UVEC_S16 3 | |
51 | #define SCM_UVEC_U32 4 | |
52 | #define SCM_UVEC_S32 5 | |
53 | #define SCM_UVEC_U64 6 | |
54 | #define SCM_UVEC_S64 7 | |
55 | #define SCM_UVEC_F32 8 | |
56 | #define SCM_UVEC_F64 9 | |
cbdc8379 MV |
57 | #define SCM_UVEC_C32 10 |
58 | #define SCM_UVEC_C64 11 | |
f8579182 MV |
59 | |
60 | ||
61 | /* This array maps type tags to the size of the elements. */ | |
cbdc8379 | 62 | static const int uvec_sizes[12] = { |
f8579182 MV |
63 | 1, 1, |
64 | 2, 2, | |
65 | 4, 4, | |
66 | 8, 8, | |
cbdc8379 MV |
67 | sizeof(float), sizeof(double), |
68 | 2*sizeof(float), 2*sizeof(double) | |
f8579182 MV |
69 | }; |
70 | ||
cbdc8379 | 71 | static const char *uvec_tags[12] = { |
e0e49670 MV |
72 | "u8", "s8", |
73 | "u16", "s16", | |
74 | "u32", "s32", | |
75 | "u64", "s64", | |
cbdc8379 MV |
76 | "f32", "f64", |
77 | "c32", "c64", | |
e0e49670 MV |
78 | }; |
79 | ||
cbdc8379 | 80 | static const char *uvec_names[12] = { |
f8579182 MV |
81 | "u8vector", "s8vector", |
82 | "u16vector", "s16vector", | |
83 | "u32vector", "s32vector", | |
84 | "u64vector", "s64vector", | |
cbdc8379 MV |
85 | "f32vector", "f64vector", |
86 | "c32vector", "c64vector" | |
f8579182 MV |
87 | }; |
88 | ||
89 | /* ================================================================ */ | |
90 | /* SMOB procedures. */ | |
91 | /* ================================================================ */ | |
92 | ||
93 | ||
94 | /* Smob print hook for homogeneous vectors. */ | |
95 | static int | |
96 | uvec_print (SCM uvec, SCM port, scm_print_state *pstate) | |
97 | { | |
98 | union { | |
99 | scm_t_uint8 *u8; | |
100 | scm_t_int8 *s8; | |
101 | scm_t_uint16 *u16; | |
102 | scm_t_int16 *s16; | |
103 | scm_t_uint32 *u32; | |
104 | scm_t_int32 *s32; | |
105 | #if SCM_HAVE_T_INT64 | |
106 | scm_t_uint64 *u64; | |
107 | scm_t_int64 *s64; | |
108 | #endif | |
109 | float *f32; | |
110 | double *f64; | |
111 | } np; | |
112 | ||
113 | size_t i = 0; | |
114 | const size_t uvlen = SCM_UVEC_LENGTH (uvec); | |
f8579182 MV |
115 | void *uptr = SCM_UVEC_BASE (uvec); |
116 | ||
117 | switch (SCM_UVEC_TYPE (uvec)) | |
118 | { | |
e0e49670 MV |
119 | case SCM_UVEC_U8: np.u8 = (scm_t_uint8 *) uptr; break; |
120 | case SCM_UVEC_S8: np.s8 = (scm_t_int8 *) uptr; break; | |
121 | case SCM_UVEC_U16: np.u16 = (scm_t_uint16 *) uptr; break; | |
122 | case SCM_UVEC_S16: np.s16 = (scm_t_int16 *) uptr; break; | |
123 | case SCM_UVEC_U32: np.u32 = (scm_t_uint32 *) uptr; break; | |
124 | case SCM_UVEC_S32: np.s32 = (scm_t_int32 *) uptr; break; | |
f8579182 | 125 | #if SCM_HAVE_T_INT64 |
e0e49670 MV |
126 | case SCM_UVEC_U64: np.u64 = (scm_t_uint64 *) uptr; break; |
127 | case SCM_UVEC_S64: np.s64 = (scm_t_int64 *) uptr; break; | |
f8579182 | 128 | #endif |
e0e49670 MV |
129 | case SCM_UVEC_F32: np.f32 = (float *) uptr; break; |
130 | case SCM_UVEC_F64: np.f64 = (double *) uptr; break; | |
cbdc8379 MV |
131 | case SCM_UVEC_C32: np.f32 = (float *) uptr; break; |
132 | case SCM_UVEC_C64: np.f64 = (double *) uptr; break; | |
f8579182 MV |
133 | default: |
134 | abort (); /* Sanity check. */ | |
135 | break; | |
136 | } | |
137 | ||
138 | scm_putc ('#', port); | |
e0e49670 | 139 | scm_puts (uvec_tags [SCM_UVEC_TYPE (uvec)], port); |
f8579182 MV |
140 | scm_putc ('(', port); |
141 | ||
142 | while (i < uvlen) | |
143 | { | |
144 | if (i != 0) scm_puts (" ", port); | |
145 | switch (SCM_UVEC_TYPE (uvec)) | |
146 | { | |
147 | case SCM_UVEC_U8: scm_uintprint (*np.u8, 10, port); np.u8++; break; | |
148 | case SCM_UVEC_S8: scm_intprint (*np.s8, 10, port); np.s8++; break; | |
149 | case SCM_UVEC_U16: scm_uintprint (*np.u16, 10, port); np.u16++; break; | |
150 | case SCM_UVEC_S16: scm_intprint (*np.s16, 10, port); np.s16++; break; | |
151 | case SCM_UVEC_U32: scm_uintprint (*np.u32, 10, port); np.u32++; break; | |
152 | case SCM_UVEC_S32: scm_intprint (*np.s32, 10, port); np.s32++; break; | |
153 | #if SCM_HAVE_T_INT64 | |
154 | case SCM_UVEC_U64: scm_uintprint (*np.u64, 10, port); np.u64++; break; | |
155 | case SCM_UVEC_S64: scm_intprint (*np.s64, 10, port); np.s64++; break; | |
156 | #endif | |
157 | case SCM_UVEC_F32: scm_i_print_double (*np.f32, port); np.f32++; break; | |
158 | case SCM_UVEC_F64: scm_i_print_double (*np.f64, port); np.f64++; break; | |
cbdc8379 MV |
159 | case SCM_UVEC_C32: |
160 | scm_i_print_complex (np.f32[0], np.f32[1], port); | |
161 | np.f32 += 2; | |
162 | break; | |
163 | case SCM_UVEC_C64: | |
164 | scm_i_print_complex (np.f64[0], np.f64[1], port); | |
165 | np.f64 += 2; | |
166 | break; | |
f8579182 MV |
167 | default: |
168 | abort (); /* Sanity check. */ | |
169 | break; | |
170 | } | |
171 | i++; | |
172 | } | |
173 | scm_remember_upto_here_1 (uvec); | |
174 | scm_puts (")", port); | |
175 | return 1; | |
176 | } | |
177 | ||
e0e49670 MV |
178 | const char * |
179 | scm_i_uniform_vector_tag (SCM uvec) | |
180 | { | |
181 | return uvec_tags[SCM_UVEC_TYPE (uvec)]; | |
182 | } | |
183 | ||
f8579182 MV |
184 | static SCM |
185 | uvec_equalp (SCM a, SCM b) | |
186 | { | |
187 | SCM result = SCM_BOOL_T; | |
188 | if (SCM_UVEC_TYPE (a) != SCM_UVEC_TYPE (b)) | |
189 | result = SCM_BOOL_F; | |
190 | else if (SCM_UVEC_LENGTH (a) != SCM_UVEC_LENGTH (b)) | |
191 | result = SCM_BOOL_F; | |
192 | else if (memcmp (SCM_UVEC_BASE (a), SCM_UVEC_BASE (b), | |
193 | SCM_UVEC_LENGTH (a) * uvec_sizes[SCM_UVEC_TYPE(a)]) != 0) | |
194 | result = SCM_BOOL_F; | |
195 | ||
196 | scm_remember_upto_here_2 (a, b); | |
197 | return result; | |
198 | } | |
199 | ||
200 | /* Smob free hook for homogeneous numeric vectors. */ | |
201 | static size_t | |
202 | uvec_free (SCM uvec) | |
203 | { | |
204 | int type = SCM_UVEC_TYPE (uvec); | |
205 | scm_gc_free (SCM_UVEC_BASE (uvec), | |
206 | SCM_UVEC_LENGTH (uvec) * uvec_sizes[type], | |
207 | uvec_names[type]); | |
208 | return 0; | |
209 | } | |
210 | ||
211 | /* ================================================================ */ | |
212 | /* Utility procedures. */ | |
213 | /* ================================================================ */ | |
214 | ||
215 | static SCM_C_INLINE int | |
216 | is_uvec (int type, SCM obj) | |
217 | { | |
218 | return (SCM_SMOB_PREDICATE (scm_tc16_uvec, obj) | |
219 | && SCM_UVEC_TYPE (obj) == type); | |
220 | } | |
221 | ||
222 | static SCM_C_INLINE SCM | |
223 | uvec_p (int type, SCM obj) | |
224 | { | |
225 | return scm_from_bool (is_uvec (type, obj)); | |
226 | } | |
227 | ||
228 | static SCM_C_INLINE void | |
229 | uvec_assert (int type, SCM obj) | |
230 | { | |
231 | if (!is_uvec (type, obj)) | |
232 | scm_wrong_type_arg_msg (NULL, 0, obj, uvec_names[type]); | |
233 | } | |
234 | ||
faa00365 MV |
235 | static SCM |
236 | take_uvec (int type, const void *base, size_t len) | |
237 | { | |
238 | SCM_RETURN_NEWSMOB3 (scm_tc16_uvec, type, len, (scm_t_bits) base); | |
239 | } | |
240 | ||
f8579182 MV |
241 | /* Create a new, uninitialized homogeneous numeric vector of type TYPE |
242 | with space for LEN elements. */ | |
243 | static SCM | |
faa00365 | 244 | alloc_uvec (int type, size_t len) |
f8579182 | 245 | { |
811eb6d0 MV |
246 | void *base; |
247 | if (len > SCM_I_SIZE_MAX / uvec_sizes[type]) | |
248 | scm_out_of_range (NULL, scm_from_size_t (len)); | |
249 | base = scm_gc_malloc (len * uvec_sizes[type], uvec_names[type]); | |
faa00365 | 250 | return take_uvec (type, base, len); |
f8579182 MV |
251 | } |
252 | ||
253 | /* GCC doesn't seem to want to optimize unused switch clauses away, | |
254 | so we use a big 'if' in the next two functions. | |
255 | */ | |
256 | ||
257 | static SCM_C_INLINE SCM | |
258 | uvec_fast_ref (int type, void *base, size_t c_idx) | |
259 | { | |
260 | if (type == SCM_UVEC_U8) | |
261 | return scm_from_uint8 (((scm_t_uint8*)base)[c_idx]); | |
262 | else if (type == SCM_UVEC_S8) | |
263 | return scm_from_int8 (((scm_t_int8*)base)[c_idx]); | |
264 | else if (type == SCM_UVEC_U16) | |
265 | return scm_from_uint16 (((scm_t_uint16*)base)[c_idx]); | |
266 | else if (type == SCM_UVEC_S16) | |
267 | return scm_from_int16 (((scm_t_int16*)base)[c_idx]); | |
268 | else if (type == SCM_UVEC_U32) | |
269 | return scm_from_uint32 (((scm_t_uint32*)base)[c_idx]); | |
270 | else if (type == SCM_UVEC_S32) | |
271 | return scm_from_int32 (((scm_t_int32*)base)[c_idx]); | |
272 | #if SCM_HAVE_T_INT64 | |
273 | else if (type == SCM_UVEC_U64) | |
274 | return scm_from_uint64 (((scm_t_uint64*)base)[c_idx]); | |
275 | else if (type == SCM_UVEC_S64) | |
276 | return scm_from_int64 (((scm_t_int64*)base)[c_idx]); | |
277 | #endif | |
278 | else if (type == SCM_UVEC_F32) | |
279 | return scm_from_double (((float*)base)[c_idx]); | |
280 | else if (type == SCM_UVEC_F64) | |
281 | return scm_from_double (((double*)base)[c_idx]); | |
cbdc8379 MV |
282 | else if (type == SCM_UVEC_C32) |
283 | return scm_c_make_rectangular (((float*)base)[2*c_idx], | |
284 | ((float*)base)[2*c_idx+1]); | |
285 | else if (type == SCM_UVEC_C64) | |
286 | return scm_c_make_rectangular (((double*)base)[2*c_idx], | |
287 | ((double*)base)[2*c_idx+1]); | |
28d4aef1 MV |
288 | else |
289 | return SCM_BOOL_F; | |
f8579182 MV |
290 | } |
291 | ||
292 | static SCM_C_INLINE void | |
293 | uvec_fast_set_x (int type, void *base, size_t c_idx, SCM val) | |
294 | { | |
295 | if (type == SCM_UVEC_U8) | |
296 | (((scm_t_uint8*)base)[c_idx]) = scm_to_uint8 (val); | |
297 | else if (type == SCM_UVEC_S8) | |
298 | (((scm_t_int8*)base)[c_idx]) = scm_to_int8 (val); | |
299 | else if (type == SCM_UVEC_U16) | |
300 | (((scm_t_uint16*)base)[c_idx]) = scm_to_uint16 (val); | |
301 | else if (type == SCM_UVEC_S16) | |
302 | (((scm_t_int16*)base)[c_idx]) = scm_to_int16 (val); | |
303 | else if (type == SCM_UVEC_U32) | |
304 | (((scm_t_uint32*)base)[c_idx]) = scm_to_uint32 (val); | |
305 | else if (type == SCM_UVEC_S32) | |
306 | (((scm_t_int32*)base)[c_idx]) = scm_to_int32 (val); | |
307 | #if SCM_HAVE_T_INT64 | |
308 | else if (type == SCM_UVEC_U64) | |
309 | (((scm_t_uint64*)base)[c_idx]) = scm_to_uint64 (val); | |
310 | else if (type == SCM_UVEC_S64) | |
311 | (((scm_t_int64*)base)[c_idx]) = scm_to_int64 (val); | |
312 | #endif | |
313 | else if (type == SCM_UVEC_F32) | |
314 | (((float*)base)[c_idx]) = scm_to_double (val); | |
315 | else if (type == SCM_UVEC_F64) | |
316 | (((double*)base)[c_idx]) = scm_to_double (val); | |
cbdc8379 MV |
317 | else if (type == SCM_UVEC_C32) |
318 | { | |
319 | (((float*)base)[2*c_idx]) = scm_c_real_part (val); | |
320 | (((float*)base)[2*c_idx+1]) = scm_c_imag_part (val); | |
321 | } | |
322 | else if (type == SCM_UVEC_C64) | |
323 | { | |
324 | (((double*)base)[2*c_idx]) = scm_c_real_part (val); | |
325 | (((double*)base)[2*c_idx+1]) = scm_c_imag_part (val); | |
326 | } | |
f8579182 MV |
327 | } |
328 | ||
329 | static SCM_C_INLINE SCM | |
330 | make_uvec (int type, SCM len, SCM fill) | |
331 | { | |
811eb6d0 | 332 | size_t c_len = scm_to_size_t (len); |
f8579182 MV |
333 | SCM uvec = alloc_uvec (type, c_len); |
334 | if (!SCM_UNBNDP (fill)) | |
335 | { | |
336 | size_t idx; | |
337 | void *base = SCM_UVEC_BASE (uvec); | |
338 | for (idx = 0; idx < c_len; idx++) | |
339 | uvec_fast_set_x (type, base, idx, fill); | |
340 | } | |
341 | return uvec; | |
342 | } | |
343 | ||
344 | static SCM_C_INLINE SCM | |
345 | uvec_length (int type, SCM uvec) | |
346 | { | |
347 | uvec_assert (type, uvec); | |
348 | return scm_from_size_t (SCM_UVEC_LENGTH (uvec)); | |
349 | } | |
350 | ||
351 | static SCM_C_INLINE SCM | |
352 | uvec_ref (int type, SCM uvec, SCM idx) | |
353 | { | |
354 | size_t c_idx; | |
355 | SCM res; | |
356 | ||
357 | uvec_assert (type, uvec); | |
358 | c_idx = scm_to_unsigned_integer (idx, 0, SCM_UVEC_LENGTH (uvec)-1); | |
359 | res = uvec_fast_ref (type, SCM_UVEC_BASE(uvec), c_idx); | |
360 | scm_remember_upto_here_1 (uvec); | |
361 | return res; | |
362 | } | |
363 | ||
364 | static SCM_C_INLINE SCM | |
365 | uvec_set_x (int type, SCM uvec, SCM idx, SCM val) | |
366 | { | |
367 | size_t c_idx; | |
368 | ||
369 | uvec_assert (type, uvec); | |
370 | c_idx = scm_to_unsigned_integer (idx, 0, SCM_UVEC_LENGTH (uvec)-1); | |
371 | uvec_fast_set_x (type, SCM_UVEC_BASE(uvec), c_idx, val); | |
372 | scm_remember_upto_here_1 (uvec); | |
373 | return SCM_UNSPECIFIED; | |
374 | } | |
375 | ||
376 | static SCM_C_INLINE SCM | |
377 | uvec_to_list (int type, SCM uvec) | |
378 | { | |
379 | size_t c_idx; | |
380 | void *base; | |
381 | SCM res = SCM_EOL; | |
382 | ||
383 | uvec_assert (type, uvec); | |
384 | c_idx = SCM_UVEC_LENGTH (uvec); | |
385 | base = SCM_UVEC_BASE (uvec); | |
386 | while (c_idx-- > 0) | |
387 | res = scm_cons (uvec_fast_ref (type, base, c_idx), res); | |
388 | scm_remember_upto_here_1 (uvec); | |
389 | return res; | |
390 | } | |
391 | ||
392 | static SCM_C_INLINE SCM | |
393 | list_to_uvec (int type, SCM list) | |
394 | { | |
395 | SCM uvec; | |
396 | void *base; | |
397 | long idx; | |
398 | long len = scm_ilength (list); | |
399 | if (len < 0) | |
400 | scm_wrong_type_arg_msg (NULL, 0, list, "proper list"); | |
401 | ||
402 | uvec = alloc_uvec (type, len); | |
403 | base = SCM_UVEC_BASE (uvec); | |
404 | idx = 0; | |
405 | while (scm_is_pair (list) && idx < len) | |
406 | { | |
407 | uvec_fast_set_x (type, base, idx, SCM_CAR (list)); | |
408 | list = SCM_CDR (list); | |
409 | idx++; | |
410 | } | |
411 | return uvec; | |
412 | } | |
413 | ||
90d4368c MV |
414 | static SCM |
415 | coerce_to_uvec (int type, SCM obj) | |
416 | { | |
417 | if (is_uvec (type, obj)) | |
418 | return obj; | |
419 | else if (scm_is_pair (obj)) | |
420 | return list_to_uvec (type, obj); | |
811eb6d0 | 421 | else if (scm_is_generalized_vector (obj)) |
90d4368c | 422 | { |
811eb6d0 MV |
423 | size_t len = scm_c_generalized_vector_length (obj), i; |
424 | SCM uvec = alloc_uvec (type, len); | |
90d4368c | 425 | void *base = SCM_UVEC_BASE (uvec); |
811eb6d0 MV |
426 | for (i = 0; i < len; i++) |
427 | uvec_fast_set_x (type, base, i, scm_c_generalized_vector_ref (obj, i)); | |
90d4368c MV |
428 | return uvec; |
429 | } | |
430 | else | |
811eb6d0 | 431 | scm_wrong_type_arg_msg (NULL, 0, obj, "list or generalized vector"); |
90d4368c MV |
432 | } |
433 | ||
cbdc8379 MV |
434 | static SCM *uvec_proc_vars[12] = { |
435 | &scm_i_proc_make_u8vector, | |
436 | &scm_i_proc_make_s8vector, | |
437 | &scm_i_proc_make_u16vector, | |
438 | &scm_i_proc_make_s16vector, | |
439 | &scm_i_proc_make_u32vector, | |
440 | &scm_i_proc_make_s32vector, | |
441 | &scm_i_proc_make_u64vector, | |
442 | &scm_i_proc_make_s64vector, | |
443 | &scm_i_proc_make_f32vector, | |
444 | &scm_i_proc_make_f64vector, | |
445 | &scm_i_proc_make_c32vector, | |
446 | &scm_i_proc_make_c64vector | |
447 | }; | |
f8579182 | 448 | |
e0e49670 | 449 | SCM |
811eb6d0 | 450 | scm_i_generalized_vector_creator (SCM v) |
e0e49670 | 451 | { |
811eb6d0 MV |
452 | if (scm_is_vector (v)) |
453 | return scm_i_proc_make_vector; | |
454 | else if (scm_is_string (v)) | |
455 | return scm_i_proc_make_string; | |
456 | else if (scm_is_bitvector (v)) | |
457 | return scm_i_proc_make_bitvector; | |
458 | else if (scm_is_uniform_vector (v)) | |
459 | return *(uvec_proc_vars[SCM_UVEC_TYPE(v)]); | |
460 | else | |
461 | return SCM_BOOL_F; | |
e0e49670 MV |
462 | } |
463 | ||
464 | int | |
465 | scm_is_uniform_vector (SCM obj) | |
466 | { | |
467 | return SCM_SMOB_PREDICATE (scm_tc16_uvec, obj); | |
468 | } | |
469 | ||
470 | size_t | |
471 | scm_c_uniform_vector_length (SCM v) | |
472 | { | |
473 | if (scm_is_uniform_vector (v)) | |
474 | return SCM_UVEC_LENGTH (v); | |
475 | else | |
476 | scm_wrong_type_arg_msg (NULL, 0, v, "uniform vector"); | |
477 | } | |
478 | ||
479 | size_t | |
480 | scm_c_uniform_vector_size (SCM v) | |
481 | { | |
482 | if (scm_is_uniform_vector (v)) | |
483 | return SCM_UVEC_LENGTH (v) * uvec_sizes[SCM_UVEC_TYPE (v)]; | |
484 | else | |
485 | scm_wrong_type_arg_msg (NULL, 0, v, "uniform vector"); | |
486 | } | |
487 | ||
488 | SCM_DEFINE (scm_uniform_vector_p, "uniform-vector?", 1, 0, 0, | |
489 | (SCM obj), | |
490 | "Return @code{#t} if @var{obj} is a uniform vector.") | |
491 | #define FUNC_NAME s_scm_uniform_vector_p | |
492 | { | |
493 | return scm_from_bool (scm_is_uniform_vector (obj)); | |
494 | } | |
495 | #undef FUNC_NAME | |
496 | ||
497 | SCM_DEFINE (scm_uniform_vector_ref, "uniform-vector-ref", 2, 0, 0, | |
498 | (SCM v, SCM idx), | |
499 | "Return the element at index @var{idx} of the\n" | |
500 | "homogenous numeric vector @var{v}.") | |
501 | #define FUNC_NAME s_scm_uniform_vector_ref | |
502 | { | |
503 | /* Support old argument convention. | |
504 | */ | |
505 | if (scm_is_pair (idx)) | |
506 | { | |
507 | if (!scm_is_null (SCM_CDR (idx))) | |
508 | scm_wrong_num_args (NULL); | |
509 | idx = SCM_CAR (idx); | |
510 | } | |
511 | ||
512 | if (scm_is_uniform_vector (v)) | |
513 | return uvec_ref (SCM_UVEC_TYPE (v), v, idx); | |
514 | else | |
515 | scm_wrong_type_arg_msg (NULL, 0, v, "uniform vector"); | |
516 | } | |
517 | #undef FUNC_NAME | |
518 | ||
811eb6d0 MV |
519 | SCM |
520 | scm_c_uniform_vector_ref (SCM v, size_t idx) | |
521 | { | |
522 | if (scm_is_uniform_vector (v)) | |
523 | { | |
524 | if (idx < SCM_UVEC_LENGTH (v)) | |
525 | return uvec_fast_ref (SCM_UVEC_TYPE (v), SCM_UVEC_BASE (v), idx); | |
526 | else | |
527 | scm_out_of_range (NULL, scm_from_size_t (idx)); | |
528 | } | |
529 | else | |
530 | scm_wrong_type_arg_msg (NULL, 0, v, "uniform vector"); | |
531 | } | |
532 | ||
e0e49670 MV |
533 | SCM_DEFINE (scm_uniform_vector_set_x, "uniform-vector-set!", 3, 0, 0, |
534 | (SCM v, SCM idx, SCM val), | |
535 | "Set the element at index @var{idx} of the\n" | |
536 | "homogenous numeric vector @var{v} to @var{val}.") | |
537 | #define FUNC_NAME s_scm_uniform_vector_set_x | |
538 | { | |
539 | /* Support old argument convention. | |
540 | */ | |
541 | if (scm_is_pair (idx)) | |
542 | { | |
543 | if (!scm_is_null (SCM_CDR (idx))) | |
544 | scm_wrong_num_args (NULL); | |
545 | idx = SCM_CAR (idx); | |
546 | } | |
547 | ||
548 | if (scm_is_uniform_vector (v)) | |
549 | return uvec_set_x (SCM_UVEC_TYPE (v), v, idx, val); | |
550 | else | |
551 | scm_wrong_type_arg_msg (NULL, 0, v, "uniform vector"); | |
552 | } | |
553 | #undef FUNC_NAME | |
554 | ||
811eb6d0 MV |
555 | void |
556 | scm_c_uniform_vector_set_x (SCM v, size_t idx, SCM val) | |
557 | { | |
558 | if (scm_is_uniform_vector (v)) | |
559 | { | |
560 | if (idx < SCM_UVEC_LENGTH (v)) | |
561 | uvec_fast_set_x (SCM_UVEC_TYPE (v), SCM_UVEC_BASE (v), idx, val); | |
562 | else | |
563 | scm_out_of_range (NULL, scm_from_size_t (idx)); | |
564 | } | |
565 | else | |
566 | scm_wrong_type_arg_msg (NULL, 0, v, "uniform vector"); | |
567 | } | |
568 | ||
e0e49670 MV |
569 | SCM_DEFINE (scm_uniform_vector_to_list, "uniform-vector->list", 1, 0, 0, |
570 | (SCM uvec), | |
571 | "Convert the homogeneous numeric vector @var{uvec} to a list.") | |
811eb6d0 | 572 | #define FUNC_NAME s_scm_uniform_vector_to_list |
e0e49670 MV |
573 | { |
574 | if (scm_is_uniform_vector (uvec)) | |
575 | return uvec_to_list (SCM_UVEC_TYPE (uvec), uvec); | |
576 | else | |
577 | scm_wrong_type_arg_msg (NULL, 0, uvec, "uniform vector"); | |
578 | } | |
579 | #undef FUNC_NAME | |
580 | ||
581 | void * | |
582 | scm_uniform_vector_elements (SCM uvec) | |
583 | { | |
584 | if (scm_is_uniform_vector (uvec)) | |
585 | return SCM_UVEC_BASE (uvec); | |
586 | else | |
587 | scm_wrong_type_arg_msg (NULL, 0, uvec, "uniform vector"); | |
588 | } | |
589 | ||
590 | void | |
591 | scm_uniform_vector_release (SCM uvec) | |
592 | { | |
593 | /* Nothing to do right now, but this function might come in handy | |
594 | when uniform vectors need to be locked when giving away a pointer | |
595 | to their elements. | |
faa00365 | 596 | |
811eb6d0 | 597 | Also, a call to scm_uniform_vector_release acts like |
faa00365 | 598 | scm_remember_upto_here, which is needed in any case. |
e0e49670 MV |
599 | */ |
600 | } | |
601 | ||
d44ff083 MV |
602 | void |
603 | scm_frame_uniform_vector_release (SCM uvec) | |
604 | { | |
605 | scm_frame_unwind_handler_with_scm (scm_uniform_vector_release, uvec, | |
606 | SCM_F_WIND_EXPLICITLY); | |
607 | } | |
608 | ||
e0e49670 MV |
609 | size_t |
610 | scm_uniform_vector_element_size (SCM uvec) | |
611 | { | |
612 | if (scm_is_uniform_vector (uvec)) | |
613 | return uvec_sizes[SCM_UVEC_TYPE (uvec)]; | |
614 | else | |
615 | scm_wrong_type_arg_msg (NULL, 0, uvec, "uniform vector"); | |
616 | } | |
617 | ||
618 | /* return the size of an element in a uniform array or 0 if type not | |
619 | found. */ | |
620 | size_t | |
621 | scm_uniform_element_size (SCM obj) | |
622 | { | |
e0e49670 MV |
623 | if (scm_is_uniform_vector (obj)) |
624 | return scm_uniform_vector_element_size (obj); | |
90d4368c MV |
625 | else |
626 | return 0; | |
e0e49670 MV |
627 | } |
628 | ||
629 | SCM_DEFINE (scm_uniform_vector_length, "uniform-vector-length", 1, 0, 0, | |
630 | (SCM v), | |
811eb6d0 | 631 | "Return the number of elements in the uniform vector @var{v}.") |
e0e49670 MV |
632 | #define FUNC_NAME s_scm_uniform_vector_length |
633 | { | |
811eb6d0 | 634 | return scm_from_size_t (scm_c_uniform_vector_length (v)); |
e0e49670 MV |
635 | } |
636 | #undef FUNC_NAME | |
637 | ||
f8579182 MV |
638 | /* ================================================================ */ |
639 | /* Exported procedures. */ | |
640 | /* ================================================================ */ | |
641 | ||
e0e49670 MV |
642 | #define TYPE SCM_UVEC_U8 |
643 | #define TAG u8 | |
644 | #define CTYPE scm_t_uint8 | |
f8579182 MV |
645 | #include "libguile/srfi-4.i.c" |
646 | ||
e0e49670 MV |
647 | #define TYPE SCM_UVEC_S8 |
648 | #define TAG s8 | |
649 | #define CTYPE scm_t_int8 | |
f8579182 MV |
650 | #include "libguile/srfi-4.i.c" |
651 | ||
e0e49670 MV |
652 | #define TYPE SCM_UVEC_U16 |
653 | #define TAG u16 | |
654 | #define CTYPE scm_t_uint16 | |
f8579182 MV |
655 | #include "libguile/srfi-4.i.c" |
656 | ||
e0e49670 MV |
657 | #define TYPE SCM_UVEC_S16 |
658 | #define TAG s16 | |
659 | #define CTYPE scm_t_int16 | |
f8579182 MV |
660 | #include "libguile/srfi-4.i.c" |
661 | ||
e0e49670 MV |
662 | #define TYPE SCM_UVEC_U32 |
663 | #define TAG u32 | |
664 | #define CTYPE scm_t_uint32 | |
f8579182 MV |
665 | #include "libguile/srfi-4.i.c" |
666 | ||
e0e49670 MV |
667 | #define TYPE SCM_UVEC_S32 |
668 | #define TAG s32 | |
669 | #define CTYPE scm_t_int32 | |
f8579182 MV |
670 | #include "libguile/srfi-4.i.c" |
671 | ||
e0e49670 MV |
672 | #define TYPE SCM_UVEC_U64 |
673 | #define TAG u64 | |
674 | #define CTYPE scm_t_uint64 | |
f8579182 MV |
675 | #include "libguile/srfi-4.i.c" |
676 | ||
e0e49670 MV |
677 | #define TYPE SCM_UVEC_S64 |
678 | #define TAG s64 | |
679 | #define CTYPE scm_t_int64 | |
f8579182 MV |
680 | #include "libguile/srfi-4.i.c" |
681 | ||
e0e49670 MV |
682 | #define TYPE SCM_UVEC_F32 |
683 | #define TAG f32 | |
684 | #define CTYPE float | |
f8579182 MV |
685 | #include "libguile/srfi-4.i.c" |
686 | ||
e0e49670 MV |
687 | #define TYPE SCM_UVEC_F64 |
688 | #define TAG f64 | |
689 | #define CTYPE double | |
f8579182 MV |
690 | #include "libguile/srfi-4.i.c" |
691 | ||
cbdc8379 MV |
692 | #define TYPE SCM_UVEC_C32 |
693 | #define TAG c32 | |
694 | #define CTYPE float | |
695 | #include "libguile/srfi-4.i.c" | |
696 | ||
697 | #define TYPE SCM_UVEC_C64 | |
698 | #define TAG c64 | |
699 | #define CTYPE double | |
700 | #include "libguile/srfi-4.i.c" | |
701 | ||
702 | SCM scm_i_proc_make_u8vector; | |
703 | SCM scm_i_proc_make_s8vector; | |
704 | SCM scm_i_proc_make_u16vector; | |
705 | SCM scm_i_proc_make_s16vector; | |
706 | SCM scm_i_proc_make_u32vector; | |
707 | SCM scm_i_proc_make_s32vector; | |
708 | SCM scm_i_proc_make_u64vector; | |
709 | SCM scm_i_proc_make_s64vector; | |
710 | SCM scm_i_proc_make_f32vector; | |
711 | SCM scm_i_proc_make_f64vector; | |
712 | SCM scm_i_proc_make_c32vector; | |
713 | SCM scm_i_proc_make_c64vector; | |
f8579182 MV |
714 | |
715 | /* Create the smob type for homogeneous numeric vectors and install | |
716 | the primitives. */ | |
717 | void | |
718 | scm_init_srfi_4 (void) | |
719 | { | |
720 | scm_tc16_uvec = scm_make_smob_type ("uvec", 0); | |
721 | scm_set_smob_equalp (scm_tc16_uvec, uvec_equalp); | |
722 | scm_set_smob_free (scm_tc16_uvec, uvec_free); | |
723 | scm_set_smob_print (scm_tc16_uvec, uvec_print); | |
724 | #include "libguile/srfi-4.x" | |
cbdc8379 MV |
725 | |
726 | #define GETPROC(tag) \ | |
727 | scm_i_proc_make_##tag##vector = \ | |
728 | scm_variable_ref (scm_c_lookup ("make-"#tag"vector")) | |
729 | ||
730 | GETPROC (u8); | |
731 | GETPROC (s8); | |
732 | GETPROC (u16); | |
733 | GETPROC (s16); | |
734 | GETPROC (u32); | |
735 | GETPROC (s32); | |
736 | GETPROC (u64); | |
737 | GETPROC (s64); | |
738 | GETPROC (f32); | |
739 | GETPROC (f64); | |
740 | GETPROC (c32); | |
741 | GETPROC (c64); | |
f8579182 MV |
742 | } |
743 | ||
744 | /* End of srfi-4.c. */ |