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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 | ||
69730f92 MV |
20 | #if HAVE_CONFIG_H |
21 | # include <config.h> | |
22 | #endif | |
23 | ||
f8579182 | 24 | #include <string.h> |
69730f92 | 25 | #include <errno.h> |
f8579182 MV |
26 | #include <stdio.h> |
27 | ||
69730f92 MV |
28 | #include "libguile/_scm.h" |
29 | #include "libguile/__scm.h" | |
f8579182 MV |
30 | #include "libguile/srfi-4.h" |
31 | #include "libguile/error.h" | |
32 | #include "libguile/read.h" | |
33 | #include "libguile/ports.h" | |
34 | #include "libguile/chars.h" | |
69730f92 MV |
35 | #include "libguile/vectors.h" |
36 | #include "libguile/unif.h" | |
37 | #include "libguile/strings.h" | |
38 | #include "libguile/dynwind.h" | |
39 | ||
40 | #ifdef HAVE_UNISTD_H | |
41 | #include <unistd.h> | |
42 | #endif | |
43 | ||
44 | #ifdef HAVE_IO_H | |
45 | #include <io.h> | |
46 | #endif | |
f8579182 MV |
47 | |
48 | /* Smob type code for homogeneous numeric vectors. */ | |
49 | int scm_tc16_uvec = 0; | |
50 | ||
51 | ||
52 | /* Accessor macros for the three components of a homogeneous numeric | |
53 | vector: | |
54 | - The type tag (one of the symbolic constants below). | |
55 | - The vector's length (counted in elements). | |
56 | - The address of the data area (holding the elements of the | |
57 | vector). */ | |
58 | #define SCM_UVEC_TYPE(u) (SCM_CELL_WORD_1(u)) | |
59 | #define SCM_UVEC_LENGTH(u) ((size_t)SCM_CELL_WORD_2(u)) | |
60 | #define SCM_UVEC_BASE(u) ((void *)SCM_CELL_WORD_3(u)) | |
61 | ||
62 | ||
63 | /* Symbolic constants encoding the various types of homogeneous | |
64 | numeric vectors. */ | |
65 | #define SCM_UVEC_U8 0 | |
66 | #define SCM_UVEC_S8 1 | |
67 | #define SCM_UVEC_U16 2 | |
68 | #define SCM_UVEC_S16 3 | |
69 | #define SCM_UVEC_U32 4 | |
70 | #define SCM_UVEC_S32 5 | |
71 | #define SCM_UVEC_U64 6 | |
72 | #define SCM_UVEC_S64 7 | |
73 | #define SCM_UVEC_F32 8 | |
74 | #define SCM_UVEC_F64 9 | |
cbdc8379 MV |
75 | #define SCM_UVEC_C32 10 |
76 | #define SCM_UVEC_C64 11 | |
f8579182 MV |
77 | |
78 | ||
79 | /* This array maps type tags to the size of the elements. */ | |
cbdc8379 | 80 | static const int uvec_sizes[12] = { |
f8579182 MV |
81 | 1, 1, |
82 | 2, 2, | |
83 | 4, 4, | |
84 | 8, 8, | |
cbdc8379 MV |
85 | sizeof(float), sizeof(double), |
86 | 2*sizeof(float), 2*sizeof(double) | |
f8579182 MV |
87 | }; |
88 | ||
cbdc8379 | 89 | static const char *uvec_tags[12] = { |
e0e49670 MV |
90 | "u8", "s8", |
91 | "u16", "s16", | |
92 | "u32", "s32", | |
93 | "u64", "s64", | |
cbdc8379 MV |
94 | "f32", "f64", |
95 | "c32", "c64", | |
e0e49670 MV |
96 | }; |
97 | ||
cbdc8379 | 98 | static const char *uvec_names[12] = { |
f8579182 MV |
99 | "u8vector", "s8vector", |
100 | "u16vector", "s16vector", | |
101 | "u32vector", "s32vector", | |
102 | "u64vector", "s64vector", | |
cbdc8379 MV |
103 | "f32vector", "f64vector", |
104 | "c32vector", "c64vector" | |
f8579182 MV |
105 | }; |
106 | ||
107 | /* ================================================================ */ | |
108 | /* SMOB procedures. */ | |
109 | /* ================================================================ */ | |
110 | ||
111 | ||
112 | /* Smob print hook for homogeneous vectors. */ | |
113 | static int | |
114 | uvec_print (SCM uvec, SCM port, scm_print_state *pstate) | |
115 | { | |
116 | union { | |
117 | scm_t_uint8 *u8; | |
118 | scm_t_int8 *s8; | |
119 | scm_t_uint16 *u16; | |
120 | scm_t_int16 *s16; | |
121 | scm_t_uint32 *u32; | |
122 | scm_t_int32 *s32; | |
123 | #if SCM_HAVE_T_INT64 | |
124 | scm_t_uint64 *u64; | |
125 | scm_t_int64 *s64; | |
126 | #endif | |
127 | float *f32; | |
128 | double *f64; | |
129 | } np; | |
130 | ||
131 | size_t i = 0; | |
132 | const size_t uvlen = SCM_UVEC_LENGTH (uvec); | |
f8579182 MV |
133 | void *uptr = SCM_UVEC_BASE (uvec); |
134 | ||
135 | switch (SCM_UVEC_TYPE (uvec)) | |
136 | { | |
e0e49670 MV |
137 | case SCM_UVEC_U8: np.u8 = (scm_t_uint8 *) uptr; break; |
138 | case SCM_UVEC_S8: np.s8 = (scm_t_int8 *) uptr; break; | |
139 | case SCM_UVEC_U16: np.u16 = (scm_t_uint16 *) uptr; break; | |
140 | case SCM_UVEC_S16: np.s16 = (scm_t_int16 *) uptr; break; | |
141 | case SCM_UVEC_U32: np.u32 = (scm_t_uint32 *) uptr; break; | |
142 | case SCM_UVEC_S32: np.s32 = (scm_t_int32 *) uptr; break; | |
f8579182 | 143 | #if SCM_HAVE_T_INT64 |
e0e49670 MV |
144 | case SCM_UVEC_U64: np.u64 = (scm_t_uint64 *) uptr; break; |
145 | case SCM_UVEC_S64: np.s64 = (scm_t_int64 *) uptr; break; | |
f8579182 | 146 | #endif |
e0e49670 MV |
147 | case SCM_UVEC_F32: np.f32 = (float *) uptr; break; |
148 | case SCM_UVEC_F64: np.f64 = (double *) uptr; break; | |
cbdc8379 MV |
149 | case SCM_UVEC_C32: np.f32 = (float *) uptr; break; |
150 | case SCM_UVEC_C64: np.f64 = (double *) uptr; break; | |
f8579182 MV |
151 | default: |
152 | abort (); /* Sanity check. */ | |
153 | break; | |
154 | } | |
155 | ||
156 | scm_putc ('#', port); | |
e0e49670 | 157 | scm_puts (uvec_tags [SCM_UVEC_TYPE (uvec)], port); |
f8579182 MV |
158 | scm_putc ('(', port); |
159 | ||
160 | while (i < uvlen) | |
161 | { | |
162 | if (i != 0) scm_puts (" ", port); | |
163 | switch (SCM_UVEC_TYPE (uvec)) | |
164 | { | |
165 | case SCM_UVEC_U8: scm_uintprint (*np.u8, 10, port); np.u8++; break; | |
166 | case SCM_UVEC_S8: scm_intprint (*np.s8, 10, port); np.s8++; break; | |
167 | case SCM_UVEC_U16: scm_uintprint (*np.u16, 10, port); np.u16++; break; | |
168 | case SCM_UVEC_S16: scm_intprint (*np.s16, 10, port); np.s16++; break; | |
169 | case SCM_UVEC_U32: scm_uintprint (*np.u32, 10, port); np.u32++; break; | |
170 | case SCM_UVEC_S32: scm_intprint (*np.s32, 10, port); np.s32++; break; | |
171 | #if SCM_HAVE_T_INT64 | |
172 | case SCM_UVEC_U64: scm_uintprint (*np.u64, 10, port); np.u64++; break; | |
173 | case SCM_UVEC_S64: scm_intprint (*np.s64, 10, port); np.s64++; break; | |
174 | #endif | |
175 | case SCM_UVEC_F32: scm_i_print_double (*np.f32, port); np.f32++; break; | |
176 | case SCM_UVEC_F64: scm_i_print_double (*np.f64, port); np.f64++; break; | |
cbdc8379 MV |
177 | case SCM_UVEC_C32: |
178 | scm_i_print_complex (np.f32[0], np.f32[1], port); | |
179 | np.f32 += 2; | |
180 | break; | |
181 | case SCM_UVEC_C64: | |
182 | scm_i_print_complex (np.f64[0], np.f64[1], port); | |
183 | np.f64 += 2; | |
184 | break; | |
f8579182 MV |
185 | default: |
186 | abort (); /* Sanity check. */ | |
187 | break; | |
188 | } | |
189 | i++; | |
190 | } | |
191 | scm_remember_upto_here_1 (uvec); | |
192 | scm_puts (")", port); | |
193 | return 1; | |
194 | } | |
195 | ||
e0e49670 MV |
196 | const char * |
197 | scm_i_uniform_vector_tag (SCM uvec) | |
198 | { | |
199 | return uvec_tags[SCM_UVEC_TYPE (uvec)]; | |
200 | } | |
201 | ||
f8579182 MV |
202 | static SCM |
203 | uvec_equalp (SCM a, SCM b) | |
204 | { | |
205 | SCM result = SCM_BOOL_T; | |
206 | if (SCM_UVEC_TYPE (a) != SCM_UVEC_TYPE (b)) | |
207 | result = SCM_BOOL_F; | |
208 | else if (SCM_UVEC_LENGTH (a) != SCM_UVEC_LENGTH (b)) | |
209 | result = SCM_BOOL_F; | |
210 | else if (memcmp (SCM_UVEC_BASE (a), SCM_UVEC_BASE (b), | |
211 | SCM_UVEC_LENGTH (a) * uvec_sizes[SCM_UVEC_TYPE(a)]) != 0) | |
212 | result = SCM_BOOL_F; | |
213 | ||
214 | scm_remember_upto_here_2 (a, b); | |
215 | return result; | |
216 | } | |
217 | ||
218 | /* Smob free hook for homogeneous numeric vectors. */ | |
219 | static size_t | |
220 | uvec_free (SCM uvec) | |
221 | { | |
222 | int type = SCM_UVEC_TYPE (uvec); | |
223 | scm_gc_free (SCM_UVEC_BASE (uvec), | |
224 | SCM_UVEC_LENGTH (uvec) * uvec_sizes[type], | |
225 | uvec_names[type]); | |
226 | return 0; | |
227 | } | |
228 | ||
229 | /* ================================================================ */ | |
230 | /* Utility procedures. */ | |
231 | /* ================================================================ */ | |
232 | ||
233 | static SCM_C_INLINE int | |
234 | is_uvec (int type, SCM obj) | |
235 | { | |
236 | return (SCM_SMOB_PREDICATE (scm_tc16_uvec, obj) | |
237 | && SCM_UVEC_TYPE (obj) == type); | |
238 | } | |
239 | ||
240 | static SCM_C_INLINE SCM | |
241 | uvec_p (int type, SCM obj) | |
242 | { | |
243 | return scm_from_bool (is_uvec (type, obj)); | |
244 | } | |
245 | ||
246 | static SCM_C_INLINE void | |
247 | uvec_assert (int type, SCM obj) | |
248 | { | |
249 | if (!is_uvec (type, obj)) | |
250 | scm_wrong_type_arg_msg (NULL, 0, obj, uvec_names[type]); | |
251 | } | |
252 | ||
faa00365 MV |
253 | static SCM |
254 | take_uvec (int type, const void *base, size_t len) | |
255 | { | |
256 | SCM_RETURN_NEWSMOB3 (scm_tc16_uvec, type, len, (scm_t_bits) base); | |
257 | } | |
258 | ||
f8579182 MV |
259 | /* Create a new, uninitialized homogeneous numeric vector of type TYPE |
260 | with space for LEN elements. */ | |
261 | static SCM | |
faa00365 | 262 | alloc_uvec (int type, size_t len) |
f8579182 | 263 | { |
811eb6d0 MV |
264 | void *base; |
265 | if (len > SCM_I_SIZE_MAX / uvec_sizes[type]) | |
266 | scm_out_of_range (NULL, scm_from_size_t (len)); | |
267 | base = scm_gc_malloc (len * uvec_sizes[type], uvec_names[type]); | |
faa00365 | 268 | return take_uvec (type, base, len); |
f8579182 MV |
269 | } |
270 | ||
271 | /* GCC doesn't seem to want to optimize unused switch clauses away, | |
272 | so we use a big 'if' in the next two functions. | |
273 | */ | |
274 | ||
275 | static SCM_C_INLINE SCM | |
276 | uvec_fast_ref (int type, void *base, size_t c_idx) | |
277 | { | |
278 | if (type == SCM_UVEC_U8) | |
279 | return scm_from_uint8 (((scm_t_uint8*)base)[c_idx]); | |
280 | else if (type == SCM_UVEC_S8) | |
281 | return scm_from_int8 (((scm_t_int8*)base)[c_idx]); | |
282 | else if (type == SCM_UVEC_U16) | |
283 | return scm_from_uint16 (((scm_t_uint16*)base)[c_idx]); | |
284 | else if (type == SCM_UVEC_S16) | |
285 | return scm_from_int16 (((scm_t_int16*)base)[c_idx]); | |
286 | else if (type == SCM_UVEC_U32) | |
287 | return scm_from_uint32 (((scm_t_uint32*)base)[c_idx]); | |
288 | else if (type == SCM_UVEC_S32) | |
289 | return scm_from_int32 (((scm_t_int32*)base)[c_idx]); | |
290 | #if SCM_HAVE_T_INT64 | |
291 | else if (type == SCM_UVEC_U64) | |
292 | return scm_from_uint64 (((scm_t_uint64*)base)[c_idx]); | |
293 | else if (type == SCM_UVEC_S64) | |
294 | return scm_from_int64 (((scm_t_int64*)base)[c_idx]); | |
295 | #endif | |
296 | else if (type == SCM_UVEC_F32) | |
297 | return scm_from_double (((float*)base)[c_idx]); | |
298 | else if (type == SCM_UVEC_F64) | |
299 | return scm_from_double (((double*)base)[c_idx]); | |
cbdc8379 MV |
300 | else if (type == SCM_UVEC_C32) |
301 | return scm_c_make_rectangular (((float*)base)[2*c_idx], | |
302 | ((float*)base)[2*c_idx+1]); | |
303 | else if (type == SCM_UVEC_C64) | |
304 | return scm_c_make_rectangular (((double*)base)[2*c_idx], | |
305 | ((double*)base)[2*c_idx+1]); | |
28d4aef1 MV |
306 | else |
307 | return SCM_BOOL_F; | |
f8579182 MV |
308 | } |
309 | ||
310 | static SCM_C_INLINE void | |
311 | uvec_fast_set_x (int type, void *base, size_t c_idx, SCM val) | |
312 | { | |
313 | if (type == SCM_UVEC_U8) | |
314 | (((scm_t_uint8*)base)[c_idx]) = scm_to_uint8 (val); | |
315 | else if (type == SCM_UVEC_S8) | |
316 | (((scm_t_int8*)base)[c_idx]) = scm_to_int8 (val); | |
317 | else if (type == SCM_UVEC_U16) | |
318 | (((scm_t_uint16*)base)[c_idx]) = scm_to_uint16 (val); | |
319 | else if (type == SCM_UVEC_S16) | |
320 | (((scm_t_int16*)base)[c_idx]) = scm_to_int16 (val); | |
321 | else if (type == SCM_UVEC_U32) | |
322 | (((scm_t_uint32*)base)[c_idx]) = scm_to_uint32 (val); | |
323 | else if (type == SCM_UVEC_S32) | |
324 | (((scm_t_int32*)base)[c_idx]) = scm_to_int32 (val); | |
325 | #if SCM_HAVE_T_INT64 | |
326 | else if (type == SCM_UVEC_U64) | |
327 | (((scm_t_uint64*)base)[c_idx]) = scm_to_uint64 (val); | |
328 | else if (type == SCM_UVEC_S64) | |
329 | (((scm_t_int64*)base)[c_idx]) = scm_to_int64 (val); | |
330 | #endif | |
331 | else if (type == SCM_UVEC_F32) | |
332 | (((float*)base)[c_idx]) = scm_to_double (val); | |
333 | else if (type == SCM_UVEC_F64) | |
334 | (((double*)base)[c_idx]) = scm_to_double (val); | |
cbdc8379 MV |
335 | else if (type == SCM_UVEC_C32) |
336 | { | |
337 | (((float*)base)[2*c_idx]) = scm_c_real_part (val); | |
338 | (((float*)base)[2*c_idx+1]) = scm_c_imag_part (val); | |
339 | } | |
340 | else if (type == SCM_UVEC_C64) | |
341 | { | |
342 | (((double*)base)[2*c_idx]) = scm_c_real_part (val); | |
343 | (((double*)base)[2*c_idx+1]) = scm_c_imag_part (val); | |
344 | } | |
f8579182 MV |
345 | } |
346 | ||
347 | static SCM_C_INLINE SCM | |
348 | make_uvec (int type, SCM len, SCM fill) | |
349 | { | |
811eb6d0 | 350 | size_t c_len = scm_to_size_t (len); |
f8579182 MV |
351 | SCM uvec = alloc_uvec (type, c_len); |
352 | if (!SCM_UNBNDP (fill)) | |
353 | { | |
354 | size_t idx; | |
355 | void *base = SCM_UVEC_BASE (uvec); | |
356 | for (idx = 0; idx < c_len; idx++) | |
357 | uvec_fast_set_x (type, base, idx, fill); | |
358 | } | |
359 | return uvec; | |
360 | } | |
361 | ||
362 | static SCM_C_INLINE SCM | |
363 | uvec_length (int type, SCM uvec) | |
364 | { | |
365 | uvec_assert (type, uvec); | |
366 | return scm_from_size_t (SCM_UVEC_LENGTH (uvec)); | |
367 | } | |
368 | ||
369 | static SCM_C_INLINE SCM | |
370 | uvec_ref (int type, SCM uvec, SCM idx) | |
371 | { | |
372 | size_t c_idx; | |
373 | SCM res; | |
374 | ||
375 | uvec_assert (type, uvec); | |
376 | c_idx = scm_to_unsigned_integer (idx, 0, SCM_UVEC_LENGTH (uvec)-1); | |
377 | res = uvec_fast_ref (type, SCM_UVEC_BASE(uvec), c_idx); | |
378 | scm_remember_upto_here_1 (uvec); | |
379 | return res; | |
380 | } | |
381 | ||
382 | static SCM_C_INLINE SCM | |
383 | uvec_set_x (int type, SCM uvec, SCM idx, SCM val) | |
384 | { | |
385 | size_t c_idx; | |
386 | ||
387 | uvec_assert (type, uvec); | |
388 | c_idx = scm_to_unsigned_integer (idx, 0, SCM_UVEC_LENGTH (uvec)-1); | |
389 | uvec_fast_set_x (type, SCM_UVEC_BASE(uvec), c_idx, val); | |
390 | scm_remember_upto_here_1 (uvec); | |
391 | return SCM_UNSPECIFIED; | |
392 | } | |
393 | ||
394 | static SCM_C_INLINE SCM | |
395 | uvec_to_list (int type, SCM uvec) | |
396 | { | |
397 | size_t c_idx; | |
398 | void *base; | |
399 | SCM res = SCM_EOL; | |
400 | ||
401 | uvec_assert (type, uvec); | |
402 | c_idx = SCM_UVEC_LENGTH (uvec); | |
403 | base = SCM_UVEC_BASE (uvec); | |
404 | while (c_idx-- > 0) | |
405 | res = scm_cons (uvec_fast_ref (type, base, c_idx), res); | |
406 | scm_remember_upto_here_1 (uvec); | |
407 | return res; | |
408 | } | |
409 | ||
410 | static SCM_C_INLINE SCM | |
411 | list_to_uvec (int type, SCM list) | |
412 | { | |
413 | SCM uvec; | |
414 | void *base; | |
415 | long idx; | |
416 | long len = scm_ilength (list); | |
417 | if (len < 0) | |
418 | scm_wrong_type_arg_msg (NULL, 0, list, "proper list"); | |
419 | ||
420 | uvec = alloc_uvec (type, len); | |
421 | base = SCM_UVEC_BASE (uvec); | |
422 | idx = 0; | |
423 | while (scm_is_pair (list) && idx < len) | |
424 | { | |
425 | uvec_fast_set_x (type, base, idx, SCM_CAR (list)); | |
426 | list = SCM_CDR (list); | |
427 | idx++; | |
428 | } | |
429 | return uvec; | |
430 | } | |
431 | ||
90d4368c MV |
432 | static SCM |
433 | coerce_to_uvec (int type, SCM obj) | |
434 | { | |
435 | if (is_uvec (type, obj)) | |
436 | return obj; | |
437 | else if (scm_is_pair (obj)) | |
438 | return list_to_uvec (type, obj); | |
811eb6d0 | 439 | else if (scm_is_generalized_vector (obj)) |
90d4368c | 440 | { |
811eb6d0 MV |
441 | size_t len = scm_c_generalized_vector_length (obj), i; |
442 | SCM uvec = alloc_uvec (type, len); | |
90d4368c | 443 | void *base = SCM_UVEC_BASE (uvec); |
811eb6d0 MV |
444 | for (i = 0; i < len; i++) |
445 | uvec_fast_set_x (type, base, i, scm_c_generalized_vector_ref (obj, i)); | |
90d4368c MV |
446 | return uvec; |
447 | } | |
448 | else | |
811eb6d0 | 449 | scm_wrong_type_arg_msg (NULL, 0, obj, "list or generalized vector"); |
90d4368c MV |
450 | } |
451 | ||
cbdc8379 MV |
452 | static SCM *uvec_proc_vars[12] = { |
453 | &scm_i_proc_make_u8vector, | |
454 | &scm_i_proc_make_s8vector, | |
455 | &scm_i_proc_make_u16vector, | |
456 | &scm_i_proc_make_s16vector, | |
457 | &scm_i_proc_make_u32vector, | |
458 | &scm_i_proc_make_s32vector, | |
459 | &scm_i_proc_make_u64vector, | |
460 | &scm_i_proc_make_s64vector, | |
461 | &scm_i_proc_make_f32vector, | |
462 | &scm_i_proc_make_f64vector, | |
463 | &scm_i_proc_make_c32vector, | |
464 | &scm_i_proc_make_c64vector | |
465 | }; | |
f8579182 | 466 | |
e0e49670 | 467 | SCM |
811eb6d0 | 468 | scm_i_generalized_vector_creator (SCM v) |
e0e49670 | 469 | { |
811eb6d0 MV |
470 | if (scm_is_vector (v)) |
471 | return scm_i_proc_make_vector; | |
472 | else if (scm_is_string (v)) | |
473 | return scm_i_proc_make_string; | |
474 | else if (scm_is_bitvector (v)) | |
475 | return scm_i_proc_make_bitvector; | |
476 | else if (scm_is_uniform_vector (v)) | |
477 | return *(uvec_proc_vars[SCM_UVEC_TYPE(v)]); | |
478 | else | |
479 | return SCM_BOOL_F; | |
e0e49670 MV |
480 | } |
481 | ||
482 | int | |
483 | scm_is_uniform_vector (SCM obj) | |
484 | { | |
485 | return SCM_SMOB_PREDICATE (scm_tc16_uvec, obj); | |
486 | } | |
487 | ||
488 | size_t | |
489 | scm_c_uniform_vector_length (SCM v) | |
490 | { | |
491 | if (scm_is_uniform_vector (v)) | |
492 | return SCM_UVEC_LENGTH (v); | |
493 | else | |
494 | scm_wrong_type_arg_msg (NULL, 0, v, "uniform vector"); | |
495 | } | |
496 | ||
497 | size_t | |
498 | scm_c_uniform_vector_size (SCM v) | |
499 | { | |
500 | if (scm_is_uniform_vector (v)) | |
501 | return SCM_UVEC_LENGTH (v) * uvec_sizes[SCM_UVEC_TYPE (v)]; | |
502 | else | |
503 | scm_wrong_type_arg_msg (NULL, 0, v, "uniform vector"); | |
504 | } | |
505 | ||
506 | SCM_DEFINE (scm_uniform_vector_p, "uniform-vector?", 1, 0, 0, | |
507 | (SCM obj), | |
508 | "Return @code{#t} if @var{obj} is a uniform vector.") | |
509 | #define FUNC_NAME s_scm_uniform_vector_p | |
510 | { | |
511 | return scm_from_bool (scm_is_uniform_vector (obj)); | |
512 | } | |
513 | #undef FUNC_NAME | |
514 | ||
515 | SCM_DEFINE (scm_uniform_vector_ref, "uniform-vector-ref", 2, 0, 0, | |
516 | (SCM v, SCM idx), | |
517 | "Return the element at index @var{idx} of the\n" | |
518 | "homogenous numeric vector @var{v}.") | |
519 | #define FUNC_NAME s_scm_uniform_vector_ref | |
520 | { | |
521 | /* Support old argument convention. | |
522 | */ | |
523 | if (scm_is_pair (idx)) | |
524 | { | |
525 | if (!scm_is_null (SCM_CDR (idx))) | |
526 | scm_wrong_num_args (NULL); | |
527 | idx = SCM_CAR (idx); | |
528 | } | |
529 | ||
530 | if (scm_is_uniform_vector (v)) | |
531 | return uvec_ref (SCM_UVEC_TYPE (v), v, idx); | |
532 | else | |
533 | scm_wrong_type_arg_msg (NULL, 0, v, "uniform vector"); | |
534 | } | |
535 | #undef FUNC_NAME | |
536 | ||
811eb6d0 MV |
537 | SCM |
538 | scm_c_uniform_vector_ref (SCM v, size_t idx) | |
539 | { | |
540 | if (scm_is_uniform_vector (v)) | |
541 | { | |
542 | if (idx < SCM_UVEC_LENGTH (v)) | |
543 | return uvec_fast_ref (SCM_UVEC_TYPE (v), SCM_UVEC_BASE (v), idx); | |
544 | else | |
545 | scm_out_of_range (NULL, scm_from_size_t (idx)); | |
546 | } | |
547 | else | |
548 | scm_wrong_type_arg_msg (NULL, 0, v, "uniform vector"); | |
549 | } | |
550 | ||
e0e49670 MV |
551 | SCM_DEFINE (scm_uniform_vector_set_x, "uniform-vector-set!", 3, 0, 0, |
552 | (SCM v, SCM idx, SCM val), | |
553 | "Set the element at index @var{idx} of the\n" | |
554 | "homogenous numeric vector @var{v} to @var{val}.") | |
555 | #define FUNC_NAME s_scm_uniform_vector_set_x | |
556 | { | |
557 | /* Support old argument convention. | |
558 | */ | |
559 | if (scm_is_pair (idx)) | |
560 | { | |
561 | if (!scm_is_null (SCM_CDR (idx))) | |
562 | scm_wrong_num_args (NULL); | |
563 | idx = SCM_CAR (idx); | |
564 | } | |
565 | ||
566 | if (scm_is_uniform_vector (v)) | |
567 | return uvec_set_x (SCM_UVEC_TYPE (v), v, idx, val); | |
568 | else | |
569 | scm_wrong_type_arg_msg (NULL, 0, v, "uniform vector"); | |
570 | } | |
571 | #undef FUNC_NAME | |
572 | ||
811eb6d0 MV |
573 | void |
574 | scm_c_uniform_vector_set_x (SCM v, size_t idx, SCM val) | |
575 | { | |
576 | if (scm_is_uniform_vector (v)) | |
577 | { | |
578 | if (idx < SCM_UVEC_LENGTH (v)) | |
579 | uvec_fast_set_x (SCM_UVEC_TYPE (v), SCM_UVEC_BASE (v), idx, val); | |
580 | else | |
581 | scm_out_of_range (NULL, scm_from_size_t (idx)); | |
582 | } | |
583 | else | |
584 | scm_wrong_type_arg_msg (NULL, 0, v, "uniform vector"); | |
585 | } | |
586 | ||
e0e49670 MV |
587 | SCM_DEFINE (scm_uniform_vector_to_list, "uniform-vector->list", 1, 0, 0, |
588 | (SCM uvec), | |
589 | "Convert the homogeneous numeric vector @var{uvec} to a list.") | |
811eb6d0 | 590 | #define FUNC_NAME s_scm_uniform_vector_to_list |
e0e49670 MV |
591 | { |
592 | if (scm_is_uniform_vector (uvec)) | |
593 | return uvec_to_list (SCM_UVEC_TYPE (uvec), uvec); | |
594 | else | |
595 | scm_wrong_type_arg_msg (NULL, 0, uvec, "uniform vector"); | |
596 | } | |
597 | #undef FUNC_NAME | |
598 | ||
b590aceb | 599 | const void * |
e0e49670 MV |
600 | scm_uniform_vector_elements (SCM uvec) |
601 | { | |
602 | if (scm_is_uniform_vector (uvec)) | |
603 | return SCM_UVEC_BASE (uvec); | |
604 | else | |
605 | scm_wrong_type_arg_msg (NULL, 0, uvec, "uniform vector"); | |
606 | } | |
607 | ||
608 | void | |
b590aceb | 609 | scm_uniform_vector_release_elements (SCM uvec) |
e0e49670 MV |
610 | { |
611 | /* Nothing to do right now, but this function might come in handy | |
612 | when uniform vectors need to be locked when giving away a pointer | |
613 | to their elements. | |
faa00365 | 614 | |
811eb6d0 | 615 | Also, a call to scm_uniform_vector_release acts like |
faa00365 | 616 | scm_remember_upto_here, which is needed in any case. |
e0e49670 | 617 | */ |
b590aceb MV |
618 | |
619 | scm_remember_upto_here_1 (uvec); | |
e0e49670 MV |
620 | } |
621 | ||
d44ff083 | 622 | void |
b590aceb | 623 | scm_frame_uniform_vector_release_elements (SCM uvec) |
d44ff083 | 624 | { |
b590aceb | 625 | scm_frame_unwind_handler_with_scm (scm_uniform_vector_release_elements, uvec, |
d44ff083 MV |
626 | SCM_F_WIND_EXPLICITLY); |
627 | } | |
628 | ||
b590aceb MV |
629 | void * |
630 | scm_uniform_vector_writable_elements (SCM uvec) | |
631 | { | |
632 | if (scm_is_uniform_vector (uvec)) | |
633 | return SCM_UVEC_BASE (uvec); | |
634 | else | |
635 | scm_wrong_type_arg_msg (NULL, 0, uvec, "uniform vector"); | |
636 | } | |
637 | ||
638 | void | |
639 | scm_uniform_vector_release_writable_elements (SCM uvec) | |
640 | { | |
641 | /* Nothing to do right now, but this function might come in handy | |
642 | when uniform vectors need to be locked when giving away a pointer | |
643 | to their elements. | |
644 | ||
645 | Also, a call to scm_uniform_vector_release acts like | |
646 | scm_remember_upto_here, which is needed in any case. | |
647 | */ | |
648 | ||
649 | scm_remember_upto_here_1 (uvec); | |
650 | } | |
651 | ||
652 | void | |
653 | scm_frame_uniform_vector_release_writable_elements (SCM uvec) | |
654 | { | |
655 | scm_frame_unwind_handler_with_scm | |
656 | (scm_uniform_vector_release_writable_elements, uvec, | |
657 | SCM_F_WIND_EXPLICITLY); | |
658 | } | |
659 | ||
e0e49670 MV |
660 | size_t |
661 | scm_uniform_vector_element_size (SCM uvec) | |
662 | { | |
663 | if (scm_is_uniform_vector (uvec)) | |
664 | return uvec_sizes[SCM_UVEC_TYPE (uvec)]; | |
665 | else | |
666 | scm_wrong_type_arg_msg (NULL, 0, uvec, "uniform vector"); | |
667 | } | |
668 | ||
669 | /* return the size of an element in a uniform array or 0 if type not | |
670 | found. */ | |
671 | size_t | |
672 | scm_uniform_element_size (SCM obj) | |
673 | { | |
e0e49670 MV |
674 | if (scm_is_uniform_vector (obj)) |
675 | return scm_uniform_vector_element_size (obj); | |
90d4368c MV |
676 | else |
677 | return 0; | |
e0e49670 MV |
678 | } |
679 | ||
680 | SCM_DEFINE (scm_uniform_vector_length, "uniform-vector-length", 1, 0, 0, | |
681 | (SCM v), | |
811eb6d0 | 682 | "Return the number of elements in the uniform vector @var{v}.") |
e0e49670 MV |
683 | #define FUNC_NAME s_scm_uniform_vector_length |
684 | { | |
811eb6d0 | 685 | return scm_from_size_t (scm_c_uniform_vector_length (v)); |
e0e49670 MV |
686 | } |
687 | #undef FUNC_NAME | |
688 | ||
69730f92 MV |
689 | SCM_DEFINE (scm_uniform_vector_read_x, "uniform-vector-read!", 1, 3, 0, |
690 | (SCM uvec, SCM port_or_fd, SCM start, SCM end), | |
691 | "Fill the elements of @var{uvec} by reading\n" | |
692 | "raw bytes from @var{port-or-fdes}, using host byte order.\n\n" | |
693 | "The optional arguments @var{start} (inclusive) and @var{end}\n" | |
694 | "(exclusive) allow a specified region to be read,\n" | |
695 | "leaving the remainder of the vector unchanged.\n\n" | |
696 | "When @var{port-or-fdes} is a port, all specified elements\n" | |
697 | "of @var{uvec} are attempted to be read, potentially blocking\n" | |
698 | "while waiting formore input or end-of-file.\n" | |
699 | "When @var{port-or-fd} is an integer, a single call to\n" | |
700 | "read(2) is made.\n\n" | |
701 | "An error is signalled when the last element has only\n" | |
702 | "been partially filled before reaching end-of-file or in\n" | |
703 | "the single call to read(2).\n\n" | |
704 | "@code{uniform-array-read!} returns the number of elements read.\n" | |
705 | "@var{port-or-fdes} may be omitted, in which case it defaults\n" | |
706 | "to the value returned by @code{(current-input-port)}.") | |
707 | #define FUNC_NAME s_scm_uniform_vector_read_x | |
708 | { | |
709 | size_t vlen, sz, ans; | |
710 | size_t cstart, cend; | |
711 | size_t remaining, off; | |
712 | void *base; | |
713 | ||
714 | if (SCM_UNBNDP (port_or_fd)) | |
715 | port_or_fd = scm_cur_inp; | |
716 | else | |
717 | SCM_ASSERT (scm_is_integer (port_or_fd) | |
718 | || (SCM_OPINPORTP (port_or_fd)), | |
719 | port_or_fd, SCM_ARG2, FUNC_NAME); | |
720 | ||
721 | ||
722 | scm_frame_begin (0); | |
723 | ||
724 | vlen = scm_c_uniform_vector_length (uvec); | |
725 | sz = scm_uniform_vector_element_size (uvec); | |
b590aceb MV |
726 | base = scm_uniform_vector_writable_elements (uvec); |
727 | scm_frame_uniform_vector_release_writable_elements (uvec); | |
69730f92 MV |
728 | |
729 | cstart = 0; | |
730 | cend = vlen; | |
731 | if (!SCM_UNBNDP (start)) | |
732 | { | |
733 | cstart = scm_to_unsigned_integer (start, 0, vlen); | |
734 | if (!SCM_UNBNDP (end)) | |
735 | cend = scm_to_unsigned_integer (end, cstart, vlen); | |
736 | } | |
737 | ||
738 | remaining = (cend - cstart) * sz; | |
739 | off = cstart * sz; | |
740 | ||
741 | if (SCM_NIMP (port_or_fd)) | |
742 | { | |
743 | scm_t_port *pt = SCM_PTAB_ENTRY (port_or_fd); | |
744 | ||
745 | if (pt->rw_active == SCM_PORT_WRITE) | |
746 | scm_flush (port_or_fd); | |
747 | ||
748 | ans = cend - cstart; | |
749 | while (remaining > 0) | |
750 | { | |
751 | if (pt->read_pos < pt->read_end) | |
752 | { | |
753 | size_t to_copy = min (pt->read_end - pt->read_pos, | |
754 | remaining); | |
755 | ||
756 | memcpy (base + off, pt->read_pos, to_copy); | |
757 | pt->read_pos += to_copy; | |
758 | remaining -= to_copy; | |
759 | off += to_copy; | |
760 | } | |
761 | else | |
762 | { | |
763 | if (scm_fill_input (port_or_fd) == EOF) | |
764 | { | |
765 | if (remaining % sz != 0) | |
766 | SCM_MISC_ERROR ("unexpected EOF", SCM_EOL); | |
767 | ans -= remaining / sz; | |
768 | break; | |
769 | } | |
770 | } | |
771 | } | |
772 | ||
773 | if (pt->rw_random) | |
774 | pt->rw_active = SCM_PORT_READ; | |
775 | } | |
776 | else /* file descriptor. */ | |
777 | { | |
778 | int fd = scm_to_int (port_or_fd); | |
779 | int n; | |
780 | ||
781 | SCM_SYSCALL (n = read (fd, base + off, remaining)); | |
782 | if (n == -1) | |
783 | SCM_SYSERROR; | |
784 | if (n % sz != 0) | |
785 | SCM_MISC_ERROR ("unexpected EOF", SCM_EOL); | |
786 | ans = n / sz; | |
787 | } | |
788 | ||
789 | scm_frame_end (); | |
790 | ||
791 | return scm_from_size_t (ans); | |
792 | } | |
793 | #undef FUNC_NAME | |
794 | ||
795 | SCM_DEFINE (scm_uniform_vector_write, "uniform-vector-write", 1, 3, 0, | |
796 | (SCM uvec, SCM port_or_fd, SCM start, SCM end), | |
797 | "Write the elements of @var{uvec} as raw bytes to\n" | |
798 | "@var{port-or-fdes}, in the host byte order.\n\n" | |
799 | "The optional arguments @var{start} (inclusive)\n" | |
800 | "and @var{end} (exclusive) allow\n" | |
801 | "a specified region to be written.\n\n" | |
802 | "When @var{port-or-fdes} is a port, all specified elements\n" | |
803 | "of @var{uvec} are attempted to be written, potentially blocking\n" | |
804 | "while waiting for more room.\n" | |
805 | "When @var{port-or-fd} is an integer, a single call to\n" | |
806 | "write(2) is made.\n\n" | |
807 | "An error is signalled when the last element has only\n" | |
808 | "been partially written in the single call to write(2).\n\n" | |
809 | "The number of objects actually written is returned.\n" | |
810 | "@var{port-or-fdes} may be\n" | |
811 | "omitted, in which case it defaults to the value returned by\n" | |
812 | "@code{(current-output-port)}.") | |
813 | #define FUNC_NAME s_scm_uniform_vector_write | |
814 | { | |
815 | size_t vlen, sz, ans; | |
816 | size_t cstart, cend; | |
817 | size_t amount, off; | |
b590aceb | 818 | const void *base; |
69730f92 MV |
819 | |
820 | port_or_fd = SCM_COERCE_OUTPORT (port_or_fd); | |
821 | ||
822 | if (SCM_UNBNDP (port_or_fd)) | |
823 | port_or_fd = scm_cur_outp; | |
824 | else | |
825 | SCM_ASSERT (scm_is_integer (port_or_fd) | |
826 | || (SCM_OPOUTPORTP (port_or_fd)), | |
827 | port_or_fd, SCM_ARG2, FUNC_NAME); | |
828 | ||
829 | scm_frame_begin (0); | |
830 | ||
831 | vlen = scm_c_generalized_vector_length (uvec); | |
832 | sz = scm_uniform_vector_element_size (uvec); | |
833 | base = scm_uniform_vector_elements (uvec); | |
b590aceb | 834 | scm_frame_uniform_vector_release_elements (uvec); |
69730f92 MV |
835 | |
836 | cstart = 0; | |
837 | cend = vlen; | |
838 | if (!SCM_UNBNDP (start)) | |
839 | { | |
840 | cstart = scm_to_unsigned_integer (start, 0, vlen); | |
841 | if (!SCM_UNBNDP (end)) | |
842 | cend = scm_to_unsigned_integer (end, cstart, vlen); | |
843 | } | |
844 | ||
845 | amount = (cend - cstart) * sz; | |
846 | off = cstart * sz; | |
847 | ||
848 | if (SCM_NIMP (port_or_fd)) | |
849 | { | |
850 | scm_lfwrite (base + off, amount, port_or_fd); | |
851 | ans = cend - cstart; | |
852 | } | |
853 | else /* file descriptor. */ | |
854 | { | |
855 | int fd = scm_to_int (port_or_fd), n; | |
856 | SCM_SYSCALL (n = write (fd, base + off, amount)); | |
857 | if (n == -1) | |
858 | SCM_SYSERROR; | |
859 | if (n % sz != 0) | |
860 | SCM_MISC_ERROR ("last element only written partially", SCM_EOL); | |
861 | ans = n / sz; | |
862 | } | |
863 | ||
864 | scm_frame_end (); | |
865 | ||
866 | return scm_from_size_t (ans); | |
867 | } | |
868 | #undef FUNC_NAME | |
869 | ||
f8579182 MV |
870 | /* ================================================================ */ |
871 | /* Exported procedures. */ | |
872 | /* ================================================================ */ | |
873 | ||
e0e49670 MV |
874 | #define TYPE SCM_UVEC_U8 |
875 | #define TAG u8 | |
876 | #define CTYPE scm_t_uint8 | |
f8579182 MV |
877 | #include "libguile/srfi-4.i.c" |
878 | ||
e0e49670 MV |
879 | #define TYPE SCM_UVEC_S8 |
880 | #define TAG s8 | |
881 | #define CTYPE scm_t_int8 | |
f8579182 MV |
882 | #include "libguile/srfi-4.i.c" |
883 | ||
e0e49670 MV |
884 | #define TYPE SCM_UVEC_U16 |
885 | #define TAG u16 | |
886 | #define CTYPE scm_t_uint16 | |
f8579182 MV |
887 | #include "libguile/srfi-4.i.c" |
888 | ||
e0e49670 MV |
889 | #define TYPE SCM_UVEC_S16 |
890 | #define TAG s16 | |
891 | #define CTYPE scm_t_int16 | |
f8579182 MV |
892 | #include "libguile/srfi-4.i.c" |
893 | ||
e0e49670 MV |
894 | #define TYPE SCM_UVEC_U32 |
895 | #define TAG u32 | |
896 | #define CTYPE scm_t_uint32 | |
f8579182 MV |
897 | #include "libguile/srfi-4.i.c" |
898 | ||
e0e49670 MV |
899 | #define TYPE SCM_UVEC_S32 |
900 | #define TAG s32 | |
901 | #define CTYPE scm_t_int32 | |
f8579182 MV |
902 | #include "libguile/srfi-4.i.c" |
903 | ||
e0e49670 MV |
904 | #define TYPE SCM_UVEC_U64 |
905 | #define TAG u64 | |
906 | #define CTYPE scm_t_uint64 | |
f8579182 MV |
907 | #include "libguile/srfi-4.i.c" |
908 | ||
e0e49670 MV |
909 | #define TYPE SCM_UVEC_S64 |
910 | #define TAG s64 | |
911 | #define CTYPE scm_t_int64 | |
f8579182 MV |
912 | #include "libguile/srfi-4.i.c" |
913 | ||
e0e49670 MV |
914 | #define TYPE SCM_UVEC_F32 |
915 | #define TAG f32 | |
916 | #define CTYPE float | |
f8579182 MV |
917 | #include "libguile/srfi-4.i.c" |
918 | ||
e0e49670 MV |
919 | #define TYPE SCM_UVEC_F64 |
920 | #define TAG f64 | |
921 | #define CTYPE double | |
f8579182 MV |
922 | #include "libguile/srfi-4.i.c" |
923 | ||
cbdc8379 MV |
924 | #define TYPE SCM_UVEC_C32 |
925 | #define TAG c32 | |
926 | #define CTYPE float | |
927 | #include "libguile/srfi-4.i.c" | |
928 | ||
929 | #define TYPE SCM_UVEC_C64 | |
930 | #define TAG c64 | |
931 | #define CTYPE double | |
932 | #include "libguile/srfi-4.i.c" | |
933 | ||
934 | SCM scm_i_proc_make_u8vector; | |
935 | SCM scm_i_proc_make_s8vector; | |
936 | SCM scm_i_proc_make_u16vector; | |
937 | SCM scm_i_proc_make_s16vector; | |
938 | SCM scm_i_proc_make_u32vector; | |
939 | SCM scm_i_proc_make_s32vector; | |
940 | SCM scm_i_proc_make_u64vector; | |
941 | SCM scm_i_proc_make_s64vector; | |
942 | SCM scm_i_proc_make_f32vector; | |
943 | SCM scm_i_proc_make_f64vector; | |
944 | SCM scm_i_proc_make_c32vector; | |
945 | SCM scm_i_proc_make_c64vector; | |
f8579182 MV |
946 | |
947 | /* Create the smob type for homogeneous numeric vectors and install | |
948 | the primitives. */ | |
949 | void | |
950 | scm_init_srfi_4 (void) | |
951 | { | |
952 | scm_tc16_uvec = scm_make_smob_type ("uvec", 0); | |
953 | scm_set_smob_equalp (scm_tc16_uvec, uvec_equalp); | |
954 | scm_set_smob_free (scm_tc16_uvec, uvec_free); | |
955 | scm_set_smob_print (scm_tc16_uvec, uvec_print); | |
956 | #include "libguile/srfi-4.x" | |
cbdc8379 MV |
957 | |
958 | #define GETPROC(tag) \ | |
959 | scm_i_proc_make_##tag##vector = \ | |
960 | scm_variable_ref (scm_c_lookup ("make-"#tag"vector")) | |
961 | ||
962 | GETPROC (u8); | |
963 | GETPROC (s8); | |
964 | GETPROC (u16); | |
965 | GETPROC (s16); | |
966 | GETPROC (u32); | |
967 | GETPROC (s32); | |
968 | GETPROC (u64); | |
969 | GETPROC (s64); | |
970 | GETPROC (f32); | |
971 | GETPROC (f64); | |
972 | GETPROC (c32); | |
973 | GETPROC (c64); | |
f8579182 MV |
974 | } |
975 | ||
976 | /* End of srfi-4.c. */ |