Alexandre Lision | 7c6f4a6 | 2013-09-05 13:27:01 -0400 | [diff] [blame] | 1 | /* |
| 2 | ** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com> |
| 3 | ** |
| 4 | ** This program is free software; you can redistribute it and/or modify |
| 5 | ** it under the terms of the GNU Lesser General Public License as published by |
| 6 | ** the Free Software Foundation; either version 2.1 of the License, or |
| 7 | ** (at your option) any later version. |
| 8 | ** |
| 9 | ** This program is distributed in the hope that it will be useful, |
| 10 | ** but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | ** GNU Lesser General Public License for more details. |
| 13 | ** |
| 14 | ** You should have received a copy of the GNU Lesser General Public License |
| 15 | ** along with this program; if not, write to the Free Software |
| 16 | ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 17 | */ |
| 18 | |
| 19 | #include "sfconfig.h" |
| 20 | |
| 21 | #include <stdio.h> |
| 22 | #include <stdlib.h> |
| 23 | #include <string.h> |
| 24 | #include <limits.h> |
| 25 | #include <math.h> |
| 26 | |
| 27 | #include "sndfile.h" |
| 28 | #include "sfendian.h" |
| 29 | #include "common.h" |
| 30 | |
| 31 | #if CPU_IS_LITTLE_ENDIAN |
| 32 | #define FLOAT32_READ float32_le_read |
| 33 | #define FLOAT32_WRITE float32_le_write |
| 34 | #elif CPU_IS_BIG_ENDIAN |
| 35 | #define FLOAT32_READ float32_be_read |
| 36 | #define FLOAT32_WRITE float32_be_write |
| 37 | #endif |
| 38 | |
| 39 | /*-------------------------------------------------------------------------------------------- |
| 40 | ** Processor floating point capabilities. float32_get_capability () returns one of the |
| 41 | ** latter four values. |
| 42 | */ |
| 43 | |
| 44 | enum |
| 45 | { FLOAT_UNKNOWN = 0x00, |
| 46 | FLOAT_CAN_RW_LE = 0x12, |
| 47 | FLOAT_CAN_RW_BE = 0x23, |
| 48 | FLOAT_BROKEN_LE = 0x34, |
| 49 | FLOAT_BROKEN_BE = 0x45 |
| 50 | } ; |
| 51 | |
| 52 | /*-------------------------------------------------------------------------------------------- |
| 53 | ** Prototypes for private functions. |
| 54 | */ |
| 55 | |
| 56 | static sf_count_t host_read_f2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; |
| 57 | static sf_count_t host_read_f2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; |
| 58 | static sf_count_t host_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; |
| 59 | static sf_count_t host_read_f2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; |
| 60 | |
| 61 | static sf_count_t host_write_s2f (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; |
| 62 | static sf_count_t host_write_i2f (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; |
| 63 | static sf_count_t host_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; |
| 64 | static sf_count_t host_write_d2f (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; |
| 65 | |
| 66 | static void float32_peak_update (SF_PRIVATE *psf, const float *buffer, int count, sf_count_t indx) ; |
| 67 | |
| 68 | static sf_count_t replace_read_f2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; |
| 69 | static sf_count_t replace_read_f2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; |
| 70 | static sf_count_t replace_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; |
| 71 | static sf_count_t replace_read_f2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; |
| 72 | |
| 73 | static sf_count_t replace_write_s2f (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; |
| 74 | static sf_count_t replace_write_i2f (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; |
| 75 | static sf_count_t replace_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; |
| 76 | static sf_count_t replace_write_d2f (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; |
| 77 | |
| 78 | static void bf2f_array (float *buffer, int count) ; |
| 79 | static void f2bf_array (float *buffer, int count) ; |
| 80 | |
| 81 | static int float32_get_capability (SF_PRIVATE *psf) ; |
| 82 | |
| 83 | /*-------------------------------------------------------------------------------------------- |
| 84 | ** Exported functions. |
| 85 | */ |
| 86 | |
| 87 | int |
| 88 | float32_init (SF_PRIVATE *psf) |
| 89 | { static int float_caps ; |
| 90 | |
| 91 | float_caps = float32_get_capability (psf) ; |
| 92 | |
| 93 | psf->blockwidth = sizeof (float) * psf->sf.channels ; |
| 94 | |
| 95 | if (psf->file.mode == SFM_READ || psf->file.mode == SFM_RDWR) |
| 96 | { switch (psf->endian + float_caps) |
| 97 | { case (SF_ENDIAN_BIG + FLOAT_CAN_RW_BE) : |
| 98 | psf->data_endswap = SF_FALSE ; |
| 99 | psf->read_short = host_read_f2s ; |
| 100 | psf->read_int = host_read_f2i ; |
| 101 | psf->read_float = host_read_f ; |
| 102 | psf->read_double = host_read_f2d ; |
| 103 | break ; |
| 104 | |
| 105 | case (SF_ENDIAN_LITTLE + FLOAT_CAN_RW_LE) : |
| 106 | psf->data_endswap = SF_FALSE ; |
| 107 | psf->read_short = host_read_f2s ; |
| 108 | psf->read_int = host_read_f2i ; |
| 109 | psf->read_float = host_read_f ; |
| 110 | psf->read_double = host_read_f2d ; |
| 111 | break ; |
| 112 | |
| 113 | case (SF_ENDIAN_BIG + FLOAT_CAN_RW_LE) : |
| 114 | psf->data_endswap = SF_TRUE ; |
| 115 | psf->read_short = host_read_f2s ; |
| 116 | psf->read_int = host_read_f2i ; |
| 117 | psf->read_float = host_read_f ; |
| 118 | psf->read_double = host_read_f2d ; |
| 119 | break ; |
| 120 | |
| 121 | case (SF_ENDIAN_LITTLE + FLOAT_CAN_RW_BE) : |
| 122 | psf->data_endswap = SF_TRUE ; |
| 123 | psf->read_short = host_read_f2s ; |
| 124 | psf->read_int = host_read_f2i ; |
| 125 | psf->read_float = host_read_f ; |
| 126 | psf->read_double = host_read_f2d ; |
| 127 | break ; |
| 128 | |
| 129 | /* When the CPU is not IEEE compatible. */ |
| 130 | case (SF_ENDIAN_BIG + FLOAT_BROKEN_LE) : |
| 131 | psf->data_endswap = SF_TRUE ; |
| 132 | psf->read_short = replace_read_f2s ; |
| 133 | psf->read_int = replace_read_f2i ; |
| 134 | psf->read_float = replace_read_f ; |
| 135 | psf->read_double = replace_read_f2d ; |
| 136 | break ; |
| 137 | |
| 138 | case (SF_ENDIAN_LITTLE + FLOAT_BROKEN_LE) : |
| 139 | psf->data_endswap = SF_FALSE ; |
| 140 | psf->read_short = replace_read_f2s ; |
| 141 | psf->read_int = replace_read_f2i ; |
| 142 | psf->read_float = replace_read_f ; |
| 143 | psf->read_double = replace_read_f2d ; |
| 144 | break ; |
| 145 | |
| 146 | case (SF_ENDIAN_BIG + FLOAT_BROKEN_BE) : |
| 147 | psf->data_endswap = SF_FALSE ; |
| 148 | psf->read_short = replace_read_f2s ; |
| 149 | psf->read_int = replace_read_f2i ; |
| 150 | psf->read_float = replace_read_f ; |
| 151 | psf->read_double = replace_read_f2d ; |
| 152 | break ; |
| 153 | |
| 154 | case (SF_ENDIAN_LITTLE + FLOAT_BROKEN_BE) : |
| 155 | psf->data_endswap = SF_TRUE ; |
| 156 | psf->read_short = replace_read_f2s ; |
| 157 | psf->read_int = replace_read_f2i ; |
| 158 | psf->read_float = replace_read_f ; |
| 159 | psf->read_double = replace_read_f2d ; |
| 160 | break ; |
| 161 | |
| 162 | default : break ; |
| 163 | } ; |
| 164 | } ; |
| 165 | |
| 166 | if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) |
| 167 | { switch (psf->endian + float_caps) |
| 168 | { case (SF_ENDIAN_LITTLE + FLOAT_CAN_RW_LE) : |
| 169 | psf->data_endswap = SF_FALSE ; |
| 170 | psf->write_short = host_write_s2f ; |
| 171 | psf->write_int = host_write_i2f ; |
| 172 | psf->write_float = host_write_f ; |
| 173 | psf->write_double = host_write_d2f ; |
| 174 | break ; |
| 175 | |
| 176 | case (SF_ENDIAN_BIG + FLOAT_CAN_RW_BE) : |
| 177 | psf->data_endswap = SF_FALSE ; |
| 178 | psf->write_short = host_write_s2f ; |
| 179 | psf->write_int = host_write_i2f ; |
| 180 | psf->write_float = host_write_f ; |
| 181 | psf->write_double = host_write_d2f ; |
| 182 | break ; |
| 183 | |
| 184 | case (SF_ENDIAN_BIG + FLOAT_CAN_RW_LE) : |
| 185 | psf->data_endswap = SF_TRUE ; |
| 186 | psf->write_short = host_write_s2f ; |
| 187 | psf->write_int = host_write_i2f ; |
| 188 | psf->write_float = host_write_f ; |
| 189 | psf->write_double = host_write_d2f ; |
| 190 | break ; |
| 191 | |
| 192 | case (SF_ENDIAN_LITTLE + FLOAT_CAN_RW_BE) : |
| 193 | psf->data_endswap = SF_TRUE ; |
| 194 | psf->write_short = host_write_s2f ; |
| 195 | psf->write_int = host_write_i2f ; |
| 196 | psf->write_float = host_write_f ; |
| 197 | psf->write_double = host_write_d2f ; |
| 198 | break ; |
| 199 | |
| 200 | /* When the CPU is not IEEE compatible. */ |
| 201 | case (SF_ENDIAN_BIG + FLOAT_BROKEN_LE) : |
| 202 | psf->data_endswap = SF_TRUE ; |
| 203 | psf->write_short = replace_write_s2f ; |
| 204 | psf->write_int = replace_write_i2f ; |
| 205 | psf->write_float = replace_write_f ; |
| 206 | psf->write_double = replace_write_d2f ; |
| 207 | break ; |
| 208 | |
| 209 | case (SF_ENDIAN_LITTLE + FLOAT_BROKEN_LE) : |
| 210 | psf->data_endswap = SF_FALSE ; |
| 211 | psf->write_short = replace_write_s2f ; |
| 212 | psf->write_int = replace_write_i2f ; |
| 213 | psf->write_float = replace_write_f ; |
| 214 | psf->write_double = replace_write_d2f ; |
| 215 | break ; |
| 216 | |
| 217 | case (SF_ENDIAN_BIG + FLOAT_BROKEN_BE) : |
| 218 | psf->data_endswap = SF_FALSE ; |
| 219 | psf->write_short = replace_write_s2f ; |
| 220 | psf->write_int = replace_write_i2f ; |
| 221 | psf->write_float = replace_write_f ; |
| 222 | psf->write_double = replace_write_d2f ; |
| 223 | break ; |
| 224 | |
| 225 | case (SF_ENDIAN_LITTLE + FLOAT_BROKEN_BE) : |
| 226 | psf->data_endswap = SF_TRUE ; |
| 227 | psf->write_short = replace_write_s2f ; |
| 228 | psf->write_int = replace_write_i2f ; |
| 229 | psf->write_float = replace_write_f ; |
| 230 | psf->write_double = replace_write_d2f ; |
| 231 | break ; |
| 232 | |
| 233 | default : break ; |
| 234 | } ; |
| 235 | } ; |
| 236 | |
| 237 | if (psf->filelength > psf->dataoffset) |
| 238 | { psf->datalength = (psf->dataend > 0) ? psf->dataend - psf->dataoffset : |
| 239 | psf->filelength - psf->dataoffset ; |
| 240 | } |
| 241 | else |
| 242 | psf->datalength = 0 ; |
| 243 | |
| 244 | psf->sf.frames = psf->blockwidth > 0 ? psf->datalength / psf->blockwidth : 0 ; |
| 245 | |
| 246 | return 0 ; |
| 247 | } /* float32_init */ |
| 248 | |
| 249 | float |
| 250 | float32_be_read (unsigned char *cptr) |
| 251 | { int exponent, mantissa, negative ; |
| 252 | float fvalue ; |
| 253 | |
| 254 | negative = cptr [0] & 0x80 ; |
| 255 | exponent = ((cptr [0] & 0x7F) << 1) | ((cptr [1] & 0x80) ? 1 : 0) ; |
| 256 | mantissa = ((cptr [1] & 0x7F) << 16) | (cptr [2] << 8) | (cptr [3]) ; |
| 257 | |
| 258 | if (! (exponent || mantissa)) |
| 259 | return 0.0 ; |
| 260 | |
| 261 | mantissa |= 0x800000 ; |
| 262 | exponent = exponent ? exponent - 127 : 0 ; |
| 263 | |
| 264 | fvalue = mantissa ? ((float) mantissa) / ((float) 0x800000) : 0.0 ; |
| 265 | |
| 266 | if (negative) |
| 267 | fvalue *= -1 ; |
| 268 | |
| 269 | if (exponent > 0) |
| 270 | fvalue *= pow (2.0, exponent) ; |
| 271 | else if (exponent < 0) |
| 272 | fvalue /= pow (2.0, abs (exponent)) ; |
| 273 | |
| 274 | return fvalue ; |
| 275 | } /* float32_be_read */ |
| 276 | |
| 277 | float |
| 278 | float32_le_read (unsigned char *cptr) |
| 279 | { int exponent, mantissa, negative ; |
| 280 | float fvalue ; |
| 281 | |
| 282 | negative = cptr [3] & 0x80 ; |
| 283 | exponent = ((cptr [3] & 0x7F) << 1) | ((cptr [2] & 0x80) ? 1 : 0) ; |
| 284 | mantissa = ((cptr [2] & 0x7F) << 16) | (cptr [1] << 8) | (cptr [0]) ; |
| 285 | |
| 286 | if (! (exponent || mantissa)) |
| 287 | return 0.0 ; |
| 288 | |
| 289 | mantissa |= 0x800000 ; |
| 290 | exponent = exponent ? exponent - 127 : 0 ; |
| 291 | |
| 292 | fvalue = mantissa ? ((float) mantissa) / ((float) 0x800000) : 0.0 ; |
| 293 | |
| 294 | if (negative) |
| 295 | fvalue *= -1 ; |
| 296 | |
| 297 | if (exponent > 0) |
| 298 | fvalue *= pow (2.0, exponent) ; |
| 299 | else if (exponent < 0) |
| 300 | fvalue /= pow (2.0, abs (exponent)) ; |
| 301 | |
| 302 | return fvalue ; |
| 303 | } /* float32_le_read */ |
| 304 | |
| 305 | void |
| 306 | float32_le_write (float in, unsigned char *out) |
| 307 | { int exponent, mantissa, negative = 0 ; |
| 308 | |
| 309 | memset (out, 0, sizeof (int)) ; |
| 310 | |
| 311 | if (fabs (in) < 1e-30) |
| 312 | return ; |
| 313 | |
| 314 | if (in < 0.0) |
| 315 | { in *= -1.0 ; |
| 316 | negative = 1 ; |
| 317 | } ; |
| 318 | |
| 319 | in = frexp (in, &exponent) ; |
| 320 | |
| 321 | exponent += 126 ; |
| 322 | |
| 323 | in *= (float) 0x1000000 ; |
| 324 | mantissa = (((int) in) & 0x7FFFFF) ; |
| 325 | |
| 326 | if (negative) |
| 327 | out [3] |= 0x80 ; |
| 328 | |
| 329 | if (exponent & 0x01) |
| 330 | out [2] |= 0x80 ; |
| 331 | |
| 332 | out [0] = mantissa & 0xFF ; |
| 333 | out [1] = (mantissa >> 8) & 0xFF ; |
| 334 | out [2] |= (mantissa >> 16) & 0x7F ; |
| 335 | out [3] |= (exponent >> 1) & 0x7F ; |
| 336 | |
| 337 | return ; |
| 338 | } /* float32_le_write */ |
| 339 | |
| 340 | void |
| 341 | float32_be_write (float in, unsigned char *out) |
| 342 | { int exponent, mantissa, negative = 0 ; |
| 343 | |
| 344 | memset (out, 0, sizeof (int)) ; |
| 345 | |
| 346 | if (fabs (in) < 1e-30) |
| 347 | return ; |
| 348 | |
| 349 | if (in < 0.0) |
| 350 | { in *= -1.0 ; |
| 351 | negative = 1 ; |
| 352 | } ; |
| 353 | |
| 354 | in = frexp (in, &exponent) ; |
| 355 | |
| 356 | exponent += 126 ; |
| 357 | |
| 358 | in *= (float) 0x1000000 ; |
| 359 | mantissa = (((int) in) & 0x7FFFFF) ; |
| 360 | |
| 361 | if (negative) |
| 362 | out [0] |= 0x80 ; |
| 363 | |
| 364 | if (exponent & 0x01) |
| 365 | out [1] |= 0x80 ; |
| 366 | |
| 367 | out [3] = mantissa & 0xFF ; |
| 368 | out [2] = (mantissa >> 8) & 0xFF ; |
| 369 | out [1] |= (mantissa >> 16) & 0x7F ; |
| 370 | out [0] |= (exponent >> 1) & 0x7F ; |
| 371 | |
| 372 | return ; |
| 373 | } /* float32_be_write */ |
| 374 | |
| 375 | /*============================================================================================== |
| 376 | ** Private functions. |
| 377 | */ |
| 378 | |
| 379 | static void |
| 380 | float32_peak_update (SF_PRIVATE *psf, const float *buffer, int count, sf_count_t indx) |
| 381 | { int chan ; |
| 382 | int k, position ; |
| 383 | float fmaxval ; |
| 384 | |
| 385 | for (chan = 0 ; chan < psf->sf.channels ; chan++) |
| 386 | { fmaxval = fabs (buffer [chan]) ; |
| 387 | position = 0 ; |
| 388 | for (k = chan ; k < count ; k += psf->sf.channels) |
| 389 | if (fmaxval < fabs (buffer [k])) |
| 390 | { fmaxval = fabs (buffer [k]) ; |
| 391 | position = k ; |
| 392 | } ; |
| 393 | |
| 394 | if (fmaxval > psf->peak_info->peaks [chan].value) |
| 395 | { psf->peak_info->peaks [chan].value = fmaxval ; |
| 396 | psf->peak_info->peaks [chan].position = psf->write_current + indx + (position / psf->sf.channels) ; |
| 397 | } ; |
| 398 | } ; |
| 399 | |
| 400 | return ; |
| 401 | } /* float32_peak_update */ |
| 402 | |
| 403 | static int |
| 404 | float32_get_capability (SF_PRIVATE *psf) |
| 405 | { union |
| 406 | { float f ; |
| 407 | int i ; |
| 408 | unsigned char c [4] ; |
| 409 | } data ; |
| 410 | |
| 411 | data.f = (float) 1.23456789 ; /* Some abitrary value. */ |
| 412 | |
| 413 | if (! psf->ieee_replace) |
| 414 | { /* If this test is true ints and floats are compatible and little endian. */ |
| 415 | if (data.c [0] == 0x52 && data.c [1] == 0x06 && data.c [2] == 0x9e && data.c [3] == 0x3f) |
| 416 | return FLOAT_CAN_RW_LE ; |
| 417 | |
| 418 | /* If this test is true ints and floats are compatible and big endian. */ |
| 419 | if (data.c [3] == 0x52 && data.c [2] == 0x06 && data.c [1] == 0x9e && data.c [0] == 0x3f) |
| 420 | return FLOAT_CAN_RW_BE ; |
| 421 | } ; |
| 422 | |
| 423 | /* Floats are broken. Don't expect reading or writing to be fast. */ |
| 424 | psf_log_printf (psf, "Using IEEE replacement code for float.\n") ; |
| 425 | |
| 426 | return (CPU_IS_LITTLE_ENDIAN) ? FLOAT_BROKEN_LE : FLOAT_BROKEN_BE ; |
| 427 | } /* float32_get_capability */ |
| 428 | |
| 429 | /*======================================================================================= |
| 430 | */ |
| 431 | |
| 432 | static void |
| 433 | f2s_array (const float *src, int count, short *dest, float scale) |
| 434 | { |
| 435 | while (--count >= 0) |
| 436 | { dest [count] = lrintf (scale * src [count]) ; |
| 437 | } ; |
| 438 | } /* f2s_array */ |
| 439 | |
| 440 | static void |
| 441 | f2s_clip_array (const float *src, int count, short *dest, float scale) |
| 442 | { while (--count >= 0) |
| 443 | { float tmp = scale * src [count] ; |
| 444 | |
| 445 | if (CPU_CLIPS_POSITIVE == 0 && tmp > 32767.0) |
| 446 | dest [count] = SHRT_MAX ; |
| 447 | else if (CPU_CLIPS_NEGATIVE == 0 && tmp < -32768.0) |
| 448 | dest [count] = SHRT_MIN ; |
| 449 | else |
| 450 | dest [count] = lrintf (tmp) ; |
| 451 | } ; |
| 452 | } /* f2s_clip_array */ |
| 453 | |
| 454 | static inline void |
| 455 | f2i_array (const float *src, int count, int *dest, float scale) |
| 456 | { while (--count >= 0) |
| 457 | { dest [count] = lrintf (scale * src [count]) ; |
| 458 | } ; |
| 459 | } /* f2i_array */ |
| 460 | |
| 461 | static inline void |
| 462 | f2i_clip_array (const float *src, int count, int *dest, float scale) |
| 463 | { while (--count >= 0) |
| 464 | { float tmp = scale * src [count] ; |
| 465 | |
| 466 | if (CPU_CLIPS_POSITIVE == 0 && tmp > (1.0 * INT_MAX)) |
| 467 | dest [count] = INT_MAX ; |
| 468 | else if (CPU_CLIPS_NEGATIVE == 0 && tmp < (-1.0 * INT_MAX)) |
| 469 | dest [count] = INT_MIN ; |
| 470 | else |
| 471 | dest [count] = lrintf (tmp) ; |
| 472 | } ; |
| 473 | } /* f2i_clip_array */ |
| 474 | |
| 475 | static inline void |
| 476 | f2d_array (const float *src, int count, double *dest) |
| 477 | { while (--count >= 0) |
| 478 | { dest [count] = src [count] ; |
| 479 | } ; |
| 480 | } /* f2d_array */ |
| 481 | |
| 482 | static inline void |
| 483 | s2f_array (const short *src, float *dest, int count, float scale) |
| 484 | { while (--count >= 0) |
| 485 | { dest [count] = scale * src [count] ; |
| 486 | } ; |
| 487 | } /* s2f_array */ |
| 488 | |
| 489 | static inline void |
| 490 | i2f_array (const int *src, float *dest, int count, float scale) |
| 491 | { while (--count >= 0) |
| 492 | { dest [count] = scale * src [count] ; |
| 493 | } ; |
| 494 | } /* i2f_array */ |
| 495 | |
| 496 | static inline void |
| 497 | d2f_array (const double *src, float *dest, int count) |
| 498 | { while (--count >= 0) |
| 499 | { dest [count] = src [count] ; |
| 500 | } ; |
| 501 | } /* d2f_array */ |
| 502 | |
| 503 | /*---------------------------------------------------------------------------------------------- |
| 504 | */ |
| 505 | |
| 506 | static sf_count_t |
| 507 | host_read_f2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) |
| 508 | { void (*convert) (const float *, int, short *, float) ; |
| 509 | int bufferlen, readcount ; |
| 510 | sf_count_t total = 0 ; |
| 511 | float scale ; |
| 512 | |
| 513 | convert = (psf->add_clipping) ? f2s_clip_array : f2s_array ; |
| 514 | bufferlen = ARRAY_LEN (psf->u.fbuf) ; |
| 515 | scale = (psf->float_int_mult == 0) ? 1.0 : 0x7FFF / psf->float_max ; |
| 516 | |
| 517 | while (len > 0) |
| 518 | { if (len < bufferlen) |
| 519 | bufferlen = (int) len ; |
| 520 | readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ; |
| 521 | |
| 522 | /* Fix me : Need lef2s_array */ |
| 523 | if (psf->data_endswap == SF_TRUE) |
| 524 | endswap_int_array (psf->u.ibuf, bufferlen) ; |
| 525 | |
| 526 | convert (psf->u.fbuf, readcount, ptr + total, scale) ; |
| 527 | total += readcount ; |
| 528 | if (readcount < bufferlen) |
| 529 | break ; |
| 530 | len -= readcount ; |
| 531 | } ; |
| 532 | |
| 533 | return total ; |
| 534 | } /* host_read_f2s */ |
| 535 | |
| 536 | static sf_count_t |
| 537 | host_read_f2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) |
| 538 | { void (*convert) (const float *, int, int *, float) ; |
| 539 | int bufferlen, readcount ; |
| 540 | sf_count_t total = 0 ; |
| 541 | float scale ; |
| 542 | |
| 543 | convert = (psf->add_clipping) ? f2i_clip_array : f2i_array ; |
| 544 | bufferlen = ARRAY_LEN (psf->u.fbuf) ; |
| 545 | scale = (psf->float_int_mult == 0) ? 1.0 : 0x7FFFFFFF / psf->float_max ; |
| 546 | |
| 547 | while (len > 0) |
| 548 | { if (len < bufferlen) |
| 549 | bufferlen = (int) len ; |
| 550 | readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ; |
| 551 | |
| 552 | if (psf->data_endswap == SF_TRUE) |
| 553 | endswap_int_array (psf->u.ibuf, bufferlen) ; |
| 554 | |
| 555 | convert (psf->u.fbuf, readcount, ptr + total, scale) ; |
| 556 | total += readcount ; |
| 557 | if (readcount < bufferlen) |
| 558 | break ; |
| 559 | len -= readcount ; |
| 560 | } ; |
| 561 | |
| 562 | return total ; |
| 563 | } /* host_read_f2i */ |
| 564 | |
| 565 | static sf_count_t |
| 566 | host_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) |
| 567 | { int bufferlen, readcount ; |
| 568 | sf_count_t total = 0 ; |
| 569 | |
| 570 | if (psf->data_endswap != SF_TRUE) |
| 571 | return psf_fread (ptr, sizeof (float), len, psf) ; |
| 572 | |
| 573 | bufferlen = ARRAY_LEN (psf->u.fbuf) ; |
| 574 | |
| 575 | while (len > 0) |
| 576 | { if (len < bufferlen) |
| 577 | bufferlen = (int) len ; |
| 578 | readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ; |
| 579 | |
| 580 | endswap_int_copy ((int*) (ptr + total), psf->u.ibuf, readcount) ; |
| 581 | |
| 582 | total += readcount ; |
| 583 | if (readcount < bufferlen) |
| 584 | break ; |
| 585 | len -= readcount ; |
| 586 | } ; |
| 587 | |
| 588 | return total ; |
| 589 | } /* host_read_f */ |
| 590 | |
| 591 | static sf_count_t |
| 592 | host_read_f2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) |
| 593 | { int bufferlen, readcount ; |
| 594 | sf_count_t total = 0 ; |
| 595 | |
| 596 | bufferlen = ARRAY_LEN (psf->u.fbuf) ; |
| 597 | |
| 598 | while (len > 0) |
| 599 | { if (len < bufferlen) |
| 600 | bufferlen = (int) len ; |
| 601 | readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ; |
| 602 | |
| 603 | if (psf->data_endswap == SF_TRUE) |
| 604 | endswap_int_array (psf->u.ibuf, bufferlen) ; |
| 605 | |
| 606 | /* Fix me : Need lef2d_array */ |
| 607 | f2d_array (psf->u.fbuf, readcount, ptr + total) ; |
| 608 | total += readcount ; |
| 609 | if (readcount < bufferlen) |
| 610 | break ; |
| 611 | len -= readcount ; |
| 612 | } ; |
| 613 | |
| 614 | return total ; |
| 615 | } /* host_read_f2d */ |
| 616 | |
| 617 | static sf_count_t |
| 618 | host_write_s2f (SF_PRIVATE *psf, const short *ptr, sf_count_t len) |
| 619 | { int bufferlen, writecount ; |
| 620 | sf_count_t total = 0 ; |
| 621 | float scale ; |
| 622 | |
| 623 | /* Erik */ |
| 624 | scale = (psf->scale_int_float == 0) ? 1.0 : 1.0 / 0x8000 ; |
| 625 | bufferlen = ARRAY_LEN (psf->u.fbuf) ; |
| 626 | |
| 627 | while (len > 0) |
| 628 | { if (len < bufferlen) |
| 629 | bufferlen = (int) len ; |
| 630 | s2f_array (ptr + total, psf->u.fbuf, bufferlen, scale) ; |
| 631 | |
| 632 | if (psf->peak_info) |
| 633 | float32_peak_update (psf, psf->u.fbuf, bufferlen, total / psf->sf.channels) ; |
| 634 | |
| 635 | if (psf->data_endswap == SF_TRUE) |
| 636 | endswap_int_array (psf->u.ibuf, bufferlen) ; |
| 637 | |
| 638 | writecount = psf_fwrite (psf->u.fbuf, sizeof (float), bufferlen, psf) ; |
| 639 | total += writecount ; |
| 640 | if (writecount < bufferlen) |
| 641 | break ; |
| 642 | len -= writecount ; |
| 643 | } ; |
| 644 | |
| 645 | return total ; |
| 646 | } /* host_write_s2f */ |
| 647 | |
| 648 | static sf_count_t |
| 649 | host_write_i2f (SF_PRIVATE *psf, const int *ptr, sf_count_t len) |
| 650 | { int bufferlen, writecount ; |
| 651 | sf_count_t total = 0 ; |
| 652 | float scale ; |
| 653 | |
| 654 | scale = (psf->scale_int_float == 0) ? 1.0 : 1.0 / (8.0 * 0x10000000) ; |
| 655 | bufferlen = ARRAY_LEN (psf->u.fbuf) ; |
| 656 | |
| 657 | while (len > 0) |
| 658 | { if (len < bufferlen) |
| 659 | bufferlen = (int) len ; |
| 660 | i2f_array (ptr + total, psf->u.fbuf, bufferlen, scale) ; |
| 661 | |
| 662 | if (psf->peak_info) |
| 663 | float32_peak_update (psf, psf->u.fbuf, bufferlen, total / psf->sf.channels) ; |
| 664 | |
| 665 | if (psf->data_endswap == SF_TRUE) |
| 666 | endswap_int_array (psf->u.ibuf, bufferlen) ; |
| 667 | |
| 668 | writecount = psf_fwrite (psf->u.fbuf, sizeof (float) , bufferlen, psf) ; |
| 669 | total += writecount ; |
| 670 | if (writecount < bufferlen) |
| 671 | break ; |
| 672 | len -= writecount ; |
| 673 | } ; |
| 674 | |
| 675 | return total ; |
| 676 | } /* host_write_i2f */ |
| 677 | |
| 678 | static sf_count_t |
| 679 | host_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) |
| 680 | { int bufferlen, writecount ; |
| 681 | sf_count_t total = 0 ; |
| 682 | |
| 683 | if (psf->peak_info) |
| 684 | float32_peak_update (psf, ptr, len, 0) ; |
| 685 | |
| 686 | if (psf->data_endswap != SF_TRUE) |
| 687 | return psf_fwrite (ptr, sizeof (float), len, psf) ; |
| 688 | |
| 689 | bufferlen = ARRAY_LEN (psf->u.fbuf) ; |
| 690 | |
| 691 | while (len > 0) |
| 692 | { if (len < bufferlen) |
| 693 | bufferlen = (int) len ; |
| 694 | |
| 695 | endswap_int_copy (psf->u.ibuf, (const int*) (ptr + total), bufferlen) ; |
| 696 | |
| 697 | writecount = psf_fwrite (psf->u.fbuf, sizeof (float), bufferlen, psf) ; |
| 698 | total += writecount ; |
| 699 | if (writecount < bufferlen) |
| 700 | break ; |
| 701 | len -= writecount ; |
| 702 | } ; |
| 703 | |
| 704 | return total ; |
| 705 | } /* host_write_f */ |
| 706 | |
| 707 | static sf_count_t |
| 708 | host_write_d2f (SF_PRIVATE *psf, const double *ptr, sf_count_t len) |
| 709 | { int bufferlen, writecount ; |
| 710 | sf_count_t total = 0 ; |
| 711 | |
| 712 | bufferlen = ARRAY_LEN (psf->u.fbuf) ; |
| 713 | |
| 714 | while (len > 0) |
| 715 | { if (len < bufferlen) |
| 716 | bufferlen = (int) len ; |
| 717 | |
| 718 | d2f_array (ptr + total, psf->u.fbuf, bufferlen) ; |
| 719 | |
| 720 | if (psf->peak_info) |
| 721 | float32_peak_update (psf, psf->u.fbuf, bufferlen, total / psf->sf.channels) ; |
| 722 | |
| 723 | if (psf->data_endswap == SF_TRUE) |
| 724 | endswap_int_array (psf->u.ibuf, bufferlen) ; |
| 725 | |
| 726 | writecount = psf_fwrite (psf->u.fbuf, sizeof (float), bufferlen, psf) ; |
| 727 | total += writecount ; |
| 728 | if (writecount < bufferlen) |
| 729 | break ; |
| 730 | len -= writecount ; |
| 731 | } ; |
| 732 | |
| 733 | return total ; |
| 734 | } /* host_write_d2f */ |
| 735 | |
| 736 | /*======================================================================================= |
| 737 | */ |
| 738 | |
| 739 | static sf_count_t |
| 740 | replace_read_f2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) |
| 741 | { int bufferlen, readcount ; |
| 742 | sf_count_t total = 0 ; |
| 743 | float scale ; |
| 744 | |
| 745 | bufferlen = ARRAY_LEN (psf->u.fbuf) ; |
| 746 | scale = (psf->float_int_mult == 0) ? 1.0 : 0x7FFF / psf->float_max ; |
| 747 | |
| 748 | while (len > 0) |
| 749 | { if (len < bufferlen) |
| 750 | bufferlen = (int) len ; |
| 751 | readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ; |
| 752 | |
| 753 | if (psf->data_endswap == SF_TRUE) |
| 754 | endswap_int_array (psf->u.ibuf, bufferlen) ; |
| 755 | |
| 756 | bf2f_array (psf->u.fbuf, bufferlen) ; |
| 757 | |
| 758 | f2s_array (psf->u.fbuf, readcount, ptr + total, scale) ; |
| 759 | total += readcount ; |
| 760 | if (readcount < bufferlen) |
| 761 | break ; |
| 762 | len -= readcount ; |
| 763 | } ; |
| 764 | |
| 765 | return total ; |
| 766 | } /* replace_read_f2s */ |
| 767 | |
| 768 | static sf_count_t |
| 769 | replace_read_f2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) |
| 770 | { int bufferlen, readcount ; |
| 771 | sf_count_t total = 0 ; |
| 772 | float scale ; |
| 773 | |
| 774 | bufferlen = ARRAY_LEN (psf->u.fbuf) ; |
| 775 | scale = (psf->float_int_mult == 0) ? 1.0 : 0x7FFF / psf->float_max ; |
| 776 | |
| 777 | while (len > 0) |
| 778 | { if (len < bufferlen) |
| 779 | bufferlen = (int) len ; |
| 780 | readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ; |
| 781 | |
| 782 | if (psf->data_endswap == SF_TRUE) |
| 783 | endswap_int_array (psf->u.ibuf, bufferlen) ; |
| 784 | |
| 785 | bf2f_array (psf->u.fbuf, bufferlen) ; |
| 786 | |
| 787 | f2i_array (psf->u.fbuf, readcount, ptr + total, scale) ; |
| 788 | total += readcount ; |
| 789 | if (readcount < bufferlen) |
| 790 | break ; |
| 791 | len -= readcount ; |
| 792 | } ; |
| 793 | |
| 794 | return total ; |
| 795 | } /* replace_read_f2i */ |
| 796 | |
| 797 | static sf_count_t |
| 798 | replace_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) |
| 799 | { int bufferlen, readcount ; |
| 800 | sf_count_t total = 0 ; |
| 801 | |
| 802 | /* FIX THIS */ |
| 803 | |
| 804 | bufferlen = ARRAY_LEN (psf->u.fbuf) ; |
| 805 | |
| 806 | while (len > 0) |
| 807 | { if (len < bufferlen) |
| 808 | bufferlen = (int) len ; |
| 809 | readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ; |
| 810 | |
| 811 | if (psf->data_endswap == SF_TRUE) |
| 812 | endswap_int_array (psf->u.ibuf, bufferlen) ; |
| 813 | |
| 814 | bf2f_array (psf->u.fbuf, bufferlen) ; |
| 815 | |
| 816 | memcpy (ptr + total, psf->u.fbuf, bufferlen * sizeof (float)) ; |
| 817 | |
| 818 | total += readcount ; |
| 819 | if (readcount < bufferlen) |
| 820 | break ; |
| 821 | len -= readcount ; |
| 822 | } ; |
| 823 | |
| 824 | return total ; |
| 825 | } /* replace_read_f */ |
| 826 | |
| 827 | static sf_count_t |
| 828 | replace_read_f2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) |
| 829 | { int bufferlen, readcount ; |
| 830 | sf_count_t total = 0 ; |
| 831 | |
| 832 | bufferlen = ARRAY_LEN (psf->u.fbuf) ; |
| 833 | |
| 834 | while (len > 0) |
| 835 | { if (len < bufferlen) |
| 836 | bufferlen = (int) len ; |
| 837 | readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ; |
| 838 | |
| 839 | if (psf->data_endswap == SF_TRUE) |
| 840 | endswap_int_array (psf->u.ibuf, bufferlen) ; |
| 841 | |
| 842 | bf2f_array (psf->u.fbuf, bufferlen) ; |
| 843 | |
| 844 | f2d_array (psf->u.fbuf, readcount, ptr + total) ; |
| 845 | total += readcount ; |
| 846 | if (readcount < bufferlen) |
| 847 | break ; |
| 848 | len -= readcount ; |
| 849 | } ; |
| 850 | |
| 851 | return total ; |
| 852 | } /* replace_read_f2d */ |
| 853 | |
| 854 | static sf_count_t |
| 855 | replace_write_s2f (SF_PRIVATE *psf, const short *ptr, sf_count_t len) |
| 856 | { int bufferlen, writecount ; |
| 857 | sf_count_t total = 0 ; |
| 858 | float scale ; |
| 859 | |
| 860 | scale = (psf->scale_int_float == 0) ? 1.0 : 1.0 / 0x8000 ; |
| 861 | bufferlen = ARRAY_LEN (psf->u.fbuf) ; |
| 862 | |
| 863 | while (len > 0) |
| 864 | { if (len < bufferlen) |
| 865 | bufferlen = (int) len ; |
| 866 | s2f_array (ptr + total, psf->u.fbuf, bufferlen, scale) ; |
| 867 | |
| 868 | if (psf->peak_info) |
| 869 | float32_peak_update (psf, psf->u.fbuf, bufferlen, total / psf->sf.channels) ; |
| 870 | |
| 871 | f2bf_array (psf->u.fbuf, bufferlen) ; |
| 872 | |
| 873 | if (psf->data_endswap == SF_TRUE) |
| 874 | endswap_int_array (psf->u.ibuf, bufferlen) ; |
| 875 | |
| 876 | writecount = psf_fwrite (psf->u.fbuf, sizeof (float), bufferlen, psf) ; |
| 877 | total += writecount ; |
| 878 | if (writecount < bufferlen) |
| 879 | break ; |
| 880 | len -= writecount ; |
| 881 | } ; |
| 882 | |
| 883 | return total ; |
| 884 | } /* replace_write_s2f */ |
| 885 | |
| 886 | static sf_count_t |
| 887 | replace_write_i2f (SF_PRIVATE *psf, const int *ptr, sf_count_t len) |
| 888 | { int bufferlen, writecount ; |
| 889 | sf_count_t total = 0 ; |
| 890 | float scale ; |
| 891 | |
| 892 | scale = (psf->scale_int_float == 0) ? 1.0 : 1.0 / (8.0 * 0x10000000) ; |
| 893 | bufferlen = ARRAY_LEN (psf->u.fbuf) ; |
| 894 | |
| 895 | while (len > 0) |
| 896 | { if (len < bufferlen) |
| 897 | bufferlen = (int) len ; |
| 898 | i2f_array (ptr + total, psf->u.fbuf, bufferlen, scale) ; |
| 899 | |
| 900 | if (psf->peak_info) |
| 901 | float32_peak_update (psf, psf->u.fbuf, bufferlen, total / psf->sf.channels) ; |
| 902 | |
| 903 | f2bf_array (psf->u.fbuf, bufferlen) ; |
| 904 | |
| 905 | if (psf->data_endswap == SF_TRUE) |
| 906 | endswap_int_array (psf->u.ibuf, bufferlen) ; |
| 907 | |
| 908 | writecount = psf_fwrite (psf->u.fbuf, sizeof (float), bufferlen, psf) ; |
| 909 | total += writecount ; |
| 910 | if (writecount < bufferlen) |
| 911 | break ; |
| 912 | len -= writecount ; |
| 913 | } ; |
| 914 | |
| 915 | return total ; |
| 916 | } /* replace_write_i2f */ |
| 917 | |
| 918 | static sf_count_t |
| 919 | replace_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) |
| 920 | { int bufferlen, writecount ; |
| 921 | sf_count_t total = 0 ; |
| 922 | |
| 923 | /* FIX THIS */ |
| 924 | if (psf->peak_info) |
| 925 | float32_peak_update (psf, ptr, len, 0) ; |
| 926 | |
| 927 | bufferlen = ARRAY_LEN (psf->u.fbuf) ; |
| 928 | |
| 929 | while (len > 0) |
| 930 | { if (len < bufferlen) |
| 931 | bufferlen = (int) len ; |
| 932 | |
| 933 | memcpy (psf->u.fbuf, ptr + total, bufferlen * sizeof (float)) ; |
| 934 | |
| 935 | f2bf_array (psf->u.fbuf, bufferlen) ; |
| 936 | |
| 937 | if (psf->data_endswap == SF_TRUE) |
| 938 | endswap_int_array (psf->u.ibuf, bufferlen) ; |
| 939 | |
| 940 | writecount = psf_fwrite (psf->u.fbuf, sizeof (float) , bufferlen, psf) ; |
| 941 | total += writecount ; |
| 942 | if (writecount < bufferlen) |
| 943 | break ; |
| 944 | len -= writecount ; |
| 945 | } ; |
| 946 | |
| 947 | return total ; |
| 948 | } /* replace_write_f */ |
| 949 | |
| 950 | static sf_count_t |
| 951 | replace_write_d2f (SF_PRIVATE *psf, const double *ptr, sf_count_t len) |
| 952 | { int bufferlen, writecount ; |
| 953 | sf_count_t total = 0 ; |
| 954 | |
| 955 | bufferlen = ARRAY_LEN (psf->u.fbuf) ; |
| 956 | |
| 957 | while (len > 0) |
| 958 | { if (len < bufferlen) |
| 959 | bufferlen = (int) len ; |
| 960 | d2f_array (ptr + total, psf->u.fbuf, bufferlen) ; |
| 961 | |
| 962 | if (psf->peak_info) |
| 963 | float32_peak_update (psf, psf->u.fbuf, bufferlen, total / psf->sf.channels) ; |
| 964 | |
| 965 | f2bf_array (psf->u.fbuf, bufferlen) ; |
| 966 | |
| 967 | if (psf->data_endswap == SF_TRUE) |
| 968 | endswap_int_array (psf->u.ibuf, bufferlen) ; |
| 969 | |
| 970 | writecount = psf_fwrite (psf->u.fbuf, sizeof (float), bufferlen, psf) ; |
| 971 | total += writecount ; |
| 972 | if (writecount < bufferlen) |
| 973 | break ; |
| 974 | len -= writecount ; |
| 975 | } ; |
| 976 | |
| 977 | return total ; |
| 978 | } /* replace_write_d2f */ |
| 979 | |
| 980 | /*---------------------------------------------------------------------------------------------- |
| 981 | */ |
| 982 | |
| 983 | static void |
| 984 | bf2f_array (float *buffer, int count) |
| 985 | { while (--count >= 0) |
| 986 | { buffer [count] = FLOAT32_READ ((unsigned char *) (buffer + count)) ; |
| 987 | } ; |
| 988 | } /* bf2f_array */ |
| 989 | |
| 990 | static void |
| 991 | f2bf_array (float *buffer, int count) |
| 992 | { while (--count >= 0) |
| 993 | { FLOAT32_WRITE (buffer [count], (unsigned char*) (buffer + count)) ; |
| 994 | } ; |
| 995 | } /* f2bf_array */ |
| 996 | |