+++ /dev/null
-/*
-** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com>
-**
-** This program is free software; you can redistribute it and/or modify
-** it under the terms of the GNU Lesser General Public License as published by
-** the Free Software Foundation; either version 2.1 of the License, or
-** (at your option) any later version.
-**
-** This program is distributed in the hope that it will be useful,
-** but WITHOUT ANY WARRANTY; without even the implied warranty of
-** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-** GNU Lesser General Public License for more details.
-**
-** You should have received a copy of the GNU Lesser General Public License
-** along with this program; if not, write to the Free Software
-** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-*/
-
-#include "sfconfig.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <limits.h>
-#include <math.h>
-
-#include "sndfile.h"
-#include "sfendian.h"
-#include "common.h"
-
-#if CPU_IS_LITTLE_ENDIAN
- #define FLOAT32_READ float32_le_read
- #define FLOAT32_WRITE float32_le_write
-#elif CPU_IS_BIG_ENDIAN
- #define FLOAT32_READ float32_be_read
- #define FLOAT32_WRITE float32_be_write
-#endif
-
-/*--------------------------------------------------------------------------------------------
-** Processor floating point capabilities. float32_get_capability () returns one of the
-** latter four values.
-*/
-
-enum
-{ FLOAT_UNKNOWN = 0x00,
- FLOAT_CAN_RW_LE = 0x12,
- FLOAT_CAN_RW_BE = 0x23,
- FLOAT_BROKEN_LE = 0x34,
- FLOAT_BROKEN_BE = 0x45
-} ;
-
-/*--------------------------------------------------------------------------------------------
-** Prototypes for private functions.
-*/
-
-static sf_count_t host_read_f2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ;
-static sf_count_t host_read_f2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ;
-static sf_count_t host_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ;
-static sf_count_t host_read_f2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ;
-
-static sf_count_t host_write_s2f (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ;
-static sf_count_t host_write_i2f (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ;
-static sf_count_t host_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ;
-static sf_count_t host_write_d2f (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ;
-
-static void float32_peak_update (SF_PRIVATE *psf, const float *buffer, int count, sf_count_t indx) ;
-
-static sf_count_t replace_read_f2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ;
-static sf_count_t replace_read_f2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ;
-static sf_count_t replace_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ;
-static sf_count_t replace_read_f2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ;
-
-static sf_count_t replace_write_s2f (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ;
-static sf_count_t replace_write_i2f (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ;
-static sf_count_t replace_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ;
-static sf_count_t replace_write_d2f (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ;
-
-static void bf2f_array (float *buffer, int count) ;
-static void f2bf_array (float *buffer, int count) ;
-
-static int float32_get_capability (SF_PRIVATE *psf) ;
-
-/*--------------------------------------------------------------------------------------------
-** Exported functions.
-*/
-
-int
-float32_init (SF_PRIVATE *psf)
-{ static int float_caps ;
-
- float_caps = float32_get_capability (psf) ;
-
- psf->blockwidth = sizeof (float) * psf->sf.channels ;
-
- if (psf->file.mode == SFM_READ || psf->file.mode == SFM_RDWR)
- { switch (psf->endian + float_caps)
- { case (SF_ENDIAN_BIG + FLOAT_CAN_RW_BE) :
- psf->data_endswap = SF_FALSE ;
- psf->read_short = host_read_f2s ;
- psf->read_int = host_read_f2i ;
- psf->read_float = host_read_f ;
- psf->read_double = host_read_f2d ;
- break ;
-
- case (SF_ENDIAN_LITTLE + FLOAT_CAN_RW_LE) :
- psf->data_endswap = SF_FALSE ;
- psf->read_short = host_read_f2s ;
- psf->read_int = host_read_f2i ;
- psf->read_float = host_read_f ;
- psf->read_double = host_read_f2d ;
- break ;
-
- case (SF_ENDIAN_BIG + FLOAT_CAN_RW_LE) :
- psf->data_endswap = SF_TRUE ;
- psf->read_short = host_read_f2s ;
- psf->read_int = host_read_f2i ;
- psf->read_float = host_read_f ;
- psf->read_double = host_read_f2d ;
- break ;
-
- case (SF_ENDIAN_LITTLE + FLOAT_CAN_RW_BE) :
- psf->data_endswap = SF_TRUE ;
- psf->read_short = host_read_f2s ;
- psf->read_int = host_read_f2i ;
- psf->read_float = host_read_f ;
- psf->read_double = host_read_f2d ;
- break ;
-
- /* When the CPU is not IEEE compatible. */
- case (SF_ENDIAN_BIG + FLOAT_BROKEN_LE) :
- psf->data_endswap = SF_TRUE ;
- psf->read_short = replace_read_f2s ;
- psf->read_int = replace_read_f2i ;
- psf->read_float = replace_read_f ;
- psf->read_double = replace_read_f2d ;
- break ;
-
- case (SF_ENDIAN_LITTLE + FLOAT_BROKEN_LE) :
- psf->data_endswap = SF_FALSE ;
- psf->read_short = replace_read_f2s ;
- psf->read_int = replace_read_f2i ;
- psf->read_float = replace_read_f ;
- psf->read_double = replace_read_f2d ;
- break ;
-
- case (SF_ENDIAN_BIG + FLOAT_BROKEN_BE) :
- psf->data_endswap = SF_FALSE ;
- psf->read_short = replace_read_f2s ;
- psf->read_int = replace_read_f2i ;
- psf->read_float = replace_read_f ;
- psf->read_double = replace_read_f2d ;
- break ;
-
- case (SF_ENDIAN_LITTLE + FLOAT_BROKEN_BE) :
- psf->data_endswap = SF_TRUE ;
- psf->read_short = replace_read_f2s ;
- psf->read_int = replace_read_f2i ;
- psf->read_float = replace_read_f ;
- psf->read_double = replace_read_f2d ;
- break ;
-
- default : break ;
- } ;
- } ;
-
- if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
- { switch (psf->endian + float_caps)
- { case (SF_ENDIAN_LITTLE + FLOAT_CAN_RW_LE) :
- psf->data_endswap = SF_FALSE ;
- psf->write_short = host_write_s2f ;
- psf->write_int = host_write_i2f ;
- psf->write_float = host_write_f ;
- psf->write_double = host_write_d2f ;
- break ;
-
- case (SF_ENDIAN_BIG + FLOAT_CAN_RW_BE) :
- psf->data_endswap = SF_FALSE ;
- psf->write_short = host_write_s2f ;
- psf->write_int = host_write_i2f ;
- psf->write_float = host_write_f ;
- psf->write_double = host_write_d2f ;
- break ;
-
- case (SF_ENDIAN_BIG + FLOAT_CAN_RW_LE) :
- psf->data_endswap = SF_TRUE ;
- psf->write_short = host_write_s2f ;
- psf->write_int = host_write_i2f ;
- psf->write_float = host_write_f ;
- psf->write_double = host_write_d2f ;
- break ;
-
- case (SF_ENDIAN_LITTLE + FLOAT_CAN_RW_BE) :
- psf->data_endswap = SF_TRUE ;
- psf->write_short = host_write_s2f ;
- psf->write_int = host_write_i2f ;
- psf->write_float = host_write_f ;
- psf->write_double = host_write_d2f ;
- break ;
-
- /* When the CPU is not IEEE compatible. */
- case (SF_ENDIAN_BIG + FLOAT_BROKEN_LE) :
- psf->data_endswap = SF_TRUE ;
- psf->write_short = replace_write_s2f ;
- psf->write_int = replace_write_i2f ;
- psf->write_float = replace_write_f ;
- psf->write_double = replace_write_d2f ;
- break ;
-
- case (SF_ENDIAN_LITTLE + FLOAT_BROKEN_LE) :
- psf->data_endswap = SF_FALSE ;
- psf->write_short = replace_write_s2f ;
- psf->write_int = replace_write_i2f ;
- psf->write_float = replace_write_f ;
- psf->write_double = replace_write_d2f ;
- break ;
-
- case (SF_ENDIAN_BIG + FLOAT_BROKEN_BE) :
- psf->data_endswap = SF_FALSE ;
- psf->write_short = replace_write_s2f ;
- psf->write_int = replace_write_i2f ;
- psf->write_float = replace_write_f ;
- psf->write_double = replace_write_d2f ;
- break ;
-
- case (SF_ENDIAN_LITTLE + FLOAT_BROKEN_BE) :
- psf->data_endswap = SF_TRUE ;
- psf->write_short = replace_write_s2f ;
- psf->write_int = replace_write_i2f ;
- psf->write_float = replace_write_f ;
- psf->write_double = replace_write_d2f ;
- break ;
-
- default : break ;
- } ;
- } ;
-
- if (psf->filelength > psf->dataoffset)
- { psf->datalength = (psf->dataend > 0) ? psf->dataend - psf->dataoffset :
- psf->filelength - psf->dataoffset ;
- }
- else
- psf->datalength = 0 ;
-
- psf->sf.frames = psf->blockwidth > 0 ? psf->datalength / psf->blockwidth : 0 ;
-
- return 0 ;
-} /* float32_init */
-
-float
-float32_be_read (unsigned char *cptr)
-{ int exponent, mantissa, negative ;
- float fvalue ;
-
- negative = cptr [0] & 0x80 ;
- exponent = ((cptr [0] & 0x7F) << 1) | ((cptr [1] & 0x80) ? 1 : 0) ;
- mantissa = ((cptr [1] & 0x7F) << 16) | (cptr [2] << 8) | (cptr [3]) ;
-
- if (! (exponent || mantissa))
- return 0.0 ;
-
- mantissa |= 0x800000 ;
- exponent = exponent ? exponent - 127 : 0 ;
-
- fvalue = mantissa ? ((float) mantissa) / ((float) 0x800000) : 0.0 ;
-
- if (negative)
- fvalue *= -1 ;
-
- if (exponent > 0)
- fvalue *= pow (2.0, exponent) ;
- else if (exponent < 0)
- fvalue /= pow (2.0, abs (exponent)) ;
-
- return fvalue ;
-} /* float32_be_read */
-
-float
-float32_le_read (unsigned char *cptr)
-{ int exponent, mantissa, negative ;
- float fvalue ;
-
- negative = cptr [3] & 0x80 ;
- exponent = ((cptr [3] & 0x7F) << 1) | ((cptr [2] & 0x80) ? 1 : 0) ;
- mantissa = ((cptr [2] & 0x7F) << 16) | (cptr [1] << 8) | (cptr [0]) ;
-
- if (! (exponent || mantissa))
- return 0.0 ;
-
- mantissa |= 0x800000 ;
- exponent = exponent ? exponent - 127 : 0 ;
-
- fvalue = mantissa ? ((float) mantissa) / ((float) 0x800000) : 0.0 ;
-
- if (negative)
- fvalue *= -1 ;
-
- if (exponent > 0)
- fvalue *= pow (2.0, exponent) ;
- else if (exponent < 0)
- fvalue /= pow (2.0, abs (exponent)) ;
-
- return fvalue ;
-} /* float32_le_read */
-
-void
-float32_le_write (float in, unsigned char *out)
-{ int exponent, mantissa, negative = 0 ;
-
- memset (out, 0, sizeof (int)) ;
-
- if (fabs (in) < 1e-30)
- return ;
-
- if (in < 0.0)
- { in *= -1.0 ;
- negative = 1 ;
- } ;
-
- in = frexp (in, &exponent) ;
-
- exponent += 126 ;
-
- in *= (float) 0x1000000 ;
- mantissa = (((int) in) & 0x7FFFFF) ;
-
- if (negative)
- out [3] |= 0x80 ;
-
- if (exponent & 0x01)
- out [2] |= 0x80 ;
-
- out [0] = mantissa & 0xFF ;
- out [1] = (mantissa >> 8) & 0xFF ;
- out [2] |= (mantissa >> 16) & 0x7F ;
- out [3] |= (exponent >> 1) & 0x7F ;
-
- return ;
-} /* float32_le_write */
-
-void
-float32_be_write (float in, unsigned char *out)
-{ int exponent, mantissa, negative = 0 ;
-
- memset (out, 0, sizeof (int)) ;
-
- if (fabs (in) < 1e-30)
- return ;
-
- if (in < 0.0)
- { in *= -1.0 ;
- negative = 1 ;
- } ;
-
- in = frexp (in, &exponent) ;
-
- exponent += 126 ;
-
- in *= (float) 0x1000000 ;
- mantissa = (((int) in) & 0x7FFFFF) ;
-
- if (negative)
- out [0] |= 0x80 ;
-
- if (exponent & 0x01)
- out [1] |= 0x80 ;
-
- out [3] = mantissa & 0xFF ;
- out [2] = (mantissa >> 8) & 0xFF ;
- out [1] |= (mantissa >> 16) & 0x7F ;
- out [0] |= (exponent >> 1) & 0x7F ;
-
- return ;
-} /* float32_be_write */
-
-/*==============================================================================================
-** Private functions.
-*/
-
-static void
-float32_peak_update (SF_PRIVATE *psf, const float *buffer, int count, sf_count_t indx)
-{ int chan ;
- int k, position ;
- float fmaxval ;
-
- for (chan = 0 ; chan < psf->sf.channels ; chan++)
- { fmaxval = fabs (buffer [chan]) ;
- position = 0 ;
- for (k = chan ; k < count ; k += psf->sf.channels)
- if (fmaxval < fabs (buffer [k]))
- { fmaxval = fabs (buffer [k]) ;
- position = k ;
- } ;
-
- if (fmaxval > psf->peak_info->peaks [chan].value)
- { psf->peak_info->peaks [chan].value = fmaxval ;
- psf->peak_info->peaks [chan].position = psf->write_current + indx + (position / psf->sf.channels) ;
- } ;
- } ;
-
- return ;
-} /* float32_peak_update */
-
-static int
-float32_get_capability (SF_PRIVATE *psf)
-{ union
- { float f ;
- int i ;
- unsigned char c [4] ;
- } data ;
-
- data.f = (float) 1.23456789 ; /* Some abitrary value. */
-
- if (! psf->ieee_replace)
- { /* If this test is true ints and floats are compatible and little endian. */
- if (data.c [0] == 0x52 && data.c [1] == 0x06 && data.c [2] == 0x9e && data.c [3] == 0x3f)
- return FLOAT_CAN_RW_LE ;
-
- /* If this test is true ints and floats are compatible and big endian. */
- if (data.c [3] == 0x52 && data.c [2] == 0x06 && data.c [1] == 0x9e && data.c [0] == 0x3f)
- return FLOAT_CAN_RW_BE ;
- } ;
-
- /* Floats are broken. Don't expect reading or writing to be fast. */
- psf_log_printf (psf, "Using IEEE replacement code for float.\n") ;
-
- return (CPU_IS_LITTLE_ENDIAN) ? FLOAT_BROKEN_LE : FLOAT_BROKEN_BE ;
-} /* float32_get_capability */
-
-/*=======================================================================================
-*/
-
-static void
-f2s_array (const float *src, int count, short *dest, float scale)
-{
- while (--count >= 0)
- { dest [count] = lrintf (scale * src [count]) ;
- } ;
-} /* f2s_array */
-
-static void
-f2s_clip_array (const float *src, int count, short *dest, float scale)
-{ while (--count >= 0)
- { float tmp = scale * src [count] ;
-
- if (CPU_CLIPS_POSITIVE == 0 && tmp > 32767.0)
- dest [count] = SHRT_MAX ;
- else if (CPU_CLIPS_NEGATIVE == 0 && tmp < -32768.0)
- dest [count] = SHRT_MIN ;
- else
- dest [count] = lrintf (tmp) ;
- } ;
-} /* f2s_clip_array */
-
-static inline void
-f2i_array (const float *src, int count, int *dest, float scale)
-{ while (--count >= 0)
- { dest [count] = lrintf (scale * src [count]) ;
- } ;
-} /* f2i_array */
-
-static inline void
-f2i_clip_array (const float *src, int count, int *dest, float scale)
-{ while (--count >= 0)
- { float tmp = scale * src [count] ;
-
- if (CPU_CLIPS_POSITIVE == 0 && tmp > (1.0 * INT_MAX))
- dest [count] = INT_MAX ;
- else if (CPU_CLIPS_NEGATIVE == 0 && tmp < (-1.0 * INT_MAX))
- dest [count] = INT_MIN ;
- else
- dest [count] = lrintf (tmp) ;
- } ;
-} /* f2i_clip_array */
-
-static inline void
-f2d_array (const float *src, int count, double *dest)
-{ while (--count >= 0)
- { dest [count] = src [count] ;
- } ;
-} /* f2d_array */
-
-static inline void
-s2f_array (const short *src, float *dest, int count, float scale)
-{ while (--count >= 0)
- { dest [count] = scale * src [count] ;
- } ;
-} /* s2f_array */
-
-static inline void
-i2f_array (const int *src, float *dest, int count, float scale)
-{ while (--count >= 0)
- { dest [count] = scale * src [count] ;
- } ;
-} /* i2f_array */
-
-static inline void
-d2f_array (const double *src, float *dest, int count)
-{ while (--count >= 0)
- { dest [count] = src [count] ;
- } ;
-} /* d2f_array */
-
-/*----------------------------------------------------------------------------------------------
-*/
-
-static sf_count_t
-host_read_f2s (SF_PRIVATE *psf, short *ptr, sf_count_t len)
-{ void (*convert) (const float *, int, short *, float) ;
- int bufferlen, readcount ;
- sf_count_t total = 0 ;
- float scale ;
-
- convert = (psf->add_clipping) ? f2s_clip_array : f2s_array ;
- bufferlen = ARRAY_LEN (psf->u.fbuf) ;
- scale = (psf->float_int_mult == 0) ? 1.0 : 0x7FFF / psf->float_max ;
-
- while (len > 0)
- { if (len < bufferlen)
- bufferlen = (int) len ;
- readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ;
-
-/* Fix me : Need lef2s_array */
- if (psf->data_endswap == SF_TRUE)
- endswap_int_array (psf->u.ibuf, bufferlen) ;
-
- convert (psf->u.fbuf, readcount, ptr + total, scale) ;
- total += readcount ;
- if (readcount < bufferlen)
- break ;
- len -= readcount ;
- } ;
-
- return total ;
-} /* host_read_f2s */
-
-static sf_count_t
-host_read_f2i (SF_PRIVATE *psf, int *ptr, sf_count_t len)
-{ void (*convert) (const float *, int, int *, float) ;
- int bufferlen, readcount ;
- sf_count_t total = 0 ;
- float scale ;
-
- convert = (psf->add_clipping) ? f2i_clip_array : f2i_array ;
- bufferlen = ARRAY_LEN (psf->u.fbuf) ;
- scale = (psf->float_int_mult == 0) ? 1.0 : 0x7FFFFFFF / psf->float_max ;
-
- while (len > 0)
- { if (len < bufferlen)
- bufferlen = (int) len ;
- readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ;
-
- if (psf->data_endswap == SF_TRUE)
- endswap_int_array (psf->u.ibuf, bufferlen) ;
-
- convert (psf->u.fbuf, readcount, ptr + total, scale) ;
- total += readcount ;
- if (readcount < bufferlen)
- break ;
- len -= readcount ;
- } ;
-
- return total ;
-} /* host_read_f2i */
-
-static sf_count_t
-host_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len)
-{ int bufferlen, readcount ;
- sf_count_t total = 0 ;
-
- if (psf->data_endswap != SF_TRUE)
- return psf_fread (ptr, sizeof (float), len, psf) ;
-
- bufferlen = ARRAY_LEN (psf->u.fbuf) ;
-
- while (len > 0)
- { if (len < bufferlen)
- bufferlen = (int) len ;
- readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ;
-
- endswap_int_copy ((int*) (ptr + total), psf->u.ibuf, readcount) ;
-
- total += readcount ;
- if (readcount < bufferlen)
- break ;
- len -= readcount ;
- } ;
-
- return total ;
-} /* host_read_f */
-
-static sf_count_t
-host_read_f2d (SF_PRIVATE *psf, double *ptr, sf_count_t len)
-{ int bufferlen, readcount ;
- sf_count_t total = 0 ;
-
- bufferlen = ARRAY_LEN (psf->u.fbuf) ;
-
- while (len > 0)
- { if (len < bufferlen)
- bufferlen = (int) len ;
- readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ;
-
- if (psf->data_endswap == SF_TRUE)
- endswap_int_array (psf->u.ibuf, bufferlen) ;
-
-/* Fix me : Need lef2d_array */
- f2d_array (psf->u.fbuf, readcount, ptr + total) ;
- total += readcount ;
- if (readcount < bufferlen)
- break ;
- len -= readcount ;
- } ;
-
- return total ;
-} /* host_read_f2d */
-
-static sf_count_t
-host_write_s2f (SF_PRIVATE *psf, const short *ptr, sf_count_t len)
-{ int bufferlen, writecount ;
- sf_count_t total = 0 ;
- float scale ;
-
-/* Erik */
- scale = (psf->scale_int_float == 0) ? 1.0 : 1.0 / 0x8000 ;
- bufferlen = ARRAY_LEN (psf->u.fbuf) ;
-
- while (len > 0)
- { if (len < bufferlen)
- bufferlen = (int) len ;
- s2f_array (ptr + total, psf->u.fbuf, bufferlen, scale) ;
-
- if (psf->peak_info)
- float32_peak_update (psf, psf->u.fbuf, bufferlen, total / psf->sf.channels) ;
-
- if (psf->data_endswap == SF_TRUE)
- endswap_int_array (psf->u.ibuf, bufferlen) ;
-
- writecount = psf_fwrite (psf->u.fbuf, sizeof (float), bufferlen, psf) ;
- total += writecount ;
- if (writecount < bufferlen)
- break ;
- len -= writecount ;
- } ;
-
- return total ;
-} /* host_write_s2f */
-
-static sf_count_t
-host_write_i2f (SF_PRIVATE *psf, const int *ptr, sf_count_t len)
-{ int bufferlen, writecount ;
- sf_count_t total = 0 ;
- float scale ;
-
- scale = (psf->scale_int_float == 0) ? 1.0 : 1.0 / (8.0 * 0x10000000) ;
- bufferlen = ARRAY_LEN (psf->u.fbuf) ;
-
- while (len > 0)
- { if (len < bufferlen)
- bufferlen = (int) len ;
- i2f_array (ptr + total, psf->u.fbuf, bufferlen, scale) ;
-
- if (psf->peak_info)
- float32_peak_update (psf, psf->u.fbuf, bufferlen, total / psf->sf.channels) ;
-
- if (psf->data_endswap == SF_TRUE)
- endswap_int_array (psf->u.ibuf, bufferlen) ;
-
- writecount = psf_fwrite (psf->u.fbuf, sizeof (float) , bufferlen, psf) ;
- total += writecount ;
- if (writecount < bufferlen)
- break ;
- len -= writecount ;
- } ;
-
- return total ;
-} /* host_write_i2f */
-
-static sf_count_t
-host_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len)
-{ int bufferlen, writecount ;
- sf_count_t total = 0 ;
-
- if (psf->peak_info)
- float32_peak_update (psf, ptr, len, 0) ;
-
- if (psf->data_endswap != SF_TRUE)
- return psf_fwrite (ptr, sizeof (float), len, psf) ;
-
- bufferlen = ARRAY_LEN (psf->u.fbuf) ;
-
- while (len > 0)
- { if (len < bufferlen)
- bufferlen = (int) len ;
-
- endswap_int_copy (psf->u.ibuf, (const int*) (ptr + total), bufferlen) ;
-
- writecount = psf_fwrite (psf->u.fbuf, sizeof (float), bufferlen, psf) ;
- total += writecount ;
- if (writecount < bufferlen)
- break ;
- len -= writecount ;
- } ;
-
- return total ;
-} /* host_write_f */
-
-static sf_count_t
-host_write_d2f (SF_PRIVATE *psf, const double *ptr, sf_count_t len)
-{ int bufferlen, writecount ;
- sf_count_t total = 0 ;
-
- bufferlen = ARRAY_LEN (psf->u.fbuf) ;
-
- while (len > 0)
- { if (len < bufferlen)
- bufferlen = (int) len ;
-
- d2f_array (ptr + total, psf->u.fbuf, bufferlen) ;
-
- if (psf->peak_info)
- float32_peak_update (psf, psf->u.fbuf, bufferlen, total / psf->sf.channels) ;
-
- if (psf->data_endswap == SF_TRUE)
- endswap_int_array (psf->u.ibuf, bufferlen) ;
-
- writecount = psf_fwrite (psf->u.fbuf, sizeof (float), bufferlen, psf) ;
- total += writecount ;
- if (writecount < bufferlen)
- break ;
- len -= writecount ;
- } ;
-
- return total ;
-} /* host_write_d2f */
-
-/*=======================================================================================
-*/
-
-static sf_count_t
-replace_read_f2s (SF_PRIVATE *psf, short *ptr, sf_count_t len)
-{ int bufferlen, readcount ;
- sf_count_t total = 0 ;
- float scale ;
-
- bufferlen = ARRAY_LEN (psf->u.fbuf) ;
- scale = (psf->float_int_mult == 0) ? 1.0 : 0x7FFF / psf->float_max ;
-
- while (len > 0)
- { if (len < bufferlen)
- bufferlen = (int) len ;
- readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ;
-
- if (psf->data_endswap == SF_TRUE)
- endswap_int_array (psf->u.ibuf, bufferlen) ;
-
- bf2f_array (psf->u.fbuf, bufferlen) ;
-
- f2s_array (psf->u.fbuf, readcount, ptr + total, scale) ;
- total += readcount ;
- if (readcount < bufferlen)
- break ;
- len -= readcount ;
- } ;
-
- return total ;
-} /* replace_read_f2s */
-
-static sf_count_t
-replace_read_f2i (SF_PRIVATE *psf, int *ptr, sf_count_t len)
-{ int bufferlen, readcount ;
- sf_count_t total = 0 ;
- float scale ;
-
- bufferlen = ARRAY_LEN (psf->u.fbuf) ;
- scale = (psf->float_int_mult == 0) ? 1.0 : 0x7FFF / psf->float_max ;
-
- while (len > 0)
- { if (len < bufferlen)
- bufferlen = (int) len ;
- readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ;
-
- if (psf->data_endswap == SF_TRUE)
- endswap_int_array (psf->u.ibuf, bufferlen) ;
-
- bf2f_array (psf->u.fbuf, bufferlen) ;
-
- f2i_array (psf->u.fbuf, readcount, ptr + total, scale) ;
- total += readcount ;
- if (readcount < bufferlen)
- break ;
- len -= readcount ;
- } ;
-
- return total ;
-} /* replace_read_f2i */
-
-static sf_count_t
-replace_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len)
-{ int bufferlen, readcount ;
- sf_count_t total = 0 ;
-
- /* FIX THIS */
-
- bufferlen = ARRAY_LEN (psf->u.fbuf) ;
-
- while (len > 0)
- { if (len < bufferlen)
- bufferlen = (int) len ;
- readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ;
-
- if (psf->data_endswap == SF_TRUE)
- endswap_int_array (psf->u.ibuf, bufferlen) ;
-
- bf2f_array (psf->u.fbuf, bufferlen) ;
-
- memcpy (ptr + total, psf->u.fbuf, bufferlen * sizeof (float)) ;
-
- total += readcount ;
- if (readcount < bufferlen)
- break ;
- len -= readcount ;
- } ;
-
- return total ;
-} /* replace_read_f */
-
-static sf_count_t
-replace_read_f2d (SF_PRIVATE *psf, double *ptr, sf_count_t len)
-{ int bufferlen, readcount ;
- sf_count_t total = 0 ;
-
- bufferlen = ARRAY_LEN (psf->u.fbuf) ;
-
- while (len > 0)
- { if (len < bufferlen)
- bufferlen = (int) len ;
- readcount = psf_fread (psf->u.fbuf, sizeof (float), bufferlen, psf) ;
-
- if (psf->data_endswap == SF_TRUE)
- endswap_int_array (psf->u.ibuf, bufferlen) ;
-
- bf2f_array (psf->u.fbuf, bufferlen) ;
-
- f2d_array (psf->u.fbuf, readcount, ptr + total) ;
- total += readcount ;
- if (readcount < bufferlen)
- break ;
- len -= readcount ;
- } ;
-
- return total ;
-} /* replace_read_f2d */
-
-static sf_count_t
-replace_write_s2f (SF_PRIVATE *psf, const short *ptr, sf_count_t len)
-{ int bufferlen, writecount ;
- sf_count_t total = 0 ;
- float scale ;
-
- scale = (psf->scale_int_float == 0) ? 1.0 : 1.0 / 0x8000 ;
- bufferlen = ARRAY_LEN (psf->u.fbuf) ;
-
- while (len > 0)
- { if (len < bufferlen)
- bufferlen = (int) len ;
- s2f_array (ptr + total, psf->u.fbuf, bufferlen, scale) ;
-
- if (psf->peak_info)
- float32_peak_update (psf, psf->u.fbuf, bufferlen, total / psf->sf.channels) ;
-
- f2bf_array (psf->u.fbuf, bufferlen) ;
-
- if (psf->data_endswap == SF_TRUE)
- endswap_int_array (psf->u.ibuf, bufferlen) ;
-
- writecount = psf_fwrite (psf->u.fbuf, sizeof (float), bufferlen, psf) ;
- total += writecount ;
- if (writecount < bufferlen)
- break ;
- len -= writecount ;
- } ;
-
- return total ;
-} /* replace_write_s2f */
-
-static sf_count_t
-replace_write_i2f (SF_PRIVATE *psf, const int *ptr, sf_count_t len)
-{ int bufferlen, writecount ;
- sf_count_t total = 0 ;
- float scale ;
-
- scale = (psf->scale_int_float == 0) ? 1.0 : 1.0 / (8.0 * 0x10000000) ;
- bufferlen = ARRAY_LEN (psf->u.fbuf) ;
-
- while (len > 0)
- { if (len < bufferlen)
- bufferlen = (int) len ;
- i2f_array (ptr + total, psf->u.fbuf, bufferlen, scale) ;
-
- if (psf->peak_info)
- float32_peak_update (psf, psf->u.fbuf, bufferlen, total / psf->sf.channels) ;
-
- f2bf_array (psf->u.fbuf, bufferlen) ;
-
- if (psf->data_endswap == SF_TRUE)
- endswap_int_array (psf->u.ibuf, bufferlen) ;
-
- writecount = psf_fwrite (psf->u.fbuf, sizeof (float), bufferlen, psf) ;
- total += writecount ;
- if (writecount < bufferlen)
- break ;
- len -= writecount ;
- } ;
-
- return total ;
-} /* replace_write_i2f */
-
-static sf_count_t
-replace_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len)
-{ int bufferlen, writecount ;
- sf_count_t total = 0 ;
-
- /* FIX THIS */
- if (psf->peak_info)
- float32_peak_update (psf, ptr, len, 0) ;
-
- bufferlen = ARRAY_LEN (psf->u.fbuf) ;
-
- while (len > 0)
- { if (len < bufferlen)
- bufferlen = (int) len ;
-
- memcpy (psf->u.fbuf, ptr + total, bufferlen * sizeof (float)) ;
-
- f2bf_array (psf->u.fbuf, bufferlen) ;
-
- if (psf->data_endswap == SF_TRUE)
- endswap_int_array (psf->u.ibuf, bufferlen) ;
-
- writecount = psf_fwrite (psf->u.fbuf, sizeof (float) , bufferlen, psf) ;
- total += writecount ;
- if (writecount < bufferlen)
- break ;
- len -= writecount ;
- } ;
-
- return total ;
-} /* replace_write_f */
-
-static sf_count_t
-replace_write_d2f (SF_PRIVATE *psf, const double *ptr, sf_count_t len)
-{ int bufferlen, writecount ;
- sf_count_t total = 0 ;
-
- bufferlen = ARRAY_LEN (psf->u.fbuf) ;
-
- while (len > 0)
- { if (len < bufferlen)
- bufferlen = (int) len ;
- d2f_array (ptr + total, psf->u.fbuf, bufferlen) ;
-
- if (psf->peak_info)
- float32_peak_update (psf, psf->u.fbuf, bufferlen, total / psf->sf.channels) ;
-
- f2bf_array (psf->u.fbuf, bufferlen) ;
-
- if (psf->data_endswap == SF_TRUE)
- endswap_int_array (psf->u.ibuf, bufferlen) ;
-
- writecount = psf_fwrite (psf->u.fbuf, sizeof (float), bufferlen, psf) ;
- total += writecount ;
- if (writecount < bufferlen)
- break ;
- len -= writecount ;
- } ;
-
- return total ;
-} /* replace_write_d2f */
-
-/*----------------------------------------------------------------------------------------------
-*/
-
-static void
-bf2f_array (float *buffer, int count)
-{ while (--count >= 0)
- { buffer [count] = FLOAT32_READ ((unsigned char *) (buffer + count)) ;
- } ;
-} /* bf2f_array */
-
-static void
-f2bf_array (float *buffer, int count)
-{ while (--count >= 0)
- { FLOAT32_WRITE (buffer [count], (unsigned char*) (buffer + count)) ;
- } ;
-} /* f2bf_array */
-
projects / Faustine.git / blobdiff