diff options
Diffstat (limited to 'libs/libsndfile/src/paf.c')
| -rw-r--r-- | libs/libsndfile/src/paf.c | 843 |
1 files changed, 0 insertions, 843 deletions
diff --git a/libs/libsndfile/src/paf.c b/libs/libsndfile/src/paf.c deleted file mode 100644 index 6114dac838..0000000000 --- a/libs/libsndfile/src/paf.c +++ /dev/null @@ -1,843 +0,0 @@ -/* -** Copyright (C) 1999-2005 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 <fcntl.h> -#include <string.h> -#include <ctype.h> - -#include "sndfile.h" -#include "sfendian.h" -#include "float_cast.h" -#include "common.h" - -/*------------------------------------------------------------------------------ -** Macros to handle big/little endian issues. -*/ - -#define FAP_MARKER (MAKE_MARKER ('f', 'a', 'p', ' ')) -#define PAF_MARKER (MAKE_MARKER (' ', 'p', 'a', 'f')) - -/*------------------------------------------------------------------------------ -** Other defines. -*/ - -#define PAF_HEADER_LENGTH 2048 - -#define PAF24_SAMPLES_PER_BLOCK 10 -#define PAF24_BLOCK_SIZE 32 - -/*------------------------------------------------------------------------------ -** Typedefs. -*/ - -typedef struct -{ int version ; - int endianness ; - int samplerate ; - int format ; - int channels ; - int source ; -} PAF_FMT ; - -typedef struct -{ int max_blocks, channels, samplesperblock, blocksize ; - int read_block, write_block, read_count, write_count ; - sf_count_t sample_count ; - int *samples ; - unsigned char *block ; -#if HAVE_FLEXIBLE_ARRAY - int data [] ; /* ISO C99 struct flexible array. */ -#else - int data [1] ; /* This is a hack and may not work. */ -#endif -} PAF24_PRIVATE ; - -/*------------------------------------------------------------------------------ -** Private static functions. -*/ - -static int paf24_init (SF_PRIVATE *psf) ; - -static int paf_read_header (SF_PRIVATE *psf) ; -static int paf_write_header (SF_PRIVATE *psf, int calc_length) ; - -static sf_count_t paf24_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; -static sf_count_t paf24_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; -static sf_count_t paf24_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; -static sf_count_t paf24_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; - -static sf_count_t paf24_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; -static sf_count_t paf24_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; -static sf_count_t paf24_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; -static sf_count_t paf24_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; - -static sf_count_t paf24_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ; - -enum -{ PAF_PCM_16 = 0, - PAF_PCM_24 = 1, - PAF_PCM_S8 = 2 -} ; - -/*------------------------------------------------------------------------------ -** Public function. -*/ - -int -paf_open (SF_PRIVATE *psf) -{ int subformat, error, endian ; - - psf->dataoffset = PAF_HEADER_LENGTH ; - - if (psf->mode == SFM_READ || (psf->mode == SFM_RDWR && psf->filelength > 0)) - { if ((error = paf_read_header (psf))) - return error ; - } ; - - subformat = psf->sf.format & SF_FORMAT_SUBMASK ; - - if (psf->mode == SFM_WRITE || psf->mode == SFM_RDWR) - { if ((psf->sf.format & SF_FORMAT_TYPEMASK) != SF_FORMAT_PAF) - return SFE_BAD_OPEN_FORMAT ; - - endian = psf->sf.format & SF_FORMAT_ENDMASK ; - - /* PAF is by default big endian. */ - psf->endian = SF_ENDIAN_BIG ; - - if (endian == SF_ENDIAN_LITTLE || (CPU_IS_LITTLE_ENDIAN && (endian == SF_ENDIAN_CPU))) - psf->endian = SF_ENDIAN_LITTLE ; - - if ((error = paf_write_header (psf, SF_FALSE))) - return error ; - - psf->write_header = paf_write_header ; - } ; - - switch (subformat) - { case SF_FORMAT_PCM_S8 : - psf->bytewidth = 1 ; - error = pcm_init (psf) ; - break ; - - case SF_FORMAT_PCM_16 : - psf->bytewidth = 2 ; - error = pcm_init (psf) ; - break ; - - case SF_FORMAT_PCM_24 : - /* No bytewidth because of whacky 24 bit encoding. */ - error = paf24_init (psf) ; - break ; - - default : return SFE_PAF_UNKNOWN_FORMAT ; - } ; - - return error ; -} /* paf_open */ - -/*------------------------------------------------------------------------------ -*/ - -static int -paf_read_header (SF_PRIVATE *psf) -{ PAF_FMT paf_fmt ; - int marker ; - - memset (&paf_fmt, 0, sizeof (paf_fmt)) ; - psf_binheader_readf (psf, "pm", 0, &marker) ; - - psf_log_printf (psf, "Signature : '%M'\n", marker) ; - - if (marker == PAF_MARKER) - { psf_binheader_readf (psf, "E444444", &(paf_fmt.version), &(paf_fmt.endianness), - &(paf_fmt.samplerate), &(paf_fmt.format), &(paf_fmt.channels), &(paf_fmt.source)) ; - } - else if (marker == FAP_MARKER) - { psf_binheader_readf (psf, "e444444", &(paf_fmt.version), &(paf_fmt.endianness), - &(paf_fmt.samplerate), &(paf_fmt.format), &(paf_fmt.channels), &(paf_fmt.source)) ; - } - else - return SFE_PAF_NO_MARKER ; - - psf_log_printf (psf, "Version : %d\n", paf_fmt.version) ; - - if (paf_fmt.version != 0) - { psf_log_printf (psf, "*** Bad version number. should be zero.\n") ; - return SFE_PAF_VERSION ; - } ; - - psf_log_printf (psf, "Sample Rate : %d\n", paf_fmt.samplerate) ; - psf_log_printf (psf, "Channels : %d\n", paf_fmt.channels) ; - - psf_log_printf (psf, "Endianness : %d => ", paf_fmt.endianness) ; - if (paf_fmt.endianness) - { psf_log_printf (psf, "Little\n", paf_fmt.endianness) ; - psf->endian = SF_ENDIAN_LITTLE ; - } - else - { psf_log_printf (psf, "Big\n", paf_fmt.endianness) ; - psf->endian = SF_ENDIAN_BIG ; - } ; - - if (psf->filelength < PAF_HEADER_LENGTH) - return SFE_PAF_SHORT_HEADER ; - - psf->datalength = psf->filelength - psf->dataoffset ; - - psf_binheader_readf (psf, "p", (int) psf->dataoffset) ; - - psf->sf.samplerate = paf_fmt.samplerate ; - psf->sf.channels = paf_fmt.channels ; - - /* Only fill in type major. */ - psf->sf.format = SF_FORMAT_PAF ; - - psf_log_printf (psf, "Format : %d => ", paf_fmt.format) ; - - /* PAF is by default big endian. */ - psf->sf.format |= paf_fmt.endianness ? SF_ENDIAN_LITTLE : SF_ENDIAN_BIG ; - - switch (paf_fmt.format) - { case PAF_PCM_S8 : - psf_log_printf (psf, "8 bit linear PCM\n") ; - psf->bytewidth = 1 ; - - psf->sf.format |= SF_FORMAT_PCM_S8 ; - - psf->blockwidth = psf->bytewidth * psf->sf.channels ; - psf->sf.frames = psf->datalength / psf->blockwidth ; - break ; - - case PAF_PCM_16 : - psf_log_printf (psf, "16 bit linear PCM\n") ; - psf->bytewidth = 2 ; - - psf->sf.format |= SF_FORMAT_PCM_16 ; - - psf->blockwidth = psf->bytewidth * psf->sf.channels ; - psf->sf.frames = psf->datalength / psf->blockwidth ; - break ; - - case PAF_PCM_24 : - psf_log_printf (psf, "24 bit linear PCM\n") ; - psf->bytewidth = 3 ; - - psf->sf.format |= SF_FORMAT_PCM_24 ; - - psf->blockwidth = 0 ; - psf->sf.frames = PAF24_SAMPLES_PER_BLOCK * psf->datalength / - (PAF24_BLOCK_SIZE * psf->sf.channels) ; - break ; - - default : psf_log_printf (psf, "Unknown\n") ; - return SFE_PAF_UNKNOWN_FORMAT ; - break ; - } ; - - psf_log_printf (psf, "Source : %d => ", paf_fmt.source) ; - - switch (paf_fmt.source) - { case 1 : psf_log_printf (psf, "Analog Recording\n") ; - break ; - case 2 : psf_log_printf (psf, "Digital Transfer\n") ; - break ; - case 3 : psf_log_printf (psf, "Multi-track Mixdown\n") ; - break ; - case 5 : psf_log_printf (psf, "Audio Resulting From DSP Processing\n") ; - break ; - default : psf_log_printf (psf, "Unknown\n") ; - break ; - } ; - - return 0 ; -} /* paf_read_header */ - -static int -paf_write_header (SF_PRIVATE *psf, int calc_length) -{ int paf_format ; - - /* PAF header already written so no need to re-write. */ - if (psf_ftell (psf) >= PAF_HEADER_LENGTH) - return 0 ; - - psf->dataoffset = PAF_HEADER_LENGTH ; - - psf->dataoffset = PAF_HEADER_LENGTH ; - - /* Prevent compiler warning. */ - calc_length = calc_length ; - - switch (psf->sf.format & SF_FORMAT_SUBMASK) - { case SF_FORMAT_PCM_S8 : - paf_format = PAF_PCM_S8 ; - break ; - - case SF_FORMAT_PCM_16 : - paf_format = PAF_PCM_16 ; - break ; - - case SF_FORMAT_PCM_24 : - paf_format = PAF_PCM_24 ; - break ; - - default : return SFE_PAF_UNKNOWN_FORMAT ; - } ; - - /* Reset the current header length to zero. */ - psf->header [0] = 0 ; - psf->headindex = 0 ; - - if (psf->endian == SF_ENDIAN_BIG) - { /* Marker, version, endianness, samplerate */ - psf_binheader_writef (psf, "Em444", PAF_MARKER, 0, 0, psf->sf.samplerate) ; - /* format, channels, source */ - psf_binheader_writef (psf, "E444", paf_format, psf->sf.channels, 0) ; - } - else if (psf->endian == SF_ENDIAN_LITTLE) - { /* Marker, version, endianness, samplerate */ - psf_binheader_writef (psf, "em444", FAP_MARKER, 0, 1, psf->sf.samplerate) ; - /* format, channels, source */ - psf_binheader_writef (psf, "e444", paf_format, psf->sf.channels, 0) ; - } ; - - /* Zero fill to dataoffset. */ - psf_binheader_writef (psf, "z", (size_t) (psf->dataoffset - psf->headindex)) ; - - psf_fwrite (psf->header, psf->headindex, 1, psf) ; - - return psf->error ; -} /* paf_write_header */ - -/*=============================================================================== -** 24 bit PAF files have a really weird encoding. -** For a mono file, 10 samples (each being 3 bytes) are packed into a 32 byte -** block. The 8 ints in this 32 byte block are then endian swapped (as ints) -** if necessary before being written to disk. -** For a stereo file, blocks of 10 samples from the same channel are encoded -** into 32 bytes as for the mono case. The 32 byte blocks are then interleaved -** on disk. -** Reading has to reverse the above process :-). -** Weird!!! -** -** The code below attempts to gain efficiency while maintaining readability. -*/ - -static int paf24_read_block (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24) ; -static int paf24_write_block (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24) ; -static int paf24_close (SF_PRIVATE *psf) ; - - -static int -paf24_init (SF_PRIVATE *psf) -{ PAF24_PRIVATE *ppaf24 ; - int paf24size ; - - paf24size = sizeof (PAF24_PRIVATE) + psf->sf.channels * - (PAF24_BLOCK_SIZE + PAF24_SAMPLES_PER_BLOCK * sizeof (int)) ; - - /* - ** Not exatly sure why this needs to be here but the tests - ** fail without it. - */ - psf->last_op = 0 ; - - if (! (psf->fdata = malloc (paf24size))) - return SFE_MALLOC_FAILED ; - - ppaf24 = (PAF24_PRIVATE*) psf->fdata ; - memset (ppaf24, 0, paf24size) ; - - ppaf24->channels = psf->sf.channels ; - ppaf24->samples = ppaf24->data ; - ppaf24->block = (unsigned char*) (ppaf24->data + PAF24_SAMPLES_PER_BLOCK * ppaf24->channels) ; - - ppaf24->blocksize = PAF24_BLOCK_SIZE * ppaf24->channels ; - ppaf24->samplesperblock = PAF24_SAMPLES_PER_BLOCK ; - - if (psf->mode == SFM_READ || psf->mode == SFM_RDWR) - { paf24_read_block (psf, ppaf24) ; /* Read first block. */ - - psf->read_short = paf24_read_s ; - psf->read_int = paf24_read_i ; - psf->read_float = paf24_read_f ; - psf->read_double = paf24_read_d ; - } ; - - if (psf->mode == SFM_WRITE || psf->mode == SFM_RDWR) - { psf->write_short = paf24_write_s ; - psf->write_int = paf24_write_i ; - psf->write_float = paf24_write_f ; - psf->write_double = paf24_write_d ; - } ; - - psf->seek = paf24_seek ; - psf->container_close = paf24_close ; - - psf->filelength = psf_get_filelen (psf) ; - psf->datalength = psf->filelength - psf->dataoffset ; - - if (psf->datalength % PAF24_BLOCK_SIZE) - { if (psf->mode == SFM_READ) - psf_log_printf (psf, "*** Warning : file seems to be truncated.\n") ; - ppaf24->max_blocks = psf->datalength / ppaf24->blocksize + 1 ; - } - else - ppaf24->max_blocks = psf->datalength / ppaf24->blocksize ; - - ppaf24->read_block = 0 ; - if (psf->mode == SFM_RDWR) - ppaf24->write_block = ppaf24->max_blocks ; - else - ppaf24->write_block = 0 ; - - psf->sf.frames = ppaf24->samplesperblock * ppaf24->max_blocks ; - ppaf24->sample_count = psf->sf.frames ; - - return 0 ; -} /* paf24_init */ - -static sf_count_t -paf24_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) -{ PAF24_PRIVATE *ppaf24 ; - int newblock, newsample ; - - if (psf->fdata == NULL) - { psf->error = SFE_INTERNAL ; - return PSF_SEEK_ERROR ; - } ; - - ppaf24 = (PAF24_PRIVATE*) psf->fdata ; - - if (mode == SFM_READ && ppaf24->write_count > 0) - paf24_write_block (psf, ppaf24) ; - - newblock = offset / ppaf24->samplesperblock ; - newsample = offset % ppaf24->samplesperblock ; - - switch (mode) - { case SFM_READ : - if (psf->last_op == SFM_WRITE && ppaf24->write_count) - paf24_write_block (psf, ppaf24) ; - - psf_fseek (psf, psf->dataoffset + newblock * ppaf24->blocksize, SEEK_SET) ; - ppaf24->read_block = newblock ; - paf24_read_block (psf, ppaf24) ; - ppaf24->read_count = newsample ; - break ; - - case SFM_WRITE : - if (offset > ppaf24->sample_count) - { psf->error = SFE_BAD_SEEK ; - return PSF_SEEK_ERROR ; - } ; - - if (psf->last_op == SFM_WRITE && ppaf24->write_count) - paf24_write_block (psf, ppaf24) ; - - psf_fseek (psf, psf->dataoffset + newblock * ppaf24->blocksize, SEEK_SET) ; - ppaf24->write_block = newblock ; - paf24_read_block (psf, ppaf24) ; - ppaf24->write_count = newsample ; - break ; - - default : - psf->error = SFE_BAD_SEEK ; - return PSF_SEEK_ERROR ; - } ; - - return newblock * ppaf24->samplesperblock + newsample ; -} /* paf24_seek */ - -static int -paf24_close (SF_PRIVATE *psf) -{ PAF24_PRIVATE *ppaf24 ; - - if (psf->fdata == NULL) - return 0 ; - - ppaf24 = (PAF24_PRIVATE*) psf->fdata ; - - if (psf->mode == SFM_WRITE || psf->mode == SFM_RDWR) - { if (ppaf24->write_count > 0) - paf24_write_block (psf, ppaf24) ; - } ; - - return 0 ; -} /* paf24_close */ - -/*--------------------------------------------------------------------------- -*/ -static int -paf24_read_block (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24) -{ int k, channel ; - unsigned char *cptr ; - - ppaf24->read_block ++ ; - ppaf24->read_count = 0 ; - - if (ppaf24->read_block * ppaf24->samplesperblock > ppaf24->sample_count) - { memset (ppaf24->samples, 0, ppaf24->samplesperblock * ppaf24->channels) ; - return 1 ; - } ; - - /* Read the block. */ - if ((k = psf_fread (ppaf24->block, 1, ppaf24->blocksize, psf)) != ppaf24->blocksize) - psf_log_printf (psf, "*** Warning : short read (%d != %d).\n", k, ppaf24->blocksize) ; - - - if (CPU_IS_LITTLE_ENDIAN) - { /* Do endian swapping if necessary. */ - if (psf->endian == SF_ENDIAN_BIG) - endswap_int_array (ppaf24->data, 8 * ppaf24->channels) ; - - /* Unpack block. */ - for (k = 0 ; k < PAF24_SAMPLES_PER_BLOCK * ppaf24->channels ; k++) - { channel = k % ppaf24->channels ; - cptr = ppaf24->block + PAF24_BLOCK_SIZE * channel + 3 * (k / ppaf24->channels) ; - ppaf24->samples [k] = (cptr [0] << 8) | (cptr [1] << 16) | (cptr [2] << 24) ; - } ; - } - else - { /* Do endian swapping if necessary. */ - if (psf->endian == SF_ENDIAN_BIG) - endswap_int_array (ppaf24->data, 8 * ppaf24->channels) ; - - /* Unpack block. */ - for (k = 0 ; k < PAF24_SAMPLES_PER_BLOCK * ppaf24->channels ; k++) - { channel = k % ppaf24->channels ; - cptr = ppaf24->block + PAF24_BLOCK_SIZE * channel + 3 * (k / ppaf24->channels) ; - ppaf24->samples [k] = (cptr [0] << 8) | (cptr [1] << 16) | (cptr [2] << 24) ; - } ; - } ; - - return 1 ; -} /* paf24_read_block */ - -static int -paf24_read (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24, int *ptr, int len) -{ int count, total = 0 ; - - while (total < len) - { if (ppaf24->read_block * ppaf24->samplesperblock >= ppaf24->sample_count) - { memset (&(ptr [total]), 0, (len - total) * sizeof (int)) ; - return total ; - } ; - - if (ppaf24->read_count >= ppaf24->samplesperblock) - paf24_read_block (psf, ppaf24) ; - - count = (ppaf24->samplesperblock - ppaf24->read_count) * ppaf24->channels ; - count = (len - total > count) ? count : len - total ; - - memcpy (&(ptr [total]), &(ppaf24->samples [ppaf24->read_count * ppaf24->channels]), count * sizeof (int)) ; - total += count ; - ppaf24->read_count += count / ppaf24->channels ; - } ; - - return total ; -} /* paf24_read */ - -static sf_count_t -paf24_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) -{ PAF24_PRIVATE *ppaf24 ; - int *iptr ; - int k, bufferlen, readcount, count ; - sf_count_t total = 0 ; - - if (psf->fdata == NULL) - return 0 ; - ppaf24 = (PAF24_PRIVATE*) psf->fdata ; - - iptr = psf->u.ibuf ; - bufferlen = ARRAY_LEN (psf->u.ibuf) ; - while (len > 0) - { readcount = (len >= bufferlen) ? bufferlen : len ; - count = paf24_read (psf, ppaf24, iptr, readcount) ; - for (k = 0 ; k < readcount ; k++) - ptr [total + k] = iptr [k] >> 16 ; - total += count ; - len -= readcount ; - } ; - return total ; -} /* paf24_read_s */ - -static sf_count_t -paf24_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) -{ PAF24_PRIVATE *ppaf24 ; - int total ; - - if (psf->fdata == NULL) - return 0 ; - ppaf24 = (PAF24_PRIVATE*) psf->fdata ; - - total = paf24_read (psf, ppaf24, ptr, len) ; - - return total ; -} /* paf24_read_i */ - -static sf_count_t -paf24_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) -{ PAF24_PRIVATE *ppaf24 ; - int *iptr ; - int k, bufferlen, readcount, count ; - sf_count_t total = 0 ; - float normfact ; - - if (psf->fdata == NULL) - return 0 ; - ppaf24 = (PAF24_PRIVATE*) psf->fdata ; - - normfact = (psf->norm_float == SF_TRUE) ? (1.0 / 0x80000000) : (1.0 / 0x100) ; - - iptr = psf->u.ibuf ; - bufferlen = ARRAY_LEN (psf->u.ibuf) ; - while (len > 0) - { readcount = (len >= bufferlen) ? bufferlen : len ; - count = paf24_read (psf, ppaf24, iptr, readcount) ; - for (k = 0 ; k < readcount ; k++) - ptr [total + k] = normfact * iptr [k] ; - total += count ; - len -= readcount ; - } ; - return total ; -} /* paf24_read_f */ - -static sf_count_t -paf24_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) -{ PAF24_PRIVATE *ppaf24 ; - int *iptr ; - int k, bufferlen, readcount, count ; - sf_count_t total = 0 ; - double normfact ; - - if (psf->fdata == NULL) - return 0 ; - ppaf24 = (PAF24_PRIVATE*) psf->fdata ; - - normfact = (psf->norm_double == SF_TRUE) ? (1.0 / 0x80000000) : (1.0 / 0x100) ; - - iptr = psf->u.ibuf ; - bufferlen = ARRAY_LEN (psf->u.ibuf) ; - while (len > 0) - { readcount = (len >= bufferlen) ? bufferlen : len ; - count = paf24_read (psf, ppaf24, iptr, readcount) ; - for (k = 0 ; k < readcount ; k++) - ptr [total + k] = normfact * iptr [k] ; - total += count ; - len -= readcount ; - } ; - return total ; -} /* paf24_read_d */ - -/*--------------------------------------------------------------------------- -*/ - -static int -paf24_write_block (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24) -{ int k, nextsample, channel ; - unsigned char *cptr ; - - /* First pack block. */ - - if (CPU_IS_LITTLE_ENDIAN) - { for (k = 0 ; k < PAF24_SAMPLES_PER_BLOCK * ppaf24->channels ; k++) - { channel = k % ppaf24->channels ; - cptr = ppaf24->block + PAF24_BLOCK_SIZE * channel + 3 * (k / ppaf24->channels) ; - nextsample = ppaf24->samples [k] >> 8 ; - cptr [0] = nextsample ; - cptr [1] = nextsample >> 8 ; - cptr [2] = nextsample >> 16 ; - } ; - - /* Do endian swapping if necessary. */ - if (psf->endian == SF_ENDIAN_BIG) - endswap_int_array (ppaf24->data, 8 * ppaf24->channels) ; - } - else if (CPU_IS_BIG_ENDIAN) - { /* This is correct. */ - for (k = 0 ; k < PAF24_SAMPLES_PER_BLOCK * ppaf24->channels ; k++) - { channel = k % ppaf24->channels ; - cptr = ppaf24->block + PAF24_BLOCK_SIZE * channel + 3 * (k / ppaf24->channels) ; - nextsample = ppaf24->samples [k] >> 8 ; - cptr [0] = nextsample ; - cptr [1] = nextsample >> 8 ; - cptr [2] = nextsample >> 16 ; - } ; - if (psf->endian == SF_ENDIAN_BIG) - endswap_int_array (ppaf24->data, 8 * ppaf24->channels) ; - } ; - - /* Write block to disk. */ - if ((k = psf_fwrite (ppaf24->block, 1, ppaf24->blocksize, psf)) != ppaf24->blocksize) - psf_log_printf (psf, "*** Warning : short write (%d != %d).\n", k, ppaf24->blocksize) ; - - if (ppaf24->sample_count < ppaf24->write_block * ppaf24->samplesperblock + ppaf24->write_count) - ppaf24->sample_count = ppaf24->write_block * ppaf24->samplesperblock + ppaf24->write_count ; - - if (ppaf24->write_count == ppaf24->samplesperblock) - { ppaf24->write_block ++ ; - ppaf24->write_count = 0 ; - } ; - - return 1 ; -} /* paf24_write_block */ - -static int -paf24_write (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24, const int *ptr, int len) -{ int count, total = 0 ; - - while (total < len) - { count = (ppaf24->samplesperblock - ppaf24->write_count) * ppaf24->channels ; - - if (count > len - total) - count = len - total ; - - memcpy (&(ppaf24->samples [ppaf24->write_count * ppaf24->channels]), &(ptr [total]), count * sizeof (int)) ; - total += count ; - ppaf24->write_count += count / ppaf24->channels ; - - if (ppaf24->write_count >= ppaf24->samplesperblock) - paf24_write_block (psf, ppaf24) ; - } ; - - return total ; -} /* paf24_write */ - -static sf_count_t -paf24_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) -{ PAF24_PRIVATE *ppaf24 ; - int *iptr ; - int k, bufferlen, writecount = 0, count ; - sf_count_t total = 0 ; - - if (psf->fdata == NULL) - return 0 ; - ppaf24 = (PAF24_PRIVATE*) psf->fdata ; - - iptr = psf->u.ibuf ; - bufferlen = ARRAY_LEN (psf->u.ibuf) ; - while (len > 0) - { writecount = (len >= bufferlen) ? bufferlen : len ; - for (k = 0 ; k < writecount ; k++) - iptr [k] = ptr [total + k] << 16 ; - count = paf24_write (psf, ppaf24, iptr, writecount) ; - total += count ; - len -= writecount ; - if (count != writecount) - break ; - } ; - return total ; -} /* paf24_write_s */ - -static sf_count_t -paf24_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) -{ PAF24_PRIVATE *ppaf24 ; - int writecount, count ; - sf_count_t total = 0 ; - - if (psf->fdata == NULL) - return 0 ; - ppaf24 = (PAF24_PRIVATE*) psf->fdata ; - - while (len > 0) - { writecount = (len > 0x10000000) ? 0x10000000 : (int) len ; - - count = paf24_write (psf, ppaf24, ptr, writecount) ; - - total += count ; - len -= count ; - if (count != writecount) - break ; - } ; - - return total ; -} /* paf24_write_i */ - -static sf_count_t -paf24_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) -{ PAF24_PRIVATE *ppaf24 ; - int *iptr ; - int k, bufferlen, writecount = 0, count ; - sf_count_t total = 0 ; - float normfact ; - - if (psf->fdata == NULL) - return 0 ; - ppaf24 = (PAF24_PRIVATE*) psf->fdata ; - - normfact = (psf->norm_float == SF_TRUE) ? (1.0 * 0x7FFFFFFF) : (1.0 / 0x100) ; - - iptr = psf->u.ibuf ; - bufferlen = ARRAY_LEN (psf->u.ibuf) ; - while (len > 0) - { writecount = (len >= bufferlen) ? bufferlen : len ; - for (k = 0 ; k < writecount ; k++) - iptr [k] = lrintf (normfact * ptr [total + k]) ; - count = paf24_write (psf, ppaf24, iptr, writecount) ; - total += count ; - len -= writecount ; - if (count != writecount) - break ; - } ; - - return total ; -} /* paf24_write_f */ - -static sf_count_t -paf24_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) -{ PAF24_PRIVATE *ppaf24 ; - int *iptr ; - int k, bufferlen, writecount = 0, count ; - sf_count_t total = 0 ; - double normfact ; - - if (psf->fdata == NULL) - return 0 ; - ppaf24 = (PAF24_PRIVATE*) psf->fdata ; - - normfact = (psf->norm_double == SF_TRUE) ? (1.0 * 0x7FFFFFFF) : (1.0 / 0x100) ; - - iptr = psf->u.ibuf ; - bufferlen = ARRAY_LEN (psf->u.ibuf) ; - while (len > 0) - { writecount = (len >= bufferlen) ? bufferlen : len ; - for (k = 0 ; k < writecount ; k++) - iptr [k] = lrint (normfact * ptr [total+k]) ; - count = paf24_write (psf, ppaf24, iptr, writecount) ; - total += count ; - len -= writecount ; - if (count != writecount) - break ; - } ; - - return total ; -} /* paf24_write_d */ - - -/* -** Do not edit or modify anything in this comment block. -** The arch-tag line is a file identity tag for the GNU Arch -** revision control system. -** -** arch-tag: 477a5308-451e-4bbd-bab4-fab6caa4e884 -*/ |