X-Git-Url: https://scm.cri.ensmp.fr/git/Faustine.git/blobdiff_plain/1059e1cc0c2ecfa237406949aa26155b6a5b9154..66f23d4fabf89ad09adbd4dfc15ac6b5b2b7da83:/interpretor/lib/src/libsndfile-1.0.25/src/xi.c diff --git a/interpretor/lib/src/libsndfile-1.0.25/src/xi.c b/interpretor/lib/src/libsndfile-1.0.25/src/xi.c deleted file mode 100644 index ee60a4b..0000000 --- a/interpretor/lib/src/libsndfile-1.0.25/src/xi.c +++ /dev/null @@ -1,1197 +0,0 @@ -/* -** Copyright (C) 2003-2011 Erik de Castro Lopo -** -** 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 -#include -#include -#include -#include -#include - -#include "sndfile.h" -#include "sfendian.h" -#include "common.h" - -#define MAX_XI_SAMPLES 16 - -/*------------------------------------------------------------------------------ -** Private static functions and tyepdefs. -*/ - -typedef struct -{ /* Warning, this filename is NOT nul terminated. */ - char filename [22] ; - char software [20] ; - char sample_name [22] ; - - int loop_begin, loop_end ; - int sample_flags ; - - /* Data for encoder and decoder. */ - short last_16 ; -} XI_PRIVATE ; - -static int xi_close (SF_PRIVATE *psf) ; -static int xi_write_header (SF_PRIVATE *psf, int calc_length) ; -static int xi_read_header (SF_PRIVATE *psf) ; -static int dpcm_init (SF_PRIVATE *psf) ; - - -static sf_count_t dpcm_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ; - -/*------------------------------------------------------------------------------ -** Public function. -*/ - -int -xi_open (SF_PRIVATE *psf) -{ XI_PRIVATE *pxi ; - int subformat, error = 0 ; - - if (psf->is_pipe) - return SFE_XI_NO_PIPE ; - - if (psf->codec_data) - pxi = psf->codec_data ; - else if ((pxi = calloc (1, sizeof (XI_PRIVATE))) == NULL) - return SFE_MALLOC_FAILED ; - - psf->codec_data = pxi ; - - if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) - { if ((error = xi_read_header (psf))) - return error ; - } ; - - subformat = SF_CODEC (psf->sf.format) ; - - if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) - { if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_XI) - return SFE_BAD_OPEN_FORMAT ; - - psf->endian = SF_ENDIAN_LITTLE ; - psf->sf.channels = 1 ; /* Always mono */ - psf->sf.samplerate = 44100 ; /* Always */ - - /* Set up default instrument and software name. */ - memcpy (pxi->filename, "Default Name ", sizeof (pxi->filename)) ; - memcpy (pxi->software, PACKAGE "-" VERSION " ", sizeof (pxi->software)) ; - - memset (pxi->sample_name, 0, sizeof (pxi->sample_name)) ; - snprintf (pxi->sample_name, sizeof (pxi->sample_name), "%s", "Sample #1") ; - - pxi->sample_flags = (subformat == SF_FORMAT_DPCM_16) ? 16 : 0 ; - - if (xi_write_header (psf, SF_FALSE)) - return psf->error ; - - psf->write_header = xi_write_header ; - } ; - - psf->container_close = xi_close ; - psf->seek = dpcm_seek ; - - psf->sf.seekable = SF_FALSE ; - - psf->blockwidth = psf->bytewidth * psf->sf.channels ; - - switch (subformat) - { case SF_FORMAT_DPCM_8 : /* 8-bit differential PCM. */ - case SF_FORMAT_DPCM_16 : /* 16-bit differential PCM. */ - error = dpcm_init (psf) ; - break ; - - default : break ; - } ; - - return error ; -} /* xi_open */ - -/*------------------------------------------------------------------------------ -*/ - -static int -xi_close (SF_PRIVATE * UNUSED (psf)) -{ - return 0 ; -} /* xi_close */ - -/*============================================================================== -*/ - -static sf_count_t dpcm_read_dsc2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; -static sf_count_t dpcm_read_dsc2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; -static sf_count_t dpcm_read_dsc2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; -static sf_count_t dpcm_read_dsc2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; - -static sf_count_t dpcm_write_s2dsc (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; -static sf_count_t dpcm_write_i2dsc (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; -static sf_count_t dpcm_write_f2dsc (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; -static sf_count_t dpcm_write_d2dsc (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; - -static sf_count_t dpcm_read_dles2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ; -static sf_count_t dpcm_read_dles2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ; -static sf_count_t dpcm_read_dles2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ; -static sf_count_t dpcm_read_dles2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ; - -static sf_count_t dpcm_write_s2dles (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ; -static sf_count_t dpcm_write_i2dles (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ; -static sf_count_t dpcm_write_f2dles (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ; -static sf_count_t dpcm_write_d2dles (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ; - -static int -dpcm_init (SF_PRIVATE *psf) -{ if (psf->bytewidth == 0 || psf->sf.channels == 0) - return SFE_INTERNAL ; - - psf->blockwidth = psf->bytewidth * psf->sf.channels ; - - if (psf->file.mode == SFM_READ || psf->file.mode == SFM_RDWR) - { switch (psf->bytewidth) - { case 1 : - psf->read_short = dpcm_read_dsc2s ; - psf->read_int = dpcm_read_dsc2i ; - psf->read_float = dpcm_read_dsc2f ; - psf->read_double = dpcm_read_dsc2d ; - break ; - case 2 : - psf->read_short = dpcm_read_dles2s ; - psf->read_int = dpcm_read_dles2i ; - psf->read_float = dpcm_read_dles2f ; - psf->read_double = dpcm_read_dles2d ; - break ; - default : - psf_log_printf (psf, "dpcm_init() returning SFE_UNIMPLEMENTED\n") ; - return SFE_UNIMPLEMENTED ; - } ; - } ; - - if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) - { switch (psf->bytewidth) - { case 1 : - psf->write_short = dpcm_write_s2dsc ; - psf->write_int = dpcm_write_i2dsc ; - psf->write_float = dpcm_write_f2dsc ; - psf->write_double = dpcm_write_d2dsc ; - break ; - case 2 : - psf->write_short = dpcm_write_s2dles ; - psf->write_int = dpcm_write_i2dles ; - psf->write_float = dpcm_write_f2dles ; - psf->write_double = dpcm_write_d2dles ; - break ; - default : - psf_log_printf (psf, "dpcm_init() returning SFE_UNIMPLEMENTED\n") ; - return SFE_UNIMPLEMENTED ; - } ; - } ; - - psf->filelength = psf_get_filelen (psf) ; - psf->datalength = (psf->dataend) ? psf->dataend - psf->dataoffset : - psf->filelength - psf->dataoffset ; - psf->sf.frames = psf->datalength / psf->blockwidth ; - - return 0 ; -} /* dpcm_init */ - -/*============================================================================== -*/ - -static sf_count_t -dpcm_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) -{ XI_PRIVATE *pxi ; - int total, bufferlen, len ; - - if ((pxi = psf->codec_data) == NULL) - return SFE_INTERNAL ; - - if (psf->datalength < 0 || psf->dataoffset < 0) - { psf->error = SFE_BAD_SEEK ; - return PSF_SEEK_ERROR ; - } ; - - if (offset == 0) - { psf_fseek (psf, psf->dataoffset, SEEK_SET) ; - pxi->last_16 = 0 ; - return 0 ; - } ; - - if (offset < 0 || offset > psf->sf.frames) - { psf->error = SFE_BAD_SEEK ; - return PSF_SEEK_ERROR ; - } ; - - if (mode != SFM_READ) - { /* What to do about write??? */ - psf->error = SFE_BAD_SEEK ; - return PSF_SEEK_ERROR ; - } ; - - psf_fseek (psf, psf->dataoffset, SEEK_SET) ; - - if ((SF_CODEC (psf->sf.format)) == SF_FORMAT_DPCM_16) - { total = offset ; - bufferlen = ARRAY_LEN (psf->u.sbuf) ; - while (total > 0) - { len = (total > bufferlen) ? bufferlen : total ; - total -= dpcm_read_dles2s (psf, psf->u.sbuf, len) ; - } ; - } - else - { total = offset ; - bufferlen = ARRAY_LEN (psf->u.sbuf) ; - while (total > 0) - { len = (total > bufferlen) ? bufferlen : total ; - total -= dpcm_read_dsc2s (psf, psf->u.sbuf, len) ; - } ; - } ; - - return offset ; -} /* dpcm_seek */ - - -static int -xi_write_header (SF_PRIVATE *psf, int UNUSED (calc_length)) -{ XI_PRIVATE *pxi ; - sf_count_t current ; - const char *string ; - - if ((pxi = psf->codec_data) == NULL) - return SFE_INTERNAL ; - - current = psf_ftell (psf) ; - - /* Reset the current header length to zero. */ - psf->header [0] = 0 ; - psf->headindex = 0 ; - psf_fseek (psf, 0, SEEK_SET) ; - - string = "Extended Instrument: " ; - psf_binheader_writef (psf, "b", string, strlen (string)) ; - psf_binheader_writef (psf, "b1", pxi->filename, sizeof (pxi->filename), 0x1A) ; - - /* Write software version and two byte XI version. */ - psf_binheader_writef (psf, "eb2", pxi->software, sizeof (pxi->software), (1 << 8) + 2) ; - - /* - ** Jump note numbers (96), volume envelope (48), pan envelope (48), - ** volume points (1), pan points (1) - */ - psf_binheader_writef (psf, "z", (size_t) (96 + 48 + 48 + 1 + 1)) ; - - /* Jump volume loop (3 bytes), pan loop (3), envelope flags (3), vibrato (3) - ** fade out (2), 22 unknown bytes, and then write sample_count (2 bytes). - */ - psf_binheader_writef (psf, "ez2z2", (size_t) (4 * 3), 0x1234, make_size_t (22), 1) ; - - pxi->loop_begin = 0 ; - pxi->loop_end = 0 ; - - psf_binheader_writef (psf, "et844", psf->sf.frames, pxi->loop_begin, pxi->loop_end) ; - - /* volume, fine tune, flags, pan, note, namelen */ - psf_binheader_writef (psf, "111111", 128, 0, pxi->sample_flags, 128, 0, strlen (pxi->sample_name)) ; - - psf_binheader_writef (psf, "b", pxi->sample_name, sizeof (pxi->sample_name)) ; - - - - - - /* Header construction complete so write it out. */ - psf_fwrite (psf->header, psf->headindex, 1, psf) ; - - if (psf->error) - return psf->error ; - - psf->dataoffset = psf->headindex ; - - if (current > 0) - psf_fseek (psf, current, SEEK_SET) ; - - return psf->error ; -} /* xi_write_header */ - -static int -xi_read_header (SF_PRIVATE *psf) -{ char buffer [64], name [32] ; - short version, fade_out, sample_count ; - int k, loop_begin, loop_end ; - int sample_sizes [MAX_XI_SAMPLES] ; - - psf_binheader_readf (psf, "pb", 0, buffer, 21) ; - - memset (sample_sizes, 0, sizeof (sample_sizes)) ; - - buffer [20] = 0 ; - if (strcmp (buffer, "Extended Instrument:") != 0) - return SFE_XI_BAD_HEADER ; - - memset (buffer, 0, sizeof (buffer)) ; - psf_binheader_readf (psf, "b", buffer, 23) ; - - if (buffer [22] != 0x1A) - return SFE_XI_BAD_HEADER ; - - buffer [22] = 0 ; - psf_log_printf (psf, "Extended Instrument : %s\n", buffer) ; - - psf_binheader_readf (psf, "be2", buffer, 20, &version) ; - buffer [19] = 0 ; - psf_log_printf (psf, "Software : %s\nVersion : %d.%02d\n", buffer, version / 256, version % 256) ; - - /* Jump note numbers (96), volume envelope (48), pan envelope (48), - ** volume points (1), pan points (1) - */ - psf_binheader_readf (psf, "j", 96 + 48 + 48 + 1 + 1) ; - - psf_binheader_readf (psf, "b", buffer, 12) ; - psf_log_printf (psf, "Volume Loop\n sustain : %u\n begin : %u\n end : %u\n", - buffer [0], buffer [1], buffer [2]) ; - psf_log_printf (psf, "Pan Loop\n sustain : %u\n begin : %u\n end : %u\n", - buffer [3], buffer [4], buffer [5]) ; - psf_log_printf (psf, "Envelope Flags\n volume : 0x%X\n pan : 0x%X\n", - buffer [6] & 0xFF, buffer [7] & 0xFF) ; - - psf_log_printf (psf, "Vibrato\n type : %u\n sweep : %u\n depth : %u\n rate : %u\n", - buffer [8], buffer [9], buffer [10], buffer [11]) ; - - /* - ** Read fade_out then jump reserved (2 bytes) and ???? (20 bytes) and - ** sample_count. - */ - psf_binheader_readf (psf, "e2j2", &fade_out, 2 + 20, &sample_count) ; - psf_log_printf (psf, "Fade out : %d\n", fade_out) ; - - /* XI file can contain up to 16 samples. */ - if (sample_count > MAX_XI_SAMPLES) - return SFE_XI_EXCESS_SAMPLES ; - - if (psf->instrument == NULL && (psf->instrument = psf_instrument_alloc ()) == NULL) - return SFE_MALLOC_FAILED ; - - /* Log all data for each sample. */ - for (k = 0 ; k < sample_count ; k++) - { psf_binheader_readf (psf, "e444", &(sample_sizes [k]), &loop_begin, &loop_end) ; - - /* Read 5 know bytes, 1 unknown byte and 22 name bytes. */ - psf_binheader_readf (psf, "bb", buffer, 6, name, 22) ; - name [21] = 0 ; - - psf_log_printf (psf, "Sample #%d\n name : %s\n", k + 1, name) ; - - psf_log_printf (psf, " size : %d\n", sample_sizes [k]) ; - - - - psf_log_printf (psf, " loop\n begin : %d\n end : %d\n", loop_begin, loop_end) ; - - psf_log_printf (psf, " volume : %u\n f. tune : %d\n flags : 0x%02X ", - buffer [0] & 0xFF, buffer [1] & 0xFF, buffer [2] & 0xFF) ; - - psf_log_printf (psf, " (") ; - if (buffer [2] & 1) - psf_log_printf (psf, " Loop") ; - if (buffer [2] & 2) - psf_log_printf (psf, " PingPong") ; - psf_log_printf (psf, (buffer [2] & 16) ? " 16bit" : " 8bit") ; - psf_log_printf (psf, " )\n") ; - - psf_log_printf (psf, " pan : %u\n note : %d\n namelen : %d\n", - buffer [3] & 0xFF, buffer [4], buffer [5]) ; - - if (k != 0) - continue ; - - if (buffer [2] & 16) - { psf->sf.format = SF_FORMAT_XI | SF_FORMAT_DPCM_16 ; - psf->bytewidth = 2 ; - } - else - { psf->sf.format = SF_FORMAT_XI | SF_FORMAT_DPCM_8 ; - psf->bytewidth = 1 ; - } ; - } ; - - while (sample_count > 1 && sample_sizes [sample_count - 1] == 0) - sample_count -- ; - - /* Currently, we can only handle 1 sample per file. */ - - if (sample_count > 2) - { psf_log_printf (psf, "*** Sample count is less than 16 but more than 1.\n") ; - psf_log_printf (psf, " sample count : %d sample_sizes [%d] : %d\n", - sample_count, sample_count - 1, sample_sizes [sample_count - 1]) ; - return SFE_XI_EXCESS_SAMPLES ; - } ; - - psf->datalength = sample_sizes [0] ; - - psf->dataoffset = psf_ftell (psf) ; - if (psf->dataoffset < 0) - { psf_log_printf (psf, "*** Bad Data Offset : %D\n", psf->dataoffset) ; - return SFE_BAD_OFFSET ; - } ; - psf_log_printf (psf, "Data Offset : %D\n", psf->dataoffset) ; - - if (psf->dataoffset + psf->datalength > psf->filelength) - { psf_log_printf (psf, "*** File seems to be truncated. Should be at least %D bytes long.\n", - psf->dataoffset + sample_sizes [0]) ; - psf->datalength = psf->filelength - psf->dataoffset ; - } ; - - if (psf_fseek (psf, psf->dataoffset, SEEK_SET) != psf->dataoffset) - return SFE_BAD_SEEK ; - - psf->endian = SF_ENDIAN_LITTLE ; - psf->sf.channels = 1 ; /* Always mono */ - psf->sf.samplerate = 44100 ; /* Always */ - - psf->blockwidth = psf->sf.channels * psf->bytewidth ; - - if (! psf->sf.frames && psf->blockwidth) - psf->sf.frames = (psf->filelength - psf->dataoffset) / psf->blockwidth ; - - psf->instrument->basenote = 0 ; - psf->instrument->gain = 1 ; - psf->instrument->velocity_lo = psf->instrument->key_lo = 0 ; - psf->instrument->velocity_hi = psf->instrument->key_hi = 127 ; - - return 0 ; -} /* xi_read_header */ - -/*============================================================================== -*/ - -static void dsc2s_array (XI_PRIVATE *pxi, signed char *src, int count, short *dest) ; -static void dsc2i_array (XI_PRIVATE *pxi, signed char *src, int count, int *dest) ; -static void dsc2f_array (XI_PRIVATE *pxi, signed char *src, int count, float *dest, float normfact) ; -static void dsc2d_array (XI_PRIVATE *pxi, signed char *src, int count, double *dest, double normfact) ; - -static void dles2s_array (XI_PRIVATE *pxi, short *src, int count, short *dest) ; -static void dles2i_array (XI_PRIVATE *pxi, short *src, int count, int *dest) ; -static void dles2f_array (XI_PRIVATE *pxi, short *src, int count, float *dest, float normfact) ; -static void dles2d_array (XI_PRIVATE *pxi, short *src, int count, double *dest, double normfact) ; - -static sf_count_t -dpcm_read_dsc2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) -{ XI_PRIVATE *pxi ; - int bufferlen, readcount ; - sf_count_t total = 0 ; - - if ((pxi = psf->codec_data) == NULL) - return 0 ; - - bufferlen = ARRAY_LEN (psf->u.ucbuf) ; - - while (len > 0) - { if (len < bufferlen) - bufferlen = (int) len ; - readcount = psf_fread (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; - dsc2s_array (pxi, psf->u.scbuf, readcount, ptr + total) ; - total += readcount ; - if (readcount < bufferlen) - break ; - len -= readcount ; - } ; - - return total ; -} /* dpcm_read_dsc2s */ - -static sf_count_t -dpcm_read_dsc2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) -{ XI_PRIVATE *pxi ; - int bufferlen, readcount ; - sf_count_t total = 0 ; - - if ((pxi = psf->codec_data) == NULL) - return 0 ; - - bufferlen = ARRAY_LEN (psf->u.ucbuf) ; - - while (len > 0) - { if (len < bufferlen) - bufferlen = (int) len ; - readcount = psf_fread (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; - dsc2i_array (pxi, psf->u.scbuf, readcount, ptr + total) ; - total += readcount ; - if (readcount < bufferlen) - break ; - len -= readcount ; - } ; - - return total ; -} /* dpcm_read_dsc2i */ - -static sf_count_t -dpcm_read_dsc2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) -{ XI_PRIVATE *pxi ; - int bufferlen, readcount ; - sf_count_t total = 0 ; - float normfact ; - - if ((pxi = psf->codec_data) == NULL) - return 0 ; - - normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x80) : 1.0 ; - - bufferlen = ARRAY_LEN (psf->u.ucbuf) ; - - while (len > 0) - { if (len < bufferlen) - bufferlen = (int) len ; - readcount = psf_fread (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; - dsc2f_array (pxi, psf->u.scbuf, readcount, ptr + total, normfact) ; - total += readcount ; - if (readcount < bufferlen) - break ; - len -= readcount ; - } ; - - return total ; -} /* dpcm_read_dsc2f */ - -static sf_count_t -dpcm_read_dsc2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) -{ XI_PRIVATE *pxi ; - int bufferlen, readcount ; - sf_count_t total = 0 ; - double normfact ; - - if ((pxi = psf->codec_data) == NULL) - return 0 ; - - normfact = (psf->norm_double == SF_TRUE) ? 1.0 / ((double) 0x80) : 1.0 ; - - bufferlen = ARRAY_LEN (psf->u.ucbuf) ; - - while (len > 0) - { if (len < bufferlen) - bufferlen = (int) len ; - readcount = psf_fread (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; - dsc2d_array (pxi, psf->u.scbuf, readcount, ptr + total, normfact) ; - total += readcount ; - if (readcount < bufferlen) - break ; - len -= readcount ; - } ; - - return total ; -} /* dpcm_read_dsc2d */ - -/*------------------------------------------------------------------------------ -*/ - -static sf_count_t -dpcm_read_dles2s (SF_PRIVATE *psf, short *ptr, sf_count_t len) -{ XI_PRIVATE *pxi ; - int bufferlen, readcount ; - sf_count_t total = 0 ; - - if ((pxi = psf->codec_data) == NULL) - return 0 ; - - bufferlen = ARRAY_LEN (psf->u.sbuf) ; - - while (len > 0) - { if (len < bufferlen) - bufferlen = (int) len ; - readcount = psf_fread (psf->u.sbuf, sizeof (short), bufferlen, psf) ; - dles2s_array (pxi, psf->u.sbuf, readcount, ptr + total) ; - total += readcount ; - if (readcount < bufferlen) - break ; - len -= readcount ; - } ; - - return total ; -} /* dpcm_read_dles2s */ - -static sf_count_t -dpcm_read_dles2i (SF_PRIVATE *psf, int *ptr, sf_count_t len) -{ XI_PRIVATE *pxi ; - int bufferlen, readcount ; - sf_count_t total = 0 ; - - if ((pxi = psf->codec_data) == NULL) - return 0 ; - - bufferlen = ARRAY_LEN (psf->u.sbuf) ; - - while (len > 0) - { if (len < bufferlen) - bufferlen = (int) len ; - readcount = psf_fread (psf->u.sbuf, sizeof (short), bufferlen, psf) ; - dles2i_array (pxi, psf->u.sbuf, readcount, ptr + total) ; - total += readcount ; - if (readcount < bufferlen) - break ; - len -= readcount ; - } ; - - return total ; -} /* dpcm_read_dles2i */ - -static sf_count_t -dpcm_read_dles2f (SF_PRIVATE *psf, float *ptr, sf_count_t len) -{ XI_PRIVATE *pxi ; - int bufferlen, readcount ; - sf_count_t total = 0 ; - float normfact ; - - if ((pxi = psf->codec_data) == NULL) - return 0 ; - - normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x8000) : 1.0 ; - - bufferlen = ARRAY_LEN (psf->u.sbuf) ; - - while (len > 0) - { if (len < bufferlen) - bufferlen = (int) len ; - readcount = psf_fread (psf->u.sbuf, sizeof (short), bufferlen, psf) ; - dles2f_array (pxi, psf->u.sbuf, readcount, ptr + total, normfact) ; - total += readcount ; - if (readcount < bufferlen) - break ; - len -= readcount ; - } ; - - return total ; -} /* dpcm_read_dles2f */ - -static sf_count_t -dpcm_read_dles2d (SF_PRIVATE *psf, double *ptr, sf_count_t len) -{ XI_PRIVATE *pxi ; - int bufferlen, readcount ; - sf_count_t total = 0 ; - double normfact ; - - if ((pxi = psf->codec_data) == NULL) - return 0 ; - - normfact = (psf->norm_double == SF_TRUE) ? 1.0 / ((double) 0x8000) : 1.0 ; - - bufferlen = ARRAY_LEN (psf->u.sbuf) ; - - while (len > 0) - { if (len < bufferlen) - bufferlen = (int) len ; - readcount = psf_fread (psf->u.sbuf, sizeof (short), bufferlen, psf) ; - dles2d_array (pxi, psf->u.sbuf, readcount, ptr + total, normfact) ; - total += readcount ; - if (readcount < bufferlen) - break ; - len -= readcount ; - } ; - - return total ; -} /* dpcm_read_dles2d */ - -/*============================================================================== -*/ - -static void s2dsc_array (XI_PRIVATE *pxi, const short *src, signed char *dest, int count) ; -static void i2dsc_array (XI_PRIVATE *pxi, const int *src, signed char *dest, int count) ; -static void f2dsc_array (XI_PRIVATE *pxi, const float *src, signed char *dest, int count, float normfact) ; -static void d2dsc_array (XI_PRIVATE *pxi, const double *src, signed char *dest, int count, double normfact) ; - -static void s2dles_array (XI_PRIVATE *pxi, const short *src, short *dest, int count) ; -static void i2dles_array (XI_PRIVATE *pxi, const int *src, short *dest, int count) ; -static void f2dles_array (XI_PRIVATE *pxi, const float *src, short *dest, int count, float normfact) ; -static void d2dles_array (XI_PRIVATE *pxi, const double *src, short *dest, int count, double normfact) ; - - -static sf_count_t -dpcm_write_s2dsc (SF_PRIVATE *psf, const short *ptr, sf_count_t len) -{ XI_PRIVATE *pxi ; - int bufferlen, writecount ; - sf_count_t total = 0 ; - - if ((pxi = psf->codec_data) == NULL) - return 0 ; - - bufferlen = ARRAY_LEN (psf->u.ucbuf) ; - - while (len > 0) - { if (len < bufferlen) - bufferlen = (int) len ; - s2dsc_array (pxi, ptr + total, psf->u.scbuf, bufferlen) ; - writecount = psf_fwrite (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; - total += writecount ; - if (writecount < bufferlen) - break ; - len -= writecount ; - } ; - - return total ; -} /* dpcm_write_s2dsc */ - -static sf_count_t -dpcm_write_i2dsc (SF_PRIVATE *psf, const int *ptr, sf_count_t len) -{ XI_PRIVATE *pxi ; - int bufferlen, writecount ; - sf_count_t total = 0 ; - - if ((pxi = psf->codec_data) == NULL) - return 0 ; - - bufferlen = ARRAY_LEN (psf->u.ucbuf) ; - - while (len > 0) - { if (len < bufferlen) - bufferlen = (int) len ; - i2dsc_array (pxi, ptr + total, psf->u.scbuf, bufferlen) ; - writecount = psf_fwrite (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; - total += writecount ; - if (writecount < bufferlen) - break ; - len -= writecount ; - } ; - - return total ; -} /* dpcm_write_i2dsc */ - -static sf_count_t -dpcm_write_f2dsc (SF_PRIVATE *psf, const float *ptr, sf_count_t len) -{ XI_PRIVATE *pxi ; - int bufferlen, writecount ; - sf_count_t total = 0 ; - float normfact ; - - if ((pxi = psf->codec_data) == NULL) - return 0 ; - - normfact = (psf->norm_float == SF_TRUE) ? (1.0 * 0x7F) : 1.0 ; - - bufferlen = ARRAY_LEN (psf->u.ucbuf) ; - - while (len > 0) - { if (len < bufferlen) - bufferlen = (int) len ; - f2dsc_array (pxi, ptr + total, psf->u.scbuf, bufferlen, normfact) ; - writecount = psf_fwrite (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; - total += writecount ; - if (writecount < bufferlen) - break ; - len -= writecount ; - } ; - - return total ; -} /* dpcm_write_f2dsc */ - -static sf_count_t -dpcm_write_d2dsc (SF_PRIVATE *psf, const double *ptr, sf_count_t len) -{ XI_PRIVATE *pxi ; - int bufferlen, writecount ; - sf_count_t total = 0 ; - double normfact ; - - if ((pxi = psf->codec_data) == NULL) - return 0 ; - - normfact = (psf->norm_double == SF_TRUE) ? (1.0 * 0x7F) : 1.0 ; - - bufferlen = ARRAY_LEN (psf->u.ucbuf) ; - - while (len > 0) - { if (len < bufferlen) - bufferlen = (int) len ; - d2dsc_array (pxi, ptr + total, psf->u.scbuf, bufferlen, normfact) ; - writecount = psf_fwrite (psf->u.scbuf, sizeof (signed char), bufferlen, psf) ; - total += writecount ; - if (writecount < bufferlen) - break ; - len -= writecount ; - } ; - - return total ; -} /* dpcm_write_d2dsc */ - - -static sf_count_t -dpcm_write_s2dles (SF_PRIVATE *psf, const short *ptr, sf_count_t len) -{ XI_PRIVATE *pxi ; - int bufferlen, writecount ; - sf_count_t total = 0 ; - - if ((pxi = psf->codec_data) == NULL) - return 0 ; - - bufferlen = ARRAY_LEN (psf->u.sbuf) ; - - while (len > 0) - { if (len < bufferlen) - bufferlen = (int) len ; - s2dles_array (pxi, ptr + total, psf->u.sbuf, bufferlen) ; - writecount = psf_fwrite (psf->u.sbuf, sizeof (short), bufferlen, psf) ; - total += writecount ; - if (writecount < bufferlen) - break ; - len -= writecount ; - } ; - - return total ; -} /* dpcm_write_s2dles */ - -static sf_count_t -dpcm_write_i2dles (SF_PRIVATE *psf, const int *ptr, sf_count_t len) -{ XI_PRIVATE *pxi ; - int bufferlen, writecount ; - sf_count_t total = 0 ; - - if ((pxi = psf->codec_data) == NULL) - return 0 ; - - bufferlen = ARRAY_LEN (psf->u.sbuf) ; - - while (len > 0) - { if (len < bufferlen) - bufferlen = (int) len ; - i2dles_array (pxi, ptr + total, psf->u.sbuf, bufferlen) ; - writecount = psf_fwrite (psf->u.sbuf, sizeof (short), bufferlen, psf) ; - total += writecount ; - if (writecount < bufferlen) - break ; - len -= writecount ; - } ; - - return total ; -} /* dpcm_write_i2dles */ - -static sf_count_t -dpcm_write_f2dles (SF_PRIVATE *psf, const float *ptr, sf_count_t len) -{ XI_PRIVATE *pxi ; - int bufferlen, writecount ; - sf_count_t total = 0 ; - float normfact ; - - if ((pxi = psf->codec_data) == NULL) - return 0 ; - - normfact = (psf->norm_float == SF_TRUE) ? (1.0 * 0x7FFF) : 1.0 ; - - bufferlen = ARRAY_LEN (psf->u.sbuf) ; - - while (len > 0) - { if (len < bufferlen) - bufferlen = (int) len ; - f2dles_array (pxi, ptr + total, psf->u.sbuf, bufferlen, normfact) ; - writecount = psf_fwrite (psf->u.sbuf, sizeof (short), bufferlen, psf) ; - total += writecount ; - if (writecount < bufferlen) - break ; - len -= writecount ; - } ; - - return total ; -} /* dpcm_write_f2dles */ - -static sf_count_t -dpcm_write_d2dles (SF_PRIVATE *psf, const double *ptr, sf_count_t len) -{ XI_PRIVATE *pxi ; - int bufferlen, writecount ; - sf_count_t total = 0 ; - double normfact ; - - if ((pxi = psf->codec_data) == NULL) - return 0 ; - - normfact = (psf->norm_double == SF_TRUE) ? (1.0 * 0x7FFF) : 1.0 ; - - bufferlen = ARRAY_LEN (psf->u.sbuf) ; - - while (len > 0) - { if (len < bufferlen) - bufferlen = (int) len ; - d2dles_array (pxi, ptr + total, psf->u.sbuf, bufferlen, normfact) ; - writecount = psf_fwrite (psf->u.sbuf, sizeof (short), bufferlen, psf) ; - total += writecount ; - if (writecount < bufferlen) - break ; - len -= writecount ; - } ; - - return total ; -} /* dpcm_write_d2dles */ - - -/*============================================================================== -*/ - -static void -dsc2s_array (XI_PRIVATE *pxi, signed char *src, int count, short *dest) -{ signed char last_val ; - int k ; - - last_val = pxi->last_16 >> 8 ; - - for (k = 0 ; k < count ; k++) - { last_val += src [k] ; - dest [k] = last_val << 8 ; - } ; - - pxi->last_16 = last_val << 8 ; -} /* dsc2s_array */ - -static void -dsc2i_array (XI_PRIVATE *pxi, signed char *src, int count, int *dest) -{ signed char last_val ; - int k ; - - last_val = pxi->last_16 >> 8 ; - - for (k = 0 ; k < count ; k++) - { last_val += src [k] ; - dest [k] = last_val << 24 ; - } ; - - pxi->last_16 = last_val << 8 ; -} /* dsc2i_array */ - -static void -dsc2f_array (XI_PRIVATE *pxi, signed char *src, int count, float *dest, float normfact) -{ signed char last_val ; - int k ; - - last_val = pxi->last_16 >> 8 ; - - for (k = 0 ; k < count ; k++) - { last_val += src [k] ; - dest [k] = last_val * normfact ; - } ; - - pxi->last_16 = last_val << 8 ; -} /* dsc2f_array */ - -static void -dsc2d_array (XI_PRIVATE *pxi, signed char *src, int count, double *dest, double normfact) -{ signed char last_val ; - int k ; - - last_val = pxi->last_16 >> 8 ; - - for (k = 0 ; k < count ; k++) - { last_val += src [k] ; - dest [k] = last_val * normfact ; - } ; - - pxi->last_16 = last_val << 8 ; -} /* dsc2d_array */ - -/*------------------------------------------------------------------------------ -*/ - -static void -s2dsc_array (XI_PRIVATE *pxi, const short *src, signed char *dest, int count) -{ signed char last_val, current ; - int k ; - - last_val = pxi->last_16 >> 8 ; - - for (k = 0 ; k < count ; k++) - { current = src [k] >> 8 ; - dest [k] = current - last_val ; - last_val = current ; - } ; - - pxi->last_16 = last_val << 8 ; -} /* s2dsc_array */ - -static void -i2dsc_array (XI_PRIVATE *pxi, const int *src, signed char *dest, int count) -{ signed char last_val, current ; - int k ; - - last_val = pxi->last_16 >> 8 ; - - for (k = 0 ; k < count ; k++) - { current = src [k] >> 24 ; - dest [k] = current - last_val ; - last_val = current ; - } ; - - pxi->last_16 = last_val << 8 ; -} /* i2dsc_array */ - -static void -f2dsc_array (XI_PRIVATE *pxi, const float *src, signed char *dest, int count, float normfact) -{ signed char last_val, current ; - int k ; - - last_val = pxi->last_16 >> 8 ; - - for (k = 0 ; k < count ; k++) - { current = lrintf (src [k] * normfact) ; - dest [k] = current - last_val ; - last_val = current ; - } ; - - pxi->last_16 = last_val << 8 ; -} /* f2dsc_array */ - -static void -d2dsc_array (XI_PRIVATE *pxi, const double *src, signed char *dest, int count, double normfact) -{ signed char last_val, current ; - int k ; - - last_val = pxi->last_16 >> 8 ; - - for (k = 0 ; k < count ; k++) - { current = lrint (src [k] * normfact) ; - dest [k] = current - last_val ; - last_val = current ; - } ; - - pxi->last_16 = last_val << 8 ; -} /* d2dsc_array */ - -/*============================================================================== -*/ - -static void -dles2s_array (XI_PRIVATE *pxi, short *src, int count, short *dest) -{ short last_val ; - int k ; - - last_val = pxi->last_16 ; - - for (k = 0 ; k < count ; k++) - { last_val += LES2H_SHORT (src [k]) ; - dest [k] = last_val ; - } ; - - pxi->last_16 = last_val ; -} /* dles2s_array */ - -static void -dles2i_array (XI_PRIVATE *pxi, short *src, int count, int *dest) -{ short last_val ; - int k ; - - last_val = pxi->last_16 ; - - for (k = 0 ; k < count ; k++) - { last_val += LES2H_SHORT (src [k]) ; - dest [k] = last_val << 16 ; - } ; - - pxi->last_16 = last_val ; -} /* dles2i_array */ - -static void -dles2f_array (XI_PRIVATE *pxi, short *src, int count, float *dest, float normfact) -{ short last_val ; - int k ; - - last_val = pxi->last_16 ; - - for (k = 0 ; k < count ; k++) - { last_val += LES2H_SHORT (src [k]) ; - dest [k] = last_val * normfact ; - } ; - - pxi->last_16 = last_val ; -} /* dles2f_array */ - -static void -dles2d_array (XI_PRIVATE *pxi, short *src, int count, double *dest, double normfact) -{ short last_val ; - int k ; - - last_val = pxi->last_16 ; - - for (k = 0 ; k < count ; k++) - { last_val += LES2H_SHORT (src [k]) ; - dest [k] = last_val * normfact ; - } ; - - pxi->last_16 = last_val ; -} /* dles2d_array */ - -/*------------------------------------------------------------------------------ -*/ - -static void -s2dles_array (XI_PRIVATE *pxi, const short *src, short *dest, int count) -{ short diff, last_val ; - int k ; - - last_val = pxi->last_16 ; - - for (k = 0 ; k < count ; k++) - { diff = src [k] - last_val ; - dest [k] = LES2H_SHORT (diff) ; - last_val = src [k] ; - } ; - - pxi->last_16 = last_val ; -} /* s2dles_array */ - -static void -i2dles_array (XI_PRIVATE *pxi, const int *src, short *dest, int count) -{ short diff, last_val ; - int k ; - - last_val = pxi->last_16 ; - - for (k = 0 ; k < count ; k++) - { diff = (src [k] >> 16) - last_val ; - dest [k] = LES2H_SHORT (diff) ; - last_val = src [k] >> 16 ; - } ; - - pxi->last_16 = last_val ; -} /* i2dles_array */ - -static void -f2dles_array (XI_PRIVATE *pxi, const float *src, short *dest, int count, float normfact) -{ short diff, last_val, current ; - int k ; - - last_val = pxi->last_16 ; - - for (k = 0 ; k < count ; k++) - { current = lrintf (src [k] * normfact) ; - diff = current - last_val ; - dest [k] = LES2H_SHORT (diff) ; - last_val = current ; - } ; - - pxi->last_16 = last_val ; -} /* f2dles_array */ - -static void -d2dles_array (XI_PRIVATE *pxi, const double *src, short *dest, int count, double normfact) -{ short diff, last_val, current ; - int k ; - - last_val = pxi->last_16 ; - - for (k = 0 ; k < count ; k++) - { current = lrint (src [k] * normfact) ; - diff = current - last_val ; - dest [k] = LES2H_SHORT (diff) ; - last_val = current ; - } ; - - pxi->last_16 = last_val ; -} /* d2dles_array */ -