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furnace/extern/libsndfile-modified/src/rx2.c

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desubmodulize libsndfile - PLEASE READ it appears a one-character typo in the cmake_minimum_required line prevents it from compiling under CMake 4.0. in order to fix that, I had to take this thing out of submodules... it is recommended to do this after you pull; git submodule deinit extern/libsndfile
2025-04-02 16:09:53 -04:00
/*
** Copyright (C) 2001-2012 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 <string.h>
#include <ctype.h>
#include <stdarg.h>
#include "sndfile.h"
#include "sfendian.h"
#include "common.h"
#if (ENABLE_EXPERIMENTAL_CODE == 0)
int
rx2_open (SF_PRIVATE *psf)
{ if (psf)
return SFE_UNIMPLEMENTED ;
return 0 ;
} /* rx2_open */
#else
/*------------------------------------------------------------------------------
* Macros to handle big/little endian issues.
*/
#define CAT_MARKER (MAKE_MARKER ('C', 'A', 'T', ' '))
#define GLOB_MARKER (MAKE_MARKER ('G', 'L', 'O', 'B'))
#define RECY_MARKER (MAKE_MARKER ('R', 'E', 'C', 'Y'))
#define SLCL_MARKER (MAKE_MARKER ('S', 'L', 'C', 'L'))
#define SLCE_MARKER (MAKE_MARKER ('S', 'L', 'C', 'E'))
#define DEVL_MARKER (MAKE_MARKER ('D', 'E', 'V', 'L'))
#define TRSH_MARKER (MAKE_MARKER ('T', 'R', 'S', 'H'))
#define EQ_MARKER (MAKE_MARKER ('E', 'Q', ' ', ' '))
#define COMP_MARKER (MAKE_MARKER ('C', 'O', 'M', 'P'))
#define SINF_MARKER (MAKE_MARKER ('S', 'I', 'N', 'F'))
#define SDAT_MARKER (MAKE_MARKER ('S', 'D', 'A', 'T'))
/*------------------------------------------------------------------------------
* Typedefs for file chunks.
*/
/*------------------------------------------------------------------------------
* Private static functions.
*/
static int rx2_close (SF_PRIVATE *psf) ;
/*------------------------------------------------------------------------------
** Public functions.
*/
int
rx2_open (SF_PRIVATE *psf)
{ static const char *marker_type [4] =
{ "Original Enabled", "Enabled Hidden",
"Additional/PencilTool", "Disabled"
} ;
BUF_UNION ubuf ;
int error, marker, length, glob_offset, slce_count, frames ;
int sdat_length = 0, slce_total = 0 ;
int n_channels ;
/* So far only doing read. */
psf_binheader_readf (psf, "Epm4", 0, &marker, &length) ;
if (marker != CAT_MARKER)
{ psf_log_printf (psf, "length : %d\n", length) ;
return -1000 ;
} ;
if (length != psf->filelength - 8)
psf_log_printf (psf, "%M : %d (should be %d)\n", marker, length, psf->filelength - 8) ;
else
psf_log_printf (psf, "%M : %d\n", marker, length) ;
/* 'REX2' marker */
psf_binheader_readf (psf, "m", &marker) ;
psf_log_printf (psf, "%M", marker) ;
/* 'HEAD' marker */
psf_binheader_readf (psf, "m", &marker) ;
psf_log_printf (psf, "%M\n", marker) ;
/* Grab 'GLOB' offset. */
psf_binheader_readf (psf, "E4", &glob_offset) ;
glob_offset += 0x14 ; /* Add the current file offset. */
/* Jump to offset 0x30 */
psf_binheader_readf (psf, "p", 0x30) ;
/* Get name length */
length = 0 ;
psf_binheader_readf (psf, "1", &length) ;
if (length >= SIGNED_SIZEOF (ubuf.cbuf))
{ psf_log_printf (psf, " Text : %d *** Error : Too sf_count_t!\n") ;
return -1001 ;
}
memset (ubuf.cbuf, 0, sizeof (ubuf.cbuf)) ;
psf_binheader_readf (psf, "b", ubuf.cbuf, length) ;
psf_log_printf (psf, " Text : \"%s\"\n", ubuf.cbuf) ;
/* Jump to GLOB offset position. */
if (glob_offset & 1)
glob_offset ++ ;
psf_binheader_readf (psf, "p", glob_offset) ;
slce_count = 0 ;
/* GLOB */
while (1)
{ psf_binheader_readf (psf, "m", &marker) ;
if (marker != SLCE_MARKER && slce_count > 0)
{ psf_log_printf (psf, " SLCE count : %d\n", slce_count) ;
slce_count = 0 ;
}
switch (marker)
{ case GLOB_MARKER:
psf_binheader_readf (psf, "E4", &length) ;
psf_log_printf (psf, " %M : %d\n", marker, length) ;
psf_binheader_readf (psf, "j", length) ;
break ;
case RECY_MARKER:
psf_binheader_readf (psf, "E4", &length) ;
psf_log_printf (psf, " %M : %d\n", marker, length) ;
psf_binheader_readf (psf, "j", (length+1) & 0xFFFFFFFE) ; /* ?????? */
break ;
case CAT_MARKER:
psf_binheader_readf (psf, "E4", &length) ;
psf_log_printf (psf, " %M : %d\n", marker, length) ;
/*-psf_binheader_readf (psf, "j", length) ;-*/
break ;
case DEVL_MARKER:
psf_binheader_readf (psf, "mE4", &marker, &length) ;
psf_log_printf (psf, " DEVL%M : %d\n", marker, length) ;
if (length & 1)
length ++ ;
psf_binheader_readf (psf, "j", length) ;
break ;
case EQ_MARKER:
case COMP_MARKER:
psf_binheader_readf (psf, "E4", &length) ;
psf_log_printf (psf, " %M : %d\n", marker, length) ;
/* This is weird!!!! why make this (length - 1) */
if (length & 1)
length ++ ;
psf_binheader_readf (psf, "j", length) ;
break ;
case SLCL_MARKER:
psf_log_printf (psf, " %M\n (Offset, Next Offset, Type)\n", marker) ;
slce_count = 0 ;
break ;
case SLCE_MARKER:
{ int len [4], indx ;
psf_binheader_readf (psf, "E4444", &len [0], &len [1], &len [2], &len [3]) ;
indx = ((len [3] & 0x0000FFFF) >> 8) & 3 ;
if (len [2] == 1)
{ if (indx != 1)
indx = 3 ; /* 2 cases, where next slice offset = 1 -> disabled & enabled/hidden */
psf_log_printf (psf, " %M : (%6d, ?: 0x%X, %s)\n", marker, len [1], (len [3] & 0xFFFF0000) >> 16, marker_type [indx]) ;
}
else
{ slce_total += len [2] ;
psf_log_printf (psf, " %M : (%6d, SLCE_next_ofs:%d, ?: 0x%X, %s)\n", marker, len [1], len [2], (len [3] & 0xFFFF0000) >> 16, marker_type [indx]) ;
} ;
slce_count ++ ;
} ;
break ;
case SINF_MARKER:
psf_binheader_readf (psf, "E4", &length) ;
psf_log_printf (psf, " %M : %d\n", marker, length) ;
psf_binheader_readf (psf, "E2", &n_channels) ;
n_channels = (n_channels & 0x0000FF00) >> 8 ;
psf_log_printf (psf, " Channels : %d\n", n_channels) ;
psf_binheader_readf (psf, "E44", &psf->sf.samplerate, &frames) ;
psf->sf.frames = frames ;
psf_log_printf (psf, " Sample Rate : %d\n", psf->sf.samplerate) ;
psf_log_printf (psf, " Frames : %D\n", psf->sf.frames) ;
psf_binheader_readf (psf, "E4", &length) ;
psf_log_printf (psf, " ??????????? : %d\n", length) ;
psf_binheader_readf (psf, "E4", &length) ;
psf_log_printf (psf, " ??????????? : %d\n", length) ;
break ;
case SDAT_MARKER:
psf_binheader_readf (psf, "E4", &length) ;
sdat_length = length ;
/* Get the current offset. */
psf->dataoffset = psf_binheader_readf (psf, NULL) ;
if (psf->dataoffset + length != psf->filelength)
psf_log_printf (psf, " %M : %d (should be %d)\n", marker, length, psf->dataoffset + psf->filelength) ;
else
psf_log_printf (psf, " %M : %d\n", marker, length) ;
break ;
default :
psf_log_printf (psf, "Unknown marker : 0x%X %M", marker, marker) ;
return -1003 ;
break ;
} ;
/* SDAT always last marker in file. */
if (marker == SDAT_MARKER)
break ;
} ;
puts (psf->parselog.buf) ;
puts ("-----------------------------------") ;
printf ("SDAT length : %d\n", sdat_length) ;
printf ("SLCE count : %d\n", slce_count) ;
/* Hack for zero slice count. */
if (slce_count == 0 && slce_total == 1)
slce_total = frames ;
printf ("SLCE samples : %d\n", slce_total) ;
/* Two bytes per sample. */
printf ("Comp Ratio : %f:1\n", (2.0 * slce_total * n_channels) / sdat_length) ;
puts (" ") ;
psf->parselog.buf [0] = 0 ;
/* OK, have the header although not too sure what it all means. */
psf->endian = SF_ENDIAN_BIG ;
psf->datalength = psf->filelength - psf->dataoffset ;
if (psf_fseek (psf, psf->dataoffset, SEEK_SET))
return SFE_BAD_SEEK ;
psf->sf.format = (SF_FORMAT_REX2 | SF_FORMAT_DWVW_12) ;
psf->sf.channels = 1 ;
psf->bytewidth = 2 ;
psf->blockwidth = psf->sf.channels * psf->bytewidth ;
if ((error = dwvw_init (psf, 16)))
return error ;
psf->container_close = rx2_close ;
if (! psf->sf.frames && psf->blockwidth)
psf->sf.frames = psf->datalength / psf->blockwidth ;
/* All done. */
return 0 ;
} /* rx2_open */
/*------------------------------------------------------------------------------
*/
static int
rx2_close (SF_PRIVATE *psf)
{
if (psf->file.mode == SFM_WRITE)
{ /* Now we know for certain the length of the file we can re-write
** correct values for the FORM, 8SVX and BODY chunks.
*/
} ;
return 0 ;
} /* rx2_close */
#endif
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