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-rw-r--r--nylsf/rx2.c326
1 files changed, 326 insertions, 0 deletions
diff --git a/nylsf/rx2.c b/nylsf/rx2.c
new file mode 100644
index 0000000..d95f11f
--- /dev/null
+++ b/nylsf/rx2.c
@@ -0,0 +1,326 @@
+/*
+** Copyright (C) 2001-2004 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 (psf && 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"
+ } ;
+
+ 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 (psf->u.cbuf))
+ { psf_log_printf (psf, " Text : %d *** Error : Too sf_count_t!\n") ;
+ return -1001 ;
+ }
+
+ memset (psf->u.cbuf, 0, sizeof (psf->u.cbuf)) ;
+ psf_binheader_readf (psf, "b", psf->u.cbuf, length) ;
+ psf_log_printf (psf, " Text : \"%s\"\n", psf->u.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->logbuffer) ;
+ 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->logbuffer [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->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
+/*
+** 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: 7366e813-9fee-4d1f-881e-e4a691469370
+*/
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