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sndlib2xen.c
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sndlib2xen.c
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/* Tie sndlib into Xen */
#include "mus-config.h"
#if USE_SND
#include "snd.h"
#else
#if HAVE_RUBY
#define PROC_FALSE "false"
#define PROC_TRUE "true"
#endif
#if HAVE_SCHEME || HAVE_FORTH
#define PROC_FALSE "#f"
#define PROC_TRUE "#t"
#endif
#endif
#include <stddef.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <string.h>
#include <errno.h>
#ifdef _MSC_VER
#pragma warning(disable: 4244)
#endif
#include "_sndlib.h"
#include "sndlib-strings.h"
#include "vct.h"
#include "clm.h"
#include "sndlib2xen.h"
#include "clm2xen.h"
#ifndef S_set
#if HAVE_RUBY
#define S_set "set_"
#endif
#if HAVE_SCHEME
#define S_set "set! "
#endif
#if HAVE_FORTH
#define S_set "set-"
#endif
#endif
/* originally I tried to simplify C GC by using global static strings that were
* freed whenever the associated function was called again, on the assumption
* that the preceding value was now unused. In a multithread context, that
* assumption is false, so I didn't use code like this:
*
* static char *tmpstr = NULL;
*
* static char *local_mus_expand_filename(char *name)
* {
* if (tmpstr) {free(tmpstr); tmpstr = NULL;}
* tmpstr = mus_expand_filename(name);
* return(tmpstr);
* }
*/
static Xen g_mus_sound_loop_info(Xen gfilename)
{
#define H_mus_sound_loop_info "(" S_mus_sound_loop_info " filename): synth loop info for sound as a list: (start1 \
end1 start2 end2 base-note base-detune mode1 mode2)"
int *res;
Xen sres = Xen_empty_list;
char *str = NULL;
Xen_check_type(Xen_is_string(gfilename), gfilename, 1, S_mus_sound_loop_info, "a string");
res = mus_sound_loop_info(str = mus_expand_filename(Xen_string_to_C_string(gfilename)));
if (str) free(str);
if (res)
{
sres = Xen_list_8(C_int_to_Xen_integer(res[0]), C_int_to_Xen_integer(res[1]), C_int_to_Xen_integer(res[2]),
C_int_to_Xen_integer(res[3]), C_int_to_Xen_integer(res[4]), C_int_to_Xen_integer(res[5]),
C_int_to_Xen_integer(res[6]), C_int_to_Xen_integer(res[7]));
free(res);
}
return(sres);
}
static Xen g_mus_sound_mark_info(Xen gfilename)
{
#define H_mus_sound_mark_info "(" S_mus_sound_mark_info " filename): aifc header mark info as a list of lists: ((id pos)...)"
int *mark_ids, *mark_positions;
int marks = 0;
Xen sres = Xen_empty_list;
char *str = NULL;
Xen_check_type(Xen_is_string(gfilename), gfilename, 1, S_mus_sound_mark_info, "a string");
marks = mus_sound_mark_info(str = mus_expand_filename(Xen_string_to_C_string(gfilename)), &mark_ids, &mark_positions);
if (str) free(str);
if (marks > 0)
{
int i;
for (i = 0; i < marks; i++)
sres = Xen_cons(Xen_list_2(C_int_to_Xen_integer(mark_ids[i]),
C_int_to_Xen_integer(mark_positions[i])),
sres);
}
return(sres);
}
static Xen gmus_sound(const char *caller, int (*func)(const char *file), Xen gfilename)
{
char *str = NULL;
Xen result;
Xen_check_type(Xen_is_string(gfilename), gfilename, 1, caller, "a string");
str = mus_expand_filename(Xen_string_to_C_string(gfilename));
result = C_int_to_Xen_integer((*func)(str));
if (str) free(str);
return(result);
}
static Xen gmus_sound_set(const char *caller, int (*func)(const char *file, int newval), Xen gfilename, Xen val)
{
char *str = NULL;
Xen result;
Xen_check_type(Xen_is_string(gfilename), gfilename, 1, caller, "a string");
Xen_check_type(Xen_is_integer(val), val, 2, caller, "an integer");
str = mus_expand_filename(Xen_string_to_C_string(gfilename));
result = C_int_to_Xen_integer((*func)(str, Xen_integer_to_C_int(val)));
if (str) free(str);
return(result);
}
static Xen glmus_sound(const char *caller, mus_long_t (*func)(const char *file), Xen gfilename)
{
char *str = NULL;
Xen result;
Xen_check_type(Xen_is_string(gfilename), gfilename, 1, caller, "a string");
str = mus_expand_filename(Xen_string_to_C_string(gfilename));
result = C_llong_to_Xen_llong((*func)(str));
if (str) free(str);
return(result);
}
static Xen glmus_sound_set(const char *caller, int (*func)(const char *file, mus_long_t newval), Xen gfilename, Xen val)
{
char *str = NULL;
Xen result;
Xen_check_type(Xen_is_string(gfilename), gfilename, 1, caller, "a string");
Xen_check_type(Xen_is_number(val), val, 2, caller, "a number");
str = mus_expand_filename(Xen_string_to_C_string(gfilename));
result = C_llong_to_Xen_llong((*func)(str, Xen_llong_to_C_llong(val)));
if (str) free(str);
return(result);
}
static Xen g_mus_sound_samples(Xen filename)
{
#define H_mus_sound_samples "(" S_mus_sound_samples " filename): samples (framples * channels) in sound file"
return(glmus_sound(S_mus_sound_samples, mus_sound_samples, filename));
}
static Xen g_mus_sound_set_samples(Xen filename, Xen val)
{
return(glmus_sound_set(S_set S_mus_sound_samples, mus_sound_set_samples, filename, val));
}
Xen g_mus_sound_framples(Xen filename)
{
#define H_mus_sound_framples "(" S_mus_sound_framples " filename): framples (samples / channel) in sound file"
return(glmus_sound(S_mus_sound_framples, mus_sound_framples, filename));
}
static Xen g_mus_sound_datum_size(Xen filename)
{
#define H_mus_sound_datum_size "(" S_mus_sound_datum_size " filename): bytes per sample used by the data in sound file (sample type dependent)"
return(gmus_sound(S_mus_sound_datum_size, mus_sound_datum_size, filename));
}
static Xen g_mus_sound_data_location(Xen filename)
{
#define H_mus_sound_data_location "(" S_mus_sound_data_location " filename): location (in bytes) of first sample of sound data"
return(glmus_sound(S_mus_sound_data_location, mus_sound_data_location, filename));
}
static Xen g_mus_sound_set_data_location(Xen filename, Xen val)
{
return(glmus_sound_set(S_set S_mus_sound_data_location, mus_sound_set_data_location, filename, val));
}
Xen g_mus_sound_chans(Xen filename)
{
#define H_mus_sound_chans "(" S_mus_sound_chans " filename): channels of data in sound file"
return(gmus_sound(S_mus_sound_chans, mus_sound_chans, filename));
}
static Xen g_mus_sound_set_chans(Xen filename, Xen val)
{
return(gmus_sound_set(S_set S_mus_sound_chans, mus_sound_set_chans, filename, val));
}
Xen g_mus_sound_srate(Xen filename)
{
#define H_mus_sound_srate "(" S_mus_sound_srate " filename): sampling rate of sound file"
return(gmus_sound(S_mus_sound_srate, mus_sound_srate, filename));
}
static Xen g_mus_sound_set_srate(Xen filename, Xen val)
{
return(gmus_sound_set(S_set S_mus_sound_srate, mus_sound_set_srate, filename, val));
}
static Xen g_mus_sound_header_type(Xen filename)
{
#define H_mus_sound_header_type "(" S_mus_sound_header_type " filename): header type (e.g. " S_mus_aifc ") of sound file"
char *str = NULL;
Xen result;
Xen_check_type(Xen_is_string(filename), filename, 1, S_mus_sound_header_type, "a string");
str = mus_expand_filename(Xen_string_to_C_string(filename));
result = C_int_to_Xen_integer((int)mus_sound_header_type(str));
if (str) free(str);
return(result);
}
static Xen g_mus_sound_set_header_type(Xen filename, Xen val)
{
char *str = NULL;
Xen result;
Xen_check_type(Xen_is_string(filename), filename, 1, S_set S_mus_sound_header_type, "a string");
Xen_check_type(Xen_is_integer(val), val, 2, S_set S_mus_sound_header_type, "an integer");
str = mus_expand_filename(Xen_string_to_C_string(filename));
result = C_int_to_Xen_integer((int)mus_sound_set_header_type(str, (mus_header_t)Xen_integer_to_C_int(val)));
if (str) free(str);
return(result);
}
static Xen g_mus_sound_sample_type(Xen filename)
{
#define H_mus_sound_sample_type "(" S_mus_sound_sample_type " filename): sample type (e.g. " S_mus_bshort ") of data in sound file"
char *str = NULL;
Xen result;
Xen_check_type(Xen_is_string(filename), filename, 1, S_mus_sound_sample_type, "a string");
str = mus_expand_filename(Xen_string_to_C_string(filename));
result = C_int_to_Xen_integer((int)mus_sound_sample_type(str));
if (str) free(str);
return(result);
}
static Xen g_mus_sound_set_sample_type(Xen filename, Xen val)
{
char *str = NULL;
Xen result;
Xen_check_type(Xen_is_string(filename), filename, 1, S_set S_mus_sound_sample_type, "a string");
Xen_check_type(Xen_is_integer(val), val, 2, S_set S_mus_sound_sample_type, "an integer");
str = mus_expand_filename(Xen_string_to_C_string(filename));
result = C_int_to_Xen_integer((int)mus_sound_set_sample_type(str, (mus_sample_t)Xen_integer_to_C_int(val)));
if (str) free(str);
return(result);
}
static Xen g_mus_sound_length(Xen filename)
{
#define H_mus_sound_length "(" S_mus_sound_length " filename): sound file length in bytes"
return(glmus_sound(S_mus_sound_length, mus_sound_length, filename));
}
static Xen g_mus_sound_type_specifier(Xen filename)
{
#define H_mus_sound_type_specifier "(" S_mus_sound_type_specifier " filename): original sound file header type identifier (e.g. 0x2e736e64)"
return(gmus_sound(S_mus_sound_type_specifier, mus_sound_type_specifier, filename));
}
static Xen g_mus_sound_forget(Xen filename)
{
#define H_mus_sound_forget "(" S_mus_sound_forget " filename): remove 'filename' from sound cache. If you create, then later \
delete a sound file, " S_mus_sound_forget " can be used to clear it from sndlib's cache of sound files"
return(gmus_sound(S_mus_sound_forget, mus_sound_forget, filename));
}
static Xen g_mus_sound_prune(void)
{
#define H_mus_sound_prune "(" S_mus_sound_prune "): remove all defunct entries from sndlib's sound file cache."
return(C_int_to_Xen_integer(mus_sound_prune()));
}
static Xen g_mus_sound_comment(Xen gfilename)
{
#define H_mus_sound_comment "(" S_mus_sound_comment " filename): comment (a string) found in sound file's header"
char *res = NULL, *str = NULL;
Xen newstr;
Xen_check_type(Xen_is_string(gfilename), gfilename, 1, S_mus_sound_comment, "a string");
res = mus_sound_comment(str = mus_expand_filename(Xen_string_to_C_string(gfilename)));
if (str) free(str);
newstr = C_string_to_Xen_string(res);
if (res) free(res);
return(newstr);
}
static Xen g_mus_sound_write_date(Xen filename)
{
char *str = NULL;
Xen result;
#define H_mus_sound_write_date "(" S_mus_sound_write_date " filename): write date of sound file"
Xen_check_type(Xen_is_string(filename), filename, 1, S_mus_sound_write_date, "a string");
str = mus_expand_filename(Xen_string_to_C_string(filename));
result = C_ulong_to_Xen_ulong((unsigned long)mus_sound_write_date(str)); /* actually time_t */
if (str) free(str);
return(result);
}
static Xen g_mus_header_writable(Xen head, Xen data)
{
#define H_mus_header_writable "(" S_mus_header_writable " header-type sample-type) returns " PROC_TRUE " if the header can handle the sample type"
Xen_check_type(Xen_is_integer(head), head, 1, S_mus_header_writable, "a header type");
Xen_check_type(Xen_is_integer(data), data, 2, S_mus_header_writable, "a sample type");
return(C_bool_to_Xen_boolean(mus_header_writable((mus_header_t)Xen_integer_to_C_int(head), (mus_sample_t)Xen_integer_to_C_int(data))));
}
static Xen g_mus_header_raw_defaults(void)
{
#define H_mus_header_raw_defaults "(" S_mus_header_raw_defaults "): returns list '(srate chans sample-type) of current raw sound default attributes"
int srate, chans;
mus_sample_t sample_type;
mus_header_raw_defaults(&srate, &chans, &sample_type);
return(Xen_list_3(C_int_to_Xen_integer(srate),
C_int_to_Xen_integer(chans),
C_int_to_Xen_integer((int)sample_type)));
}
static Xen g_mus_header_set_raw_defaults(Xen lst)
{
Xen_check_type((Xen_is_list(lst)) && (Xen_list_length(lst) == 3), lst, 1, S_mus_header_raw_defaults, "a list: '(srate chans sample-type)");
Xen_check_type(Xen_is_integer(Xen_car(lst)), Xen_car(lst), 1, S_mus_header_raw_defaults, "an integer = srate");
Xen_check_type(Xen_is_integer(Xen_cadr(lst)), Xen_cadr(lst), 2, S_mus_header_raw_defaults, "an integer = chans");
Xen_check_type(Xen_is_integer(Xen_caddr(lst)), Xen_caddr(lst), 3, S_mus_header_raw_defaults, "an integer = sample-type");
mus_header_set_raw_defaults(Xen_integer_to_C_int(Xen_car(lst)),
Xen_integer_to_C_int(Xen_cadr(lst)),
(mus_sample_t)Xen_integer_to_C_int(Xen_caddr(lst)));
return(lst);
}
static Xen g_mus_header_type_name(Xen type)
{
#define H_mus_header_type_name "(" S_mus_header_type_name " type): header type (e.g. " S_mus_aiff ") as a string"
Xen_check_type(Xen_is_integer(type), type, 1, S_mus_header_type_name, "an integer (header-type id)");
return(C_string_to_Xen_string(mus_header_type_name((mus_header_t)Xen_integer_to_C_int(type))));
}
static Xen g_mus_header_type_to_string(Xen type)
{
#define H_mus_header_type_to_string "(" S_mus_header_type_to_string " type): header type (e.g. " S_mus_aiff ") as a string"
Xen_check_type(Xen_is_integer(type), type, 1, S_mus_header_type_to_string, "an integer (header-type id)");
return(C_string_to_Xen_string(mus_header_type_to_string((mus_header_t)Xen_integer_to_C_int(type))));
}
static Xen g_mus_sample_type_name(Xen samp_type)
{
#define H_mus_sample_type_name "(" S_mus_sample_type_name " samp_type): sample type (e.g. " S_mus_bshort ") as a string"
Xen_check_type(Xen_is_integer(samp_type), samp_type, 1, S_mus_sample_type_name, "an integer (sample-type id)");
return(C_string_to_Xen_string(mus_sample_type_name((mus_sample_t)Xen_integer_to_C_int(samp_type))));
}
static Xen g_mus_sample_type_to_string(Xen samp_type)
{
#define H_mus_sample_type_to_string "(" S_mus_sample_type_to_string " samp_type): sample type (e.g. " S_mus_bshort ") as a string"
Xen_check_type(Xen_is_integer(samp_type), samp_type, 1, S_mus_sample_type_to_string, "an integer (sample-type id)");
return(C_string_to_Xen_string(mus_sample_type_to_string((mus_sample_t)Xen_integer_to_C_int(samp_type))));
}
static Xen g_mus_bytes_per_sample(Xen samp_type)
{
#define H_mus_bytes_per_sample "(" S_mus_bytes_per_sample " sample-type): number of bytes per sample in \
sample-type (e.g. " S_mus_bshort " = 2)"
Xen_check_type(Xen_is_integer(samp_type), samp_type, 1, S_mus_bytes_per_sample, "an integer (sample-type id)");
return(C_int_to_Xen_integer(mus_bytes_per_sample((mus_sample_t)Xen_integer_to_C_int(samp_type))));
}
static Xen g_mus_sound_duration(Xen gfilename)
{
#define H_mus_sound_duration "(" S_mus_sound_duration " filename): duration (in seconds) of sound file"
float res;
char *str = NULL;
Xen_check_type(Xen_is_string(gfilename), gfilename, 1, S_mus_sound_duration, "a string");
res = mus_sound_duration(str = mus_expand_filename(Xen_string_to_C_string(gfilename)));
if (str) free(str);
return(C_double_to_Xen_real(res));
}
static Xen g_mus_oss_set_buffers(Xen num, Xen size)
{
#define H_mus_oss_set_buffers "(" S_mus_oss_set_buffers " num size): set Linux OSS 'fragment' number and size. \
If Snd's controls seem sluggish, try (" S_mus_oss_set_buffers " 4 12) or even (" S_mus_oss_set_buffers " 2 12). \
This reduces the on-card buffering, but may introduce clicks."
#if (HAVE_OSS || HAVE_ALSA)
Xen_check_type(Xen_is_integer(num), num, 1, S_mus_oss_set_buffers, "an integer");
Xen_check_type(Xen_is_integer(size), size, 2, S_mus_oss_set_buffers, "an integer");
mus_oss_set_buffers(Xen_integer_to_C_int(num),
Xen_integer_to_C_int(size));
#endif
return(Xen_false);
}
static Xen g_mus_alsa_buffers(void)
{
#define H_mus_alsa_buffers "(" S_mus_alsa_buffers "): current number of ALSA periods."
#if HAVE_ALSA
return(C_int_to_Xen_integer(mus_alsa_buffers()));
#endif
return(Xen_false);
}
static Xen g_mus_alsa_set_buffers(Xen val)
{
Xen_check_type(Xen_is_integer(val), val, 1, S_set S_mus_alsa_buffers, "an integer");
#if HAVE_ALSA
return(C_int_to_Xen_integer(mus_alsa_set_buffers(Xen_integer_to_C_int(val))));
#endif
return(Xen_false);
}
static Xen g_mus_alsa_buffer_size(void)
{
#define H_mus_alsa_buffer_size "(" S_mus_alsa_buffer_size "): current size of ALSA buffers."
#if HAVE_ALSA
return(C_int_to_Xen_integer(mus_alsa_buffer_size()));
#endif
return(Xen_false);
}
static Xen g_mus_alsa_set_buffer_size(Xen val)
{
Xen_check_type(Xen_is_integer(val), val, 1, S_set S_mus_alsa_buffer_size, "an integer");
#if HAVE_ALSA
return(C_int_to_Xen_integer(mus_alsa_set_buffer_size(Xen_integer_to_C_int(val))));
#endif
return(Xen_false);
}
static Xen g_mus_alsa_device(void)
{
#define H_mus_alsa_device "(" S_mus_alsa_device "): current ALSA device."
#if HAVE_ALSA
return(C_string_to_Xen_string(mus_alsa_device()));
#endif
return(Xen_false);
}
static Xen g_mus_alsa_set_device(Xen val)
{
Xen_check_type(Xen_is_string(val), val, 1, S_set S_mus_alsa_device, "a string (ALSA device name)");
#if HAVE_ALSA
return(C_string_to_Xen_string(mus_alsa_set_device(Xen_string_to_C_string(val))));
#endif
return(Xen_false);
}
static Xen g_mus_alsa_playback_device(void)
{
#define H_mus_alsa_playback_device "(" S_mus_alsa_playback_device "): current ALSA playback device."
#if HAVE_ALSA
return(C_string_to_Xen_string(mus_alsa_playback_device()));
#endif
return(Xen_false);
}
static Xen g_mus_alsa_set_playback_device(Xen val)
{
Xen_check_type(Xen_is_string(val), val, 1, S_set S_mus_alsa_playback_device, "a string (ALSA device name)");
#if HAVE_ALSA
return(C_string_to_Xen_string(mus_alsa_set_playback_device(Xen_string_to_C_string(val))));
#endif
return(Xen_false);
}
static Xen g_mus_alsa_capture_device(void)
{
#define H_mus_alsa_capture_device "(" S_mus_alsa_capture_device "): current ALSA capture device."
#if HAVE_ALSA
return(C_string_to_Xen_string(mus_alsa_capture_device()));
#endif
return(Xen_false);
}
static Xen g_mus_alsa_set_capture_device(Xen val)
{
Xen_check_type(Xen_is_string(val), val, 1, S_set S_mus_alsa_capture_device, "a string (ALSA device name)");
#if HAVE_ALSA
return(C_string_to_Xen_string(mus_alsa_set_capture_device(Xen_string_to_C_string(val))));
#endif
return(Xen_false);
}
static Xen g_mus_alsa_squelch_warning(void)
{
#define H_mus_alsa_squelch_warning "(" S_mus_alsa_squelch_warning "): whether to squelch ALSA srate mismatch warnings."
#if HAVE_ALSA
return(C_bool_to_Xen_boolean(mus_alsa_squelch_warning()));
#endif
return(Xen_false);
}
static Xen g_mus_alsa_set_squelch_warning(Xen val)
{
Xen_check_type(Xen_is_boolean(val), val, 1, S_set S_mus_alsa_squelch_warning, "a boolean");
#if HAVE_ALSA
return(C_bool_to_Xen_boolean(mus_alsa_set_squelch_warning(Xen_boolean_to_C_bool(val))));
#endif
return(Xen_false);
}
static Xen g_mus_sound_maxamp_exists(Xen file)
{
#define H_mus_sound_maxamp_exists "(" S_mus_sound_maxamp_exists " filename): " PROC_TRUE " if sound's maxamp data is available \
in the sound cache; if it isn't, a call on " S_mus_sound_maxamp " has to open and read the data to get the maxamp."
bool val;
char *str = NULL;
Xen_check_type(Xen_is_string(file), file, 1, S_mus_sound_maxamp_exists, "a string");
val = mus_sound_maxamp_exists(str = mus_expand_filename(Xen_string_to_C_string(file)));
if (str) free(str);
return(C_bool_to_Xen_boolean(val));
}
Xen g_mus_sound_maxamp(Xen file)
{
#define H_mus_sound_maxamp "(" S_mus_sound_maxamp " filename): maxamps in sound (a list of paired amps (floats) and locations (samples))"
int chans;
char *filename;
Xen res = Xen_empty_list;
Xen_check_type(Xen_is_string(file), file, 1, S_mus_sound_maxamp, "a string");
filename = mus_expand_filename(Xen_string_to_C_string(file));
chans = mus_sound_chans(filename);
if (chans > 0)
{
mus_long_t rtn;
mus_float_t *vals;
mus_long_t *times;
vals = (mus_float_t *)calloc(chans, sizeof(mus_float_t));
times = (mus_long_t *)calloc(chans, sizeof(mus_long_t));
rtn = mus_sound_maxamps(filename, chans, vals, times);
if (rtn != MUS_ERROR)
{
int i;
for (i = chans - 1; i >= 0; i--)
res = Xen_cons(C_llong_to_Xen_llong(times[i]), Xen_cons(C_double_to_Xen_real(vals[i]), res));
}
free(vals);
free(times);
if (filename) free(filename);
}
else
{
if (filename) free(filename);
Xen_error(BAD_HEADER,
Xen_list_1(C_string_to_Xen_string(S_mus_sound_maxamp ": chans <= 0")));
}
return(res);
}
static Xen g_mus_sound_set_maxamp(Xen file, Xen vals)
{
int chans;
char *filename;
Xen_check_type(Xen_is_string(file), file, 1, S_set S_mus_sound_maxamp, "a string");
Xen_check_type(Xen_is_list(vals), vals, 2, S_set S_mus_sound_maxamp, "a list");
filename = mus_expand_filename(Xen_string_to_C_string(file));
chans = mus_sound_chans(filename);
/* presumably any actual error here will be trapped via mus-error (raised in mus_header_read via read_sound_file_header),
* so chans <= 0 is actually in the header?
*/
if (chans > 0)
{
Xen lst;
int i, j, len;
mus_float_t *mvals;
mus_long_t *times;
len = Xen_list_length(vals);
if (len < (chans * 2))
Xen_wrong_type_arg_error(S_set S_mus_sound_maxamp, 2, vals, "max amp list length must = 2 * chans");
if (len > chans * 2) len = chans * 2;
mvals = (mus_float_t *)calloc(chans, sizeof(mus_float_t));
times = (mus_long_t *)calloc(chans, sizeof(mus_long_t));
for (i = 0, j = 0, lst = Xen_copy_arg(vals); i < len; i += 2, j++, lst = Xen_cddr(lst))
{
times[j] = Xen_llong_to_C_llong(Xen_car(lst));
mvals[j] = Xen_real_to_C_double(Xen_cadr(lst));
}
fprintf(stderr, "set in g_mus_sound_set_maxamp\n");
mus_sound_set_maxamps(filename, chans, mvals, times);
free(mvals);
free(times);
if (filename) free(filename);
}
else
{
if (filename) free(filename);
Xen_error(BAD_HEADER,
Xen_list_1(C_string_to_Xen_string(S_set S_mus_sound_maxamp ": chans <= 0")));
}
return(vals);
}
#define S_mus_sound_preload "mus-sound-preload"
static Xen g_mus_sound_preload(Xen file)
{
#define H_mus_sound_preload "(" S_mus_sound_preload " filename): save filename's data in memory (faster opens and so on)."
char *str;
Xen_check_type(Xen_is_string(file), file, 1, S_mus_sound_preload, "a string");
str = mus_expand_filename(Xen_string_to_C_string(file));
if (str)
{
int ifd;
ifd = mus_sound_open_input(str);
if (ifd != MUS_ERROR)
{
int i, chans;
mus_float_t **bufs;
mus_long_t framples;
chans = mus_sound_chans(str);
framples = mus_sound_framples(str) + 8; /* + 8 for readers that wander off the end */
bufs = (mus_float_t **)malloc(chans * sizeof(mus_float_t *));
for (i = 0; i < chans; i++)
bufs[i] = (mus_float_t *)malloc(framples * sizeof(mus_float_t));
mus_file_seek_frample(ifd, 0);
mus_file_read_file(ifd, 0, chans, framples, bufs);
mus_sound_set_saved_data(str, bufs);
mus_sound_close_input(ifd);
}
free(str);
}
return(file);
}
/* global default clipping values */
static Xen g_mus_clipping(void)
{
#define H_mus_clipping "(" S_mus_clipping "): whether sound data written to a file should be clipped"
return(C_bool_to_Xen_boolean(mus_clipping()));
}
static Xen g_mus_set_clipping(Xen clipped)
{
Xen_check_type(Xen_is_boolean(clipped), clipped, 1, S_set S_mus_clipping, "a boolean");
return(C_bool_to_Xen_boolean(mus_set_clipping(Xen_boolean_to_C_bool(clipped))));
}
/* file local clipping values */
static Xen g_mus_file_clipping(Xen fd)
{
#define H_mus_file_clipping "(" S_mus_file_clipping " fd): whether sound data written to file 'fd' should be clipped"
Xen_check_type(Xen_is_integer(fd), fd, 1, S_mus_file_clipping, "an integer");
return(C_bool_to_Xen_boolean(mus_file_clipping(Xen_integer_to_C_int(fd))));
}
static Xen g_mus_file_set_clipping(Xen fd, Xen clipped)
{
Xen_check_type(Xen_is_integer(fd), fd, 1, S_set S_mus_file_clipping, "an integer");
Xen_check_type(Xen_is_boolean(clipped), clipped, 2, S_set S_mus_file_clipping, "a boolean");
return(C_bool_to_Xen_boolean(mus_file_set_clipping(Xen_integer_to_C_int(fd), Xen_boolean_to_C_bool(clipped))));
}
Xen g_mus_expand_filename(Xen file)
{
#define H_mus_expand_filename "(" S_mus_expand_filename " name): expand 'name' into a canonical or absolute filename, that is, \
one in which all directories in the path are explicit."
char *str = NULL;
Xen result;
Xen_check_type(Xen_is_string(file), file, 1, S_mus_expand_filename, "a string");
str = mus_expand_filename(Xen_string_to_C_string(file));
result = C_string_to_Xen_string(str);
if (str) free(str);
return(result);
}
static Xen g_mus_sound_report_cache(Xen file)
{
#define H_mus_sound_report_cache "(" S_mus_sound_report_cache " (name)): print the current sound \
cache info to the file given or stdout"
const char *name;
if (!Xen_is_bound(file))
{
mus_sound_report_cache(stdout);
return(Xen_false);
}
Xen_check_type(Xen_is_string(file), file, 1, S_mus_sound_report_cache, "a string");
name = Xen_string_to_C_string(file);
if (name)
{
char *str = NULL;
str = mus_expand_filename(name);
if (str)
{
FILE *fd;
fd = FOPEN(str, "w");
free(str);
if (fd)
{
mus_sound_report_cache(fd);
FCLOSE(fd, name);
return(file);
}
}
}
Xen_error(Xen_make_error_type("cannot-save"),
Xen_list_3(C_string_to_Xen_string(S_mus_sound_report_cache ": ~S ~A"),
file,
C_string_to_Xen_string(STRERROR(errno))));
return(Xen_false);
}
static Xen g_mus_error_type_to_string(Xen err)
{
#define H_mus_error_type_to_string "(" S_mus_error_type_to_string " err): string description of err (a sndlib error type)"
Xen_check_type(Xen_is_integer(err), err, 1, S_mus_error_type_to_string, "an integer");
return(C_string_to_Xen_string((char *)mus_error_type_to_string(Xen_integer_to_C_int(err))));
}
static Xen g_array_to_file(Xen filename, Xen data, Xen len, Xen srate, Xen channels)
{
#define H_array_to_file "(" S_array_to_file " filename data len srate channels): write 'data', \
a " S_vct " of interleaved samples, to the sound file 'filename' set up to have the given \
srate and channels. 'len' samples are written."
/* this exists for compatibility with the Common Lisp version of CLM. Ideally, we'd get rid
* of it and provide vct<->file and sound-data<->file instead so that the channels aren't
* handled through interleaving. But that means extensive changes to the Lisp code...
*/
mus_long_t olen, samps;
vct *v;
Xen_check_type(Xen_is_string(filename), filename, 1, S_array_to_file, "a string");
Xen_check_type(mus_is_vct(data), data, 2, S_array_to_file, "a " S_vct);
Xen_check_type(Xen_is_llong(len), len, 3, S_array_to_file, "an integer");
Xen_check_type(Xen_is_integer(srate), srate, 4, S_array_to_file, "an integer");
Xen_check_type(Xen_is_integer(channels), channels, 5, S_array_to_file, "an integer");
v = Xen_to_vct(data);
samps = Xen_llong_to_C_llong(len);
if (samps <= 0)
Xen_out_of_range_error(S_array_to_file, 3, len, "samples <= 0?");
if (samps > mus_vct_length(v))
samps = mus_vct_length(v);
olen = mus_float_array_to_file(Xen_string_to_C_string(filename),
mus_vct_data(v),
samps,
Xen_integer_to_C_int(srate),
Xen_integer_to_C_int(channels));
return(C_llong_to_Xen_llong(olen));
}
static Xen g_file_to_array(Xen filename, Xen chan, Xen start, Xen samples, Xen data)
{
#define H_file_to_array "(" S_file_to_array " filename chan start samples data): read the sound file \
'filename' placing samples from channel 'chan' into the " S_vct " 'data' starting in the file \
at frample 'start' and reading 'samples' samples altogether."
int chn, chans;
mus_long_t samps;
vct *v;
const char *name = NULL;
Xen_check_type(Xen_is_string(filename), filename, 1, S_file_to_array, "a string");
Xen_check_type(Xen_is_integer(chan), chan, 2, S_file_to_array, "an integer");
Xen_check_type(Xen_is_llong(start), start, 3, S_file_to_array, "an integer");
Xen_check_type(Xen_is_llong(samples), samples, 4, S_file_to_array, "an integer");
Xen_check_type((mus_is_vct(data)), data, 5, S_file_to_array, "a " S_vct);
name = Xen_string_to_C_string(filename);
if (!(mus_file_probe(name)))
Xen_error(NO_SUCH_FILE,
Xen_list_3(C_string_to_Xen_string(S_file_to_array ": ~S ~A"),
filename,
C_string_to_Xen_string(STRERROR(errno))));
v = Xen_to_vct(data);
samps = Xen_llong_to_C_llong(samples);
if (samps <= 0)
Xen_out_of_range_error(S_file_to_array, 4, samples, "samples <= 0?");
if (samps > mus_vct_length(v))
samps = mus_vct_length(v);
chn = Xen_integer_to_C_int(chan);
chans = mus_sound_chans(name);
if ((chn < 0) || (chn > chans))
Xen_error(NO_SUCH_CHANNEL,
Xen_list_4(C_string_to_Xen_string(S_file_to_array ": invalid chan: ~A, ~S has ~A chans"),
chan,
filename,
C_int_to_Xen_integer(chans)));
if (chans <= 0)
Xen_error(BAD_HEADER,
Xen_list_2(C_string_to_Xen_string(S_file_to_array ": ~S chans <= 0"),
filename));
mus_file_to_float_array(name, chn, Xen_llong_to_C_llong(start), samps, mus_vct_data(v));
return(data);
}
static Xen new_sound_hook;
static void g_new_sound_hook(const char *filename)
{
if (Xen_hook_has_list(new_sound_hook))
{
#if HAVE_SCHEME
s7_call(s7, new_sound_hook, s7_cons(s7, C_string_to_Xen_string(filename), Xen_empty_list));
#else
Xen procs, fname;
fname = C_string_to_Xen_string(filename);
procs = Xen_hook_list(new_sound_hook);
while (!Xen_is_null(procs))
{
Xen_call_with_1_arg(Xen_car(procs), fname, S_new_sound_hook);
procs = Xen_cdr(procs);
}
#endif
}
}
static Xen sound_path;
Xen g_mus_sound_path(void)
{
#define H_mus_sound_path "(" S_mus_sound_path "): a list of directories to search for sound files."
return(sound_path);
}
#if HAVE_SCHEME
static int sound_path_loc = -1;
static s7_pointer mus_sound_path_symbol;
#endif
static Xen g_mus_set_sound_path(Xen val)
{
Xen_check_type(Xen_is_list(val), val, 1, S_set S_mus_sound_path, "a list");
#if HAVE_SCHEME
if (sound_path_loc != -1)
s7_gc_unprotect_at(s7, sound_path_loc);
sound_path = val;
sound_path_loc = s7_gc_protect(s7, sound_path);
s7_symbol_set_value(s7, mus_sound_path_symbol, val);
#else
if (sound_path != Xen_empty_list)
Xen_GC_unprotect(sound_path);
Xen_GC_protect(val);
sound_path = val;
#endif
return(val);
}
static Xen g_mus_max_malloc(void)
{
#define H_mus_max_malloc "(" S_mus_max_malloc "): maximum number of bytes we will try to malloc."
return(C_llong_to_Xen_llong(mus_max_malloc()));
}
#if HAVE_SCHEME
static s7_pointer mus_max_malloc_symbol;
#endif
static Xen g_mus_set_max_malloc(Xen val)
{
mus_long_t size;
Xen_check_type(Xen_is_llong(val), val, 1, S_set S_mus_max_malloc, "an integer");
size = Xen_llong_to_C_llong(val);
#if HAVE_SCHEME
s7_symbol_set_value(s7, mus_max_malloc_symbol, s7_make_integer(s7, size));
#endif
return(C_llong_to_Xen_llong(mus_set_max_malloc(size)));
}
static Xen g_mus_max_table_size(void)
{
#define H_mus_max_table_size "(" S_mus_max_table_size "): maximum table size."
return(C_llong_to_Xen_llong(mus_max_table_size()));
}
#if HAVE_SCHEME
static s7_pointer mus_max_table_size_symbol;
#endif
static Xen g_mus_set_max_table_size(Xen val)
{
mus_long_t size;
Xen_check_type(Xen_is_llong(val), val, 1, S_set S_mus_max_table_size, "an integer");
size = Xen_llong_to_C_llong(val);
#if HAVE_SCHEME
s7_symbol_set_value(s7, mus_max_table_size_symbol, s7_make_integer(s7, size));
#endif
return(C_llong_to_Xen_llong(mus_set_max_table_size(size)));
}
#if __APPLE__
#define S_mus_audio_output_properties_mutable "mus-audio-output-properties-mutable"