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#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#ifdef HAVE_FEATURES_H
#include <features.h>
#endif
#include <Eo.h>
#include "ecore_audio_private.h"
#include <math.h>
EAPI Eo_Op ECORE_AUDIO_OBJ_IN_TONE_BASE_ID = EO_NOOP;
#define MY_CLASS ECORE_AUDIO_OBJ_IN_TONE_CLASS
#define MY_CLASS_NAME "ecore_audio_obj_in_tone"
struct _Ecore_Audio_Tone
{
int freq;
int phase;
};
typedef struct _Ecore_Audio_Tone Ecore_Audio_Tone;
static void _read(Eo *eo_obj, void *_pd, va_list *list)
{
int i, remain;
Ecore_Audio_Tone *obj = _pd;
Ecore_Audio_Input *in_obj = eo_data_get(eo_obj, ECORE_AUDIO_OBJ_IN_CLASS);
void *data = va_arg(*list, void *);
int len = va_arg(*list, int);
int *ret = va_arg(*list, int *);
float *val = data;
remain = in_obj->length * in_obj->samplerate * 4 - obj->phase * 4;
if (remain > len)
remain = len;
for (i=0; i<remain/4; i++) {
val[i] = sin(2* M_PI * obj->freq * (obj->phase + i) / in_obj->samplerate);
}
obj->phase += i;
if (ret)
*ret = remain;
}
static void _seek(Eo *eo_obj, void *_pd, va_list *list)
{
int tmp;
Ecore_Audio_Tone *obj = _pd;
Ecore_Audio_Input *in_obj = eo_data_get(eo_obj, ECORE_AUDIO_OBJ_IN_CLASS);
double offs = va_arg(*list, double);
int mode = va_arg(*list, int);
double *ret = va_arg(*list, double *);
switch (mode) {
case SEEK_SET:
tmp = offs * in_obj->samplerate;
break;
case SEEK_CUR:
tmp = obj->phase + offs * in_obj->samplerate;
break;
case SEEK_END:
tmp = (in_obj->length + offs) * in_obj->samplerate;
break;
default:
goto err;
}
if ((tmp < 0) || (tmp > in_obj->length * in_obj->samplerate))
goto err;
obj->phase = tmp;
if (ret)
*ret = (double)obj->phase / in_obj->samplerate;
return;
err:
if (ret)
*ret = -1.0;
}
static void _length_set(Eo *eo_obj, void *_pd EINA_UNUSED, va_list *list)
{
Ecore_Audio_Input *in_obj = eo_data_get(eo_obj, ECORE_AUDIO_OBJ_IN_CLASS);
double length= va_arg(*list, double);
in_obj->length = length;
}
static void _data_set(Eo *eo_obj, void *_pd, va_list *list)
{
Ecore_Audio_Tone *obj = _pd;
const char *key = va_arg(*list, const char *);
const void *val = va_arg(*list, const void *);
eo_base_data_free_func func = va_arg(*list, eo_base_data_free_func);
if (!key) return;
if (!strcmp(key, ECORE_AUDIO_ATTR_TONE_FREQ)) {
obj->freq = *(int *)val;
} else {
eo_do_super(eo_obj, MY_CLASS, eo_base_data_set(key, val, func));
}
}
static void _data_get(Eo *eo_obj, void *_pd, va_list *list)
{
Ecore_Audio_Tone *obj = _pd;
const char *key = va_arg(*list, const char*);
void **ret = va_arg(*list, void **);
if (!strcmp(key, ECORE_AUDIO_ATTR_TONE_FREQ)) {
if (ret)
*(int *)ret = obj->freq;
} else {
eo_do_super(eo_obj, MY_CLASS, eo_base_data_get(key, ret));
}
}
static void _constructor(Eo *eo_obj, void *_pd, va_list *list EINA_UNUSED)
{
Ecore_Audio_Tone *obj = _pd;
Ecore_Audio_Input *in_obj = eo_data_get(eo_obj, ECORE_AUDIO_OBJ_IN_CLASS);
eo_do_super(eo_obj, MY_CLASS, eo_constructor());
in_obj->channels = 1;
in_obj->samplerate = 44100;
in_obj->length = 1;
in_obj->seekable = EINA_TRUE;
obj->freq = 1000;
}
static void _class_constructor(Eo_Class *klass)
{
const Eo_Op_Func_Description func_desc[] = {
/* Virtual functions of parent class implemented in this class */
EO_OP_FUNC(EO_BASE_ID(EO_BASE_SUB_ID_CONSTRUCTOR), _constructor),
//EO_OP_FUNC(EO_BASE_ID(EO_BASE_SUB_ID_DESTRUCTOR), _destructor),
EO_OP_FUNC(EO_BASE_ID(EO_BASE_SUB_ID_DATA_GET), _data_get),
EO_OP_FUNC(EO_BASE_ID(EO_BASE_SUB_ID_DATA_SET), _data_set),
EO_OP_FUNC(ECORE_AUDIO_OBJ_IN_ID(ECORE_AUDIO_OBJ_IN_SUB_ID_LENGTH_SET), _length_set),
EO_OP_FUNC(ECORE_AUDIO_OBJ_IN_ID(ECORE_AUDIO_OBJ_IN_SUB_ID_SEEK), _seek),
EO_OP_FUNC(ECORE_AUDIO_OBJ_IN_ID(ECORE_AUDIO_OBJ_IN_SUB_ID_READ_INTERNAL), _read),
EO_OP_FUNC_SENTINEL
};
eo_class_funcs_set(klass, func_desc);
}
static const Eo_Op_Description op_desc[] = {
EO_OP_DESCRIPTION_SENTINEL
};
static const Eo_Class_Description class_desc = {
EO_VERSION,
MY_CLASS_NAME,
EO_CLASS_TYPE_REGULAR,
EO_CLASS_DESCRIPTION_OPS(&ECORE_AUDIO_OBJ_IN_TONE_BASE_ID, op_desc, ECORE_AUDIO_OBJ_IN_TONE_SUB_ID_LAST),
NULL,
sizeof(Ecore_Audio_Tone),
_class_constructor,
NULL
};
EO_DEFINE_CLASS(ecore_audio_obj_in_tone_class_get, &class_desc, ECORE_AUDIO_OBJ_IN_CLASS, NULL);
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