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/* Internal Audio API.
*
* Copyright (C) 2016 Reece H. Dunn
*
* This file is part of pcaudiolib.
*
* pcaudiolib is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* pcaudiolib 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with pcaudiolib. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PCAUDIOLIB_AUDIO_PRIV_H
#define PCAUDIOLIB_AUDIO_PRIV_H
#include <pcaudiolib/audio.h>
#include <stddef.h>
#ifdef __cplusplus
extern "C"
{
#endif
struct audio_object
{
int (*open)(struct audio_object *object,
enum audio_object_format format,
uint32_t rate,
uint8_t channels);
void (*close)(struct audio_object *object);
void (*destroy)(struct audio_object *object);
int (*write)(struct audio_object *object,
const void *data,
size_t bytes);
int (*drain)(struct audio_object *object);
int (*flush)(struct audio_object *object);
const char * (*strerror)(struct audio_object *object,
int error);
};
#if defined(_WIN32) || defined(_WIN64)
#include <windows.h>
#define container_of(ptr, type, member) ((type *)( (char *)ptr - offsetof(type,member) ))
LPWSTR
str2wcs(const char *str);
HRESULT
CreateWaveFormat(enum audio_object_format format,
uint32_t rate,
uint8_t channels,
WAVEFORMATEX **wfmt);
const char *
windows_hresult_strerror(struct audio_object *object,
int error);
struct audio_object *
create_xaudio2_object(const char *device,
const char *application_name,
const char *description);
#else
#define container_of(ptr, type, member) ({ \
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
(type *)( (char *)__mptr - offsetof(type,member) );})
struct audio_object *
create_pulseaudio_object(const char *device,
const char *application_name,
const char *description);
struct audio_object *
create_alsa_object(const char *device,
const char *application_name,
const char *description);
struct audio_object *
create_qsa_object(const char *device,
const char *application_name,
const char *description);
struct audio_object *
create_oss_object(const char *device,
const char *application_name,
const char *description);
#endif
#ifdef __cplusplus
}
#endif
#endif
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