mirror of
https://github.com/ekeeke/Genesis-Plus-GX.git
synced 2024-12-31 21:51:50 +01:00
88 lines
2.8 KiB
C
88 lines
2.8 KiB
C
/* Copyright (C) 2010-2017 The RetroArch team
|
|
*
|
|
* ---------------------------------------------------------------------------------------
|
|
* The following license statement only applies to this file (rwav.h).
|
|
* ---------------------------------------------------------------------------------------
|
|
*
|
|
* Permission is hereby granted, free of charge,
|
|
* to any person obtaining a copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation the rights to
|
|
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
|
|
* and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
|
|
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef __LIBRETRO_SDK_FORMAT_RWAV_H__
|
|
#define __LIBRETRO_SDK_FORMAT_RWAV_H__
|
|
|
|
#include <retro_common_api.h>
|
|
#include <stdint.h>
|
|
|
|
RETRO_BEGIN_DECLS
|
|
|
|
typedef struct
|
|
{
|
|
/* bits per sample */
|
|
int bitspersample;
|
|
|
|
/* number of channels */
|
|
int numchannels;
|
|
|
|
/* sample rate */
|
|
int samplerate;
|
|
|
|
/* number of *samples* */
|
|
size_t numsamples;
|
|
|
|
/* number of *bytes* in the pointer below, i.e. numsamples * numchannels * bitspersample/8 */
|
|
size_t subchunk2size;
|
|
|
|
/* PCM data */
|
|
const void* samples;
|
|
} rwav_t;
|
|
|
|
enum rwav_state
|
|
{
|
|
RWAV_ITERATE_ERROR = -1,
|
|
RWAV_ITERATE_MORE = 0,
|
|
RWAV_ITERATE_DONE = 1,
|
|
RWAV_ITERATE_BUF_SIZE = 4096
|
|
};
|
|
|
|
typedef struct rwav_iterator rwav_iterator_t;
|
|
|
|
/**
|
|
* Initializes the iterator to fill the out structure with data parsed from buf.
|
|
*/
|
|
void rwav_init(rwav_iterator_t* iter, rwav_t* out, const void* buf, size_t size);
|
|
|
|
/**
|
|
* Parses a piece of the data. Continue calling as long as it returns RWAV_ITERATE_MORE.
|
|
* Stop calling otherwise, and check for errors. If RWAV_ITERATE_DONE is returned,
|
|
* the rwav_t structure passed to rwav_init is ready to be used. The iterator does not
|
|
* have to be freed.
|
|
*/
|
|
enum rwav_state rwav_iterate(rwav_iterator_t *iter);
|
|
|
|
/**
|
|
* Loads the entire data in one go.
|
|
*/
|
|
enum rwav_state rwav_load(rwav_t* out, const void* buf, size_t size);
|
|
|
|
/**
|
|
* Frees parsed wave data.
|
|
*/
|
|
void rwav_free(rwav_t *rwav);
|
|
|
|
RETRO_END_DECLS
|
|
|
|
#endif
|