mirror of
https://github.com/libretro/smsplus-gx.git
synced 2025-03-02 14:05:28 +00:00
6f84b7fa5c
We broke save states along the way when we improperly switched variable types. The end result is also a lot of needless conversions between types. This commit should hopefully address that, and we fixed broken save states.
70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
/******************************************************************************
|
|
* Sega Master System / GameGear Emulator
|
|
* Copyright (C) 1998-2007 Charles MacDonald
|
|
*
|
|
* additionnal code by Eke-Eke (SMS Plus GX)
|
|
*
|
|
* This program 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 2 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU 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
|
|
*
|
|
* Sound emulation.
|
|
*
|
|
******************************************************************************/
|
|
|
|
#ifndef SOUND_H_
|
|
#define SOUND_H_
|
|
|
|
enum {
|
|
STREAM_PSG_L, /* PSG left channel */
|
|
STREAM_PSG_R, /* PSG right channel */
|
|
STREAM_FM_MO, /* YM2413 melody channel */
|
|
STREAM_FM_RO, /* YM2413 rhythm channel */
|
|
STREAM_MAX /* Total # of sound streams */
|
|
};
|
|
|
|
/* Sound emulation structure */
|
|
typedef struct
|
|
{
|
|
void (*mixer_callback)(int16_t **output, int32_t length);
|
|
int16_t *output[2];
|
|
int16_t *stream[STREAM_MAX];
|
|
int32_t fm_which;
|
|
int32_t enabled;
|
|
int32_t fps;
|
|
uint32_t buffer_size;
|
|
int32_t sample_count;
|
|
int32_t sample_rate;
|
|
int32_t done_so_far;
|
|
int32_t fm_clock;
|
|
int32_t psg_clock;
|
|
} snd_t;
|
|
|
|
|
|
/* Global data */
|
|
extern snd_t snd;
|
|
|
|
/* Function prototypes */
|
|
void psg_write(int32_t data);
|
|
void psg_stereo_w(int32_t data);
|
|
uint32_t fmunit_detect_r(void);
|
|
void fmunit_detect_w(uint32_t data);
|
|
void fmunit_write(uint32_t offset, uint8_t data);
|
|
uint32_t SMSPLUS_sound_init(void);
|
|
void SMSPLUS_sound_shutdown(void);
|
|
void SMSPLUS_sound_reset(void);
|
|
void SMSPLUS_sound_update(int32_t line);
|
|
void SMSPLUS_sound_mixer_callback(int16_t **output, int32_t length);
|
|
|
|
#endif /* SOUND_H_ */
|