activegs-ios/kegs/Src/sound.h

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2016-03-26 16:16:01 +00:00
/*
ActiveGS, Copyright 2004-2016 Olivier Goguel, https://github.com/ogoguel/ActiveGS
Based on Kegs, Copyright 2004 Kent Dickey, https://kegs.sourceforge.net
This code is covered by the GNU GPL licence
*/
#pragma once
#ifdef INCLUDE_RCSID_C
const char rcsid_sound_h[] = "@(#)$KmKId: sound.h,v 1.17 2003-11-21 15:15:57-05 kentd Exp $";
#endif
#if !defined(_WIN32) && !defined(__CYGWIN__) && !defined(DRIVER_ANDROID)
# include <sys/ipc.h>
# include <sys/shm.h>
#endif
#define SOUND_SHM_SAMP_SIZE (32*1024)
#define SAMPLE_SIZE 2
#define NUM_CHANNELS 2
#define SAMPLE_CHAN_SIZE (SAMPLE_SIZE * NUM_CHANNELS)
#define MAX_SND_BUF 65536
#define VAL_C030_RANGE (32768)
#define VAL_C030_BASE (-16384)
#ifdef _WIN32
#pragma pack(push,PRAGMA_PACK_SIZE)
#endif
STRUCT(Doc_reg) {
_ALIGNED(8) double dsamp_ev;
_ALIGNED(8) double dsamp_ev2;
_ALIGNED(8) double complete_dsamp;
int samps_left;
word32 cur_acc;
word32 cur_inc;
word32 cur_start;
word32 cur_end;
word32 cur_mask;
int size_bytes;
int event;
int running;
int has_irq_pending;
word32 freq;
word32 vol;
word32 waveptr;
word32 ctl;
word32 wavesize;
word32 last_samp_val;
} XCODE_PRAGMA_PACK;
/* prototypes for hardware specific snd_driver.c functions */
void x_snd_init(word32 *);
void x_snd_shutdown();
void x_snd_child_init();
int x_snd_send_audio(byte *ptr, int size);
word32* x_sound_allocate(int size);
#define MAX_C030_TIMES 18000
class s_sound : public serialized
{
public:
byte doc_ram[0x10000 + 16];
word32 doc_sound_ctl ;
word32 doc_saved_val ;
int g_doc_num_osc_en ;
_ALIGNED(8) double g_dcycs_per_doc_update ;
_ALIGNED(8) double g_dupd_per_dcyc ;
_ALIGNED(8) double g_drecip_osc_en_plus_2 ;
int g_doc_saved_ctl ;
int g_queued_samps ;
int g_queued_nonsamps ;
int g_num_osc_interrupting ;
int g_audio_enable;
Doc_reg g_doc_regs[32];
word32 doc_reg_e0 ;
int g_audio_rate ; // OG Preferred Audio Rate
_ALIGNED(8) double g_daudio_rate ;
_ALIGNED(8) double g_drecip_audio_rate ;
_ALIGNED(8) double g_dsamps_per_dcyc ;
_ALIGNED(8) double g_dcycs_per_samp ;
float g_fsamps_per_dcyc ;
int g_doc_vol ;
_ALIGNED(8) double g_last_sound_play_dsamp ;
float c030_fsamps[MAX_C030_TIMES + 1];
int g_num_c030_fsamps ;
int g_sound_shm_pos ;
int g_samp_buf[2*MAX_SND_BUF];
word32 zero_buf[SOUND_SHM_SAMP_SIZE];
_ALIGNED(8) double g_doc_dsamps_extra ;
word32 g_last_c030_vbl_count;
int g_c030_state ;
// TO CHECK!
int g_sound_play_depth ;
// sound_driver.c
int g_bytes_written ;
#define ZERO_BUF_SIZE 2048
word32 g_snd_zero_buf[ZERO_BUF_SIZE];
int g_zeroes_buffered ;
int g_zeroes_seen ;
int g_sound_paused ;
int g_childsnd_vbl ;
int g_childsnd_pos ;
s_sound()
{
INIT_SERIALIZED();
g_doc_num_osc_en = 1;
g_dcycs_per_doc_update = 1.0;
g_dupd_per_dcyc = 1.0;
g_drecip_osc_en_plus_2 = 1.0 / (double)(1 + 2);
g_audio_enable = -1;
doc_reg_e0 = 0xff;
g_audio_rate = 44100; // OG Preferred Audio Rate
g_doc_vol = 2;
}
DEFAULT_SERIALIZE_IN_OUT ;
} XCODE_PRAGMA_PACK;
#ifdef _WIN32
#pragma pack(pop)
#endif
extern s_sound g_sound;
extern void x_async_sound_init();
extern void x_async_snd_shutdown();
extern void x_preload_sounds();
// WAV SUPPORT
struct OASound
{
int m_BufferId;
int m_SourceId;
int frequency;
int depth;
int nbchannel;
int successfullyLoaded;
};
typedef struct
{
const char* filename;
// unsigned int ref;
OASound sound;
} system_sound;
extern system_sound g_system_sounds[];
typedef enum
{
SOUND_EJECTION=0,
SOUND_SPIN_UP_SEARCH_1,
SOUND_SPIN_UP_SEARCH_2,
SOUND_SKIP_SEARCH_1,
SOUND_SKIP_SEARCH_2,
SOUND_SKIP_SEARCH_3,
SOUND_SKIP_SEARCH_4,
SOUND_SKIP_SEARCH_5,
SOUND_NB
} enum_sound;
void play_sound(enum_sound hSound);
bool x_load_wav(const char* _Path, unsigned char** _outDataBuffer, unsigned int & _outFileSize, OASound & _sound);
OASound async_init_wav(const char* _file);
int async_release_wav(OASound* _pSound);
int async_stop_wav(OASound* _pSound);
int async_play_wav(OASound* _pSound, int _Loop, float _Attenuation, float _StartAt );