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snes9xgx/source/snes9x/soundux.h
dborth 65984b9102 [What Was New 004 - August 5, 2008] 
- added: option to disable AA filtering 
         (snes graphics 'crisper', AA now default OFF)
- added: mapped zooming and turbo mode to classic controller
- added: preliminary usb support (loading)
- changed: sram and freezes now saved by filename, not internal romname. 
           If you have multiple versions of the same game, you can now have 
           srams and freezes for each version. A prompt to convert to the 
           new naming is provided for sram only.
- changed: by default, autoload/save sram and freeze enabled
2008-10-16 01:52:18 +00:00

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/**********************************************************************************
Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
(c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com) and
Jerremy Koot (jkoot@snes9x.com)
(c) Copyright 2002 - 2004 Matthew Kendora
(c) Copyright 2002 - 2005 Peter Bortas (peter@bortas.org)
(c) Copyright 2004 - 2005 Joel Yliluoma (http://iki.fi/bisqwit/)
(c) Copyright 2001 - 2006 John Weidman (jweidman@slip.net)
(c) Copyright 2002 - 2006 Brad Jorsch (anomie@users.sourceforge.net),
funkyass (funkyass@spam.shaw.ca),
Kris Bleakley (codeviolation@hotmail.com),
Nach (n-a-c-h@users.sourceforge.net), and
zones (kasumitokoduck@yahoo.com)
BS-X C emulator code
(c) Copyright 2005 - 2006 Dreamer Nom,
zones
C4 x86 assembler and some C emulation code
(c) Copyright 2000 - 2003 _Demo_ (_demo_@zsnes.com),
Nach,
zsKnight (zsknight@zsnes.com)
C4 C++ code
(c) Copyright 2003 - 2006 Brad Jorsch,
Nach
DSP-1 emulator code
(c) Copyright 1998 - 2006 _Demo_,
Andreas Naive (andreasnaive@gmail.com)
Gary Henderson,
Ivar (ivar@snes9x.com),
John Weidman,
Kris Bleakley,
Matthew Kendora,
Nach,
neviksti (neviksti@hotmail.com)
DSP-2 emulator code
(c) Copyright 2003 John Weidman,
Kris Bleakley,
Lord Nightmare (lord_nightmare@users.sourceforge.net),
Matthew Kendora,
neviksti
DSP-3 emulator code
(c) Copyright 2003 - 2006 John Weidman,
Kris Bleakley,
Lancer,
z80 gaiden
DSP-4 emulator code
(c) Copyright 2004 - 2006 Dreamer Nom,
John Weidman,
Kris Bleakley,
Nach,
z80 gaiden
OBC1 emulator code
(c) Copyright 2001 - 2004 zsKnight,
pagefault (pagefault@zsnes.com),
Kris Bleakley,
Ported from x86 assembler to C by sanmaiwashi
SPC7110 and RTC C++ emulator code
(c) Copyright 2002 Matthew Kendora with research by
zsKnight,
John Weidman,
Dark Force
S-DD1 C emulator code
(c) Copyright 2003 Brad Jorsch with research by
Andreas Naive,
John Weidman
S-RTC C emulator code
(c) Copyright 2001-2006 byuu,
John Weidman
ST010 C++ emulator code
(c) Copyright 2003 Feather,
John Weidman,
Kris Bleakley,
Matthew Kendora
Super FX x86 assembler emulator code
(c) Copyright 1998 - 2003 _Demo_,
pagefault,
zsKnight,
Super FX C emulator code
(c) Copyright 1997 - 1999 Ivar,
Gary Henderson,
John Weidman
Sound DSP emulator code is derived from SNEeSe and OpenSPC:
(c) Copyright 1998 - 2003 Brad Martin
(c) Copyright 1998 - 2006 Charles Bilyue'
SH assembler code partly based on x86 assembler code
(c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
2xSaI filter
(c) Copyright 1999 - 2001 Derek Liauw Kie Fa
HQ2x filter
(c) Copyright 2003 Maxim Stepin (maxim@hiend3d.com)
Specific ports contains the works of other authors. See headers in
individual files.
Snes9x homepage: http://www.snes9x.com
Permission to use, copy, modify and/or distribute Snes9x in both binary
and source form, for non-commercial purposes, is hereby granted without
fee, providing that this license information and copyright notice appear
with all copies and any derived work.
This software is provided 'as-is', without any express or implied
warranty. In no event shall the authors be held liable for any damages
arising from the use of this software or it's derivatives.
Snes9x is freeware for PERSONAL USE only. Commercial users should
seek permission of the copyright holders first. Commercial use includes,
but is not limited to, charging money for Snes9x or software derived from
Snes9x, including Snes9x or derivatives in commercial game bundles, and/or
using Snes9x as a promotion for your commercial product.
The copyright holders request that bug fixes and improvements to the code
should be forwarded to them so everyone can benefit from the modifications
in future versions.
Super NES and Super Nintendo Entertainment System are trademarks of
Nintendo Co., Limited and its subsidiary companies.
**********************************************************************************/
#ifndef _SOUND_H_
#define _SOUND_H_
enum
{
SOUND_SAMPLE = 0,
SOUND_NOISE
};
enum
{
SOUND_SILENT,
SOUND_ATTACK,
SOUND_DECAY,
SOUND_SUSTAIN,
SOUND_RELEASE,
SOUND_GAIN,
SOUND_INCREASE_LINEAR,
SOUND_INCREASE_BENT_LINE,
SOUND_DECREASE_LINEAR,
SOUND_DECREASE_EXPONENTIAL
};
enum
{
MODE_NONE = SOUND_SILENT,
MODE_ADSR,
MODE_RELEASE = SOUND_RELEASE,
MODE_GAIN,
MODE_INCREASE_LINEAR,
MODE_INCREASE_BENT_LINE,
MODE_DECREASE_LINEAR,
MODE_DECREASE_EXPONENTIAL
};
#define NUM_CHANNELS 8
#define SOUND_DECODE_LENGTH 16
#define SOUND_BUFFER_SIZE (1024 * 16)
#define MAX_BUFFER_SIZE SOUND_BUFFER_SIZE
#define SOUND_BUFFER_SIZE_MASK (SOUND_BUFFER_SIZE - 1)
#define ENV_RANGE 0x800
#define ENV_MAX 0x7FF
#define ENV_SHIFT 4
#ifdef __sgi
#include <audio.h>
#endif /* __sgi */
typedef struct {
int sound_fd; // ** port specific
int sound_switch; // channel on/off
int playback_rate; // 32000Hz is recommended
int buffer_size; // ** port specific
int noise_gen; // ** unused
bool8 mute_sound; // mute
int stereo; // stereo or mono
bool8 sixteen_bit; // 16bit or 8bit sample
bool8 encoded; // ** port specific
#ifdef __sun
int last_eof; // ** port specific
#endif
#ifdef __sgi
ALport al_port; // ** port specific
#endif /* __sgi */
int32 samples_mixed_so_far; // ** port specific
int32 play_position; // ** port specific
uint32 err_counter; // ** port specific
uint32 err_rate; // ** port specific
uint16 stereo_switch; // stereo channel on/off
double pitch_mul; // used with Settings.FixFrequency
} SoundStatus;
EXTERN_C volatile SoundStatus so;
typedef struct {
int32 state; // ADSR/GAIN/RELEASE/SILENT
int32 type; // sample or noise
short volume_left; // VOL(L)
short volume_right; // VOL(R)
uint32 hertz; // ((P(H) << 8) + P(L)) * 8
uint32 frequency; // normalized pitch
uint32 count; // ** unused
bool8 loop; // loop flag in BRR header
int32 envx; // ** unused
short left_vol_level; // ** unused
short right_vol_level; // ** unused
short envx_target; // ** unused
uint32 env_error; // ** unused
uint32 erate; // ** unused
int32 direction; // ** unused
uint32 attack_rate; // ** unused
uint32 decay_rate; // ** unused
uint32 sustain_rate; // ** unused
uint32 release_rate; // ** unused
uint32 sustain_level; // ** unused
signed short sample; // signed 16 bit sample
signed short decoded[16]; // decoded 16 samples
signed short previous16[2];
signed short *block;
uint16 sample_number; // SRCN
bool8 last_block; // end flag in BRR header
bool8 needs_decode; // true when BRR block will be decoded
uint32 block_pointer; // currect block
uint32 sample_pointer; // pointer in a block
int32 *echo_buf_ptr; // EchoBuffer[] or DummyEchoBuffer[]
int32 mode; // ADSR/GAIN/RELEASE/SILENT
int32 envxx; // ** unused
signed short next_sample; // ** unused
int32 interpolate; // ** unused
int32 previous[2]; // last two nybbles for BRR decode
uint32 dummy[8]; // Just incase they are needed in the future,
// for snapshot compatibility.
int32 nb_index; // index of cached samples
int16 nb_sample[4]; // cached samples for interpolation
int16 out_sample; // OUTX << 4
int32 xenvx; // ENVX << 4
int32 xenvx_target; // ENVX target << 4
int32 xenv_count; // counter for envelope timing
int32 xenv_rate; // envelope timing from env_counter_table
int32 xsmp_count; // counter for pitch
int32 xattack_rate; // envelope timing from env_counter_table
int32 xdecay_rate; // envelope timing from env_counter_table
int32 xsustain_rate; // envelope timing from env_counter_table
int32 xsustain_level; // (128 / 8 * (SR + 1)) << 4
} Channel;
typedef struct
{
short master_volume_left; // MVOL(L)
short master_volume_right; // MVOL(R)
short echo_volume_left; // EVOL(L)
short echo_volume_right; // EVOL(R)
int32 echo_enable; // EON
int32 echo_feedback; // EFB
int32 echo_ptr; // index of Echo[]
int32 echo_buffer_size; // num of echo samples
int32 echo_write_enabled; // ECEN
int32 echo_channel_enable; // ** unused
int32 pitch_mod; // PMOD
uint32 dummy[3]; // Just incase they are needed in the future,
// for snapshot compatibility.
Channel channels[NUM_CHANNELS];
bool8 no_filter; // true when simple echo
int32 master_volume[2];
int32 echo_volume[2];
int32 noise_hertz; // ** unused
int32 noise_count; // counter for noise frequency
int32 noise_rate; // noise frequency from env_counter_table
} SSoundData;
EXTERN_C SSoundData SoundData;
void S9xSetEnvelopeRate (int channel, int32 rate_count, int32 xtarget);
void S9xSetSoundVolume (int channel, short volume_left, short volume_right);
void S9xSetMasterVolume (short volume_left, short volume_right);
void S9xSetEchoVolume (short volume_left, short volume_right);
void S9xSetEchoEnable (uint8 byte);
void S9xSetEchoFeedback (int echo_feedback);
void S9xSetEchoDelay (unsigned int byte);
void S9xSetEchoWriteEnable (uint8 byte);
void S9xSetFrequencyModulationEnable (uint8 byte);
void S9xSetSoundKeyOff (int channel);
void S9xPrepareSoundForSnapshotSave (bool8 restore);
void S9xFixSoundAfterSnapshotLoad (int version);
void S9xSetFilterCoefficient (int tap, int value);
void S9xSetSoundADSR (int channel, int ar, int dr, int sr, int sl);
void S9xSetEnvelopeHeight (int channel, int32 xlevel);
uint8 S9xGetEnvelopeHeight (int channel);
void S9xSetSoundHertz (int channel, int hertz);
void S9xSetSoundType (int channel, int type_of_sound);
bool8 S9xSetSoundMute (bool8 mute);
void S9xResetSound (bool8 full);
void S9xSetPlaybackRate (uint32 playback_rate);
bool8 S9xSetSoundMode (int channel, int mode);
void S9xSetSoundControl (int sound_switch);
void S9xPlaySample (int channel);
void S9xFixEnvelope (int channel, uint8 gain, uint8 adsr1, uint8 adsr2);
bool8 S9xOpenSoundDevice (int mode, bool8 stereo, int buffer_size);
EXTERN_C void S9xMixSamples (uint8 *buffer, int sample_count);
EXTERN_C void S9xMixSamplesO (uint8 *buffer, int sample_count, int byte_offset);
#endif
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