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#include "../copyright"
#ifndef USE_BLARGG_APU
#ifndef _SOUND_H_
#define _SOUND_H_
enum { SOUND_SAMPLE = 0, SOUND_NOISE, SOUND_EXTRA_NOISE, SOUND_MUTE };
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 MAX_ENVELOPE_HEIGHT 127
#define ENVELOPE_SHIFT 7
#define MAX_VOLUME 127
#define VOLUME_SHIFT 7
#define VOL_DIV 128
#define SOUND_DECODE_LENGTH 16
#define NUM_CHANNELS 8
#define SOUND_BUFFER_SIZE (1024 * 16)
#define MAX_BUFFER_SIZE SOUND_BUFFER_SIZE
#define SOUND_BUFFER_SIZE_MASK (SOUND_BUFFER_SIZE - 1)
#define SOUND_BUFS 4
typedef struct
{
int sound_fd;
int sound_switch;
int playback_rate;
int buffer_size;
bool encoded;
int32_t samples_mixed_so_far;
int32_t play_position;
uint32_t err_counter;
uint32_t err_rate;
} SoundStatus;
SoundStatus so;
typedef struct
{
int state;
int type;
int16_t volume_left;
int16_t volume_right;
uint32_t hertz;
uint32_t frequency;
uint32_t count;
bool loop;
int envx;
int16_t left_vol_level;
int16_t right_vol_level;
int16_t envx_target;
uint32_t env_error;
uint32_t erate;
int direction;
uint32_t attack_rate;
uint32_t decay_rate;
uint32_t sustain_rate;
uint32_t release_rate;
uint32_t sustain_level;
int16_t sample;
int16_t decoded [16];
int16_t previous16 [2];
int16_t* block;
uint16_t sample_number;
bool last_block;
bool needs_decode;
uint32_t block_pointer;
uint32_t sample_pointer;
int* echo_buf_ptr;
int mode;
int32_t envxx;
int16_t next_sample;
int32_t interpolate;
int32_t previous [2];
// Just incase they are needed in the future, for snapshot compatibility.
uint32_t dummy [8];
} Channel;
typedef struct
{
int echo_enable;
int echo_feedback; /* range is -128 .. 127 */
int echo_ptr;
int echo_buffer_size;
int echo_write_enabled;
int echo_channel_enable;
int pitch_mod;
// Just incase they are needed in the future, for snapshot compatibility.
uint32_t dummy [3];
Channel channels [NUM_CHANNELS];
int16_t master_volume [2]; /* range is -128 .. 127 */
int16_t echo_volume [2]; /* range is -128 .. 127 */
int noise_hertz;
} SSoundData;
SSoundData SoundData;
void S9xSetEightBitConsoleSound(bool Enabled);
void S9xSetSoundVolume(int channel, int16_t volume_left, int16_t volume_right);
void S9xSetSoundFrequency(int channel, int hertz);
void S9xSetSoundHertz(int channel, int hertz);
void S9xSetSoundType(int channel, int type_of_sound);
void S9xSetMasterVolume(int16_t master_volume_left, int16_t master_volume_right);
void S9xSetEchoVolume(int16_t echo_volume_left, int16_t echo_volume_right);
void S9xSetSoundControl(int sound_switch);
void S9xSetEnvelopeHeight(int channel, int height);
void S9xSetSoundADSR(int channel, int attack, int decay, int sustain,
int sustain_level, int release);
void S9xSetSoundKeyOff(int channel);
void S9xSetSoundDecayMode(int channel);
void S9xSetSoundAttachMode(int channel);
void S9xSoundStartEnvelope(Channel*);
void S9xSetSoundSample(int channel, uint16_t sample_number);
void S9xSetEchoFeedback(int echo_feedback);
void S9xSetEchoEnable(uint8_t byte);
void S9xSetEchoDelay(int byte);
void S9xSetEchoWriteEnable(uint8_t byte);
void S9xSetFilterCoefficient(int tap, int value);
void S9xSetFrequencyModulationEnable(uint8_t byte);
void S9xSetEnvelopeRate(int channel, uint32_t rate, int direction,
int target);
bool S9xSetSoundMode(int channel, int mode);
int S9xGetEnvelopeHeight(int channel);
void S9xResetSound(bool full);
void S9xFixSoundAfterSnapshotLoad();
void S9xPlaybackSoundSetting(int channel);
void S9xPlaySample(int channel);
void S9xFixEnvelope(int channel, uint8_t gain, uint8_t adsr1, uint8_t adsr2);
void S9xStartSample(int channel);
void S9xMixSamples(uint8_t* buffer, int sample_count);
void S9xMixSamplesO(uint8_t* buffer, int sample_count, int byte_offset);
bool S9xOpenSoundDevice(int, bool, int);
void S9xSetPlaybackRate(uint32_t rate);
#endif
#endif
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