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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 SOUND_DECODE_LENGTH 16
#define NUM_CHANNELS 8
#define SOUND_BUFFER_SIZE (2 * 44100 / 50)
#define MAX_BUFFER_SIZE SOUND_BUFFER_SIZE
#define SOUND_BUFS 4
typedef struct
{
int32_t playback_rate;
int32_t noise_gen;
uint32_t freqbase; /* notaz */
bool mute_sound;
} SoundStatus;
extern SoundStatus so;
typedef struct
{
int32_t state;
int32_t type;
int16_t volume_left;
int16_t volume_right;
uint32_t hertz;
uint32_t frequency;
uint32_t count;
bool loop;
int32_t envx;
int16_t left_vol_level;
int16_t right_vol_level;
int16_t envx_target;
uint32_t env_error;
uint32_t erate;
int32_t 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* block;
uint16_t sample_number;
bool last_block;
bool needs_decode;
uint32_t block_pointer;
uint32_t sample_pointer;
int32_t* echo_buf_ptr;
int32_t mode;
int32_t envxx;
int16_t next_sample;
int32_t interpolate;
int32_t previous [2];
uint8_t env_ind_attack;
uint8_t env_ind_decay;
uint8_t env_ind_sustain;
} Channel;
typedef struct
{
int32_t echo_enable;
int32_t echo_feedback; /* range is -128 .. 127 */
int32_t echo_ptr;
int32_t echo_buffer_size;
int32_t echo_write_enabled;
int32_t pitch_mod;
Channel channels [NUM_CHANNELS];
int16_t master_volume [2]; /* range is -128 .. 127 */
int16_t echo_volume [2]; /* range is -128 .. 127 */
int32_t noise_hertz;
} SSoundData;
extern SSoundData SoundData;
void S9xSetSoundVolume(int32_t channel, int16_t volume_left, int16_t volume_right);
void S9xSetSoundFrequency(int32_t channel, int32_t hertz);
void S9xSetSoundHertz(int32_t channel, int32_t hertz);
void S9xSetSoundType(int32_t channel, int32_t 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 S9xSetEnvelopeHeight(int32_t channel, int32_t height);
void S9xSetSoundADSR(int32_t channel, int32_t attack, int32_t decay, int32_t sustain, int32_t sustain_level, int32_t release);
void S9xSetSoundKeyOff(int32_t channel);
void S9xSetSoundDecayMode(int32_t channel);
void S9xSetSoundAttachMode(int32_t channel);
void S9xSoundStartEnvelope(Channel*);
void S9xSetEchoFeedback(int32_t echo_feedback);
void S9xSetEchoEnable(uint8_t byte);
void S9xSetEchoDelay(int32_t byte);
void S9xSetEchoWriteEnable(uint8_t byte);
void S9xSetFilterCoefficient(int32_t tap, int32_t value);
void S9xSetFrequencyModulationEnable(uint8_t byte);
void S9xSetEnvelopeRate(int32_t channel, uint32_t rate, int32_t direction, int32_t target, uint32_t mode);
bool S9xSetSoundMode(int32_t channel, int32_t mode);
void S9xResetSound(bool full);
void S9xFixSoundAfterSnapshotLoad();
void S9xPlaybackSoundSetting(int32_t channel);
void S9xPlaySample(int32_t channel);
void S9xFixEnvelope(int32_t channel, uint8_t gain, uint8_t adsr1, uint8_t adsr2);
void S9xStartSample(int32_t channel);
void S9xMixSamples(int16_t* buffer, int32_t sample_count);
void S9xMixSamplesLowPass(int16_t* buffer, int32_t sample_count, int32_t low_pass_range);
void S9xSetPlaybackRate(uint32_t rate);
#endif
#endif
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