PerlinNoise::PerlinNoise(int _maxFreq, float _persistence, int _range, float xWidth, float yWidth, const vector<vec2>& centers, const vector<float>& radii)
{
srand(time(0));
for (int i = 0; i<_maxFreq; i++)
{
octaves.push_back(Octave(i, _persistence, _range, xWidth, yWidth, centers, radii));
}
}
PerlinNoise::PerlinNoise(int _maxFreq, float _persistence, int _range)
{
srand(time(0));
for (int i = 0; i<_maxFreq; i++)
{
octaves.push_back(Octave(i, _persistence, _range));
}
}
void Sound::prev()
{
if (_note != NOTE_FIRST)
_note = Note(_note - 1);
else if(_octave != OCTAVE_FIRST)
{
_octave = Octave(_octave - 1);
_note = NOTE_LAST;
}
}
void Sound::next()
{
if (_note != NOTE_LAST)
_note = Note(_note + 1);
else if(_octave != OCTAVE_LAST)
{
_octave = Octave(_octave + 1);
_note = NOTE_FIRST;
}
}
void PerlinNoise::generateLandmassNoise(int _maxFreq, float _persistence, int _range, float xWidth, float yWidth, float minY, vector<vector<Edge>>* partitions)
{
srand(time(0));
octaves.clear();
octaves.clear();
for (int i = 0; i < _maxFreq; i++)
{
octaves.push_back(Octave(i, _persistence, _range, xWidth, yWidth, minY, partitions));
}
}
void AudioProcess()
{
BYTE i;
SIGNED_WORD temp16;
if(Phase++&0x01)
{
//We are in the Odd Phase. Do Nothing
I2S0_TX0 = QueuedI2CSampleOut;
}
else
{
DAC0_WHOLE = QueuedDACSampleOut;
I2S0_TX0 = QueuedI2CSampleOut;
//We need to do an intermediate operation to get the ADC data.
//The 32-bit ADC0_RA reg is not sign extended to 32-bits. TO make the compiler happy
//we need to do a 16-bit signed read and then recast to q31_t
temp16 = ADC0_RA;
SampleIn = (q31_t)(temp16)<<8;
if(InhibitAudio == FALSE)
{
//See what the current Patch is and do the appropriate processing!
switch(CurrentPatch)
{
default:
break;
case PATCH_SINE_TEST:
SampleOut = ((q31_t)(Sine_15_0[q++]))<<8;
break;
case PATCH_PASS_THROUGH:
SampleOut = SampleIn;
break;
case PATCH_ALPHA:
SampleIn = SampleIn;
arm_biquad_cas_df1_32x64_q31(&MyAlphaIIR,&SampleIn,&SampleOut,1);
arm_scale_q31(&SampleOut,AlphaIIR_Norm,0,&SampleOut,1);
SampleIn=SampleOut;
PickupTranslator(&SampleIn,&SampleOut);
break;
case PATCH_BETA:
SampleIn = SampleIn;
arm_biquad_cas_df1_32x64_q31(&MyBetaIIR,&SampleIn,&SampleOut,1);
arm_scale_q31(&SampleOut,BetaIIR_Norm,0,&SampleOut,1);
SampleIn=SampleOut;
PickupTranslator(&SampleIn,&SampleOut);
break;
case PATCH_GAMMA:
arm_biquad_cas_df1_32x64_q31(&MyGammaIIR,&SampleIn,&SampleOut,1);
arm_scale_q31(&SampleOut,GammaIIR_Norm,0,&SampleOut,1);
overdrive(&SampleOut,&SampleOut);
arm_scale_q31(&SampleOut,((q31_t)(DriveLevel)<<26),1,&SampleOut,1);
overdrive(&SampleOut,&SampleOut);
break;
case PATCH_DELTA:
PickupTranslator(&SampleIn,&SampleOut);
Octave(&SampleOut,&SampleOut);
arm_biquad_cas_df1_32x64_q31(&MyBetaIIR,&SampleIn,&SampleIn,1);
arm_scale_q31(&SampleIn,BetaIIR_Norm,0,&SampleIn,1);
SampleOut += SampleIn>>1;
break;
}
}
else
{
SampleOut = SampleIn;
}
if(MuteActive == TRUE)
{
SampleOut = 0;
}
QueuedDACSampleOut = TranslateForDAC(SampleOut);
QueuedI2CSampleOut = TranslateForI2S(SampleOut);
//Start next Sample
ADC0_SC1A = DIFF_DIFFERENTIAL | 1;
}
