static void plot_data_fft(SFSUI* ui) {
cairo_t* cr;
cr = cairo_create (ui->sf_dat);
rounded_rectangle (cr, SS_BORDER, SS_BORDER, SS_SIZE, SS_SIZE, SS_BORDER);
cairo_clip_preserve (cr);
const float persistence = robtk_dial_get_value(ui->screen);
float transp;
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
if (persistence > 0) {
cairo_set_source_rgba(cr, 0, 0, 0, .25 - .0025 * persistence);
transp = 0.05;
} else {
cairo_set_source_rgba(cr, 0, 0, 0, 1.0);
transp = .5;
}
cairo_fill(cr);
cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND);
cairo_set_line_width (cr, 1.0);
const float xmid = rintf(SS_BORDER + SS_SIZE *.5) + .5;
const float dnum = SS_SIZE / ui->log_base;
const float denom = ui->log_rate / (float)ui->fft_bins;
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
for (uint32_t i = 1; i < ui->fft_bins-1 ; ++i) {
if (ui->level[i] < 0) continue;
const float level = MAKEUP_GAIN + fftx_power_to_dB(ui->level[i]);
if (level < -80) continue;
const float y = rintf(SS_BORDER + SS_SIZE - dnum * fast_log10(1.0 + i * denom)) + .5;
const float y1 = rintf(SS_BORDER + SS_SIZE - dnum * fast_log10(1.0 + (i+1) * denom)) + .5;
const float pk = level > 0.0 ? 1.0 : (80 + level) / 80.0;
const float a_lr = ui->lr[i];
float clr[3];
hsl2rgb(clr, .70 - .72 * pk, .9, .3 + pk * .4);
cairo_set_source_rgba(cr, clr[0], clr[1], clr[2], transp + pk * .2);
cairo_set_line_width (cr, MAX(1.0, (y - y1)));
cairo_move_to(cr, xmid, y);
cairo_line_to(cr, SS_BORDER + SS_SIZE * a_lr, y);
cairo_stroke(cr);
}
cairo_destroy (cr);
}
void TrackEffects::populateAuxForTrack(AudioTrack* t)/*{{{*/
{
if (t && t->hasAuxSend())
{
AuxProxy *proxy = new AuxProxy(t);
int idx = 0;
QHash<qint64, AuxInfo>::const_iterator iter = t->auxSends()->constBegin();
while (iter != t->auxSends()->constEnd())
{
Track* at = song->findTrackByIdAndType(iter.key(), Track::AUDIO_AUX);
if(at)
{
//qDebug("Adding AUX to strip: Name: %s, tid: %lld, auxId: %lld", at->name().toUtf8().constData(), at->id(), iter.key());
DoubleLabel* al;
QLabel* nl;
Knob* ak = addAuxKnob(proxy, iter.key(), at->name(), &al, &nl);
proxy->auxIndexList[idx] = iter.key();
proxy->auxKnobList[iter.key()] = ak;
proxy->auxLabelList[iter.key()] = al;
proxy->auxNameLabelList[iter.key()] = nl;
ak->setId(idx);
al->setId(idx);
double val = fast_log10(t->auxSend(iter.key()))*20.0;
ak->setValue(val);
al->setValue(val);
++idx;
}
++iter;
}
m_proxy.insert(t->id(), proxy);
}
}/*}}}*/
void AbstractSlider::setMaxLogValue(double val)
{
if (_log) {
_maxValue = fast_log10(val) * 20.0f;
}
else
_maxValue = val;
}
void AbstractSlider::setMinLogValue(double val)
{
if (_log) {
if (val == 0.0f)
_minValue = -100;
else
_minValue = fast_log10(val) * 20.0f;
}
else
_minValue = val;
}
void FloatEntry::setValue(double val)
{
if (_log)
{
if (val == 0.0f)
_value = _minValue;
else
_value = fast_log10(val) * 20.0f;
}
else
_value = val;
updateValue();
}
static void process_audio(SFSUI* ui, const size_t n_elem, float const * const left, float const * const right) {
pthread_mutex_lock(&ui->fft_lock);
fftx_run(ui->fa, n_elem, left);
bool display = !fftx_run(ui->fb, n_elem, right);
if (display) {
assert (fftx_bins(ui->fa) == ui->fft_bins);
const float db_thresh = 1e-20;
for (uint32_t i = 1; i < ui->fft_bins-1; i++) {
if (ui->fa->power[i] < db_thresh && ui->fb->power[i] < db_thresh) {
ui->lr[i] = 0.5;
ui->level[i] = 0;
continue;
}
const float lv = MAX(ui->fa->power[i], ui->fb->power[i]);
#if 1
const float lr = .5 + .5 * (sqrtf(ui->fb->power[i]) - sqrtf(ui->fa->power[i])) / sqrtf(lv);
#else
//XXX TODO log-scale / deflection of fraction
//const float lr = .5 + .25 * fast_log10(ui->fb->power[i] / ui->fa->power[i]);
float lr;
if (ui->fb->power[i] < ui->fa->power[i]) {
lr = .5 + .5 * fast_log10(ui->fb->power[i] / ui->fa->power[i]);
} else {
lr = .5 - .5 * fast_log10(ui->fa->power[i] / ui->fb->power[i]);
}
#endif
ui->level[i] += .1 * (lv - ui->level[i]) + 1e-20;
ui->lr[i] += .1 * (lr - ui->lr[i]) + 1e-10;
}
queue_draw(ui->m0);
}
pthread_mutex_unlock(&ui->fft_lock);
}
void AbstractSlider::setValue(double val)
{
if (_log) {
if (val == 0.0f)
_value = _minValue;
else {
_value = fast_log10(val) * 20.0f;
if (_value < _minValue)
_value = _minValue;
}
}
else
_value = val;
update();
}
/* linear FFT data display */
static void plot_data_fft(MF2UI* ui) {
cairo_t* cr;
const double ccc = ui->width / 2.0 + .5;
const double rad = (ui->width - XOFF) * .5;
const float gain = robtk_dial_get_value(ui->gain);
const float persistence = robtk_dial_get_value(ui->screen);
cr = cairo_create (ui->sf_dat);
cairo_arc (cr, ccc, ccc, rad, 0, 2.0 * M_PI);
cairo_clip_preserve (cr);
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
if (persistence > 0) {
cairo_set_source_rgba(cr, 0, 0, 0, .3 - .003 * persistence);
} else {
cairo_set_source_rgba(cr, 0, 0, 0, 1.0);
}
cairo_fill(cr);
cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND);
const float dnum = ui->scale * PH_RAD / ui->log_base;
const float denom = ui->log_rate / (float)ui->fft_bins;
const float cutoff = ui->db_cutoff;
for (uint32_t i = 1; i < ui->fft_bins-1 ; ++i) {
if (ui->level[i] < 0) continue;
const float level = gain + fftx_power_to_dB(ui->level[i]);
if (level < cutoff) continue;
const float dist = dnum * fast_log10(1.0 + i * denom);
const float dx = ccc + dist * sinf(ui->phase[i]);
const float dy = ccc - dist * cosf(ui->phase[i]);
const float pk = level > 0.0 ? 1.0 : (cutoff - level) / cutoff;
draw_point(ui, cr, pk, dx, dy, ccc, dist, ui->phase[i]);
}
cairo_destroy (cr);
}
inline decibel::decibel(double val)
: val(20.0f * fast_log10(val))
{}
double trackVolToDb(double vol)
{
return fast_log10(vol) * 20.0;
}
static void plot_data_oct(SFSUI* ui) {
cairo_t* cr;
cr = cairo_create (ui->sf_dat);
rounded_rectangle (cr, SS_BORDER, SS_BORDER, SS_SIZE, SS_SIZE, SS_BORDER);
cairo_clip_preserve (cr);
const float persistence = robtk_dial_get_value(ui->screen);
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
if (persistence > 0) {
cairo_set_source_rgba(cr, 0, 0, 0, .33 - .0033 * persistence);
} else {
cairo_set_source_rgba(cr, 0, 0, 0, 1.0);
}
cairo_fill(cr);
cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND);
const float xmid = rintf(SS_BORDER + SS_SIZE *.5) + .5;
const float dnum = SS_SIZE / ui->log_base;
const float denom = 2.0 * ui->log_rate / ui->rate;
uint32_t fi = 1;
for (uint32_t i = 0; i < ui->freq_bins; ++i) {
float a_lr = 0;
float a_level = 0;
float a_freq = 0;
uint32_t a_cnt = 0;
while(fi < ui->freq_band[i]) {
if (ui->level[fi] < 0) { fi++; continue; }
a_freq += fi * ui->fa->freq_per_bin;
a_level += ui->level[fi];
a_lr += ui->lr[fi];
a_cnt++;
fi++;
}
if (a_cnt == 0) continue;
a_level = MAKEUP_GAIN + fftx_power_to_dB (a_level);
if (a_level < -80) continue;
a_freq /= (float)a_cnt;
a_lr /= (float)a_cnt;
const float y = rintf(SS_BORDER + SS_SIZE - dnum * fast_log10(1.0 + a_freq * denom)) + .5;
const float pk = a_level > 0.0 ? 1.0 : (80 + a_level) / 80.0;
float clr[3];
hsl2rgb(clr, .70 - .72 * pk, .9, .3 + pk * .4);
cairo_set_source_rgba(cr, clr[0], clr[1], clr[2], 0.8);
if (fabsf(a_lr -.5) < .05) {
cairo_set_line_width (cr, 3.0);
} else {
cairo_set_line_width (cr, 1.0);
}
cairo_move_to(cr, xmid, y);
cairo_line_to(cr, SS_BORDER + SS_SIZE * a_lr, y);
cairo_stroke(cr);
}
cairo_destroy (cr);
}
void Mixer_Strip::set_rms_level(int _index, float _rms_level)
{
rms_level_n_1[_index] = rms_level[_index];
rms_level[_index] = att_rms_level * rms_level_n_1[_index] + (1.0 - att_rms_level) * fast_log10(_rms_level);
if (rms_level[_index]>DB_VOL_MAX) rms_level[_index] = DB_VOL_MAX;
if (rms_level[_index]<DB_VOL_MIN) rms_level[_index] = DB_VOL_MIN;
coarseDial->setMeterVal(_index, rms_level[_index], max_level[_index]);
}
/* 1/Octave data display */
static void plot_data_oct(MF2UI* ui) {
cairo_t* cr;
const double ccc = ui->width / 2.0 + .5;
const double rad = (ui->width - XOFF) * .5;
const float gain = robtk_dial_get_value(ui->gain);
const float persistence = robtk_dial_get_value(ui->screen);
cr = cairo_create (ui->sf_dat);
cairo_arc (cr, ccc, ccc, rad, 0, 2.0 * M_PI);
cairo_clip_preserve (cr);
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
if (persistence > 0) {
cairo_set_source_rgba(cr, 0, 0, 0, .33 - .0033 * persistence);
} else {
cairo_set_source_rgba(cr, 0, 0, 0, 1.0);
}
cairo_fill(cr);
cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND);
const float dnum = ui->scale * PH_RAD / ui->log_base;
const float denom = 2.0 * ui->log_rate / ui->rate;
const float cutoff = ui->db_cutoff;
uint32_t fi = 1;
for (uint32_t i = 0; i < ui->freq_bins; ++i) {
float ang_x = 0;
float ang_y = 0;
float a_level = 0;
float a_freq = 0;
uint32_t a_cnt = 0;
while(fi < ui->freq_band[i]) {
if (ui->level[fi] < 0) { fi++; continue; }
a_freq += fi * ui->fa->freq_per_bin;
a_level += ui->level[fi];
ang_x += sinf(ui->phase[fi]);
ang_y += cosf(ui->phase[fi]);
a_cnt++;
fi++;
}
if (a_cnt == 0) continue;
a_level = gain + fftx_power_to_dB (a_level);
if (a_level < cutoff) continue;
a_freq /= (float)a_cnt;
const float dist = dnum * fast_log10(1.0 + a_freq * denom);
const float pk = a_level > 0.0 ? 1.0 : (cutoff - a_level) / cutoff;
float dx, dy;
if (a_cnt == 1) {
dx = ccc + dist * ang_x;
dy = ccc - dist * ang_y;
} else {
const float phase = atan2f(ang_x, ang_y);
dx = ccc + dist * sinf(phase);
dy = ccc - dist * cosf(phase);
}
draw_point(ui, cr, pk, dx, dy, 0, 0, 0);
}
cairo_destroy (cr);
}
/** draw frequency calibration circles
* and on screen annotations - sample-rate dependent
*/
static void update_grid(MF2UI* ui) {
const double ccc = ui->width / 2.0 + .5;
const double rad = (ui->width - XOFF) * .5;
cairo_t *cr = cairo_create (ui->sf_ann);
cairo_rectangle (cr, 0, 0, ui->width, ui->height);
CairoSetSouerceRGBA(ui->c_bg);
cairo_fill (cr);
cairo_set_line_width (cr, 1.0);
cairo_arc (cr, ccc, ccc, rad, 0, 2.0 * M_PI);
cairo_set_source_rgba(cr, 0, 0, 0, 1.0);
cairo_fill_preserve(cr);
CairoSetSouerceRGBA(c_g90);
cairo_stroke(cr);
const double dash1[] = {1.0, 2.0};
cairo_set_dash(cr, dash1, 2, 0);
CairoSetSouerceRGBA(c_grd);
float freq = 62.5;
while (freq < ui->rate / 2) {
char txt[16];
if (freq < 1000) {
snprintf(txt, 16, "%d Hz", (int)ceil(freq));
} else {
snprintf(txt, 16, "%d KHz", (int)ceil(freq/1000.f));
}
{
const float dr = ui->scale * PH_RAD * fast_log10(1.0 + 2 * freq * ui->log_rate / ui->rate) / ui->log_base;
cairo_arc (cr, ccc, ccc, dr, 0, 2.0 * M_PI);
cairo_stroke(cr);
const float px = ccc + dr * sinf(M_PI * -.75);
const float py = ccc - dr * cosf(M_PI * -.75);
write_text_full(cr, txt, ui->font[0], px, py, M_PI * -.75, -2, c_ahz);
}
freq *= 2.0;
}
const double dash2[] = {1.0, 3.0};
cairo_set_line_width(cr, 3.5);
cairo_set_dash(cr, dash2, 2, 2);
cairo_set_line_width(cr, 1.5);
cairo_move_to(cr, ccc - rad, ccc);
cairo_line_to(cr, ccc + rad, ccc);
cairo_stroke(cr);
cairo_set_line_width(cr, 3.5);
cairo_move_to(cr, ccc, ccc - rad);
cairo_line_to(cr, ccc, ccc + rad);
cairo_stroke(cr);
cairo_set_dash(cr, NULL, 0, 0);
write_text_full(cr, "+L", ui->font[0], ccc, ccc - rad * .92, 0, -2, c_ann);
write_text_full(cr, "-L", ui->font[0], ccc, ccc + rad * .92, 0, -2, c_ann);
write_text_full(cr, "0\u00B0", ui->font[0], ccc, ccc - rad * .80, 0, -2, c_ann);
write_text_full(cr, "180\u00B0", ui->font[0], ccc, ccc + rad * .80, 0, -2, c_ann);
write_text_full(cr, "-R", ui->font[0], ccc - rad * .92, ccc, 0, -2, c_ann);
write_text_full(cr, "+R", ui->font[0], ccc + rad * .92, ccc, 0, -2, c_ann);
write_text_full(cr, "-90\u00B0", ui->font[0], ccc - rad * .80, ccc, 0, -2, c_ann);
write_text_full(cr, "+90\u00B0", ui->font[0], ccc + rad * .80, ccc, 0, -2, c_ann);
cairo_destroy (cr);
}
FFTX_FN_PREFIX
inline float fftx_power_to_dB(float a) {
/* 10 instead of 20 because of squared signal -- no sqrt(powerp[]) */
return a > 1e-12 ? 10.0 * fast_log10(a) : -INFINITY;
}
void MeterSlider::paintEvent(QPaintEvent* ev)
{
int h = height();
int kh = sliderSize().height();
int mh = h - kh;
double range = maxValue() - minValue();
int ppos = int(mh * (_value - minValue()) / range);
if (_invert)
ppos = mh - ppos;
QPainter p(this);
p.setRenderHint(QPainter::Antialiasing, false);
//---------------------------------------------------
// draw meter
//---------------------------------------------------
int mw = _meterWidth / _channel;
int x = 20;
int y1 = kh / 2;
int y3 = h - y1;
p.setPen(QPen(Qt::white, 2));
for (int i = 0; i < _channel; ++i) {
int h = mh - (lrint(fast_log10(meterval[i]) * -20.0f * mh / range));
if (h < 0)
h = 0;
else if (h > mh)
h = mh;
p.drawPixmap(x, y1+mh-h, mw, h, onPm, 0, mh-h, mw, h);
p.drawPixmap(x, y1, mw, mh-h, offPm, 0, 0, mw, mh-h);
//---------------------------------------------------
// draw peak line
//---------------------------------------------------
h = mh - (lrint(fast_log10(meterPeak[i]) * -20.0f * mh / range));
if (h > mh)
h = mh;
if (h > 0)
p.drawLine(x, y3-h, x+mw, y3-h);
x += mw;
}
// optimize common case:
if (ev->rect() == QRect(20, kh/2, _meterWidth-1, mh))
return;
QColor sc(isEnabled() ? _scaleColor : Qt::gray);
QColor svc(isEnabled() ? _scaleValueColor : Qt::gray);
p.setBrush(svc);
//---------------------------------------------------
// draw scale
//---------------------------------------------------
int y2 = h - (ppos + y1);
p.fillRect(x, y1, _scaleWidth, y2-y1, sc);
p.fillRect(x, y2, _scaleWidth, y3-y2, svc);
//---------------------------------------------------
// draw tick marks
//---------------------------------------------------
QFont f(p.font());
f.setPointSize(6);
p.setFont(f);
p.setPen(QPen(Qt::darkGray, 2));
QFontMetrics fm(f);
int xt = 20 - fm.width("00") - 5;
QString s;
for (int i = 10; i < 70; i += 10) {
h = y1 + lrint(i * mh / range);
s.setNum(i - 10);
p.drawText(xt, h - 3, s);
p.drawLine(15, h, 20, h);
}
//---------------------------------------------------
// draw slider
//---------------------------------------------------
x += _scaleWidth/2;
p.setPen(QPen(svc, 0));
p.translate(QPointF(x, y2));
p.setRenderHint(QPainter::Antialiasing, true);
p.drawPath(*points);
}
double CtrlList::value(int frame, bool cur_val_only, int* nextFrame) const
{
if(cur_val_only || empty())
{
if(nextFrame)
*nextFrame = -1;
return _curVal;
}
double rv;
int nframe;
ciCtrl i = upper_bound(frame); // get the index after current frame
if (i == end()) { // if we are past all items just return the last value
--i;
if(nextFrame)
*nextFrame = -1;
return i->second.val;
}
else if(_mode == DISCRETE)
{
if(i == begin())
{
nframe = i->second.frame;
rv = i->second.val;
}
else
{
nframe = i->second.frame;
--i;
rv = i->second.val;
}
}
else { // INTERPOLATE
if (i == begin()) {
nframe = i->second.frame;
rv = i->second.val;
}
else {
int frame2 = i->second.frame;
double val2 = i->second.val;
--i;
int frame1 = i->second.frame;
double val1 = i->second.val;
if(val2 != val1)
nframe = 0; // Zero signifies the next frame should be determined by caller.
else
nframe = frame2;
if (_valueType == VAL_LOG) {
val1 = 20.0*fast_log10(val1);
if (val1 < MusEGlobal::config.minSlider)
val1=MusEGlobal::config.minSlider;
val2 = 20.0*fast_log10(val2);
if (val2 < MusEGlobal::config.minSlider)
val2=MusEGlobal::config.minSlider;
}
val2 -= val1;
val1 += (double(frame - frame1) * val2)/double(frame2 - frame1);
if (_valueType == VAL_LOG) {
val1 = exp10(val1/20.0);
}
rv = val1;
}
}
if(nextFrame)
*nextFrame = nframe;
return rv;
}
void MidiVolEntry::setValue(double v)
{
FloatEntry::setValue(-fast_log10(double(_max*_max)/(v*v))*20.0f);
}