#include "ardour/amp.h"
#include "ardour/audio_buffer.h"
#include "ardour/buffer_set.h"
+#include "ardour/gain_control.h"
#include "ardour/midi_buffer.h"
#include "ardour/rc_configuration.h"
#include "ardour/session.h"
-#include "i18n.h"
+#include "pbd/i18n.h"
using namespace ARDOUR;
using namespace PBD;
// used for low-pass filter denormal protection
#define GAIN_COEFF_TINY (1e-10) // -200dB
-Amp::Amp (Session& s, const std::string& name, boost::shared_ptr<AutomationControl> gc, bool control_midi_also)
+Amp::Amp (Session& s, const std::string& name, boost::shared_ptr<GainControl> gc, bool control_midi_also)
: Processor(s, "Amp")
, _apply_gain(true)
, _apply_gain_automation(false)
return Processor::configure_io (in, out);
}
+static void
+scale_midi_velocity(Evoral::Event<MidiBuffer::TimeType>& ev, float factor)
+{
+ factor = std::max(factor, 0.0f);
+ ev.set_velocity(std::min(127L, lrintf(ev.velocity() * factor)));
+}
+
void
-Amp::run (BufferSet& bufs, framepos_t /*start_frame*/, framepos_t /*end_frame*/, pframes_t nframes, bool)
+Amp::run (BufferSet& bufs, framepos_t /*start_frame*/, framepos_t /*end_frame*/, double /*speed*/, pframes_t nframes, bool)
{
if (!_active && !_pending_active) {
return;
for (BufferSet::midi_iterator i = bufs.midi_begin(); i != bufs.midi_end(); ++i) {
MidiBuffer& mb (*i);
for (MidiBuffer::iterator m = mb.begin(); m != mb.end(); ++m) {
- Evoral::MIDIEvent<MidiBuffer::TimeType> ev = *m;
+ Evoral::Event<MidiBuffer::TimeType> ev = *m;
if (ev.is_note_on()) {
assert(ev.time() >= 0 && ev.time() < nframes);
- ev.scale_velocity (fabsf (gab[ev.time()]));
+ scale_midi_velocity (ev, fabsf (gab[ev.time()]));
}
}
}
} else { /* manual (scalar) gain */
- gain_t const dg = _gain_control->user_double();
+ gain_t const dg = _gain_control->get_value();
if (_current_gain != dg) {
MidiBuffer& mb (*i);
for (MidiBuffer::iterator m = mb.begin(); m != mb.end(); ++m) {
- Evoral::MIDIEvent<MidiBuffer::TimeType> ev = *m;
+ Evoral::Event<MidiBuffer::TimeType> ev = *m;
if (ev.is_note_on()) {
- ev.scale_velocity (fabsf (_current_gain));
+ scale_midi_velocity (ev, fabsf (_current_gain));
}
}
}
MidiBuffer& mb (*i);
for (MidiBuffer::iterator m = mb.begin(); m != mb.end(); ++m) {
- Evoral::MIDIEvent<MidiBuffer::TimeType> ev = *m;
+ Evoral::Event<MidiBuffer::TimeType> ev = *m;
if (ev.is_note_on()) {
const gain_t scale = delta * (ev.time()/(double) nframes);
- ev.scale_velocity (fabsf (initial+scale));
+ scale_midi_velocity (ev, fabsf (initial + scale));
}
}
}
MidiBuffer& mb (*i);
for (MidiBuffer::iterator m = mb.begin(); m != mb.end(); ++m) {
- Evoral::MIDIEvent<MidiBuffer::TimeType> ev = *m;
+ Evoral::Event<MidiBuffer::TimeType> ev = *m;
if (ev.is_note_on()) {
ev.set_velocity (0);
}
MidiBuffer& mb (*i);
for (MidiBuffer::iterator m = mb.begin(); m != mb.end(); ++m) {
- Evoral::MIDIEvent<MidiBuffer::TimeType> ev = *m;
+ Evoral::Event<MidiBuffer::TimeType> ev = *m;
if (ev.is_note_on()) {
- ev.scale_velocity (fabsf (target));
+ scale_midi_velocity(ev, fabsf (target));
}
}
}
}
}
-void
-Amp::inc_gain (gain_t factor, void *src)
-{
- float desired_gain = _gain_control->user_double();
-
- if (fabsf (desired_gain) < GAIN_COEFF_SMALL) {
- // really?! what's the idea here?
- set_gain (0.000001f + (0.000001f * factor), src);
- } else {
- set_gain (desired_gain + (desired_gain * factor), src);
- }
-}
-
-void
-Amp::set_gain (gain_t val, void *)
-{
- _gain_control->set_value (val, Controllable::NoGroup);
-}
-
XMLNode&
Amp::state (bool full_state)
{
return 0;
}
-Amp::GainControl::GainControl (Session& session, const Evoral::Parameter ¶m, boost::shared_ptr<AutomationList> al)
- : AutomationControl (session, param, ParameterDescriptor(param),
- al ? al : boost::shared_ptr<AutomationList> (new AutomationList (param)),
- param.type() == GainAutomation ? X_("gaincontrol") : X_("trimcontrol")) {
-
- alist()->reset_default (1.0);
-
- lower_db = accurate_coefficient_to_dB (_desc.lower);
- range_db = accurate_coefficient_to_dB (_desc.upper) - lower_db;
-}
-
-void
-Amp::GainControl::set_value (double val, PBD::Controllable::GroupControlDisposition /* group_override */)
-{
- if (writable()) {
- set_value_unchecked (val);
- }
-}
-
-void
-Amp::GainControl::set_value_unchecked (double val)
-{
- AutomationControl::set_value (std::max (std::min (val, (double)_desc.upper), (double)_desc.lower), Controllable::NoGroup);
- _session.set_dirty ();
-}
-
-double
-Amp::GainControl::internal_to_interface (double v) const
-{
- if (_desc.type == GainAutomation) {
- return gain_to_slider_position (v);
- } else {
- return (accurate_coefficient_to_dB (v) - lower_db) / range_db;
- }
-}
-
-double
-Amp::GainControl::interface_to_internal (double v) const
-{
- if (_desc.type == GainAutomation) {
- return slider_position_to_gain (v);
- } else {
- return dB_to_coefficient (lower_db + v * range_db);
- }
-}
-
-double
-Amp::GainControl::internal_to_user (double v) const
-{
- return accurate_coefficient_to_dB (v);
-}
-
-double
-Amp::GainControl::user_to_internal (double u) const
-{
- return dB_to_coefficient (u);
-}
-
-std::string
-Amp::GainControl::get_user_string () const
-{
- char theBuf[32]; sprintf( theBuf, _("%3.1f dB"), accurate_coefficient_to_dB (get_value()));
- return std::string(theBuf);
-}
-
/** Write gain automation for this cycle into the buffer previously passed in to
* set_gain_automation_buffer (if we are in automation playback mode and the
* transport is rolling).
assert (_gain_automation_buffer);
_apply_gain_automation = _gain_control->list()->curve().rt_safe_get_vector (
start_frame, end_frame, _gain_automation_buffer, nframes);
- if (start_frame != _current_automation_frame) {
+
+ /* XXX the future requires a way to automate the control master
+ * and merge its own automation vector/curve with this one. We
+ * don't have a way to do that just yet, so for now, just get
+ * the master's current gain and scale our own automation
+ * vector/curve by this value.
+ */
+
+ if (_gain_control->slaved()) {
+ const double master_gain = _gain_control->get_masters_value ();
+ if (master_gain != 1.0) {
+ apply_gain_to_buffer (_gain_automation_buffer, nframes, master_gain);
+ }
+ }
+
+ if (start_frame != _current_automation_frame && _session.bounce_processing ()) {
_current_gain = _gain_automation_buffer[0];
}
_current_automation_frame = end_frame;
}
std::string
-Amp::value_as_string (boost::shared_ptr<AutomationControl> ac) const
+Amp::value_as_string (boost::shared_ptr<const AutomationControl> ac) const
{
if (ac == _gain_control) {
char buffer[32];
projects / ardour.git / blobdiff