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-rw-r--r--libs/ardour/io.cc226
1 files changed, 16 insertions, 210 deletions
diff --git a/libs/ardour/io.cc b/libs/ardour/io.cc
index 8225396486..1c8de5008a 100644
--- a/libs/ardour/io.cc
+++ b/libs/ardour/io.cc
@@ -74,17 +74,17 @@ sigc::signal<int> IO::PortsCreated;
Glib::StaticMutex IO::m_meter_signal_lock = GLIBMM_STATIC_MUTEX_INIT;
-/* this is a default mapper of MIDI control values to a gain coefficient.
- others can be imagined. see IO::set_midi_to_gain_function().
+/* this is a default mapper of [0 .. 1.0] control values to a gain coefficient.
+ others can be imagined.
*/
-static gain_t direct_midi_to_gain (double fract) {
+static gain_t direct_control_to_gain (double fract) {
/* XXX Marcus writes: this doesn't seem right to me. but i don't have a better answer ... */
/* this maxes at +6dB */
return pow (2.0,(sqrt(sqrt(sqrt(fract)))*198.0-192.0)/6.0);
}
-static double direct_gain_to_midi (gain_t gain) {
+static double direct_gain_to_control (gain_t gain) {
/* XXX Marcus writes: this doesn't seem right to me. but i don't have a better answer ... */
if (gain == 0) return 0.0;
@@ -97,11 +97,8 @@ static bool sort_ports_by_name (Port* a, Port* b)
}
-/** The 'default_type' argument here isn't very good, but port creation is too
- * brufty and all over the place to make anything else feasible without massive
- * changes. The default typed passed is the type of port that will be created
- * by ensure_io and friends. This is a temporary compatibility hack to get
- * multiple data types off the gound and should be removed.
+/** @param default_type The type of port that will be created by ensure_io
+ * and friends if no type is explicitly requested (to avoid breakage).
*/
IO::IO (Session& s, string name,
int input_min, int input_max, int output_min, int output_max,
@@ -109,14 +106,13 @@ IO::IO (Session& s, string name,
: _session (s),
_name (name),
_default_type(default_type),
- _midi_gain_control (*this, _session.midi_port()),
+ _gain_control (*this),
_gain_automation_curve (0.0, 2.0, 1.0),
_input_minimum (input_min),
_input_maximum (input_max),
_output_minimum (output_min),
_output_maximum (output_max)
{
- _id = new_id();
_panner = new Panner (name, _session);
_gain = 1.0;
_desired_gain = 1.0;
@@ -128,9 +124,6 @@ IO::IO (Session& s, string name,
no_panner_reset = false;
deferred_state = 0;
- _midi_gain_control.midi_to_gain = direct_midi_to_gain;
- _midi_gain_control.gain_to_midi = direct_gain_to_midi;
-
apply_gain_automation = false;
last_automation_snapshot = 0;
@@ -1429,7 +1422,7 @@ XMLNode&
IO::state (bool full_state)
{
XMLNode* node = new XMLNode (state_node_name);
- char buf[32];
+ char buf[64];
string str;
bool need_ins = true;
bool need_outs = true;
@@ -1437,7 +1430,7 @@ IO::state (bool full_state)
Glib::Mutex::Lock lm (io_lock);
node->add_property("name", _name);
- snprintf (buf, sizeof(buf), "%" PRIu64, id());
+ id().print (buf);
node->add_property("id", buf);
str = "";
@@ -1531,22 +1524,6 @@ IO::state (bool full_state)
node->add_property ("iolimits", buf);
- /* MIDI control */
-
- MIDI::channel_t chn;
- MIDI::eventType ev;
- MIDI::byte additional;
- XMLNode* midi_node = 0;
- XMLNode* child;
-
- if (_midi_gain_control.get_control_info (chn, ev, additional)) {
-
- midi_node = node->add_child ("MIDI");
-
- child = midi_node->add_child ("gain");
- set_midi_node_info (child, ev, chn, additional);
- }
-
/* automation */
if (full_state) {
@@ -1615,7 +1592,6 @@ IO::set_state (const XMLNode& node)
{
const XMLProperty* prop;
XMLNodeConstIterator iter;
- XMLNodeList midi_kids;
LocaleGuard lg (X_("POSIX"));
/* force use of non-localized representation of decimal point,
@@ -1633,7 +1609,7 @@ IO::set_state (const XMLNode& node)
}
if ((prop = node.property ("id")) != 0) {
- sscanf (prop->value().c_str(), "%" PRIu64, &_id);
+ _id = prop->value ();
}
if ((prop = node.property ("iolimits")) != 0) {
@@ -1655,35 +1631,6 @@ IO::set_state (const XMLNode& node)
}
}
- midi_kids = node.children ("MIDI");
-
- for (iter = midi_kids.begin(); iter != midi_kids.end(); ++iter) {
-
- XMLNodeList kids;
- XMLNodeConstIterator miter;
- XMLNode* child;
-
- kids = (*iter)->children ();
-
- for (miter = kids.begin(); miter != kids.end(); ++miter) {
-
- child =* miter;
-
- if (child->name() == "gain") {
-
- MIDI::eventType ev = MIDI::on; /* initialize to keep gcc happy */
- MIDI::byte additional = 0; /* ditto */
- MIDI::channel_t chn = 0; /* ditto */
-
- if (get_midi_node_info (child, ev, chn, additional)) {
- _midi_gain_control.set_control_type (chn, ev, additional);
- } else {
- error << string_compose(_("MIDI gain control specification for %1 is incomplete, so it has been ignored"), _name) << endmsg;
- }
- }
- }
- }
-
if ((prop = node.property ("automation-state")) != 0) {
long int x;
@@ -1801,50 +1748,6 @@ IO::create_ports (const XMLNode& node)
return 0;
}
-bool
-IO::get_midi_node_info (XMLNode * node, MIDI::eventType & ev, MIDI::channel_t & chan, MIDI::byte & additional)
-{
- bool ok = true;
- const XMLProperty* prop;
- int xx;
-
- if ((prop = node->property ("event")) != 0) {
- sscanf (prop->value().c_str(), "0x%x", &xx);
- ev = (MIDI::eventType) xx;
- } else {
- ok = false;
- }
-
- if (ok && ((prop = node->property ("channel")) != 0)) {
- sscanf (prop->value().c_str(), "%d", &xx);
- chan = (MIDI::channel_t) xx;
- } else {
- ok = false;
- }
-
- if (ok && ((prop = node->property ("additional")) != 0)) {
- sscanf (prop->value().c_str(), "0x%x", &xx);
- additional = (MIDI::byte) xx;
- }
-
- return ok;
-}
-
-bool
-IO::set_midi_node_info (XMLNode * node, MIDI::eventType ev, MIDI::channel_t chan, MIDI::byte additional)
-{
- char buf[32];
-
- snprintf (buf, sizeof(buf), "0x%x", ev);
- node->add_property ("event", buf);
- snprintf (buf, sizeof(buf), "%d", chan);
- node->add_property ("channel", buf);
- snprintf (buf, sizeof(buf), "0x%x", additional);
- node->add_property ("additional", buf);
-
- return true;
-}
-
int
IO::make_connections (const XMLNode& node)
@@ -2371,69 +2274,16 @@ IO::output_connection_configuration_changed ()
use_output_connection (*_output_connection, this);
}
-IO::MIDIGainControl::MIDIGainControl (IO& i, MIDI::Port* port)
- : MIDI::Controllable (port, 0), io (i), setting(false)
-{
- midi_to_gain = 0;
- gain_to_midi = 0;
- setting = false;
- last_written = 0; /* XXX need a good out-of-bound-value */
-}
-
void
-IO::MIDIGainControl::set_value (float val)
+IO::GainControllable::set_value (float val)
{
- if (midi_to_gain == 0) return;
-
- setting = true;
- io.set_gain (midi_to_gain (val), this);
- setting = false;
-}
-
-void
-IO::MIDIGainControl::send_feedback (gain_t gain)
-{
- if (!setting && get_midi_feedback() && gain_to_midi) {
- MIDI::byte val = (MIDI::byte) (gain_to_midi (gain) * 127.0);
- MIDI::channel_t ch = 0;
- MIDI::eventType ev = MIDI::none;
- MIDI::byte additional = 0;
- MIDI::EventTwoBytes data;
-
- if (get_control_info (ch, ev, additional)) {
- data.controller_number = additional;
- data.value = val;
- last_written = val;
-
- io._session.send_midi_message (get_port(), ev, ch, data);
- }
- //send_midi_feedback (gain_to_midi (gain));
- }
+ io.set_gain (direct_control_to_gain (val), this);
}
-MIDI::byte*
-IO::MIDIGainControl::write_feedback (MIDI::byte* buf, int32_t& bufsize, gain_t val, bool force)
+float
+IO::GainControllable::get_value (void) const
{
- if (get_midi_feedback() && gain_to_midi && bufsize > 2) {
- MIDI::channel_t ch = 0;
- MIDI::eventType ev = MIDI::none;
- MIDI::byte additional = 0;
- MIDI::byte gm;
-
- if (get_control_info (ch, ev, additional)) {
- gm = (MIDI::byte) (gain_to_midi (val) * 127.0);
-
- if (gm != last_written) {
- *buf++ = (0xF0 & ev) | (0xF & ch);
- *buf++ = additional; /* controller number */
- *buf++ = gm;
- last_written = gm;
- bufsize -= 3;
- }
- }
- }
-
- return buf;
+ return direct_gain_to_control (io.effective_gain());
}
void
@@ -2525,23 +2375,6 @@ IO::meter ()
}
}
-void
-IO::reset_midi_control (MIDI::Port* port, bool on)
-{
- MIDI::channel_t chn;
- MIDI::eventType ev;
- MIDI::byte extra;
-
- _midi_gain_control.get_control_info (chn, ev, extra);
- if (!on) {
- chn = -1;
- }
- _midi_gain_control.midi_rebind (port, chn);
-
- _panner->reset_midi_control (port, on);
-}
-
-
int
IO::save_automation (const string& path)
{
@@ -2731,10 +2564,7 @@ IO::set_gain (gain_t val, void *src)
}
gain_changed (src);
-
- if (_session.get_midi_feedback()) {
- _midi_gain_control.send_feedback (_desired_gain);
- }
+ _gain_control.Changed (); /* EMIT SIGNAL */
if (_session.transport_stopped() && src != 0 && src != this && gain_automation_recording()) {
_gain_automation_curve.add (_session.transport_frame(), val);
@@ -2745,30 +2575,6 @@ IO::set_gain (gain_t val, void *src)
}
void
-IO::send_all_midi_feedback ()
-{
- if (_session.get_midi_feedback()) {
- _midi_gain_control.send_feedback (_effective_gain);
-
- // panners
- _panner->send_all_midi_feedback();
- }
-}
-
-MIDI::byte*
-IO::write_midi_feedback (MIDI::byte* buf, int32_t& bufsize)
-{
- if (_session.get_midi_feedback()) {
- if (gain_automation_playback ()) {
- buf = _midi_gain_control.write_feedback (buf, bufsize, _effective_gain);
- }
- buf = _panner->write_midi_feedback (buf, bufsize);
- }
-
- return buf;
-}
-
-void
IO::start_gain_touch ()
{
_gain_automation_curve.start_touch ();
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