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livetrax/libs/surfaces/websockets/dispatcher.cc

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/*
* Copyright (C) 2020 Luciano Iam <oss@lucianoiam.com>
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*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
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#include <boost/assign.hpp>
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#include "ardour/plugin_insert.h"
#include "ardour_websockets.h"
#include "dispatcher.h"
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#include "state.h"
using namespace ARDOUR;
using namespace ArdourSurface;
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#define NODE_METHOD_PAIR(x) (Node::x, &WebsocketsDispatcher::x##_handler)
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WebsocketsDispatcher::NodeMethodMap
WebsocketsDispatcher::_node_to_method = boost::assign::map_list_of
NODE_METHOD_PAIR (transport_tempo)
NODE_METHOD_PAIR (transport_roll)
NODE_METHOD_PAIR (transport_record)
NODE_METHOD_PAIR (strip_gain)
NODE_METHOD_PAIR (strip_pan)
NODE_METHOD_PAIR (strip_mute)
NODE_METHOD_PAIR (strip_plugin_enable)
NODE_METHOD_PAIR (strip_plugin_param_value);
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void
WebsocketsDispatcher::dispatch (Client client, const NodeStateMessage& msg)
{
NodeMethodMap::iterator it = _node_to_method.find (msg.state ().node ());
if (it != _node_to_method.end ()) {
try {
(this->*it->second) (client, msg);
} catch (const std::exception& e) {
std::cerr << e.what () << std::endl;
}
}
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}
void
WebsocketsDispatcher::update_all_nodes (Client client)
{
for (ArdourMixer::StripMap::iterator it = mixer().strips().begin(); it != mixer().strips().end(); ++it) {
uint32_t strip_id = it->first;
ArdourMixerStrip& strip = *it->second;
AddressVector strip_addr = AddressVector ();
strip_addr.push_back (strip_id);
ValueVector strip_desc = ValueVector ();
strip_desc.push_back (strip.name ());
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strip_desc.push_back ((int)strip.stripable ()->presentation_info ().flags ());
update (client, Node::strip_description, strip_addr, strip_desc);
update (client, Node::strip_gain, strip_id, strip.gain ());
update (client, Node::strip_mute, strip_id, strip.mute ());
if (strip.has_pan ()) {
update (client, Node::strip_pan, strip_id, strip.pan ());
}
for (ArdourMixerStrip::PluginMap::iterator it = strip.plugins ().begin (); it != strip.plugins ().end (); ++it) {
uint32_t plugin_id = it->first;
boost::shared_ptr<PluginInsert> insert = it->second->insert ();
boost::shared_ptr<Plugin> plugin = insert->plugin ();
update (client, Node::strip_plugin_description, strip_id, plugin_id,
static_cast<std::string> (plugin->name ()));
update (client, Node::strip_plugin_enable, strip_id, plugin_id,
strip.plugin (plugin_id).enabled ());
for (uint32_t param_id = 0; param_id < plugin->parameter_count (); ++param_id) {
boost::shared_ptr<AutomationControl> a_ctrl;
try {
a_ctrl = strip.plugin (plugin_id).param_control (param_id);
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} catch (ArdourMixerNotFoundException& err) {
continue;
}
AddressVector addr = AddressVector ();
addr.push_back (strip_id);
addr.push_back (plugin_id);
addr.push_back (param_id);
ValueVector val = ValueVector ();
val.push_back (a_ctrl->name ());
// possible flags: enumeration, integer_step, logarithmic, sr_dependent, toggled
ParameterDescriptor pd = a_ctrl->desc ();
if (pd.toggled) {
val.push_back (std::string ("b"));
} else if (pd.enumeration || pd.integer_step) {
val.push_back (std::string ("i"));
val.push_back (pd.lower);
val.push_back (pd.upper);
} else {
val.push_back (std::string ("d"));
val.push_back (pd.lower);
val.push_back (pd.upper);
val.push_back (pd.logarithmic);
}
update (client, Node::strip_plugin_param_description, addr, val);
TypedValue value = strip.plugin (plugin_id).param_value (param_id);
update (client, Node::strip_plugin_param_value, strip_id, plugin_id, param_id, value);
}
}
}
update (client, Node::transport_tempo, transport ().tempo ());
update (client, Node::transport_time, transport ().time ());
update (client, Node::transport_roll, transport ().roll ());
update (client, Node::transport_record, transport ().record ());
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}
void
WebsocketsDispatcher::transport_tempo_handler (Client client, const NodeStateMessage& msg)
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{
const NodeState& state = msg.state ();
if (msg.is_write () && (state.n_val () > 0)) {
transport ().set_tempo (state.nth_val (0));
} else {
update (client, Node::transport_tempo, transport ().tempo ());
}
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}
void
WebsocketsDispatcher::transport_roll_handler (Client client, const NodeStateMessage& msg)
{
const NodeState& state = msg.state ();
if (msg.is_write () && (state.n_val () > 0)) {
transport ().set_roll (state.nth_val (0));
} else {
update (client, Node::transport_roll, transport ().roll ());
}
}
void
WebsocketsDispatcher::transport_record_handler (Client client, const NodeStateMessage& msg)
{
const NodeState& state = msg.state ();
if (msg.is_write () && (state.n_val () > 0)) {
transport ().set_record (state.nth_val (0));
} else {
update (client, Node::transport_record, transport ().record ());
}
}
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void
WebsocketsDispatcher::strip_gain_handler (Client client, const NodeStateMessage& msg)
{
const NodeState& state = msg.state ();
if (state.n_addr () < 1) {
return;
}
uint32_t strip_id = state.nth_addr (0);
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if (msg.is_write () && (state.n_val () > 0)) {
mixer ().strip (strip_id).set_gain (state.nth_val (0));
} else {
update (client, Node::strip_gain, strip_id, mixer ().strip (strip_id).gain ());
}
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}
void
WebsocketsDispatcher::strip_pan_handler (Client client, const NodeStateMessage& msg)
{
const NodeState& state = msg.state ();
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if (state.n_addr () < 1) {
return;
}
uint32_t strip_id = state.nth_addr (0);
if (msg.is_write () && (state.n_val () > 0)) {
mixer ().strip (strip_id).set_pan (state.nth_val (0));
} else {
update (client, Node::strip_pan, strip_id, mixer ().strip (strip_id).pan ());
}
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}
void
WebsocketsDispatcher::strip_mute_handler (Client client, const NodeStateMessage& msg)
{
const NodeState& state = msg.state ();
if (state.n_addr () < 1) {
return;
}
uint32_t strip_id = state.nth_addr (0);
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if (msg.is_write () && (state.n_val () > 0)) {
mixer ().strip (strip_id).set_mute (state.nth_val (0));
} else {
update (client, Node::strip_mute, strip_id, mixer ().strip (strip_id).mute ());
}
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}
void
WebsocketsDispatcher::strip_plugin_enable_handler (Client client, const NodeStateMessage& msg)
{
const NodeState& state = msg.state ();
if (state.n_addr () < 2) {
return;
}
uint32_t strip_id = state.nth_addr (0);
uint32_t plugin_id = state.nth_addr (1);
if (msg.is_write () && (state.n_val () > 0)) {
mixer ().strip (strip_id).plugin (plugin_id).set_enabled (state.nth_val (0));
} else {
update (client, Node::strip_plugin_enable, strip_id, plugin_id,
mixer ().strip (strip_id).plugin (plugin_id).enabled ());
}
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}
void
WebsocketsDispatcher::strip_plugin_param_value_handler (Client client, const NodeStateMessage& msg)
{
const NodeState& state = msg.state ();
if (state.n_addr () < 3) {
return;
}
uint32_t strip_id = state.nth_addr (0);
uint32_t plugin_id = state.nth_addr (1);
uint32_t param_id = state.nth_addr (2);
if (msg.is_write () && (state.n_val () > 0)) {
mixer ().strip (strip_id).plugin (plugin_id).set_param_value (param_id,
state.nth_val (0));
} else {
TypedValue value = mixer ().strip (strip_id).plugin (plugin_id).param_value (param_id);
update (client, Node::strip_plugin_param_value, strip_id, plugin_id, param_id, value);
}
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}
void
WebsocketsDispatcher::update (Client client, std::string node, TypedValue val1)
{
update (client, node, ADDR_NONE, ADDR_NONE, ADDR_NONE, val1);
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}
void
WebsocketsDispatcher::update (Client client, std::string node, uint32_t strip_id, TypedValue val1)
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{
update (client, node, strip_id, ADDR_NONE, ADDR_NONE, val1);
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}
void
WebsocketsDispatcher::update (Client client, std::string node, uint32_t strip_id, uint32_t plugin_id,
TypedValue val1)
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{
update (client, node, strip_id, plugin_id, ADDR_NONE, val1);
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}
void
WebsocketsDispatcher::update (Client client, std::string node, uint32_t strip_id, uint32_t plugin_id,
uint32_t param_id, TypedValue val1)
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{
AddressVector addr = AddressVector ();
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if (strip_id != ADDR_NONE) {
addr.push_back (strip_id);
}
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if (plugin_id != ADDR_NONE) {
addr.push_back (plugin_id);
}
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if (param_id != ADDR_NONE) {
addr.push_back (param_id);
}
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ValueVector val = ValueVector ();
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if (!val1.empty ()) {
val.push_back (val1);
}
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update (client, node, addr, val);
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}
void
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WebsocketsDispatcher::update (Client client, std::string node, const AddressVector& addr,
const ValueVector& val)
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{
server ().update_client (client, NodeState (node, addr, val), true);
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}