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324 lines
8.9 KiB
324 lines
8.9 KiB
/*
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Copyright (C) 2000 Stefan Westerfeld
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stefan@space.twc.de
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "artsflow.h"
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#include "flowsystem.h"
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#include "stdsynthmodule.h"
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#include "bus.h"
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using namespace Arts;
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using namespace std;
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namespace Arts {
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class AudioManagerClient_impl;
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class AudioManagerAssignable {
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public:
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virtual long ID() = 0;
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virtual void destination(const string& newDestination) = 0;
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};
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#ifdef __SUNPRO_CC
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/* Bloody SunPRO CC has problems with instantiation of the below two
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templates, if the _clients and assignable member of AudioManager_impl
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are declared to be directly the type list<xxx *>. So instead be move
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a typedef in between, which makes it magically work.
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We could also use an explicit instantiation, but this is not allowed
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on all C++ compilers in this scope. Note also, that we don't need
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to replace _all_ occurrences of list<xxx*> below, only the two in the
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member declaration. What a mess. */
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typedef list<AudioManagerClient_impl *> L_AMC;
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typedef list<AudioManagerAssignable *> L_AMA;
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#else
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/* with normal compilers there is no need for this typedef. */
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#define L_AMC list<AudioManagerClient_impl *>
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#define L_AMA list<AudioManagerAssignable *>
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#endif
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class AudioManager_impl : virtual public AudioManager_skel
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{
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protected:
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L_AMC _clients;
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L_AMA assignable;
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long _changes, nextID;
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static AudioManager_impl *instance;
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public:
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AudioManager_impl()
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{
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assert(!instance);
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instance = this;
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_changes = 0;
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nextID = 1;
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}
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~AudioManager_impl()
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{
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assert(instance);
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instance = 0;
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}
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vector<string> *destinations() { return BusManager::the()->busList(); }
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long changes() { return _changes; }
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vector<AudioManagerInfo> *clients();
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void setDestination(long ID, const string& newDestination);
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AudioManagerClient_impl *findClient(long ID);
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// non MCOP interface
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static AudioManager_impl *the() {
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assert(instance);
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return instance;
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}
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long addClient(AudioManagerClient_impl *client) {
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_clients.push_back(client);
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_changes++;
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return nextID++;
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}
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void removeClient(AudioManagerClient_impl *client) {
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_changes++;
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_clients.remove(client);
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}
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void addAssignable(AudioManagerAssignable *a);
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void removeAssignable(AudioManagerAssignable *a) {
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assignable.remove(a);
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}
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};
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AudioManager_impl *AudioManager_impl::instance = 0;
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class AudioManagerClient_impl :virtual public AudioManagerClient_skel
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{
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protected:
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string _title, _autoRestoreID;
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long _ID;
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AudioManagerDirection _direction;
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string _destination;
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public:
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AudioManagerClient_impl() {
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_ID = AudioManager_impl::the()->addClient(this);
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}
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~AudioManagerClient_impl() {
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AudioManager_impl::the()->removeClient(this);
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}
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void title(const string& newvalue) { _title = newvalue; }
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string title() { return _title; }
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void autoRestoreID(const string& newvalue) { _autoRestoreID = newvalue; }
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string autoRestoreID() { return _autoRestoreID; }
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long ID() { return _ID; }
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AudioManagerDirection direction() { return _direction; }
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void direction(AudioManagerDirection newvalue) { _direction = newvalue; }
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void constructor(AudioManagerDirection cdirection, const string& ctitle,
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const string& cautoRestoreID)
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{
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direction(cdirection);
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title(ctitle);
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autoRestoreID(cautoRestoreID);
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}
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/* non MCOP interface */
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string destination() { return _destination; }
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void destination(const string& newvalue) { _destination = newvalue; }
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};
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// this suffers a tiny bit from copypasting due to simpler
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// inheritance hierarchy
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class Synth_AMAN_PLAY_impl :virtual public Synth_AMAN_PLAY_skel,
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virtual public AudioManagerAssignable,
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virtual public StdSynthModule
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{
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protected:
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Synth_BUS_UPLINK uplink;
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AudioManagerClient client;
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public:
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/* forward requests for title/autoRestoreID to client */
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void title(const string& newvalue) { client.title(newvalue); }
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string title() { return client.title(); }
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void autoRestoreID(const string& newvalue) {client.autoRestoreID(newvalue);}
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string autoRestoreID() { return client.autoRestoreID(); }
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/* assign an already well-known client */
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void constructor(AudioManagerClient client) {
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this->client = client;
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assert(client.direction() == amPlay);
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}
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Synth_AMAN_PLAY_impl() {
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// Set direction of the client to amPlay, but actually it would
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// be nice to do that only when we know we won't get a different client
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// to use.
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client.direction(amPlay);
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_node()->virtualize("left",uplink._node(),"left");
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_node()->virtualize("right",uplink._node(),"right");
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}
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void streamInit() {
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AudioManager_impl::the()->addAssignable(this);
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uplink.start();
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}
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void streamEnd() {
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AudioManager_impl::the()->removeAssignable(this);
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uplink.stop();
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}
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AutoSuspendState autoSuspend() {
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return asSuspend;
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}
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// Assignable:
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void destination(const string& destination) { uplink.busname(destination); }
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long ID() { return client.ID(); }
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};
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// this suffers a tiny bit from copypasting due to simpler
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// inheritance hierarchy
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class Synth_AMAN_RECORD_impl :virtual public Synth_AMAN_RECORD_skel,
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virtual public AudioManagerAssignable,
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virtual public StdSynthModule
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{
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protected:
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Synth_BUS_DOWNLINK downlink;
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AudioManagerClient client;
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public:
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/* forward requests for title/autoRestoreID to client */
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void title(const string& newvalue) { client.title(newvalue); }
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string title() { return client.title(); }
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void autoRestoreID(const string& newvalue) {client.autoRestoreID(newvalue);}
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string autoRestoreID() { return client.autoRestoreID(); }
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/* assign an already well-known client */
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void constructor(AudioManagerClient client) {
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this->client = client;
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assert(client.direction() == amRecord);
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}
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Synth_AMAN_RECORD_impl() {
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// Set direction of the client to amRecord, but actually it would
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// be nice to do that only when we know we won't get a different client
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// to use.
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client.direction(amRecord);
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_node()->virtualize("left",downlink._node(),"left");
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_node()->virtualize("right",downlink._node(),"right");
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}
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void streamInit() {
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AudioManager_impl::the()->addAssignable(this);
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downlink.start();
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}
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void streamEnd() {
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AudioManager_impl::the()->removeAssignable(this);
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downlink.stop();
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}
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// Assignable:
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void destination(const string& destination){downlink.busname(destination);}
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long ID() { return client.ID(); }
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};
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vector<AudioManagerInfo> *AudioManager_impl::clients()
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{
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vector<AudioManagerInfo> *result = new vector<AudioManagerInfo>;
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list<AudioManagerClient_impl *>::iterator i;
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for(i = _clients.begin(); i != _clients.end(); i++)
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{
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AudioManagerClient_impl *client = *i;
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AudioManagerInfo info;
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info.ID = client->ID();
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info.direction = client->direction();
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info.title = client->title();
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info.autoRestoreID = client->autoRestoreID();
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info.destination = client->destination();
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result->push_back(info);
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}
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return result;
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}
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AudioManagerClient_impl *AudioManager_impl::findClient(long ID)
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{
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list<AudioManagerClient_impl *>::iterator i;
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for(i = _clients.begin(); i != _clients.end(); i++)
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{
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AudioManagerClient_impl *client = *i;
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if(client->ID() == ID)
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return client;
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}
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return 0;
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}
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void AudioManager_impl::setDestination(long ID, const string& newDestination)
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{
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AudioManagerClient_impl *client = findClient(ID);
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if(client)
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{
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client->destination(newDestination);
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list<AudioManagerAssignable *>::iterator i;
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for(i = assignable.begin(); i != assignable.end(); i++)
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{
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AudioManagerAssignable *a = *i;
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if(a->ID() == ID) a->destination(newDestination);
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}
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_changes++;
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}
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}
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void AudioManager_impl::addAssignable(AudioManagerAssignable *a)
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{
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// ensure that this client is assigned properly
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AudioManagerClient_impl *client = findClient(a->ID());
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assert(client);
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if(client->destination().empty())
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{
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// TODO: more flexible default assignment policies - load autoRestoreID
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// related stuff here (or somewhere else)
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switch(client->direction())
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{
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case amPlay: client->destination("out_soundcard");
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break;
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case amRecord: client->destination("in_soundcard");
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break;
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}
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}
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assignable.push_back(a);
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a->destination(client->destination());
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}
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REGISTER_IMPLEMENTATION(AudioManagerClient_impl);
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REGISTER_IMPLEMENTATION(AudioManager_impl);
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REGISTER_IMPLEMENTATION(Synth_AMAN_PLAY_impl);
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REGISTER_IMPLEMENTATION(Synth_AMAN_RECORD_impl);
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}
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