diff options
Diffstat (limited to 'noatun/library/noatunarts/StereoEffectStack_impl.cpp')
| -rw-r--r-- | noatun/library/noatunarts/StereoEffectStack_impl.cpp | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/noatun/library/noatunarts/StereoEffectStack_impl.cpp b/noatun/library/noatunarts/StereoEffectStack_impl.cpp new file mode 100644 index 00000000..684d9694 --- /dev/null +++ b/noatun/library/noatunarts/StereoEffectStack_impl.cpp @@ -0,0 +1,253 @@ +#include "noatunarts.h" + +#include <artsflow.h> +#include <flowsystem.h> +#include <stdsynthmodule.h> +#include <debug.h> + +using namespace std; +using namespace Arts; + +namespace Noatun +{ +class StereoEffectStack_impl : public StereoEffectStack_skel, public StdSynthModule +{ + public: + long nextID; + + struct EffectEntry + { + StereoEffect effect; + string name; + long id; + }; + list<EffectEntry *> fx; + + void xconnect(bool connect, Object from, string fromP, Object to, string toP) + { + if(connect) + from._node()->connect(fromP,to._node(),toP); + else + from._node()->disconnect(fromP,to._node(),toP); + } + + void xvirtualize(bool connect, string myPort, Object impl, string implPort) + { + if(connect) + _node()->virtualize(myPort,impl._node(),implPort); + else + _node()->devirtualize(myPort,impl._node(),implPort); + } + + void internalconnect(bool c) + { + if(fx.empty()) + { + /* no effects - forward input through to output */ + xvirtualize(c,"outleft",Object::_from_base(this->_copy()),"inleft"); + xvirtualize(c,"outright",Object::_from_base(this->_copy()),"inright"); + } + else + { + list<EffectEntry *>::iterator ei; + EffectEntry *laste = 0; + + long count = 0; + for(ei = fx.begin(); ei != fx.end(); ei++, count++) + { + EffectEntry *e = *ei; + if(count == 0) /* top of chain? virtualize to effect */ + { + xvirtualize(c,"inleft",e->effect,"inleft"); + xvirtualize(c,"inright",e->effect,"inright"); + } + else /* not top? connect last effect to current effect */ + { + xconnect(c,laste->effect,"outleft",e->effect,"inleft"); + xconnect(c,laste->effect,"outright",e->effect,"inright"); + } + laste = e; + } + /* end: virtualize effect output to our output */ + xvirtualize(c,"outleft",laste->effect,"outleft"); + xvirtualize(c,"outright",laste->effect,"outright"); + } + } + void disconnect() { internalconnect(false); } + void reconnect() { internalconnect(true); } + + + long insertAfter(long after, StereoEffect effect, const string &name) + { + arts_return_val_if_fail(!effect.isNull(),0); + disconnect(); + + list<EffectEntry*>::iterator i = fx.begin(); + + bool found=false; + // seek through until we find 'after' + while(i != fx.end()) + if((*i)->id == after) + { + found = true; + break; + } + else + i++; + + long newId=0; + if (found) + { + i++; + EffectEntry *e = new EffectEntry; + e->effect=effect; + e->name=name; + e->id=nextID++; + fx.insert(i, e); + newId=e->id; + } + else + arts_warning("StereoEffectStack::insertAfter failed. " + "id %d not found?", after); + + reconnect(); + return newId; + + } + + void move(long after, long item) + { + arts_return_if_fail(item != 0); + disconnect(); + + list<EffectEntry*>::iterator iAfter=fx.begin(); + bool found=false; + if (after) + while(iAfter != fx.end()) + if((*iAfter)->id == after) + { + found = true; + iAfter++; + break; + } + else + iAfter++; + else + found=true; + + list<EffectEntry*>::iterator iItem=fx.begin(); + while (iItem != fx.end()) + if((*iItem)->id == item) + { + found &= true; + break; + } + else + iItem++; + if (!found) + arts_warning("StereoEffectStack::move couldn't find items"); + else + { + fx.insert(iAfter, *iItem); + fx.erase(iItem); + } + + reconnect(); + + } + + vector<long> *effectList() + { + vector<long> *items=new vector<long>; + for (list<EffectEntry*>::iterator i=fx.begin(); i!=fx.end();i++) + items->push_back((*i)->id); + return items; + } + + // as stolen from stereoeffectstack_impl.cc + StereoEffectStack_impl() : nextID(1) + { + reconnect(); + } + + ~StereoEffectStack_impl() + { + // disconnect remaining effects + EffectEntry *laste = 0; + list<EffectEntry *>::iterator ei; + + for(ei = fx.begin(); ei != fx.end(); ei++) + { + EffectEntry *e = *ei; + if(laste) + { + xconnect(false,laste->effect,"outleft",e->effect,"inleft"); + xconnect(false,laste->effect,"outright",e->effect,"inright"); + } + laste = e; + } + // delete remaining effect entries + for(ei = fx.begin(); ei != fx.end(); ei++) + delete *ei; + fx.clear(); + } + long insertTop(StereoEffect effect, const string& name) + { + arts_return_val_if_fail(!effect.isNull(),0); + + disconnect(); + EffectEntry *e = new EffectEntry(); + e->effect = effect; + e->name = name; + e->id = nextID++; + fx.push_front(e); + reconnect(); + return e->id; + } + long insertBottom(StereoEffect effect, const string& name) + { + arts_return_val_if_fail(!effect.isNull(),0); + + disconnect(); + EffectEntry *e = new EffectEntry(); + e->effect = effect; + e->name = name; + e->id = nextID++; + fx.push_back(e); + reconnect(); + return e->id; + } + + void remove(long ID) + { + arts_return_if_fail(ID != 0); + + bool found = false; + disconnect(); + list<EffectEntry *>::iterator ei = fx.begin(); + + while(ei != fx.end()) + { + if((*ei)->id == ID) { + found = true; + delete (*ei); + fx.erase(ei); + ei = fx.begin(); + } + else ei++; + } + if(!found) { + arts_warning("StereoEffectStack::remove failed. id %d not found?", + ID); + } + reconnect(); + } + + AutoSuspendState autoSuspend() { return asSuspend; } + +}; + +REGISTER_IMPLEMENTATION(StereoEffectStack_impl); + +} + |