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#include <QtDebug>
#include "effects/effect.h"
#include "effects/effectprocessor.h"
#include "effects/effectsmanager.h"
#include "effects/effectxmlelements.h"
#include "engine/effects/engineeffectchain.h"
#include "engine/effects/engineeffect.h"
#include "util/xml.h"
Effect::Effect(EffectsManager* pEffectsManager,
EffectManifestPointer pManifest,
EffectInstantiatorPointer pInstantiator)
: QObject(), // no parent
m_pEffectsManager(pEffectsManager),
m_pManifest(pManifest),
m_pInstantiator(pInstantiator),
m_pEngineEffect(NULL),
m_bAddedToEngine(false),
m_bEnabled(false) {
for (const auto& pManifestParameter: m_pManifest->parameters()) {
EffectParameter* pParameter = new EffectParameter(
this, pEffectsManager, m_parameters.size(), pManifestParameter);
m_parameters.append(pParameter);
if (m_parametersById.contains(pParameter->id())) {
qWarning() << debugString() << "WARNING: Loaded EffectManifest that had parameters with duplicate IDs. Dropping one of them.";
}
m_parametersById[pParameter->id()] = pParameter;
}
//qDebug() << debugString() << "created" << this;
}
Effect::~Effect() {
//qDebug() << debugString() << "destroyed" << this;
m_parametersById.clear();
for (int i = 0; i < m_parameters.size(); ++i) {
EffectParameter* pParameter = m_parameters.at(i);
m_parameters[i] = NULL;
delete pParameter;
}
}
EffectState* Effect::createState(const mixxx::EngineParameters& bufferParameters) {
return m_pEngineEffect->createState(bufferParameters);
}
void Effect::addToEngine(EngineEffectChain* pChain, int iIndex,
const QSet<ChannelHandleAndGroup>& activeInputChannels) {
VERIFY_OR_DEBUG_ASSERT(pChain) {
return;
}
VERIFY_OR_DEBUG_ASSERT(m_pEngineEffect == nullptr) {
return;
}
VERIFY_OR_DEBUG_ASSERT(!m_bAddedToEngine) {
return;
}
m_pEngineEffect = new EngineEffect(m_pManifest,
activeInputChannels,
m_pEffectsManager,
m_pInstantiator);
EffectsRequest* request = new EffectsRequest();
request->type = EffectsRequest::ADD_EFFECT_TO_CHAIN;
request->pTargetChain = pChain;
request->AddEffectToChain.pEffect = m_pEngineEffect;
request->AddEffectToChain.iIndex = iIndex;
m_pEffectsManager->writeRequest(request);
m_bAddedToEngine = true;
}
void Effect::removeFromEngine(EngineEffectChain* pChain, int iIndex) {
VERIFY_OR_DEBUG_ASSERT(pChain) {
return;
}
VERIFY_OR_DEBUG_ASSERT(m_pEngineEffect != nullptr) {
return;
}
VERIFY_OR_DEBUG_ASSERT(m_bAddedToEngine) {
return;
}
EffectsRequest* request = new EffectsRequest();
request->type = EffectsRequest::REMOVE_EFFECT_FROM_CHAIN;
request->pTargetChain = pChain;
request->RemoveEffectFromChain.pEffect = m_pEngineEffect;
request->RemoveEffectFromChain.iIndex = iIndex;
m_pEffectsManager->writeRequest(request);
m_pEngineEffect = NULL;
m_bAddedToEngine = false;
}
void Effect::updateEngineState() {
if (!m_pEngineEffect) {
return;
}
sendParameterUpdate();
foreach (EffectParameter* pParameter, m_parameters) {
pParameter->updateEngineState();
}
}
EngineEffect* Effect::getEngineEffect() {
return m_pEngineEffect;
}
EffectManifestPointer Effect::getManifest() const {
return m_pManifest;
}
void Effect::setEnabled(bool enabled) {
if (enabled != m_bEnabled) {
m_bEnabled = enabled;
updateEngineState();
emit(enabledChanged(m_bEnabled));
}
}
bool Effect::enabled() const {
return m_bEnabled;
}
void Effect::sendParameterUpdate() {
if (!m_pEngineEffect) {
return;
}
EffectsRequest* pRequest = new EffectsRequest();
pRequest->type = EffectsRequest::SET_EFFECT_PARAMETERS;
pRequest->pTargetEffect = m_pEngineEffect;
pRequest->SetEffectParameters.enabled = m_bEnabled;
m_pEffectsManager->writeRequest(pRequest);
}
unsigned int Effect::numKnobParameters() const {
unsigned int num = 0;
foreach(const EffectParameter* parameter, m_parameters) {
if (parameter->manifest()->controlHint() !=
EffectManifestParameter::ControlHint::TOGGLE_STEPPING) {
++num;
}
}
return num;
}
unsigned int Effect::numButtonParameters() const {
unsigned int num = 0;
foreach(const EffectParameter* parameter, m_parameters) {
if (parameter->manifest()->controlHint() ==
EffectManifestParameter::ControlHint::TOGGLE_STEPPING) {
++num;
}
}
return num;
}
EffectParameter* Effect::getParameterById(const QString& id) const {
EffectParameter* pParameter = m_parametersById.value(id, NULL);
if (pParameter == NULL) {
qWarning() << debugString() << "getParameterById"
<< "WARNING: parameter for id does not exist:" << id;
}
return pParameter;
}
// static
bool Effect::isButtonParameter(EffectParameter* parameter) {
return parameter->manifest()->controlHint() ==
EffectManifestParameter::ControlHint::TOGGLE_STEPPING;
}
// static
bool Effect::isKnobParameter(EffectParameter* parameter) {
return !isButtonParameter(parameter);
}
EffectParameter* Effect::getFilteredParameterForSlot(ParameterFilterFnc filterFnc,
unsigned int slotNumber) {
// It's normal to ask for a parameter that doesn't exist. Callers must check
// for NULL.
unsigned int num = 0;
for (const auto& parameter: m_parameters) {
if (parameter->manifest()->showInParameterSlot() && filterFnc(parameter)) {
if(num == slotNumber) {
return parameter;
}
++num;
}
}
return NULL;
}
EffectParameter* Effect::getKnobParameterForSlot(unsigned int slotNumber) {
return getFilteredParameterForSlot(isKnobParameter, slotNumber);
}
EffectParameter* Effect::getButtonParameterForSlot(unsigned int slotNumber) {
return getFilteredParameterForSlot(isButtonParameter, slotNumber);
}
// static
EffectPointer Effect::createFromXml(EffectsManager* pEffectsManager,
const QDomElement& element) {
// Empty <Effect/> elements are used to preserve chain order
// when there are empty slots at the beginning of the chain.
if (!element.hasChildNodes()) {
return EffectPointer();
}
QString effectId = XmlParse::selectNodeQString(element, EffectXml::EffectId);
EffectPointer pEffect = pEffectsManager->instantiateEffect(effectId);
return pEffect;
}
double Effect::getMetaknobDefault() {
return m_pManifest->metaknobDefault();
}
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