WorkflowRenderer: Initialize the effects at the right time.

Fixes a crash when starting the playback.

src/EffectsEngine/EffectsEngine.cpp

@@ -179,3 +179,16 @@ EffectsEngine::saveEffects( const EffectList &effects, QXmlStreamWriter &project
     }
     project.writeEndElement();
 }
+
+void
+EffectsEngine::initEffects( const EffectList &effects, quint32 width, quint32 height )
+{
+    EffectsEngine::EffectList::const_iterator   it = effects.begin();
+    EffectsEngine::EffectList::const_iterator   ite = effects.end();
+
+    while ( it != ite )
+    {
+        (*it)->effect->init( width, height );
+        ++it;
+    }
+}

src/EffectsEngine/EffectsEngine.h

@@ -56,6 +56,7 @@ class   EffectsEngine : public QObject, public Singleton<EffectsEngine>
         static void applyEffects( const EffectList &effects,
                                   Workflow::Frame *frame, qint64 currentFrame );
         static void saveEffects( const EffectList &effects, QXmlStreamWriter &project );
+        static void initEffects( const EffectList &effects, quint32 width, quint32 height );
 
     private:
         EffectsEngine();

src/Renderer/WorkflowRenderer.cpp

@@ -117,6 +117,8 @@ WorkflowRenderer::setupRenderer( quint32 width, quint32 height, double fps )
     sprintf( buffer, ":imem-data=%"PRId64, (intptr_t)m_esHandler );
     m_media->addOption( buffer );
     m_media->addOption( ":text-renderer dummy" );
+
+    EffectsEngine::initEffects( m_effects, width, height );
 }
 
 int
@@ -388,7 +390,7 @@ void
 WorkflowRenderer::appendEffect( Effect *effect, qint64 start, qint64 end )
 {
     EffectInstance  *effectInstance = effect->createInstance();
-    effectInstance->init( m_width, m_height );
+    qDebug() << "width:" << m_width << m_height;
     QWriteLocker    lock( m_effectsLock );
     m_effects.push_back( new EffectsEngine::EffectHelper( effectInstance, start, end ) );
 }