Add a few more QVector::reserve calls.

Found by heaptrack, all relevant for per-frame allocations.

Change-Id: I12ef71f6bd1bca2ca78f4bfbd295265d840b4232
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

3 files changed, 4 insertions, 0 deletions

diff --git a/src/core/jobs/qaspectjobmanager.cpp b/src/core/jobs/qaspectjobmanager.cpp
index b527e15e8..41e4b48eb 100644
--- a/src/core/jobs/qaspectjobmanager.cpp
+++ b/src/core/jobs/qaspectjobmanager.cpp
@@ -75,6 +75,7 @@ void QAspectJobManager::enqueueJobs(const QVector<QAspectJobPtr> &jobQueue)
     // Convert QJobs to Tasks
     QHash<QAspectJob *, AspectTaskRunnable *> tasksMap;
     QVector<RunnableInterface *> taskList;
+    taskList.reserve(jobQueue.size());
     Q_FOREACH (const QAspectJobPtr &job, jobQueue) {
         AspectTaskRunnable *task = new AspectTaskRunnable();
         task->m_job = job;
diff --git a/src/render/backend/renderer.cpp b/src/render/backend/renderer.cpp
index dbb91359c..3a1a8b1ca 100644
--- a/src/render/backend/renderer.cpp
+++ b/src/render/backend/renderer.cpp
@@ -958,6 +958,7 @@ Attribute *Renderer::updateBuffersAndAttributes(Geometry *geometry, RenderComman
     Attribute *indexAttribute = Q_NULLPTR;
     uint estimatedCount = 0;
 
+    m_dirtyAttributes.reserve(m_dirtyAttributes.size() + geometry->attributes().size());
     Q_FOREACH (const QNodeId &attributeId, geometry->attributes()) {
         // TO DO: Improvement we could store handles and use the non locking policy on the attributeManager
         Attribute *attribute = m_nodesManager->attributeManager()->lookupResource(attributeId);
diff --git a/src/render/backend/renderview.cpp b/src/render/backend/renderview.cpp
index 36ad2a33c..905eaa281 100644
--- a/src/render/backend/renderview.cpp
+++ b/src/render/backend/renderview.cpp
@@ -475,6 +475,7 @@ void RenderView::buildRenderCommands(Entity *node, const Plane *planes)
                 parametersFromMaterialEffectTechnique(&parameters, m_manager->parameterManager(), material, effect, technique);
 
                 // 1 RenderCommand per RenderPass pass on an Entity with a Mesh
+                m_commands.reserve(m_commands.size() + passes.size());
                 Q_FOREACH (RenderPass *pass, passes) {
 
                     // Add the RenderPass Parameters
@@ -508,6 +509,7 @@ void RenderView::buildRenderCommands(Entity *node, const Plane *planes)
                     // Replace with more sophisticated mechanisms later.
                     std::sort(m_lightSources.begin(), m_lightSources.end(), LightSourceCompare(node));
                     QVector<LightSource> activeLightSources; // NB! the total number of lights here may still exceed MAX_LIGHTS
+                    activeLightSources.reserve(m_lightSources.count());
                     int lightCount = 0;
                     for (int i = 0; i < m_lightSources.count() && lightCount < MAX_LIGHTS; ++i) {
                         activeLightSources.append(m_lightSources[i]);