Cleanup and optimize particles

Minor improvements while going through the particles sources:
- Reduce getShadowDatum() calls
- Remove unused m_lastLevel, reloadColor(), m_available
  m_velocityFromMovement, maximumAlive, m_pending, m_lastT,
  m_last_last_last_emitter, modelIndex
- Color4ub structs can be assigned directly
- Fix pri for shaders_ng files
- Other minor refactoring

Task-number: QTBUG-88124
Change-Id: I5768fed9f4b6379a698849c23436fa38169833a4
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>

1 files changed, 9 insertions, 5 deletions

diff --git a/src/particles/qquickparticlesystem_p.h b/src/particles/qquickparticlesystem_p.h
index 0269b8a583..8b14b74131 100644
--- a/src/particles/qquickparticlesystem_p.h
+++ b/src/particles/qquickparticlesystem_p.h
@@ -200,10 +200,12 @@ public:
     QQuickParticleGroupData(const QString &name, QQuickParticleSystem* sys);
     ~QQuickParticleGroupData();
 
-    int size()
-    { return m_size; }
+    int size() const
+    {
+        return m_size;
+    }
 
-    QString name();
+    QString name() const;
 
     void setSize(int newSize);
 
@@ -321,7 +323,6 @@ public:
 
     //Used by ItemParticle
     QQuickItem* delegate;
-    int modelIndex;
     //Used by custom affectors
     float update;
 
@@ -359,7 +360,10 @@ public:
         return m_running;
     }
 
-    int count(){ return particleCount; }
+    int count() const
+    {
+        return particleCount;
+    }
 
     static const int maxLife = 600000;