BGE: fix memleaks.

SCA_RandomActuator: The random generator was shared between replicas and not deleted. Added ref counting between replicas to allow deletion at the end.
KX_Camera: The scenegraph node was not deleted for temporary cameras (ImageMirror and shadow), causing 500 bytes leak per frame and per shadow light.
KX_GameActuator: Global dictionary buffer was not deleted after saving.
KX_MotionState: The motion state for compound child was not deleted
KX_ReplaceMeshActuator: The mesh was unnecessarily converted for each actuator and not deleted, causing large memleak.

After these fix, YoFrankie runs without memleak.

1 files changed, 16 insertions, 1 deletions

diff --git a/source/gameengine/Ketsji/KX_Camera.cpp b/source/gameengine/Ketsji/KX_Camera.cpp
index 4bef4936813..144ff4ac883 100644
--- a/source/gameengine/Ketsji/KX_Camera.cpp
+++ b/source/gameengine/Ketsji/KX_Camera.cpp
@@ -42,6 +42,7 @@ KX_Camera::KX_Camera(void* sgReplicationInfo,
 					 SG_Callbacks callbacks,
 					 const RAS_CameraData& camdata,
 					 bool frustum_culling,
+					 bool delete_node,
 					 PyTypeObject *T)
 					:
 					KX_GameObject(sgReplicationInfo,callbacks,T),
@@ -50,7 +51,8 @@ KX_Camera::KX_Camera(void* sgReplicationInfo,
 					m_normalized(false),
 					m_frustum_culling(frustum_culling),
 					m_set_projection_matrix(false),
-					m_set_frustum_center(false)
+					m_set_frustum_center(false),
+					m_delete_node(delete_node)
 {
 	// setting a name would be nice...
 	m_name = "cam";
@@ -64,6 +66,12 @@ KX_Camera::KX_Camera(void* sgReplicationInfo,
 
 KX_Camera::~KX_Camera()
 {
+	if (m_delete_node && m_pSGNode)
+	{
+		// for shadow camera, avoids memleak
+		delete m_pSGNode;
+		m_pSGNode = NULL;
+	}
 }	
 
 
@@ -77,6 +85,13 @@ CValue*	KX_Camera::GetReplica()
 	return replica;
 }
 
+void KX_Camera::ProcessReplica()
+{
+	KX_GameObject::ProcessReplica();
+	// replicated camera are always registered in the scene
+	m_delete_node = false;
+}
+
 MT_Transform KX_Camera::GetWorldToCamera() const
 { 
 	MT_Transform camtrans;