1.  Reference Count and AutoReleasePool
 Texture Cache
 Optimize memory in game.

2.  Reference Count : is an old approach of
memory management in C/C++ projects.
 Example :

3.  AutoReleasePool:
 CCAutoreleasePool can not be
NESTED.
 CCAutoreleasePool cannot be used in
multi-thread.

4.  A *a = new A(); a->autorelease() .
 From here you must not interested
release/delete this object .
 Autorelease pool will delete/release object
,but when?

5.  //in init scene
m_pNode = CCNode::create();

m_pNode = new CCNode();
m_Node->autorelease();
 //1 funciton orther in frame orther
m_pNode->setPosition(ccp(0, 0));

6. class A
{
CCNode *m_pNode;
public:
// pointer dangling!!
~A() { SAFE_DELETE(m_pNode); };
void setNode(CCNode *pNode)
{ m_pNode = pNode; };
}
 What happen if at time call ~A(), pNode
deleted?

7. class A
{
CCNode *m_pNode;
public:
~A() { SAFE_RELEASE(m_pNode); };// OK
now
void setNode(CCNode *pNode)
{
m_pNode = pNode;
pNode->retain();
};
}

8.  Textures are cached which can later be used
for drawing.

9.  CCTextureCache
 CCSpriteFrameCache

10.  The CCSpriteFrameCache singleton is a cache
of all sprite frames. Using a spritesheet and
its associated xml file we can load multiple
sprites into the cache. From here we can
create CCSprite objects with sprites from the
cache.

11.  Avoid loading PNG/JPG Textures.
 Load textures from largest to smallest.
 Use .pvr.czz file format.
 Use particles.

12.  Avoid loading PNG/JPG Textures :
In loading texture size 2M .you have to 4M
memory.

13. Load textures from largest to smallest :
 If you must load 4 file (4M) and 1 file(16M)
 If load 4 file(4M) before load file 16 M : max-
memory use : 4 x 4 + 16 x 2 = 48 M.
 If load 4 file(4M) after loaded file 16M : max-
memory use : 16 + 4 x3 + 4 x 2 = 36 M.