cocos2d 精灵重量有些奇怪
这是我的问题。空的 cocos2d 项目的大小为 3.38 MB（标准“Hello world”）。我通过“配置文件”->“分配套件”进行检查。 现在我有一个大小为 382x512 像素的 .png 图像。它将在 RAM 中扩展到 512x512（2 度）。我将此文件添加到项目中，如下所示：
CCSprite* sprite = [CCSprite spriteWithFile:@"mySprite.png"];
现在是最有趣的。 “mySprite.png”具有8888像素格式，即它必须占用512x512 = 0.5*0.5 = 0.25 MB * 4 = 1 MB（像素格式中的4 - 4字节）。我说得对吗？我想是的，但是当我检查项目重量有多少时，我发现该项目有5,54 MB，即“mySprite”已oppupied > > RAM 中有 2 MB。
我做错了什么？我该如何解决它？ :/ 谢谢。
Here is my question. Empty cocos2d project has weight 3.38 MB (standart "Hello world"). I check it by the Profile->Allocate Kit.
Now I have a .png image with a size 382x512 pixels. It will be extended to 512x512 in the RAM (2 degree). I add this file to project just like this:
CCSprite* sprite = [CCSprite spriteWithFile:@"mySprite.png"];
And now the most interesting. "mySprite.png" has a 8888 pixel format, i.e. it must occupie 512x512 = 0.5*0.5 = 0.25 MB * 4 = 1 MB (4 - 4 bytes from the pixel format). Am I right? I think so, but when I checked how much the project weight, I found that the project has the 5,54 MB, i.e. "mySprite" has oppupied > 2 MB in the RAM.
What am I doing wrong? And how can I fix it? :/
Thx.
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我记得在某处读到过这方面的内容。我浏览了 cocos2d 论坛并发现了这篇文章：
http://www.cocos2d-iphone.org/forum/topic/4510
你应该检查卡尔的解释，这对我来说似乎有意义：
I remember reading somewhere about this. I went through the cocos2d forums and found this post:
http://www.cocos2d-iphone.org/forum/topic/4510
You should check Karl's explanation which seems to make sense for me: