iPhone：当上下文消失时，我需要进行多少 OpenGL 清理？
我在 iPhone 应用程序中的几个视图恰好使用了独立的 openGL 上下文。它们不一定是长寿的，因此它们会在该过程发生之前消失。它们每个都有一些纹理。
-releaseEAGLContext 是否会导致所有 GL 状态为我清理？或者我是否因找不到调用glDeleteTextures的地方而泄漏纹理等？
谢谢。
I several views in an iPhone app which happen to use independent openGL contexts. They are not necessarily long-lived so they go away before the process does. And they have a couple textures in each.
Does -releaseing the EAGLContext cause all that GL state to get cleaned up for me? Or am I leaking textures etc by not finding a place to call glDeleteTextures from?
Thanks.
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当对该共享组的最后一个引用被释放时（通常通过销毁所有共享上下文），与该共享组关联的所有资源都将被销毁。
请务必小心：当您将上下文设置为线程的当前上下文时，该上下文将被视为引用。上下文在与它可能绑定到的所有线程分离之前不会被删除。
All resources associated with a sharegroup are destroyed, when the last reference to that sharegroup is released (usually by destroying all of the shared contexts).
Do be careful: when you make a context current for a thread, that counts as a reference. A context will not be deleted until it is detached from all threads that it may have been bound to.