你如何从一个NDK获得表面纹理ANativeWindow [英] How do you get ANativeWindow from a SurfaceTexture in the NDK

问题描述

我有一些OpenGL ES的code已被渲染到 GLSurfaceView ，和我目前正在修改它与任何<$ C $工作C> SurfaceView 和 TextureView 。

I've got some OpenGL ES code that has been rendering to a GLSurfaceView, and I'm currently modifying it to work with either SurfaceView and TextureView.

我需要从内外我的祖国code的共同点是： ANativeWindow

The common element I need from both inside my native code is: ANativeWindow.

对于 SurfaceView 我通过传递表面来得到它：

For the SurfaceView I got it by passing Surface to:

m_jwindow = ANativeWindow_fromSurface(env, surface);

有关 TextureView ，我把表面纹理，并在14 API，我可以用这样的：

For TextureView, I take SurfaceTexture, and in API 14 I can use this:

m_jwindow = ANativeWindow_fromSurfaceTexture(env, surface);

不过，该功能辗转于杰利贝恩。这让我想知道，我怎么能得到 ANativeWindow 从表面纹理在API 16 +？

However, that function was removed in Jellybean. Which leaves me wondering, how can I get ANativeWindow from a SurfaceTexture in API 16+?

推荐答案

您需要做的API 16+什么是创建一个表面对象，传递的表面纹理作为参数传递给<一个href="http://developer.android.com/reference/android/view/Surface.html#Surface%28android.graphics.SurfaceTexture%29"相对=nofollow>构造（这是在API 14中引入）。传递曲面到 ANativeWindow_fromSurface（）和往常一样。

What you need to do in API 16+ is create a Surface object, passing the SurfaceTexture as an argument to the constructor (which was introduced in API 14). Pass that Surface to ANativeWindow_fromSurface() as usual.

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