如何从 NDK 中的 SurfaceTexture 获取 ANativeWindow [英] How do you get ANativeWindow from a SurfaceTexture in the NDK

问题描述

我有一些 OpenGL ES 代码已经渲染到 GLSurfaceView，我目前正在修改它以使用 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.

我在本机代码中需要的共同元素是:ANativeWindow.

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

对于 SurfaceView，我通过将 Surface 传递给:

For the SurfaceView I got it by passing Surface to:

m_jwindow = ANativeWindow_fromSurface(env, surface);

对于TextureView，我采用SurfaceTexture，在API 14中我可以使用这个:

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

m_jwindow = ANativeWindow_fromSurfaceTexture(env, surface);

但是，Jellybean 中删除了该功能.这让我想知道，如何从 API 16+ 中的 SurfaceTexture 获取 ANativeWindow?

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

您需要在 API 16+ 中创建一个 Surface 对象，将 SurfaceTexture 作为参数传递给 构造函数(在 API 14 中引入).像往常一样将该 Surface 传递给 ANativeWindow_fromSurface().

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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