Chris Bracken 0996764a76 Reuse texture cache in ios_external_texture_gl (flutter/engine#11524) ...

In current implementation, external texture data flow is a
producer-consumer model. When painting external texture, it always asks
registered external texture object to produce new CVPixelBuffer, then
transforms it to texture. `MarkNewFrameAvailable` function is ignored.
This commit changes the dataflow. Now ios_external_texture_gl caches
previous opengl texture, if no new frame are available, it do not
`copyPixelBuffer` method, just uses cached opengl texture to draw.

This is a re-land of flutter/engine#9806, which was previously reverted
in flutter/engine#11522.

2019-08-27 11:03:24 -07:00

..

src/flutter

Reuse texture cache in ios_external_texture_gl (flutter/engine#11524)

2019-08-27 11:03:24 -07:00