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LiuJiLong 5dfdb4ac99 Reuse texture cache in ios_external_texture_gl. (flutter/engine#9806) 
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.
2019-08-27 02:00:09 -07:00
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src/flutter
Reuse texture cache in ios_external_texture_gl. (flutter/engine#9806)
2019-08-27 02:00:09 -07:00