[New_Feature_Requirement] Async texture uploading for Stage3D

Here is the feature request: Feature#3828999 - [New_Feature_Requirement] Async texture uploading for Stage3D

Problem: we developing a lot of applications with many high resolution resources and we can't preload all content because GPU memory very limited.

Only way - dynamic resources managing. But uploading textures very expensive operations with current Texture.uploadFromBitmapData and Texture.uploadFromByteArray methods. Every upload function call with 2048*2048 BitmapData causes 50-100 ms UI freeze (even on desktop platforms!). It's not acceptable - we need smooth media galleries, UI and so on.

We need async BitmapData uploading to Texture that not kill application performance. Please implement this feature as soon as possible. We need it both mobile and desktop platforms.

I'd like to ask everyone who interested in it to take a minute and vote for implementing this feature.

Thanks.