Rml::Core::ReleaseCompiledGeometries() is not found

[ghost]

In the Android environment, OpenGL resources are automatically destroyed when the application is put on standby. I want to rebuild the resources. What should I do?

// Rml::Core::ReleaseCompiledGeometries();　not found
Rml::Core::ReleaseTextures();

[mikke89]

Good question. This was removed because it was a heavy resource hog. I figured this could be implemented on the user side, but now I realize the user would probably have to store all the geometry data to be able to do this, which is not very practical.

I will look into re-adding this feature and see if we can do something about the performance impact.

[mikke89]

I did some measurements to figure out the performance impact with different approaches for the geometry database. Using a std::unordered_set the fps drop was quite noticable.

Here are the total CPU time comparison for inserting to and erasing from the geometry database:

robin_hood::unordered_flat_set
Insert: 1.19%
Erase:  0.70%

std::unordered_set
Insert: 3.79%
Erase:  2.53%

std::set
Insert: 7.52%
Erase:  8.79%

vector with freelist (64bit handle)
Insert: 0,41%
Erase:  0,20%

vector with freelist (32bit handle)
Insert: 0,33%
Erase:  0,17%

I knew std::unordered* was slow, but that is quite a crazy difference compared to the robin_hood set.

Anyway, I think I'll go ahead with the freelist approach, I think the cost is justifiable. Just need to do some more testing before pushing to master.

[mikke89]

Just added the feature back. Please let me know how it works for you :)

[ghost]

Thank you! The response is quick and very helpful. I will test it by incorporating it into the application. I'm offering you an app that depends heavily on RMLUI and lua, so I may order more in the future, but thank you. :)
https://play.google.com/store/apps/details?id=net.t_denrai.mmdagent&hl=en

[ghost]

I tested it.
Geometry is no longer a problem, but there seems to be a problem with the font texture.
New fonts are displayed correctly, but existing fonts
Strings are displayed in black.

[mikke89]

That is great! Let me know if you want me to add it to the gallery :)

I did some investigation, and it looks like the font textures were not released with the call to Core::ReleaseTextures().

I tried to make a fix for it. Hope it works better now!

[ghost]

Thank you for your prompt reply!
The application has been successfully restored, so I uploaded it immediately.
libRocket is grateful for taking over as the update has stopped.

[mikke89]

No problem, I'm happy it works for you :)

[mikke89]

I consider this solved then, let me know otherwise.