BGRABitmap on Linux: can TextOut be faster than TCanvas?

[AlexTP]

I want to optimize CudaText on Linux/BSD: make font rendering via BGRABitmap.
for this, I must have BGRABitmap's TextOut much faster than TCanvas.ExtTextOut. at least 2 times faster.

but according to this issue, I cannot get it!
https://github.com/bgrabitmap/bgrabitmap/issues/317

how to get the goal?

[Fred vS]

Hello  Alex.

I try to understand why and I am confused by a previous post of you :
https://forum.lazarus.freepascal.org/index.php?topic=59069.0

There gtk2 is faster. 

Maybe a optimization in BGRAGtkBitmap.pas  could be done (Pango/Cairo usage).
But for this, Circular advice is the most precious.

[circular]

Hi folks,

I guess that in theory it would be possible to optimize for Linux. Though I don't know much of the inner workings of the system. But maybe it could be optimized by direct calls to Linux libraries and maybe by preserving an image buffer to render the text mask.