Re: [pygame] Pygame subsurface inherit surface flags?

[René Dudfield <renesd@xxxxxxxxx>]

Yeah, they should inherit the flags.

However... you should generally avoid HWSURFACE surfaces.  There are cases on some hardware and drivers where they actually get accelerated... but often they don't.

If your sprites don't have many colours, dropping the colour depth will give you a speedup (less memory bandwidth used).  Also RLE encoding can speed up drawing for some sprites.

All the best,

On Wed, Sep 18, 2013 at 9:11 PM, Lin Parkh <lparkh@xxxxxxxxxxx> wrote:

Hi,

 I've read the documentation but am still hazy. If have defined a surface with specific flags (in particular pygame.HWSURFACE) should a subsurface of that surface inherit the flags (i.e. is also a hardware accelerated surface(i.e. in video card memory) or do I need to do an explicit 'convert' with the flags called again? My impression when I call 'get_flags' on the subsurface is that it is NOT getting the parent flags... but wanted to confirm this is expected and therefore I have to do an explicit convert. 

  Thanks

p.s. my overall context is I have loaded a texture atlas from file. I have given hardware acceleration flag (HWSURFACE) I now want sprite imagery derived from the atlas (subsurface seem the simplest and most efficient way to achieve this) but I want it to retain the same flags (e.g. HWSURFACE).