What is Hardware Bitmap Caching?

[humayunl]

I just installed Pocket mvp on my XDA II and after installation it asked (something to the effect of) the following:

" ATI Hardware detected. To optimize performance, it is recommended that you disable hardware bitmap caching. Would you like to do that?"

I said yes and i guess it disabled hardware bitmap caching.

But now i'm wondering, what the hell hardware bitmap caching is :) if it is what it sounds like, I probably want to re-enable it. Problem is, I dont know how and where to do it.

Any ideas?

p.s. of course, anyone who knows what it exactly is, please enlighten me and everyone else. Thanks.

[dcs]

I suspect that its to do with hardware video acceleration. Its not unusual for media players to want to disable the hardware, thus allowing software to control the video rendering. I dont know how you re-enable it, but perhaps there is a setting in Pocket mvp. Leaving it enabled would not cause a problem though.

[merlin_uk]

The following registry keys will enable and disable hardware bitmap caching...

To disable hardware bitmap caching:
HKEY_LOCAL_MACHINE\System\GDI\Drivers\ATI\DisableD eviceBitmap = 1 (DWORD)

To enable hardware bitmap caching:
HKEY_LOCAL_MACHINE\System\GDI\Drivers\ATI\DisableD eviceBitmap = 0 (DWORD)