| Re: [AD] Fw: Acquire/Release speed issue |
[ Thread Index |
Date Index
| More lists.liballeg.org/allegro-developers Archives
]
> The current OSX show_video_bitmap() hook simply copies another video
> bitmap (created using NewGWorld, which in Quickdraw should create a
> surface using VRAM or AGP accessible memory, but as I discovered later
> it just creates it out of normal RAM) onto the screen using CopyBits
> (which in Quickdraw should be accelerated).
> As I explained though, this is just an hack to emulate page flipping,
> and without acceleration anyway.
>
> What should I do? Should I remove the whole video bitmaps support from
> OSX, as it's not really following the docs?
No, I think you should keep it. After all, the windowed drivers also emulate
page flipping. But is it really not possible to return the screen for the
first video bitmap allocated with the same dimensions?
--
Eric Botcazou