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- Path: sparky!uunet!cbmvax!chrisg
- From: chrisg@cbmvax.commodore.com (Chris Green)
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: system-friendly screen-hack ?
- Message-ID: <37092@cbmvax.commodore.com>
- Date: 17 Nov 92 12:50:58 GMT
- References: <1992Nov16.192637.29578@ifi.uio.no>
- Reply-To: chrisg@cbmvax.commodore.com (Chris Green)
- Organization: Commodore, West Chester, PA
- Lines: 23
-
- In article <1992Nov16.192637.29578@ifi.uio.no> christim@ifi.uio.no (Christian Moen) writes:
- >I need to write to a screen blindingly fast, but want to do this
- >in a system-friendly manner. I've thought about grabbing the
- >bitplane-pointers in the screen-structure, but is this really
- >system-friendly ? What about future DIG/RTG ?
-
- NEVER, NEVER use the imbedded Screen BitMap structure. Use
- Screen->RastPort->BitMap. Under DIG, or on systems with more than
- 8 bitplanes, the copy of the bitmap can't be valid.
-
- >
- >I've also thought about using the graphics.library BltBitMap function,
- >put I think I'm better off not using the blitter.
-
- BltBitMap will work fine under DIG/RTG.
- --
- *-------------------------------------------*---------------------------*
- |Chris Green - Graphics Software Engineer - chrisg@commodore.COM f
- | Commodore-Amiga - uunet!cbmvax!chrisg n
- |My opinions are my own, and do not - icantforgettheimpression o
- |necessarily represent those of my employer.- youmadeyouleftaholeinthe r
- |"A screaming comes across the sky..." - backofmyhead d
- *-------------------------------------------*---------------------------*
-