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- From: Hawk@blanker.ruhr.de (Peter Elzner)
- Date: Fri, 8 Mar 96 21:47:00 +0100
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- Organization: neXus
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- X-ZC-Telefon: V+49-2374-8442
- X-ZC-F-TO: Jolyon Ralp
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- Subject: Re: RTG/rtg.library question
- Newsgroups: comp.sys.amiga.programmer
- Path: blanker.ruhr.de!BLANK1
- References: <601.6639T1270T97@luna.nl> <DnwA2z.83z@cix.compulink.co.uk>
-
- jralph@cix.compulink.co.uk (Jolyon Ralph) wrote:
-
- > > Hopefully someone can help me with the following problem. I have a
- > > planar screen that needs to be copied to an RTG screen. The source
- > > 'screen' is one plane deep and possibly located in fastmem.
- > >
- > > Using rtg.library sounds good to me because I will be able to test
- > > the result on my gfx-cardless 2000. But it doesn't support planar
- > > modes right?
- >
- > With 1 bitplane your data is both planar and chunky at the same time
- > (there's no difference)!
-
- Wrong.
-
- Most of the time the term "Chunky" is used, it means 8-bit chunky:
- 1 Byte (8 bit) represents one pixel of the screen wether or not you are
- actually using all 256 colors.
- Even monochrome screens (2 colors) are using 1 Byte-per-pixel on CyberGfx
- systems.
-
- Now back to the problem:
-
- If the source screen is a standard Amiga bitmap (planar & chipmem) and you
- have intigrated it into a bitmap-structure, you can call BltBitMap() to
- copy it to a rtg-bitmap allocated via AllocBitMap(). The CyberGfx-Emulation
- performs a p->c automatically if necessary.
-
- Peter Elzner [Hawk@blanker.ruhr.de]
- ---------------------< neXus support center >------------------------------
- Microsoft isn't the answer. Microsoft is the question and the answer is NO
-