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- From: cherborth@semprini.tdkcs.waterloo.on.ca (Chris Herborth)
- Newsgroups: comp.sys.atari.st
- Subject: Re: Hexmines v1.2
- Message-ID: <H.ea.dl0lu3NFGmA@semprini.tdkcs.waterloo.on.ca>
- Date: 25 Jan 93 16:50:58 GMT
- References: <H.ea.kVX8Hq&7qfI@semprini.tdkcs.waterloo.on.ca>
- <8698@laas.laas.fr>
- Reply-To: cherborth@semprini.tdkcs.waterloo.on.ca
- Organization: InterZONE Design
- Lines: 50
- X-Software: HERMES GUS 1.04 Rev. Sep 5 1992
-
- In <8698@laas.laas.fr>, Jean-Etienne Doucet writes:
- > Quite a long time ago, I've asked -- on the net -- if there were
- > some ways to simulate the GET/PUT GFA Basic instructions in C ?
- > (Preferably HSC)
-
- Nobody answered?!? Sheesh! We all must've been in a flame war or
- something... ;-)
-
- > So what ? I stick to GFA Basic for writing games and only use
- > C for writing programs with no (or little) graphics
-
- IMHO, GFA BASIC is nasty and hellishly incompatible... Hopefully I
- won't start another flame war by saying that.
-
- > For people who don't know what GET and PUT are:
- > GET x1,y1,x2,y2,CH$
- > copy the screen portion given by x1,x2,y1,y2 into the string CH$
- > PUT x,y,CH$
- > copy back the screen portion in CH$ as a rectangle with x,y being
- > the upper left point coordinates.
-
- Have you done any VDI programming? It needs a little bit of setting up,
- but not too much. And it'll generally work in any resolution...
-
- vro_cpyfm() is the function you're after:
-
- Copy Raster, Opaque
-
- int vid_handle, mode, points[8];
- struct fdbstr
- {
- int *fd_addr; /* ptr to image data area [just a buffer] */
- int fd_w; /* width in pixels */
- int fd_h; /* height in pixels */
- int fd_wdwidth; /* image width in words (ie, 16-bits) */
- int fd_stand; /* standard format or ST format flag */
- int fd_nplanes; /* number of colour bit planes */
- int fd_r1, fd_r2, /* reserved for future use */
- fd_r3;
- } src, dst;
-
- vro_cpyfm( vdi_handle, mode, points, &src, &dst );
-
- For more info, grab a VDI book, or beg someone for sample code... ;-)
- I'd type the rest of the manual page, but it's quite long. Useful mode
- values are 3 (replace dst with src), 6 (XOR dst with src).
- --
- -------------------========================================-------------------
- Chris Herborth
- cherborth@semprini.tdkcs.waterloo.on.ca
-