* Re: [9fans] Pico (again) @ 2002-07-18 14:14 anothy 2002-07-18 18:07 ` Fariborz (Skip) Tavakkolian ` (2 more replies) 0 siblings, 3 replies; 14+ messages in thread From: anothy @ 2002-07-18 14:14 UTC (permalink / raw) To: 9fans just out of curiosity, i grabbed the popi stuff from holzmann's page and gave it a shot. popi, the portable pico, popi, compiles fine out of the box, although it runs into the buffered IO issue common to most unix command line programs on Plan 9. i've not checked to see that it does sensable things with images, though, mainly because i don't know what to do with popi's output. the compiled version of pico available from holzmann's page doesn't compile. i put no effort into figuring out why. the notes on holzmann's page are not encouraging in this regard. i was not able to pull the version of pico described in Rakitzis' message, so it's untested. anyone got anything to deal with pico (v10 picfile(5)) images? ア ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [9fans] Pico (again) 2002-07-18 14:14 [9fans] Pico (again) anothy @ 2002-07-18 18:07 ` Fariborz (Skip) Tavakkolian 2002-07-18 23:07 ` Micah Stetson 2002-07-29 15:57 ` Douglas A. Gwyn 2 siblings, 0 replies; 14+ messages in thread From: Fariborz (Skip) Tavakkolian @ 2002-07-18 18:07 UTC (permalink / raw) To: 9fans, 9fans [-- Attachment #1: Type: text/plain, Size: 1174 bytes --] I've attached my cheesy C version of display.bas that is in the package. You can use it view the faces. It uses libXg that came with 9libs-1.0, so the graphics model is understandable by a human being. I've got popi running on Plan9 also. I guess I should have ask the more direct question: Why isn't a tool like pico available now? not chic anymore? At 10:14 AM 7/18/2002 -0400, anothy@cosym.net wrote: >just out of curiosity, i grabbed the popi stuff from holzmann's >page and gave it a shot. popi, the portable pico, popi, compiles >fine out of the box, although it runs into the buffered IO issue >common to most unix command line programs on Plan 9. i've not >checked to see that it does sensable things with images, though, >mainly because i don't know what to do with popi's output. > >the compiled version of pico available from holzmann's page >doesn't compile. i put no effort into figuring out why. the notes >on holzmann's page are not encouraging in this regard. > >i was not able to pull the version of pico described in Rakitzis' >message, so it's untested. > >anyone got anything to deal with pico (v10 picfile(5)) images? >㢠[-- Attachment #2: disp.c --] [-- Type: text/plain, Size: 1014 bytes --] #include <u.h> #include <libc.h> #include <libg.h> #define res 8 int threshold[res][res] = { { 0,128,32,160,8,136,40,168}, { 192,64,224,96,200,72,232,104 }, { 48,176,16,144,56,184,24,152 }, { 240,112,208,80,248,120,216,88 }, { 12,140,44,172,4,132,36,164 }, { 204,76,236,108,196,68,228,100 }, { 60,188,28,156,52,180,20,148 }, { 252,124,220,92,244,116,212,84 } }; main(int ac, char **av) { FILE *infile; Point p; Event ev; register int x, y; if (ac < 2) { fprintf(stderr, "usage: %s filename\n", *av); exit(1); } if (! (infile = fopen(*(av+1), "r"))) { fprintf(stderr, "can't open %s\n", *(av+1)); exit(1); } ac--; av++; xtbinit(0,0, &ac, av, 0); einit(Ekeyboard|Emouse); for (x = 0; x < 248; x++) for (y = 0; y < 248; y++) { int c; p = add(screen.r.min, Pt(y,x)); if ((c = getc(infile)) == EOF) break; if (c <= threshold[x%res][y%res]) point(&screen, p, ~0, S); } while(event(&ev) != Ekeyboard) continue; exit(0); } void ereshaped(Rectangle r) { } ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [9fans] Pico (again) 2002-07-18 14:14 [9fans] Pico (again) anothy 2002-07-18 18:07 ` Fariborz (Skip) Tavakkolian @ 2002-07-18 23:07 ` Micah Stetson 2002-07-29 15:57 ` Douglas A. Gwyn 2 siblings, 0 replies; 14+ messages in thread From: Micah Stetson @ 2002-07-18 23:07 UTC (permalink / raw) To: 9fans [-- Attachment #1: Type: text/plain, Size: 358 bytes --] > common to most unix command line programs on Plan 9. i've not > checked to see that it does sensable things with images, though, > mainly because i don't know what to do with popi's output. Here is a program that takes popi's output and makes a plan9 image from it. It isn't anything amazing, but maybe it will save you a few seconds. Micah [-- Attachment #2.1: Type: text/plain, Size: 279 bytes --] The following attachment had content that we can't prove to be harmless. To avoid possible automatic execution, we changed the content headers. The original header was: Content-Type: text/x-csrc; charset=us-ascii Content-Disposition: attachment; filename="popi2image.c" [-- Attachment #2.2: popi2image.c.suspect --] [-- Type: application/octet-stream, Size: 586 bytes --] #include <u.h> #include <libc.h> #include <draw.h> #include <memdraw.h> #define DEF_X 248 /* image width */ #define DEF_Y 248 /* image height */ void main(void) { int i; uchar *pix; Memimage *img; memimageinit(); pix = (uchar*)malloc(DEF_X * DEF_Y); for (i = 0; i < DEF_Y; i++) if(readn(0, pix+i*DEF_X, DEF_X) != DEF_X) { fprint(2, "popi2image: read error\n", i); exits("read"); } img = allocmemimage(Rect(0,0,DEF_X,DEF_Y), GREY8); loadmemimage(img, Rect(0,0,DEF_X,DEF_Y), pix, DEF_X*DEF_Y); writememimage(1, img); exits(0); } ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [9fans] Pico (again) 2002-07-18 14:14 [9fans] Pico (again) anothy 2002-07-18 18:07 ` Fariborz (Skip) Tavakkolian 2002-07-18 23:07 ` Micah Stetson @ 2002-07-29 15:57 ` Douglas A. Gwyn 2 siblings, 0 replies; 14+ messages in thread From: Douglas A. Gwyn @ 2002-07-29 15:57 UTC (permalink / raw) To: 9fans anothy@cosym.net wrote: > anyone got anything to deal with pico (v10 picfile(5)) images? Somewhere in my archives I have 5620/630 code. IIRC, it is a simple format similar to .BMP and so it should be easy to reformat it into any frame-buffer device. ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [9fans] Pico (again)
@ 2002-07-26 6:03 Byron Rakitzis
0 siblings, 0 replies; 14+ messages in thread
From: Byron Rakitzis @ 2002-07-26 6:03 UTC (permalink / raw)
To: 9fans, steve.simon
>Hi,
>
>Pico was a JIT compiler for expressions mapping one image onto another.
>The compiler was written only for the VAX.
>
>There are several versions available in c.s.u starting with a cut down,
>interpreted
>version called popi released by Gerard Holzman later versions had JIT compilers
>added by Byron Rakitzis of Unix RC fame.
Hm... I did code generators for SPARC and MIPS roughly 10 years ago.
Later on I added a code generator for Alpha which was adapted from
the MIPS code, but which became much more exciting ultimately because
I added floating point, polar coordinates, trig functions, etc.
I did make a quick Java JIT for x86 in 1995 which I bolted into the
then brand-new Sun interpreted runtime. I imagine it would be possible
to adapt those macros to make an x86 pico (for what else do people use
these days but x86s??), but I haven't spent time on pico in years
and years.
I hardly participate in 9fans and I don't know where to post the code
these days. If someone would like a bundle of my pico directory with
the three above-mentioned code generators (SPARC/MIPS/Alpha), let me know.
Byron.
^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [9fans] Pico (again) @ 2002-07-18 20:04 Dennis Ritchie 2002-07-19 8:19 ` ggm 2002-07-29 15:57 ` Douglas A. Gwyn 0 siblings, 2 replies; 14+ messages in thread From: Dennis Ritchie @ 2002-07-18 20:04 UTC (permalink / raw) To: 9fans I retrieved some of the pico-processed images that were in the 10th edition manual: http://www.cs.bell-labs.com/10thEdMan/v2pix.html Dennis ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [9fans] Pico (again) 2002-07-18 20:04 Dennis Ritchie @ 2002-07-19 8:19 ` ggm 2002-07-29 15:57 ` Douglas A. Gwyn 1 sibling, 0 replies; 14+ messages in thread From: ggm @ 2002-07-19 8:19 UTC (permalink / raw) To: 9fans I always used to imagine Algorists gathering in a dusty college chamber, glasses of Gluhwine warming in their hands (or alternately snifters of brandy) as they discuss the relative merits of non-terminating iterative functions as sources of near-random data. > I retrieved some of the pico-processed images that > were in the 10th edition manual: > > http://www.cs.bell-labs.com/10thEdMan/v2pix.html > > > Dennis But now I've been reminded of these images I realise it was probably more like a mix of an acid test, combined with a nitrous oxide jag. Of course that some of them are actually quite beautiful, and would not have offended Rene Magritte or more plausibly Angus Bean or Man Ray (actually, I think all of them would have pissed off Cecil Beaton or Karsh) only makes it better. Thanks for posting them. Didn't some of these also wind up on a tee-shirt for a USENIX or AUUG? -George ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [9fans] Pico (again) 2002-07-18 20:04 Dennis Ritchie 2002-07-19 8:19 ` ggm @ 2002-07-29 15:57 ` Douglas A. Gwyn 1 sibling, 0 replies; 14+ messages in thread From: Douglas A. Gwyn @ 2002-07-29 15:57 UTC (permalink / raw) To: 9fans Dennis Ritchie wrote: > http://www.cs.bell-labs.com/10thEdMan/v2pix.html Any prizes for guessing what the transformation formulae were? ^ permalink raw reply [flat|nested] 14+ messages in thread
* [9fans] Pico (again) @ 2002-07-18 8:53 steve.simon 0 siblings, 0 replies; 14+ messages in thread From: steve.simon @ 2002-07-18 8:53 UTC (permalink / raw) To: 9fans Hi, Pico was a JIT compiler for expressions mapping one image onto another. The compiler was written only for the VAX. There are several versions available in c.s.u starting with a cut down, interpreted version called popi released by Gerard Holzman later versions had JIT compilers added by Byron Rakitzis of Unix RC fame. Some time ago I had grand ideas of producing something similar for processing data streams of video but I'm afraid it fell at the hurdle of my lack of understanding of process networks generation. The original interpreted popi should run fine on Plan9 under pcc. Sorry if any of this is inaccurate, its from memory. -Steve ^ permalink raw reply [flat|nested] 14+ messages in thread
* [9fans] Pico (again) @ 2002-07-17 22:46 Sam 2002-07-18 0:28 ` Fariborz (Skip) Tavakkolian 0 siblings, 1 reply; 14+ messages in thread From: Sam @ 2002-07-17 22:46 UTC (permalink / raw) To: 9fans Of course, now that I've thought about it if you're looking for an editor with the "simplicity" of pico you can always use the rio window buffer and snarf it into a file when you're done. Rob mentions this in his 8 1/2 paper (The editing, not the snarfing, iirc). Sam ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [9fans] Pico (again) 2002-07-17 22:46 Sam @ 2002-07-18 0:28 ` Fariborz (Skip) Tavakkolian 2002-07-17 23:19 ` Sam 2002-07-18 9:51 ` William Josephson 0 siblings, 2 replies; 14+ messages in thread From: Fariborz (Skip) Tavakkolian @ 2002-07-18 0:28 UTC (permalink / raw) To: 9fans, 9fans wait. I meant the other pico. I thought in this list at least the other one would be more famous. There is a link on this page to the original source; it is guaranteed not to compile on any modern machines. http://cm.bell-labs.com/cm/cs/who/gerard/ At 06:46 PM 7/17/2002 -0400, Sam wrote: >Of course, now that I've thought about it if you're >looking for an editor with the "simplicity" of >pico you can always use the rio window buffer >and snarf it into a file when you're done. > >Rob mentions this in his 8 1/2 paper (The editing, >not the snarfing, iirc). > >Sam ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [9fans] Pico (again) 2002-07-18 0:28 ` Fariborz (Skip) Tavakkolian @ 2002-07-17 23:19 ` Sam 2002-07-18 0:35 ` Fariborz (Skip) Tavakkolian 2002-07-18 9:51 ` William Josephson 1 sibling, 1 reply; 14+ messages in thread From: Sam @ 2002-07-17 23:19 UTC (permalink / raw) To: 9fans There's my age showing again. Sorry about that. Sam On Wed, 17 Jul 2002, Fariborz (Skip) Tavakkolian wrote: > wait. I meant the other pico. I thought in this list at least the > other one would be more famous. > > There is a link on this page to the original source; it is guaranteed not to compile > on any modern machines. > http://cm.bell-labs.com/cm/cs/who/gerard/ > > At 06:46 PM 7/17/2002 -0400, Sam wrote: > >Of course, now that I've thought about it if you're > >looking for an editor with the "simplicity" of > >pico you can always use the rio window buffer > >and snarf it into a file when you're done. > > > >Rob mentions this in his 8 1/2 paper (The editing, > >not the snarfing, iirc). > > > >Sam > ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [9fans] Pico (again) 2002-07-17 23:19 ` Sam @ 2002-07-18 0:35 ` Fariborz (Skip) Tavakkolian 0 siblings, 0 replies; 14+ messages in thread From: Fariborz (Skip) Tavakkolian @ 2002-07-18 0:35 UTC (permalink / raw) To: 9fans You were talking about the dark ages, and I only meant the middle ages. At 07:19 PM 7/17/2002 -0400, Sam wrote: >There's my age showing again. ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [9fans] Pico (again) 2002-07-18 0:28 ` Fariborz (Skip) Tavakkolian 2002-07-17 23:19 ` Sam @ 2002-07-18 9:51 ` William Josephson 1 sibling, 0 replies; 14+ messages in thread From: William Josephson @ 2002-07-18 9:51 UTC (permalink / raw) To: 9fans In article, Fariborz Skip Tavakkolian wrote: > wait. I meant the other pico. I thought in this list at least the > other one would be more famous. > > http://cm.bell-labs.com/cm/cs/who/gerard/ I don't know if rsc did pico, but he did have a little graphics compiler for the x86 at one point. I doubt he handed it out to anyone. ^ permalink raw reply [flat|nested] 14+ messages in thread
end of thread, other threads:[~2002-07-29 15:57 UTC | newest] Thread overview: 14+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2002-07-18 14:14 [9fans] Pico (again) anothy 2002-07-18 18:07 ` Fariborz (Skip) Tavakkolian 2002-07-18 23:07 ` Micah Stetson 2002-07-29 15:57 ` Douglas A. Gwyn -- strict thread matches above, loose matches on Subject: below -- 2002-07-26 6:03 Byron Rakitzis 2002-07-18 20:04 Dennis Ritchie 2002-07-19 8:19 ` ggm 2002-07-29 15:57 ` Douglas A. Gwyn 2002-07-18 8:53 steve.simon 2002-07-17 22:46 Sam 2002-07-18 0:28 ` Fariborz (Skip) Tavakkolian 2002-07-17 23:19 ` Sam 2002-07-18 0:35 ` Fariborz (Skip) Tavakkolian 2002-07-18 9:51 ` William Josephson
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