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implement metamorph;
include "sys.m";
include "draw.m";
include "bufio.m";
include "string.m";
include "imagefile.m";
sys: Sys;
bufio: Bufio;
str: String;
draw: Draw;
FD: import sys;
Display: import draw;
stderr: ref FD;
metamorph: module
{
init: fn(ctxt: ref Draw->Context, argv: list of string);
};
init(ctxt: ref Draw->Context, args: list of string)
{
sys = load Sys Sys->PATH;
stderr = sys->fildes(2);
bufio = load Bufio Bufio->PATH;
str = load String String->PATH;
if (bufio == nil) {
sys->fprint(stderr, "could not load %s: %r\n", Bufio->PATH);
exit;
}
draw = load Draw Draw->PATH;
if (draw == nil) {
sys->fprint(stderr, "could not load %s: %r\n", Draw->PATH);
exit;
}
ri := load RImagefile RImagefile->READGIFPATH;
if (ri == nil) {
sys->fprint(stderr, "could not load %s: %r\n", RImagefile->READGIFPATH);
exit;
}
ir := load Imageremap Imageremap->PATH;
if (ir == nil) {
sys->fprint(stderr, "could not load %s: %r\n", Imageremap->PATH);
exit;
}
if (len args < 2) {
sys->fprint(stderr, "Metamorph Usage:\n metamorph <# of slides>\n\n");
return;
}
infile :string;
(numslides, nil) := str->toint((hd (tl args)), 10);
for (count := 1;count <=numslides; count++) {
ri->init(bufio);
if ( count < 10 )
infile= sys->sprint("img00%d.GIF",count);
if (( count >= 10 ) && ( count < 100))
infile= sys->sprint("img0%d.GIF",count);
if (count >= 100)
infile= sys->sprint("img%d.GIF",count);
outfile := sys->sprint("img%d.bit",count);
inf := bufio->open(infile, Bufio->OREAD);
sys->print ("Reading %s\n",infile);
if (inf == nil) {
sys->fprint(stderr, "could not fopen(0): %r\n");
exit;
}
(gif, s) := ri->read(inf);
if (gif == nil) {
sys->fprint(stderr, "bad GIF: %s\n", s);
exit;
}
(im, e) := ir->remap(gif, ctxt.display, 1);
if (im == nil) {
sys->fprint(stderr, "bad remap: %s\n", e);
exit;
}
sys->print("Writing %s\n",outfile);
outf := sys->create(outfile, sys->OWRITE,438);
ctxt.display.writeimage(outf, im);
outf = nil;
}
}
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