ref: 01338076d1a3610858f41fcbcdc7e46fb1109b77
dir: /appl/grid/demo/blur.b/
implement Blur;
include "tk.m";
tk: Tk;
include "tkclient.m";
tkclient: Tkclient;
include "sys.m";
sys : Sys;
include "daytime.m";
daytime: Daytime;
include "draw.m";
draw: Draw;
Display, Chans, Point, Rect, Image: import draw;
include "readdir.m";
readdir: Readdir;
include "grid/demo/exproc.m";
exproc: Exproc;
include "grid/demo/block.m";
block: Block;
display : ref draw->Display;
context : ref draw->Context;
path := "/tmp/blur/";
Blur : module {
init : fn (ctxt : ref Draw->Context, nil : list of string);
getslavedata : fn (lst: list of string);
doblock : fn (block: int, bpath: string);
readblock : fn (block: int, dir: string, chanout: chan of string): int;
finish : fn (waittime: int, tkchan: chan of string);
};
init(ctxt : ref Draw->Context, argv : list of string)
{
sys = load Sys Sys->PATH;
if (sys == nil)
badmod(Sys->PATH);
draw = load Draw Draw->PATH;
if (draw == nil)
badmod(Draw->PATH);
daytime = load Daytime Daytime->PATH;
if (daytime == nil)
badmod(Daytime->PATH);
tk = load Tk Tk->PATH;
if (tk == nil)
badmod(Tk->PATH);
tkclient = load Tkclient Tkclient->PATH;
if (tkclient == nil)
badmod(Tkclient->PATH);
tkclient->init();
readdir = load Readdir Readdir->PATH;
if (readdir == nil)
badmod(Readdir->PATH);
exproc = load Exproc "$self";
if (exproc == nil)
badmod(sys->sprint("Exproc: %r"));
block = load Block Block->PATH;
if (block == nil)
badmod(Block->PATH);
if (ctxt == nil) {
display = Display.allocate(nil);
if (display == nil)
usage(sys->sprint("failed to get a display: %r"));
context = nil;
}
else {
display = ctxt.display;
context = ctxt;
}
spawn blurit(argv);
}
blurit(argv: list of string)
{
mast := 0;
size = 12;
blocks = Point (10,6);
filename := "";
argv = tl argv;
if (len argv > 2)
usage("too many arguments");
for (; argv != nil; argv = tl argv) {
(n,dir) := sys->stat(hd argv);
if (n == -1)
usage("file/directory '"+hd argv+"' does not exist");
if (dir.mode & sys->DMDIR)
path = hd argv;
else {
filename = hd argv;
mast = 1;
}
}
if (mast && context == nil)
usage("nil context - cannot be used as master");
if (path[len path - 1] != '/')
path[len path] = '/';
if (len path < 5 || path[len path - 5:] != "blur/")
path += "blur/";
block->init(path, exproc);
if (mast)
spawn master(filename);
else {
sys->print("starting slave\n");
spawn block->slave();
}
}
usage(err: string)
{
sys->print("usage: blur [dir] [image]\n");
if (err != nil) {
sys->print("Error: %s\n",err);
raise "fail:error";
}
else
exit;
}
getslavedata(lst: list of string)
{
if (lst == nil || len lst < 5)
block->err("Cannot read data file");
size = int hd lst;
blocks = Point(int hd tl lst, int hd tl tl lst);
bsize = Point(int hd tl tl tl lst, int hd tl tl tl tl lst);
blockimg = display.newimage(((0,0),bsize), draw->RGB24,0,draw->Red);
}
blocks, bsize: Draw->Point;
size: int;
newimg: ref Draw->Image;
getxy(i, w: int): (int, int)
{
y := i / w;
x := i - (y * w);
return (x,y);
}
master(filename: string)
{
block->cleanfiles(path);
img := display.open(filename);
if (img == nil)
block->err("cannot read image: "+filename);
if (img.chans.depth() != 24)
block->err("wrong image depth! (must be 24bit)\n");
sys->create(path, sys->OREAD, 8r777 | sys->DMDIR);
blocks.x = img.r.dx() / 70;
if (blocks.x < 1)
blocks.x = 1;
blocks.y = img.r.dy() / 70;
if (blocks.y < 1)
blocks.y = 1;
bsize = Point(img.r.dx()/blocks.x, img.r.dy()/blocks.y);
data := sys->sprint("%d\n%d\n%d\n%d\n%d\n",size,blocks.x,blocks.y,bsize.x,bsize.y);
noblocks := blocks.x * blocks.y;
n := 0;
for (y := 0; y < blocks.y; y++) {
for (x := 0; x < blocks.x; x++) {
r2 := Rect(((x*bsize.x)-size, (y*bsize.y)-size),
(((1+x)*bsize.x)+size, ((1+y)*bsize.y)+size));
if (r2.min.x < 0)
r2.min.x = 0;
if (r2.min.y < 0)
r2.min.y = 0;
if (r2.max.x > img.r.max.x)
r2.max.x = img.r.max.x;
if (r2.max.y > img.r.max.y)
r2.max.y = img.r.max.y;
tmpimg := display.newimage(r2,draw->RGB24,0,draw->Black);
tmpimg.draw(r2, img, nil, r2.min);
fdtmp := sys->create(path+"imgdata."+string n+".bit", sys->OWRITE, 8r666);
if (fdtmp == nil)
sys->print("couldn't write image: '%s' %r\n",path+"imgdata."+string n+".bit");
display.writeimage(fdtmp, tmpimg);
n++;
}
}
block->writedata(data);
block->masterinit(noblocks);
(top, titlebar) := tkclient->toplevel(context, "", "Blur", Tkclient->Hide);
tkcmd(top, "frame .f");
r2 := Rect((0,0),(blocks.x*bsize.x,blocks.y*bsize.y));
newimg = display.newimage(r2,draw->RGB24,0,draw->Black);
newimg.draw(r2,img,nil,(0,0));
tkcmd(top, sys->sprint("panel .f.p -height %d -width %d", r2.dy(), r2.dx()));
tk->putimage(top, ".f.p", newimg, nil);
tkcmd(top, "label .f.l1 -text {Processed: }");
tkcmd(top, "label .f.l2 -text {0%} -width 30");
tkcmd(top, "grid .f.p -row 0 -column 0 -columnspan 2");
tkcmd(top, "grid .f.l1 -row 1 -column 0 -sticky e");
tkcmd(top, "grid .f.l2 -row 1 -column 1 -sticky w");
tkcmd(top, "pack .f");
tkcmd(top, "bind .Wm_t <Button-1> +{focus .}");
tkcmd(top, "bind .Wm_t.title <Button-1> +{focus .}");
tkcmd(top, "focus .; update");
tkchan := chan of string;
sync := chan of int;
spawn block->reader(noblocks, tkchan, sync);
readerpid := <-sync;
spawn window(top, titlebar, newimg, tkchan, readerpid);
}
blockimg: ref Draw->Image;
doblock(block: int, bpath: string)
{
(x,y) := getxy(block, blocks.x);
procimg := display.open(path+"imgdata."+string block+".bit");
if (procimg == nil)
sys->print("Error nil image! '%s' %r\n",path+"imgdata."+string block+".bit");
blurred := procblock(procimg, x,y,0,size,bsize);
sketched := procblock(procimg, x,y,1,3,bsize);
for (i := 0; i < len blurred; i++) {
if (sketched[i] != byte 127)
blurred[i] = sketched[i];
}
blockimg.writepixels(((0,0),bsize), blurred);
fd := sys->create(path + bpath+"/img.bit",sys->OWRITE,8r666);
display.writeimage(fd, blockimg);
fd = nil;
sys->create(path + bpath+"/done", sys->OWRITE, 8r666);
}
window(top: ref Tk->Toplevel, titlebar: chan of string,
img: ref Image, tkchan: chan of string, readerpid: int)
{
total := blocks.x * blocks.y;
done := 0;
tkclient->onscreen(top, nil);
tkclient->startinput(top, "kbd"::"ptr"::nil);
finished := 0;
main: for(;;) alt {
s := <-top.ctxt.kbd =>
tk->keyboard(top, s);
s := <-top.ctxt.ptr =>
tk->pointer(top, *s);
inp := <- tkchan =>
(n, lst) := sys->tokenize(inp, " \n\t");
case hd lst {
"done" =>
done++;
tkcmd(top, ".f.l2 configure -text {"+string ((100*done)/total)+"%}");
tkcmd(top, ".f.p dirty");
"time" =>
tkcmd(top, ".f.l1 configure -text {Time taken:}");
tkcmd(top, ".f.l2 configure -text {"+hd tl lst+"} -width 80");
finished = 1;
* =>
tkcmd(top, ".f.l2 configure -text {"+inp+"%}");
}
tkcmd(top, "update");
title := <-top.ctxt.ctl or
title = <-top.wreq or
title = <- titlebar =>
if (title == "exit") {
if (finished) {
kill(readerpid);
break main;
}
}
else
tkclient->wmctl(top, title);
}
spawn block->cleanfiles(path);
}
readblock(block: int, dir: string, chanout: chan of string): int
{
img := display.open(dir+"img.bit");
if (img == nil)
return -1;
(ix,iy) := getxy(block, blocks.x);
newimg.draw(img.r.addpt(Point(ix*bsize.x, iy*bsize.y)),img,nil,(0,0));
chanout <-= "done";
return 0;
}
finish(waittime: int, tkchan: chan of string)
{
hrs := waittime / 360;
mins := (waittime - (360 * hrs)) / 60;
secs := waittime - (360 * hrs) - (60 * mins);
time := addzeros(sys->sprint("%d:%d:%d",hrs,mins,secs));
if (hrs == 0) time = time[3:];
tkchan <-= "time "+time;
block->cleanfiles(path);
}
procblock(procimg: ref Image, x,y, itype, size: int, bsize: Point): array of byte
{
r := Rect((x*bsize.x, y*bsize.y), ((1+x)*bsize.x, (1+y)*bsize.y));
r2 : Rect;
if (itype == 0)
r2 = procimg.r;
else
r2 = Rect((x*bsize.x, y*bsize.y), (((1+x)*bsize.x)+1, ((1+y)*bsize.y)+1));
if (r2.min.x < 0)
r2.min.x = 0;
if (r2.min.y < 0)
r2.min.y = 0;
if (r2.max.x > procimg.r.max.x)
r2.max.x = procimg.r.max.x;
if (r2.max.y > procimg.r.max.y)
r2.max.y = procimg.r.max.y;
buf := array[3 * r2.dx() * r2.dy()] of byte;
procimg.readpixels(r2,buf);
pad := Rect((r.min.x-r2.min.x, r.min.y-r2.min.y), (r2.max.x - r.max.x, r2.max.y-r.max.y));
if (itype == 0)
return blurblock(size,r,pad,buf);
if (itype == 1)
return gradblock(10,r,pad,buf);
return nil;
}
makepic(buf: array of int, w,nw,nh: int): array of byte
{
newbuf := array[3*nw*nh] of byte;
n := 0;
for (y := 0; y < nh; y++) {
for (x := 0; x < nw; x++) {
val := byte buf[(y*w)+x];
if (val < byte 0) val = -val;
if (val > byte 255) val = byte 255;
for (i := 0; i < 3; i++)
newbuf[n++] = val;
}
}
return newbuf;
}
gradblock(threshold: int, r, pad: Rect, buffer: array of byte) : array of byte
{
gradbufx := array[3] of array of int;
gradbufy := array[3] of array of int;
width: int;
cleaning := 3;
for (rgb := 0; rgb < 3; rgb++) {
greybuf := array[len buffer] of { * => 0 };
n := 0;
width = r.dx()+pad.max.x;
for (y := 0; y < r.dy()+pad.max.y; y++) {
for (x := 0; x < r.dx()+pad.max.x; x++) {
greybuf[n++] = int buffer[(3* ((y*width) + x ))+rgb];
}
}
for(i := 0; i < 2; i++) {
padx := pad.max.x;
pady := pad.max.y;
width = r.dx();
height := r.dy();
gradbuf: array of int;
(gradbuf, width, height, padx, pady) = getgrad(greybuf, i, width,height, padx, pady);
width = r.dx();
if (i == 0) {
gradbufx[rgb] = clean(hyster(gradbuf,1,width,threshold), width,5,4);
for (k := 0; k < cleaning; k++)
gradbufx[rgb] = clean(gradbufx[rgb], width,2,2);
}
else {
gradbufy[rgb] = clean(hyster(gradbuf, 0,width,threshold), width,5,4);
for (k := 0; k < cleaning; k++)
gradbufy[rgb] = clean(gradbufy[rgb], width,2,2);
}
}
}
newbuf := array[len gradbufx[0]] of int;
for (i := 0; i < len newbuf; i++) {
val := 127;
n := 0;
for (rgb = 0; rgb < 3; rgb++) {
if (gradbufx[rgb][i] != 127) {
n++;
val = gradbufx[rgb][i];
}
else if (gradbufy[rgb][i] != 127) {
val = gradbufy[rgb][i];
n++;
}
}
if (n > 1)
newbuf[i] = val;
else
newbuf[i] = 127;
}
if (sat(newbuf) > 25 && threshold > 4)
return gradblock(threshold - 2,r,pad,buffer);
return makepic(newbuf,width,r.dx(),r.dy());
}
X: con 0;
Y: con 1;
getgrad(buf: array of int, dir, w,h, px, py: int): (array of int, int, int, int, int)
{
npx := px - 1;
npy := py - 1;
if (npx < 0) npx = 0;
if (npy < 0) npy = 0;
gradbuf := array[(w+npx)*(h+npy)] of int;
n := 0;
val1, val2: int;
for (y := 0; y < h+npy; y++) {
for (x := 0; x < w+npx; x++) {
val1 = buf[(y*(w+px)) + x];
if ((dir == X && x-w >= npx) ||
(dir == Y && y-h >= npy))
val2 = val1;
else
val2 = buf[((y+dir)*(w+px)) + x + 1 - dir];
gradbuf[n++] = val2 - val1;
}
}
return (norm(gradbuf,0,255), w, h, px,py);
}
sat(a: array of int): int
{
n := 0;
for (i := 0; i < len a; i++)
if (a[i] != 127)
n++;
return (100 * n)/ len a;
}
hyster(a: array of int, gox, width: int, lim: int): array of int
{
min, max: int;
av := 0;
for (i := 0; i < len a; i++) {
if (i == 0)
min = max = a[i];
if (a[i] < min)
min = a[i];
if (a[i] > max)
max = a[i];
av += a[i];
}
# sys->print("%d/%d = %d\n",av,len a,av / len a);
av = av/len a;
upper := av + ((max-av)/lim);
lower := av - ((av-min)/ lim);
low := 0;
# sys->print("len a: %d %d %d %d\n",len a,av,min,max);
i = 0;
x := 0;
y := 0;
height := len a / width;
newline := 1;
# sys->print("width: %d gox: %d\n",width,gox);
for (k := 0; k < len a; k++) {
i = (y*width) + x;
if (newline) {
# if (a[i] < av) low = 1;
# else low = 0;
low = a[i] > av;
newline = 0;
}
oldlow := low;
if (low == 0) {
if (a[i] > upper)
low = 1;
}
else if (low == 1) {
if (a[i] < lower)
low = 0;
}
# sys->print("a[i]: %d bound: %d %d low %d => %d\n",a[i],lower,upper,oldlow,low);
if (oldlow == low)
a[i] =127;
else
a[i] = low * 255;
if (gox) {
i++;
x++;
if (x == width) {
x = 0;
y++;
newline = 1;
}
}
else {
i += width;
y++;
if (y == height) {
# sys->print("y: %d\n",y);
y = 0;
i = x;
x++;
newline = 1;
}
}
}
return a;
}
clean(a: array of int, width, r, d: int): array of int
{
height := len a / width;
csize := (2*r) ** 2;
for (y := 0; y < height; y++) {
for (x := 0; x < width; x++) {
i := (width*y)+x;
if (a[i] != 127) {
sx := x - r;
if (sx < 0) sx = 0;
ex := x + r;
if (ex > width) ex = width;
sy := y - r;
if (sy < 0) sy = 0;
ey := y + r;
n := 0;
if (ey > height) ey = height;
for (iy := sy; iy < ey; iy++) {
for (ix := sx; ix < ex; ix++) {
if (a[(width*iy)+ix] == a[i])
n++;
}
}
#sys->print("%f\n",real ((ex-sx)*(ey-sy))/ real csize);
# if (n < int (real d * (real ((ex-sx)*(ey-sy))/ real csize)))
if (n < d)
a[i] = 127;
}
}
}
return a;
}
norm(a: array of int, lower, upper: int): array of int
{
min, max: int;
for (i := 0; i < len a; i++) {
if (i == 0)
min = max = a[i];
if (a[i] < min)
min = a[i];
if (a[i] > max)
max = a[i];
}
multi : real = (real (upper - lower)) / (real (max - min));
add := real (lower - min);
for (i = 0; i < len a; i++) {
a[i] = int ((add + real a[i]) * multi);
if (a[i] < lower)
a[i] = lower;
if (a[i] > upper)
a[i] = upper;
}
return a;
}
opt := 2;
blurblock(size: int, r, pad: Rect, buffer: array of byte) : array of byte
{
newbuf := array[3 * r.dx() * r.dy()] of byte;
n := 0;
width := r.dx()+pad.min.x+pad.max.x;
for (y := 0; y < r.dy(); y++) {
for (x := 0; x < r.dx(); x++) {
r2 := Rect((x-size,y-size),(x+size+1,y+size+1));
if (r2.min.x < -pad.min.x)
r2.min.x = -pad.min.x;
if (r2.min.y < -pad.min.y)
r2.min.y = -pad.min.y;
if (r2.max.x > r.dx()+pad.max.x)
r2.max.x = r.dx()+pad.max.x;
if (r2.max.y > r.dy()+pad.max.y)
r2.max.y = r.dy()+pad.max.y;
nosamples := r2.dx()*r2.dy();
r2.min.x += pad.min.x;
r2.min.y += pad.min.y;
r2.max.x += pad.min.x;
r2.max.y += pad.min.y;
pixel := array[3] of { * => 0};
for (sy := r2.min.y; sy < r2.max.y; sy++) {
for (sx := r2.min.x; sx < r2.max.x; sx++) {
for (i := 0; i < 3; i++)
pixel[i] += int buffer[(3* ( ((sy)*width) + (sx) ) )+ i];
}
}
for (i := 0; i < 3; i++) {
if (opt == 0)
newbuf[n++] = byte (pixel[i] / nosamples);
if (opt == 1)
newbuf[n++] = byte (255 - (pixel[i] / nosamples));
if (opt == 2)
newbuf[n++] = byte (63 + (pixel[i] / (2*nosamples)));
}
}
}
return newbuf;
}
tkcmd(top: ref Tk->Toplevel, cmd: string): string
{
e := tk->cmd(top, cmd);
if (e != "" && e[0] == '!') sys->print("tk error: '%s': %s\n",cmd,e);
return e;
}
addzeros(s: string): string
{
s[len s] = ' ';
rs := "";
start := 0;
isnum := 0;
for (i := 0; i < len s; i++) {
if (s[i] < '0' || s[i] > '9') {
if (isnum && i - start < 2) rs[len rs] = '0';
rs += s[start:i+1];
start = i+1;
isnum = 0;
}
else isnum = 1;
}
i = len rs - 1;
while (i >= 0 && rs[i] == ' ') i--;
return rs[:i+1];
}
kill(pid: int)
{
pctl := sys->open("/prog/" + string pid + "/ctl", Sys->OWRITE);
if (pctl != nil)
sys->write(pctl, array of byte "kill", len "kill");
}
badmod(path: string)
{
sys->print("Blur: failed to load: %s\n",path);
exit;
}