void
swcursorinit(void)
{
static int init;
if(!init){
init = 1;
addclock0link(swcursorclock, 10);
swenabled = 1;
}
if(swback){
freememimage(swback);
freememimage(swmask);
freememimage(swmask1);
freememimage(swimg);
freememimage(swimg1);
}
swback = allocmemimage(Rect(0,0,32,32), gscreen->chan);
swmask = allocmemimage(Rect(0,0,16,16), GREY8);
swmask1 = allocmemimage(Rect(0,0,16,16), GREY1);
swimg = allocmemimage(Rect(0,0,16,16), GREY8);
swimg1 = allocmemimage(Rect(0,0,16,16), GREY1);
if(swback==nil || swmask==nil || swmask1==nil || swimg==nil || swimg1 == nil){
print("software cursor: allocmemimage fails\n");
return;
}
memfillcolor(swmask, DOpaque);
memfillcolor(swmask1, DOpaque);
memfillcolor(swimg, DBlack);
memfillcolor(swimg1, DBlack);
}
Memimage*
rot90(Memimage *m)
{
int line, bpp, x, y, dx, dy;
ulong chan;
uchar *s, *d;
Memimage *w;
bpp = (m->depth+7)/8;
chan = m->chan;
switch(chan){
case GREY1:
case GREY2:
case GREY4:
if((w = allocmemimage(m->r, GREY8)) == nil)
sysfatal("allocmemimage: %r");
memimagedraw(w, w->r, m, m->r.min, nil, ZP, S);
freememimage(m);
m = w;
break;
}
dx = Dx(m->r);
dy = Dy(m->r);
if((w = allocmemimage(Rect(m->r.min.x, m->r.min.y,
m->r.min.x+dy, m->r.min.y+dx), m->chan)) == nil)
sysfatal("allocmemimage: %r");
line = w->width*sizeof(ulong);
for(y=0; y<dy; y++){
s = byteaddr(m, addpt(m->r.min, Pt(0, y)));
d = byteaddr(w, addpt(w->r.min, Pt(dy-y-1, 0)));
for(x=0; x<dx; x++){
switch(bpp){
case 4:
d[3] = s[3];
case 3:
d[2] = s[2];
case 2:
d[1] = s[1];
case 1:
d[0] = s[0];
}
s += bpp;
d += line;
}
}
freememimage(m);
if(w->chan != chan){
if((m = allocmemimage(w->r, chan)) == nil)
sysfatal("allocmemimage: %r");
memimagedraw(m, m->r, w, w->r.min, nil, ZP, S);
freememimage(w);
w = m;
}
return w;
}
int
memlsetrefresh(Memimage *i, Refreshfn fn, void *ptr)
{
Memlayer *l;
l = i->layer;
if(l->refreshfn!=0 && fn!=0) { /* just change functions */
l->refreshfn = fn;
l->refreshptr = ptr;
return 1;
}
if(l->refreshfn == 0) { /* is using backup image; just free it */
freememimage(l->save);
l->save = nil;
l->refreshfn = fn;
l->refreshptr = ptr;
return 1;
}
l->save = allocmemimage(i->r, i->chan);
if(l->save == nil)
return 0;
/* easiest way is just to update the entire save area */
l->refreshfn(i, i->r, l->refreshptr);
l->refreshfn = 0;
l->refreshptr = nil;
return 1;
}
void
main(int argc, char **argv)
{
Memimage *x;
Point c = {208,871};
int a = 441;
int b = 441;
int thick = 0;
Point sp = {0,0};
int alpha = 51;
int phi = 3;
vlong t0, t1;
int i, n;
vlong del;
if (argc != 2) {
fprint(2, "usage: arctest number\n");
exits("usage");
}
memimageinit();
x = allocmemimage(Rect(0,0,1000,1000), CMAP8);
n = atoi(argv[1]);
t0 = nsec();
t0 = nsec();
t0 = nsec();
t1 = nsec();
del = t1-t0;
t0 = nsec();
for(i=0; i<n; i++)
memarc(x, c, a, b, thick, memblack, sp, alpha, phi, SoverD);
t1 = nsec();
print("%lld %lld\n", t1-t0-del, del);
}
void
screeninit(void)
{
int fmt;
int dx, dy;
ProcessSerialNumber psn = { 0, kCurrentProcess };
TransformProcessType(&psn, kProcessTransformToForegroundApplication);
SetFrontProcess(&psn);
fmt = XBGR32; //XRGB32;
devRect = max_bounds();
dx = devRect.size.width;
dy = devRect.size.height;
gscreen = allocmemimage(Rect(0,0,dx,dy), fmt);
dataProviderRef = CGDataProviderCreateWithData(0, gscreen->data->bdata,
dx * dy * 4, 0);
fullScreenImage = CGImageCreate(dx, dy, 8, 32, dx * 4,
CGColorSpaceCreateDeviceRGB(),
kCGImageAlphaNoneSkipLast,
dataProviderRef, 0, 0, kCGRenderingIntentDefault);
devRect = CGDisplayBounds(CGMainDisplayID());
kproc("osxscreen", winproc, nil, 0);
kproc("osxflush", flushproc, nil, 0);
Sleep(&rend, isready, nil);
}
void
swcursorinit(void)
{
static int init, warned;
VGAscr *scr;
didswcursorinit = 1;
if(!init){
init = 1;
addclock0link(swcursorclock, 10);
}
scr = &vgascreen[0];
if(scr==nil || scr->gscreen==nil)
return;
if(scr->dev == nil || scr->dev->linear == nil){
if(!warned){
print("cannot use software cursor on non-linear vga screen\n");
warned = 1;
}
return;
}
if(swback){
freememimage(swback);
freememimage(swmask);
freememimage(swmask1);
freememimage(swimg);
freememimage(swimg1);
}
swback = allocmemimage(Rect(0,0,32,32), gscreen->chan);
swmask = allocmemimage(Rect(0,0,16,16), GREY8);
swmask1 = allocmemimage(Rect(0,0,16,16), GREY1);
swimg = allocmemimage(Rect(0,0,16,16), GREY8);
swimg1 = allocmemimage(Rect(0,0,16,16), GREY1);
if(swback==nil || swmask==nil || swmask1==nil || swimg==nil || swimg1 == nil){
print("software cursor: allocmemimage fails");
return;
}
memfillcolor(swmask, DOpaque);
memfillcolor(swmask1, DOpaque);
memfillcolor(swimg, DBlack);
memfillcolor(swimg1, DBlack);
}
Memimage*
allocrepl(ulong color)
{
Memimage *m;
m = allocmemimage(Rect(0,0,1,1), RGB24);
memfillcolor(m, color);
m->flags |= Frepl;
m->clipr = Rect(-1000000, -1000000, 1000000, 1000000);
return m;
}
void
vgaimageinit(ulong chan)
{
if(back == nil){
back = allocmemimage(Rect(0,0,1,1), chan); /* RSC BUG */
if(back == nil)
panic("back alloc"); /* RSC BUG */
back->flags |= Frepl;
back->clipr = Rect(-0x3FFFFFF, -0x3FFFFFF, 0x3FFFFFF, 0x3FFFFFF);
memfillcolor(back, DBlack);
}
if(conscol == nil){
conscol = allocmemimage(Rect(0,0,1,1), chan); /* RSC BUG */
if(conscol == nil)
panic("conscol alloc"); /* RSC BUG */
conscol->flags |= Frepl;
conscol->clipr = Rect(-0x3FFFFFF, -0x3FFFFFF, 0x3FFFFFF, 0x3FFFFFF);
memfillcolor(conscol, DWhite);
}
}
Memimage*
memmultichan(Memimage *i)
{
Memimage *ni;
if(notrans(i->chan))
return i;
ni = allocmemimage(i->r, RGB24);
if(ni == nil)
return ni;
memimagedraw(ni, ni->r, i, i->r.min, nil, i->r.min, S);
return ni;
}
int
memunload(Memimage *src, Rectangle r, uint8_t *data, int n)
{
Memimage *tmp;
Memlayer *dl;
Rectangle lr;
int dx;
Top:
dl = src->layer;
if(dl == nil)
return unloadmemimage(src, r, data, n);
/*
* Convert to screen coordinates.
*/
lr = r;
r.min.x += dl->delta.x;
r.min.y += dl->delta.y;
r.max.x += dl->delta.x;
r.max.y += dl->delta.y;
dx = dl->delta.x&(7/src->depth);
if(dl->clear && dx==0){
src = dl->screen->image;
goto Top;
}
/*
* src is an obscured layer or data is unaligned
*/
if(dl->save && dx==0){
if(dl->refreshfn != nil)
return -1; /* can't unload window if it's not Refbackup */
if(n > 0)
memlhide(src, r);
n = unloadmemimage(dl->save, lr, data, n);
return n;
}
tmp = allocmemimage(lr, src->chan);
if(tmp == nil)
return -1;
memdraw(tmp, lr, src, lr.min, nil, lr.min, S);
n = unloadmemimage(tmp, lr, data, n);
freememimage(tmp);
return n;
}
static void
screenwin(void)
{
Point p, q;
char *greet;
Memimage *orange;
Rectangle r;
memsetchan(gscreen, RGB16);
back = memwhite;
conscol = memblack;
orange = allocmemimage(Rect(0,0,1,1), RGB16);
orange->flags |= Frepl;
orange->clipr = gscreen->r;
orange->data->bdata[0] = 0x40;
orange->data->bdata[1] = 0xfd;
w = memdefont->info[' '].width;
h = memdefont->height;
r = insetrect(gscreen->r, 4);
memimagedraw(gscreen, r, memblack, ZP, memopaque, ZP, S);
window = insetrect(r, 4);
memimagedraw(gscreen, window, memwhite, ZP, memopaque, ZP, S);
memimagedraw(gscreen, Rect(window.min.x, window.min.y,
window.max.x, window.min.y+h+5+6), orange, ZP, nil, ZP, S);
freememimage(orange);
window = insetrect(window, 5);
greet = " Plan 9 Console ";
p = addpt(window.min, Pt(10, 0));
q = memsubfontwidth(memdefont, greet);
memimagestring(gscreen, p, conscol, ZP, memdefont, greet);
flushmemscreen(r);
window.min.y += h+6;
curpos = window.min;
window.max.y = window.min.y+((window.max.y-window.min.y)/h)*h;
}
static void
screenwin(void)
{
Point p;
char *greet;
Memimage *grey;
drawqlock();
back = memwhite;
conscol = memblack;
memfillcolor(gscreen, 0x444488FF);
h = memdefont->height;
window.min = addpt(gscreen->r.min, Pt(20,20));
window.max.x = window.min.x + Dx(gscreen->r)*3/4-40;
window.max.y = window.min.y + Dy(gscreen->r)*3/4-100;
memimagedraw(gscreen, window, memblack, ZP, memopaque, ZP, S);
window = insetrect(window, 4);
memimagedraw(gscreen, window, memwhite, ZP, memopaque, ZP, S);
/* a lot of work to get a grey color */
grey = allocmemimage(Rect(0,0,1,1), CMAP8);
grey->flags |= Frepl;
grey->clipr = gscreen->r;
memfillcolor(grey, 0xAAAAAAFF);
memimagedraw(gscreen, Rect(window.min.x, window.min.y,
window.max.x, window.min.y+h+5+6), grey, ZP, nil, ZP, S);
freememimage(grey);
window = insetrect(window, 5);
greet = " Plan 9 Console ";
p = addpt(window.min, Pt(10, 0));
memimagestring(gscreen, p, conscol, ZP, memdefont, greet);
window.min.y += h+6;
curpos = window.min;
window.max.y = window.min.y+((window.max.y-window.min.y)/h)*h;
flushmemscreen(gscreen->r);
drawqunlock();
}
void
screeninit(void)
{
int fmt;
int dx, dy;
memimageinit();
if(depth == 0)
depth = GetDeviceCaps(GetDC(NULL), BITSPIXEL);
switch(depth){
case 32:
screen.dibtype = DIB_RGB_COLORS;
screen.depth = 32;
fmt = XRGB32;
break;
case 24:
screen.dibtype = DIB_RGB_COLORS;
screen.depth = 24;
fmt = RGB24;
break;
case 16:
screen.dibtype = DIB_RGB_COLORS;
screen.depth = 16;
fmt = RGB15; /* [sic] */
break;
case 8:
default:
screen.dibtype = DIB_PAL_COLORS;
screen.depth = 8;
depth = 8;
fmt = CMAP8;
break;
}
dx = GetDeviceCaps(GetDC(NULL), HORZRES);
dy = GetDeviceCaps(GetDC(NULL), VERTRES);
gscreen = allocmemimage(Rect(0,0,dx,dy), fmt);
kproc("winscreen", winproc, 0);
ksleep(&rend, isready, 0);
}
void
screeninit(int x, int y, char *chanstr)
{
Point p, q;
char *greet;
char buf[128];
Memimage *grey;
Rectangle r;
int chan;
cursorver = 0;
memimageinit();
chan = strtochan(chanstr);
if(chan == 0)
error("bad screen channel string");
r = Rect(0, 0, x, y);
gscreen = allocmemimage(r, chan);
if(gscreen == nil){
snprint(buf, sizeof buf, "can't allocate screen image: %r");
error(buf);
}
offscreen = Pt(x + 100, y + 100);
cursorr = Rect(0, 0, CURSORDIM, CURSORDIM);
cursorset = allocmemimage(cursorr, GREY8);
cursorclear = allocmemimage(cursorr, GREY1);
if(cursorset == nil || cursorclear == nil){
freememimage(gscreen);
freememimage(cursorset);
freememimage(cursorclear);
gscreen = nil;
cursorset = nil;
cursorclear = nil;
snprint(buf, sizeof buf, "can't allocate cursor images: %r");
error(buf);
}
drawlock();
/*
* set up goo for screenputs
*/
memdefont = getmemdefont();
back = memwhite;
conscol = memblack;
/* a lot of work to get a grey color */
curscol = allocmemimage(Rect(0,0,1,1), RGBA32);
curscol->flags |= Frepl;
curscol->clipr = gscreen->r;
memfillcolor(curscol, 0xff0000ff);
memfillcolor(gscreen, 0x444488FF);
w = memdefont->info[' '].width;
h = memdefont->height;
window.min = addpt(gscreen->r.min, Pt(20,20));
window.max.x = window.min.x + Dx(gscreen->r)*3/4-40;
window.max.y = window.min.y + Dy(gscreen->r)*3/4-100;
memimagedraw(gscreen, window, memblack, ZP, memopaque, ZP, S);
window = insetrect(window, 4);
memimagedraw(gscreen, window, memwhite, ZP, memopaque, ZP, S);
/* a lot of work to get a grey color */
grey = allocmemimage(Rect(0,0,1,1), CMAP8);
grey->flags |= Frepl;
grey->clipr = gscreen->r;
memfillcolor(grey, 0xAAAAAAFF);
memimagedraw(gscreen, Rect(window.min.x, window.min.y,
window.max.x, window.min.y+h+5+6), grey, ZP, nil, ZP, S);
freememimage(grey);
window = insetrect(window, 5);
greet = " Plan 9 Console ";
p = addpt(window.min, Pt(10, 0));
q = memsubfontwidth(memdefont, greet);
memimagestring(gscreen, p, conscol, ZP, memdefont, greet);
window.min.y += h+6;
curpos = window.min;
window.max.y = window.min.y+((window.max.y-window.min.y)/h)*h;
flushmemscreen(gscreen->r);
drawunlock();
setcursor(&arrow);
}
/*
* Place i so i->r.min = log, i->layer->screenr.min == scr.
*/
int
memlorigin(Memimage *i, Point log, Point scr)
{
Memlayer *l;
Memscreen *s;
Memimage *t, *shad, *nsave;
Rectangle x, newr, oldr;
Point delta;
int overlap, eqlog, eqscr, wasclear;
l = i->layer;
s = l->screen;
oldr = l->screenr;
newr = Rect(scr.x, scr.y, scr.x+Dx(oldr), scr.y+Dy(oldr));
eqscr = eqpt(scr, oldr.min);
eqlog = eqpt(log, i->r.min);
if(eqscr && eqlog)
return 0;
nsave = nil;
if(eqlog==0 && l->save!=nil){
nsave = allocmemimage(Rect(log.x, log.y, log.x+Dx(oldr), log.y+Dy(oldr)), i->chan);
if(nsave == nil)
return -1;
}
/*
* Bring it to front and move logical coordinate system.
*/
memltofront(i);
wasclear = l->clear;
if(nsave){
if(!wasclear)
memimagedraw(nsave, nsave->r, l->save, l->save->r.min, nil, Pt(0,0), S);
freememimage(l->save);
l->save = nsave;
}
delta = subpt(log, i->r.min);
i->r = rectaddpt(i->r, delta);
i->clipr = rectaddpt(i->clipr, delta);
l->delta = subpt(l->screenr.min, i->r.min);
if(eqscr)
return 0;
/*
* To clean up old position, make a shadow window there, don't paint it,
* push it behind this one, and (later) delete it. Because the refresh function
* for this fake window is a no-op, this will cause no graphics action except
* to restore the background and expose the windows previously hidden.
*/
shad = memlalloc(s, oldr, memlnorefresh, nil, DNofill);
if(shad == nil)
return -1;
s->frontmost = i;
if(s->rearmost == i)
s->rearmost = shad;
else
l->rear->layer->front = shad;
shad->layer->front = i;
shad->layer->rear = l->rear;
l->rear = shad;
l->front = nil;
shad->layer->clear = 0;
/*
* Shadow is now holding down the fort at the old position.
* Move the window and hide things obscured by new position.
*/
for(t=l->rear->layer->rear; t!=nil; t=t->layer->rear){
x = newr;
overlap = rectclip(&x, t->layer->screenr);
if(overlap){
memlhide(t, x);
t->layer->clear = 0;
}
}
l->screenr = newr;
l->delta = subpt(scr, i->r.min);
l->clear = rectinrect(newr, l->screen->image->clipr);
/*
* Everything's covered. Copy to new position and delete shadow window.
*/
if(wasclear)
memdraw(s->image, newr, s->image, oldr.min, nil, Pt(0,0), S);
else
memlexpose(i, newr);
memldelete(shad);
return 1;
}
void
main(int argc, char *argv[])
{
char *tostr, *file;
int fd, uncompressed;
ulong tochan;
Memimage *m, *n;
tostr = nil;
uncompressed = 0;
ARGBEGIN{
case 'c':
tostr = EARGF(usage());
break;
case 'u':
uncompressed = 1;
break;
default:
usage();
}ARGEND
memimageinit();
file = "<stdin>";
m = nil;
switch(argc){
case 0:
m = readmemimage(0);
break;
case 1:
file = argv[0];
fd = open(file, OREAD);
if(fd < 0)
sysfatal("can't open %s: %r", file);
m = readmemimage(fd);
close(fd);
break;
default:
usage();
}
if(m == nil)
sysfatal("can't read %s: %r", file);
if(tostr == nil)
tochan = m->chan;
else{
tochan = strtochan(tostr);
if(tochan == 0)
sysfatal("bad channel descriptor '%s'", tostr);
}
n = allocmemimage(m->r, tochan);
if(n == nil)
sysfatal("can't allocate new image: %r");
memimagedraw(n, n->r, m, m->r.min, nil, ZP, S);
if(uncompressed)
writeuncompressed(1, n);
else
writememimage(1, n);
exits(nil);
}
int
image2psfile(int fd, Memimage *im, int dpi) {
Rectangle r;
Rectangle bbox;
int e;
int xmargin = 36;
int ymargin = 36;
double paperaspectratio;
double imageaspectratio;
Biobuf ioutb;
Memimage *tmp;
if(im->depth >= 8 && im->chan != CMAP8 && im->chan != GREY8){
/*
* the postscript libraries can only handle [1248]-bit grey, 8-bit cmap,
* and 24-bit color, so convert.
*/
tmp = allocmemimage(im->r, strtochan("b8g8r8"));
if(tmp == nil)
return 1;
memimagedraw(tmp, tmp->r, im, im->r.min, nil, ZP, S);
freememimage(im);
im = tmp;
}
Binit(&ioutb, fd, OWRITE);
r = im->r;
width = Dx(r);
height = Dy(r);
imageaspectratio = (double) width / (double) height;
if (landscape) {
paperaspectratio = ((double)paperlength - (ymargin * 2)) / ((double)paperwidth - (xmargin * 2));
if (dpi > 0) {
iwidth = width * 72 / dpi;
iheight = height * 72 / dpi;
} else if (imageaspectratio > paperaspectratio) {
iwidth = paperlength - (ymargin * 2);
iheight = iwidth / imageaspectratio;
} else {
iheight = paperwidth - (xmargin * 2);
iwidth = iheight * imageaspectratio;
}
xstart = paperwidth - xmargin - (iheight * ymagnification);
ystart = paperlength - ymargin;
rotation = -90;
} else {
paperaspectratio = ((double)paperwidth - (xmargin * 2)) / ((double)paperlength - (ymargin * 2));
if (dpi > 0) {
iwidth = width * 72 / dpi;
iheight = height * 72 / dpi;
} else if (imageaspectratio > paperaspectratio) {
iwidth = paperwidth - (xmargin * 2);
iheight = iwidth / imageaspectratio;
} else {
iheight = paperlength - (ymargin * 2);
iwidth = iheight * imageaspectratio;
}
xstart = xmargin;
ystart = paperlength - ymargin - (iheight * ymagnification);
rotation = 0;
}
bbox = Rect(xstart,ystart,xstart+iwidth,ystart+iheight);
e = preamble(&ioutb, bbox);
if(e != 0)
return e;
Bprint(&ioutb, "%%%%Page: 1\n%%%%BeginPageSetup\n");
Bprint(&ioutb, "/pgsave save def\n");
Bprint(&ioutb, "%%%%EndPageSetup\n");
bps = im->depth;
Bprint(&ioutb, "%d 0 %d %d %d %d %d %d %s doimage\n", iheight, iwidth, ystart, xstart, height, width, bps, im->flags&Fgrey ? "true" : "false");
imagebits(&ioutb, im);
Bprint(&ioutb, "pgsave restore\nshowpage\n");
e = trailer(&ioutb, 1);
if(e != 0)
return e;
Bterm(&ioutb);
return 0;
}
void
imagebits(Biobuf *ioutb, Memimage *im)
{
int spb;
int bitoff;
int j, n, n4, i, bpl, nrest;
int lsf;
uchar c85[6], *data, *src, *dst;
Memimage *tmp;
Rectangle r;
tmp = nil;
if (debug)
fprint(2, "imagebits, r=%d %d %d %d, depth=%d\n",
im->r.min.x, im->r.min.y, im->r.max.x, im->r.max.y, im->depth);
width = Dx(im->r);
height = Dy(im->r);
bps = im->depth; /* # bits per sample */
bitoff = 0; /* # bit offset of beginning sample within first byte */
if (bps < 8) {
spb = 8 / bps;
bitoff = (im->r.min.x % spb) * bps;
}
if (bitoff != 0) {
/* # Postscript image wants beginning of line at beginning of byte */
r = im->r;
r.min.x -= bitoff/im->depth;
r.max.x -= bitoff/im->depth;
tmp = allocmemimage(r, im->chan);
if(tmp == nil){
fprint(2, "p9bitpost: allocmemimage failed: %r\n");
exits("alloc");
}
memimagedraw(tmp, r, im, im->r.min, nil, ZP, S);
im = tmp;
}
lsf = 0;
/* compact data to remove word-boundary padding */
bpl = bytesperline(im->r, im->depth);
n = bpl*Dy(im->r);
data = malloc(n);
if(data == nil){
fprint(2, "p9bitpost: malloc failed: %r\n");
exits("malloc");
}
for(i=0; i<Dy(im->r); i++){
/* memmove(data+bpl*i, byteaddr(im, Pt(im->r.min.x, im->r.min.y+i)), bpl); with inversion */
dst = data+bpl*i;
src = byteaddr(im, Pt(im->r.min.x, im->r.min.y+i));
for(j=0; j<bpl; j++)
*dst++ = 255 - *src++;
}
n4 = (n / 4) * 4;
for (i = 0; i < n4; i += 4){
cmap2ascii85(data+i, c85);
lsf += strlen((char *)c85);
Bprint(ioutb, "%s", (char *)c85);
if (lsf > 74) {
Bprint(ioutb, "\n");
lsf = 0;
}
}
nrest = n - n4;
if (nrest != 0) {
uchar foo[4];
for (i=0; i<nrest; i++)
foo[i] = data[n4+i];
for (i=nrest; i<4; i++)
foo[i] = '\0';
cmap2ascii85(foo, c85);
if (strcmp((char *)c85, "z") == 0 )
strcpy((char *)c85, "!!!!!");
Bprint(ioutb, "%.*s", nrest+1, (char *)c85);
}
Bprint(ioutb, "\n~>");
Bprint(ioutb, "\n");
freememimage(tmp);
}
/*
* make a "wedge" mask covering the desired angle and contained in
* a surrounding square; draw a full ellipse; intersect that with the
* wedge to make a mask through which to copy src to dst.
*/
void
memarc(Memimage *dst, Point c, int a, int b, int t, Memimage *src, Point sp, int alpha, int phi, int op)
{
int i, w, beta, tmp, c1, c2, m, m1;
Rectangle rect;
Point p, bnd[8];
Memimage *wedge, *figure, *mask;
if(a < 0)
a = -a;
if(b < 0)
b = -b;
w = t;
if(w < 0)
w = 0;
alpha = -alpha; /* compensate for upside-down coords */
phi = -phi;
beta = alpha + phi;
if(phi < 0){
tmp = alpha;
alpha = beta;
beta = tmp;
phi = -phi;
}
if(phi >= 360){
memellipse(dst, c, a, b, t, src, sp, op);
return;
}
while(alpha < 0)
alpha += 360;
while(beta < 0)
beta += 360;
c1 = alpha/90 & 3; /* number of nearest corner */
c2 = beta/90 & 3;
/*
* icossin returns point at radius ICOSSCALE.
* multiplying by m1 moves it outside the ellipse
*/
rect = Rect(-a-w, -b-w, a+w+1, b+w+1);
m = rect.max.x; /* inradius of bounding square */
if(m < rect.max.y)
m = rect.max.y;
m1 = (m+ICOSSCALE-1) >> 10;
m = m1 << 10; /* assure m1*cossin is inside */
i = 0;
bnd[i++] = Pt(0,0);
icossin(alpha, &p.x, &p.y);
bnd[i++] = mulpt(p, m1);
for(;;) {
bnd[i++] = mulpt(corners[c1], m);
if(c1==c2 && phi<180)
break;
c1 = (c1+1) & 3;
phi -= 90;
}
icossin(beta, &p.x, &p.y);
bnd[i++] = mulpt(p, m1);
figure = nil;
mask = nil;
wedge = allocmemimage(rect, GREY1);
if(wedge == nil)
goto Return;
memfillcolor(wedge, DTransparent);
memfillpoly(wedge, bnd, i, ~0, memopaque, p00, S);
figure = allocmemimage(rect, GREY1);
if(figure == nil)
goto Return;
memfillcolor(figure, DTransparent);
memellipse(figure, p00, a, b, t, memopaque, p00, S);
mask = allocmemimage(rect, GREY1);
if(mask == nil)
goto Return;
memfillcolor(mask, DTransparent);
memimagedraw(mask, rect, figure, rect.min, wedge, rect.min, S);
c = subpt(c, dst->r.min);
memdraw(dst, dst->r, src, subpt(sp, c), mask, subpt(p00, c), op);
Return:
freememimage(wedge);
freememimage(figure);
freememimage(mask);
}
Memimage*
statgraph(Graph *g)
{
int i, nbin, x, lo, hi, min, max, first;
Memimage *m;
Rectangle r;
Statbin *b, bin[2000]; /* 32 kB, but whack is worse */
needstack(8192); /* double check that bin didn't kill us */
if(g->wid <= MinWidth)
g->wid = DefaultWidth;
if(g->ht <= MinHeight)
g->ht = DefaultHeight;
if(g->wid > nelem(bin))
g->wid = nelem(bin);
if(g->fill < 0)
g->fill = ((uint)(uintptr)g->arg>>8)%nelem(lofill);
if(g->fill > nelem(lofill))
g->fill %= nelem(lofill);
nbin = g->wid - (Left+Right);
binstats(g->fn, g->arg, g->t0, g->t1, bin, nbin);
/*
* compute bounds
*/
min = g->min;
max = g->max;
if(min < 0 || max <= min){
min = max = 0;
first = 1;
for(i=0; i<nbin; i++){
b = &bin[i];
if(b->nsamp == 0)
continue;
if(first || b->min < min)
min = b->min;
if(first || b->max > max)
max = b->max;
first = 0;
}
}
qlock(&memdrawlock);
ginit();
if(smallfont==nil || black==nil || blue==nil || red==nil || hifill[0]==nil || lofill[0]==nil){
werrstr("graphics initialization failed: %r");
qunlock(&memdrawlock);
return nil;
}
/* fresh image */
m = allocmemimage(Rect(0,0,g->wid,g->ht), ABGR32);
if(m == nil){
qunlock(&memdrawlock);
return nil;
}
r = Rect(Left, Top, g->wid-Right, g->ht-Bottom);
memfillcolor(m, DTransparent);
/* x axis */
memimagedraw(m, Rect(r.min.x, r.max.y, r.max.x, r.max.y+1), black, ZP, memopaque, ZP, S);
/* y labels */
drawlabel(m, r.min, max);
if(min != 0)
drawlabel(m, Pt(r.min.x, r.max.y-smallfont->height), min);
/* actual data */
for(i=0; i<nbin; i++){
b = &bin[i];
if(b->nsamp == 0)
continue;
lo = scalept(b->min, min, max, r.max.y, r.min.y);
hi = scalept(b->max, min, max, r.max.y, r.min.y);
x = r.min.x+i;
hi-=2;
memimagedraw(m, Rect(x, hi, x+1,lo), hifill[g->fill%nelem(hifill)], ZP, memopaque, ZP, S);
memimagedraw(m, Rect(x, lo, x+1, r.max.y), lofill[g->fill%nelem(lofill)], ZP, memopaque, ZP, S);
}
if(bin[nbin-1].nsamp)
drawlabel(m, Pt(r.max.x, r.min.y+(Dy(r)-smallfont->height)/2), bin[nbin-1].avg);
qunlock(&memdrawlock);
return m;
}
Memimage*
memlalloc(Memscreen *s, Rectangle screenr, Refreshfn refreshfn, void *refreshptr, ulong val)
{
Memlayer *l;
Memimage *n;
static Memimage *paint;
if(paint == nil){
paint = allocmemimage(Rect(0,0,1,1), RGBA32);
if(paint == nil)
return nil;
paint->flags |= Frepl;
paint->clipr = Rect(-0x3FFFFFF, -0x3FFFFFF, 0x3FFFFFF, 0x3FFFFFF);
}
n = allocmemimaged(screenr, s->image->chan, s->image->data);
if(n == nil)
return nil;
l = malloc(sizeof(Memlayer));
if(l == nil){
free(n);
return nil;
}
l->screen = s;
if(refreshfn)
l->save = nil;
else{
l->save = allocmemimage(screenr, s->image->chan);
if(l->save == nil){
free(l);
free(n);
return nil;
}
/* allocmemimage doesn't initialize memory; this paints save area */
if(val != DNofill)
memfillcolor(l->save, val);
}
l->refreshfn = refreshfn;
l->refreshptr = nil; /* don't set it until we're done */
l->screenr = screenr;
l->delta = Pt(0,0);
n->data->ref++;
n->zero = s->image->zero;
n->width = s->image->width;
n->layer = l;
/* start with new window behind all existing ones */
l->front = s->rearmost;
l->rear = nil;
if(s->rearmost)
s->rearmost->layer->rear = n;
s->rearmost = n;
if(s->frontmost == nil)
s->frontmost = n;
l->clear = 0;
/* now pull new window to front */
_memltofrontfill(n, val != DNofill);
l->refreshptr = refreshptr;
/*
* paint with requested color; previously exposed areas are already right
* if this window has backing store, but just painting the whole thing is simplest.
*/
if(val != DNofill){
memsetchan(paint, n->chan);
memfillcolor(paint, val);
memdraw(n, n->r, paint, n->r.min, nil, n->r.min, S);
}
return n;
}
void
main(int argc, char **argv)
{
int fd, xsize, ysize;
Memimage *im, *nim;
ulong ochan, tchan;
xsize = ysize = 0;
ARGBEGIN{
case 'a':
xsize = ysize = getsize(EARGF(usage()));
break;
case 'x':
xsize = getsize(EARGF(usage()));
break;
case 'y':
ysize = getsize(EARGF(usage()));
break;
default:
usage();
}ARGEND
fd = 0;
if(*argv){
fd = open(*argv, OREAD);
if(fd < 0)
sysfatal("open: %r");
}
memimageinit();
if((im = readmemimage(fd)) == nil)
sysfatal("readmemimage: %r");
if(xsize & PERCENT)
xsize = ((xsize & ~PERCENT) * Dx(im->r)) / 100;
if(ysize & PERCENT)
ysize = ((ysize & ~PERCENT) * Dy(im->r)) / 100;
if(xsize || ysize){
if(ysize == 0)
ysize = (xsize * Dy(im->r)) / Dx(im->r);
if(xsize == 0)
xsize = (ysize * Dx(im->r)) / Dy(im->r);
ochan = im->chan;
switch(ochan){
default:
for(tchan = ochan; tchan; tchan >>= 8)
if(TYPE(tchan) == CAlpha){
tchan = RGBA32;
break;
}
if(tchan == 0)
tchan = RGB24;
break;
case GREY8:
case RGB24:
case RGBA32:
case ARGB32:
case XRGB32:
tchan = ochan;
break;
case GREY1:
case GREY2:
case GREY4:
tchan = GREY8;
break;
}
if(tchan != ochan){
if((nim = allocmemimage(im->r, tchan)) == nil)
sysfatal("allocimage: %r");
memimagedraw(nim, nim->r, im, im->r.min, nil, ZP, S);
freememimage(im);
im = nim;
}
if((nim = allocmemimage(
Rect(im->r.min.x, im->r.min.y, im->r.min.x+xsize, im->r.min.y+ysize),
tchan)) == nil)
sysfatal("allocmemimage: %r");
resample(nim, nim->r, im, im->r);
freememimage(im);
im = nim;
if(tchan != ochan){
if((im = allocmemimage(nim->r, ochan)) == nil)
sysfatal("allocimage: %r");
memimagedraw(im, im->r, nim, nim->r.min, nil, ZP, S);
freememimage(nim);
}
}
if(writememimage(1, im) < 0)
sysfatal("writememimage: %r");
exits(0);
}
Memsubfont*
mksubfont(XFont *f, char *name, int lo, int hi, int size, int antialias)
{
CFStringRef s;
CGColorSpaceRef color;
CGContextRef ctxt;
CTFontRef font;
CTFontDescriptorRef desc;
CGRect bbox;
Memimage *m, *mc, *m1;
int x, y, y0;
int i, height, ascent;
Fontchar *fc, *fc0;
Memsubfont *sf;
CGFloat whitef[] = { 1.0, 1.0 };
CGColorRef white;
s = c2mac(name);
desc = CTFontDescriptorCreateWithNameAndSize(s, size);
CFRelease(s);
if(desc == nil)
return nil;
font = CTFontCreateWithFontDescriptor(desc, 0, nil);
CFRelease(desc);
if(font == nil)
return nil;
bbox = CTFontGetBoundingBox(font);
x = (int)(bbox.size.width*2 + 0.99999999);
fontheight(f, size, &height, &ascent);
y = height;
y0 = height - ascent;
m = allocmemimage(Rect(0, 0, x*(hi+1-lo)+1, y+1), GREY8);
if(m == nil)
return nil;
mc = allocmemimage(Rect(0, 0, x+1, y+1), GREY8);
if(mc == nil){
freememimage(m);
return nil;
}
memfillcolor(m, DBlack);
memfillcolor(mc, DBlack);
fc = malloc((hi+2 - lo) * sizeof fc[0]);
sf = malloc(sizeof *sf);
if(fc == nil || sf == nil) {
freememimage(m);
freememimage(mc);
free(fc);
free(sf);
return nil;
}
fc0 = fc;
color = CGColorSpaceCreateWithName(kCGColorSpaceGenericGray);
ctxt = CGBitmapContextCreate(byteaddr(mc, mc->r.min), Dx(mc->r), Dy(mc->r), 8,
mc->width*sizeof(u32int), color, kCGImageAlphaNone);
white = CGColorCreate(color, whitef);
CGColorSpaceRelease(color);
if(ctxt == nil) {
freememimage(m);
freememimage(mc);
free(fc);
free(sf);
return nil;
}
CGContextSetAllowsAntialiasing(ctxt, antialias);
CGContextSetTextPosition(ctxt, 0, 0); // XXX
#if OSX_VERSION >= 101400
CGContextSetAllowsFontSmoothing(ctxt, false);
#endif
x = 0;
for(i=lo; i<=hi; i++, fc++) {
char buf[20];
CFStringRef str;
CFDictionaryRef attrs;
CFAttributedStringRef attrString;
CTLineRef line;
CGRect r;
CGPoint p1;
CFStringRef keys[] = { kCTFontAttributeName, kCTForegroundColorAttributeName };
CFTypeRef values[] = { font, white };
sprint(buf, "%C", (Rune)mapUnicode(name, i));
str = c2mac(buf);
// See https://developer.apple.com/library/ios/documentation/StringsTextFonts/Conceptual/CoreText_Programming/LayoutOperations/LayoutOperations.html#//apple_ref/doc/uid/TP40005533-CH12-SW2
attrs = CFDictionaryCreate(kCFAllocatorDefault, (const void**)&keys,
(const void**)&values, sizeof(keys) / sizeof(keys[0]),
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
attrString = CFAttributedStringCreate(kCFAllocatorDefault, str, attrs);
CFRelease(str);
CFRelease(attrs);
line = CTLineCreateWithAttributedString(attrString);
CGContextSetTextPosition(ctxt, 0, y0);
r = CTLineGetImageBounds(line, ctxt);
memfillcolor(mc, DBlack);
CTLineDraw(line, ctxt);
CFRelease(line);
fc->x = x;
fc->top = 0;
fc->bottom = Dy(m->r);
// fprint(2, "printed %#x: %g %g\n", mapUnicode(i), p1.x, p1.y);
p1 = CGContextGetTextPosition(ctxt);
if(p1.x <= 0 || mapUnicode(name, i) == 0xfffd) {
fc->width = 0;
fc->left = 0;
if(i == 0) {
drawpjw(m, fc, x, (int)(bbox.size.width + 0.99999999), y, y - y0);
x += fc->width;
}
continue;
}
memimagedraw(m, Rect(x, 0, x + p1.x, y), mc, ZP, memopaque, ZP, S);
fc->width = p1.x;
fc->left = 0;
x += p1.x;
}
fc->x = x;
// round up to 32-bit boundary
// so that in-memory data is same
// layout as in-file data.
if(x == 0)
x = 1;
if(y == 0)
y = 1;
if(antialias)
x += -x & 3;
else
x += -x & 31;
m1 = allocmemimage(Rect(0, 0, x, y), antialias ? GREY8 : GREY1);
memimagedraw(m1, m1->r, m, m->r.min, memopaque, ZP, S);
freememimage(m);
freememimage(mc);
sf->name = nil;
sf->n = hi+1 - lo;
sf->height = Dy(m1->r);
sf->ascent = Dy(m1->r) - y0;
sf->info = fc0;
sf->bits = m1;
return sf;
}
