summaryrefslogtreecommitdiff
path: root/emu/Plan9/win.c
diff options
context:
space:
mode:
Diffstat (limited to 'emu/Plan9/win.c')
-rw-r--r--emu/Plan9/win.c564
1 files changed, 564 insertions, 0 deletions
diff --git a/emu/Plan9/win.c b/emu/Plan9/win.c
new file mode 100644
index 00000000..2f280853
--- /dev/null
+++ b/emu/Plan9/win.c
@@ -0,0 +1,564 @@
+#include "dat.h"
+#include "fns.h"
+#include "kernel.h"
+#include "error.h"
+
+#include <draw.h>
+#include <memdraw.h>
+#include <cursor.h>
+#include "keyboard.h"
+
+enum
+{
+ Margin = 4,
+ Lsize = 100,
+};
+
+extern Memimage *screenimage;
+
+static ulong* attachwindow(Rectangle*, ulong*, int*, int*);
+
+static void plan9readmouse(void*);
+static void plan9readkeybd(void*);
+static int mapspecials(char *s1, char *s2, int *n);
+
+int usenewwin = 1;
+int kbdiscons;
+static int truedepth;
+
+static int datafd;
+static int ctlfd;
+static int mousefd = -1;
+static int keybdfd;
+static int mousepid = -1;
+static int keybdpid = -1;
+static int cursfd;
+static char winname[64];
+
+/* Following updated by attachwindow() asynchronously */
+static QLock ql;
+static Rectangle tiler;
+static ulong* data;
+static uchar* loadbuf;
+static int cursfd;
+static int imageid;
+static Rectangle imager;
+static uchar *chunk;
+static int chunksize;
+static int dispbufsize;
+
+#define NINFO 12*12
+#define HDR 21
+
+
+void
+killrefresh(void)
+{
+ if(mousepid < 0)
+ return;
+ close(mousefd);
+ close(ctlfd);
+ close(datafd);
+ postnote(PNPROC, mousepid, Eintr);
+ postnote(PNPROC, keybdpid, Eintr);
+}
+
+uchar*
+attachscreen(Rectangle *r, ulong *chan, int *d, int *width, int *softscreen)
+{
+ int fd;
+ char *p, buf[128], info[NINFO+1];
+
+ if(usenewwin){
+ p = getenv("wsys");
+ if(p == nil)
+ return nil;
+
+ fd = open(p, ORDWR);
+ if(fd < 0) {
+ fprint(2, "attachscreen: can't open window manager: %r\n");
+ return nil;
+ }
+ sprint(buf, "new -dx %d -dy %d", Xsize+2*Margin, Ysize+2*Margin);
+ if(mount(fd, -1, "/mnt/wsys", MREPL, buf) < 0) {
+ fprint(2, "attachscreen: can't mount window manager: %r\n");
+ return nil;
+ }
+ if(bind("/mnt/wsys", "/dev", MBEFORE) < 0){
+ fprint(2, "attachscreen: can't bind /mnt/wsys before /dev: %r\n");
+ return nil;
+ }
+ }
+
+ cursfd = open("/dev/cursor", OWRITE);
+ if(cursfd < 0) {
+ fprint(2, "attachscreen: open cursor: %r\n");
+ return nil;
+ }
+
+ /* Set up graphics window console (chars->gkbdq) */
+ keybdfd = open("/dev/cons", OREAD);
+ if(keybdfd < 0) {
+ fprint(2, "attachscreen: open keyboard: %r\n");
+ return nil;
+ }
+ mousefd = open("/dev/mouse", ORDWR);
+ if(mousefd < 0){
+ fprint(2, "attachscreen: can't open mouse: %r\n");
+ return nil;
+ }
+ if(usenewwin || 1){
+ fd = open("/dev/consctl", OWRITE);
+ if(fd < 0)
+ fprint(2, "attachscreen: open /dev/consctl: %r\n");
+ if(write(fd, "rawon", 5) != 5)
+ fprint(2, "attachscreen: write /dev/consctl: %r\n");
+ }
+
+ /* Set up graphics files */
+ ctlfd = open("/dev/draw/new", ORDWR);
+ if(ctlfd < 0){
+ fprint(2, "attachscreen: can't open graphics control file: %r\n");
+ return nil;
+ }
+ if(read(ctlfd, info, sizeof info) < NINFO){
+ close(ctlfd);
+ fprint(2, "attachscreen: can't read graphics control file: %r\n");
+ return nil;
+ }
+ sprint(buf, "/dev/draw/%d/data", atoi(info+0*12));
+ datafd = open(buf, ORDWR|OCEXEC);
+ if(datafd < 0){
+ close(ctlfd);
+ fprint(2, "attachscreen: can't read graphics data file: %r\n");
+ return nil;
+ }
+ dispbufsize = iounit(datafd);
+ if(dispbufsize <= 0)
+ dispbufsize = 8000;
+ if(dispbufsize < 512){
+ close(ctlfd);
+ close(datafd);
+ fprint(2, "attachscreen: iounit %d too small\n", dispbufsize);
+ return nil;
+ }
+ chunksize = dispbufsize - 64;
+
+ if(attachwindow(r, chan, d, width) == nil){
+ close(ctlfd);
+ close(datafd);
+ return nil;
+ }
+
+ mousepid = kproc("readmouse", plan9readmouse, nil, 0);
+ keybdpid = kproc("readkbd", plan9readkeybd, nil, 0);
+
+ fd = open("/dev/label", OWRITE);
+ if(fd >= 0){
+ snprint(buf, sizeof(buf), "inferno %d", getpid());
+ write(fd, buf, strlen(buf));
+ close(fd);
+ }
+
+ *softscreen = 1;
+ return (uchar*)data;
+}
+
+static ulong*
+attachwindow(Rectangle *r, ulong *chan, int *d, int *width)
+{
+ int n, fd, nb;
+ char buf[256];
+ uchar ubuf[128];
+ ulong imagechan;
+
+ /*
+ * Discover name of window
+ */
+ fd = open("/mnt/wsys/winname", OREAD);
+ if(fd<0 || (n=read(fd, winname, sizeof winname))<=0){
+ fprint(2, "attachwindow: can only run inferno under rio, not stand-alone\n");
+ return nil;
+ }
+ close(fd);
+ /*
+ * If had previous window, release it
+ */
+ if(imageid > 0){
+ ubuf[0] = 'f';
+ BPLONG(ubuf+1, imageid);
+ if(write(datafd, ubuf, 1+4) != 1+4)
+ fprint(2, "attachwindow: cannot free old window: %r\n");
+ }
+ /*
+ * Allocate image pointing to window, and discover its ID
+ */
+ ubuf[0] = 'n';
+ ++imageid;
+ BPLONG(ubuf+1, imageid);
+ ubuf[5] = n;
+ memmove(ubuf+6, winname, n);
+ if(write(datafd, ubuf, 6+n) != 6+n){
+ fprint(2, "attachwindow: cannot bind %d to window id '%s': %r\n", imageid, winname);
+ return nil;
+ }
+ if(read(ctlfd, buf, sizeof buf) < 12*12){
+ fprint(2, "attachwindow: cannot read window id: %r\n");
+ return nil;
+ }
+ imagechan = strtochan(buf+2*12);
+ truedepth = chantodepth(imagechan);
+ if(truedepth == 0){
+ fprint(2, "attachwindow: cannot handle window depth specifier %.12s\n", buf+2*12);
+ return nil;
+ }
+
+ /*
+ * Report back
+ */
+ if(chan != nil)
+ *chan = imagechan;
+ if(d != nil)
+ *d = chantodepth(imagechan);
+ nb = 0;
+ if(r != nil){
+ Xsize = atoi(buf+6*12)-atoi(buf+4*12)-2*Margin;
+ Ysize = atoi(buf+7*12)-atoi(buf+5*12)-2*Margin;
+ r->min.x = 0;
+ r->min.y = 0;
+ r->max.x = Xsize;
+ r->max.y = Ysize;
+ nb = bytesperline(*r, truedepth);
+ data = malloc(nb*Ysize);
+ loadbuf = malloc(nb*Lsize+1);
+ chunk = malloc(HDR+chunksize+5); /* +5 for flush (1 old, 5 new) */
+ }
+ imager.min.x = atoi(buf+4*12);
+ imager.min.y = atoi(buf+5*12);
+ imager.max.x = atoi(buf+6*12);
+ imager.max.y = atoi(buf+7*12);
+
+ if(width != nil)
+ *width = nb/4;
+
+ tiler.min.x = atoi(buf+4*12)+Margin;
+ tiler.min.y = atoi(buf+5*12)+Margin;
+ tiler.max.x = atoi(buf+6*12)-Margin;
+ tiler.max.y = atoi(buf+7*12)-Margin;
+
+ return data;
+}
+
+static int
+plan9loadimage(Rectangle r, uchar *data, int ndata)
+{
+ long dy;
+ int n, bpl;
+
+ if(!rectinrect(r, imager)){
+ werrstr("loadimage: bad rectangle");
+ return -1;
+ }
+ bpl = bytesperline(r, truedepth);
+ n = bpl*Dy(r);
+ if(n > ndata){
+ werrstr("loadimage: insufficient data");
+ return -1;
+ }
+ ndata = 0;
+ while(r.max.y > r.min.y){
+ dy = r.max.y - r.min.y;
+ if(dy*bpl> chunksize)
+ dy = chunksize/bpl;
+ n = dy*bpl;
+ chunk[0] = 'y';
+ BPLONG(chunk+1, imageid);
+ BPLONG(chunk+5, r.min.x);
+ BPLONG(chunk+9, r.min.y);
+ BPLONG(chunk+13, r.max.x);
+ BPLONG(chunk+17, r.min.y+dy);
+ memmove(chunk+21, data, n);
+ ndata += n;
+ data += n;
+ r.min.y += dy;
+ n += 21;
+ if(r.min.y >= r.max.y) /* flush to screen */
+ chunk[n++] = 'v';
+ if(write(datafd, chunk, n) != n)
+ return -1;
+ }
+ return ndata;
+}
+
+static void
+_flushmemscreen(Rectangle r)
+{
+ int n, dy, l;
+ Rectangle rr;
+
+ if(data == nil || loadbuf == nil || chunk==nil)
+ return;
+ if(!rectclip(&r, Rect(0, 0, Xsize, Ysize)))
+ return;
+ if(!rectclip(&r, Rect(0, 0, Dx(tiler), Dy(tiler))))
+ return;
+ if(Dx(r)<=0 || Dy(r)<=0)
+ return;
+ l = bytesperline(r, truedepth);
+ while(r.min.y < r.max.y){
+ dy = Dy(r);
+ if(dy > Lsize)
+ dy = Lsize;
+ rr = r;
+ rr.max.y = rr.min.y+dy;
+ n = unloadmemimage(screenimage, rr, loadbuf, l*dy);
+ /* offset from (0,0) to window */
+ rr.min.x += tiler.min.x;
+ rr.min.y += tiler.min.y;
+ rr.max.x += tiler.min.x;
+ rr.max.y += tiler.min.y;
+ if(plan9loadimage(rr, loadbuf, n) != n)
+ fprint(2, "flushmemscreen: %d bytes: %r\n", n);
+ r.min.y += dy;
+ }
+}
+
+void
+flushmemscreen(Rectangle r)
+{
+ qlock(&ql);
+ _flushmemscreen(r);
+ qunlock(&ql);
+}
+
+void
+drawcursor(Drawcursor *c)
+{
+ int j, i, h, w, bpl;
+ uchar *bc, *bs, *cclr, *cset, curs[2*4+2*2*16];
+
+ /* Set the default system cursor */
+ if(c->data == nil) {
+ write(cursfd, curs, 0);
+ return;
+ }
+
+ BPLONG(curs+0*4, c->hotx);
+ BPLONG(curs+1*4, c->hoty);
+
+ w = (c->maxx-c->minx);
+ h = (c->maxy-c->miny)/2;
+
+ cclr = curs+2*4;
+ cset = curs+2*4+2*16;
+ bpl = bytesperline(Rect(c->minx, c->miny, c->maxx, c->maxy), 1);
+ bc = c->data;
+ bs = c->data + h*bpl;
+
+ if(h > 16)
+ h = 16;
+ if(w > 16)
+ w = 16;
+ w /= 8;
+ for(i = 0; i < h; i++) {
+ for(j = 0; j < w; j++) {
+ cclr[j] = bc[j];
+ cset[j] = bs[j];
+ }
+ bc += bpl;
+ bs += bpl;
+ cclr += 2;
+ cset += 2;
+ }
+ write(cursfd, curs, sizeof curs);
+}
+
+static int
+checkmouse(char *buf, int n)
+{
+ int x, y, tick, b;
+ static int lastb, lastt, lastx, lasty, lastclick;
+
+ switch(n){
+ default:
+ kwerrstr("atomouse: bad count");
+ return -1;
+
+ case 1+4*12:
+ if(buf[0] == 'r'){
+ qlock(&ql);
+ if(attachwindow(nil, nil, nil, nil) == nil) {
+ qunlock(&ql);
+ return -1;
+ }
+ _flushmemscreen(Rect(0, 0, Xsize, Ysize));
+ qunlock(&ql);
+ }
+ x = atoi(buf+1+0*12) - tiler.min.x;
+ y = atoi(buf+1+1*12) - tiler.min.y;
+ b = atoi(buf+1+2*12);
+ tick = atoi(buf+1+3*12);
+ if(b && lastb == 0){ /* button newly pressed */
+ if(b==lastclick && tick-lastt<400
+ && abs(x-lastx)<10 && abs(y-lasty)<10)
+ b |= (1<<8);
+ lastt = tick;
+ lastclick = b&0xff;
+ lastx = x;
+ lasty = y;
+ }
+ lastb = b&0xff;
+ //mouse.msec = tick;
+ mousetrack(b, x, y, 0);
+ return n;
+ }
+}
+
+static void
+plan9readmouse(void *v)
+{
+ int n;
+ char buf[128];
+
+ USED(v);
+ for(;;){
+ n = read(mousefd, buf, sizeof(buf));
+ if(n < 0) /* probably interrupted */
+ _exits(0);
+ checkmouse(buf, n);
+ }
+}
+
+static void
+plan9readkeybd(void*)
+{
+ int n, partial;
+ char buf[32];
+ char dbuf[32 * 3]; /* overestimate but safe */
+
+ partial = 0;
+ for(;;){
+ n = read(keybdfd, buf + partial, sizeof(buf) - partial);
+ if(n < 0) /* probably interrupted */
+ _exits(0);
+ partial += n;
+ n = mapspecials(dbuf, buf, &partial);
+ qproduce(gkbdq, dbuf, n);
+ }
+}
+
+void
+setpointer(int x, int y)
+{
+ char buf[50];
+ int n;
+
+ if(mousefd < 0)
+ return;
+ x += tiler.min.x;
+ y += tiler.min.y;
+ n = snprint(buf, sizeof buf, "m%11d %11d ", x, y);
+ write(mousefd, buf, n);
+}
+
+/*
+ * plan9 keyboard codes; from /sys/include/keyboard.h; can't include directly
+ * because constant names clash.
+ */
+enum {
+ P9KF= 0xF000, /* Rune: beginning of private Unicode space */
+ P9Spec= 0xF800,
+ /* KF|1, KF|2, ..., KF|0xC is F1, F2, ..., F12 */
+ Khome= P9KF|0x0D,
+ Kup= P9KF|0x0E,
+ Kpgup= P9KF|0x0F,
+ Kprint= P9KF|0x10,
+ Kleft= P9KF|0x11,
+ Kright= P9KF|0x12,
+ Kdown= P9Spec|0x00,
+ Kview= P9Spec|0x00,
+ Kpgdown= P9KF|0x13,
+ Kins= P9KF|0x14,
+ Kend= KF|0x18,
+
+ Kalt= P9KF|0x15,
+ Kshift= P9KF|0x16,
+ Kctl= P9KF|0x17,
+};
+
+/*
+ * translate plan 9 special characters from s2 (of length *n) into s1;
+ * return number of chars placed into s1.
+ * any trailing incomplete chars are moved to the beginning of s2,
+ * and *n set to the number moved there.
+ */
+static int
+mapspecials(char *s1, char *s2, int *n)
+{
+ char *s, *d, *es2;
+ Rune r;
+ d = s1;
+ s = s2;
+ es2 = s2 + *n;
+ while (fullrune(s, es2 - s)) {
+ s += chartorune(&r, s);
+ switch (r) {
+ case Kshift:
+ r = LShift;
+ break;
+ case Kctl:
+ r = LCtrl;
+ break;
+ case Kalt:
+ r = LAlt;
+ break;
+ case Khome:
+ r = Home;
+ break;
+ case Kend:
+ r = End;
+ break;
+ case Kup:
+ r = Up;
+ break;
+ case Kdown:
+ r = Down;
+ break;
+ case Kleft:
+ r = Left;
+ break;
+ case Kright:
+ r = Right;
+ break;
+ case Kpgup:
+ r = Pgup;
+ break;
+ case Kpgdown:
+ r = Pgdown;
+ break;
+ case Kins:
+ r = Ins;
+ break;
+ /*
+ * function keys
+ */
+ case P9KF|1:
+ case P9KF|2:
+ case P9KF|3:
+ case P9KF|4:
+ case P9KF|5:
+ case P9KF|6:
+ case P9KF|7:
+ case P9KF|8:
+ case P9KF|9:
+ case P9KF|10:
+ case P9KF|11:
+ case P9KF|12:
+ r = (r - P9KF) + KF;
+ }
+ d += runetochar(d, &r);
+ }
+ *n = es2 - s;
+ memmove(s2, s, *n);
+ return d - s1;
+}
generated by cgit v1.2.3 (git 2.46.0) at 2025-12-10 09:50:27 +0000