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/* Copyright (c) 1997 Silicon Graphics, Inc. */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ SGI"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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|
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/* |
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* X11 driver for holodeck display. |
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* Based on rview driver. |
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*/ |
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|
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< |
#include "standard.h" |
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#include "rhd_qtree.h" |
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <X11/Xlib.h> |
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#include <X11/cursorfont.h> |
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#include <X11/Xutil.h> |
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#include <time.h> |
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#include "platform.h" |
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#include "rtmath.h" |
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#include "rterror.h" |
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#include "plocate.h" |
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#include "rhdisp.h" |
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#include "rhd_qtree.h" |
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#include "x11icon.h" |
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#ifndef RAYQLEN |
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#define GAMMA 2.2 /* default gamma correction */ |
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#define FRAMESTATE(s) (((s)&(ShiftMask|ControlMask))==(ShiftMask|ControlMask)) |
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|
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#define MOVPCT 7 /* percent distance to move /frame */ |
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#define MOVDIR(b) ((b)==Button1 ? 1 : (b)==Button2 ? 0 : -1) |
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#define MOVDEG (-5) /* degrees to orbit CW/down /frame */ |
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struct driver odev; /* global device driver structure */ |
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char odev_args[64]; /* command arguments */ |
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static XEvent currentevent; /* current event */ |
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static int ncolors = 0; /* color table size */ |
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static int headlocked = 0; /* lock vertical motion */ |
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static int getpixels(), xnewcolr(), freepixels(), resizewindow(), |
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getevent(), getkey(), moveview(), getmove(), fixwindow(); |
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static unsigned long true_pixel(); |
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static int mytmflags(void); |
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static void xnewcolr(int ndx, int r, int g, int b); |
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static int getpixels(void); |
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static void freepixels(void); |
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static unsigned long true_pixel(register BYTE rgb[3]); |
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static void getevent(void); |
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static int ilclip(int dp[2][2], FVECT wp[2]); |
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static void draw3dline(FVECT wp[2]); |
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static void draw_grids(void); |
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static int moveview(int dx, int dy, int mov, int orb); |
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static void getframe(XButtonPressedEvent *ebut); |
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static void waitabit(void); |
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static void getmove(XButtonPressedEvent *ebut); |
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static void getkey(register XKeyPressedEvent *ekey); |
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static void fixwindow(register XExposeEvent *eexp); |
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static void resizewindow(register XConfigureEvent *ersz); |
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static int |
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mytmflags() /* figure out tone mapping flags */ |
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mytmflags(void) /* figure out tone mapping flags */ |
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{ |
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extern char *progname; |
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register char *cp, *tail; |
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if (cp-tail == 4 && !strncmp(tail, "x11h", 4)) |
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return(TM_F_HUMAN|TM_F_NOSTDERR); |
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error(USER, "illegal driver name"); |
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return 0; /* pro forma return */ |
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} |
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dev_open(id) /* initialize X11 driver */ |
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char *id; |
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extern void |
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dev_open( /* initialize X11 driver */ |
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char *id |
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) |
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{ |
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extern char *getenv(); |
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static RGBPRIMS myprims = STDPRIMS; |
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char *ev; |
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double gamval = GAMMA; |
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DisplayWidth(ourdisplay, ourscreen); |
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pheight = (double)DisplayHeightMM(ourdisplay, ourscreen) / |
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DisplayHeight(ourdisplay, ourscreen); |
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copystruct(&odev.v, &stdview); |
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odev.v = stdview; |
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odev.v.type = VT_PER; |
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/* map the window and get its size */ |
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XMapWindow(ourdisplay, gwind); |
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} |
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dev_close() /* close our display */ |
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extern void |
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> |
dev_close(void) /* close our display */ |
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{ |
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freepixels(); |
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XFreeGC(ourdisplay, ourgc); |
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} |
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dev_clear() /* clear our quadtree */ |
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extern void |
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> |
dev_clear(void) /* clear our quadtree */ |
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{ |
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qtCompost(100); |
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if (ncolors > 0) |
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} |
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int |
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dev_view(nv) /* assign new driver view */ |
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VIEW *nv; |
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> |
extern int |
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> |
dev_view( /* assign new driver view */ |
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> |
VIEW *nv |
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> |
) |
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{ |
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if (nv->type == VT_PAR || /* check view legality */ |
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nv->horiz > 160. || nv->vert > 160.) { |
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XResizeWindow(ourdisplay, gwind, odev.hres, odev.vres); |
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dev_input(); /* wait for resize event */ |
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} |
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< |
copystruct(&odev.v, nv); |
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> |
odev.v = *nv; |
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} |
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qtReplant(); |
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return(1); |
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} |
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< |
int |
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dev_input() /* get X11 input */ |
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> |
extern void |
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> |
dev_section( /* add octree for geometry rendering */ |
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> |
char *ofn |
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> |
) |
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{ |
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/* unimplemented */ |
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} |
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|
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|
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extern void |
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dev_auxcom( /* process an auxiliary command */ |
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+ |
char *cmd, |
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+ |
char *args |
| 306 |
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) |
| 307 |
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{ |
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sprintf(errmsg, "%s: unknown command", cmd); |
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+ |
error(COMMAND, errmsg); |
| 310 |
+ |
} |
| 311 |
+ |
|
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|
| 313 |
+ |
extern VIEW * |
| 314 |
+ |
dev_auxview( /* return nth auxiliary view */ |
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+ |
int n, |
| 316 |
+ |
int hvres[2] |
| 317 |
+ |
) |
| 318 |
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{ |
| 319 |
+ |
if (n) |
| 320 |
+ |
return(NULL); |
| 321 |
+ |
hvres[0] = odev.hres; hvres[1] = odev.vres; |
| 322 |
+ |
return(&odev.v); |
| 323 |
+ |
} |
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+ |
|
| 325 |
+ |
|
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+ |
extern int |
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+ |
dev_input(void) /* get X11 input */ |
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+ |
{ |
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inpresflags = 0; |
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|
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do |
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getevent(); |
| 333 |
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|
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< |
while (XQLength(ourdisplay) > 0); |
| 334 |
> |
while (XPending(ourdisplay) > 0); |
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|
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+ |
odev.inpready = 0; |
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+ |
|
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return(inpresflags); |
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} |
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|
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dev_paintr(rgb, xmin, ymin, xmax, ymax) /* fill a rectangle */ |
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< |
BYTE rgb[3]; |
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< |
int xmin, ymin, xmax, ymax; |
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> |
extern void |
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> |
dev_paintr( /* fill a rectangle */ |
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> |
BYTE rgb[3], |
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> |
int xmin, |
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> |
int ymin, |
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> |
int xmax, |
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> |
int ymax |
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> |
) |
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{ |
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unsigned long pixel; |
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|
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} |
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|
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int |
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dev_flush() /* flush output */ |
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> |
extern int |
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> |
dev_flush(void) /* flush output */ |
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{ |
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qtUpdate(); |
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rayqleft = RAYQLEN; |
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< |
return(XPending(ourdisplay)); |
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> |
return(odev.inpready = XPending(ourdisplay)); |
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} |
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|
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static |
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xnewcolr(ndx, r, g, b) /* enter a color into hardware table */ |
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< |
int ndx; |
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< |
int r, g, b; |
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> |
static void |
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> |
xnewcolr( /* enter a color into hardware table */ |
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> |
int ndx, |
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> |
int r, |
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> |
int g, |
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> |
int b |
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> |
) |
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{ |
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XColor xcolor; |
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|
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|
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static int |
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< |
getpixels() /* get the color map */ |
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> |
getpixels(void) /* get the color map */ |
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{ |
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XColor thiscolor; |
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register int i, j; |
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return(ncolors = 0); |
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if (XAllocColorCells(ourdisplay,ourmap,0,NULL,0,pixval,ncolors)) |
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break; |
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< |
free((char *)pixval); |
| 417 |
> |
free((void *)pixval); |
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pixval = NULL; |
| 419 |
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} |
| 420 |
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if (pixval == NULL) { |
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} |
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|
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|
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< |
static |
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< |
freepixels() /* free our pixels */ |
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> |
static void |
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> |
freepixels(void) /* free our pixels */ |
| 448 |
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{ |
| 449 |
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if (ncolors == 0) |
| 450 |
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return; |
| 451 |
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XFreeColors(ourdisplay,ourmap,pixval,ncolors,0L); |
| 452 |
< |
free((char *)pixval); |
| 452 |
> |
free((void *)pixval); |
| 453 |
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pixval = NULL; |
| 454 |
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ncolors = 0; |
| 455 |
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if (ourmap != DefaultColormap(ourdisplay,ourscreen)) |
| 459 |
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|
| 460 |
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|
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static unsigned long |
| 462 |
< |
true_pixel(rgb) /* return true pixel value for color */ |
| 463 |
< |
register BYTE rgb[3]; |
| 462 |
> |
true_pixel( /* return true pixel value for color */ |
| 463 |
> |
register BYTE rgb[3] |
| 464 |
> |
) |
| 465 |
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{ |
| 466 |
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register unsigned long rval; |
| 467 |
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|
| 472 |
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} |
| 473 |
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|
| 474 |
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|
| 475 |
< |
static |
| 476 |
< |
getevent() /* get next event */ |
| 475 |
> |
static void |
| 476 |
> |
getevent(void) /* get next event */ |
| 477 |
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{ |
| 478 |
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XNextEvent(ourdisplay, levptr(XEvent)); |
| 479 |
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switch (levptr(XEvent)->type) { |
| 500 |
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getkey(levptr(XKeyPressedEvent)); |
| 501 |
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break; |
| 502 |
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case ButtonPress: |
| 503 |
< |
getmove(levptr(XButtonPressedEvent)); |
| 503 |
> |
if (FRAMESTATE(levptr(XButtonPressedEvent)->state)) |
| 504 |
> |
getframe(levptr(XButtonPressedEvent)); |
| 505 |
> |
else |
| 506 |
> |
getmove(levptr(XButtonPressedEvent)); |
| 507 |
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break; |
| 508 |
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} |
| 509 |
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} |
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|
| 511 |
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|
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< |
static |
| 513 |
< |
ilclip(dp, wp) /* clip world coordinates to device */ |
| 514 |
< |
int dp[2][2]; |
| 515 |
< |
FVECT wp[2]; |
| 512 |
> |
static int |
| 513 |
> |
ilclip( /* clip world coordinates to device */ |
| 514 |
> |
int dp[2][2], |
| 515 |
> |
FVECT wp[2] |
| 516 |
> |
) |
| 517 |
|
{ |
| 518 |
< |
static FVECT vmin = {0.,0.,0.}, vmax = {1.,1.,FHUGE}; |
| 519 |
< |
FVECT ip[2]; |
| 520 |
< |
/* not exactly right, but who cares? */ |
| 521 |
< |
viewloc(ip[0], &odev.v, wp[0]); |
| 522 |
< |
viewloc(ip[1], &odev.v, wp[1]); |
| 518 |
> |
static FVECT vmin = {0.,0.,0.}, vmax = {1.-FTINY,1.-FTINY,FHUGE}; |
| 519 |
> |
FVECT wpc[2], ip[2]; |
| 520 |
> |
double d, d0, d1; |
| 521 |
> |
/* check for points behind view */ |
| 522 |
> |
d = DOT(odev.v.vp, odev.v.vdir); |
| 523 |
> |
d0 = DOT(wp[0], odev.v.vdir) - d; |
| 524 |
> |
d1 = DOT(wp[1], odev.v.vdir) - d; |
| 525 |
> |
/* work on copy of world points */ |
| 526 |
> |
if (d0 <= d1) { |
| 527 |
> |
VCOPY(wpc[0], wp[0]); VCOPY(wpc[1], wp[1]); |
| 528 |
> |
} else { |
| 529 |
> |
d = d0; d0 = d1; d1 = d; |
| 530 |
> |
VCOPY(wpc[1], wp[0]); VCOPY(wpc[0], wp[1]); |
| 531 |
> |
} |
| 532 |
> |
if (d0 <= FTINY) { |
| 533 |
> |
if (d1 <= FTINY) return(0); |
| 534 |
> |
VSUB(wpc[0], wpc[0], wpc[1]); |
| 535 |
> |
d = .99*d1/(d1-d0); |
| 536 |
> |
VSUM(wpc[0], wpc[1], wpc[0], d); |
| 537 |
> |
} |
| 538 |
> |
/* get view coordinates and clip to window */ |
| 539 |
> |
viewloc(ip[0], &odev.v, wpc[0]); |
| 540 |
> |
viewloc(ip[1], &odev.v, wpc[1]); |
| 541 |
|
if (!clip(ip[0], ip[1], vmin, vmax)) |
| 542 |
|
return(0); |
| 543 |
|
dp[0][0] = ip[0][0]*odev.hres; |
| 548 |
|
} |
| 549 |
|
|
| 550 |
|
|
| 551 |
< |
static |
| 552 |
< |
draw3dline(wp) /* draw 3d line in world coordinates */ |
| 553 |
< |
FVECT wp[2]; |
| 551 |
> |
static void |
| 552 |
> |
draw3dline( /* draw 3d line in world coordinates */ |
| 553 |
> |
FVECT wp[2] |
| 554 |
> |
) |
| 555 |
|
{ |
| 556 |
|
int dp[2][2]; |
| 557 |
|
|
| 563 |
|
} |
| 564 |
|
|
| 565 |
|
|
| 566 |
< |
static |
| 567 |
< |
draw_grids() /* draw holodeck section grids */ |
| 566 |
> |
static void |
| 567 |
> |
draw_grids(void) /* draw holodeck section grids */ |
| 568 |
|
{ |
| 569 |
|
static BYTE gridrgb[3] = {0x0, 0xff, 0xff}; |
| 570 |
|
unsigned long pixel; |
| 571 |
|
|
| 480 |
– |
if (!mapped) |
| 481 |
– |
return; |
| 572 |
|
if (ncolors > 0) |
| 573 |
|
pixel = pixval[get_pixel(gridrgb, xnewcolr)]; |
| 574 |
|
else |
| 579 |
|
} |
| 580 |
|
|
| 581 |
|
|
| 582 |
< |
static |
| 583 |
< |
moveview(dx, dy, mov, orb) /* move our view */ |
| 584 |
< |
int dx, dy, mov, orb; |
| 582 |
> |
static int |
| 583 |
> |
moveview( /* move our view */ |
| 584 |
> |
int dx, |
| 585 |
> |
int dy, |
| 586 |
> |
int mov, |
| 587 |
> |
int orb |
| 588 |
> |
) |
| 589 |
|
{ |
| 590 |
|
VIEW nv; |
| 591 |
|
FVECT odir, v1; |
| 592 |
|
double d; |
| 593 |
|
register int li; |
| 594 |
|
/* start with old view */ |
| 595 |
< |
copystruct(&nv, &odev.v); |
| 595 |
> |
nv = odev.v; |
| 596 |
|
/* change view direction */ |
| 597 |
|
if (mov | orb) { |
| 598 |
|
if ((li = qtFindLeaf(dx, dy)) < 0) |
| 631 |
|
} |
| 632 |
|
|
| 633 |
|
|
| 634 |
< |
static |
| 635 |
< |
getmove(ebut) /* get view change */ |
| 636 |
< |
XButtonPressedEvent *ebut; |
| 634 |
> |
static void |
| 635 |
> |
getframe( /* get focus frame */ |
| 636 |
> |
XButtonPressedEvent *ebut |
| 637 |
> |
) |
| 638 |
|
{ |
| 639 |
+ |
int startx = ebut->x, starty = ebut->y; |
| 640 |
+ |
int endx, endy; |
| 641 |
+ |
|
| 642 |
+ |
XMaskEvent(ourdisplay, ButtonReleaseMask, levptr(XEvent)); |
| 643 |
+ |
endx = levptr(XButtonReleasedEvent)->x; |
| 644 |
+ |
endy = levptr(XButtonReleasedEvent)->y; |
| 645 |
+ |
if ((endx == startx) | (endy == starty)) { |
| 646 |
+ |
XBell(ourdisplay, 0); |
| 647 |
+ |
return; |
| 648 |
+ |
} |
| 649 |
+ |
if (endx < startx) {register int c = endx; endx = startx; startx = c;} |
| 650 |
+ |
if (endy < starty) {register int c = endy; endy = starty; starty = c;} |
| 651 |
+ |
sprintf(odev_args, "%.3f %.3f %.3f %.3f", |
| 652 |
+ |
(startx+.5)/odev.hres, 1.-(endy+.5)/odev.vres, |
| 653 |
+ |
(endx+.5)/odev.hres, 1.-(starty+.5)/odev.vres); |
| 654 |
+ |
inpresflags |= DFL(DC_FOCUS); |
| 655 |
+ |
} |
| 656 |
+ |
|
| 657 |
+ |
|
| 658 |
+ |
static void |
| 659 |
+ |
waitabit(void) /* pause a moment */ |
| 660 |
+ |
{ |
| 661 |
+ |
struct timespec ts; |
| 662 |
+ |
ts.tv_sec = 0; |
| 663 |
+ |
ts.tv_nsec = 100000000; |
| 664 |
+ |
nanosleep(&ts, NULL); |
| 665 |
+ |
} |
| 666 |
+ |
|
| 667 |
+ |
|
| 668 |
+ |
static void |
| 669 |
+ |
getmove( /* get view change */ |
| 670 |
+ |
XButtonPressedEvent *ebut |
| 671 |
+ |
) |
| 672 |
+ |
{ |
| 673 |
|
int movdir = MOVDIR(ebut->button); |
| 674 |
|
int movorb = MOVORB(ebut->state); |
| 675 |
|
int oldnodesiz = qtMinNodesiz; |
| 682 |
|
|
| 683 |
|
while (!XCheckMaskEvent(ourdisplay, |
| 684 |
|
ButtonReleaseMask, levptr(XEvent))) { |
| 685 |
< |
|
| 685 |
> |
waitabit(); |
| 686 |
|
if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw, |
| 687 |
|
&rootx, &rooty, &wx, &wy, &statemask)) |
| 688 |
|
break; /* on another screen */ |
| 707 |
|
} |
| 708 |
|
|
| 709 |
|
|
| 710 |
< |
static |
| 711 |
< |
getkey(ekey) /* get input key */ |
| 712 |
< |
register XKeyPressedEvent *ekey; |
| 710 |
> |
static void |
| 711 |
> |
getkey( /* get input key */ |
| 712 |
> |
register XKeyPressedEvent *ekey |
| 713 |
> |
) |
| 714 |
|
{ |
| 715 |
+ |
Window rootw, childw; |
| 716 |
+ |
int rootx, rooty, wx, wy; |
| 717 |
+ |
unsigned int statemask; |
| 718 |
|
int n; |
| 719 |
|
char buf[8]; |
| 720 |
|
|
| 731 |
|
case 'l': /* retrieve last view */ |
| 732 |
|
inpresflags |= DFL(DC_LASTVIEW); |
| 733 |
|
return; |
| 734 |
+ |
case 'f': /* frame view position */ |
| 735 |
+ |
if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw, |
| 736 |
+ |
&rootx, &rooty, &wx, &wy, &statemask)) |
| 737 |
+ |
return; /* on another screen */ |
| 738 |
+ |
sprintf(odev_args, "%.4f %.4f", (wx+.5)/odev.hres, |
| 739 |
+ |
1.-(wy+.5)/odev.vres); |
| 740 |
+ |
inpresflags |= DFL(DC_FOCUS); |
| 741 |
+ |
return; |
| 742 |
+ |
case 'F': /* unfocus */ |
| 743 |
+ |
odev_args[0] = '\0'; |
| 744 |
+ |
inpresflags |= DFL(DC_FOCUS); |
| 745 |
+ |
return; |
| 746 |
|
case 'p': /* pause computation */ |
| 747 |
|
inpresflags |= DFL(DC_PAUSE); |
| 748 |
|
return; |
| 789 |
|
} |
| 790 |
|
|
| 791 |
|
|
| 792 |
< |
static |
| 793 |
< |
fixwindow(eexp) /* repair damage to window */ |
| 794 |
< |
register XExposeEvent *eexp; |
| 792 |
> |
static void |
| 793 |
> |
fixwindow( /* repair damage to window */ |
| 794 |
> |
register XExposeEvent *eexp |
| 795 |
> |
) |
| 796 |
|
{ |
| 797 |
|
if (odev.hres == 0 || odev.vres == 0) { /* first exposure */ |
| 798 |
|
odev.hres = eexp->width; |
| 803 |
|
} |
| 804 |
|
|
| 805 |
|
|
| 806 |
< |
static |
| 807 |
< |
resizewindow(ersz) /* resize window */ |
| 808 |
< |
register XConfigureEvent *ersz; |
| 806 |
> |
static void |
| 807 |
> |
resizewindow( /* resize window */ |
| 808 |
> |
register XConfigureEvent *ersz |
| 809 |
> |
) |
| 810 |
|
{ |
| 811 |
|
if (ersz->width == odev.hres && ersz->height == odev.vres) |
| 812 |
|
return; |
