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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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#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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|
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#include "x11icon.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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|
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#ifndef RAYQLEN |
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#define RAYQLEN 50000 /* max. rays to queue before flush */ |
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#endif |
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|
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#ifndef FEQ |
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#define FEQ(a,b) ((a)-(b) <= FTINY && (a)-(b) >= -FTINY) |
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#endif |
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#define GAMMA 2.2 /* default gamma correction */ |
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|
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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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|
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TMstruct *tmGlobal; /* global tone-mapping structure */ |
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|
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char odev_args[64]; /* command arguments */ |
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|
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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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|
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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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|
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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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for (cp = tail; *cp && *cp != '.'; cp++) |
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; |
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if (cp-tail == 3 && !strncmp(tail, "x11", 3)) |
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return(TM_F_CAMERA); |
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return(TM_F_CAMERA|TM_F_NOSTDERR); |
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if (cp-tail == 4 && !strncmp(tail, "x11h", 4)) |
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return(TM_F_HUMAN); |
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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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char *gv; |
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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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RGBPRIMP dpri = stdprims; |
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int nplanes; |
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XSetWindowAttributes ourwinattr; |
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XWMHints ourxwmhints; |
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ourwhite = WhitePixel(ourdisplay,ourscreen); |
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} |
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/* set gamma and tone mapping */ |
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if ((gv = XGetDefault(ourdisplay, "radiance", "gamma")) != NULL |
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|| (gv = getenv("DISPLAY_GAMMA")) != NULL) |
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gamval = atof(gv); |
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if (tmInit(mytmflags(), stdprims, gamval) == NULL) |
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if ((ev = XGetDefault(ourdisplay, "radiance", "gamma")) != NULL |
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|| (ev = getenv("DISPLAY_GAMMA")) != NULL) |
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gamval = atof(ev); |
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if ((ev = getenv("DISPLAY_PRIMARIES")) != NULL && |
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sscanf(ev, "%f %f %f %f %f %f %f %f", |
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&myprims[RED][CIEX],&myprims[RED][CIEY], |
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&myprims[GRN][CIEX],&myprims[GRN][CIEY], |
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&myprims[BLU][CIEX],&myprims[BLU][CIEY], |
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&myprims[WHT][CIEX],&myprims[WHT][CIEY]) >= 6) |
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dpri = myprims; |
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tmGlobal = tmInit(mytmflags(), dpri, gamval); |
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if (tmGlobal == NULL) |
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error(SYSTEM, "not enough memory in dev_open"); |
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/* open window */ |
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ourwinattr.background_pixel = ourblack; |
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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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dev_input(); /* sets size and view angles */ |
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/* allocate our leaf pile */ |
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if (!qtAllocLeaves(DisplayWidth(ourdisplay,ourscreen) * |
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DisplayHeight(ourdisplay,ourscreen) / |
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(qtMinNodesiz*qtMinNodesiz))) |
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DisplayHeight(ourdisplay,ourscreen) * 3 / |
213 |
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(qtMinNodesiz*qtMinNodesiz*2))) |
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error(SYSTEM, "insufficient memory for leaf storage"); |
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odev.name = id; |
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odev.ifd = ConnectionNumber(ourdisplay); |
217 |
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} |
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|
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|
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dev_close() /* close our display */ |
220 |
> |
extern void |
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> |
dev_close(void) /* close our display */ |
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{ |
223 |
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freepixels(); |
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XFreeGC(ourdisplay, ourgc); |
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XCloseDisplay(ourdisplay); |
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ourdisplay = NULL; |
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qtFreeLeaves(); |
231 |
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tmDone(NULL); |
231 |
> |
tmDone(tmGlobal); |
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odev.v.type = 0; |
233 |
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odev.hres = odev.vres = 0; |
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odev.ifd = -1; |
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} |
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|
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|
238 |
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int |
239 |
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dev_view(nv) /* assign new driver view */ |
200 |
< |
VIEW *nv; |
238 |
> |
extern void |
239 |
> |
dev_clear(void) /* clear our quadtree */ |
240 |
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{ |
241 |
+ |
qtCompost(100); |
242 |
+ |
if (ncolors > 0) |
243 |
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new_ctab(ncolors); |
244 |
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rayqleft = 0; /* hold off update */ |
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} |
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|
247 |
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|
248 |
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extern int |
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dev_view( /* assign new driver view */ |
250 |
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VIEW *nv |
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) |
252 |
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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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error(COMMAND, "illegal view type/angle"); |
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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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|
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int |
297 |
< |
dev_input() /* get X11 input */ |
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> |
extern void |
297 |
> |
dev_section( /* add octree for geometry rendering */ |
298 |
> |
char *ofn |
299 |
> |
) |
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{ |
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/* unimplemented */ |
302 |
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} |
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|
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|
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extern void |
306 |
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dev_auxcom( /* process an auxiliary command */ |
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char *cmd, |
308 |
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char *args |
309 |
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) |
310 |
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{ |
311 |
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sprintf(errmsg, "%s: unknown command", cmd); |
312 |
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error(COMMAND, errmsg); |
313 |
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} |
314 |
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|
315 |
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|
316 |
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extern VIEW * |
317 |
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dev_auxview( /* return nth auxiliary view */ |
318 |
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int n, |
319 |
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int hvres[2] |
320 |
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) |
321 |
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{ |
322 |
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if (n) |
323 |
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return(NULL); |
324 |
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hvres[0] = odev.hres; hvres[1] = odev.vres; |
325 |
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return(&odev.v); |
326 |
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} |
327 |
+ |
|
328 |
+ |
|
329 |
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extern int |
330 |
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dev_input(void) /* get X11 input */ |
331 |
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{ |
332 |
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inpresflags = 0; |
333 |
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|
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do |
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getevent(); |
336 |
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|
337 |
< |
while (XQLength(ourdisplay) > 0); |
337 |
> |
while (XPending(ourdisplay) > 0); |
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|
339 |
+ |
odev.inpready = 0; |
340 |
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|
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return(inpresflags); |
342 |
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} |
343 |
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|
344 |
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|
345 |
< |
dev_paintr(rgb, xmin, ymin, xmax, ymax) /* fill a rectangle */ |
346 |
< |
BYTE rgb[3]; |
347 |
< |
int xmin, ymin, xmax, ymax; |
345 |
> |
extern void |
346 |
> |
dev_paintr( /* fill a rectangle */ |
347 |
> |
BYTE rgb[3], |
348 |
> |
int xmin, |
349 |
> |
int ymin, |
350 |
> |
int xmax, |
351 |
> |
int ymax |
352 |
> |
) |
353 |
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{ |
354 |
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unsigned long pixel; |
355 |
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|
365 |
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} |
366 |
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|
367 |
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|
368 |
< |
int |
369 |
< |
dev_flush() /* flush output */ |
368 |
> |
extern int |
369 |
> |
dev_flush(void) /* flush output */ |
370 |
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{ |
371 |
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qtUpdate(); |
372 |
< |
return(XPending(ourdisplay)); |
372 |
> |
rayqleft = RAYQLEN; |
373 |
> |
return(odev.inpready = XPending(ourdisplay)); |
374 |
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} |
375 |
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|
376 |
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|
377 |
< |
static |
378 |
< |
xnewcolr(ndx, r, g, b) /* enter a color into hardware table */ |
379 |
< |
int ndx; |
380 |
< |
int r, g, b; |
377 |
> |
static void |
378 |
> |
xnewcolr( /* enter a color into hardware table */ |
379 |
> |
int ndx, |
380 |
> |
int r, |
381 |
> |
int g, |
382 |
> |
int b |
383 |
> |
) |
384 |
|
{ |
385 |
|
XColor xcolor; |
386 |
|
|
395 |
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|
396 |
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|
397 |
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static int |
398 |
< |
getpixels() /* get the color map */ |
398 |
> |
getpixels(void) /* get the color map */ |
399 |
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{ |
400 |
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XColor thiscolor; |
401 |
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register int i, j; |
417 |
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return(ncolors = 0); |
418 |
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if (XAllocColorCells(ourdisplay,ourmap,0,NULL,0,pixval,ncolors)) |
419 |
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break; |
420 |
< |
free((char *)pixval); |
420 |
> |
free((void *)pixval); |
421 |
|
pixval = NULL; |
422 |
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} |
423 |
|
if (pixval == NULL) { |
446 |
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} |
447 |
|
|
448 |
|
|
449 |
< |
static |
450 |
< |
freepixels() /* free our pixels */ |
449 |
> |
static void |
450 |
> |
freepixels(void) /* free our pixels */ |
451 |
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{ |
452 |
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if (ncolors == 0) |
453 |
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return; |
454 |
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XFreeColors(ourdisplay,ourmap,pixval,ncolors,0L); |
455 |
< |
free((char *)pixval); |
455 |
> |
free((void *)pixval); |
456 |
|
pixval = NULL; |
457 |
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ncolors = 0; |
458 |
|
if (ourmap != DefaultColormap(ourdisplay,ourscreen)) |
462 |
|
|
463 |
|
|
464 |
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static unsigned long |
465 |
< |
true_pixel(rgb) /* return true pixel value for color */ |
466 |
< |
register BYTE rgb[3]; |
465 |
> |
true_pixel( /* return true pixel value for color */ |
466 |
> |
register BYTE rgb[3] |
467 |
> |
) |
468 |
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{ |
469 |
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register unsigned long rval; |
470 |
|
|
475 |
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} |
476 |
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|
477 |
|
|
478 |
< |
static |
479 |
< |
getevent() /* get next event */ |
478 |
> |
static void |
479 |
> |
getevent(void) /* get next event */ |
480 |
|
{ |
481 |
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XNextEvent(ourdisplay, levptr(XEvent)); |
482 |
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switch (levptr(XEvent)->type) { |
503 |
|
getkey(levptr(XKeyPressedEvent)); |
504 |
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break; |
505 |
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case ButtonPress: |
506 |
< |
getmove(levptr(XButtonPressedEvent)); |
506 |
> |
if (FRAMESTATE(levptr(XButtonPressedEvent)->state)) |
507 |
> |
getframe(levptr(XButtonPressedEvent)); |
508 |
> |
else |
509 |
> |
getmove(levptr(XButtonPressedEvent)); |
510 |
|
break; |
511 |
|
} |
512 |
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} |
513 |
|
|
514 |
|
|
515 |
< |
static |
516 |
< |
ilclip(dp, wp) /* clip world coordinates to device */ |
517 |
< |
int dp[2][2]; |
518 |
< |
FVECT wp[2]; |
515 |
> |
static int |
516 |
> |
ilclip( /* clip world coordinates to device */ |
517 |
> |
int dp[2][2], |
518 |
> |
FVECT wp[2] |
519 |
> |
) |
520 |
|
{ |
521 |
< |
static FVECT vmin = {0.,0.,0.}, vmax = {1.,1.,FHUGE}; |
522 |
< |
FVECT ip[2]; |
523 |
< |
/* not exactly right, but who cares? */ |
524 |
< |
viewloc(ip[0], &odev.v, wp[0]); |
525 |
< |
viewloc(ip[1], &odev.v, wp[1]); |
521 |
> |
static FVECT vmin = {0.,0.,0.}, vmax = {1.-FTINY,1.-FTINY,FHUGE}; |
522 |
> |
FVECT wpc[2], ip[2]; |
523 |
> |
double d, d0, d1; |
524 |
> |
/* check for points behind view */ |
525 |
> |
d = DOT(odev.v.vp, odev.v.vdir); |
526 |
> |
d0 = DOT(wp[0], odev.v.vdir) - d; |
527 |
> |
d1 = DOT(wp[1], odev.v.vdir) - d; |
528 |
> |
/* work on copy of world points */ |
529 |
> |
if (d0 <= d1) { |
530 |
> |
VCOPY(wpc[0], wp[0]); VCOPY(wpc[1], wp[1]); |
531 |
> |
} else { |
532 |
> |
d = d0; d0 = d1; d1 = d; |
533 |
> |
VCOPY(wpc[1], wp[0]); VCOPY(wpc[0], wp[1]); |
534 |
> |
} |
535 |
> |
if (d0 <= FTINY) { |
536 |
> |
if (d1 <= FTINY) return(0); |
537 |
> |
VSUB(wpc[0], wpc[0], wpc[1]); |
538 |
> |
d = .99*d1/(d1-d0); |
539 |
> |
VSUM(wpc[0], wpc[1], wpc[0], d); |
540 |
> |
} |
541 |
> |
/* get view coordinates and clip to window */ |
542 |
> |
viewloc(ip[0], &odev.v, wpc[0]); |
543 |
> |
viewloc(ip[1], &odev.v, wpc[1]); |
544 |
|
if (!clip(ip[0], ip[1], vmin, vmax)) |
545 |
|
return(0); |
546 |
|
dp[0][0] = ip[0][0]*odev.hres; |
551 |
|
} |
552 |
|
|
553 |
|
|
554 |
< |
static |
555 |
< |
draw3dline(wp) /* draw 3d line in world coordinates */ |
556 |
< |
FVECT wp[2]; |
554 |
> |
static void |
555 |
> |
draw3dline( /* draw 3d line in world coordinates */ |
556 |
> |
FVECT wp[2] |
557 |
> |
) |
558 |
|
{ |
559 |
|
int dp[2][2]; |
560 |
|
|
566 |
|
} |
567 |
|
|
568 |
|
|
569 |
< |
static |
570 |
< |
draw_grids() /* draw holodeck section grids */ |
569 |
> |
static void |
570 |
> |
draw_grids(void) /* draw holodeck section grids */ |
571 |
|
{ |
572 |
|
static BYTE gridrgb[3] = {0x0, 0xff, 0xff}; |
573 |
|
unsigned long pixel; |
574 |
|
|
456 |
– |
if (!mapped || odev.v.type != VT_PER) |
457 |
– |
return; |
575 |
|
if (ncolors > 0) |
576 |
|
pixel = pixval[get_pixel(gridrgb, xnewcolr)]; |
577 |
|
else |
582 |
|
} |
583 |
|
|
584 |
|
|
585 |
< |
static |
586 |
< |
moveview(dx, dy, mov, orb) /* move our view */ |
587 |
< |
int dx, dy, mov, orb; |
585 |
> |
static int |
586 |
> |
moveview( /* move our view */ |
587 |
> |
int dx, |
588 |
> |
int dy, |
589 |
> |
int mov, |
590 |
> |
int orb |
591 |
> |
) |
592 |
|
{ |
593 |
|
VIEW nv; |
594 |
|
FVECT odir, v1; |
595 |
|
double d; |
596 |
|
register int li; |
597 |
|
/* start with old view */ |
598 |
< |
copystruct(&nv, &odev.v); |
598 |
> |
nv = odev.v; |
599 |
|
/* change view direction */ |
600 |
|
if (mov | orb) { |
601 |
|
if ((li = qtFindLeaf(dx, dy)) < 0) |
634 |
|
} |
635 |
|
|
636 |
|
|
637 |
< |
static |
638 |
< |
getmove(ebut) /* get view change */ |
639 |
< |
XButtonPressedEvent *ebut; |
637 |
> |
static void |
638 |
> |
getframe( /* get focus frame */ |
639 |
> |
XButtonPressedEvent *ebut |
640 |
> |
) |
641 |
|
{ |
642 |
+ |
int startx = ebut->x, starty = ebut->y; |
643 |
+ |
int endx, endy, midx, midy; |
644 |
+ |
FVECT v1; |
645 |
+ |
int li; |
646 |
+ |
/* get mouse drag */ |
647 |
+ |
XMaskEvent(ourdisplay, ButtonReleaseMask, levptr(XEvent)); |
648 |
+ |
endx = levptr(XButtonReleasedEvent)->x; |
649 |
+ |
endy = levptr(XButtonReleasedEvent)->y; |
650 |
+ |
midx = (startx + endx) >> 1; |
651 |
+ |
midy = (starty + endy) >> 1; |
652 |
+ |
/* set focus distance */ |
653 |
+ |
if ((li = qtFindLeaf(midx, midy)) < 0) |
654 |
+ |
return(0); /* not on window */ |
655 |
+ |
VCOPY(v1, qtL.wp[li]); |
656 |
+ |
odev.v.vdist = sqrt(dist2(odev.v.vp, v1)); |
657 |
+ |
/* set frame for rendering */ |
658 |
+ |
if ((endx == startx) | (endy == starty)) |
659 |
+ |
return; |
660 |
+ |
if (endx < startx) {register int c = endx; endx = startx; startx = c;} |
661 |
+ |
if (endy < starty) {register int c = endy; endy = starty; starty = c;} |
662 |
+ |
sprintf(odev_args, "%.3f %.3f %.3f %.3f", |
663 |
+ |
(startx+.5)/odev.hres, 1.-(endy+.5)/odev.vres, |
664 |
+ |
(endx+.5)/odev.hres, 1.-(starty+.5)/odev.vres); |
665 |
+ |
inpresflags |= DFL(DC_FOCUS); |
666 |
+ |
} |
667 |
+ |
|
668 |
+ |
|
669 |
+ |
static void |
670 |
+ |
waitabit(void) /* pause a moment */ |
671 |
+ |
{ |
672 |
+ |
struct timespec ts; |
673 |
+ |
ts.tv_sec = 0; |
674 |
+ |
ts.tv_nsec = 100000000; |
675 |
+ |
nanosleep(&ts, NULL); |
676 |
+ |
} |
677 |
+ |
|
678 |
+ |
|
679 |
+ |
static void |
680 |
+ |
getmove( /* get view change */ |
681 |
+ |
XButtonPressedEvent *ebut |
682 |
+ |
) |
683 |
+ |
{ |
684 |
|
int movdir = MOVDIR(ebut->button); |
685 |
|
int movorb = MOVORB(ebut->state); |
686 |
|
int oldnodesiz = qtMinNodesiz; |
693 |
|
|
694 |
|
while (!XCheckMaskEvent(ourdisplay, |
695 |
|
ButtonReleaseMask, levptr(XEvent))) { |
696 |
< |
|
696 |
> |
waitabit(); |
697 |
|
if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw, |
698 |
|
&rootx, &rooty, &wx, &wy, &statemask)) |
699 |
|
break; /* on another screen */ |
718 |
|
} |
719 |
|
|
720 |
|
|
721 |
< |
static |
722 |
< |
getkey(ekey) /* get input key */ |
723 |
< |
register XKeyPressedEvent *ekey; |
721 |
> |
static void |
722 |
> |
getkey( /* get input key */ |
723 |
> |
register XKeyPressedEvent *ekey |
724 |
> |
) |
725 |
|
{ |
726 |
+ |
Window rootw, childw; |
727 |
+ |
int rootx, rooty, wx, wy; |
728 |
+ |
unsigned int statemask; |
729 |
|
int n; |
730 |
|
char buf[8]; |
731 |
|
|
742 |
|
case 'l': /* retrieve last view */ |
743 |
|
inpresflags |= DFL(DC_LASTVIEW); |
744 |
|
return; |
745 |
+ |
case 'f': /* frame view position */ |
746 |
+ |
if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw, |
747 |
+ |
&rootx, &rooty, &wx, &wy, &statemask)) |
748 |
+ |
return; /* on another screen */ |
749 |
+ |
sprintf(odev_args, "%.4f %.4f", (wx+.5)/odev.hres, |
750 |
+ |
1.-(wy+.5)/odev.vres); |
751 |
+ |
inpresflags |= DFL(DC_FOCUS); |
752 |
+ |
return; |
753 |
+ |
case 'F': /* unfocus */ |
754 |
+ |
odev_args[0] = '\0'; |
755 |
+ |
inpresflags |= DFL(DC_FOCUS); |
756 |
+ |
return; |
757 |
|
case 'p': /* pause computation */ |
758 |
|
inpresflags |= DFL(DC_PAUSE); |
759 |
|
return; |
779 |
|
if (ncolors > 0) |
780 |
|
new_ctab(ncolors); |
781 |
|
inpresflags |= DFL(DC_REDRAW); /* resend values from server */ |
782 |
+ |
rayqleft = 0; /* hold off update */ |
783 |
|
return; |
784 |
|
case 'K': /* kill rtrace process(es) */ |
785 |
|
inpresflags |= DFL(DC_KILL); |
800 |
|
} |
801 |
|
|
802 |
|
|
803 |
< |
static |
804 |
< |
fixwindow(eexp) /* repair damage to window */ |
805 |
< |
register XExposeEvent *eexp; |
803 |
> |
static void |
804 |
> |
fixwindow( /* repair damage to window */ |
805 |
> |
register XExposeEvent *eexp |
806 |
> |
) |
807 |
|
{ |
808 |
|
if (odev.hres == 0 || odev.vres == 0) { /* first exposure */ |
809 |
|
odev.hres = eexp->width; |
814 |
|
} |
815 |
|
|
816 |
|
|
817 |
< |
static |
818 |
< |
resizewindow(ersz) /* resize window */ |
819 |
< |
register XConfigureEvent *ersz; |
817 |
> |
static void |
818 |
> |
resizewindow( /* resize window */ |
819 |
> |
register XConfigureEvent *ersz |
820 |
> |
) |
821 |
|
{ |
822 |
|
if (ersz->width == odev.hres && ersz->height == odev.vres) |
823 |
|
return; |