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gregl |
3.1 |
/* 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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#endif
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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 <X11/Xlib.h>
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#include <X11/cursorfont.h>
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#include <X11/Xutil.h>
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#include "x11icon.h"
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| 21 |
gregl |
3.2 |
#define CTRL(c) ((c)-'@')
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gregl |
3.1 |
#define GAMMA 2.2 /* default gamma correction */
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gregl |
3.2 |
#define MOVPCT 10 /* percent distance to move */
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#define MOVDIR(b) ((b)==Button1 ? 1 : (b)==Button2 ? 0 : -1)
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gregl |
3.1 |
#define MINWIDTH 480 /* minimum graphics window width */
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#define MINHEIGHT 400 /* minimum graphics window height */
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#define VIEWDIST 356 /* assumed viewing distance (mm) */
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#define BORWIDTH 5 /* border width */
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#define ourscreen DefaultScreen(ourdisplay)
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#define ourroot RootWindow(ourdisplay,ourscreen)
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#define ourmask (StructureNotifyMask|ExposureMask|KeyPressMask|\
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gregl |
3.2 |
ButtonPressMask|ButtonReleaseMask)
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gregl |
3.1 |
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#define levptr(etype) ((etype *)¤tevent)
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struct driver odev; /* global device driver structure */
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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 mapped = 0; /* window is mapped? */
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static unsigned long *pixval = NULL; /* allocated pixels */
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static unsigned long ourblack=0, ourwhite=1;
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static Display *ourdisplay = NULL; /* our display */
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static XVisualInfo ourvinfo; /* our visual information */
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static Window gwind = 0; /* our graphics window */
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static GC ourgc = 0; /* our graphics context for drawing */
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static Colormap ourmap = 0; /* our color map */
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static double pwidth, pheight; /* pixel dimensions (mm) */
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static int inpresflags; /* input result flags */
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gregl |
3.2 |
static int headlocked = 0; /* lock vertical motion */
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gregl |
3.1 |
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static int getpixels(), xnewcolr(), freepixels(), resizewindow(),
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gregl |
3.2 |
getevent(), getkey(), moveview(), getmove(), fixwindow();
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gregl |
3.1 |
static unsigned long true_pixel();
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static int
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mytmflags() /* 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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/* find basic name */
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for (cp = tail = progname; *cp; cp++)
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if (*cp == '/')
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tail = cp+1;
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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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if (cp-tail == 4 && !strncmp(tail, "x11h", 4))
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return(TM_F_HUMAN);
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error(USER, "illegal driver name");
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}
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dev_open(id) /* initialize X11 driver */
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char *id;
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{
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extern char *getenv();
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char *gv;
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double gamval = GAMMA;
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int nplanes;
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XSetWindowAttributes ourwinattr;
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XWMHints ourxwmhints;
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XSizeHints oursizhints;
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gregl |
3.2 |
/* set quadtree globals */
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qtDepthEps = 0.02;
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gregl |
3.4 |
qtMinNodesiz = 2;
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gregl |
3.1 |
/* open display server */
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ourdisplay = XOpenDisplay(NULL);
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if (ourdisplay == NULL)
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error(USER, "cannot open X-windows; DISPLAY variable set?\n");
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/* find a usable visual */
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nplanes = DisplayPlanes(ourdisplay, ourscreen);
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if (XMatchVisualInfo(ourdisplay,ourscreen,
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nplanes>12?nplanes:24,TrueColor,&ourvinfo) ||
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XMatchVisualInfo(ourdisplay,ourscreen,
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nplanes>12?nplanes:24,DirectColor,&ourvinfo)) {
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ourblack = 0;
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ourwhite = ourvinfo.red_mask |
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ourvinfo.green_mask |
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ourvinfo.blue_mask ;
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} else {
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if (nplanes < 4)
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error(INTERNAL, "not enough colors\n");
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if (!XMatchVisualInfo(ourdisplay,ourscreen,
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nplanes,PseudoColor,&ourvinfo) &&
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!XMatchVisualInfo(ourdisplay,ourscreen,
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nplanes,GrayScale,&ourvinfo))
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error(INTERNAL, "unsupported visual type\n");
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ourblack = BlackPixel(ourdisplay,ourscreen);
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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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error(SYSTEM, "not enough memory in dev_open");
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| 135 |
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/* open window */
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ourwinattr.background_pixel = ourblack;
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ourwinattr.border_pixel = ourblack;
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ourwinattr.event_mask = ourmask;
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/* this is stupid */
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ourwinattr.colormap = XCreateColormap(ourdisplay, ourroot,
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ourvinfo.visual, AllocNone);
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gwind = XCreateWindow(ourdisplay, ourroot, 0, 0,
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DisplayWidth(ourdisplay,ourscreen)-2*BORWIDTH,
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DisplayHeight(ourdisplay,ourscreen)-2*BORWIDTH,
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BORWIDTH, ourvinfo.depth, InputOutput, ourvinfo.visual,
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CWBackPixel|CWBorderPixel|CWColormap|CWEventMask, &ourwinattr);
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if (gwind == 0)
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error(SYSTEM, "cannot create window\n");
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XStoreName(ourdisplay, gwind, id);
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/* get graphics context */
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ourgc = XCreateGC(ourdisplay, gwind, 0, NULL);
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/* set window manager hints */
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ourxwmhints.flags = InputHint|IconPixmapHint;
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ourxwmhints.input = True;
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ourxwmhints.icon_pixmap = XCreateBitmapFromData(ourdisplay,
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gwind, x11icon_bits, x11icon_width, x11icon_height);
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XSetWMHints(ourdisplay, gwind, &ourxwmhints);
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oursizhints.min_width = MINWIDTH;
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oursizhints.min_height = MINHEIGHT;
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oursizhints.flags = PMinSize;
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XSetNormalHints(ourdisplay, gwind, &oursizhints);
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/* map the window and get its size */
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XMapWindow(ourdisplay, gwind);
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dev_input();
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gregl |
3.2 |
/* 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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error(SYSTEM, "insufficient memory for leaf storage");
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gregl |
3.1 |
/* figure out sensible view */
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pwidth = (double)DisplayWidthMM(ourdisplay, ourscreen) /
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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.name = id;
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| 178 |
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odev.v.type = VT_PER;
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| 179 |
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odev.v.horiz = 2.*180./PI * atan(0.5/VIEWDIST*pwidth*odev.hres);
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| 180 |
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odev.v.vert = 2.*180./PI * atan(0.5/VIEWDIST*pheight*odev.vres);
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| 181 |
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odev.ifd = ConnectionNumber(ourdisplay);
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| 182 |
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}
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| 183 |
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| 184 |
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| 185 |
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dev_close() /* close our display */
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{
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| 187 |
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freepixels();
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| 188 |
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XFreeGC(ourdisplay, ourgc);
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| 189 |
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XDestroyWindow(ourdisplay, gwind);
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| 190 |
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gwind = 0;
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| 191 |
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ourgc = 0;
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| 192 |
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XCloseDisplay(ourdisplay);
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| 193 |
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ourdisplay = NULL;
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| 194 |
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qtFreeLeaves();
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| 195 |
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tmDone(NULL);
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| 196 |
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odev.v.type = 0;
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| 197 |
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odev.hres = odev.vres = 0;
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| 198 |
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odev.ifd = -1;
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| 199 |
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}
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| 200 |
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| 201 |
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| 202 |
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dev_view(nv) /* assign new driver view */
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VIEW *nv;
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{
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if (nv != &odev.v)
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| 206 |
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copystruct(&odev.v, nv);
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qtReplant();
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| 208 |
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}
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| 209 |
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| 210 |
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| 211 |
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int
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dev_input() /* get X11 input */
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| 213 |
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{
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| 214 |
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inpresflags = 0;
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do
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| 216 |
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getevent();
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| 217 |
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| 218 |
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while (XQLength(ourdisplay) > 0);
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| 219 |
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| 220 |
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return(inpresflags);
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| 221 |
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}
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| 222 |
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| 223 |
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| 224 |
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dev_paintr(rgb, xmin, ymin, xmax, ymax) /* fill a rectangle */
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| 225 |
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BYTE rgb[3];
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| 226 |
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int xmin, ymin, xmax, ymax;
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| 227 |
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{
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| 228 |
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unsigned long pixel;
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| 229 |
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| 230 |
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if (!mapped)
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| 231 |
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return;
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| 232 |
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if (ncolors > 0)
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| 233 |
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pixel = pixval[get_pixel(rgb, xnewcolr)];
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| 234 |
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else
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| 235 |
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pixel = true_pixel(rgb);
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| 236 |
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XSetForeground(ourdisplay, ourgc, pixel);
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| 237 |
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XFillRectangle(ourdisplay, gwind,
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| 238 |
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ourgc, xmin, odev.vres-ymax, xmax-xmin, ymax-ymin);
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| 239 |
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}
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| 240 |
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| 241 |
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| 242 |
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int
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| 243 |
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dev_flush() /* flush output */
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| 244 |
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{
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| 245 |
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qtUpdate();
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| 246 |
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return(XPending(ourdisplay));
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| 247 |
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}
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| 248 |
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| 249 |
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| 250 |
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static
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| 251 |
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xnewcolr(ndx, r, g, b) /* enter a color into hardware table */
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| 252 |
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int ndx;
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| 253 |
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int r, g, b;
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| 254 |
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{
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| 255 |
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XColor xcolor;
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| 256 |
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| 257 |
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xcolor.pixel = pixval[ndx];
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| 258 |
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xcolor.red = r << 8;
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| 259 |
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xcolor.green = g << 8;
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| 260 |
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xcolor.blue = b << 8;
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| 261 |
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xcolor.flags = DoRed|DoGreen|DoBlue;
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| 262 |
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| 263 |
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XStoreColor(ourdisplay, ourmap, &xcolor);
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| 264 |
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}
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| 265 |
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| 266 |
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| 267 |
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static int
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| 268 |
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getpixels() /* get the color map */
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| 269 |
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{
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| 270 |
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XColor thiscolor;
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| 271 |
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register int i, j;
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| 272 |
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| 273 |
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if (ncolors > 0)
|
| 274 |
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return(ncolors);
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| 275 |
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if (ourvinfo.visual == DefaultVisual(ourdisplay,ourscreen)) {
|
| 276 |
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ourmap = DefaultColormap(ourdisplay,ourscreen);
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| 277 |
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goto loop;
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| 278 |
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}
|
| 279 |
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newmap:
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| 280 |
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ourmap = XCreateColormap(ourdisplay,gwind,ourvinfo.visual,AllocNone);
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| 281 |
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loop:
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| 282 |
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for (ncolors = ourvinfo.colormap_size;
|
| 283 |
|
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ncolors > ourvinfo.colormap_size/3;
|
| 284 |
|
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ncolors = ncolors*.937) {
|
| 285 |
|
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pixval = (unsigned long *)malloc(ncolors*sizeof(unsigned long));
|
| 286 |
|
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if (pixval == NULL)
|
| 287 |
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return(ncolors = 0);
|
| 288 |
|
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if (XAllocColorCells(ourdisplay,ourmap,0,NULL,0,pixval,ncolors))
|
| 289 |
|
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break;
|
| 290 |
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free((char *)pixval);
|
| 291 |
|
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pixval = NULL;
|
| 292 |
|
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}
|
| 293 |
|
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if (pixval == NULL) {
|
| 294 |
|
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if (ourmap == DefaultColormap(ourdisplay,ourscreen))
|
| 295 |
|
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goto newmap; /* try it with our map */
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| 296 |
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else
|
| 297 |
|
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return(ncolors = 0); /* failed */
|
| 298 |
|
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}
|
| 299 |
|
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if (ourmap != DefaultColormap(ourdisplay,ourscreen))
|
| 300 |
|
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for (i = 0; i < ncolors; i++) { /* reset black and white */
|
| 301 |
|
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if (pixval[i] != ourblack && pixval[i] != ourwhite)
|
| 302 |
|
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continue;
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| 303 |
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thiscolor.pixel = pixval[i];
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| 304 |
|
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thiscolor.flags = DoRed|DoGreen|DoBlue;
|
| 305 |
|
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XQueryColor(ourdisplay,
|
| 306 |
|
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DefaultColormap(ourdisplay,ourscreen),
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| 307 |
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&thiscolor);
|
| 308 |
|
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XStoreColor(ourdisplay, ourmap, &thiscolor);
|
| 309 |
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for (j = i; j+1 < ncolors; j++)
|
| 310 |
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pixval[j] = pixval[j+1];
|
| 311 |
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ncolors--;
|
| 312 |
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i--;
|
| 313 |
|
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}
|
| 314 |
|
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XSetWindowColormap(ourdisplay, gwind, ourmap);
|
| 315 |
|
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return(ncolors);
|
| 316 |
|
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}
|
| 317 |
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|
| 318 |
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|
| 319 |
|
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static
|
| 320 |
|
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freepixels() /* free our pixels */
|
| 321 |
|
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{
|
| 322 |
|
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if (ncolors == 0)
|
| 323 |
|
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return;
|
| 324 |
|
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XFreeColors(ourdisplay,ourmap,pixval,ncolors,0L);
|
| 325 |
|
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free((char *)pixval);
|
| 326 |
|
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pixval = NULL;
|
| 327 |
|
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ncolors = 0;
|
| 328 |
|
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if (ourmap != DefaultColormap(ourdisplay,ourscreen))
|
| 329 |
|
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XFreeColormap(ourdisplay, ourmap);
|
| 330 |
|
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ourmap = 0;
|
| 331 |
|
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}
|
| 332 |
|
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|
| 333 |
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|
| 334 |
|
|
static unsigned long
|
| 335 |
|
|
true_pixel(rgb) /* return true pixel value for color */
|
| 336 |
|
|
register BYTE rgb[3];
|
| 337 |
|
|
{
|
| 338 |
|
|
register unsigned long rval;
|
| 339 |
|
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|
| 340 |
|
|
rval = ourvinfo.red_mask*rgb[RED]/255 & ourvinfo.red_mask;
|
| 341 |
|
|
rval |= ourvinfo.green_mask*rgb[GRN]/255 & ourvinfo.green_mask;
|
| 342 |
|
|
rval |= ourvinfo.blue_mask*rgb[BLU]/255 & ourvinfo.blue_mask;
|
| 343 |
|
|
return(rval);
|
| 344 |
|
|
}
|
| 345 |
|
|
|
| 346 |
|
|
|
| 347 |
|
|
static
|
| 348 |
|
|
getevent() /* get next event */
|
| 349 |
|
|
{
|
| 350 |
|
|
XNextEvent(ourdisplay, levptr(XEvent));
|
| 351 |
|
|
switch (levptr(XEvent)->type) {
|
| 352 |
|
|
case ConfigureNotify:
|
| 353 |
|
|
resizewindow(levptr(XConfigureEvent));
|
| 354 |
|
|
break;
|
| 355 |
|
|
case UnmapNotify:
|
| 356 |
|
|
mapped = 0;
|
| 357 |
|
|
freepixels();
|
| 358 |
|
|
break;
|
| 359 |
|
|
case MapNotify:
|
| 360 |
|
|
if (ourvinfo.class == PseudoColor ||
|
| 361 |
|
|
ourvinfo.class == GrayScale) {
|
| 362 |
|
|
if (getpixels() == 0)
|
| 363 |
|
|
error(SYSTEM, "cannot allocate colors\n");
|
| 364 |
|
|
new_ctab(ncolors);
|
| 365 |
|
|
}
|
| 366 |
|
|
mapped = 1;
|
| 367 |
|
|
break;
|
| 368 |
|
|
case Expose:
|
| 369 |
|
|
fixwindow(levptr(XExposeEvent));
|
| 370 |
|
|
break;
|
| 371 |
|
|
case KeyPress:
|
| 372 |
|
|
getkey(levptr(XKeyPressedEvent));
|
| 373 |
|
|
break;
|
| 374 |
|
|
case ButtonPress:
|
| 375 |
gregl |
3.2 |
getmove(levptr(XButtonPressedEvent));
|
| 376 |
gregl |
3.1 |
break;
|
| 377 |
|
|
}
|
| 378 |
|
|
}
|
| 379 |
|
|
|
| 380 |
|
|
|
| 381 |
|
|
static
|
| 382 |
gregl |
3.2 |
moveview(dx, dy, move) /* move our view */
|
| 383 |
|
|
int dx, dy, move;
|
| 384 |
|
|
{
|
| 385 |
|
|
VIEW nv;
|
| 386 |
|
|
double d;
|
| 387 |
gregl |
3.4 |
register int i, li;
|
| 388 |
gregl |
3.2 |
/* start with old view */
|
| 389 |
|
|
copystruct(&nv, &odev.v);
|
| 390 |
|
|
/* change view direction */
|
| 391 |
|
|
if (move) {
|
| 392 |
gregl |
3.4 |
if ((li = qtFindLeaf(dx, dy)) < 0)
|
| 393 |
gregl |
3.2 |
return(0); /* not on window */
|
| 394 |
|
|
for (i = 0; i < 3; i++)
|
| 395 |
gregl |
3.4 |
nv.vdir[i] = qtL.wp[li][i] - nv.vp[i];
|
| 396 |
gregl |
3.2 |
} else {
|
| 397 |
|
|
if (viewray(nv.vp, nv.vdir, &odev.v,
|
| 398 |
|
|
(dx+.5)/odev.hres, (dy+.5)/odev.vres) < -FTINY)
|
| 399 |
|
|
return(0); /* outside view */
|
| 400 |
|
|
}
|
| 401 |
|
|
/* move viewpoint */
|
| 402 |
|
|
if (move > 0)
|
| 403 |
|
|
for (i = 0; i < 3; i++)
|
| 404 |
|
|
nv.vp[i] += MOVPCT/100. * nv.vdir[i];
|
| 405 |
|
|
else if (move < 0)
|
| 406 |
|
|
for (i = 0; i < 3; i++)
|
| 407 |
|
|
nv.vp[i] -= MOVPCT/100. * nv.vdir[i];
|
| 408 |
|
|
if (move && headlocked) {
|
| 409 |
|
|
d = 0; /* bring head back to same height */
|
| 410 |
|
|
for (i = 0; i < 3; i++)
|
| 411 |
|
|
d += odev.v.vup[i] * (odev.v.vp[i] - nv.vp[i]);
|
| 412 |
|
|
for (i = 0; i < 3; i++)
|
| 413 |
|
|
nv.vp[i] += d * odev.v.vup[i];
|
| 414 |
|
|
}
|
| 415 |
|
|
if (setview(&nv) != NULL)
|
| 416 |
|
|
return(0); /* illegal view */
|
| 417 |
|
|
dev_view(&nv);
|
| 418 |
|
|
inpresflags |= DEV_NEWVIEW;
|
| 419 |
|
|
return(1);
|
| 420 |
|
|
}
|
| 421 |
|
|
|
| 422 |
|
|
|
| 423 |
|
|
static
|
| 424 |
|
|
getmove(ebut) /* get view change */
|
| 425 |
|
|
XButtonPressedEvent *ebut;
|
| 426 |
|
|
{
|
| 427 |
|
|
int whichbutton = ebut->button;
|
| 428 |
|
|
int oldnodesiz = qtMinNodesiz;
|
| 429 |
|
|
Window rootw, childw;
|
| 430 |
|
|
int rootx, rooty, wx, wy;
|
| 431 |
|
|
unsigned int statemask;
|
| 432 |
|
|
|
| 433 |
|
|
qtMinNodesiz = 16; /* for quicker update */
|
| 434 |
gregl |
3.4 |
qtCompost(50);
|
| 435 |
gregl |
3.2 |
|
| 436 |
|
|
do {
|
| 437 |
|
|
if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw,
|
| 438 |
|
|
&rootx, &rooty, &wx, &wy, &statemask))
|
| 439 |
|
|
break; /* on another screen */
|
| 440 |
|
|
|
| 441 |
|
|
if (!moveview(wx, odev.vres-1-wy, MOVDIR(whichbutton)))
|
| 442 |
|
|
sleep(1);
|
| 443 |
gregl |
3.4 |
else
|
| 444 |
|
|
qtUpdate();
|
| 445 |
gregl |
3.2 |
|
| 446 |
|
|
} while (!XCheckMaskEvent(ourdisplay,
|
| 447 |
|
|
ButtonReleaseMask, levptr(XEvent)));
|
| 448 |
|
|
|
| 449 |
|
|
if (!(inpresflags & DEV_NEWVIEW)) { /* do final motion */
|
| 450 |
|
|
whichbutton = levptr(XButtonReleasedEvent)->button;
|
| 451 |
|
|
wx = levptr(XButtonReleasedEvent)->x;
|
| 452 |
|
|
wy = levptr(XButtonReleasedEvent)->y;
|
| 453 |
|
|
moveview(wx, odev.vres-1-wy, MOVDIR(whichbutton));
|
| 454 |
|
|
}
|
| 455 |
|
|
|
| 456 |
|
|
qtMinNodesiz = oldnodesiz; /* restore quadtree resolution */
|
| 457 |
|
|
}
|
| 458 |
|
|
|
| 459 |
|
|
|
| 460 |
|
|
static
|
| 461 |
gregl |
3.1 |
getkey(ekey) /* get input key */
|
| 462 |
|
|
register XKeyPressedEvent *ekey;
|
| 463 |
|
|
{
|
| 464 |
|
|
int n;
|
| 465 |
|
|
char buf[8];
|
| 466 |
|
|
|
| 467 |
|
|
n = XLookupString(ekey, buf, sizeof(buf), NULL, NULL);
|
| 468 |
|
|
if (n != 1)
|
| 469 |
|
|
return;
|
| 470 |
|
|
switch (buf[0]) {
|
| 471 |
|
|
case 'h': /* turn on height motion lock */
|
| 472 |
gregl |
3.2 |
headlocked = 1;
|
| 473 |
gregl |
3.1 |
return;
|
| 474 |
|
|
case 'H': /* turn off height motion lock */
|
| 475 |
gregl |
3.2 |
headlocked = 0;
|
| 476 |
gregl |
3.1 |
return;
|
| 477 |
gregl |
3.2 |
case CTRL('Z'):
|
| 478 |
|
|
case 'p': /* pause computation */
|
| 479 |
|
|
inpresflags |= DEV_WAIT;
|
| 480 |
|
|
return;
|
| 481 |
|
|
case '\n':
|
| 482 |
|
|
case '\r': /* release */
|
| 483 |
|
|
return;
|
| 484 |
gregl |
3.3 |
case CTRL('R'): /* redraw */
|
| 485 |
|
|
if (ncolors > 0)
|
| 486 |
|
|
new_ctab(ncolors);
|
| 487 |
|
|
qtRedraw(0, 0, odev.hres, odev.vres);
|
| 488 |
|
|
return;
|
| 489 |
gregl |
3.2 |
case CTRL('D'):
|
| 490 |
gregl |
3.1 |
case 'Q':
|
| 491 |
|
|
case 'q': /* quit the program */
|
| 492 |
|
|
inpresflags |= DEV_SHUTDOWN;
|
| 493 |
|
|
return;
|
| 494 |
|
|
default:
|
| 495 |
|
|
XBell(ourdisplay, 0);
|
| 496 |
|
|
return;
|
| 497 |
|
|
}
|
| 498 |
|
|
}
|
| 499 |
|
|
|
| 500 |
|
|
|
| 501 |
|
|
static
|
| 502 |
|
|
fixwindow(eexp) /* repair damage to window */
|
| 503 |
|
|
register XExposeEvent *eexp;
|
| 504 |
|
|
{
|
| 505 |
|
|
if (odev.hres == 0 || odev.vres == 0) { /* first exposure */
|
| 506 |
|
|
odev.hres = eexp->width;
|
| 507 |
|
|
odev.vres = eexp->height;
|
| 508 |
|
|
inpresflags |= DEV_NEWSIZE;
|
| 509 |
|
|
}
|
| 510 |
|
|
qtRedraw(eexp->x, odev.vres - eexp->y - eexp->height,
|
| 511 |
|
|
eexp->x + eexp->width, odev.vres - eexp->y);
|
| 512 |
|
|
}
|
| 513 |
|
|
|
| 514 |
|
|
|
| 515 |
|
|
static
|
| 516 |
|
|
resizewindow(ersz) /* resize window */
|
| 517 |
|
|
register XConfigureEvent *ersz;
|
| 518 |
|
|
{
|
| 519 |
|
|
if (ersz->width == odev.hres && ersz->height == odev.vres)
|
| 520 |
|
|
return;
|
| 521 |
|
|
|
| 522 |
|
|
if (odev.hres != 0 && odev.vres != 0) {
|
| 523 |
|
|
odev.v.horiz = 2.*180./PI * atan(
|
| 524 |
|
|
tan(PI/180./2.*odev.v.horiz) * ersz->width/odev.hres );
|
| 525 |
|
|
odev.v.vert = 2.*180./PI * atan(
|
| 526 |
|
|
tan(PI/180./2.*odev.v.vert) * ersz->height/odev.vres );
|
| 527 |
|
|
inpresflags |= DEV_NEWVIEW;
|
| 528 |
|
|
}
|
| 529 |
|
|
odev.hres = ersz->width;
|
| 530 |
|
|
odev.vres = ersz->height;
|
| 531 |
|
|
|
| 532 |
|
|
inpresflags |= DEV_NEWSIZE;
|
| 533 |
|
|
}
|
