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/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
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|
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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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* OpenGL driver for holodeck display. |
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* Based on GLX driver using T-mesh. |
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#endif |
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#endif |
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#include "standard.h" |
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|
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#include <sys/types.h> |
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#include <time.h> |
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#include <GL/glx.h> |
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#include <GL/glu.h> |
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#ifdef STEREO |
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#include <X11/extensions/SGIStereo.h> |
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#endif |
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|
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#include "standard.h" |
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#include "rhd_odraw.h" |
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#include "rhdisp.h" |
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#include "paths.h" |
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#ifdef DOBJ |
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#include "rhdobj.h" |
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#endif |
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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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#define RAYQLEN 0 /* max. rays to queue before flush */ |
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#endif |
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|
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/* values other than 0 or 255 do not map reliably */ |
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#ifndef PORTALP |
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#define PORTRED 0 /* -1, 0 or 255 */ |
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#define PORTGRN -1 /* -1, 0 or 255 */ |
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#define PORTBLU 255 /* -1, 0 or 255 */ |
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#define PORTALP -1 /* -1 or 255 */ |
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#ifndef MINWIDTH |
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#define MINWIDTH 480 /* minimum graphics window width */ |
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#define MINHEIGHT 400 /* minimum graphics window height */ |
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#endif |
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#define isportal(c) ((PORTRED<0 || (c)[0]==PORTRED) && \ |
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(PORTGRN<0 || (c)[1]==PORTGRN) && \ |
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(PORTBLU<0 || (c)[2]==PORTBLU) && \ |
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(PORTALP<0 || (c)[3]==PORTALP)) |
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#define doportals() if (gmPortals) \ |
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gmDrawPortals(PORTRED,PORTGRN,PORTBLU,PORTALP); else |
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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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#ifndef VIEWDIST |
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#define VIEWDIST 356 /* assumed viewing distance (mm) */ |
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#endif |
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#ifndef BORWIDTH |
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#define BORWIDTH 5 /* border width */ |
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#endif |
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|
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#define VWHEADLOCK 01 /* head position is locked flag */ |
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#define VWPERSP 02 /* perspective view is set */ |
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#define MOVDEG (-5) /* degrees to orbit CW/down /frame */ |
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#define MOVORB(s) ((s)&ShiftMask ? 1 : (s)&ControlMask ? -1 : 0) |
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|
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#define MINWIDTH 480 /* minimum graphics window width */ |
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#define MINHEIGHT 400 /* minimum graphics window height */ |
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|
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#define VIEWDIST 356 /* assumed viewing distance (mm) */ |
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|
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#define BORWIDTH 5 /* border width */ |
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|
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#define setstereobuf(bid) (glXWaitGL(), \ |
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XSGISetStereoBuffer(ourdisplay, gwind, bid), \ |
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glXWaitX()) |
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struct driver odev; /* global device driver structure */ |
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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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static GLfloat *depthbuffer = NULL; /* depth buffer */ |
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static int viewflags; /* what's happening with view */ |
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/* |
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static int resizewindow(), getevent(), getkey(), moveview(), wipeclean(), |
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xferdepth(), freedepth(), setglortho(), |
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setglpersp(), getframe(), getmove(), fixwindow(), mytmflags(); |
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|
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static double getdistance(); |
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*/ |
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static void checkglerr(char *where); |
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static void xferdepth(void); |
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static void freedepth(void); |
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static double getdistance(int dx, int dy, FVECT direc); |
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static int mytmflags(void); |
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static void getevent(void); |
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static void draw3dline(FVECT wp[2]); |
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static void draw_grids(int fore); |
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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 getmove(XButtonPressedEvent *ebut); |
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static void getkey(XKeyPressedEvent *ekey); |
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static void fixwindow(XExposeEvent *eexp); |
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static void resizewindow(XConfigureEvent *ersz); |
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static void waitabit(void); |
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static void setglpersp(void); |
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static void setglortho(void); |
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static void wipeclean(void); |
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|
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#ifdef STEREO |
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static int pushright(), popright(); |
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static void pushright(void); |
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static void popright(void); |
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#endif |
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extern int gmPortals; /* GL portal list id */ |
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extern time_t time(); |
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void |
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dev_open(id) /* initialize GLX driver */ |
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char *id; |
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{ |
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extern char *getenv(); |
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static RGBPRIMS myprims = STDPRIMS; |
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#if (PORTALP<0) |
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static int atlBest[] = {GLX_RGBA, GLX_DOUBLEBUFFER, |
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GLX_RED_SIZE,8, GLX_GREEN_SIZE,8, |
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GLX_BLUE_SIZE,8, GLX_DEPTH_SIZE,15, None}; |
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static int atlOK[] = {GLX_RGBA, GLX_DOUBLEBUFFER, |
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GLX_RED_SIZE,4, GLX_GREEN_SIZE,4, |
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GLX_BLUE_SIZE,4, GLX_DEPTH_SIZE,15, None}; |
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#else |
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static int atlBest[] = {GLX_RGBA, GLX_DOUBLEBUFFER, |
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GLX_RED_SIZE,8, GLX_GREEN_SIZE,8, |
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GLX_BLUE_SIZE,8, GLX_ALPHA_SIZE,1, |
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GLX_DEPTH_SIZE,15, None}; |
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static int atlOK[] = {GLX_RGBA, GLX_DOUBLEBUFFER, |
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GLX_RED_SIZE,5, GLX_GREEN_SIZE,5, |
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GLX_BLUE_SIZE,5, GLX_ALPHA_SIZE,1, |
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GLX_DEPTH_SIZE,15, None}; |
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#endif |
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char *ev; |
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double gamval = GAMMA; |
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RGBPRIMP dpri = stdprims; |
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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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if (tmInit(mytmflags(), dpri, gamval) == NULL) |
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> |
tmGlobal = tmInit(mytmflags(), dpri, gamval); |
211 |
> |
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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/* set window manager hints */ |
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ourxwmhints.flags = InputHint|IconPixmapHint; |
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ourxwmhints.input = True; |
234 |
< |
ourxwmhints.icon_pixmap = XCreateBitmapFromData(ourdisplay, |
235 |
< |
gwind, x11icon_bits, x11icon_width, x11icon_height); |
234 |
> |
ourxwmhints.icon_pixmap = XCreateBitmapFromData(ourdisplay, gwind, |
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> |
(char *)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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#ifdef STEREO |
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glXMakeCurrent(ourdisplay, gwind, gctx); |
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glEnable(GL_DEPTH_TEST); |
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glDepthFunc(GL_LEQUAL); |
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glEnable(GL_DITHER); |
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> |
glClearColor(0, 0, 0, 0); |
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glFrontFace(GL_CCW); |
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glDisable(GL_CULL_FACE); |
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glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE); |
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glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); |
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glPixelStorei(GL_PACK_ALIGNMENT, 1); |
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glPixelStorei(GL_UNPACK_ALIGNMENT, 1); |
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/* figure out sensible view */ |
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pwidth = (double)DisplayWidthMM(ourdisplay, ourscreen) / |
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DisplayWidth(ourdisplay, ourscreen); |
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setstereobuf(STEREO_BUFFER_LEFT); |
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#endif |
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checkglerr("setting rendering parameters"); |
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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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viewflags = VWSTEADY; /* view starts static */ |
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/* map the window */ |
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XMapWindow(ourdisplay, gwind); |
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dev_input(); /* sets size and view angles */ |
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if (!odInit(DisplayWidth(ourdisplay,ourscreen) * |
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< |
DisplayHeight(ourdisplay,ourscreen) / 4)) |
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> |
DisplayHeight(ourdisplay,ourscreen) / 3)) |
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error(SYSTEM, "insufficient memory for value storage"); |
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odev.name = id; |
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odev.firstuse = 1; /* can't recycle samples */ |
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} |
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|
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< |
dev_close() /* close our display and free resources */ |
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> |
void |
286 |
> |
dev_close(void) /* close our display and free resources */ |
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{ |
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#ifdef DOBJ |
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dobj_cleanup(); |
298 |
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gwind = 0; |
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XCloseDisplay(ourdisplay); |
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ourdisplay = NULL; |
301 |
< |
tmDone(NULL); |
301 |
> |
tmDone(tmGlobal); |
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odev.v.type = 0; |
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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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|
308 |
< |
dev_clear() /* clear our representation */ |
308 |
> |
void |
309 |
> |
dev_clear(void) /* clear our representation */ |
310 |
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{ |
311 |
< |
wipeclean(); |
311 |
> |
viewflags |= VWCHANGE; /* pretend our view has changed */ |
312 |
> |
wipeclean(); /* clean off display and samples */ |
313 |
> |
dev_flush(); /* redraw geometry & get depth */ |
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rayqleft = 0; /* hold off update */ |
315 |
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} |
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|
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|
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int |
319 |
< |
dev_view(nv) /* assign new driver view */ |
320 |
< |
register VIEW *nv; |
319 |
> |
dev_view( /* assign new driver view */ |
320 |
> |
VIEW *nv |
321 |
> |
) |
322 |
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{ |
323 |
+ |
#ifdef STEREO |
324 |
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double d; |
325 |
< |
|
325 |
> |
#endif |
326 |
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if (nv->type != VT_PER || /* check view legality */ |
327 |
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nv->horiz > 160. || nv->vert > 160.) { |
328 |
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error(COMMAND, "illegal view type/angle"); |
333 |
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} |
334 |
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if (nv != &odev.v) { |
335 |
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/* resize window? */ |
336 |
< |
if (!FEQ(nv->horiz,odev.v.horiz) || |
337 |
< |
!FEQ(nv->vert,odev.v.vert)) { |
336 |
> |
if (!FABSEQ(nv->horiz,odev.v.horiz) || |
337 |
> |
!FABSEQ(nv->vert,odev.v.vert)) { |
338 |
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int dw = DisplayWidth(ourdisplay,ourscreen); |
339 |
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int dh = DisplayHeight(ourdisplay,ourscreen); |
340 |
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|
358 |
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XResizeWindow(ourdisplay, gwind, odev.hres, odev.vres); |
359 |
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dev_input(); /* get resize event */ |
360 |
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} |
361 |
< |
copystruct(&odev.v, nv); /* setview() already called */ |
355 |
< |
#ifdef STEREO |
356 |
< |
copystruct(&vwright, nv); |
357 |
< |
d = eyesepdist / sqrt(nv->hn2); |
358 |
< |
VSUM(vwright.vp, nv->vp, nv->hvec, d); |
359 |
< |
/* setview(&vwright); -- Unnecessary */ |
360 |
< |
#endif |
361 |
> |
odev.v = *nv; /* setview() already called */ |
362 |
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viewflags |= VWCHANGE; |
363 |
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} |
364 |
+ |
#ifdef STEREO |
365 |
+ |
vwright = *nv; |
366 |
+ |
d = eyesepdist / sqrt(nv->hn2); |
367 |
+ |
VSUM(vwright.vp, nv->vp, nv->hvec, d); |
368 |
+ |
/* setview(&vwright); -- Unnecessary */ |
369 |
+ |
#endif |
370 |
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wipeclean(); |
371 |
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return(1); |
372 |
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} |
373 |
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|
374 |
|
|
375 |
< |
dev_section(gfn, pfn) /* add octree for geometry rendering */ |
376 |
< |
char *gfn, *pfn; |
375 |
> |
void |
376 |
> |
dev_section( /* add octree for geometry rendering */ |
377 |
> |
char *gfn, |
378 |
> |
char *pfn |
379 |
> |
) |
380 |
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{ |
371 |
– |
extern char *index(); |
372 |
– |
char *cp; |
373 |
– |
|
381 |
|
if (gfn == NULL) { |
382 |
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gmEndGeom(); |
383 |
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gmEndPortal(); |
397 |
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} |
398 |
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|
399 |
|
|
400 |
< |
dev_auxcom(cmd, args) /* process an auxiliary command */ |
401 |
< |
char *cmd, *args; |
400 |
> |
void |
401 |
> |
dev_auxcom( /* process an auxiliary command */ |
402 |
> |
char *cmd, |
403 |
> |
char *args |
404 |
> |
) |
405 |
|
{ |
406 |
|
#ifdef DOBJ |
407 |
< |
if (dobj_command(cmd, args) >= 0) |
407 |
> |
int vischange; |
408 |
> |
|
409 |
> |
if ((vischange = dobj_command(cmd, args)) >= 0) { |
410 |
> |
if (vischange) { |
411 |
> |
imm_mode = beam_sync(1) > 0; |
412 |
> |
dev_clear(); |
413 |
> |
} |
414 |
|
return; |
415 |
+ |
} |
416 |
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#endif |
417 |
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sprintf(errmsg, "%s: unknown command", cmd); |
418 |
|
error(COMMAND, errmsg); |
420 |
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|
421 |
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|
422 |
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VIEW * |
423 |
< |
dev_auxview(n, hvres) /* return nth auxiliary view */ |
424 |
< |
int n; |
425 |
< |
int hvres[2]; |
423 |
> |
dev_auxview( /* return nth auxiliary view */ |
424 |
> |
int n, |
425 |
> |
int hvres[2] |
426 |
> |
) |
427 |
|
{ |
428 |
|
hvres[0] = odev.hres; hvres[1] = odev.vres; |
429 |
|
if (n == 0) |
437 |
|
|
438 |
|
|
439 |
|
int |
440 |
< |
dev_input() /* get X11 input */ |
440 |
> |
dev_input(void) /* get X11 input */ |
441 |
|
{ |
442 |
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inpresflags = 0; |
443 |
|
|
452 |
|
} |
453 |
|
|
454 |
|
|
455 |
< |
dev_value(c, d, p) /* add a pixel value to our texture */ |
456 |
< |
COLR c; |
457 |
< |
FVECT d, p; |
455 |
> |
void |
456 |
> |
dev_value( /* add a pixel value to our texture */ |
457 |
> |
COLR c, |
458 |
> |
FVECT d, |
459 |
> |
FVECT p |
460 |
> |
) |
461 |
|
{ |
462 |
|
#ifdef DOBJ |
463 |
|
if (dobj_lightsamp != NULL) { /* in light source sampling */ |
472 |
|
|
473 |
|
|
474 |
|
int |
475 |
< |
dev_flush() /* flush output as appropriate */ |
475 |
> |
dev_flush(void) /* flush output as appropriate */ |
476 |
|
{ |
477 |
|
int ndrawn; |
478 |
|
|
483 |
|
#ifdef DOBJ |
484 |
|
ndrawn += dobj_render(); |
485 |
|
#endif |
465 |
– |
if (ndrawn) |
466 |
– |
doportals(); |
486 |
|
checkglerr("rendering right eye"); |
487 |
|
popright(); /* draw left eye */ |
488 |
|
#endif |
490 |
|
#ifdef DOBJ |
491 |
|
ndrawn += dobj_render(); |
492 |
|
#endif |
474 |
– |
if (ndrawn) |
475 |
– |
doportals(); |
493 |
|
glXSwapBuffers(ourdisplay, gwind); |
494 |
|
checkglerr("rendering base view"); |
495 |
|
} |
518 |
|
} |
519 |
|
|
520 |
|
|
521 |
< |
checkglerr(where) /* check for GL or GLU error */ |
522 |
< |
char *where; |
521 |
> |
static void |
522 |
> |
checkglerr( /* check for GL or GLU error */ |
523 |
> |
char *where |
524 |
> |
) |
525 |
|
{ |
526 |
< |
register GLenum errcode; |
526 |
> |
GLenum errcode; |
527 |
|
|
528 |
|
while ((errcode = glGetError()) != GL_NO_ERROR) { |
529 |
|
sprintf(errmsg, "OpenGL error %s: %s", |
533 |
|
} |
534 |
|
|
535 |
|
|
536 |
< |
static |
537 |
< |
xferdepth() /* load and clear depth buffer */ |
536 |
> |
static void |
537 |
> |
xferdepth(void) /* load and clear depth buffer */ |
538 |
|
{ |
539 |
< |
register GLfloat *dbp; |
540 |
< |
register GLubyte *cbuf; |
539 |
> |
GLfloat *dbp; |
540 |
> |
GLubyte *pbuf; |
541 |
|
|
542 |
|
if (depthbuffer == NULL) { /* allocate private depth buffer */ |
543 |
|
#ifdef STEREO |
550 |
|
} |
551 |
|
/* allocate alpha buffer for portals */ |
552 |
|
if (gmPortals) |
553 |
< |
cbuf = (GLubyte *)malloc(odev.hres*odev.vres * |
535 |
< |
(4*sizeof(GLubyte))); |
553 |
> |
pbuf = (GLubyte *)malloc(odev.hres*odev.vres*sizeof(GLubyte)); |
554 |
|
else |
555 |
< |
cbuf = NULL; |
555 |
> |
pbuf = NULL; |
556 |
|
#ifdef STEREO |
557 |
< |
setstereobuf(STEREO_BUFFER_RIGHT); |
557 |
> |
pushright(); |
558 |
|
glReadPixels(0, 0, odev.hres, odev.vres, |
559 |
|
GL_DEPTH_COMPONENT, GL_FLOAT, depthright); |
560 |
< |
if (cbuf != NULL) |
560 |
> |
if (pbuf != NULL) { |
561 |
> |
glClear(GL_COLOR_BUFFER_BIT); |
562 |
> |
gmDrawPortals(0xff, -1, -1, -1); |
563 |
|
glReadPixels(0, 0, odev.hres, odev.vres, |
564 |
< |
GL_RGBA, GL_UNSIGNED_BYTE, cbuf); |
564 |
> |
GL_RED, GL_UNSIGNED_BYTE, pbuf); |
565 |
> |
} |
566 |
|
for (dbp = depthright + odev.hres*odev.vres; dbp-- > depthright; ) |
567 |
< |
if (cbuf != NULL && isportal(cbuf+4*(dbp-depthright))) |
567 |
> |
if (pbuf != NULL && pbuf[dbp-depthright]&0x40) |
568 |
|
*dbp = FHUGE; |
569 |
|
else |
570 |
|
*dbp = mapdepth(*dbp); |
571 |
|
glClear(GL_DEPTH_BUFFER_BIT); |
551 |
– |
setstereobuf(STEREO_BUFFER_LEFT); |
572 |
|
odDepthMap(1, depthright); |
573 |
+ |
popright(); |
574 |
|
#endif |
575 |
|
/* read back depth buffer */ |
576 |
|
glReadPixels(0, 0, odev.hres, odev.vres, |
577 |
|
GL_DEPTH_COMPONENT, GL_FLOAT, depthbuffer); |
578 |
< |
if (cbuf != NULL) |
578 |
> |
if (pbuf != NULL) { |
579 |
> |
glClear(GL_COLOR_BUFFER_BIT); /* find portals */ |
580 |
> |
gmDrawPortals(0xff, -1, -1, -1); |
581 |
|
glReadPixels(0, 0, odev.hres, odev.vres, |
582 |
< |
GL_RGBA, GL_UNSIGNED_BYTE, cbuf); |
582 |
> |
GL_RED, GL_UNSIGNED_BYTE, pbuf); |
583 |
> |
#ifdef DEBUG |
584 |
> |
glXSwapBuffers(ourdisplay, gwind); |
585 |
> |
#endif |
586 |
> |
} |
587 |
|
for (dbp = depthbuffer + odev.hres*odev.vres; dbp-- > depthbuffer; ) |
588 |
< |
if (cbuf != NULL && isportal(cbuf+4*(dbp-depthbuffer))) |
588 |
> |
if (pbuf != NULL && pbuf[dbp-depthbuffer]&0x40) |
589 |
|
*dbp = FHUGE; |
590 |
|
else |
591 |
|
*dbp = mapdepth(*dbp); |
592 |
|
glClear(GL_DEPTH_BUFFER_BIT); /* clear system depth buffer */ |
566 |
– |
if (cbuf != NULL) |
567 |
– |
free((char *)cbuf); /* free our color buffer */ |
593 |
|
odDepthMap(0, depthbuffer); /* transfer depth data */ |
594 |
+ |
if (pbuf != NULL) |
595 |
+ |
free((void *)pbuf); /* free our portal buffer */ |
596 |
|
} |
597 |
|
|
598 |
|
|
599 |
< |
static |
600 |
< |
freedepth() /* free recorded depth buffer */ |
599 |
> |
static void |
600 |
> |
freedepth(void) /* free recorded depth buffer */ |
601 |
|
{ |
602 |
|
if (depthbuffer == NULL) |
603 |
|
return; |
604 |
|
#ifdef STEREO |
605 |
|
odDepthMap(1, NULL); |
606 |
< |
free((char *)depthright); |
606 |
> |
free((void *)depthright); |
607 |
|
depthright = NULL; |
608 |
|
#endif |
609 |
|
odDepthMap(0, NULL); |
610 |
< |
free((char *)depthbuffer); |
610 |
> |
free((void *)depthbuffer); |
611 |
|
depthbuffer = NULL; |
612 |
|
} |
613 |
|
|
614 |
|
|
615 |
|
static double |
616 |
< |
getdistance(dx, dy, direc) /* distance from fore plane along view ray */ |
617 |
< |
int dx, dy; |
618 |
< |
FVECT direc; |
616 |
> |
getdistance( /* distance from fore plane along view ray */ |
617 |
> |
int dx, |
618 |
> |
int dy, |
619 |
> |
FVECT direc |
620 |
> |
) |
621 |
|
{ |
622 |
|
GLfloat gldepth; |
594 |
– |
GLubyte glcolor[4]; |
623 |
|
double dist; |
624 |
|
|
625 |
< |
if (dx<0 | dx>=odev.hres | dy<0 | dy>=odev.vres) |
625 |
> |
if ((dx<0) | (dx>=odev.hres) | (dy<0) | (dy>=odev.vres)) |
626 |
|
return(FHUGE); |
627 |
|
if (depthbuffer != NULL) |
628 |
|
dist = depthbuffer[dy*odev.hres + dx]; |
629 |
|
else { |
630 |
|
glReadPixels(dx,dy, 1,1, GL_DEPTH_COMPONENT, |
631 |
|
GL_FLOAT, &gldepth); |
632 |
< |
if (gmPortals) { |
633 |
< |
glReadPixels(dx,dy, 1,1, GL_RGBA, |
606 |
< |
GL_UNSIGNED_BYTE, glcolor); |
607 |
< |
if (isportal(glcolor)) |
608 |
< |
return(FHUGE); |
609 |
< |
} |
632 |
> |
if (gldepth <= FTINY) |
633 |
> |
return (FHUGE); /* call failed */ |
634 |
|
dist = mapdepth(gldepth); |
635 |
|
} |
636 |
|
if (dist >= .99*FHUGE) |
640 |
|
|
641 |
|
|
642 |
|
#ifdef STEREO |
643 |
< |
static |
644 |
< |
pushright() /* push on right view & buffer */ |
643 |
> |
static void |
644 |
> |
pushright(void) /* push on right view & buffer */ |
645 |
|
{ |
646 |
|
double d; |
647 |
|
|
657 |
|
} |
658 |
|
|
659 |
|
|
660 |
< |
static |
661 |
< |
popright() /* pop off right view & buffer */ |
660 |
> |
static void |
661 |
> |
popright(void) /* pop off right view & buffer */ |
662 |
|
{ |
663 |
|
if (viewflags & VWPERSP) { |
664 |
|
glMatrixMode(GL_MODELVIEW); |
670 |
|
|
671 |
|
|
672 |
|
static int |
673 |
< |
mytmflags() /* figure out tone mapping flags */ |
673 |
> |
mytmflags(void) /* figure out tone mapping flags */ |
674 |
|
{ |
675 |
|
extern char *progname; |
676 |
< |
register char *cp, *tail; |
676 |
> |
char *cp, *tail; |
677 |
|
/* find basic name */ |
678 |
|
for (cp = tail = progname; *cp; cp++) |
679 |
|
if (*cp == '/') |
694 |
|
} |
695 |
|
|
696 |
|
|
697 |
< |
static |
698 |
< |
getevent() /* get next event */ |
697 |
> |
static void |
698 |
> |
getevent(void) /* get next event */ |
699 |
|
{ |
700 |
|
XNextEvent(ourdisplay, levptr(XEvent)); |
701 |
|
switch (levptr(XEvent)->type) { |
716 |
|
getkey(levptr(XKeyPressedEvent)); |
717 |
|
break; |
718 |
|
case ButtonPress: |
719 |
< |
if (FRAMESTATE(levptr(XButtonPressedEvent)->state)) |
720 |
< |
getframe(levptr(XButtonPressedEvent)); |
719 |
> |
if (FRAMESTATE(levptr(XButtonPressedEvent)->state)) |
720 |
> |
getframe(levptr(XButtonPressedEvent)); |
721 |
|
else |
722 |
< |
getmove(levptr(XButtonPressedEvent)); |
722 |
> |
switch (levptr(XButtonPressedEvent)->button) { |
723 |
> |
case Button4: /* wheel up */ |
724 |
> |
case Button5: /* wheel down */ |
725 |
> |
break; |
726 |
> |
default: |
727 |
> |
getmove(levptr(XButtonPressedEvent)); |
728 |
> |
break; |
729 |
> |
} |
730 |
|
break; |
731 |
|
} |
732 |
|
} |
733 |
|
|
734 |
|
|
735 |
< |
static |
736 |
< |
draw3dline(wp) /* draw 3d line in world coordinates */ |
737 |
< |
register FVECT wp[2]; |
735 |
> |
static void |
736 |
> |
draw3dline( /* draw 3d line in world coordinates */ |
737 |
> |
FVECT wp[2] |
738 |
> |
) |
739 |
|
{ |
740 |
|
glVertex3d(wp[0][0], wp[0][1], wp[0][2]); |
741 |
|
glVertex3d(wp[1][0], wp[1][1], wp[1][2]); |
742 |
|
} |
743 |
|
|
744 |
|
|
745 |
< |
static |
746 |
< |
draw_grids(fore) /* draw holodeck section grids */ |
747 |
< |
int fore; |
745 |
> |
static void |
746 |
> |
draw_grids( /* draw holodeck section grids */ |
747 |
> |
int fore |
748 |
> |
) |
749 |
|
{ |
750 |
|
glPushAttrib(GL_LIGHTING_BIT|GL_ENABLE_BIT); |
751 |
|
glDisable(GL_LIGHTING); |
761 |
|
} |
762 |
|
|
763 |
|
|
764 |
< |
static |
765 |
< |
moveview(dx, dy, mov, orb) /* move our view */ |
766 |
< |
int dx, dy, mov, orb; |
764 |
> |
static int |
765 |
> |
moveview( /* move our view */ |
766 |
> |
int dx, |
767 |
> |
int dy, |
768 |
> |
int mov, |
769 |
> |
int orb |
770 |
> |
) |
771 |
|
{ |
772 |
|
VIEW nv; |
773 |
|
FVECT odir, v1, wip; |
774 |
< |
double d, d1; |
775 |
< |
register int li; |
774 |
> |
double d; |
775 |
> |
#ifdef DOBJ |
776 |
> |
double d1; |
777 |
> |
#endif |
778 |
|
/* start with old view */ |
779 |
< |
copystruct(&nv, &odev.v); |
779 |
> |
nv = odev.v; |
780 |
|
/* orient our motion */ |
781 |
|
if (viewray(v1, odir, &odev.v, |
782 |
|
(dx+.5)/odev.hres, (dy+.5)/odev.vres) < -FTINY) |
799 |
|
VSUM(nv.vp, wip, odir, -1.); |
800 |
|
spinvector(nv.vdir, nv.vdir, nv.vup, d); |
801 |
|
} else if (orb) { /* orbit up/down */ |
802 |
< |
fcross(v1, odir, nv.vup); |
803 |
< |
if (normalize(v1) == 0.) |
802 |
> |
if (geodesic(odir, odir, nv.vup, |
803 |
> |
d=MOVDEG*PI/180.*orb, GEOD_RAD) == 0.0) |
804 |
|
return(0); |
766 |
– |
spinvector(odir, odir, v1, d=MOVDEG*PI/180.*orb); |
805 |
|
VSUM(nv.vp, wip, odir, -1.); |
806 |
< |
spinvector(nv.vdir, nv.vdir, v1, d); |
806 |
> |
geodesic(nv.vdir, nv.vdir, nv.vup, d, GEOD_RAD); |
807 |
|
} else if (mov) { /* move forward/backward */ |
808 |
|
d = MOVPCT/100. * mov; |
809 |
|
VSUM(nv.vp, nv.vp, odir, d); |
821 |
|
} |
822 |
|
|
823 |
|
|
824 |
< |
static |
825 |
< |
getframe(ebut) /* get focus frame */ |
826 |
< |
XButtonPressedEvent *ebut; |
824 |
> |
static void |
825 |
> |
getframe( /* get focus frame */ |
826 |
> |
XButtonPressedEvent *ebut |
827 |
> |
) |
828 |
|
{ |
829 |
|
int startx = ebut->x, starty = ebut->y; |
830 |
< |
int endx, endy; |
831 |
< |
|
830 |
> |
int endx, endy, midx, midy; |
831 |
> |
FVECT odir, v1; |
832 |
> |
double d; |
833 |
> |
#ifdef DOBJ |
834 |
> |
double d1; |
835 |
> |
#endif |
836 |
> |
/* get mouse drag */ |
837 |
|
XMaskEvent(ourdisplay, ButtonReleaseMask, levptr(XEvent)); |
838 |
|
endx = levptr(XButtonReleasedEvent)->x; |
839 |
|
endy = levptr(XButtonReleasedEvent)->y; |
840 |
< |
if (endx == startx | endy == starty) { |
841 |
< |
XBell(ourdisplay, 0); |
840 |
> |
midx = (startx + endx) >> 1; |
841 |
> |
midy = (starty + endy) >> 1; |
842 |
> |
/* set focus distance */ |
843 |
> |
if (viewray(v1, odir, &odev.v, |
844 |
> |
(midx+.5)/odev.hres, (midy+.5)/odev.vres) < -FTINY) |
845 |
|
return; |
846 |
< |
} |
847 |
< |
if (endx < startx) {register int c = endx; endx = startx; startx = c;} |
848 |
< |
if (endy < starty) {register int c = endy; endy = starty; starty = c;} |
846 |
> |
d = getdistance(midx, midy, odir); /* distance from front plane */ |
847 |
> |
#ifdef DOBJ |
848 |
> |
d1 = dobj_trace(NULL, v1, odir); |
849 |
> |
if (d1 < d) |
850 |
> |
d = d1; |
851 |
> |
#endif |
852 |
> |
if (d < .99*FHUGE) |
853 |
> |
odev.v.vdist = d + sqrt(dist2(v1, odev.v.vp)); |
854 |
> |
/* set frame for rendering */ |
855 |
> |
if ((endx == startx) | (endy == starty)) |
856 |
> |
return; |
857 |
> |
if (endx < startx) {int c = endx; endx = startx; startx = c;} |
858 |
> |
if (endy < starty) {int c = endy; endy = starty; starty = c;} |
859 |
|
sprintf(odev_args, "%.3f %.3f %.3f %.3f", |
860 |
|
(startx+.5)/odev.hres, 1.-(endy+.5)/odev.vres, |
861 |
|
(endx+.5)/odev.hres, 1.-(starty+.5)/odev.vres); |
863 |
|
} |
864 |
|
|
865 |
|
|
866 |
< |
static |
867 |
< |
getmove(ebut) /* get view change */ |
811 |
< |
XButtonPressedEvent *ebut; |
866 |
> |
static void |
867 |
> |
waitabit(void) /* pause a moment */ |
868 |
|
{ |
869 |
+ |
struct timespec ts; |
870 |
+ |
ts.tv_sec = 0; |
871 |
+ |
ts.tv_nsec = 100000000L; |
872 |
+ |
nanosleep(&ts, NULL); |
873 |
+ |
} |
874 |
+ |
|
875 |
+ |
|
876 |
+ |
static void |
877 |
+ |
getmove( /* get view change */ |
878 |
+ |
XButtonPressedEvent *ebut |
879 |
+ |
) |
880 |
+ |
{ |
881 |
|
int movdir = MOVDIR(ebut->button); |
882 |
|
int movorb = MOVORB(ebut->state); |
883 |
|
int ndrawn; |
888 |
|
XNoOp(ourdisplay); /* makes sure we're not idle */ |
889 |
|
|
890 |
|
viewflags &= ~VWSTEADY; /* flag moving view */ |
891 |
< |
setglpersp(&odev.v); /* start us off in perspective */ |
891 |
> |
setglpersp(); /* start us off in perspective */ |
892 |
|
while (!XCheckMaskEvent(ourdisplay, |
893 |
|
ButtonReleaseMask, levptr(XEvent))) { |
894 |
+ |
/* pause so as not to move too fast */ |
895 |
+ |
waitabit(); |
896 |
|
/* get cursor position */ |
897 |
|
if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw, |
898 |
|
&rootx, &rooty, &wx, &wy, &statemask)) |
910 |
|
#ifdef DOBJ |
911 |
|
ndrawn += dobj_render(); |
912 |
|
#endif |
843 |
– |
if (ndrawn) |
844 |
– |
doportals(); |
913 |
|
popright(); |
914 |
|
#endif |
915 |
|
/* redraw octrees */ |
917 |
|
#ifdef DOBJ |
918 |
|
ndrawn += dobj_render(); /* redraw objects */ |
919 |
|
#endif |
852 |
– |
if (ndrawn) |
853 |
– |
doportals(); |
920 |
|
glXSwapBuffers(ourdisplay, gwind); |
921 |
|
if (!ndrawn) |
922 |
|
sleep(1); /* for reasonable interaction */ |
931 |
|
} |
932 |
|
|
933 |
|
|
934 |
< |
static |
935 |
< |
setglpersp(vp) /* set perspective view in GL */ |
870 |
< |
register VIEW *vp; |
934 |
> |
static void |
935 |
> |
setglpersp(void) /* set perspective view in GL */ |
936 |
|
{ |
937 |
|
double d, xmin, xmax, ymin, ymax; |
938 |
|
GLfloat vec[4]; |
944 |
|
dev_zmax = 100.; |
945 |
|
} else { |
946 |
|
dev_zmin = 0.5*depthlim[0]; |
947 |
< |
dev_zmax = 1.75*depthlim[1]; |
947 |
> |
dev_zmax = 1.25*depthlim[1]; |
948 |
|
if (dev_zmin > dev_zmax/5.) |
949 |
|
dev_zmin = dev_zmax/5.; |
950 |
|
} |
952 |
|
dev_zmin = odev.v.vfore; |
953 |
|
if (odev.v.vaft > FTINY) |
954 |
|
dev_zmax = odev.v.vaft; |
955 |
< |
if (dev_zmin < dev_zmax/100.) |
956 |
< |
dev_zmin = dev_zmax/100.; |
955 |
> |
if (dev_zmin*500. < dev_zmax) |
956 |
> |
dev_zmin = dev_zmax/500.; |
957 |
|
setzrat(); |
958 |
|
xmax = dev_zmin * tan(PI/180./2. * odev.v.horiz); |
959 |
|
xmin = -xmax; |
993 |
|
} |
994 |
|
|
995 |
|
|
996 |
< |
static |
997 |
< |
setglortho() /* set up orthographic view for cone drawing */ |
996 |
> |
static void |
997 |
> |
setglortho(void) /* set up orthographic view for cone drawing */ |
998 |
|
{ |
999 |
|
glDrawBuffer(GL_FRONT); /* use single-buffer mode */ |
1000 |
|
/* set view matrix */ |
1010 |
|
} |
1011 |
|
|
1012 |
|
|
1013 |
< |
static |
1014 |
< |
wipeclean() /* prepare for redraw */ |
1013 |
> |
static void |
1014 |
> |
wipeclean(void) /* prepare for redraw */ |
1015 |
|
{ |
1016 |
|
glDrawBuffer(GL_BACK); /* use double-buffer mode */ |
1017 |
< |
glReadBuffer(GL_FRONT); /* read back visible contents */ |
953 |
< |
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); |
1017 |
> |
glReadBuffer(GL_BACK); |
1018 |
|
/* clear buffers */ |
1019 |
|
#ifdef STEREO |
1020 |
|
setstereobuf(STEREO_BUFFER_RIGHT); |
1022 |
|
setstereobuf(STEREO_BUFFER_LEFT); |
1023 |
|
#endif |
1024 |
|
glClear(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT); |
961 |
– |
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_FALSE); |
1025 |
|
freedepth(); |
1026 |
|
if ((viewflags&(VWCHANGE|VWSTEADY)) == |
1027 |
|
(VWCHANGE|VWSTEADY)) { /* clear samples if new */ |
1028 |
|
odClean(); |
1029 |
|
viewflags &= ~VWCHANGE; /* change noted */ |
1030 |
< |
} |
1031 |
< |
setglpersp(&odev.v); /* reset view & clipping planes */ |
1030 |
> |
} else if (viewflags & VWSTEADY) |
1031 |
> |
odRedrawAll(); |
1032 |
> |
setglpersp(); /* reset view & clipping planes */ |
1033 |
|
} |
1034 |
|
|
1035 |
|
|
1036 |
< |
static |
1037 |
< |
getkey(ekey) /* get input key */ |
1038 |
< |
register XKeyPressedEvent *ekey; |
1036 |
> |
static void |
1037 |
> |
getkey( /* get input key */ |
1038 |
> |
XKeyPressedEvent *ekey |
1039 |
> |
) |
1040 |
|
{ |
1041 |
|
Window rootw, childw; |
1042 |
|
int rootx, rooty, wx, wy; |
1080 |
|
inpresflags |= DFL(DC_RESUME); |
1081 |
|
return; |
1082 |
|
case CTRL('R'): /* redraw screen */ |
1083 |
< |
odRemap(0); |
1083 |
> |
odRemap(0); /* new tone mapping */ |
1084 |
|
glClear(GL_DEPTH_BUFFER_BIT); |
1085 |
|
#ifdef STEREO |
1086 |
|
setstereobuf(STEREO_BUFFER_RIGHT); |
1090 |
|
return; |
1091 |
|
case CTRL('L'): /* refresh from server */ |
1092 |
|
if (inpresflags & DFL(DC_REDRAW)) |
1093 |
< |
return; |
1093 |
> |
return; /* already called */ |
1094 |
|
XRaiseWindow(ourdisplay, gwind); |
1095 |
< |
XFlush(ourdisplay); |
1096 |
< |
sleep(1); |
1097 |
< |
wipeclean(); /* fresh display */ |
1098 |
< |
odRemap(1); /* fresh tone mapping */ |
1034 |
< |
dev_flush(); /* draw octrees */ |
1095 |
> |
XFlush(ourdisplay); /* raise up window */ |
1096 |
> |
sleep(1); /* wait for restacking */ |
1097 |
> |
dev_clear(); /* clear buffer and samples */ |
1098 |
> |
odRemap(1); /* start fresh histogram */ |
1099 |
|
inpresflags |= DFL(DC_REDRAW); /* resend values from server */ |
1036 |
– |
rayqleft = 0; /* hold off update */ |
1100 |
|
return; |
1101 |
|
case 'K': /* kill rtrace process(es) */ |
1102 |
|
inpresflags |= DFL(DC_KILL); |
1117 |
|
} |
1118 |
|
|
1119 |
|
|
1120 |
< |
static |
1121 |
< |
fixwindow(eexp) /* repair damage to window */ |
1122 |
< |
register XExposeEvent *eexp; |
1120 |
> |
static void |
1121 |
> |
fixwindow( /* repair damage to window */ |
1122 |
> |
XExposeEvent *eexp |
1123 |
> |
) |
1124 |
|
{ |
1125 |
|
int xmin, ymin, xmax, ymax; |
1126 |
|
|
1127 |
< |
if (odev.hres == 0 | odev.vres == 0) { /* first exposure */ |
1127 |
> |
if ((odev.hres == 0) | (odev.vres == 0)) { /* first exposure */ |
1128 |
|
resizewindow((XConfigureEvent *)eexp); |
1129 |
|
return; |
1130 |
|
} |
1131 |
|
xmin = eexp->x; xmax = eexp->x + eexp->width; |
1132 |
|
ymin = odev.vres - eexp->y - eexp->height; ymax = odev.vres - eexp->y; |
1133 |
+ |
|
1134 |
+ |
if (xmin <= 0 && xmax >= odev.hres-1 && |
1135 |
+ |
ymin <= 0 && ymax >= odev.vres) { |
1136 |
+ |
DCHECK(eexp->count, WARNING, "multiple clear in fixwindow"); |
1137 |
+ |
wipeclean(); /* make sure we're go */ |
1138 |
+ |
return; |
1139 |
+ |
} |
1140 |
|
/* clear portion of depth */ |
1141 |
|
glPushAttrib(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT); |
1142 |
|
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); |
1163 |
|
} |
1164 |
|
|
1165 |
|
|
1166 |
< |
static |
1167 |
< |
resizewindow(ersz) /* resize window */ |
1168 |
< |
register XConfigureEvent *ersz; |
1166 |
> |
static void |
1167 |
> |
resizewindow( /* resize window */ |
1168 |
> |
XConfigureEvent *ersz |
1169 |
> |
) |
1170 |
|
{ |
1171 |
|
glViewport(0, 0, ersz->width, ersz->height); |
1172 |
|
|