Newer
Older
* Revision 1.33 2001/03/15 15:37:06 slevy
* Yeow -- handle VIRDIR prefix properly!
* Complain of unrecognized data commands.
*
* Revision 1.32 2001/03/14 17:27:05 slevy
* Make rejoinargs() work -- don't omit last arg.
* "object" command alone reports our currently selected object.
*
* Revision 1.31 2001/03/13 22:45:08 slevy
* Add "verbose" flag to parti_allobjs, so "gall -v ..."
* reports object name before invoking each command.
*
* Revision 1.30 2001/03/13 08:23:39 slevy
* Use parti_object's new "create-if-not-present" flag.
* Data-language references can create, command-language ones can't.
* Switch specks_read() to argc/argv style, using new "tokenize()" function.
* Some commands still want the original string, so we also have rejoinargs().
* Allow for adjustable comment length with "maxcomment" data command.
* New "ellipsoid" and "mesh" objects. Only quadmeshes implemented right now.
* Data-language "tfm" command is now quiet. Command-language tfm still verbose.
* Check at run time for endian-config errors and refuse to run if wrong!
*
* Revision 1.29 2001/03/08 22:02:29 slevy
* Disable the parti menu unless PARTIMENU envar set.
* Allow alpha to adjust brightness of mesh objects.
*
* Revision 1.28 2001/03/05 03:04:41 slevy
* Add mesh objects. Or, quad meshes, anyway.
*
* Revision 1.27 2001/03/04 16:47:35 slevy
* Make "add" and "eval" behave consistently.
* polyorivar and texturevar now accept field names as well as numbers.
*
* Revision 1.25 2001/02/19 22:01:16 slevy
* Satisfy windows C compiler: pull enum FadeModel outside struct speck, etc.
*
* Revision 1.24 2001/02/19 20:50:33 slevy
* Oops, "object" should always invoke parti_object() whether there's an
* alias or not!
*
* Revision 1.23 2001/02/17 22:02:54 slevy
* Enlarge polygons so that unit circle is inscribed, not circumscribed.
* Then "txscale .5" always shows entire texture regardless of polysides.
* Add new "ptsize" command -- makes more sense than "fast". "fast" still works.
*
* Revision 1.22 2001/02/17 17:44:05 slevy
* For polygons, rotate circle of vertices by 1/2 step.
* Then, for "polysides 4" and "txscale .707",
* the vertices coincide with the corners of the 0..1 texture.
*
* Revision 1.21 2001/02/17 05:39:45 slevy
* Allow (in data language) "object gN=NAME".
*
* Revision 1.20 2001/02/15 05:41:12 slevy
* new textcmap, textcment commands. Regularize color-gamma-mapping.
* Object aliases: "object gN=ALIAS", or in command mode, "gN=ALIAS".
* Accept "ellipsoid" data tag; not yet implemented.
*
* Revision 1.19 2001/02/05 00:41:52 slevy
* Accept "time" as synonym for "step".
* Add "pickrange".
* Mention jump, center in help msg.
* Revision 1.17 2001/02/03 16:49:42 slevy
* Update cookedcmap when "cment" changes cmap.
*
* Revision 1.15 2001/02/03 14:50:44 slevy
* Add "setgamma" (abbr. "setgam" or "cgam") command to adjust colors.
* Add "kira tree {off|on|cross|tick} [tickscale]" subcommand
* for showing tree structure of interacting groups.
*
* Revision 1.14 2001/01/31 17:11:54 slevy
* Ensure that, for starlab, clock is always in "continuous" mode.
*
* Revision 1.13 2001/01/31 17:07:12 slevy
* Add RCS Id and Log strings.
*
*/
#define __USE_MISC /* makes <math.h> define sqrtf() on GNU libc */
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <ctype.h>
#if !sgi && !defined(sqrtf)
# define sqrtf(x) sqrt(x) /* if no sqrtf() */
#endif
#undef isspace /* hack for irix 6.5 back-compat */
#undef isdigit
#undef isalnum
#if unix
# include <unistd.h>
# include <sys/types.h>
# include <netinet/in.h> /* for htonl */
# ifndef WORDS_BIGENDIAN
# include "config.h" /* for WORDS_BIGENDIAN */
# endif
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#define RGBALPHA(rgb, alpha) ((rgb) | (alpha))
#define RGBWHITE 0xFFFFFF00
#define PACKRGBA(r,g,b,a) ((r)<<24 | (g)<<16 | (b)<<8 | (a))
#define THRESHBIT PACKRGBA(0,0,0,1)
#else
#define RGBALPHA(rgb, alpha) ((rgb) | ((alpha)<<24))
#define RGBWHITE 0x00FFFFFF
#define PACKRGBA(r,g,b,a) ((a)<<24 | (b)<<16 | (g)<<8 | (r))
#define THRESHBIT PACKRGBA(0,0,0,1)
#endif
#if CAVE
# define CAVEMENU 1
#endif
#include "geometry.h"
#include <GL/gl.h>
#if CAVEMENU
#include <cave_ogl.h>
#include "cavemenu.h"
#include "vd_util.h"
#define IFMENU(x) (x)
#else
#define IFMENU(x)
#endif
#include "shmem.h" /* NewN(), etc. */
#include "futil.h"
#include "specks.h"
#include "textures.h"
#include "findfile.h"
#include "partiviewc.h"
#include "sfont.h"
#include <sys/types.h>
#include <signal.h>
#ifdef sgi
#include <malloc.h> /* for mallinfo(), amallinfo() */
#endif
/* Star Renderer (.sdb) structure -- from stardef.h */
typedef enum {ST_POINT, ST_BRIGHT_CLOUD ,ST_DARK_CLOUD, ST_BOTH_CLOUD, ST_OFF} stype;
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typedef struct {
float x, y, z;
float dx, dy, dz;
float magnitude, radius;
float opacity;
int num;
unsigned short color;
unsigned char group;
unsigned char type;
} db_star;
typedef struct hrec { float t; int num;} hrec_t;
typedef struct mrec { float mass, x, y, z, vx, vy, vz, rho, temp, sfr, gasmass;
int id, token;} mrec_t;
/* end Star Renderer */
#define VDOT( v1, v2 ) ( (v1)->x[0]*(v2)->x[0] + (v1)->x[1]*(v2)->x[1] + (v1)->x[2]*(v2)->x[2] )
#if CAVEMENU
int parti_menuwall, parti_menubox[4];
static MenuHead *pmenu = NULL;
static MenuHead *stubmenu = NULL;
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struct ments {
MenuEnt *alpha, *point, *poly, *label, *psize, *polysize, *fog;
MenuEnt *step, *fwd, *lumvar, *slum, *colorvar, *where[4];
MenuEnt *viewall, *setscale, *speed, *fspeed, *every;
MenuEnt *seedata, *box, *boxlevel[12];
MenuEnt *annot;
MenuEnt *tknob[3];
MenuEnt *menu;
} ment;
struct boxleveler {
struct stuff *st;
int level;
};
void set_tknob( float val, MenuEnt *me, void *st );
void set_psize( float psize, MenuEnt *me, void *st );
void set_polysize( float psize, MenuEnt *me, void *st );
void set_alpha( float alpha, MenuEnt *me, void *st );
void set_point( int on, MenuEnt *me, void *st );
void set_poly( int on, MenuEnt *me, void *st );
void set_label( int on, MenuEnt *me, void *st );
void set_step( float time0, MenuEnt *me, void *st );
void set_fwd( int fwd, MenuEnt *me, void *st );
void set_slum( float slum, MenuEnt *me, void *st );
void set_lumvar( int which, MenuEnt *me, void *st );
void set_colorvar( int which, MenuEnt *me, void *st );
void set_seedata( int which, MenuEnt *me, void *st );
void set_speed( float speed, MenuEnt *me, void *st );
void set_fspeed( float fspeed, MenuEnt *me, void *st );
void set_every( float every, MenuEnt *me, void *st );
void set_scale( float logscale, MenuEnt *me, void *st );
void set_viewall( int all, MenuEnt *me, void *st );
void set_allboxes( int on, MenuEnt *me, void *st );
void set_boxlevel( int on, MenuEnt *me, void *bleveler );
void set_where( int unused, MenuEnt *me, void *st );
void set_menu( int on, MenuEnt *me, void *st );
#endif /*CAVEMENU*/
static int defcmap[] = {
0x11eeee00,
0x1106ee00, 0x120ea900, 0x1316ce00, 0x1520d500, 0x172ece00, 0x193fcb00,
0x1c54b400, 0x206da400, 0x24889200, 0x2aa58400, 0x33c07600, 0x3ed96a00,
0x4eed6100, 0x63fa5a00, 0x7efe5100, 0x99fb4c00, 0xafef4700, 0xc0dc4000,
0xcbc33900, 0xd4a83000, 0xda8b2900, 0xdf702700, 0xe2572500, 0xe5411700,
0xe82f1000, 0xea211500, 0xeb171400, 0xed0f1200, 0xee0aee00,
0xffffff00,
};
int orientboxcolor = PACKRGBA( 0xff, 0xff, 0, 0xff );
void specks_read( struct stuff **stp, char *fname );
void specks_read_boxes( struct stuff *st, char *fname, int timestep );
int specks_add_box( struct stuff *st, struct AMRbox *box, int timestep );
int specks_purge( void *vstuff, int nbytes, void *aarena );
int specks_count( struct specklist *head );
int specks_gobox( struct stuff *st, int boxno, int argcrest, char *argvrest[] );
int specks_cookcment( struct stuff *st, int cment );
void specks_rgbremap( struct stuff *st );
struct specklist **specks_find_annotation( struct stuff *, struct specklist **);
void specks_set_current_annotation( struct stuff *st, char *annotation );
void specks_add_annotation( struct stuff *st, char *annotation, int timestep );
extern int getfloats( float *v, int nfloats, int arg0, int argc, char **argv );
extern int specks_set_byvariable( struct stuff *st, char *str, int *val );
static char separ[] = " \t\n";
void strncpyt( char *dst, char *src, int dstsize ) {
int len = strlen(src);
if(len >= dstsize) len = dstsize-1;
memcpy(dst, src, len);
dst[len] = '\0';
}
#ifdef sgi
static float defgamma = 1.0;
#else
static float defgamma = 2.5;
#endif
struct stuff *
specks_init( int argc, char *argv[] )
{
int i;
struct stuff *st = NewN( struct stuff, 1 );
char *menuopt;
i = PACKRGBA(1, 0, 0, 0);
if(*(char *)&i != 1) {
msg("specks_init(): trouble: is WORDS_BIGENDIAN mis-set? Giving up.");
exit(1);
}
memset(st, 0, sizeof(*st));
st->spacescale = 1.0;
st->fog = 0;
st->psize = 1;
st->alpha = .5;
st->gamma = defgamma;
st->rgbgamma[0] = st->rgbgamma[1] = st->rgbgamma[2] = 1.0;
st->rgbright[0] = st->rgbright[1] = st->rgbright[2] = 1.0;
specks_rgbremap( st );
st->alias = NULL;
st->useme = 1;
st->usepoly = 0;
st->usepoint = 1;
st->usetext = 1;
st->usetextaxes = 1;
st->usetextures = 1;
st->useboxes = 1;
st->polysizevar = -1;
st->polyarea = 0;
st->polyorivar0 = -1;
st->texturevar = -1;
st->txscale = .5;
st->boxlabels = 0;
st->boxlabelscale = 1.0;
st->boxlevelmask = ~0; /* all levels on */
st->boxaxes = 0; /* boxes don't show orientation markers */
st->goboxscale = 1.0;
st->textsize = .05;
st->npolygon = 11;
st->subsample = 1;
st->maxcomment = sizeof(st->sl->specks->title) - 1;
st->menudemandfps = 4.0;
st->pfaint = .05; /* params for "fast" point-drawing */
st->plarge = 10;
st->polymin = .5; /* don't draw polygons if smaller (pixels) */
st->polymax = 2048; /* don't allow polygons to get bigger than this (pixels) */
st->textmin = 2; /* replace labels with line-segments if smaller (pixels) */
st->ntextures = 0;
st->textures = NULL;
st->fade = F_SPHERICAL;
st->fadeknee1 = 10.0;
st->fadeknee2 = 1.0;
st->knee2steep = 1.0;
st->gscale = 1.;
st->gtrans.x[0] = st->gtrans.x[1] = st->gtrans.x[2] = 0;
st->objTo2w = Tidentity;
st->ncmap = st->boxncmap = st->textncmap = COUNT(defcmap);
st->cmap = NewN(struct cment, COUNT(defcmap));
st->boxcmap = NewN(struct cment, COUNT(defcmap));
st->textcmap = NewN(struct cment, COUNT(defcmap));
st->cmap[i].raw = st->boxcmap[i].raw = st->textcmap[i].raw
= htonl(defcmap[i]);
st->cmap[i].cooked = st->boxcmap[i].cooked = st->textcmap[i].cooked
= specks_cookcment( st, st->cmap[i].raw );
/* Ensure that textcmap[0] is white by default */
st->textcmap[0].raw = PACKRGBA( 170, 170, 170, 0 );
st->textcmap[0].cooked = specks_cookcment( st, st->textcmap[0].raw );
st->sizedby = 0;
st->coloredby = 1;
st->sizeseq = st->colorseq = st->threshseq = 0;
st->trueradius = 0;
st->sdbvars = shmstrdup( "mcr" );
st->ntimes = 0;
st->ndata = 0;
st->curtime = 0;
st->curdata = 0;
st->datatime = 0;
st->usertrange = 0;
st->utmin = -HUGE;
st->utmax = HUGE;
st->utwrap = 0.1;
st->sl = NULL;
st->boxes = NULL;
st->boxlevels = 0;
st->boxlinewidth = 0.75;
st->clk = NewN(SClock, 1);
clock_init(st->clk);
clock_set_running(st->clk, 1);
memset(st->anima, 0, sizeof(st->anima));
memset(st->annot, 0, sizeof(st->annot));
memset(st->datafile, 0, sizeof(st->datafile));
memset(st->fname, 0, sizeof(st->fname));
#if CAVE
shmrecycler( specks_purge, st );
#endif
for(i = 1; i < argc; i++)
specks_read( &st, argv[i] );
#if CAVEMENU
menu_preinit();
pmenu = menu_create( .05, .95 );
menu_setfont( pmenu, font_small );
ment.annot = menu_addentry( pmenu, " ", NULL, NULL );
menu_addentry( pmenu, " ", NULL, NULL );
menuopt = getenv("PARTIMENU");
if(menuopt == NULL) {
menuopt = "label";
st->hidemenu = 1;
}
if(strstr(menuopt, "survey")) { /* SC99DEMO star-formation survey */
for(i = 0; i < 3; i++) {
struct boxleveler *tb = NewN( struct boxleveler, 1 );
tb->st = st;
tb->level = i;
ment.tknob[i] = menu_addknob( pmenu, NULL, set_tknob, 0, 0,4, tb );
}
}
menu_addentry( pmenu, " ", NULL, NULL );
ment.psize = menu_addknob( pmenu, NULL, set_psize, st->psize, 0.1,20, st );
ment.slum = menu_addknob( pmenu, NULL, set_slum,
st->vdesc[st->curdata][st->sizedby].lum, .1, 10, st );
ment.lumvar = menu_addtoggle( pmenu, NULL, set_lumvar, st->sizedby, MAXVAL, st );
ment.colorvar = menu_addtoggle( pmenu, NULL, set_colorvar, st->coloredby, MAXVAL, st );
ment.seedata = menu_addtoggle( pmenu, NULL, set_seedata, st->curdata, 2, st );
if(strstr(menuopt, "label"))
ment.label = menu_addtoggle( pmenu, NULL, set_label, st->usetext, 2, st );
if(strstr(menuopt, "poly"))
ment.poly = menu_addtoggle( pmenu, NULL, set_poly, st->usepoly, 2, st );
menu_addentry( pmenu, " ", NULL, NULL ); /* spacer */
#ifndef STATIC_SPECKS
ment.fspeed = menu_addknob( pmenu, NULL, set_fspeed, clock_speed(st->clk), 0, 5, st );
ment.speed = menu_addknob( pmenu, NULL, set_speed, clock_speed(st->clk), .5, 5, st );
ment.step = menu_addknob( pmenu, NULL, set_step, clock_time(st->clk), 0, 10, st );
ment.fwd = menu_addtoggle( pmenu, NULL, set_fwd, clock_fwd(st->clk), 2, st );
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#endif
#ifndef NO_WHERE
ment.where[0] = menu_addentry( pmenu, "", NULL, NULL );
ment.where[1] = menu_addentry( pmenu, "", NULL, NULL );
ment.where[2] = menu_addentry( pmenu, "", NULL, NULL );
ment.where[3] = menu_addentry( pmenu, "", NULL, NULL );
#endif
ment.every = menu_addknob( pmenu, NULL, set_every, st->subsample, 1, 10, st );
menu_addentry( pmenu, " ", NULL, NULL );
ment.setscale = menu_addknob( pmenu, NULL, set_scale, 0., -4., 1., st );
if(strstr(menuopt, "viewall"))
ment.viewall = menu_addtoggle( pmenu, NULL, set_viewall, 0, 2, st );
menu_addentry( pmenu, " ", NULL, NULL );
ment.box = menu_addtoggle( pmenu, NULL, set_allboxes, st->useboxes, 3, st );
menu_addentry( pmenu, " ", NULL, NULL );
{
struct boxleveler *blev = NewN( struct boxleveler, COUNT(ment.boxlevel) );
for(i = 0; i < COUNT(ment.boxlevel); i++) {
blev[i].st = st;
blev[i].level = i;
ment.boxlevel[i] = menu_addtoggle( pmenu, NULL, set_boxlevel, 1, 2,
&blev[i] );
}
}
ment.menu = menu_addtoggle( pmenu, "<Menu>", set_menu, 0, 2, st );
menu_addentry( pmenu, " ", NULL, NULL );
stubmenu = menu_create( .05, .15 );
menu_addtoggle( stubmenu, "<Menu>", set_menu, 0, 2, st );
menu_sethidden( stubmenu, 1 );
#endif /*NOCAVE*/
return st;
}
#if CAVEMENU
void specks_refresh_menu(struct stuff *st)
{
int i;
#if MENU_IN_PPR
menu_check( pmenu, pmenu->cavewall );
menu_check( stubmenu, stubmenu->cavewall );
#endif
menu_sethidden( pmenu, st->hidemenu || empty );
menu_sethidden( stubmenu, st->hidemenu<=0 || empty );
if(st->vdcmd[0] != '\0') {
VIDI_queue_commandstr( st->vdcmd );
st->vdcmd[0] = '\0';
}
set_psize( st->psize, ment.psize, st );
set_lumvar( st->sizedby, ment.lumvar, st );
set_colorvar( st->coloredby, ment.colorvar, st );
set_slum( st->vdesc[st->curdata][st->sizedby].lum, ment.slum, st );
set_every( st->subsample, ment.every, st );
set_scale( ment.setscale->val, ment.setscale, st );
if(ment.label) set_label( st->usetext, ment.label, st );
if(ment.poly) set_poly( st->usepoly, ment.poly, st );
if(ment.annot)
menu_settitle( ment.annot, st->annotation ? st->annotation : " " );
if(st->ntimes > 1) {
menu_setknobrange( ment.step, 0, st->ntimes-1 );
set_fwd( st->timefwd, ment.fwd, st );
set_step( st->time0, ment.step, st );
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} else {
menu_settitle( ment.fwd, "" );
menu_settitle( ment.step, "" );
menu_settitle( ment.speed, "" );
if(ment.viewall)
menu_settitle( ment.viewall, "" ); /* no need to "view peak", right? */
}
if(st->ndata > 1) {
set_seedata( st->curdata, ment.seedata, st );
} else {
menu_settitle( ment.seedata, "" );
}
if(st->boxlevels > 0) {
set_allboxes( st->useboxes, ment.box, st );
} else {
menu_settitle( ment.box, "" );
}
if(ment.tknob[0]) /* if SC99DEMO, i.e. if PARTIMENU includes "survey" */
for(i = 0; i < 3; i++)
set_tknob( ment.tknob[i]->val, ment.tknob[i], ment.tknob[i]->data );
#ifndef NO_WHERE
for(i = 0; i < COUNT(ment.where) && ment.where[i] != NULL; i++)
set_where( i, ment.where[i], st );
#endif
/* Publicize our menu location so other apps -- Matt's vtk AMR code --
* can avoid interacting if user's wand points there.
*/
parti_menuwall = pmenu->cavewall;
parti_menubox[0] = pmenu->x0 * pmenu->wallxpix;
parti_menubox[1] = ((pmenu->y0 < pmenu->y1) ? pmenu->y0 : pmenu->y1)
* pmenu->wallypix;
parti_menubox[2] = pmenu->x1 * pmenu->wallxpix;
parti_menubox[3] = ((pmenu->y0 > pmenu->y1) ? pmenu->y0 : pmenu->y1)
* pmenu->wallypix;
}
void specks_evoke_menu( struct stuff *st ) {
menu_evoke( pmenu ); /* evoke any callbacks */
}
#endif /*CAVEMENU*/
void specks_rethresh( struct stuff *st, struct specklist *sl, int by )
{
struct valdesc *vd;
int i;
int curdata = st->curdata;
int nel = sl->nspecks;
float cmin, cmax, normal;
int ncmap = st->ncmap;
int index;
int min, max;
float threshmin = st->thresh[0], threshmax = st->thresh[1];
struct speck *p = sl->specks;
sl->threshseq = st->threshseq;
if(sl->text != NULL) /* specklists with labels shouldn't be thresholded */
return;
if(curdata >= st->ndata)
curdata = 0;
min = (SMALLSPECKSIZE(by)>=sl->bytesperspeck) ? 0 : st->usethresh&P_THRESHMIN;
max = (SMALLSPECKSIZE(by)>=sl->bytesperspeck) ? 0 : st->usethresh&P_THRESHMAX;
for(i = 0, p = sl->specks; i < sl->nspecks; i++, p = NextSpeck( p, sl, 1 )) {
p->rgba = (min&&p->val[by]<threshmin) || (max&&p->val[by]>threshmax)
? p->rgba | THRESHBIT : p->rgba & ~THRESHBIT;
}
}
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int specks_cookcment( struct stuff *st, int cment )
{
unsigned char crgba[4];
memcpy(crgba, &cment, 4); /* XXX 64-bit bug? */
return (cment & ~RGBWHITE) |
PACKRGBA(
st->rgbmap[0][crgba[0]],
st->rgbmap[1][crgba[1]],
st->rgbmap[2][crgba[2]],
0 );
}
void specks_rgbremap( struct stuff *st )
{
int i, k;
for(i = 0; i < 256; i++) {
float t = (float)i / 256;
float v = 255.99f * pow(t, 1/st->rgbgamma[0]);
k = (int) (st->rgbright[0] * v);
st->rgbmap[0][i] = (k <= 0) ? 0 : (k > 255) ? 255 : k;
if(st->rgbgamma[0] != st->rgbgamma[1])
v = 255.99f * pow(t, 1/st->rgbgamma[1]);
k = (int) (st->rgbright[1] * v);
st->rgbmap[1][i] = (k <= 0) ? 0 : (k > 255) ? 255 : k;
if(st->rgbgamma[1] != st->rgbgamma[2])
v = 255.99f * pow(t, 1/st->rgbgamma[2]);
k = (int) (st->rgbright[2] * v);
st->rgbmap[2][i] = (k <= 0) ? 0 : (k > 255) ? 255 : k;
}
/* remake colormap too */
for(i = 0; i < st->ncmap; i++)
st->cmap[i].cooked = specks_cookcment( st, st->cmap[i].raw );
void specks_recolor( struct stuff *st, struct specklist *sl, int by )
{
struct valdesc *vd;
int i;
int curdata = st->curdata;
int nel = sl->nspecks;
struct speck *sp = sl->specks;
float cmin, cmax, normal;
int ncmap = st->ncmap;
int index;
int rgb565;
sl->coloredby = by;
sl->colorseq = st->colorseq;
if(sl->text != NULL) /* specklists with labels shouldn't be recolored */
return;
if(curdata >= st->ndata)
curdata = 0;
if(by == CONSTVAL) {
/* Hack -- color by given RGB value */
char crgba[4];
r = (vd->cmin<=0) ? 0 : vd->cmin>=1 ? 255 : (int)(255.99f * vd->cmin);
g = (vd->cmax<=0) ? 0 : vd->cmax>=1 ? 255 : (int)(255.99f * vd->cmax);
b = (vd->mean<=0) ? 0 : vd->mean>=1 ? 255 : (int)(255.99f * vd->mean);
crgba[0] = st->rgbmap[0][r];
crgba[1] = st->rgbmap[0][g];
crgba[2] = st->rgbmap[0][b];
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for(i = 0; i < nel; i++, sp = NextSpeck(sp, sl, 1)) {
sp->rgba = rgba | (sp->rgba & THRESHBIT);
}
return;
}
if(by >= MAXVAL || by < 0 || SMALLSPECKSIZE(by) > sl->bytesperspeck)
by = 0;
vd = &st->vdesc[curdata][by];
cmin = vd->cmin, cmax = vd->cmax;
if(cmin == cmax && cmin == 0 || (vd->call && !vd->cexact)) {
vd->cmin = cmin = vd->min;
vd->cmax = cmax = vd->max;
}
normal = (cmax != cmin && ncmap>2) ? (ncmap-2)/(cmax - cmin) : 0;
rgb565 = !strcmp(vd->name, "rgb565") || !strcmp(vd->name, "colors565");
/* cexact field means:
* 0 (default): scale data range to cmap index 1..ncmap-2;
* use 0 and ncmap-1 for low- and high- out-of-range values.
*
* 1 ("exact"): use data value as literal colormap index, 0..ncmap-1.
*/
for(i = 0; i < nel; i++, sp = NextSpeck(sp, sl, 1)) {
if(rgb565) {
index = sp->val[by];
sp->rgba = PACKRGBA(
rgbmap[0][(index&0xF800)>>(11-(8-5))],
rgbmap[1][(index&0x07E0)>>(5-(8-6))],
rgbmap[2][(index&0x1F)<<(8-5)],
0 )
| (sp->rgba & THRESHBIT);
} else {
index = vd->cexact ? sp->val[by] + cmin
: (sp->val[by] - cmin) * normal + 1;
if(index < 0) index = 0;
else if(index >= ncmap) index = ncmap-1;
sp->rgba = st->cmap[index].cooked | (sp->rgba & THRESHBIT);
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}
}
}
void specks_resize( struct stuff *st, struct specklist *sl, int by )
{
int i;
int nel = sl->nspecks;
struct speck *sp = sl->specks;
int curdata = st->curdata;
struct valdesc *vd;
float lmin, lmax, normal;
sl->sizedby = by;
sl->sizeseq = st->sizeseq;
if(sl->text != NULL) /* specklists with labels shouldn't be resized */
return;
if(curdata < 0 || curdata >= st->ndata)
curdata = 0;
if(by == CONSTVAL) {
vd = &st->vdesc[curdata][CONSTVAL];
for(i = 0; i < nel; i++, sp = NextSpeck(sp, sl, 1))
sp->size = vd->lmin;
return;
}
if(by < 0 || by >= MAXVAL)
by = 0;
vd = &st->vdesc[curdata][by];
lmin = vd->lmin, lmax = vd->lmax;
if(lmin == lmax && lmin == 0 || vd->lall) {
vd->lmin = lmin = vd->min;
vd->lmax = lmax = vd->max;
}
if(lmax == lmin)
normal = 1;
else
normal = 1 / (lmax - lmin);
for(i = 0; i < nel; i++, sp = NextSpeck(sp, sl, 1))
sp->size = (sp->val[by] - lmin) * normal;
}
void specks_datawait(struct stuff *st) {
#if USE_IEEEIO
while(st->fetching && st->fetchpid > 0
&& st->fetchtime == st->curtime
&& st->fetchdata == st->curdata)
usleep(50000);
#endif
}
#ifdef USE_IEEEIO
void specks_ieee_server( void *vst ) {
struct stuff *st = (struct stuff *)vst;
struct specklist *sl;
prctl(PR_TERMCHILD); /* Die when parent dies */
/* Await a request */
for(;;) {
time_t then;
while(st->fetching <= 0)
sginap(5);
then = time(NULL);
sl = specks_ieee_read_timestep( st, st->subsample,
st->fetchdata, st->fetchtime );
if(then + 5 < time(NULL))
msg("... got %x (%d particles) from %s", sl, specks_count(sl),
st->fname[st->fetchdata][st->fetchtime]);
if(st->curtime == st->fetchtime && st->curdata == st->fetchdata
&& sl != NULL) {
st->sl = sl;
parti_redraw();
}
st->fetching = 0;
}
}
#endif /*USE_IEEEIO*/
/* ignore it! */
/* or maybe use fspeed to specify finite clock resolution */
void specks_shift_ghosts( struct stuff *st ) {
int i;
struct specklist **slp =
specks_timespecksptr( st, 0,
st->nghosts > 0 ? st->nghosts-1 : 0 );
if(slp && *slp)
specks_discard( st, slp );
for(i = st->nghosts; --i > 0; ) {
slp = specks_timespecksptr( st, 0, st->nghosts );
*slp = slp[-1];
}
*specks_timespecksptr( st, 0, 0 ) = NULL;
}
{
struct specklist *sl = st->sl;
struct specklist **slp;
if(st->usertrange) {
if(tmin < st->utmin) tmin = st->utmin;
if(tmax > st->utmax) tmax = st->utmax;
}
clock_set_range( st->clk, tmin, tmax, st->utwrap );
/* Possibly retain old snapshots -- up to st->ntimes of them! */
/* In any case, discard previous array */
specks_shift_ghosts( st );
/* Hack for kira-parti dynamic data */
if(sl) {
if(st->coloredby >= 0 && st->coloredby < CONSTVAL)
st->colorseq++;
if(st->sizedby >= 0 && st->coloredby < CONSTVAL)
st->sizeseq++;
if(st->threshvar >= 0)
st->threshseq++;
}
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if(timestep < 0) timestep = 0;
slp = specks_timespecksptr( st, st->curdata, timestep );
if(*slp != NULL && (*slp)->subsampled > st->subsample) {
specks_discard( st, slp );
}
sl = *slp;
#ifdef USE_IEEEIO
if(sl == NULL && (st->fetching == 0 || st->datasync)
&& st->curdata>=0 && st->curdata<st->ndata
&& st->datafile[st->curdata] != NULL
&& timestep>=0 && timestep<st->ntimes
&& st->datafile[st->curdata][timestep] != NULL) {
st->fetchdata = st->curdata;
st->fetchtime = timestep;
if(getenv("NO_SPROC") || st->datasync) {
sl = specks_ieee_read_timestep( st, st->subsample,
st->fetchdata, st->fetchtime );
msg("Got %x (%d particles) from %s (d%d t%d)\n",
sl, specks_count(sl), st->fname[st->fetchdata][st->fetchtime],
st->fetchdata, st->fetchtime);
} else {
st->fetching = 1;
if(st->fetchpid <= 0) {
st->fetchpid = sproc( specks_ieee_server, PR_SADDR|PR_SFDS, st );
if(st->fetchpid < 0)
perror("sproc");
}
}
}
if(st->fetchpid > 0) {
if(kill(st->fetchpid, 0) < 0) {
perror("specks server vanished: kill -0");
st->fetching = 0;
st->fetchpid = 0;
}
}
#endif /*USE_IEEEIO*/
if(sl == NULL && !(st->boxtimes>timestep && st->boxes[timestep]!=NULL))
return;
st->sl = sl; /* st->sl <= anima[][] */
st->curtime = timestep;
#if !CAVEMENU
st->frame_time = st->curtime; /* if non-CAVE, we have no frame-function */
#endif
specks_set_current_annotation( st, st->annot[st->curdata][st->curtime]
? st->annot[st->curdata][st->curtime]->text : NULL );
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}
void specks_set_current_annotation( struct stuff *st, char *annotation )
{
st->annotation = annotation;
#ifdef CAVEMENU
if(ment.annot)
menu_settitle( ment.annot, st->annotation ? st->annotation : "" );
#endif
}
void specks_add_annotation( struct stuff *st, char *annotation, int timestep )
{
struct specklist *sl, **slp;
int curtime = (timestep < 0) ? st->curtime : timestep;
if(annotation == NULL) annotation = "";
specks_timespecksptr( st, st->curdata, curtime );
if(curtime >= st->ntimes) curtime = 0;
slp = &st->annot[st->curdata][curtime];
if((sl = *slp) == NULL) {
sl = *slp = NewN( struct specklist, 1 );
memset(*slp, 0, sizeof(**slp));
} else if(sl->text) {
Free(sl->text);
}
sl->text = NewN( char, strlen(annotation)+1 );
strcpy( sl->text, annotation );
}
void starswap(db_star *st) {
int i, *wp;
/* byte-swap x,y,z, dx,dy,dz, magnitude,radius,opacity fields (32-bit float),
* num (32-bit int),
* color (16-bit short).
* group and type fields shouldn't need swapping,
* assuming the compiler packs bytes into a word in increasing
* address order. Seems safe.
*/
for(i = 0, wp = (int *)st; i < 10; i++)
wp[i] = htonl(wp[i]);
st->color = htons(st->color);
}
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void specks_read_sdb( struct stuff *st, char *sdbfname, int timestep )
{
FILE *inf = fopen(sdbfname, "r");
long flen;
int nspecks, i;
float min[MAXVAL], max[MAXVAL], sum[MAXVAL];
struct specklist *sl, **slp;
register struct speck *sp;
int dfltvars = (strcmp(st->sdbvars, "mcr") == 0);
int nvars = strlen(st->sdbvars);
int needswap = (htonl(1) != 1);
if(inf == NULL) {
msg("sdb: %s: cannot open: %s", sdbfname, strerror(errno));
return;
}
/* Just measure file size */
errno = 0;
fseek(inf, 0, SEEK_END);
flen = ftell(inf);
if(flen == -1 || flen == 0) {
msg("sdb: %s: can't measure length of file: %s", sdbfname, strerror(errno));
return;
}
nspecks = (flen / sizeof(db_star));
if(nspecks <= 0) {
msg("sdb: %s: ignoring empty sdb file", sdbfname);
return;
}
sl = NewN(struct specklist, 1);
memset(sl, 0, sizeof(*sl));
sl->bytesperspeck = SMALLSPECKSIZE( nvars );
if(nvars > MAXVAL) nvars = MAXVAL;
sl->scaledby = st->spacescale;
sp = NewNSpeck(sl, nspecks);
sl->specks = sp;
fseek(inf, 0, SEEK_SET);
for(i = 0; i < nspecks; i++, sp = NextSpeck(sp, sl, 1)) {
db_star star;
char *cp;
int k;
float *vp;
if(fread(&star, sizeof(star), 1, inf) <= 0)
break;
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starswap(&star);
#endif
sp->p.x[0] = star.x * sl->scaledby;
sp->p.x[1] = star.y * sl->scaledby;
sp->p.x[2] = star.z * sl->scaledby;
if(dfltvars) {
sp->val[0] = exp((-18-star.magnitude)*.921/*log(100)/5*/);
sp->val[1] = star.color;
sp->val[2] = star.radius;
} else {
for(vp = &sp->val[0], cp = st->sdbvars; *cp; cp++, vp++) {
switch(*cp) {
case 'm': *vp = exp((-18-star.magnitude)*.921/*log(100)/5*/); break;
case 'M': *vp = star.magnitude; break;
case 'c': *vp = star.color; break;
case 'r': *vp = star.radius; break;
case 'o': *vp = star.opacity; break;
case 'g': *vp = star.group; break;
case 't': *vp = star.type; break;
case 'x': *vp = star.dx; break;
case 'y': *vp = star.dy; break;
case 'z': *vp = star.dz; break;
case 'S': *vp = sqrt(star.dx*star.dx + star.dy*star.dy + star.dz*star.dz); break;
case 'n': *vp = star.num; break;
default: *vp = 1; break;
}
}
}
if(i == 0) {
for(k = 0; k < nvars; k++)
sum[k] = min[k] = max[k] = sp->val[k];
} else {
for(k = 0; k < nvars; k++) {
if(min[k] > sp->val[k]) min[k] = sp->val[k];
else if(max[k] < sp->val[k]) max[k] = sp->val[k];
sum[k] += sp->val[k];
}
}
}
sl->nspecks = i;
sl->sizedby = 0;
sl->coloredby = 1;
/* Update statistics */
if(sl->nspecks > 0) {
struct valdesc *vdp = &st->vdesc[st->curdata][0];
for(i = 0; i < nvars; i++, vdp++) {
if(vdp->min > min[i]) vdp->min = min[i];
if(vdp->max < max[i]) vdp->max = max[i];
vdp->nsamples += sl->nspecks;
vdp->sum += sum[i];
vdp->mean = vdp->sum / vdp->nsamples;
if(vdp->name[0] == '\0') {
char *name = "unk";
switch(st->sdbvars[i]) {
case 'm': name = "lumsdb"; break;
case 'M': name = "magsdb"; break;
case 'c': name = vdp->max > 16384 ? "rgb565" : "colorsdb";
vdp->cexact = 1;
break;
case 'r': name = "radius"; break;
case 'o': name = "opacity"; break;
case 'g': name = "group"; break;
case 't': name = "type"; break;
case 'x': name = "dx"; break;
case 'y': name = "dy"; break;
case 'z': name = "dz"; break;
case 'S': name = "speed"; break;
case 'n': name = "number"; break;
}
strcpy(vdp->name, name);
}
}
specks_recolor( st, sl, st->coloredby );
specks_resize( st, sl, st->sizedby );
}
/* Add to running list */
slp = specks_timespecksptr( st, st->curdata, timestep );
sl->next = *slp;
*slp = sl;
fclose(inf);
}
}
int specks_get_datastep( struct stuff *st )
{
return st->curtime;
}
double specks_get_realtime( struct stuff *st )
{
return st->currealtime;
}
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void set_interest_point( Point *p )
{
#if CAVEMENU
char cmd[80];
sprintf(cmd, "interest %g %g %g", p->x[0], p->x[1], p->x[2]);
VIDI_queue_commandstr( cmd );
#else
parti_center( p );
#endif
}
/* Only specks_timespecksptr() extends the spans of time or datasets */
struct specklist **
specks_timespecksptr( struct stuff *st, int dataset, int timestep )
{
int d, needroom;
struct specklist **na, **nan;
void **ndf;
char **nfn;
if((timestep >= st->ntimes || dataset >= st->ndata)) {
needroom = st->timeroom;
if(timestep >= st->timeroom)
needroom = 2*timestep + 15;
for(d = 0; d < st->ndata || (dataset < MAXFILES && d <= dataset); d++) {
if(needroom == st->timeroom && d < st->ndata)
continue;
na = NewN( struct specklist *, needroom );
nan = NewN( struct specklist *, needroom );
ndf = NewN( void *, needroom );
nfn = NewN( char *, needroom );
memset(na, 0, needroom * sizeof(*na));
memset(nan, 0, needroom * sizeof(*nan));
memset(ndf, 0, needroom * sizeof(*ndf));
memset(nfn, 0, needroom * sizeof(*nfn));
if(d < st->ndata && st->anima[d])
memcpy( na, st->anima[d], st->ntimes * sizeof(*na) );
if(d < st->ndata && st->annot[d])
memcpy( nan, st->annot[d], st->ntimes * sizeof(*nan) );
if(d < st->ndata && st->datafile[d])
memcpy( ndf, st->datafile[d], st->ntimes * sizeof(*ndf) );
if(d < st->ndata && st->fname[d])
memcpy( nfn, st->fname[d], st->ntimes * sizeof(*nfn) );
/* Don't free old pointers, just in case they're in use. */
st->anima[d] = na;
st->annot[d] = nan;
st->datafile[d] = ndf;
st->fname[d] = nfn;
}
st->timeroom = needroom;
if(timestep >= st->ntimes)
st->ntimes = timestep + 1;
if(dataset >= st->ndata && dataset < MAXFILES)
st->ndata = dataset + 1;
}
return (timestep >= 0 && timestep < st->ntimes &&
dataset >= 0 && dataset < st->ndata)
? &st->anima[dataset][timestep] : NULL;
}
struct specklist *
specks_timespecks( struct stuff *st, int dataset, int timestep )
{
return (timestep >= 0 && timestep < st->ntimes &&
dataset >= 0 && dataset < st->ndata)
? st->anima[dataset][timestep] : NULL;
}
void specks_reupdate( struct stuff *st, struct specklist *sl )
{
struct specklist *tsl;
if(sl != NULL && sl->threshseq != st->threshseq) {
for(tsl = sl; tsl != NULL; tsl = tsl->next)
specks_rethresh( st, tsl, st->threshvar );
}
if(sl != NULL && sl->colorseq != st->colorseq) {
for(tsl = sl; tsl != NULL; tsl = tsl->next)
specks_recolor( st, tsl, st->coloredby );
}
if(sl != NULL && sl->sizeseq != st->sizeseq) {
for(tsl = sl; tsl != NULL; tsl = tsl->next)
specks_resize( st, tsl, st->sizedby );
}
}
clock_set_time( st->clk, newtime );
specks_set_timestep( st );
if(st->sl == NULL && st->ntimes > 1 && st->clk->parent == NULL) {
/* Skip blank time-slots -- keep incrementing until either:
* - we find a time-slot that has (or could have) some data, or
* - we've run through all time-steps (avoid infinite loops!).
*/
int nudges, ts;
for(nudges = 0; nudges < st->ntimes; nudges++) {
ts = (st->curtime + nudges) % st->ntimes;
if( specks_timespecks( st, st->curdata, ts ) != NULL ||
(st->datafile[st->curdata] != NULL &&
st->datafile[st->curdata][ts] != NULL) )
break;
}
clock_set_time( st->clk, ts );
specks_set_timestep( st );
}
/* st->playnext = now + (st->fspeed != 0 ? 1/st->fspeed : 0); */
if(sl != NULL && memcmp(&sl->interest, &lastinterest, sizeof(Point))
&& (sl->interest.x[0]!=0 || sl->interest.x[1]!=0
|| sl->interest.x[2]!=0)) {
char str[128];
float scale = .004;
lastinterest = sl->interest;
set_interest_point( &lastinterest );
sprintf(str, "\002setjump peak %g %g %g 0 0 0 %g",
lastinterest.x[0], lastinterest.x[1]-scale*5, lastinterest.x[2] + scale*5,
scale);
VIDI_queue_commandstr( str );
}
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#if CAVE
specks_refresh_menu( st );
#endif
}
static int specks_freenow( struct specklist **slp, int maxage )
{
struct specklist *sl, **sprev;
int any = 0;
for(sprev = slp; (sl = *sprev) != NULL && sl->used <= maxage; ) {
if(sl->used <= maxage) {
*sprev = sl->freelink;
if(sl->specks != NULL)
Free(sl->specks);
Free(sl);
any++;
} else {
/* too recent - might still be in use */
sprev = &sl->freelink;
}
}
return any;
}
void specks_discard( struct stuff *st, struct specklist **slp )
{
struct specklist *sl, *slnext;
for(sl = *slp; sl != NULL; sl = slnext) {
slnext = sl->next;
sl->freelink = st->scrap;
st->scrap = sl;
}
*slp = NULL;
}
int specks_purge( void *vst, int nbytes, void *aarena )
{
struct stuff *st = (struct stuff *)vst;
int oldused = st->used;
int oldtime = -1, oldds = -1;
int t, ds;
struct specklist *sl;
#ifdef sgi
static int first = 1;
struct mallinfo mi;
mi = amallinfo( aarena );
if(first) {
first = 0;
msg("Purging %dKbyte shmem arena (currently %dK used in %d blks, %dK free)\n",
mi.arena>>10, mi.uordblks>>10, mi.ordblks, mi.fordblks>>10);
}
#endif
/* Free any known scrap first */
#define OLD_ENOUGH 4
if(specks_freenow( &st->scrap, st->used - OLD_ENOUGH ) > 0)
return 1;
for(t = 0; t < st->ntimes; t++) {
if(t == st->curtime) continue;
for(ds = 0; ds < st->ndata; ds++) {
sl = st->anima[ds][t];
if(sl != NULL && sl != st->sl && sl->used < oldused) {
oldused = st->used;
oldtime = t;
oldds = ds;
}
}
}
if(oldtime >= 0) {
specks_discard( st, &st->anima[oldds][oldtime] );
specks_freenow( &st->scrap, oldtime );
return 1; /* We freed something, so try allocating again */
} else {
msg("Ran out of shmem, couldn't find anything more to purge\n");
#ifdef sgi
msg("%dKbyte shmem arena (currently %dK used in %d blks, %dK free)\n",
mi.arena>>10, mi.uordblks>>10, mi.ordblks, mi.fordblks>>10);
#endif
return 0; /* No progress made -- give up */
}
}
/*
* Just stash these values in our frame function so they won't change visibly
* during a frame. Each frame function will do this; we'll just hope that
* they don't change as the various cave-wall processes start.
*/
void specks_current_frame( struct stuff *st, struct specklist *sl )
{
st->frame_sl = sl;
st->frame_time = st->curtime;
st->frame_data = st->curdata;
st->frame_annotation = st->annotation;
specks_reupdate( st, sl );
}
#define MAXXYFAN 16
extern void specks_draw_boxes( struct stuff *st, struct AMRbox *boxes, int levelmask, Matrix Ttext, int oriented );
extern void specks_draw_mesh( struct stuff *st, struct mesh *m, int *texturing );
extern void specks_draw_ellipsoid( struct stuff *st, struct ellipsoid *e );
struct cpoint {
int rgba;
Point p;
};
void dumpcpoints( struct cpoint *cp, int n )
{
while(--n >= 0) {
glColor4ubv( (GLubyte *)&cp->rgba );
glVertex3fv( &cp->p.x[0] );
cp++;
}
}
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static Point depth_fwd;
static float depth_d;
struct order {
float z;
struct speck *sp;
struct specklist *sl;
};
static int depthcmp( const void *a, const void *b )
{
return ((struct order *)a)->z < ((struct order *)b)->z ? 1
: ((struct order *)a)->z > ((struct order *)b)->z ? -1 : 0;
}
static int additive_blend;
void sortedpolys( struct stuff *st, struct specklist *slhead, Matrix *Tc2wp, float radperpix, float polysize )
{
struct speck *sp, *sbase;
struct order *op, *obase;
int i, k, total, skip;
struct specklist *sl;
int usethresh = st->usethresh&P_USETHRESH ? THRESHBIT : 0;
int bps = 0;
int prevrgba = -1;
int usearea = st->polyarea;
int sizevar = st->polysizevar;
int polyorivar = st->polyorivar0;
int texturevar = st->texturevar;
int txno;
int texturing = -1;
float s;
float polyminrad = st->polymin * radperpix;
float polymaxrad = st->polymax * radperpix;
float mins2d = polyminrad * polyminrad;
int rgba;
int alpha = st->alpha * 255;
int nfan = st->npolygon<MAXXYFAN ? st->npolygon : MAXXYFAN;
float xyfan[MAXXYFAN][2];
Point sfan[MAXXYFAN], pfan[MAXXYFAN];
Matrix Tc2w = *Tc2wp;
float scl = vlength( (Point *)&Tc2w.m[0*4+0] );
float fanscale;
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Texture *wanttx;
int additive = additive_blend;
int wantblend = additive;
int useclip = (st->clipbox.level > 0);
Point clipp0 = st->clipbox.p0;
Point clipp1 = st->clipbox.p1;
for(total = 0, sl = slhead; sl != NULL; sl = sl->next) {
if(sl->text != NULL || sl->nspecks == 0 || sl->special != SPECKS)
continue;
skip = st->subsample;
if(sl->subsampled != 0) /* if already subsampled */
skip /= sl->subsampled;
if(skip <= 0) skip = 1;
if(bps < sl->bytesperspeck) bps = sl->bytesperspeck;
if(usethresh) {
for(i=sl->nspecks, sp=sl->specks; i>0; i-=skip, sp=NextSpeck(sp,sl,skip)) {
if((usethresh & sp->rgba) == 0)
total++;
}
} else {
total += sl->nspecks / skip;
}
}
obase = op = (struct order *)malloc( (total+1) * sizeof(struct order) );
for(sl = slhead; sl != NULL; sl = sl->next) {
if(sl->text != NULL || sl->nspecks == 0 || sl->special != SPECKS)
continue;
skip = st->subsample;
if(sl->subsampled != 0) /* if already subsampled */
skip /= sl->subsampled;
if(skip <= 0) skip = 1;
for(i=sl->nspecks, sp=sl->specks; i > 0; i-=skip, sp=NextSpeck(sp,sl,skip)) {
float dist;
if(usethresh & sp->rgba)
continue;
dist = VDOT( &sp->p, &depth_fwd ) + depth_d;
if(dist < 0)
continue;
if(useclip &&
(sp->p.x[0] < clipp0.x[0] ||
sp->p.x[0] > clipp1.x[0] ||
sp->p.x[1] < clipp0.x[1] ||
sp->p.x[1] > clipp1.x[1] ||
sp->p.x[2] < clipp0.x[2] ||
sp->p.x[2] > clipp1.x[2]))
continue;
op->z = dist;
op->sp = sp;
op->sl = sl;
op++;
}
}
total = op - obase;
qsort( obase, total, sizeof(*obase), depthcmp );
prevrgba = 0;
/* Build prototype fan -- unit disk in screen plane */
/* Scale the fan big enough that the unit disk is inscribed in our polygon */
fanscale = 1 / (scl * cos(M_PI/nfan));
float theta = 2*M_PI*(i+0.5f)/nfan;
vcomb( &sfan[i], xyfan[i][0] * fanscale, (Point *)&Tc2w.m[0*4+0],
xyfan[i][1] * fanscale, (Point *)&Tc2w.m[1*4+0] );
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}
if(st->usetextures == 0 || SMALLSPECKSIZE(texturevar) > bps)
texturevar = -1;
if(SMALLSPECKSIZE(polyorivar) > bps)
polyorivar = -1;
for(i = 0, op = obase; i < total; i++, op++) {
float dist, size;
sp = op->sp;
dist = op->z;
size = sp->val[sizevar] * polysize;
if(usearea) {
if(size < dist * dist * mins2d)
continue;
size = sqrtf(size);
} else {
if(size < dist * polyminrad)
continue;
}
if(size > dist * polymaxrad)
size = dist * polymaxrad;
rgba = sp->rgba & ~THRESHBIT;
if(rgba != prevrgba) {
prevrgba = rgba;
rgba = RGBALPHA( prevrgba, alpha );
glColor4ubv( (GLubyte *)&rgba );
}
if(texturevar >= 0 &&
(txno = sp->val[texturevar]) >= 0 &&
txno < st->ntextures &&
(wanttx = st->textures[txno]) != NULL) {
txbind( wanttx, &texturing );
wantblend = (wanttx->flags & TXF_ADD) ? 1 : additive_blend;
} else if(texturing) {
glDisable( GL_TEXTURE_2D );
texturing = 0;
}
if(wantblend != additive) {
additive = wantblend;
glBlendFunc( GL_SRC_ALPHA, additive ? GL_ONE : GL_ONE_MINUS_SRC_ALPHA );
}
if(polyorivar >= 0 && sp->val[polyorivar] < 9) {
float *xv = &sp->val[polyorivar];
float *yv = &sp->val[polyorivar+3];
glBegin( GL_TRIANGLE_FAN );
if(texturing) {
for(k = 0; k < nfan; k++) {
glTexCoord2fv( &xyfan[k][0] );
glVertex3f(
sp->p.x[0] + size*(xyfan[k][0]*xv[0] + xyfan[k][1]*yv[0]),
sp->p.x[1] + size*(xyfan[k][0]*xv[1] + xyfan[k][1]*yv[1]),
sp->p.x[2] + size*(xyfan[k][0]*xv[2] + xyfan[k][1]*yv[2]));
}
} else {
for(k = 0; k < nfan; k++) {
glVertex3f(
sp->p.x[0] + size*(xyfan[k][0]*xv[0] + xyfan[k][1]*yv[0]),
sp->p.x[1] + size*(xyfan[k][0]*xv[1] + xyfan[k][1]*yv[1]),
sp->p.x[2] + size*(xyfan[k][0]*xv[2] + xyfan[k][1]*yv[2]));
}
}
glEnd();
} else {
glBegin( GL_TRIANGLE_FAN );
if(texturing) {
for(k = 0; k < nfan; k++) {
glTexCoord2fv( &xyfan[k][0] );
glVertex3f(
sp->p.x[0] + size*sfan[k].x[0],
sp->p.x[1] + size*sfan[k].x[1],
sp->p.x[2] + size*sfan[k].x[2] );
}
} else {
for(k = 0; k < nfan; k++) {
glVertex3f(
sp->p.x[0] + size*sfan[k].x[0],
sp->p.x[1] + size*sfan[k].x[1],
sp->p.x[2] + size*sfan[k].x[2] );
}
}
glEnd();
}
}
free(obase);
if(texturing > 0)
txbind( NULL, NULL );
}
void drawspecks( struct stuff *st )
{
int i, slno, k;
int rgba, alpha, prevrgba = 0;
float prevsize = 0;
struct specklist *sl, *slhead;
register struct speck *p;
Matrix Tw2c, Tc2w, Ttext, Tproj, Ttemp;
static Point zero = {0,0,0};
int xywh[4];
float radperpix;
Point tp, fan[MAXXYFAN];
Point eyepoint;
Point fwd;
float fwdd;
float tscale, scl, fanscale;
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int skip;
static int nxyfan = 0;
static float xyfan[MAXXYFAN][2];
static unsigned char randskip[256];
int randix = 0;
int fast = st->fast;
int inpick = st->inpick;
int usethresh = st->usethresh&P_USETHRESH ? THRESHBIT : 0;
int fixeddist;
float polyminrad, polymaxrad;
float threshmin = st->thresh[0];
float threshmax = st->thresh[1];
int useclip = (st->clipbox.level > 0);
Point clipp0 = st->clipbox.p0;
Point clipp1 = st->clipbox.p1;
float plum = st->psize;
float knee1dist2 = st->fadeknee1 * st->fadeknee1;
float knee2dist2 = st->fadeknee2 * st->fadeknee2;
float orthodist2 = st->fadeknee2 * st->fadeknee2;
float steep2knee2 = st->knee2steep * st->knee2steep / knee2dist2;
float faderball2 = 1 / (st->fadeknee2 * st->fadeknee2);
Point fadecen = st->fadecen;
enum FadeType fademodel = st->fade;
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if(!st->useme)
return;
switch(fademodel) {
case F_CONSTANT:
if(orthodist2 <= 0)
orthodist2 = 1;
break;
case F_KNEE12:
if(st->fadeknee1 >= st->fadeknee2 || st->fadeknee1 <= 0)
fademodel = F_KNEE2; /* and fall into... */
case F_KNEE2:
if(st->fadeknee2 <= 0)
fademodel = F_SPHERICAL;
break;
case F_LREGION:
if(st->fadeknee2 <= 0) faderball2 = 1;
break;
}
{ float r=0,g=0,b=0; /* Ugh. Allow background to be non-black */
sscanf(parti_bgcolor(NULL), "%f%f%f", &r,&g,&b);
additive_blend = (r+g+b == 0);
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}
if(st->clipbox.level != 0) {
GLdouble plane[4];
if(st->clipbox.level == 1) {
struct AMRbox b[2];
b[0] = st->clipbox;
b[0].level = 0;
b[1].level = -1;
specks_draw_boxes( st, b, ~0, Tidentity, 1 );
}
for(i = 0; i < 3; i++) {
plane[0] = plane[1] = plane[2] = 0;
plane[i] = 1;
plane[3] = -st->clipbox.p0.x[i];
glClipPlane( GL_CLIP_PLANE0 + i, plane );
glEnable( GL_CLIP_PLANE0 + i );
plane[i] = -1;
plane[3] = st->clipbox.p1.x[i];
glClipPlane( GL_CLIP_PLANE0 + 3 + i, plane );
glEnable( GL_CLIP_PLANE0 + 3 + i );
}
}
if(nxyfan != st->npolygon && st->npolygon > 0) {
if(st->npolygon > MAXXYFAN) st->npolygon = MAXXYFAN;
nxyfan = st->npolygon;
fanscale = 1 / cos(M_PI/nxyfan);
float th = (i+.5f)*2*M_PI / nxyfan;
xyfan[i][0] = cos(th) * fanscale;
xyfan[i][1] = sin(th) * fanscale;
}
srandom(11);
for(i = 0; i < 256; i++)
randskip[i] = random() & 0xFF;
}
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/* Find displacements which lie in the screen plane, for making
* billboard-style polygonal patches, and for text.
*/
glGetFloatv( GL_MODELVIEW_MATRIX, Tw2c.m );
eucinv( &Tc2w, &Tw2c );
scl = vlength( (Point *)&Tw2c.m[0] );
for(i = 0; i < nxyfan; i++) {
tp.x[0] = scl*st->polysize*xyfan[i][0];
tp.x[1] = scl*st->polysize*xyfan[i][1];
tp.x[2] = 0;
vtfmvector( &fan[i], &tp, &Tc2w );
}
/* Find projection matrix and screen (well, viewport) size,
* so we can convert angular sizes to screen (pixel) sizes,
* in radians per pixel.
*/
glGetFloatv( GL_PROJECTION_MATRIX, Tproj.m );
glGetIntegerv( GL_VIEWPORT, xywh );
radperpix = 1 / (.5*xywh[2] * Tproj.m[0*4+0]);
/* Construct a "forward" vector in object coords too, for measuring
* distance from camera plane. Note camera looks toward its -Z axis not +Z!
*/
tp.x[0] = 0, tp.x[1] = 0, tp.x[2] = -1;
vtfmvector( &fwd, &tp, &Tc2w );
vunit( &fwd, &fwd );
/*
* Actually we want a plane equation, whose value is zero in the
* eye plane. Camera-space distance from camera plane =
* vdot( &objectpoint, &fwd ) + fwdd.
*/
vtfmpoint( &eyepoint, &zero, &Tc2w );
fwdd = -vdot( &eyepoint, &fwd );
tscale = scl * st->textsize;
mcopy( &Ttemp, &Tidentity );
Ttemp.m[0*4+0] = Ttemp.m[1*4+1] = Ttemp.m[2*4+2] = tscale;
mmmul( &Ttext, &Ttemp, &Tc2w );
vsettranslation( &Ttext, &zero );
glDisable( GL_LIGHTING );
/* Draw any boxes (even if we have no specks) for this timestep */
if(st->useboxes && st->boxlevelmask != 0
&& st->frame_time >= 0 && st->frame_time < st->boxtimes
&& st->boxes[st->frame_time] != NULL) {
specks_draw_boxes( st, st->boxes[st->frame_time], st->boxlevelmask, Ttext, 0 );
}
if(st->useboxes && st->staticboxes != NULL) {
specks_draw_boxes( st, st->staticboxes, st->boxlevelmask, Ttext, st->boxaxes );
}
slhead = st->frame_sl; /* st->sl as snapped by specks_ffn() */
if(slhead == NULL)
slhead = st->sl; /* maybe there is no specks_ffn() */
if(slhead && slhead->subsampled != 0) /* if already subsampled */
skip /= slhead->subsampled;
if(skip == 0) skip = 1;
for(sl = slhead; sl != NULL; sl = sl->next)
sl->used = st->used;
if((unsigned int)st->sizedby <= MAXVAL
&& (unsigned int)st->curdata < MAXFILES
&& st->vdesc[st->curdata][st->sizedby].lum != 0) {
plum *= st->vdesc[st->curdata][st->sizedby].lum;
}
plum *= st->subsample; /* Compensate for "every" subsampling */
if(st->alpha >= 1) {
glDisable(GL_BLEND);
glEnable(GL_DEPTH_TEST);
} else {
glEnable(GL_BLEND);
glBlendFunc( GL_SRC_ALPHA, additive_blend ? GL_ONE : GL_ONE_MINUS_SRC_ALPHA );
glEnable(GL_DEPTH_TEST);
glDepthMask( GL_FALSE );
}
if(inpick) glLoadName(0);
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if(st->usepoly && st->polysize > 0) {
int texturing = 0;
int texturevar = st->usetextures && st->texturevar >= 0
&& st->texturevar < MAXVAL
? st->texturevar : -1;
int usearea = st->polyarea;
int sizevar = st->polysizevar;
float polysize = st->polysize;
float mins2d;
int txno;
glMatrixMode( GL_TEXTURE );
glLoadIdentity();
glTranslatef( .5, .5, 0 );
glScalef( st->txscale, st->txscale, st->txscale );
glMatrixMode( GL_MODELVIEW );
polyminrad = st->polymin * radperpix;
polymaxrad = st->polymax * radperpix;
mins2d = polyminrad*polyminrad;
if(sizevar == -1) {
/* If polygon size is tied to point size,
* then include pointsize scale factors in polygon scaling.
*/
if((unsigned int)st->sizedby <= MAXVAL
&& (unsigned int)st->curdata < MAXFILES
&& st->vdesc[st->curdata][st->sizedby].lum != 0)
polysize *= st->vdesc[st->curdata][st->sizedby].lum;
polysize *= st->subsample; /* Compensate for "every" subsampling */
}
if(st->depthsort && !inpick) {
depth_fwd = fwd;
depth_d = fwdd;
sortedpolys( st, slhead, &Tc2w, radperpix, polysize );
} else {
for(sl = slhead, slno = 1; sl != NULL; sl = sl->next, slno++) {
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if(inpick) {
glLoadName(slno);
glPushName(0);
}
for(i = 0, p = sl->specks; i < sl->nspecks; i+=skip, p = NextSpeck( p, sl, skip )) {
float dist = VDOT( &p->p, &fwd ) + fwdd;
float size;
if(dist <= 0) continue;
if(usethresh & p->rgba)
continue;
size = p->val[sizevar] * polysize;
if(usearea) {
if(size < dist * dist * mins2d)
continue;
size = sqrtf(size);
} else {
if(size < dist * polyminrad)
continue;
}
if(size > dist * polymaxrad)
size = dist * polymaxrad;
rgba = p->rgba & ~THRESHBIT;
if(rgba != prevrgba) {
prevrgba = rgba;
rgba = RGBALPHA( prevrgba, alpha );
glColor4ubv( (GLubyte *)&rgba );
}
if(st->polyorivar0 >= 0 && p->val[st->polyorivar0] < 9) {
for(k = 0; k < nxyfan; k++) {
vcomb( &fan[k],
size*xyfan[k][0], (Point *)&p->val[st->polyorivar0],
size*xyfan[k][1], (Point *)&p->val[st->polyorivar0+3] );
}
} else if(p->size != prevsize) {
float s = scl*size;
for(k = 0; k < nxyfan; k++) {
vcomb( &fan[k], s*xyfan[k][0], (Point *)&Tc2w.m[0*4+0],
s*xyfan[k][1], (Point *)&Tc2w.m[1*4+0] );
}
prevsize = size;
}
#define PFAN(vno, comp) p->p.x[comp] + fan[vno].x[comp]
if(inpick) {
glLoadName( i );
glBegin( GL_TRIANGLE_FAN );
for(k = 0; k < nxyfan; k++) {
glVertex3f( PFAN(k,0), PFAN(k,1), PFAN(k,2) );
}
glEnd();
} else if(texturevar >= 0
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&& txno < st->ntextures &&
st->textures[txno] != NULL) {
txbind( st->textures[txno], &texturing );
glBegin( GL_TRIANGLE_FAN );
for(k = 0; k < nxyfan; k++) {
glTexCoord2fv( &xyfan[k][0] );
glVertex3f( PFAN(k,0), PFAN(k,1), PFAN(k,2) );
}
glEnd();
} else {
if(texturing) {
texturing = 0;
glDisable( GL_TEXTURE_2D );
}
glBegin(GL_TRIANGLE_FAN);
for(k = 0; k < nxyfan; k++)
glVertex3f( PFAN(k,0), PFAN(k,1), PFAN(k,2) );
glEnd();
}
#undef PFAN
}
if(inpick) glPopName();
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glDisable( GL_TEXTURE_2D );
}
glMatrixMode( GL_TEXTURE );
glLoadIdentity();
glMatrixMode( GL_MODELVIEW );
}
if(st->usepoint && !(st->useboxes == 2)) {
#define MAXPTSIZE 16 /* in half-point units */
#define PERBUCKET 64 /* max points per bucket */
struct cpoint sized[MAXPTSIZE*2][PERBUCKET];
int nsized[MAXPTSIZE*2];
unsigned char invgamma[256];
float invgam = (st->gamma <= 0) ? 0 : 1/st->gamma;
for(i = 0; i < 256; i++)
invgamma[i] = (int) (255.99 * pow( i/255., invgam ));
if(inpick) {
for(sl = slhead, slno = 1; sl != NULL; sl = sl->next, slno++) {
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glLoadName(slno);
glPushName(0);
for(i = 0, p = sl->specks; i < sl->nspecks; i+=skip, p = NextSpeck(p, sl, skip)) {
if(usethresh & p->rgba)
continue;
glLoadName(i);
glBegin(GL_POINTS);
glVertex3fv( &p->p.x[0] );
glEnd();
}
glPopName();
}
} else if(fast) {
static unsigned char apxsize[MAXPTSIZE*MAXPTSIZE];
unsigned char faintrand[256];
int pxsize, oldpxsize;
int pxmin, pxmax;
pxmin = 256 * st->pfaint;
if(st->plarge > MAXPTSIZE) st->plarge = MAXPTSIZE;
pxmax = 256 * st->plarge * st->plarge;
if(apxsize[1] == 0) {
for(i=0; i<COUNT(apxsize); i++)
apxsize[i] = (int)ceil(sqrtf(i+1));
}
for(i = 0; i < 256; i++)
faintrand[i] = randskip[i] * st->pfaint;
/* Render using fast (non-antialiased) points */
glDisable( GL_POINT_SMOOTH );
glEnable( GL_BLEND );
glBlendFunc( GL_SRC_ALPHA, additive_blend ? GL_ONE : GL_ONE_MINUS_SRC_ALPHA );
prevrgba = 0;
prevsize = 0;
sl = slhead;
pxsize = oldpxsize = 1;
glPointSize( pxsize );
glColor4ubv( (GLubyte *)&rgba );
for(i = 0; i < MAXPTSIZE*2; i++)
nsized[i] = 0;
glBegin( GL_POINTS );
for(sl = slhead; sl != NULL; sl = sl->next) {
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for(i = 0, p = sl->specks; i < sl->nspecks; i+=skip, p= NextSpeck(p, sl, skip)) {
int lum, myalpha;
float dist = VDOT( &p->p, &fwd ) + fwdd;
if(dist <= 0) /* Behind eye plane */
continue;
if(usethresh & p->rgba)
continue;
if(useclip &&
(p->p.x[0] < clipp0.x[0] ||
p->p.x[0] > clipp1.x[0] ||
p->p.x[1] < clipp0.x[1] ||
p->p.x[1] > clipp1.x[1] ||
p->p.x[2] < clipp0.x[2] ||
p->p.x[2] > clipp1.x[2]))
continue;
lum = 256 * plum * p->size / (dist*dist);
if(lum < pxmin) {
if(lum <= faintrand[(i*i+i) /*randix++*/ & 0xFF])
continue;
pxsize = 1;
myalpha = pxmin;
} else if(lum < 256) {
pxsize = 1;
myalpha = lum;
} else if(lum < pxmax) {
pxsize = apxsize[lum>>8];
myalpha = lum / (pxsize*pxsize);
} else {
/* Could use a polygon here, instead. */
pxsize = st->plarge;
myalpha = 255;
}
if(pxsize < 1 || pxsize > 6 || myalpha <= 0 || myalpha > 255) {
static int oops;
oops++;
}
if(myalpha < 0 || myalpha > 255 || invgamma[myalpha] <= 0 || invgamma[myalpha] > 255) {
static int oops2;
oops2++;
}
rgba = RGBALPHA( p->rgba&~THRESHBIT, invgamma[myalpha] & 0xFC );
if(pxsize != oldpxsize) {
if(nsized[pxsize] >= PERBUCKET) {
glEnd();
glPointSize(pxsize);
glBegin( GL_POINTS );
dumpcpoints( &sized[pxsize][0], PERBUCKET );
nsized[pxsize] = 0;
oldpxsize = pxsize;
glColor4ubv( (GLubyte *)&rgba );
prevrgba = rgba;
glVertex3fv( &p->p.x[0] );
} else {
struct cpoint *cp = &sized[pxsize][nsized[pxsize]];
cp->rgba = rgba;
cp->p = p->p;
nsized[pxsize]++;
}
} else {
/* same as current pointsize */
if(rgba != prevrgba) {
glColor4ubv( (GLubyte *)&rgba );
prevrgba = rgba;
}
glVertex3fv( &p->p.x[0] );
}
}
}
glEnd();
for(i = 0; i < MAXPTSIZE; i++) {
if(nsized[i] > 0) {
glPointSize( i );
glBegin( GL_POINTS );
dumpcpoints( &sized[i][0], nsized[i] );
glEnd();
}
}
} else {
/*
* Render using anti-aliased points
*/
static unsigned char apxsize[(MAXPTSIZE*2)*(MAXPTSIZE*2)];
unsigned char faintrand[256];
static float percoverage[MAXPTSIZE*2];
static int needMesaHack = 0;
int pxsize, oldpxsize;
int pxmin, pxmax;
int minsize, minalpha;
pxmin = (256 * (2*2)) * st->pfaint;
if(st->plarge > MAXPTSIZE*2) st->plarge = MAXPTSIZE*2;
pxmax = (256 * (2*2)) * st->plarge * st->plarge;
if(apxsize[1] == 0) {
char *version = (char *)glGetString( GL_VERSION );
/* Hack: MESA doesn't handle small anti-aliased points well;
* force them all to be of size 1.0 or 2.0 (i.e. pxsize == 2 or 4),
* and non-antialiased.
*/
if(getenv("MESAHACK") != NULL)
needMesaHack = atoi(getenv("MESAHACK"));
else if(version &&
(!strncmp(version, "CRIME", 5) || !strncmp(version, "IR", 2)))
needMesaHack = 0; /* O2 & IR: nice anti-aliased points */
else
needMesaHack = -1; /* IMPACT (& others?): ugly AA points */
for(i=0; i<COUNT(apxsize); i++) {
apxsize[i] = (int)ceil(sqrtf(i+1));
if(needMesaHack>0) {
if(apxsize[i] <= 2) apxsize[i] = 2;
else if(needMesaHack<2 && apxsize[i] <= 4) apxsize[i] = 4;
}
}
for(i = 1; i < MAXPTSIZE*2; i++) {
percoverage[i] = 1.0 / (i*i);
if(needMesaHack>0) {
if(i <= 2) percoverage[i] = .25;
else if(needMesaHack<2 && i <= 4) percoverage[i] = .0625;
}
}
percoverage[0] = 1.0;
if(needMesaHack < 0)
percoverage[1] = 0.25; /* if gfx treats psize 0.5 == 1.0 */
}
minsize = apxsize[ pxmin >> 8 ];
minalpha = pxmin * percoverage[ minsize ];
for(i = 0; i < 256; i++)
faintrand[i] = randskip[i] * st->pfaint;
/* Render using antialiased points */
glEnable( GL_POINT_SMOOTH );
glEnable( GL_BLEND );
glBlendFunc( GL_SRC_ALPHA, additive_blend ? GL_ONE : GL_ONE_MINUS_SRC_ALPHA );
prevrgba = 0;
prevsize = 0;
sl = slhead;
pxsize = 2;
oldpxsize = 99;
glPointSize( pxsize );
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