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47 #ifdef GMX_USE_PLUGINS
50 #include "gromacs/utility/smalloc.h"
57 #include "tngio_for_tools.h"
59 #include "gromacs/math/vec.h"
60 #include "gromacs/utility/futil.h"
64 #include "checkpoint.h"
67 #include "gromacs/fileio/timecontrol.h"
68 #include "gromacs/utility/fatalerror.h"
70 /* defines for frame counter output */
85 char *persistent_line; /* Persistent line for reading g96 trajectories */
88 /* utility functions */
90 gmx_bool bRmod_fd(double a, double b, double c, gmx_bool bDouble)
95 tol = 2*(bDouble ? GMX_DOUBLE_EPS : GMX_FLOAT_EPS);
97 iq = (int)((a - b + tol*a)/c);
99 if (fabs(a - b - c*iq) <= tol*fabs(a))
111 int check_times2(real t, real t0, gmx_bool bDouble)
116 /* since t is float, we can not use double precision for bRmod */
121 if ((!bTimeSet(TBEGIN) || (t >= rTimeValue(TBEGIN))) &&
122 (!bTimeSet(TEND) || (t <= rTimeValue(TEND))))
124 if (bTimeSet(TDELTA) && !bRmod_fd(t, t0, rTimeValue(TDELTA), bDouble))
133 else if (bTimeSet(TEND) && (t >= rTimeValue(TEND)))
139 fprintf(debug, "t=%g, t0=%g, b=%g, e=%g, dt=%g: r=%d\n",
140 t, t0, rTimeValue(TBEGIN), rTimeValue(TEND), rTimeValue(TDELTA), r);
145 int check_times(real t)
147 return check_times2(t, t, FALSE);
150 static void initcount(t_trxstatus *status)
152 status->__frame = -1;
155 static void status_init(t_trxstatus *status)
158 status->xframe = NULL;
160 status->__frame = -1;
161 status->persistent_line = NULL;
166 int nframes_read(t_trxstatus *status)
168 return status->__frame;
171 static void printcount_(t_trxstatus *status, const output_env_t oenv,
172 const char *l, real t)
174 if ((status->__frame < 2*SKIP1 || status->__frame % SKIP1 == 0) &&
175 (status->__frame < 2*SKIP2 || status->__frame % SKIP2 == 0) &&
176 (status->__frame < 2*SKIP3 || status->__frame % SKIP3 == 0))
178 fprintf(stderr, "\r%-14s %6d time %8.3f ", l, status->__frame,
179 output_env_conv_time(oenv, t));
183 static void printcount(t_trxstatus *status, const output_env_t oenv, real t,
187 printcount_(status, oenv, bSkip ? "Skipping frame" : "Reading frame", t);
190 static void printlast(t_trxstatus *status, const output_env_t oenv, real t)
192 printcount_(status, oenv, "Last frame", t);
193 fprintf(stderr, "\n");
196 static void printincomp(t_trxstatus *status, t_trxframe *fr)
198 if (fr->not_ok & HEADER_NOT_OK)
200 fprintf(stderr, "WARNING: Incomplete header: nr %d time %g\n",
201 status->__frame+1, fr->time);
205 fprintf(stderr, "WARNING: Incomplete frame: nr %d time %g\n",
206 status->__frame+1, fr->time);
210 int prec2ndec(real prec)
214 gmx_fatal(FARGS, "DEATH HORROR prec (%g) <= 0 in prec2ndec", prec);
217 return (int)(log(prec)/log(10.0)+0.5);
220 real ndec2prec(int ndec)
222 return pow(10.0, ndec);
225 t_fileio *trx_get_fileio(t_trxstatus *status)
230 float trx_get_time_of_final_frame(t_trxstatus *status)
232 t_fileio *stfio = trx_get_fileio(status);
233 int filetype = gmx_fio_getftp(stfio);
237 if (filetype == efXTC)
240 xdr_xtc_get_last_frame_time(gmx_fio_getfp(stfio),
241 gmx_fio_getxdr(stfio),
242 status->xframe->natoms, &bOK);
245 gmx_fatal(FARGS, "Error reading last frame. Maybe seek not supported." );
248 else if (filetype == efTNG)
250 tng_trajectory_t tng = status->tng;
253 gmx_fatal(FARGS, "Error opening TNG file.");
255 lasttime = gmx_tng_get_time_of_final_frame(tng);
259 gmx_incons("Only supported for TNG and XTC");
264 void clear_trxframe(t_trxframe *fr, gmx_bool bFirst)
271 fr->bFepState = FALSE;
302 void set_trxframe_ePBC(t_trxframe *fr, int ePBC)
304 fr->bPBC = (ePBC == -1);
308 int write_trxframe_indexed(t_trxstatus *status, t_trxframe *fr, int nind,
309 const atom_id *ind, gmx_conect gc)
312 rvec *xout = NULL, *vout = NULL, *fout = NULL;
329 else if (status->fio)
331 ftp = gmx_fio_getftp(status->fio);
335 gmx_incons("No input file available");
347 gmx_fatal(FARGS, "Need coordinates to write a %s trajectory",
361 for (i = 0; i < nind; i++)
363 copy_rvec(fr->v[ind[i]], vout[i]);
369 for (i = 0; i < nind; i++)
371 copy_rvec(fr->f[ind[i]], fout[i]);
379 for (i = 0; i < nind; i++)
381 copy_rvec(fr->x[ind[i]], xout[i]);
392 gmx_write_tng_from_trxframe(status->tng, fr, nind);
395 write_xtc(status->fio, nind, fr->step, fr->time, fr->box, xout, prec);
399 fwrite_trn(status->fio, nframes_read(status),
400 fr->time, fr->step, fr->box, nind, xout, vout, fout);
408 gmx_fatal(FARGS, "Can not write a %s file without atom names",
411 sprintf(title, "frame t= %.3f", fr->time);
414 write_hconf_indexed_p(gmx_fio_getfp(status->fio), title, fr->atoms, nind, ind,
416 fr->x, fr->bV ? fr->v : NULL, fr->box);
420 write_pdbfile_indexed(gmx_fio_getfp(status->fio), title, fr->atoms,
421 fr->x, -1, fr->box, ' ', fr->step, nind, ind, gc, TRUE);
425 write_g96_conf(gmx_fio_getfp(status->fio), fr, nind, ind);
428 gmx_fatal(FARGS, "Sorry, write_trxframe_indexed can not write %s",
458 void trjtools_gmx_prepare_tng_writing(const char *filename,
464 const gmx_mtop_t *mtop,
465 const atom_id *index,
466 const char *index_group_name)
468 if (filemode != 'w' && filemode != 'a')
470 gmx_incons("Sorry, can only prepare for TNG output.");
481 gmx_prepare_tng_writing(filename,
490 else if (efTNG == fn2ftp(infile))
492 tng_trajectory_t tng_in;
493 gmx_tng_open(infile, 'r', &tng_in);
495 gmx_prepare_tng_writing(filename,
506 void write_tng_frame(t_trxstatus *status,
509 gmx_write_tng_from_trxframe(status->tng, frame, -1);
512 int write_trxframe(t_trxstatus *status, t_trxframe *fr, gmx_conect gc)
528 gmx_tng_set_compression_precision(status->tng, prec);
529 write_tng_frame(status, fr);
534 switch (gmx_fio_getftp(status->fio))
542 gmx_fatal(FARGS, "Need coordinates to write a %s trajectory",
543 ftp2ext(gmx_fio_getftp(status->fio)));
548 switch (gmx_fio_getftp(status->fio))
551 write_xtc(status->fio, fr->natoms, fr->step, fr->time, fr->box, fr->x, prec);
555 fwrite_trn(status->fio, fr->step, fr->time, fr->lambda, fr->box, fr->natoms,
556 fr->bX ? fr->x : NULL, fr->bV ? fr->v : NULL, fr->bF ? fr->f : NULL);
564 gmx_fatal(FARGS, "Can not write a %s file without atom names",
565 ftp2ext(gmx_fio_getftp(status->fio)));
567 sprintf(title, "frame t= %.3f", fr->time);
568 if (gmx_fio_getftp(status->fio) == efGRO)
570 write_hconf_p(gmx_fio_getfp(status->fio), title, fr->atoms,
571 prec2ndec(prec), fr->x, fr->bV ? fr->v : NULL, fr->box);
575 write_pdbfile(gmx_fio_getfp(status->fio), title,
576 fr->atoms, fr->x, fr->bPBC ? fr->ePBC : -1, fr->box,
577 ' ', fr->step, gc, TRUE);
581 write_g96_conf(gmx_fio_getfp(status->fio), fr, -1, NULL);
584 gmx_fatal(FARGS, "Sorry, write_trxframe can not write %s",
585 ftp2ext(gmx_fio_getftp(status->fio)));
592 int write_trx(t_trxstatus *status, int nind, const atom_id *ind, t_atoms *atoms,
593 int step, real time, matrix box, rvec x[], rvec *v,
598 clear_trxframe(&fr, TRUE);
603 fr.bAtoms = atoms != NULL;
610 copy_mat(box, fr.box);
612 return write_trxframe_indexed(status, &fr, nind, ind, gc);
615 void close_trx(t_trxstatus *status)
617 gmx_tng_close(&status->tng);
620 gmx_fio_close(status->fio);
625 t_trxstatus *open_trx(const char *outfile, const char *filemode)
628 if (filemode[0] != 'w' && filemode[0] != 'a' && filemode[1] != '+')
630 gmx_fatal(FARGS, "Sorry, write_trx can only write");
636 stat->fio = gmx_fio_open(outfile, filemode);
640 static gmx_bool gmx_next_frame(t_trxstatus *status, t_trxframe *fr)
647 if (fread_trnheader(status->fio, &sh, &bOK))
649 fr->bDouble = sh.bDouble;
650 fr->natoms = sh.natoms;
656 fr->bFepState = TRUE;
657 fr->lambda = sh.lambda;
658 fr->bBox = sh.box_size > 0;
659 if (fr->flags & (TRX_READ_X | TRX_NEED_X))
663 snew(fr->x, sh.natoms);
665 fr->bX = sh.x_size > 0;
667 if (fr->flags & (TRX_READ_V | TRX_NEED_V))
671 snew(fr->v, sh.natoms);
673 fr->bV = sh.v_size > 0;
675 if (fr->flags & (TRX_READ_F | TRX_NEED_F))
679 snew(fr->f, sh.natoms);
681 fr->bF = sh.f_size > 0;
683 if (fread_htrn(status->fio, &sh, fr->box, fr->x, fr->v, fr->f))
689 fr->not_ok = DATA_NOT_OK;
695 fr->not_ok = HEADER_NOT_OK;
701 static gmx_bool pdb_next_x(t_trxstatus *status, FILE *fp, t_trxframe *fr)
705 int ePBC, model_nr, na;
706 char title[STRLEN], *time;
709 atoms.nr = fr->natoms;
711 atoms.pdbinfo = NULL;
712 /* the other pointers in atoms should not be accessed if these are NULL */
714 na = read_pdbfile(fp, title, &model_nr, &atoms, fr->x, &ePBC, boxpdb, TRUE, NULL);
715 set_trxframe_ePBC(fr, ePBC);
716 if (nframes_read(status) == 0)
718 fprintf(stderr, " '%s', %d atoms\n", title, fr->natoms);
723 fr->bBox = (boxpdb[XX][XX] != 0.0);
726 copy_mat(boxpdb, fr->box);
729 if (model_nr != NOTSET)
734 time = strstr(title, " t= ");
738 sscanf(time+4, "%lf", &dbl);
739 fr->time = (real)dbl;
744 /* this is a bit dirty, but it will work: if no time is read from
745 comment line in pdb file, set time to current frame number */
748 fr->time = (real)fr->step;
752 fr->time = (real)nframes_read(status);
761 if (na != fr->natoms)
763 gmx_fatal(FARGS, "Number of atoms in pdb frame %d is %d instead of %d",
764 nframes_read(status), na, fr->natoms);
770 static int pdb_first_x(t_trxstatus *status, FILE *fp, t_trxframe *fr)
774 fprintf(stderr, "Reading frames from pdb file");
776 get_pdb_coordnum(fp, &fr->natoms);
779 gmx_fatal(FARGS, "\nNo coordinates in pdb file\n");
782 snew(fr->x, fr->natoms);
783 pdb_next_x(status, fp, fr);
788 gmx_bool read_next_frame(const output_env_t oenv, t_trxstatus *status, t_trxframe *fr)
792 gmx_bool bOK, bRet, bMissingData = FALSE, bSkip = FALSE;
801 clear_trxframe(fr, FALSE);
807 /* Special treatment for TNG files */
812 ftp = gmx_fio_getftp(status->fio);
818 bRet = gmx_next_frame(status, fr);
821 /* Checkpoint files can not contain mulitple frames */
824 read_g96_conf(gmx_fio_getfp(status->fio), NULL, fr,
825 status->persistent_line);
826 bRet = (fr->natoms > 0);
830 * Sometimes is off by one frame
831 * and sometimes reports frame not present/file not seekable
833 /* DvdS 2005-05-31: this has been fixed along with the increased
834 * accuracy of the control over -b and -e options.
836 if (bTimeSet(TBEGIN) && (fr->time < rTimeValue(TBEGIN)))
838 if (xtc_seek_time(status->fio, rTimeValue(TBEGIN), fr->natoms, TRUE))
840 gmx_fatal(FARGS, "Specified frame (time %f) doesn't exist or file corrupt/inconsistent.",
845 bRet = read_next_xtc(status->fio, fr->natoms, &fr->step, &fr->time, fr->box,
846 fr->x, &fr->prec, &bOK);
847 fr->bPrec = (bRet && fr->prec > 0);
854 /* Actually the header could also be not ok,
855 but from bOK from read_next_xtc this can't be distinguished */
856 fr->not_ok = DATA_NOT_OK;
860 bRet = gmx_read_next_tng_frame(status->tng, fr, NULL, 0);
863 bRet = pdb_next_x(status, gmx_fio_getfp(status->fio), fr);
866 bRet = gro_next_x_or_v(gmx_fio_getfp(status->fio), fr);
869 #ifdef GMX_USE_PLUGINS
870 bRet = read_next_vmd_frame(fr);
872 gmx_fatal(FARGS, "DEATH HORROR in read_next_frame ftp=%s,status=%s",
873 ftp2ext(gmx_fio_getftp(status->fio)),
874 gmx_fio_getname(status->fio));
880 bMissingData = (((fr->flags & TRX_NEED_X) && !fr->bX) ||
881 ((fr->flags & TRX_NEED_V) && !fr->bV) ||
882 ((fr->flags & TRX_NEED_F) && !fr->bF));
886 ct = check_times2(fr->time, fr->t0, fr->bDouble);
887 if (ct == 0 || ((fr->flags & TRX_DONT_SKIP) && ct < 0))
889 printcount(status, oenv, fr->time, FALSE);
897 printcount(status, oenv, fr->time, TRUE);
904 while (bRet && (bMissingData || bSkip));
908 printlast(status, oenv, pt);
911 printincomp(status, fr);
918 int read_first_frame(const output_env_t oenv, t_trxstatus **status,
919 const char *fn, t_trxframe *fr, int flags)
922 gmx_bool bFirst, bOK;
924 int ftp = fn2ftp(fn);
925 gmx_int64_t *tng_ids;
927 clear_trxframe(fr, TRUE);
934 status_init( *status );
935 (*status)->nxframe = 1;
940 /* Special treatment for TNG files */
941 gmx_tng_open(fn, 'r', &(*status)->tng);
945 fio = (*status)->fio = gmx_fio_open(fn, "r");
953 read_checkpoint_trxframe(fio, fr);
957 /* Can not rewind a compressed file, so open it twice */
958 if (!(*status)->persistent_line)
960 /* allocate the persistent line */
961 snew((*status)->persistent_line, STRLEN+1);
963 read_g96_conf(gmx_fio_getfp(fio), fn, fr, (*status)->persistent_line);
965 clear_trxframe(fr, FALSE);
966 if (flags & (TRX_READ_X | TRX_NEED_X))
968 snew(fr->x, fr->natoms);
970 if (flags & (TRX_READ_V | TRX_NEED_V))
972 snew(fr->v, fr->natoms);
974 fio = (*status)->fio = gmx_fio_open(fn, "r");
977 if (read_first_xtc(fio, &fr->natoms, &fr->step, &fr->time, fr->box, &fr->x,
978 &fr->prec, &bOK) == 0)
981 fr->not_ok = DATA_NOT_OK;
986 printincomp(*status, fr);
990 fr->bPrec = (fr->prec > 0);
995 printcount(*status, oenv, fr->time, FALSE);
1001 if (!gmx_read_next_tng_frame((*status)->tng, fr, NULL, 0))
1003 fr->not_ok = DATA_NOT_OK;
1005 printincomp(*status, fr);
1009 printcount(*status, oenv, fr->time, FALSE);
1014 pdb_first_x(*status, gmx_fio_getfp(fio), fr);
1017 printcount(*status, oenv, fr->time, FALSE);
1022 if (gro_first_x_or_v(gmx_fio_getfp(fio), fr))
1024 printcount(*status, oenv, fr->time, FALSE);
1029 #ifdef GMX_USE_PLUGINS
1030 fprintf(stderr, "The file format of %s is not a known trajectory format to GROMACS.\n"
1031 "Please make sure that the file is a trajectory!\n"
1032 "GROMACS will now assume it to be a trajectory and will try to open it using the VMD plug-ins.\n"
1033 "This will only work in case the VMD plugins are found and it is a trajectory format supported by VMD.\n", fn);
1034 gmx_fio_fp_close(fio); /*only close the file without removing FIO entry*/
1035 if (!read_first_vmd_frame(fn, fr))
1037 gmx_fatal(FARGS, "Not supported in read_first_frame: %s", fn);
1040 gmx_fatal(FARGS, "Not supported in read_first_frame: %s. Please make sure that the file is a trajectory.\n"
1041 "GROMACS is not compiled with plug-in support. Thus it cannot read non-GROMACS trajectory formats using the VMD plug-ins.\n"
1042 "Please compile with plug-in support if you want to read non-GROMACS trajectory formats.\n", fn);
1047 /* Return FALSE if we read a frame that's past the set ending time. */
1048 if (!bFirst && (!(fr->flags & TRX_DONT_SKIP) && check_times(fr->time) > 0))
1055 (!(fr->flags & TRX_DONT_SKIP) && check_times(fr->time) < 0))
1057 /* Read a frame when no frame was read or the first was skipped */
1058 if (!read_next_frame(oenv, *status, fr))
1065 return (fr->natoms > 0);
1068 /***** C O O R D I N A T E S T U F F *****/
1070 int read_first_x(const output_env_t oenv, t_trxstatus **status, const char *fn,
1071 real *t, rvec **x, matrix box)
1075 read_first_frame(oenv, status, fn, &fr, TRX_NEED_X);
1077 snew((*status)->xframe, 1);
1078 (*status)->nxframe = 1;
1079 (*(*status)->xframe) = fr;
1080 *t = (*status)->xframe->time;
1081 *x = (*status)->xframe->x;
1082 copy_mat((*status)->xframe->box, box);
1084 return (*status)->xframe->natoms;
1087 gmx_bool read_next_x(const output_env_t oenv, t_trxstatus *status, real *t,
1088 rvec x[], matrix box)
1092 status->xframe->x = x;
1093 /*xframe[status].x = x;*/
1094 bRet = read_next_frame(oenv, status, status->xframe);
1095 *t = status->xframe->time;
1096 copy_mat(status->xframe->box, box);
1101 void close_trj(t_trxstatus *status)
1103 gmx_tng_close(&status->tng);
1106 gmx_fio_close(status->fio);
1109 /* The memory in status->xframe is lost here,
1110 * but the read_first_x/read_next_x functions are deprecated anyhow.
1111 * read_first_frame/read_next_frame and close_trx should be used.
1116 void rewind_trj(t_trxstatus *status)
1120 gmx_fio_rewind(status->fio);
1123 /***** T O P O L O G Y S T U F F ******/
1125 t_topology *read_top(const char *fn, int *ePBC)
1131 epbc = read_tpx_top(fn, NULL, NULL, &natoms, NULL, NULL, NULL, top);