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Diffstat (limited to 'libcrystfel/src/image-hdf5.c')
-rw-r--r-- | libcrystfel/src/image-hdf5.c | 1223 |
1 files changed, 1223 insertions, 0 deletions
diff --git a/libcrystfel/src/image-hdf5.c b/libcrystfel/src/image-hdf5.c new file mode 100644 index 00000000..6b6b70c5 --- /dev/null +++ b/libcrystfel/src/image-hdf5.c @@ -0,0 +1,1223 @@ +/* + * image-hdf5.c + * + * Image loading, HDF5 parts + * + * Copyright © 2012-2020 Deutsches Elektronen-Synchrotron DESY, + * a research centre of the Helmholtz Association. + * + * Authors: + * 2020 Thomas White <taw@physics.org> + * + * This file is part of CrystFEL. + * + * CrystFEL is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * CrystFEL is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with CrystFEL. If not, see <http://www.gnu.org/licenses/>. + * + */ + +#include <config.h> + +#include <stdlib.h> +#include <assert.h> +#include <math.h> +#include <stdio.h> +#include <hdf5.h> +#include <unistd.h> + +#include "image.h" +#include "utils.h" +#include "events.h" +#include "detgeom.h" + +#include "datatemplate.h" +#include "datatemplate_priv.h" + + +static int load_hdf5_hyperslab(struct panel_template *p, + const char *filename, + const char *event, + void **pdata, + hid_t el_type, size_t el_size, + int skip_placeholders_ok, + const char *path_spec) +{ + struct event *ev; + hid_t fh; + herr_t r; + hsize_t *f_offset, *f_count; + hid_t dh; + int hsi; + herr_t check; + hid_t dataspace, memspace; + hsize_t dims[2]; + char *panel_full_path; + void *data; + int ndims, dpos; + int skip_placeholders = 0; + + if ( access(filename, R_OK) == -1 ) { + ERROR("File does not exist or cannot be read: %s\n", + filename); + return 1; + } + + fh = H5Fopen(filename, H5F_ACC_RDONLY, H5P_DEFAULT); + if ( fh < 0 ) { + ERROR("Couldn't open file: %s\n", filename); + return 1; + } + + ev = get_event_from_event_string(event); + if ( (ev == NULL) && (event != NULL) ) { + ERROR("Invalid event identifier '%s'\n", event); + H5Fclose(fh); + return 1; + } + + panel_full_path = retrieve_full_path(ev, path_spec); + + if ( !check_path_existence(fh, panel_full_path) ) { + ERROR("Cannot find data for panel %s (%s)\n", + p->name, panel_full_path); + free_event(ev); + H5Fclose(fh); + return 1; + } + + dh = H5Dopen2(fh, panel_full_path, H5P_DEFAULT); + if ( dh < 0 ) { + ERROR("Cannot open data for panel %s (%s)\n", + p->name, panel_full_path); + free(panel_full_path); + free_event(ev); + H5Fclose(fh); + return 1; + } + + free(panel_full_path); + + /* Set up dataspace for file + * (determine where to read the data from) */ + dataspace = H5Dget_space(dh); + ndims = H5Sget_simple_extent_ndims(dataspace); + if ( ndims < 0 ) { + ERROR("Failed to get number of dimensions for panel %s\n", + p->name); + free_event(ev); + H5Fclose(fh); + return 1; + } + + if ( ndims != p->dim_structure->num_dims ) { + /* Dimensionality doesn't match */ + int n_nonplaceholder = 0; + for ( hsi=0; hsi<p->dim_structure->num_dims; hsi++ ) { + if ( p->dim_structure->dims[hsi] != HYSL_PLACEHOLDER ) { + n_nonplaceholder++; + } + } + + /* If the dimensions match after excluding + * placeholders, it's OK - probably a static mask + * in a multi-event file. */ + if ( ndims == n_nonplaceholder ) { + skip_placeholders = 1; + } + } + + f_offset = malloc(ndims*sizeof(hsize_t)); + f_count = malloc(ndims*sizeof(hsize_t)); + if ( (f_offset == NULL) || (f_count == NULL ) ) { + ERROR("Failed to allocate offset or count.\n"); + free_event(ev); + H5Fclose(fh); + return 1; + } + + dpos = 0; + for ( hsi=0; hsi<p->dim_structure->num_dims; hsi++ ) { + + switch ( p->dim_structure->dims[hsi] ) { + + case HYSL_FS: + f_offset[dpos] = p->orig_min_fs; + f_count[dpos] = p->orig_max_fs - p->orig_min_fs+1; + dpos++; + break; + + case HYSL_SS: + f_offset[dpos] = p->orig_min_ss; + f_count[dpos] = p->orig_max_ss - p->orig_min_ss+1; + dpos++; + break; + + case HYSL_PLACEHOLDER: + if ( !skip_placeholders ) { + f_offset[dpos] = ev->dim_entries[0]; + f_count[dpos] = 1; + dpos++; + } + break; + + default: + f_offset[dpos] = p->dim_structure->dims[hsi]; + f_count[dpos] = 1; + dpos++; + break; + + } + + } + + check = H5Sselect_hyperslab(dataspace, H5S_SELECT_SET, + f_offset, NULL, f_count, NULL); + if ( check < 0 ) { + ERROR("Error selecting file dataspace for panel %s\n", + p->name); + free(f_offset); + free(f_count); + free_event(ev); + H5Fclose(fh); + return 1; + } + + dims[0] = p->orig_max_ss - p->orig_min_ss + 1; + dims[1] = p->orig_max_fs - p->orig_min_fs + 1; + memspace = H5Screate_simple(2, dims, NULL); + + data = malloc(dims[0]*dims[1]*el_size); + if ( data == NULL ) { + ERROR("Failed to allocate panel %s\n", p->name); + free(f_offset); + free(f_count); + free_event(ev); + H5Fclose(fh); + return 1; + } + + r = H5Dread(dh, el_type, memspace, dataspace, + H5P_DEFAULT, data); + if ( r < 0 ) { + ERROR("Couldn't read data for panel %s\n", + p->name); + free(f_offset); + free(f_count); + free(data); + free_event(ev); + H5Fclose(fh); + return 1; + } + + H5Dclose(dh); + H5Sclose(dataspace); + free(f_offset); + free(f_count); + free_event(ev); + H5Fclose(fh); + + *pdata = data; + return 0; +} + + +struct image *image_hdf5_read(DataTemplate *dtempl, + const char *filename, const char *event) +{ + struct image *image; + int i; + + image = image_new(); + if ( image == NULL ) { + ERROR("Couldn't allocate image structure.\n"); + return NULL; + } + + image->dp = malloc(dtempl->n_panels*sizeof(float *)); + if ( image->dp == NULL ) { + ERROR("Failed to allocate data array.\n"); + image_free(image); + return NULL; + } + + /* Set all pointers to NULL for easier clean-up */ + for ( i=0; i<dtempl->n_panels; i++ ) image->dp[i] = NULL; + + for ( i=0; i<dtempl->n_panels; i++ ) { + if ( load_hdf5_hyperslab(&dtempl->panels[i], filename, + event, (void *)&image->dp[i], + H5T_NATIVE_FLOAT, + sizeof(float), 0, + dtempl->panels[i].data) ) + { + ERROR("Failed to load panel data\n"); + image_free(image); + return NULL; + } + } + + image->filename = strdup(filename); + image->ev = safe_strdup(event); + + return image; +} + + +int image_hdf5_read_mask(struct panel_template *p, + const char *filename, const char *event, + int *bad, int mask_good, int mask_bad) +{ + int p_w, p_h; + int *mask = NULL; + long unsigned int j; + + p_w = p->orig_max_fs - p->orig_min_fs + 1; + p_h = p->orig_max_ss - p->orig_min_ss + 1; + + if ( load_hdf5_hyperslab(p, filename, event, + (void *)&mask, H5T_NATIVE_INT, + sizeof(int), 1, p->mask) ) + { + ERROR("Failed to load mask data\n"); + free(mask); + return 1; + } + + for ( j=0; j<p_w*p_h; j++ ) { + + /* Bad if it's missing any of the "good" bits */ + if ( (mask[j] & mask_good) != mask_good ) bad[j] = 1; + + /* Bad if it has any of the "bad" bits. */ + if ( mask[j] & mask_bad ) bad[j] = 1; + + } + + free(mask); + return 0; +} + + +double image_hdf5_get_value(const char *name, const char *filename, + const char *event) +{ + hid_t dh; + hid_t type; + hid_t class; + hid_t sh; + hid_t ms; + hsize_t *f_offset = NULL; + hsize_t *f_count = NULL; + hsize_t m_offset[1]; + hsize_t m_count[1]; + hsize_t msdims[1]; + hsize_t size[64]; + herr_t r; + herr_t check; + int check_pe; + int dim_flag; + int ndims; + int i; + char *subst_name = NULL; + struct event *ev; + hid_t fh; + double val; + + if ( access(filename, R_OK) == -1 ) { + ERROR("File does not exist or cannot be read: %s\n", filename); + return NAN; + } + + fh = H5Fopen(filename, H5F_ACC_RDONLY, H5P_DEFAULT); + if ( fh < 0 ) { + ERROR("Couldn't open file: %s\n", filename); + return NAN; + } + ev = get_event_from_event_string(event); + if ( (ev == NULL) && (event != NULL) ) { + ERROR("Invalid event identifier '%s'\n", event); + H5Fclose(fh); + return NAN; + } + + subst_name = retrieve_full_path(ev, name); + + check_pe = check_path_existence(fh, subst_name); + if ( check_pe == 0 ) { + ERROR("No such event-based numeric field '%s'\n", subst_name); + return NAN; + } + + dh = H5Dopen2(fh, subst_name, H5P_DEFAULT); + type = H5Dget_type(dh); + class = H5Tget_class(type); + + if ( (class != H5T_FLOAT) && (class != H5T_INTEGER) ) { + ERROR("Not a floating point or integer value.\n"); + H5Tclose(type); + H5Dclose(dh); + return NAN; + } + + /* Get the dimensionality. We have to cope with scalars expressed as + * arrays with all dimensions 1, as well as zero-d arrays. */ + sh = H5Dget_space(dh); + ndims = H5Sget_simple_extent_ndims(sh); + if ( ndims > 64 ) { + ERROR("Too many dimensions for numeric value\n"); + H5Tclose(type); + H5Dclose(dh); + return NAN; + } + H5Sget_simple_extent_dims(sh, size, NULL); + + m_offset[0] = 0; + m_count[0] = 1; + msdims[0] = 1; + ms = H5Screate_simple(1,msdims,NULL); + + /* Check that the size in all dimensions is 1 + * or that one of the dimensions has the same + * size as the hyperplane events */ + + dim_flag = 0; + + for ( i=0; i<ndims; i++ ) { + if ( size[i] == 1 ) continue; + if ( ( i==0 ) && (ev != NULL) && (size[i] > ev->dim_entries[0]) ) { + dim_flag = 1; + } else { + H5Tclose(type); + H5Dclose(dh); + return NAN; + } + } + + if ( dim_flag == 0 ) { + + if ( H5Dread(dh, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, + H5P_DEFAULT, &val) < 0 ) + { + ERROR("Couldn't read value.\n"); + H5Tclose(type); + H5Dclose(dh); + return NAN; + } + + } else { + + f_offset = malloc(ndims*sizeof(hsize_t)); + f_count = malloc(ndims*sizeof(hsize_t)); + + for ( i=0; i<ndims; i++ ) { + + if ( i == 0 ) { + f_offset[i] = ev->dim_entries[0]; + f_count[i] = 1; + } else { + f_offset[i] = 0; + f_count[i] = 0; + } + + } + + check = H5Sselect_hyperslab(sh, H5S_SELECT_SET, + f_offset, NULL, f_count, NULL); + if ( check <0 ) { + ERROR("Error selecting dataspace for float value"); + free(f_offset); + free(f_count); + return NAN; + } + + ms = H5Screate_simple(1,msdims,NULL); + check = H5Sselect_hyperslab(ms, H5S_SELECT_SET, + m_offset, NULL, m_count, NULL); + if ( check < 0 ) { + ERROR("Error selecting memory dataspace for float value"); + free(f_offset); + free(f_count); + return NAN; + } + + r = H5Dread(dh, H5T_NATIVE_DOUBLE, ms, sh, H5P_DEFAULT, &val); + if ( r < 0 ) { + ERROR("Couldn't read value.\n"); + H5Tclose(type); + H5Dclose(dh); + return NAN; + } + + } + + free_event(ev); + free(subst_name); + H5Fclose(fh); + + return val; +} + + +static int read_peak_count(hid_t fh, char *path, int line, + int *num_peaks) +{ + + hid_t dh, sh, mh; + hsize_t size[1]; + hsize_t max_size[1]; + hsize_t offset[1], count[1]; + hsize_t m_offset[1], m_count[1], dimmh[1]; + int tw, r; + + dh = H5Dopen2(fh, path, H5P_DEFAULT); + if ( dh < 0 ) { + ERROR("Data block %s not found.\n", path); + return 1; + } + + sh = H5Dget_space(dh); + if ( sh < 0 ) { + H5Dclose(dh); + ERROR("Couldn't get dataspace for data.\n"); + return 1; + } + + if ( H5Sget_simple_extent_ndims(sh) != 1 ) { + ERROR("Data block %s has the wrong dimensionality (%i).\n", + path, H5Sget_simple_extent_ndims(sh)); + H5Sclose(sh); + H5Dclose(dh); + return 1; + } + + H5Sget_simple_extent_dims(sh, size, max_size); + + tw = size[0]; + + if ( line > tw-1 ) { + H5Sclose(sh); + H5Dclose(dh); + ERROR("Data block %s does not contain data for required event.\n", + path); + return 1; + } + + offset[0] = line; + count[0] = 1; + + r = H5Sselect_hyperslab(sh, H5S_SELECT_SET, + offset, NULL, count, NULL); + if ( r < 0 ) { + ERROR("Error selecting file dataspace " + "for data block %s\n", path); + H5Dclose(dh); + H5Sclose(sh); + return 1; + } + + m_offset[0] = 0; + m_count[0] = 1; + dimmh[0] = 1; + mh = H5Screate_simple(1, dimmh, NULL); + r = H5Sselect_hyperslab(mh, H5S_SELECT_SET, + m_offset, NULL, m_count, NULL); + if ( r < 0 ) { + ERROR("Error selecting memory dataspace " + "for data block %s\n", path); + H5Dclose(dh); + H5Sclose(sh); + H5Sclose(mh); + return 1; + } + + r = H5Dread(dh, H5T_NATIVE_INT, mh, + sh, H5P_DEFAULT, num_peaks); + if ( r < 0 ) { + ERROR("Couldn't read data for block %s, line %i\n", path, line); + H5Dclose(dh); + H5Sclose(sh); + H5Sclose(mh); + return 1; + } + + H5Dclose(dh); + H5Sclose(sh); + H5Sclose(mh); + return 0; +} + + +static float *read_hdf5_data(hid_t fh, char *path, int line) +{ + + hid_t dh, sh, mh; + hsize_t size[2]; + hsize_t max_size[2]; + hsize_t offset[2], count[2]; + hsize_t m_offset[2], m_count[2], dimmh[2]; + float *buf; + int tw, r; + + dh = H5Dopen2(fh, path, H5P_DEFAULT); + if ( dh < 0 ) { + ERROR("Data block (%s) not found.\n", path); + return NULL; + } + + sh = H5Dget_space(dh); + if ( sh < 0 ) { + H5Dclose(dh); + ERROR("Couldn't get dataspace for data.\n"); + return NULL; + } + + if ( H5Sget_simple_extent_ndims(sh) != 2 ) { + ERROR("Data block %s has the wrong dimensionality (%i).\n", + path, H5Sget_simple_extent_ndims(sh)); + H5Sclose(sh); + H5Dclose(dh); + return NULL; + } + + H5Sget_simple_extent_dims(sh, size, max_size); + + tw = size[0]; + if ( line> tw-1 ) { + H5Sclose(sh); + H5Dclose(dh); + ERROR("Data block %s does not contain data for required event.\n", + path); + return NULL; + } + + offset[0] = line; + offset[1] = 0; + count[0] = 1; + count[1] = size[1]; + + r = H5Sselect_hyperslab(sh, H5S_SELECT_SET, offset, NULL, count, NULL); + if ( r < 0 ) { + ERROR("Error selecting file dataspace " + "for data block %s\n", path); + H5Dclose(dh); + H5Sclose(sh); + return NULL; + } + + m_offset[0] = 0; + m_offset[1] = 0; + m_count[0] = 1; + m_count[1] = size[1]; + dimmh[0] = 1; + dimmh[1] = size[1]; + + mh = H5Screate_simple(2, dimmh, NULL); + r = H5Sselect_hyperslab(mh, H5S_SELECT_SET, + m_offset, NULL, m_count, NULL); + if ( r < 0 ) { + ERROR("Error selecting memory dataspace " + "for data block %s\n", path); + H5Dclose(dh); + H5Sclose(sh); + H5Sclose(mh); + return NULL; + } + + buf = malloc(size[1]*sizeof(float)); + if ( buf == NULL ) return NULL; + r = H5Dread(dh, H5T_NATIVE_FLOAT, mh, sh, H5P_DEFAULT, buf); + if ( r < 0 ) { + ERROR("Couldn't read data for block %s, line %i\n", path, line); + H5Dclose(dh); + H5Sclose(sh); + H5Sclose(mh); + return NULL; + } + + H5Dclose(dh); + H5Sclose(sh); + H5Sclose(mh); + return buf; +} + + +ImageFeatureList *image_hdf5_read_peaks_cxi(const DataTemplate *dtempl, + const char *filename, + const char *event, + int half_pixel_shift) +{ + ImageFeatureList *features; + hid_t fh; + char path_n[1024]; + char path_x[1024]; + char path_y[1024]; + char path_i[1024]; + int r; + int pk; + struct event *ev; + char *subst_name; + + int line = 0; + int num_peaks; + + float *buf_x; + float *buf_y; + float *buf_i; + + double peak_offset = half_pixel_shift ? 0.5 : 0.0; + + if ( access(filename, R_OK) == -1 ) { + ERROR("File does not exist or cannot be read: %s\n", + filename); + return NULL; + } + + fh = H5Fopen(filename, H5F_ACC_RDONLY, H5P_DEFAULT); + if ( fh < 0 ) { + ERROR("Couldn't open file: %s\n", filename); + return NULL; + } + + ev = get_event_from_event_string(event); + if ( (ev == NULL) && (event != NULL) ) { + ERROR("Invalid event identifier '%s'\n", event); + H5Fclose(fh); + return NULL; + } + + if ( ev->dim_entries == NULL ) { + ERROR("CXI format peak list format selected," + "but file has no event structure"); + return NULL; + } + line = ev->dim_entries[0]; + + subst_name = retrieve_full_path(ev, dtempl->peak_list); + free_event(ev); + if ( subst_name == NULL ) { + ERROR("Invalid peak path %s\n", subst_name); + H5Fclose(fh); + return NULL; + } + + if ( check_path_existence(fh, subst_name) == 0 ) { + ERROR("Peak path not found: %s:%s", + filename, subst_name); + free(subst_name); + H5Fclose(fh); + return NULL; + } + + snprintf(path_n, 1024, "%s/nPeaks", subst_name); + snprintf(path_x, 1024, "%s/peakXPosRaw", subst_name); + snprintf(path_y, 1024, "%s/peakYPosRaw", subst_name); + snprintf(path_i, 1024, "%s/peakTotalIntensity", subst_name); + + r = read_peak_count(fh, path_n, line, &num_peaks); + if ( r != 0 ) return NULL; + + buf_x = read_hdf5_data(fh, path_x, line); + if ( r != 0 ) return NULL; + + buf_y = read_hdf5_data(fh, path_y, line); + if ( r != 0 ) return NULL; + + buf_i = read_hdf5_data(fh, path_i, line); + if ( r != 0 ) return NULL; + + features = image_feature_list_new(); + + for ( pk=0; pk<num_peaks; pk++ ) { + + float fs, ss, val; + int pn; + + fs = buf_x[pk] + peak_offset; + ss = buf_y[pk] + peak_offset; + val = buf_i[pk]; + + if ( data_template_file_to_panel_coords(dtempl, + &fs, &ss, + &pn) ) + { + ERROR("Failed to convert %i,%i to " + "panel-relative coordinates\n", fs, ss); + } else { + image_add_feature(features, fs, ss, pn, + NULL, val, NULL); + } + + } + + return features; +} + + +ImageFeatureList *image_hdf5_read_peaks_hdf5(const DataTemplate *dtempl, + const char *filename, + const char *event, + int half_pixel_shift) +{ + hid_t fh, dh, sh; + hsize_t size[2]; + hsize_t max_size[2]; + int i; + float *buf; + herr_t r; + int tw; + struct event *ev; + char *subst_name; + ImageFeatureList *features; + double peak_offset = half_pixel_shift ? 0.5 : 0.0; + + if ( access(filename, R_OK) == -1 ) { + ERROR("File does not exist or cannot be read: %s\n", + filename); + return NULL; + } + + fh = H5Fopen(filename, H5F_ACC_RDONLY, H5P_DEFAULT); + if ( fh < 0 ) { + ERROR("Couldn't open file: %s\n", filename); + return NULL; + } + + ev = get_event_from_event_string(event); + if ( (ev == NULL) && (event != NULL) ) { + ERROR("Invalid event identifier '%s'\n", event); + H5Fclose(fh); + return NULL; + } + + subst_name = retrieve_full_path(ev, dtempl->peak_list); + free_event(ev); + if ( subst_name == NULL ) { + ERROR("Invalid peak path %s\n", subst_name); + free_event(ev); + H5Fclose(fh); + return NULL; + } + + if ( check_path_existence(fh, subst_name) == 0 ) { + ERROR("Peak path not found: %s:%s", + filename, subst_name); + free(subst_name); + H5Fclose(fh); + return NULL; + } + + dh = H5Dopen2(fh, subst_name, H5P_DEFAULT); + free(subst_name); + if ( dh < 0 ) { + ERROR("Peak list (%s) not found.\n", subst_name); + H5Fclose(fh); + return NULL; + } + + sh = H5Dget_space(dh); + if ( sh < 0 ) { + ERROR("Couldn't get dataspace for peak list.\n"); + H5Dclose(dh); + H5Fclose(fh); + return NULL; + } + + if ( H5Sget_simple_extent_ndims(sh) != 2 ) { + ERROR("Peak list has the wrong dimensionality (%i).\n", + H5Sget_simple_extent_ndims(sh)); + H5Sclose(sh); + H5Dclose(dh); + H5Fclose(fh); + return NULL; + } + + H5Sget_simple_extent_dims(sh, size, max_size); + H5Sclose(sh); + + tw = size[1]; + if ( (tw != 3) && (tw != 4) ) { + ERROR("Peak list has the wrong dimensions.\n"); + H5Dclose(dh); + H5Fclose(fh); + return NULL; + } + + buf = malloc(sizeof(float)*size[0]*size[1]); + if ( buf == NULL ) { + ERROR("Couldn't reserve memory for the peak list.\n"); + H5Dclose(dh); + H5Fclose(fh); + return NULL; + } + r = H5Dread(dh, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, + H5P_DEFAULT, buf); + if ( r < 0 ) { + ERROR("Couldn't read peak list.\n"); + H5Dclose(dh); + H5Fclose(fh); + return NULL; + } + + features = image_feature_list_new(); + if ( features == NULL ) { + ERROR("Failed to allocate peak list\n"); + H5Dclose(dh); + H5Fclose(fh); + return NULL; + } + + for ( i=0; i<size[0]; i++ ) { + + float fs, ss, val; + int pn; + + fs = buf[tw*i+0] + peak_offset; + ss = buf[tw*i+1] + peak_offset; + val = buf[tw*i+2]; + + if ( data_template_file_to_panel_coords(dtempl, + &fs, &ss, + &pn) ) + { + ERROR("Failed to convert %i,%i to " + "panel-relative coordinates\n", fs, ss); + } else { + image_add_feature(features, fs, ss, pn, + NULL, val, NULL); + } + + } + + free(buf); + H5Dclose(dh); + H5Fclose(fh); + + return features; +} + + +struct parse_params { + hid_t fh; + int path_dim; + const char *path; + struct event *curr_event; + struct event_list *ev_list; + int top_level; +}; + + +static herr_t parse_file_event_structure(hid_t loc_id, char *name, + const H5L_info_t *info, + struct parse_params *pp) + +{ + char *substituted_path; + char *ph_loc; + char *truncated_path; + htri_t check; + herr_t herrt_iterate, herrt_info; + struct H5O_info_t object_info; + + if ( !pp->top_level ) { + + int fail_push; + + fail_push = push_path_entry_to_event(pp->curr_event, name); + if ( fail_push ) { + return -1; + } + + substituted_path = event_path_placeholder_subst(name, pp->path); + + } else { + substituted_path = strdup(pp->path); + } + + if ( pp->top_level == 1 ) { + pp->top_level = 0; + } + + truncated_path = strdup(substituted_path); + ph_loc = strstr(substituted_path,"%"); + if ( ph_loc != NULL) { + truncated_path[ph_loc-substituted_path] = '\0'; + } + + herrt_iterate = 0; + herrt_info = 0; + + check = check_path_existence(pp->fh, truncated_path); + if ( check == 0 ) { + pop_path_entry_from_event(pp->curr_event); + return 0; + } else { + + herrt_info = H5Oget_info_by_name(pp->fh, truncated_path, + &object_info, H5P_DEFAULT); + if ( herrt_info < 0 ) { + free(truncated_path); + free(substituted_path); + return -1; + } + + if ( pp->curr_event->path_length == pp->path_dim + && object_info.type == H5O_TYPE_DATASET ) + { + + int fail_append; + + fail_append = append_event_to_event_list(pp->ev_list, + pp->curr_event); + if ( fail_append ) { + free(truncated_path); + free(substituted_path); + return -1; + } + + pop_path_entry_from_event(pp->curr_event); + return 0; + + } else { + + pp->path = substituted_path; + + if ( object_info.type == H5O_TYPE_GROUP ) { + + herrt_iterate = H5Literate_by_name(pp->fh, + truncated_path, H5_INDEX_NAME, + H5_ITER_NATIVE, NULL, + (H5L_iterate_t)parse_file_event_structure, + (void *)pp, H5P_DEFAULT); + } + } + } + + pop_path_entry_from_event(pp->curr_event); + + free(truncated_path); + free(substituted_path); + + return herrt_iterate; +} + + +static int fill_paths(hid_t fh, const DataTemplate *dtempl, int pi, + struct event_list *master_el) +{ + struct parse_params pparams; + struct event *empty_event; + struct event_list *panel_ev_list; + int ei; + int check; + + empty_event = initialize_event(); + panel_ev_list = initialize_event_list(); + if ( (empty_event == NULL) || (panel_ev_list == NULL) ) + { + ERROR("Failed to allocate memory for event list.\n"); + return 1; + } + + pparams.path = dtempl->panels[pi].data; + pparams.fh = fh; + pparams.path_dim = dtempl->path_dim; + pparams.curr_event = empty_event; + pparams.top_level = 1; + pparams.ev_list = panel_ev_list; + + check = parse_file_event_structure(fh, NULL, NULL, &pparams); + if ( check < 0 ) { + free_event(empty_event); + free_event_list(panel_ev_list); + return 1; + } + + for ( ei=0; ei<panel_ev_list->num_events; ei++ ) { + + int fail_add; + + fail_add = add_non_existing_event_to_event_list(master_el, + panel_ev_list->events[ei]); + if ( fail_add ) { + free_event(empty_event); + free_event_list(panel_ev_list); + return 1; + } + + } + + free_event(empty_event); + free_event_list(panel_ev_list); + + return 0; +} + + +static int check_dims(hid_t fh, struct panel_template *p, + struct event *ev, + struct event_list *events, int *global_path_dim) +{ + char *full_panel_path; + hid_t dh; + hid_t sh; + int dims; + hsize_t *size; + hsize_t *max_size; + int hsdi; + int panel_path_dim = 0; + struct dim_structure *panel_dim_structure; + + /* Get the full path for this panel in this event */ + full_panel_path = retrieve_full_path(ev, p->data); + + dh = H5Dopen2(fh, full_panel_path, H5P_DEFAULT); + if ( dh < 0 ) { + ERROR("Error opening '%s'\n", full_panel_path); + ERROR("Failed to enumerate events. " + "Check your geometry file.\n"); + return 1; + } + + sh = H5Dget_space(dh); + dims = H5Sget_simple_extent_ndims(sh); + size = malloc(dims*sizeof(hsize_t)); + max_size = malloc(dims*sizeof(hsize_t)); + if ( (size==NULL) || (max_size==NULL) ) { + ERROR("Failed to allocate memory for dimensions\n"); + return 1; + } + + dims = H5Sget_simple_extent_dims(sh, size, max_size); + + panel_dim_structure = p->dim_structure; + for ( hsdi=0; hsdi<panel_dim_structure->num_dims; hsdi++ ) { + if ( panel_dim_structure->dims[hsdi] == HYSL_PLACEHOLDER ) { + panel_path_dim = size[hsdi]; + break; + } + } + + if ( *global_path_dim == -1 ) { + + *global_path_dim = panel_path_dim; + + } else if ( panel_path_dim != *global_path_dim ) { + + ERROR("All panels must have the same number of frames\n"); + ERROR("Panel %s has %i frames in one dimension, but the first " + "panel has %i.\n", + p->name, panel_path_dim, *global_path_dim); + free(size); + free(max_size); + return 1; + } + + H5Sclose(sh); + H5Dclose(dh); + + return 0; +} + + +struct event_list *image_hdf5_expand_frames(const DataTemplate *dtempl, + const char *filename) +{ + struct event_list *master_el; + hid_t fh; + + fh = H5Fopen(filename, H5F_ACC_RDONLY, H5P_DEFAULT); + if ( fh < 0 ) { + ERROR("Couldn't open file '%s'\n", filename); + return NULL; + } + + master_el = initialize_event_list(); + if ( master_el == NULL ) { + ERROR("Failed to allocate event list.\n"); + H5Fclose(fh); + return NULL; + } + + /* First expand any placeholders in the HDF5 paths */ + if ( dtempl->path_dim != 0 ) { + int pi; + for ( pi=0; pi<dtempl->n_panels; pi++ ) { + if ( fill_paths(fh, dtempl, pi, master_el) ) { + ERROR("Failed to enumerate paths.\n"); + H5Fclose(fh); + return NULL; + } + } + } + + /* Now enumerate the placeholder dimensions */ + if ( dtempl->dim_dim > 0 ) { + + struct event_list *master_el_with_dims; + int evi; + + /* If there were no HDF5 path placeholders, add a dummy event */ + if ( master_el->num_events == 0 ) { + struct event *empty_ev; + empty_ev = initialize_event(); + append_event_to_event_list(master_el, empty_ev); + free(empty_ev); + } + + master_el_with_dims = initialize_event_list(); + + /* For each event so far, expand the dimensions */ + for ( evi=0; evi<master_el->num_events; evi++ ) { + + int pi; + int global_path_dim = -1; + int mlwd; + + /* Check the dimensionality of each panel */ + for ( pi=0; pi<dtempl->n_panels; pi++ ) { + if ( check_dims(fh, &dtempl->panels[pi], + master_el->events[evi], + master_el_with_dims, + &global_path_dim) ) + { + ERROR("Failed to enumerate dims.\n"); + H5Fclose(fh); + return NULL; + } + } + + /* Add this dimensionality to all events */ + for ( mlwd=0; mlwd<global_path_dim; mlwd++ ) { + + struct event *mlwd_ev; + + mlwd_ev = copy_event(master_el->events[evi]); + push_dim_entry_to_event(mlwd_ev, mlwd); + append_event_to_event_list(master_el_with_dims, + mlwd_ev); + free_event(mlwd_ev); + } + + } + + free_event_list(master_el); + H5Fclose(fh); + return master_el_with_dims; + + } else { + + H5Fclose(fh); + return master_el; + + } +} |