void HDF5Output::flush() const {
hsize_t n = buffer.size();
if (n == 0)
return;
hid_t file_space = H5Dget_space(dset);
hsize_t count = H5Sget_simple_extent_npoints(file_space);
// resize dataset
hsize_t new_size[RANK] = {count + n};
H5Dset_extent(dset, new_size);
// get updated filespace
H5Sclose(file_space);
file_space = H5Dget_space(dset);
hsize_t offset[RANK] = {count};
hsize_t cnt[RANK] = {n};
H5Sselect_hyperslab(file_space, H5S_SELECT_SET, offset, NULL, cnt, NULL);
hid_t mspace_id = H5Screate_simple(RANK, cnt, NULL);
H5Dwrite(dset, sid, mspace_id, file_space, H5P_DEFAULT, buffer.data());
H5Sclose(mspace_id);
H5Sclose(file_space);
buffer.clear();
}
// JRC: This fat interface may not scale? What about
// scalar attributes?
herr_t VsH5Attribute::getDoubleVectorValue(std::vector<double>* dvals) {
herr_t err = 0;
size_t npoints;
hid_t atype = H5Aget_type(getId());
H5T_class_t type = H5Tget_class(atype);
hid_t aspace = H5Aget_space(getId());
size_t rank = H5Sget_simple_extent_ndims(aspace);
if (type != H5T_FLOAT) {
VsLog::warningLog() <<"VsH5Attribute::getDoubleVectorValue() - Requested attribute " <<getShortName()
<<" is not a floating point vector." <<std::endl;
dvals->resize(0);
return -1;
}
if (rank == 0) {
dvals->resize(1);
double v;
err = H5Aread(getId(), H5T_NATIVE_DOUBLE, &v);
(*dvals)[0] = v;
return err;
}
// rank>0
npoints = H5Sget_simple_extent_npoints(aspace);
double* v = new double[npoints];
err = H5Aread(getId(), H5T_NATIVE_DOUBLE, v);
dvals->resize(npoints);
for (size_t i = 0; i<npoints; ++i) {
(*dvals)[i] = v[i];
}
delete [] v;
return err;
}
void read_hdf(const std::string &filename, double* &data, int &m_rows, int &m_cols){
hid_t file_id, dataset_id, space_id, property_id;
herr_t status;
//Create a new file using the default properties.
file_id = H5Fopen (filename.c_str(), H5F_ACC_RDONLY, H5P_DEFAULT);
dataset_id = H5Dopen(file_id, "x", H5P_DEFAULT);
space_id = H5Dget_space(dataset_id);
int length = H5Sget_simple_extent_npoints(space_id);
hsize_t dims[2];
hsize_t mdims[2];
status = H5Sget_simple_extent_dims(space_id,dims,mdims);
m_rows = dims[0];
m_cols = dims[1];
data = new double[length];
status = H5Dread(dataset_id, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL,
H5P_DEFAULT, data);
status = H5Sclose(space_id);
status = H5Dclose(dataset_id);
status = H5Fclose(file_id);
}
/**
Append a vector to a specified dataset and return the error status
of the write operation. */
herr_t HDF5DataWriter::appendToDataset(hid_t dataset_id, const vector< double >& data)
{
herr_t status;
if (dataset_id < 0){
return -1;
}
hid_t filespace = H5Dget_space(dataset_id);
if (filespace < 0){
return -1;
}
if (data.size() == 0){
return 0;
}
hsize_t size = H5Sget_simple_extent_npoints(filespace) + data.size();
status = H5Dset_extent(dataset_id, &size);
if (status < 0){
return status;
}
filespace = H5Dget_space(dataset_id);
hsize_t size_increment = data.size();
hid_t memspace = H5Screate_simple(1, &size_increment, NULL);
hsize_t start = size - data.size();
H5Sselect_hyperslab(filespace, H5S_SELECT_SET, &start, NULL, &size_increment, NULL);
status = H5Dwrite(dataset_id, H5T_NATIVE_DOUBLE, memspace, filespace, H5P_DEFAULT, &data[0]);
return status;
}
Matrix read_hdf(const std::string &filename){
hid_t file_id, dataset_id, space_id, property_id;
herr_t status;
//Create a new file using the default properties.
file_id = H5Fopen (filename.c_str(), H5F_ACC_RDONLY, H5P_DEFAULT);
dataset_id = H5Dopen(file_id, "x", H5P_DEFAULT);
space_id = H5Dget_space(dataset_id);
int length = H5Sget_simple_extent_npoints(space_id);
hsize_t dims[2];
hsize_t mdims[2];
status = H5Sget_simple_extent_dims(space_id,dims,mdims);
Matrix tmp(dims[0],dims[1]);
status = H5Dread(dataset_id, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL,
H5P_DEFAULT, tmp.ptr());
status = H5Sclose(space_id);
status = H5Dclose(dataset_id);
status = H5Fclose(file_id);
// std::cout << tmp.ptr() << std::endl;
return tmp;
}
int_f
nh5sget_simple_extent_npoints_c ( hid_t_f *space_id , hsize_t_f *npoints )
{
int ret_value = 0;
hid_t c_space_id;
hsize_t c_npoints;
c_space_id = *space_id;
c_npoints = H5Sget_simple_extent_npoints(c_space_id);
if ( c_npoints == 0 ) ret_value = -1;
*npoints = (hsize_t_f)c_npoints;
return ret_value;
}
void
ReadStringsT( hid_t iParent,
const std::string &iAttrName,
size_t iNumStrings,
StringT *oStrings )
{
ABCA_ASSERT( iParent >= 0, "Invalid parent in ReadStringsT" );
// Open the attribute.
hid_t attrId = H5Aopen( iParent, iAttrName.c_str(), H5P_DEFAULT );
ABCA_ASSERT( attrId >= 0,
"Couldn't open attribute named: " << iAttrName );
AttrCloser attrCloser( attrId );
// Checking code.
{
hid_t attrFtype = H5Aget_type( attrId );
DtypeCloser dtypeCloser( attrFtype );
hid_t nativeDtype = GetNativeDtype<CharT>();
ABCA_ASSERT( H5Tget_class( attrFtype ) ==
H5Tget_class( nativeDtype ) &&
H5Tget_sign( attrFtype ) ==
H5Tget_sign( nativeDtype ),
"Invalid datatype for stringT" );
}
hid_t attrSpace = H5Aget_space( attrId );
ABCA_ASSERT( attrSpace >= 0,
"Couldn't get dataspace for attribute: " << iAttrName );
DspaceCloser dspaceCloser( attrSpace );
hssize_t numPoints = H5Sget_simple_extent_npoints( attrSpace );
ABCA_ASSERT( numPoints > 0,
"Degenerate string dimensions in ReadStringsT" );
// Create temporary char storage buffer.
std::vector<CharT> charStorage( ( size_t )( 1 + numPoints ),
( CharT )0 );
// Read into it.
herr_t status = H5Aread( attrId, GetNativeDtype<CharT>(),
( void * )&charStorage.front() );
ABCA_ASSERT( status >= 0, "Couldn't read from attribute: " << iAttrName );
// Extract 'em.
ExtractStrings( oStrings, ( const CharT * )&charStorage.front(),
1 + numPoints, iNumStrings );
}
//-*****************************************************************************
void
ReadTimeSamples( hid_t iParent,
std::vector < AbcA::TimeSamplingPtr > & oTimeSamples )
{
oTimeSamples.clear();
// add the intrinsic default sampling
AbcA::TimeSamplingPtr ts( new AbcA::TimeSampling() );
oTimeSamples.push_back( ts );
uint32_t i = 1;
AbcA::TimeSamplingType tst;
std::string tstname = "1";
// keep trying to read till we can't find anymore
while ( ReadTimeSamplingType( iParent, tstname, tst ) )
{
// try to open the time samples attribute
std::string timeName = tstname + ".time";
hid_t aid = H5Aopen( iParent, timeName.c_str(), H5P_DEFAULT );
ABCA_ASSERT( aid >= 0,
"Couldn't open time samples named: " << timeName );
AttrCloser attrCloser( aid );
// figure out how big it is
hid_t sid = H5Aget_space( aid );
ABCA_ASSERT( sid >= 0,
"Couldn't get dataspace for time samples: " << timeName );
DspaceCloser dspaceCloser( sid );
hssize_t numPoints = H5Sget_simple_extent_npoints( sid );
ABCA_ASSERT( numPoints > 0, "No time samples data: " << timeName );
std::vector < chrono_t > times(numPoints);
// do the read
herr_t status = H5Aread( aid, H5T_NATIVE_DOUBLE, &(times.front()) );
ABCA_ASSERT( status >= 0, "Can't read time samples: " << timeName );
// create the TimeSampling and add it to our vector
ts.reset( new AbcA::TimeSampling(tst, times) );
oTimeSamples.push_back( ts );
// increment to try and read the next one
i++;
std::stringstream strm;
strm << i;
tstname = strm.str();
}
}
int main(int argc, char ** argv)
{
if(argc < 2){
std::cout << "please specify a file" << std::endl;
return 0;
}
std::string filename = argv[1];
herr_t status;
//Create a new file using the default properties.
hid_t file_id = H5Fopen (filename.c_str(), H5F_ACC_RDONLY, H5P_DEFAULT);
hid_t dataset_id = H5Dopen(file_id, "DATASET", H5P_DEFAULT);
hid_t space_id = H5Dget_space(dataset_id);
int length = H5Sget_simple_extent_npoints(space_id);
hsize_t dims[2];
hsize_t mdims[2];
status = H5Sget_simple_extent_dims(space_id,dims,mdims);
int m_rows = dims[0];
int m_cols = dims[1];
double * data = new double[m_rows*m_cols];
status = H5Dread(dataset_id, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, H5P_DEFAULT, data);
status = H5Sclose(space_id);
status = H5Dclose(dataset_id);
status = H5Fclose(file_id);
// Print to screen
for(int r=0; r<m_rows; ++r){
for(int c=0; c<m_cols; ++c){
std::cout << std::setfill (' ') << std::setw (8);
std::cout << data[c + r*m_cols];
}
std::cout << std::endl;
}
delete [] data;
return 0;
}
// Extract information from HDF5 file
void get_data(std::string data_path, std::string dataset_name, std::vector<double> &data_out){
// Declare variables
const char *fname = data_path.c_str();
hid_t file_id , dataset_id , dataspace_id , file_dataspace_id;
hsize_t* dims;
hssize_t num_elem;
int rank;
int ndims;
// Open existing HDF5 file
file_id = H5Fopen(fname , H5F_ACC_RDONLY , H5P_DEFAULT);
// Open existing dataset
dataset_id = H5Dopen(file_id , dataset_name.c_str(), H5P_DEFAULT);
// Determine dataset parameters
file_dataspace_id = H5Dget_space(dataset_id);
rank = H5Sget_simple_extent_ndims(file_dataspace_id);
dims = (hsize_t*) malloc(rank *sizeof(hsize_t));
ndims = H5Sget_simple_extent_dims(file_dataspace_id, dims, NULL);
//std::cout << "rank: " << std::to_string(rank) << std::endl;
// Allocate matrix
num_elem = H5Sget_simple_extent_npoints(file_dataspace_id);
std::vector<double> data_out_tmp(num_elem);
// = (double*)malloc(num_elem *sizeof(double));
//std::cout << "num_elem: " << std::to_string(num_elem) << std::endl;
// Create dataspace
dataspace_id = H5Screate_simple(rank , dims , NULL);
// Read matrix data from file
H5Dread(dataset_id, H5T_NATIVE_DOUBLE, dataspace_id, file_dataspace_id , H5P_DEFAULT , &data_out_tmp[0]);
data_out = data_out_tmp;
// Release resources and close file
H5Dclose(dataset_id);
H5Sclose(dataspace_id);
H5Sclose(file_dataspace_id);
H5Fclose(file_id);
free(dims);
}
// JRC: This fat interface may not scale? What about
// scalar attributes?
herr_t VsH5Attribute::getIntVectorValue(std::vector<int>* ivals) {
herr_t err;
size_t npoints;
hid_t atype = H5Aget_type(getId());
H5T_class_t type = H5Tget_class(atype);
hid_t aspace = H5Aget_space(getId());
size_t rank = H5Sget_simple_extent_ndims(aspace);
if (type != H5T_INTEGER) {
VsLog::warningLog() <<"VsH5Attribute::getIntVectorValue() - Requested attribute " <<getShortName()
<<" is not an integer vector." <<std::endl;
ivals->resize(0);
return -1;
}
if (rank == 0) {
ivals->resize(1);
int v;
// err = H5Aread(id, atype, &v);
err = H5Aread(getId(), H5T_NATIVE_INT, &v);
(*ivals)[0] = v;
return err;
}
// rank>0
npoints = H5Sget_simple_extent_npoints(aspace);
int* v = new int[npoints];
err = H5Aread(getId(), H5T_NATIVE_INT, v);
ivals->resize(npoints);
for (size_t i = 0; i<npoints; ++i) {
(*ivals)[i] = v[i];
}
delete [] v;
return err;
}
void read(const std::string &filename, std::vector<int> &data)
{
hid_t file_id, dataset_id, space_id;
herr_t status;
file_id = H5Fopen(filename.c_str(), H5F_ACC_RDONLY, H5P_DEFAULT);
dataset_id = H5Dopen(file_id, "DATASET", H5P_DEFAULT);
space_id = H5Dget_space(dataset_id);
int length = H5Sget_simple_extent_npoints(space_id);
int * image = new int[length];
status = H5Dread(dataset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, image);
// Copy back to vector
data.resize(length);
for(int i=0; i<length; ++i){
data[i] = image[i];
}
delete [] image;
status = H5Sclose(space_id);
status = H5Dclose(dataset_id);
status = H5Fclose(file_id);
}
herr_t H5IMget_palette_info( hid_t loc_id,
const char *image_name,
int pal_number,
hsize_t *pal_dims )
{
hid_t did;
int has_pal;
hid_t atid=-1;
hid_t aid;
hid_t asid=-1;
hssize_t n_refs;
hsize_t dim_ref;
hobj_ref_t *refbuf; /* buffer to read references */
hid_t pal_id;
hid_t pal_space_id;
hsize_t pal_maxdims[2];
/* check the arguments */
if (image_name == NULL)
return -1;
/* Open the dataset. */
if((did = H5Dopen2(loc_id, image_name, H5P_DEFAULT)) < 0)
return -1;
/* Try to find the attribute "PALETTE" on the >>image<< dataset */
has_pal = H5IM_find_palette(did);
if(has_pal == 1)
{
if((aid = H5Aopen(did, "PALETTE", H5P_DEFAULT)) < 0)
goto out;
if((atid = H5Aget_type(aid)) < 0)
goto out;
if(H5Tget_class(atid) < 0)
goto out;
/* Get the reference(s) */
if((asid = H5Aget_space(aid)) < 0)
goto out;
n_refs = H5Sget_simple_extent_npoints(asid);
dim_ref = (hsize_t)n_refs;
refbuf = (hobj_ref_t*)HDmalloc( sizeof(hobj_ref_t) * (size_t)dim_ref );
if ( H5Aread( aid, atid, refbuf ) < 0)
goto out;
/* Get the actual palette */
if ( (pal_id = H5Rdereference( did, H5R_OBJECT, &refbuf[pal_number] )) < 0)
goto out;
if ( (pal_space_id = H5Dget_space( pal_id )) < 0)
goto out;
if ( H5Sget_simple_extent_ndims( pal_space_id ) < 0)
goto out;
if ( H5Sget_simple_extent_dims( pal_space_id, pal_dims, pal_maxdims ) < 0)
goto out;
/* close */
if (H5Dclose(pal_id)<0)
goto out;
if ( H5Sclose( pal_space_id ) < 0)
goto out;
if ( H5Sclose( asid ) < 0)
goto out;
if ( H5Tclose( atid ) < 0)
goto out;
if ( H5Aclose( aid ) < 0)
goto out;
HDfree( refbuf );
}
/* Close the image dataset. */
if ( H5Dclose( did ) < 0)
return -1;
return 0;
out:
H5Dclose( did );
H5Sclose( asid );
H5Tclose( atid );
H5Aclose( aid );
return -1;
}
/*------------------------------------------------------------------------- * Function: H5IM_get_palette * * Purpose: private function that reads a palette to memory type TID * * Return: Success: 0, Failure: -1 * * Programmer: Pedro Vicente Nunes, [email protected] * * Date: May 10, 2005 * * Comments: * This function allows reading of an 8bit palette from disk disk * to memory type TID * The memory datatype can be H5T_NATIVE_INT or H5T_NATIVE_UCHAR currently. * the H5T_NATIVE_INT is supposed to be called from * the FORTRAN interface where the image buffer is defined as type "integer" * * Comments: * based on HDF5 Image and Palette Specification * http://hdf.ncsa.uiuc.edu/HDF5/H5Image/ImageSpec.html * * Modifications: * *------------------------------------------------------------------------- */ herr_t H5IM_get_palette(hid_t loc_id, const char *image_name, int pal_number, hid_t tid, void *pal_data) { hid_t image_id; int has_pal; hid_t attr_type; hid_t attr_id; hid_t attr_space_id; hid_t attr_class; hssize_t n_refs; hsize_t dim_ref; hobj_ref_t *refbuf; /* buffer to read references */ hid_t pal_id; /* Open the dataset. */ if((image_id = H5Dopen2(loc_id, image_name, H5P_DEFAULT)) < 0) return -1; /* Try to find the attribute "PALETTE" on the >>image<< dataset */ has_pal = H5IM_find_palette(image_id); if(has_pal == 1) { if((attr_id = H5Aopen(image_id, "PALETTE", H5P_DEFAULT)) < 0) goto out; if((attr_type = H5Aget_type(attr_id)) < 0) goto out; if((attr_class = H5Tget_class(attr_type)) < 0) goto out; /* Check if it is really a reference */ if(attr_class == H5T_REFERENCE) { /* Get the reference(s) */ if((attr_space_id = H5Aget_space(attr_id)) < 0) goto out; n_refs = H5Sget_simple_extent_npoints(attr_space_id); dim_ref = n_refs; refbuf = malloc(sizeof(hobj_ref_t) * (int)dim_ref); if(H5Aread(attr_id, attr_type, refbuf) < 0) goto out; /* Get the palette id */ if((pal_id = H5Rdereference(image_id, H5R_OBJECT, &refbuf[pal_number])) < 0) goto out; /* Read the palette dataset using the memory type TID */ if(H5Dread(pal_id, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, pal_data) < 0) goto out; if(H5Sclose(attr_space_id) < 0) goto out; /* close the dereferenced dataset */ if(H5Dclose(pal_id) < 0) goto out; free(refbuf); } /* H5T_REFERENCE */ if(H5Tclose(attr_type) < 0) goto out; /* Close the attribute. */ if(H5Aclose(attr_id) < 0) goto out; } /* Close the image dataset. */ if(H5Dclose(image_id) < 0) return -1; return 0; out: H5Dclose(image_id); return -1; }
herr_t H5IMget_palette( hid_t loc_id,
const char *image_name,
int pal_number,
unsigned char *pal_data )
{
hid_t did;
int has_pal;
hid_t atid=-1;
hid_t aid;
hid_t asid=-1;
hssize_t n_refs;
hsize_t dim_ref;
hobj_ref_t *refbuf; /* buffer to read references */
hid_t pal_id;
/* Open the dataset. */
if((did = H5Dopen2(loc_id, image_name, H5P_DEFAULT)) < 0)
return -1;
/* Try to find the attribute "PALETTE" on the >>image<< dataset */
has_pal = H5IM_find_palette(did);
if(has_pal == 1 )
{
if((aid = H5Aopen(did, "PALETTE", H5P_DEFAULT)) < 0)
goto out;
if((atid = H5Aget_type(aid)) < 0)
goto out;
if(H5Tget_class(atid) < 0)
goto out;
/* Get the reference(s) */
if((asid = H5Aget_space(aid)) < 0)
goto out;
n_refs = H5Sget_simple_extent_npoints(asid);
dim_ref = n_refs;
refbuf = (hobj_ref_t*)malloc( sizeof(hobj_ref_t) * (int)dim_ref );
if ( H5Aread( aid, atid, refbuf ) < 0)
goto out;
/* Get the palette id */
if ( (pal_id = H5Rdereference( did, H5R_OBJECT, &refbuf[pal_number] )) < 0)
goto out;
/* Read the palette dataset */
if ( H5Dread( pal_id, H5Dget_type(pal_id), H5S_ALL, H5S_ALL, H5P_DEFAULT, pal_data ) < 0)
goto out;
/* close */
if (H5Dclose(pal_id)<0)
goto out;
if ( H5Sclose( asid ) < 0)
goto out;
if ( H5Tclose( atid ) < 0)
goto out;
if ( H5Aclose( aid ) < 0)
goto out;
free( refbuf );
}
/* Close the image dataset. */
if ( H5Dclose( did ) < 0)
return -1;
return 0;
out:
H5Dclose( did );
H5Sclose( asid );
H5Tclose( atid );
H5Aclose( aid );
return -1;
}
/*
Read noise correlations from a file into a noise object.
Only read noise related to channels which are in the noise object's map,
so be sure to call SetChannelIndex before reading correlations into it.
*/
void ReadNoiseCorrelations(std::string filename, NoiseCorrelations& noise)
{
hid_t fileID = H5Fopen(filename.c_str(), H5F_ACC_RDONLY, H5P_DEFAULT);
// Verify this is version 1.
{
unsigned char version;
hid_t attID = H5Aopen(fileID, "version", H5P_DEFAULT);
H5Aread(attID, H5T_NATIVE_UCHAR, reinterpret_cast<void*>(version));
H5Aclose(attID);
assert(version == 1);
}
// I have one index for the in-memory noise matrices; build another for the file.
MapIndexHandler<unsigned char> FileChannelMap = HDF5Helper::ReadMapFromAttribute(fileID, "channel_list");
for(size_t i = 0; i < noise.GetNoiseBlockIndex().MaxIndex(); i++) {
// Verify that the file has correlation information for every channel we're requesting.
assert(FileChannelMap.HasKey(noise.GetNoiseBlockIndex().KeyForIndex(i).second));
}
NoiseCorrelations::NoiseBlockIndexT FileBlockIndex(RangeIndexHandler<unsigned char>(0, 2),
FileChannelMap);
// Retrieve the actual noise information.
std::vector<double> PackedArray;
for(size_t f = 0; f < 1024; f++) {
NoiseMatrix& mat = noise.GetMatrixForIndex(f);
const NoiseCorrelations::NoiseBlockIndexT& NoiseBlockIndex = noise.GetNoiseBlockIndex();
assert(NoiseBlockIndex.MaxIndex() % 2 == 0 and NoiseBlockIndex.MaxIndex() > 0);
// Create the name for this dataset.
std::ostringstream strstream;
strstream << "/noise_corr_" << std::setfill('0') << std::setw(4) << f;
std::string dataset_name = strstream.str();
// Get data from file.
hid_t datasetID = H5Dopen2(fileID, dataset_name.c_str(), H5P_DEFAULT);
hid_t dataspaceID = H5Dget_space(datasetID);
size_t PackedSize = ExpectedPackedSize(f, FileBlockIndex.MaxIndex());
assert(PackedSize == H5Sget_simple_extent_npoints(dataspaceID));
PackedArray.resize(PackedSize);
H5Dread(datasetID, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, H5P_DEFAULT,
reinterpret_cast<void*>(&PackedArray[0]));
// Fill noise matrix from packed array.
for(size_t i = 0; i < NoiseBlockIndex.MaxIndex(); i++) {
size_t rowInFile = FileBlockIndex.IndexForKey(NoiseBlockIndex.KeyForIndex(i));
for(size_t j = i; j < NoiseBlockIndex.MaxIndex(); j++) {
size_t colInFile = FileBlockIndex.IndexForKey(NoiseBlockIndex.KeyForIndex(j));
std::pair<size_t, bool> packed_loc = PackedArrayIndexFor(f, rowInFile, colInFile, FileBlockIndex);
if(packed_loc.first == size_t(-1)) mat.GetCorrByIndex(i, j) = 0;
else {
assert(packed_loc.first < PackedArray.size());
if(packed_loc.second) mat.GetCorrByIndex(i, j) = -PackedArray[packed_loc.first];
else mat.GetCorrByIndex(i, j) = PackedArray[packed_loc.first];
}
}
}
// Release HDF5 file resources.
H5Sclose(dataspaceID);
H5Dclose(datasetID);
}
assert(H5Fget_obj_count(fileID, H5F_OBJ_ALL) == 1); // The file should be the only object left.
H5Fclose(fileID);
}
//-*****************************************************************************
ArImpl::ArImpl( const std::string &iFileName,
AbcA::ReadArraySampleCachePtr iCache,
const bool iCacheHierarchy )
: m_fileName( iFileName )
, m_file( -1 )
, m_readArraySampleCache( iCache )
{
// OPEN THE FILE!
htri_t exi = H5Fis_hdf5( m_fileName.c_str() );
ABCA_ASSERT( exi == 1, "Nonexistent or not an Alembic file: "
<< m_fileName );
m_file = H5Fopen( m_fileName.c_str(), H5F_ACC_RDONLY, H5P_DEFAULT );
ABCA_ASSERT( m_file >= 0,
"Could not open file: " << m_fileName );
// get the version using HDF5 native calls
int version = -INT_MAX;
if (H5Aexists(m_file, "abc_version"))
{
size_t numRead = 0;
ReadSmallArray(m_file, "abc_version", H5T_STD_I32LE, H5T_NATIVE_INT32,
1, numRead, &version);
}
ABCA_ASSERT(version >= -8 && version <= ALEMBIC_HDF5_FILE_VERSION,
"Unsupported file version detected: " << version);
// if it isn't there, it's pre 1.0
int fileVersion = 9999;
if (H5Aexists( m_file, "abc_release_version" ))
{
size_t numRead = 0;
ReadSmallArray( m_file, "abc_release_version", H5T_STD_I32LE,
H5T_NATIVE_INT32, 1, numRead, &fileVersion );
}
m_archiveVersion = fileVersion;
HDF5HierarchyReader reader( m_file, m_H5H, iCacheHierarchy );
H5Node node = m_H5H.createNode( m_file );
H5Node abcRoot = OpenGroup( node, "ABC" );
AbcA::MetaData metaData;
ReadMetaData( abcRoot, ".prop.meta", metaData );
m_header.reset( new AbcA::ObjectHeader( "ABC", "/", metaData ) );
m_data.reset( new OrData( m_header, node, m_archiveVersion ) );
CloseObject( abcRoot );
ReadTimeSamples( m_file, m_timeSamples );
if ( H5Aexists( m_file, "abc_max_samples" ) )
{
hid_t aid = H5Aopen( m_file, "abc_max_samples", H5P_DEFAULT );
if ( aid < 0 )
{
return;
}
AttrCloser attrCloser( aid );
// figure out how big it is
hid_t sid = H5Aget_space( aid );
if ( sid < 0 )
{
return;
}
DspaceCloser dspaceCloser( sid );
hssize_t numPoints = H5Sget_simple_extent_npoints( sid );
if ( numPoints < 1 )
{
return;
}
m_maxSamples.resize( numPoints );
// do the read
H5Aread( aid, H5T_NATIVE_LLONG, &( m_maxSamples.front() ) );
}
}
//-*****************************************************************************
AbcA::ArraySamplePtr
ReadArray( AbcA::ReadArraySampleCachePtr iCache,
hid_t iParent,
const std::string &iName,
const AbcA::DataType &iDataType,
hid_t iFileType,
hid_t iNativeType )
{
// Dispatch string stuff.
if ( iDataType.getPod() == kStringPOD )
{
return ReadStringArray( iCache, iParent, iName, iDataType );
}
else if ( iDataType.getPod() == kWstringPOD )
{
return ReadWstringArray( iCache, iParent, iName, iDataType );
}
assert( iDataType.getPod() != kStringPOD &&
iDataType.getPod() != kWstringPOD );
// Open the data set.
hid_t dsetId = H5Dopen( iParent, iName.c_str(), H5P_DEFAULT );
ABCA_ASSERT( dsetId >= 0, "Cannot open dataset: " << iName );
DsetCloser dsetCloser( dsetId );
// Read the data space.
hid_t dspaceId = H5Dget_space( dsetId );
ABCA_ASSERT( dspaceId >= 0, "Could not get dataspace for dataSet: "
<< iName );
DspaceCloser dspaceCloser( dspaceId );
AbcA::ArraySample::Key key;
bool foundDigest = false;
// if we are caching, get the key and see if it is being used
if ( iCache )
{
key.origPOD = iDataType.getPod();
key.readPOD = key.origPOD;
key.numBytes = Util::PODNumBytes( key.readPOD ) *
H5Sget_simple_extent_npoints( dspaceId );
foundDigest = ReadKey( dsetId, "key", key );
AbcA::ReadArraySampleID found = iCache->find( key );
if ( found )
{
AbcA::ArraySamplePtr ret = found.getSample();
assert( ret );
if ( ret->getDataType().getPod() != iDataType.getPod() )
{
ABCA_THROW( "ERROR: Read data type for dset: " << iName
<< ": " << ret->getDataType()
<< " does not match expected data type: "
<< iDataType );
}
// Got it!
return ret;
}
}
// Okay, we haven't found it in a cache.
// Read the data type.
hid_t dtypeId = H5Dget_type( dsetId );
ABCA_ASSERT( dtypeId >= 0, "Could not get datatype for dataSet: "
<< iName );
DtypeCloser dtypeCloser( dtypeId );
ABCA_ASSERT( EquivalentDatatypes( iFileType, dtypeId ),
"File DataType clash for array dataset: "
<< iName );
AbcA::ArraySamplePtr ret;
H5S_class_t dspaceClass = H5Sget_simple_extent_type( dspaceId );
if ( dspaceClass == H5S_SIMPLE )
{
// Get the dimensions
int rank = H5Sget_simple_extent_ndims( dspaceId );
ABCA_ASSERT( rank == 1,
"H5Sget_simple_extent_ndims() must be 1." );
hsize_t hdim = 0;
rank = H5Sget_simple_extent_dims( dspaceId, &hdim, NULL );
Dimensions dims;
std::string dimName = iName + ".dims";
if ( H5Aexists( iParent, dimName.c_str() ) )
{
ReadDimensions( iParent, dimName, dims );
}
else
{
dims.setRank(1);
dims[0] = hdim / iDataType.getExtent();
}
ABCA_ASSERT( dims.numPoints() > 0,
"Degenerate dims in Dataset read" );
// Create a buffer into which we shall read.
ret = AbcA::AllocateArraySample( iDataType, dims );
assert( ret->getData() );
// And... read into it.
herr_t status = H5Dread( dsetId, iNativeType,
H5S_ALL, H5S_ALL, H5P_DEFAULT,
const_cast<void*>( ret->getData() ) );
ABCA_ASSERT( status >= 0, "H5Dread() failed." );
}
else if ( dspaceClass == H5S_NULL )
{
Dimensions dims;
std::string dimName = iName + ".dims";
if ( H5Aexists( iParent, dimName.c_str() ) )
{
ReadDimensions( iParent, dimName, dims );
ABCA_ASSERT( dims.rank() > 0,
"Degenerate rank in Dataset read" );
// Num points should be zero here.
ABCA_ASSERT( dims.numPoints() == 0,
"Expecting zero points in dimensions" );
}
else
{
dims.setRank(1);
dims[0] = 0;
}
ret = AbcA::AllocateArraySample( iDataType, dims );
}
else
{
ABCA_THROW( "Unexpected scalar dataspace encountered." );
}
// Store if there is a cache.
if ( foundDigest && iCache )
{
AbcA::ReadArraySampleID stored = iCache->store( key, ret );
if ( stored )
{
return stored.getSample();
}
}
// Otherwise, just leave! ArraySamplePtr returned by AllocateArraySample
// already has fancy-dan deleter built in.
// I REALLY LOVE SMART PTRS.
return ret;
}
//////////////////////////////////////////////////////////////////////////////////////////
//HaloTrees Append Datasets Group//
//////////////////////////////////////////////////////////////////////////////////////////
void HaloTreesGroupDataAppend(hid_t file_out_hdf5, MergerTree **halo, int tree_levels, int nb_nodes)
{
int i, j, count;
int rank, nb_elements;
int *nodeIndex, *nodeHost, *nodeDescendent;
hid_t dataset, dataspace, cparams, filespace;
hsize_t newdims[1], finaldims[1], newdims2[2], finaldims2[2], offset[1], offset2[2];
newdims[0] = nb_nodes;
newdims2[0] = nb_nodes; newdims2[1] = 3;
double *time, *expansionFactor, *redshift;
double *nodeMass;
double nodePosition[nb_nodes][3], nodeVelocity[nb_nodes][3]; //for some reason dynamic memory allocation don't work with hdf5 2D datasets
nodeIndex = (int *)malloc(nb_nodes*sizeof(int));
nodeDescendent = (int *)malloc(nb_nodes*sizeof(int));
nodeMass = (double *)malloc(nb_nodes*sizeof(double));
expansionFactor = (double *)malloc(nb_nodes*sizeof(double));
redshift = (double *)malloc(nb_nodes*sizeof(double));
time = (double *)malloc(nb_nodes*sizeof(double));
for(i = 0, count = 0; i < tree_levels; i++)
for(j = 0; j < halo[i][0].snapshot.nb_halos; j++)
{
nodeIndex[count] = halo[i][j].idAlias;
nodeMass[count] = halo[i][j].mvir;
nodeDescendent[count] = halo[i][j].son_idAlias;
expansionFactor[count] = halo[i][j].sfactor;
time[count] = halo[i][j].age;
redshift[count] = 1.0/halo[i][j].sfactor - 1.0;
nodePosition[count][0] = halo[i][j].position[0];
nodePosition[count][1] = halo[i][j].position[1];
nodePosition[count][2] = halo[i][j].position[2];
count++;
}
/* hostIndex Dataset */
dataset = H5Dopen (file_out_hdf5, "/haloTrees/hostIndex", H5P_DEFAULT);
filespace = H5Dget_space (dataset);
rank = H5Sget_simple_extent_ndims (filespace);
nb_elements = H5Sget_simple_extent_npoints( filespace );
finaldims[0] = nb_elements+10;// + nb_nodes-1000;
finaldims2[0] = nb_elements + nb_nodes; finaldims2[1] = 3;
offset[0] = nb_elements;
offset2[0] = nb_elements; offset2[1] = 0;
printf("finaldims:%d\n",(int)finaldims[0]);
H5Dextend(dataset, finaldims);
filespace = H5Dget_space( dataset );
H5Sselect_hyperslab (filespace, H5S_SELECT_SET, offset, NULL, newdims, NULL);
dataspace = H5Screate_simple (1, newdims, NULL);
//H5Dwrite (dataset, H5T_NATIVE_INT, dataspace, filespace, H5P_DEFAULT, nodeIndex);
H5Sclose(dataspace);
H5Sclose(filespace);
H5Dclose(dataset);
/* nodeIndex Dataset */
/* dataset = H5Dopen (file_out_hdf5, "/haloTrees/nodeIndex", H5P_DEFAULT); */
/* H5Dextend(dataset, finaldims); */
/* filespace = H5Dget_space( dataset ); */
/* H5Sselect_hyperslab (filespace, H5S_SELECT_SET, offset, NULL, newdims, NULL); */
/* dataspace = H5Screate_simple (1, newdims, NULL); */
/* H5Dwrite (dataset, H5T_NATIVE_INT, dataspace, filespace, H5P_DEFAULT, nodeIndex); */
/* H5Sclose(dataspace); */
/* H5Dclose(filespace); */
/* H5Dclose(dataset); */
/* descendentIndex Dataset*/
/* dataset = H5Dopen (file_out_hdf5, "/haloTrees/descendentIndex", H5P_DEFAULT); */
/* H5Dextend(dataset, finaldims); */
/* filespace = H5Dget_space( dataset ); */
/* H5Sselect_hyperslab (filespace, H5S_SELECT_SET, offset, NULL, newdims, NULL); */
/* dataspace = H5Screate_simple (1, newdims, NULL); */
/* H5Dwrite (dataset, H5T_NATIVE_INT, dataspace, filespace, H5P_DEFAULT, nodeDescendent); */
/* H5Sclose(dataspace); */
/* H5Dclose(filespace); */
/* H5Dclose(dataset); */
/* nodeMass Dataset*/
/* dataset = H5Dopen (file_out_hdf5, "/haloTrees/nodeMass", H5P_DEFAULT); */
/* H5Dextend(dataset, finaldims); */
/* filespace = H5Dget_space( dataset ); */
/* H5Sselect_hyperslab (filespace, H5S_SELECT_SET, offset, NULL, newdims, NULL); */
/* dataspace = H5Screate_simple (1, newdims, NULL); */
/* H5Dwrite (dataset, H5T_NATIVE_DOUBLE, dataspace, filespace, H5P_DEFAULT, nodeMass); */
/* H5Sclose(dataspace); */
/* H5Dclose(filespace); */
/* H5Dclose(dataset); */
/* /\* exapansionFactor Dataset*\/ */
/* dataset = H5Dopen (file_out_hdf5, "/haloTrees/exapansionFactor", H5P_DEFAULT); */
/* H5Dextend(dataset, finaldims); */
/* filespace = H5Dget_space( dataset ); */
/* H5Sselect_hyperslab (filespace, H5S_SELECT_SET, offset, NULL, newdims, NULL); */
/* dataspace = H5Screate_simple (1, newdims, NULL); */
/* H5Dwrite (dataset, H5T_NATIVE_DOUBLE, dataspace, filespace, H5P_DEFAULT, expansionFactor); */
/* H5Sclose(dataspace); */
/* H5Dclose(filespace); */
/* H5Dclose(dataset); */
/* /\* redshift Dataset *\/ */
/* dataset = H5Dopen (file_out_hdf5, "/haloTrees/redshift", H5P_DEFAULT); */
/* H5Dextend(dataset, finaldims); */
/* filespace = H5Dget_space( dataset ); */
/* H5Sselect_hyperslab (filespace, H5S_SELECT_SET, offset, NULL, newdims, NULL); */
/* dataspace = H5Screate_simple (1, newdims, NULL); */
/* H5Dwrite (dataset, H5T_NATIVE_DOUBLE, dataspace, filespace, H5P_DEFAULT, redshift); */
/* H5Sclose(dataspace); */
/* H5Dclose(filespace); */
/* H5Dclose(dataset); */
/* /\* time Dataset *\/ */
/* dataset = H5Dopen (file_out_hdf5, "/haloTrees/time", H5P_DEFAULT); */
/* H5Dextend(dataset, finaldims); */
/* filespace = H5Dget_space( dataset ); */
/* H5Sselect_hyperslab (filespace, H5S_SELECT_SET, offset, NULL, newdims, NULL); */
/* dataspace = H5Screate_simple (1, newdims, NULL); */
/* H5Dwrite (dataset, H5T_NATIVE_DOUBLE, dataspace, filespace, H5P_DEFAULT, time); */
/* H5Sclose(dataspace); */
/* H5Dclose(filespace); */
/* H5Dclose(dataset); */
/* /\* position Dataset *\/ */
/* dataset = H5Dopen (file_out_hdf5, "/haloTrees/position", H5P_DEFAULT); */
/* H5Dextend(dataset, finaldims2); */
/* filespace = H5Dget_space( dataset ); */
/* H5Sselect_hyperslab (filespace, H5S_SELECT_SET, offset2, NULL, newdims2, NULL); */
/* dataspace = H5Screate_simple (2, newdims2, NULL); */
/* H5Dwrite (dataset, H5T_NATIVE_DOUBLE, dataspace, filespace, H5P_DEFAULT, nodePosition); */
/* H5Sclose(dataspace); */
/* H5Dclose(filespace); */
/* H5Dclose(dataset); */
/* velocity Dataset */ //not used by Galacticus yet!
/* dataspace = H5Screate_simple(2, dims2, maxdims2); */
/* cparams = H5Pcreate (H5P_DATASET_CREATE); */
/* H5Pset_chunk ( cparams, 2, chunk_dims2); */
/* dataset = H5Dcreate(file_out_hdf5, "/haloTrees/velocity", H5T_IEEE_F64LE, dataspace, H5P_DEFAULT, cparams, H5P_DEFAULT); */
/* H5Dwrite( dataset, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, H5P_DEFAULT, nodeVelocity); */
/* H5Pclose(cparams); */
/* H5Sclose(dataspace); */
/* H5Dclose(dataset); */
}
void Hdf5DataReader::CommonConstructor()
{
if (!mDirectory.IsDir() || !mDirectory.Exists())
{
EXCEPTION("Directory does not exist: " + mDirectory.GetAbsolutePath());
}
std::string file_name = mDirectory.GetAbsolutePath() + mBaseName + ".h5";
FileFinder h5_file(file_name, RelativeTo::Absolute);
if (!h5_file.Exists())
{
EXCEPTION("Hdf5DataReader could not open " + file_name + " , as it does not exist.");
}
// Open the file and the main dataset
mFileId = H5Fopen(file_name.c_str(), H5F_ACC_RDONLY, H5P_DEFAULT);
if (mFileId <= 0)
{
EXCEPTION("Hdf5DataReader could not open " << file_name <<
" , H5Fopen error code = " << mFileId);
}
mVariablesDatasetId = H5Dopen(mFileId, mDatasetName.c_str(), H5P_DEFAULT);
SetMainDatasetRawChunkCache();
if (mVariablesDatasetId <= 0)
{
H5Fclose(mFileId);
EXCEPTION("Hdf5DataReader opened " << file_name << " but could not find the dataset '" <<
mDatasetName.c_str() << "', H5Dopen error code = " << mVariablesDatasetId);
}
hid_t variables_dataspace = H5Dget_space(mVariablesDatasetId);
mVariablesDatasetRank = H5Sget_simple_extent_ndims(variables_dataspace);
// Get the dataset/dataspace dimensions
hsize_t dataset_max_sizes[AbstractHdf5Access::DATASET_DIMS];
H5Sget_simple_extent_dims(variables_dataspace, mDatasetDims, dataset_max_sizes);
for (unsigned i=1; i<AbstractHdf5Access::DATASET_DIMS; i++) // Zero is excluded since it may be unlimited
{
assert(mDatasetDims[i] == dataset_max_sizes[i]);
}
// Check if an unlimited dimension has been defined
if (dataset_max_sizes[0] == H5S_UNLIMITED)
{
// In terms of an Unlimited dimension dataset:
// * Files pre - r16738 (inc. Release 3.1 and earlier) use simply "Time" for "Data"'s unlimited variable.
// * Files generated by r16738 - r18257 used "<DatasetName>_Time" for "<DatasetName>"'s unlimited variable,
// - These are not to be used and there is no backwards compatibility for them, since they weren't in a release.
// * Files post r18257 (inc. Release 3.2 onwards) use "<DatasetName>_Unlimited" for "<DatasetName>"'s
// unlimited variable,
// - a new attribute "Name" has been added to the Unlimited Dataset to allow it to assign
// any name to the unlimited variable. Which can then be easily read by this class.
// - if this dataset is missing we look for simply "Time" to remain backwards compatible with Releases <= 3.1
SetUnlimitedDatasetId();
hid_t timestep_dataspace = H5Dget_space(mUnlimitedDatasetId);
// Get the dataset/dataspace dimensions
H5Sget_simple_extent_dims(timestep_dataspace, &mNumberTimesteps, NULL);
}
// Get the attribute where the name of the variables are stored
hid_t attribute_id = H5Aopen_name(mVariablesDatasetId, "Variable Details");
// Get attribute datatype, dataspace, rank, and dimensions
hid_t attribute_type = H5Aget_type(attribute_id);
hid_t attribute_space = H5Aget_space(attribute_id);
hsize_t attr_dataspace_dim;
H5Sget_simple_extent_dims(attribute_space, &attr_dataspace_dim, NULL);
unsigned num_columns = H5Sget_simple_extent_npoints(attribute_space);
char* string_array = (char *)malloc(sizeof(char)*MAX_STRING_SIZE*(int)num_columns);
H5Aread(attribute_id, attribute_type, string_array);
// Loop over column names and store them.
for (unsigned index=0; index < num_columns; index++)
{
// Read the string from the raw vector
std::string column_name_unit(&string_array[MAX_STRING_SIZE*index]);
// Find beginning of unit definition.
size_t name_length = column_name_unit.find('(');
size_t unit_length = column_name_unit.find(')') - name_length - 1;
std::string column_name = column_name_unit.substr(0, name_length);
std::string column_unit = column_name_unit.substr(name_length+1, unit_length);
mVariableNames.push_back(column_name);
mVariableToColumnIndex[column_name] = index;
mVariableToUnit[column_name] = column_unit;
}
// Release all the identifiers
H5Tclose(attribute_type);
H5Sclose(attribute_space);
H5Aclose(attribute_id);
// Free allocated memory
free(string_array);
// Find out if it's incomplete data
H5E_BEGIN_TRY //Supress HDF5 error if the IsDataComplete name isn't there
{
attribute_id = H5Aopen_name(mVariablesDatasetId, "IsDataComplete");
}
H5E_END_TRY;
if (attribute_id < 0)
{
// This is in the old format (before we added the IsDataComplete attribute).
// Just quit (leaving a nasty hdf5 error).
return;
}
attribute_type = H5Aget_type(attribute_id);
attribute_space = H5Aget_space(attribute_id);
unsigned is_data_complete;
H5Aread(attribute_id, H5T_NATIVE_UINT, &is_data_complete);
// Release all the identifiers
H5Tclose(attribute_type);
H5Sclose(attribute_space);
H5Aclose(attribute_id);
mIsDataComplete = (is_data_complete == 1) ? true : false;
if (is_data_complete)
{
return;
}
// Incomplete data
// Read the vector thing
attribute_id = H5Aopen_name(mVariablesDatasetId, "NodeMap");
attribute_type = H5Aget_type(attribute_id);
attribute_space = H5Aget_space(attribute_id);
// Get the dataset/dataspace dimensions
unsigned num_node_indices = H5Sget_simple_extent_npoints(attribute_space);
// Read data from hyperslab in the file into the hyperslab in memory
mIncompleteNodeIndices.clear();
mIncompleteNodeIndices.resize(num_node_indices);
H5Aread(attribute_id, H5T_NATIVE_UINT, &mIncompleteNodeIndices[0]);
H5Tclose(attribute_type);
H5Sclose(attribute_space);
H5Aclose(attribute_id);
}
/*
* Operator function.
*/
static herr_t
attr_info(hid_t loc_id, const char *name, const H5A_info_t *ainfo, void *opdata)
{
hid_t attr, atype, aspace; /* Attribute, datatype and dataspace identifiers */
int rank;
hsize_t sdim[64];
herr_t ret;
int i;
size_t npoints; /* Number of elements in the array attribute. */
float *float_array; /* Pointer to the array attribute. */
/* avoid warnings */
opdata = opdata;
/*
* Open the attribute using its name.
*/
attr = H5Aopen(loc_id, name, H5P_DEFAULT);
/*
* Display attribute name.
*/
printf("\nName : %s\n", name);
/*
* Get attribute datatype, dataspace, rank, and dimensions.
*/
atype = H5Aget_type(attr);
aspace = H5Aget_space(attr);
rank = H5Sget_simple_extent_ndims(aspace);
ret = H5Sget_simple_extent_dims(aspace, sdim, NULL);
/*
* Display rank and dimension sizes for the array attribute.
*/
if(rank > 0) {
printf("Rank : %d \n", rank);
printf("Dimension sizes : ");
for (i=0; i< rank; i++)
printf("%d ", (int)sdim[i]);
printf("\n");
}
/*
* Read array attribute and display its type and values.
*/
if (H5T_FLOAT == H5Tget_class(atype)) {
printf("Type : FLOAT \n");
npoints = H5Sget_simple_extent_npoints(aspace);
float_array = (float *)malloc(sizeof(float)*(int)npoints);
ret = H5Aread(attr, atype, float_array);
printf("Values : ");
for( i = 0; i < (int)npoints; i++)
printf("%f ", float_array[i]);
printf("\n");
free(float_array);
}
/*
* Release all identifiers.
*/
H5Tclose(atype);
H5Sclose(aspace);
H5Aclose(attr);
return 0;
}
// JRC: This fat interface may not scale? What about
// scalar attributes?
herr_t getAttributeHelper(const hid_t id, std::string* sval, std::vector<int>* ivals,
std::vector<float>* fvals) {
herr_t err = 0;
size_t npoints;
hid_t atype = H5Aget_type(id);
H5T_class_t type = H5Tget_class(atype);
hid_t aspace = H5Aget_space(id);
size_t rank = H5Sget_simple_extent_ndims(aspace);
/*
hsize_t sdim[rank];
ret = H5Sget_simple_extent_dims(aspace, sdim, NULL);
dims->resize(rank);
for (size_t i = 0; i < rank; ++i)
(*dims)[i] = sdim[i];
*/
if (type == H5T_INTEGER) {
if (rank == 0) {
ivals->resize(1);
int v;
// err = H5Aread(id, atype, &v);
err = H5Aread(id, H5T_NATIVE_INT, &v);
(*ivals)[0] = v;
return err;
}
// rank>0
npoints = H5Sget_simple_extent_npoints(aspace);
int* v = new int[npoints];
err = H5Aread(id, H5T_NATIVE_INT, v);
ivals->resize(npoints);
for (size_t i = 0; i<npoints; ++i) {
(*ivals)[i] = v[i];
}
delete v;
return err;
}
if (type == H5T_FLOAT) {
if (rank == 0) {
fvals->resize(1);
float v;
err = H5Aread(id, H5T_NATIVE_FLOAT, &v);
(*fvals)[0] = v;
return err;
}
// rank>0
npoints = H5Sget_simple_extent_npoints(aspace);
float* v = new float[npoints];
err = H5Aread(id, H5T_NATIVE_FLOAT, v);
fvals->resize(npoints);
for (size_t i = 0; i<npoints; ++i) {
(*fvals)[i] = v[i];
}
delete v;
return err;
}
if (type == H5T_STRING) {
if (rank != 0) {
return -1;
}
size_t len = H5Aget_storage_size(id);
sval->resize(len);
char* v = new char[len];
err = H5Aread(id, atype, v);
// JRC: is this right?
// err = H5Aread(id, H5T_NATIVE_CHAR, v);
for (size_t i = 0; i < len; ++i) {
(*sval)[i] = v[i];
}
delete [] v;
return err;
}
return err;
}
herr_t H5IMget_npalettes( hid_t loc_id,
const char *image_name,
hssize_t *npals )
{
hid_t did;
hid_t atid;
hid_t aid;
hid_t asid;
H5T_class_t aclass;
int has_pal;
/* check the arguments */
if(image_name == NULL)
return -1;
/*assume initially we have no palettes attached*/
*npals = 0;
/* Open the dataset. */
if((did = H5Dopen2(loc_id, image_name, H5P_DEFAULT)) < 0)
return -1;
/* Try to find the attribute "PALETTE" on the >>image<< dataset */
has_pal = H5IM_find_palette(did);
if(has_pal == 1 )
{
if((aid = H5Aopen(did, "PALETTE", H5P_DEFAULT)) < 0)
goto out;
if((atid = H5Aget_type(aid)) < 0)
goto out;
if((aclass = H5Tget_class(atid)) < 0)
goto out;
/* Check if it is really a reference */
if(aclass == H5T_REFERENCE)
{
if((asid = H5Aget_space(aid)) < 0)
goto out;
*npals = H5Sget_simple_extent_npoints( asid );
if ( H5Sclose( asid ) < 0)
goto out;
} /* H5T_REFERENCE */
if ( H5Tclose( atid ) < 0)
goto out;
/* Close the attribute. */
if ( H5Aclose( aid ) < 0)
goto out;
}
/* Close the image dataset. */
if ( H5Dclose( did ) < 0)
return -1;
return 0;
out:
H5Dclose( did );
return -1;
}
herr_t H5IMlink_palette( hid_t loc_id,
const char *image_name,
const char *pal_name )
{
hid_t did;
hid_t atid=-1;
hid_t aid=-1;
hid_t asid=-1;
hobj_ref_t ref; /* write a new reference */
hobj_ref_t *refbuf; /* buffer to read references */
hssize_t n_refs;
hsize_t dim_ref;
int ok_pal;
/* check the arguments */
if (image_name == NULL)
return -1;
if (pal_name == NULL)
return -1;
/* The image dataset may or may not have the attribute "PALETTE"
* First we try to open to see if it is already there; if not, it is created.
* If it exists, the array of references is extended to hold the reference
* to the new palette
*/
/* First we get the image id */
if((did = H5Dopen2(loc_id, image_name, H5P_DEFAULT)) < 0)
return -1;
/* Try to find the attribute "PALETTE" on the >>image<< dataset */
ok_pal = H5LT_find_attribute( did, "PALETTE" );
/*-------------------------------------------------------------------------
* It does not exist. We create the attribute and one reference
*-------------------------------------------------------------------------
*/
if(ok_pal == 0 )
{
if((asid = H5Screate(H5S_SCALAR)) < 0)
goto out;
/* Create the attribute type for the reference */
if((atid = H5Tcopy(H5T_STD_REF_OBJ)) < 0)
goto out;
/* Create the attribute "PALETTE" to be attached to the image*/
if((aid = H5Acreate2(did, "PALETTE", atid, asid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
goto out;
/* Create a reference. The reference is created on the local id. */
if(H5Rcreate(&ref, loc_id, pal_name, H5R_OBJECT, (hid_t)-1) < 0)
goto out;
/* Write the attribute with the reference */
if(H5Awrite(aid, atid, &ref) < 0)
goto out;
/* close */
if(H5Sclose(asid) < 0)
goto out;
if(H5Tclose(atid) < 0)
goto out;
if(H5Aclose(aid) < 0)
goto out;
}
/*-------------------------------------------------------------------------
* The attribute already exists, open it
*-------------------------------------------------------------------------
*/
else if(ok_pal == 1)
{
if((aid = H5Aopen(did, "PALETTE", H5P_DEFAULT)) < 0)
goto out;
if((atid = H5Aget_type(aid)) < 0)
goto out;
if(H5Tget_class(atid) < 0)
goto out;
/* Get and save the old reference(s) */
if((asid = H5Aget_space(aid)) < 0)
goto out;
n_refs = H5Sget_simple_extent_npoints(asid);
dim_ref = (hsize_t)n_refs + 1;
refbuf = (hobj_ref_t*)HDmalloc( sizeof(hobj_ref_t) * (size_t)dim_ref );
if ( H5Aread( aid, atid, refbuf ) < 0)
goto out;
/* The attribute must be deleted, in order to the new one can reflect the changes*/
if(H5Adelete(did, "PALETTE") < 0)
goto out;
/* Create a new reference for this palette. */
if ( H5Rcreate( &ref, loc_id, pal_name, H5R_OBJECT, (hid_t)-1 ) < 0)
goto out;
refbuf[n_refs] = ref;
/* Create the data space for the new references */
if(H5Sclose(asid) < 0)
goto out;
if((asid = H5Screate_simple(1, &dim_ref, NULL)) < 0)
goto out;
/* Create the attribute again with the changes of space */
if(H5Aclose(aid) < 0)
goto out;
if((aid = H5Acreate2(did, "PALETTE", atid, asid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
goto out;
/* Write the attribute with the new references */
if(H5Awrite(aid, atid, refbuf) < 0)
goto out;
/* close */
if(H5Sclose(asid) < 0)
goto out;
if(H5Tclose(atid) < 0)
goto out;
if(H5Aclose(aid) < 0)
goto out;
HDfree( refbuf );
} /* ok_pal == 1 */
/* Close the image dataset. */
if ( H5Dclose( did ) < 0)
return -1;
return 0;
out:
H5Dclose( did );
H5Sclose( asid );
H5Tclose( atid );
H5Aclose( aid );
return -1;
}
herr_t H5IMget_image_info( hid_t loc_id,
const char *dset_name,
hsize_t *width,
hsize_t *height,
hsize_t *planes,
char *interlace,
hssize_t *npals )
{
hid_t did;
hid_t sid;
hsize_t dims[IMAGE24_RANK];
hid_t aid;
hid_t asid;
hid_t atid;
H5T_class_t aclass;
int has_pal;
int has_attr;
/* check the arguments */
if (dset_name == NULL)
return -1;
if (interlace == NULL)
return -1;
/*assume initially we have no palettes attached*/
*npals = 0;
/* Open the dataset. */
if((did = H5Dopen2(loc_id, dset_name, H5P_DEFAULT)) < 0)
return -1;
/* Try to find the attribute "INTERLACE_MODE" on the >>image<< dataset */
has_attr = H5LT_find_attribute(did, "INTERLACE_MODE");
/* It exists, get it */
if(has_attr == 1)
{
if((aid = H5Aopen(did, "INTERLACE_MODE", H5P_DEFAULT)) < 0)
goto out;
if((atid = H5Aget_type(aid)) < 0)
goto out;
if(H5Aread(aid, atid, interlace) < 0)
goto out;
if(H5Tclose(atid) < 0)
goto out;
if(H5Aclose(aid) < 0)
goto out;
}
/* Get the dataspace handle */
if ( (sid = H5Dget_space( did )) < 0)
goto out;
/* Get dimensions */
if ( H5Sget_simple_extent_dims( sid, dims, NULL) < 0)
goto out;
/* Initialize the image dimensions */
if ( has_attr == 1 )
/* This is a 24 bit image */
{
if ( HDstrncmp( interlace, "INTERLACE_PIXEL", 15 ) == 0 )
{
/* Number of color planes is defined as the third dimension */
*height = dims[0];
*width = dims[1];
*planes = dims[2];
}
else
if ( HDstrncmp( interlace, "INTERLACE_PLANE", 15 ) == 0 )
{
/* Number of color planes is defined as the first dimension */
*planes = dims[0];
*height = dims[1];
*width = dims[2];
}
else return -1;
}
else
/* This is a 8 bit image */
{
*height = dims[0];
*width = dims[1];
*planes = 1;
}
/* Close */
if ( H5Sclose( sid ) < 0)
goto out;
/* Get number of palettes */
/* Try to find the attribute "PALETTE" on the >>image<< dataset */
has_pal = H5IM_find_palette(did);
if(has_pal == 1)
{
if((aid = H5Aopen(did, "PALETTE", H5P_DEFAULT)) < 0)
goto out;
if((atid = H5Aget_type(aid)) < 0)
goto out;
if((aclass = H5Tget_class(atid)) < 0)
goto out;
/* Check if it is really a reference */
if(aclass == H5T_REFERENCE)
{
/* Get the reference(s) */
if ( (asid = H5Aget_space( aid )) < 0)
goto out;
*npals = H5Sget_simple_extent_npoints( asid );
if ( H5Sclose( asid ) < 0)
goto out;
} /* H5T_REFERENCE */
if ( H5Tclose( atid ) < 0)
goto out;
/* Close the attribute. */
if ( H5Aclose( aid ) < 0)
goto out;
}
/* End access to the dataset and release resources used by it. */
if ( H5Dclose( did ) < 0)
goto out;
return 0;
out:
H5Dclose( did );
H5Aclose( aid );
H5Sclose( asid );
H5Tclose( atid );
return -1;
}
int
main(void)
{
hid_t fid1; /* HDF5 File IDs */
hid_t dset1, /* Dataset ID */
dset2; /* Dereferenced dataset ID */
hid_t sid1, /* Dataspace ID #1 */
sid2; /* Dataspace ID #2 */
hsize_t * coords; /* Coordinate buffer */
hsize_t low[SPACE2_RANK]; /* Selection bounds */
hsize_t high[SPACE2_RANK]; /* Selection bounds */
hdset_reg_ref_t *rbuf; /* buffer to to read disk */
int *drbuf; /* Buffer for reading numeric data from disk */
int i, j; /* counting variables */
herr_t ret; /* Generic return value */
/* Output message about test being performed */
/* Allocate write & read buffers */
rbuf=malloc(sizeof(hdset_reg_ref_t)*SPACE1_DIM1);
drbuf=calloc(sizeof(int),SPACE2_DIM1*SPACE2_DIM2);
/* Open the file */
fid1 = H5Fopen(FILE2, H5F_ACC_RDWR, H5P_DEFAULT);
/* Open the dataset */
dset1=H5Dopen(fid1,"/Dataset1");
/* Read selection from disk */
ret=H5Dread(dset1,H5T_STD_REF_DSETREG,H5S_ALL,H5S_ALL,H5P_DEFAULT,rbuf);
/* Try to open objects */
dset2 = H5Rdereference(dset1,H5R_DATASET_REGION,&rbuf[0]);
/* Check information in referenced dataset */
sid1 = H5Dget_space(dset2);
ret=H5Sget_simple_extent_npoints(sid1);
printf(" Number of elements in the dataset is : %d\n",ret);
/* Read from disk */
ret=H5Dread(dset2,H5T_NATIVE_INT,H5S_ALL,H5S_ALL,H5P_DEFAULT,drbuf);
for(i=0; i<SPACE2_DIM1; i++) {
for (j=0; j<SPACE2_DIM2; j++) printf (" %d ", drbuf[i*SPACE2_DIM2+j]);
printf("\n"); }
/* Get the hyperslab selection */
sid2=H5Rget_region(dset1,H5R_DATASET_REGION,&rbuf[0]);
/* Verify correct hyperslab selected */
ret = H5Sget_select_npoints(sid2);
printf(" Number of elements in the hyperslab is : %d \n", ret);
ret = H5Sget_select_hyper_nblocks(sid2);
coords=malloc(ret*SPACE2_RANK*sizeof(hsize_t)*2); /* allocate space for the hyperslab blocks */
ret = H5Sget_select_hyper_blocklist(sid2,0,ret,coords);
printf(" Hyperslab coordinates are : \n");
printf (" ( %lu , %lu ) ( %lu , %lu ) \n", \
(unsigned long)coords[0],(unsigned long)coords[1],(unsigned long)coords[2],(unsigned long)coords[3]);
free(coords);
ret = H5Sget_select_bounds(sid2,low,high);
/* Close region space */
ret = H5Sclose(sid2);
/* Get the element selection */
sid2=H5Rget_region(dset1,H5R_DATASET_REGION,&rbuf[1]);
/* Verify correct elements selected */
ret = H5Sget_select_elem_npoints(sid2);
printf(" Number of selected elements is : %d\n", ret);
/* Allocate space for the element points */
coords= malloc(ret*SPACE2_RANK*sizeof(hsize_t));
ret = H5Sget_select_elem_pointlist(sid2,0,ret,coords);
printf(" Coordinates of selected elements are : \n");
for (i=0; i<2*NPOINTS; i=i+2)
printf(" ( %lu , %lu ) \n", (unsigned long)coords[i],(unsigned long)coords[i+1]);
free(coords);
ret = H5Sget_select_bounds(sid2,low,high);
/* Close region space */
ret = H5Sclose(sid2);
/* Close first space */
ret = H5Sclose(sid1);
/* Close dereferenced Dataset */
ret = H5Dclose(dset2);
/* Close Dataset */
ret = H5Dclose(dset1);
/* Close file */
ret = H5Fclose(fid1);
/* Free memory buffers */
free(rbuf);
free(drbuf);
return 0;
}
/* ****************************************************************************************************************************** */
int main(int argc, char *argv[]) {
hid_t fileID, dataSetID;
herr_t hErrVal;
int i;
hsize_t dims[1024], maxDims[1024];
H5T_class_t class;
char classStr[32];
hid_t dataTypeID;
size_t dataSize;
H5T_order_t order;
int rank; /* Note this is an int, not an hssize_t */
int intVal;
hid_t dataSpaceID;
hid_t rootGroupID;
hsize_t numInRootGrp, firstDataSetIdx, foundFirstDataSet;
char attrName[1024], firstDataSetName[1024];
ssize_t objectNameSize, attrNameSize;
H5G_stat_t objectStatInfo;
int numAttrs;
int curAttrIdx;
hid_t attrID;
hsize_t numDataPoints;
unsigned majnum, minnum, relnum;
/* Load the library -- not required most platforms. */
hErrVal = H5open();
mjrHDF5_chkError(hErrVal);
/* Get the library version */
hErrVal = H5get_libversion(&majnum, &minnum, &relnum);
mjrHDF5_chkError(hErrVal);
printf("Lib Version: v%lu.%lur%lu\n", (unsigned long)majnum, (unsigned long)minnum, (unsigned long)relnum);
/* Open an existing file. */
fileID = H5Fopen(TST_FILE_NAME, H5F_ACC_RDWR, H5P_DEFAULT);
mjrHDF5_chkError(fileID);
/* Get the ID for the "root" group -- every HDF5 has one */
rootGroupID = H5Gopen(fileID, "/", H5P_DEFAULT);
mjrHDF5_chkError(rootGroupID);
/* Get the number of objects in the root group. */
hErrVal = H5Gget_num_objs(rootGroupID, &numInRootGrp);
mjrHDF5_chkError(hErrVal);
printf("The root group contains %lu object%c\n", (unsigned long)numInRootGrp, (numInRootGrp==1?' ':'s'));
if(numInRootGrp < 1) {
printf("As the file contains NO objects, I have nothing left to do...\n");
exit(1);
} /* end if */
/* Find the first dataset in the root group. */
for(foundFirstDataSet=0,firstDataSetIdx=0; (!foundFirstDataSet)&&(firstDataSetIdx<numInRootGrp); firstDataSetIdx++) {
/* Get object name from the index. */
objectNameSize = H5Gget_objname_by_idx(rootGroupID, firstDataSetIdx, firstDataSetName, 1024);
mjrHDF5_chkError(objectNameSize);
if(objectNameSize == 0) { /* Need to check for zero return too */
printf("ERROR: Object with index %lu doesn't exist in root group!\n", (unsigned long)firstDataSetIdx);
exit(1);
} /* end if */
/* Now use the object name to get info about the object... */
hErrVal = H5Gget_objinfo(rootGroupID, firstDataSetName, 0, &objectStatInfo);
mjrHDF5_chkError(hErrVal);
/* If the object is a dataset, then print out some info. */
if(objectStatInfo.type == H5G_DATASET) {
printf("Object %luth (%s) is a dataset!\n", (unsigned long)firstDataSetIdx, firstDataSetName);
printf("The name of the %luth object of the root group is: %s\n", (unsigned long)firstDataSetIdx, firstDataSetName);
foundFirstDataSet = 1;
printf("Info for the %s dataset:\n", firstDataSetName);
printf(" Modify time: %lu\n", (unsigned long)objectStatInfo.mtime);
printf(" Type: %lu\n", (unsigned long)objectStatInfo.type);
printf(" Link count: %lu\n", (unsigned long)objectStatInfo.nlink);
} /* end if */
} /* end for */
/* Note: At this point index of the dataset will be: firstDataSetIdx-- */
if(!foundFirstDataSet) {
printf("ERROR: Could not find a dataset in the root group\n");
exit(1);
} /* end if */
/* Open the dataset we found -- we know it exists. */
dataSetID = H5Dopen(rootGroupID, firstDataSetName, H5P_DEFAULT);
mjrHDF5_chkError(dataSetID);
/* ****************************************************************************************************************************** */
/* Get some info regarding the TYPE of the dataset. */
dataTypeID = H5Dget_type(dataSetID);
mjrHDF5_chkError(dataTypeID);
/* Get the class of the data */
class = H5Tget_class(dataTypeID);
mjrHDF5_Tclass2str(class, classStr);
printf(" Object class: %s\n", classStr);
/* Get the size of the type */
dataSize = H5Tget_size(dataTypeID);
if(dataSize == 0) {
printf("ERROR: Failure in H5Tget_size().\n");
exit(1);
} /* end if */
printf(" Size of data type: %lu\n", (unsigned long)dataSize);
/* Get the byte order */
order = H5Tget_order(dataTypeID);
printf(" Byte Order: ");
switch(order) {
case H5T_ORDER_ERROR : printf("ERROR\n"); break;
case H5T_ORDER_LE : printf("Little Endian\n"); break;
case H5T_ORDER_BE : printf("Big Endian\n"); break;
case H5T_ORDER_VAX : printf("VAX mixed endian\n"); break;
case H5T_ORDER_MIXED : printf("Mixed endian\n"); break;
case H5T_ORDER_NONE : printf("particular order\n"); break;
} /* end switch */
/* We are done with the datatype. */
hErrVal = H5Tclose(dataTypeID);
mjrHDF5_chkError(hErrVal);
/* ****************************************************************************************************************************** */
/* Figure out the size of the dataset. */
dataSpaceID = H5Dget_space(dataSetID);
mjrHDF5_chkError(dataSpaceID);
/* Get the number of dims. */
rank = H5Sget_simple_extent_ndims(dataSpaceID);
mjrHDF5_chkError(rank);
if(rank > 1024) {
/* This can't really happen (limit is 32) */
printf("ERROR: rank too large.\n");
exit(1);
} /* end if */
/* Get the size of each dim. */
intVal = H5Sget_simple_extent_dims(dataSpaceID, dims, maxDims);
mjrHDF5_chkError(intVal);
printf(" Dataspace Rank %lu\n", (unsigned long)rank);
printf(" Dim Lengths: ");
for(i=0; i<rank; i++)
if(dims[i] == H5S_UNLIMITED) {
printf("%s ", "UNLIMITED");
} else {
printf("%ld ", (long)(dims[i]));
} /* end if/else */
printf("\n");
printf(" Max Dim Lengths: ");
for(i=0; i<rank; i++)
if(maxDims[i] == H5S_UNLIMITED) {
printf("%s ", "UNLIMITED");
} else {
printf("%ld ", (long)(maxDims[i]));
} /* end if/else */
printf("\n");
numDataPoints = H5Sget_simple_extent_npoints(dataSpaceID);
if(numDataPoints == 0) {
printf("ERROR: Call to H5Sget_simple_extent_npoints failed.\n");
exit(1);
} /* end if */
printf("Number of data points: %lu\n", (unsigned long)numDataPoints);
/* We are done with the dataSpaceID */
hErrVal = H5Sclose(dataSpaceID);
mjrHDF5_chkError(hErrVal);
/* Get the number of attributes for the dataSet. */
numAttrs = H5Aget_num_attrs(dataSetID);
mjrHDF5_chkError(numAttrs);
printf(" Number of attrs: %lu\n", (unsigned long)numAttrs);
/* If we have any attributes, we get info for them */
if(numAttrs > 0) {
printf(" Attribute info:\n");
for(curAttrIdx=0; curAttrIdx<numAttrs; curAttrIdx++) {
attrID = H5Aopen_idx(dataSetID, curAttrIdx);
mjrHDF5_chkError(attrID);
attrNameSize = H5Aget_name(attrID, 1024, attrName);
mjrHDF5_chkError(attrNameSize);
printf(" Number %3lu: ", (unsigned long)curAttrIdx);
dataTypeID = H5Aget_type(attrID);
mjrHDF5_chkError(dataTypeID);
/* Get the class for the type. */
class = H5Tget_class(dataTypeID);
mjrHDF5_Tclass2str(class, classStr);
printf(" Class: %-16s", classStr);
/* Get the size of the type */
dataSize = H5Tget_size(dataTypeID);
if(dataSize == 0) {
printf("ERROR: Failure in H5Tget_size().\n");
exit(1);
} /* end if */
printf(" Size: %3lu ", (unsigned long)dataSize);
hErrVal = H5Tclose(dataTypeID);
mjrHDF5_chkError(hErrVal);
printf(" Name: %s \n", attrName);
hErrVal = H5Aclose(attrID);
mjrHDF5_chkError(hErrVal);
} /* end for */
} /* end if */
