diff --git a/MANIFEST b/MANIFEST index 9d5010236b..80ce2027f9 100644 --- a/MANIFEST +++ b/MANIFEST @@ -251,6 +251,7 @@ ./fortran/examples/compound.f90 ./fortran/examples/compound_fortran2003.f90 ./fortran/examples/compound_complex_fortran2003.f90 +./fortran/examples/h5_cmprss.f90 ./fortran/examples/h5_crtatt.f90 ./fortran/examples/h5_crtdat.f90 ./fortran/examples/h5_crtgrp.f90 diff --git a/fortran/examples/CMakeLists.txt b/fortran/examples/CMakeLists.txt index bf4b11ad7a..61543875a2 100644 --- a/fortran/examples/CMakeLists.txt +++ b/fortran/examples/CMakeLists.txt @@ -14,6 +14,7 @@ INCLUDE_DIRECTORIES (${CMAKE_Fortran_MODULE_DIRECTORY} ${HDF5_F90_BINARY_DIR} ${ # Define Sources #----------------------------------------------------------------------------- SET (examples + h5_cmprss h5_crtdat h5_rdwt h5_crtatt diff --git a/fortran/examples/Makefile.am b/fortran/examples/Makefile.am index 867d891a7a..e994d4e8a1 100644 --- a/fortran/examples/Makefile.am +++ b/fortran/examples/Makefile.am @@ -33,14 +33,14 @@ endif # compile them with the regular fortran compiler. EXAMPLE_PROG=h5_crtdat h5_rdwt h5_crtatt h5_crtgrp \ - h5_crtgrpar h5_crtgrpd h5_extend h5_subset hyperslab selectele \ + h5_crtgrpar h5_crtgrpd h5_extend h5_subset h5_cmprss hyperslab selectele \ refobjexample refregexample mountexample compound # List files to be installed here INSTALL_FILES=h5_crtdat.f90 h5_rdwt.f90 \ h5_crtatt.f90 h5_crtgrp.f90 h5_crtgrpar.f90 h5_crtgrpd.f90 \ - h5_extend.f90 h5_subset.f90 hyperslab.f90 selectele.f90 refobjexample.f90 \ - refregexample.f90 mountexample.f90 compound.f90 ph5example.f90 + h5_extend.f90 h5_subset.f90 h5_cmprss.f90 hyperslab.f90 selectele.f90 refobjexample.f90 \ + refregexample.f90 mountexample.f90 compound.f90 ph5example.f90 INSTALL_SCRIPT_FILES = run-fortran-ex.sh @@ -92,6 +92,7 @@ h5_crtatt: h5_crtatt.f90 h5_crtgrp: h5_crtgrp.f90 h5_crtgrpar: h5_crtgrpar.f90 h5_crtgrpd: h5_crtgrpd.f90 +h5_cmprss: h5_cmprss.f90 hyperslab: hyperslab.f90 selectele: selectele.f90 refobjexample: refobjexample.f90 diff --git a/fortran/examples/Makefile.in b/fortran/examples/Makefile.in index a0eb2c4506..a3b0b98de2 100644 --- a/fortran/examples/Makefile.in +++ b/fortran/examples/Makefile.in @@ -406,14 +406,14 @@ CHECK_CLEANFILES = *.chkexe *.chklog *.clog *.h5 # We don't tell automake about these programs so that it doesn't try to # compile them with the regular fortran compiler. EXAMPLE_PROG = h5_crtdat h5_rdwt h5_crtatt h5_crtgrp h5_crtgrpar \ - h5_crtgrpd h5_extend h5_subset hyperslab selectele \ + h5_crtgrpd h5_extend h5_subset h5_cmprss hyperslab selectele \ refobjexample refregexample mountexample compound \ $(am__append_1) # List files to be installed here INSTALL_FILES = h5_crtdat.f90 h5_rdwt.f90 h5_crtatt.f90 h5_crtgrp.f90 \ h5_crtgrpar.f90 h5_crtgrpd.f90 h5_extend.f90 h5_subset.f90 \ - hyperslab.f90 selectele.f90 refobjexample.f90 \ + h5_cmprss.f90 hyperslab.f90 selectele.f90 refobjexample.f90 \ refregexample.f90 mountexample.f90 compound.f90 ph5example.f90 \ $(am__append_2) INSTALL_SCRIPT_FILES = run-fortran-ex.sh @@ -696,6 +696,7 @@ h5_crtatt: h5_crtatt.f90 h5_crtgrp: h5_crtgrp.f90 h5_crtgrpar: h5_crtgrpar.f90 h5_crtgrpd: h5_crtgrpd.f90 +h5_cmprss: h5_cmprss.f90 hyperslab: hyperslab.f90 selectele: selectele.f90 refobjexample: refobjexample.f90 diff --git a/fortran/examples/h5_cmprss.f90 b/fortran/examples/h5_cmprss.f90 new file mode 100644 index 0000000000..847a922c8b --- /dev/null +++ b/fortran/examples/h5_cmprss.f90 @@ -0,0 +1,131 @@ +! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * +! Copyright by The HDF Group. * +! Copyright by the Board of Trustees of the University of Illinois. * +! All rights reserved. * +! * +! This file is part of HDF5. The full HDF5 copyright notice, including * +! terms governing use, modification, and redistribution, is contained in * +! the files COPYING and Copyright.html. COPYING can be found at the root * +! of the source code distribution tree; Copyright.html can be found at the * +! root level of an installed copy of the electronic HDF5 document set and * +! is linked from the top-level documents page. It can also be found at * +! http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have * +! access to either file, you may request a copy from help@hdfgroup.org. * +! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * +! +! This example illustrates how to create a compressed dataset. +! It is used in the HDF5 Tutorial. +! +PROGRAM h5_cmprss + + USE HDF5 ! This module contains all necessary modules + + IMPLICIT NONE + ! + ! The dataset is stored in file "h5_cmprss.h5" + ! + CHARACTER(LEN=12), PARAMETER :: filename = "h5_cmprss.h5" + INTEGER, PARAMETER :: rank = 2 ! Rank of the data set + INTEGER, PARAMETER :: dim0 = 100 ! Data set sizes + INTEGER, PARAMETER :: dim1 = 20 + + INTEGER(hid_t) :: file_id, dataset_id, dataspace_id ! Identifiers + INTEGER(hid_t) :: plist_id ! Property list identifier + + INTEGER :: error + INTEGER(hsize_t), DIMENSION(1:rank) :: dims ! dimensions of data + INTEGER(hsize_t), DIMENSION(1:rank) :: cdims ! sizes of chunked data + + INTEGER :: i,j, numfilt + INTEGER, DIMENSION(1:dim0,1:dim1) :: buf ! write buffer + INTEGER, DIMENSION(1:dim0,1:dim1) :: rbuf ! read buffer + INTEGER(HSIZE_T), DIMENSION(1:rank) :: data_dims ! dimensions of data buffers + + INTEGER, DIMENSION(1:1) :: cd_values ! Auxiliary data for the filter + INTEGER(size_t) :: nelmts ! Number of elements in cd_values + INTEGER :: flags ! Bit vector specifying certain general properties of the filter + INTEGER(SIZE_T) :: namelen = 180 ! Anticipated number of characters in name + CHARACTER(LEN=180) :: name ! Name of the filter + INTEGER :: filter_id ! Filter identification number + + ! Uncomment these variables to use SZIP compression + !INTEGER :: szip_options_mask + !INTEGER :: szip_pixels_per_block + + ! + !Initialize FORTRAN predifined datatypes + ! + CALL h5open_f(error) + ! + ! Create a file + CALL h5fcreate_f(filename, H5F_ACC_TRUNC_F, file_id, error) + ! + ! Create dataset "Compressed Data" in the group using absolute name. + dims(1:2) = (/dim0, dim1/) + CALL h5screate_simple_f(rank, dims, dataspace_id, error) + CALL h5pcreate_f(H5P_DATASET_CREATE_F, plist_id, error) + ! + ! Dataset must be chunked for compression + cdims(1:2) = 20 + CALL h5pset_chunk_f(plist_id, 2, cdims, error) + + ! Set ZLIB / DEFLATE Compression using compression level 6. + ! To use SZIP Compression comment out these lines. + CALL h5pset_deflate_f(plist_id, 6, error) + + ! Uncomment these lines to set SZIP Compression + !szip_options_mask = H5_SZIP_NN_OM_F + !szip_pixels_per_block = 16 + !CALL H5Pset_szip_f(plist_id, szip_options_mask, szip_pixels_per_block, error) + + ! Create data set + CALL h5dcreate_f(file_id, "Compressed_Data", H5T_NATIVE_INTEGER, dataspace_id, & + dataset_id, error, dcpl_id=plist_id) + + DO j = 1, dim1 + DO i = 1, dim0 + buf(i,j) = i+j + ENDDO + ENDDO + + data_dims(1:2) = (/dim0,dim1/) + CALL h5dwrite_f(dataset_id, H5T_NATIVE_INTEGER, buf, data_dims, error) + + ! Close resources + CALL h5sclose_f(dataspace_id, error) + CALL h5pclose_f(plist_id, error) + CALL h5dclose_f(dataset_id, error) + CALL h5fclose_f(file_id, error) + + ! Now reopen the file and dataset in the file. + CALL h5fopen_f(filename, H5F_ACC_RDONLY_F, file_id, error) + CALL h5dopen_f(file_id, "Compressed_Data", dataset_id, error) + + ! Retrieve filter information. + CALL h5dget_create_plist_f(dataset_id, plist_id, error) + + CALL h5pget_nfilters_f(plist_id, numfilt, error) + WRITE(*,'(A, I0)') "Number of filters associated with dataset: ", numfilt + + DO i = 1, numfilt + nelmts = 1 + CALL h5pget_filter_f(plist_id, 0, flags, nelmts, cd_values, & + namelen, name, filter_id, error) + + WRITE(*,'(30X,A)', ADVANCE='NO')"Filter Type: " + IF(filter_id.EQ.H5Z_FILTER_DEFLATE_F)THEN + WRITE(*,'(A)') "H5Z_FILTER_DEFLATE" + ELSEIF (filter_id.EQ.H5Z_FILTER_SZIP_F)THEN + WRITE(*,'(A)') "H5Z_FILTER_SZIP" + ELSE + WRITE(*,'(A)') "Other filter type included" + ENDIF + ENDDO + data_dims(1:2) = (/dim0,dim1/) + CALL h5dread_f(dataset_id, H5T_NATIVE_INTEGER, rbuf, data_dims, error) + + CALL h5dclose_f(dataset_id, error) + CALL h5pclose_f(plist_id, error) + CALL h5fclose_f(file_id, error) + +END PROGRAM h5_cmprss diff --git a/fortran/examples/run-fortran-ex.sh.in b/fortran/examples/run-fortran-ex.sh.in index 23c226629c..c5c379ed04 100644 --- a/fortran/examples/run-fortran-ex.sh.in +++ b/fortran/examples/run-fortran-ex.sh.in @@ -70,7 +70,9 @@ RunTest() # Run tests if [ $? -eq 0 ] then - if (RunTest h5_crtdat &&\ + if (RunTest h5_cmprss &&\ + rm h5_cmprss &&\ + RunTest h5_crtdat &&\ rm h5_crtdat &&\ RunTest h5_extend &&\ rm h5_extend &&\