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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "ismrmrd/ismrmrd.h"
#include "ismrmrd/dataset.h"
void myerror(const char *file, int line, const char *func, int code, const char *msg) {
const char *msgtype = ismrmrd_strerror(code);
fprintf(stderr, "Whoa! ERROR: %s in %s, line %d: %s\n", msgtype, file, line, msg);
exit(-1);
}
int main(void)
{
printf("%zu %zu %zu %zu %zu %zu %zu %zu %zu \n",
HOFFSET(ISMRMRD_WaveformHeader, version),
HOFFSET(ISMRMRD_WaveformHeader, flags),
HOFFSET(ISMRMRD_WaveformHeader, measurement_uid),
HOFFSET(ISMRMRD_WaveformHeader, scan_counter),
HOFFSET(ISMRMRD_WaveformHeader, time_stamp),
HOFFSET(ISMRMRD_WaveformHeader, number_of_samples),
HOFFSET(ISMRMRD_WaveformHeader, channels),
HOFFSET(ISMRMRD_WaveformHeader, sample_time_us),
HOFFSET(ISMRMRD_WaveformHeader, waveform_id));
printf("Size %zu \n",sizeof(ISMRMRD_WaveformHeader));
/* Declarations */
int nacq_write, n, k, c;
ISMRMRD_Dataset dataset1;
ISMRMRD_Acquisition acq, acq2, acq3;
ISMRMRD_Dataset dataset2;
char *xmlstring;
ISMRMRD_Image im, im2;
uint32_t index;
uint64_t loc;
uint32_t nacq_read;
uint32_t numim;
const char *filename = "myfile.h5";
const char *groupname = "/dataset";
const char *xmlhdr = "Yo! This is some text for the header.";
const char *attr_string = "Yo! This is some text for the attribute string.";
ISMRMRD_NDArray arr, arr2;
/* Set the error handler */
ismrmrd_set_error_handler(myerror);
/************/
/* New File */
/************/
/* Create a data set */
ismrmrd_init_dataset(&dataset1, filename, groupname);
ismrmrd_open_dataset(&dataset1, true);
/* Write an XML header */
ismrmrd_write_header(&dataset1, xmlhdr);
/* Append some acquisitions */
nacq_write = 5;
for (n=0; n < nacq_write; n++) {
/* must initialize an acquisition before you can use it */
ismrmrd_init_acquisition(&acq);
acq.head.number_of_samples = 128;
acq.head.active_channels = 4;
for (k=0; k<acq.head.active_channels; k++) {
ismrmrd_set_channel_on(acq.head.channel_mask, k);
}
ismrmrd_make_consistent_acquisition(&acq);
for (k=0; k<acq.head.number_of_samples; k++) {
for (c=0; c<acq.head.active_channels; c++) {
#ifdef _MSC_VER
/* Windows C compilers don't have a good complex type */
acq.data[k*acq.head.active_channels + c].real = (float)n;
acq.data[k*acq.head.active_channels + c].imag = (float)n;
#else
acq.data[k*acq.head.active_channels + c] = n + I*n;
#endif
}
}
if (n == 0) {
ismrmrd_set_flag(&(acq.head.flags), ISMRMRD_ACQ_FIRST_IN_SLICE);
}
else if (n == nacq_write-1) {
ismrmrd_set_flag(&(acq.head.flags), ISMRMRD_ACQ_LAST_IN_SLICE);
}
ismrmrd_append_acquisition(&dataset1, &acq);
ismrmrd_cleanup_acquisition(&acq);
}
/* Close the dataset */
ismrmrd_close_dataset(&dataset1);
/************/
/* Old File */
/************/
/* Reopen the file as a different dataset */
ismrmrd_init_dataset(&dataset2, filename, groupname);
ismrmrd_open_dataset(&dataset2, false);
/* Read the header */
xmlstring = ismrmrd_read_header(&dataset2);
printf("Header: %s\n", xmlstring);
free(xmlstring);
/* Get the number of acquisitions */
nacq_read = ismrmrd_get_number_of_acquisitions(&dataset2);
printf("Number of Acquisitions: %u\n", nacq_read);
/* read the next to last one */
ismrmrd_init_acquisition(&acq2);
index = 0;
if (nacq_read>1) {
index = nacq_read - 1;
}
else {
index = 0;
}
printf("Acquisition index: %u\n", index);
ismrmrd_read_acquisition(&dataset2, index, &acq2);
printf("Number of samples: %u\n", acq2.head.number_of_samples);
printf("Flags: %llu\n", (unsigned long long)acq2.head.flags);
printf("Channel Mask[0]: %llu\n", (unsigned long long)acq2.head.channel_mask[0]);
printf("Channel Mask[1]: %llu\n", (unsigned long long)acq2.head.channel_mask[1]);
printf("Channel 3 is %d\n", ismrmrd_is_channel_on(acq2.head.channel_mask, 3));
printf("Channel 5 is %d\n", ismrmrd_is_channel_on(acq2.head.channel_mask, 5));
#ifdef _MSC_VER
/* Windows C compilers don't have a good complex type */
printf("Data 3: %f\t 2: %f\n", acq2.data[4].real, acq2.data[4].imag);
#else
printf("Data[4]: %f, %f\n", creal(acq2.data[4]), cimag(acq2.data[4]));
#endif
ismrmrd_init_acquisition(&acq3);
ismrmrd_copy_acquisition(&acq3, &acq2);
printf("Pointers 3: %p\t 2: %p\n", (void *) acq3.data, (void *) acq2.data);
#ifdef _MSC_VER
/* Windows C compilers don't have a good complex type */
printf("Data 3: %f\t 2: %f\n", acq3.data[4].real, acq2.data[4].real);
#else
printf("Data 3: %f\t 2: %f\n", creal(acq3.data[4]), creal(acq2.data[4]));
#endif
ismrmrd_cleanup_acquisition(&acq2);
ismrmrd_cleanup_acquisition(&acq3);
/* Create and store an image */
ismrmrd_init_image(&im);
im.head.data_type = ISMRMRD_FLOAT;
im.head.matrix_size[0] = 256;
im.head.matrix_size[1] = 256;
im.head.matrix_size[2] = 4;
im.head.channels = 8;
/* Add an attribute string */
im.head.attribute_string_len = (uint32_t)strlen(attr_string);
ismrmrd_make_consistent_image(&im);
memcpy(im.attribute_string, attr_string, im.head.attribute_string_len);
memset(im.data, 0, 256*256*4*8*sizeof(float));
printf("Image Version: %d\n", im.head.version);
printf("Image String: %s\n", im.attribute_string);
ismrmrd_append_image(&dataset2, "testimages", &im);
for (loc=0; loc < 256*256*4*8; loc++) {
((float*)im.data)[loc] = 2.0;
}
ismrmrd_append_image(&dataset2, "testimages", &im);
ismrmrd_cleanup_image(&im);
numim = ismrmrd_get_number_of_images(&dataset2, "testimages");
printf("Number of images stored = %d\n", numim);
ismrmrd_init_image(&im2);
ismrmrd_read_image(&dataset2, "testimages", 1, &im2);
printf("Image 1 attribute string = %s\n", im2.attribute_string);
printf("Image 1 at position 10 has value = %f\n", ((float*)im2.data)[10]);
ismrmrd_cleanup_image(&im2);
/* Create and store an array */
ismrmrd_init_ndarray(&arr);
arr.data_type = ISMRMRD_FLOAT;
arr.ndim = 3;
arr.dims[0] = 256;
arr.dims[1] = 128;
arr.dims[2] = 4;
ismrmrd_make_consistent_ndarray(&arr);
for (loc=0; loc < 256*128*4; loc++) {
((float*)arr.data)[loc] = 2.0;
}
ismrmrd_append_array(&dataset2, "testarray", &arr);
printf("Number of arrays stored = %d\n", ismrmrd_get_number_of_arrays(&dataset2, "testarray"));
ismrmrd_cleanup_ndarray(&arr);
/* Read it back in */
ismrmrd_init_ndarray(&arr2);
ismrmrd_read_array(&dataset2, "testarray", 0, &arr2);
printf("Array 2 at position 10 has value = %f\n", ((float*)arr2.data)[10]);
ismrmrd_cleanup_ndarray(&arr2);
/* Close the dataset */
ismrmrd_close_dataset(&dataset2);
return 0;
}
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