static void construct(PyObject* obj_ptr, converter::rvalue_from_python_stage1_data* data) {
const int R = MatType::RowsAtCompileTime;
const int C = MatType::ColsAtCompileTime;
PyArrayObject *array = reinterpret_cast<PyArrayObject*>(obj_ptr);
int flags = PyArray_FLAGS(array);
if (!(flags & NPY_ARRAY_C_CONTIGUOUS) || !(flags & NPY_ARRAY_ALIGNED))
throw std::invalid_argument("Contiguous and aligned array required!");
const int ndims = PyArray_NDIM(array);
const int dtype_size = (PyArray_DESCR(array))->elsize;
const int s1 = PyArray_STRIDE(array, 0), s2 = ndims > 1 ? PyArray_STRIDE(array, 1) : 0;
int nrows=1, ncols=1;
if( R==1 || C==1 ) { // Vector
nrows = R==1 ? 1 : PyArray_SIZE2(array);
ncols = C==1 ? 1 : PyArray_SIZE2(array);
}
else {
nrows = (R == Dynamic) ? PyArray_DIMS(array)[0] : R;
if ( ndims > 1 )
ncols = (R == Dynamic) ? PyArray_DIMS(array)[1] : R;
}
T* raw_data = reinterpret_cast<T*>(PyArray_DATA(array));
typedef Map< Matrix<T,Dynamic,Dynamic,RowMajor>,Aligned,Stride<Dynamic, Dynamic> > MapType;
void* storage=((converter::rvalue_from_python_storage<MatType>*)(data))->storage.bytes;
new (storage) MatType;
MatType* emat = (MatType*)storage;
*emat = MapType(raw_data, nrows, ncols,Stride<Dynamic, Dynamic>(s1/dtype_size, s2/dtype_size));
data->convertible = storage;
}
/*NUMPY_API
*
* Get New ArrayFlagsObject
*/
NPY_NO_EXPORT PyObject *
PyArray_NewFlagsObject(PyObject *obj)
{
PyObject *flagobj;
int flags;
if (obj == NULL) {
flags = NPY_ARRAY_C_CONTIGUOUS |
NPY_ARRAY_OWNDATA |
NPY_ARRAY_F_CONTIGUOUS |
NPY_ARRAY_ALIGNED;
}
else {
if (!PyArray_Check(obj)) {
PyErr_SetString(PyExc_ValueError,
"Need a NumPy array to create a flags object");
return NULL;
}
flags = PyArray_FLAGS((PyArrayObject *)obj);
}
flagobj = PyArrayFlags_Type.tp_alloc(&PyArrayFlags_Type, 0);
if (flagobj == NULL) {
return NULL;
}
Py_XINCREF(obj);
((PyArrayFlagsObject *)flagobj)->arr = obj;
((PyArrayFlagsObject *)flagobj)->flags = flags;
return flagobj;
}
NPY_NO_EXPORT npy_bool
_IsWriteable(PyArrayObject *ap)
{
PyObject *base=PyArray_BASE(ap);
#if defined(NPY_PY3K)
Py_buffer view;
#else
void *dummy;
Py_ssize_t n;
#endif
/* If we own our own data, then no-problem */
if ((base == NULL) || (PyArray_FLAGS(ap) & NPY_ARRAY_OWNDATA)) {
return NPY_TRUE;
}
/*
* Get to the final base object
* If it is a writeable array, then return TRUE
* If we can find an array object
* or a writeable buffer object as the final base object
* or a string object (for pickling support memory savings).
* - this last could be removed if a proper pickleable
* buffer was added to Python.
*
* MW: I think it would better to disallow switching from READONLY
* to WRITEABLE like this...
*/
while(PyArray_Check(base)) {
if (PyArray_CHKFLAGS((PyArrayObject *)base, NPY_ARRAY_OWNDATA)) {
return (npy_bool) (PyArray_ISWRITEABLE((PyArrayObject *)base));
}
base = PyArray_BASE((PyArrayObject *)base);
}
/*
* here so pickle support works seamlessly
* and unpickled array can be set and reset writeable
* -- could be abused --
*/
if (PyString_Check(base)) {
return NPY_TRUE;
}
#if defined(NPY_PY3K)
if (PyObject_GetBuffer(base, &view, PyBUF_WRITABLE|PyBUF_SIMPLE) < 0) {
PyErr_Clear();
return NPY_FALSE;
}
PyBuffer_Release(&view);
#else
if (PyObject_AsWriteBuffer(base, &dummy, &n) < 0) {
PyErr_Clear();
return NPY_FALSE;
}
#endif
return NPY_TRUE;
}
// the data should be FLOAT32 and should be ensured in the wrapper
static PyObject *interp3(PyObject *self, PyObject *args)
{
PyArrayObject *volume, *result, *C, *R, *S;
float *pr, *pc, *ps;
float *pvol, *pvc;
int xdim, ydim, zdim;
// We expect 4 arguments of the PyArray_Type
if(!PyArg_ParseTuple(args, "O!O!O!O!",
&PyArray_Type, &volume,
&PyArray_Type, &R,
&PyArray_Type, &C,
&PyArray_Type, &S)) return NULL;
if ( NULL == volume ) return NULL;
if ( NULL == C ) return NULL;
if ( NULL == R ) return NULL;
if ( NULL == S ) return NULL;
// result matrix is the same size as C and is float
result = (PyArrayObject*) PyArray_ZEROS(PyArray_NDIM(C), C->dimensions, NPY_FLOAT, 0);
// This is for reference counting ( I think )
PyArray_FLAGS(result) |= NPY_OWNDATA;
// massive use of iterators to progress through the data
PyArrayIterObject *itr_v, *itr_r, *itr_c, *itr_s;
itr_v = (PyArrayIterObject *) PyArray_IterNew(result);
itr_r = (PyArrayIterObject *) PyArray_IterNew(R);
itr_c = (PyArrayIterObject *) PyArray_IterNew(C);
itr_s = (PyArrayIterObject *) PyArray_IterNew(S);
pvol = (float *)PyArray_DATA(volume);
xdim = PyArray_DIM(volume, 0);
ydim = PyArray_DIM(volume, 1);
zdim = PyArray_DIM(volume, 2);
//printf("%f\n", pvol[4*20*30 + 11*30 + 15]);
while(PyArray_ITER_NOTDONE(itr_v))
{
pvc = (float *) PyArray_ITER_DATA(itr_v);
pr = (float *) PyArray_ITER_DATA(itr_r);
pc = (float *) PyArray_ITER_DATA(itr_c);
ps = (float *) PyArray_ITER_DATA(itr_s);
// The order is weird because the tricubic code below is
// for Fortran ordering. Note that the xdim changes fast in
// the code, whereas the rightmost dim should change fast
// in C multidimensional arrays.
*pvc = TriCubic(*ps, *pc, *pr, pvol, zdim, ydim, xdim);
PyArray_ITER_NEXT(itr_v);
PyArray_ITER_NEXT(itr_r);
PyArray_ITER_NEXT(itr_c);
PyArray_ITER_NEXT(itr_s);
}
return result;
}
PyObject * array_view_to_python ( ArrayViewType const & A, bool copy=false) {
//_import_array();
typedef typename ArrayViewType::value_type value_type;
static const int rank = ArrayViewType::rank;
const int elementsType (numpy_to_C_type<value_type>::arraytype);
npy_intp dims[rank], strides[rank];
for(size_t i =0; i<rank; ++i) { dims[i] = A.indexmap().lengths()[i]; strides[i] = A.indexmap().strides()[i]*sizeof(value_type); }
const value_type * data = A.data_start();
//int flags = NPY_ARRAY_BEHAVED & ~NPY_ARRAY_OWNDATA;;// for numpy2
#ifdef TRIQS_NUMPY_VERSION_LT_17
int flags = NPY_BEHAVED & ~NPY_OWNDATA;
#else
int flags = NPY_ARRAY_BEHAVED & ~NPY_ARRAY_OWNDATA;
#endif
PyObject* res = PyArray_NewFromDescr(&PyArray_Type, PyArray_DescrFromType(elementsType), (int) rank, dims, strides, (void*) data, flags, NULL);
if (!res) {
if (PyErr_Occurred()) {PyErr_Print();PyErr_Clear();}
TRIQS_RUNTIME_ERROR<<" array_view_from_numpy : the python numpy object could not be build";
}
if (!PyArray_Check(res)) TRIQS_RUNTIME_ERROR<<" array_view_from_numpy : internal error : the python object is not a numpy";
PyArrayObject * arr = (PyArrayObject *)(res);
//PyArray_SetBaseObject(arr, A.storage().new_python_ref());
#ifdef TRIQS_NUMPY_VERSION_LT_17
arr->base = A.storage().new_python_ref();
assert( arr->flags == (arr->flags & ~NPY_OWNDATA));
#else
int r = PyArray_SetBaseObject(arr,A.storage().new_python_ref());
if (r!=0) TRIQS_RUNTIME_ERROR << "Internal Error setting the guard in numpy !!!!";
assert( PyArray_FLAGS(arr) == (PyArray_FLAGS(arr) & ~NPY_ARRAY_OWNDATA));
#endif
if (copy) {
PyObject * na = PyObject_CallMethod(res,(char*)"copy",NULL);
Py_DECREF(res);
// POrt this for 1.7
//assert(((PyArrayObject *)na)->base ==NULL);
res = na;
}
return res;
}
MatrixXd PyArray_ToMatrixXd(PyObject* array) {
if(PyArray_DESCR(array)->type != PyArray_DescrFromType(NPY_DOUBLE)->type)
throw Exception("Can only handle arrays of double values.");
if(PyArray_NDIM(array) == 1) {
if(PyArray_FLAGS(array) & NPY_F_CONTIGUOUS)
return Map<Matrix<double, Dynamic, Dynamic, ColMajor> >(
reinterpret_cast<double*>(PyArray_DATA(array)),
PyArray_DIM(array, 0), 1);
else if(PyArray_FLAGS(array) & NPY_C_CONTIGUOUS)
return Map<Matrix<double, Dynamic, Dynamic, RowMajor> >(
reinterpret_cast<double*>(PyArray_DATA(array)),
PyArray_DIM(array, 0), 1);
else
throw Exception("Data must be stored in contiguous memory.");
} else if(PyArray_NDIM(array) == 2) {
if(PyArray_FLAGS(array) & NPY_F_CONTIGUOUS)
return Map<Matrix<double, Dynamic, Dynamic, ColMajor> >(
reinterpret_cast<double*>(PyArray_DATA(array)),
PyArray_DIM(array, 0),
PyArray_DIM(array, 1));
else if(PyArray_FLAGS(array) & NPY_C_CONTIGUOUS)
return Map<Matrix<double, Dynamic, Dynamic, RowMajor> >(
reinterpret_cast<double*>(PyArray_DATA(array)),
PyArray_DIM(array, 0),
PyArray_DIM(array, 1));
else
throw Exception("Data must be stored in contiguous memory.");
} else {
throw Exception("Can only handle one- or two-dimensional arrays.");
}
}
/*
* check if in "alhs @op@ orhs" that alhs is a temporary (refcnt == 1) so we
* can do in-place operations instead of creating a new temporary
* "cannot" is set to true if it cannot be done even with swapped arguments
*/
static int
can_elide_temp(PyArrayObject * alhs, PyObject * orhs, int * cannot)
{
/*
* to be a candidate the array needs to have reference count 1, be an exact
* array of a basic type, own its data and size larger than threshold
*/
if (Py_REFCNT(alhs) != 1 || !PyArray_CheckExact(alhs) ||
PyArray_DESCR(alhs)->type_num >= NPY_OBJECT ||
!(PyArray_FLAGS(alhs) & NPY_ARRAY_OWNDATA) ||
PyArray_NBYTES(alhs) < NPY_MIN_ELIDE_BYTES) {
return 0;
}
if (PyArray_CheckExact(orhs) ||
PyArray_CheckAnyScalar(orhs)) {
PyArrayObject * arhs;
/* create array from right hand side */
Py_INCREF(orhs);
arhs = (PyArrayObject *)PyArray_EnsureArray(orhs);
if (arhs == NULL) {
return 0;
}
/*
* if rhs is not a scalar dimensions must match
* TODO: one could allow broadcasting on equal types
*/
if (!(PyArray_NDIM(arhs) == 0 ||
(PyArray_NDIM(arhs) == PyArray_NDIM(alhs) &&
PyArray_CompareLists(PyArray_DIMS(alhs), PyArray_DIMS(arhs),
PyArray_NDIM(arhs))))) {
Py_DECREF(arhs);
return 0;
}
/* must be safe to cast (checks values for scalar in rhs) */
if (PyArray_CanCastArrayTo(arhs, PyArray_DESCR(alhs),
NPY_SAFE_CASTING)) {
Py_DECREF(arhs);
return check_callers(cannot);
}
Py_DECREF(arhs);
}
return 0;
}
/* try elide unary temporary */
NPY_NO_EXPORT int
can_elide_temp_unary(PyArrayObject * m1)
{
int cannot;
if (Py_REFCNT(m1) != 1 || !PyArray_CheckExact(m1) ||
PyArray_DESCR(m1)->type_num == NPY_VOID ||
!(PyArray_FLAGS(m1) & NPY_ARRAY_OWNDATA) ||
PyArray_NBYTES(m1) < NPY_MIN_ELIDE_BYTES) {
return 0;
}
if (check_callers(&cannot)) {
#if NPY_ELIDE_DEBUG != 0
puts("elided temporary in unary op");
#endif
return 1;
}
else {
return 0;
}
}
/*NUMPY_API
*
* Get New ArrayFlagsObject
*/
NPY_NO_EXPORT PyObject *
PyArray_NewFlagsObject(PyObject *obj)
{
PyObject *flagobj;
int flags;
if (obj == NULL) {
flags = CONTIGUOUS | OWNDATA | FORTRAN | ALIGNED;
}
else {
flags = PyArray_FLAGS(obj);
}
flagobj = PyArrayFlags_Type.tp_alloc(&PyArrayFlags_Type, 0);
if (flagobj == NULL) {
return NULL;
}
Py_XINCREF(obj);
((PyArrayFlagsObject *)flagobj)->arr = obj;
((PyArrayFlagsObject *)flagobj)->flags = flags;
return flagobj;
}
void PyNet::check_contiguous_array(PyArrayObject* arr, string name,
int channels, int height, int width) {
if (!(PyArray_FLAGS(arr) & NPY_ARRAY_C_CONTIGUOUS)) {
throw std::runtime_error(name + " must be C contiguous");
}
if (PyArray_NDIM(arr) != 4) {
throw std::runtime_error(name + " must be 4-d");
}
if (PyArray_TYPE(arr) != NPY_FLOAT32) {
throw std::runtime_error(name + " must be float32");
}
if (PyArray_DIMS(arr)[1] != channels) {
throw std::runtime_error(name + " has wrong number of channels");
}
if (PyArray_DIMS(arr)[2] != height) {
throw std::runtime_error(name + " has wrong height");
}
if (PyArray_DIMS(arr)[3] != width) {
throw std::runtime_error(name + " has wrong width");
}
}
/*
* Conforms an output parameter 'out' to have 'ndim' dimensions
* with dimensions of size one added in the appropriate places
* indicated by 'axis_flags'.
*
* The return value is a view into 'out'.
*/
static PyArrayObject *
conform_reduce_result(int ndim, npy_bool *axis_flags,
PyArrayObject *out, int keepdims, const char *funcname,
int need_copy)
{
npy_intp strides[NPY_MAXDIMS], shape[NPY_MAXDIMS];
npy_intp *strides_out = PyArray_STRIDES(out);
npy_intp *shape_out = PyArray_DIMS(out);
int idim, idim_out, ndim_out = PyArray_NDIM(out);
PyArray_Descr *dtype;
PyArrayObject_fields *ret;
/*
* If the 'keepdims' parameter is true, do a simpler validation and
* return a new reference to 'out'.
*/
if (keepdims) {
if (PyArray_NDIM(out) != ndim) {
PyErr_Format(PyExc_ValueError,
"output parameter for reduction operation %s "
"has the wrong number of dimensions (must match "
"the operand's when keepdims=True)", funcname);
return NULL;
}
for (idim = 0; idim < ndim; ++idim) {
if (axis_flags[idim]) {
if (shape_out[idim] != 1) {
PyErr_Format(PyExc_ValueError,
"output parameter for reduction operation %s "
"has a reduction dimension not equal to one "
"(required when keepdims=True)", funcname);
return NULL;
}
}
}
Py_INCREF(out);
return out;
}
/* Construct the strides and shape */
idim_out = 0;
for (idim = 0; idim < ndim; ++idim) {
if (axis_flags[idim]) {
strides[idim] = 0;
shape[idim] = 1;
}
else {
if (idim_out >= ndim_out) {
PyErr_Format(PyExc_ValueError,
"output parameter for reduction operation %s "
"does not have enough dimensions", funcname);
return NULL;
}
strides[idim] = strides_out[idim_out];
shape[idim] = shape_out[idim_out];
++idim_out;
}
}
if (idim_out != ndim_out) {
PyErr_Format(PyExc_ValueError,
"output parameter for reduction operation %s "
"has too many dimensions", funcname);
return NULL;
}
/* Allocate the view */
dtype = PyArray_DESCR(out);
Py_INCREF(dtype);
ret = (PyArrayObject_fields *)PyArray_NewFromDescr(&PyArray_Type,
dtype,
ndim, shape,
strides,
PyArray_DATA(out),
PyArray_FLAGS(out),
NULL);
if (ret == NULL) {
return NULL;
}
Py_INCREF(out);
if (PyArray_SetBaseObject((PyArrayObject *)ret, (PyObject *)out) < 0) {
Py_DECREF(ret);
return NULL;
}
if (need_copy) {
PyArrayObject *ret_copy;
ret_copy = (PyArrayObject *)PyArray_NewLikeArray(
(PyArrayObject *)ret, NPY_ANYORDER, NULL, 0);
if (ret_copy == NULL) {
Py_DECREF(ret);
return NULL;
}
if (PyArray_CopyInto(ret_copy, (PyArrayObject *)ret) != 0) {
Py_DECREF(ret);
Py_DECREF(ret_copy);
return NULL;
}
Py_INCREF(ret);
if (PyArray_SetWritebackIfCopyBase(ret_copy, (PyArrayObject *)ret) < 0) {
Py_DECREF(ret);
Py_DECREF(ret_copy);
return NULL;
}
return ret_copy;
}
else {
return (PyArrayObject *)ret;
}
}
/*
* digitize(x, bins, right=False) returns an array of integers the same length
* as x. The values i returned are such that bins[i - 1] <= x < bins[i] if
* bins is monotonically increasing, or bins[i - 1] > x >= bins[i] if bins
* is monotonically decreasing. Beyond the bounds of bins, returns either
* i = 0 or i = len(bins) as appropriate. If right == True the comparison
* is bins [i - 1] < x <= bins[i] or bins [i - 1] >= x > bins[i]
*/
NPY_NO_EXPORT PyObject *
arr_digitize(PyObject *NPY_UNUSED(self), PyObject *args, PyObject *kwds)
{
PyObject *obj_x = NULL;
PyObject *obj_bins = NULL;
PyArrayObject *arr_x = NULL;
PyArrayObject *arr_bins = NULL;
PyObject *ret = NULL;
npy_intp len_bins;
int monotonic, right = 0;
NPY_BEGIN_THREADS_DEF
static char *kwlist[] = {"x", "bins", "right", NULL};
if (!PyArg_ParseTupleAndKeywords(args, kwds, "OO|i", kwlist,
&obj_x, &obj_bins, &right)) {
goto fail;
}
/* PyArray_SearchSorted will make `x` contiguous even if we don't */
arr_x = (PyArrayObject *)PyArray_FROMANY(obj_x, NPY_DOUBLE, 0, 0,
NPY_ARRAY_CARRAY_RO);
if (arr_x == NULL) {
goto fail;
}
/* TODO: `bins` could be strided, needs change to check_array_monotonic */
arr_bins = (PyArrayObject *)PyArray_FROMANY(obj_bins, NPY_DOUBLE, 1, 1,
NPY_ARRAY_CARRAY_RO);
if (arr_bins == NULL) {
goto fail;
}
len_bins = PyArray_SIZE(arr_bins);
if (len_bins == 0) {
PyErr_SetString(PyExc_ValueError, "bins must have non-zero length");
goto fail;
}
NPY_BEGIN_THREADS_THRESHOLDED(len_bins)
monotonic = check_array_monotonic((const double *)PyArray_DATA(arr_bins),
len_bins);
NPY_END_THREADS
if (monotonic == 0) {
PyErr_SetString(PyExc_ValueError,
"bins must be monotonically increasing or decreasing");
goto fail;
}
/* PyArray_SearchSorted needs an increasing array */
if (monotonic == - 1) {
PyArrayObject *arr_tmp = NULL;
npy_intp shape = PyArray_DIM(arr_bins, 0);
npy_intp stride = -PyArray_STRIDE(arr_bins, 0);
void *data = (void *)(PyArray_BYTES(arr_bins) - stride * (shape - 1));
arr_tmp = (PyArrayObject *)PyArray_New(&PyArray_Type, 1, &shape,
NPY_DOUBLE, &stride, data, 0,
PyArray_FLAGS(arr_bins), NULL);
if (!arr_tmp) {
goto fail;
}
if (PyArray_SetBaseObject(arr_tmp, (PyObject *)arr_bins) < 0) {
Py_DECREF(arr_tmp);
goto fail;
}
arr_bins = arr_tmp;
}
ret = PyArray_SearchSorted(arr_bins, (PyObject *)arr_x,
right ? NPY_SEARCHLEFT : NPY_SEARCHRIGHT, NULL);
if (!ret) {
goto fail;
}
/* If bins is decreasing, ret has bins from end, not start */
if (monotonic == -1) {
npy_intp *ret_data =
(npy_intp *)PyArray_DATA((PyArrayObject *)ret);
npy_intp len_ret = PyArray_SIZE((PyArrayObject *)ret);
NPY_BEGIN_THREADS_THRESHOLDED(len_ret)
while (len_ret--) {
*ret_data = len_bins - *ret_data;
ret_data++;
}
NPY_END_THREADS
}
static PyObject *
array_slice(PyArrayObject *self, Py_ssize_t ilow, Py_ssize_t ihigh)
{
PyArrayObject *ret;
PyArray_Descr *dtype;
Py_ssize_t dim0;
char *data;
npy_intp shape[NPY_MAXDIMS];
if (PyArray_NDIM(self) == 0) {
PyErr_SetString(PyExc_ValueError, "cannot slice a 0-d array");
return NULL;
}
dim0 = PyArray_DIM(self, 0);
if (ilow < 0) {
ilow = 0;
}
else if (ilow > dim0) {
ilow = dim0;
}
if (ihigh < ilow) {
ihigh = ilow;
}
else if (ihigh > dim0) {
ihigh = dim0;
}
data = PyArray_DATA(self);
if (ilow < ihigh) {
data += ilow * PyArray_STRIDE(self, 0);
}
/* Same shape except dimension 0 */
shape[0] = ihigh - ilow;
memcpy(shape+1, PyArray_DIMS(self) + 1,
(PyArray_NDIM(self)-1)*sizeof(npy_intp));
dtype = PyArray_DESCR(self);
Py_INCREF(dtype);
ret = (PyArrayObject *)PyArray_NewFromDescr(Py_TYPE(self), dtype,
PyArray_NDIM(self), shape,
PyArray_STRIDES(self), data,
PyArray_FLAGS(self) & ~(NPY_ARRAY_MASKNA | NPY_ARRAY_OWNMASKNA),
(PyObject *)self);
if (ret == NULL) {
return NULL;
}
Py_INCREF(self);
if (PyArray_SetBaseObject(ret, (PyObject *)self) < 0) {
Py_DECREF(ret);
return NULL;
}
PyArray_UpdateFlags(ret, NPY_ARRAY_UPDATE_ALL);
/* Also take a view of the NA mask if it exists */
if (PyArray_HASMASKNA(self)) {
PyArrayObject_fields *fret = (PyArrayObject_fields *)ret;
fret->maskna_dtype = PyArray_MASKNA_DTYPE(self);
Py_INCREF(fret->maskna_dtype);
data = PyArray_MASKNA_DATA(self);
if (ilow < ihigh) {
data += ilow * PyArray_MASKNA_STRIDES(self)[0];
}
fret->maskna_data = data;
memcpy(fret->maskna_strides, PyArray_MASKNA_STRIDES(self),
PyArray_NDIM(self) * sizeof(npy_intp));
/* This view doesn't own the mask */
fret->flags |= NPY_ARRAY_MASKNA;
fret->flags &= ~NPY_ARRAY_OWNMASKNA;
}
return (PyObject *)ret;
}
/*!
@brief load an ANA f0 file data and header
@param [in] filename
@return [out] data, NULL on failure
*/
static PyObject *pyana_fzread(PyObject *self, PyObject *args) {
// Function arguments
char *filename;
int debug=0;
// Init ANA IO variables
char *header = NULL; // ANA header (comments)
uint8_t *anaraw = NULL; // Raw data
int nd=-1, type=-1, *ds, size=-1, d; // Various properties
// Data manipulation
PyArrayObject *anadata; // Final ndarray
// Parse arguments
if (!PyArg_ParseTuple(args, "s|i", &filename, &debug)) {
return NULL;
}
// Read ANA file
if (debug == 1)
printf("pyana_fzread(): Reading in ANA file\n");
anaraw = ana_fzread(filename, &ds, &nd, &header, &type, &size);
if (NULL == anaraw) {
PyErr_SetString(PyExc_ValueError, "In pyana_fzread: could not read ana file, data returned is NULL.");
return NULL;
}
if (type == -1) {
PyErr_SetString(PyExc_ValueError, "In pyana_fzread: could not read ana file, type invalid.");
return NULL;
}
// Mold into numpy array
npy_intp npy_dims[nd]; // Dimensions array
int npy_type; // Numpy datatype
// Calculate total datasize
if (debug == 1)
printf("pyana_fzread(): Dimensions: ");
for (d=0; d<nd; d++) {
if (debug == 1)
printf("%d ", ds[d]);
// ANA stores dimensions the other way around?
//npy_dims[d] = ds[d];
npy_dims[nd-1-d] = ds[d];
}
if (debug == 1)
printf("\npyana_fzread(): Datasize: %d\n", size);
// Convert datatype from ANA type to PyArray type
switch (type) {
case (INT8): npy_type = PyArray_INT8; break;
case (INT16): npy_type = PyArray_INT16; break;
case (INT32): npy_type = PyArray_INT32; break;
case (FLOAT32): npy_type = PyArray_FLOAT32; break;
case (FLOAT64): npy_type = PyArray_FLOAT64; break;
case (INT64): npy_type = PyArray_INT64; break;
default:
PyErr_SetString(PyExc_ValueError, "In pyana_fzread: datatype of ana file unknown/unsupported.");
return NULL;
}
if (debug == 1)
printf("pyana_fzread(): Read %d bytes, %d dimensions\n", size, nd);
// Create numpy array from the data
anadata = (PyArrayObject*) PyArray_SimpleNewFromData(nd, npy_dims,
npy_type, (void *) anaraw);
// Make sure Python owns the data, so it will free the data after use
PyArray_FLAGS(anadata) |= NPY_OWNDATA;
if (!PyArray_CHKFLAGS(anadata, NPY_OWNDATA)) {
PyErr_SetString(PyExc_RuntimeError, "In pyana_fzread: unable to own the data, will cause memory leak. Aborting");
return NULL;
}
// Return the data in a dict with some metainfo attached
// NB: Use 'N' for PyArrayObject s, because when using 'O' it will create
// another reference count such that the memory will never be deallocated.
// See:
// http://www.mail-archive.com/[email protected]/msg13354.html
// ([Numpy-discussion] numpy CAPI questions)
return Py_BuildValue("{s:N,s:{s:i,s:(ii),s:s}}",
"data", anadata,
"header",
"size", size,
"dims", ds[0], ds[1],
"header", header);
}
PyObject *
reconstruction_coeffs_py (PyObject * self, PyObject * args)
{
double *x, *c, xi;
long int i;
int r, k;
PyObject *bndry, *coeffs;
/*
* parse options
*/
if (!PyArg_ParseTuple (args, "dliiOO", &xi, &i, &r, &k, &bndry, &coeffs))
return NULL;
if ((PyArray_FLAGS (bndry) & NPY_IN_ARRAY) != NPY_IN_ARRAY)
{
PyErr_SetString (PyExc_TypeError, "bndry is not contiguous and/or aligned");
return NULL;
}
Py_INCREF (bndry);
x = (double *) PyArray_DATA (bndry);
if ((PyArray_FLAGS (coeffs) & NPY_IN_ARRAY) != NPY_IN_ARRAY)
{
PyErr_SetString (PyExc_TypeError, "coeffs is not contiguous and/or aligned");
return NULL;
}
Py_INCREF (coeffs);
c = (double *) PyArray_DATA (coeffs);
/*
* dispatch
*/
switch (k)
{
case 3:
coeffs003 (xi, i, r, x, c);
break;
case 4:
coeffs004 (xi, i, r, x, c);
break;
case 5:
coeffs005 (xi, i, r, x, c);
break;
case 6:
coeffs006 (xi, i, r, x, c);
break;
case 7:
coeffs007 (xi, i, r, x, c);
break;
case 8:
coeffs008 (xi, i, r, x, c);
break;
case 9:
coeffs009 (xi, i, r, x, c);
break;
default:
return NULL;
}
/*
* done
*/
Py_INCREF (Py_None);
return Py_None;
}
