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// hack needed as long as pygtk returns an old Numeric array instead of a NumPy one
// http://bugzilla.gnome.org/show_bug.cgi?id=397544
#include "Python.h"
typedef struct {
PyObject_HEAD
char *data;
int nd;
int *dimensions, *strides;
PyObject *base;
void *descr;
int flags;
PyObject *weakreflist;
} OldNumeric_PyArrayObject;
PyObject * gdkpixbuf_numeric2numpy(PyObject * gdk_pixbuf_pixels_array)
{
// in case the bug is fixed in pygtk
if (PyArray_Check(gdk_pixbuf_pixels_array)) {
Py_INCREF(gdk_pixbuf_pixels_array);
return gdk_pixbuf_pixels_array;
}
// we should type-check our argument, but I guess the assertions below will suffice
OldNumeric_PyArrayObject * arr = (OldNumeric_PyArrayObject*)gdk_pixbuf_pixels_array;
assert(arr->nd == 3);
npy_intp dims[3];
dims[0] = arr->dimensions[0];
dims[1] = arr->dimensions[1];
dims[2] = arr->dimensions[2];
PyArrayObject * result = (PyArrayObject *)PyArray_SimpleNewFromData(arr->nd,
dims,
PyArray_UBYTE,
arr->data);
if (result == NULL) return NULL;
// pygtk sets only strides[0]
if (result->strides[0] != arr->strides[0]) {
result->strides[0] = arr->strides[0];
// note: http://bugzilla.gnome.org/show_bug.cgi?id=447388
result->flags &= ~NPY_CONTIGUOUS;
}
Py_INCREF(gdk_pixbuf_pixels_array);
result->base = gdk_pixbuf_pixels_array;
return PyArray_Return(result);
}
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