def PyMemoryView_FromBuffer(space, view):
"""Create a memoryview object wrapping the given buffer structure view.
The memoryview object then owns the buffer represented by view, which
means you shouldn't try to call PyBuffer_Release() yourself: it
will be done on deallocation of the memoryview object."""
if not view.c_buf:
raise oefmt(
space.w_ValueError,
"cannot make memory view from a buffer with a NULL data "
"pointer")
buf = CBuffer(space, view.c_buf, view.c_len, view.c_obj)
return space.wrap(W_MemoryView(buf))
def PyMemoryView_FromMemory(space, mem, size, flags):
"""Expose a raw memory area as a view of contiguous bytes. flags can be
PyBUF_READ or PyBUF_WRITE. view->format is set to "B" (unsigned bytes).
The memoryview has complete buffer information.
"""
readonly = int(widen(flags) == PyBUF_WRITE)
view = CPyBuffer(space,
cts.cast('void*', mem),
size,
None,
readonly=readonly)
w_mview = W_MemoryView(view)
return w_mview
def newmemoryview(self, view):
return W_MemoryView(view)
def newbuffer(self, w_obj):
return W_MemoryView(w_obj)
def newmemoryview(self, w_obj):
return W_MemoryView(w_obj)
def getbuffer_w(self, space):
return space.wrap(W_MemoryView(BytesIOBuffer(self)))