def memcpy(dst, src):
assert (dst.flags['C_CONTIGUOUS'])
assert (src.shape == dst.shape)
dst_space = _string2space(_get_space(dst))
src_space = _string2space(_get_space(src))
count = dst.nbytes
_check(
_bf.bfMemcpy(dst.ctypes.data, dst_space, src.ctypes.data, src_space,
count))
return dst
def memcpy2D(dst, src):
assert (len(dst.shape) == 2)
assert (src.shape == dst.shape)
dst_space = _string2space(_get_space(dst))
src_space = _string2space(_get_space(src))
height, width = dst.shape
width_bytes = width * dst.dtype.itemsize
_check(
_bf.bfMemcpy2D(dst.ctypes.data, dst.strides[0], dst_space,
src.ctypes.data, src.strides[0], src_space, width_bytes,
height))
def init(self, coeffs, decim=1, space='cuda'):
space = _string2space(space)
psize = None
_check(
_bf.bfFirInit(self.obj,
asarray(coeffs).as_BFarray(), decim, space, 0,
psize))
def memset2D(dst, val=0):
assert (len(dst.shape) == 2)
space = _string2space(_get_space(dst))
height, width = dst.shape
width_bytes = width * dst.dtype.itemsize
_check(
_bf.bfMemset2D(dst.ctypes.data, dst.strides[0], space, val,
width_bytes, height))
def __init__(self, space='system', name=None, core=None):
if name is None:
name = str(uuid4())
name = _slugify(name)
try:
name = name.encode()
except AttributeError:
# Python2 catch
pass
space = _string2space(space)
#self.obj = None
#self.obj = _get(_bf.bfRingCreate(name=name, space=space), retarg=0)
BifrostObject.__init__(self, _bf.bfRingCreate, _bf.bfRingDestroy, name,
space)
if core is not None:
try:
_check(_bf.bfRingSetAffinity(self.obj, core))
except RuntimeError:
pass
def __init__(self, space='system', name=None, owner=None, core=None):
# If this is non-None, then the object is wrapping a base Ring instance
self.base = None
self.space = space
if name is None:
name = 'ring_%i' % Ring.instance_count
Ring.instance_count += 1
name = _slugify(name)
try:
name = name.encode()
except AttributeError:
# Python2 catch
pass
BifrostObject.__init__(self, _bf.bfRingCreate, _bf.bfRingDestroy, name,
_string2space(self.space))
if core is not None:
try:
_check(_bf.bfRingSetAffinity(self.obj, core))
except RuntimeError:
pass
self.owner = owner
self.header_transform = None
def raw_free(ptr, space='auto'):
_check(_bf.bfFree(ptr, _string2space(space)))
def raw_malloc(size, space):
ptr = ctypes.c_void_p()
_check(_bf.bfMalloc(ptr, size, _string2space(space)))
return ptr.value
def memset(dst, val=0):
assert (dst.flags['C_CONTIGUOUS'])
space = _string2space(_get_space(dst))
count = dst.nbytes
_check(_bf.bfMemset(dst.ctypes.data, space, val, count))
def init(self, nchan, max_delay, f0, df, exponent=-2.0, space='cuda'):
space = _string2space(space)
psize = None
_check(
_bf.bfFdmtInit(self.obj, nchan, max_delay, f0, df, exponent, space,
0, psize))