def codegen(context, builder, signature, args):
[
dst_val, dst_offset_val, src_val, src_offset_val, nbytes_val,
align_val
] = args
src_ptr = builder.gep(src_val, [src_offset_val])
dst_ptr = builder.gep(dst_val, [dst_offset_val])
cgutils.raw_memcpy(builder, dst_ptr, src_ptr, nbytes_val, align_val)
return context.get_dummy_value()
def _image_to_array(context, builder, shapes_array, arrtype, data, img):
# allocate array
shapes = cgutils.unpack_tuple(builder, builder.load(shapes_array))
ary = _empty_nd_impl(context, builder, arrtype, shapes)
cgutils.raw_memcpy(builder,
ary.data,
builder.load(data),
ary.nitems,
ary.itemsize,
align=1)
# clean up cv::Mat image
fnty = lir.FunctionType(lir.VoidType(), [lir.IntType(8).as_pointer()])
fn_release = builder.module.get_or_insert_function(fnty,
name="cv_mat_release")
builder.call(fn_release, [img])
return impl_ret_new_ref(context, builder, arrtype, ary._getvalue())
def codegen(context, builder, sig, args):
assert (len(args) == 2)
data = args[0]
shape = args[1]
# XXX: unnecessary allocation and copy, reuse data pointer
shape_list = cgutils.unpack_tuple(builder, shape, shape.type.count)
ary = _empty_nd_impl(context, builder, arr_typ, shape_list)
cgutils.raw_memcpy(builder,
ary.data,
data,
ary.nitems,
ary.itemsize,
align=1)
# clean up image buffer
fnty = lir.FunctionType(lir.VoidType(), [lir.IntType(8).as_pointer()])
fn_release = builder.module.get_or_insert_function(
fnty, name="cv_delete_buf")
builder.call(fn_release, [data])
return impl_ret_new_ref(context, builder, sig.return_type,
ary._getvalue())