void single(char *dst, char *const *src)
{
// Allocate a temporary buffer on the heap
array buffer = empty(buffer_tp);
char *buffer_data = buffer.get_readwrite_originptr();
ckernel_prefix *first = get_child_ckernel();
expr_single_t first_func = first->get_function<expr_single_t>();
ckernel_prefix *second = get_child_ckernel(second_offset);
expr_single_t second_func = second->get_function<expr_single_t>();
first_func(buffer_data, src, first);
second_func(dst, &buffer_data, second);
}
void destruct_children()
{
// The first child ckernel
get_child_ckernel()->destroy();
// The second child ckernel
destroy_child_ckernel(second_offset);
}
void strided(char *dst, intptr_t dst_stride, char *const *src,
const intptr_t *src_stride, size_t count)
{
// Allocate a temporary buffer on the heap
array buffer = empty(buffer_shape[0], buffer_tp);
char *buffer_data = buffer.get_readwrite_originptr();
intptr_t buffer_stride =
reinterpret_cast<const fixed_dim_type_arrmeta *>(
buffer.get_arrmeta())->stride;
ckernel_prefix *first = get_child_ckernel();
expr_strided_t first_func = first->get_function<expr_strided_t>();
ckernel_prefix *second = get_child_ckernel(second_offset);
expr_strided_t second_func = second->get_function<expr_strided_t>();
char *src0 = src[0];
intptr_t src0_stride = src_stride[0];
size_t chunk_size =
std::min(count, static_cast<size_t>(DYND_BUFFER_CHUNK_SIZE));
first_func(buffer_data, buffer_stride, &src0, src_stride, chunk_size,
first);
second_func(dst, dst_stride, &buffer_data, &buffer_stride, chunk_size,
second);
count -= chunk_size;
while (count) {
src0 += chunk_size * src0_stride;
dst += chunk_size * dst_stride;
reset_strided_buffer_array(buffer);
chunk_size =
std::min(count, static_cast<size_t>(DYND_BUFFER_CHUNK_SIZE));
first_func(buffer_data, buffer_stride, &src0, src_stride, chunk_size,
first);
second_func(dst, dst_stride, &buffer_data, &buffer_stride, chunk_size,
second);
count -= chunk_size;
}
}
/**
* Returns the child ckernel immediately following this one.
*/
inline ckernel_prefix *get_child_ckernel()
{
return get_child_ckernel(sizeof(self_type));
}