| // Copyright 2019 Google LLC |
| // |
| // This source code is licensed under the BSD-style license found in the |
| // LICENSE file in the root directory of this source tree. |
| |
| #include <assert.h> |
| |
| #include <xnnpack/pad.h> |
| |
| |
| void xnn_x32_pad_ukernel__scalar_float( |
| size_t rows, |
| size_t channels, |
| size_t pre_padding, |
| size_t post_padding, |
| const uint32_t* fill_value, |
| const uint32_t* input, |
| size_t input_stride, |
| uint32_t* output, |
| size_t output_stride) |
| { |
| assert(channels % sizeof(uint32_t) == 0); |
| assert(pre_padding % sizeof(uint32_t) == 0); |
| assert(post_padding % sizeof(uint32_t) == 0); |
| assert(fill_value != NULL); |
| |
| const size_t input_increment = input_stride - channels; |
| const size_t output_increment = output_stride - (pre_padding + channels + post_padding); |
| |
| const float vfill = *((const float*) fill_value); |
| const float* i = (const float*) input; |
| float* o = (float*) output; |
| do { |
| // Pre-pad input channels. |
| size_t l = pre_padding; |
| if XNN_LIKELY(l != 0) { |
| do { |
| *o++ = vfill; |
| l -= sizeof(uint32_t); |
| } while (l != 0); |
| } |
| |
| // Copy input channels. |
| size_t c = channels; |
| for (; c >= 4 * sizeof(uint32_t); c -= 4 * sizeof(uint32_t)) { |
| o[0] = i[0]; |
| o[1] = i[1]; |
| o[2] = i[2]; |
| o[3] = i[3]; |
| i += 4; |
| o += 4; |
| } |
| if XNN_UNLIKELY(c != 0) { |
| do { |
| *o++ = *i++; |
| c -= sizeof(uint32_t); |
| } while (c != 0); |
| } |
| |
| // Post-pad input channels. |
| size_t r = post_padding; |
| if XNN_LIKELY(r != 0) { |
| do { |
| *o++ = vfill; |
| r -= sizeof(uint32_t); |
| } while (r != 0); |
| } |
| |
| i = (const float*) ((uintptr_t) i + input_increment); |
| o = (float*) ((uintptr_t) o + output_increment); |
| } while (--rows != 0); |
| } |