| // 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/maxpool.h> |
| |
| |
| void xnn_u8_maxpool_minmax_ukernel_9p8x__scalar_c1( |
| size_t output_pixels, |
| size_t kernel_elements, |
| size_t channels, |
| const uint8_t** input, |
| size_t input_offset, |
| uint8_t* output, |
| size_t input_increment, |
| size_t output_increment, |
| const union xnn_u8_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) |
| { |
| assert(output_pixels != 0); |
| assert(kernel_elements != 0); |
| assert(channels != 0); |
| |
| const uint8_t voutput_max = params->scalar.max; |
| const uint8_t voutput_min = params->scalar.min; |
| do { |
| uint8_t* o = output; |
| { |
| const uint8_t* i0 = *input++; |
| const uint8_t* i1 = *input++; |
| const uint8_t* i2 = *input++; |
| const uint8_t* i3 = *input++; |
| const uint8_t* i4 = *input++; |
| const uint8_t* i5 = *input++; |
| const uint8_t* i6 = *input++; |
| const uint8_t* i7 = *input++; |
| const uint8_t* i8 = *input++; |
| i0 = (const uint8_t*) ((uintptr_t) i0 + input_offset); |
| i1 = (const uint8_t*) ((uintptr_t) i1 + input_offset); |
| i2 = (const uint8_t*) ((uintptr_t) i2 + input_offset); |
| i3 = (const uint8_t*) ((uintptr_t) i3 + input_offset); |
| i4 = (const uint8_t*) ((uintptr_t) i4 + input_offset); |
| i5 = (const uint8_t*) ((uintptr_t) i5 + input_offset); |
| i6 = (const uint8_t*) ((uintptr_t) i6 + input_offset); |
| i7 = (const uint8_t*) ((uintptr_t) i7 + input_offset); |
| i8 = (const uint8_t*) ((uintptr_t) i8 + input_offset); |
| if (kernel_elements < 2) { |
| i1 = i0; |
| } |
| if (kernel_elements <= 2) { |
| i2 = i0; |
| } |
| if (kernel_elements < 4) { |
| i3 = i0; |
| } |
| if (kernel_elements <= 4) { |
| i4 = i0; |
| } |
| if (kernel_elements < 6) { |
| i5 = i0; |
| } |
| if (kernel_elements <= 6) { |
| i6 = i0; |
| } |
| if (kernel_elements < 8) { |
| i7 = i0; |
| } |
| if (kernel_elements <= 8) { |
| i8 = i0; |
| } |
| |
| size_t c = channels; |
| do { |
| const uint8_t vi0 = *i0++; |
| const uint8_t vi1 = *i1++; |
| const uint8_t vi2 = *i2++; |
| const uint8_t vi3 = *i3++; |
| const uint8_t vi4 = *i4++; |
| const uint8_t vi5 = *i5++; |
| const uint8_t vi6 = *i6++; |
| const uint8_t vi7 = *i7++; |
| const uint8_t vi8 = *i8++; |
| |
| const uint8_t vmax01 = vi0 > vi1 ? vi0 : vi1; |
| const uint8_t vmax23 = vi2 > vi3 ? vi2 : vi3; |
| const uint8_t vmax45 = vi4 > vi5 ? vi4 : vi5; |
| const uint8_t vmax67 = vi6 > vi7 ? vi6 : vi7; |
| const uint8_t vmax018 = vmax01 > vi8 ? vmax01 : vi8; |
| |
| const uint8_t vmax2345 = vmax23 > vmax45 ? vmax23 : vmax45; |
| const uint8_t vmax01678 = vmax018 > vmax67 ? vmax018 : vmax67; |
| |
| uint8_t vout = vmax2345 > vmax01678 ? vmax2345 : vmax01678; |
| vout = vout > voutput_max ? voutput_max : vout; |
| vout = vout < voutput_min ? voutput_min : vout; |
| |
| *o++ = vout; |
| } while (--c != 0); |
| } |
| |
| for (ptrdiff_t k = (ptrdiff_t) kernel_elements - 9; k > 0; k -= 8) { |
| const uint8_t* i0 = *input++; |
| const uint8_t* i1 = *input++; |
| const uint8_t* i2 = *input++; |
| const uint8_t* i3 = *input++; |
| const uint8_t* i4 = *input++; |
| const uint8_t* i5 = *input++; |
| const uint8_t* i6 = *input++; |
| const uint8_t* i7 = *input++; |
| i0 = (const uint8_t*) ((uintptr_t) i0 + input_offset); |
| i1 = (const uint8_t*) ((uintptr_t) i1 + input_offset); |
| i2 = (const uint8_t*) ((uintptr_t) i2 + input_offset); |
| i3 = (const uint8_t*) ((uintptr_t) i3 + input_offset); |
| i4 = (const uint8_t*) ((uintptr_t) i4 + input_offset); |
| i5 = (const uint8_t*) ((uintptr_t) i5 + input_offset); |
| i6 = (const uint8_t*) ((uintptr_t) i6 + input_offset); |
| i7 = (const uint8_t*) ((uintptr_t) i7 + input_offset); |
| if (k < 2) { |
| i1 = i0; |
| } |
| if (k <= 2) { |
| i2 = i0; |
| } |
| if (k < 4) { |
| i3 = i0; |
| } |
| if (k <= 4) { |
| i4 = i0; |
| } |
| if (k < 6) { |
| i5 = i0; |
| } |
| if (k <= 6) { |
| i6 = i0; |
| } |
| if (k < 8) { |
| i7 = i0; |
| } |
| |
| o = output; |
| size_t c = channels; |
| do { |
| const uint8_t vi0 = *i0++; |
| const uint8_t vi1 = *i1++; |
| const uint8_t vi2 = *i2++; |
| const uint8_t vi3 = *i3++; |
| const uint8_t vi4 = *i4++; |
| const uint8_t vi5 = *i5++; |
| const uint8_t vi6 = *i6++; |
| const uint8_t vi7 = *i7++; |
| const uint8_t vi8 = *o; |
| |
| const uint8_t vmax01 = vi0 > vi1 ? vi0 : vi1; |
| const uint8_t vmax23 = vi2 > vi3 ? vi2 : vi3; |
| const uint8_t vmax45 = vi4 > vi5 ? vi4 : vi5; |
| const uint8_t vmax67 = vi6 > vi7 ? vi6 : vi7; |
| const uint8_t vmax018 = vmax01 > vi8 ? vmax01 : vi8; |
| |
| const uint8_t vmax2345 = vmax23 > vmax45 ? vmax23 : vmax45; |
| const uint8_t vmax01678 = vmax018 > vmax67 ? vmax018 : vmax67; |
| |
| uint8_t vout = vmax2345 > vmax01678 ? vmax2345 : vmax01678; |
| vout = vout > voutput_max ? voutput_max : vout; |
| vout = vout < voutput_min ? voutput_min : vout; |
| |
| *o++ = vout; |
| } while (--c != 0); |
| } |
| input = (const uint8_t**) ((uintptr_t) input + input_increment); |
| output = (uint8_t*) ((uintptr_t) o + output_increment); |
| } while (--output_pixels != 0); |
| } |