| // 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/gavgpool.h> |
| #include <xnnpack/math.h> |
| |
| |
| void xnn_qu8_gavgpool_minmax_ukernel_7p7x__scalar_c1( |
| size_t rows, |
| size_t channels, |
| const uint8_t* input, |
| size_t input_stride, |
| const uint8_t* zero, |
| int32_t* buffer, |
| uint8_t* output, |
| const union xnn_qu8_avgpool_params params[restrict XNN_MIN_ELEMENTS(1)]) |
| { |
| assert(rows > 7); |
| assert(channels != 0); |
| |
| const uint8_t* i0 = input; |
| const uint8_t* i1 = (const uint8_t*) ((uintptr_t) i0 + input_stride); |
| const uint8_t* i2 = (const uint8_t*) ((uintptr_t) i1 + input_stride); |
| const uint8_t* i3 = (const uint8_t*) ((uintptr_t) i2 + input_stride); |
| const uint8_t* i4 = (const uint8_t*) ((uintptr_t) i3 + input_stride); |
| const uint8_t* i5 = (const uint8_t*) ((uintptr_t) i4 + input_stride); |
| const uint8_t* i6 = (const uint8_t*) ((uintptr_t) i5 + input_stride); |
| const size_t input_increment = 7 * input_stride - channels; |
| |
| // First pass. |
| { |
| const int32_t vbias = params->scalar.bias; |
| |
| int32_t* b = buffer; |
| size_t c = channels; |
| do { |
| const uint32_t vi0 = (uint32_t) *i0++; |
| const uint32_t vi1 = (uint32_t) *i1++; |
| const uint32_t vi2 = (uint32_t) *i2++; |
| const uint32_t vi3 = (uint32_t) *i3++; |
| const uint32_t vi4 = (uint32_t) *i4++; |
| const uint32_t vi5 = (uint32_t) *i5++; |
| const uint32_t vi6 = (uint32_t) *i6++; |
| |
| const uint32_t vsum01 = vi0 + vi1; |
| const uint32_t vsum23 = vi2 + vi3; |
| const uint32_t vsum45 = vi4 + vi5; |
| |
| const uint32_t vsum016 = vsum01 + vi6; |
| const uint32_t vsum2345 = vsum23 + vsum45; |
| |
| const uint32_t vsum = vsum016 + vsum2345; |
| const int32_t vacc = vbias + (int32_t) vsum; |
| |
| *b++ = vacc; |
| } while (--c != 0); |
| } |
| // Intermediate passes. |
| for (rows -= 7; rows > 7; rows -= 7) { |
| i0 = (const uint8_t*) ((uintptr_t) i0 + input_increment); |
| i1 = (const uint8_t*) ((uintptr_t) i1 + input_increment); |
| i2 = (const uint8_t*) ((uintptr_t) i2 + input_increment); |
| i3 = (const uint8_t*) ((uintptr_t) i3 + input_increment); |
| i4 = (const uint8_t*) ((uintptr_t) i4 + input_increment); |
| i5 = (const uint8_t*) ((uintptr_t) i5 + input_increment); |
| i6 = (const uint8_t*) ((uintptr_t) i6 + input_increment); |
| |
| int32_t* b = buffer; |
| size_t c = channels; |
| do { |
| const uint32_t vi0 = (uint32_t) *i0++; |
| const uint32_t vi1 = (uint32_t) *i1++; |
| const uint32_t vi2 = (uint32_t) *i2++; |
| const uint32_t vi3 = (uint32_t) *i3++; |
| const uint32_t vi4 = (uint32_t) *i4++; |
| const uint32_t vi5 = (uint32_t) *i5++; |
| const uint32_t vi6 = (uint32_t) *i6++; |
| |
| const uint32_t vsum01 = vi0 + vi1; |
| const uint32_t vsum23 = vi2 + vi3; |
| const uint32_t vsum45 = vi4 + vi5; |
| |
| const uint32_t vsum016 = vsum01 + vi6; |
| const uint32_t vsum2345 = vsum23 + vsum45; |
| |
| const uint32_t vsum = vsum016 + vsum2345; |
| |
| *b++ += (int32_t) vsum; |
| } while (--c != 0); |
| } |
| |
| // Last pass. |
| { |
| const int32_t vmultiplier = params->scalar.multiplier; |
| const int64_t vrounding = params->scalar.rounding; |
| const uint32_t vshift = params->scalar.right_shift; |
| const int32_t voutput_min = params->scalar.output_min_less_zero_point; |
| const int32_t voutput_max = params->scalar.output_max_less_zero_point; |
| const int32_t voutput_zero_point = params->scalar.output_zero_point; |
| |
| i0 = (const uint8_t*) ((uintptr_t) i0 + input_increment); |
| i1 = (const uint8_t*) ((uintptr_t) i1 + input_increment); |
| if (rows < 2) { |
| i1 = zero; |
| } |
| i2 = (const uint8_t*) ((uintptr_t) i2 + input_increment); |
| if (rows <= 2) { |
| i2 = zero; |
| } |
| i3 = (const uint8_t*) ((uintptr_t) i3 + input_increment); |
| if (rows < 4) { |
| i3 = zero; |
| } |
| i4 = (const uint8_t*) ((uintptr_t) i4 + input_increment); |
| if (rows <= 4) { |
| i4 = zero; |
| } |
| i5 = (const uint8_t*) ((uintptr_t) i5 + input_increment); |
| if (rows < 6) { |
| i5 = zero; |
| } |
| i6 = (const uint8_t*) ((uintptr_t) i6 + input_increment); |
| if (rows <= 6) { |
| i6 = zero; |
| } |
| |
| int32_t* b = buffer; |
| size_t c = channels; |
| do { |
| int32_t vacc = *b++; |
| const uint32_t vi0 = (uint32_t) *i0++; |
| const uint32_t vi1 = (uint32_t) *i1++; |
| const uint32_t vi2 = (uint32_t) *i2++; |
| const uint32_t vi3 = (uint32_t) *i3++; |
| const uint32_t vi4 = (uint32_t) *i4++; |
| const uint32_t vi5 = (uint32_t) *i5++; |
| const uint32_t vi6 = (uint32_t) *i6++; |
| |
| const uint32_t vsum01 = vi0 + vi1; |
| const uint32_t vsum23 = vi2 + vi3; |
| const uint32_t vsum45 = vi4 + vi5; |
| |
| const uint32_t vsum016 = vsum01 + vi6; |
| const uint32_t vsum2345 = vsum23 + vsum45; |
| |
| const uint32_t vsum = vsum016 + vsum2345; |
| vacc += (int32_t) vsum; |
| |
| const int64_t vproduct = (int64_t) vacc * (int64_t) vmultiplier; |
| const int64_t vadjusted_product = vproduct - (int64_t) (vacc < 0); |
| int32_t vout = (int32_t) asr_s64(vadjusted_product + vrounding, vshift); |
| vout = vout < voutput_min ? voutput_min : vout; |
| vout = vout > voutput_max ? voutput_max : vout; |
| vout += voutput_zero_point; |
| |
| *output++ = (uint8_t) vout; |
| } while (--c != 0); |
| } |
| } |