| // Auto-generated file. Do not edit! |
| // Template: src/f32-dwconv2d-chw/3x3s2p1-scalar.c.in |
| // Generator: tools/xngen |
| // |
| // Copyright 2020 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/dwconv.h> |
| #include <xnnpack/math.h> |
| |
| |
| void xnn_f32_dwconv2d_chw_ukernel_3x3s2p1__scalar_1x1_acc4( |
| size_t input_height, |
| size_t input_width, |
| const float* input, |
| const float* weights, |
| const float* zero, |
| float* output, |
| uint32_t padding_top, |
| const union xnn_f32_chw_params params[restrict XNN_MIN_ELEMENTS(1)]) |
| { |
| assert(input_height != 0); |
| assert(input_width != 0); |
| assert(input_width % sizeof(float) == 0); |
| assert(padding_top >= 0); |
| assert(padding_top <= 1); |
| |
| const float vmin = params->scalar.min; |
| const float vmax = params->scalar.max; |
| |
| const float vbias = weights[0]; |
| const float vk00 = weights[1]; |
| const float vk01 = weights[2]; |
| const float vk02 = weights[3]; |
| const float vk10 = weights[4]; |
| const float vk11 = weights[5]; |
| const float vk12 = weights[6]; |
| const float vk20 = weights[7]; |
| const float vk21 = weights[8]; |
| const float vk22 = weights[9]; |
| |
| |
| const float* i0 = (const float*) ((uintptr_t) input - ((-padding_top) & input_width)); |
| const float* i1 = (const float*) ((uintptr_t) i0 + input_width); |
| if XNN_UNPREDICTABLE(padding_top != 0) { |
| i0 = zero; |
| } |
| const float* i2 = (const float*) ((uintptr_t) i1 + input_width); |
| |
| float* o0 = output; |
| |
| size_t padded_input_height = input_height + padding_top + 1 /* padding bottom */; |
| size_t output_height = (padded_input_height - 3 /* kernel size */ + 2 /* subsampling */) / 2; |
| do { |
| if XNN_UNPREDICTABLE(padded_input_height < 4) { |
| i2 = zero; |
| } |
| |
| float vi0x0 = 0.0f; |
| float vi1x0 = 0.0f; |
| float vi2x0 = 0.0f; |
| |
| size_t w = input_width; |
| for (; w >= 2 * sizeof(float); w -= 2 * sizeof(float)) { |
| const float vi0x1 = i0[0]; |
| const float vi1x1 = i1[0]; |
| const float vi2x1 = i2[0]; |
| |
| float vo0p0 = vbias + vi0x0 * vk00; |
| float vo0p1 = vi1x0 * vk10; |
| float vo0p2 = vi2x0 * vk20; |
| |
| const float vi0x2 = i0[1]; |
| i0 += 2; |
| const float vi1x2 = i1[1]; |
| i1 += 2; |
| const float vi2x2 = i2[1]; |
| i2 += 2; |
| |
| float vo0p3 = vi0x1 * vk01; |
| vo0p0 += vi1x1 * vk11; |
| vo0p1 += vi2x1 * vk21; |
| |
| vi0x0 = vi0x2; |
| vi1x0 = vi1x2; |
| vi2x0 = vi2x2; |
| |
| vo0p2 += vi0x2 * vk02; |
| vo0p3 += vi1x2 * vk12; |
| vo0p0 += vi2x2 * vk22; |
| |
| vo0p0 += vo0p1; |
| vo0p2 += vo0p3; |
| vo0p0 += vo0p2; |
| |
| float vo0 = math_max_f32(vo0p0, vmin); |
| |
| vo0 = math_min_f32(vo0, vmax); |
| |
| *o0++ = vo0; |
| } |
| // Potentially process the last pixel. |
| assert(w <= 1 * sizeof(float)); |
| if (w != 0) { |
| const float vi0x1 = *i0++; |
| const float vi1x1 = *i1++; |
| const float vi2x1 = *i2++; |
| |
| float vo0p0 = vbias + vi0x0 * vk00; |
| float vo0p1 = vi1x0 * vk10; |
| float vo0p2 = vi2x0 * vk20; |
| |
| float vo0p3 = vi0x1 * vk01; |
| vo0p0 += vi1x1 * vk11; |
| vo0p1 += vi2x1 * vk21; |
| |
| vo0p0 += vo0p1; |
| vo0p2 += vo0p3; |
| vo0p0 += vo0p2; |
| |
| float vo0 = math_max_f32(vo0p0, vmin); |
| |
| vo0 = math_min_f32(vo0, vmax); |
| |
| *o0++ = vo0; |
| } |
| |
| i0 = (const float*) ((uintptr_t) i1); |
| i1 = (const float*) ((uintptr_t) i2); |
| i2 = (const float*) ((uintptr_t) i1 + input_width); |
| |
| |
| output_height -= 1; |
| padded_input_height -= 2; |
| } while (output_height != 0); |
| } |