1 // Auto-generated file. Do not edit!
2 // Template: src/f32-dwconv2d-chw/3x3s2p1-scalar.c.in
3 // Generator: tools/xngen
4 //
5 // Copyright 2020 Google LLC
6 //
7 // This source code is licensed under the BSD-style license found in the
8 // LICENSE file in the root directory of this source tree.
9
10 #include <assert.h>
11
12 #include <xnnpack/dwconv.h>
13 #include <xnnpack/math.h>
14
15
xnn_f32_dwconv2d_chw_ukernel_3x3s2p1__scalar_4x1(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)])16 void xnn_f32_dwconv2d_chw_ukernel_3x3s2p1__scalar_4x1(
17 size_t input_height,
18 size_t input_width,
19 const float* input,
20 const float* weights,
21 const float* zero,
22 float* output,
23 uint32_t padding_top,
24 const union xnn_f32_chw_params params[restrict XNN_MIN_ELEMENTS(1)])
25 {
26 assert(input_height != 0);
27 assert(input_width != 0);
28 assert(input_width % sizeof(float) == 0);
29 assert(padding_top >= 0);
30 assert(padding_top <= 1);
31
32 const float vmin = params->scalar.min;
33 const float vmax = params->scalar.max;
34
35 const float vbias = weights[0];
36 const float vk00 = weights[1];
37 const float vk01 = weights[2];
38 const float vk02 = weights[3];
39 const float vk10 = weights[4];
40 const float vk11 = weights[5];
41 const float vk12 = weights[6];
42 const float vk20 = weights[7];
43 const float vk21 = weights[8];
44 const float vk22 = weights[9];
45
46 const size_t output_width = round_down_po2((input_width + (2 /* padding */ - 3 /* kernel size */ + 2 /* subsampling */) * sizeof(float)) / 2, sizeof(float));
47
48 const float* i0 = (const float*) ((uintptr_t) input - ((-padding_top) & input_width));
49 const float* i1 = (const float*) ((uintptr_t) i0 + input_width);
50 if XNN_UNPREDICTABLE(padding_top != 0) {
51 i0 = zero;
52 }
53 const float* i2 = (const float*) ((uintptr_t) i1 + input_width);
54 const float* i3 = (const float*) ((uintptr_t) i2 + input_width);
55 const float* i4 = (const float*) ((uintptr_t) i3 + input_width);
56 const float* i5 = (const float*) ((uintptr_t) i4 + input_width);
57 const float* i6 = (const float*) ((uintptr_t) i5 + input_width);
58 const float* i7 = (const float*) ((uintptr_t) i6 + input_width);
59 const float* i8 = (const float*) ((uintptr_t) i7 + input_width);
60
61 float* o0 = output;
62 float* o1 = (float*) ((uintptr_t) o0 + output_width);
63 float* o2 = (float*) ((uintptr_t) o1 + output_width);
64 float* o3 = (float*) ((uintptr_t) o2 + output_width);
65
66 size_t padded_input_height = input_height + padding_top + 1 /* padding bottom */;
67 size_t output_height = (padded_input_height - 3 /* kernel size */ + 2 /* subsampling */) / 2;
68 do {
69 if XNN_UNPREDICTABLE(padded_input_height < 4) {
70 i2 = zero;
71 }
72 if XNN_UNPREDICTABLE(padded_input_height < 5) {
73 i3 = zero;
74 o1 = o0;
75 }
76 if XNN_UNPREDICTABLE(padded_input_height < 6) {
77 i4 = zero;
78 }
79 if XNN_UNPREDICTABLE(padded_input_height < 7) {
80 i5 = zero;
81 o2 = o1;
82 }
83 if XNN_UNPREDICTABLE(padded_input_height < 8) {
84 i6 = zero;
85 }
86 if XNN_UNPREDICTABLE(padded_input_height < 9) {
87 i7 = zero;
88 o3 = o2;
89 }
90 if XNN_UNPREDICTABLE(padded_input_height < 10) {
91 i8 = zero;
92 }
93
94 float vi0x0 = 0.0f;
95 float vi1x0 = 0.0f;
96 float vi2x0 = 0.0f;
97 float vi3x0 = 0.0f;
98 float vi4x0 = 0.0f;
99 float vi5x0 = 0.0f;
100 float vi6x0 = 0.0f;
101 float vi7x0 = 0.0f;
102 float vi8x0 = 0.0f;
103
104 size_t w = input_width;
105 for (; w >= 2 * sizeof(float); w -= 2 * sizeof(float)) {
106 const float vi0x1 = i0[0];
107 const float vi1x1 = i1[0];
108 const float vi2x1 = i2[0];
109 const float vi3x1 = i3[0];
110 const float vi4x1 = i4[0];
111 const float vi5x1 = i5[0];
112 const float vi6x1 = i6[0];
113 const float vi7x1 = i7[0];
114 const float vi8x1 = i8[0];
115
116 float vo0p0 = vbias + vi0x0 * vk00;
117 float vo1p0 = vbias + vi2x0 * vk00;
118 float vo2p0 = vbias + vi4x0 * vk00;
119 float vo3p0 = vbias + vi6x0 * vk00;
120 vo0p0 += vi1x0 * vk10;
121 vo1p0 += vi3x0 * vk10;
122 vo2p0 += vi5x0 * vk10;
123 vo3p0 += vi7x0 * vk10;
124 vo0p0 += vi2x0 * vk20;
125 vo1p0 += vi4x0 * vk20;
126 vo2p0 += vi6x0 * vk20;
127 vo3p0 += vi8x0 * vk20;
128
129 const float vi0x2 = i0[1];
130 i0 += 2;
131 const float vi1x2 = i1[1];
132 i1 += 2;
133 const float vi2x2 = i2[1];
134 i2 += 2;
135 const float vi3x2 = i3[1];
136 i3 += 2;
137 const float vi4x2 = i4[1];
138 i4 += 2;
139 const float vi5x2 = i5[1];
140 i5 += 2;
141 const float vi6x2 = i6[1];
142 i6 += 2;
143 const float vi7x2 = i7[1];
144 i7 += 2;
145 const float vi8x2 = i8[1];
146 i8 += 2;
147
148 vo0p0 += vi0x1 * vk01;
149 vo1p0 += vi2x1 * vk01;
150 vo2p0 += vi4x1 * vk01;
151 vo3p0 += vi6x1 * vk01;
152 vo0p0 += vi1x1 * vk11;
153 vo1p0 += vi3x1 * vk11;
154 vo2p0 += vi5x1 * vk11;
155 vo3p0 += vi7x1 * vk11;
156 vo0p0 += vi2x1 * vk21;
157 vo1p0 += vi4x1 * vk21;
158 vo2p0 += vi6x1 * vk21;
159 vo3p0 += vi8x1 * vk21;
160
161 vi0x0 = vi0x2;
162 vi1x0 = vi1x2;
163 vi2x0 = vi2x2;
164 vi3x0 = vi3x2;
165 vi4x0 = vi4x2;
166 vi5x0 = vi5x2;
167 vi6x0 = vi6x2;
168 vi7x0 = vi7x2;
169 vi8x0 = vi8x2;
170
171 vo0p0 += vi0x2 * vk02;
172 vo1p0 += vi2x2 * vk02;
173 vo2p0 += vi4x2 * vk02;
174 vo3p0 += vi6x2 * vk02;
175 vo0p0 += vi1x2 * vk12;
176 vo1p0 += vi3x2 * vk12;
177 vo2p0 += vi5x2 * vk12;
178 vo3p0 += vi7x2 * vk12;
179 vo0p0 += vi2x2 * vk22;
180 vo1p0 += vi4x2 * vk22;
181 vo2p0 += vi6x2 * vk22;
182 vo3p0 += vi8x2 * vk22;
183
184
185 float vo0 = math_max_f32(vo0p0, vmin);
186 float vo1 = math_max_f32(vo1p0, vmin);
187 float vo2 = math_max_f32(vo2p0, vmin);
188 float vo3 = math_max_f32(vo3p0, vmin);
189
190 vo0 = math_min_f32(vo0, vmax);
191 vo1 = math_min_f32(vo1, vmax);
192 vo2 = math_min_f32(vo2, vmax);
193 vo3 = math_min_f32(vo3, vmax);
194
195 *o3++ = vo3;
196 *o2++ = vo2;
197 *o1++ = vo1;
198 *o0++ = vo0;
199 }
200 // Potentially process the last pixel.
201 assert(w <= 1 * sizeof(float));
202 if (w != 0) {
203 const float vi0x1 = *i0++;
204 const float vi1x1 = *i1++;
205 const float vi2x1 = *i2++;
206 const float vi3x1 = *i3++;
207 const float vi4x1 = *i4++;
208 const float vi5x1 = *i5++;
209 const float vi6x1 = *i6++;
210 const float vi7x1 = *i7++;
211 const float vi8x1 = *i8++;
212
213 float vo0p0 = vbias + vi0x0 * vk00;
214 float vo1p0 = vbias + vi2x0 * vk00;
215 float vo2p0 = vbias + vi4x0 * vk00;
216 float vo3p0 = vbias + vi6x0 * vk00;
217 vo0p0 += vi1x0 * vk10;
218 vo1p0 += vi3x0 * vk10;
219 vo2p0 += vi5x0 * vk10;
220 vo3p0 += vi7x0 * vk10;
221 vo0p0 += vi2x0 * vk20;
222 vo1p0 += vi4x0 * vk20;
223 vo2p0 += vi6x0 * vk20;
224 vo3p0 += vi8x0 * vk20;
225
226 vo0p0 += vi0x1 * vk01;
227 vo1p0 += vi2x1 * vk01;
228 vo2p0 += vi4x1 * vk01;
229 vo3p0 += vi6x1 * vk01;
230 vo0p0 += vi1x1 * vk11;
231 vo1p0 += vi3x1 * vk11;
232 vo2p0 += vi5x1 * vk11;
233 vo3p0 += vi7x1 * vk11;
234 vo0p0 += vi2x1 * vk21;
235 vo1p0 += vi4x1 * vk21;
236 vo2p0 += vi6x1 * vk21;
237 vo3p0 += vi8x1 * vk21;
238
239
240 float vo0 = math_max_f32(vo0p0, vmin);
241 float vo1 = math_max_f32(vo1p0, vmin);
242 float vo2 = math_max_f32(vo2p0, vmin);
243 float vo3 = math_max_f32(vo3p0, vmin);
244
245 vo0 = math_min_f32(vo0, vmax);
246 vo1 = math_min_f32(vo1, vmax);
247 vo2 = math_min_f32(vo2, vmax);
248 vo3 = math_min_f32(vo3, vmax);
249
250 *o3++ = vo3;
251 *o2++ = vo2;
252 *o1++ = vo1;
253 *o0++ = vo0;
254 }
255
256 i0 = (const float*) ((uintptr_t) i7);
257 i1 = (const float*) ((uintptr_t) i8);
258 i2 = (const float*) ((uintptr_t) i1 + input_width);
259 i3 = (const float*) ((uintptr_t) i2 + input_width);
260 i4 = (const float*) ((uintptr_t) i3 + input_width);
261 i5 = (const float*) ((uintptr_t) i4 + input_width);
262 i6 = (const float*) ((uintptr_t) i5 + input_width);
263 i7 = (const float*) ((uintptr_t) i6 + input_width);
264 i8 = (const float*) ((uintptr_t) i7 + input_width);
265
266 o0 = o3;
267 o1 = (float*) ((uintptr_t) o0 + output_width);
268 o2 = (float*) ((uintptr_t) o1 + output_width);
269 o3 = (float*) ((uintptr_t) o2 + output_width);
270
271 output_height = doz(output_height, 4);
272 padded_input_height = doz(padded_input_height, 8);
273 } while (output_height != 0);
274 }
275