1// Tencent is pleased to support the open source community by making ncnn available.
2//
3// Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
4//
5// Licensed under the BSD 3-Clause License (the "License"); you may not use this file except
6// in compliance with the License. You may obtain a copy of the License at
7//
8// https://opensource.org/licenses/BSD-3-Clause
9//
10// Unless required by applicable law or agreed to in writing, software distributed
11// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
12// CONDITIONS OF ANY KIND, either express or implied. See the License for the
13// specific language governing permissions and limitations under the License.
14
15#version 450
16
17#if NCNN_fp16_storage
18#extension GL_EXT_shader_16bit_storage: require
19#endif
20#if NCNN_fp16_arithmetic
21#extension GL_EXT_shader_explicit_arithmetic_types_float16: require
22#endif
23
24layout (constant_id = 0) const int across_spatial = 0;
25layout (constant_id = 1) const int across_channel = 0;
26layout (constant_id = 2) const int channel_shared = 0;
27layout (constant_id = 3) const int scale_term = 0;
28layout (constant_id = 4) const float channel_shared_scale = 1.f;
29
30#define shape_constant_id_offset 5
31layout (constant_id = shape_constant_id_offset + 0) const int dims = 0;
32layout (constant_id = shape_constant_id_offset + 1) const int w = 0;
33layout (constant_id = shape_constant_id_offset + 2) const int h = 0;
34layout (constant_id = shape_constant_id_offset + 3) const int c = 0;
35layout (constant_id = shape_constant_id_offset + 4) const int cstep = 0;
36
37#if NCNN_image_shader
38layout (binding = 0) uniform unfp sampler3D bottom_blob;
39layout (binding = 1, imfmtc1) writeonly uniform unfp image3D top_blob;
40layout (binding = 2) uniform unfp sampler3D coeffs_blob;
41layout (binding = 3) uniform unfp sampler3D scale_blob;
42#else
43layout (binding = 0) buffer bottom_top_blob { sfp bottom_top_blob_data[]; };
44layout (binding = 1) readonly buffer coeffs_blob { sfp coeffs_blob_data[]; };
45layout (binding = 2) readonly buffer scale_blob { sfp scale_blob_data[]; };
46#endif
47
48layout (push_constant) uniform parameter
49{
50    int dims;
51    int w;
52    int h;
53    int c;
54    int cstep;
55} p;
56
57void main()
58{
59    int gx = int(gl_GlobalInvocationID.x);
60    int gy = int(gl_GlobalInvocationID.y);
61    int gz = int(gl_GlobalInvocationID.z);
62
63    if (gx >= psc(w) || gy >= psc(h) || gz >= psc(c))
64        return;
65
66#if NCNN_image_shader
67    afp v = image3d_ld1(bottom_blob, ivec3(gx, gy, gz));
68#else
69    const int gi = gz * psc(cstep) + gy * psc(w) + gx;
70
71    afp v = buffer_ld1(bottom_top_blob_data, gi);
72#endif
73
74    afp a;
75
76    if (across_spatial == 1 && across_channel == 1)
77    {
78#if NCNN_image_shader
79        a = image3d_ld1(coeffs_blob, ivec3(0, 0, 0));
80#else
81        a = buffer_ld1(coeffs_blob_data, 0);
82#endif
83    }
84
85    if (across_spatial == 1 && across_channel == 0)
86    {
87#if NCNN_image_shader
88        a = image3d_ld1(coeffs_blob, ivec3(gz, 0, 0));
89#else
90        a = buffer_ld1(coeffs_blob_data, gz);
91#endif
92    }
93
94    if (across_spatial == 0 && across_channel == 1)
95    {
96#if NCNN_image_shader
97        a = image3d_ld1(coeffs_blob, ivec3(gy * psc(w) + gx, 0, 0));
98#else
99        a = buffer_ld1(coeffs_blob_data, gy * psc(w) + gx);
100#endif
101    }
102
103    v = v * a;
104
105    if (scale_term == 1)
106    {
107        if (channel_shared == 1)
108        {
109            v = v * afp(channel_shared_scale);
110        }
111        else
112        {
113#if NCNN_image_shader
114            v = v * image3d_ld1(scale_blob, ivec3(gz, 0, 0));
115#else
116            v = v * buffer_ld1(scale_blob_data, gz);
117#endif
118        }
119    }
120
121#if NCNN_image_shader
122    image3d_st1(top_blob, ivec3(gx, gy, gz), v);
123#else
124    buffer_st1(bottom_top_blob_data, gi, v);
125#endif
126}
127