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
19struct sfpvec8 { f16vec4 abcd; f16vec4 efgh; };
20#endif
21#if NCNN_fp16_arithmetic
22#extension GL_EXT_shader_explicit_arithmetic_types_float16: require
23#endif
24
25layout (constant_id = 0) const int storage_type_from = 0;
26layout (constant_id = 1) const int storage_type_to = 0;
27
28#define shape_constant_id_offset 2
29layout (constant_id = shape_constant_id_offset + 0) const int dims = 0;
30layout (constant_id = shape_constant_id_offset + 1) const int w = 0;
31layout (constant_id = shape_constant_id_offset + 2) const int h = 0;
32layout (constant_id = shape_constant_id_offset + 3) const int c = 0;
33layout (constant_id = shape_constant_id_offset + 4) const int cstep = 0;
34
35layout (constant_id = shape_constant_id_offset + 5) const int outdims = 0;
36layout (constant_id = shape_constant_id_offset + 6) const int outw = 0;
37layout (constant_id = shape_constant_id_offset + 7) const int outh = 0;
38layout (constant_id = shape_constant_id_offset + 8) const int outc = 0;
39layout (constant_id = shape_constant_id_offset + 9) const int outcstep = 0;
40
41layout (binding = 0) readonly buffer bottom_blob { sfpvec8 bottom_blob_data[]; };
42layout (binding = 1) writeonly buffer top_blob { sfpvec8 top_blob_data[]; };
43#if NCNN_image_shader
44layout (binding = 2) uniform unfp sampler3D bottom_blob_3d;
45layout (binding = 3, imfmtc4) writeonly uniform unfp image3D top_blob_3d;
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
56    int outdims;
57    int outw;
58    int outh;
59    int outc;
60    int outcstep;
61} p;
62
63void main()
64{
65    int gx = int(gl_GlobalInvocationID.x);
66    int gy = int(gl_GlobalInvocationID.y);
67    int gz = int(gl_GlobalInvocationID.z);
68
69    if (gx >= psc(outw) || gy >= psc(outh) || gz >= psc(outc))
70        return;
71
72    afpvec8 v;
73
74    if (psc(dims) == 1)
75    {
76        if (storage_type_from == 0)
77        {
78            int gi = gx;
79
80            v = buffer_ld8(bottom_blob_data, gi);
81        }
82#if NCNN_image_shader
83        if (storage_type_from == 1)
84        {
85            v = image3d_ld8(bottom_blob_3d, ivec3(gx, 0, 0));
86        }
87#endif
88
89        if (storage_type_to == 0)
90        {
91            int gi = gx;
92
93            buffer_st8(top_blob_data, gi, v);
94        }
95#if NCNN_image_shader
96        if (storage_type_to == 1)
97        {
98            image3d_st8(top_blob_3d, ivec3(gx, 0, 0), v);
99        }
100#endif
101    }
102    else if (psc(dims) == 2)
103    {
104        if (storage_type_from == 0)
105        {
106            int gi = gy * psc(w) + gx;
107
108            v = buffer_ld8(bottom_blob_data, gi);
109        }
110#if NCNN_image_shader
111        if (storage_type_from == 1)
112        {
113            v = image3d_ld8(bottom_blob_3d, ivec3(gx, gy, 0));
114        }
115#endif
116
117        if (storage_type_to == 0)
118        {
119            int gi = gy * psc(outw) + gx;
120
121            buffer_st8(top_blob_data, gi, v);
122        }
123#if NCNN_image_shader
124        if (storage_type_to == 1)
125        {
126            image3d_st8(top_blob_3d, ivec3(gx, gy, 0), v);
127        }
128#endif
129    }
130    else // if (psc(dims) == 3)
131    {
132        if (storage_type_from == 0)
133        {
134            int gi = gz * psc(cstep) + gy * psc(w) + gx;
135
136            v = buffer_ld8(bottom_blob_data, gi);
137        }
138#if NCNN_image_shader
139        if (storage_type_from == 1)
140        {
141            v = image3d_ld8(bottom_blob_3d, ivec3(gx, gy, gz));
142        }
143#endif
144
145        if (storage_type_to == 0)
146        {
147            int gi = gz * psc(outcstep) + gy * psc(outw) + gx;
148
149            buffer_st8(top_blob_data, gi, v);
150        }
151#if NCNN_image_shader
152        if (storage_type_to == 1)
153        {
154            image3d_st8(top_blob_3d, ivec3(gx, gy, gz), v);
155        }
156#endif
157    }
158}
159