ncnn

1
// Tencent is pleased to support the open source community by making ncnn available.
2
//
3
// Copyright (C) 2021 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

24
layout (constant_id = 0) const int type = 1;
25
layout (constant_id = 1) const float value = 0;
26
layout (constant_id = 2) const int per_channel_pad = 0;
27

28
#define shape_constant_id_offset 3
29
layout (constant_id = shape_constant_id_offset + 0) const int dims = 0;
30
layout (constant_id = shape_constant_id_offset + 1) const int w = 0;
31
layout (constant_id = shape_constant_id_offset + 2) const int h = 0;
32
layout (constant_id = shape_constant_id_offset + 3) const int d = 0;
33
layout (constant_id = shape_constant_id_offset + 4) const int c = 0;
34
layout (constant_id = shape_constant_id_offset + 5) const int cstep = 0;
35

36
layout (constant_id = shape_constant_id_offset + 6) const int outdims = 0;
37
layout (constant_id = shape_constant_id_offset + 7) const int outw = 0;
38
layout (constant_id = shape_constant_id_offset + 8) const int outh = 0;
39
layout (constant_id = shape_constant_id_offset + 9) const int outd = 0;
40
layout (constant_id = shape_constant_id_offset + 10) const int outc = 0;
41
layout (constant_id = shape_constant_id_offset + 11) const int outcstep = 0;
42

43
#if NCNN_image_shader
44
layout (binding = 0) uniform unfp sampler3D bottom_blob;
45
layout (binding = 1, imfmtc4) writeonly uniform unfp image3D top_blob;
46
layout (binding = 2) uniform unfp sampler3D per_channel_pad_blob;
47
#else
48
layout (binding = 0) readonly buffer bottom_blob { sfpvec4 bottom_blob_data[]; };
49
layout (binding = 1) writeonly buffer top_blob { sfpvec4 top_blob_data[]; };
50
layout (binding = 2) readonly buffer per_channel_pad_blob { sfpvec4 per_channel_pad_blob_data[]; };
51
#endif
52

53
layout (push_constant) uniform parameter
54
{
55
    int dims;
56
    int w;
57
    int h;
58
    int d;
59
    int c;
60
    int cstep;
61

62
    int outdims;
63
    int outw;
64
    int outh;
65
    int outd;
66
    int outc;
67
    int outcstep;
68

69
    int left;
70
    int top;
71
    int front;
72
} p;
73

74
void main()
75
{
76
    int gx = int(gl_GlobalInvocationID.x);
77
    int gy = int(gl_GlobalInvocationID.y);
78
    int gz = int(gl_GlobalInvocationID.z);
79

80
    if (gx >= psc(outw) || gy >= psc(outh) * psc(outd) || gz >= psc(outc))
81
        return;
82

83
    // if (psc(dims) == 4)
84
    {
85
        const int gi = gz * psc(outcstep) + gy * psc(outw) + gx;
86

87
        int x = gx - p.left;
88
        int yh = gy % psc(outh) - p.top;
89
        int yd = gy / psc(outh) - p.front;
90
        int y = yd * psc(h) + yh;
91
        int z = gz;
92

93
        if (type == 0)
94
        {
95
            if (x >= 0 && x < psc(w) && yh >= 0 && yh < psc(h) && yd >= 0 && yd < psc(d) && z >= 0 && z < psc(c))
96
            {
97
#if NCNN_image_shader
98
                image3d_cp4(top_blob, ivec3(gx, gy, gz), bottom_blob, ivec3(x, y, z));
99
#else
100
                int v_offset = z * psc(cstep) + y * psc(w) + x;
101
                buffer_cp4(top_blob_data, gi, bottom_blob_data, v_offset);
102
#endif
103
            }
104
            else if (per_channel_pad == 1)
105
            {
106
#if NCNN_image_shader
107
                image3d_cp4(top_blob, ivec3(gx, gy, gz), per_channel_pad_blob, ivec3(gz, 0, 0));
108
#else
109
                buffer_cp4(top_blob_data, gi, per_channel_pad_blob_data, gz);
110
#endif
111
            }
112
            else
113
            {
114
                afpvec4 v = afpvec4(value);
115
#if NCNN_image_shader
116
                image3d_st4(top_blob, ivec3(gx, gy, gz), v);
117
#else
118
                buffer_st4(top_blob_data, gi, v);
119
#endif
120
            }
121
        }
122
        // TODO implement type 1 and 2
123
    }
124
}
125