ncnn

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

24
layout (constant_id = 0) const int group = 0;
25
layout (constant_id = 1) const int bugihfa = 0;
26

27
#define shape_constant_id_offset 2
28
layout (constant_id = shape_constant_id_offset + 0) const int dims = 0;
29
layout (constant_id = shape_constant_id_offset + 1) const int w = 0;
30
layout (constant_id = shape_constant_id_offset + 2) const int h = 0;
31
layout (constant_id = shape_constant_id_offset + 3) const int c = 0;
32
layout (constant_id = shape_constant_id_offset + 4) const int cstep = 0;
33

34
layout (constant_id = shape_constant_id_offset + 5) const int outdims = 0;
35
layout (constant_id = shape_constant_id_offset + 6) const int outw = 0;
36
layout (constant_id = shape_constant_id_offset + 7) const int outh = 0;
37
layout (constant_id = shape_constant_id_offset + 8) const int outc = 0;
38
layout (constant_id = shape_constant_id_offset + 9) const int outcstep = 0;
39

40
#if NCNN_image_shader
41
layout (binding = 0) uniform unfp sampler3D bottom_blob;
42
layout (binding = 1, imfmtc4) writeonly uniform unfp image3D top_blob;
43
#else
44
layout (binding = 0) readonly buffer bottom_blob { sfpvec4 bottom_blob_data[]; };
45
layout (binding = 1) writeonly buffer top_blob { sfpvec4 top_blob_data[]; };
46
#endif
47

48
layout (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

62
    int group;
63
} p;
64

65
void main()
66
{
67
    int gx = int(gl_GlobalInvocationID.x);
68
    int gy = int(gl_GlobalInvocationID.y);
69
    int gz = int(gl_GlobalInvocationID.z);
70

71
    if (gx >= psc(outw) || gy >= psc(outh) || gz >= psc(outc))
72
        return;
73

74
    const int channels_g = psc(c) * 4 / psc(group);
75

76
    ivec4 gz4 = ivec4(gz * 4) + ivec4(0, 1, 2, 3);
77

78
    ivec4 z4 = (gz4 % psc(group)) * channels_g + (gz4 / psc(group));
79

80
#if NCNN_image_shader
81
    ivec4 sz4 = z4 / 4;
82

83
    afpvec4 vr = image3d_ld4(bottom_blob, ivec3(gx, gy, sz4.r));
84
    afpvec4 vg = image3d_ld4(bottom_blob, ivec3(gx, gy, sz4.g));
85
    afpvec4 vb = image3d_ld4(bottom_blob, ivec3(gx, gy, sz4.b));
86
    afpvec4 va = image3d_ld4(bottom_blob, ivec3(gx, gy, sz4.a));
87
#else
88
    ivec4 v_offset = (z4 / 4) * psc(cstep) + gy * psc(w) + gx;
89

90
    // v = v4[lane]
91

92
    afpvec4 vr = buffer_ld4(bottom_blob_data, v_offset.r);
93
    afpvec4 vg = buffer_ld4(bottom_blob_data, v_offset.g);
94
    afpvec4 vb = buffer_ld4(bottom_blob_data, v_offset.b);
95
    afpvec4 va = buffer_ld4(bottom_blob_data, v_offset.a);
96
#endif
97

98
    ivec4 lane4 = z4 % 4;
99

100
    afpvec4 v;
101
#if NCNN_fp16_arithmetic
102
    if (bugihfa == 1)
103
    {
104
        if (lane4.r == 0) v.r = vr.r;
105
        if (lane4.r == 1) v.r = vr.g;
106
        if (lane4.r == 2) v.r = vr.b;
107
        if (lane4.r == 3) v.r = vr.a;
108
        if (lane4.g == 0) v.g = vg.r;
109
        if (lane4.g == 1) v.g = vg.g;
110
        if (lane4.g == 2) v.g = vg.b;
111
        if (lane4.g == 3) v.g = vg.a;
112
        if (lane4.b == 0) v.b = vb.r;
113
        if (lane4.b == 1) v.b = vb.g;
114
        if (lane4.b == 2) v.b = vb.b;
115
        if (lane4.b == 3) v.b = vb.a;
116
        if (lane4.a == 0) v.a = va.r;
117
        if (lane4.a == 1) v.a = va.g;
118
        if (lane4.a == 2) v.a = va.b;
119
        if (lane4.a == 3) v.a = va.a;
120
    }
121
    else
122
#endif
123
    {
124
        v = afpvec4(vr[lane4.r], vg[lane4.g], vb[lane4.b], va[lane4.a]);
125
    }
126

127
#if NCNN_image_shader
128
    image3d_st4(top_blob, ivec3(gx, gy, gz), v);
129
#else
130
    int gi = gz * psc(outcstep) + gy * psc(outw) + gx;
131

132
    buffer_st4(top_blob_data, gi, v);
133
#endif
134
}
135