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 bias_term = 0;
25

26
#define shape_constant_id_offset 1
27
layout (constant_id = shape_constant_id_offset + 0) const int dims = 0;
28
layout (constant_id = shape_constant_id_offset + 1) const int w = 0;
29
layout (constant_id = shape_constant_id_offset + 2) const int h = 0;
30
layout (constant_id = shape_constant_id_offset + 3) const int c = 0;
31
layout (constant_id = shape_constant_id_offset + 4) const int cstep = 0;
32

33
#if NCNN_image_shader
34
layout (binding = 0) uniform unfp sampler3D bottom_blob_3d;
35
layout (binding = 1, imfmtc4) writeonly uniform unfp image3D top_blob_3d;
36
layout (binding = 2) uniform unfp sampler3D scale_blob;
37
layout (binding = 3) uniform unfp sampler3D bias_blob;
38
#else
39
layout (binding = 0) buffer bottom_top_blob { sfpvec4 bottom_top_blob_data[]; };
40
layout (binding = 1) readonly buffer scale_blob { sfpvec4 scale_blob_data[]; };
41
layout (binding = 2) readonly buffer bias_blob { sfpvec4 bias_blob_data[]; };
42
#endif
43

44
layout (push_constant) uniform parameter
45
{
46
    int dims;
47
    int w;
48
    int h;
49
    int c;
50
    int cstep;
51
} p;
52

53
void main()
54
{
55
    int gx = int(gl_GlobalInvocationID.x);
56
    int gy = int(gl_GlobalInvocationID.y);
57
    int gz = int(gl_GlobalInvocationID.z);
58

59
    if (gx >= psc(w) || gy >= psc(h) || gz >= psc(c))
60
        return;
61

62
#if NCNN_image_shader
63
    afpvec4 v = image3d_ld4(bottom_blob_3d, ivec3(gx, gy, gz));
64
#else
65
    const int gi = gz * psc(cstep) + gy * psc(w) + gx;
66

67
    afpvec4 v = buffer_ld4(bottom_top_blob_data, gi);
68
#endif
69

70
    const ivec3 gxyz = ivec3(gx, gy, gz);
71
    const int abi = gxyz[psc(dims) - 1];
72

73
#if NCNN_image_shader
74
    if (bias_term == 1)
75
        v = image3d_ld4(scale_blob, ivec3(abi, 0, 0)) * v + image3d_ld4(bias_blob, ivec3(abi, 0, 0));
76
    else
77
        v = image3d_ld4(scale_blob, ivec3(abi, 0, 0)) * v;
78
#else
79
    if (bias_term == 1)
80
        v = buffer_ld4(scale_blob_data, abi) * v + buffer_ld4(bias_blob_data, abi);
81
    else
82
        v = buffer_ld4(scale_blob_data, abi) * v;
83
#endif
84

85
#if NCNN_image_shader
86
    image3d_st4(top_blob_3d, ivec3(gx, gy, gz), v);
87
#else
88
    buffer_st4(bottom_top_blob_data, gi, v);
89
#endif
90
}
91