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#define shape_constant_id_offset 0
25layout (constant_id = shape_constant_id_offset + 0) const int dims = 0;
26layout (constant_id = shape_constant_id_offset + 1) const int w = 0;
27layout (constant_id = shape_constant_id_offset + 2) const int h = 0;
28layout (constant_id = shape_constant_id_offset + 3) const int c = 0;
29layout (constant_id = shape_constant_id_offset + 4) const int cstep = 0;
30
31#if NCNN_image_shader
32layout (binding = 0) uniform unfp sampler3D bottom_blob_3d;
33layout (binding = 1, imfmtc1) writeonly uniform unfp image3D top_blob_3d;
34#else
35layout (binding = 0) buffer bottom_top_blob { sfp bottom_top_blob_data[]; };
36#endif
37
38layout (push_constant) uniform parameter
39{
40    int dims;
41    int w;
42    int h;
43    int c;
44    int cstep;
45} p;
46
47void main()
48{
49    int gx = int(gl_GlobalInvocationID.x);
50    int gy = int(gl_GlobalInvocationID.y);
51    int gz = int(gl_GlobalInvocationID.z);
52
53    if (gx >= psc(w) || gy >= psc(h) || gz >= psc(c))
54        return;
55
56#if NCNN_image_shader
57    afp v = image3d_ld1(bottom_blob_3d, ivec3(gx, gy, gz));
58#else
59    const int gi = gz * psc(cstep) + gy * psc(w) + gx;
60
61    afp v = buffer_ld1(bottom_top_blob_data, gi);
62#endif
63
64    v = abs(v);
65
66#if NCNN_image_shader
67    image3d_st1(top_blob_3d, ivec3(gx, gy, gz), v);
68#else
69    buffer_st1(bottom_top_blob_data, gi, v);
70#endif
71}
72