1
// Tencent is pleased to support the open source community by making ncnn available.
3
// Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
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
8
// https://opensource.org/licenses/BSD-3-Clause
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.
18
#extension GL_EXT_shader_16bit_storage: require
20
#if NCNN_fp16_arithmetic
21
#extension GL_EXT_shader_explicit_arithmetic_types_float16: require
24
layout (constant_id = 0) const int num_slope = 0;
25
layout (constant_id = 1) const float slope_value = 1.f;
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;
35
layout (binding = 0) uniform unfp sampler3D bottom_blob_3d;
36
layout (binding = 1, imfmtc1) writeonly uniform unfp image3D top_blob_3d;
37
layout (binding = 2) uniform unfp sampler3D slope_blob;
39
layout (binding = 0) buffer bottom_top_blob { sfp bottom_top_blob_data[]; };
40
layout (binding = 1) readonly buffer slope_blob { sfp slope_blob_data[]; };
43
layout (push_constant) uniform parameter
54
int gx = int(gl_GlobalInvocationID.x);
55
int gy = int(gl_GlobalInvocationID.y);
56
int gz = int(gl_GlobalInvocationID.z);
58
if (gx >= psc(w) || gy >= psc(h) || gz >= psc(c))
62
afp v = image3d_ld1(bottom_blob_3d, ivec3(gx, gy, gz));
64
const int gi = gz * psc(cstep) + gy * psc(w) + gx;
66
afp v = buffer_ld1(bottom_top_blob_data, gi);
73
slope = afp(slope_value);
77
const ivec3 gxyz = ivec3(gx, gy, gz);
78
const int abi = gxyz[psc(dims) - 1];
81
slope = image3d_ld1(slope_blob, ivec3(abi, 0, 0));
83
slope = buffer_ld1(slope_blob_data, abi);
87
v = v < afp(0.f) ? v * slope : v;
90
image3d_st1(top_blob_3d, ivec3(gx, gy, gz), v);
92
buffer_st1(bottom_top_blob_data, gi, v);