ncnn

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// Tencent is pleased to support the open source community by making ncnn available.
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//
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// Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
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//
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// Licensed under the BSD 3-Clause License (the "License"); you may not use this file except
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// in compliance with the License. You may obtain a copy of the License at
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//
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// https://opensource.org/licenses/BSD-3-Clause
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//
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// Unless required by applicable law or agreed to in writing, software distributed
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// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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// CONDITIONS OF ANY KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations under the License.
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#version 450
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#if NCNN_fp16_storage
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#extension GL_EXT_shader_16bit_storage: require
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#endif
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#if NCNN_fp16_arithmetic
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#extension GL_EXT_shader_explicit_arithmetic_types_float16: require
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#endif
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layout (constant_id = 0) const int op_type = 0;
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#define shape_constant_id_offset 1
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layout (constant_id = shape_constant_id_offset + 0) const int dims = 0;
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layout (constant_id = shape_constant_id_offset + 1) const int w = 0;
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layout (constant_id = shape_constant_id_offset + 2) const int h = 0;
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layout (constant_id = shape_constant_id_offset + 3) const int c = 0;
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layout (constant_id = shape_constant_id_offset + 4) const int cstep = 0;
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#if NCNN_image_shader
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layout (binding = 0) uniform unfp sampler3D bottom_blob_3d;
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layout (binding = 1, imfmtc4) writeonly uniform unfp image3D top_blob_3d;
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#else
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layout (binding = 0) buffer bottom_top_blob { sfpvec4 bottom_top_blob_data[]; };
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#endif
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layout (push_constant) uniform parameter
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{
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    int dims;
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    int w;
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    int h;
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    int c;
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    int cstep;
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} p;
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void main()
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{
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    int gx = int(gl_GlobalInvocationID.x);
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    int gy = int(gl_GlobalInvocationID.y);
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    int gz = int(gl_GlobalInvocationID.z);
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    if (gx >= psc(w) || gy >= psc(h) || gz >= psc(c))
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        return;
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#if NCNN_image_shader
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    afpvec4 v = image3d_ld4(bottom_blob_3d, ivec3(gx, gy, gz));
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#else
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    const int gi = gz * psc(cstep) + gy * psc(w) + gx;
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    afpvec4 v = buffer_ld4(bottom_top_blob_data, gi);
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#endif
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    afpvec4 res;
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    if (op_type == 0) res = abs(v);
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    if (op_type == 1) res = -v;
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    if (op_type == 2) res = floor(v);
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    if (op_type == 3) res = ceil(v);
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    if (op_type == 4) res = v * v;
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    if (op_type == 5) res = sqrt(v);
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    if (op_type == 6) res = inversesqrt(v);
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    if (op_type == 7) res = exp(v);
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    if (op_type == 8) res = log(v);
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    if (op_type == 9) res = sin(v);
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    if (op_type == 10) res = cos(v);
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    if (op_type == 11) res = tan(v);
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    if (op_type == 12) res = asin(v);
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    if (op_type == 13) res = acos(v);
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    if (op_type == 14) res = atan(v);
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    if (op_type == 15) res = afp(1.f) / v;
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#if NCNN_moltenvk
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    if (op_type == 16) res = afpvec4(tanh(vec4(v)));
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#else
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    if (op_type == 16) res = tanh(v);
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#endif
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    if (op_type == 17) res = log(v) * afp(0.434294481903);
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    if (op_type == 18) res = round(v);
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    if (op_type == 19) res = trunc(v);
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#if NCNN_image_shader
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    image3d_st4(top_blob_3d, ivec3(gx, gy, gz), res);
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#else
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    buffer_st4(bottom_top_blob_data, gi, res);
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#endif
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}
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