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//
// Copyright (C) 2023 THL A29 Limited, a Tencent company. All rights reserved.
//
// Licensed under the BSD 3-Clause License (the "License"); you may not use this file except
// in compliance with the License. You may obtain a copy of the License at
//
// https://opensource.org/licenses/BSD-3-Clause
//
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
#version 450
#if NCNN_fp16_storage
#extension GL_EXT_shader_16bit_storage: require
#endif
#if NCNN_fp16_arithmetic
#extension GL_EXT_shader_explicit_arithmetic_types_float16: require
#endif
layout (constant_id = 0) const int op_type = 0;
#define shape_constant_id_offset 1
layout (constant_id = shape_constant_id_offset + 0) const int adims = 0;
layout (constant_id = shape_constant_id_offset + 1) const int aw = 0;
layout (constant_id = shape_constant_id_offset + 2) const int ah = 0;
layout (constant_id = shape_constant_id_offset + 3) const int ad = 0;
layout (constant_id = shape_constant_id_offset + 4) const int ac = 0;
layout (constant_id = shape_constant_id_offset + 5) const int acstep = 0;
layout (constant_id = shape_constant_id_offset + 6) const int bdims = 0;
layout (constant_id = shape_constant_id_offset + 7) const int bw = 0;
layout (constant_id = shape_constant_id_offset + 8) const int bh = 0;
layout (constant_id = shape_constant_id_offset + 9) const int bd = 0;
layout (constant_id = shape_constant_id_offset + 10) const int bc = 0;
layout (constant_id = shape_constant_id_offset + 11) const int bcstep = 0;
layout (constant_id = shape_constant_id_offset + 12) const int outdims = 0;
layout (constant_id = shape_constant_id_offset + 13) const int outw = 0;
layout (constant_id = shape_constant_id_offset + 14) const int outh = 0;
layout (constant_id = shape_constant_id_offset + 15) const int outd = 0;
layout (constant_id = shape_constant_id_offset + 16) const int outc = 0;
layout (constant_id = shape_constant_id_offset + 17) const int outcstep = 0;
#if NCNN_image_shader
layout (binding = 0) uniform unfp sampler3D a_blob_3d;
layout (binding = 1) uniform unfp sampler3D b_blob_3d;
layout (binding = 2, imfmtc1) writeonly uniform unfp image3D top_blob_3d;
#else
layout (binding = 0) readonly buffer a_blob { sfp a_blob_data[]; };
layout (binding = 1) readonly buffer b_blob { sfp b_blob_data[]; };
layout (binding = 2) writeonly buffer top_blob { sfp top_blob_data[]; };
#endif
layout (push_constant) uniform parameter
{
int adims;
int aw;
int ah;
int ad;
int ac;
int acstep;
int bdims;
int bw;
int bh;
int bd;
int bc;
int bcstep;
int outdims;
int outw;
int outh;
int outd;
int outc;
int outcstep;
} p;
void main()
{
int gx = int(gl_GlobalInvocationID.x);
int gy = int(gl_GlobalInvocationID.y);
int gz = int(gl_GlobalInvocationID.z);
if (gx >= psc(outw) || gy >= psc(outh) * psc(outd) || gz >= psc(outc))
return;
int yd = gy / psc(outh);
int yh = gy % psc(outh);
int ax = gx;
int ay = gy;
int az = gz;
int bx = gx;
int by = gy;
int bz = gz;
if (psc(adims) == psc(bdims))
{
// explicit broadcast
ax = min(gx, psc(aw) - 1);
ay = min(yd, psc(ad) - 1) * psc(ah) + min(yh, psc(ah) - 1);
az = min(gz, psc(ac) - 1);
bx = min(gx, psc(bw) - 1);
by = min(yd, psc(bd) - 1) * psc(bh) + min(yh, psc(bh) - 1);
bz = min(gz, psc(bc) - 1);
}
else
{
// implicit broadcast
if (psc(adims) == 4)
{
if (psc(bdims) == 3)
{
// type 13
bx = yh;
by = yd;
bz = gz;
}
if (psc(bdims) == 2)
{
// type 12
bx = yd;
by = gz;
bz = 0;
}
if (psc(bdims) == 1)
{
// type 11
bx = gz;
by = 0;
bz = 0;
}
}
else if (psc(adims) == 3)
{
if (psc(bdims) == 2)
{
// type 10
bx = gy;
by = gz;
bz = 0;
}
if (psc(bdims) == 1)
{
// type 9
bx = gz;
by = 0;
bz = 0;
}
}
else // if (psc(adims) == 2)
{
// if (psc(bdims) == 1)
{
// type 8
bx = gy;
by = 0;
bz = 0;
}
}
}
#if NCNN_image_shader
afp v1 = image3d_ld1(a_blob_3d, ivec3(ax, ay, az));
afp v2 = image3d_ld1(b_blob_3d, ivec3(bx, by, bz));
#else
int ai = az * psc(acstep) + ay * psc(aw) + ax;
int bi = bz * psc(bcstep) + by * psc(bw) + bx;
afp v1 = buffer_ld1(a_blob_data, ai);
afp v2 = buffer_ld1(b_blob_data, bi);
#endif
afp res;
if (op_type == 0) res = v1 + v2;
if (op_type == 1) res = v1 - v2;
if (op_type == 2) res = v1 * v2;
if (op_type == 3) res = v1 / v2;
if (op_type == 4) res = max(v1, v2);
if (op_type == 5) res = min(v1, v2);
if (op_type == 6) res = pow(v1, v2);
if (op_type == 7) res = v2 - v1;
if (op_type == 8) res = v2 / v1;
if (op_type == 9) res = pow(v2, v1);
#if NCNN_moltenvk
if (op_type == 10) res = afp(atan(float(v1), float(v2)));
if (op_type == 11) res = afp(atan(float(v2), float(v1)));
#else
if (op_type == 10) res = atan(v1, v2);
if (op_type == 11) res = atan(v2, v1);
#endif
#if NCNN_image_shader
image3d_st1(top_blob_3d, ivec3(gx, gy, gz), res);
#else
int gi = gz * psc(outcstep) + gy * psc(outw) + gx;
buffer_st1(top_blob_data, gi, res);
#endif
}
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