mirror of
https://github.com/blakeblackshear/frigate.git
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67 lines
2.6 KiB
C++
67 lines
2.6 KiB
C++
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2015-2022 Advanced Micro Devices, Inc. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "migraphx/gpu/device/visit.hpp"
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#include <migraphx/shape.hpp>
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#include <migraphx/argument.hpp>
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#include <migraphx/gpu/device/reverse.hpp>
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#include <migraphx/gpu/device/tensor.hpp>
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#include <migraphx/gpu/device/launch.hpp>
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#include <migraphx/gpu/device/types.hpp>
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namespace migraphx {
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inline namespace MIGRAPHX_INLINE_NS {
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namespace gpu {
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namespace device {
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argument
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reverse(hipStream_t stream, argument result, argument arg1, const std::vector<int64_t>& axes)
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{
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auto s = arg1.get_shape();
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// auto lens = s.lens();
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std::vector<std::size_t> axis_len(axes.begin(), axes.end());
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shape sa{shape::float_type, axis_len};
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std::size_t nelements = s.elements();
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visit_all(result, arg1)([&](auto output1, auto input1) {
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hip_visit_views(output1, input1, s)([&](auto output, auto input, auto hs) {
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hip_visit_views(sa)([&](auto daxes) {
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auto lens = hs.lens;
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gs_launch(stream, nelements)([=](auto i) __device__ {
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auto idx = hs.multi(i);
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auto in_idx = idx;
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for(auto axis : daxes.lens)
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in_idx[axis] = lens[axis] - 1 - idx[axis];
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output[idx] = input[in_idx];
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});
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});
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});
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});
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return result;
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}
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} // namespace device
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} // namespace gpu
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} // namespace MIGRAPHX_INLINE_NS
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} // namespace migraphx
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