92 lines
3.5 KiB
C++
92 lines
3.5 KiB
C++
// ======================================================================== //
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// Copyright 2009-2019 Intel Corporation //
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// //
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// Licensed under the Apache License, Version 2.0 (the "License"); //
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// you may not use this file except in compliance with the License. //
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// You may obtain a copy of the License at //
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// //
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// http://www.apache.org/licenses/LICENSE-2.0 //
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// //
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// Unless required by applicable law or agreed to in writing, software //
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// distributed under the License is distributed on an "AS IS" BASIS, //
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. //
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// See the License for the specific language governing permissions and //
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// limitations under the License. //
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// ======================================================================== //
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#pragma once
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#include "node.h"
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namespace oidn {
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// 2x2 nearest-neighbor upsampling node
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template<int K>
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class UpsampleNode : public Node
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{
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private:
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std::shared_ptr<memory> src;
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std::shared_ptr<memory> dst;
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public:
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UpsampleNode(const std::shared_ptr<memory>& src,
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const std::shared_ptr<memory>& dst)
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: src(src),
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dst(dst)
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{
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const mkldnn_memory_desc_t& srcDesc = src->get_desc().data;
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const mkldnn_memory_desc_t& dstDesc = dst->get_desc().data;
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MAYBE_UNUSED(srcDesc);
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MAYBE_UNUSED(dstDesc);
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assert(memory_desc_matches_tag(srcDesc, mkldnn_format_tag_t(BlockedFormat<K>::nChwKc)));
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assert(memory_desc_matches_tag(dstDesc, mkldnn_format_tag_t(BlockedFormat<K>::nChwKc)));
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assert(srcDesc.ndims == 4);
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assert(dstDesc.ndims == 4);
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assert(srcDesc.data_type == memory::data_type::f32);
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assert(dstDesc.data_type == memory::data_type::f32);
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assert(srcDesc.dims[0] == 1);
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assert(dstDesc.dims[0] == 1);
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// 2x2 upsampling
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assert(dstDesc.dims[2] == srcDesc.dims[2] * 2);
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assert(dstDesc.dims[3] == srcDesc.dims[3] * 2);
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}
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void execute(stream& sm) override
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{
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const mkldnn_memory_desc_t& srcDesc = src->get_desc().data;
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const float* srcPtr = (float*)src->get_data_handle();
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float* dstPtr = (float*)dst->get_data_handle();
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const int C = srcDesc.dims[1];
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const int H = srcDesc.dims[2];
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const int W = srcDesc.dims[3];
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const int CK = C / K;
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parallel_nd(CK, H, [&](int ck, int h)
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{
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const size_t offset = ck*H*W*K + h*W*K;
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const float* srcPtr_line = srcPtr + offset;
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float* dstPtr_line0 = dstPtr + offset * 4;
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float* dstPtr_line1 = dstPtr_line0 + W*2*K; // next line
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for (int w = 0; w < W; ++w)
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{
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#pragma unroll
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for (int k = 0; k < K; k += 4)
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{
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const __m128 m = _mm_load_ps(&srcPtr_line[w*K + k]);
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_mm_stream_ps(&dstPtr_line0[w*2*K + k], m);
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_mm_stream_ps(&dstPtr_line0[w*2*K+K + k], m);
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_mm_stream_ps(&dstPtr_line1[w*2*K + k], m);
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_mm_stream_ps(&dstPtr_line1[w*2*K+K + k], m);
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}
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}
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});
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}
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std::shared_ptr<memory> getDst() const override { return dst; }
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};
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} // namespace oidn
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