104 lines
3.8 KiB
C++
104 lines
3.8 KiB
C++
/*
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* ******************************************************************************
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* *
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* *
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* * This program and the accompanying materials are made available under the
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* * terms of the Apache License, Version 2.0 which is available at
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* * https://www.apache.org/licenses/LICENSE-2.0.
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* *
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* * See the NOTICE file distributed with this work for additional
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* * information regarding copyright ownership.
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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, WITHOUT
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* * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* * License for the specific language governing permissions and limitations
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* * under the License.
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* *
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* * SPDX-License-Identifier: Apache-2.0
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* *****************************************************************************
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*/
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//
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// @autkhor raver119@gmail.com
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//
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#include <ops/declarable/helpers/dilation2d.h>
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#include <array/DataTypeUtils.h>
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#include <execution/Threads.h>
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namespace sd {
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namespace ops {
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namespace helpers {
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//////////////////////////////////////////////////////////////////////
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template <typename X, typename Z>
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static void dilation2d_(NDArray *input, NDArray *weights, NDArray *output, const int sH, const int sW, const int pH, const int pW, const int dH, const int dW) {
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// input [bS, iH, iW, iC]
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// weights [kH, kW, iC]
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// output [bS, oH, oW, iC]
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const X* x = input->bufferAsT<X>();
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const X* y = weights->bufferAsT<X>();
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Z* z = output->bufferAsT<Z>();
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const Nd4jLong* xShapeInfo = input->shapeInfo();
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const Nd4jLong* yShapeInfo = weights->shapeInfo();
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const Nd4jLong* zShapeInfo = output->shapeInfo();
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const uint bS = input->sizeAt(0);
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const uint iH = input->sizeAt(1);
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const uint iW = input->sizeAt(2);
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const uint iC = input->sizeAt(3);
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const uint kH = weights->sizeAt(0);
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const uint kW = weights->sizeAt(1);
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const uint oH = output->sizeAt(1);
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const uint oW = output->sizeAt(2);
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auto func = PRAGMA_THREADS_FOR_2D {
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for (auto b = start_x; b < stop_x; b += inc_x) {
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for (auto oh = start_y; oh < stop_y; oh += inc_y) {
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for (uint ow = 0; ow < oW; ++ow) {
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for (uint c = 0; c < iC; ++c) {
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X max = -DataTypeUtils::max<X>();
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for (uint kh = 0; kh < kH; ++kh) {
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const int ih = oh * sH - pH + kh * dH;
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if (ih < 0 || ih >= iH) continue;
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for (uint kw = 0; kw < kW; ++kw) {
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const int iw = ow * sW - pW + kw * dW;
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if (iw < 0 || iw >= iW) continue;
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uint xCoords[4] = { static_cast<uint>(b), static_cast<uint>(ih), static_cast<uint>(iw), c};
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uint yCoords[3] = {kh, kw, c};
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const X val = x[shape::getOffset(xShapeInfo, xCoords)] + y[shape::getOffset(yShapeInfo, yCoords)];
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if (val > max)
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max = val;
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}
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}
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uint zCoords[4] = { static_cast<uint>(b), static_cast<uint>(oh), ow, c};
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z[shape::getOffset(zShapeInfo, zCoords)] = static_cast<Z>(max);
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}
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}
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}
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}
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};
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samediff::Threads::parallel_for(func, 0, bS, 1, 0, oH, 1);
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}
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void dilation2d(sd::LaunchContext* context, NDArray *input, NDArray *weights, NDArray *output, const int sH, const int sW, const int pH, const int pW, const int dH, const int dW) {
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BUILD_SINGLE_SELECTOR_TWICE(input->dataType(), dilation2d_, (input, weights, output, sH, sW, pH, pW, dH, dW), FLOAT_TYPES);
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}
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}
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}
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} |