mirror of https://github.com/alibaba/MNN.git
79 lines
3.0 KiB
C++
79 lines
3.0 KiB
C++
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//
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// ShapeConvolution.cpp
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// MNN
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//
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// Created by MNN on 2019/01/10.
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// Copyright © 2018, Alibaba Group Holding Limited
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//
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#include <math.h>
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#include "SizeComputer.hpp"
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namespace MNN {
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class ConvolutionSizeComputer : public SizeComputer {
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public:
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virtual bool onComputeSize(const MNN::Op* op, const std::vector<Tensor*>& inputs,
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const std::vector<Tensor*>& outputs) const override {
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MNN_ASSERT(1 == inputs.size());
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MNN_ASSERT(1 == outputs.size());
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auto layer = op->main_as_Convolution2D()->common();
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int kernel_width = layer->dilateX() * (layer->kernelX() - 1) + 1;
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int kernel_height = layer->dilateY() * (layer->kernelY() - 1) + 1;
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int output_width = 1;
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int output_height = 1;
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auto input = inputs[0];
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if (input->buffer().dimensions < 4) {
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return false;
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}
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if (input->width() <= 0 || input->height() <= 0) {
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return false;
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}
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if (layer->padMode() == PadMode_SAME) {
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// Tensorflow padding mode SAME
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output_width = ceil((float)input->width() / (float)layer->strideX());
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output_height = ceil((float)input->height() / (float)layer->strideY());
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} else if (layer->padMode() == PadMode_VALID) {
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// Tensorflow padding mode VALID
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output_width = ceil((float)(input->width() - kernel_width + 1) / (float)layer->strideX());
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output_height = ceil((float)(input->height() - kernel_height + 1) / (float)layer->strideY());
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} else {
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// caffe
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int input_width = input->width() + layer->padX() * 2;
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int input_height = input->height() + layer->padY() * 2;
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output_width = (input_width - kernel_width) / layer->strideX() + 1;
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output_height = (input_height - kernel_height) / layer->strideY() + 1;
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}
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auto& outputBuffer = outputs[0]->buffer();
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outputBuffer.dimensions = input->buffer().dimensions;
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outputBuffer.dim[0].extent = input->buffer().dim[0].extent;
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outputBuffer.dim[1].extent = layer->outputCount();
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outputBuffer.dim[2].extent = output_height;
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outputBuffer.dim[3].extent = output_width;
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return true;
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}
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virtual float onComputeFlops(const MNN::Op* op, const std::vector<Tensor*>& inputs,
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const std::vector<Tensor*>& outputs) const override {
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auto layer = op->main_as_Convolution2D()->common();
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auto kw = layer->kernelX();
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auto kh = layer->kernelY();
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auto group = layer->group();
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auto ic = inputs[0]->channel();
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auto oc = outputs[0]->channel();
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auto oSize = outputs[0]->width() * outputs[0]->height() * outputs[0]->batch();
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auto flops = (float)oSize * kw * kh * (ic * oc / group) / FLOPS_M;
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return flops;
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}
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};
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REGISTER_SHAPE(ConvolutionSizeComputer, OpType_Convolution);
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REGISTER_SHAPE(ConvolutionSizeComputer, OpType_ConvolutionDepthwise);
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} // namespace MNN
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