mirror of https://github.com/alibaba/MNN.git
88 lines
3.3 KiB
C++
88 lines
3.3 KiB
C++
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//
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// ShapeInterp.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 "Macro.h"
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#include "SizeComputer.hpp"
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namespace MNN {
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// –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
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// Size Computer
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// –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
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class InterpComputer : public SizeComputer {
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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() || 2 == inputs.size());
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MNN_ASSERT(1 == outputs.size());
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auto& input = inputs[0]->buffer(); // input tensor(data)
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auto& output = outputs[0]->buffer();
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int w = 0;
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int h = 0;
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const int inputSize = (int)inputs.size();
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// copy dims
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memcpy(output.dim, input.dim, sizeof(halide_dimension_t) * input.dimensions);
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if (1 == inputSize) {
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auto interp = op->main_as_Interp();
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// get output dims
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w = interp->outputWidth();
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h = interp->outputHeight();
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if (w == 0 || h == 0) {
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w = input.dim[3].extent * interp->widthScale();
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h = input.dim[2].extent * interp->heightScale();
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}
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output.dim[3].extent = w;
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output.dim[2].extent = h;
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} else {
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// copy data from device to host if needed
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std::shared_ptr<Tensor> tmpShape;
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auto shape = inputs[1]; // input shape(shape)
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if (!shape->host<int32_t>() && shape->deviceId()) {
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tmpShape.reset(Tensor::createHostTensorFromDevice(shape, true));
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shape = tmpShape.get();
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}
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MNN_ASSERT(2 == shape->buffer().dim[0].extent);
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const int32_t* shapeData = shape->host<int32_t>();
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w = shapeData[1];
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h = shapeData[0];
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output.dim[3].extent = w;
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output.dim[2].extent = h;
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}
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if (0 == w || 0 == h) {
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return false;
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}
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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 elementInM = (float)outputs[0]->elementSize() / 1024.0f / 1024.0f;
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auto interp = op->main_as_Interp();
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auto unit = 0;
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switch (interp->resizeType()) {
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case 1:
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unit = 1;
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break;
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case 2:
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unit = 4;
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break;
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case 3:
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unit = 16;
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break;
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default:
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break;
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}
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return unit * elementInM;
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}
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};
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REGISTER_SHAPE(InterpComputer, OpType_Interp);
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} // namespace MNN
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