mirror of https://github.com/alibaba/MNN.git
88 lines
3.0 KiB
C++
88 lines
3.0 KiB
C++
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//
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// GeometryConcat.cpp
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// MNN
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//
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// Created by MNN on 2020/04/07.
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// Copyright © 2018, Alibaba Group Holding Limited
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//
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#include "geometry/GeometryComputer.hpp"
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namespace MNN {
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class GeometryConcat : public GeometryComputer {
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public:
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virtual bool onCompute(const Op* op, const std::vector<Tensor*>& inputs, const std::vector<Tensor*>& outputs,
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Context& context, CommandBuffer& res) const override {
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MNN_ASSERT(1 == outputs.size());
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MNN_ASSERT(inputs.size() >= 1);
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int basicAxis = 0;
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bool inputFix = false;
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if (op->type() == OpType_Concat) {
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basicAxis = op->main_as_Axis()->axis();
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} else if (op->type() == OpType_QuantizedConcat) {
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basicAxis = op->main_as_QuantizedConcat()->axis();
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} else if (op->type() == OpType_Pack) {
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basicAxis = op->main_as_PackParam()->axis();
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inputFix = true;
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}
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auto output = outputs[0];
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int axis = basicAxis;
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if (axis < 0) {
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axis = output->dimensions() + axis;
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}
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auto outputDes = TensorUtils::getDescribe(output);
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outputDes->memoryType = Tensor::InsideDescribe::MEMORY_VIRTUAL;
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int outside = 1;
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int inside = 1;
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for (int i = 0; i < axis; ++i) {
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outside *= output->length(i);
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}
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for (int i = axis + 1; i < output->dimensions(); ++i) {
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inside *= output->length(i);
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}
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int offset = 0;
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outputDes->regions.clear();
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if (output->elementSize() <= 0) {
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return true;
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}
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for (int i = 0; i < inputs.size(); ++i) {
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auto t = inputs[i];
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if (t->elementSize() == 0) {
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continue;
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}
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Tensor::InsideDescribe::Region dstSlice;
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int basicStride = 1;
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int basicOffset = 0;
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dstSlice.origin = t;
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dstSlice.src.offset = basicOffset;
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dstSlice.dst.offset = offset * inside;
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dstSlice.size[0] = outside;
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if (inputFix) {
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dstSlice.size[1] = 1;
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} else {
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dstSlice.size[1] = t->length(axis);
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}
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dstSlice.dst.stride[0] = inside * output->length(axis);
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dstSlice.dst.stride[1] = inside;
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dstSlice.dst.stride[2] = 1;
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dstSlice.size[2] = inside;
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offset += dstSlice.size[1];
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dstSlice.src.stride[0] = basicStride * dstSlice.size[1] * dstSlice.size[2];
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dstSlice.src.stride[1] = basicStride * dstSlice.size[2];
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dstSlice.src.stride[2] = basicStride;
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outputDes->regions.emplace_back(std::move(dstSlice));
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}
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return true;
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}
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};
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static void _create() {
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std::shared_ptr<GeometryComputer> comp(new GeometryConcat);
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GeometryComputer::registerGeometryComputer(comp, {OpType_QuantizedConcat, OpType_Concat, OpType_Pack});
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}
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REGISTER_GEOMETRY(GeometryConcat, _create);
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} // namespace MNN
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