f4334277
 Hu Chunming
提交3rdparty
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// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
//
// Copyright (C) 2017, Intel Corporation, all rights reserved.
// Third party copyrights are property of their respective owners.
#ifndef __OPENCV_DNN_OP_HALIDE_HPP__
#define __OPENCV_DNN_OP_HALIDE_HPP__
#ifdef HAVE_HALIDE
#if defined(__GNUC__) && __GNUC__ >= 5
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wsuggest-override"
#endif
#include <Halide.h>
#if defined(__GNUC__) && __GNUC__ >= 5
#pragma GCC diagnostic pop
#endif
#endif // HAVE_HALIDE
namespace cv
{
namespace dnn
{
#ifdef HAVE_HALIDE
// Returns four-dimensional buffer with float32 type that wrap cv::Mat data.
// No data copy here.
Halide::Buffer<float> wrapToHalideBuffer(const Mat& mat);
Halide::Buffer<float> wrapToHalideBuffer(const Mat& mat,
const std::vector<int>& shape);
// Extract batch size, number of channels, width and height from buffer.
void getCanonicalSize(const Halide::Buffer<>& buffer, int* width, int* height,
int* channels, int* batch);
// Cast pointer and create copy of Halide buffer. No data copy.
Halide::Buffer<> halideBuffer(const Ptr<BackendWrapper>& ptr);
std::vector<Halide::Buffer<> > halideBuffers(const std::vector<Ptr<BackendWrapper> >& ptrs);
class HalideBackendNode : public BackendNode
{
public:
HalideBackendNode(const Halide::Func& func);
HalideBackendNode(const std::vector<Halide::Func>& funcs);
// Initialize from the <base> node but replace last function to <top>.
// It's using in case of layers fusing when we want to keep functions of
// root layer but replace top by fused one (i.e. conv+padding to relu+padding).
HalideBackendNode(const Ptr<HalideBackendNode>& base, const Halide::Func& top);
std::vector<Halide::Func> funcs;
};
class HalideBackendWrapper : public BackendWrapper
{
public:
HalideBackendWrapper(int targetId, const cv::Mat& m);
HalideBackendWrapper(const Ptr<BackendWrapper>& base, const MatShape& shape);
~HalideBackendWrapper() CV_OVERRIDE;
virtual void copyToHost() CV_OVERRIDE;
virtual void setHostDirty() CV_OVERRIDE;
Halide::Buffer<float> buffer;
private:
bool managesDevMemory;
};
#endif // HAVE_HALIDE
// Extract batch size, number of channels, width and height from MatSize.
void getCanonicalSize(const MatSize& size, int* width, int* height,
int* channels, int* batch);
void getCanonicalSize(const MatShape& shape, int* width, int* height,
int* channels, int* batch);
// Realize Halide pipeline into output blobs.
void forwardHalide(std::vector<Ptr<BackendWrapper> > &outputs,
const Ptr<BackendNode>& node);
// Compile Halide pipeline to specific target. Use outputs to set bounds of functions.
void compileHalide(const std::vector<Mat> &outputs, Ptr<BackendNode>& node, int targetId);
bool haveHalide();
} // namespace dnn
} // namespace cv
#endif // __OPENCV_DNN_OP_HALIDE_HPP__
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