opencv_mv/QMainPro/QMacVisual/include/opencv2/gapi/fluid/gfluidbuffer.hpp

155 lines
4.0 KiB
C++

// 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) 2018 Intel Corporation
#ifndef OPENCV_GAPI_FLUID_BUFFER_HPP
#define OPENCV_GAPI_FLUID_BUFFER_HPP
#include <list>
#include <numeric> // accumulate
#include <ostream> // ostream
#include <cstdint> // uint8_t
#include <opencv2/gapi/opencv_includes.hpp>
#include <opencv2/gapi/gmat.hpp>
#include <opencv2/gapi/util/optional.hpp>
namespace cv {
namespace gapi {
namespace fluid {
struct Border
{
// This constructor is required to support existing kernels which are part of G-API
Border(int _type, cv::Scalar _val) : type(_type), value(_val) {}
int type;
cv::Scalar value;
};
using BorderOpt = util::optional<Border>;
bool operator == (const Border& b1, const Border& b2);
class GAPI_EXPORTS Buffer;
class GAPI_EXPORTS View
{
public:
struct Cache
{
std::vector<const uint8_t*> m_linePtrs;
GMatDesc m_desc;
int m_border_size = 0;
inline const uint8_t* linePtr(int index) const
{
// "out_of_window" check:
// user must not request the lines which are outside of specified kernel window
GAPI_DbgAssert(index >= -m_border_size
&& index < -m_border_size + static_cast<int>(m_linePtrs.size()));
return m_linePtrs[index + m_border_size];
}
};
const inline uint8_t* InLineB(int index) const // -(w-1)/2...0...+(w-1)/2 for Filters
{
return m_cache->linePtr(index);
}
template<typename T> const inline T* InLine(int i) const
{
const uint8_t* ptr = this->InLineB(i);
return reinterpret_cast<const T*>(ptr);
}
inline operator bool() const { return m_priv != nullptr; }
bool ready() const;
inline int length() const { return m_cache->m_desc.size.width; }
int y() const;
inline const GMatDesc& meta() const { return m_cache->m_desc; }
class GAPI_EXPORTS Priv; // internal use only
Priv& priv(); // internal use only
const Priv& priv() const; // internal use only
View();
View(std::unique_ptr<Priv>&& p);
View(View&& v);
View& operator=(View&& v);
~View();
private:
std::unique_ptr<Priv> m_priv;
const Cache* m_cache = nullptr;
};
class GAPI_EXPORTS Buffer
{
public:
struct Cache
{
std::vector<uint8_t*> m_linePtrs;
GMatDesc m_desc;
};
// Default constructor (executable creation stage,
// all following initialization performed in Priv::init())
Buffer();
// Scratch constructor (user kernels)
Buffer(const cv::GMatDesc &desc);
// Constructor for intermediate buffers (for tests)
Buffer(const cv::GMatDesc &desc,
int max_line_consumption, int border_size,
int skew,
int wlpi,
BorderOpt border);
// Constructor for in/out buffers (for tests)
Buffer(const cv::Mat &data, bool is_input);
~Buffer();
Buffer& operator=(Buffer&&);
inline uint8_t* OutLineB(int index = 0)
{
return m_cache->m_linePtrs[index];
}
template<typename T> inline T* OutLine(int index = 0)
{
uint8_t* ptr = this->OutLineB(index);
return reinterpret_cast<T*>(ptr);
}
int y() const;
int linesReady() const;
void debug(std::ostream &os) const;
inline int length() const { return m_cache->m_desc.size.width; }
int lpi() const; // LPI for WRITER
inline const GMatDesc& meta() const { return m_cache->m_desc; }
View mkView(int borderSize, bool ownStorage);
void addView(const View* v);
class GAPI_EXPORTS Priv; // internal use only
Priv& priv(); // internal use only
const Priv& priv() const; // internal use only
private:
std::unique_ptr<Priv> m_priv;
const Cache* m_cache;
};
} // namespace cv::gapi::fluid
} // namespace cv::gapi
} // namespace cv
#endif // OPENCV_GAPI_FLUID_BUFFER_HPP