WorkUnit.h

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#pragma once
 
#include "Math/Geometry/TAABB2D.h"
#include "Core/Scheduler/Region.h"
 
#include <Common/assertion.h>
 
namespace ph
{
 
class WorkUnit
{
public:
    WorkUnit();
 
    explicit WorkUnit(const Region& region);
 
    WorkUnit(const Region& region, std::size_t depth);
 
    Region getRegion() const;
    int64 getWidth() const;
    int64 getHeight() const;
    std::size_t getDepth() const;
    std::size_t getVolume() const;
    float64 getAspectRatio() const;
 
    std::string toString() const;
 
private:
    Region      m_region;
    std::size_t m_depth;
};
 
// In-header Implementations:
 
inline WorkUnit::WorkUnit() :
    WorkUnit({{0, 0}, {0, 0}}, 0)
{}
 
inline WorkUnit::WorkUnit(const Region& region) :
    WorkUnit(region, 1)
{}
 
inline WorkUnit::WorkUnit(const Region& region, const std::size_t depth) :
    m_region(region),
    m_depth(depth)
{
    PH_ASSERT_MSG(!m_region.isEmpty(), "region = " + m_region.toString());
}
 
inline int64 WorkUnit::getWidth() const
{
    return m_region.getWidth();
}
 
inline int64 WorkUnit::getHeight() const
{
    return m_region.getHeight();
}
 
inline Region WorkUnit::getRegion() const
{
    return m_region;
}
 
inline std::size_t WorkUnit::getDepth() const
{
    return m_depth;
}
 
inline std::size_t WorkUnit::getVolume() const
{
    PH_ASSERT(!m_region.isEmpty());
 
    return static_cast<std::size_t>(m_region.getArea()) * m_depth;
}
 
inline float64 WorkUnit::getAspectRatio() const
{
    PH_ASSERT_GE(m_region.getWidth(),  0);
    PH_ASSERT_GT(m_region.getHeight(), 0);
 
    return static_cast<float64>(m_region.getWidth()) / static_cast<float64>(m_region.getHeight());
}
 
inline std::string WorkUnit::toString() const
{
    return "region = " + m_region.toString() + ", depth = " + std::to_string(m_depth);
}
 
}// end namespace ph