TPixelTex2D.h

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#pragma once
 
#include "Core/Texture/TAbstractPixelTex2D.h"
#include "Frame/TFrame.h"
 
#include <Common/assertion.h>
 
#include <type_traits>
#include <utility>
 
namespace ph
{
 
template<typename T, std::size_t N>
class TPixelTex2D : public TAbstractPixelTex2D<T, N>
{
public:
    inline TPixelTex2D() :
        TPixelTex2D(TFrame<T, N>(1, 1))
    {}
 
    explicit inline TPixelTex2D(const TFrame<T, N>& frame) :
        TAbstractPixelTex2D<T, N>(frame.widthPx(), frame.heightPx()),
        m_frame(frame) 
    {
        PH_ASSERT(!m_frame.isEmpty());
    }
 
    explicit inline TPixelTex2D(TFrame<T, N>&& frame) :
        TAbstractPixelTex2D<T, N>(frame.widthPx(), frame.heightPx()),
        m_frame(std::move(frame))
    {
        PH_ASSERT(!m_frame.isEmpty());
    }
 
    void sample(
        const SampleLocation& sampleLocation, 
        TTexPixel<T, N>*      out_value) const override = 0;
 
    inline void getPixel(
        const uint32 x, const uint32 y, 
        TTexPixel<T, N>* const out_pixel) const
    {
        static_assert(std::is_same_v<TTexPixel<T, N>, typename TFrame<T, N>::PixelType>,
                      "require same pixel type");
 
        PH_ASSERT(out_pixel != nullptr);
 
        m_frame.getPixel(x, y, out_pixel);
    }
 
    inline void setPixels(const TFrame<T, N>& frame)
    {
        m_frame = frame;
        setWidthPx(frame->widthPx());
        setHeightPx(frame->heightPx());
 
        PH_ASSERT(!m_frame.isEmpty());
    }
 
private:
    TFrame<T, N> m_frame;
};
 
}// end namespace ph