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#ifndef MIPMAPBSDF_H
#define MIPMAPBSDF_H
#include "foundation/Qt3DSVec3.h"
#include "foundation/Qt3DSSimpleTypes.h"
#include "foundation/Qt3DSPerfTimer.h"
#include "foundation/Qt3DSAtomic.h"
#include "render/Qt3DSRenderBaseTypes.h"
#include "render/backends/Qt3DSRenderBackend.h"
#include "render/Qt3DSRenderTexture2D.h"
#include "render/backends/gl/Qt3DSOpenGLUtil.h"

#include "Qt3DSRenderLoadedTexture.h"

#include "Qt3DSTypes.h"
#ifdef _LINUXPLATFORM
#define __declspec(dllexport)
#define __cdecl

#endif
using namespace qt3ds::render;

class BSDFMipMap : public NVRefCounted
{
public:
    BSDFMipMap(NVRenderContext *inNVRenderContext, int inWidth, int inHeight,
               NVRenderTexture2D &inTexture, NVRenderTextureFormats::Enum inDestFormat,
               qt3ds::NVFoundationBase &inFnd);
    virtual ~BSDFMipMap();

    virtual void Build(void *inTextureData, int inTextureDataSize,
                       NVRenderBackend::NVRenderBackendTextureObject inTextureHandle,
                       NVRenderTextureFormats::Enum inFormat) = 0;
    static BSDFMipMap *Create(NVRenderContext *inNVRenderContext, int inWidth, int inHeight,
                              NVRenderTexture2D &inTexture,
                              NVRenderTextureFormats::Enum inDestFormat,
                              qt3ds::NVFoundationBase &inFnd);

protected:
    volatile QT3DSI32 mRefCount; ///< reference count
    NVFoundationBase &m_Foundation; ///< Foundation class for allocations and other base things

    NVRenderTexture2D &m_Texture2D;
    NVRenderTextureFormats::Enum m_InternalFormat;
    NVRenderTextureFormats::Enum m_DestinationFormat;
    int m_Width;
    int m_Height;
    int m_MaxMipMapLevel;
    int m_SizeOfFormat;
    int m_SizeOfInternalFormat;
    int m_InternalNoOfComponent;
    int m_NoOfComponent;
    NVRenderContext *m_NVRenderContext;
};

class BasicBSDFMipMap : public BSDFMipMap
{
public:
    BasicBSDFMipMap(NVRenderContext *inNVRenderContext, int inWidth, int inHeight,
                    NVRenderTexture2D &inTexture, NVRenderTextureFormats::Enum inDestFormat,
                    qt3ds::NVFoundationBase &inFnd);

    void Build(void *inTextureData, int inTextureDataSize,
               NVRenderBackend::NVRenderBackendTextureObject inTextureHandle,
               NVRenderTextureFormats::Enum inFormat);

    STextureData CreateBsdfMipLevel(STextureData &inCurMipLevel, STextureData &inPrevMipLevel,
                                    int width, int height); //, IPerfTimer& inPerfTimer );
    QT3DS_IMPLEMENT_REF_COUNT_ADDREF_RELEASE(m_Foundation);

    int wrapMod(int a, int base);
    void getWrappedCoords(int &sX, int &sY, int width, int height);
    NVRenderBackend::NVRenderBackendTextureObject m_TextureHandle;
};

#endif