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#ifndef GLCOMPUTE_BSDF_MIMAP_H
#define GLCOMPUTE_BSDF_MIMAP_H

#include "render/Qt3DSRenderBaseTypes.h"
#include "render/backends/Qt3DSRenderBackend.h"
#include "MipmapBSDF.h"

#include "Qt3DSRenderLoadedTexture.h"
#include "Qt3DSTypes.h"

using namespace qt3ds::render;

class qt3ds::render::NVRenderContext;
class qt3ds::render::NVRenderShaderProgram;
class qt3ds::render::NVRenderTexture2D;

class GLComputeMipMap : public BSDFMipMap
{
public:
    GLComputeMipMap(NVRenderContext *inNVRenderContext, int inWidth, int inHeight,
                    NVRenderTexture2D &inTexture, NVRenderTextureFormats::Enum inDestFormat,
                    qt3ds::NVFoundationBase &inFnd);
    ~GLComputeMipMap();
    void Build(void *inTextureData, int inTextureDataSize,
               NVRenderBackend::NVRenderBackendTextureObject inTextureHandle,
               NVRenderTextureFormats::Enum inFormat);
    QT3DS_IMPLEMENT_REF_COUNT_ADDREF_RELEASE(m_Foundation);

private:
    void CreateLevel0Tex(void *inTextureData, int inTextureDataSize,
                         NVRenderTextureFormats::Enum inFormat);

    NVScopedRefCounted<NVRenderShaderProgram> m_BSDFProgram;
    NVScopedRefCounted<NVRenderShaderProgram> m_UploadProgram_RGBA8;
    NVScopedRefCounted<NVRenderShaderProgram> m_UploadProgram_RGB8;
    NVScopedRefCounted<NVRenderTexture2D> m_Level0Tex;
    bool m_TextureCreated;

    void createComputeProgram(NVRenderContext *context);
    NVRenderShaderProgram *getOrCreateUploadComputeProgram(NVRenderContext *context,
                                                           NVRenderTextureFormats::Enum inFormat);
};

#endif