glTexture.h

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/*
 * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
 *
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 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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#ifndef __GL_TEXTURE_H__
#define __GL_TEXTURE_H__


#include "cudaUtility.h"
#include "cuda_gl_interop.h"


class glTexture
{
public:
        static glTexture* Create( uint32_t width, uint32_t height, uint32_t format, void* data=NULL );
        ~glTexture();
        
        void Render( float x, float y );
        void Render( float x, float y, float width, float height );
        void Render( const float4& rect );
        
        inline uint32_t GetID() const           { return mID; }
        inline uint32_t GetWidth() const        { return mWidth; }
        inline uint32_t GetHeight() const       { return mHeight; }
        inline uint32_t GetFormat() const       { return mFormat; }
        inline uint32_t GetSize() const { return mSize; }
        
        void* MapCUDA();
        void  Unmap();
        
        bool UploadCPU( void* data );
        
private:
        glTexture();
        bool init(uint32_t width, uint32_t height, uint32_t format, void* data);
        
        uint32_t mID;
        uint32_t mDMA;
        uint32_t mWidth;
        uint32_t mHeight;
        uint32_t mFormat;
        uint32_t mSize;
        
        cudaGraphicsResource* mInteropCUDA;
        void* mInteropHost;
        void* mInteropDevice;
};


#endif