glTexture.h

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/*
 * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
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#ifndef __GL_TEXTURE_H__
#define __GL_TEXTURE_H__
 
 
#include "glBuffer.h"
 
 
#ifndef GL_RGB32F
#define GL_RGB32F GL_RGB32F_ARB
#endif
 
#ifndef GL_RGBA32F
#define GL_RGBA32F GL_RGBA32F_ARB
#endif
 
 
class glTexture
{
public:
        static glTexture* Create( uint32_t width, uint32_t height, uint32_t format, void* data=NULL );
        
        ~glTexture();
        
        bool Bind();
 
        void Unbind();
 
        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* Map( uint32_t device, uint32_t flags );
 
        void Unmap();
 
        bool Copy( void* ptr, uint32_t flags );
 
        bool Copy( void* ptr, uint32_t size, uint32_t flags );
 
        bool Copy( void* ptr, uint32_t offset, uint32_t size, uint32_t flags );
 
        
private:
        glTexture();
 
        bool init( uint32_t width, uint32_t height, uint32_t format, void* data );
 
        uint32_t allocDMA( uint32_t type );
        cudaGraphicsResource* allocInterop( uint32_t type, uint32_t flags );
 
        uint32_t mID;
        uint32_t mPackDMA;
        uint32_t mUnpackDMA;
 
        uint32_t mWidth;
        uint32_t mHeight;
        uint32_t mFormat;
        uint32_t mSize;
 
        uint32_t mMapDevice;
        uint32_t mMapFlags;
 
        cudaGraphicsResource* mInteropPack;
        cudaGraphicsResource* mInteropUnpack;
};
 
 
#endif