kraken/KREngine/KREngine/Classes/KRTexture.h

//
//  KRTexture.h
//  KREngine
//
//  Copyright 2012 Kearwood Gilbert. All rights reserved.
//
//  Redistribution and use in source and binary forms, with or without modification, are
//  permitted provided that the following conditions are met:
//
//  1. Redistributions of source code must retain the above copyright notice, this list of
//  conditions and the following disclaimer.
//
//  2. Redistributions in binary form must reproduce the above copyright notice, this list
//  of conditions and the following disclaimer in the documentation and/or other materials
//  provided with the distribution.
//
//  THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
//  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
//  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
//  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
//  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
//  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
//  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
//  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
//  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
//  The views and conclusions contained in the software and documentation are those of the
//  authors and should not be interpreted as representing official policies, either expressed
//  or implied, of Kearwood Gilbert.
//



#ifndef KRTEXTURE_H
#define KRTEXTURE_H

#import "KREngine-common.h"
#import "KRContextObject.h"


class KRDataBlock;

class KRTexture : public KRContextObject{
public:
    KRTexture(KRContext &context);
    virtual ~KRTexture();

    virtual void bind(size_t &textureMemUsed, int max_dim, bool can_resize) = 0;
    void releaseHandle(size_t &textureMemUsed);
    long getMemSize();


    
protected:
    virtual bool createGLTexture(int lod_max_dim) = 0;
    GLuint getHandle(int max_dim, bool can_resize);
    
    
    GLuint  m_iHandle;
    size_t  m_textureMemUsed;
    
    int m_current_lod_max_dim;
    
    uint32_t m_max_lod_max_dim;
    uint32_t m_min_lod_max_dim;
};


#endif /* defined(KRTEXTURE_H) */