ishader.h

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#ifndef ISHADER_H_
#define ISHADER_H_

#include "texturelib.h"

typedef unsigned char BlendFactor;
const BlendFactor BLEND_ZERO = 0;
const BlendFactor BLEND_ONE = 1;
const BlendFactor BLEND_SRC_COLOUR = 2;
const BlendFactor BLEND_ONE_MINUS_SRC_COLOUR = 3;
const BlendFactor BLEND_SRC_ALPHA = 4;
const BlendFactor BLEND_ONE_MINUS_SRC_ALPHA = 5;
const BlendFactor BLEND_DST_COLOUR = 6;
const BlendFactor BLEND_ONE_MINUS_DST_COLOUR = 7;
const BlendFactor BLEND_DST_ALPHA = 8;
const BlendFactor BLEND_ONE_MINUS_DST_ALPHA = 9;
const BlendFactor BLEND_SRC_ALPHA_SATURATE = 10;

class BlendFunc
{
    public:
        BlendFunc (BlendFactor src, BlendFactor dst) :
            m_src(src), m_dst(dst)
        {
        }
        BlendFactor m_src;
        BlendFactor m_dst;
};

class IShader
{
    public:

        enum EAlphaFunc
        {
            eAlways, eEqual, eLess, eGreater, eLEqual, eGEqual,
        };

        enum ECull
        {
            eCullNone, eCullBack,
        };

        virtual ~IShader ()
        {
        }

        virtual void IncRef () = 0;

        virtual void DecRef () = 0;

        virtual qtexture_t* getTexture () const = 0;

        virtual const char* getName () const = 0;

        virtual bool IsInUse () const = 0;

        virtual void SetInUse (bool bInUse) = 0;

        virtual int getFlags () const = 0;

        virtual float getTrans () const = 0;

        virtual bool IsDefault () const = 0;

        virtual void getAlphaFunc (EAlphaFunc *func, float *ref) = 0;

        virtual BlendFunc getBlendFunc () const = 0;

        virtual ECull getCull () = 0;
};

#endif /* ISHADER_H_ */