#ifndef MATERIAL_SYSTEM_H
#define MATERIAL_SYSTEM_H

#include "iappsystem.h"
#include "tier0/platform.h"


abstract_class IRenderingObject
{
public:
	virtual void SetDebugName( const char *szName ) = 0;
};

abstract_class IBuffer : public IRenderingObject
{
public:
	virtual void Lock() = 0;
	virtual void Unlock() = 0;
	virtual void *Map() = 0;
	virtual void Unmap() = 0;
};

abstract_class IVertexBuffer : public IBuffer
{
public:
};

abstract_class IIndexBuffer : public IBuffer
{
public:
};

abstract_class IMesh
{
public:
};



enum EImageFormat
{
	IMAGE_FORMAT_R8_UINT,
	IMAGE_FORMAT_RGBA8_UNORM,
	IMAGE_FORMAT_BGRA8_UNORM,
	IMAGE_FORMAT_RGBA8_UINT,
	IMAGE_FORMAT_RGBA8_SINT,
	IMAGE_FORMAT_RGBA16_SFLOAT,
	IMAGE_FORMAT_RGBA32_SFLOAT,

	IMAGE_FORMAT_D32_SFLOAT,
};

enum EMultisampleType
{
	MULTISAMPLE_TYPE_NONE,
	MULTISAMPLE_TYPE_2_SAMPLES,
	MULTISAMPLE_TYPE_4_SAMPLES,
	MULTISAMPLE_TYPE_8_SAMPLES,
};

abstract_class IImage : public IRenderingObject
{
public:

};
abstract_class IRenderContext: public IAppSystem
{
public:
	virtual void Frame( float fTime ) = 0;

	virtual IVertexBuffer *CreateVertexBuffer( uint32_t nSize ) = 0;
	virtual IIndexBuffer *CreateIndexBuffer( uint32_t nSize ) = 0;
	virtual IImage *CreateRenderTarget( uint32_t x, uint32_t y, EImageFormat eFormat, EMultisampleType eMultisampleType ) = 0;
	virtual IImage *CreateStorageImage( uint32_t x, uint32_t y, EImageFormat eFormat, EMultisampleType eMultisampleType ) = 0;

	virtual void DestroyBuffer( IBuffer *pBuffer ) = 0;
	virtual void DestroyImage( IImage *pImage ) = 0;
};

abstract_class IMaterialSystem: public IAppSystem
{
public:
	virtual void Frame( float fTime ) = 0;

	virtual IRenderContext *GetRenderContext( void) = 0;
};

IMaterialSystem *Materials( void );

#endif