#pragma once

struct IDisplayAdapter;
struct IResourceFactory;
struct ICommonObjectFactory;
struct IFileSystem;
struct IShader;
struct IRenderTargetBase;
struct IGeometryBuffer;
struct ITimeline;
struct IAnimationManager;

struct EngineStates
{
	IShader* LastShader;
	IRenderTargetBase* LastRenderTarget;
	IGeometryBuffer* LastVertexBufferProvider;
	IGeometryBuffer* LastIndexBufferProvider;
};

struct __declspec(novtable) IEngine
{
	virtual ~IEngine() {}

	virtual void Initialize(IDisplayAdapter* ar_Adapter_ = NULL) = 0;
	virtual void Uninitialize() = 0;

	virtual bool get_IsInitialized() const = 0;
	virtual bool get_IsUsingReferenceDriver() const = 0;

	virtual IResourceFactory& get_ResourceFactory() const = 0;
	virtual ICommonObjectFactory& get_CommonObjectFactory() const = 0;
	virtual IFileSystem& get_FileSystem() const = 0;
	virtual ITimeline& get_Timeline() const = 0;
	virtual IAnimationManager& get_AnimationManager() const = 0;
	
	virtual ID3D10Device& get_DX10Device() const = 0;
	virtual IDXGIFactory& get_DXGIFactory() const = 0;

	virtual EngineStates& get_EngineStates() = 0;
};