/*
 * Copyright 2001-2008, Haiku.
 * Distributed under the terms of the MIT License.
 *
 * Authors:
 *		Stefano Ceccherini <stefano.ceccherini@gmail.com>
 */
#ifndef	_DIRECT_WINDOW_H
#define	_DIRECT_WINDOW_H


#include <Region.h>
#include <Window.h>


enum direct_buffer_state {
	B_DIRECT_MODE_MASK	= 15,

	B_DIRECT_START		= 0,
	B_DIRECT_STOP		= 1,
	B_DIRECT_MODIFY		= 2,
	
	B_CLIPPING_MODIFIED = 16,
	B_BUFFER_RESIZED 	= 32,
	B_BUFFER_MOVED 		= 64,
	B_BUFFER_RESET	 	= 128
};


enum direct_driver_state {
	B_DRIVER_CHANGED	= 0x0001,
	B_MODE_CHANGED		= 0x0002
};


typedef struct {
	direct_buffer_state	buffer_state;
	direct_driver_state	driver_state;
	void				*bits;
	void				*pci_bits;
	int32				bytes_per_row;
	uint32				bits_per_pixel;
	color_space			pixel_format;
	buffer_layout		layout;
	buffer_orientation	orientation;
	uint32				_reserved[9];
	uint32				_dd_type_;
	uint32				_dd_token_;
	uint32				clip_list_count;
	clipping_rect		window_bounds;
	clipping_rect		clip_bounds;
	clipping_rect		clip_list[1];
} direct_buffer_info;


class BDirectWindow : public BWindow {
	public:
								BDirectWindow(BRect frame, const char *title,
									window_type type, uint32 flags,
									uint32 workspace = B_CURRENT_WORKSPACE);
								BDirectWindow(BRect frame, const char *title,
									window_look look, window_feel feel,
									uint32 flags,
									uint32 workspace = B_CURRENT_WORKSPACE);
		virtual					~BDirectWindow();

		static	BArchivable*	Instantiate(BMessage *data);
		virtual	status_t		Archive(BMessage *data,
									bool deep = true) const;

		virtual	void			Quit();
		virtual	void			DispatchMessage(BMessage *message,
									BHandler *handler);
		virtual	void			MessageReceived(BMessage *message);
		virtual	void			FrameMoved(BPoint newPosition);
		virtual	void			WorkspacesChanged(uint32 oldWorkspaces,
									uint32 newWorkspaces);
		virtual	void			WorkspaceActivated(int32 workspaceIndex,
									bool state);
		virtual	void			FrameResized(float newWidth, float newHeight);
		virtual	void			Minimize(bool minimize);
		virtual	void			Zoom(BPoint recPosition, float recWidth,
									float recHeight);
		virtual	void			ScreenChanged(BRect screenFrame,
									color_space depth);
		virtual	void			MenusBeginning();
		virtual	void			MenusEnded();
		virtual	void			WindowActivated(bool state);
		virtual	void			Show();
		virtual	void			Hide();
		virtual	BHandler*		ResolveSpecifier(BMessage *message,
									int32 index, BMessage *specifier,
									int32 form, const char *property);
		virtual	status_t		GetSupportedSuites(BMessage *data);
		virtual	status_t		Perform(perform_code code, void *arg);

	private:
		virtual	void			task_looper();
		virtual	BMessage*		ConvertToMessage(void *raw, int32 code);

	public:	
		virtual	void			DirectConnected(direct_buffer_info *info);
		status_t				GetClippingRegion(BRegion *region,
									BPoint *origin = NULL) const;
		status_t				SetFullScreen(bool enable);
		bool					IsFullScreen() const;

		static	bool			SupportsWindowMode(
									screen_id id = B_MAIN_SCREEN_ID);

	private:
		typedef	BWindow			inherited;

		virtual	void			_ReservedDirectWindow1();
		virtual	void			_ReservedDirectWindow2();
		virtual	void			_ReservedDirectWindow3();
		virtual	void			_ReservedDirectWindow4();

								BDirectWindow();
								BDirectWindow(BDirectWindow& other);
				BDirectWindow&	operator=(BDirectWindow& other);

		static	int32			_daemon_thread(void* arg);
				int32			_DirectDaemon();
				bool			_LockDirect() const;
				void			_UnlockDirect() const;

				void			_InitData();
				void			_DisposeData();

				bool			fDaemonKiller;
				bool			fConnectionEnable;
				bool			fIsFullScreen;
				bool			_unused;
				bool			fInDirectConnect;

				int32			fDirectLock;
				sem_id			fDirectSem;
				uint32			fDirectLockCount;
				thread_id		fDirectLockOwner;
				char*			fDirectLockStack;

				sem_id			fDisableSem;
				sem_id			fDisableSemAck;

				uint32			fInitStatus;
				uint32			fInfoAreaSize;

				uint32			_reserved[2];

				area_id			fClonedClippingArea;
				area_id			fSourceClippingArea;
				thread_id		fDirectDaemonId;
				direct_buffer_info*	fBufferDesc;

				uint32			_more_reserved_[17];
};


#endif	// _DIRECT_WINDOW_H