radeonproducer.h

ati driver

/******************************************************************************
/
/	File:			RadeonProducer.h
/
/	Description:	ATI Radeon Video Producer media node.
/
/	Copyright 2001, Carlos Hasan
/
*******************************************************************************/

#ifndef __RADEON_PRODUCER_H__
#define __RADEON_PRODUCER_H__

#include <kernel/OS.h>
#include <media/BufferProducer.h>
#include <media/Controllable.h>
#include <media/MediaDefs.h>
#include <media/MediaEventLooper.h>
#include <media/MediaNode.h>
#include <support/Locker.h>
#include "VideoIn.h"

class CRadeonAddOn;

class CRadeonProducer :
	public virtual BMediaEventLooper,
	public virtual BBufferProducer,
	public virtual BControllable
{
public:
					CRadeonProducer(
						CRadeonAddOn *addon, const char *name, const char *device_name, 
						int32 internal_id, BMessage *config );
virtual				~CRadeonProducer();

void				setupWeb();
virtual	status_t		InitCheck() const { return fInitStatus; }

/* BMediaNode */
public:
virtual port_id		ControlPort() const;
virtual	BMediaAddOn	*AddOn(int32 * internal_id) const;
virtual	status_t 	HandleMessage(int32 message, const void *data,
							size_t size);
protected:	
virtual	void 		Preroll();
virtual void		SetTimeSource(BTimeSource * time_source);
virtual status_t	RequestCompleted(const media_request_info & info);

/* BMediaEventLooper */
protected:
virtual	void 		NodeRegistered();
virtual void		Start(bigtime_t performance_time);
virtual void		Stop(bigtime_t performance_time, bool immediate);
virtual void		Seek(bigtime_t media_time, bigtime_t performance_time);
virtual void		TimeWarp(bigtime_t at_real_time,
							bigtime_t to_performance_time);
virtual status_t	AddTimer(bigtime_t at_performance_time, int32 cookie);
virtual void		SetRunMode(run_mode mode);
virtual void		HandleEvent(const media_timed_event *event,
							bigtime_t lateness, bool realTimeEvent = false);
virtual void		CleanUpEvent(const media_timed_event *event);
virtual bigtime_t	OfflineTime();
virtual void		ControlLoop();
virtual status_t	DeleteHook(BMediaNode * node);

/* BBufferProducer */									
protected:
virtual	status_t	FormatSuggestionRequested(media_type type, int32 quality,
							media_format * format);
virtual	status_t 	FormatProposal(const media_source &output,
							media_format *format);
virtual	status_t	FormatChangeRequested(const media_source &source,
							const media_destination &destination,
							media_format *io_format, int32 *_deprecated_);
virtual	status_t 	GetNextOutput(int32 * cookie, media_output * out_output);
virtual	status_t	DisposeOutputCookie(int32 cookie);
virtual	status_t	SetBufferGroup(const media_source &for_source,
							BBufferGroup * group);
virtual	status_t 	VideoClippingChanged(const media_source &for_source,
							int16 num_shorts, int16 *clip_data,
							const media_video_display_info &display,
							int32 * _deprecated_);
virtual	status_t	GetLatency(bigtime_t * out_latency);
virtual	status_t	PrepareToConnect(const media_source &what,
							const media_destination &where,
							media_format *format,
							media_source *out_source, char *out_name);
virtual	void		Connect(status_t error, const media_source &source,
							const media_destination &destination,
							const media_format & format, char *io_name);
virtual	void 		Disconnect(const media_source & what,
							const media_destination & where);
virtual	void 		LateNoticeReceived(const media_source & what,
							bigtime_t how_much, bigtime_t performance_time);
virtual	void 		EnableOutput(const media_source & what, bool enabled,
							int32 * _deprecated_);
virtual	status_t	SetPlayRate(int32 numer,int32 denom);
virtual	void 		AdditionalBufferRequested(const media_source & source,
							media_buffer_id prev_buffer, bigtime_t prev_time,
							const media_seek_tag * prev_tag);
virtual	void		LatencyChanged(const media_source & source,
							const media_destination & destination,
							bigtime_t new_latency, uint32 flags);

/* BControllable */									
protected:
virtual status_t	GetParameterValue(int32 id, bigtime_t *last_change,
							void *value, size_t *size);
virtual void		SetParameterValue(int32 id, bigtime_t when,
							const void *value, size_t size);
virtual status_t	StartControlPanel(BMessenger *out_messenger);

public:
		enum {
			C_GET_CONFIGURATION = BTimedEventQueue::B_USER_EVENT,
			C_GET_CONFIGURATION_REPLY
		};
		
		struct configuration_msg {
			port_id reply_port;
		};
		
		struct configuration_msg_reply {
			status_t 		res;
			size_t			config_size;
			char			config;
		};

/* state */
private:
		void				HandleStart(bigtime_t performance_time);
		void				HandleStop();
		void				HandleTimeWarp(bigtime_t performance_time);
		void				HandleSeek(bigtime_t performance_time);
		void				HandleHardware();
		
		// home-brewed extension
		status_t			GetConfiguration( BMessage *out );
		
		CVideoIn			fVideoIn;
		
		status_t			fInitStatus;

		int32				fInternalID;
		CRadeonAddOn		*fAddOn;

		BBufferGroup		*fBufferGroup;
		//BBufferGroup		*fUsedBufferGroup;
		
static	int32				_frame_generator_(void *data);
		int32				FrameGenerator();

		/* The remaining variables should be declared volatile, but they
		 * are not here to improve the legibility of the sample code. */
		//uint32				fFrame;
		uint32				fFieldSequenceBase;
		//bigtime_t			fPerformanceTimeBase;
		bigtime_t			fProcessingLatency;
		media_output		fOutput;
		//media_raw_video_format	fConnectedFormat;
		//bool				fConnected;
		bool				fEnabled;

		// use fixed names as they are used in settings file
		enum EOptions		{ 
			P_SOURCE		= 'VSRC', 
			P_AUDIO_SOURCE	= 'ASRC',
			P_AUDIO_FORMAT	= 'AFMT',
			P_VOLUME		= 'VOL ',
			P_STANDARD		= 'TVST',
			P_MODE			= 'CMOD',
			P_FORMAT		= 'VFMT',
			P_RESOLUTION	= 'RES ',
			P_TUNER			= 'TUNR',
			P_BRIGHTNESS	= 'BRGT',
			P_CONTRAST		= 'CONT',
			P_SATURATION	= 'SATU',
			P_HUE			= 'HUE ',
			P_SHARPNESS		= 'SHRP' 
		};
		
		enum { C_RESOLUTION_MAX = 6 };
		enum { C_CHANNEL_MAX = 125 };
		
		int32				fSource;
		int32				fStandard;
		int32				fMode;
		int32				fCurMode;	// mode, overwritten by application
		int32				fFormat;
		int32				fResolution;
		int32				fTuner;		
		int32				fBrightness;
		int32				fContrast;
		int32				fSaturation;
		int32				fHue;
		int32				fSharpness;
		bigtime_t			fSourceLastChange;
		bigtime_t			fStandardLastChange;
		bigtime_t			fModeLastChange;
		bigtime_t			fFormatLastChange;
		bigtime_t			fResolutionLastChange;
		bigtime_t			fTunerLastChange;
		bigtime_t			fBrightnessLastChange; 
		bigtime_t			fContrastLastChange;
		bigtime_t			fSaturationLastChange;
		bigtime_t			fHueLastChange;
		bigtime_t			fSharpnessLastChange;

		status_t	AddInt32( 
			BMessage *msg, EOptions option, int32 value );
			
		status_t	FindInt32( 
			BMessage *config, EOptions option, int32 min_value, int32 max_value, 
			int32 default_value, int32 *value );

	// format negotiation helpers
	status_t	verifySetMode( media_format *format );
	int32		extractCaptureMode( const media_format *format );
	status_t 	verifySetPixelAspect( media_format *format );
	status_t 	verifyActiveRange( media_format *format );
	void		setActiveRange( media_format *format );
	status_t	verifyOrientation( media_format *format );
	void		setOrientation( media_format *format );
	status_t	verifyPixelFormat( media_format *format );
	void		setPixelFormat( media_format *format );
	status_t	verifySetSize( media_format *format, int32 mode, bool set_bytes_per_row );
	status_t 	verifyFormatOffsets( media_format *format );
	void		setFormatOffsets( media_format *format );
	status_t	verifyFormatFlags( media_format *format );
	void		setFormatFlags( media_format *format );
	
	status_t	finalizeFormat( media_format *format );
	
	void		startCapturing();
	void	 	captureField( bigtime_t *capture_time );
	void		setDefaultBufferGroup();
	void		instantFormatChange( media_format *new_format );
};

#endif