* Rewrote TimeSource.h.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32696 a95241bf-73f2-0310-859d-f6bbb57e9c96
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Axel Dörfler
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@ -1,150 +1,126 @@
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/*******************************************************************************
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/
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/ File: TimeSource.h
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/
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/ Description: A BTimeSource is something to which others can slave timing information
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/ using the Media Kit.
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/
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/ Copyright 1997-98, Be Incorporated, All Rights Reserved
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/
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*******************************************************************************/
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#if !defined(_TIME_SOURCE_H)
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/*
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* Copyright 2009, Haiku Inc. All Rights Reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _TIME_SOURCE_H
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#define _TIME_SOURCE_H
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#include <MediaDefs.h>
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#include <MediaNode.h>
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class _BSlaveNodeStorageP;
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namespace BPrivate { namespace media {
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class BMediaRosterEx;
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class TimeSourceObject;
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class SystemTimeSourceObject;
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class SlaveNodes;
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struct TimeSourceTransmit;
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} }
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namespace BPrivate {
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namespace media {
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class BMediaRosterEx;
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class TimeSourceObject;
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class SystemTimeSourceObject;
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class SlaveNodes;
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struct TimeSourceTransmit;
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}
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}
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class BTimeSource :
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public virtual BMediaNode
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{
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class BTimeSource : public virtual BMediaNode {
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protected:
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/* this has to be at the top to force a vtable */
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virtual ~BTimeSource();
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virtual ~BTimeSource();
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public:
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virtual status_t SnoozeUntil(bigtime_t performanceTime,
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bigtime_t withLatency = 0,
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bool retrySignals = false);
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virtual status_t SnoozeUntil( /* returns error if stopped */
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bigtime_t performance_time,
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bigtime_t with_latency = 0,
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bool retry_signals = false);
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bigtime_t Now();
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bigtime_t PerformanceTimeFor(bigtime_t realTime);
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bigtime_t RealTimeFor(bigtime_t performanceTime,
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bigtime_t withLatency);
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bool IsRunning();
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bigtime_t Now(); /* convenience, less accurate */
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bigtime_t PerformanceTimeFor( /* all three go through GetTime() */
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bigtime_t real_time);
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bigtime_t RealTimeFor(
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bigtime_t performance_time,
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bigtime_t with_latency);
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bool IsRunning();
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status_t GetTime(bigtime_t* _performanceTime,
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bigtime_t* _realTime, float* _drift);
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status_t GetStartLatency(bigtime_t* _latency);
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status_t GetTime( /* return B_OK if reading is usable */
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bigtime_t * performance_time,
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bigtime_t * real_time,
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float * drift);
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static bigtime_t RealTime(); /* this produces real time, nothing else is guaranteed to */
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status_t GetStartLatency(
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bigtime_t * out_latency);
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static bigtime_t RealTime();
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protected:
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BTimeSource();
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BTimeSource();
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virtual status_t HandleMessage(int32 message, const void* data,
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size_t size);
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virtual status_t HandleMessage(
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int32 message,
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const void * data,
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size_t size);
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void PublishTime(bigtime_t performanceTime,
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bigtime_t realTime, float drift);
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void PublishTime( /* call this at convenient times to update approximation */
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bigtime_t performance_time,
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bigtime_t real_time,
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float drift);
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void BroadcastTimeWarp(bigtime_t atRealTime,
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bigtime_t newPerformanceTime);
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void BroadcastTimeWarp(
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bigtime_t at_real_time,
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bigtime_t new_performance_time); /* when running */
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void SendRunMode(
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run_mode mode);
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void SendRunMode(run_mode mode);
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virtual void SetRunMode(run_mode mode);
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virtual void SetRunMode(
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run_mode mode); /* or, instead, SendRunMode() */
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enum time_source_op {
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B_TIMESOURCE_START = 1,
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B_TIMESOURCE_STOP,
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B_TIMESOURCE_STOP_IMMEDIATELY,
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B_TIMESOURCE_SEEK
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};
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enum time_source_op {
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B_TIMESOURCE_START = 1,
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B_TIMESOURCE_STOP,
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B_TIMESOURCE_STOP_IMMEDIATELY,
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B_TIMESOURCE_SEEK
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};
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struct time_source_op_info {
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time_source_op op;
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int32 _reserved1;
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bigtime_t real_time;
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bigtime_t performance_time;
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int32 _reserved2[6];
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};
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virtual status_t TimeSourceOp(
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const time_source_op_info & op,
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void * _reserved) = 0;
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struct time_source_op_info {
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time_source_op op;
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int32 _reserved1;
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bigtime_t real_time;
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bigtime_t performance_time;
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int32 _reserved2[6];
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};
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virtual status_t TimeSourceOp(const time_source_op_info& op,
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void* _reserved) = 0;
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private:
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friend class BMediaNode;
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friend class BMediaRoster;
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friend class BPrivate::media::BMediaRosterEx;
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friend class BPrivate::media::TimeSourceObject;
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friend class BPrivate::media::SystemTimeSourceObject;
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friend class BPrivate::media::TimeSourceObject;
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BTimeSource( /* private unimplemented */
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const BTimeSource & clone);
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BTimeSource & operator=(
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const BTimeSource & clone);
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BTimeSource(const BTimeSource& other);
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BTimeSource& operator=(const BTimeSource& other);
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// not implemented
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/* Mmmh, stuffing! */
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status_t _Reserved_TimeSource_0(void *); // TimeSourceOp()
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virtual status_t _Reserved_TimeSource_1(void *);
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virtual status_t _Reserved_TimeSource_2(void *);
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virtual status_t _Reserved_TimeSource_3(void *);
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virtual status_t _Reserved_TimeSource_4(void *);
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virtual status_t _Reserved_TimeSource_5(void *);
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explicit BTimeSource(media_node_id id);
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bool fStarted;
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area_id fArea;
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volatile BPrivate::media::TimeSourceTransmit *fBuf;
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BPrivate::media::SlaveNodes *fSlaveNodes;
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status_t _Reserved_TimeSource_0(void*);
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// used for TimeSourceOp()
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virtual status_t _Reserved_TimeSource_1(void*);
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virtual status_t _Reserved_TimeSource_2(void*);
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virtual status_t _Reserved_TimeSource_3(void*);
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virtual status_t _Reserved_TimeSource_4(void*);
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virtual status_t _Reserved_TimeSource_5(void*);
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area_id _reserved_area;
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bool fIsRealtime;
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bool _reserved_bool_[3];
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uint32 _reserved_time_source_[10];
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virtual status_t RemoveMe(BMediaNode* node);
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virtual status_t AddMe(BMediaNode* node);
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explicit BTimeSource(
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media_node_id id);
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void FinishCreate(); /* called by roster and/or server */
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void FinishCreate();
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virtual status_t RemoveMe(BMediaNode * node);
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virtual status_t AddMe(BMediaNode * node);
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void DirectStart(bigtime_t at);
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void DirectStop(bigtime_t at, bool immediate);
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void DirectSeek(bigtime_t to, bigtime_t at);
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void DirectSetRunMode(run_mode mode);
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void DirectAddMe(const media_node& node);
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void DirectRemoveMe(const media_node& node);
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void DirectStart(bigtime_t at);
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void DirectStop(bigtime_t at, bool immediate);
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void DirectSeek(bigtime_t to, bigtime_t at);
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void DirectSetRunMode(run_mode mode);
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void DirectAddMe(const media_node &node);
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void DirectRemoveMe(const media_node &node);
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private:
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bool fStarted;
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area_id fArea;
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volatile BPrivate::media::TimeSourceTransmit* fBuf;
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BPrivate::media::SlaveNodes* fSlaveNodes;
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area_id _reserved_area;
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bool fIsRealtime;
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bool _reserved_bool_[3];
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uint32 _reserved_time_source_[10];
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};
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#endif /* _TIME_SOURCE_H */
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#endif // _TIME_SOURCE_H
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