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00021 #ifndef __JackEngineControl__
00022 #define __JackEngineControl__
00023
00024 #include "JackShmMem.h"
00025 #include "JackFrameTimer.h"
00026 #include "JackTransportEngine.h"
00027 #include "JackConstants.h"
00028 #include "types.h"
00029 #include <stdio.h>
00030
00031 #ifdef JACK_MONITOR
00032 #include "JackEngineProfiling.h"
00033 #endif
00034
00035 namespace Jack
00036 {
00037
00038 class JackClientInterface;
00039 class JackGraphManager;
00040
00041 #define JACK_ENGINE_ROLLING_COUNT 32
00042 #define JACK_ENGINE_ROLLING_INTERVAL 1024
00043
00048 struct SERVER_EXPORT JackEngineControl : public JackShmMem
00049 {
00050
00051 jack_nframes_t fBufferSize;
00052 jack_nframes_t fSampleRate;
00053 bool fSyncMode;
00054 bool fTemporary;
00055 jack_time_t fPeriodUsecs;
00056 jack_time_t fTimeOutUsecs;
00057 float fMaxDelayedUsecs;
00058 float fXrunDelayedUsecs;
00059 bool fTimeOut;
00060 bool fRealTime;
00061 bool fSavedRealTime;
00062 int fServerPriority;
00063 int fClientPriority;
00064 int fMaxClientPriority;
00065 char fServerName[64];
00066 JackTransportEngine fTransport;
00067 jack_timer_type_t fClockSource;
00068 int fDriverNum;
00069 bool fVerbose;
00070
00071
00072 jack_time_t fPrevCycleTime;
00073 jack_time_t fCurCycleTime;
00074 jack_time_t fSpareUsecs;
00075 jack_time_t fMaxUsecs;
00076 jack_time_t fRollingClientUsecs[JACK_ENGINE_ROLLING_COUNT];
00077 int fRollingClientUsecsCnt;
00078 int fRollingClientUsecsIndex;
00079 int fRollingInterval;
00080 float fCPULoad;
00081
00082
00083 UInt64 fPeriod;
00084 UInt64 fComputation;
00085 UInt64 fConstraint;
00086
00087
00088 JackFrameTimer fFrameTimer;
00089
00090 #ifdef JACK_MONITOR
00091 JackEngineProfiling fProfiler;
00092 #endif
00093
00094 JackEngineControl(bool sync, bool temporary, long timeout, bool rt, long priority, bool verbose, jack_timer_type_t clock, const char* server_name)
00095 {
00096 fBufferSize = 512;
00097 fSampleRate = 48000;
00098 fPeriodUsecs = jack_time_t(1000000.f / fSampleRate * fBufferSize);
00099 fSyncMode = sync;
00100 fTemporary = temporary;
00101 fTimeOut = (timeout > 0);
00102 fTimeOutUsecs = timeout * 1000;
00103 fRealTime = rt;
00104 fSavedRealTime = false;
00105 fServerPriority = priority;
00106 fClientPriority = (rt) ? priority - 5 : 0;
00107 fMaxClientPriority = (rt) ? priority - 1 : 0;
00108 fVerbose = verbose;
00109 fPrevCycleTime = 0;
00110 fCurCycleTime = 0;
00111 fSpareUsecs = 0;
00112 fMaxUsecs = 0;
00113 ResetRollingUsecs();
00114 strncpy(fServerName, server_name, sizeof(fServerName));
00115 fPeriod = 0;
00116 fComputation = 0;
00117 fConstraint = 0;
00118 fMaxDelayedUsecs = 0.f;
00119 fXrunDelayedUsecs = 0.f;
00120 fClockSource = clock;
00121 fDriverNum = 0;
00122 }
00123
00124 ~JackEngineControl()
00125 {}
00126
00127
00128 void CycleIncTime(jack_time_t callback_usecs)
00129 {
00130
00131 fFrameTimer.IncFrameTime(fBufferSize, callback_usecs, fPeriodUsecs);
00132 }
00133
00134 void CycleBegin(JackClientInterface** table, JackGraphManager* manager, jack_time_t cur_cycle_begin, jack_time_t prev_cycle_end)
00135 {
00136 fTransport.CycleBegin(fSampleRate, cur_cycle_begin);
00137 CalcCPULoad(table, manager, cur_cycle_begin, prev_cycle_end);
00138 #ifdef JACK_MONITOR
00139 fProfiler.Profile(table, manager, fPeriodUsecs, cur_cycle_begin, prev_cycle_end);
00140 #endif
00141 }
00142
00143 void CycleEnd(JackClientInterface** table)
00144 {
00145 fTransport.CycleEnd(table, fSampleRate, fBufferSize);
00146 }
00147
00148
00149 void InitFrameTime()
00150 {
00151 fFrameTimer.InitFrameTime();
00152 }
00153
00154 void ResetFrameTime(jack_time_t callback_usecs)
00155 {
00156 fFrameTimer.ResetFrameTime(fSampleRate, callback_usecs, fPeriodUsecs);
00157 }
00158
00159 void ReadFrameTime(JackTimer* timer)
00160 {
00161 fFrameTimer.ReadFrameTime(timer);
00162 }
00163
00164
00165 void NotifyXRun(jack_time_t callback_usecs, float delayed_usecs);
00166 void ResetXRun()
00167 {
00168 fMaxDelayedUsecs = 0.f;
00169 }
00170
00171
00172 void CalcCPULoad(JackClientInterface** table, JackGraphManager* manager, jack_time_t cur_cycle_begin, jack_time_t prev_cycle_end);
00173 void ResetRollingUsecs();
00174
00175 } POST_PACKED_STRUCTURE;
00176
00177 }
00178
00179 #endif