100 行
3.3 KiB
C
100 行
3.3 KiB
C
#ifndef cmRtSysMsg_h
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#define cmRtSysMsg_h
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#ifdef __cplusplus
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extern "C" {
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#endif
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/// Reserved DSP message selector id's (second field of all host<->audio system messages)
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enum
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{
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kMidiMsgArraySelRtId = 1000,
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kMidiSysExSelRtId,
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kUiDrvrSelRtId, // cmUiDriverArg_t message to/from the UI driver
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kUiSelRtId, // cmUiDriverArg-t message from the UI mgr to a client
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kUiMstrSelRtId, // indicates a cmDspUiHdr_t msg containing master control information for the audio system
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kStatusSelRtId, // indicates the msg is of type cmRtSysStatus_t
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kNetSyncSelRtId, // sent with a cmDspNetMsg_t object
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};
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typedef struct
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{
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unsigned rtSubIdx;
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unsigned selId; // Message selector id See kXXXSelRtId above
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} cmRtSysMsgHdr_t;
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// All of the UI messages that create a UI control contain an array of integers
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// as in the 'value' field. The array contains the id's associated with
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// the different programmable paramters which are part of the control.
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// For example a slider control has minimum,maximum, step size, and value
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// parameters. The location in the array is hard coded according to the
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// parameters meaning but the actual value of the id is left up to the
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// engine. This allows the engine to use whatever values work best for
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// it on a per instance basis.
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// Header record for all messages between the host and the DSP controllers.
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typedef struct
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{
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cmRtSysMsgHdr_t hdr;
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unsigned devIdx;
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unsigned chIdx;
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bool inFl;
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unsigned ctlId;
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double value;
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} cmRtSysMstr_t;
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/// Control id's used to identify the control type of master contols.
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enum
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{
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kSliderUiRtId = 0,
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kMeterUiRtId = 1,
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kMuteUiRtId = 2,
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kToneUiRtId = 3,
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kPassUiRtId = 4
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};
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/// Audio sub-system status record - this message can be transmitted to the host at
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/// periodic intervals. See cmRtSysStatusNotifyEnable().
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/// When transmitted to the host this record acts as the message header.
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/// This header is followed by two arrays of doubles containing the input and output meter values
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/// associated with the input and output audio devices.
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/// Message Layout: [ rtSubIdx kStatusSelId cmRtSysStatus_t iMeterArray[iMeterCnt] oMeterArray[oMeterCnt] ]
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typedef struct
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{
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cmRtSysMsgHdr_t hdr;
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unsigned updateCnt; ///< count of callbacks from the audio devices.
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unsigned wakeupCnt; ///< count of times the audio system thread has woken up after the cond. var has been signaled by the audio update thread.
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unsigned msgCbCnt; ///< count of msgs delivered via cmRtCallback() .
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unsigned audioCbCnt; ///< count of times the DSP execution was requested via cmRtCallback().
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unsigned iDevIdx; ///< Input device index
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unsigned oDevIdx; ///< Output device index
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unsigned overflowCnt; ///< count of times the audio input buffers overflowed
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unsigned underflowCnt; ///< count of times the audio output buffers underflowed
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unsigned iMeterCnt; ///< count of input meter channels
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unsigned oMeterCnt; ///< count of output meter channels
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} cmRtSysStatus_t;
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typedef struct
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{
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cmRtSysMsgHdr_t hdr;
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unsigned devIdx;
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unsigned portIdx;
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unsigned msgCnt;
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// cmMidiMsg msgArray[msgCnt]
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} cmRtSysMidi_t;
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#ifdef __cplusplus
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}
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#endif
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#endif
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