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1 // Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // |
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15 |
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16 #ifndef __MIDISTANDARDCUSTOMCOMMANDS_H__ |
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17 #define __MIDISTANDARDCUSTOMCOMMANDS_H__ |
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18 |
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19 #include <mmf/common/mmfcontroller.h> |
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20 #include <midiclientutility.h> |
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21 #include <mmf/common/mmfmidi.h> |
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22 |
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23 /** |
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24 Interface UID for the Midi Controller API. |
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25 |
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26 @publishedAll |
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27 @released |
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28 */ |
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29 const TUid KUidInterfaceMidi = { 0x101F945C }; |
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30 |
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31 /** |
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32 Describe a MIDI event. |
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33 Contains a UID to define the actual event type, and an integer to define the event code. |
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34 |
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35 @publishedAll |
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36 @released |
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37 */ |
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38 class CMMFMidiEvent: public CBase |
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39 { |
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40 public: |
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41 IMPORT_C CMMFMidiEvent(TUid aEventType, TInt aErrorCode); |
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42 IMPORT_C CMMFMidiEvent(); |
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43 IMPORT_C ~CMMFMidiEvent(); |
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44 IMPORT_C void ExternalizeL(RWriteStream& aStream) const; |
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45 IMPORT_C void InternalizeL(RReadStream& aStream); |
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46 IMPORT_C void CopyL(const CMMFMidiEvent& aOther); |
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47 /** |
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48 @internalTechnology |
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49 */ |
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50 void ZeroMembers(); |
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51 public: |
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52 /** |
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53 * A UID to define the type of MIDI event. |
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54 */ |
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55 TUid iEventType; |
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56 /** |
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57 * The error code associated with the MIDI event. |
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58 */ |
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59 TInt iErrorCode; |
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60 /** |
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61 * Old state of the MIDI client utility object. |
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62 */ |
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63 TMidiState iOldState; |
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64 /** |
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65 * Current state of the MIDI client utility object. |
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66 */ |
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67 TMidiState iNewState; |
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68 /** |
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69 * General purpose time stamp in microseconds. |
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70 */ |
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71 TTimeIntervalMicroSeconds iMicroSeconds; |
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72 /** |
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73 * General purpose time stamp in micro beats per minute. |
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74 */ |
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75 TInt64 iMicroBeats; |
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76 /** |
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77 * Channel |
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78 */ |
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79 TInt iChannel; |
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80 /** |
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81 * Volume in decibel of a logical channel. |
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82 */ |
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83 TReal32 iVolumeInDecibels; |
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84 /** |
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85 * Mute state of a track or of a channel. |
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86 */ |
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87 TBool iMute; |
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88 /** |
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89 * Meta data entry. |
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90 * Client will retrieve meta data entry by calling GetMetaDataEntryL() |
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91 * using this TInt to indicate which meta data entry to retrieve. |
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92 */ |
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93 TInt iMetaDataEntryId; |
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94 /** |
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95 * Array of logical {channel, MIP} value pairs. |
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96 */ |
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97 RArray<TMipMessageEntry> iMipMessage; |
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98 /** |
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99 * Polyphony of the MIDI engine. |
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100 */ |
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101 TInt iPolyphony; |
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102 /** |
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103 * Identifier of a bank occupying, at most, 14 bits. |
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104 */ |
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105 TInt iBankId; |
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106 /** |
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107 * Identifier of a specific instrument. |
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108 */ |
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109 TInt iInstrumentId; |
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110 /** |
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111 * Tempo value in micro beats per minute. |
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112 */ |
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113 TInt iTempoMicroBeats; |
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114 }; |
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115 |
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116 /** |
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117 Client class to access functionality specific to a MIDI controller. |
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118 The class uses the custom command function of the controller plugin, and removes the necessity |
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119 for the client to formulate the custom commands. |
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120 |
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121 @publishedAll |
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122 @released |
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123 */ |
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124 class RMidiControllerCustomCommands : public RMMFCustomCommandsBase |
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125 { |
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126 public: |
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127 IMPORT_C RMidiControllerCustomCommands(RMMFController& aController); |
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128 IMPORT_C TInt SetPositionMicroBeats(TInt64 aMicroBeats) const; |
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129 IMPORT_C TInt PositionMicroBeats(TInt64& aMicroBeats) const; |
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130 IMPORT_C TInt PlayNote(TInt aChannel,TInt aNote,const TTimeIntervalMicroSeconds& aDuration,TInt aNoteOnVelocity,TInt aNoteOffVelocity); |
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131 IMPORT_C TInt PlayNote(TInt aChannel,TInt aNote,const TTimeIntervalMicroSeconds& aStartTime, const TTimeIntervalMicroSeconds& aDuration,TInt aNoteOnVelocity,TInt aNoteOffVelocity); |
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132 IMPORT_C TInt StopNotes(TInt aChannel); |
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133 IMPORT_C TInt NoteOn(TInt aChannel,TInt aNote,TInt aVelocity); |
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134 IMPORT_C TInt NoteOff(TInt aChannel,TInt aNote,TInt aVelocity); |
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135 IMPORT_C TInt PlaybackRate(TInt& aPlayBackRate) const; |
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136 IMPORT_C TInt SetPlaybackRate(TInt aPlayBackRate); |
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137 IMPORT_C TInt MaxPlaybackRate(TInt& aMaxRate) const; |
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138 IMPORT_C TInt MinPlaybackRate(TInt& aMinRate) const; |
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139 IMPORT_C TInt TempoMicroBeatsPerMinute(TInt& aMicroBeatsPerMinute) const; |
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140 IMPORT_C TInt SetTempo(TInt aMicroBeatsPerMinute); |
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141 IMPORT_C TInt PitchTranspositionCents(TInt& aPitch) const; |
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142 IMPORT_C TInt SetPitchTransposition(TInt aCents, TInt& aCentsApplied); |
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143 IMPORT_C TInt DurationMicroBeats(TInt64& aDuration) const; |
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144 IMPORT_C TInt NumTracks(TInt& aTracks) const; |
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145 IMPORT_C TInt SetTrackMute(TInt aTrack, TBool aMuted) const; |
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146 IMPORT_C TInt MimeType(TDes8& aMimeType) const; |
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147 IMPORT_C TInt SetSyncUpdateCallbackInterval(const TTimeIntervalMicroSeconds& aMicroSeconds,TInt64 aMicroBeats=0); |
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148 IMPORT_C TInt SendMessage(const TDesC8& aMidiMessage, TInt& aBytes); |
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149 IMPORT_C TInt SendMessage(const TDesC8& aMidiMessage,const TTimeIntervalMicroSeconds& aTime, TInt& aBytes); |
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150 IMPORT_C TInt SendMipMessage(const RArray<TMipMessageEntry>& aEntry); |
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151 IMPORT_C TInt NumberOfBanks(TBool aCustom, TInt& aNumBanks) const; |
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152 IMPORT_C TInt GetBankId(TBool aCustom, TInt aBankIndex, TInt& aBankId) const; |
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153 IMPORT_C TInt LoadCustomBank(const TDesC& aFileName,TInt& aBankId); |
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154 IMPORT_C TInt LoadCustomBankData(const TDesC8& aBankData,TInt& aBankId); |
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155 IMPORT_C TInt UnloadCustomBank(TInt aBankId); |
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156 IMPORT_C TInt CustomBankLoaded(TInt aBankId, TBool& aBankLoaded) const; |
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157 IMPORT_C TInt UnloadAllCustomBanks(); |
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158 IMPORT_C TInt NumberOfInstruments(TInt aBankId, TBool aCustom, TInt& aNumInstruments) const; |
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159 IMPORT_C TInt GetInstrumentId(TInt aBankId,TBool aCustom,TInt aInstrumentIndex, TInt& aInstrumentId) const; |
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160 IMPORT_C HBufC* InstrumentNameL(TInt aBankId, TBool aCustom, TInt aInstrumentId) const; |
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161 IMPORT_C TInt SetInstrument(TInt aChannel,TInt aBankId,TInt aInstrumentId); |
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162 IMPORT_C TInt LoadCustomInstrument(const TDesC& aFileName, TInt aFileBankId, TInt aFileInstrumentId, TInt aMemoryBankId, TInt aMemoryInstrumentId); |
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163 IMPORT_C TInt LoadCustomInstrumentData(const TDesC8& aInstrumentData, TInt aBankDataId, TInt aInstrumentDataId, TInt aMemoryBankId, TInt aMemoryInstrumentId); |
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164 IMPORT_C TInt UnloadCustomInstrument(TInt aCustomBankId,TInt aInstrumentId); |
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165 IMPORT_C HBufC* PercussionKeyNameL(TInt aNote, TInt aBankId, TBool aCustom, TInt aInstrumentId) const; |
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166 IMPORT_C TInt StopTime(TTimeIntervalMicroSeconds& aStopTime) const; |
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167 IMPORT_C TInt SetStopTime(const TTimeIntervalMicroSeconds& aStopTime) const; |
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168 IMPORT_C TInt Polyphony(TInt& aNumNotes) const; |
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169 IMPORT_C TInt ChannelsSupported(TInt& aChannels) const; |
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170 IMPORT_C TInt ChannelVolume(TInt aChannel, TReal32& aChannelVol) const; |
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171 IMPORT_C TInt MaxChannelVolume(TReal32& aMaxVol) const; |
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172 IMPORT_C TInt SetChannelVolume(TInt aChannel,TReal32 aVolume); |
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173 IMPORT_C TInt SetChannelMute(TInt aChannel,TBool aMuted); |
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174 IMPORT_C TInt Volume(TInt& aVolume) const; |
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175 IMPORT_C TInt MaxVolume(TInt& aMaxVolume) const; |
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176 IMPORT_C TInt SetVolume(TInt aVolume); |
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177 IMPORT_C TInt SetVolumeRamp(const TTimeIntervalMicroSeconds& aRampDuration); |
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178 IMPORT_C TInt GetBalance(TInt& aBalance) const; |
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179 IMPORT_C TInt SetBalance(TInt aBalance); |
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180 IMPORT_C TInt SetMaxPolyphony(TInt aMaxNotes); |
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181 IMPORT_C TInt GetRepeats(TInt& aNumRepeats) const; |
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182 IMPORT_C TInt SetRepeats(TInt aRepeatNumberOfTimes, const TTimeIntervalMicroSeconds& aTrailingSilence); |
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183 IMPORT_C TInt SetBank(TBool aCustom); |
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184 IMPORT_C TInt IsTrackMute(TInt aTrack, TBool& aTrackMute) const; |
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185 IMPORT_C TInt IsChannelMute(TInt aChannel, TBool& aChannelMute) const; |
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186 IMPORT_C TInt GetInstrument(TInt aChannel, TInt& aInstrumentId, TInt& aBankId); |
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187 IMPORT_C TInt Close(); |
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188 IMPORT_C TInt Stop(const TTimeIntervalMicroSeconds& aFadeOutDuration); |
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189 IMPORT_C void ReceiveEvents(TPckgBuf<TInt>& aEventSize, TRequestStatus& aStatus); |
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190 IMPORT_C TInt RetrieveEvent(TDes8& aMidiEventPckg); |
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191 IMPORT_C TInt CancelReceiveEvents(); |
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192 IMPORT_C TInt MaxPolyphony(TInt& aNumNotes) const; |
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193 }; |
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194 |
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195 |
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196 /** |
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197 Mixin class to be derived from by controller plugins wishing |
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198 to support the MIDI controller custom commands. |
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199 |
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200 @publishedAll |
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201 @released |
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202 */ |
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203 class MMidiCustomCommandImplementor |
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204 { |
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205 public: |
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206 /** |
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207 Change the position of the currently playing MIDI resource to the given position. |
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208 May be called whenever a MIDI resource is open. |
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209 |
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210 @param aMicroBeats |
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211 Metrical position to move to. Clamped to (0, DurationMicroBeats()). |
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212 */ |
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213 virtual void MmcSetPositionMicroBeatsL(TInt64 aMicroBeats) = 0; |
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214 /** |
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215 Gets the current metrical position of the MIDI resource being played |
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216 |
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217 @param aMicroBeats |
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218 (BPM*1000000) relative to the start of the resource |
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219 */ |
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220 virtual void MmcPositionMicroBeatsL(TInt64& aMicroBeats) = 0; |
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221 /** |
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222 Synchronous function to play a single note. |
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223 Multiple calls to this function will be accommodated as far as the MIDI engine can |
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224 manage. The same functionality could be implemented using the SendMessage function |
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225 |
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226 @param aChannel |
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227 Logical channel to play note on. 0 <= aChannel <= 15. |
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228 @param aNote |
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229 Note to play. 0 <= aNote <= 127 |
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230 @param aDuration |
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231 Length of time to play note for. |
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232 @param aNoteOnVelocity |
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233 Velocity with which to start the note. 0 <= aNoteOnVelocity <= 127. |
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234 @param aNoteOffVelocity |
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235 Velocity with which to stop the note. 0 <= aNoteOffVelocity <= 127. |
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236 */ |
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237 virtual void MmcPlayNoteL(TInt aChannel,TInt aNote,const TTimeIntervalMicroSeconds& aDuration,TInt aNoteOnVelocity,TInt aNoteOffVelocity) = 0; |
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238 /** |
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239 Synchronous function to play a single note at a specified time. |
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240 Multiple calls to this function will be accommodated as far as the MIDI engine can |
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241 manage. The same functionality could be implemented using the SendMessage function |
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242 |
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243 @param aChannel |
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244 Logical channel to play note on. 0 <= aChannel <= 15. |
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245 @param aNote |
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246 Note to play. 0 <= aNote <= 127 |
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247 @param aStartTime |
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248 Specifies the time at which to start playing the note, relative to the MIDI |
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249 resource playing time or the time elapsed since Play() was called if no resource is present. |
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250 @param aDuration |
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251 Length of time to play note for. |
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252 @param aNoteOnVelocity |
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253 Velocity with which to start the note. 0 <= aNoteOnVelocity <= 127. |
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254 @param aNoteOffVelocity |
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255 Velocity with which to stop the note. 0 <= aNoteOffVelocity <= 127. |
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256 */ |
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257 virtual void MmcPlayNoteL(TInt aChannel,TInt aNote,const TTimeIntervalMicroSeconds& aStartTime, const TTimeIntervalMicroSeconds& aDuration,TInt aNoteOnVelocity,TInt aNoteOffVelocity) = 0; |
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258 /** |
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259 Stops the playback of all notes on the given channel, |
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260 by means of an All Notes Off MIDI message |
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261 |
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262 @param aChannel |
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263 Logical channel to stop notes on. 0 <= aChannel <= 15 |
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264 */ |
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265 virtual void MmcStopNotesL(TInt aChannel) = 0; |
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266 /** |
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267 Synchronous function to commence playback of a note. |
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268 Multiple calls to this function will be accommodated as far as the MIDI engine can manage |
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269 |
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270 @param aChannel |
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271 Logical channel to play note on. 0 <= aChannel <= 15. |
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272 @param aNote |
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273 Note to play. 0 <= aNote <= 127. |
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274 @param aVelocity |
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275 Velocity with which to start the note. The legal integer range |
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276 is 0 <= aVelocity <= 127, but the value zero actually causes the |
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277 message to be interpreted as a Note Off message instead of a Note On. |
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278 */ |
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279 virtual void MmcNoteOnL(TInt aChannel,TInt aNote,TInt aVelocity) = 0; |
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280 /** |
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281 Synchronous function to terminate playback of a note. |
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282 If no corresponding note is found then no error is raised |
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283 |
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284 @param aChannel |
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285 Logical channel on which the note is playing. 0 <= aChannel <= 15. |
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286 @param aNote |
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287 Note to terminate. 0 <= aNote <= 127. |
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288 @param aVelocity |
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289 Velocity with which to stop the note. 0 <= aVelocity <= 127. |
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290 There is no standard behaviour corresponding with note off velocity. |
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291 */ |
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292 virtual void MmcNoteOffL(TInt aChannel,TInt aNote,TInt aVelocity) = 0; |
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293 /** |
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294 Gets the current playback rate factor of the currently open MIDI resource. |
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295 The playback rate is independent from tempo, |
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296 i.e., it can be used to give an overall speed factor for playback. |
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297 |
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298 @param aPlayBackRate |
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299 Current playback rate in percent times 1000, i.e., 100000 means original |
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300 playback speed, 200000 means double speed, and 50000 means half speed playback. |
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301 */ |
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302 virtual void MmcPlaybackRateL(TInt& aPlayBackRate) = 0; |
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303 /** |
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304 Sets the playback rate for the playback of the current MIDI resource. |
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305 The playback rate is independent from tempo, |
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306 i.e., it can be used to give an overall speed factor for playback. |
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307 May be called whether playback is in progress or not. |
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308 |
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309 @param aPlayBackRate |
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310 Playback rate in percent times 1000, i.e., 100000 means original playback speed, |
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311 200000 means double speed, and 50000 means half speed playback. |
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312 */ |
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313 virtual void MmcSetPlaybackRateL(TInt aPlayBackRate) = 0; |
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314 /** |
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315 Gets the maximum playback rate in milli-percentage from the MIDI engine. |
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316 @see SetPlaybackRate() for milli-percentage details. |
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317 |
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318 @param aMaxRate |
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319 Playback rate supported by MIDI player. |
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320 */ |
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321 virtual void MmcMaxPlaybackRateL(TInt& aMaxRate) = 0; |
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322 /** |
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323 Gets the minimum playback rate in milli-percentage from the MIDI engine. |
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324 @see SetPlaybackRate() for milli-percentage details. |
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325 |
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326 @param aMinRate |
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327 Minimum playback rate supported by MIDI player. |
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328 */ |
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329 virtual void MmcMinPlaybackRateL(TInt& aMinRate) = 0; |
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330 /** |
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331 Gets the current tempo of the currently open MIDI resource. The tempo is independent |
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332 from the playback rate, i.e., the resulting playback speed will be affected by both. |
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333 |
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334 @param aMicroBeatsPerMinute |
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335 Tempo at the current position of the currently open resource in microbeats |
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336 per minute, i.e. BPM * 1000000. Filled in by the controller framework. |
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337 */ |
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338 virtual void MmcTempoMicroBeatsPerMinuteL(TInt& aMicroBeatsPerMinute) = 0; |
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339 /** |
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340 Sets the tempo at which the current MIDI resource should be played. |
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341 May be called whether playback is in progress or not. The tempo is |
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342 independent from the playback rate, i.e., the resulting playback speed |
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343 will be affected by both. |
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344 |
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345 @param aMicroBeatsPerMinute |
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346 Tempo in microbeats per minute (BPM*1000000) to set. |
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347 */ |
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348 virtual void MmcSetTempoL(TInt aMicroBeatsPerMinute) = 0; |
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349 /** |
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350 Gets the pitch shift in use for the currently open MIDI resource. |
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351 |
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352 @param aPitch |
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353 Shift in cents, i.e. semitones * 100. One octave equals 1200 cents. |
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354 @return One of the system-wide error codes. |
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355 */ |
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356 virtual void MmcPitchTranspositionCentsL(TInt& aPitch) = 0; |
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357 /** |
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358 Sets the pitch shift to apply to the currently open MIDI resource. |
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359 May be called during playback. |
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360 |
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361 @param aCents |
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362 Pitch shift in cents, i.e. semitones * 100. One octave equals 1200 cents. |
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363 @param aCentsApplied |
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364 Actual pitch shift applied - may differ from the requested value due |
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365 to limitations of the MIDI engine. |
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366 */ |
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367 virtual void MmcSetPitchTranspositionL(TInt aCents, TInt& aCentsApplied) = 0; |
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368 /** |
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369 Gets the length of the currently open MIDI resource in micro-beats |
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370 |
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371 @param aDuration |
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372 Duration in microbeats (beats * 1000000). |
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373 */ |
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374 virtual void MmcDurationMicroBeatsL(TInt64& aDuration) = 0; |
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375 /** |
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376 Gets the number of tracks present in the currently open MIDI resource. |
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377 |
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378 @param aTracks |
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379 Number of tracks. |
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380 */ |
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381 virtual void MmcNumTracksL(TInt& aTracks) = 0; |
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382 /** |
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383 Mutes or unmutes a particular track. |
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384 |
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385 @param aTrack |
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386 Index of the track to mute - 0 <= aTrack < NumTracks(). |
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387 @param aMuted |
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388 ETrue to mute the track, EFalse to unmute it. |
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389 */ |
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390 virtual void MmcSetTrackMuteL(TInt aTrack, TBool aMuted) = 0; |
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391 /** |
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392 Gets the MIME type of the MIDI resource currently open. |
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393 |
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394 @param aMimeType |
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395 Descriptor containing the MIDI mime type. |
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396 */ |
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397 virtual void MmcMimeTypeL(TDes8& aMimeType) = 0; |
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398 /** |
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399 Sets the frequency at which MMIDIClientUtilityObserver::MmcuoSyncUpdateL() is called |
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400 to allow other components to synchronise with playback of this MIDI resource. |
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401 |
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402 @param aMicroSeconds |
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403 Temporal interval to callback at. Used in preference to aMicroBeats if both are set. |
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404 @param aMicroBeats |
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405 Metrical interval to callback at. Set both parameters to zero to cancel. |
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406 */ |
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407 virtual void MmcSetSyncUpdateCallbackIntervalL(const TTimeIntervalMicroSeconds& aMicroSeconds,TInt64 aMicroBeats=0) = 0; |
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408 /** |
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409 Sends a single MIDI message to the MIDI engine. |
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410 |
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411 @param aMidiMessage |
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412 Descriptor containing the MIDI message data. If there are several |
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413 MIDI messages in the buffer, only the first one is processed. |
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414 @param aBytes |
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415 Number of bytes of the message buffer actually processed. |
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416 */ |
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417 virtual void MmcSendMessageL(const TDesC8& aMidiMessage, TInt& aBytes) = 0; |
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418 /** |
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419 Sends a single MIDI message, with time stamp, to the MIDI engine. |
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420 |
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421 @param aMidiMessage |
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422 Descriptor containing the MIDI message data. If there are several |
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423 MIDI messages in the buffer, only the first one is processed. |
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424 @param aTime |
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425 The time at which to execute the message, relative to the MIDI resource playing |
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426 time or the time elapsed since Play() was called if no resource is present. |
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427 @param aBytes |
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428 Number of bytes of the message buffer actually processed. |
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429 */ |
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430 virtual void MmcSendMessageL(const TDesC8& aMidiMessage,const TTimeIntervalMicroSeconds& aTime, TInt& aBytes) = 0; |
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431 /** |
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432 Sends a mip message to the MIDI engine. This is a convenience function, |
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433 because the same functionality could be achieved with the SendMessage() function. |
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434 |
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435 @param aEntry |
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436 Array of logical {channel, MIP} value pairs to send, highest priority first. |
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437 */ |
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438 virtual void MmcSendMipMessageL(const TArray<TMipMessageEntry>& aEntry) = 0; |
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439 /** |
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440 Gets the number of standard or custom sound banks currently available. |
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441 |
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442 @param aCustom |
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443 Specifies whether to reference a custom or standard sound bank. |
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444 @param aNumBanks |
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445 Number of custom or standard sound banks available. |
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446 */ |
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447 virtual void MmcNumberOfBanksL(TBool aCustom, TInt& aNumBanks) = 0; |
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448 /** |
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449 Gets the identifier of a sound bank. Bank identifier (aka bank number) is a |
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450 14-bit value consisting of MIDI bank MSB and LSB values. |
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451 |
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452 @param aCustom |
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453 Specifies whether to reference a custom or standard sound bank. |
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454 @param aBankIndex |
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455 Index of sound bank where 0 <= aBankIndex < NumberOfBanks(). |
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456 @param aBankId |
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457 Identifier of the specified bank occupying, at most, 14 bits. |
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458 */ |
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459 virtual void MmcGetBankIdL(TBool aCustom, TInt aBankIndex, TInt& aBankId) = 0; |
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460 /** |
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461 Loads one or more custom sound banks from a file into memory for use. |
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462 If several banks are loaded with consequent LoadCustomBanksL() function calls, |
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463 the banks are combined if the bank sets have conflicting bank numbers. |
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464 |
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465 @param aFileName |
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466 Name of the file containing the custom sound bank. |
|
467 @param aBankId |
|
468 Identifier of the custom sound bank loaded, occupying no more than 14 bits. |
|
469 */ |
|
470 virtual void MmcLoadCustomBankL(const TDesC& aFileName,TInt& aBankId) = 0; |
|
471 /** |
|
472 Loads one or more custom sound banks from a descriptor into memory for use. |
|
473 If several banks are loaded with consequent LoadCustomBanksL() function calls, |
|
474 the banks are combined if the bank sets have conflicting bank numbers. |
|
475 |
|
476 @param aBankData |
|
477 Descriptor containing the custom sound bank. |
|
478 @param aBankId |
|
479 Identifier of the custom sound bank loaded, occupying no more than 14 bits. |
|
480 */ |
|
481 virtual void MmcLoadCustomBankDataL(const TDesC8& aBankData,TInt& aBankId) = 0; |
|
482 /** |
|
483 Removes a custom sound bank from memory. Only valid for sound banks previously |
|
484 loaded from file. Once unloaded the custom sound bank is no longer available for use. |
|
485 |
|
486 @param aBankId |
|
487 Identifier of the custom sound bank to unload,occupying no more than 14 bits. |
|
488 */ |
|
489 virtual void MmcUnloadCustomBankL(TInt aBankId) = 0; |
|
490 /** |
|
491 Query if a bank has been loaded to the memory. |
|
492 |
|
493 @param aBankId |
|
494 Identifier of the custom sound bank to check if it's in memory or not. |
|
495 @param aBankLoaded |
|
496 ETrue if the specified bank is in memory, EFalse otherwise. |
|
497 */ |
|
498 virtual void MmcCustomBankLoadedL(TInt aBankId, TBool& aBankLoaded) = 0; |
|
499 /** |
|
500 Removes all custom sound banks from memory. |
|
501 */ |
|
502 virtual void MmcUnloadAllCustomBanksL() = 0; |
|
503 /** |
|
504 Gets the number of instruments available in a given sound bank. |
|
505 |
|
506 @param aBankId |
|
507 Identifier of sound bank to reference, occupying no more than 14 bits. |
|
508 @param aCustom |
|
509 Specifies whether to reference a custom or standard sound bank. |
|
510 @param aNumInstruments |
|
511 Count of the number of instruments available for the specified sound bank. |
|
512 */ |
|
513 virtual void MmcNumberOfInstrumentsL(TInt aBankId, TBool aCustom, TInt& aNumInstruments) = 0; |
|
514 /** |
|
515 Gets the identifier of an instrument. |
|
516 |
|
517 @param aBankId |
|
518 Identifier of the sound bank to reference, occupying no more than 14 bits. |
|
519 @param aCustom |
|
520 Specifies whether to reference a custom or standard sound bank. |
|
521 @param aInstrumentIndex |
|
522 Index of the instrument to reference where 0 <= aInstrumentIndex < NumberOfInstrumentsL(). |
|
523 @param aInstrumentId |
|
524 Identifier of specified instrument. This may differ from the index since the |
|
525 index simply enumerates the instruments, whereas identifiers may not be |
|
526 contiguous, especially where certain instruments correspond to General MIDI-defined |
|
527 instruments but not all instruments are present. Instrument identifiers are |
|
528 between 0 and 127 inclusive. |
|
529 */ |
|
530 virtual void MmcGetInstrumentIdL(TInt aBankId,TBool aCustom,TInt aInstrumentIndex, TInt& aInstrumentId) = 0; |
|
531 /** |
|
532 Gets the name of the given instrument. |
|
533 |
|
534 @param aBankId |
|
535 Identifier of the bank that the instrument belongs to, occupying no more than 14 bits. |
|
536 @param aCustom |
|
537 Specifies whether to reference a custom or standard sound bank. |
|
538 @param aInstrumentId |
|
539 Identifier of the instrument under scrutiny. 0 <= aInstrumentId <= 127. |
|
540 @return Buffer containing the name of the specified instrument. |
|
541 If it has no name then an empty descriptor is returned. |
|
542 */ |
|
543 virtual const TDesC& MmcInstrumentNameL(TInt aBankId, TBool aCustom, TInt aInstrumentId) = 0; |
|
544 /** |
|
545 Sets a logical channel to use the given instrument. |
|
546 |
|
547 @param aChannel |
|
548 Logical channel to set the instrument for. 0 <= aChannel <= 15. |
|
549 @param aBankId |
|
550 Identifier of the bank that the instrument belongs to, occupying no more than 14 bits. |
|
551 The bank ID is a concatenation of MIDI bank MSB and LSB values. |
|
552 @param aInstrumentId |
|
553 Identifier of the instrument under scrutiny. 0 <= aInstrumentId <= 127. |
|
554 */ |
|
555 virtual void MmcSetInstrumentL(TInt aChannel,TInt aBankId,TInt aInstrumentId) = 0; |
|
556 /** |
|
557 Loads an individual instrument from file into custom sound bank memory for use. |
|
558 The bank and instrument ids given in the file can be mapped into different bank |
|
559 and instrument ids in memory. |
|
560 |
|
561 @param aFileName |
|
562 Name of the file containing the instrument. |
|
563 @param aFileBankId |
|
564 Identifier of the bank in the file from which to load the instrument, |
|
565 occupying no more than 14 bits. |
|
566 @param aFileInstrumentId |
|
567 Identifier of the instrument to load. 0 <= aInstrumentId <= 127. |
|
568 @param aMemoryBankId |
|
569 Identifier of the custom bank in memory to load the instrument into, |
|
570 occupying no more than 14 bits. |
|
571 @param aMemoryInstrumentId |
|
572 Identifier of the instrument in memory to load the new instrument into. |
|
573 0 <= aInstrumentId <= 127. |
|
574 */ |
|
575 virtual void MmcLoadCustomInstrumentL(const TDesC& aFileName, TInt aFileBankId, TInt aFileInstrumentId, TInt aMemoryBankId, TInt aMemoryInstrumentId) = 0; |
|
576 /** |
|
577 Loads an individual instrument from descriptor into custom sound bank memory for use. |
|
578 The bank and instrument ids given in the descriptor can be mapped into different bank |
|
579 and instrument ids in memory. |
|
580 |
|
581 @param aInstrumentData |
|
582 Descriptor containing the instrument. |
|
583 @param aBankDataId |
|
584 Identifier of the bank in the descriptor from which to load the instrument, |
|
585 occupying no more than 14 bits. |
|
586 @param aInstrumentDataId |
|
587 Identifier of the instrument to load. 0 <= aInstrumentId <= 127. |
|
588 @param aMemoryBankId |
|
589 Identifier of the custom bank in memory to load the instrument into, |
|
590 occupying no more than 14 bits. |
|
591 @param aMemoryInstrumentId |
|
592 Identifier of the instrument in memory to load the new instrument into. |
|
593 0 <= aInstrumentId <= 127. |
|
594 */ |
|
595 virtual void MmcLoadCustomInstrumentDataL(const TDesC8& aInstrumentData, TInt aBankDataId, TInt aInstrumentDataId, TInt aMemoryBankId, TInt aMemoryInstrumentId) = 0; |
|
596 /** |
|
597 Removes an instrument from custom sound bank memory. |
|
598 Only valid for instruments previously loaded from file. |
|
599 Once unloaded the instrument is no longer available for use. |
|
600 |
|
601 @param aCustomBankId |
|
602 Identifier of the custom sound bank containing the instrument |
|
603 to unload, occupying no more than 14 bits. |
|
604 @param aInstrumentId |
|
605 Identifier of the instrument to unload. 0 <= aInstrumentId <= 127. |
|
606 */ |
|
607 virtual void MmcUnloadCustomInstrumentL(TInt aCustomBankId,TInt aInstrumentId) = 0; |
|
608 /** |
|
609 Gets the name of a particular percussion key corresponding to a given note. |
|
610 |
|
611 @param aNote |
|
612 Note to query. 0 <= aNote <= 127. |
|
613 @param aBankId |
|
614 Identifier of the bank that the instrument belongs to, occupying no more than 14 bits. |
|
615 The bank ID is a concatenation of MIDI bank MSB and LSB values. |
|
616 @param aCustom |
|
617 Specifies whether to reference a custom or standard sound bank. |
|
618 @param aInstrumentId |
|
619 Identifier of an instrument. |
|
620 @return Descriptor containing the name of the percussion key. |
|
621 If the key does not have a name then an empty descriptor is returned. |
|
622 */ |
|
623 virtual const TDesC& MmcPercussionKeyNameL(TInt aNote, TInt aBankId, TBool aCustom, TInt aInstrumentId) = 0; |
|
624 /** |
|
625 Get the stop time currently set for the MIDI resource. |
|
626 |
|
627 @param aStopTime |
|
628 Time at which playback will stop, relative to the start of the resource. |
|
629 @return Descriptor containing the name of the percussion key. If the key |
|
630 does not have a name then an empty descriptor is returned. |
|
631 */ |
|
632 virtual void MmcStopTimeL(TTimeIntervalMicroSeconds& aStopTime) = 0; |
|
633 /** |
|
634 Sets the stop time to use for the currently open MIDI resource |
|
635 |
|
636 @param aStopTime |
|
637 Time at which playback will stop, relative to the start of the resource. |
|
638 Clamped to 0 and the duration of the resource. |
|
639 */ |
|
640 virtual void MmcSetStopTimeL(const TTimeIntervalMicroSeconds& aStopTime) = 0; |
|
641 /** |
|
642 Gets the number of currently active voices. |
|
643 |
|
644 @param aNumNotes |
|
645 The number of currently active voices. |
|
646 */ |
|
647 virtual void MmcPolyphonyL(TInt& aNumNotes) = 0; |
|
648 /** |
|
649 Get the maximum number of logical channels supported by the MIDI engine. |
|
650 |
|
651 @param aChannels |
|
652 The maximum number of logical channels that the MIDI engine supports, 0 <= aChannels <=15. |
|
653 */ |
|
654 virtual void MmcChannelsSupportedL(TInt& aChannels) = 0; |
|
655 /** |
|
656 Get the current volume setting of a logical channel. |
|
657 |
|
658 @param aChannel |
|
659 Logical channel to query. 0 <= aChannel <= 15. |
|
660 @param aChannelVol |
|
661 Volume currently set on the specified channel in decibels. |
|
662 */ |
|
663 virtual void MmcChannelVolumeL(TInt aChannel, TReal32& aChannelVol) = 0; |
|
664 /** |
|
665 Gets the Maximum volume setting that may be applied to a logical channel. |
|
666 |
|
667 @param aMaxVol |
|
668 Maximum volume setting. Minimum value is -infinity dB, which is |
|
669 the smallest possible value that TReal32 supports. |
|
670 */ |
|
671 virtual void MmcMaxChannelVolumeL(TReal32& aMaxVol) = 0; |
|
672 /** |
|
673 Set the volume of a channel. |
|
674 |
|
675 @param aChannel |
|
676 Logical channel to set the volume on. 0 <= aChannel <= 15. |
|
677 @param aVolume |
|
678 The channel volume can be set within a range. The minimum channel |
|
679 volume is -infinity dB, which is the smallest possible value that |
|
680 TReal32 supports while the maximum channel volume is set via MaxVolumeL() |
|
681 which represents the volume level in dB corresponding to the MIDI Channel |
|
682 Volume controller. |
|
683 */ |
|
684 virtual void MmcSetChannelVolumeL(TInt aChannel,TReal32 aVolume) = 0; |
|
685 /** |
|
686 Set the muting state of a channel without changing its volume setting. |
|
687 When unmuted the channel goes back to its previous volume setting. |
|
688 |
|
689 @param aChannel |
|
690 Logical channel to set the mute state of. 0 <= aChannel <= 15. |
|
691 @param aMuted |
|
692 ETrue to mute the channel, EFalse to unmute it. |
|
693 */ |
|
694 virtual void MmcSetChannelMuteL(TInt aChannel,TBool aMuted) = 0; |
|
695 /** |
|
696 Gets the overall volume of the MIDI client. |
|
697 |
|
698 @param aVolume |
|
699 The current overall volume setting. |
|
700 */ |
|
701 virtual void MmcVolumeL(TInt& aVolume) = 0; |
|
702 /** |
|
703 Maximum volume setting that may be applied overall. |
|
704 |
|
705 @param aMaxVolume |
|
706 Maximum volume setting. Minimum value is always zero which is silent. |
|
707 */ |
|
708 virtual void MmcMaxVolumeL(TInt& aMaxVolume) = 0; |
|
709 /** |
|
710 Set the overall volume of the MIDI client. |
|
711 This setting scales all channel volumes respectively so the actual volume |
|
712 that a channel is played at becomes (overall volume * channel volume / max volume). |
|
713 |
|
714 @param aVolume Overall volume setting to use. |
|
715 */ |
|
716 virtual void MmcSetVolumeL(TInt aVolume) = 0; |
|
717 /** |
|
718 Length of time over which the volume is faded up from zero to the current settings |
|
719 when playback is started. |
|
720 |
|
721 @param aRampDuration |
|
722 Duration of the ramping period. |
|
723 */ |
|
724 virtual void MmcSetVolumeRampL(const TTimeIntervalMicroSeconds& aRampDuration) = 0; |
|
725 /** |
|
726 Get the current stereo balance value. |
|
727 |
|
728 @param aBalance |
|
729 Balance value ranging from KMMFBalanceMaxLeft to KMMFBalanceMaxRight. |
|
730 */ |
|
731 virtual void MmcGetBalanceL(TInt& aBalance) = 0; |
|
732 /** |
|
733 Set the current stereo balance value. |
|
734 |
|
735 @param aBalance |
|
736 Balance value to set. Defaults to KMMFBalanceCenter to restore equal left-right balance. |
|
737 */ |
|
738 virtual void MmcSetBalanceL(TInt aBalance) = 0; |
|
739 /** |
|
740 Set the max polyphony level the engine can handle. |
|
741 |
|
742 @param aMaxNotes |
|
743 Max polyphony level, 0 <= PolyphonyL() <= aMaxNotes. |
|
744 */ |
|
745 virtual void MmcSetMaxPolyphonyL(TInt aMaxNotes) = 0; |
|
746 /** |
|
747 Gets the number of times the current opened resources have to be repeated. |
|
748 |
|
749 @param aNumRepeats |
|
750 The number of time the current opened resources have to be repeated. |
|
751 */ |
|
752 virtual void MmcGetRepeatsL(TInt& aNumRepeats) = 0; |
|
753 /** |
|
754 Set the number of times to repeat the current MIDI resource. |
|
755 After Stop() has been called, repeat number of times and the trailing silence are reset. |
|
756 |
|
757 @param aRepeatNumberOfTimes |
|
758 Number of times to repeat the resource during playback. This includes the first playing. |
|
759 @param aTrailingSilence |
|
760 Time in microseconds to pause between repeats. |
|
761 */ |
|
762 virtual void MmcSetRepeatsL(TInt aRepeatNumberOfTimes, const TTimeIntervalMicroSeconds& aTrailingSilence) = 0; |
|
763 /** |
|
764 Tell the MIDI engine to use a custom bank or a standard bank. |
|
765 |
|
766 @param aCustom |
|
767 If Etrue the custom bank in memory is used otherwise the standard bank |
|
768 is used leaving the custom bank in memory. |
|
769 */ |
|
770 virtual void MmcSetBankL(TBool aCustom) = 0; |
|
771 /** |
|
772 Gets the muting status of a specific track. |
|
773 |
|
774 @param aTrack |
|
775 The track to query. |
|
776 @param aTrackMute |
|
777 The mute status of the track. |
|
778 */ |
|
779 virtual void MmcIsTrackMuteL(TInt aTrack, TBool& aTrackMute) = 0; |
|
780 /** |
|
781 Gets the muting status of a specific channel. |
|
782 |
|
783 @param aChannel |
|
784 The channel to query. |
|
785 @param aChannelMute |
|
786 The mute status of the channel. |
|
787 */ |
|
788 virtual void MmcIsChannelMuteL(TInt aChannel, TBool& aChannelMute) = 0; |
|
789 /** |
|
790 Gets the instrument assigned to a specified channel. |
|
791 |
|
792 @param aChannel |
|
793 Logical channel, 0 <= aChannel <= 15. |
|
794 @param aInstrumentId |
|
795 Identifier of the instrument assigned to aChannel. 0 <= aInstrumentId <= 127. |
|
796 @param aBankId |
|
797 Identifier of the bank that the instrument belongs to, occupying no more than 14 bits. |
|
798 */ |
|
799 virtual void MmcGetInstrumentL(TInt aChannel, TInt& aInstrumentId, TInt& aBankId) = 0; |
|
800 /** |
|
801 Closes any currently open resources, such as files, descriptors or URLs in use. |
|
802 Does nothing if there is nothing currently open. |
|
803 */ |
|
804 virtual void MmcCloseL() = 0; |
|
805 /** |
|
806 Stops playback of a resource but does not change the current position or release any resources. |
|
807 Pauses the internal timer if no resource is open. |
|
808 |
|
809 @param aFadeOutDuration |
|
810 Length of time over which the volume is faded out from the current settings to zero. |
|
811 */ |
|
812 virtual void MmcStopL(const TTimeIntervalMicroSeconds& aFadeOutDuration) = 0; |
|
813 /** |
|
814 Gets the max polyphony level the engine can handle. |
|
815 |
|
816 @param aNumNotes |
|
817 Max polyphony level, PolyphonyL() <= aMaxNotes. |
|
818 */ |
|
819 virtual void MmcMaxPolyphonyL(TInt& aMaxNotes) = 0; |
|
820 }; |
|
821 |
|
822 |
|
823 /** |
|
824 Mixin class to define an object capable of handling a MIDI event within the controller framework. |
|
825 |
|
826 @publishedAll |
|
827 @released |
|
828 */ |
|
829 class MMidiEventHandler |
|
830 { |
|
831 public: |
|
832 /** |
|
833 Send an event to the client. |
|
834 |
|
835 @param aEvent |
|
836 The MIDI event. |
|
837 @return One of the system-wide error codes. |
|
838 */ |
|
839 virtual TInt SendMidiEventToClient(const CMMFMidiEvent& aEvent) = 0; |
|
840 }; |
|
841 |
|
842 #ifndef SYMBIAN_ENABLE_SPLIT_HEADERS |
|
843 #include <mmf/common/midieventreceiver.h> |
|
844 #endif |
|
845 |
|
846 class CMidiEventReceiver; |
|
847 |
|
848 /** |
|
849 Custom command parser class to be used by controller plugins wishing to support |
|
850 MIDI controller commands. |
|
851 The controller plugin must be derived from MMidiCustomCommandImplementor |
|
852 to use this class. The controller plugin should create an object of this type and add |
|
853 it to the list of custom command parsers in the controller framework. |
|
854 |
|
855 @publishedAll |
|
856 @released |
|
857 */ |
|
858 class CMidiCustomCommandParser : public CMMFCustomCommandParserBase, |
|
859 public MMidiEventHandler |
|
860 { |
|
861 public: |
|
862 IMPORT_C static CMidiCustomCommandParser* NewL(MMidiCustomCommandImplementor& aImplementor); |
|
863 IMPORT_C ~CMidiCustomCommandParser(); |
|
864 /** |
|
865 @internalTechnology |
|
866 */ |
|
867 void HandleRequest(TMMFMessage& aMessage); |
|
868 virtual TInt SendMidiEventToClient(const CMMFMidiEvent& aEvent); |
|
869 private: |
|
870 CMidiCustomCommandParser(MMidiCustomCommandImplementor& aImplementor); |
|
871 // Internal request handling methods. |
|
872 void DoHandleRequestL(TMMFMessage& aMessage); |
|
873 |
|
874 TBool DoSetPositionMicroBeatsL(TMMFMessage& aMessage); |
|
875 TBool DoPositionMicroBeatsL(TMMFMessage& aMessage); |
|
876 TBool DoPlayNoteL(TMMFMessage& aMessage); |
|
877 TBool DoPlayNoteWithStartTimeL(TMMFMessage& aMessage); |
|
878 TBool DoStopNotesL(TMMFMessage& aMessage); |
|
879 TBool DoNoteOnL(TMMFMessage& aMessage); |
|
880 TBool DoNoteOffL(TMMFMessage& aMessage); |
|
881 TBool DoPlaybackRateL(TMMFMessage& aMessage); |
|
882 TBool DoSetPlaybackRateL(TMMFMessage& aMessage); |
|
883 TBool DoMaxPlaybackRateL(TMMFMessage& aMessage); |
|
884 TBool DoMinPlaybackRateL(TMMFMessage& aMessage); |
|
885 TBool DoTempoMicroBeatsPerMinuteL(TMMFMessage& aMessage); |
|
886 TBool DoSetTempoL(TMMFMessage& aMessage); |
|
887 TBool DoPitchTranspositionCentsL(TMMFMessage& aMessage); |
|
888 TBool DoSetPitchTranspositionL(TMMFMessage& aMessage); |
|
889 TBool DoDurationMicroBeatsL(TMMFMessage& aMessage); |
|
890 TBool DoNumTracksL(TMMFMessage& aMessage); |
|
891 TBool DoSetTrackMuteL(TMMFMessage& aMessage); |
|
892 TBool DoMimeTypeL(TMMFMessage& aMessage); |
|
893 TBool DoSetSyncUpdateCallbackIntervalL(TMMFMessage& aMessage); |
|
894 TBool DoSendMessageL(TMMFMessage& aMessage); |
|
895 TBool DoSendMessageWithTimeStampL(TMMFMessage& aMessage); |
|
896 TBool DoSendMipMessageL(TMMFMessage& aMessage); |
|
897 TBool DoNumberOfBanksL(TMMFMessage& aMessage); |
|
898 TBool DoGetBankIdL(TMMFMessage& aMessage); |
|
899 TBool DoLoadCustomBankL(TMMFMessage& aMessage); |
|
900 TBool DoLoadCustomBankDataL(TMMFMessage& aMessage); |
|
901 TBool DoUnloadCustomBankL(TMMFMessage& aMessage); |
|
902 TBool DoCustomBankLoadedL(TMMFMessage& aMessage); |
|
903 TBool DoUnloadAllCustomBanksL(TMMFMessage& aMessage); |
|
904 TBool DoNumberOfInstrumentsL(TMMFMessage& aMessage); |
|
905 TBool DoGetInstrumentIdL(TMMFMessage& aMessage); |
|
906 TBool DoInstrumentNameL(TMMFMessage& aMessage); |
|
907 TBool DoCopyInstrumentNameL(TMMFMessage& aMessage); |
|
908 TBool DoSetInstrumentL(TMMFMessage& aMessage); |
|
909 TBool DoLoadCustomInstrumentL(TMMFMessage& aMessage); |
|
910 TBool DoLoadCustomInstrumentDataL(TMMFMessage& aMessage); |
|
911 TBool DoUnloadCustomInstrumentL(TMMFMessage& aMessage); |
|
912 TBool DoPercussionKeyNameL(TMMFMessage& aMessage); |
|
913 TBool DoCopyPercussionKeyNameL(TMMFMessage& aMessage); |
|
914 TBool DoStopTimeL(TMMFMessage& aMessage); |
|
915 TBool DoSetStopTimeL(TMMFMessage& aMessage); |
|
916 TBool DoPolyphonyL(TMMFMessage& aMessage); |
|
917 TBool DoChannelsSupportedL(TMMFMessage& aMessage); |
|
918 TBool DoChannelVolumeL(TMMFMessage& aMessage); |
|
919 TBool DoMaxChannelVolumeL(TMMFMessage& aMessage); |
|
920 TBool DoSetChannelVolumeL(TMMFMessage& aMessage); |
|
921 TBool DoSetChannelMuteL(TMMFMessage& aMessage); |
|
922 TBool DoVolumeL(TMMFMessage& aMessage); |
|
923 TBool DoMaxVolumeL(TMMFMessage& aMessage); |
|
924 TBool DoSetVolumeL(TMMFMessage& aMessage); |
|
925 TBool DoSetVolumeRampL(TMMFMessage& aMessage); |
|
926 TBool DoGetBalanceL(TMMFMessage& aMessage); |
|
927 TBool DoSetBalanceL(TMMFMessage& aMessage); |
|
928 TBool DoSetMaxPolyphonyL(TMMFMessage& aMessage); |
|
929 TBool DoGetRepeatsL(TMMFMessage& aMessage); |
|
930 TBool DoSetRepeatsL(TMMFMessage& aMessage); |
|
931 TBool DoSetBankL(TMMFMessage& aMessage); |
|
932 TBool DoIsTrackMuteL(TMMFMessage& aMessage); |
|
933 TBool DoIsChannelMuteL(TMMFMessage& aMessage); |
|
934 TBool DoGetInstrumentL(TMMFMessage& aMessage); |
|
935 TBool DoCloseL(TMMFMessage& aMessage); |
|
936 TBool DoStopL(TMMFMessage& aMessage); |
|
937 TBool DoReceiveEventsL(TMMFMessage& aMessage); |
|
938 TBool DoRetrieveEventL(TMMFMessage& aMessage); |
|
939 TBool DoCancelReceiveEventsL(TMMFMessage& aMessage); |
|
940 |
|
941 void DoCreateBufFromUintArrayL(RArray<TUint>& aArray); |
|
942 void DoCreateBufFromFourCCArrayL(RArray<TFourCC>& aArray); |
|
943 TBool DoMaxPolyphonyL(TMMFMessage& aMessage); |
|
944 private: |
|
945 /** The object that implements the MIDI controller interface */ |
|
946 MMidiCustomCommandImplementor& iImplementor; |
|
947 |
|
948 CMidiEventReceiver* iMidiEventReceiver; |
|
949 /** The events waiting to be sent to the client.*/ |
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950 RPointerArray<CMMFMidiEvent> iMidiEvents; |
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951 |
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952 // variable length data waiting to be copied back to the client |
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953 CBufFlat* iInstrumentName; |
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954 CBufFlat* iPercussionKeyName; |
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955 }; |
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956 |
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957 #endif |