diff options
author | tobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c> | 2008-06-08 15:33:48 +0000 |
---|---|---|
committer | tobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c> | 2008-06-08 15:33:48 +0000 |
commit | 46bb010ca7c5eb04551c030105f9999ca80e472f (patch) | |
tree | 3cb6a6bdd7e4e62623c6a83b5d22c1c0dfad73e8 /Game/Code/lib/midi/DELPHMCB.PAS | |
parent | f4425b4558b7fd86de874035f81ea290c987e96d (diff) | |
download | usdx-46bb010ca7c5eb04551c030105f9999ca80e472f.tar.gz usdx-46bb010ca7c5eb04551c030105f9999ca80e472f.tar.xz usdx-46bb010ca7c5eb04551c030105f9999ca80e472f.zip |
- set svn:eol-style to native
- removed some svn:executable properties from non-executable files
git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/trunk@1144 b956fd51-792f-4845-bead-9b4dfca2ff2c
Diffstat (limited to 'Game/Code/lib/midi/DELPHMCB.PAS')
-rw-r--r-- | Game/Code/lib/midi/DELPHMCB.PAS | 276 |
1 files changed, 138 insertions, 138 deletions
diff --git a/Game/Code/lib/midi/DELPHMCB.PAS b/Game/Code/lib/midi/DELPHMCB.PAS index 5d4ad75a..f7ceaa5e 100644 --- a/Game/Code/lib/midi/DELPHMCB.PAS +++ b/Game/Code/lib/midi/DELPHMCB.PAS @@ -1,138 +1,138 @@ -{ $Header: /MidiComp/DELPHMCB.PAS 2 10/06/97 7:33 Davec $ }
-
-{MIDI callback for Delphi, was DLL for Delphi 1}
-
-unit Delphmcb;
-
-{ These segment options required for the MIDI callback functions }
-{$C PRELOAD FIXED PERMANENT}
-
-interface
-
-{$IFDEF FPC}
- {$MODE Delphi}
- {$H+} // use AnsiString
-{$ENDIF}
-
-uses
- Windows,
- MMsystem,
- Circbuf,
- MidiDefs,
- MidiCons;
-
-procedure midiHandler(
- hMidiIn: HMidiIn;
- wMsg: UINT;
- dwInstance: DWORD;
- dwParam1: DWORD;
- dwParam2: DWORD); stdcall; export;
-function CircbufPutEvent(PBuffer: PCircularBuffer; PTheEvent: PMidiBufferItem): Boolean; stdcall; export;
-
-implementation
-
-{ Add an event to the circular input buffer. }
-function CircbufPutEvent(PBuffer: PCircularBuffer; PTheEvent: PMidiBufferItem): Boolean; stdcall;
-begin
- If (PBuffer^.EventCount < PBuffer^.Capacity) Then
- begin
- Inc(Pbuffer^.EventCount);
-
- { Todo: better way of copying this record }
- with PBuffer^.PNextput^ do
- begin
- Timestamp := PTheEvent^.Timestamp;
- Data := PTheEvent^.Data;
- Sysex := PTheEvent^.Sysex;
- end;
-
- { Move to next put location, with wrap }
- Inc(Pbuffer^.PNextPut);
- If (PBuffer^.PNextPut = PBuffer^.PEnd) then
- PBuffer^.PNextPut := PBuffer^.PStart;
-
- CircbufPutEvent := True;
- end
- else
- CircbufPutEvent := False;
-end;
-
-{ This is the callback function specified when the MIDI device was opened
- by midiInOpen. It's called at interrupt time when MIDI input is seen
- by the MIDI device driver(s). See the docs for midiInOpen for restrictions
- on the Windows functions that can be called in this interrupt. }
-procedure midiHandler(
- hMidiIn: HMidiIn;
- wMsg: UINT;
- dwInstance: DWORD;
- dwParam1: DWORD;
- dwParam2: DWORD); stdcall;
-var
- thisEvent: TMidiBufferItem;
- thisCtlInfo: PMidiCtlInfo;
- thisBuffer: PCircularBuffer;
-Begin
- case wMsg of
-
- mim_Open: {nothing};
-
- mim_Error: {TODO: handle (message to trigger exception?) };
-
- mim_Data, mim_Longdata, mim_Longerror:
- { Note: mim_Longerror included because there's a bug in the Maui
- input driver that sends MIM_LONGERROR for subsequent buffers when
- the input buffer is smaller than the sysex block being received }
-
- begin
- { TODO: Make filtered messages customisable, I'm sure someone wants to
- do something with MTC! }
- if (dwParam1 <> MIDI_ACTIVESENSING) and
- (dwParam1 <> MIDI_TIMINGCLOCK) then
- begin
-
- { The device driver passes us the instance data pointer we
- specified for midiInOpen. Use this to get the buffer address
- and window handle for the MIDI control }
- thisCtlInfo := PMidiCtlInfo(dwInstance);
- thisBuffer := thisCtlInfo^.PBuffer;
-
- { Screen out short messages if we've been asked to }
- if ((wMsg <> mim_Data) or (thisCtlInfo^.SysexOnly = False))
- and (thisCtlInfo <> Nil) and (thisBuffer <> Nil) then
- begin
- with thisEvent do
- begin
- timestamp := dwParam2;
- if (wMsg = mim_Longdata) or
- (wMsg = mim_Longerror) then
- begin
- data := 0;
- sysex := PMidiHdr(dwParam1);
- end
- else
- begin
- data := dwParam1;
- sysex := Nil;
- end;
- end;
- if CircbufPutEvent( thisBuffer, @thisEvent ) then
- { Send a message to the control to say input's arrived }
- PostMessage(thisCtlInfo^.hWindow, mim_Data, 0, 0)
- else
- { Buffer overflow }
- PostMessage(thisCtlInfo^.hWindow, mim_Overflow, 0, 0);
- end;
- end;
- end;
-
- mom_Done: { Sysex output complete, dwParam1 is pointer to MIDIHDR }
- begin
- { Notify the control that its sysex output is finished.
- The control should call midiOutUnprepareHeader before freeing the buffer }
- PostMessage(PMidiCtlInfo(dwInstance)^.hWindow, mom_Done, 0, dwParam1);
- end;
-
- end; { Case }
-end;
-
-end.
+{ $Header: /MidiComp/DELPHMCB.PAS 2 10/06/97 7:33 Davec $ } + +{MIDI callback for Delphi, was DLL for Delphi 1} + +unit Delphmcb; + +{ These segment options required for the MIDI callback functions } +{$C PRELOAD FIXED PERMANENT} + +interface + +{$IFDEF FPC} + {$MODE Delphi} + {$H+} // use AnsiString +{$ENDIF} + +uses + Windows, + MMsystem, + Circbuf, + MidiDefs, + MidiCons; + +procedure midiHandler( + hMidiIn: HMidiIn; + wMsg: UINT; + dwInstance: DWORD; + dwParam1: DWORD; + dwParam2: DWORD); stdcall; export; +function CircbufPutEvent(PBuffer: PCircularBuffer; PTheEvent: PMidiBufferItem): Boolean; stdcall; export; + +implementation + +{ Add an event to the circular input buffer. } +function CircbufPutEvent(PBuffer: PCircularBuffer; PTheEvent: PMidiBufferItem): Boolean; stdcall; +begin + If (PBuffer^.EventCount < PBuffer^.Capacity) Then + begin + Inc(Pbuffer^.EventCount); + + { Todo: better way of copying this record } + with PBuffer^.PNextput^ do + begin + Timestamp := PTheEvent^.Timestamp; + Data := PTheEvent^.Data; + Sysex := PTheEvent^.Sysex; + end; + + { Move to next put location, with wrap } + Inc(Pbuffer^.PNextPut); + If (PBuffer^.PNextPut = PBuffer^.PEnd) then + PBuffer^.PNextPut := PBuffer^.PStart; + + CircbufPutEvent := True; + end + else + CircbufPutEvent := False; +end; + +{ This is the callback function specified when the MIDI device was opened + by midiInOpen. It's called at interrupt time when MIDI input is seen + by the MIDI device driver(s). See the docs for midiInOpen for restrictions + on the Windows functions that can be called in this interrupt. } +procedure midiHandler( + hMidiIn: HMidiIn; + wMsg: UINT; + dwInstance: DWORD; + dwParam1: DWORD; + dwParam2: DWORD); stdcall; +var + thisEvent: TMidiBufferItem; + thisCtlInfo: PMidiCtlInfo; + thisBuffer: PCircularBuffer; +Begin + case wMsg of + + mim_Open: {nothing}; + + mim_Error: {TODO: handle (message to trigger exception?) }; + + mim_Data, mim_Longdata, mim_Longerror: + { Note: mim_Longerror included because there's a bug in the Maui + input driver that sends MIM_LONGERROR for subsequent buffers when + the input buffer is smaller than the sysex block being received } + + begin + { TODO: Make filtered messages customisable, I'm sure someone wants to + do something with MTC! } + if (dwParam1 <> MIDI_ACTIVESENSING) and + (dwParam1 <> MIDI_TIMINGCLOCK) then + begin + + { The device driver passes us the instance data pointer we + specified for midiInOpen. Use this to get the buffer address + and window handle for the MIDI control } + thisCtlInfo := PMidiCtlInfo(dwInstance); + thisBuffer := thisCtlInfo^.PBuffer; + + { Screen out short messages if we've been asked to } + if ((wMsg <> mim_Data) or (thisCtlInfo^.SysexOnly = False)) + and (thisCtlInfo <> Nil) and (thisBuffer <> Nil) then + begin + with thisEvent do + begin + timestamp := dwParam2; + if (wMsg = mim_Longdata) or + (wMsg = mim_Longerror) then + begin + data := 0; + sysex := PMidiHdr(dwParam1); + end + else + begin + data := dwParam1; + sysex := Nil; + end; + end; + if CircbufPutEvent( thisBuffer, @thisEvent ) then + { Send a message to the control to say input's arrived } + PostMessage(thisCtlInfo^.hWindow, mim_Data, 0, 0) + else + { Buffer overflow } + PostMessage(thisCtlInfo^.hWindow, mim_Overflow, 0, 0); + end; + end; + end; + + mom_Done: { Sysex output complete, dwParam1 is pointer to MIDIHDR } + begin + { Notify the control that its sysex output is finished. + The control should call midiOutUnprepareHeader before freeing the buffer } + PostMessage(PMidiCtlInfo(dwInstance)^.hWindow, mom_Done, 0, dwParam1); + end; + + end; { Case } +end; + +end. |