branch to merge video preview in song menu

git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/branches/experimental@2411 b956fd51-792f-4845-bead-9b4dfca2ff2c

4 files changed, 262 insertions, 0 deletions

diff --git a/VideoPreview/src/lib/midi/demo/MidiTest.dfm b/VideoPreview/src/lib/midi/demo/MidiTest.dfm
new file mode 100644
index 00000000..0d0ae182
--- /dev/null
+++ b/VideoPreview/src/lib/midi/demo/MidiTest.dfm
diff --git a/VideoPreview/src/lib/midi/demo/MidiTest.pas b/VideoPreview/src/lib/midi/demo/MidiTest.pas
new file mode 100644
index 00000000..793db730
--- /dev/null
+++ b/VideoPreview/src/lib/midi/demo/MidiTest.pas
@@ -0,0 +1,249 @@
+// Test application for TMidiFile
+
+unit MidiTest;
+
+interface
+
+uses
+  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
+  StdCtrls, MidiFile,  ExtCtrls, MidiOut, MidiType, MidiScope, Grids;
+type
+  TMidiPlayer = class(TForm)
+    OpenDialog1: TOpenDialog;
+    Button1: TButton;
+    Button3: TButton;
+    Button4: TButton;
+    MidiOutput1: TMidiOutput;
+    cmbInput: TComboBox;
+    MidiFile1: TMidiFile;
+    MidiScope1: TMidiScope;
+    Label3: TLabel;
+    edtBpm: TEdit;
+    Memo2: TMemo;
+    edtTime: TEdit;
+    Button2: TButton;
+    TrackGrid: TStringGrid;
+    TracksGrid: TStringGrid;
+    edtLength: TEdit;
+    procedure Button1Click(Sender: TObject);
+    procedure MidiFile1MidiEvent(event: PMidiEvent);
+    procedure Button3Click(Sender: TObject);
+    procedure Button4Click(Sender: TObject);
+    procedure FormCreate(Sender: TObject);
+    procedure cmbInputChange(Sender: TObject);
+    procedure MidiFile1UpdateEvent(Sender: TObject);
+    procedure Button2Click(Sender: TObject);
+    procedure edtBpmKeyPress(Sender: TObject; var Key: Char);
+    procedure TracksGridSelectCell(Sender: TObject; Col, Row: Integer;
+      var CanSelect: Boolean);
+    procedure FormShow(Sender: TObject);
+  private
+    { Private declarations }
+    MidiOpened : boolean;
+    procedure SentAllNotesOff;
+
+    procedure MidiOpen;
+    procedure MidiClose;
+
+  public
+    { Public declarations }
+  end;
+
+var
+  MidiPlayer: TMidiPlayer;
+
+implementation
+
+{$R *.DFM}
+
+procedure TMidiPlayer.Button1Click(Sender: TObject);
+var
+  i,j: integer;
+  track : TMidiTrack;
+  event : PMidiEvent;
+begin
+  if opendialog1.execute then
+  begin
+    midifile1.filename := opendialog1.filename;
+    midifile1.readfile;
+//    label1.caption := IntToStr(midifile1.NumberOfTracks);
+    edtBpm.text := IntToStr(midifile1.Bpm);
+//    TracksGrid.cells.clear;
+    for i := 0 to midifile1.NumberOfTracks-1 do
+    begin
+      track := midifile1.getTrack(i);
+      TracksGrid.cells[0,i] := 'Tr: '+ track.getName + ' '+ track.getInstrument ;
+    end;
+    edtLength.Text := MyTimeToStr(MidiFile1.GetTrackLength);
+  end;
+end;
+
+procedure TMidiPlayer.MidiFile1MidiEvent(event: PMidiEvent);
+var mEvent : TMyMidiEvent;
+begin
+  mEvent := TMyMidiEvent.Create;
+  if not (event.event = $FF) then
+  begin
+    mEvent.MidiMessage := event.event;
+    mEvent.data1 := event.data1;
+    mEvent.data2 := event.data2;
+    midioutput1.PutMidiEvent(mEvent);
+  end
+  else
+  begin
+    if (event.data1 >= 1) and (event.data1 < 15) then
+    begin
+      memo2.Lines.add(IntToStr(event.data1) + ' '+ event.str);
+    end
+  end;
+  midiScope1.MidiEvent(event.event,event.data1,event.data2);
+  mEvent.Destroy;
+end;
+
+procedure TMidiPlayer.SentAllNotesOff;
+var mEvent : TMyMidiEvent;
+channel : integer;
+begin
+  mEvent := TMyMidiEvent.Create;
+  for channel:= 0 to 15 do
+  begin
+    mEvent.MidiMessage := $B0 + channel;
+    mEvent.data1 := $78;
+    mEvent.data2 := 0;
+    if MidiOpened then
+      midioutput1.PutMidiEvent(mEvent);
+    midiScope1.MidiEvent(mEvent.MidiMessage,mEvent.data1,mEvent.data2);
+  end;
+  mEvent.Destroy;
+end;
+
+procedure TMidiPlayer.Button3Click(Sender: TObject);
+begin
+  midifile1.StartPlaying;
+end;
+
+procedure TMidiPlayer.Button4Click(Sender: TObject);
+begin
+  midifile1.StopPlaying;
+  SentAllNotesOff;
+end;
+
+procedure TMidiPlayer.MidiOpen;
+begin
+  if not (cmbInput.Text = '') then
+  begin
+    MidiOutput1.ProductName := cmbInput.Text;
+    MidiOutput1.OPEN;
+    MidiOpened := true;
+  end;
+end;
+
+procedure TMidiPlayer.MidiClose;
+begin
+  if MidiOpened then
+  begin
+    MidiOutput1.Close;
+    MidiOpened := false;
+  end;
+end;
+
+
+procedure TMidiPlayer.FormCreate(Sender: TObject);
+var thisDevice : integer;
+begin
+  for thisDevice := 0 to MidiOutput1.NumDevs - 1 do
+  begin
+    MidiOutput1.DeviceID := thisDevice;
+    cmbInput.Items.Add(MidiOutput1.ProductName);
+  end;
+  cmbInput.ItemIndex := 0;
+  MidiOpened := false;
+  MidiOpen;
+end;
+
+procedure TMidiPlayer.cmbInputChange(Sender: TObject);
+begin
+  MidiClose;
+  MidiOPen;
+end;
+
+procedure TMidiPlayer.MidiFile1UpdateEvent(Sender: TObject);
+begin
+  edtTime.Text := MyTimeToStr(MidiFile1.GetCurrentTime);
+  edtTime.update;
+  if MidiFile1.ready then
+  begin
+    midifile1.StopPlaying;
+    SentAllNotesOff;
+  end;
+end;
+
+procedure TMidiPlayer.Button2Click(Sender: TObject);
+begin
+  MidiFile1.ContinuePlaying;
+end;
+
+procedure TMidiPlayer.edtBpmKeyPress(Sender: TObject; var Key: Char);
+begin
+ if Key = char(13) then
+ begin
+   MidiFile1.Bpm := StrToInt(edtBpm.Text);
+   edtBpm.text := IntToStr(midifile1.Bpm);
+   abort;
+ end;
+
+end;
+
+procedure TMidiPlayer.TracksGridSelectCell(Sender: TObject; Col,
+  Row: Integer; var CanSelect: Boolean);
+var
+  MidiTrack : TMidiTrack;
+  i         : integer;
+  j         : integer;
+  event     : PMidiEvent;
+begin
+  CanSelect := false;
+  if Row < MidiFile1.NumberOfTracks then
+  begin
+    CanSelect := true;
+    MidiTrack := MidiFile1.GetTrack(Row);
+    TrackGrid.RowCount := 2;
+    TrackGrid.RowCount := MidiTrack.getEventCount;
+    j := 1;
+    for i := 0 to MidiTrack.GetEventCount-1 do
+    begin
+      event := MidiTrack.getEvent(i);
+      if not (event.len = -1) then
+      begin // do not print when
+        TrackGrid.cells[0,j] := IntToStr(i);
+        TrackGrid.cells[1,j] := MyTimeToStr(event.time);
+        TrackGrid.cells[2,j] := IntToHex(event.event,2);
+        if not (event.event = $FF) then
+        begin
+          TrackGrid.cells[3,j] := IntToStr(event.len);
+          TrackGrid.cells[4,j] := KeyToStr(event.data1);
+          TrackGrid.cells[5,j] := IntToStr(event.data2);
+        end
+        else
+        begin
+          TrackGrid.cells[3,j] := IntToStr(event.data1);
+          TrackGrid.cells[4,j] := '';
+          TrackGrid.cells[5,j] := event.str;
+        end;
+        inc(j);
+      end;
+    end;
+    TrackGrid.RowCount := j;
+  end;
+end;
+
+procedure TMidiPlayer.FormShow(Sender: TObject);
+begin
+  TrackGrid.ColWidths[0] := 30;
+  TrackGrid.ColWidths[2] := 30;
+  TrackGrid.ColWidths[3] := 30;
+  TrackGrid.ColWidths[4] := 30;
+  TrackGrid.ColWidths[5] := 100;
+end;
+
+end.
diff --git a/VideoPreview/src/lib/midi/demo/Project1.dpr b/VideoPreview/src/lib/midi/demo/Project1.dpr
new file mode 100644
index 00000000..7aa4e512
--- /dev/null
+++ b/VideoPreview/src/lib/midi/demo/Project1.dpr
@@ -0,0 +1,13 @@
+program Project1;
+
+uses
+  Forms,
+  MidiTest in 'MidiTest.pas' {MidiPlayer};
+
+{$R *.RES}
+
+begin
+  Application.Initialize;
+  Application.CreateForm(TMidiPlayer, MidiPlayer);
+  Application.Run;
+end.
diff --git a/VideoPreview/src/lib/midi/demo/Project1.res b/VideoPreview/src/lib/midi/demo/Project1.res
new file mode 100644
index 00000000..2b020d69
--- /dev/null
+++ b/VideoPreview/src/lib/midi/demo/Project1.res