Files
package-zearch-temp/UOS/examples/main_mt.pas
Indrajith K L 6a1d80d3b8 Implements Module Player working in Form
* Implements Embedding .xm music in Final Application
2025-06-02 15:15:16 +05:30

180 lines
4.4 KiB
ObjectPascal

unit main_mt;
{$mode objfpc}{$H+}
interface
uses
SysUtils,
Forms,
StdCtrls,
Buttons,
uos_flat,
Classes;
type
{ TForm1 }
TForm1 = class(TForm)
BitBtnPlay: TBitBtn;
ButtonQuit: TButton;
interchar: TEdit;
interspace: TEdit;
Label1: TLabel;
Label2: TLabel;
Label3: TLabel;
Memo1: TMemo;
procedure BitBtnPlayClick(Sender: TObject);
procedure ButtonQuitClick(Sender: TObject);
procedure FormActivate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure CreateMorsePlayer();
private
{ private declarations }
public
{ public declarations }
end;
var
Form1: TForm1;
i: cardinal;
ordir: string;
implementation
{$R *.lfm}
procedure TForm1.CreateMorsePlayer();
var
filetoplay, fileerror: string;
chara: string;
player: cardinal;
begin
if i <= length(Memo1.Text) then
begin
chara := copy(Memo1.Text, i, 1);
fileerror := ordir + 'sound' + directoryseparator + 'morse_audio' + directoryseparator + '0.mp3';
if odd(i) then
player := 0
else
player := 1; ///// to switch between player1 <> player2
if chara <> ' ' then
begin
uos_CreatePlayer(player);
{$if defined(cpuarm) or defined(cpuaarch64)} // need a lower latency
uos_AddIntoDevOut(player, -1, 0.08, -1, -1, -1, -1, -1) ;
{$else}
uos_AddIntoDevOut(player);
{$endif}
filetoplay := ordir + 'sound' + directoryseparator + 'morse_audio' + directoryseparator + lowercase(chara) + '.mp3';
if fileexists(PChar(filetoplay)) then
uos_AddFromFile(player, PChar(filetoplay))
else
uos_AddFromFile(player, PChar(fileerror)); /// if not existing char
if length(Memo1.Text) > i then
uos_EndProc(player, @CreateMorsePlayer); /// assign EndProc
sleep(StrToInt(interchar.Text)); ///// the pause between each character
uos_Play(player);
Inc(i);
end
else
begin
sleep(StrToInt(interspace.Text)); ///// the pause if space character
Inc(i);
if length(Memo1.Text) >= i then
CreateMorsePlayer;
end;
end;
end;
procedure TForm1.BitBtnPlayClick(Sender: TObject);
var
charac: string;
begin
if Memo1.Text <> '' then
begin
i := 1;
CreateMorsePlayer();
end;
end;
procedure TForm1.ButtonQuitClick(Sender: TObject);
begin
Close;
end;
procedure TForm1.FormActivate(Sender: TObject);
var
PA_FileName, MP_FileName: string;
begin
memo1.Text := '';
ordir := IncludeTrailingBackslash(ExtractFilePath(ParamStr(0)));
{$IFDEF Windows}
{$if defined(cpu64)}
PA_FileName := ordir + 'lib\Windows\64bit\LibPortaudio-64.dll';
MP_FileName := ordir + 'lib\Windows\64bit\LibMpg123-64.dll';
{$else}
PA_FileName := ordir + 'lib\Windows\32bit\LibPortaudio-32.dll';
MP_FileName := ordir + 'lib\Windows\32bit\LibMpg123-32.dll';
{$endif}
{$ENDIF}
{$if defined(CPUAMD64) and defined(openbsd) }
PA_FileName := ordir + 'lib/OpenBSD/64bit/LibPortaudio-64.so';
MP_FileName := ordir + 'lib/OpenBSD/64bit/LibMpg123-64.so';
{$ENDIF}
{$if defined(CPUAMD64) and defined(linux) }
PA_FileName := ordir + 'lib/Linux/64bit/LibPortaudio-64.so';
MP_FileName := ordir + 'lib/Linux/64bit/LibMpg123-64.so';
{$ENDIF}
{$if defined(cpu86) and defined(linux)}
PA_FileName := ordir + 'lib/Linux/32bit/LibPortaudio-32.so';
MP_FileName := ordir + 'lib/Linux/32bit/LibMpg123-32.so';
{$endif}
{$if defined(linux) and defined(cpuarm)}
PA_FileName := ordir + 'lib/Linux/arm_raspberrypi/libportaudio-arm.so';
MP_FileName := ordir + 'lib/Linux/arm_raspberrypi/libsndfile-arm.so';
{$ENDIF}
{$if defined(linux) and defined(cpuaarch64)}
PA_FileName := ordir + 'lib/Linux/aarch64_raspberrypi/libportaudio_aarch64.so';
MP_FileName := ordir + 'lib/Linux/aarch64_raspberrypi/libmpg123_aarch64.so';
{$ENDIF}
{$IFDEF freebsd}
{$if defined(cpu64)}
PA_FileName := ordir + 'lib/FreeBSD/64bit/libportaudio-64.so';
MP_FileName := ordir + 'lib/FreeBSD/64bit/libmpg123-64.so';
{$else}
PA_FileName := ordir + 'lib/FreeBSD/32bit/libportaudio-32.so';
MP_FileName := ordir + 'lib/FreeBSD/32bit/libmpg123-32.so';
{$endif}
{$ENDIF}
uos_LoadLib(PChar(PA_FileName), nil, PChar(MP_FileName), nil, nil, nil, nil);
end;
procedure TForm1.FormDestroy(Sender: TObject);
begin
uos_free; /// for release dynamic loaded libraries
end;
end.