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unit UDLLManager;
{$IFDEF FPC}
{$MODE DELPHI}
{$ENDIF}
interface
uses ModiSDK,
UFiles;
type
TDLLMan = class
private
hLib: THandle;
P_Init: fModi_Init;
P_Draw: fModi_Draw;
P_Finish: fModi_Finish;
P_RData: pModi_RData;
public
Plugins: array of TPluginInfo;
PluginPaths: array of String;
Selected: ^TPluginInfo;
constructor Create;
procedure GetPluginList;
procedure ClearPluginInfo(No: Cardinal);
function LoadPluginInfo(Filename: String; No: Cardinal): boolean;
function LoadPlugin(No: Cardinal): boolean;
procedure UnLoadPlugin;
function PluginInit (const TeamInfo: TTeamInfo; var Playerinfo: TPlayerinfo; const Sentences: TSentences; const LoadTex: fModi_LoadTex; const Print: fModi_Print; LoadSound: fModi_LoadSound; PlaySound: pModi_PlaySound): boolean;
function PluginDraw (var Playerinfo: TPlayerinfo; const CurSentence: Cardinal): boolean;
function PluginFinish (var Playerinfo: TPlayerinfo): byte;
procedure PluginRData (handle: HSTREAM; buffer: Pointer; len: DWORD; user: DWORD);
end;
var
DLLMan: TDLLMan;
const
DLLPath = 'Plugins';
{$IFDEF win32}
DLLExt = '.dll';
{$ELSE}
DLLExt = '.so';
{$ENDIF}
implementation
uses {$IFDEF win32}
windows,
{$ELSE}
dynlibs,
{$ENDIF}
ULog,
SysUtils;
constructor TDLLMan.Create;
begin
SetLength(Plugins, 0);
SetLength(PluginPaths, Length(Plugins));
GetPluginList;
end;
procedure TDLLMan.GetPluginList;
var
SR: TSearchRec;
begin
if FindFirst(DLLPath +PathDelim+ '*' + DLLExt, faAnyFile , SR) = 0 then
begin
repeat
SetLength(Plugins, Length(Plugins)+1);
SetLength(PluginPaths, Length(Plugins));
if LoadPluginInfo(SR.Name, High(Plugins)) then //Loaded succesful
begin
PluginPaths[High(PluginPaths)] := SR.Name;
end
else //Error Loading
begin
SetLength(Plugins, Length(Plugins)-1);
SetLength(PluginPaths, Length(Plugins));
end;
until FindNext(SR) <> 0;
FindClose(SR);
end;
end;
procedure TDLLMan.ClearPluginInfo(No: Cardinal);
begin
//Set to Party Modi Plugin
Plugins[No].Typ := 8;
Plugins[No].Name := 'unknown';
Plugins[No].NumPlayers := 0;
Plugins[No].Creator := 'Nobody';
Plugins[No].PluginDesc := 'NO_PLUGIN_DESC';
Plugins[No].LoadSong := True;
Plugins[No].ShowScore := True;
Plugins[No].ShowBars := False;
Plugins[No].ShowNotes := True;
Plugins[No].LoadVideo := True;
Plugins[No].LoadBack := True;
Plugins[No].TeamModeOnly := False;
Plugins[No].GetSoundData := False;
Plugins[No].Dummy := False;
Plugins[No].BGShowFull := False;
Plugins[No].BGShowFull_O := True;
Plugins[No].ShowRateBar:= False;
Plugins[No].ShowRateBar_O := True;
Plugins[No].EnLineBonus := False;
Plugins[No].EnLineBonus_O := True;
end;
function TDLLMan.LoadPluginInfo(Filename: String; No: Cardinal): boolean;
var
hLibg: THandle;
Info: pModi_PluginInfo;
I: Integer;
begin
Result := False;
//Clear Plugin Info
ClearPluginInfo(No);
{//Workaround Plugins Loaded 2 Times
For I := low(PluginPaths) to high(PluginPaths) do
if (PluginPaths[I] = Filename) then
exit; }
//Load Libary
hLibg := LoadLibrary(PChar(DLLPath +PathDelim+ Filename));
//If Loaded
if (hLibg <> 0) then
begin
//Load Info Procedure
@Info := GetProcAddress (hLibg, PChar('PluginInfo'));
//If Loaded
if (@Info <> nil) then
begin
//Load PluginInfo
Info (Plugins[No]);
Result := True;
end
else
Log.LogError('Could not Load Plugin "' + Filename + '": Info Procedure not Found');
FreeLibrary (hLibg);
end
else
Log.LogError('Could not Load Plugin "' + Filename + '": Libary not Loaded');
end;
function TDLLMan.LoadPlugin(No: Cardinal): boolean;
begin
Result := False;
//Load Libary
hLib := LoadLibrary(PChar(DLLPath +PathDelim+ PluginPaths[No]));
//If Loaded
if (hLib <> 0) then
begin
//Load Info Procedure
@P_Init := GetProcAddress (hLib, PChar('Init'));
@P_Draw := GetProcAddress (hLib, PChar('Draw'));
@P_Finish := GetProcAddress (hLib, PChar('Finish'));
//If Loaded
if (@P_Init <> nil) And (@P_Draw <> nil) And (@P_Finish <> nil) then
begin
Selected := @Plugins[No];
Result := True;
end
else
begin
Log.LogError('Could not Load Plugin "' + PluginPaths[No] + '": Procedures not Found');
end;
end
else
Log.LogError('Could not Load Plugin "' + PluginPaths[No] + '": Libary not Loaded');
end;
procedure TDLLMan.UnLoadPlugin;
begin
if (hLib <> 0) then
FreeLibrary (hLib);
//Selected := nil;
@P_Init := nil;
@P_Draw := nil;
@P_Finish := nil;
@P_RData := nil;
end;
function TDLLMan.PluginInit (const TeamInfo: TTeamInfo; var Playerinfo: TPlayerinfo; const Sentences: TSentences; const LoadTex: fModi_LoadTex; const Print: fModi_Print; LoadSound: fModi_LoadSound; PlaySound: pModi_PlaySound): boolean;
var
Methods: TMethodRec;
begin
Methods.LoadTex := LoadTex;
Methods.Print := Print;
Methods.LoadSound := LoadSound;
Methods.PlaySound := PlaySound;
if (@P_Init <> nil) then
Result := P_Init (TeamInfo, PlayerInfo, Sentences, Methods)
else
Result := False
end;
function TDLLMan.PluginDraw (var Playerinfo: TPlayerinfo; const CurSentence: Cardinal): boolean;
begin
if (@P_Draw <> nil) then
Result := P_Draw (PlayerInfo, CurSentence)
else
Result := False
end;
function TDLLMan.PluginFinish (var Playerinfo: TPlayerinfo): byte;
begin
if (@P_Finish <> nil) then
Result := P_Finish (PlayerInfo)
else
Result := 0;
end;
procedure TDLLMan.PluginRData (handle: HSTREAM; buffer: Pointer; len: DWORD; user: DWORD);
begin
if (@P_RData <> nil) then
P_RData (handle, buffer, len, user);
end;
end.
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