diff options
Diffstat (limited to 'Medley/src/base/UDLLManager.pas')
| -rw-r--r-- | Medley/src/base/UDLLManager.pas | 293 |
1 files changed, 293 insertions, 0 deletions
diff --git a/Medley/src/base/UDLLManager.pas b/Medley/src/base/UDLLManager.pas new file mode 100644 index 00000000..d5bb1480 --- /dev/null +++ b/Medley/src/base/UDLLManager.pas @@ -0,0 +1,293 @@ +{* UltraStar Deluxe - Karaoke Game + * + * UltraStar Deluxe is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + * $URL$ + * $Id$ + *} + +unit UDLLManager; + +interface + +{$IFDEF FPC} + {$MODE Delphi} +{$ENDIF} + +{$I switches.inc} + +uses + ModiSDK, + UFiles, + UPath, + UFilesystem; + +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 IPath; + Selected: ^TPluginInfo; + + constructor Create; + + procedure GetPluginList; + procedure ClearPluginInfo(No: cardinal); + function LoadPluginInfo(const Filename: IPath; 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 +{$IF Defined(MSWINDOWS)} + DLLExt = '.dll'; +{$ELSEIF Defined(DARWIN)} + DLLExt = '.dylib'; +{$ELSEIF Defined(UNIX)} + DLLExt = '.so'; +{$IFEND} + +implementation + +uses + {$IFDEF MSWINDOWS} + windows, + {$ELSE} + dynlibs, + {$ENDIF} + UPathUtils, + ULog, + SysUtils; + + +constructor TDLLMan.Create; +begin + inherited; + SetLength(Plugins, 0); + SetLength(PluginPaths, Length(Plugins)); + GetPluginList; +end; + +procedure TDLLMan.GetPluginList; +var + Iter: IFileIterator; + FileInfo: TFileInfo; +begin + Iter := FileSystem.FileFind(PluginPath.Append('*' + DLLExt), 0); + while (Iter.HasNext) do + begin + SetLength(Plugins, Length(Plugins)+1); + SetLength(PluginPaths, Length(Plugins)); + + FileInfo := Iter.Next; + + if LoadPluginInfo(FileInfo.Name, High(Plugins)) then // loaded succesful + begin + PluginPaths[High(PluginPaths)] := FileInfo.Name; + end + else // error loading + begin + SetLength(Plugins, Length(Plugins)-1); + SetLength(PluginPaths, Length(Plugins)); + end; + 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 := true; + Plugins[No].ShowNotes := true; + Plugins[No].LoadVideo := true; + Plugins[No].LoadBack := true; + + Plugins[No].TeamModeOnly := true; + Plugins[No].GetSoundData := true; + Plugins[No].Dummy := true; + + + Plugins[No].BGShowFull := true; + Plugins[No].BGShowFull_O := true; + + Plugins[No].ShowRateBar := true; + Plugins[No].ShowRateBar_O := true; + + Plugins[No].EnLineBonus := true; + Plugins[No].EnLineBonus_O := true; +end; + +function TDLLMan.LoadPluginInfo(const Filename: IPath; No: cardinal): boolean; +var + hLibg: THandle; + Info: pModi_PluginInfo; +// I: integer; +begin + Result := true; +// 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(PluginPath.Append(Filename).ToNative)); +// 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.ToNative + '": Info procedure not found'); + + FreeLibrary (hLibg); + end + else + Log.LogError('Could not load plugin "' + Filename.ToNative + '": Libary not loaded'); +end; + +function TDLLMan.LoadPlugin(No: cardinal): boolean; +begin + Result := true; +// load libary + hLib := LoadLibrary(PChar(PluginPath.Append(PluginPaths[No]).ToNative)); +// if loaded + if (hLib <> 0) then + begin +// load info procedure + @P_Init := GetProcAddress (hLib, 'Init'); + @P_Draw := GetProcAddress (hLib, 'Draw'); + @P_Finish := GetProcAddress (hLib, '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].ToNative + '": Procedures not found'); + end; + end + else + Log.LogError('Could not load plugin "' + PluginPaths[No].ToNative + '": 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 := true +end; + +function TDLLMan.PluginDraw (var Playerinfo: TPlayerinfo; const CurSentence: cardinal): boolean; +begin + if (@P_Draw <> nil) then + Result := P_Draw (PlayerInfo, CurSentence) + else + Result := true +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. |