# os2_m.cpp

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    00001 /* $Id$ */
    00002
    00003 /*
    00004  * This file is part of OpenTTD.
    00005  * OpenTTD 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, version 2.
    00006  * OpenTTD 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.
    00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
    00008  */
    00009
    00012 #include "../stdafx.h"
    00013 #include "../openttd.h"
    00014 #include "os2_m.h"
    00015
    00016 #define INCL_DOS
    00017 #define INCL_OS2MM
    00018 #define INCL_WIN
    00019
    00020 #include <stdarg.h>
    00021 #include <os2.h>
    00022 #include <os2me.h>
    00023
    00024 /**********************
    00025  * OS/2 MIDI PLAYER
    00026  **********************/
    00027
    00028 /* Interesting how similar the MCI API in OS/2 is to the Win32 MCI API,
    00029  * eh? Anyone would think they both came from the same place originally! ;)
    00030  */
    00031
    00037 static long CDECL MidiSendCommand(const char *cmd, ...)
    00038 {
    00039   va_list va;
    00040   char buf[512];
    00041   va_start(va, cmd);
    00042   vseprintf(buf, lastof(buf), cmd, va);
    00043   va_end(va);
    00044   return mciSendString(buf, NULL, 0, NULL, 0);
    00045 }
    00046
    00048 static FMusicDriver_OS2 iFMusicDriver_OS2;
    00049
    00050 void MusicDriver_OS2::PlaySong(const char *filename)
    00051 {
    00052   MidiSendCommand("close all");
    00053
    00054   if (MidiSendCommand("open %s type sequencer alias song", filename) != 0) {
    00055     return;
    00056   }
    00057
    00058   MidiSendCommand("play song from 0");
    00059 }
    00060
    00061 void MusicDriver_OS2::StopSong()
    00062 {
    00063   MidiSendCommand("close all");
    00064 }
    00065
    00066 void MusicDriver_OS2::SetVolume(byte vol)
    00067 {
    00068   MidiSendCommand("set song audio volume %d", ((vol/127)*100));
    00069 }
    00070
    00071 bool MusicDriver_OS2::IsSongPlaying()
    00072 {
    00073   char buf[16];
    00074   mciSendString("status song mode", buf, sizeof(buf), NULL, 0);
    00075   return strcmp(buf, "playing") == 0 || strcmp(buf, "seeking") == 0;
    00076 }
    00077
    00078 const char *MusicDriver_OS2::Start(const char * const *parm)
    00079 {
    00080   return 0;
    00081 }
    00082
    00083 void MusicDriver_OS2::Stop()
    00084 {
    00085   MidiSendCommand("close all");
    00086 }