src/music/os2_m.cpp

   1 /* $Id$ */
   2
   3 /*
   4  * This file is part of OpenTTD.
   5  * 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.
   6  * 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.
   7  * 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/>.
   8  */
   9
  10 /** @file os2_m.cpp Music playback on OS/2. */
  11
  12 #include "../stdafx.h"
  13 #include "../openttd.h"
  14 #include "os2_m.h"
  15
  16 #define INCL_DOS
  17 #define INCL_OS2MM
  18 #define INCL_WIN
  19
  20 #include <stdarg.h>
  21 #include <os2.h>
  22 #include <os2me.h>
  23
  24 #include "../safeguards.h"
  25
  26 /**********************
  27  * OS/2 MIDI PLAYER
  28  **********************/
  29
  30 /* Interesting how similar the MCI API in OS/2 is to the Win32 MCI API,
  31  * eh? Anyone would think they both came from the same place originally! ;)
  32  */
  33
  34 /**
  35  * Send a midi command.
  36  * @param cmd The command to send.
  37  * @return The result of sending it.
  38  */
  39 static long CDECL MidiSendCommand(const char *cmd, ...)
  40 {
  41         va_list va;
  42         char buf[512];
  43         va_start(va, cmd);
  44         vseprintf(buf, lastof(buf), cmd, va);
  45         va_end(va);
  46         return mciSendString(buf, NULL, 0, NULL, 0);
  47 }
  48
  49 /** OS/2's music player's factory. */
  50 static FMusicDriver_OS2 iFMusicDriver_OS2;
  51
  52 void MusicDriver_OS2::PlaySong(const char *filename)
  53 {
  54         MidiSendCommand("close all");
  55
  56         if (MidiSendCommand("open %s type sequencer alias song", filename) != 0) {
  57                 return;
  58         }
  59
  60         MidiSendCommand("play song from 0");
  61 }
  62
  63 void MusicDriver_OS2::StopSong()
  64 {
  65         MidiSendCommand("close all");
  66 }
  67
  68 void MusicDriver_OS2::SetVolume(byte vol)
  69 {
  70         MidiSendCommand("set song audio volume %d", ((vol/127)*100));
  71 }
  72
  73 bool MusicDriver_OS2::IsSongPlaying()
  74 {
  75         char buf[16];
  76         mciSendString("status song mode", buf, sizeof(buf), NULL, 0);
  77         return strcmp(buf, "playing") == 0 || strcmp(buf, "seeking") == 0;
  78 }
  79
  80 const char *MusicDriver_OS2::Start(const char * const *parm)
  81 {
  82         return 0;
  83 }
  84
  85 void MusicDriver_OS2::Stop()
  86 {
  87         MidiSendCommand("close all");
  88 }