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1 /********************************************************************* |
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2 * OpenTTD: An Open Source Transport Tycoon Deluxe clone * |
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3 * Copyright (c) 2002-2004 OpenTTD Developers. All Rights Reserved. * |
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4 * * |
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5 * Web site: http://openttd.sourceforge.net/ * |
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6 *********************************************************************/ |
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7 |
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8 /* |
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9 * This program is free software; you can redistribute it and/or modify |
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10 * it under the terms of the GNU General Public License as published by |
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11 * the Free Software Foundation; either version 2 of the License, or |
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12 * (at your option) any later version. |
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13 * |
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14 * This program is distributed in the hope that it will be useful, |
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15 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 * GNU General Public License for more details. |
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18 * |
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19 * You should have received a copy of the GNU General Public License |
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20 * along with this program; if not, write to the Free Software |
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21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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22 */ |
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23 |
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24 /* DirectMusic driver for Win32 */ |
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25 /* Based on dxmci from TTDPatch */ |
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26 |
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27 #include "stdafx.h" |
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28 |
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29 #ifdef WIN32_ENABLE_DIRECTMUSIC_SUPPORT |
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30 |
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31 #include "openttd.h" |
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32 #include "string.h" |
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33 #include "variables.h" |
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34 #include "sound.h" |
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35 #include "music/dmusic.h" |
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36 |
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37 static const char * DMusicMidiStart(const char * const *parm); |
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38 static void DMusicMidiStop(void); |
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39 static void DMusicMidiPlaySong(const char *filename); |
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40 static void DMusicMidiStopSong(void); |
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41 static bool DMusicMidiIsSongPlaying(void); |
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42 static void DMusicMidiSetVolume(byte vol); |
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43 |
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44 const HalMusicDriver _dmusic_midi_driver = { |
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45 DMusicMidiStart, |
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46 DMusicMidiStop, |
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47 DMusicMidiPlaySong, |
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48 DMusicMidiStopSong, |
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49 DMusicMidiIsSongPlaying, |
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50 DMusicMidiSetVolume, |
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51 }; |
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52 |
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53 extern bool LoadMIDI (char *directory, char *filename); |
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54 extern bool InitDirectMusic (void); |
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55 extern void ReleaseSegment (void); |
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56 extern void ShutdownDirectMusic (void); |
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57 extern bool LoadMIDI (char *directory, char *filename); |
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58 extern void PlaySegment (void); |
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59 extern void StopSegment (void); |
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60 extern bool IsSegmentPlaying (void); |
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61 extern void SetVolume (long); |
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62 |
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63 static bool seeking = false; |
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64 |
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65 static const char * DMusicMidiStart(const char * const *parm) |
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66 { |
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67 return InitDirectMusic() ? NULL : "Unable to initialize DirectMusic"; |
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68 } |
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69 |
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70 static void DMusicMidiStop(void) |
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71 { |
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72 StopSegment(); |
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73 } |
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74 |
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75 static void DMusicMidiPlaySong(const char *filename) |
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76 { |
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77 char *pos; |
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78 char dir[MAX_PATH]; |
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79 char file[MAX_PATH]; |
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80 |
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81 // split full path into directory and file components |
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82 ttd_strlcpy(dir, filename, MAX_PATH); |
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83 pos = strrchr(dir, '\\') + 1; |
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84 ttd_strlcpy(file, pos, MAX_PATH); |
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85 *pos = '\0'; |
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86 |
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87 LoadMIDI(dir, file); |
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88 PlaySegment(); |
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89 seeking = true; |
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90 } |
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91 |
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92 static void DMusicMidiStopSong(void) |
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93 { |
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94 StopSegment(); |
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95 } |
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96 |
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97 static bool DMusicMidiIsSongPlaying(void) |
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98 { |
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99 /* Not the nicest code, but there is a short delay before playing actually |
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100 * starts. OpenTTD makes no provision for this. */ |
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101 if (!IsSegmentPlaying() && seeking) return true; |
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102 if (IsSegmentPlaying()) seeking = false; |
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103 |
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104 return IsSegmentPlaying(); |
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105 } |
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106 |
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107 static void DMusicMidiSetVolume(byte vol) |
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108 { |
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109 SetVolume(vol); |
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110 } |
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111 |
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112 #endif /* WIN32_ENABLE_DIRECTMUSIC_SUPPORT */ |