(svn r14632) -Add: support Allegro as midi backend.

This commit is contained in:
rubidium 2008-11-25 23:21:58 +00:00
parent 72124862f0
commit 34ddda1009
5 changed files with 110 additions and 8 deletions

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@ -123,6 +123,7 @@ window.cpp
# Header Files
#if ALLEGRO
music/allegro_m.h
sound/allegro_s.h
video/allegro_v.h
#end
@ -624,6 +625,9 @@ video/null_v.cpp
#end
# Music
#if ALLEGRO
music/allegro_m.cpp
#end
#if DIRECTMUSIC
music/dmusic.cpp
#end

65
src/music/allegro_m.cpp Normal file
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@ -0,0 +1,65 @@
/* $Id$ */
/** @file allegro_m.cpp Playing music via allegro. */
#ifdef WITH_ALLEGRO
#include "../stdafx.h"
#include "../debug.h"
#include "allegro_m.h"
#include <allegro.h>
static FMusicDriver_Allegro iFMusicDriver_Allegro;
static MIDI *_midi = NULL;
/** There are multiple modules that might be using Allegro and
* Allegro can only be initiated once. */
extern int _allegro_instance_count;
const char *MusicDriver_Allegro::Start(const char * const *param)
{
if (_allegro_instance_count == 0 && install_allegro(SYSTEM_AUTODETECT, &errno, NULL)) return NULL;
_allegro_instance_count++;
/* Initialise the sound */
if (install_sound(DIGI_AUTODETECT, MIDI_AUTODETECT, NULL) != 0) return NULL;
/* Okay, there's no soundcard */
if (midi_card == MIDI_NONE) {
DEBUG(driver, 0, "allegro: no midi card found");
}
return NULL;
}
void MusicDriver_Allegro::Stop()
{
if (_midi != NULL) destroy_midi(_midi);
_midi = NULL;
if (--_allegro_instance_count == 0) allegro_exit();
}
void MusicDriver_Allegro::PlaySong(const char *filename)
{
if (_midi != NULL) destroy_midi(_midi);
_midi = load_midi(filename);
play_midi(_midi, false);
}
void MusicDriver_Allegro::StopSong()
{
stop_midi();
}
bool MusicDriver_Allegro::IsSongPlaying()
{
return midi_pos >= 0;
}
void MusicDriver_Allegro::SetVolume(byte vol)
{
set_volume(-1, vol);
}
#endif /* WITH_ALLEGRO */

33
src/music/allegro_m.h Normal file
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@ -0,0 +1,33 @@
/* $Id$ */
/** @file allegro_m.h Base support for playing music via allegro. */
#ifndef MUSIC_ALLEGRO_H
#define MUSIC_ALLEGRO_H
#include "music_driver.hpp"
class MusicDriver_Allegro: public MusicDriver {
public:
/* virtual */ const char *Start(const char * const *param);
/* virtual */ void Stop();
/* virtual */ void PlaySong(const char *filename);
/* virtual */ void StopSong();
/* virtual */ bool IsSongPlaying();
/* virtual */ void SetVolume(byte vol);
};
class FMusicDriver_Allegro: public MusicDriverFactory<FMusicDriver_Allegro> {
public:
static const int priority = 1;
/* virtual */ const char *GetName() { return "allegro"; }
/* virtual */ const char *GetDescription() { return "Allegro MIDI Driver"; }
/* virtual */ Driver *CreateInstance() { return new MusicDriver_Allegro(); }
};
#endif /* MUSIC_ALLEGRO_H */

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@ -40,12 +40,12 @@ void SoundDriver_Allegro::MainLoop()
/** There are multiple modules that might be using Allegro and
* Allegro can only be initiated once. */
extern int _allegro_count;
extern int _allegro_instance_count;
const char *SoundDriver_Allegro::Start(const char * const *parm)
{
if (_allegro_count == 0 && install_allegro(SYSTEM_AUTODETECT, &errno, NULL)) return NULL;
_allegro_count++;
if (_allegro_instance_count == 0 && install_allegro(SYSTEM_AUTODETECT, &errno, NULL)) return NULL;
_allegro_instance_count++;
/* Initialise the sound */
if (install_sound(DIGI_AUTODETECT, MIDI_AUTODETECT, NULL) != 0) return NULL;
@ -68,7 +68,7 @@ void SoundDriver_Allegro::Stop()
}
remove_sound();
if (--_allegro_count == 0) allegro_exit();
if (--_allegro_instance_count == 0) allegro_exit();
}
#endif /* WITH_ALLEGRO */

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@ -376,12 +376,12 @@ static void PollEvent()
/** There are multiple modules that might be using Allegro and
* Allegro can only be initiated once. */
int _allegro_count = 0;
int _allegro_instance_count = 0;
const char *VideoDriver_Allegro::Start(const char * const *parm)
{
if (_allegro_count == 0 && install_allegro(SYSTEM_AUTODETECT, &errno, NULL)) return NULL;
_allegro_count++;
if (_allegro_instance_count == 0 && install_allegro(SYSTEM_AUTODETECT, &errno, NULL)) return NULL;
_allegro_instance_count++;
install_timer();
install_mouse();
@ -396,7 +396,7 @@ const char *VideoDriver_Allegro::Start(const char * const *parm)
void VideoDriver_Allegro::Stop()
{
if (--_allegro_count == 0) allegro_exit();
if (--_allegro_instance_count == 0) allegro_exit();
}
#if defined(UNIX) || defined(__OS2__) || defined(PSP)