dxx-rebirth/arch/sdl/digi_mixer_music.c

128 lines
2.7 KiB
C

/*
* This is an alternate backend for the music system.
* It uses SDL_mixer to provide a more reliable playback,
* and allow processing of multiple audio formats.
*
* -- MD2211 (2006-04-24)
*/
#include <SDL/SDL.h>
#include <SDL/SDL_mixer.h>
#include <string.h>
#include <stdlib.h>
#include "args.h"
#include "hmp.h"
#include "digi_mixer_music.h"
#include "cfile.h"
#include "u_mem.h"
Mix_Music *current_music = NULL;
/*
* Plays a music file from an absolute path
*/
int mix_play_file(char *filename, int loop, void (*hook_finished_track)())
{
SDL_RWops *rw = NULL;
PHYSFS_file *filehandle = NULL;
char tmp_file[PATH_MAX], real_filename[PATH_MAX];
char *basedir = "music", *fptr, *buf = NULL;
int bufsize = 0;
mix_free_music(); // stop and free what we're already playing, if anything
fptr = strrchr(filename, '.');
if (fptr == NULL)
return 0;
snprintf(tmp_file, sizeof(char)*(strlen(filename)+1), filename);
// It's a .hmp. Convert to mid, store ind music/ and pass the new filename.
if (!stricmp(fptr, ".hmp"))
{
strcpy(tmp_file+strlen(tmp_file)-4,".mid");
if (!PHYSFS_isDirectory(basedir))
PHYSFS_mkdir(basedir);
snprintf(real_filename, strlen(basedir)+strlen(tmp_file)+6, "%s/%s", basedir, tmp_file);
hmp2mid(filename, real_filename);
}
else
{
snprintf(real_filename, sizeof(char)*(strlen(filename)+1), filename);
}
loop = loop ? -1 : 1; // loop means loop infinitely, otherwise play once
// try loading music via given filename
current_music = Mix_LoadMUS(real_filename);
// no luck. so either it's in an archive or Searchpath
if (!current_music)
filehandle = PHYSFS_openRead(real_filename);
if (filehandle != NULL)
{
buf = realloc(buf, sizeof(char *)*PHYSFS_fileLength(filehandle));
bufsize = PHYSFS_read(filehandle, buf, sizeof(char), PHYSFS_fileLength(filehandle));
rw = SDL_RWFromConstMem(buf,bufsize*sizeof(char));
PHYSFS_close(filehandle);
current_music = Mix_LoadMUS_RW(rw);
}
if (current_music)
{
Mix_PlayMusic(current_music, loop);
Mix_HookMusicFinished(hook_finished_track ? hook_finished_track : mix_free_music);
return 1;
}
else
{
con_printf(CON_CRITICAL,"Music %s could not be loaded\n", real_filename);
Mix_HaltMusic();
}
return 0;
}
// What to do when stopping song playback
void mix_free_music()
{
Mix_HaltMusic();
if (current_music)
{
Mix_FreeMusic(current_music);
current_music = NULL;
}
}
void mix_set_music_volume(int vol)
{
Mix_VolumeMusic(vol);
}
void mix_stop_music()
{
Mix_HaltMusic();
}
void mix_pause_music()
{
Mix_PauseMusic();
}
void mix_resume_music()
{
Mix_ResumeMusic();
}
void mix_pause_resume_music()
{
if (Mix_PausedMusic())
Mix_ResumeMusic();
else if (Mix_PlayingMusic())
Mix_PauseMusic();
}