149 lines
3.2 KiB
C
149 lines
3.2 KiB
C
/*
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* This is an alternate backend for the music system.
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* It uses SDL_mixer to provide a more reliable playback,
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* and allow processing of multiple audio formats.
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*
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* -- MD2211 (2006-04-24)
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*/
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#include <SDL/SDL.h>
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#if !(defined(__APPLE__) && defined(__MACH__))
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#include <SDL/SDL_mixer.h>
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#else
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#include <SDL_mixer/SDL_mixer.h>
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#endif
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#include <string.h>
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#include <stdlib.h>
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#include "args.h"
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#include "hmp.h"
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#include "digi_mixer_music.h"
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#include "cfile.h"
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#include "u_mem.h"
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Mix_Music *current_music = NULL;
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static unsigned char *current_music_hndlbuf = NULL;
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/*
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* Plays a music file from an absolute path or a relative path
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*/
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int mix_play_file(char *filename, int loop, void (*hook_finished_track)())
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{
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SDL_RWops *rw = NULL;
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PHYSFS_file *filehandle = NULL;
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char full_path[PATH_MAX];
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char *fptr;
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unsigned int bufsize = 0;
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mix_free_music(); // stop and free what we're already playing, if anything
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fptr = strrchr(filename, '.');
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if (fptr == NULL)
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return 0;
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loop = loop ? -1 : 1; // loop means loop infinitely, otherwise play once
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// It's a .hmp. Convert to midi stream and load to current_music
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if (!stricmp(fptr, ".hmp"))
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{
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hmp2mid(filename, ¤t_music_hndlbuf, &bufsize);
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rw = SDL_RWFromConstMem(current_music_hndlbuf,bufsize*sizeof(char));
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current_music = Mix_LoadMUS_RW(rw);
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}
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// try loading music via given filename
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if (!current_music)
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current_music = Mix_LoadMUS(filename);
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// no luck. so it might be in Searchpath. So try to build absolute path
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if (!current_music)
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{
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PHYSFSX_getRealPath(filename, full_path);
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current_music = Mix_LoadMUS(full_path);
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if (current_music)
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filename = full_path; // used later for possible error reporting
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}
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// still nothin'? Let's open via PhysFS in case it's located inside an archive
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if (!current_music)
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{
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filehandle = PHYSFS_openRead(filename);
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if (filehandle != NULL)
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{
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current_music_hndlbuf = d_realloc(current_music_hndlbuf, sizeof(char *)*PHYSFS_fileLength(filehandle));
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bufsize = PHYSFS_read(filehandle, current_music_hndlbuf, sizeof(char), PHYSFS_fileLength(filehandle));
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rw = SDL_RWFromConstMem(current_music_hndlbuf,bufsize*sizeof(char));
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PHYSFS_close(filehandle);
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current_music = Mix_LoadMUS_RW(rw);
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}
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}
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if (current_music)
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{
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Mix_PlayMusic(current_music, loop);
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Mix_HookMusicFinished(hook_finished_track ? hook_finished_track : mix_free_music);
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return 1;
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}
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else
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{
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con_printf(CON_CRITICAL,"Music %s could not be loaded\n", filename);
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mix_stop_music();
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}
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return 0;
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}
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// What to do when stopping song playback
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void mix_free_music()
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{
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Mix_HaltMusic();
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if (current_music)
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{
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Mix_FreeMusic(current_music);
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current_music = NULL;
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}
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if (current_music_hndlbuf)
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{
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d_free(current_music_hndlbuf);
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current_music_hndlbuf = NULL;
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}
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}
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void mix_set_music_volume(int vol)
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{
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vol *= MIX_MAX_VOLUME/8;
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Mix_VolumeMusic(vol);
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}
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void mix_stop_music()
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{
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Mix_HaltMusic();
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if (current_music_hndlbuf)
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{
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d_free(current_music_hndlbuf);
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current_music_hndlbuf = NULL;
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}
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}
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void mix_pause_music()
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{
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Mix_PauseMusic();
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}
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void mix_resume_music()
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{
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Mix_ResumeMusic();
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}
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void mix_pause_resume_music()
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{
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if (Mix_PausedMusic())
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Mix_ResumeMusic();
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else if (Mix_PlayingMusic())
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Mix_PauseMusic();
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}
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