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Added GME for GetMusicLength, SetMusicPosition, GetMusicPosition

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* Misc fixes
This commit is contained in:
mazmazz 2018-08-18 16:21:28 -04:00
parent f4a574aba2
commit 3c2f7038d0
1 changed files with 85 additions and 7 deletions
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92
src/sdl/mixer_sound.c
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@ -311,6 +311,7 @@ void *I_GetSfx(sfxinfo_t *sfx)
len = (info->play_length * 441 / 10) << 2;
mem = Z_Malloc(len, PU_SOUND, NULL);
gme_play(emu, len >> 1, mem);
gme_free_info(info);
gme_delete(emu);
return Mix_QuickLoad_RAW((Uint8 *)mem, len);
@ -383,6 +384,7 @@ void *I_GetSfx(sfxinfo_t *sfx)
len = (info->play_length * 441 / 10) << 2;
mem = Z_Malloc(len, PU_SOUND, NULL);
gme_play(emu, len >> 1, mem);
gme_free_info(info);
gme_delete(emu);
return Mix_QuickLoad_RAW((Uint8 *)mem, len);
@ -863,12 +865,40 @@ boolean I_SetSongSpeed(float speed)
UINT32 I_GetMusicLength(void)
{
INT32 length;
if (gme)
{
gme_info_t *info;
gme_err_t gme_e = gme_track_info(gme, &info, current_track);
if (gme_e != NULL)
{
CONS_Alert(CONS_ERROR, "GME error: %s\n", gme_e);
length = 0;
}
else
{
// reconstruct info->play_length, from GME source
// we only want intro + 1 loop, not 2
length = info->length;
if (length <= 0)
{
length = info->intro_length + info->loop_length; // intro + 1 loop
if (length <= 0)
length = 150 * 1000; // 2.5 minutes
}
}
gme_free_info(info);
return max(length, 0);
}
else if (midimode || !music)
return 0;
// VERY IMPORTANT to set your LENGTHMS= in your song files, folks!
// SDL mixer can't read music length itself.
if (midimode)
return 0;
UINT32 length = (UINT32)(music_length*1000);
length = (UINT32)(music_length*1000);
if (!length)
CONS_Debug(DBG_BASIC, "Getting music length: music is missing LENGTHMS= in music tag.\n");
return length;
@ -876,13 +906,34 @@ UINT32 I_GetMusicLength(void)
boolean I_SetMusicPosition(UINT32 position)
{
if(midimode || !music)
UINT32 length;
if (gme)
{
// this isn't required technically, but GME thread-locks for a second
// if you seek too high from the counter
length = I_GetMusicLength();
if (length)
position %= length;
SDL_LockAudio();
gme_err_t gme_e = gme_seek(gme, position);
SDL_UnlockAudio();
if (gme_e != NULL)
{
CONS_Alert(CONS_ERROR, "GME error: %s\n", gme_e);
return false;
}
else
return true;
}
else if (midimode || !music)
return false;
// Because SDL mixer can't identify song length, if you have
// a position input greater than the real length, then
// music_bytes becomes inaccurate.
UINT32 length = I_GetMusicLength(); // get it in MS
length = I_GetMusicLength(); // get it in MS
if (length)
position %= length;
@ -898,8 +949,35 @@ boolean I_SetMusicPosition(UINT32 position)
UINT32 I_GetMusicPosition(void)
{
if(midimode)
if (gme)
{
INT32 position = gme_tell(gme);
gme_info_t *info;
gme_err_t gme_e = gme_track_info(gme, &info, current_track);
if (gme_e != NULL)
{
CONS_Alert(CONS_ERROR, "GME error: %s\n", gme_e);
return position;
}
else
{
// adjust position, since GME's counter keeps going past loop
if (info->length > 0)
position %= info->length;
else if (info->intro_length + info->loop_length > 0)
position = ((position - info->intro_length) % info->loop_length) + info->intro_length;
else
position %= 150 * 1000; // 2.5 minutes
}
gme_free_info(info);
return max(position, 0);
}
else if (midimode || !music)
return 0;
return music_bytes/44100.0L*1000.0L/4; //assume 44.1khz
// 4 = byte length for 16-bit samples (AUDIO_S16SYS), stereo (2-channel)
// This is hardcoded in I_StartupSound. Other formats for factor: