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unify helix mp3 code, some sound adjustments

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@726 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2009-08-02 19:42:12 +00:00
parent 8af2da7273
commit 9615b3dfde
4 changed files with 67 additions and 151 deletions
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50
gp2x/940ctl.c
View file

@ -405,24 +405,24 @@ int YM2612UpdateOne_940(int *buffer, int length, int stereo, int is_buf_empty)
}
/***********************************************************/
static int mp3_samples_ready = 0, mp3_buffer_offs = 0;
static int mp3_play_bufsel = 0, mp3_job_started = 0;
void mp3_update(int *buffer, int length, int stereo)
{
int length_mp3;
int cdda_on;
// playback was started, track not ended
cdda_on = loaded_mp3 && shared_ctl->mp3_offs < shared_ctl->mp3_len;
if (!cdda_on) return;
if (!(PicoOpt&0x200)) {
if (!(PicoOpt & POPT_EXT_FM)) {
mp3_update_local(buffer, length, stereo);
return;
}
// check if playback was started, track not ended
if (loaded_mp3 == NULL || shared_ctl->mp3_offs >= shared_ctl->mp3_len)
return;
length_mp3 = length;
if (PsndRate == 22050) length_mp3 <<= 1; // mp3s are locked to 44100Hz stereo
else if (PsndRate == 11025) length_mp3 <<= 2; // so make length 44100ish
@ -475,13 +475,15 @@ void mp3_update(int *buffer, int length, int stereo)
}
/***********************************************************/
void mp3_start_play(FILE *f, int pos) // pos is 0-1023
{
int byte_offs = 0;
if (!(PicoOpt&0x800)) { // cdda disabled?
if (!(PicoOpt & POPT_EN_MCD_CDDA) || f == NULL)
return;
if (!(PicoOpt & POPT_EXT_FM)) {
mp3_start_play_local(f, pos);
return;
}
@ -522,31 +524,7 @@ void mp3_start_play(FILE *f, int pos) // pos is 0-1023
mp3_job_started = 0;
shared_ctl->mp3_buffsel = 1; // will change to 0 on first decode
if (PicoOpt & POPT_EXT_FM)
{
add_job_940(JOB940_MP3RESET);
if (CHECK_BUSY(JOB940_MP3RESET)) wait_busy_940(JOB940_MP3RESET);
}
else
mp3_start_local();
add_job_940(JOB940_MP3RESET);
if (CHECK_BUSY(JOB940_MP3RESET)) wait_busy_940(JOB940_MP3RESET);
}
int mp3_get_offset(void)
{
unsigned int offs1024 = 0;
int cdda_on;
cdda_on = (PicoAHW & PAHW_MCD) && (PicoOpt&0x800) && !(Pico_mcd->s68k_regs[0x36] & 1) &&
(Pico_mcd->scd.Status_CDC & 1) && loaded_mp3;
if (cdda_on) {
offs1024 = shared_ctl->mp3_offs << 7;
offs1024 /= shared_ctl->mp3_len >> 3;
}
printf("offs1024=%u (%i/%i)\n", offs1024, shared_ctl->mp3_offs, shared_ctl->mp3_len);
return offs1024;
}

24
gp2x/emu.c
View file

@ -409,6 +409,7 @@ void plat_status_msg_busy_next(const char *msg)
{
plat_status_msg_clear();
pemu_update_display("", msg);
emu_status_msg("");
/* assumption: msg_busy_next gets called only when
* something slow is about to happen */
@ -600,22 +601,26 @@ static void updateSound(int len)
void pemu_sound_start(void)
{
static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;
int target_fps = Pico.m.pal ? 50 : 60;
PsndOut = NULL;
// prepare sound stuff
if (currentConfig.EmuOpt & 4)
if (currentConfig.EmuOpt & EOPT_EN_SOUND)
{
int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;
int target_fps = Pico.m.pal ? 50 : 60;
int snd_excess_add;
if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old ||
((PicoOpt&0x200) && crashed_940)) {
gp2x_soc_t soc;
#define SOUND_RERATE_FLAGS (POPT_EN_FM|POPT_EN_PSG|POPT_EN_STEREO|POPT_EXT_FM|POPT_EN_MCD_CDDA)
if (PsndRate != PsndRate_old || Pico.m.pal != pal_old || ((PicoOpt & POPT_EXT_FM) && crashed_940) ||
((PicoOpt ^ PicoOpt_old) & SOUND_RERATE_FLAGS)) {
PsndRerate(Pico.m.frame_count ? 1 : 0);
}
snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;
snd_excess_add = ((PsndRate - PsndLen * target_fps)<<16) / target_fps;
printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",
PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);
sndout_oss_start(PsndRate, 16, (PicoOpt&8)>>3);
PsndRate, PsndLen, snd_excess_add, is_stereo, Pico.m.pal);
sndout_oss_start(PsndRate, 16, is_stereo);
sndout_oss_setvol(currentConfig.volume, currentConfig.volume);
PicoWriteSound = updateSound;
plat_update_volume(0, 0);
@ -624,6 +629,11 @@ void pemu_sound_start(void)
PsndRate_old = PsndRate;
PicoOpt_old = PicoOpt;
pal_old = Pico.m.pal;
/* Wiz's sound hardware needs more prebuffer */
soc = soc_detect();
if (soc == SOCID_POLLUX)
updateSound(PsndLen);
}
}