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sound code rewrite for lower sample rates (except mp3s)

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@30 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-02-06 22:25:53 +00:00
parent 1cd356a33d
commit 7a93adeb29
9 changed files with 98 additions and 108 deletions
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31
Pico/cd/Pico.c
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@ -131,27 +131,6 @@ static __inline void update_chips(void)
gfx_cd_update();
}
// to be called on 224 or line_sample scanlines only
static __inline void getSamples(int y)
{
if(y == 224) {
//dprintf("sta%i: %i [%i]", (emustatus & 2), emustatus, y);
if(emustatus & 2)
sound_render(PsndLen/2, PsndLen-PsndLen/2);
else sound_render(0, PsndLen);
if (emustatus&1) emustatus|=2; else emustatus&=~2;
if (PicoWriteSound) PicoWriteSound();
// clear sound buffer
sound_clear();
//memset(PsndOut, 0, (PicoOpt & 8) ? (PsndLen<<2) : (PsndLen<<1));
}
else if(emustatus & 3) {
emustatus|= 2;
emustatus&=~1;
sound_render(0, PsndLen/2);
}
}
static int PicoFrameHintsMCD(void)
{
@ -240,10 +219,12 @@ static int PicoFrameHintsMCD(void)
sound_timers_and_dac(y);
// get samples from sound chips
if(y == 32 && PsndOut)
emustatus &= ~1;
else if((y == 224 || y == line_sample) && PsndOut)
getSamples(y);
if (y == 224 && PsndOut) {
int len = sound_render(0, PsndLen);
if (PicoWriteSound) PicoWriteSound(len);
// clear sound buffer
sound_clear();
}
// Run scanline:
//dprintf("m68k starting exec @ %06x", SekPc);