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1.20 release

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@57 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-02-25 23:04:33 +00:00
parent 860c6322c3
commit 68cba51e20
8 changed files with 93 additions and 53 deletions
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7
Pico/cd/pcm.c
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@ -48,10 +48,11 @@ void pcm_write(unsigned int a, unsigned int d)
void pcm_set_rate(int rate)
{
double step = 31.8 * 1024.0 / (double) rate; // max <4 @ 8000Hz
float step = 31.8 * 1024.0 / (float) rate; // max <4 @ 8000Hz
step *= 256*256/4;
g_rate = (unsigned int) step;
printf("g_rate: %08x\n", g_rate);
if (step - (float) g_rate >= 0.5) g_rate++;
printf("g_rate: %f %08x\n", (double)step, g_rate);
}
@ -82,7 +83,7 @@ void pcm_update(int *buffer, int length, int stereo)
mul_l = ((int)ch->regs[0] * (ch->regs[1] & 0xf)) >> (5+1); // (env * pan) >> 5
mul_r = ((int)ch->regs[0] * (ch->regs[1] >> 4)) >> (5+1);
step = ((unsigned int)(*(unsigned short *)&ch->regs[2]) * g_rate) >> 14; // freq step
// printf("step=%i, cstep=%i, mul_l=%i, mul_r=%i, ch=%i, addr=%x, en=%02x\n",
// fprintf(stderr, "step=%i, cstep=%i, mul_l=%i, mul_r=%i, ch=%i, addr=%x, en=%02x\n",
// *(unsigned short *)&ch->regs[2], step, mul_l, mul_r, i, addr, Pico_mcd->pcm.enabled);
if (!stereo && mul_l < mul_r) mul_l = mul_r;