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This commit is contained in:
simon.kagstrom 2009-01-06 08:50:00 +00:00
parent 1ff938c50c
commit 528afcc6e4
1 changed files with 21 additions and 22 deletions
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43
Src/SID_linux.i
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@ -94,32 +94,31 @@ void DigitalRenderer::Resume(void)
void DigitalRenderer::EmulateLine(void)
{
static int divisor = 0;
static int to_output = 0;
static int buffer_pos = 0;
static int divisor = 0;
static int to_output = 0;
if (!ready)
return;
if (!ready)
return;
sample_buf[sample_in_ptr] = volume;
sample_in_ptr = (sample_in_ptr + 1) % SAMPLE_BUF_SIZE;
/*
* Now see how many samples have to be added for this line
*/
divisor += SAMPLE_FREQ;
while (divisor >= 0)
divisor -= TOTAL_RASTERS*SCREEN_FREQ, to_output++;
/*
* Now see how many samples have to be added for this line
*/
divisor += SAMPLE_FREQ;
while (divisor >= 0)
divisor -= TOTAL_RASTERS*SCREEN_FREQ, to_output++;
/*
* Calculate the sound data only when we have enough to fill
* the buffer entirely.
*/
if ((buffer_pos + to_output) >= sndbufsize) {
int datalen = sndbufsize - buffer_pos;
to_output -= datalen;
calc_buffer(sound_buffer + buffer_pos, datalen*2);
write(devfd, sound_buffer, sndbufsize*2);
buffer_pos = 0;
}
/*
* Calculate the sound data only when we have enough to fill
* the buffer entirely.
*/
if (to_output >= sndbufsize) {
int datalen = sndbufsize;
to_output -= datalen;
calc_buffer(sound_buffer, datalen * 2);
write(devfd, sound_buffer, sndbufsize*2);
}
}