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Update zsm pcm

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This commit is contained in:
Zachary Hall 2024-10-15 15:28:59 -07:00
parent de0422de20
commit 7ee0551c05
1 changed files with 17 additions and 15 deletions
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32
backends/playback/zsm/zsm_backend.hpp
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@ -86,21 +86,23 @@ class ZsmBackend : public PlaybackBackend {
void audio_step(size_t samples) { void audio_step(size_t samples) {
if (samples == 0) return; if (samples == 0) return;
while (pcm_fifo_avail() < samples && remain > 0) { while (pcm_fifo_avail() < samples && remain > 0) {
if (pcm_read_rate() == 0) break; if (pcm_read_rate() == 0) break;
remain--; remain--;
size_t oldpos = file->get_pos(); if (remain == 0) {
file->seek((cur++), SeekType::SET); if (islooped) {
uint8_t sample; cur = loop;
file->read(&sample, 1, 1); remain = loop_rem;
pcm_write_fifo(sample); } else {
if (remain == 0) { break;
if (islooped) { }
cur = loop; }
remain = loop_rem; size_t oldpos = file->get_pos();
} file->seek((cur++), SeekType::SET);
} uint8_t sample;
file->seek(oldpos, SeekType::SET); file->read(&sample, 1, 1);
} pcm_write_fifo(sample);
file->seek(oldpos, SeekType::SET);
}
samples *= 2; samples *= 2;
int16_t *psg_ptr = psg_buf.get_item_sized<int16_t>(samples); int16_t *psg_ptr = psg_buf.get_item_sized<int16_t>(samples);
int16_t *pcm_ptr = pcm_buf.get_item_sized<int16_t>(samples); int16_t *pcm_ptr = pcm_buf.get_item_sized<int16_t>(samples);