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-rw-r--r--source/saw/main.c47
1 files changed, 22 insertions, 25 deletions
diff --git a/source/saw/main.c b/source/saw/main.c
index 7bcc6d7..12b271e 100644
--- a/source/saw/main.c
+++ b/source/saw/main.c
@@ -60,7 +60,7 @@ enum {
#ifdef __EMSCRIPTEN__
BUFFER_SIZE = 1024 * 16,
#else
- BUFFER_SIZE = 1024 * 2,
+ BUFFER_SIZE = 1024 * 8,
#endif
#ifdef __EMSCRIPTEN__
@@ -348,8 +348,14 @@ static void saw_audio_render(void) {
// FIXME
// Improve performance.
- i64 frame_count = (BUFFER_SIZE / CHANNEL_COUNT) -
- saw_playback_lookahead;
+ i64 frame_count = (BUFFER_SIZE / CHANNEL_COUNT);
+
+ if (mtx_lock(&saw_playback_mutex) != thrd_success) {
+ assert(0);
+ return;
+ }
+ frame_count -= saw_playback_lookahead;
+ mtx_unlock(&saw_playback_mutex);
if (frame_count > 0) {
memset(saw_playback_temp, 0,
@@ -362,26 +368,18 @@ static void saw_audio_render(void) {
for (i32 k = 0; k < ROLL_COUNT; k++) {
saw_roll_t *roll = saw_rolls + k;
- if (!roll->enabled ||
- saw_playback_frame + 1 <= roll->time ||
- saw_playback_frame + 1 > roll->time + roll->duration)
+
+ if (!roll->enabled || saw_playback_frame < roll->time ||
+ saw_playback_frame > roll->time + roll->duration)
continue;
- i64 play_frame = roll->loop_duration == 0
- ? saw_playback_frame
- : saw_playback_frame -
- ((saw_playback_frame + 1 -
- roll->time) /
- roll->loop_duration) *
- roll->loop_duration;
+ i64 roll_frame = saw_playback_frame - roll->time;
+ if (roll->loop_duration != 0)
+ roll_frame = roll_frame % roll->loop_duration;
for (i32 i = 0; i < SHEET_SIZE; i++) {
saw_roll_note_t *note = roll->notes + i;
- if (!note->enabled)
- continue;
- i64 note_frame = roll->time + note->time;
- if (play_frame + 1 <= note_frame ||
- play_frame > note_frame)
+ if (!note->enabled || note->time != roll_frame)
continue;
saw_play_voice(saw_tracks + roll->track, roll,
@@ -467,14 +465,13 @@ static void saw_audio_render(void) {
}
#ifndef __EMSCRIPTEN__
- if (frame_count == 0 && !saw_playback_on) {
+ if (frame_count == 0 && !saw_playback_on)
// Sleep for 1/5 of the buffer duration
thrd_sleep(
&(struct timespec) {
.tv_nsec = (200000000ll * BUFFER_SIZE / CHANNEL_COUNT) /
SAMPLE_RATE },
NULL);
- }
#endif
}
@@ -1299,14 +1296,14 @@ static void saw_ui_roll(saw_roll_t *roll, i64 x0, i64 y0, i64 width,
// Loop control
//
{
- i64 x = x0 + pianokey_width + sheet_offset;
- i64 y = frame_height - y0 - height + text_height;
- i64 w = width - pianokey_width - sheet_offset;
- i64 h = header_height / 5;
+ i64 x = x0 + pianokey_width + sheet_offset;
+ i64 y = frame_height - y0 - height + text_height;
+ i64 w = width - pianokey_width - sheet_offset;
+ i64 h = header_height / 5;
+ i64 border = 5;
char repeat[] = "\uf363";
- i64 border = 5;
nvgFontSize(saw_nvg, header_height - border * 2);
nvgFontFaceId(saw_nvg, saw_font_icons);
if (roll->loop_duration == 0)