clap

commit 15f0f6a470c2c3a09869a9b51574dc66420325e0
parent 7776ef1e076143b9f9a5c621e88d4f62a70d0f86
Author: Alexandre BIQUE <bique.alexandre@gmail.com>
Date:   Tue,  3 May 2022 22:08:17 +0200

Simplify and add documentation

Diffstat:
M
src/plugin-template.c
 | 
12
+++++++++---

1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/src/plugin-template.c b/src/plugin-template.c
@@ -186,9 +186,10 @@ static clap_process_status my_plug_process(const struct clap_plugin *plugin,
    const uint32_t nframes = process->frames_count;
    const uint32_t nev = process->in_events->size(process->in_events);
    uint32_t       ev_index = 0;
-   uint32_t       next_ev_frame = (nev == 0 ? nframes : 0);
+   uint32_t       next_ev_frame = 0;
 
    for (uint32_t i = 0; i < nframes;) {
+      /* handle every events that happrens at the frame "i" */
       while (ev_index < nev && next_ev_frame == i) {
          const clap_event_header_t *hdr = process->in_events->get(process->in_events, ev_index);
          if (hdr->time != i) {
@@ -198,13 +199,17 @@ static clap_process_status my_plug_process(const struct clap_plugin *plugin,
 
          my_plug_process_event(plug, hdr);
          ++ev_index;
+
          if (ev_index == nev) {
+            // we reached the end of the event list
             next_ev_frame = nframes;
+            break;
          }
       }
 
-      const uint32_t until_frame = next_ev_frame < nframes ? next_ev_frame : nframes;
-      for (; i < until_frame; ++i) {
+      /* process every samples until the next event */
+      for (; i < next_ev_frame; ++i) {
+         // fetch input samples
          const float in_l = process->audio_inputs[0].data32[0][i];
          const float in_r = process->audio_inputs[0].data32[1][i];
 
@@ -212,6 +217,7 @@ static clap_process_status my_plug_process(const struct clap_plugin *plugin,
          const float out_l = in_r;
          const float out_r = in_l;
 
+         // store output samples
          process->audio_outputs[0].data32[0][i] = out_l;
          process->audio_outputs[0].data32[1][i] = out_r;
       }