transfer audio data

I have no idea why i didn't do this before the audio data is now a transferable buffer instead of a copied float32array
spessasus · May 22, 2024 · 222e0a0 · 222e0a0
1 parent 1330d52
commit 222e0a0
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Showing 4 changed files with 20 additions and 4 deletions.
diff --git a/src/spessasynth_lib/soundfont/chunk/samples.js b/src/spessasynth_lib/soundfont/chunk/samples.js
@@ -351,6 +351,14 @@ export class Sample {
         return audioData;
     }
 
+    /**
+     * forces the sample to load the buffer data again on next getAudioData
+     */
+    pruneCache()
+    {
+        this.isSampleLoaded = false;
+    }
+
     /**
      * @returns {Promise<Float32Array>}
      */

diff --git a/src/spessasynth_lib/synthetizer/worklet_system/worklet_processor.js b/src/spessasynth_lib/synthetizer/worklet_system/worklet_processor.js
@@ -168,7 +168,8 @@ class WorkletProcessor extends AudioWorkletProcessor {
                 break;
 
             case workletMessageType.sampleDump:
-                workletDumpedSamplesList[data.sampleID] = data.sampleData;
+                // new because it's a transferred buffer
+                workletDumpedSamplesList[data.sampleID] = new Float32Array(data.sampleData);
                 // the sample maybe was loaded after the voice was sent... adjust the end position!
 
                 // not for all channels because the system tells us for what channel this voice was dumped! yay!

diff --git a/src/spessasynth_lib/synthetizer/worklet_system/worklet_utilities/worklet_voice.js b/src/spessasynth_lib/synthetizer/worklet_system/worklet_utilities/worklet_voice.js
@@ -113,14 +113,16 @@ dumpSample(channel, sample, id, messagePort)
 
     // load the data
     sample.getAudioData().then(sampleData => {
+        // the audio has been transferred, clear the cache!
+        sample.pruneCache();
         messagePort.postMessage({
             channelNumber: channel,
             messageType: workletMessageType.sampleDump,
             messageData: {
                 sampleID: id,
                 sampleData: sampleData
             }
-        });
+        }, [sampleData.buffer]);
     })
 }
 

diff --git a/src/website/ui/synthesizer_ui/synthetizer_ui.js b/src/website/ui/synthesizer_ui/synthetizer_ui.js
@@ -1,4 +1,9 @@
-import { DEFAULT_GAIN, DEFAULT_PERCUSSION, Synthetizer } from '../../../spessasynth_lib/synthetizer/synthetizer.js'
+import {
+    DEFAULT_GAIN,
+    DEFAULT_PERCUSSION,
+    Synthetizer,
+    VOICE_CAP,
+} from '../../../spessasynth_lib/synthetizer/synthetizer.js'
 import { getDrumsSvg, getLoopSvg, getMuteSvg, getNoteSvg, getVolumeSvg } from '../icons.js'
 import { ShiftableByteArray } from '../../../spessasynth_lib/utils/shiftable_array.js'
 import { Meter } from './synthui_meter.js'
@@ -112,7 +117,7 @@ export class SynthetizerUI
         this.voiceMeter = new Meter("#206",
             "Voices: ",
             0,
-            this.synth.voiceCap,
+             VOICE_CAP,
             "The total amount of voices currently playing");
         this.voiceMeter.bar.classList.add("voice_meter_bar_smooth");