Added a setting (enabled by default) that keeps the module previews in memory forever. This makes it so that module previews aren't cleared out of memory when they have not been rendered for >60 frames making the module browser much more responsive at the cost of memory.

include/settings.hpp

@@ -29,6 +29,7 @@ extern float cableOpacity;
 extern float cableTension;
 extern bool allowCursorLock;
 extern bool realTime;
+extern bool keepPreviews;
 extern float sampleRate;
 extern int threadCount;
 extern bool paramTooltip;

src/app/ModuleBrowser.cpp

@@ -192,7 +192,7 @@ struct ModelBox : widget::OpaqueWidget {
 	}
 
 	void step() override {
-		if (previewFb && ++visibleFrames >= 60) {
+		if (!settings::keepPreviews && previewFb && ++visibleFrames >= 60) {
 			deletePreview();
 		}
 		OpaqueWidget::step();

src/settings.cpp

@@ -24,6 +24,7 @@ float cableOpacity = 0.5;
 float cableTension = 0.5;
 bool allowCursorLock = true;
 bool realTime = false;
+bool keepPreviews = true;
 float sampleRate = 44100.0;
 int threadCount = 1;
 bool paramTooltip = false;
@@ -65,6 +66,8 @@ json_t *toJson() {
 
 	json_object_set_new(rootJ, "realTime", json_boolean(realTime));
 
+	json_object_set_new(rootJ, "keepPreviews", json_boolean(keepPreviews));
+
 	json_object_set_new(rootJ, "sampleRate", json_real(sampleRate));
 
 	json_object_set_new(rootJ, "threadCount", json_integer(threadCount));
@@ -140,6 +143,10 @@ void fromJson(json_t *rootJ) {
 	if (realTimeJ)
 		realTime = json_boolean_value(realTimeJ);
 
+	json_t *keepPreviewsJ = json_object_get(rootJ, "keepPreviews");
+	if (keepPreviewsJ)
+		keepPreviews = json_boolean_value(keepPreviewsJ);
+
 	json_t *sampleRateJ = json_object_get(rootJ, "sampleRate");
 	if (sampleRateJ)
 		sampleRate = json_number_value(sampleRateJ);