1 files changed, 19 insertions, 0 deletions
diff --git a/libs/ardour/ardour/noise.h b/libs/ardour/ardour/noise.h
new file mode 100644
index 0000000000..b06b02399b
--- /dev/null
+++ b/libs/ardour/ardour/noise.h
@@ -0,0 +1,19 @@
+#ifndef NOISE_H
+#define NOISE_H
+
+/* Can be overrriden with any code that produces whitenoise between 0.0f and
+ * 1.0f, eg (random() / (float)RAND_MAX) should be a good source of noise, but
+ * its expensive */
+#ifndef GDITHER_NOISE
+#define GDITHER_NOISE gdither_noise()
+#endif
+
+inline static float gdither_noise()
+{
+    static uint32_t rnd = 23232323;
+    rnd = (rnd * 196314165) + 907633515;
+
+    return rnd * 2.3283064365387e-10f;
+}
+
+#endif