display level in a-comp display

diff --git a/libs/plugins/a-comp.lv2/a-comp.c b/libs/plugins/a-comp.lv2/a-comp.c
index f3fde7d53de52e0509a0a81ed5f9dec6833669e2..3f78b86d89883026574af9af92062e78e9aa814c 100644 (file)
--- a/libs/plugins/a-comp.lv2/a-comp.c
+++ b/libs/plugins/a-comp.lv2/a-comp.c
@@ -269,13 +269,13 @@ run(LV2_Handle instance, uint32_t n_samples)
                acomp->old_yg = Lyg;
        }
 
-       *(acomp->outlevel) = (max == 0.f) ? -45.f : to_dB(max);
+       *(acomp->outlevel) = (max < 0.0056f) ? -45.f : to_dB(max);
 
 #ifdef LV2_EXTENDED
-       // XXX Lyg is not correct, we need input-level filtered by attack/release
-       if (fabsf (acomp->v_lvl - Lyg) >= 1) { // quantize to 1dB difference
+       const float v_lvl = (max < 0.001f) ? -60.f : to_dB(max);
+       if (fabsf (acomp->v_lvl - v_lvl) >= 1) { // quantize to 1dB difference
                acomp->need_expose = true;
-               acomp->v_lvl = Lyg;
+               acomp->v_lvl = v_lvl;
        }
        if (acomp->need_expose && acomp->queue_draw) {
                acomp->need_expose = false;
@@ -390,8 +390,10 @@ render_inline (LV2_Handle instance, uint32_t w, uint32_t max_h)
        cairo_clip (cr);
 
        // draw signal level
-       const float x = w * (self->v_lvl + 60) / 60.f;
-       cairo_rectangle (cr, 0, 0, x, h);
+       // TODO add a gradient pattern above threshold
+       // maybe cut off at x-position?
+       const float y = h * (self->v_lvl + 60) / 60.f;
+       cairo_rectangle (cr, 0, h - y, w, y);
        cairo_set_source_rgba (cr, 0.5, 0.5, 0.5, 0.5);
        cairo_fill (cr);