Show range -60 .. +10 dBFS in acomp's inline display

diff --git a/libs/plugins/a-comp.lv2/a-comp.c b/libs/plugins/a-comp.lv2/a-comp.c
index 41e109842b3f2fa832d5c05537fe76c49c116c3c..6bc245e6da142b1cfd52f8aabf138e0fb0ce3a22 100644 (file)
--- a/libs/plugins/a-comp.lv2/a-comp.c
+++ b/libs/plugins/a-comp.lv2/a-comp.c
@@ -615,9 +615,9 @@ render_inline (LV2_Handle instance, uint32_t w, uint32_t max_h)
        cairo_set_dash(cr, dash2, 2, 2);
        cairo_set_source_rgba (cr, 0.5, 0.5, 0.5, 0.5);
 
-       for (uint32_t d = 1; d < 6; ++d) {
-               const float x = -.5 + floorf (w * (d * 10.f / 60.f));
-               const float y = -.5 + floorf (h * (d * 10.f / 60.f));
+       for (uint32_t d = 1; d < 7; ++d) {
+               const float x = -.5 + floorf (w * (d * 10.f / 70.f));
+               const float y = -.5 + floorf (h * (d * 10.f / 70.f));
 
                cairo_move_to (cr, x, 0);
                cairo_line_to (cr, x, h);
@@ -627,29 +627,42 @@ render_inline (LV2_Handle instance, uint32_t w, uint32_t max_h)
                cairo_line_to (cr, w, y);
                cairo_stroke (cr);
        }
+       cairo_set_source_rgba (cr, 0.5, 0.5, 0.5, 1.0);
+       cairo_set_dash(cr, dash1, 2, 2);
        if (self->v_thresdb < 0) {
-               cairo_set_source_rgba (cr, 0.5, 0.5, 0.5, 1.0);
-               const float y = -.5 + floorf (h * (makeup_thres / -60.f));
-               cairo_set_dash(cr, dash1, 2, 2);
+               const float y = -.5 + floorf (h * ((makeup_thres - 10.f) / -70.f));
                cairo_move_to (cr, 0, y);
                cairo_line_to (cr, w, y);
                cairo_stroke (cr);
-               cairo_move_to (cr, 0, h);
-               cairo_line_to (cr, w, 0);
-               cairo_stroke (cr);
        }
+       // diagonal unity
+       cairo_move_to (cr, 0, h);
+       cairo_line_to (cr, w, 0);
+       cairo_stroke (cr);
        cairo_restore (cr);
 
+       { // 0, 0
+               cairo_set_source_rgba (cr, 0.5, 0.5, 0.5, 0.5);
+               const float x = -.5 + floorf (w * (60.f / 70.f));
+               const float y = -.5 + floorf (h * (10.f / 70.f));
+               cairo_move_to (cr, x, 0);
+               cairo_line_to (cr, x, h);
+               cairo_stroke (cr);
+               cairo_move_to (cr, 0, y);
+               cairo_line_to (cr, w, y);
+               cairo_stroke (cr);
+       }
+
 
        // draw curve
        cairo_set_source_rgba (cr, .8, .8, .8, 1.0);
        cairo_move_to (cr, 0, h);
 
        for (uint32_t x = 0; x < w; ++x) {
-               // plot -60..0  dB
-               const float x_db = 60.f * (-1.f + x / (float)w);
-               const float y_db = comp_curve (self, x_db);
-               const float y = h * (y_db / -60.f);
+               // plot -60..+10  dB
+               const float x_db = 70.f * (-1.f + x / (float)w) + 10.f;
+               const float y_db = comp_curve (self, x_db) - 10.f;
+               const float y = h * (y_db / -70.f);
                cairo_line_to (cr, x, y);
        }
        cairo_stroke_preserve (cr);
@@ -659,23 +672,23 @@ render_inline (LV2_Handle instance, uint32_t w, uint32_t max_h)
        cairo_clip (cr);
 
        // draw signal level & reduction/gradient
-       const float top = comp_curve (self, 0);
+       const float top = comp_curve (self, 0) - 10.f;
        cairo_pattern_t* pat = cairo_pattern_create_linear (0.0, 0.0, 0.0, h);
-       if (top > makeup_thres) {
+       if (top > makeup_thres - 10.f) {
                cairo_pattern_add_color_stop_rgba (pat, 0.0, 0.8, 0.1, 0.1, 0.5);
-               cairo_pattern_add_color_stop_rgba (pat, top / -60.f, 0.8, 0.1, 0.1, 0.5);
+               cairo_pattern_add_color_stop_rgba (pat, top / -70.f, 0.8, 0.1, 0.1, 0.5);
        }
        if (self->v_knee > 0) {
-               cairo_pattern_add_color_stop_rgba (pat, (makeup_thres / -60.f), 0.7, 0.7, 0.2, 0.5);
-               cairo_pattern_add_color_stop_rgba (pat, ((makeup_thres - self->v_knee) / -60.f), 0.5, 0.5, 0.5, 0.5);
+               cairo_pattern_add_color_stop_rgba (pat, ((makeup_thres -10.f) / -70.f), 0.7, 0.7, 0.2, 0.5);
+               cairo_pattern_add_color_stop_rgba (pat, ((makeup_thres - self->v_knee - 10.f) / -70.f), 0.5, 0.5, 0.5, 0.5);
        } else {
-               cairo_pattern_add_color_stop_rgba (pat, (makeup_thres / -60.f), 0.7, 0.7, 0.2, 0.5);
-               cairo_pattern_add_color_stop_rgba (pat, ((makeup_thres - .01) / -60.f), 0.5, 0.5, 0.5, 0.5);
+               cairo_pattern_add_color_stop_rgba (pat, ((makeup_thres - 10.f)/ -70.f), 0.7, 0.7, 0.2, 0.5);
+               cairo_pattern_add_color_stop_rgba (pat, ((makeup_thres - 10.01f) / -70.f), 0.5, 0.5, 0.5, 0.5);
        }
        cairo_pattern_add_color_stop_rgba (pat, 1.0, 0.5, 0.5, 0.5, 0.5);
 
        // maybe cut off at x-position?
-       const float x = w * (self->v_lvl_in + 60) / 60.f;
+       const float x = w * (self->v_lvl_in + 60) / 70.f;
        const float y = x + h*self->v_makeup;
        cairo_rectangle (cr, 0, h - y, x, y);
        if (self->v_ratio > 1.0) {