ardour/livetrax
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Adjust the indication of the treshold value by the makup gain.

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When lifting the compressor curve by the makeup gain value the actual
treshold (the level when the curve kinks in) is also lifted. Therefore we need
to adjust the dashed line indicating the threshold as well as the level when
the color gradient to show compression kicks in.
This commit is contained in:
Johannes Mueller 2017-06-19 00:06:10 +02:00 committed by Robin Gareus
parent dff4153024
commit 29df879edd
1 changed files with 8 additions and 6 deletions
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14
libs/plugins/a-comp.lv2/a-comp.c
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@ -588,6 +588,8 @@ render_inline (LV2_Handle instance, uint32_t w, uint32_t max_h)
AComp* self = (AComp*)instance;
uint32_t h = MIN (w, max_h);
const float makeup_thres = self->v_thresdb + self->v_makeup;
if (!self->display || self->w != w || self->h != h) {
if (self->display) cairo_surface_destroy(self->display);
self->display = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, w, h);
@ -626,7 +628,7 @@ render_inline (LV2_Handle instance, uint32_t w, uint32_t max_h)
}
if (self->v_thresdb < 0) {
cairo_set_source_rgba (cr, 0.5, 0.5, 0.5, 1.0);
const float y = -.5 + floorf (h * (self->v_thresdb / -60.f));
const float y = -.5 + floorf (h * (makeup_thres / -60.f));
cairo_set_dash(cr, dash1, 2, 2);
cairo_move_to (cr, 0, y);
cairo_line_to (cr, w, y);
@ -658,16 +660,16 @@ render_inline (LV2_Handle instance, uint32_t w, uint32_t max_h)
// draw signal level & reduction/gradient
const float top = comp_curve (self, 0);
cairo_pattern_t* pat = cairo_pattern_create_linear (0.0, 0.0, 0.0, h);
if (top > self->v_thresdb) {
if (top > makeup_thres) {
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);
}
if (self->v_knee > 0) {
cairo_pattern_add_color_stop_rgba (pat, (self->v_thresdb / -60.f), 0.7, 0.7, 0.2, 0.5);
cairo_pattern_add_color_stop_rgba (pat, ((self->v_thresdb - self->v_knee) / -60.f), 0.5, 0.5, 0.5, 0.5);
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);
} else {
cairo_pattern_add_color_stop_rgba (pat, (self->v_thresdb / -60.f), 0.7, 0.7, 0.2, 0.5);
cairo_pattern_add_color_stop_rgba (pat, ((self->v_thresdb - .01) / -60.f), 0.5, 0.5, 0.5, 0.5);
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, 1.0, 0.5, 0.5, 0.5, 0.5);