Finish Cairo surface used for waveform

2020-08-07 15:18:02 -07:00
parent 426162f269
commit 698b2e1842
1 changed files with 1 additions and 0 deletions
--- a/rtgui/histogrampanel.cc
+++ b/rtgui/histogrampanel.cc
@@ -1442,6 +1442,7 @@ void HistogramArea::drawWaveform(Cairo::RefPtr<Cairo::Context> &cr, int w, int h
        cr->set_source(surface, 0, 0);
        cr->set_operator(Cairo::OPERATOR_OVER);
        cr->paint();
+        surface->finish();
    }
    surface = Cairo::ImageSurface::create(
        wave_buffer.get(), Cairo::FORMAT_ARGB32, waveform_width, 256, cairo_stride);