X-Git-Url: https://git.sesse.net/?p=nageru;a=blobdiff_plain;f=vumeter.cpp;h=2bf36390206a59a18622d59f205c19769fb81a28;hp=c7f8df467ab3681900205d35fdedbfe115846fbc;hb=54067dbc70999d936adf9d263b5ff2b1efb4dfd0;hpb=92246b3e7e2d914a0549bbc7f90dd07ff3fd103a diff --git a/vumeter.cpp b/vumeter.cpp index c7f8df4..2bf3639 100644 --- a/vumeter.cpp +++ b/vumeter.cpp @@ -19,28 +19,57 @@ void VUMeter::paintEvent(QPaintEvent *event) { QPainter painter(this); - float level_lufs; + float level_lufs[2], peak_lufs[2]; { unique_lock lock(level_mutex); - level_lufs = this->level_lufs; + level_lufs[0] = this->level_lufs[0]; + level_lufs[1] = this->level_lufs[1]; + peak_lufs[0] = this->peak_lufs[0]; + peak_lufs[1] = this->peak_lufs[1]; } - float level_lu = level_lufs - ref_level_lufs; - int on_pos = lrint(lufs_to_pos(level_lu, height())); - QRect off_rect(0, 0, width(), on_pos); - QRect on_rect(0, on_pos, width(), height() - on_pos); + int mid = width() / 2; - painter.drawPixmap(off_rect, off_pixmap, off_rect); - painter.drawPixmap(on_rect, on_pixmap, on_rect); + for (unsigned channel = 0; channel < 2; ++channel) { + int left = (channel == 0) ? 0 : mid; + int right = (channel == 0) ? mid : width(); + float level_lu = level_lufs[channel] - ref_level_lufs; + int on_pos = lrint(lufs_to_pos(level_lu, height())); + + if (flip) { + QRect on_rect(left, 0, right - left, height() - on_pos); + QRect off_rect(left, height() - on_pos, right - left, height()); + + painter.drawPixmap(on_rect, on_pixmap, on_rect); + painter.drawPixmap(off_rect, off_pixmap, off_rect); + } else { + QRect off_rect(left, 0, right - left, on_pos); + QRect on_rect(left, on_pos, right - left, height() - on_pos); + + painter.drawPixmap(off_rect, off_pixmap, off_rect); + painter.drawPixmap(on_rect, on_pixmap, on_rect); + } + + float peak_lu = peak_lufs[channel] - ref_level_lufs; + if (peak_lu >= min_level && peak_lu <= max_level) { + int peak_pos = lrint(lufs_to_pos(peak_lu, height())); + QRect peak_rect(left, peak_pos - 1, right, 2); + painter.drawPixmap(peak_rect, full_on_pixmap, peak_rect); + } + } } void VUMeter::recalculate_pixmaps() { + full_on_pixmap = QPixmap(width(), height()); + QPainter full_on_painter(&full_on_pixmap); + draw_vu_meter(full_on_painter, width(), height(), 0, 0.0, true, min_level, max_level, flip); + on_pixmap = QPixmap(width(), height()); QPainter on_painter(&on_pixmap); - draw_vu_meter(on_painter, width(), height(), 0, true, min_level, max_level); + draw_vu_meter(on_painter, width(), height(), 0, 2.0, true, min_level, max_level, flip); off_pixmap = QPixmap(width(), height()); QPainter off_painter(&off_pixmap); - draw_vu_meter(off_painter, width(), height(), 0, false, min_level, max_level); + draw_vu_meter(off_painter, width(), height(), 0, 2.0, false, min_level, max_level, flip); }