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Introduce an accurate version of coefficient_to_dB and use it in non speed-critical

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code.  Fixes mantis 2833.


git-svn-id: svn://localhost/ardour2/branches/3.0@5565 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Carl Hetherington 2009-08-22 10:21:39 +00:00
parent 4f3bddf7ef
commit 970a3a7292
8 changed files with 19 additions and 17 deletions
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8
gtk2_ardour/canvas-waveview.c
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@ -646,15 +646,15 @@ gnome_canvas_waveview_ensure_cache (GnomeCanvasWaveView *waveview, gulong start_
for (n = 0; n < cache->data_size; ++n) {
if (buf[n].max > 0.0f) {
buf[n].max = alt_log_meter(coefficient_to_dB(buf[n].max));
buf[n].max = alt_log_meter(fast_coefficient_to_dB(buf[n].max));
} else if (buf[n].max < 0.0f) {
buf[n].max = -alt_log_meter(coefficient_to_dB(-buf[n].max));
buf[n].max = -alt_log_meter(fast_coefficient_to_dB(-buf[n].max));
}
if (buf[n].min > 0.0f) {
buf[n].min = alt_log_meter(coefficient_to_dB(buf[n].min));
buf[n].min = alt_log_meter(fast_coefficient_to_dB(buf[n].min));
} else if (buf[n].min < 0.0f) {
buf[n].min = -alt_log_meter(coefficient_to_dB(-buf[n].min));
buf[n].min = -alt_log_meter(fast_coefficient_to_dB(-buf[n].min));
}
}
}