display waveform polarity correctly
* cairo's Y axis points downward -> invert phase display * fix logarithmic view for value.max < 0
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@ -444,7 +444,7 @@ WaveView::CacheEntry::image ()
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if (y > 0.0) {
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context->line_to (i + 0.5, position (alt_log_meter (fast_coefficient_to_dB (y))));
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} else if (y < 0.0) {
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context->line_to (i + 0.5, position (alt_log_meter (fast_coefficient_to_dB (-y))));
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context->line_to (i + 0.5, position (-alt_log_meter (fast_coefficient_to_dB (-y))));
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} else {
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context->line_to (i + 0.5, position (0.0));
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}
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@ -559,7 +559,7 @@ WaveView::CacheEntry::position (double s) const
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default:
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break;
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}
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return (s+1.0) * (_wave_view->_height / 2.0);
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return (1.0-s) * (_wave_view->_height / 2.0);
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}
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void
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