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force waveform images to be least 1px wide

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This commit is contained in:
Robin Gareus 2016-02-28 18:07:46 +01:00
parent 0ac1ae0d0e
commit 49148b627c
1 changed files with 1 additions and 1 deletions
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libs/canvas/wave_view.cc
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@ -985,7 +985,7 @@ WaveView::generate_image (boost::shared_ptr<WaveViewThreadRequest> req, bool in_
framepos_t sample_start = max (_region_start, (center - image_samples));
framepos_t sample_end = min (center + image_samples, region_end());
const int n_peaks = llrintf ((sample_end - sample_start)/ (req->samples_per_pixel));
const int n_peaks = std::max (1LL, llrint (ceil ((sample_end - sample_start) / (req->samples_per_pixel))));
assert (n_peaks > 0 && n_peaks < 32767);