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completely rethink waveform rendering (again)

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There are 3 possible components to draw at each x-axis position: the waveform "line", the zero line and an outline/clip indicator.
We have to decide which of the 3 to draw at each position, pixel by pixel. This makes the rendering less efficient but it is
the only way I can see to do this correctly.
This commit is contained in:
Paul Davis 2014-06-23 14:57:55 -04:00
parent 9dd5e2769b
commit 87cc9f7d4f
2 changed files with 132 additions and 94 deletions
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2
libs/canvas/canvas/wave_view.h
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@ -192,7 +192,7 @@ private:
void get_image (Cairo::RefPtr<Cairo::ImageSurface>& image, framepos_t start, framepos_t end, double& image_offset) const;
ArdourCanvas::Coord y_extent (double) const;
ArdourCanvas::Coord y_extent (double, bool) const;
void draw_image (Cairo::RefPtr<Cairo::ImageSurface>&, ARDOUR::PeakData*, int) const;
};