ardour/livetrax
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Aborted attempt to further optimize the editor-summary. Commented for future generations.

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This commit is contained in:
Ben Loftis 2018-07-14 08:40:07 -05:00
parent 92f480adab
commit 108162c757
1 changed files with 7 additions and 0 deletions
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7
gtk2_ardour/editor_summary.cc
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@ -307,6 +307,13 @@ EditorSummary::render (Cairo::RefPtr<Cairo::Context> const& ctx, cairo_rectangle
void
EditorSummary::render_region (RegionView* r, cairo_t* cr, double y) const
{
/*NOTE: you can optimize this operation by coalescing adjacent regions into a single line stroke.
* In a session with a single track ~1,000 regions, this reduced render time from 14ms to 11 ms.
* However, you lose a lot of visual information. The current method preserves a sense of separation between regions.
* The current method shows the current selection (red regions), which needs to be preserved if this is optimized.
* I think it's not worth it for now, but we might choose to revisit this someday.
*/
uint32_t const c = r->get_fill_color ();
cairo_set_source_rgb (cr, UINT_RGBA_R (c) / 255.0, UINT_RGBA_G (c) / 255.0, UINT_RGBA_B (c) / 255.0);