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Commit Graph

43 Commits

Author SHA1 Message Date
8ed33f1bc7 remove use of hardcoded -fPIC compiler flag, and use compiler flag dict instead 2018-10-14 22:06:11 -04:00
644a05f60b use new Canvas::Note object for (sustained) note display 2018-07-03 11:21:53 -04:00
beb73edf55 Purify libcanvas, remove libardour dependency
A canvas is just a canvas. Move WaveView into its own library.
2017-07-17 21:06:04 +02:00
601c317d70 Clean up library inheritance (colors.h, utils.h)
make libwidget independent of libcanvas.
Confine basics to pbd and gtkmm2ext.
2017-07-17 21:06:04 +02:00
6e91ee071c Reimplementation of large parts of the WaveView class
The drawing itself should be unchanged but much of the rest of the
implementation has changed. The WaveViewThreads and WaveViewDrawingThread
classes were added and allow multiple drawing threads.

The Item::prepare_for_render interface is implemented by WaveView to enable
queuing draw requests for the drawing threads to process as soon as the state
change occurs during Editor::visual_changer, which often means the images will
be finished by the time they are needed in WaveView::render. This can
significantly reduce total render time and also flickering caused by images not
being ready for display.

If the drawing thread/s cannot finish the request by the time it is required in
WaveView::render then cancel it and draw the WaveViewImage in the GUI thread if
it is likely it can be completed in the current render pass/frame.  This change
also helps reduce the flickering caused by images not being ready with threaded
rendering, but with several drawing threads, drawing in the GUI thread may not
often occur (unless explicitly requested).

Allow unfinished images to be returned from the cache in
WaveView::prepare_for_render so that new draw requests aren't queued for
duplicate images. This reduces the amount of drawing for instance in
compositions where there are many instances of the same sample/waveform
displayed on the canvas as only a single image should be drawn.

Use a random width within a certain range for
WaveView::optimal_image_width_samples so that image drawing is less likely to
occur at the same time (which will cause a spike in render/draw time and
increase the chance of flickering waveforms).

Move implementations of the private WaveView classes into wave_view_private.h
and wave_view_private.cc source files.

Incorporate a fix for limiting the waveview image size to the cairo image size
limit.

Should hopefully Resolve: #6478
2017-06-26 08:40:47 +10:00
b5e613d453 Move NSGlView into libgtkmm2ext
This allows to re-use the concept with CairoWidget
2017-03-20 04:35:05 +01:00
c371fc5115 Prepare NSView/OpenGL Canvas (to speed up rendering on [mac]OS[X]
This avoids Coregraphics (cairo_quartz_surface..) competely.
The openGL texture bypasses CG's slow argb_image and CGSColorMask
methods.
2017-03-19 22:49:17 +01:00
0d1a083a5d include Canvas::Grid in build script 2017-01-15 12:13:03 +00:00
29b8072555 add canvas-based Meter object 2016-09-27 14:59:32 -05:00
85c1523611 add new Box container for Canvas.
API subject to change and improvement
2016-09-27 14:59:32 -05:00
nick_m
0c7ecc6cbb Tempo ramps - add Canvas::FramedCurve and use it in the tempo marker bar. 2016-05-27 23:38:16 +10:00
ba78359129 prepare for update to waf 1.8
uselib is no longer implicit (inherited by .use). This is still incomplete,
some uselibs for non-linux variants may be missing.

bld.is_defined("HAVE_XXX") also no longer works and will have to be
changed (I think to bld.env["HAVE_XXX"]) in countless places.
2016-02-28 21:16:44 +01:00
73d1de3b75 NOOP, remove trailing whitespace, replace tabs in python scripts 2015-11-29 17:54:31 +01:00
14ffde884f conditionalize background fades depending on whether this is a tracks or other build 2015-06-29 14:18:10 -04:00
26b0201c69 tweak for static library build 2015-06-29 14:18:10 -04:00
e9224a58d1 several changes, major and minor, to improve threaded waveview rendering 2015-06-23 14:26:26 -04:00
0367aa5825 remove cruft (old unused pre-git version files) 2015-01-09 06:11:57 +01:00
318a9edab9 massive reworking of color selection implementation 2014-11-26 18:22:22 +02:00
4260d0ca0e use new canvas colors header as necessary 2014-11-07 14:24:27 -05:00
ae4c4c8f90 add tracking_text.cc to canvas wscript 2014-06-26 15:10:24 -04:00
6a5d805b38 more canvas refactoring.
Remove Canvas::Layout, use Canvas::Container for the same purpose, move child-rendering into Item::render_children() so that it
could theoretically be used by any derived type.
2014-06-22 11:41:05 -04:00
a8bd6ecc4f refactor Canvas so that all Items have children; add Container abstract base class; rename Group as "Layout" and retain only drawing semantics 2014-06-21 11:43:42 -04:00
23d7893910 remove drag handle canvas object - it was just a stupid unfinished experiment 2014-06-12 10:40:43 -04:00
f5fc4a6b09 add ruler.cc to canvas wscript 2014-06-11 23:54:28 -04:00
1d354f746a basic, initial structure for canvas widget item 2014-06-05 12:04:42 -04:00
6019f06bdf different approach to independent scrolling, involving ArdourCanvas::ScrollGroup
The idea now is that a scroll group item can be added to the canvas which will causes its children to scroll in either or both
directions (horizontal or vertical). There are few complications: the position() of the ScrollGroup is ambiguous depending
on whether you want it with scroll taken into account or not, so Item::canvas_position() was added, which defaults to
the same value as Item::position() but is overridden by ScrollGroup to return the position independent of scrolling. This
method is used when translating between item/canvas/window coordinate systems.

Note that the basic idea is that we MOVE the scroll group when a scroll happens. This mirrors what happens in the GnomeCanvas,
where Nick Mainsbridge came up with a great idea that allowed unification of the time bar and track canvases.
2014-06-03 16:10:27 -04:00
30f204b90e Canvas: new x-fade drawing, two curve widget 2014-05-29 03:09:57 +02:00
034f3dafd7 Revert "cairo sub-surface prototype & example
This reverts commit c57fcde78c.
and also     commit f1f8f89fcb.
2014-05-28 19:13:25 +02:00
c57fcde78c cairo sub-surface prototype - intermediate flattened group renderer. 2014-05-28 17:38:42 +02:00
1b989a93c2 remove redundant os.path.join() calls when specifying install path as bld.env['LIBDIR'] 2014-04-28 21:18:02 -04:00
058986f77b finish unfinished work at basing all install paths on the program name 2014-04-28 21:11:08 -04:00
560c667ea9 fix compilation of libcanvas so that when built as a shared lib (the default), -DLIBCANVAS_DLL_EXPORTS=1 is not lost 2014-03-01 16:52:08 -05:00
05d7947795 make stateful image canvas item actually compile 2014-02-17 16:05:52 -05:00
5062a00c7d move -fvisibility=hidden to the top of the source tree, and remove its internal use; use libtimecode as a shared lib again 2014-01-12 15:40:47 -05:00
7f83975e7d add drag handle source to wscript 2014-01-02 16:49:11 -05:00
218a4664be add visibility/export control to libcanvas 2013-12-27 16:24:58 -05:00
c37040ef01 expand tabs to spaces in wscript 2013-07-14 19:39:24 +02:00
907e7cd4af part two of ... add Canvas::Arc and derive Canvas::Circle from it 2013-04-18 21:29:13 -04:00
5bb213f53b add Canvas::Circle 2013-04-18 15:47:30 -04:00
84fb0a8dce remove all XML related API from canvas. it may have been useful during development, but it is just a distraction - we will NEVER be saving or restoring canvas state via XML or any kind of serialized state 2013-04-15 21:57:08 -04:00
fe34485907 add new canvas Image item, with somewhat optimized API for asynchronous, threaded rendering directly into an image buffer suitable for use by cairo as a source surface (currently untested) 2013-04-15 21:40:15 -04:00
7caf517b27 add (bezier) curves to canvas, use for automation lines; fix issue with rectangles missing their upper line segment; more cairo canvas fixes 2013-04-11 22:54:12 -04:00
aaea166135 initial commit of hand merging, plus getting "ancient" waf script to work correctly 2013-04-04 00:32:52 -04:00