Commit Graph

15 Commits

Author SHA1 Message Date
Benjamin Otte
9b29a7a700 pixelcache: Add a warning for an invariant that shouldn't happen
Pixel caches should be unmapped before being freed and unmapping clears
those variables.
2014-04-10 01:53:57 +02:00
Benjamin Otte
2587d4b8e6 pixelcache: Add map/unmap functions
Because GTK does not invalidate windows that aren't mapped, we cannot
update the pixel cache when the window it handles isn't mapped. So we
add API to call when GDK windows get mapped/unmapped.

https://bugzilla.gnome.org/show_bug.cgi?id=726475
2014-04-10 00:16:53 +02:00
Benjamin Otte
2a9d2a966a pixelcache: Split out a function
https://bugzilla.gnome.org/show_bug.cgi?id=726475
2014-04-10 00:16:53 +02:00
Carlos Garnacho
15d7d5b31f pixelcache: check whether cached surface and cairo_t scales match 2014-01-22 17:10:05 +01:00
Alexander Larsson
d07913840a PixelCache: Ensure clean cairo_t state in draw
This adds save/restore calls to the clear-to-transparent call in
the pixel cache, to avoid changing the default color of the
cairo_t. It also removes a call set_operator call that is no longer
necessary (it was trying to manually restore the state).

https://bugzilla.gnome.org/show_bug.cgi?id=721480
2014-01-08 10:48:56 +01:00
Olivier Brunel
fc8be96163 gtkpixelcache: Fix possibly ignoring queued redraw
If a queue_redraw() (invalidating a region, or the whole widget) was
called from the draw() call, it could get ignored if surface_dirty
existed, as it would then be updated, but destroyed right at the end of
the _gtk_pixel_cache_repaint(), leading the next call to
_gtk_pixel_cache_draw() have its call to repaint() be a no-op
(since there's no surface_dirty) and then simply draw from (non
updated) surface.

Signed-off-by: Olivier Brunel <jjk@jjacky.com>

https://bugzilla.gnome.org/show_bug.cgi?id=711545
2013-11-11 23:17:14 -05:00
Bastien Nocera
438cd857c4 all: Add names to timeouts
Add names to every timeout we setup, so it's easier to track their
usage, and debug possible misbehaviour.

https://bugzilla.gnome.org/show_bug.cgi?id=710651
2013-10-23 13:31:18 +02:00
Alexander Larsson
92edb76500 Pixel cache: Add no-pixel-cache debug flag
This is useful for benchmarking comparisons, and to verify if bugs
happend with or without the pixel cache.
2013-09-09 11:07:50 +02:00
Christian Hergert
7fabc94d3c pixelcache: add getter for extra width and height. 2013-09-06 15:57:22 -07:00
Alexander Larsson
2d0bdee075 pixel cache: Allow growing of cache surface
If the new requested surface size is enough larger than the previous
one (but the old is still larger than the absolute minimum),
reallocate it anyway.

This fixes an issue where the text view initially requested a really
small extra size which was then increased but that didn't "take".
2013-08-26 21:17:45 +02:00
Christian Hergert
b1745d68cd pixelcache: allow specifying content type and extra size.
Allow forcing the cairo_content_t of the surface as well as the
amount of extra size to render.

https://bugzilla.gnome.org/show_bug.cgi?id=706728
2013-08-26 21:17:45 +02:00
Alexander Larsson
c9b52d8820 pixel-cache: Refresh pixel cache on window scale factor changes. 2013-07-03 14:34:13 +02:00
Alexander Larsson
8ae7defad5 GtkPixelCache: Free cache if not used in 20 seconds
No need to keep a performance enhancing cache around if its not
actually in use.
2013-05-07 16:40:24 +02:00
Alexander Larsson
dde714386d GtkPixelCache: Add debug feature to track redraws
Each time we redraw we tint it in a different color so that
you can see which regions are redrawn.
2013-05-07 16:34:05 +02:00
Alexander Larsson
30dc399b72 Add GtkPixelCache
GtkPixelCache is a helper utility that lets you implement
faster scrolling of a viewport of a canvas by using an
offscreen pixmap cache.

You call _gtk_pixel_cache_draw with a callback function that
does the drawing, and additionally you specify the size and the
position of the viewport in the widget, and the position and size
of the canvas wrt the viewport. The callback will be called to
draw on an offscreen surface, and the surface will be drawn
on the window. The next time you do the same, any already drawn
pieces of the surface are re-used from the offscreen and need
not be rendered again.

If things inside the canvas change you need to call
_gtk_pixel_cache_invalidate to tell the cache about this.

Some other details:

* The offscreen surface is generally a bit larger than
  the viewport, so scrolling a small amount can often
  be done without redrawing children.
* If the canvas is not larger than the viewport no
  offscreen surface is used.

GtkPixelCache: Make sure we always copy using SOURCE

We were using OVER for the first copy (from source to group surface.

GtkPixelCache: Fix x/y typos

GtkPixelCache: Allow NULL for invalidate region

gtkpixelcache: Use CONTENT_COLOR for solid bg windows
2013-05-07 16:34:05 +02:00