This patch implements a page cache that is invalidated in a LRU fashion.
Pages are added to the cache as soon as they become visible. When the cache is
full and a new page that isn't in the cache becomes visible, the least recently
viewed page in the cache is evicted from memory and the new one takes it's
place.
The cache size is configurable using the page-cache-size configuration
variable, with a default value of 15 pages. Very large values for the cache
size are not recommended, though, as it will stress the system memory out.
The old periodic page reclaiming code is no longer necessary with this patch,
so I removed it.
Special thanks to Ignas Anikevičius, and Sebastian Ramacher for the
inspirations.
Signed-off-by: Sebastian Ramacher <sebastian+dev@ramacher.at>
If option recolor-keephue is true, the recoloring algorithm
only adjusts the lightness of the original color, keeping the
rest of the properties close to the original.
When recolor-keephue is set to false, the recoloring is performed
as it was before, interpolating linearly between recolor-lightcolor
and recolor-darkcolor except for a different weighting for the
lightness which is closer to perception.
Signed-off-by: Sebastian Ramacher <sebastian+dev@ramacher.at>
Add a widget derived from GtkDrawingArea that handles the drawing. It
automaticaly requests rerendering of the page if necessary (i.e on a scroll and
rotate).
This should solve all the rendering issues.
Currently, zathura crashes while performing ':close' command with the
following error:
GThread-ERROR **: file gthread-posix.c: line 226
(g_cond_free_posix_impl): error 'Device or resource busy' during
'pthread_cond_destroy ((pthread_cond_t *) cond)'
The error is because 'render' thread holds condition variable while
waiting for new pages to render. This patch modifies zathura's code to
correctly kill render thread and free allocated resources when the
document is being closed.
NOTE: should be applied on top of "Allow changing of "pages-per-row"
variable at runtime" commit to avoid conflicts in the
'page_view_set_mode()' function.
Signed-off-by: Pavel Borzenkov <pavel.borzenkov@gmail.com>
