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Author SHA1 Message Date
Daniel van Vugt
93e938e22f background: Make the final monitor texture RGB instead of RGBA
The monitor texture is the final background image. It doesn't need to
have any alpha channel. Cross-fades (which is the process of rendering
*into* the monitor texture) still work just fine.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1665>
2021-01-11 15:08:27 +08:00
Jonas Ådahl
1cc82cf759 background: Use memory management helpers more
https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1496
2020-10-16 16:17:38 +00:00
Jonas Ådahl
eb14da3874 cogl: Turn CoglFramebuffer, CoglOffscreen and CoglOnscreen into GObjects
A first step towards abandoning the CoglObject type system: convert
CoglFramebuffer, CoglOffscreen and CoglOnscreen into GObjects.
CoglFramebuffer is turned into an abstract GObject, while the two others
are currently final. The "winsys" and "platform" are still sprinkled
'void *' in the the non-abstract type instances however.

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1496
2020-10-16 16:17:38 +00:00
Jonas Ådahl
313e3e771c Make meta_* logging utilities not require line break
Unlike g_* logging utilities, the meta_* counterparts behave like odd
printf() functions. Lets change that so they fit better into how logging
is done everywhere else.

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1466
2020-10-08 16:38:41 +02:00
Olivier Fourdan
d0ee02fae7 cleanup: Remove duplicate semicolons in C code
No functional change, it just hurts my eyes when reading the code.

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1385
2020-07-28 10:32:46 +02:00
Daniel van Vugt
7a0bc5af7f background: Limit mipmap levels to avoid loss of visible detail
When the wallpaper image is larger than the monitor resolution we already
use mipmapping to scale it down smoothly in hardware. We use
`GL_TEXTURE_MIN_FILTER` = `GL_LINEAR_MIPMAP_LINEAR` for the highest quality
scaling that GL can do. However that option is designed for 3D use cases
where the mipmap level is changing over time or space.

Since our wallpaper is not changing distance from us we can improve the
rendering quality even more than `GL_LINEAR_MIPMAP_LINEAR`. To do this we
now set `GL_TEXTURE_MAX_LEVEL` (if available) to limit the mipmap level or
blurriness level to the lowest resolution (highest level) that is still
equal to or higher than the monitor itself. This way we get the benefits
of mipmapping (downscaling in hardware) *and* retain the maximum possible
sharpness for the monitor resolution -- something that
`GL_LINEAR_MIPMAP_LINEAR` alone doesn't do.

Example:

  Monitor is 1920x1080
  Wallpaper photo is 4000x3000
  Mipmaps stored on the GPU are 4000x3000, 2000x1500, 1000x750, ...

  Before: You would see an average of the 2000x1500 and 1000x750 images.
  After:  You will now only see the 2000x1500 image, linearly sampled.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/1003
2020-05-13 09:37:31 +00:00
Daniel van Vugt
76240e24f7 background: Scale monitor_area after texture creation
Scaling the `monitor_area` before texture creation was just wasting
megabytes of memory on resolution that the monitor can't display. This
was also hurting runtime performance.

Example:

  Monitor is natively 1920x1080 and scale set to 3.

  Before: The monitor texture allocated was 5760x3250x4 = 74.6 MB
  After:  The monitor texture allocated is  1920x1080x4 =  8.3 MB

Closes: https://gitlab.gnome.org/GNOME/gnome-shell/issues/2118

https://gitlab.gnome.org/GNOME/mutter/merge_requests/1004
2020-02-04 19:48:01 +00:00
Corentin Noël
5582d7b3be background: set_file accepts NULL files
https://gitlab.gnome.org/GNOME/mutter/merge_requests/941
2019-11-22 22:13:35 +00:00
Daniel van Vugt
a5265365dd background: Reload when GPU memory is invalidated
Fixes corrupt background wallpaper when resuming from suspend on the
Nvidia driver.

Closes: https://gitlab.gnome.org/GNOME/gnome-shell/issues/1084

https://gitlab.gnome.org/GNOME/mutter/merge_requests/600
2019-07-16 16:24:41 +08:00
Niels De Graef
70bacb9402 cogl: Remove CoglError wrapper
CoglError was added at a certain point to remove the hard dependency on
GLib, but since this can't be avoided inside mutter, let's remove this
whole abstraction.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/631
2019-06-20 18:25:04 +02:00
Daniel van Vugt
d15e11bfe7 background: Shrink wallpaper using LINEAR_MIPMAP_LINEAR
Commit 8e9184b6 added filtering to avoid image jaggies when downscaling
but used `LINEAR_MIPMAP_NEAREST`. In some situations this could lead to
GL choosing a single lower resolution mipmap and then upscaling it, hence
slightly blurry.

We don't want to revert that change since it avoids aliasing jaggies, so
let's use `LINEAR_MIPMAP_LINEAR` instead. This provides the highest quality
filtering that GL can do and avoids the situation of GL using a single
mipmap that's lower resolution than the screen. Now it will blend that one
with the next mipmap which is higher resolution than the screen. This still
avoids jaggies but also maintains 1px resolution.

Closes: https://gitlab.gnome.org/GNOME/gnome-shell/issues/1105
https://gitlab.gnome.org/GNOME/mutter/merge_requests/505
2019-03-26 11:38:52 +08:00
Marco Trevisan (Treviño)
3512647419 background: Use monitor scale to generate the texture at real monitor size
We need to use pixel size of the monitor in order to generate a valid
texture with full quality for current monitor

In spanned case the background should cover all the differently scaled monitors
thus we scale the texture up to the maximum scaling level and then we resample
it drawing only each side in the monitor it should occupy using the proper
scaling level.

In wallpaper mode (or color mode) for example we don't need to scale the area,
also the texture size we return should be unscaled, not to confuse
MetaBackgroundActor making it use more space than needed.

https://bugzilla.gnome.org/show_bug.cgi?id=765011
2019-03-01 17:46:49 +00:00
Niels De Graef
1c6ea5d1db Use a consistent style for enum braces
https://gitlab.gnome.org/GNOME/mutter/merge_requests/361
2019-02-28 09:31:01 +01:00
Florian Müllner
d5a7bbd094 Fix builds with G_DISABLE_ASSERT
Commit 25f416c13d added additional compilation warnings, including
-Werror=return-type. There are several places where this results
in build failures if `g_assert_not_reached()` is disabled at compile
time and the compiler misses a return value.

https://gitlab.gnome.org/GNOME/mutter/issues/447
2019-01-25 09:43:06 +01:00
Niels De Graef
d539fe28d5 Use G_DECLARE_DERIVABLE/FINAL_TYPE on some types
This is only for types in the `Meta` namespace.

* Clears up a lot of boilerplate
* We get `g_autoptr` support for free
2018-12-21 19:48:50 +00:00
Daniel van Vugt
8e9184b62e background: Mipmap wallpaper when shrinking
So as to minimize jaggies for wallpaper that is >= double the resolution
of the screen.

Closes: https://gitlab.gnome.org/GNOME/gnome-shell/issues/254
2018-12-12 12:30:10 +08:00
Jonas Ådahl
2f4a68c8c3 Clean up include macros mess
The order and way include macros were structured was chaotic, with no
real common thread between files. Try to tidy up the mess with some
common scheme, to make things look less messy.
2018-11-06 17:17:36 +01:00
Florian Müllner
c403785d36 Stop using g_type_class_add_private()
It is now deprecated in favor of the G_ADD_PRIVATE() macro (usually
called via G_DEFINE_WITH_PRIVATE()).

https://gitlab.gnome.org/GNOME/mutter/merge_requests/176
2018-07-31 23:40:01 +02:00
Armin Krezović
e8171ccdc1 Use MetaMonitorManager insted of MetaDisplay where possible
This drops display's monitors-changed signal and makes all
the code rely on MetaMonitorManager.

https://bugzilla.gnome.org/show_bug.cgi?id=759538
2018-07-06 19:47:17 +02:00
Armin Krezović
1d5e37050d Stop using MetaScreen where it is unnecessary
https://bugzilla.gnome.org/show_bug.cgi?id=759538
2018-07-06 19:47:16 +02:00
Armin Krezović
e1c67a1824 Move monitor management API to MetaDisplay
This includes changing various users to use MetaDisplay directly, who
used MetaScreen only for this before.

https://bugzilla.gnome.org/show_bug.cgi?id=759538
2018-07-06 19:47:16 +02:00
Armin Krezović
cd8f4259be Move screen size and cursor setting to MetaDisplay
Split X11 specific parts into MetaX11Display. This also required
changing MetaScreen to stop listening to any signals by itself, but
instead relying on MetaDisplay forwarding them. This was to ensure the
ordering. MetaDisplay listens to both the internal and external
monitors-changed signal so that it can pass the external one via the
redundant MetaDisplay(prev MetaScreen)::monitors-changed.

https://bugzilla.gnome.org/show_bug.cgi?id=759538
2018-07-06 19:47:16 +02:00
Carlos Garnacho
c2fad2dc7c compositor: Keep reference to the screen on the MetaBackground
This is not a leak per se, but it seems too easy to make valgrind
SIGSEGV due to MetaBackground disconnecting signals from an already
destroyed MetaScreen when trying to SIGTERM gnome-shell. Keeping a
reference fixes this.

https://bugzilla.gnome.org/show_bug.cgi?id=789984
2017-11-06 20:51:58 +01:00
Jonas Ådahl
dd1eaeb262 Use correct cogl object types
Use the correct pointer types for cogl objects. This avoids warnings
when including the cogl headers doesn't result in all the cogl types
being typedefs to void.

https://bugzilla.gnome.org/show_bug.cgi?id=768976
2016-07-20 14:23:48 +08:00
Rui Matos
53993ba4d2 MetaBackground: invalidate contents on video memory purged errors
We use FBOs so we need to cause them to be recreated.

https://bugzilla.gnome.org/show_bug.cgi?id=739178
2016-06-27 20:23:50 +02:00
Florian Müllner
8842bdfb11 Do not skip CoglError parameters
While CoglError is a define to GError, it doesn't follow the convention
of ignoring errors when NULL is passed, but rather treats the error as
fatal :-(
That's clearly unwanted for a compositor, so make sure to always pass
an error parameter where a runtime error is possible (i.e. any CoglError
that is not a malformed blend string).

https://bugzilla.gnome.org/show_bug.cgi?id=765058
2016-04-15 17:22:24 +02:00
Ting-Wei Lan
0aa4c4d43e build: Fix return value in meta-background.c
https://bugzilla.gnome.org/show_bug.cgi?id=754545
2015-09-04 11:47:34 +08:00
Ray Strode
1d56d50fcd background: paint color matte for scaled and centered backgrounds
Some backgrounds don't fully fill the screen.  For those backgrounds
it's important to paint a color behind them to fill in the gaps.

This commit checks whether or not the background image textures take
up the entire monitor, and in the event they don't, draws a color
behind them (such as it would do if the background were
translucent).

https://bugzilla.gnome.org/show_bug.cgi?id=754476
2015-09-03 15:14:15 -04:00
Ray Strode
0ffd4254d9 background: simplify conditional in meta_background_get_texture
meta_background_get_texture only draws the bottom image texture
if
   1) the blend factor leaves the top image translucent
   or
   2) the top image is translucent from alpha

The latter case doesn't actually matter since we're using REPLACE
on the top image texture.

This commit drops the unnecessary check for the second case and
applies demorgans law to the conditional for clarity.

https://bugzilla.gnome.org/show_bug.cgi?id=754476
2015-09-03 15:14:15 -04:00
Rui Matos
7c5fe42835 meta-background: Add a function to refresh all background instances
We need to reload the FBOs under some circumstances, this adds a way
to easily do so.

https://bugzilla.gnome.org/show_bug.cgi?id=739178
2015-03-25 11:48:32 +01:00
Cosimo Cecchi
a37f632b1b background: use GFiles instead of filenames
We want to use GResources for system backgrounds, so move this to a
GFile.

https://bugzilla.gnome.org/show_bug.cgi?id=736936
2014-10-14 18:54:36 -07:00
Owen W. Taylor
458953268b MetaBackground: fix getting stuck in a bad state after monitor changes
After the ::monitors-changed signal, set the dirty flag on each new
monitor information struct so the per-monitor resources will be
recreated.
2014-09-12 14:59:20 -04:00
Owen W. Taylor
e27bbdc769 Fix colors for horizontal background gradients
COGL_PIXEL_FORMAT_RGB_888 is packed 3-bytes per pixel.
2014-09-12 11:00:55 -04:00
Owen W. Taylor
09b46029fa Fix multi-monitor backgrounds
The texture area was meant to be in monitor-relative coordinates, but that
was not consistently followed throughout the code - fix.

https://bugzilla.gnome.org/show_bug.cgi?id=736568
2014-09-12 11:00:55 -04:00
Florian Müllner
9be3e56b70 background: Fix monitor validation in get_texture()
Monitor indexes should be in the range [0, n], not [-1, 0] :-)
2014-09-06 18:22:56 +02:00
Jasper St. Pierre
3ea6424b8f background: Fix meta_background_new
This is used by the default plugin.
2014-09-03 19:55:15 -07:00
Jasper St. Pierre
d4317ba1e4 background: Fix build
These warnings weren't properly working on Owen's machine, so they went
unchecked.
2014-09-03 11:03:17 -07:00
Owen W. Taylor
a4a688ed83 Rewrite background code
The old requirement that multiple MetaBackgroundActor objects be
layered on top of each to produce blended backgrounds resulted in
extremely inefficient drawing since the entire framebuffer had
to be read and written multiple times.

 * Replace the MetaBackground ClutterContent with a plain GObject
   that serves to hold the background parameters and prerender
   textures to be used to draw the background. It handles
   colors, gradients, and blended images, but does not handle
   vignetting

 * Add vignetting to MetaBackgroundActor directly.

 * Add MetaBackgroundImage and MetaBackgroundImageCache to allow
   multiple MetaBackground objects to share the same images

By removing the usage of ClutterContent, the following optimizations
were easy to add:

 Blending is turned off when the actor is fully opaque
 Nearest-neighbour filtering is used when drawing 1:1

The GLSL vignette code is slightly improved to use a vertex shader
snippet for computing the texture coordinate => position in actor
mapping.

https://bugzilla.gnome.org/show_bug.cgi?id=735637
2014-09-03 13:43:40 -04:00
Jasper St. Pierre
b284126d3b background: Don't bother attaching a paint node if the region is empty 2014-08-07 14:59:59 -04:00
Jasper St. Pierre
6858cb261f background-actor: Don't bother clipping to the content box
We already clip to the content box when we go to paint the content.
2014-08-07 14:58:18 -04:00
Jasper St. Pierre
2d6954186e background: Don't render with blending when we don't need to
If we have an opaque background image, then we shouldn't need to blend
against anything for it to work. Turn off blending in this case.
2014-08-07 14:01:14 -04:00
Jasper St. Pierre
d72bf0cd5d compositor: Don't use cogl_texture_new_with_data in the obvious cases
It's a deprecated API that can surprise us. Namely, when the internal
format passed is COGL_PIXEL_FORMAT_ANY, it will *always* allocate an
RGBA8888 pixel format texture, even if we only passed it a RGB format
or even an A8 format.

cogl_texture_2d_new_with_data is the newer, better API and doesn't have
these warts.
2014-08-07 14:01:14 -04:00
Jasper St. Pierre
584460deec background: Merge the code for creating the color texture into here
It's unused anywhere else.
2014-08-07 13:49:16 -04:00
Jasper St. Pierre
e3d5969282 background: Don't bother supporting alpha channels for gradients 2014-08-07 13:39:21 -04:00
Adel Gadllah
37652ca2cf background: Do not assume GLSL is available
Some hardware does not support it causing crashes in cogl during paint.

https://bugzilla.gnome.org/show_bug.cgi?id=733623
2014-07-24 16:51:53 +02:00
Jasper St. Pierre
8373c90cd8 background: Remove load_still_frame
Nothing uses it, and it's incompatible with XWayland anyway.
2014-04-02 12:35:24 -04:00
Andika Triwidada
9b21346427 Changed obsolete FSF postal address into generic URL.
Fix https://bugzilla.gnome.org/show_bug.cgi?id=721517 #2
2014-01-13 11:35:47 -05:00
Giovanni Campagna
7b537d6b8f Fix regression in mutter-wayland translations
Switching meta/util.h to gi18n.h was wrong, mutter is a library
and needs gi18n-lib.h, but that cannot be included from a public
header (since it depends on config.h or command line options),
so split util.h into a public and a private part.

https://bugzilla.gnome.org/show_bug.cgi?id=707897
2013-09-11 16:01:07 +02:00
Adel Gadllah
daba05f6a7 background: Rename visible_region to clip_region
This does better reflect what this region is used for.

https://bugzilla.gnome.org/show_bug.cgi?id=703332
2013-08-29 17:08:57 -04:00
Tim Lunn
ab72352c47 background: don't save pixbuf in user data
https://bugzilla.gnome.org/show_bug.cgi?id=706777
2013-08-27 09:57:06 +02:00