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mutter/src/compositor/meta-background-actor.c

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Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright 2009 Sander Dijkhuis
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
2014-08-10 11:26:14 -04:00
* Copyright 2014 Red Hat, Inc.
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
Changed obsolete FSF postal address into generic URL. Fix https://bugzilla.gnome.org/show_bug.cgi?id=721517 #2
2014-01-11 20:42:06 -05:00
* along with this program; if not, see <http://www.gnu.org/licenses/>.
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
*
* Portions adapted from gnome-shell/src/shell-global.c
*/
Add a meaningful name and description to all sections/files in the API docs https://bugzilla.gnome.org/show_bug.cgi?id=695641
2013-03-11 11:52:36 -04:00
/**
* SECTION:meta-background-actor
* @title: MetaBackgroundActor
* @short_description: Actor for painting the root window background
*
*/
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
2014-08-10 11:26:14 -04:00
/*
* The overall model drawing model of this widget is that we have one
* texture, or two interpolated textures, possibly with alpha or
* margins that let the underlying background show through, blended
* over a solid color or a gradient. The result of that combination
* can then be affected by a "vignette" that darkens the background
* away from a central point (or as a no-GLSL fallback, simply darkens
* the background) and by overall opacity.
*
* As of GNOME 3.14, GNOME is only using a fraction of this when the
* user sets the background through the control center - what can be
* set is:
*
* A single image without a border
* An animation of images without a border that blend together,
* with the blend changing every 4-5 minutes
* A solid color with a repeated noise texture blended over it
*
* This all is pretty easy to do in a fragment shader, except when:
*
* A) We don't have GLSL - in this case, the operation of
* interpolating the two textures and blending the result over the
* background can't be expressed with Cogl's fixed-function layer
* combining (which is confined to what GL's texture environment
* combining can do) So we can only handle the above directly if
* there are no margins or alpha.
*
* B) The image textures are sliced. Texture size limits on older
* hardware (pre-965 intel hardware, r300, etc.) is often 2048,
* and it would be common to use a texture larger than this for a
* background and expect it to be scaled down. Cogl can compensate
* for this by breaking the texture up into multiple textures, but
* can't multitexture with sliced textures. So we can only handle
* the above if there's a single texture.
*
* However, even when we *can* represent everything in a single pass,
* it's not necessarily efficient. If we want to draw a 1024x768
* background, it's pretty inefficient to bilinearly texture from
* two 2560x1440 images and mix that. So the drawing model we take
* here is that MetaBackground generates a single texture (which
* might be a 1x1 texture for a solid color, or a 1x2 texture for a
* gradient, or a repeated texture for wallpaper, or a pre-rendered
* texture the size of the screen), and we draw with that, possibly
* adding the vignette and opacity.
*/
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
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
2014-08-10 11:26:14 -04:00
#include <config.h>
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
Pass CoglContext to cogl_texture_pixmap_x11_new() The experimental Cogl api cogl_texture_pixmap_new() was recently changed so it now expects an explicit CoglContext argument and it can also return exceptions now via a GError. This patch updates mutters use of the api accordingly.
2012-02-21 11:31:53 -05:00
#include <clutter/clutter.h>
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
#include "cogl-utils.h"
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
2014-08-10 11:26:14 -04:00
#include "clutter-utils.h"
Move the installed includes to a subdir If mutter is going to be a "real" library, then it should install its includes so that users can do #include <meta/display.h> rather than #include <display.h> So rename the includedir accordingly, move src/include to src/meta, and fix up all internal references. There were a handful of header files in src/include that were not installed; this appears to have been part of a plan to keep core/, ui/, and compositor/ from looking at each others' private includes, but that wasn't really working anyway. So move all non-installed headers back into core/ or ui/. https://bugzilla.gnome.org/show_bug.cgi?id=643959
2011-03-05 19:29:12 -05:00
#include <meta/errors.h>
MetaBackgroundActor: make it a public class https://bugzilla.gnome.org/show_bug.cgi?id=656433
2011-08-28 21:20:29 -04:00
#include "meta-background-actor-private.h"
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
2014-08-10 11:26:14 -04:00
#include "meta-background-private.h"
cullable: Turn cull_out / reset_culling into a separate interface Instead of hardcoded knowledge of certain classes in MetaWindowGroup, create a generic interface that all actors can implement to get parts of their regions culled out during redraw, without needing any special knowledge of how to handle a specific actor. The names now are a bit suspect. MetaBackgroundGroup is a simple MetaCullable that knows how to cull children, and MetaWindowGroup is the "toplevel" cullable that computes the initial two regions. A future cleanup here could be to merge MetaWindowGroup / MetaBackgroundGroup so that we only have a generic MetaSimpleCullable, and move the "toplevel" cullability to be a MetaCullableToplevel. https://bugzilla.gnome.org/show_bug.cgi?id=714706
2013-11-21 15:25:08 -05:00
#include "meta-cullable.h"
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
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
2014-08-10 11:26:14 -04:00
enum
{
PROP_META_SCREEN = 1,
PROP_MONITOR,
PROP_BACKGROUND,
MetaBackground: add properties to set vignette settings Make the vignette options properties so they can be animated; modify the function-call API for meta_background_actor_set_vignette() to correspond more closely to the 3 properties. https://bugzilla.gnome.org/show_bug.cgi?id=735637
2014-09-02 21:51:10 -04:00
PROP_VIGNETTE,
PROP_VIGNETTE_SHARPNESS,
PROP_BRIGHTNESS
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
2014-08-10 11:26:14 -04:00
};
typedef enum {
CHANGED_BACKGROUND = 1 << 0,
CHANGED_EFFECTS = 1 << 2,
CHANGED_VIGNETTE_PARAMETERS = 1 << 3,
CHANGED_ALL = 0xFFFF
} ChangedFlags;
#define VERTEX_SHADER_DECLARATIONS \
"uniform vec2 scale;\n" \
"uniform vec2 offset;\n" \
"varying vec2 position;\n" \
#define VERTEX_SHADER_CODE \
"position = cogl_tex_coord0_in.xy * scale + offset;\n" \
#define FRAGMENT_SHADER_DECLARATIONS \
"uniform float vignette_sharpness;\n" \
"varying vec2 position;\n" \
#define FRAGMENT_SHADER_CODE \
"float t = 2.0 * length(position);\n" \
"t = min(t, 1.0);\n" \
"float pixel_brightness = 1 - t * vignette_sharpness;\n" \
"cogl_color_out.rgb = cogl_color_out.rgb * pixel_brightness;\n" \
typedef struct _MetaBackgroundLayer MetaBackgroundLayer;
typedef enum {
PIPELINE_VIGNETTE = (1 << 0),
PIPELINE_BLEND = (1 << 1),
} PipelineFlags;
MetaBackgroundActor: make it a public class https://bugzilla.gnome.org/show_bug.cgi?id=656433
2011-08-28 21:20:29 -04:00
struct _MetaBackgroundActorPrivate
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
{
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
2014-08-10 11:26:14 -04:00
MetaScreen *screen;
int monitor;
MetaBackground *background;
gboolean vignette;
MetaBackground: add properties to set vignette settings Make the vignette options properties so they can be animated; modify the function-call API for meta_background_actor_set_vignette() to correspond more closely to the 3 properties. https://bugzilla.gnome.org/show_bug.cgi?id=735637
2014-09-02 21:51:10 -04:00
double brightness;
double vignette_sharpness;
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
2014-08-10 11:26:14 -04:00
ChangedFlags changed;
CoglPipeline *pipeline;
PipelineFlags pipeline_flags;
cairo_rectangle_int_t texture_area;
gboolean force_bilinear;
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
2013-08-27 10:30:39 -04:00
cairo_region_t *clip_region;
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
};
cullable: Turn cull_out / reset_culling into a separate interface Instead of hardcoded knowledge of certain classes in MetaWindowGroup, create a generic interface that all actors can implement to get parts of their regions culled out during redraw, without needing any special knowledge of how to handle a specific actor. The names now are a bit suspect. MetaBackgroundGroup is a simple MetaCullable that knows how to cull children, and MetaWindowGroup is the "toplevel" cullable that computes the initial two regions. A future cleanup here could be to merge MetaWindowGroup / MetaBackgroundGroup so that we only have a generic MetaSimpleCullable, and move the "toplevel" cullability to be a MetaCullableToplevel. https://bugzilla.gnome.org/show_bug.cgi?id=714706
2013-11-21 15:25:08 -05:00
static void cullable_iface_init (MetaCullableInterface *iface);
G_DEFINE_TYPE_WITH_CODE (MetaBackgroundActor, meta_background_actor, CLUTTER_TYPE_ACTOR,
G_IMPLEMENT_INTERFACE (META_TYPE_CULLABLE, cullable_iface_init));
static void
set_clip_region (MetaBackgroundActor *self,
cairo_region_t *clip_region)
{
MetaBackgroundActorPrivate *priv = self->priv;
g_clear_pointer (&priv->clip_region, (GDestroyNotify) cairo_region_destroy);
if (clip_region)
priv->clip_region = cairo_region_copy (clip_region);
}
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
static void
meta_background_actor_dispose (GObject *object)
{
MetaBackgroundActor *self = META_BACKGROUND_ACTOR (object);
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
2014-08-10 11:26:14 -04:00
MetaBackgroundActorPrivate *priv = self->priv;
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
cullable: Turn cull_out / reset_culling into a separate interface Instead of hardcoded knowledge of certain classes in MetaWindowGroup, create a generic interface that all actors can implement to get parts of their regions culled out during redraw, without needing any special knowledge of how to handle a specific actor. The names now are a bit suspect. MetaBackgroundGroup is a simple MetaCullable that knows how to cull children, and MetaWindowGroup is the "toplevel" cullable that computes the initial two regions. A future cleanup here could be to merge MetaWindowGroup / MetaBackgroundGroup so that we only have a generic MetaSimpleCullable, and move the "toplevel" cullability to be a MetaCullableToplevel. https://bugzilla.gnome.org/show_bug.cgi?id=714706
2013-11-21 15:25:08 -05:00
set_clip_region (self, NULL);
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
2014-08-10 11:26:14 -04:00
meta_background_actor_set_background (self, NULL);
if (priv->pipeline)
{
cogl_object_unref (priv->pipeline);
priv->pipeline = NULL;
}
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
meta-background-actor: Chain up in dispose This was preventing Clutter from running its dispose, preventing it from being destroyed correctly. While a major bug and possibly big memory leak, the most obvious effect was the message that Clutter spat out: Clutter-CRITICAL **: clutter_actor_iter_next: assertion `ri->age == ri->root->priv->age' failed Since we never disposed the actor correctly, it was never removed from its parent, and the age wasn't updated correctly.
2012-02-16 15:53:21 -05:00
G_OBJECT_CLASS (meta_background_actor_parent_class)->dispose (object);
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
}
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
2014-08-10 11:26:14 -04:00
static void
get_preferred_size (MetaBackgroundActor *self,
gfloat *width,
gfloat *height)
{
MetaBackgroundActorPrivate *priv = META_BACKGROUND_ACTOR (self)->priv;
MetaRectangle monitor_geometry;
meta_screen_get_monitor_geometry (priv->screen, priv->monitor, &monitor_geometry);
if (width != NULL)
*width = monitor_geometry.width;
if (height != NULL)
*height = monitor_geometry.height;
}
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
static void
meta_background_actor_get_preferred_width (ClutterActor *actor,
gfloat for_height,
gfloat *min_width_p,
gfloat *natural_width_p)
{
compositor: rework how backgrounds are managed Background handling in GNOME is very roundabout at the moment. gnome-settings-daemon uses gnome-desktop to read the background from disk into a screen-sized pixmap. It then sets the XID of that pixmap on the _XROOTPMAP_ID root window property. mutter puts that pixmap into a texture/actor which gnome-shell then uses. Having the gnome-settings-daemon detour from disk to screen means we can't easily let the compositor handle transition effects when switching backgrounds. Also, having the background actor be per-screen instead of per-monitor means we may have oversized textures in certain multihead setups. This commit changes mutter to read backgrounds from disk itself, and it changes backgrounds to be per-monitor. This way background handling/compositing is left to the compositor. https://bugzilla.gnome.org/show_bug.cgi?id=682427
2013-01-23 15:54:41 -05:00
gfloat width;
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
2014-08-10 11:26:14 -04:00
get_preferred_size (META_BACKGROUND_ACTOR (actor), &width, NULL);
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
if (min_width_p)
*min_width_p = width;
if (natural_width_p)
MetaBackgroundActor: fix a typo https://bugzilla.gnome.org/show_bug.cgi?id=657583
2011-08-28 22:03:57 -04:00
*natural_width_p = width;
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
}
static void
meta_background_actor_get_preferred_height (ClutterActor *actor,
gfloat for_width,
gfloat *min_height_p,
gfloat *natural_height_p)
{
compositor: rework how backgrounds are managed Background handling in GNOME is very roundabout at the moment. gnome-settings-daemon uses gnome-desktop to read the background from disk into a screen-sized pixmap. It then sets the XID of that pixmap on the _XROOTPMAP_ID root window property. mutter puts that pixmap into a texture/actor which gnome-shell then uses. Having the gnome-settings-daemon detour from disk to screen means we can't easily let the compositor handle transition effects when switching backgrounds. Also, having the background actor be per-screen instead of per-monitor means we may have oversized textures in certain multihead setups. This commit changes mutter to read backgrounds from disk itself, and it changes backgrounds to be per-monitor. This way background handling/compositing is left to the compositor. https://bugzilla.gnome.org/show_bug.cgi?id=682427
2013-01-23 15:54:41 -05:00
gfloat height;
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
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
2014-08-10 11:26:14 -04:00
get_preferred_size (META_BACKGROUND_ACTOR (actor), NULL, &height);
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
if (min_height_p)
*min_height_p = height;
if (natural_height_p)
*natural_height_p = height;
}
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
2014-08-10 11:26:14 -04:00
static CoglPipeline *
make_pipeline (PipelineFlags pipeline_flags)
{
static CoglPipeline *templates[4];
CoglPipeline **templatep;
templatep = &templates[pipeline_flags];
if (*templatep == NULL)
{
/* Cogl automatically caches pipelines with no eviction policy,
* so we need to prevent identical pipelines from getting cached
* separately, by reusing the same shader snippets.
*/
*templatep = COGL_PIPELINE (meta_create_texture_pipeline (NULL));
if ((pipeline_flags & PIPELINE_VIGNETTE) != 0)
{
static CoglSnippet *vertex_snippet;
static CoglSnippet *fragment_snippet;
if (!vertex_snippet)
vertex_snippet = cogl_snippet_new (COGL_SNIPPET_HOOK_VERTEX,
VERTEX_SHADER_DECLARATIONS, VERTEX_SHADER_CODE);
cogl_pipeline_add_snippet (*templatep, vertex_snippet);
if (!fragment_snippet)
fragment_snippet = cogl_snippet_new (COGL_SNIPPET_HOOK_FRAGMENT,
FRAGMENT_SHADER_DECLARATIONS, FRAGMENT_SHADER_CODE);
cogl_pipeline_add_snippet (*templatep, fragment_snippet);
}
if ((pipeline_flags & PIPELINE_BLEND) == 0)
cogl_pipeline_set_blend (*templatep, "RGBA = ADD (SRC_COLOR, 0)", NULL);
}
return cogl_pipeline_copy (*templatep);
}
static void
setup_pipeline (MetaBackgroundActor *self,
cairo_rectangle_int_t *actor_pixel_rect)
{
MetaBackgroundActorPrivate *priv = self->priv;
PipelineFlags pipeline_flags = 0;
guint8 opacity;
float color_component;
CoglPipelineFilter filter;
opacity = clutter_actor_get_paint_opacity (CLUTTER_ACTOR (self));
if (opacity < 255)
pipeline_flags |= PIPELINE_BLEND;
if (priv->vignette && clutter_feature_available (CLUTTER_FEATURE_SHADERS_GLSL))
pipeline_flags |= PIPELINE_VIGNETTE;
if (priv->pipeline &&
pipeline_flags != priv->pipeline_flags)
{
cogl_object_unref (priv->pipeline);
priv->pipeline = NULL;
}
if (priv->pipeline == NULL)
{
priv->pipeline_flags = pipeline_flags;
priv->pipeline = make_pipeline (pipeline_flags);
priv->changed = CHANGED_ALL;
}
if ((priv->changed & CHANGED_BACKGROUND) != 0)
{
CoglPipelineWrapMode wrap_mode;
CoglTexture *texture = meta_background_get_texture (priv->background,
priv->monitor,
&priv->texture_area,
&wrap_mode);
priv->force_bilinear = texture &&
(priv->texture_area.width != (int)cogl_texture_get_width (texture) ||
priv->texture_area.height != (int)cogl_texture_get_height (texture));
cogl_pipeline_set_layer_texture (priv->pipeline, 0, texture);
cogl_pipeline_set_layer_wrap_mode (priv->pipeline, 0, wrap_mode);
}
if ((priv->changed & CHANGED_VIGNETTE_PARAMETERS) != 0)
{
cogl_pipeline_set_uniform_1f (priv->pipeline,
cogl_pipeline_get_uniform_location (priv->pipeline,
"vignette_sharpness"),
priv->vignette_sharpness);
}
if (priv->vignette)
MetaBackgroundActor: match total dimming if GLSL is not present Without GLSL, we didn't apply the vignetting, which not only made the background uniform in color, it made it much lighter. Adjust for this and make the average brightness with the vignette effect the same with or without GLSL. https://bugzilla.gnome.org/show_bug.cgi?id=735637
2014-09-02 18:09:29 -04:00
{
color_component = priv->brightness * opacity / 255.;
if (!clutter_feature_available (CLUTTER_FEATURE_SHADERS_GLSL))
{
/* Darken everything to match the average brightness that would
* be there if we were drawing the vignette, which is
background-actor: Add missing paren
2014-09-05 16:51:21 -04:00
* (1 - (pi/12.) * vignette_sharpness) [exercise for the reader :]
MetaBackgroundActor: match total dimming if GLSL is not present Without GLSL, we didn't apply the vignetting, which not only made the background uniform in color, it made it much lighter. Adjust for this and make the average brightness with the vignette effect the same with or without GLSL. https://bugzilla.gnome.org/show_bug.cgi?id=735637
2014-09-02 18:09:29 -04:00
*/
color_component *= (1 - 0.74 * priv->vignette_sharpness);
}
}
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
2014-08-10 11:26:14 -04:00
else
color_component = opacity / 255.;
cogl_pipeline_set_color4f (priv->pipeline,
color_component,
color_component,
color_component,
opacity / 255.);
if (!priv->force_bilinear &&
meta_actor_painting_untransformed (actor_pixel_rect->width, actor_pixel_rect->height, NULL, NULL))
filter = COGL_PIPELINE_FILTER_NEAREST;
else
filter = COGL_PIPELINE_FILTER_LINEAR;
cogl_pipeline_set_layer_filters (priv->pipeline, 0, filter, filter);
}
static void
set_glsl_parameters (MetaBackgroundActor *self,
cairo_rectangle_int_t *actor_pixel_rect)
{
MetaBackgroundActorPrivate *priv = self->priv;
float scale[2];
float offset[2];
/* Compute a scale and offset for transforming texture coordinates to the
* coordinate system from [-0.5 to 0.5] across the area of the actor
*/
scale[0] = priv->texture_area.width / (float)actor_pixel_rect->width;
scale[1] = priv->texture_area.height / (float)actor_pixel_rect->height;
offset[0] = priv->texture_area.x / (float)actor_pixel_rect->width - 0.5;
offset[1] = priv->texture_area.y / (float)actor_pixel_rect->height - 0.5;
cogl_pipeline_set_uniform_float (priv->pipeline,
cogl_pipeline_get_uniform_location (priv->pipeline,
"scale"),
2, 1, scale);
cogl_pipeline_set_uniform_float (priv->pipeline,
cogl_pipeline_get_uniform_location (priv->pipeline,
"offset"),
2, 1, offset);
}
static void
paint_clipped_rectangle (CoglFramebuffer *fb,
CoglPipeline *pipeline,
cairo_rectangle_int_t *rect,
cairo_rectangle_int_t *texture_area)
{
float x1, y1, x2, y2;
float tx1, ty1, tx2, ty2;
x1 = rect->x;
y1 = rect->y;
x2 = rect->x + rect->width;
y2 = rect->y + rect->height;
tx1 = (x1 - texture_area->x) / texture_area->width;
ty1 = (y1 - texture_area->y) / texture_area->height;
tx2 = (x2 - texture_area->x) / texture_area->width;
ty2 = (y2 - texture_area->y) / texture_area->height;
cogl_framebuffer_draw_textured_rectangle (fb, pipeline,
x1, y1, x2, y2,
tx1, ty1, tx2, ty2);
}
background-actor: Add a simple paint volume Not having a paint volume causes every single paint to turn into full-stage redraw, since otherwise culling won't properly work. Since we don't paint outside of our allocation, just use the simple default implementation, but also return TRUE inside it.
2014-09-03 14:07:22 -04:00
static gboolean
meta_background_actor_get_paint_volume (ClutterActor *actor,
ClutterPaintVolume *volume)
{
return clutter_paint_volume_set_from_allocation (volume, actor);
}
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
2014-08-10 11:26:14 -04:00
static void
meta_background_actor_paint (ClutterActor *actor)
{
MetaBackgroundActor *self = META_BACKGROUND_ACTOR (actor);
MetaBackgroundActorPrivate *priv = self->priv;
ClutterActorBox actor_box;
cairo_rectangle_int_t actor_pixel_rect;
CoglFramebuffer *fb;
int i;
if ((priv->clip_region && cairo_region_is_empty (priv->clip_region)))
return;
clutter_actor_get_content_box (actor, &actor_box);
actor_pixel_rect.x = actor_box.x1;
actor_pixel_rect.y = actor_box.y1;
actor_pixel_rect.width = actor_box.x2 - actor_box.x1;
actor_pixel_rect.height = actor_box.y2 - actor_box.y1;
setup_pipeline (self, &actor_pixel_rect);
set_glsl_parameters (self, &actor_pixel_rect);
/* Limit to how many separate rectangles we'll draw; beyond this just
* fall back and draw the whole thing */
#define MAX_RECTS 64
fb = cogl_get_draw_framebuffer ();
/* Now figure out what to actually paint.
*/
if (priv->clip_region != NULL)
{
int n_rects = cairo_region_num_rectangles (priv->clip_region);
if (n_rects <= MAX_RECTS)
{
for (i = 0; i < n_rects; i++)
{
cairo_rectangle_int_t rect;
cairo_region_get_rectangle (priv->clip_region, i, &rect);
if (!gdk_rectangle_intersect (&actor_pixel_rect, &rect, &rect))
continue;
paint_clipped_rectangle (fb, priv->pipeline, &rect, &priv->texture_area);
}
return;
}
}
paint_clipped_rectangle (fb, priv->pipeline, &actor_pixel_rect, &priv->texture_area);
}
static void
meta_background_actor_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
MetaBackgroundActor *self = META_BACKGROUND_ACTOR (object);
MetaBackgroundActorPrivate *priv = self->priv;
switch (prop_id)
{
case PROP_META_SCREEN:
priv->screen = g_value_get_object (value);
break;
case PROP_MONITOR:
priv->monitor = g_value_get_int (value);
break;
case PROP_BACKGROUND:
meta_background_actor_set_background (self, g_value_get_object (value));
break;
MetaBackground: add properties to set vignette settings Make the vignette options properties so they can be animated; modify the function-call API for meta_background_actor_set_vignette() to correspond more closely to the 3 properties. https://bugzilla.gnome.org/show_bug.cgi?id=735637
2014-09-02 21:51:10 -04:00
case PROP_VIGNETTE:
meta_background_actor_set_vignette (self,
g_value_get_boolean (value),
priv->brightness,
priv->vignette_sharpness);
break;
case PROP_VIGNETTE_SHARPNESS:
meta_background_actor_set_vignette (self,
priv->vignette,
priv->brightness,
g_value_get_double (value));
break;
case PROP_BRIGHTNESS:
meta_background_actor_set_vignette (self,
priv->vignette,
g_value_get_double (value),
priv->vignette_sharpness);
break;
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
2014-08-10 11:26:14 -04:00
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
meta_background_actor_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
MetaBackgroundActorPrivate *priv = META_BACKGROUND_ACTOR (object)->priv;
switch (prop_id)
{
case PROP_META_SCREEN:
g_value_set_object (value, priv->screen);
break;
case PROP_MONITOR:
g_value_set_int (value, priv->monitor);
break;
case PROP_BACKGROUND:
g_value_set_object (value, priv->background);
break;
MetaBackground: add properties to set vignette settings Make the vignette options properties so they can be animated; modify the function-call API for meta_background_actor_set_vignette() to correspond more closely to the 3 properties. https://bugzilla.gnome.org/show_bug.cgi?id=735637
2014-09-02 21:51:10 -04:00
case PROP_VIGNETTE:
g_value_set_boolean (value, priv->vignette);
break;
case PROP_BRIGHTNESS:
g_value_set_double (value, priv->brightness);
break;
case PROP_VIGNETTE_SHARPNESS:
g_value_set_double (value, priv->vignette_sharpness);
break;
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
2014-08-10 11:26:14 -04:00
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
static void
meta_background_actor_class_init (MetaBackgroundActorClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
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
2014-08-10 11:26:14 -04:00
GParamSpec *param_spec;
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
MetaBackgroundActor: make it a public class https://bugzilla.gnome.org/show_bug.cgi?id=656433
2011-08-28 21:20:29 -04:00
g_type_class_add_private (klass, sizeof (MetaBackgroundActorPrivate));
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
object_class->dispose = meta_background_actor_dispose;
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
2014-08-10 11:26:14 -04:00
object_class->set_property = meta_background_actor_set_property;
object_class->get_property = meta_background_actor_get_property;
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
actor_class->get_preferred_width = meta_background_actor_get_preferred_width;
actor_class->get_preferred_height = meta_background_actor_get_preferred_height;
background-actor: Add a simple paint volume Not having a paint volume causes every single paint to turn into full-stage redraw, since otherwise culling won't properly work. Since we don't paint outside of our allocation, just use the simple default implementation, but also return TRUE inside it.
2014-09-03 14:07:22 -04:00
actor_class->get_paint_volume = meta_background_actor_get_paint_volume;
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
2014-08-10 11:26:14 -04:00
actor_class->paint = meta_background_actor_paint;
param_spec = g_param_spec_object ("meta-screen",
"MetaScreen",
"MetaScreen",
META_TYPE_SCREEN,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
g_object_class_install_property (object_class,
PROP_META_SCREEN,
param_spec);
param_spec = g_param_spec_int ("monitor",
"monitor",
"monitor",
0, G_MAXINT, 0,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
g_object_class_install_property (object_class,
PROP_MONITOR,
param_spec);
param_spec = g_param_spec_object ("background",
"Background",
"MetaBackground object holding background parameters",
META_TYPE_BACKGROUND,
G_PARAM_READWRITE);
g_object_class_install_property (object_class,
PROP_BACKGROUND,
param_spec);
MetaBackground: add properties to set vignette settings Make the vignette options properties so they can be animated; modify the function-call API for meta_background_actor_set_vignette() to correspond more closely to the 3 properties. https://bugzilla.gnome.org/show_bug.cgi?id=735637
2014-09-02 21:51:10 -04:00
param_spec = g_param_spec_boolean ("vignette",
"Vignette",
"Whether vignette effect is enabled",
FALSE,
G_PARAM_READWRITE);
g_object_class_install_property (object_class,
PROP_VIGNETTE,
param_spec);
param_spec = g_param_spec_double ("brightness",
"Brightness",
"Brightness of vignette effect",
0.0, 1.0, 1.0,
G_PARAM_READWRITE);
g_object_class_install_property (object_class,
PROP_BRIGHTNESS,
param_spec);
param_spec = g_param_spec_double ("vignette-sharpness",
"Vignette Sharpness",
"Sharpness of vignette effect",
0.0, G_MAXDOUBLE, 0.0,
G_PARAM_READWRITE);
g_object_class_install_property (object_class,
PROP_VIGNETTE_SHARPNESS,
param_spec);
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
}
static void
MetaBackgroundActor: add a dim-factor property This property darkens the background. https://bugzilla.gnome.org/show_bug.cgi?id=656433
2011-08-26 14:01:00 -04:00
meta_background_actor_init (MetaBackgroundActor *self)
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
{
MetaBackground: add properties to set vignette settings Make the vignette options properties so they can be animated; modify the function-call API for meta_background_actor_set_vignette() to correspond more closely to the 3 properties. https://bugzilla.gnome.org/show_bug.cgi?id=735637
2014-09-02 21:51:10 -04:00
MetaBackgroundActorPrivate *priv;
priv = self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
META_TYPE_BACKGROUND_ACTOR,
MetaBackgroundActorPrivate);
priv->vignette = FALSE;
priv->brightness = 1.0;
priv->vignette_sharpness = 0.0;
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
}
/**
* meta_background_actor_new:
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
2014-08-10 11:26:14 -04:00
* @monitor: Index of the monitor for which to draw the background
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
*
compositor: rework how backgrounds are managed Background handling in GNOME is very roundabout at the moment. gnome-settings-daemon uses gnome-desktop to read the background from disk into a screen-sized pixmap. It then sets the XID of that pixmap on the _XROOTPMAP_ID root window property. mutter puts that pixmap into a texture/actor which gnome-shell then uses. Having the gnome-settings-daemon detour from disk to screen means we can't easily let the compositor handle transition effects when switching backgrounds. Also, having the background actor be per-screen instead of per-monitor means we may have oversized textures in certain multihead setups. This commit changes mutter to read backgrounds from disk itself, and it changes backgrounds to be per-monitor. This way background handling/compositing is left to the compositor. https://bugzilla.gnome.org/show_bug.cgi?id=682427
2013-01-23 15:54:41 -05:00
* Creates a new actor to draw the background for the given monitor.
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
*
MetaBackgroundActor: make it a public class https://bugzilla.gnome.org/show_bug.cgi?id=656433
2011-08-28 21:20:29 -04:00
* Return value: the newly created background actor
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
*/
ClutterActor *
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
2014-08-10 11:26:14 -04:00
meta_background_actor_new (MetaScreen *screen,
int monitor)
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
{
MetaBackgroundActor *self;
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
2014-08-10 11:26:14 -04:00
self = g_object_new (META_TYPE_BACKGROUND_ACTOR,
"meta-screen", screen,
"monitor", monitor,
NULL);
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
return CLUTTER_ACTOR (self);
}
cullable: Turn cull_out / reset_culling into a separate interface Instead of hardcoded knowledge of certain classes in MetaWindowGroup, create a generic interface that all actors can implement to get parts of their regions culled out during redraw, without needing any special knowledge of how to handle a specific actor. The names now are a bit suspect. MetaBackgroundGroup is a simple MetaCullable that knows how to cull children, and MetaWindowGroup is the "toplevel" cullable that computes the initial two regions. A future cleanup here could be to merge MetaWindowGroup / MetaBackgroundGroup so that we only have a generic MetaSimpleCullable, and move the "toplevel" cullability to be a MetaCullableToplevel. https://bugzilla.gnome.org/show_bug.cgi?id=714706
2013-11-21 15:25:08 -05:00
static void
meta_background_actor_cull_out (MetaCullable *cullable,
cairo_region_t *unobscured_region,
cairo_region_t *clip_region)
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
{
cullable: Turn cull_out / reset_culling into a separate interface Instead of hardcoded knowledge of certain classes in MetaWindowGroup, create a generic interface that all actors can implement to get parts of their regions culled out during redraw, without needing any special knowledge of how to handle a specific actor. The names now are a bit suspect. MetaBackgroundGroup is a simple MetaCullable that knows how to cull children, and MetaWindowGroup is the "toplevel" cullable that computes the initial two regions. A future cleanup here could be to merge MetaWindowGroup / MetaBackgroundGroup so that we only have a generic MetaSimpleCullable, and move the "toplevel" cullability to be a MetaCullableToplevel. https://bugzilla.gnome.org/show_bug.cgi?id=714706
2013-11-21 15:25:08 -05:00
MetaBackgroundActor *self = META_BACKGROUND_ACTOR (cullable);
set_clip_region (self, clip_region);
}
MetaBackgroundActor: make it a public class https://bugzilla.gnome.org/show_bug.cgi?id=656433
2011-08-28 21:20:29 -04:00
cullable: Turn cull_out / reset_culling into a separate interface Instead of hardcoded knowledge of certain classes in MetaWindowGroup, create a generic interface that all actors can implement to get parts of their regions culled out during redraw, without needing any special knowledge of how to handle a specific actor. The names now are a bit suspect. MetaBackgroundGroup is a simple MetaCullable that knows how to cull children, and MetaWindowGroup is the "toplevel" cullable that computes the initial two regions. A future cleanup here could be to merge MetaWindowGroup / MetaBackgroundGroup so that we only have a generic MetaSimpleCullable, and move the "toplevel" cullability to be a MetaCullableToplevel. https://bugzilla.gnome.org/show_bug.cgi?id=714706
2013-11-21 15:25:08 -05:00
static void
meta_background_actor_reset_culling (MetaCullable *cullable)
{
MetaBackgroundActor *self = META_BACKGROUND_ACTOR (cullable);
set_clip_region (self, NULL);
}
Draw the root window background Add code to track and draw the root window background. The advantage of doing it here as compared to in a plugin is that we can use the visiblity smarts of MetaWindowGroup to optimize out drawing the background when obscured. If handling other than tracking the _XROOTPMAP_ID property is desired in the future, more functionality like setting the background from a file or doing cross-fades can be added. The new background actor is exposed to plugins via meta_plugin_get_background_actor() similar to other exposed actors to allow cloning the background for use in other displays. The actual class is not installed for public consumption at the moment since it has no useful methods. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-14 12:37:17 -05:00
cullable: Turn cull_out / reset_culling into a separate interface Instead of hardcoded knowledge of certain classes in MetaWindowGroup, create a generic interface that all actors can implement to get parts of their regions culled out during redraw, without needing any special knowledge of how to handle a specific actor. The names now are a bit suspect. MetaBackgroundGroup is a simple MetaCullable that knows how to cull children, and MetaWindowGroup is the "toplevel" cullable that computes the initial two regions. A future cleanup here could be to merge MetaWindowGroup / MetaBackgroundGroup so that we only have a generic MetaSimpleCullable, and move the "toplevel" cullability to be a MetaCullableToplevel. https://bugzilla.gnome.org/show_bug.cgi?id=714706
2013-11-21 15:25:08 -05:00
static void
cullable_iface_init (MetaCullableInterface *iface)
{
iface->cull_out = meta_background_actor_cull_out;
iface->reset_culling = meta_background_actor_reset_culling;
Turn off background repeats for a full-size image If we have repeats on for a full-sized image, then if the background is displayed scaled (for example, in a desktop preview mode) then we can get artifacts along the edge of the background where the repeat of the opposite edge is blended in by bilinear scaling. So turn off repeats when the screen and background image sizes match. https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-15 16:19:28 -05:00
}
Add the ability to add shader hooks to MetaBackgroundActor Using ClutterEffect is not pratical on MetaBackgroundActor, as the FBO redirection has a noticeable performance impact. Instead, allow adding GLSL code directly to the pipeline used to draw the background texture. At the same time, port MetaBackgroundActor to modern Cogl API. https://bugzilla.gnome.org/show_bug.cgi?id=669798
2012-08-29 19:45:17 -04:00
/**
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
2013-08-27 10:30:39 -04:00
* meta_background_actor_get_clip_region:
compositor: rework how backgrounds are managed Background handling in GNOME is very roundabout at the moment. gnome-settings-daemon uses gnome-desktop to read the background from disk into a screen-sized pixmap. It then sets the XID of that pixmap on the _XROOTPMAP_ID root window property. mutter puts that pixmap into a texture/actor which gnome-shell then uses. Having the gnome-settings-daemon detour from disk to screen means we can't easily let the compositor handle transition effects when switching backgrounds. Also, having the background actor be per-screen instead of per-monitor means we may have oversized textures in certain multihead setups. This commit changes mutter to read backgrounds from disk itself, and it changes backgrounds to be per-monitor. This way background handling/compositing is left to the compositor. https://bugzilla.gnome.org/show_bug.cgi?id=682427
2013-01-23 15:54:41 -05:00
* @self: a #MetaBackgroundActor
Add the ability to add shader hooks to MetaBackgroundActor Using ClutterEffect is not pratical on MetaBackgroundActor, as the FBO redirection has a noticeable performance impact. Instead, allow adding GLSL code directly to the pipeline used to draw the background texture. At the same time, port MetaBackgroundActor to modern Cogl API. https://bugzilla.gnome.org/show_bug.cgi?id=669798
2012-08-29 19:45:17 -04:00
*
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
* Return value (transfer none): a #cairo_region_t that represents the part of
compositor: rework how backgrounds are managed Background handling in GNOME is very roundabout at the moment. gnome-settings-daemon uses gnome-desktop to read the background from disk into a screen-sized pixmap. It then sets the XID of that pixmap on the _XROOTPMAP_ID root window property. mutter puts that pixmap into a texture/actor which gnome-shell then uses. Having the gnome-settings-daemon detour from disk to screen means we can't easily let the compositor handle transition effects when switching backgrounds. Also, having the background actor be per-screen instead of per-monitor means we may have oversized textures in certain multihead setups. This commit changes mutter to read backgrounds from disk itself, and it changes backgrounds to be per-monitor. This way background handling/compositing is left to the compositor. https://bugzilla.gnome.org/show_bug.cgi?id=682427
2013-01-23 15:54:41 -05:00
* the background not obscured by other #MetaBackgroundActor or
* #MetaWindowActor objects.
Add the ability to add shader hooks to MetaBackgroundActor Using ClutterEffect is not pratical on MetaBackgroundActor, as the FBO redirection has a noticeable performance impact. Instead, allow adding GLSL code directly to the pipeline used to draw the background texture. At the same time, port MetaBackgroundActor to modern Cogl API. https://bugzilla.gnome.org/show_bug.cgi?id=669798
2012-08-29 19:45:17 -04:00
*/
compositor: rework how backgrounds are managed Background handling in GNOME is very roundabout at the moment. gnome-settings-daemon uses gnome-desktop to read the background from disk into a screen-sized pixmap. It then sets the XID of that pixmap on the _XROOTPMAP_ID root window property. mutter puts that pixmap into a texture/actor which gnome-shell then uses. Having the gnome-settings-daemon detour from disk to screen means we can't easily let the compositor handle transition effects when switching backgrounds. Also, having the background actor be per-screen instead of per-monitor means we may have oversized textures in certain multihead setups. This commit changes mutter to read backgrounds from disk itself, and it changes backgrounds to be per-monitor. This way background handling/compositing is left to the compositor. https://bugzilla.gnome.org/show_bug.cgi?id=682427
2013-01-23 15:54:41 -05:00
cairo_region_t *
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
2013-08-27 10:30:39 -04:00
meta_background_actor_get_clip_region (MetaBackgroundActor *self)
Add the ability to add shader hooks to MetaBackgroundActor Using ClutterEffect is not pratical on MetaBackgroundActor, as the FBO redirection has a noticeable performance impact. Instead, allow adding GLSL code directly to the pipeline used to draw the background texture. At the same time, port MetaBackgroundActor to modern Cogl API. https://bugzilla.gnome.org/show_bug.cgi?id=669798
2012-08-29 19:45:17 -04:00
{
compositor: rework how backgrounds are managed Background handling in GNOME is very roundabout at the moment. gnome-settings-daemon uses gnome-desktop to read the background from disk into a screen-sized pixmap. It then sets the XID of that pixmap on the _XROOTPMAP_ID root window property. mutter puts that pixmap into a texture/actor which gnome-shell then uses. Having the gnome-settings-daemon detour from disk to screen means we can't easily let the compositor handle transition effects when switching backgrounds. Also, having the background actor be per-screen instead of per-monitor means we may have oversized textures in certain multihead setups. This commit changes mutter to read backgrounds from disk itself, and it changes backgrounds to be per-monitor. This way background handling/compositing is left to the compositor. https://bugzilla.gnome.org/show_bug.cgi?id=682427
2013-01-23 15:54:41 -05:00
MetaBackgroundActorPrivate *priv = self->priv;
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
return priv->clip_region;
MetaBackgroundActor: add a setter for GLSL uniforms It doesn't make sense to GLSL shaders without uniforms. https://bugzilla.gnome.org/show_bug.cgi?id=682536
2012-11-07 13:00:25 -05:00
}
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
2014-08-10 11:26:14 -04:00
static void
invalidate_pipeline (MetaBackgroundActor *self,
ChangedFlags changed)
{
MetaBackgroundActorPrivate *priv = self->priv;
priv->changed |= changed;
}
static void
on_background_changed (MetaBackground *background,
MetaBackgroundActor *self)
{
invalidate_pipeline (self, CHANGED_BACKGROUND);
}
void
meta_background_actor_set_background (MetaBackgroundActor *self,
MetaBackground *background)
{
MetaBackgroundActorPrivate *priv;
g_return_if_fail (META_IS_BACKGROUND_ACTOR (self));
g_return_if_fail (background == NULL || META_IS_BACKGROUND (background));
priv = self->priv;
if (background == priv->background)
return;
if (priv->background)
{
g_signal_handlers_disconnect_by_func (priv->background,
(gpointer)on_background_changed,
self);
g_object_unref (priv->background);
priv->background = NULL;
}
if (background)
{
priv->background = g_object_ref (background);
g_signal_connect (priv->background, "changed",
G_CALLBACK (on_background_changed), self);
}
invalidate_pipeline (self, CHANGED_BACKGROUND);
clutter_actor_queue_redraw (CLUTTER_ACTOR (self));
}
void
meta_background_actor_set_vignette (MetaBackgroundActor *self,
MetaBackground: add properties to set vignette settings Make the vignette options properties so they can be animated; modify the function-call API for meta_background_actor_set_vignette() to correspond more closely to the 3 properties. https://bugzilla.gnome.org/show_bug.cgi?id=735637
2014-09-02 21:51:10 -04:00
gboolean enabled,
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
2014-08-10 11:26:14 -04:00
double brightness,
double sharpness)
{
MetaBackgroundActorPrivate *priv;
MetaBackground: add properties to set vignette settings Make the vignette options properties so they can be animated; modify the function-call API for meta_background_actor_set_vignette() to correspond more closely to the 3 properties. https://bugzilla.gnome.org/show_bug.cgi?id=735637
2014-09-02 21:51:10 -04:00
gboolean changed = FALSE;
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
2014-08-10 11:26:14 -04:00
g_return_if_fail (META_IS_BACKGROUND_ACTOR (self));
g_return_if_fail (brightness >= 0. && brightness <= 1.);
g_return_if_fail (sharpness >= 0.);
priv = self->priv;
MetaBackground: add properties to set vignette settings Make the vignette options properties so they can be animated; modify the function-call API for meta_background_actor_set_vignette() to correspond more closely to the 3 properties. https://bugzilla.gnome.org/show_bug.cgi?id=735637
2014-09-02 21:51:10 -04:00
enabled = enabled != FALSE;
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
2014-08-10 11:26:14 -04:00
MetaBackground: add properties to set vignette settings Make the vignette options properties so they can be animated; modify the function-call API for meta_background_actor_set_vignette() to correspond more closely to the 3 properties. https://bugzilla.gnome.org/show_bug.cgi?id=735637
2014-09-02 21:51:10 -04:00
if (enabled != priv->vignette)
{
priv->vignette = enabled;
invalidate_pipeline (self, CHANGED_EFFECTS);
changed = TRUE;
}
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
2014-08-10 11:26:14 -04:00
MetaBackground: add properties to set vignette settings Make the vignette options properties so they can be animated; modify the function-call API for meta_background_actor_set_vignette() to correspond more closely to the 3 properties. https://bugzilla.gnome.org/show_bug.cgi?id=735637
2014-09-02 21:51:10 -04:00
if (brightness != priv->brightness || sharpness != priv->vignette_sharpness)
{
priv->brightness = brightness;
priv->vignette_sharpness = sharpness;
invalidate_pipeline (self, CHANGED_VIGNETTE_PARAMETERS);
changed = TRUE;
}
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
2014-08-10 11:26:14 -04:00
MetaBackground: add properties to set vignette settings Make the vignette options properties so they can be animated; modify the function-call API for meta_background_actor_set_vignette() to correspond more closely to the 3 properties. https://bugzilla.gnome.org/show_bug.cgi?id=735637
2014-09-02 21:51:10 -04:00
if (changed)
clutter_actor_queue_redraw (CLUTTER_ACTOR (self));
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
2014-08-10 11:26:14 -04:00
}
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