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mutter/src/meta/meta-background-image.h

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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 15:26:14 +00:00
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* MetaBackgroundImageCache:
*
* Simple cache for background textures loaded from files
*
* Copyright 2014 Red Hat, Inc.
*
* 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
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __META_BACKGROUND_IMAGE_H__
#define __META_BACKGROUND_IMAGE_H__
Clean up include macros mess The order and way include macros were structured was chaotic, with no real common thread between files. Try to tidy up the mess with some common scheme, to make things look less messy.
2018-07-10 08:36:24 +00:00
#include <gio/gio.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 15:26:14 +00:00
#include <glib-object.h>
Clean up include macros mess The order and way include macros were structured was chaotic, with no real common thread between files. Try to tidy up the mess with some common scheme, to make things look less messy.
2018-07-10 08:36:24 +00:00
#include "cogl/cogl.h"
#include "meta/display.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 15:26:14 +00:00
Use G_DECLARE_DERIVABLE/FINAL_TYPE on some types This is only for types in the `Meta` namespace. * Clears up a lot of boilerplate * We get `g_autoptr` support for free
2018-10-31 10:47:17 +00:00
#define META_TYPE_BACKGROUND_IMAGE (meta_background_image_get_type ())
meta: Hide libmutter symbols by default and selectively export them Make meson link libmutter using -fvisibility=hidden, and introduce META_EXPORT and META_EXPORT_TEST defines to mark a symbols as visible. The TEST version is meant to be used to flag symbols that are only used internally by mutter tests, but that should not be considered public API. This allows us to be more precise in selecting what is exported and what is not, without the need of a version-script file that would be more complicated to maintain. https://gitlab.gnome.org/GNOME/mutter/merge_requests/395
2019-01-23 02:25:35 +00:00
META_EXPORT
Use G_DECLARE_DERIVABLE/FINAL_TYPE on some types This is only for types in the `Meta` namespace. * Clears up a lot of boilerplate * We get `g_autoptr` support for free
2018-10-31 10:47:17 +00:00
G_DECLARE_FINAL_TYPE (MetaBackgroundImage,
meta_background_image,
META, BACKGROUND_IMAGE,
GObject)
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 15:26:14 +00:00
meta: Hide libmutter symbols by default and selectively export them Make meson link libmutter using -fvisibility=hidden, and introduce META_EXPORT and META_EXPORT_TEST defines to mark a symbols as visible. The TEST version is meant to be used to flag symbols that are only used internally by mutter tests, but that should not be considered public API. This allows us to be more precise in selecting what is exported and what is not, without the need of a version-script file that would be more complicated to maintain. https://gitlab.gnome.org/GNOME/mutter/merge_requests/395
2019-01-23 02:25:35 +00:00
META_EXPORT
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 15:26:14 +00:00
gboolean meta_background_image_is_loaded (MetaBackgroundImage *image);
meta: Hide libmutter symbols by default and selectively export them Make meson link libmutter using -fvisibility=hidden, and introduce META_EXPORT and META_EXPORT_TEST defines to mark a symbols as visible. The TEST version is meant to be used to flag symbols that are only used internally by mutter tests, but that should not be considered public API. This allows us to be more precise in selecting what is exported and what is not, without the need of a version-script file that would be more complicated to maintain. https://gitlab.gnome.org/GNOME/mutter/merge_requests/395
2019-01-23 02:25:35 +00:00
META_EXPORT
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 15:26:14 +00:00
gboolean meta_background_image_get_success (MetaBackgroundImage *image);
meta: Hide libmutter symbols by default and selectively export them Make meson link libmutter using -fvisibility=hidden, and introduce META_EXPORT and META_EXPORT_TEST defines to mark a symbols as visible. The TEST version is meant to be used to flag symbols that are only used internally by mutter tests, but that should not be considered public API. This allows us to be more precise in selecting what is exported and what is not, without the need of a version-script file that would be more complicated to maintain. https://gitlab.gnome.org/GNOME/mutter/merge_requests/395
2019-01-23 02:25:35 +00:00
META_EXPORT
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 15:26:14 +00:00
CoglTexture *meta_background_image_get_texture (MetaBackgroundImage *image);
Use G_DECLARE_DERIVABLE/FINAL_TYPE on some types This is only for types in the `Meta` namespace. * Clears up a lot of boilerplate * We get `g_autoptr` support for free
2018-10-31 10:47:17 +00:00
#define META_TYPE_BACKGROUND_IMAGE_CACHE (meta_background_image_cache_get_type ())
meta: Hide libmutter symbols by default and selectively export them Make meson link libmutter using -fvisibility=hidden, and introduce META_EXPORT and META_EXPORT_TEST defines to mark a symbols as visible. The TEST version is meant to be used to flag symbols that are only used internally by mutter tests, but that should not be considered public API. This allows us to be more precise in selecting what is exported and what is not, without the need of a version-script file that would be more complicated to maintain. https://gitlab.gnome.org/GNOME/mutter/merge_requests/395
2019-01-23 02:25:35 +00:00
META_EXPORT
Use G_DECLARE_DERIVABLE/FINAL_TYPE on some types This is only for types in the `Meta` namespace. * Clears up a lot of boilerplate * We get `g_autoptr` support for free
2018-10-31 10:47:17 +00:00
G_DECLARE_FINAL_TYPE (MetaBackgroundImageCache,
meta_background_image_cache,
META, BACKGROUND_IMAGE_CACHE,
GObject)
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 15:26:14 +00:00
meta: Hide libmutter symbols by default and selectively export them Make meson link libmutter using -fvisibility=hidden, and introduce META_EXPORT and META_EXPORT_TEST defines to mark a symbols as visible. The TEST version is meant to be used to flag symbols that are only used internally by mutter tests, but that should not be considered public API. This allows us to be more precise in selecting what is exported and what is not, without the need of a version-script file that would be more complicated to maintain. https://gitlab.gnome.org/GNOME/mutter/merge_requests/395
2019-01-23 02:25:35 +00:00
META_EXPORT
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 15:26:14 +00:00
MetaBackgroundImageCache *meta_background_image_cache_get_default (void);
meta: Hide libmutter symbols by default and selectively export them Make meson link libmutter using -fvisibility=hidden, and introduce META_EXPORT and META_EXPORT_TEST defines to mark a symbols as visible. The TEST version is meant to be used to flag symbols that are only used internally by mutter tests, but that should not be considered public API. This allows us to be more precise in selecting what is exported and what is not, without the need of a version-script file that would be more complicated to maintain. https://gitlab.gnome.org/GNOME/mutter/merge_requests/395
2019-01-23 02:25:35 +00:00
META_EXPORT
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 15:26:14 +00:00
MetaBackgroundImage *meta_background_image_cache_load (MetaBackgroundImageCache *cache,
background: use GFiles instead of filenames We want to use GResources for system backgrounds, so move this to a GFile. https://bugzilla.gnome.org/show_bug.cgi?id=736936
2014-09-19 01:22:39 +00:00
GFile *file);
meta: Hide libmutter symbols by default and selectively export them Make meson link libmutter using -fvisibility=hidden, and introduce META_EXPORT and META_EXPORT_TEST defines to mark a symbols as visible. The TEST version is meant to be used to flag symbols that are only used internally by mutter tests, but that should not be considered public API. This allows us to be more precise in selecting what is exported and what is not, without the need of a version-script file that would be more complicated to maintain. https://gitlab.gnome.org/GNOME/mutter/merge_requests/395
2019-01-23 02:25:35 +00:00
META_EXPORT
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 15:26:14 +00:00
void meta_background_image_cache_purge (MetaBackgroundImageCache *cache,
background: use GFiles instead of filenames We want to use GResources for system backgrounds, so move this to a GFile. https://bugzilla.gnome.org/show_bug.cgi?id=736936
2014-09-19 01:22:39 +00:00
GFile *file);
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 15:26:14 +00:00
#endif /* __META_BACKGROUND_IMAGE_H__ */
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