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Add a special background to use for performance testing

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Performance testing was producing inconsistent values at different
times in the day since the GNOME default background is animated and
sometimes has a single layer, and sometimes two blended layers.

So we have consistent numbers, install a simple animated background
with GNOME Shell that has 40-year long transition ending in 2030,a
and set an environment variable in gnome-shell-perf-tool so that the
background is override with that background. (The background depends
on files installed by gnome-backgrounds; we assume that the person
running performance tests is doing so within the scope of a full
GNOME install.)

https://bugzilla.gnome.org/show_bug.cgi?id=734610
This commit is contained in:
Owen W. Taylor
2014-08-11 14:35:52 +02:00
parent d450b74e10
commit 20fc9735fa
5 changed files with 67 additions and 13 deletions
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36
js/ui/background.js
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@ -311,7 +311,8 @@ const Background = new Lang.Class({
params = Params.parse(params, { monitorIndex: 0,
layoutManager: Main.layoutManager,
effects: Meta.BackgroundEffects.NONE,
settings: null });
settings: null,
overrideImage: null });
this.actor = new Meta.BackgroundGroup();
this.actor._delegate = this;
@ -319,6 +320,7 @@ const Background = new Lang.Class({
Lang.bind(this, this._destroy));
this._settings = params.settings;
this._overrideImage = params.overrideImage;
this._monitorIndex = params.monitorIndex;
this._layoutManager = params.layoutManager;
this._effects = params.effects;
@ -582,18 +584,23 @@ const Background = new Lang.Class({
this._loadPattern();
this._style = this._settings.get_enum(BACKGROUND_STYLE_KEY);
if (this._style == GDesktopEnums.BackgroundStyle.NONE) {
this._setLoaded();
return;
}
let uri = this._settings.get_string(PICTURE_URI_KEY);
let filename;
if (GLib.uri_parse_scheme(uri) != null)
filename = Gio.File.new_for_uri(uri).get_path();
else
filename = uri;
if (this._overrideImage != null) {
filename = this._overrideImage;
this._style = GDesktopEnums.BackgroundStyle.WALLPAPER; // Hardcode
} else {
this._style = this._settings.get_enum(BACKGROUND_STYLE_KEY);
if (this._style == GDesktopEnums.BackgroundStyle.NONE) {
this._setLoaded();
return;
}
let uri = this._settings.get_string(PICTURE_URI_KEY);
if (GLib.uri_parse_scheme(uri) != null)
filename = Gio.File.new_for_uri(uri).get_path();
else
filename = uri;
}
if (!filename) {
this._setLoaded();
@ -728,6 +735,8 @@ const BackgroundManager = new Lang.Class({
controlPosition: true,
settingsSchema: BACKGROUND_SCHEMA });
// Allow override the background image setting for performance testing
this._overrideImage = GLib.getenv('SHELL_BACKGROUND_IMAGE');
this._settings = new Gio.Settings({ schema_id: params.settingsSchema });
this._container = params.container;
this._layoutManager = params.layoutManager;
@ -789,7 +798,8 @@ const BackgroundManager = new Lang.Class({
let background = new Background({ monitorIndex: this._monitorIndex,
layoutManager: this._layoutManager,
effects: this._effects,
settings: this._settings });
settings: this._settings,
overrideImage: this._overrideImage });
this._container.add_child(background.actor);
let monitor = this._layoutManager.monitors[this._monitorIndex];