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Bug 947504 - Only enable HwcComposer2D by default if hardware supports it. r=gal

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This feature will only be enabled by default on hardware that supports it
which sets the gonk prop "ro.display.colorfill" to true.

The feature can still be force enabled (or force disabled) via the
"layers.composer2d.enabled" setting.
This commit is contained in:
Diego Wilson 2014-01-14 14:44:47 -08:00
parent 8da5d4aecc
commit 4c97e04ee8
2 changed files with 32 additions and 4 deletions
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1
b2g/app/b2g.js
View File

@ -280,7 +280,6 @@ pref("layers.offmainthreadcomposition.async-animations", true);
pref("layers.async-video.enabled", true);
pref("layers.async-pan-zoom.enabled", true);
pref("gfx.content.azure.backends", "cairo");
pref("layers.composer2d.enabled", true);
#endif
// Web Notifications

35
b2g/chrome/content/settings.js
View File

@ -597,9 +597,38 @@ SettingsListener.observe("debug.paint-flashing.enabled", false, function(value)
SettingsListener.observe("layers.draw-borders", false, function(value) {
Services.prefs.setBoolPref("layers.draw-borders", value);
});
SettingsListener.observe("layers.composer2d.enabled", true, function(value) {
Services.prefs.setBoolPref("layers.composer2d.enabled", value);
});
(function Composer2DSettingToPref() {
//layers.composer.enabled can be enabled in three ways
//In order of precedence they are:
//
//1. mozSettings "layers.composer.enabled"
//2. a gecko pref "layers.composer.enabled"
//3. presence of ro.display.colorfill at the Gonk level
var req = navigator.mozSettings.createLock().get('layers.composer2d.enabled');
req.onsuccess = function() {
if (typeof(req.result['layers.composer2d.enabled']) === 'undefined') {
var enabled = false;
if (Services.prefs.getPrefType('layers.composer2d.enabled') == Ci.nsIPrefBranch.PREF_BOOL) {
enabled = Services.prefs.getBoolPref('layers.composer2d.enabled');
} else {
#ifdef MOZ_WIDGET_GONK
enabled = (libcutils.property_get('ro.display.colorfill') === '1');
#endif
}
navigator.mozSettings.createLock().set({'layers.composer2d.enabled': enabled });
}
SettingsListener.observe("layers.composer2d.enabled", true, function(value) {
Services.prefs.setBoolPref("layers.composer2d.enabled", value);
});
};
req.onerror = function() {
dump("Error configuring layers.composer2d.enabled setting");
};
})();
// ================ Accessibility ============
SettingsListener.observe("accessibility.screenreader", false, function(value) {