Rex Dieter
9 years ago
parent
0d9eeee863
commit
ba51832b83
@ -0,0 +1,38 @@
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From dde0ecce02259a26655737e6674950e2e303bc6f Mon Sep 17 00:00:00 2001
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From: Kai Uwe Broulik <kde@privat.broulik.de>
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Date: Sun, 13 Dec 2015 21:15:44 +0100
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Subject: [PATCH 1/2] [XRandRBrightness] Don't call for xrandr if it's not
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available
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Check whether the extension is available before calling into it.
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REVIEW: 126146
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BUG: 352462
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FIXED-IN: 5.5.1
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---
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daemon/backends/upower/xrandrbrightness.cpp | 9 +++++++++
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1 file changed, 9 insertions(+)
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diff --git a/daemon/backends/upower/xrandrbrightness.cpp b/daemon/backends/upower/xrandrbrightness.cpp
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index 0abcefe..f899400 100644
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--- a/daemon/backends/upower/xrandrbrightness.cpp
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+++ b/daemon/backends/upower/xrandrbrightness.cpp
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@@ -29,6 +29,15 @@ XRandrBrightness::XRandrBrightness()
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if (!QX11Info::isPlatformX11()) {
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return;
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}
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+
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+ xcb_prefetch_extension_data(QX11Info::connection(), &xcb_randr_id);
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+ // this reply, for once, does not need to be managed by us
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+ auto *extension = xcb_get_extension_data(QX11Info::connection(), &xcb_randr_id);
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+ if (!extension || !extension->present) {
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+ qCWarning(POWERDEVIL) << "XRandR extension not available";
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+ return;
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+ }
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+
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ScopedCPointer<xcb_randr_query_version_reply_t> versionReply(xcb_randr_query_version_reply(QX11Info::connection(),
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xcb_randr_query_version(QX11Info::connection(), 1, 2),
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nullptr));
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--
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2.5.0
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@ -0,0 +1,71 @@
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From 284ca7af172ea94a3fb8a631b220db50f1da7b91 Mon Sep 17 00:00:00 2001
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From: Kai Uwe Broulik <kde@privat.broulik.de>
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Date: Sun, 13 Dec 2015 21:16:49 +0100
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Subject: [PATCH 2/2] [XRandRBrightness] Cache XCB connection in variable
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QX11Info::connection() is expensive
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---
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daemon/backends/upower/xrandrbrightness.cpp | 20 +++++++++++---------
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1 file changed, 11 insertions(+), 9 deletions(-)
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diff --git a/daemon/backends/upower/xrandrbrightness.cpp b/daemon/backends/upower/xrandrbrightness.cpp
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index f899400..586801c 100644
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--- a/daemon/backends/upower/xrandrbrightness.cpp
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+++ b/daemon/backends/upower/xrandrbrightness.cpp
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@@ -30,16 +30,18 @@ XRandrBrightness::XRandrBrightness()
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return;
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}
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- xcb_prefetch_extension_data(QX11Info::connection(), &xcb_randr_id);
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+ auto *c = QX11Info::connection();
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+
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+ xcb_prefetch_extension_data(c, &xcb_randr_id);
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// this reply, for once, does not need to be managed by us
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- auto *extension = xcb_get_extension_data(QX11Info::connection(), &xcb_randr_id);
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+ auto *extension = xcb_get_extension_data(c, &xcb_randr_id);
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if (!extension || !extension->present) {
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qCWarning(POWERDEVIL) << "XRandR extension not available";
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return;
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}
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- ScopedCPointer<xcb_randr_query_version_reply_t> versionReply(xcb_randr_query_version_reply(QX11Info::connection(),
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- xcb_randr_query_version(QX11Info::connection(), 1, 2),
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+ ScopedCPointer<xcb_randr_query_version_reply_t> versionReply(xcb_randr_query_version_reply(c,
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+ xcb_randr_query_version(c, 1, 2),
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nullptr));
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if (!versionReply) {
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@@ -52,8 +54,8 @@ XRandrBrightness::XRandrBrightness()
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return;
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}
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- ScopedCPointer<xcb_intern_atom_reply_t> backlightReply(xcb_intern_atom_reply(QX11Info::connection(),
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- xcb_intern_atom (QX11Info::connection(), 1, strlen("Backlight"), "Backlight"),
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+ ScopedCPointer<xcb_intern_atom_reply_t> backlightReply(xcb_intern_atom_reply(c,
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+ xcb_intern_atom(c, 1, strlen("Backlight"), "Backlight"),
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nullptr));
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if (!backlightReply) {
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@@ -68,7 +70,7 @@ XRandrBrightness::XRandrBrightness()
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return;
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}
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- xcb_screen_iterator_t iter = xcb_setup_roots_iterator(xcb_get_setup(QX11Info::connection()));
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+ xcb_screen_iterator_t iter = xcb_setup_roots_iterator(xcb_get_setup(c));
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if (!iter.rem) {
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qCWarning(POWERDEVIL, "XCB Screen Roots Iterator rem was null");
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return;
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@@ -77,8 +79,8 @@ XRandrBrightness::XRandrBrightness()
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xcb_screen_t *screen = iter.data;
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xcb_window_t root = screen->root;
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- m_resources.reset(xcb_randr_get_screen_resources_current_reply(QX11Info::connection(),
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- xcb_randr_get_screen_resources_current(QX11Info::connection(), root)
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+ m_resources.reset(xcb_randr_get_screen_resources_current_reply(c,
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+ xcb_randr_get_screen_resources_current(c, root)
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, nullptr));
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if (!m_resources) {
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--
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2.5.0
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