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kwin/options.cpp
Martin Gräßlin 5213c4aff6 Drop direct rendering setting 
The advanced compositing option "direct rendering" could only
correctly be honored in the case of proprietary NVIDIA drivers.
In all other cases playing with the setting was most likely
harmful as it could result in inconsistent states and the
option not to be honored at all.

This patch resolves this issue by moving the detection whether
to use a direct rendering context completely into the hands of
 the set environment variables or the helper program:
* if LIBGL_ALWAYS_INDIRECT is set, we use an indirect context
* if KWIN_DIRECT_GL is set, we use a direct context
* if none of the two are set, we use the helper program, if it
  returns 0 we create a direct context, otherwise we set
  LIBGL_ALWAYS_INDIRECT and create an indirect context

If a user really wants to influence the behavior the
environment variables can be used.

REVIEW: 102074
2011-07-31 17:40:03 +02:00

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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org>
Copyright (C) 2003 Lubos Lunak <l.lunak@kde.org>
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/>.
*********************************************************************/
#include "options.h"
#include "config-kwin.h"
#ifndef KCMRULES
#include <QPalette>
#include <QPixmap>
#include <QProcess>
#include <kapplication.h>
#include <kconfig.h>
#include <kglobal.h>
#include <kglobalsettings.h>
#include <klocale.h>
#include <QDesktopWidget>
#include "client.h"
#include "compositingprefs.h"
#include <kwinglplatform.h>
#include <kephal/screens.h>
#ifdef HAVE_XRANDR
#include <X11/extensions/Xrandr.h>
#endif
#endif
namespace KWin
{
#ifndef KCMRULES
int currentRefreshRate()
{
int rate = -1;
if (options->refreshRate > 0) // use manually configured refresh rate
rate = options->refreshRate;
#ifdef KWIN_HAVE_OPENGL_COMPOSITING
#ifndef KWIN_HAVE_OPENGLES
else if (GLPlatform::instance()->driver() == Driver_NVidia) {
QProcess nvidia_settings;
nvidia_settings.start("nvidia-settings", QStringList() << "-t" << "-q" << "RefreshRate", QIODevice::ReadOnly);
nvidia_settings.waitForFinished();
if (nvidia_settings.exitStatus() == QProcess::NormalExit) {
QString reply = QString::fromLocal8Bit(nvidia_settings.readAllStandardOutput());
bool ok;
const float frate = reply.split(' ').first().toFloat(&ok);
if (!ok)
rate = -1;
else
rate = qRound(frate);
}
}
#endif
#endif
#ifdef HAVE_XRANDR
else if (Extensions::randrAvailable()) {
XRRScreenConfiguration *config = XRRGetScreenInfo(display(), rootWindow());
rate = XRRConfigCurrentRate(config);
XRRFreeScreenConfigInfo(config);
}
#endif
// 0Hz or less is invalid, so we fallback to a default rate
if (rate <= 0)
rate = 50;
// QTimer gives us 1msec (1000Hz) at best, so we ignore anything higher;
// however, additional throttling prevents very high rates from taking place anyway
else if (rate > 1000)
rate = 1000;
kDebug(1212) << "Refresh rate " << rate << "Hz";
return rate;
}
Options::Options()
: electric_borders(0)
, electric_border_delay(0)
{
compositingInitialized = false;
updateSettings();
}
Options::~Options()
{
}
unsigned long Options::updateSettings()
{
KSharedConfig::Ptr _config = KGlobal::config();
unsigned long changed = 0;
changed |= KDecorationOptions::updateSettings(_config.data()); // read decoration settings
KConfigGroup config(_config, "Windows");
show_geometry_tip = config.readEntry("GeometryTip", false);
QString val;
val = config.readEntry("FocusPolicy", "ClickToFocus");
focusPolicy = ClickToFocus; // what a default :-)
if (val == "FocusFollowsMouse")
focusPolicy = FocusFollowsMouse;
else if (val == "FocusUnderMouse")
focusPolicy = FocusUnderMouse;
else if (val == "FocusStrictlyUnderMouse")
focusPolicy = FocusStrictlyUnderMouse;
separateScreenFocus = config.readEntry("SeparateScreenFocus", false);
activeMouseScreen = config.readEntry("ActiveMouseScreen", focusPolicy != ClickToFocus);
rollOverDesktops = config.readEntry("RollOverDesktops", true);
legacyFullscreenSupport = config.readEntry("LegacyFullscreenSupport", false);
// focusStealingPreventionLevel = config.readEntry( "FocusStealingPreventionLevel", 2 );
// TODO use low level for now
focusStealingPreventionLevel = config.readEntry("FocusStealingPreventionLevel", 1);
focusStealingPreventionLevel = qMax(0, qMin(4, focusStealingPreventionLevel));
if (!focusPolicyIsReasonable()) // #48786, comments #7 and later
focusStealingPreventionLevel = 0;
xineramaEnabled = config.readEntry("XineramaEnabled", true);
xineramaPlacementEnabled = config.readEntry("XineramaPlacementEnabled", true);
xineramaMovementEnabled = config.readEntry("XineramaMovementEnabled", true);
xineramaMaximizeEnabled = config.readEntry("XineramaMaximizeEnabled", true);
xineramaFullscreenEnabled = config.readEntry("XineramaFullscreenEnabled", true);
#ifdef KWIN_BUILD_DECORATIONS
placement = Placement::policyFromString(config.readEntry("Placement"), true);
#else
placement = Placement::Maximizing;
#endif
xineramaPlacementScreen = qBound(-1, config.readEntry("XineramaPlacementScreen", -1),
Kephal::ScreenUtils::numScreens() - 1);
if (focusPolicy == ClickToFocus) {
autoRaise = false;
autoRaiseInterval = 0;
delayFocus = false;
delayFocusInterval = 0;
} else {
autoRaise = config.readEntry("AutoRaise", false);
autoRaiseInterval = config.readEntry("AutoRaiseInterval", 0);
delayFocus = config.readEntry("DelayFocus", false);
delayFocusInterval = config.readEntry("DelayFocusInterval", 0);
}
shadeHover = config.readEntry("ShadeHover", false);
shadeHoverInterval = config.readEntry("ShadeHoverInterval", 250);
tilingOn = config.readEntry("TilingOn", false);
tilingLayout = static_cast<TilingLayoutFactory::Layouts>(config.readEntry("TilingDefaultLayout", 0));
tilingRaisePolicy = config.readEntry("TilingRaisePolicy", 0);
// important: autoRaise implies ClickRaise
clickRaise = autoRaise || config.readEntry("ClickRaise", true);
borderSnapZone = config.readEntry("BorderSnapZone", 10);
windowSnapZone = config.readEntry("WindowSnapZone", 10);
centerSnapZone = config.readEntry("CenterSnapZone", 0);
snapOnlyWhenOverlapping = config.readEntry("SnapOnlyWhenOverlapping", false);
// Electric borders
KConfigGroup borderConfig(_config, "ElectricBorders");
electric_border_top = electricBorderAction(borderConfig.readEntry("Top", "None"));
electric_border_top_right = electricBorderAction(borderConfig.readEntry("TopRight", "None"));
electric_border_right = electricBorderAction(borderConfig.readEntry("Right", "None"));
electric_border_bottom_right = electricBorderAction(borderConfig.readEntry("BottomRight", "None"));
electric_border_bottom = electricBorderAction(borderConfig.readEntry("Bottom", "None"));
electric_border_bottom_left = electricBorderAction(borderConfig.readEntry("BottomLeft", "None"));
electric_border_left = electricBorderAction(borderConfig.readEntry("Left", "None"));
electric_border_top_left = electricBorderAction(borderConfig.readEntry("TopLeft", "None"));
electric_borders = config.readEntry("ElectricBorders", 0);
electric_border_delay = config.readEntry("ElectricBorderDelay", 150);
electric_border_cooldown = config.readEntry("ElectricBorderCooldown", 350);
electric_border_pushback_pixels = config.readEntry("ElectricBorderPushbackPixels", 1);
electric_border_maximize = config.readEntry("ElectricBorderMaximize", true);
electric_border_tiling = config.readEntry("ElectricBorderTiling", true);
OpTitlebarDblClick = windowOperation(config.readEntry("TitlebarDoubleClickCommand", "Maximize"), true);
setOpMaxButtonLeftClick(windowOperation(config.readEntry("MaximizeButtonLeftClickCommand", "Maximize"), true));
setOpMaxButtonMiddleClick(windowOperation(config.readEntry("MaximizeButtonMiddleClickCommand", "Maximize (vertical only)"), true));
setOpMaxButtonRightClick(windowOperation(config.readEntry("MaximizeButtonRightClickCommand", "Maximize (horizontal only)"), true));
ignorePositionClasses = config.readEntry("IgnorePositionClasses", QStringList());
ignoreFocusStealingClasses = config.readEntry("IgnoreFocusStealingClasses", QStringList());
// Qt3.2 and older had resource class all lowercase, but Qt3.3 has it capitalized
// therefore Client::resourceClass() forces lowercase, force here lowercase as well
for (QStringList::Iterator it = ignorePositionClasses.begin();
it != ignorePositionClasses.end();
++it)
(*it) = (*it).toLower();
for (QStringList::Iterator it = ignoreFocusStealingClasses.begin();
it != ignoreFocusStealingClasses.end();
++it)
(*it) = (*it).toLower();
killPingTimeout = config.readEntry("KillPingTimeout", 5000);
hideUtilityWindowsForInactive = config.readEntry("HideUtilityWindowsForInactive", true);
inactiveTabsSkipTaskbar = config.readEntry("InactiveTabsSkipTaskbar", false);
autogroupSimilarWindows = config.readEntry("AutogroupSimilarWindows", false);
autogroupInForeground = config.readEntry("AutogroupInForeground", true);
showDesktopIsMinimizeAll = config.readEntry("ShowDesktopIsMinimizeAll", false);
borderless_maximized_windows = config.readEntry("BorderlessMaximizedWindows", false);
// Mouse bindings
config = KConfigGroup(_config, "MouseBindings");
CmdActiveTitlebar1 = mouseCommand(config.readEntry("CommandActiveTitlebar1", "Raise"), true);
CmdActiveTitlebar2 = mouseCommand(config.readEntry("CommandActiveTitlebar2", "Start Window Tab Drag"), true);
CmdActiveTitlebar3 = mouseCommand(config.readEntry("CommandActiveTitlebar3", "Operations menu"), true);
CmdInactiveTitlebar1 = mouseCommand(config.readEntry("CommandInactiveTitlebar1", "Activate and raise"), true);
CmdInactiveTitlebar2 = mouseCommand(config.readEntry("CommandInactiveTitlebar2", "Start Window Tab Drag"), true);
CmdInactiveTitlebar3 = mouseCommand(config.readEntry("CommandInactiveTitlebar3", "Operations menu"), true);
CmdTitlebarWheel = mouseWheelCommand(config.readEntry("CommandTitlebarWheel", "Switch to Window Tab to the Left/Right"));
CmdWindow1 = mouseCommand(config.readEntry("CommandWindow1", "Activate, raise and pass click"), false);
CmdWindow2 = mouseCommand(config.readEntry("CommandWindow2", "Activate and pass click"), false);
CmdWindow3 = mouseCommand(config.readEntry("CommandWindow3", "Activate and pass click"), false);
CmdWindowWheel = mouseCommand(config.readEntry("CommandWindowWheel", "Scroll"), false);
CmdAllModKey = (config.readEntry("CommandAllKey", "Alt") == "Meta") ? Qt::Key_Meta : Qt::Key_Alt;
CmdAll1 = mouseCommand(config.readEntry("CommandAll1", "Move"), false);
CmdAll2 = mouseCommand(config.readEntry("CommandAll2", "Toggle raise and lower"), false);
CmdAll3 = mouseCommand(config.readEntry("CommandAll3", "Resize"), false);
CmdAllWheel = mouseWheelCommand(config.readEntry("CommandAllWheel", "Nothing"));
config = KConfigGroup(_config, "Compositing");
maxFpsInterval = qRound(1000.0 / config.readEntry("MaxFPS", 60));
refreshRate = config.readEntry("RefreshRate", 0);
// Read button tooltip animation effect from kdeglobals
// Since we want to allow users to enable window decoration tooltips
// and not kstyle tooltips and vise-versa, we don't read the
// "EffectNoTooltip" setting from kdeglobals.
// QToolTip::setGloballyEnabled( d->show_tooltips );
// KDE4 this probably needs to be done manually in clients
// Driver-specific config detection
compositingInitialized = false;
reloadCompositingSettings();
return changed;
}
void Options::reloadCompositingSettings(bool force)
{
KSharedConfig::Ptr _config = KGlobal::config();
KConfigGroup config(_config, "Compositing");
QString compositingBackend = config.readEntry("Backend", "OpenGL");
if (compositingBackend == "XRender")
compositingMode = XRenderCompositing;
else
compositingMode = OpenGLCompositing;
useCompositing = false;
if (const char *c = getenv("KWIN_COMPOSE")) {
switch(c[0]) {
case 'O':
kDebug(1212) << "Compositing forced to OpenGL mode by environment variable";
compositingMode = OpenGLCompositing;
useCompositing = true;
break;
case 'X':
kDebug(1212) << "Compositing forced to XRender mode by environment variable";
compositingMode = XRenderCompositing;
useCompositing = true;
break;
case 'N':
if (getenv("KDE_FAILSAFE"))
kDebug(1212) << "Compositing disabled forcefully by KDE failsafe mode";
else
kDebug(1212) << "Compositing disabled forcefully by environment variable";
compositingMode = NoCompositing;
break;
default:
kDebug(1212) << "Unknown KWIN_COMPOSE mode set, ignoring";
break;
}
}
if (compositingMode == NoCompositing)
return; // do not even detect compositing preferences if explicitly disabled
// it's either enforced by env or by initial resume from "suspend" or we check the settings
useCompositing = useCompositing || force || config.readEntry("Enabled", true);
if (!useCompositing)
return; // not enforced or necessary and not "enabled" by setting
// from now on we've an initial setup and don't have to reload settigns on compositing activation
// see Workspace::setupCompositing(), composite.cpp
compositingInitialized = true;
// Compositing settings
CompositingPrefs prefs;
prefs.detect();
useCompositing = config.readEntry("Enabled" , prefs.recommendCompositing());
glDirect = prefs.enableDirectRendering();
glVSync = config.readEntry("GLVSync", prefs.enableVSync());
glSmoothScale = qBound(-1, config.readEntry("GLTextureFilter", 2), 2);
glStrictBinding = config.readEntry("GLStrictBinding", prefs.strictBinding());
xrenderSmoothScale = config.readEntry("XRenderSmoothScale", false);
hiddenPreviews = HiddenPreviewsShown;
// 4 - off, 5 - shown, 6 - always, other are old values
int hps = config.readEntry("HiddenPreviews", 5);
if (hps == 4)
hiddenPreviews = HiddenPreviewsNever;
else if (hps == 5)
hiddenPreviews = HiddenPreviewsShown;
else if (hps == 6)
hiddenPreviews = HiddenPreviewsAlways;
unredirectFullscreen = config.readEntry("UnredirectFullscreen", false);
animationSpeed = qBound(0, config.readEntry("AnimationSpeed", 3), 6);
}
ElectricBorderAction Options::electricBorderAction(const QString& name)
{
QString lowerName = name.toLower();
if (lowerName == "dashboard") return ElectricActionDashboard;
else if (lowerName == "showdesktop") return ElectricActionShowDesktop;
else if (lowerName == "lockscreen") return ElectricActionLockScreen;
else if (lowerName == "preventscreenlocking") return ElectricActionPreventScreenLocking;
return ElectricActionNone;
}
// restricted should be true for operations that the user may not be able to repeat
// if the window is moved out of the workspace (e.g. if the user moves a window
// by the titlebar, and moves it too high beneath Kicker at the top edge, they
// may not be able to move it back, unless they know about Alt+LMB)
Options::WindowOperation Options::windowOperation(const QString &name, bool restricted)
{
if (name == "Move")
return restricted ? MoveOp : UnrestrictedMoveOp;
else if (name == "Resize")
return restricted ? ResizeOp : UnrestrictedResizeOp;
else if (name == "Maximize")
return MaximizeOp;
else if (name == "Minimize")
return MinimizeOp;
else if (name == "Close")
return CloseOp;
else if (name == "OnAllDesktops")
return OnAllDesktopsOp;
else if (name == "Shade")
return ShadeOp;
else if (name == "Operations")
return OperationsOp;
else if (name == "Maximize (vertical only)")
return VMaximizeOp;
else if (name == "Maximize (horizontal only)")
return HMaximizeOp;
else if (name == "Lower")
return LowerOp;
return NoOp;
}
Options::MouseCommand Options::mouseCommand(const QString &name, bool restricted)
{
QString lowerName = name.toLower();
if (lowerName == "raise") return MouseRaise;
if (lowerName == "lower") return MouseLower;
if (lowerName == "operations menu") return MouseOperationsMenu;
if (lowerName == "toggle raise and lower") return MouseToggleRaiseAndLower;
if (lowerName == "activate and raise") return MouseActivateAndRaise;
if (lowerName == "activate and lower") return MouseActivateAndLower;
if (lowerName == "activate") return MouseActivate;
if (lowerName == "activate, raise and pass click") return MouseActivateRaiseAndPassClick;
if (lowerName == "activate and pass click") return MouseActivateAndPassClick;
if (lowerName == "scroll") return MouseNothing;
if (lowerName == "activate and scroll") return MouseActivateAndPassClick;
if (lowerName == "activate, raise and scroll") return MouseActivateRaiseAndPassClick;
if (lowerName == "activate, raise and move")
return restricted ? MouseActivateRaiseAndMove : MouseActivateRaiseAndUnrestrictedMove;
if (lowerName == "move") return restricted ? MouseMove : MouseUnrestrictedMove;
if (lowerName == "resize") return restricted ? MouseResize : MouseUnrestrictedResize;
if (lowerName == "shade") return MouseShade;
if (lowerName == "minimize") return MouseMinimize;
if (lowerName == "start window tab drag") return MouseClientGroupDrag;
if (lowerName == "close") return MouseClose;
if (lowerName == "nothing") return MouseNothing;
return MouseNothing;
}
Options::MouseWheelCommand Options::mouseWheelCommand(const QString &name)
{
QString lowerName = name.toLower();
if (lowerName == "raise/lower") return MouseWheelRaiseLower;
if (lowerName == "shade/unshade") return MouseWheelShadeUnshade;
if (lowerName == "maximize/restore") return MouseWheelMaximizeRestore;
if (lowerName == "above/below") return MouseWheelAboveBelow;
if (lowerName == "previous/next desktop") return MouseWheelPreviousNextDesktop;
if (lowerName == "change opacity") return MouseWheelChangeOpacity;
if (lowerName == "switch to window tab to the left/right") return MouseWheelChangeGroupWindow;
if (lowerName == "nothing") return MouseWheelNothing;
return MouseWheelChangeGroupWindow;
}
bool Options::showGeometryTip()
{
return show_geometry_tip;
}
ElectricBorderAction Options::electricBorderAction(ElectricBorder edge)
{
switch(edge) {
case ElectricTop:
return electric_border_top;
case ElectricTopRight:
return electric_border_top_right;
case ElectricRight:
return electric_border_right;
case ElectricBottomRight:
return electric_border_bottom_right;
case ElectricBottom:
return electric_border_bottom;
case ElectricBottomLeft:
return electric_border_bottom_left;
case ElectricLeft:
return electric_border_left;
case ElectricTopLeft:
return electric_border_top_left;
default:
// fallthrough
break;
}
return ElectricActionNone;
}
int Options::electricBorders()
{
return electric_borders;
}
int Options::electricBorderDelay()
{
return electric_border_delay;
}
int Options::electricBorderCooldown()
{
return electric_border_cooldown;
}
bool Options::checkIgnoreFocusStealing(const Client* c)
{
return ignoreFocusStealingClasses.contains(QString::fromLatin1(c->resourceClass()));
}
Options::MouseCommand Options::wheelToMouseCommand(MouseWheelCommand com, int delta)
{
switch(com) {
case MouseWheelRaiseLower:
return delta > 0 ? MouseRaise : MouseLower;
case MouseWheelShadeUnshade:
return delta > 0 ? MouseSetShade : MouseUnsetShade;
case MouseWheelMaximizeRestore:
return delta > 0 ? MouseMaximize : MouseRestore;
case MouseWheelAboveBelow:
return delta > 0 ? MouseAbove : MouseBelow;
case MouseWheelPreviousNextDesktop:
return delta > 0 ? MousePreviousDesktop : MouseNextDesktop;
case MouseWheelChangeOpacity:
return delta > 0 ? MouseOpacityMore : MouseOpacityLess;
case MouseWheelChangeGroupWindow:
return delta > 0 ? MouseLeftGroupWindow : MouseRightGroupWindow;
default:
return MouseNothing;
}
}
#endif
double Options::animationTimeFactor() const
{
const double factors[] = { 0, 0.2, 0.5, 1, 2, 4, 20 };
return factors[ animationSpeed ];
}
} // namespace
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