yukijoou/kwin
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

prevent calling xrandr w/o extension available

Browse source 
BUG: 343844
FIXED-IN: 5.5
REVIEW: 125074
This commit is contained in:
Thomas Lübking 2015-09-06 16:44:07 +02:00
parent d04645266c
commit 0302b97aea
2 changed files with 30 additions and 25 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
screens_xrandr.cpp
View file

@ -42,6 +42,10 @@ void XRandRScreens::update()
};
m_geometries.clear();
m_names.clear();
if (!Xcb::Extensions::self()->isRandrAvailable()) {
fallback();
return;
}
T resources(rootWindow());
if (resources.isNull()) {
fallback();

51
useractions.cpp
View file

@ -1746,33 +1746,34 @@ void Workspace::slotInvertScreen()
using namespace Xcb::RandR;
bool succeeded = false;
//BEGIN Xrandr inversion - does atm NOT work with the nvidia blob
ScreenResources res(active_client ? active_client->window() : rootWindow());
if (Xcb::Extensions::self()->isRandrAvailable()) {
ScreenResources res(active_client ? active_client->window() : rootWindow());
if (!res.isNull()) {
for (int j = 0; j < res->num_crtcs; ++j) {
auto crtc = res.crtcs()[j];
CrtcGamma gamma(crtc);
if (gamma.isNull()) {
continue;
}
if (gamma->size) {
qCDebug(KWIN_CORE) << "inverting screen using XRRSetCrtcGamma";
const int half = gamma->size / 2 + 1;
uint16_t *red = gamma.red();
uint16_t *green = gamma.green();
uint16_t *blue = gamma.blue();
for (int i = 0; i < half; ++i) {
auto invert = [&gamma, i](uint16_t *ramp) {
qSwap(ramp[i], ramp[gamma->size - 1 - i]);
};
invert(red);
invert(green);
invert(blue);
if (!res.isNull()) {
for (int j = 0; j < res->num_crtcs; ++j) {
auto crtc = res.crtcs()[j];
CrtcGamma gamma(crtc);
if (gamma.isNull()) {
continue;
}
if (gamma->size) {
qCDebug(KWIN_CORE) << "inverting screen using xcb_randr_set_crtc_gamma";
const int half = gamma->size / 2 + 1;
uint16_t *red = gamma.red();
uint16_t *green = gamma.green();
uint16_t *blue = gamma.blue();
for (int i = 0; i < half; ++i) {
auto invert = [&gamma, i](uint16_t *ramp) {
qSwap(ramp[i], ramp[gamma->size - 1 - i]);
};
invert(red);
invert(green);
invert(blue);
}
xcb_randr_set_crtc_gamma(connection(), crtc, gamma->size, red, green, blue);
succeeded = true;
}
xcb_randr_set_crtc_gamma(connection(), crtc, gamma->size, red, green, blue);
succeeded = true;
}
}
}