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x11: Don't try to use XInput2 multitouch if not supported. 

Fixes #5889.
main
Ryan C. Gordon 2022-07-04 12:48:32 -04:00
parent b085c18251
commit fdb86b8266
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GPG Key ID: FA148B892AB48044
2 changed files with 14 additions and 3 deletions
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2
src/video/x11/SDL_x11touch.c
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@ -31,10 +31,8 @@
void
X11_InitTouch(_THIS)
{
if (X11_Xinput2IsMultitouchSupported()) {
X11_InitXinput2Multitouch(_this);
}
}
void
X11_QuitTouch(_THIS)

13
src/video/x11/SDL_x11xinput2.c
View File

@ -265,6 +265,11 @@ X11_InitXinput2Multitouch(_THIS)
SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
XIDeviceInfo *info;
int ndevices,i,j;
if (!X11_Xinput2IsMultitouchSupported()) {
return;
}
info = X11_XIQueryDevice(data->display, XIAllDevices, &ndevices);
for (i = 0; i < ndevices; i++) {
@ -354,6 +359,10 @@ X11_Xinput2GrabTouch(_THIS, SDL_Window *window)
XIGrabModifiers mods;
XIEventMask eventmask;
if (!X11_Xinput2IsMultitouchSupported()) {
return;
}
mods.modifiers = XIAnyModifier;
mods.status = 0;
@ -379,6 +388,10 @@ X11_Xinput2UngrabTouch(_THIS, SDL_Window *window)
XIGrabModifiers mods;
if (!X11_Xinput2IsMultitouchSupported()) {
return;
}
mods.modifiers = XIAnyModifier;
mods.status = 0;