teamnwah/openmw-tes3coop
2
0
Fork 1
forked from mirror/openmw-tes3mp
Code Issues Pull requests 1 Releases Wiki Activity

Avoid warping the mouse cursor more than necessary

Browse source 
Apparently, the SDL_WarpMouseInWindow can be very expensive (anywhere from 0.1-5ms) due to XSync() in the implementation.

This was causing no-grab=1 configurations to suffer from terrible stuttering when turning the view.
This commit is contained in:
scrawl 2017-03-14 00:21:49 +01:00
parent a8517c34eb
commit c1fe9f2a89
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
components/sdlutil/sdlinputwrapper.cpp
View file

@ -329,8 +329,8 @@ InputWrapper::InputWrapper(SDL_Window* window, osg::ref_ptr<osgViewer::Viewer> v
SDL_GetWindowSize(mSDLWindow, &width, &height);
const int FUDGE_FACTOR_X = width;
const int FUDGE_FACTOR_Y = height;
const int FUDGE_FACTOR_X = width/4;
const int FUDGE_FACTOR_Y = height/4;
//warp the mouse if it's about to go outside the window
if(evt.x - FUDGE_FACTOR_X < 0 || evt.x + FUDGE_FACTOR_X > width