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Add a workaround for XWarpPointer bug mentioned reported by vikaig (#450)
Problem is that the mouse jumps when users have set a coordinate transformation matrix for their mouse on X11. XWarpPointer first sets the correct coordinates, but X11 then moves the mouse wrongly to the scaled position on the next mouse event. On X-Org bugtracker it's this bug: https://gitlab.freedesktop.org/xorg/xserver/-/issues/600 The fix needs compiling with _IRR_LINUX_X11_XINPUT2_ enabled (so far disabled by default) Note: We only use XINPUT2 so far for touch-input... I hope this patch won't conflict with that. Also I mix now IInput2 and X11 functions as getting the mouse-position still uses X11. But seems to work in my tests. git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6230 dfc29bdd-3216-0410-991c-e03cc46cb475
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@ -1,5 +1,8 @@
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--------------------------
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Changes in 1.9 (not yet released)
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- Add a workaround for XWarpPointer bug that causes mouse to jump when users have set a Coordinate Transformation Matrix for their mouse on X11.
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This was mentioned in bug #450 by vikaig.
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The fix needs compiling with _IRR_LINUX_X11_XINPUT2_ enabled (so far disabled by default)
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- Add IGeometryCreator::createTorusMesh to create donuts.
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- Don't try loading broken image files twice with same loader anymore.
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- Make CImageLoaderJPG thread safe. Thanks @ Edoardo Lolletti for report and patch (patch #324)
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@ -2154,6 +2154,9 @@ CIrrDeviceLinux::CCursorControl::CCursorControl(CIrrDeviceLinux* dev, bool null)
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: Device(dev)
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#ifdef _IRR_COMPILE_WITH_X11_
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, PlatformBehavior(gui::ECPB_NONE), LastQuery(0)
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#ifdef _IRR_LINUX_X11_XINPUT2_
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, DeviceId(0)
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#endif
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#endif
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, IsVisible(true), Null(null), UseReferenceRect(false)
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, ActiveIcon(gui::ECI_NORMAL), ActiveIconStartTime(0)
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@ -2161,6 +2164,10 @@ CIrrDeviceLinux::CCursorControl::CCursorControl(CIrrDeviceLinux* dev, bool null)
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#ifdef _IRR_COMPILE_WITH_X11_
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if (!Null)
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{
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#ifdef _IRR_LINUX_X11_XINPUT2_
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XIGetClientPointer(Device->XDisplay, Device->XWindow, &DeviceId);
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#endif
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XGCValues values;
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unsigned long valuemask = 0;
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@ -37,6 +37,10 @@
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#endif
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#include <X11/keysym.h>
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#ifdef _IRR_LINUX_X11_XINPUT2_
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#include <X11/extensions/XInput2.h>
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#endif
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#else
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#define KeySym s32
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#endif
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@ -224,22 +228,54 @@ namespace irr
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{
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if (UseReferenceRect)
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{
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XWarpPointer(Device->XDisplay,
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None,
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Device->XWindow, 0, 0,
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Device->Width,
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Device->Height,
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ReferenceRect.UpperLeftCorner.X + x,
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ReferenceRect.UpperLeftCorner.Y + y);
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// NOTE: XIWarpPointer works when X11 has set a coordinate transformation matrix for the mouse unlike XWarpPointer
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// which runs into a bug mentioned here: https://gitlab.freedesktop.org/xorg/xserver/-/issues/600
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// So also workaround for Irrlicht bug #450
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#ifdef _IRR_LINUX_X11_XINPUT2_
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if ( DeviceId != 0)
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{
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XIWarpPointer(Device->XDisplay,
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DeviceId,
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None,
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Device->XWindow, 0, 0,
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Device->Width,
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Device->Height,
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ReferenceRect.UpperLeftCorner.X + x,
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ReferenceRect.UpperLeftCorner.Y + y);
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}
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else
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#endif
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{
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XWarpPointer(Device->XDisplay,
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None,
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Device->XWindow, 0, 0,
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Device->Width,
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Device->Height,
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ReferenceRect.UpperLeftCorner.X + x,
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ReferenceRect.UpperLeftCorner.Y + y);
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}
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}
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else
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{
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XWarpPointer(Device->XDisplay,
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None,
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Device->XWindow, 0, 0,
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Device->Width,
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Device->Height, x, y);
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#ifdef _IRR_LINUX_X11_XINPUT2_
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if ( DeviceId != 0)
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{
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XIWarpPointer(Device->XDisplay,
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DeviceId,
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None,
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Device->XWindow, 0, 0,
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Device->Width,
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Device->Height, x, y);
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}
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else
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#endif
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{
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XWarpPointer(Device->XDisplay,
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None,
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Device->XWindow, 0, 0,
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Device->Width,
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Device->Height, x, y);
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}
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}
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XFlush(Device->XDisplay);
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}
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@ -353,6 +389,10 @@ namespace irr
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u32 LastQuery;
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Cursor InvisCursor;
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#ifdef _IRR_LINUX_X11_XINPUT2_
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int DeviceId;
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#endif
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struct CursorFrameX11
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{
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CursorFrameX11() : IconHW(0) {}
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