weston dnd client render issues

Submitted by Brian Lovin

Assigned to Wayland bug list

Link to original bug (#56298)

Description

System Environment:

Distro: Ubuntu 12.04

Arch: x86_64

cairo master db488a1703d4ef3bcbd54138b51c01600a2f4d3a

dri2proto master 4eeacce4c4a300b938b7e3fb78a8e443c491780b

drm master 844d75e5a0b3b8f3466a24256955e886275fb298

glproto master ec1eec4355ee4a6c5134f2178192f10b6d28a87a

kbproto master 391a1f6de6315fc0196d407d800597488315cccb

libX11 master d45b3fc19fbe95c41afc4e51d768df6d42332010

libxkbcommon master 3477d9e4480f4f2607d371345cc1c09bb8a35c78

macros master 0890e4003aacfa7113ab3f4e3ad7c5636f8e922a

mesa master df3721fd2e10ef27ce12a0c1025c9770137fa8f7

pixman master 2e17b6dd4ee7c32684fb7ffc70d3ad3ebf7cb2ef

wayland master 0371668dcca5aa29c0fc4b59b974e40bcf073563

weston master 4e07236e

Detailed Description:

I have observed multiple issues with rendering under the DnD client - I combined them all into this one bug.

Issue 1: When a flower is dropped it "flashes" for a brief moment only when mouse is stopped, if mouse cursor is in movement the flower won't flash

Issue 2: When a flower is clicked it moves a couple pixels - even if the mouse hasn't moved.

Issue 3: When you release the mouse button after draging and dropping, but don't move the mouse the incorrect cursor is displayed.

Issue 4: When DND client is spun around it's axis and a flower is picked up to be dragged it "snaps" back to it's original position - sometimes off the mouse cursor

Steps to Reproduce:

1. start weston under X11 or DRM mode
2. ./dnd
3. Drag and drop items (same window is OK), click items, spin window and drop items, release mouse and observe the incorrect cursor