Bug 37244

Summary:	XTranslateCoordinates takes int arguments but clamps to short
Product:	xorg	Reporter:	Campbell Barton <ideasman42>
Component:	Lib/Xlib	Assignee:	Xorg Project Team <xorg-team>
Status:	RESOLVED WONTFIX	QA Contact:	Xorg Project Team <xorg-team>
Severity:	minor
Priority:	medium	Keywords:	x12
Version:	unspecified
Hardware:	All
OS:	All
Whiteboard:
i915 platform:		i915 features:

Description Campbell Barton 2011-05-15 22:11:27 UTC

The input of XTranslateCoordinates are ints however internally the values are clamped to shorts.

From looking at the source code this is intentional however its really not useful when getting offscreen coords.

Reported as a bug in blender.
http://projects.blender.org/tracker/index.php?func=detail&aid=27358&group_id=9&atid=498

Comment 1 Alan Coopersmith 2011-05-15 23:59:07 UTC

The X protocol defines coordinates as signed 16 bit intergers.
Changing this would require a protocol bump, to X12. as discussed at:
   http://wiki.x.org/wiki/Development/X12#A15bitcoordinatelimit
but no one is seriously working on that.

Comment 2 Jeremy Huddleston Sequoia 2011-10-09 02:14:46 UTC

Closing as "WONTFIX" ... this is documented for X12 if that ever happens.

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