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May 6, 2012, 4:05 AM
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Ticket #10695: [PATCH] libmythui: Fix a redraw bug in MythUIType
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#10695: [PATCH] libmythui: Fix a redraw bug in MythUIType
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Reporter: Lawrence Rust <lvr@…> | Type: Patch - Bug Fix
Status: new | Priority: minor
Milestone: unknown | Component: MythTV - General
Version: Master Head | Severity: medium
Keywords: keypress redraw tearfree | Ticket locked: 0
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While evaluating the ATI Catalyst driver 'TearFree Desktop' option I
noticed that sometimes a keypress was apparently being held up until the
time on the main menu was updated. Initially I thought that this was a
lirc or fglrx issue, but on investigation it turned out that
MythMainWindow::animate was requesting updates for empty repaint regions.
Delving further showed that MythUIType::Draw was resetting m_DirtyRegion
to empty even if the clipRect was smaller, thus leaving unpainted regions.
m_DirtyRegion may be extended by HandleMovementPulse, SetRedraw or
SetChildNeedsRedraw etc AFTER GetDirtyArea is called. So when
MythUIType::Draw is called, clipRect may not include the whole of
m_DirtyRegion.
This patch subtracts the Draw clipRect from m_DirtyRegion instead of
simply emtying it.
--
Ticket URL: <http://code.mythtv.org/trac/ticket/10695>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center
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Ticket #10695: [PATCH] libmythui: Fix a redraw bug in MythUIType
