diff options
Diffstat (limited to 'tdegtk/tqtcairopainter.cpp')
| -rw-r--r-- | tdegtk/tqtcairopainter.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tdegtk/tqtcairopainter.cpp b/tdegtk/tqtcairopainter.cpp index a2867f0..677d9c7 100644 --- a/tdegtk/tqtcairopainter.cpp +++ b/tdegtk/tqtcairopainter.cpp @@ -149,6 +149,11 @@ void TQt3CairoPaintDevice::resetIntermediateSurface() { m_intermediateSurface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height); } +// FIXME +// transferIntermediateSurface should only be used when clipping is active or ROP != CopyROP +// Cairo however does not allow the target surface of a context to be switched, effectively preventing +// direct drawing with dynamic switching to and from the intermediate surface on clip or ROP set/unset +// See upstream Cairo bug report https://bugs.freedesktop.org/show_bug.cgi?id=57289 void TQt3CairoPaintDevice::transferIntermediateSurface() { bool overlayMerge = true; cairo_surface_flush(m_intermediateSurface); |