diff options
| author | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2012-11-21 20:28:05 -0600 |
|---|---|---|
| committer | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2012-11-21 20:28:05 -0600 |
| commit | 66e7613e89b623e9a7b3354918090998ecaf8bfd (patch) | |
| tree | e6150b7def8072083812e2b499c9be7a28da8424 | |
| parent | 25eb56b1afbf770ece64541bff15893bf909ce1a (diff) | |
| download | gtk3-tqt-engine-66e7613e89b623e9a7b3354918090998ecaf8bfd.tar.gz gtk3-tqt-engine-66e7613e89b623e9a7b3354918090998ecaf8bfd.zip | |
Add comment
| -rw-r--r-- | tdegtk/tqtcairopainter.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tdegtk/tqtcairopainter.cpp b/tdegtk/tqtcairopainter.cpp index 041e076..4c64df8 100644 --- a/tdegtk/tqtcairopainter.cpp +++ b/tdegtk/tqtcairopainter.cpp @@ -159,6 +159,9 @@ void TQt3CairoPaintDevice::resetIntermediateSurface() { // 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 +// NOTE +// This has been worked around by applying the same transformations, saves, and restores to both the device and intermediate surface contexts +// If there is not much performance penalty from doing so, this method should probably be left alone void TQt3CairoPaintDevice::transferIntermediateSurface() { bool overlayMerge = true; cairo_surface_flush(m_intermediateSurface); |