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| author | Gunnar Sletta <gunnar@trolltech.com> | 2009-04-23 07:16:53 (GMT) |
|---|---|---|
| committer | Gunnar Sletta <gunnar@trolltech.com> | 2009-04-24 08:47:39 (GMT) |
| commit | 861651c67a5f627f615ac1542f945e3c11593406 (patch) | |
| tree | 35d4d9a9d9343ddf4751fd1b51931f491c8a58f2 /doc/src/snippets/code/doc_src_compiler-notes.qdoc | |
| parent | 89aa644baabd8a118a59cb367aca2adf1363564e (diff) | |
| download | Qt-861651c67a5f627f615ac1542f945e3c11593406.zip Qt-861651c67a5f627f615ac1542f945e3c11593406.tar.gz Qt-861651c67a5f627f615ac1542f945e3c11593406.tar.bz2 | |
Implement QRasterPaintEngine::clip(QRegion) to do something sensible...
Since we now store QRegion's in the clipdata is possible for us to
detect that we should go back to a rect-clip mode when we get to
clip(region) or clip(rect)
It turns out that the qt_span_fill_clipRegion is very slow, even for
smaller regions, testcase was 3 rects, its 10% worse than span based
clipping. For a fullscreen ellipse it was more in the range of 100x
worse, so I removed the clip function entirely.
Diffstat (limited to 'doc/src/snippets/code/doc_src_compiler-notes.qdoc')
0 files changed, 0 insertions, 0 deletions