<html> <head> <base href="https://bugs.documentfoundation.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - When there are a lot of pictures, typing the text is very slow (macOS/GTK3/GDI)" href="https://bugs.documentfoundation.org/show_bug.cgi?id=138068#c32">Comment # 32</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - When there are a lot of pictures, typing the text is very slow (macOS/GTK3/GDI)" href="https://bugs.documentfoundation.org/show_bug.cgi?id=138068">bug 138068</a> from <a class="email" href="mailto:l.lunak@collabora.com" title="Luboš Luňák <l.lunak@collabora.com>"> Luboš Luňák</a> <pre>(In reply to Armin Le Grand from <a href="show_bug.cgi?id=138068#c30">comment #30</a>) > Main problem seems to be that I preferred DrawTransformBitmapExDirect in > vcl/source/outdev/bitmap.cxx cmpared to ther versions, that is the only > thing that can influence stuff besides cairo. I confirm, it's really just this part that causes the performance problem. So <a href="https://gerrit.libreoffice.org/c/core/+/110716">https://gerrit.libreoffice.org/c/core/+/110716</a> should be enough for this bugreport. (In reply to Noel Grandin from <a href="show_bug.cgi?id=138068#c31">comment #31</a>) > For reference, the Caolan caching I was talking about was commit > 9f3926df5c2828ad3e8cfce2b4444b1c84352cf4, <a class="bz_bug_link bz_status_VERIFIED bz_closed" title="VERIFIED FIXED - Slow typing in document with pictures (gtk3 under X)" href="show_bug.cgi?id=123165">tdf#123165</a>, which is pretty much > the same bug as this one That's not a Writer cache though, that's a cache for the best quality BitmapEx::Scale() algorithm. So I assume what's happened was that Armin's patch made DrawTransformBitmapExDirect() preferred to DrawBitmapEx() that does BitmapEx::Scale() internally, but all backend implementations for DrawTransformBitmapExDirect() except the Skia one use uncached and possibly slow platform API for the scaling, hence the slowdown.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>