Created attachment 76011 [details] sample svg Attach .svg is incredibly slow to resize and rescale. Appears to me to be much faster in 3.6.5
caolanm->thb: any suggestions ?
Getting lots of #5 0x00007ffff0dbbce1 in XGetImage () from /usr/lib64/libX11.so.6 #6 0x00007fffe6378691 in X11SalBitmap::ImplCreateDIB(unsigned long, SalX11Screen, long, long, long, long, long, bool) () from /build/tdf/libo-work/solver/unxlngx6.pro/installation/opt/program/libvclplug_genlo.so #7 0x00007fffe6379241 in X11SalBitmap::AcquireBuffer(bool) () from /build/tdf/libo-work/solver/unxlngx6.pro/installation/opt/program/libvclplug_genlo.so #8 0x00007ffff363b371 in BitmapReadAccess::ImplCreate(Bitmap&) () from /build/tdf/libo-work/solver/unxlngx6.pro/installation/opt/program/libvcllo.so #9 0x00007ffff363b6b4 in BitmapReadAccess::BitmapReadAccess(Bitmap&) () from /build/tdf/libo-work/solver/unxlngx6.pro/installation/opt/program/libvcllo.so #10 0x00007ffff3631319 in Bitmap::AcquireReadAccess() () from /build/tdf/libo-work/solver/unxlngx6.pro/installation/opt/program/libvcllo.so #11 0x00007ffff3623a7d in Bitmap::ImplMakeGreyscales(unsigned short) () from /build/tdf/libo-work/solver/unxlngx6.pro/installation/opt/program/libvcllo.so #12 0x00007ffff362599d in Bitmap::Convert(BmpConversion) () from /build/tdf/libo-work/solver/unxlngx6.pro/installation/opt/program/libvcllo.so #13 0x00007ffff361bbac in AlphaMask::AlphaMask(Bitmap const&) () from /build/tdf/libo-work/solver/unxlngx6.pro/installation/opt/program/libvcllo.so #14 0x00007ffff248a242 in drawinglayer::impBufferDevice::paint (this=0x7fffffff6580, fTrans=0) at /build/tdf/libo-work/drawinglayer/source/processor2d/vclhelperbufferdevice.cxx:301 #15 0x00007ffff249e33a in drawinglayer::processor2d::VclProcessor2D::RenderTransparencePrimitive2D (this=0x242eac0, rTransCandidate=...) at /build/tdf/libo-work/drawinglayer/source/processor2d/vclprocessor2d.cxx:1050 here - all called from VclProcessor2D::RenderMaskPrimitive2DPixel. Rendering to a bitmap, then getting the content, converting it to an alpha mask. Extra-slow when going via X server...
I can confirm this bug on 4.0.2.1 pre-release / Ubuntu 12.04.2 LTS but not on LO 3.6.5.2. General SVG display performance seems to have drastically decreased with 4.x. See here for a related bugreport: https://bugassistant.libreoffice.org/show_bug.cgi?id=61230
(In reply to comment #0) > Created attachment 76011 [details] > sample svg > > Attach .svg is incredibly slow to resize and rescale. Appears to me to be > much faster in 3.6.5 Caolán, Look at bug 62461 please -- ape
I can confirm this issue with 4.0.1.2 on Fedora i686. The performance of svg, as well as other images (especially big-size images and/or when they are in big documents) is very poor.
The issue (very slow scrolling with svg images) is still there with LibreOffice 5.0.2.2 on Ubuntu 15.10. Additional information: - same issue with or without OpenGL rendering - a bit faster with antialiasing disabled, but still slow
Testing resize of inserted SVG in writer: the speed is equal in 3.6 and 5.4. Please give it more testing and close as WORKSFORME, if you agree. Arch Linux 64-bit, KDE Plasma 5 Version: 5.4.0.0.alpha0+ Build ID: 6c2b8cb5b136b63b3ea295528b845d37b5dd9000 CPU Threads: 8; OS Version: Linux 4.8; UI Render: default; VCL: kde4; Locale: fi-FI (fi_FI.UTF-8); Calc: group Built on December 28th 2016 Arch Linux 64-bit Version 3.6.7.2 (Build ID: e183d5b)
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Version: 6.3.0.0.alpha0+ (x64) Build ID: 0f25a3c36f27fd51453b9a9115f236b83c143684 CPU threads: 8; OS: Windows 10.0; UI render: GL; VCL: win; TinderBox: Win-x86_64@42, Branch:master, Time: 2018-11-27_20:06:55 Locale: zh-TW (zh_TW); UI-Language: en-US Calc: threaded Bug not reproducible in version