commit 73f0c21801a3b549236edb04f6e9c4f92e2b8e4e
author Noel Grandin <noel.grandin@collabora.co.uk> Wed Jun 26 11:48:27 2019 +0200
committer Xisco Faulí <xiscofauli@libreoffice.org> Thu Jun 27 13:08:50 2019 +0200
tree 8a163f91710fc5e6e5350ebb40fdc18630eea63d
parent 1901a7312e6cb026facc2036b2a49a606d936bea

tdf#97925 writer, slow scrolling large RTF document

this document appears to have just enough fallback fonts on each page to
make the cache useless, so just bump up the size of the cache
considerably, since the cache key/values are really small

Change-Id: I4983de92f66410fee3f04e1e126b2ddb4ec2cbf9
Reviewed-on: https://gerrit.libreoffice.org/74735
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
(cherry picked from commit 573d3bbb7e836216dae6f684f4de77d0e46c50e3)
Reviewed-on: https://gerrit.libreoffice.org/74788
Reviewed-by: Xisco Faulí <xiscofauli@libreoffice.org>

vcl/unx/generic/fontmanager/fontsubst.cxx

diff --git a/vcl/unx/generic/fontmanager/fontsubst.cxx b/vcl/unx/generic/fontmanager/fontsubst.cxx
index 034f77b..3bc4431 100644
--- a/vcl/unx/generic/fontmanager/fontsubst.cxx
+++ b/vcl/unx/generic/fontmanager/fontsubst.cxx
@@ -145,9 +145,10 @@
    if( bHaveSubstitute )
    {
        rCachedFontMap.push_front(value_type(rFontSelData, aOut));
        //fairly arbitrary limit in this case, but I recall measuring max 8
        //fonts as the typical max amount of fonts in medium sized documents
        if (rCachedFontMap.size() > 8)
        // Fairly arbitrary limit in this case, but I recall measuring max 8
        // fonts as the typical max amount of fonts in medium sized documents, so make it
        // a fair chunk larger to accomodate weird documents./
        if (rCachedFontMap.size() > 256)
            rCachedFontMap.pop_back();
        rFontSelData = aOut;
    }