From ab2885575e5a6ef9ac1260107a39c2829baf1758 Mon Sep 17 00:00:00 2001 From: Oleksandr Shneyder Date: Thu, 3 Aug 2017 09:58:34 +0200 Subject: nxcomp: Set TokenSize to 1536 for link type ADSL and WAN. Improving non-xrender based browser scrolling behaviour when link type is set to ADSL or WAN. Backported from Arctica GH 3.6.x branch. v2: backport to nx-libs 3.5.0.x (Mihai Moldovan) Adds: - debian/patches/1300_nxcomp_Set-TokenSize-to-1536-for-lin.full+lite.patch --- ...p_Set-TokenSize-to-1536-for-lin.full+lite.patch | 61 ++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 debian/patches/1300_nxcomp_Set-TokenSize-to-1536-for-lin.full+lite.patch (limited to 'debian/patches/1300_nxcomp_Set-TokenSize-to-1536-for-lin.full+lite.patch') diff --git a/debian/patches/1300_nxcomp_Set-TokenSize-to-1536-for-lin.full+lite.patch b/debian/patches/1300_nxcomp_Set-TokenSize-to-1536-for-lin.full+lite.patch new file mode 100644 index 000000000..0baf27058 --- /dev/null +++ b/debian/patches/1300_nxcomp_Set-TokenSize-to-1536-for-lin.full+lite.patch @@ -0,0 +1,61 @@ +From 7d51cb6760b760768aeb91dd81f10443d094bd6c Mon Sep 17 00:00:00 2001 +From: Oleksandr Shneyder +Date: Thu, 29 Jun 2017 10:08:56 +0200 +Subject: [PATCH] nxcomp: Set TokenSize to 1536 for link type ADSL and WAN. + Improving non-xrender based browser scrolling behaviour when link type is + set to ADSL or WAN. + + In the 40-ies (talking about release version numbers), Firefox started + using the Skia library [1] for client-side rendering of browser content. + + With current versions of Firefox you can switch between libXrender based + rendering (esp. of Fonts) and Skia based rendering: + + gfx.xrender.enabled = true|false + + Some time around Firefox 52, the default for the gfx.xrender.enabled + setting got changed by Firefox upstream from true to false. So nowadays, + Firefox uses Skia by default. + + However, it turns out that Skia scales really badly on remote X11 + connections. Scrolling of long web pages becomes really jolty. + + Something similar could be observed earlier already when using + Chrome or Chromium (which also has been using Skia for some time + now). + + This change in nxcomp works around those issues and greatly + improves scrolling and general browser experience on medium + throughput networks (like cable modem, ADSL, HDSPA, slow LTE). + + [1] https://en.wikipedia.org/wiki/Skia_Graphics_Engine + + Fixes ArcticaProject/nx-libs#443. + + Backported from Arctica GH 3.6.x branch. + + v2: backport to nx-libs 3.5.0.x (Mihai Moldovan) +--- + nxcomp/Loop.cpp | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +--- a/nxcomp/Loop.cpp ++++ b/nxcomp/Loop.cpp +@@ -13017,7 +13017,7 @@ int SetLinkAdsl() + + control -> LinkMode = LINK_TYPE_ADSL; + +- control -> TokenSize = 512; ++ control -> TokenSize = 1536; + control -> TokenLimit = 24; + + control -> SplitMode = 1; +@@ -13047,7 +13047,7 @@ int SetLinkWan() + + control -> LinkMode = LINK_TYPE_WAN; + +- control -> TokenSize = 768; ++ control -> TokenSize = 1536; + control -> TokenLimit = 24; + + control -> SplitMode = 1; -- cgit v1.2.3