diff options
| author | Michael Meeks <michael.meeks@collabora.com> | 2015-09-16 03:25:05 +0100 |
|---|---|---|
| committer | Andras Timar <andras.timar@collabora.com> | 2015-09-19 21:32:19 +0200 |
| commit | fba72931db258ff3aa464932a2d75c55d340281f (patch) | |
| tree | 3c8eb44bf8bf89be542fefa0b1c25e33da81ebfc | |
| parent | 68b477e0ed2e2c5b59751b0b936c2b663be3c5b5 (diff) | |
tdf#94252 - avoid switching contexts un-necessarily to reduce flicker.
Change-Id: Id4ac387174fa03c5886a990d89fd53a4f18db11c
Reviewed-on: https://gerrit.libreoffice.org/18610
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Tor Lillqvist <tml@collabora.com>
| -rw-r--r-- | vcl/opengl/gdiimpl.cxx | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/vcl/opengl/gdiimpl.cxx b/vcl/opengl/gdiimpl.cxx index 37b21f36edc1..9ea8a7c87fc8 100644 --- a/vcl/opengl/gdiimpl.cxx +++ b/vcl/opengl/gdiimpl.cxx @@ -77,8 +77,17 @@ bool OpenGLSalGraphicsImpl::AcquireContext( ) { ImplSVData* pSVData = ImplGetSVData(); + // We always prefer to bind our VirtualDevice / offscreen graphics + // to the current OpenGLContext - to avoid switching contexts. + if (mpContext.is() && mbOffscreen) + { + if (OpenGLContext::hasCurrent() && !mpContext->isCurrent()) + mpContext.clear(); + } + if( mpContext.is() ) { + // Check whether the context was reset underneath us. if( mpContext->isInitialized() ) return true; mpContext.clear(); |