From 0bea1d80d10a1e3e9bebf958d622ff2fb480e886 Mon Sep 17 00:00:00 2001
From: Michael Meeks <michael.meeks@collabora.com>
Date: Tue, 6 Jan 2015 16:09:09 +0000
Subject: vcl: reset OpenGLContext(s) when yielding the last SolarMutex.

This should make OpenGL thread-safe to allow multiple threads to
render using VCL's OpenGL backend, and fix misc. associated driver
horrors, will give some performance cost for tight Yield loops.

Change-Id: Ib23702262fd9f0925a5ed8c642d0a26e92136b37
---
 vcl/win/source/app/salinst.cxx | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'vcl/win/source')

diff --git a/vcl/win/source/app/salinst.cxx b/vcl/win/source/app/salinst.cxx
index 9e284eb819c9..1091856fd962 100644
--- a/vcl/win/source/app/salinst.cxx
+++ b/vcl/win/source/app/salinst.cxx
@@ -28,6 +28,7 @@
 
 #include <vcl/apptypes.hxx>
 #include <vcl/opengl/OpenGLHelper.hxx>
+#include <vcl/opengl/OpenGLContext.hxx>
 #include <vcl/timer.hxx>
 
 #include <opengl/salbmp.hxx>
@@ -148,6 +149,8 @@ void SalYieldMutex::release()
         {
             if ( mnCount == 1 )
             {
+                OpenGLContext::resetAllContexts();
+
                 // If we don't call these message, the Output from the
                 // Java clients doesn't come in the right order
                 GdiFlush();
-- 
cgit