1 files changed, 31 insertions, 0 deletions

diff --git a/linden/indra/llrender/llgl.h b/linden/indra/llrender/llgl.h
index cc7ebff..90642b3 100644
--- a/linden/indra/llrender/llgl.h
+++ b/linden/indra/llrender/llgl.h
@@ -359,6 +359,35 @@ protected:
         virtual void releaseName(GLuint name) = 0;
 };
 
+/*
+        Interface for objects that need periodic GL updates applied to them.
+        Used to synchronize GL updates with GL thread.
+*/
+class LLGLUpdate
+{
+public:
+
+        static std::list<LLGLUpdate*> sGLQ;
+
+        BOOL mInQ;
+        LLGLUpdate()
+                : mInQ(FALSE)
+        {
+        }
+        virtual ~LLGLUpdate()
+        {
+                if (mInQ)
+                {
+                        std::list<LLGLUpdate*>::iterator iter = std::find(sGLQ.begin(), sGLQ.end(), this);
+                        if (iter != sGLQ.end())
+                        {
+                                sGLQ.erase(iter);
+                        }
+                }
+        }
+        virtual void updateGL() = 0;
+};
+
 extern LLMatrix4 gGLObliqueProjectionInverse;
 
 #include "llglstates.h"
@@ -377,4 +406,6 @@ void parse_gl_version( S32* major, S32* minor, S32* release, std::string* vendor
 
 extern BOOL gClothRipple;
 extern BOOL gNoRender;
+extern BOOL gGLActive;
+
 #endif // LL_LLGL_H