From: vsv <vitaly.smetannikov@opencascade.com>
Date: Wed, 28 Dec 2016 11:42:36 +0000 (+0300)
Subject: Issue #1937: Check that VBO array is initialized
X-Git-Tag: V_2.7.0~351^2~27
X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=a5e1d696acf3d11187bd2104d1b5e92c75a12ee0;p=modules%2Fshaper.git

Issue #1937: Check that VBO array is initialized
---

diff --git a/src/SketcherPrs/SketcherPrs_SymbolPrs.cpp b/src/SketcherPrs/SketcherPrs_SymbolPrs.cpp
index cb9e5990b..8a3a0fa7a 100644
--- a/src/SketcherPrs/SketcherPrs_SymbolPrs.cpp
+++ b/src/SketcherPrs/SketcherPrs_SymbolPrs.cpp
@@ -64,10 +64,13 @@ public:
       // Update points coordinate taking the viewer scale into account
       myObj->updateIfReadyToDisplay(MyDist * aScale);
       if (myIsVboInit) {
-        const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext();
-        Handle(Graphic3d_Buffer) aAttr = myObj->myPntArray->Attributes();
-        myVboAttribs->init(aCtx, 0, aAttr->NbElements,
-                           aAttr->Data(), GL_NONE, aAttr->Stride);
+        if (myVboAttribs) {
+          const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext();
+          Handle(Graphic3d_Buffer) aAttr = myObj->myPntArray->Attributes();
+          myVboAttribs->init(aCtx, 0, aAttr->NbElements,
+                             aAttr->Data(), GL_NONE, aAttr->Stride);
+        } else
+          myIsVboInit = false;
       } else {
         myAttribs = myObj->myPntArray->Attributes();
         myIndices = myObj->myPntArray->Indices();