vcl/inc/opengl/zone.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #ifndef INCLUDED_VCL_INC_OPENGL_ZONE_H
  11 #define INCLUDED_VCL_INC_OPENGL_ZONE_H
  12
  13 #include <sal/config.h>
  14 #include <sal/types.h>
  15 #include <vcl/dllapi.h>
  16
  17 class OpenGLZoneTest;
  18 class OpenGLWatchdogThread;
  19
  20 /**
  21  * We want to be able to detect if a given crash came
  22  * from the OpenGL code, so use this helper to track that.
  23  */
  24 class OpenGLZone {
  25     friend class OpenGLZoneTest;
  26     friend class OpenGLWatchdogThread;
  27     friend class OpenGLSalGraphicsImpl;
  28
  29     /// how many times have we entered a GL zone
  30     static volatile sal_uInt64 gnEnterCount;
  31     /// how many times have we left a new GL zone
  32     static volatile sal_uInt64 gnLeaveCount;
  33
  34     static VCL_DLLPUBLIC void enter();
  35     static VCL_DLLPUBLIC void leave();
  36 public:
  37      OpenGLZone() { gnEnterCount++; }
  38     ~OpenGLZone() { gnLeaveCount++; }
  39     static bool isInZone() { return gnEnterCount != gnLeaveCount; }
  40     static void hardDisable();
  41 };
  42
  43 #endif // INCLUDED_VCL_INC_OPENGL_ZONE_H
  44
  45 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */