Source/Base/FieldContainer/Threading/OSGHardwareContextThread.h

   1 /*---------------------------------------------------------------------------*\
   2  *                                OpenSG                                     *
   3  *                                                                           *
   4  *                                                                           *
   5  *               Copyright (C) 2000-2006 by the OpenSG Forum                 *
   6  *                                                                           *
   7  *                            www.opensg.org                                 *
   8  *                                                                           *
   9  *   contact: dirk@opensg.org, gerrit.voss@vossg.org, jbehr@zgdv.de          *
  10  *                                                                           *
  11 \*---------------------------------------------------------------------------*/
  12 /*---------------------------------------------------------------------------*\
  13  *                                License                                    *
  14  *                                                                           *
  15  * This library is free software; you can redistribute it and/or modify it   *
  16  * under the terms of the GNU Library General Public License as published    *
  17  * by the Free Software Foundation, version 2.                               *
  18  *                                                                           *
  19  * This library is distributed in the hope that it will be useful, but       *
  20  * WITHOUT ANY WARRANTY; without even the implied warranty of                *
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         *
  22  * Library General Public License for more details.                          *
  23  *                                                                           *
  24  * You should have received a copy of the GNU Library General Public         *
  25  * License along with this library; if not, write to the Free Software       *
  26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                 *
  27  *                                                                           *
  28 \*---------------------------------------------------------------------------*/
  29 /*---------------------------------------------------------------------------*\
  30  *                                Changes                                    *
  31  *                                                                           *
  32  *                                                                           *
  33  *                                                                           *
  34  *                                                                           *
  35  *                                                                           *
  36  *                                                                           *
  37 \*---------------------------------------------------------------------------*/
  38
  39 #ifndef _OSGHARDWARECONTEXTTHREAD_H_
  40 #define _OSGHARDWARECONTEXTTHREAD_H_
  41 #ifdef __sgi
  42 #pragma once
  43 #endif
  44
  45 #include "OSGBaseDef.h"
  46 #include "OSGThread.h"
  47 #include "OSGHardwareContextTask.h"
  48
  49 OSG_BEGIN_NAMESPACE
  50
  51 class HardwareContext;
  52
  53 /*! \ingroup GrpBaseMemoryObjectsBase
  54     \ingroup GrpBaseHardwareContext
  55     \ingroup GrpLibOSGBase
  56 */
  57
  58 class OSG_BASE_DLLMAPPING HardwareContextThread : public Thread
  59 {
  60
  61     /*==========================  PUBLIC  =================================*/
  62
  63   public:
  64
  65     OSG_GEN_INTERNAL_MEMOBJPTR(HardwareContextThread);
  66
  67     /*---------------------------------------------------------------------*/
  68     /*! \name                 Reference Counting                           */
  69     /*! \{                                                                 */
  70
  71     static ObjTransitPtr          get (Char8 *szName, bool bGlobal);
  72     static HardwareContextThread *find(Char8 *szName              );
  73
  74     /*---------------------------------------------------------------------*/
  75     /*! \name                 Reference Counting                           */
  76     /*! \{                                                                 */
  77
  78     bool isRunning (void           );
  79     void endRunning(void           );
  80
  81     /*! \}                                                                 */
  82     /*---------------------------------------------------------------------*/
  83     /*! \name                   Constructors                               */
  84     /*! \{                                                                 */
  85
  86     void queueTask     (HardwareContextTask *pTask);
  87     void queueTaskFront(HardwareContextTask *pTask);
  88
  89     /*! \}                                                                 */
  90     /*---------------------------------------------------------------------*/
  91     /*! \name                 Debugging, don't use                         */
  92     /*! \{                                                                 */
  93
  94     void dumpTasks(void);
  95     void runTasks (void);
  96
  97     /*! \}                                                                 */
  98     /*=========================  PROTECTED  ===============================*/
  99
 100   protected:
 101
 102     typedef Thread             Inherited;
 103
 104     static  MPThreadType      _type;
 105
 106     bool                      _bRunning;
 107     DrawEnv                  *_pEnv;
 108     HardwareContextTaskQueue  _qTaskQueue;
 109     HardwareContext          *_pContext;
 110
 111     /*---------------------------------------------------------------------*/
 112     /*! \name                 Reference Counting                           */
 113     /*! \{                                                                 */
 114
 115     static BaseThread *create(const Char8  *szName,
 116                                     UInt32  uiId,
 117                                     bool    bGlobal);
 118
 119     /*! \}                                                                 */
 120     /*---------------------------------------------------------------------*/
 121     /*! \name                   Constructors                               */
 122     /*! \{                                                                 */
 123
 124     HardwareContextThread(const Char8 *szName, UInt32 uiId, bool bGlobal);
 125
 126     /*! \}                                                                 */
 127     /*---------------------------------------------------------------------*/
 128     /*! \name                   Destructor                                 */
 129     /*! \{                                                                 */
 130
 131     virtual ~HardwareContextThread(void);
 132
 133     /*! \}                                                                 */
 134     /*---------------------------------------------------------------------*/
 135     /*! \name                   Destructor                                 */
 136     /*! \{                                                                 */
 137
 138     virtual void workProc(void);
 139
 140     /*! \}                                                                 */
 141     /*---------------------------------------------------------------------*/
 142     /*! \name                   Constructors                               */
 143     /*! \{                                                                 */
 144
 145     void setContext(HardwareContext *pContext);
 146
 147     /*! \}                                                                 */
 148    /*==========================  PRIVATE  ================================*/
 149
 150   private:
 151
 152     friend class HardwareContext;
 153
 154     /*!\brief prohibit default function (move to 'public' if needed) */
 155     HardwareContextThread(const HardwareContextThread &source);
 156     void operator =(const HardwareContextThread &source);
 157 };
 158
 159 OSG_GEN_MEMOBJPTR(HardwareContextThread);
 160
 161 OSG_END_NAMESPACE
 162
 163 #include "OSGHardwareContextThread.inl"
 164
 165 #endif /* _OSGHARDWARECONTEXTTHREAD_H_ */