Line data    Source code

       1             : 
       2             : /* Copyright (c) 2007-2016, Stefan Eilemann <eile@equalizergraphics.com>
       3             :  *
       4             :  * This library is free software; you can redistribute it and/or modify it under
       5             :  * the terms of the GNU Lesser General Public License version 2.1 as published
       6             :  * by the Free Software Foundation.
       7             :  *
       8             :  * This library is distributed in the hope that it will be useful, but WITHOUT
       9             :  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
      10             :  * FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
      11             :  * details.
      12             :  *
      13             :  * You should have received a copy of the GNU Lesser General Public License
      14             :  * along with this library; if not, write to the Free Software Foundation, Inc.,
      15             :  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
      16             :  */
      17             : 
      18             : #ifndef EQSERVER_CHANNELUPDATEVISITOR_H
      19             : #define EQSERVER_CHANNELUPDATEVISITOR_H
      20             : 
      21             : #include "compoundVisitor.h" // base class
      22             : #include "types.h"
      23             : 
      24             : #include <eq/fabric/eye.h>         // member
      25             : 
      26             : namespace eq
      27             : {
      28             : namespace server
      29             : {
      30             : 
      31             : /** The compound visitor generating the draw tasks for a channel. */
      32             : class ChannelUpdateVisitor : public CompoundVisitor
      33             : {
      34             : public:
      35             :     ChannelUpdateVisitor( Channel* channel, const uint128_t frameID,
      36             :                           const uint32_t frameNumber );
      37           0 :     virtual ~ChannelUpdateVisitor() {}
      38             : 
      39           0 :     void setEye( const fabric::Eye eye ) { _eye = eye; }
      40             : 
      41             :     /** Visit a non-leaf compound on the down traversal. */
      42             :     virtual VisitorResult visitPre( const Compound* compound );
      43             :     /** Visit a leaf compound. */
      44             :     virtual VisitorResult visitLeaf( const Compound* compound );
      45             :     /** Visit a non-leaf compound on the up traversal. */
      46             :     virtual VisitorResult visitPost( const Compound* compound );
      47             : 
      48           0 :     bool isUpdated() const { return _updated; }
      49             : 
      50             : private:
      51             :     Channel*        _channel;
      52             :     fabric::Eye     _eye;
      53             :     const uint128_t _frameID;
      54             :     const uint32_t  _frameNumber;
      55             :     bool            _updated;
      56             : 
      57             :     bool _skipCompound( const Compound* compound );
      58             :     void _sendClear( const RenderContext& context );
      59             : 
      60             :     void _updateDraw( const Compound* compound,
      61             :                       const RenderContext& context );
      62             :     void _updateDrawTiles( const Compound* compound,
      63             :                            const RenderContext& context );
      64             :     void _updateDrawFinish( const Compound* compound ) const;
      65             :     void _updateFrameRate( const Compound* compound ) const;
      66             : 
      67             :     uint32_t _getDrawBuffer( const Compound* compound ) const;
      68             :     fabric::ColorMask _getDrawBufferMask( const Compound* compound ) const;
      69             : 
      70             :     RenderContext _setupRenderContext( const Compound* compound );
      71             : 
      72             :     void _updatePostDraw( const Compound* compound,
      73             :                           const fabric::RenderContext& context );
      74             :     void _updateAssemble( const Compound* compound,
      75             :                           const fabric::RenderContext& context );
      76             :     void _updateReadback( const Compound* compound,
      77             :                           const fabric::RenderContext& context );
      78             :     void _updateViewStart( const Compound* compound,
      79             :                            const fabric::RenderContext& context );
      80             :     void _updateViewFinish( const Compound* compound,
      81             :                             const fabric::RenderContext& context );
      82             : };
      83             : }
      84             : }
      85             : #endif // EQSERVER_CONSTCOMPOUNDVISITOR_H