mi32/mg2rastt.h

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/******************************************************************************
 * \file mi32/mg2rastt.h
 * \brief MGD::DEVICE_RASTER_TRANS_MASK definitions.
 *
 * \if NODOC
 * $Log: mg2rastt.h_v $
 * Revision 1.15  2012/02/20 18:40:55  mju
 * Nest context from base.
 *
 * Revision 1.14  2011/11/02 14:03:42  mju
 * Remove redundant hdr.
 *
 * Revision 1.13  2011/10/26 17:58:22  mju
 * Frame buffer support.
 *
 * Revision 1.12  2011/10/25 17:16:24  mju
 * Derive from device_mem32rgba so properly handles transparency blending.
 *
 * Revision 1.11  2009/08/31 15:14:32  mju
 * Use getObjItem.
 *
 * Revision 1.10  2006/04/14 21:16:10  mju
 * Redesign to use rvc classes and mem32 base.
 *
 * Revision 1.9  2003/12/15 23:37:29  dwilliss
 * Diverging for 7.0
 * Made changes necessary for graphical data tips
 *
 * Revision 1.1  2001/07/11 17:33:50  dwilliss
 * Initial revision
 * \endif
 */

#ifndef INC_MI32_MG2RASTT_H
#define INC_MI32_MG2RASTT_H

#ifndef INC_MI32_MG2MEM32RGBA_H
#include <mi32/mg2mem32rgba.h>
#endif

#ifndef INC_RVC_OPACITYMASK_H
#include <rvc/opacitymask.h>
#endif

namespace MGD {

//=====================================================================================================================

class DEVICE_RASTER_TRANS_MASK: public DEVICE_MEM32RGBA {

   public:

      DEVICE_RASTER_TRANS_MASK ();

      virtual ~DEVICE_RASTER_TRANS_MASK ();

      // (Note: copy constructor private and unimplemented.  Can't copy one.)

      ERRVALUE Create (
         RVC::OBJECT& ParentObject,
         const RVC::DESCRIPTOR& Descriptor,
         RVC::RASTER::MAKEPARMS& MakeParms,
         const RVC::CREDENTIALS* Credentials = 0
         );

      ERRVALUE Create (
         RVC::OBJITEM& ObjItem,
         RVC::RASTER::MAKEPARMS& MakeParms,
         const RVC::CREDENTIALS* Credentials = 0
         );

      ERRVALUE GetObjItemRaster (
         RVC::OBJITEM& ObjItem
         ) const { return (m_ObjRaster.GetObjItem(ObjItem)); }

      ERRVALUE GetObjItemMask (
         RVC::OBJITEM& ObjItem
         ) const { return (m_ObjMask.GetObjItem(ObjItem)); }

      ERRVALUE Open (
         const RVC::OBJITEM& ObjItem,
         const RVC::CREDENTIALS* Credentials = 0
         );

   protected:

      class CONTEXT : public DEVICE_MEM32RGBA::CONTEXT {
         public:

            virtual ~CONTEXT ();

         protected:

            CONTEXT (
               DEVICE_RASTER_TRANS_MASK *pDevice
               );

         private:
            #ifndef GENERATING_DOXYGEN_OUTPUT
            CONTEXT(const CONTEXT&);

            friend class MGD::DEVICE_RASTER_TRANS_MASK;
            #endif // GENERATING_DOXYGEN_OUTPUT
         
         };

      virtual UINT8* v_GetImagePointer (
         INT32 x,
         INT32 y,
         INT32 len,
         UINT16 FrameBuffer
         );

      virtual UINT8* v_GetImagePointerNoRead (
         INT32 x,
         INT32 y,
         INT32 len,
         UINT16 FrameBuffer
         );
      
      virtual ERRVALUE v_WriteImageBuffer (
         INT32 x,
         INT32 y,
         INT32 len,
         UINT8 *buf,
         UINT16 FrameBuffer
         );

   private:
      #ifndef GENERATING_DOXYGEN_OUTPUT
      friend class CONTEXT;

      DEVICE_RASTER_TRANS_MASK(const DEVICE_RASTER_TRANS_MASK&);

      RVC::RASTER m_ObjRaster;
      RVC::OPACITYMASK m_ObjMask;
      int m_TileSizeX;
      int m_TileSizeY;
      bool m_bUseMemory;
      bool m_bDirty;

      SIMPLE_ARRAY<UINT8> m_pixbuf;
      SIMPLE_ARRAY<UINT8> m_rastbuf;
      SIMPLE_ARRAY<UINT8> m_maskbuf;

      ERRVALUE ReadPixArray ();
      ERRVALUE ReadSpan (UINT8 *pixbuf, INT32 row, INT32 col, INT32 ncols);
      ERRVALUE WritePixArray ();
      ERRVALUE WriteSpan (const UINT8 *pixbuf, INT32 row, INT32 col, INT32 ncols);

      virtual MGD::CONTEXT* v_CreateContext ();

      #endif // GENERATING_DOXYGEN_OUTPUT

   };

//=====================================================================================================================

} // End of namespace MGD


#endif   // INC_MI32_MG2RASTT_H

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