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nux  3.0.0
IOpenGLPixelBufferOject.h
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00001 /*
00002  * Copyright 2010 Inalogic® Inc.
00003  *
00004  * This program is free software: you can redistribute it and/or modify it
00005  * under the terms of the GNU Lesser General Public License, as
00006  * published by the  Free Software Foundation; either version 2.1 or 3.0
00007  * of the License.
00008  *
00009  * This program is distributed in the hope that it will be useful, but
00010  * WITHOUT ANY WARRANTY; without even the implied warranties of
00011  * MERCHANTABILITY, SATISFACTORY QUALITY or FITNESS FOR A PARTICULAR
00012  * PURPOSE.  See the applicable version of the GNU Lesser General Public
00013  * License for more details.
00014  *
00015  * You should have received a copy of both the GNU Lesser General Public
00016  * License along with this program. If not, see <http://www.gnu.org/licenses/>
00017  *
00018  * Authored by: Jay Taoko <jaytaoko@inalogic.com>
00019  *
00020  */
00021 
00022 
00023 #ifndef IOPENGLPIXELBUFFEROBJECT_H
00024 #define IOPENGLPIXELBUFFEROBJECT_H
00025 
00026 namespace nux
00027 {
00028 
00029   class IOpenGLPixelBufferObject: public IOpenGLResource
00030   {
00031     NUX_DECLARE_OBJECT_TYPE(IOpenGLPixelBufferObject, IOpenGLResource);
00032 
00033   public:
00034     virtual ~IOpenGLPixelBufferObject();
00035 
00036     int Lock(
00037       unsigned int OffsetToLock,
00038       unsigned int SizeToLock,
00039       void **ppbData);
00040     int Unlock();
00041 
00042     int GetDescription(INDEXBUFFER_DESC *desc) const
00043     {
00044       desc->Usage = _Usage;
00045       desc->Size = _Length;
00046       return OGL_OK;
00047     }
00048 
00049     void BindPackPixelBufferObject();
00050     void BindUnpackPixelBufferObject();
00051 
00052     unsigned int GetSize();
00053 
00054   private:
00055     IOpenGLPixelBufferObject(unsigned int Size, VBO_USAGE Usage, NUX_FILE_LINE_PROTO);
00056 
00057     unsigned int _Length;
00058     VBO_USAGE _Usage;
00059 
00060     BYTE *_MemMap;
00061     unsigned int  _OffsetToLock;
00062     unsigned int  _SizeToLock;
00063     friend class GpuDevice;
00064   };
00065 
00066 }
00067 
00068 #endif // IOPENGLPIXELBUFFEROJECT_H