nux-0.9.48

NuxGraphics/IOpenGLVertexBuffer.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 IOPENGLVERTEXBUFFER_H
00024 #define IOPENGLVERTEXBUFFER_H
00025 
00026 namespace nux
00027 {
00028 
00029   class IOpenGLResource;
00030   class IOpenGLVertexBuffer: public IOpenGLResource
00031   {
00032     NUX_DECLARE_OBJECT_TYPE (IOpenGLVertexBuffer, IOpenGLResource);
00033 
00034   public:
00035     virtual ~IOpenGLVertexBuffer();
00036 
00037     int Lock (
00038       t_u32 OffsetToLock,
00039       t_u32 SizeToLock,
00040       void **ppbData);
00041     int Unlock();
00042 
00043     int GetDescription (VERTEXBUFFER_DESC *desc) const
00044     {
00045       desc->Usage = _Usage;
00046       desc->Size = _Length;
00047       return OGL_OK;
00048     }
00049 
00050     void BindVertexBuffer();
00051     t_u32 GetSize();
00052 
00053   private:
00054     IOpenGLVertexBuffer (t_u32 Length, VBO_USAGE Usage, NUX_FILE_LINE_PROTO);
00055 
00056     t_u32 _Length;
00057     VBO_USAGE _Usage;
00058 
00059     BYTE *_MemMap;
00060     t_u32  _OffsetToLock;
00061     t_u32  _SizeToLock;
00062     friend class GpuDevice;
00063   };
00064 
00065 }
00066 
00067 #endif // IOPENGLVERTEXBUFFER_H