Blender V2.61 - r43446

btSoftBodySolverVertexBuffer.h

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00001 /*
00002 Bullet Continuous Collision Detection and Physics Library
00003 Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
00004 
00005 This software is provided 'as-is', without any express or implied warranty.
00006 In no event will the authors be held liable for any damages arising from the use of this software.
00007 Permission is granted to anyone to use this software for any purpose, 
00008 including commercial applications, and to alter it and redistribute it freely, 
00009 subject to the following restrictions:
00010 
00011 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
00012 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
00013 3. This notice may not be removed or altered from any source distribution.
00014 */
00015 
00016 #ifndef BT_SOFT_BODY_SOLVER_VERTEX_BUFFER_H
00017 #define BT_SOFT_BODY_SOLVER_VERTEX_BUFFER_H
00018 
00019 
00020 class btVertexBufferDescriptor
00021 {
00022 public:
00023     enum BufferTypes
00024     {
00025         CPU_BUFFER,
00026         DX11_BUFFER,
00027         OPENGL_BUFFER
00028     };
00029 
00030 protected:  
00031 
00032     bool m_hasVertexPositions;
00033     bool m_hasNormals;
00034 
00035     int m_vertexOffset;
00036     int m_vertexStride;
00037 
00038     int m_normalOffset;
00039     int m_normalStride;
00040 
00041 public:
00042     btVertexBufferDescriptor()
00043     {
00044         m_hasVertexPositions = false;
00045         m_hasNormals = false;
00046         m_vertexOffset = 0;
00047         m_vertexStride = 0;
00048         m_normalOffset = 0;
00049         m_normalStride = 0;
00050     }
00051 
00052     virtual ~btVertexBufferDescriptor()
00053     {
00054 
00055     }
00056 
00057     virtual bool hasVertexPositions() const
00058     {
00059         return m_hasVertexPositions;
00060     }
00061 
00062     virtual bool hasNormals() const
00063     {
00064         return m_hasNormals;
00065     }
00066 
00070     virtual BufferTypes getBufferType() const = 0;
00071 
00075     virtual int getVertexOffset() const
00076     {
00077         return m_vertexOffset;
00078     }
00079 
00083     virtual int getVertexStride() const
00084     {
00085         return m_vertexStride;
00086     }
00087 
00091     virtual int getNormalOffset() const
00092     {
00093         return m_normalOffset;
00094     }
00095 
00099     virtual int getNormalStride() const
00100     {
00101         return m_normalStride;
00102     }
00103 };
00104 
00105 
00106 class btCPUVertexBufferDescriptor : public btVertexBufferDescriptor
00107 {
00108 protected:
00109     float *m_basePointer;
00110 
00111 public:
00117     btCPUVertexBufferDescriptor( float *basePointer, int vertexOffset, int vertexStride )
00118     {
00119         m_basePointer = basePointer;
00120         m_vertexOffset = vertexOffset;
00121         m_vertexStride = vertexStride;
00122         m_hasVertexPositions = true;
00123     }
00124 
00130     btCPUVertexBufferDescriptor( float *basePointer, int vertexOffset, int vertexStride, int normalOffset, int normalStride )
00131     {
00132         m_basePointer = basePointer;
00133 
00134         m_vertexOffset = vertexOffset;
00135         m_vertexStride = vertexStride;
00136         m_hasVertexPositions = true;
00137 
00138         m_normalOffset = normalOffset;
00139         m_normalStride = normalStride;
00140         m_hasNormals = true;
00141     }
00142 
00143     virtual ~btCPUVertexBufferDescriptor()
00144     {
00145 
00146     }
00147 
00151     virtual BufferTypes getBufferType() const
00152     {
00153         return CPU_BUFFER;
00154     }
00155 
00159     virtual float *getBasePointer() const
00160     {
00161         return m_basePointer;
00162     }
00163 };
00164 
00165 #endif // #ifndef BT_SOFT_BODY_SOLVER_VERTEX_BUFFER_H