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shadervarcontext.h

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00001 /*
00002     Copyright (C) 2003 by Jorrit Tyberghein
00003               (C) 2003 by Frank Richter
00004 
00005     This library is free software; you can redistribute it and/or
00006     modify it under the terms of the GNU Library General Public
00007     License as published by the Free Software Foundation; either
00008     version 2 of the License, or (at your option) any later version.
00009 
00010     This library is distributed in the hope that it will be useful,
00011     but WITHOUT ANY WARRANTY; without even the implied warranty of
00012     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013     Library General Public License for more details.
00014 
00015     You should have received a copy of the GNU Library General Public
00016     License along with this library; if not, write to the Free
00017     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00018 */
00019 
00020 #ifndef __CS_CSGFX_SHADERVARCONTEXT_H__
00021 #define __CS_CSGFX_SHADERVARCONTEXT_H__
00022 
00023 #include "csextern.h"
00024 
00025 #include "ivideo/shader/shader.h"
00026 #include "shadervar.h"
00027 
00035 class CS_CRYSTALSPACE_EXPORT csShaderVariableContext : public iShaderVariableContext
00036 {
00037 private:
00038   csRefArray<csShaderVariable> variables;
00039 
00040 public:
00041   CS_LEAKGUARD_DECLARE (csShaderVariableContext);
00042   
00043   SCF_DECLARE_IBASE;
00044 
00045   csShaderVariableContext ();
00046   virtual ~csShaderVariableContext ();
00047 
00048   const csRefArray<csShaderVariable>& GetShaderVariables () const
00049   { return variables; }
00050   virtual void AddVariable (csShaderVariable *variable);
00051   virtual csShaderVariable* GetVariable (csStringID name) const;
00052   virtual void PushVariables (csShaderVarStack &stacks) const;
00053   virtual bool IsEmpty() const { return variables.Length() == 0; }  
00054   virtual void ReplaceVariable (csShaderVariable *variable);
00055   virtual void Clear () { variables.Empty(); }
00056 };
00057 
00058 #endif // __CS_CSGFX_SHADERVARCONTEXT_H__

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