csgfx/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 "csutil/scf_implementation.h"
00026 
00027 #include "ivideo/shader/shader.h"
00028 #include "shadervar.h"
00029 
00034 namespace CS
00035 {
00041   class CS_CRYSTALSPACE_EXPORT ShaderVariableContextImpl :
00042     public virtual iShaderVariableContext
00043   {
00044   protected:
00045     csRefArray<csShaderVariable> variables;
00046 
00047   public:
00048     virtual ~ShaderVariableContextImpl();
00049 
00050     const csRefArray<csShaderVariable>& GetShaderVariables () const
00051     { return variables; }
00052     virtual void AddVariable (csShaderVariable *variable);
00053     virtual csShaderVariable* GetVariable (csStringID name) const;
00054     virtual void PushVariables (iShaderVarStack* stacks) const;
00055     virtual bool IsEmpty() const { return variables.Length() == 0; }  
00056     virtual void ReplaceVariable (csShaderVariable *variable);
00057     virtual void Clear () { variables.Empty(); }
00058     virtual bool RemoveVariable (csShaderVariable* variable);
00059   };
00060 }
00061 
00065 class CS_CRYSTALSPACE_EXPORT csShaderVariableContext :
00066   public scfImplementation1<csShaderVariableContext, 
00067                              scfFakeInterface<iShaderVariableContext> >,
00068   public CS::ShaderVariableContextImpl
00069 {
00070 public:
00071   CS_LEAKGUARD_DECLARE (csShaderVariableContext);
00072 
00073   csShaderVariableContext ();
00074   csShaderVariableContext (const csShaderVariableContext& other);
00075   virtual ~csShaderVariableContext ();
00076 };
00077 
00078 #endif // __CS_CSGFX_SHADERVARCONTEXT_H__
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csgfx/shadervarcontext.h
