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# 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__