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shadervar.h

00001 /*
00002     Copyright (C) 2003 by Mat Sutcliffe <oktal@gmx.co.uk>
00003 
00004     This library is free software; you can redistribute it and/or
00005     modify it under the terms of the GNU Library General Public
00006     License as published by the Free Software Foundation; either
00007     version 2 of the License, or (at your option) any later version.
00008 
00009     This library is distributed in the hope that it will be useful,
00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012     Library General Public License for more details.
00013 
00014     You should have received a copy of the GNU Library General Public
00015     License along with this library; if not, write to the Free
00016     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00017 */
00018 
00019 #ifndef __CS_GFX_SHADERVAR_H__
00020 #define __CS_GFX_SHADERVAR_H__
00021 
00022 #include "csutil/refcount.h"
00023 #include "csutil/strhash.h"
00024 #include "iutil/string.h"
00025 #include "csgeom/vector2.h"
00026 #include "csgeom/vector3.h"
00027 #include "csgeom/vector4.h"
00028 #include "csgfx/rgbpixel.h"
00029 
00030 struct iTextureHandle;
00031 struct iTextureWrapper;
00032 
00036 class csShaderVariable : public csRefCount
00037 {
00038 public:
00040   enum VariableType
00041   {
00042     INT = 1,
00043     FLOAT,
00044     STRING,
00045     COLOR,
00046     TEXTURE,
00047     VECTOR2,
00048     VECTOR3,
00049     VECTOR4
00050   };
00051 
00052 private:
00053   csStringID Name;
00054 
00055   VariableType Type;
00056 
00057   int Int;
00058   csRef<iString> String;
00059   csRef<iTextureHandle> TextureHandValue;
00060   csRef<iTextureWrapper> TextureWrapValue;
00061   csVector4 VectorValue;
00062 
00063 public:
00065   csShaderVariable (csStringID name);
00066 
00068   VariableType GetType() const { return Type; }
00070   void SetType (VariableType t) { Type = t; }
00071 
00073   csStringID GetName() const { return Name; }
00074 
00076   bool GetValue (int& value) const;
00078   bool GetValue (float& value) const;
00080   bool GetValue (iString*& value) const;
00082   bool GetValue (csRGBpixel& value) const;
00084   bool GetValue (iTextureHandle*& value) const;
00086   bool GetValue (iTextureWrapper*& value) const;
00088   bool GetValue (csVector2& value) const;
00090   bool GetValue (csVector3& value) const;
00092   bool GetValue (csVector4& value) const;
00093 
00095   bool SetValue (int value);
00097   bool SetValue (float value);
00099   bool SetValue (iString* value);
00101   bool SetValue (const csRGBpixel &value);
00103   bool SetValue (iTextureHandle* value);
00105   bool SetValue (iTextureWrapper* value);
00107   bool SetValue (const csVector2 &value);
00109   bool SetValue (const csVector3 &value);
00111   bool SetValue (const csVector4 &value);
00112 };
00113 
00114 #endif

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