CrystalSpace

Public API Reference

cstool/gentrtex.h

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00001 /*
00002     Copyright (C) 2001 by W.C.A. Wijngaards
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_GENTERTEX_H__
00020 #define __CS_GENTERTEX_H__
00021 
00026 #include "csextern.h"
00027 
00028 #include "csgeom/vector2.h"
00029 #include "csutil/cscolor.h"
00030 #include "csutil/scf.h"
00031 
00032 struct iImage;
00033 
00034 struct csRGBpixel;
00035 
00040 class CS_CRYSTALSPACE_EXPORT csGenerateImageValue
00041 {
00042 public:
00044   virtual ~csGenerateImageValue() {}
00046   virtual float GetValue (float x, float y) = 0;
00047 };
00048 
00053 class CS_CRYSTALSPACE_EXPORT csGenerateImageTexture
00054 {
00055 public:
00057   virtual ~csGenerateImageTexture() {}
00059   virtual void GetColor(csColor& col, float x, float y) = 0;
00060 };
00061 
00062 
00073 class CS_CRYSTALSPACE_EXPORT csGenerateImage
00074 {
00075 private:
00077   csGenerateImageTexture *tex;
00078 
00079 public:
00081   csGenerateImage();
00083   ~csGenerateImage();
00084 
00089   void SetTexture(csGenerateImageTexture *t) {tex = t;}
00090 
00098   iImage *Generate(int totalw, int totalh, int startx, int starty,
00099     int partw, int parth);
00100 };
00101 
00106 class CS_CRYSTALSPACE_EXPORT csGenerateImageLayer
00107 {
00108 public:
00110   float value;
00112   csGenerateImageTexture *tex;
00114   csGenerateImageLayer *next;
00115 };
00116 
00120 class CS_CRYSTALSPACE_EXPORT csGenerateImageTextureSolid : 
00121   public csGenerateImageTexture
00122 {
00123 public:
00125   csColor color;
00127   virtual ~csGenerateImageTextureSolid() {}
00129   virtual void GetColor(csColor& col, float, float) {col = color;}
00130 };
00131 
00135 class CS_CRYSTALSPACE_EXPORT csGenerateImageTextureSingle : 
00136   public csGenerateImageTexture
00137 {
00138 public:
00140   csRef<iImage> image;
00142   csVector2 scale;
00144   csVector2 offset;
00145 
00147   virtual ~csGenerateImageTextureSingle();
00149   void SetImage(iImage *im);
00151   virtual void GetColor(csColor& col, float x, float y);
00153   void GetImagePixel(iImage *image, int x, int y, csRGBpixel& res);
00155   void ComputeLayerColor(const csVector2& pos, csColor& col);
00156 };
00157 
00162 class CS_CRYSTALSPACE_EXPORT csGenerateImageTextureBlend : 
00163   public csGenerateImageTexture
00164 {
00165 public:
00167   csGenerateImageLayer *layers;
00169   csGenerateImageValue *valuefunc;
00171   csGenerateImageTextureBlend();
00173   virtual ~csGenerateImageTextureBlend();
00175   virtual void GetColor(csColor& col, float x, float y);
00177   void AddLayer(float value, csGenerateImageTexture *tex);
00178 };
00179 
00180 SCF_VERSION (iGenerateImageFunction, 0, 0, 1);
00181 
00186 struct iGenerateImageFunction : public iBase
00187 {
00189   virtual float GetValue (float dx, float dy) = 0;
00190 };
00191 
00192 
00197 class CS_CRYSTALSPACE_EXPORT csGenerateImageValueFunc
00198         : public csGenerateImageValue
00199 {
00200 private:
00202   csRef<iGenerateImageFunction> heightfunc;
00203 
00204 public:
00205   csGenerateImageValueFunc () { }
00206   virtual ~csGenerateImageValueFunc ()
00207   {
00208   }
00209 
00211   virtual float GetValue(float x, float y)
00212   {
00213     return heightfunc->GetValue (x, y);
00214   }
00216   void SetFunction (iGenerateImageFunction* func)
00217   {
00218     heightfunc = func;
00219   }
00220 };
00221 
00225 class CS_CRYSTALSPACE_EXPORT csGenerateImageValueFuncConst : 
00226   public csGenerateImageValue
00227 {
00228 public:
00230   float constant;
00232   virtual float GetValue(float, float){return constant;}
00233 };
00234 
00239 class CS_CRYSTALSPACE_EXPORT csGenerateImageValueFuncTex : 
00240   public csGenerateImageValue
00241 {
00242 public:
00244   csGenerateImageTexture *tex;
00246   virtual ~csGenerateImageValueFuncTex();
00248   virtual float GetValue(float x, float y);
00249 };
00250 
00251 
00252 #endif // __CS_GENTERTEX_H__
00253 

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