Documentation de SFML 1.6

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PostFX.hpp
1 
2 //
3 // SFML - Simple and Fast Multimedia Library
4 // Copyright (C) 2007-2009 Laurent Gomila (laurent.gom@gmail.com)
5 //
6 // This software is provided 'as-is', without any express or implied warranty.
7 // In no event will the authors be held liable for any damages arising from the use of this software.
8 //
9 // Permission is granted to anyone to use this software for any purpose,
10 // including commercial applications, and to alter it and redistribute it freely,
11 // subject to the following restrictions:
12 //
13 // 1. The origin of this software must not be misrepresented;
14 // you must not claim that you wrote the original software.
15 // If you use this software in a product, an acknowledgment
16 // in the product documentation would be appreciated but is not required.
17 //
18 // 2. Altered source versions must be plainly marked as such,
19 // and must not be misrepresented as being the original software.
20 //
21 // 3. This notice may not be removed or altered from any source distribution.
22 //
24 
25 #ifndef SFML_POSTFX_HPP
26 #define SFML_POSTFX_HPP
27 
29 // Headers
31 #include <SFML/Graphics/Drawable.hpp>
32 #include <SFML/Graphics/Image.hpp>
33 #include <istream>
34 #include <map>
35 #include <string>
36 
37 
38 namespace sf
39 {
43 class SFML_API PostFX : public Drawable
44 {
45 public :
46 
51  PostFX();
52 
59  PostFX(const PostFX& Copy);
60 
65  ~PostFX();
66 
75  bool LoadFromFile(const std::string& Filename);
76 
85  bool LoadFromMemory(const std::string& Effect);
86 
94  void SetParameter(const std::string& Name, float X);
95 
103  void SetParameter(const std::string& Name, float X, float Y);
104 
112  void SetParameter(const std::string& Name, float X, float Y, float Z);
113 
121  void SetParameter(const std::string& Name, float X, float Y, float Z, float W);
122 
130  void SetTexture(const std::string& Name, Image* Texture);
131 
140  PostFX& operator =(const PostFX& Other);
141 
148  static bool CanUsePostFX();
149 
150 protected :
151 
156  virtual void Render(RenderTarget& Target) const;
157 
158 private :
159 
169  static std::string PreprocessEffect(std::istream& File);
170 
175  void CreateProgram();
176 
178  // Types
180  typedef std::map<std::string, const Image*> TextureTable;
181 
183  // Member data
185  unsigned int myShaderProgram;
186  TextureTable myTextures;
187  std::string myFragmentShader;
188  mutable Image myFrameBuffer;
189 };
190 
191 } // namespace sf
192 
193 
194 #endif // SFML_POSTFX_HPP