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Shader.hpp
1 //
3 // SFML - Simple and Fast Multimedia Library
4 // Copyright (C) 2007-2013 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_SHADER_HPP
26 #define SFML_SHADER_HPP
27
29 // Headers
31 #include <SFML/Graphics/Export.hpp>
32 #include <SFML/Graphics/Transform.hpp>
33 #include <SFML/Graphics/Color.hpp>
34 #include <SFML/Window/GlResource.hpp>
35 #include <SFML/System/NonCopyable.hpp>
36 #include <SFML/System/Vector2.hpp>
37 #include <SFML/System/Vector3.hpp>
38 #include <map>
39 #include <string>
40
41
42 namespace sf
43 {
44 class InputStream;
45 class Texture;
46
51 class SFML_GRAPHICS_API Shader : GlResource, NonCopyable
52 {
53 public :
54
59 enum Type
60 {
61 Vertex,
62 Fragment
63 };
64
70 struct CurrentTextureType {};
71 static CurrentTextureType CurrentTexture;
72
73 public :
74
81 Shader();
82
87 ~Shader();
88
108 bool loadFromFile(const std::string& filename, Type type);
109
129 bool loadFromFile(const std::string& vertexShaderFilename, const std::string& fragmentShaderFilename);
130
149 bool loadFromMemory(const std::string& shader, Type type);
150
170 bool loadFromMemory(const std::string& vertexShader, const std::string& fragmentShader);
171
190 bool loadFromStream(InputStream& stream, Type type);
191
211 bool loadFromStream(InputStream& vertexShaderStream, InputStream& fragmentShaderStream);
212
232 void setParameter(const std::string& name, float x);
233
254 void setParameter(const std::string& name, float x, float y);
255
277 void setParameter(const std::string& name, float x, float y, float z);
278
301 void setParameter(const std::string& name, float x, float y, float z, float w);
302
322 void setParameter(const std::string& name, const Vector2f& vector);
323
343 void setParameter(const std::string& name, const Vector3f& vector);
344
370 void setParameter(const std::string& name, const Color& color);
371
393 void setParameter(const std::string& name, const sf::Transform& transform);
394
425 void setParameter(const std::string& name, const Texture& texture);
426
448 void setParameter(const std::string& name, CurrentTextureType);
449
471 static void bind(const Shader* shader);
472
483 static bool isAvailable();
484
485 private :
486
499 bool compile(const char* vertexShaderCode, const char* fragmentShaderCode);
500
508 void bindTextures() const;
509
518 int getParamLocation(const std::string& name);
519
521 // Types
523 typedef std::map<int, const Texture*> TextureTable;
524 typedef std::map<std::string, int> ParamTable;
525
527 // Member data
529 unsigned int m_shaderProgram;
530 int m_currentTexture;
531 TextureTable m_textures;
532 ParamTable m_params;
533 };
534
535 } // namespace sf
536
537
538 #endif // SFML_SHADER_HPP
539
540