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Shader.hpp
1 //
3 // SFML - Simple and Fast Multimedia Library
4 // Copyright (C) 2007-2014 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
72 struct CurrentTextureType {};
73
80 static CurrentTextureType CurrentTexture;
81
82 public:
83
90 Shader();
91
96 ~Shader();
97
117 bool loadFromFile(const std::string& filename, Type type);
118
138 bool loadFromFile(const std::string& vertexShaderFilename, const std::string& fragmentShaderFilename);
139
158 bool loadFromMemory(const std::string& shader, Type type);
159
179 bool loadFromMemory(const std::string& vertexShader, const std::string& fragmentShader);
180
199 bool loadFromStream(InputStream& stream, Type type);
200
220 bool loadFromStream(InputStream& vertexShaderStream, InputStream& fragmentShaderStream);
221
241 void setParameter(const std::string& name, float x);
242
263 void setParameter(const std::string& name, float x, float y);
264
286 void setParameter(const std::string& name, float x, float y, float z);
287
310 void setParameter(const std::string& name, float x, float y, float z, float w);
311
331 void setParameter(const std::string& name, const Vector2f& vector);
332
352 void setParameter(const std::string& name, const Vector3f& vector);
353
379 void setParameter(const std::string& name, const Color& color);
380
402 void setParameter(const std::string& name, const sf::Transform& transform);
403
434 void setParameter(const std::string& name, const Texture& texture);
435
457 void setParameter(const std::string& name, CurrentTextureType);
458
480 static void bind(const Shader* shader);
481
495 static bool isAvailable();
496
497 private:
498
511 bool compile(const char* vertexShaderCode, const char* fragmentShaderCode);
512
520 void bindTextures() const;
521
530 int getParamLocation(const std::string& name);
531
533 // Types
535 typedef std::map<int, const Texture*> TextureTable;
536 typedef std::map<std::string, int> ParamTable;
537
539 // Member data
541 unsigned int m_shaderProgram;
542 int m_currentTexture;
543 TextureTable m_textures;
544 ParamTable m_params;
545 };
546
547 } // namespace sf
548
549
550 #endif // SFML_SHADER_HPP
551
552
sf::Transform
Define a 3x3 transform matrix.
Definition: Transform.hpp:42
sf
Definition: Listener.hpp:35
sf::GlResource
Base class for classes that require an OpenGL context.
Definition: GlResource.hpp:40
sf::NonCopyable
Utility class that makes any derived class non-copyable.
Definition: NonCopyable.hpp:41
sf::Vector3
Utility template class for manipulating 3-dimensional vectors.
Definition: Vector3.hpp:37
sf::Shader::Vertex
Vertex shader.
Definition: Shader.hpp:61
sf::Vector2< float >
sf::Shader::Type
Type
Types of shaders.
Definition: Shader.hpp:59
sf::Texture
Image living on the graphics card that can be used for drawing.
Definition: Texture.hpp:47
sf::Color
Utility class for manipulating RGBA colors.
Definition: Color.hpp:40
sf::Shader::CurrentTexture
static CurrentTextureType CurrentTexture
Represents the texture of the object being drawn.
Definition: Shader.hpp:80
sf::Shader
Shader class (vertex and fragment)
Definition: Shader.hpp:51
sf::InputStream
Abstract class for custom file input streams.
Definition: InputStream.hpp:40
sf::Shader::CurrentTextureType
Special type that can be passed to setParameter, and that represents the texture of the object being ...
Definition: Shader.hpp:72