Documentation de SFML 2.3.2

Attention: cette page se réfère à une ancienne version de SFML. Cliquez ici pour passer à la dernière version.
BlendMode.hpp
1 //
3 // SFML - Simple and Fast Multimedia Library
4 // Copyright (C) 2007-2015 Laurent Gomila (laurent@sfml-dev.org)
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_BLENDMODE_HPP
26 #define SFML_BLENDMODE_HPP
27 
29 // Headers
31 #include <SFML/Graphics/Export.hpp>
32 
33 
34 namespace sf
35 {
36 
41 struct SFML_GRAPHICS_API BlendMode
42 {
49  enum Factor
50  {
51  Zero,
52  One,
60  OneMinusDstAlpha
61  };
62 
69  enum Equation
70  {
71  Add,
72  Subtract
73  };
74 
81  BlendMode();
82 
94  BlendMode(Factor sourceFactor, Factor destinationFactor, Equation blendEquation = Add);
95 
107  BlendMode(Factor colorSourceFactor, Factor colorDestinationFactor,
108  Equation colorBlendEquation, Factor alphaSourceFactor,
109  Factor alphaDestinationFactor, Equation alphaBlendEquation);
110 
112  // Member Data
120 };
121 
132 SFML_GRAPHICS_API bool operator ==(const BlendMode& left, const BlendMode& right);
133 
144 SFML_GRAPHICS_API bool operator !=(const BlendMode& left, const BlendMode& right);
145 
147 // Commonly used blending modes
149 SFML_GRAPHICS_API extern const BlendMode BlendAlpha;
150 SFML_GRAPHICS_API extern const BlendMode BlendAdd;
151 SFML_GRAPHICS_API extern const BlendMode BlendMultiply;
152 SFML_GRAPHICS_API extern const BlendMode BlendNone;
153 
154 } // namespace sf
155 
156 
157 #endif // SFML_BLENDMODE_HPP
158 
159 
(dst.a, dst.a, dst.a, dst.a)
Definition: BlendMode.hpp:59
(src.a, src.a, src.a, src.a)
Definition: BlendMode.hpp:57
Factor
Enumeration of the blending factors.
Definition: BlendMode.hpp:49
Factor colorSrcFactor
Source blending factor for the color channels.
Definition: BlendMode.hpp:114
(src.r, src.g, src.b, src.a)
Definition: BlendMode.hpp:53
(1, 1, 1, 1) - (src.a, src.a, src.a, src.a)
Definition: BlendMode.hpp:58
(1, 1, 1, 1)
Definition: BlendMode.hpp:52
Pixel = Src * SrcFactor + Dst * DstFactor.
Definition: BlendMode.hpp:71
Equation colorEquation
Blending equation for the color channels.
Definition: BlendMode.hpp:116
(0, 0, 0, 0)
Definition: BlendMode.hpp:51
Factor alphaDstFactor
Destination blending factor for the alpha channel.
Definition: BlendMode.hpp:118
(1, 1, 1, 1) - (src.r, src.g, src.b, src.a)
Definition: BlendMode.hpp:54
Blending modes for drawing.
Definition: BlendMode.hpp:41
(dst.r, dst.g, dst.b, dst.a)
Definition: BlendMode.hpp:55
(1, 1, 1, 1) - (dst.r, dst.g, dst.b, dst.a)
Definition: BlendMode.hpp:56
Equation alphaEquation
Blending equation for the alpha channel.
Definition: BlendMode.hpp:119
Equation
Enumeration of the blending equations.
Definition: BlendMode.hpp:69
Factor colorDstFactor
Destination blending factor for the color channels.
Definition: BlendMode.hpp:115
Factor alphaSrcFactor
Source blending factor for the alpha channel.
Definition: BlendMode.hpp:117