1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2023 Laurent Gomila (laurent@sfml-dev.org)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
// you must not claim that you wrote the original software.
// If you use this software in a product, an acknowledgment
// in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
// and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
////////////////////////////////////////////////////////////
#ifndef SFML_GLSL_HPP
#define SFML_GLSL_HPP
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <SFML/Graphics/Transform.hpp>
#include <SFML/Graphics/Color.hpp>
#include <SFML/System/Vector2.hpp>
#include <SFML/System/Vector3.hpp>
namespace sf
{
namespace priv
{
// Forward declarations
template <std::size_t Columns, std::size_t Rows>
struct Matrix;
template <typename T>
struct Vector4;
#include <SFML/Graphics/Glsl.inl>
} // namespace priv
////////////////////////////////////////////////////////////
/// \brief Namespace with GLSL types
///
////////////////////////////////////////////////////////////
namespace Glsl
{
////////////////////////////////////////////////////////////
/// \brief 2D float vector (\p vec2 in GLSL)
///
////////////////////////////////////////////////////////////
typedef Vector2<float> Vec2;
////////////////////////////////////////////////////////////
/// \brief 2D int vector (\p ivec2 in GLSL)
///
////////////////////////////////////////////////////////////
typedef Vector2<int> Ivec2;
////////////////////////////////////////////////////////////
/// \brief 2D bool vector (\p bvec2 in GLSL)
///
////////////////////////////////////////////////////////////
typedef Vector2<bool> Bvec2;
////////////////////////////////////////////////////////////
/// \brief 3D float vector (\p vec3 in GLSL)
///
////////////////////////////////////////////////////////////
typedef Vector3<float> Vec3;
////////////////////////////////////////////////////////////
/// \brief 3D int vector (\p ivec3 in GLSL)
///
////////////////////////////////////////////////////////////
typedef Vector3<int> Ivec3;
////////////////////////////////////////////////////////////
/// \brief 3D bool vector (\p bvec3 in GLSL)
///
////////////////////////////////////////////////////////////
typedef Vector3<bool> Bvec3;
#ifdef SFML_DOXYGEN
////////////////////////////////////////////////////////////
/// \brief 4D float vector (\p vec4 in GLSL)
///
/// 4D float vectors can be implicitly converted from sf::Color
/// instances. Each color channel is normalized from integers
/// in [0, 255] to floating point values in [0, 1].
/// \code
/// sf::Glsl::Vec4 zeroVector;
/// sf::Glsl::Vec4 vector(1.f, 2.f, 3.f, 4.f);
/// sf::Glsl::Vec4 color = sf::Color::Cyan;
/// \endcode
////////////////////////////////////////////////////////////
typedef implementation-defined Vec4;
////////////////////////////////////////////////////////////
/// \brief 4D int vector (\p ivec4 in GLSL)
///
/// 4D int vectors can be implicitly converted from sf::Color
/// instances. Each color channel remains unchanged inside
/// the integer interval [0, 255].
/// \code
/// sf::Glsl::Ivec4 zeroVector;
/// sf::Glsl::Ivec4 vector(1, 2, 3, 4);
/// sf::Glsl::Ivec4 color = sf::Color::Cyan;
/// \endcode
////////////////////////////////////////////////////////////
typedef implementation-defined Ivec4;
////////////////////////////////////////////////////////////
/// \brief 4D bool vector (\p bvec4 in GLSL)
///
////////////////////////////////////////////////////////////
typedef implementation-defined Bvec4;
////////////////////////////////////////////////////////////
/// \brief 3x3 float matrix (\p mat3 in GLSL)
///
/// The matrix can be constructed from an array with 3x3
/// elements, aligned in column-major order. For example,
/// a translation by (x, y) looks as follows:
/// \code
/// float array[9] =
/// {
/// 1, 0, 0,
/// 0, 1, 0,
/// x, y, 1
/// };
///
/// sf::Glsl::Mat3 matrix(array);
/// \endcode
///
/// Mat3 can also be implicitly converted from sf::Transform:
/// \code
/// sf::Transform transform;
/// sf::Glsl::Mat3 matrix = transform;
/// \endcode
////////////////////////////////////////////////////////////
typedef implementation-defined Mat3;
////////////////////////////////////////////////////////////
/// \brief 4x4 float matrix (\p mat4 in GLSL)
///
/// The matrix can be constructed from an array with 4x4
/// elements, aligned in column-major order. For example,
/// a translation by (x, y, z) looks as follows:
/// \code
/// float array[16] =
/// {
/// 1, 0, 0, 0,
/// 0, 1, 0, 0,
/// 0, 0, 1, 0,
/// x, y, z, 1
/// };
///
/// sf::Glsl::Mat4 matrix(array);
/// \endcode
///
/// Mat4 can also be implicitly converted from sf::Transform:
/// \code
/// sf::Transform transform;
/// sf::Glsl::Mat4 matrix = transform;
/// \endcode
////////////////////////////////////////////////////////////
typedef implementation-defined Mat4;
#else // SFML_DOXYGEN
typedef priv::Vector4<float> Vec4;
typedef priv::Vector4<int> Ivec4;
typedef priv::Vector4<bool> Bvec4;
typedef priv::Matrix<3, 3> Mat3;
typedef priv::Matrix<4, 4> Mat4;
#endif // SFML_DOXYGEN
} // namespace Glsl
} // namespace sf
#endif // SFML_GLSL_HPP
////////////////////////////////////////////////////////////
/// \namespace sf::Glsl
/// \ingroup graphics
///
/// \details The sf::Glsl namespace contains types that match
/// their equivalents in GLSL, the OpenGL shading language.
/// These types are exclusively used by the sf::Shader class.
///
/// Types that already exist in SFML, such as \ref sf::Vector2<T>
/// and \ref sf::Vector3<T>, are reused as typedefs, so you can use
/// the types in this namespace as well as the original ones.
/// Others are newly defined, such as Glsl::Vec4 or Glsl::Mat3. Their
/// actual type is an implementation detail and should not be used.
///
/// All vector types support a default constructor that
/// initializes every component to zero, in addition to a
/// constructor with one parameter for each component.
/// The components are stored in member variables called
/// x, y, z, and w.
///
/// All matrix types support a constructor with a float*
/// parameter that points to a float array of the appropriate
/// size (that is, 9 in a 3x3 matrix, 16 in a 4x4 matrix).
/// Furthermore, they can be converted from sf::Transform
/// objects.
///
/// \see sf::Shader
///
////////////////////////////////////////////////////////////
|
