zenilib: zenilib/jni/external/zenilib/zeni/Zeni/Color.hxx Source File

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Color.hxx
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1 /* This file is part of the Zenipex Library (zenilib).
2 * Copyright (C) 2011 Mitchell Keith Bloch (bazald).
3 *
4 * zenilib is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU Lesser General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
8 *
9 * zenilib is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public License
15 * along with zenilib. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18 #ifndef ZENI_COLOR_HXX
19 #define ZENI_COLOR_HXX
20
21 #include <Zeni/Color.h>
22
23 #include <cassert>
24
25 namespace Zeni {
26
27 unsigned char Color::r_ub() const {
28 return static_cast<unsigned char>(r*0xFF);
29 }
30
31 unsigned char Color::g_ub() const {
32 return static_cast<unsigned char>(g*0xFF);
33 }
34
35 unsigned char Color::b_ub() const {
36 return static_cast<unsigned char>(b*0xFF);
37 }
38
39 unsigned char Color::a_ub() const {
40 return static_cast<unsigned char>(a*0xFF);
41 }
42
43 Uint32 Color::get_rgba() const {
44 return Uint32(r_ub() << 24) | Uint32(g_ub() << 16) | Uint32(b_ub() << 8) | Uint32(a_ub());
45 }
46
47 Uint32 Color::get_argb() const {
48 return Uint32(a_ub() << 24) | Uint32(r_ub() << 16) | Uint32(g_ub() << 8) | Uint32(b_ub());
49 }
50
51 Uint32 Color::get_bgra() const {
52 return Uint32(b_ub() << 24) | Uint32(g_ub() << 16) | Uint32(r_ub() << 8) | Uint32(a_ub());
53 }
54
55 const float & Color::operator[](const int &index) const {
56 assert(-1 < index && index < 4);
57 const float * const ptr = &r;
58 return ptr[index];
59 }
60
61 float & Color::operator[](const int &index) {
62 assert(-1 < index && index < 4);
63 float * const ptr = &r;
64 return ptr[index];
65 }
66
67 }
68
69 #endif
Zeni::Color::a_ub
unsigned char a_ub() const
Get the alpha channel [0x00, 0xFF].
Definition: Color.hxx:39
g
GLboolean GLboolean g
Definition: glew.h:8736
a
GLboolean GLboolean GLboolean GLboolean a
Definition: glew.h:8736
assert
#define assert(x)
Definition: SDL_malloc.c:1234
Zeni::Color::get_rgba
Uint32 get_rgba() const
Get a Uint32 representation of 0xRRGGBBAA.
Definition: Color.hxx:43
Zeni::Color::operator[]
const float & operator[](const int &index) const
Get &#39;index&#39;.
Definition: Color.hxx:55
Zeni::Color::r_ub
unsigned char r_ub() const
Get the red channel [0x00, 0xFF].
Definition: Color.hxx:27
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:145
Zeni::Color::b_ub
unsigned char b_ub() const
Get the blue channel [0x00, 0xFF].
Definition: Color.hxx:35
index
GLuint index
Definition: glew.h:1800
Zeni::Color::g_ub
unsigned char g_ub() const
Get the green channel [0x00, 0xFF].
Definition: Color.hxx:31
Zeni::Color::get_bgra
Uint32 get_bgra() const
Get a Uint32 representation of 0xBBGGRRAA - Endianness swap of rgba.
Definition: Color.hxx:51
r
GLdouble GLdouble GLdouble r
Definition: glew.h:1392
b
GLdouble GLdouble GLdouble b
Definition: glew.h:8383
Color.h
Zeni::Color::r
float r
Definition: Color.h:66
Zeni::Color::get_argb
Uint32 get_argb() const
Get a Uint32 representation of 0xAARRGGBB.
Definition: Color.hxx:47